CN203042139U - Vacuum cleaner suction control - Google Patents

Abstract

A suction force control apparatus of a vacuum cleaner, comprising: a motor for driving a fan blade of the cleaner main machine to generate suction; a throat tube with a holding part for sucking the garbage or dust into the main machine of the dust collector through the throat tube by using the suction force generated by the fan blade; a control unit, which is arranged on the holding part of the throat pipe and can generate rotating speed control signals with different rotating speeds; and a rotation speed control circuit, electrically connected to the control unit and the motor, for controlling the rotation speed of the motor according to the rotation speed control signal, thereby adjusting the suction force of the cleaner main unit; in an embodiment of the present invention, the control unit is a wireless controller, and in another embodiment, the control unit is a wired controller, which can conveniently adjust the suction force of the vacuum cleaner while operating the vacuum pipe to suck dust, and has the effects of convenient operation and adjustable suction force of the vacuum cleaner.

Description

Vacuum cleaner suction control

technical field

The utility model relates to an improved structure of a vacuum cleaner, in particular to a vacuum cleaner suction control device which is convenient to operate and can adjust the suction of the vacuum cleaner. the

Background technique

Vacuum cleaner is a common cleaning tool that can assist personnel to efficiently clean up and collect fine garbage or dust. Compared with traditional brooms used for similar tasks, vacuum cleaners are obviously more convenient, faster and more effective. the

The main movement principle of the vacuum cleaner is to use a high-speed motor (electric motor) to drive the fan blades to rotate, to discharge the air inside the vacuum cleaner at high speed, to form a negative pressure inside the vacuum cleaner, and to form a strong suction force at the suction port of the vacuum cleaner, and then use the suction The air flow will suck the fine garbage or dust into the dust collection chamber (or dust collection bag) inside the vacuum cleaner, and the fine garbage or dust will be retained in the dust collection chamber (or dust collection bag) by the design of the internal structure, and filtered Remove the fine garbage or dust and then discharge the clean air; generally speaking, the greater the negative pressure inside the vacuum cleaner, the greater the air volume, the stronger the dust collection ability. the

There are many types of vacuum cleaners, which can be divided into the following categories according to the differences in structure and use: vertical vacuum cleaners, horizontal vacuum cleaners, portable vacuum cleaners, and a back-mounted vacuum cleaner (such as the approved Taiwan New Patent No. M411910 No. "Portable Vacuum Cleaning Device"). Generally speaking, vacuum cleaners have many accessories to assist users in cleaning dust conveniently, such as suction heads with bristles, long-tube suction nozzles that can clean small spaces; Type vacuum cleaners (such as small vacuum cleaners used in cars), most of the vacuum cleaners have a flexible hose that can be bent arbitrarily, and a hard hose connected to the soft hose, the soft hose can be extended The distance between the main body of the vacuum cleaner and the suction head prevents the user from moving or holding the heavy main body of the vacuum cleaner. On the other hand, due to the bendability of the soft throat, it is more conducive to the user's control. And the direction and height position of the operating suction head. the

Manufacturers of vacuum cleaners aim to produce machines with better dust collection effects. Therefore, most vacuum cleaners can generate strong suction to achieve the goal of strong dust collection capabilities; in addition, safety is also a must for vacuum cleaners. Therefore, some vacuum cleaners are equipped with current fuses and "thermal protectors", so even if the motor overheats, the power supply to the motor can be temporarily cut off to prevent danger or damage to the vacuum cleaner. the

It is known that a small number of vacuum cleaners have the function of adjusting the suction power. There are two ways to adjust the suction power: automatic induction and manual adjustment. The former has a more complicated structure and higher cost, and is generally only seen in high-priced vacuum cleaners; manual adjustment vacuum cleaners , usually the suction adjustment switch/button is installed on the main body of the vacuum cleaner, and the user can switch between different suction powers according to needs, but generally the vacuum cleaners that need to adjust the suction power are vertical vacuum cleaners or horizontal vacuum cleaners. , are generally placed on the ground for use, so when switching between different suction powers, the user needs to bend down or lower his body to operate the suction adjustment switch, which is obviously very inconvenient to use. the

Utility model content

In view of the problems of the prior art, the utility model proposes a suction control device for a vacuum cleaner which is easy to operate. the

The suction control device of the vacuum cleaner of the utility model is used to control the suction of the main engine of the vacuum cleaner. The structure of one embodiment includes:

A motor, used to drive a fan blade of the main body of the vacuum cleaner to generate suction;

A throat with a gripping portion for sucking garbage or dust into the main body of the vacuum cleaner through the throat by using the suction generated by the fan blade;

A control unit, installed on the holding part of the throat, can generate speed control signals of different speeds; and

A rotation speed control circuit is electrically connected to the control unit and the motor, controls the rotation speed of the motor according to the rotation speed control signal, and then adjusts the suction force of the main body of the vacuum cleaner. the

In an embodiment of the present invention, the control unit is a wired controller that can generate speed control signals of different speeds. The wired controller is installed on a grip portion of the throat. The control unit has a A signal line arranged along the throat is used to transmit the rotation speed control signal to the motor through the signal line to control the rotation speed of the motor, and then adjust the suction force of the main body of the vacuum cleaner. the

In an embodiment of the present utility model, the control unit is a wireless controller, comprising: a wireless signal transmitting unit installed on the holding portion of the throat to send a speed control signal; a wireless The signal receiving unit is electrically connected with the motor to receive the speed control signal sent by the wireless signal transmitting unit, and sends the speed control signal to the speed control circuit, and controls the speed of the motor according to the speed control signal, and then Adjust the suction power of the main unit of the vacuum cleaner. the

In another embodiment of the present utility model, wherein the control unit is a wireless controller, including: a wireless signal transmitting unit installed on a wearing part, the wearing part can be worn on the user's body for to send a speed control signal; a wireless signal receiving unit is electrically connected to the motor to receive the speed control signal sent by the wireless signal transmitting unit, and send the speed control signal to the speed control circuit, according to the speed The control signal controls the rotation speed of the motor, and then adjusts the suction force of the main body of the vacuum cleaner. the

The suction control device of the vacuum cleaner of the utility model has a control unit installed in the grip part. When switching between different suction forces, the user does not need to bend over or lower his body to operate the suction adjustment switch, which obviously has excellent convenience. the

Details about other functions and embodiments of the present invention will be described as follows with reference to the accompanying drawings. the

Description of drawings

FIG. 1 is an embodiment of the present invention, showing a functional block diagram of a suction control device of a vacuum cleaner. the

Fig. 2 is an embodiment of the present invention, showing the structure of the suction control device of the vacuum cleaner applied to the horizontal vacuum cleaner. the

FIG. 3 is another embodiment of the present invention, showing a functional block diagram of the suction control device of the vacuum cleaner. the

Fig. 4 is another embodiment of the present invention, showing the construction of the vacuum cleaner suction control device applied to a back-mounted vacuum cleaner. the

Fig. 5 is another embodiment of the present invention, showing the structure of the vacuum cleaner suction control device applied to a back-mounted vacuum cleaner. the

Description of main component symbols

10 motor 35 wireless signal receiving unit

20 Throat 311 Conductive Electrode

21 grip part 312 conductive electrode

22 Soft throat 40 Speed control circuit

221 Hook mechanism 50 Vacuum cleaner host

23 suction head 51 suction port

30 Control unit 511 Access electrode

31 Signal line 512 Access electrode

32 Control push rod 60 Wearing part

33 Knob 70 Backpack Vacuum Cleaner

34 Wireless signal transmitting unit

Detailed ways

An embodiment of the structure of the suction control device of the utility model vacuum cleaner is shown in Figure 1 and Figure 2, including:

A motor 10 is used to drive a fan blade of the main body of the vacuum cleaner 50 to generate suction (the fan blade is located inside the main body of the vacuum cleaner 50 so it is not shown in the figure);

A throat 20 with a gripping portion 21, using the suction generated by the fan blades to suck the garbage or dust into the main unit 50 of the vacuum cleaner through the throat 20;

A control unit 30, installed on the grip portion 21 of the throat 20, can generate speed control signals of different speeds; and

A rotation speed control circuit 40 is electrically connected to the control unit 30 and the motor 10 , controls the rotation speed of the motor 10 according to the rotation speed control signal, and then adjusts the suction force of the vacuum cleaner main body 50 . the

In Fig. 2, a horizontal vacuum cleaner is used as an application example, wherein the throat 20 includes: a gripping portion 21, a flexible throat 22, and a suction head 23, the gripping portion 21 is arranged on the flexible throat 22, the gripping part 21 is usually a hard hose, which can be held by the user for vacuuming work. The end of the soft hose 22 has a hook mechanism 221, which can be connected to A suction port 51 of the main body of the vacuum cleaner 50, or separated from the suction port 51, wherein the suction head 23 can be connected to or separated from the grip portion 21. the

In an embodiment of the present utility model, wherein the control unit 30 is a wired controller, which can generate speed control signals of different speeds, the wired controller is installed on the handle 21 of the throat 20, and the The unit 30 has a signal line 31 disposed along the throat 20. The end of the signal line 31 is provided with two conductive electrodes 311 and 312, and the corresponding position of the suction port 51 of the vacuum cleaner main body 50 is also provided with an access electrode 511 and 512, the access electrodes 511 and 512 are electrically connected to the speed control circuit 40 respectively, when the end of the flexible throat 22 is connected to the suction port 51 of the vacuum cleaner main body 50 through the hook mechanism 221, the conductive electrodes 311 and 312 and the electrical connections of the access electrodes 511 and 512 transmit the speed control signal to the motor 10 to control the speed of the motor 10 and then adjust the suction force of the vacuum cleaner main body 50 . the

The control interface of the control unit 30 can adopt different structures, one of which is provided with a control push rod 32 (as shown in FIG. 4 ) for user operation, and in another embodiment is provided with a knob 33 ( As shown in FIG. 2 ) can be operated by the user; select a suitable control interface according to the circuit design of the speed control circuit 40 . the

The rotational speed control circuit 40 is designed with a corresponding circuit structure according to the type and driving mode of the motor 10. Taking an AC motor as an example, the control mode commonly used is voltage control, and pulse width modulation (Pulse Width Modulation, PWM) is more common, such as: variable voltage constant frequency control (VVCF Control), constant voltage variable frequency control (CVVF Control) and variable voltage variable frequency control (VVVF Control), anyone who is familiar with this technical field and has common knowledge should be able to implement it. So I won't go into details. the

In another embodiment of the present utility model, wherein the control unit 30 is a wireless controller (as shown in FIG. 3 ), comprising: a wireless signal transmitting unit 34 installed on the handle portion of the throat 20 21 (see Figure 4), used to send a speed control signal; a wireless signal receiving unit 35, electrically connected with the motor 10 to receive the speed control signal sent by the wireless signal transmitting unit 34, and control the speed The signal is sent to the rotation speed control circuit 40 , and the rotation speed of the motor 10 is controlled according to the rotation speed control signal, thereby adjusting the suction force of the vacuum cleaner main body 50 . One of the implementation manners may use radio frequency (radio frequency, RF) wireless control technology, or any one of bluetooth (bluetooth) wireless transmission technologies. the

In another embodiment of the present utility model, wherein the control unit 30 is a wireless controller, including: a wireless signal transmitting unit 34 installed on a wearing part 60, the wearing part 60 can be worn for use body, used to send a speed control signal; a wireless signal receiving unit 35, electrically connected with the motor 10 to receive the speed control signal sent by the wireless signal transmitting unit 34, and send the speed control signal to the The rotation speed control circuit 40 controls the rotation speed of the motor 10 according to the rotation speed control signal, and then adjusts the suction force of the vacuum cleaner main body 50 . the

One embodiment of the wearing part 60 is a strap that can be carried on the human body. As shown in Figure 5, a back-mounted vacuum cleaner 70 is taken as an example. It is also very convenient. the

It can be understood from the above description that the suction control device of the vacuum cleaner of the present invention, through a control unit 30 that can be installed on the grip part 21 or the wearing part 60, is not only suitable for such as upright vacuum cleaners or horizontal vacuum cleaners. Larger and heavier vacuum cleaners can also be applied to the back-mounted vacuum cleaner 70 , so when switching between different suction powers, the user does not need to bend over or lower his body to operate the suction power adjustment switch, which obviously has excellent convenience. the

Although the utility model has been disclosed above through the above-mentioned embodiments, it is not intended to limit the utility model, and anyone familiar with similar skills can make some changes and modifications without departing from the spirit and scope of the utility model. Retouching, so the patent protection scope of the utility model must be defined by the claims attached to this specification. the

Claims (9)

1. A suction control device for a vacuum cleaner, used to control the suction of the main machine of the vacuum cleaner, characterized in that it includes: A motor for driving a fan blade of the main body of the vacuum cleaner to generate suction; A throat with a gripping portion for sucking garbage or dust into the main body of the vacuum cleaner through the throat by using the suction force generated by the fan blade; a control unit, installed on the holding portion of the throat, capable of generating speed control signals of different speeds; and A rotation speed control circuit is electrically connected to the control unit and the motor, controls the rotation speed of the motor according to the rotation speed control signal, and then adjusts the suction force of the main body of the vacuum cleaner. 2. The suction control device of a vacuum cleaner according to claim 1, wherein the control unit is a wired controller capable of generating speed control signals of different speeds, and the wired controller is installed on the throat of the throat. In the holding part, the control unit has a signal line arranged along the throat, and the speed control signal is transmitted to the motor through the signal line. 3. The vacuum cleaner suction control device according to claim 2, characterized in that two conductive electrodes are arranged at the end of the signal line, and two access electrodes are arranged at the corresponding positions of the main body of the vacuum cleaner, and the access electrodes Electrically connected to the rotation speed control circuit, when the end of the throat is connected to the main body of the vacuum cleaner, the conductive electrode and the access electrode can be electrically connected to transmit the rotation speed control signal to the motor. 4. The suction control device of a vacuum cleaner according to claim 1, wherein the control unit is a wireless controller, comprising: a wireless signal transmitting unit installed on the holding portion of the throat for to send the speed control signal; a wireless signal receiving unit is electrically connected with the motor to receive the speed control signal sent by the wireless signal transmitting unit, and send the speed control signal to the speed control circuit. 5. The vacuum cleaner suction control device according to claim 4, wherein the wireless controller adopts any one of radio frequency wireless control technology and bluetooth wireless transmission technology. 6. The suction control device of a vacuum cleaner according to claim 1, wherein the control unit is a wireless controller, comprising: a wireless signal transmitting unit installed on a wearing part, and the wearing part can Worn on the user's body to send the speed control signal; a wireless signal receiving unit is electrically connected to the motor to receive the speed control signal sent by the wireless signal transmitting unit, and send the speed control signal to The speed control circuit. 7. The vacuum cleaner suction control device according to claim 6, wherein the wireless controller adopts any one of radio frequency wireless control technology and bluetooth wireless transmission technology. 8 . The suction control device for a vacuum cleaner as claimed in claim 1 , wherein the control unit is provided with a control push rod for the user to operate. 9 . 9. The suction control device for a vacuum cleaner as claimed in claim 1, wherein the control unit is provided with a knob for user operation.

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