CN102462452B - Electric cleaner - Google Patents

Abstract

Provided is an electric vacuum cleaner capable of sweeping with power suitable for a sweeping state. An electric vacuum cleaner has a vacuum cleaner main body housing an electric blower (18). The electric vacuum cleaner has an air duct communicating with the suction side of the electric blower (18). The electric vacuum cleaner has an optical sensor (33) for detecting the amount of dust passing through the air duct. The electric vacuum cleaner has a hand operation part for holding and operating. The electric vacuum cleaner has an operation detection unit (45) for detecting the operation of the operation part at hand. The electric vacuum cleaner has a control unit (37) that controls the drive of the electric blower (18) based on the amount of dust detected by the optical sensor (33) and the motion detected by the motion detection unit (45). .

Description

electric vacuum cleaner

This application is based on Japanese Patent Application No. 2010-243615 (filing date: October 29, 2010), and enjoys the priority of this application. This application incorporates the entire contents of this application by referring to this application.

technical field

Embodiment of this invention relates to the electric vacuum cleaner provided with the dust amount detection means which detects the dust amount which passes through the air duct connected to the suction side of an electric blower.

Background technique

Conventionally, for example, a canister electric vacuum cleaner includes a vacuum cleaner main body having a main body case for accommodating an electric blower. On the main body of the vacuum cleaner, a dust collecting part communicating with the suction side of the electric blower is arranged, and an air passage forming body is connected to the dust collecting part, and the air passage forming body divides the air passage leading to the suction side of the electric blower into internal. From the base end side to the front end side, the hose body, the extension pipe and the ground brush are sequentially connected to form the air channel forming body. In addition, an optical sensor is arranged inside the air duct, and the optical sensor is a dust amount detection unit that detects the amount of dust passing through the inside of the air duct. The input of the electric blower or the motor on the ground brush is controlled.

In electric vacuum cleaners, the required input to the electric blower differs not only according to the amount of dust detected by the dust amount detection unit, but also according to the cleaning state such as how the user operates the electric vacuum cleaner, so it is desirable to set it to suit the cleaning state input of.

Contents of the invention

The present invention has been made in view of this point, and an object of the present invention is to provide an electric vacuum cleaner capable of sweeping with power suitable for a sweeping state.

The electric vacuum cleaner of embodiment has the vacuum cleaner main body which accommodates the electric blower. The electric vacuum cleaner has an air duct connected to the suction side of the electric blower. In addition, this electric vacuum cleaner has a dust amount detecting unit for detecting the amount of dust passing through the air duct. In addition, this electric vacuum cleaner has an at-hand operation part which is grasped and operated. In addition, this electric vacuum cleaner has an operation detection unit for detecting the operation of the hand operation unit. In addition, the electric vacuum cleaner has a control unit for controlling driving of the electric blower based on the amount of dust detected by the dust amount detection unit and the operation of the hand operation portion detected by the motion detection unit.

According to the electric vacuum cleaner of the above-mentioned structure, the control unit controls the drive of the electric blower according to the amount of dust detected by the dust amount detection unit and the operation of the hand operation portion detected by the motion detection unit. Both the information from the amount detection unit and the information from the motion detection unit can estimate the user’s cleaning state with high precision, and can perform cleaning with power suitable for the cleaning state.

Description of drawings

FIG. 1 is a block diagram showing an internal structure of an electric vacuum cleaner according to a first embodiment.

Fig. 2 is a longitudinal sectional view showing a part of the same electric vacuum cleaner.

Fig. 3 is a perspective view showing the same electric vacuum cleaner.

Fig. 4 is a matrix showing the control of the same electric vacuum cleaner.

Fig. 5 is a flowchart showing the control of the same electric vacuum cleaner.

Fig. 6 is a block diagram showing an internal structure of a vacuum cleaner according to a second embodiment.

Fig. 7 is a perspective view showing the same electric vacuum cleaner.

Fig. 8 is a matrix showing the control of the same electric vacuum cleaner.

Fig. 9 is a flowchart showing the control of the same electric vacuum cleaner.

Fig. 10 is a block diagram showing an internal structure of an electric vacuum cleaner according to a third embodiment.

Fig. 11 is a plan view showing a part of the suction port body of the same electric vacuum cleaner.

Fig. 12 is a matrix showing the control of the same electric vacuum cleaner.

Fig. 13 is a flowchart showing the control of the same electric vacuum cleaner.

Fig. 14 is a block diagram showing an internal structure of a vacuum cleaner according to a fourth embodiment.

Fig. 15 is a matrix showing the control of the same electric vacuum cleaner.

Fig. 16 is a flowchart showing the control of the same electric vacuum cleaner.

Fig. 17 is a matrix showing control of the electric vacuum cleaner of the fifth embodiment.

Fig. 18 is a flowchart showing the control of the same electric vacuum cleaner.

Fig. 19 is a matrix showing control of the electric vacuum cleaner of the sixth embodiment.

Fig. 20 is a flowchart showing the control of the same electric vacuum cleaner.

Detailed ways

Next, the configuration of the first embodiment will be described with reference to the drawings.

In FIG. 3 , 11 denotes a so-called horizontal electric vacuum cleaner, and the electric vacuum cleaner 11 has: a vacuum cleaner main body 12; and an air duct forming body 13, which is connected to the vacuum cleaner main body in a detachable manner. 12 on the pipe section.

The vacuum cleaner main body 12 has a hollow main body case 15, which can rotate and run on the surface to be cleaned. room and electric blower room. And the electric blower 18 is housed in the electric blower chamber, and the suction side of the electric blower 18 is connected to the main body dust collection chamber. In addition, in the dust collecting chamber of the main body, a dust collecting part such as a filter, a dust collecting bag, or a dust collecting device (dust collecting cup) is disposed. In addition, a main body suction port 19 is formed at the front opening of the main body case 15 , and the main body suction port 19 communicates with the main body dust collection chamber and is connected to the base end side of the air passage forming body 13 .

In addition, the air duct forming body 13 is equipped with: a long hose body 21; an extension pipe 22 connected to the hose body 21 in a detachable manner; The mode of installation and removal is connected to the extension pipe 22. Inside the air passage forming body 13, an air passage W leading to the suction side of the electric blower 18 is formed. In addition, this air passage forming body 13 can also be used by detaching the floor brush 23, for example, and can also be used by detaching the floor brush 23 and the extension pipe 22.

The hose body 21 is integrally provided with the following members: an elongated cylindrical hose body 25; a connecting pipe portion 26 formed in communication with the base end side (downstream end side) as one end side of the hose body 25; A hand operation portion (hand operation portion) 27 for holding and operating the air passage forming body 13 is formed in communication with the other end side of the hose main body 25 (upstream end side).

The hose main body 25 is formed in a cylindrical corrugated shape from a flexible synthetic resin or the like; inside and outside the air passage W, a wiring (not shown) is spirally attached to the side of the operation unit 27 at hand. It is electrically connected to the vacuum cleaner main body 12 side.

The connecting pipe part 26 is a part inserted into and connected to the main body suction port 19, and is formed in a cylindrical shape from synthetic resin harder than the hose main body 25 or the like. In addition, terminals not shown in the figure are arranged on the connecting pipe part 26, and the terminals are electrically connected to the wiring arranged in the hose main body 25. By inserting the connecting pipe part 26 into the main body suction port 19, these terminals are connected to the vacuum cleaner. The main body 12 side is electrically connected. In addition, an optical sensor 33 is arranged inside the main body suction port 19 to which the connecting pipe 26 is connected.

Here, as shown in FIG. 1 and FIG. 2 , in the photosensor 33, for example, a light emitting unit 35 and a light receiving unit 36 are arranged at opposite positions, the light emitting unit 35 is a light emitting unit emitting infrared light, and the light receiving unit 36 is a light emitting unit. The light receiving unit that receives the infrared light emitted by the light emitting unit 35 can output a signal corresponding to the amount of dust passing through the air duct W to the control unit 37 based on the amount of infrared light received by the light receiving unit 36 from the light emitting unit 35 .

The light emitting part 35 has: a light emitting element 35a such as an LED for outputting light such as infrared light; 35b, 35c.

The light emitting element 35a is arranged downward, for example, above the main body suction port 19 of the cleaner main body 12, and is configured to output infrared light downward. In addition, the positive side of the light emitting element 35 a is electrically connected to the power supply unit 38 via a resistor R1 such as a variable resistor, and the negative side is grounded.

In addition, one light-emitting-side lens 35 b is arranged on the inner surface of the main body suction port 19 below the infrared light output side of the light-emitting element 35 a.

In addition, another light-emitting side lens 35c is arranged at a position facing below the light-emitting element 35a (light-emitting side lens 35b) in a state where the connecting pipe portion 26 of the air passage forming body 13 is connected to the main body suction port 19. The other light-emitting side lens 35c is fitted in the light-emitting side hole 35d pierced on the connecting pipe portion 26 in the radial direction to airtightly close the light-emitting side hole 35d, and one end side faces the light-emitting element 35a side ( The light-emitting side lens 35b side), and the other end side faces the inside of the air duct W. That is, the air in the air duct W does not flow out of the air duct W from the light emitting side hole portion 35d.

Similarly, the light receiving part 36 has: a light receiving element 36a such as a phototransistor, which detects the infrared light output from the light emitting part 35; The light-receiving side light guide member of the light-receiving element 36a.

The light-receiving element 36a is, for example, disposed at the lower portion of the main body suction port 19 of the cleaner main body 12 facing upward, that is, toward the light-emitting element 35a side, and is configured to receive infrared light output from the light-emitting element 35a. In addition, this light receiving element 36a constitutes a so-called emitter ground circuit, and the collector side of the emitter ground circuit is electrically connected to a resistor R2, and the resistor R2 and the resistor R1 are connected in parallel to a power supply unit 38 as an output unit thereof. The connection point between the resistor R2 and the collector side is electrically connected to the amplifier unit 39 and the control unit 37, which are composed of an OP amplifier and the like, for example.

In addition, one light-receiving side lens 36b is disposed on the inner surface of the main body suction port 19 on the input side of the infrared light to the light-receiving element 36a, that is, above.

In addition, another light-receiving side lens 36c is disposed at a position facing above the light-receiving element 36a (light-receiving-side lens 36b) in a state where the connecting pipe portion 26 of the air passage forming body 13 is connected to the main body suction port 19. . The other light-receiving-side lens 36c is fitted in a light-receiving-side hole 36d pierced in the connecting pipe portion 26 in the radial direction so as to airtightly close the light-receiving-side hole 36d, with one end side facing the light-receiving element 36a side ( The light-receiving side lens 36b side), and the other end side faces the inside of the air duct W. That is, the air in the air duct W does not flow out of the air duct W from the light-receiving side hole portion 36d.

In addition, the control unit 37, for example, uses a triac Tr1 as an electric blower control element to phase control the action of the electric blower 18, for example, the control unit 37 is disposed in the exhaust air duct of the electric blower 18, etc. In addition, this control unit 37 is supplied with power from a commercial AC power supply e, for example, through a power supply cable not shown.

In addition, when the power supply unit 38 is electrically connected to the commercial AC power supply e, that is, when the power supply (voltage) is turned on (turned on), in other words, when the plug is inserted, it is defined by the power supply from the commercial AC power supply e. Constant voltage source of constant voltage such as 5V.

The amplification section 39 is electrically connected to the control unit 37 via a pulse shaper 40 .

In addition, as shown in FIG. 3 , the hand-operated portion 27 is formed in a substantially cylindrical shape from synthetic resin harder than the hose body 25 , and the grip portion 41 for the user to hold protrudes from the upstream end side to the downstream end side. A plurality of setting buttons 42 which are setting means for setting the operation of the electric blower 18 and the like to the control means 37 ( FIG. 1 ) are arranged on the grip part 41 . These setting buttons 42 are electrically connected to the control unit 37 ( FIG. 1 ) and the like in the cleaner body 12 via wiring in the hose body 25 . Furthermore, inside the grip portion 41 , a motion detection unit 45 for detecting motion of the hand operation portion 27 is arranged. The motion detection unit 45 is a known device such as an inclination sensor, and can detect whether the hand operation unit 27 is moving (stationary), in other words, whether the user is operating (using) the hand operation unit 27 . In addition, as shown in FIG. 1 , the motion detection unit 45 is electrically connected to the control unit 37 .

In addition, the ground brush 23 shown in FIG. 3 can constitute a part (upstream end) of the air duct W, and includes: a connecting pipe 47, one end side of which is connected to the front end side (upstream end side) of the extension pipe 22; The body 48 is connected to the other end side of the connecting pipe 47 so as to be rotatable in the vertical direction or the circumferential direction. This ground brush 23 can move on the surface to be cleaned. In addition, a suction port communicating with the other end side of the connection pipe 47 is formed in the lower portion of the outer casing 48 facing the ground.

Next, the operation of the above-mentioned first embodiment will be described with reference also to the matrix shown in FIG. 4 and the flowchart shown in FIG. 5 .

When the user installs the dust collecting unit in the main body 12 of the vacuum cleaner, if the power cable is connected (inserted) to a socket on the wall or the like, the control unit 37 and the power supply unit 38 are supplied from the commercial AC power supply e ( Applied) power (voltage).

The control unit 37 waits for the operation input of the setting button 42, and drives the electric blower 18 according to the operation mode set by the user through the operation of the setting button 42, or stops the driving electric blower 18. Next, the operation of each part when the electric blower 18 is driven in the automatic mode, that is, the mode automatically controlled and input by the control unit 37 will be described.

After the user drives the electric blower 18, the user uses the grip part 41 to move the ground brush 23 back and forth on the surface to be cleaned, and utilizes the negative pressure of the driven electric blower 18 to inhale the dust on the surface to be cleaned together with the air through the air duct W. Collected in the dust collection department.

In addition, in this sweeping state, the control unit 37 uses, for example, an input signal that amplifies the output signal output from the optical sensor 33 by the amplifying unit 39, performs pulse shaping by the pulse shaper 40, and inputs the signal to the air passage W. The amount of dust is monitored. In other words, vacuum cleaner 11 detects the amount of dust using optical sensor 33 (step 1).

That is, when the dust passes through the air duct W, the dust blocks the light from the light emitting element 35a of the light emitting unit 35, so the amount of light received by the light receiving element 36a of the light receiving unit 36 decreases, and the light sensor 33 can detect that the dust has passed through the air duct W. situation within. Therefore, the greater the amount of dust passing through the air duct W, the less the amount of light received in the light receiving element 36a of the light receiving unit 36, so the output signal from the light sensor 33 is amplified by the amplifier 39 and pulsed by the pulse shaper 40. After shaping, the input signal input to the control unit 37 becomes relatively smaller. Accordingly, the control unit 37 can judge the amount of dust passing through the air duct W (at the position of the surface to be cleaned during cleaning) according to the size of the above input signal. .

And, the control unit 37, for example, compares the above-mentioned input signal with a preset threshold to determine whether the amount of dust detected by the optical sensor 33 is greater than or equal to a predetermined amount (step 2). (less than a predetermined amount), the control unit 37 uses the motion detection unit 45 to determine whether the hand operation unit 27 is in motion (step 3).

In this step 3, when the control unit 37 judges that the operation part 27 at hand is not in motion (the operation part 27 at hand is stationary), for example, it is assumed that the user does not hold the operation part 27 at hand and does not perform normal cleaning. For example, in a sweeping state where the air duct forming body 13 is placed in a state where the electric vacuum cleaner 11 (electric blower 18) is driven, the control unit 37 sets the phase angle of the input of the electric blower 18 set by the triac Tr1 to The smallest prescribed minimum value, the first value for the prescribed electric blower, operates the electric blower 18 at the prescribed first electric blower input (power 1) as the lowest input (step 4).

In addition, in step 3, when the control unit 37 judges that the hand operation part 27 is in motion (the hand operation part 27 is not stationary), for example, although the user sweeps the brush 23 back and forth as usual, the control The unit 37 is assumed to be in a sweeping state with a small amount of dust on the surface to be cleaned, etc., and the phase angle of the input of the electric blower 18 set by the triac Tr1 is set to a predetermined electric blower that is larger than the first value for the electric blower. With the second value, the electric blower 18 is operated at a predetermined second electric blower input (power 2) greater than the first electric blower input (step 5).

On the other hand, when it is determined in step 2 that the amount of dust detected by optical sensor 33 is greater than a predetermined amount, control unit 37 uses motion detection unit 45 to determine whether hand operation unit 27 is in motion (step 6).

In this step 6, when the control unit 37 judges that the operation unit 27 at hand is not in motion (the operation unit 27 at hand is stationary), for example, it is assumed that it is in a sweeping state at a place where dust is locally concentrated such as a wall, etc. The phase angle of the input of the electric blower 18 set by the bidirectional thyristor Trl is set to a predetermined third value for the electric blower that is larger than the second value for the electric blower, so that the electric blower 18 is greater than the input of the second electric blower. Operates under the prescribed third electric blower input (power 3) (step 7).

In addition, in step 6, when the control unit 37 judges that the hand operation part 27 is in motion (the hand operation part 27 is not stationary), for example, it is assumed that there is a lot of dust on the surface to be cleaned, and the user moves back and forth as usual. The ground brush 23 is used to clean the sweeping state, etc., and the control unit 37 sets the input phase angle of the electric blower 18 set by the bidirectional thyristor Tr1 to a predetermined fourth value for the electric blower that is larger than the third value for the electric blower. value, the electric blower 18 is operated under a predetermined fourth electric blower input (power 4) greater than the third input (step 8).

That is, according to the amount of dust detected by the optical sensor 33 and the operation state of the hand operation part 27 detected by the operation detection unit 45, the cleaning state is assumed, and the control unit 37 controls the drive (input) of the electric blower 18 correspondingly to the assumed cleaning state. By performing control, the user's cleaning state can be assumed with high precision based on two pieces of information, the information from the photosensor 33 and the information from the motion detection unit 45, and cleaning can be performed with power suitable for the cleaning state.

Next, a second embodiment will be described with reference to FIGS. 6 to 9 . In addition, the same structure and function as the said 1st Embodiment are attached|subjected to the same code|symbol, and the description is abbreviate|omitted.

The structure of this 2nd Embodiment is equipped with the rotating brush 51 as a rotating cleaning body on the floor brush 23 in the structure of the said 1st Embodiment.

That is, as shown in FIG. 7 , the floor brush 23 has a rotating brush 51 rotatably mounted on a horizontally long suction port formed on the bottom surface of the outer casing 48 opposite to the surface to be cleaned. . The rotating brush 51 is connected to a motor 52 housed in the outer casing 48 through a transmission unit 53 such as a conveyor belt, and is rotationally driven by the motor 52 .

The rotating brush 51 scrapes off the dust entering or clinging to the surface to be cleaned by rotating. This rotating brush 51 can be provided in any structure, For example, it is preferable to be equipped with cleaning members, such as a brush and a blade.

As shown in FIG. 6, the phase control of the motor 52 is performed by the control unit 37 through the triac Tr2 as a motor control element. In addition, the electric vacuum cleaner 11 (electric blower 18) is turned on and off simultaneously (corresponding to on and off). In addition, these control means 37 and the motor 52 (triac Tr2 ) are electrically connected by unillustrated wiring passing through the inside of the air passage forming body 13 .

Next, the operation of the above-mentioned second embodiment will be described with reference also to the matrix shown in FIG. 8 and the flowchart shown in FIG. 9 .

In step 3 of the above-mentioned first embodiment, when the control unit 37 judges that the operation unit 27 at hand is not in motion (the operation unit 27 at hand is stationary), for example, it is assumed that the user does not hold the operation unit 27 at hand, and no operation is performed. The state of normal sweeping, for example, the sweeping state of placing the air duct forming body 13 under the state of driving the electric vacuum cleaner 11 (electric blower 18), etc., the control unit 37 will be the input of the electric blower 18 set by the triac Tr1 The phase angle of the above-mentioned electric blower is set as the first value for the above-mentioned electric blower, the electric blower 18 is operated under the above-mentioned first electric blower input (power 1), and the phase angle of the input of the motor 52 set by the triac Tr2 The predetermined minimum value, that is, the predetermined first motor value, is set to be the smallest, and the electric motor 52 is operated under the predetermined first motor input as the minimum input, thereby causing the rotating brush 51 to operate at the predetermined first motor input as the minimum rotational speed. Spin at one speed (speed 1) (step 11).

In addition, in step 3, when the control unit 37 judges that the operation part 27 at hand is in motion (the operation part 27 at hand is not stationary), for example, it is assumed that the user moves the brush 23 back and forth as usual to sweep, but the brush 23 is swept away. In the sweeping state with less dust on the surface, etc., the control unit 37 sets the input phase angle of the electric blower 18 set by the triac Tr1 as the second value for the electric blower, so that the electric blower 18 is set at the second value. The electric blower operates under the input (power 2), and the phase angle of the input of the motor 52 set by the triac Tr2 is set to a predetermined second value for the motor that is larger than the first value for the motor, so that the motor 52 is By operating the predetermined second motor input greater than the first motor input, the rotating brush 51 is rotated at a predetermined second rotational speed (rotational speed 2) greater than the first rotational speed (step 12).

And, in step 6, when the control unit 37 judges that the operation part 27 at hand is not in motion (the operation part 27 at hand is stationary), for example, it is assumed to be a sweeping state at a place where a lot of dust is locally concentrated, such as a place near a wall of a carpet. , the control unit 37 sets the phase angle of the input of the electric blower 18 set by the triac Tr1 as the third value for the above-mentioned electric blower, and makes the electric blower 18 operate under the above-mentioned third electric blower input (power 3), and , the phase angle of the input of the motor 52 set by the triac Tr2 is set to a specified third value for the motor that is larger than the second value for the motor, by making the motor 52 at a specified value that is larger than the second motor input The third motor is input and operated to rotate the rotating brush 51 at a predetermined third rotational speed (rotational speed 3) higher than the second rotational speed (step 13).

In addition, in step 6, when the control unit 37 judges that the hand operation part 27 is in motion (the hand operation part 27 is not stationary), for example, it is assumed that there is a lot of dust on the surface to be cleaned, and the user moves back and forth as usual. Ground brush 23 to carry out the sweeping state etc. of sweeping, this control unit 37 sets the phase angle of the input of the electric blower 18 that is set by bidirectional thyristor Tr1 as the fourth value for the above-mentioned electric blower, so that the electric blower 18 is in the above-mentioned fourth The electric blower is operated under the input (power 4), and the phase angle of the input of the motor 52 set by the triac Tr2 is set to a predetermined fourth value for the motor that is larger than the third value for the motor, so that the motor 52 is at By operating at a predetermined fourth motor input greater than the third motor input, the rotating brush 51 is rotated at a predetermined fourth rotational speed (rotational speed 4) greater than the third rotational speed (step 14).

As described above, the control unit 37 assumes a cleaning state based on the amount of dust detected by the optical sensor 33 and the movement of the hand operation portion 27 detected by the movement detection unit 45, and controls the electric blower 18 and the motor respectively in correspondence with the assumed cleaning state. 52 (rotating brush 51) is controlled, thereby not only the electric blower 18, but also the motor 52 (rotating brush 51) can be driven in a state suitable for the sweeping state, so it is possible to use the power suitable for the sweeping state Energy saving can be achieved by cleaning, and dust on the surface to be cleaned can be scraped off by the motor 52 (rotating brush 51 ), so that the cleaning performance can be further improved.

Next, a third embodiment will be described with reference to FIGS. 10 to 13 . In addition, about the same structure and function as each embodiment mentioned above, the same code|symbol is attached|subjected, and the description is abbreviate|omitted.

In the structure of the third embodiment, in the structure of the above-mentioned first embodiment, the ground contact detection means 55 for detecting the ground contact state of the ground brush 23 is disposed on the ground brush 23 .

As shown in FIG. 11 , a ground fault detection unit 55 is movably attached to an opening 56 formed on the bottom surface of the outer case 48 facing the surface to be cleaned. In addition, the ground contact detection unit 55 includes: a wheel 57 as a grounding portion; and an unillustrated changeover switch for switching on and off according to grounding/non-grounding of the wheel 57 . The wheel 57 is rotatably supported by a support member 59 , and the support member 59 is rotatably supported by a support member 48 . In addition, when the ground brush 23 is brought into contact (grounded) with the surface to be cleaned, the wheel 57 is in contact with the surface to be cleaned, and the wheel 57 rotates together with the support member 59 to be accommodated in the opening 56, and the rotated support member 59 Make the changeover switch be connected, detect the grounding of ground brush 23, make ground brush 23 leave the surface to be cleaned (be as non-ground state), at this moment, support member 59 and wheel 57 protrude from opening 56, support member 59 leaves switching switch, the switch is turned off, thereby detecting the non-grounding of the ground brush 23.

In addition, as shown in FIG. 10 , the ground detection unit 55 is electrically connected to the control unit 37 , and the control unit 37 can identify whether the ground brush 23 is grounded or not grounded by turning on and off the switch of the ground detection unit 55 . In addition, the ground fault detection unit 55 and the control unit 37 are electrically connected by unillustrated wiring, and the wiring passes through the inside of the air duct forming body 13 . Therefore, for example, when the ground brush 23 is detached from the extension pipe 22, or after the extension pipe 22 and the ground brush 23 are detached from the operation part 27 at hand, other suction mouth bodies, for example, the slender suction nozzle (つるハ) etc. are connected to the hand operation portion 27, by cutting off the electrical connection between the ground detection unit 55 and the control unit 37, the control unit 37 determines that the ground brush 23 is not grounded. That is, the grounding detection unit 55 has the function of a connection detection unit for indirectly judging whether to use the ground brush 23 or remove the ground brush 23 to use another suction port body by detecting the grounding/non-grounding of the ground brush 23 . Therefore, below, the grounding/non-grounding detected by the control unit 37 by the grounding detection unit 55 also includes the connection/non-connection of the ground brush 23 .

Next, the operation of the third embodiment described above will be described with reference also to the matrix shown in FIG. 12 and the flowchart shown in FIG. 13 .

First, in step 3, when the control unit 37 determines that the hand operation portion 27 is not in motion (the hand operation portion 27 is stationary), the control unit 37 uses the ground contact detection unit 55 to determine whether the floor brush 23 is grounded (step 21).

In addition, in this step 21, when it is judged that the ground brush 23 is not grounded, the control unit 37 assumes, for example, that the amount of dust on the surface to be cleaned is small, and the user removes the ground brush 23 (and the extension pipe 22 ) and then connects it, such as a long and thin vacuum cleaner. Other suction ports such as mouths, and the user does not hold the operation part 27 at hand, and does not perform cleaning as usual, for example, in the state of driving the electric vacuum cleaner 11 (electric blower 18), place the air duct to form The sweeping state of body 13 etc., control unit 37 sets the phase angle of the input of electric blower 18 that is set by bidirectional thyristor Tr1 as the first value with above-mentioned electric blower, makes electric blower 18 input (power 1) Next action (step 22).

In addition, in step 21, when it is judged that the brush 23 is grounded, the control unit 37 assumes that, for example, the amount of dust on the surface to be cleaned is relatively small, but for example, the ground brush 23 is brought into contact with the surface to be cleaned and the dust is locally concentrated near a wall or the like. In the sweeping state, etc., the control unit 37 sets the phase angle of the input of the electric blower 18 set by the triac Tr1 as the second value for the above-mentioned electric blower, so that the electric blower 18 is under the input (power 2) of the above-mentioned second electric blower. Action (step 23).

In addition, in step 3, when the control unit 37 judges that the operation part 27 at hand is in motion (the operation part 27 at hand is not stationary), the same as step 21, the control unit 37 utilizes the ground contact detection unit 55 to determine whether the ground brush 23 is grounded (step twenty four).

In addition, in this step 24, when it is judged that the ground brush 23 is not grounded, the control unit 37 assumes that for example, the amount of dust on the surface to be cleaned is small, but for example, after the ground brush 23 (and the extension pipe 22) is removed, the slender suction nozzle and the like are connected. Inhale the mouth body to carry out the sweeping state etc. of sweeping, control unit 37 sets the phase angle of the input of electric blower 18 set by bidirectional thyristor Tr1 as the second value with above-mentioned electric blower, makes electric blower 18 in above-mentioned second electric blower. Blower input (power 2) is activated (step 25).

In addition, in step 24, when it is judged that the ground brush 23 is grounded, the control unit 37 assumes, for example, that although the amount of dust on the surface to be cleaned is relatively small, the ground brush 23 is contacted to clean the surface to be cleaned, etc., and the control unit 37 The phase angle of the input of the electric blower 18 set by the triac Tr1 is set to the third value for the electric blower, and the electric blower 18 is operated under the above-mentioned third electric blower input (power 3) (step 26).

On the other hand, in step 6, when the control unit 37 determines that the hand operation unit 27 is not in motion (the hand operation unit 27 is stationary), the control unit 37 uses the ground contact detection unit 55 to determine that the brush 23 is grounded in the same way as steps 21 and 24 Is it grounded (step 27).

And, in this step 27, when it is judged that the ground brush 23 is not grounded, the control unit 37, for example, connects other suction ports such as elongated suction nozzles after the ground brush 23 is removed in a narrow place such as a gap between the furniture and the wall. body, and in order to use the suction air volume to inhale the accumulated dust, make the suction port body stationary for a predetermined time to sweep the cleaning state, etc., the control unit 37 will be set by the triac Tr1 The input of the electric blower 18 The phase angle is set to the third value for the electric blower, and the electric blower 18 is operated with the input of the third electric blower (power 3) (step 28).

In addition, in step 27, when it is judged that the ground brush 23 is grounded, the control unit 37 assumes, for example, a sweeping state in which the corner of the surface to be cleaned or the wall is cleaned with the ground brush 23. The set input phase angle of the electric blower 18 is set to the fourth value for the electric blower, and the electric blower 18 is operated with the fourth electric blower input (power 4) (step 29).

And, in step 6, when the control unit 37 determines that the hand operation unit 27 is in motion (the hand operation unit 27 is not stationary), the control unit 37 uses the ground contact detection unit 55 to determine that the brush 23 is on the ground as in steps 21, 24 and 27. Is it grounded (step 30).

And, in this step 30, when it is judged that the ground brush 23 is not grounded, the control unit 37 assumes that for example, the surface to be cleaned in a wide range such as the shelf with more dust, for example, pulls down the ground brush 23 (and the extension pipe 22) To use other suction ports such as furniture brushes to clean the cleaning state, etc., the control unit 37 sets the input phase angle of the electric blower 18 set by the triac Trl as the fourth value for the above-mentioned electric blower, so that the electric blower 18 operates (step 31) at the aforementioned fourth electric blower input (power 4).

In addition, in step 30, when it is determined that the ground brush 23 is grounded, the control unit 37 assumes that, for example, the surface to be cleaned has a large amount of dust and the user grounds the ground brush 23 to perform sweeping by moving the ground brush 23 back and forth as usual. The control unit 37 sets the input phase angle of the electric blower 18 set by the triac Tr1 to the maximum value greater than the fourth value for the electric blower, that is, the specified fifth value for the electric blower, and The electric blower 18 is operated at a predetermined fifth electric blower input (power 5), which is a maximum input greater than the fourth electric blower input (step 32).

As mentioned above, the ground contact state (connection state) of the suction body such as ground brush 23 or slender suction nozzle is detected by the contact detection unit 55, and the control unit 37 is based on the amount of dust detected by the optical sensor 33 and the amount detected by the action detection unit 45. The action of the operation part 27 at hand and the grounded state (connected state) of the suction inlet body detected by the grounded detection unit 55 assume a sweeping state, and control the drive of the electric blower 18 corresponding to the sweeping state of the imagination, thereby, it is possible to According to the information from the optical sensor 33, the information from the motion detection unit 45, and the information from the ground detection unit 55, the user’s sweeping state can be assumed with higher accuracy, and the sweeping state can be performed with appropriate power, Further energy saving can be realized. That is, for example, when the ground brush 23 is grounded (when in a connected state), the input (power (suction)) of the electric blower 18 is increased more than when the ground brush 23 is not grounded (when not connected), so the control unit can 37 Identify, for example, when using the ground brush 23 that requires power to sweep the surface to be swept such as the ground, and compared with the ground brush 23, the opening area is narrow and the power of the electric blower 18 can be smaller, and a slender suction nozzle is used, etc. The input of the electric blower 18 can be set appropriately at the time of cleaning of the suction port body.

In addition, in the above-mentioned first embodiment and third embodiment, the rotating brush 51 and the electric motor 52 of the above-mentioned second embodiment are provided on the ground brush 23, but it is assumed that the motor 52 (rotating brush 51) is connected with the electric blower. 18 are separately and independently controlled.

Next, a fourth embodiment will be described with reference to FIGS. 14 to 16 . In addition, about the same structure and function as each embodiment mentioned above, the same code|symbol is attached|subjected, and the description is abbreviate|omitted.

As shown in FIG. 14 , the configuration of the fourth embodiment includes the ground contact detection unit 55 of the third embodiment described above in addition to the configuration of the second embodiment described above.

In addition, if the matrix shown in FIG. 15 and the flow chart shown in FIG. 16 are used to describe, then in step 21, when it is judged that the ground brush 23 is not grounded, for example, it is assumed that the amount of dust on the surface to be cleaned is less, and When the user places the air duct forming body 13 in a state where the ground brush 23 is suspended relative to the surface to be cleaned, etc., the control unit 37 sets the phase angle of the input of the electric blower 18 set by the triac Tr1 to The above-mentioned electric blower uses the first value to make the electric blower 18 operate under the above-mentioned first electric blower input (power 1), and set the phase angle of the input of the motor 52 set by the triac Tr2 to 0 to make The motor 52, that is, the rotating brush 51 is stopped (step 41).

In addition, in step 21, when it is judged that the ground brush 23 is grounded, the control unit 37 assumes, for example, that the ground brush 23 is in contact with the surface to be cleaned, pressed to a wall where there is less dust, etc., and is still in a sweeping state, etc., and the control unit 37 The phase angle of the input of the electric blower 18 set by the bidirectional thyristor Tr1 is set as the second value for the above-mentioned electric blower, and the electric blower 18 is operated under the input (power 2) of the above-mentioned second electric blower. The phase angle of the input of the motor 52 set by the thyristor Tr2 is set to the second value for the motor, and the motor 52 is operated under the input of the second motor, thereby rotating the rotating brush 51 at the second rotation speed (rotation speed 2). (step 42).

Similarly, in step 24, when it is judged that the ground brush 23 is not grounded, the control unit 37 assumes, for example, that although the amount of dust on the surface to be cleaned is less, for example, the ground brush 23 (and the extension pipe 22) is removed and the elongated suction nozzle is used. The sweeping state etc. that other suction port bodies are cleaned, the control unit 37 sets the phase angle of the input of the electric blower 18 set by the bidirectional thyristor Tr1 as the second value for the above-mentioned electric blower, so that the electric blower 18 is set in the above-mentioned second electric blower. The blower input (power 2) is operated, and the phase angle of the input to the motor 52 set by the triac Tr2 is set to 0 to stop the motor 52, that is, the rotating brush 51 (step 43).

In addition, in step 24, when it is judged that the ground brush 23 is grounded, the control unit 37 assumes, for example, that although the amount of dust on the surface to be cleaned is small, the cleaning state in which the ground brush 23 is contacted to clean the surface to be cleaned, etc., the control unit 37 The phase angle of the input of the electric blower 18 set by the bidirectional thyristor Tr1 is set as the third value for the above-mentioned electric blower, and the electric blower 18 is operated under the input (power 3) of the above-mentioned third electric blower, and the two-way adjustable The phase angle of the input of the motor 52 set by the thyristor Tr2 is set to the third value for the motor, and the motor 52 is operated under the input of the third motor, thereby making the rotating brush 51 rotate at the third rotation speed (rotational speed 3) Rotate (step 44).

And, in step 27, when judging that the ground brush 23 is not grounded, the control unit 37, for example, assumes that for narrow places such as the gap between the furniture and the wall, for example, in order to remove the ground brush 23 to connect other suction nozzles such as elongated nozzles, mouth body, and use the suction air volume to inhale the accumulated dust, make the suction mouth body static for a specified time to sweep the sweeping state, etc., the control unit 37 will be set by the bidirectional thyristor Trl The phase angle of the input of the electric blower 18 As the third value for the above-mentioned electric blower, the electric blower 18 is operated under the above-mentioned third electric blower input (power 3), and the phase angle of the input of the motor 52 set by the triac Tr2 is set to 0, The motor 52, that is, the rotating brush 51 is stopped (step 45).

In addition, in step 27, when it is judged that the ground brush 23 is grounded, the control unit 37, for example, imagines the sweeping state of using the ground brush 23 to clean the corners of the surface to be cleaned or near the wall, etc., and the control unit 37 will be controlled by the triac. The phase angle of the input of the electric blower 18 set by Tr1 is set to the fourth value for the electric blower, so that the electric blower 18 operates under the input of the fourth electric blower (power 4), and the triac Tr2 is set to The phase angle of the input of the fixed motor 52 is set as the fourth value for the above-mentioned motor, and the motor 52 is operated under the input of the above-mentioned fourth motor, thereby, the rotating brush 51 is rotated at the above-mentioned fourth rotation speed (rotational speed 4) (step 46 ).

In addition, in step 30, when it is determined that the ground brush 23 is not grounded, the control unit 37 assumes, for example, that the ground brush 23 (and the extension pipe 22) is removed for use on a wide range of surfaces to be cleaned, such as a shelf with a large amount of dust. Furniture brushes and other suction ports to clean the cleaning state, etc., the control unit 37 sets the input phase angle of the electric blower 18 set by the triac Tr1 as the fourth value for the above-mentioned electric blower, so that the electric blower 18 is set at the fourth value. The fourth electric blower is operated under input (power 4), and the phase angle of the input of the motor 52 set by the triac Tr2 is set to 0, and the motor 52, that is, the rotating brush 51, is stopped (step 47).

In addition, in step 30, when it is determined that the ground brush 23 is grounded, the control unit 37 assumes, for example, that the surface to be cleaned has a large amount of dust and that the user grounds the ground brush 23 to perform sweeping by moving the ground brush 23 back and forth as usual. The sweeping state etc., the control unit 37 sets the phase angle of the input of the electric blower 18 set by the bidirectional thyristor Tr1 as the fifth value for the above-mentioned electric blower, so that the electric blower 18 is input at the above-mentioned fifth electric blower (power 5 ), and the phase angle of the input of the motor 52 set by the triac Tr2 is set to a maximum value greater than the fourth value for the motor, that is, the specified fifth value for the motor, by making the motor 52 at a value higher than the fourth value for the motor The maximum input of the four motors is greater than the predetermined fifth motor input, and the rotating brush 51 is rotated at the predetermined fifth rotation speed (speed 5) which is the maximum rotation speed higher than the fourth rotation speed (step 48).

As mentioned above, the grounding state (connection state) of the suction body such as ground brush 23 or slender suction nozzle is detected by the grounding detection unit 55, the amount of dust detected by the control unit 37 and the optical sensor 33, and the amount of dust detected by the motion detection unit 45 are detected. The operation of the hand operation part 27 and the grounding state (connection state) of the suction port body detected by the grounding detection unit 55 correspond to the driving of the electric blower 18 and the motor 52 (rotating brush 51), thereby enabling high-precision Assuming the cleaning state of the user, it is possible to clean with power more suitable for the cleaning state, and further energy saving can be achieved. That is, for example, when the ground brush 23 is grounded (when connected), the input (power) of the electric blower 18 can be increased compared to when the ground brush 23 is not grounded (when not connected), so the control unit 37 can recognize, for example, the required power When using the ground brush 23 to sweep the surface to be cleaned such as the ground, and when compared with the ground brush 23, the power required can be smaller, and when the suction body such as a slender suction nozzle is used for cleaning, the electric blower 18 can be set more appropriately. input of. Furthermore, since the motor 52 (rotating brush 51 ) is stopped when the ground contact detecting means 55 detects that the ground brush 23 is not grounded (disconnected), unnecessary power consumption can be suppressed, and further energy saving can be achieved.

Next, a fifth embodiment will be described with reference to FIGS. 17 and 18 . In addition, about the same structure and function as each embodiment mentioned above, the same code|symbol is attached|subjected, and the description is abbreviate|omitted.

This fifth embodiment has basically the same structure as the above-mentioned fourth embodiment, however, the control by the control unit 37 is different from the above-mentioned fourth embodiment.

Specifically, in this fifth embodiment, each control of step 51 to step 54 below is performed instead of each control of step 45 to step 48 in the fourth embodiment described above.

That is, if the matrix shown in FIG. 17 and the flow chart shown in FIG. 18 are used for description, then in step 27, when it is judged that the ground brush 23 is not grounded, the control unit 37 assumes, for example, a gap between the furniture and the wall, etc. For example, in order to remove the ground brush 23 and connect other suction bodies such as slender suction nozzles, and use the suction air volume to inhale the accumulated dust, the suction body is still for a specified time to clean the sweeping state, etc., control The unit 37 sets the phase angle of the input of the electric blower 18 set by the triac Tr1 to the fifth value for the above-mentioned electric blower, makes the electric blower 18 operate under the above-mentioned fifth electric blower input (power 4), and, The phase angle of the input to the motor 52 set by the triac Tr2 is set to 0, and the motor 52, that is, the rotating brush 51 is stopped (step 51).

In addition, in step 27, when it is determined that the ground brush 23 is grounded, the control unit 37 assumes, for example, that the ground brush 23 is grounded for the corner of the surface to be cleaned with a large amount of dust, or a position near a wall, etc. state, etc., the control unit 37 sets the phase angle of the input of the electric blower 18 set by the bidirectional thyristor Tr1 to the fifth value for the above-mentioned electric blower, so that the electric blower 18 is under the input (power 5) of the above-mentioned fifth electric blower. and the phase angle of the input of the motor 52 set by the triac Tr2 is set to the fifth value for the motor, and the motor 52 is operated under the input of the fifth motor, whereby the rotating brush 51 is The above-mentioned fifth rotation speed (rotation speed 5) is rotated (step 52).

And, in step 30, when it is judged that the ground brush 23 is not grounded, the control unit 37 assumes, for example, that the ground brush 23 (and the extension pipe 22) is removed for use on a wide range of surfaces to be cleaned, such as a shelf with a large amount of dust. In the cleaning state where other suction ports such as furniture brushes etc. are cleaning, the control unit 37 sets the input phase angle of the electric blower 18 set by the bidirectional thyristor Tr1 to the third value for the above-mentioned electric blower, so that the electric blower 18 The above-mentioned third electric blower input (power 3) operates, and the phase angle of the input of the motor 52 set by the triac Tr2 is set to 0, and the motor 52, that is, the rotating brush 51, is stopped (step 53).

In addition, in step 30, when it is determined that the ground brush 23 is grounded, the control unit 37 assumes, for example, that the surface to be cleaned has a large amount of dust and that the user grounds the ground brush 23 to perform sweeping by moving the ground brush 23 back and forth as usual. The sweeping state etc., control unit 37 sets the phase angle of the input of the electric blower 18 that is set by bidirectional thyristor Tr1 as the fourth value of above-mentioned electric blower, makes electric blower 18 input (power 4 ), and the phase angle of the input of the motor 52 set by the triac Tr2 is set to the fourth value for the motor, and the motor 52 is operated under the input of the fourth motor, whereby the rotating brush 51 rotates at the above-mentioned fourth rotation speed (rotation speed 4) (step 54).

As described above, when the amount of dust detected by the optical sensor 33 is more than a predetermined amount and the motion detection unit 45 detects that the hand operation unit 27 is not in motion, the control unit 37 assumes, for example, that the user points at a corner of the surface to be cleaned or The position near the wall, etc., use the suction port body such as the floor brush 23 or the slender suction nozzle to concentrate on the cleaning state, the control unit 37 at least relatively increases the input of the electric blower 18, specifically, according to the electric vacuum cleaner 11 The type and the like are driven by a preset maximum input, thereby efficiently sweeping dust according to the user's sweeping state, and improving usability.

In addition, when the amount of dust detected by the optical sensor 33 is more than a predetermined amount, and the motion detection unit 45 detects that the hand operation unit 27 is not in motion, and the ground contact detection unit 55 detects that the floor brush 23 is grounded, for example, The control unit 37 assumes that the user makes the ground brush 23 contact the surface to be cleaned for the corner of the surface to be cleaned or the position near the wall, etc., and the sweeping state is concentrated and cleaned. The control unit 37 and the electric blower 18 also relatively increase the motor 52. The input of the electric vacuum cleaner 11, specifically, can be driven by the maximum input preset according to the type of the electric vacuum cleaner 11, thereby, dust can be swept more efficiently corresponding to the cleaning state of the user, and the usability can be improved. .

That is, in the case where only the motion detection unit 45 is provided, the control unit 37 may reduce the input when it is detected that the hand operation unit 27 is not in motion. Both of the motion detection unit 45 can be used as described above, and the user can use the suction port bodies such as the ground brush 23 or the elongated suction nozzle to concentrate on cleaning the corners of the surface to be cleaned or the positions near the wall. able to cope. Therefore, electric blower 18 and/or motor 52 (rotating brush 51 ) can be driven with power more suitable for the cleaning state, and cleaning can be reliably performed. In other words, by including both the optical sensor 33 and the motion detection unit 45 , it is possible to detect the cleaning state in mutual assistance, and efficient cleaning can be performed.

Next, a sixth embodiment will be described with reference to FIGS. 19 and 20 . In addition, about the same structure and function as each embodiment mentioned above, the same code|symbol is attached|subjected, and the description is abbreviate|omitted.

This sixth embodiment basically has the same structure as the above-mentioned fourth embodiment, and the control by the control unit 37 is different from the above-mentioned fourth embodiment.

Specifically, in this sixth embodiment, instead of the respective controls of steps 43 to 48 in the above-described fourth embodiment, the following controls of steps 61 to 66 are performed.

That is, if describe with reference to the matrix shown in Figure 19 and the flow chart shown in Figure 20, then in step 24, when it is judged that the ground brush 23 is not grounded, for example, it is assumed Firmly sticking dust, such as when removing the ground brush 23 and connecting other suction bodies such as slender suction nozzles to sweep away, etc., the amount of dust is relatively small but requires stronger power to sweep the state, etc., the control unit 37 will be controlled by two-way. The phase angle of the input of the electric blower 18 set by the thyristor Tr1 is set to the fifth value for the above-mentioned electric blower, so that the electric blower 18 operates under the input (power 4) of the above-mentioned fifth electric blower, and the bidirectional thyristor The phase angle of the input to the motor 52 set in Tr2 is set to 0, and the motor 52, that is, the rotating brush 51 is stopped (step 61).

In addition, in step 24, when it is determined that the floor brush 23 is grounded, the control unit 37 assumes, for example, that the floor brush 23 is moved little by little to clean dust such as yarn dust entangled on a surface to be cleaned such as a carpet. The sweeping state etc., the control unit 37 sets the phase angle of the input of the electric blower 18 set by the bidirectional thyristor Tr1 as the fifth value for the above-mentioned electric blower, so that the electric blower 18 is input at the above-mentioned fifth electric blower (power 5 ), and the phase angle of the input of the motor 52 set by the triac Tr2 is set to the fifth value for the motor, and the motor 52 is operated under the input of the fifth motor, thereby making the rotating brush 51 Rotate at the above-mentioned fifth rotational speed (rotational speed 5) (step 62).

And, in step 27, when it is judged that the ground brush 23 is not grounded, the control unit 37, for example, assumes that for narrow places such as the gap between the furniture and the wall, for example, in order to remove the ground brush 23 to connect other suction nozzles such as elongated suction nozzles, etc. mouth body, and use the suction air volume to inhale the accumulated dust, make the suction mouth body static for a predetermined time to sweep the sweeping state, etc., the control unit 37 sets the phase angle of the input of the electric blower 18 set by the bidirectional thyristor Trl To be the second value for the above-mentioned electric blower, the electric blower 18 is operated under the input (power 2) of the above-mentioned second electric blower, and the phase angle of the input of the motor 52 set by the triac Tr2 is set to 0, so that The motor 52, that is, the rotating brush 51 is stopped (step 63).

And, in step 27, when it is judged that the ground brush 23 is grounded, the control unit 37, for example, assumes that the corner of the surface to be cleaned with the ground brush 23 or the sweeping state etc. that are cleaned by the wall, etc., the control unit 37 will be controlled by the bidirectional thyristor. The phase angle of the input of the electric blower 18 set by Tr1 is set to the third value for the above-mentioned electric blower, so that the electric blower 18 operates under the input (power 3) of the above-mentioned third electric blower, and the triac Tr2 is set to The phase angle of the input of the fixed motor 52 is set to the third value for the motor, and the motor 52 is operated under the input of the third motor, thereby rotating the rotating brush 51 at the third rotation speed (speed 3) (step 64 ).

In addition, in step 30, when it is judged that the ground brush 23 is not grounded, the control unit 37, for example, assumes that the ground brush 23 (and the extension pipe 22) is removed for a wide range of surfaces to be cleaned, such as a shelf with a large amount of dust. In the cleaning state where other suction ports such as furniture brushes are cleaning, etc., the control unit 37 sets the phase angle of the input of the electric blower 18 set by the triac Tr1 to the third value for the electric blower, so that the electric blower 18 operates under the above-mentioned third electric blower input (power 3), and sets the phase angle of the input of the motor 52 set by the triac Tr2 to 0, and stops the motor 52, that is, the rotating brush 51 (step 65).

And, in step 30, when it is judged that the ground brush 23 is grounded, the control unit 37 assumes, for example, that there is a lot of dust on the surface to be cleaned, and that the user grounds the ground brush 23 and moves the ground brush 23 back and forth as usual to perform cleaning. The sweeping state etc., control unit 37 sets the phase angle of the input of the electric blower 18 that is set by bidirectional thyristor Tr1 as the fourth value of above-mentioned electric blower, makes electric blower 18 input (power 4 ), and the phase angle of the input of the motor 52 set by the triac Tr2 is set to the fourth value for the motor, and the motor 52 is operated under the input of the fourth motor, whereby the rotating brush 51 rotates at the above-mentioned fourth rotation speed (rotation speed 4) (step 66).

As described above, when the amount of dust detected by the optical sensor 33 is less than a predetermined amount and the motion detection unit 45 detects that the hand operation unit 27 is in motion, the control unit 37 is assumed to be, for example, the user’s floor brush 23 or a long and thin vacuum cleaner. The suction body of the mouth etc. sweeps away the dust such as dust such as yarn dust that is wrapped around the surface to be cleaned such as carpet and is difficult to take off, and this control unit 37 makes the input of at least electric blower 18 increase relatively, specifically, according to Depending on the type of electric vacuum cleaner 11, etc., it is driven with a preset maximum input, thereby efficiently sweeping dust according to the user's cleaning state, and improving usability.

In addition, when the amount of dust detected by the optical sensor 33 is less than a predetermined amount and the operation detection unit 45 detects that the hand operation unit 27 is in operation, and the ground contact detection unit 55 detects that the ground brush 23 is grounded, For example, the control unit 37 assumes a sweeping state in which the user uses the floor brush 23 to sweep away dust such as yarn scraps that are entangled on the surface to be cleaned such as a carpet and is difficult to remove, and the control unit 37 relatively increases the input of the electric blower 18 and the motor 52. Specifically, by driving with a predetermined maximum input according to the type of electric vacuum cleaner 11, etc., dust can be swept more efficiently according to the user's cleaning state, and usability can be improved.

That is, in the case where only the optical sensor 33 is provided, for example, when cleaning the surface to be cleaned such as carpets such as entangled yarn dust, etc., at first, it is judged that the amount of dust is more than a predetermined amount by inhaling dust, but when only When yarn dust remains on the surface to be cleaned, it may be misjudged that the amount of dust is less than a predetermined amount, and the control unit 37 may lower the input. However, in the present embodiment, by providing both the optical sensor 33 and the motion detection unit 45, as described above, even if the user uses the floor brush 23 or the suction port body such as the elongated suction nozzle, it is easy to remove the dirt that is caught on the carpet or the like. It can also be used in the sweeping state where dust such as yarn dust that is difficult to remove from the surface to be cleaned is swept away. Therefore, the electric blower 18 and/or the motor 52 (rotating brush 51 ) can be driven with power more suitable for the cleaning state, and reliable cleaning can be performed. In other words, by including both the optical sensor 33 and the motion detection unit 45 , it is possible to detect the cleaning state in mutual assistance, and efficient cleaning can be performed.

In addition, the control of step 51 of the above-mentioned fifth embodiment and the control of step 61 of the sixth embodiment are also applicable to the case of a configuration that does not have the ground contact detection unit 55 or the ground brush 23 , respectively. That is, instead of step 7 of the above-mentioned first embodiment or step 13 of the above-mentioned second embodiment, the control of step 51 of the above-mentioned fifth embodiment can be performed; instead of step 5 of the above-mentioned first embodiment or the above-mentioned second embodiment In Step 12, the control of Step 61 of the sixth embodiment is performed to at least increase the input of the electric blower 18 . In addition, the control of the above-mentioned fifth embodiment and the control of the sixth embodiment may be combined.

In addition, according to at least one embodiment described above, the control unit 37 controls the driving of at least the electric blower 18 according to the amount of dust detected by the optical sensor 33 and the movement of the hand operation part 27 detected by the movement detection unit 45. Thus, based on at least two pieces of information, the information from the optical sensor 33 and the information from the motion detection unit 45, the user's cleaning state can be assumed with high precision, and the cleaning can be performed with the power suitable for the cleaning state, and energy saving can be achieved. .

In addition, in each of the above-mentioned embodiments, the handy operation part 27 is set as a member for holding and operating the air passage forming body 13, but, for example, a so-called upright electric vacuum cleaner in which the ground brush 23 is connected to the lower part of the vacuum cleaner main body 12 In some cases, it may be a member for holding and operating the cleaner main body 12 .

In addition, although each electric blower input and each motor input were demonstrated using the same input in each embodiment, as long as the mutual magnitude|size relationship is maintained, each embodiment may have a different input.

In addition, although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope or spirit of the invention, and are included in the invention described in the claims and its equivalents.

Claims (6)

1. An electric vacuum cleaner, characterized in that it possesses: The main body of the vacuum cleaner accommodates the electric blower; an air duct connected to the suction side of the electric blower; A dust amount detection unit detects the amount of dust passing through the air duct; Handy operation part, which is controlled and operated; An action detection unit detects whether the operating part at hand is still; and The control unit controls the drive of the electric blower based on the dust amount detected by the dust amount detection unit and the detection of whether the hand operation unit is stationary by the motion detection unit. 2. The electric vacuum cleaner according to claim 1, characterized in that, A suction port body capable of constituting a part of the air passage is provided, and the suction port body is equipped with a motor and a rotating cleaning body driven by the motor; The control unit controls the driving of the electric blower according to the amount of dust detected by the dust amount detection unit and the detection of whether the hand operation part is still by the motion detection unit, and controls the drive of the electric blower according to the amount of dust detected by the dust amount detection unit and the detection by the motion detection unit. The detection unit detects whether the hand-operated part is stationary, and controls the driving of the motor. 3. The electric vacuum cleaner according to claim 1, characterized in that, have: a suction body, capable of forming part of the air duct; and a ground detection unit, which detects the ground state of the suction port body; The control unit controls the driving of the electric blower according to the amount of dust detected by the dust amount detection unit, the detection of whether the hand operation unit is stationary by the motion detection unit, and the grounded state of the suction inlet body detected by the ground contact detection unit. 4. The electric vacuum cleaner according to claim 2, characterized in that, Equipped with a ground detection unit for detecting the ground state of the suction port body; The control unit controls the electric blower and the motor according to the amount of dust detected by the dust amount detection unit, the detection of whether the hand operation part is stationary by the motion detection unit, and the grounded state of the suction inlet body detected by the ground detection unit. drive. 5. The electric vacuum cleaner according to claim 1, characterized in that, When the dust amount detected by the dust amount detection means is equal to or greater than a predetermined amount, and the movement detection means detects that the hand operation part is stationary, the control means relatively increases the input of the electric blower. 6. The electric vacuum cleaner according to claim 1, characterized in that, When the dust amount detected by the dust amount detection means is below a predetermined amount and the motion detection means detects that the hand operation part is not stationary, the control means relatively increases the input of the electric blower.