CN103868119A - Range hood intelligent control system and one-key type range hood - Google Patents

Abstract

The present invention relates to the technical field of control of household kitchen oil fume exhaust components, in particular to an intelligent control system for range hoods, including: a one-button touch control device, a main control module, a speed control module, a PWM control module and a time setting module; , the main control module is signal-connected with the one-button touch control device, and is used to receive the operation command sent by the one-button touch control device; the main control module is connected to the speed control module, the PWM control module and the time setting module; The speed control module and the PWM control module are electrically connected to the DC motor and the lighting lamp respectively. The one-button touch control device is provided with: a switch button, a time setting button, a lighting brightness touch button, a touch slide control bar and a display screen. Compared with the prior art, the present invention has the advantages of simple structure, convenient operation, various control functions and elegant appearance. The present invention also provides a one-button range hood with the above-mentioned intelligent control system.

Description

An intelligent control system for a range hood and a one-button range hood

technical field

The invention relates to the technical field of control of cooking fume exhaust components in household kitchens, in particular to an intelligent control system for range hoods and a one-button range hood.

Background technique

my country is a big producer of home appliances, especially kitchen appliances. In recent years, with the growth of the economic income of urban residents, people's living standards have generally improved, especially the improvement of living conditions and water, electricity, gas and other supporting facilities, creating conditions for a wide variety of kitchen appliances to enter thousands of households. After smart TVs, smart refrigerators, and smart washing machines, kitchen appliances have also begun to enter the door of smart home appliances.

Existing range hoods generally include: a casing, a fan system with a motor and an impeller, and a control device for controlling the work of the motor and the impeller. fume hood. At present, the control device on the range hood that controls the work of the fan system is usually a mechanical key-type, touch-type or inductive control switch, which controls the different speeds of the fan through different keys or contacts. This traditional button or contact control device mainly has the following defects: 1) Restricted by motor technology and cost, the button or contact control device can only control a few speeds, which cannot meet the needs of users for a wide range of speeds. The requirements for arbitrary adjustment of the internal speed; 2) Due to different users, the environment used in the kitchen is different, and the brightness requirements are also inconsistent, and the existing control device cannot adjust the brightness of the lamp according to the actual change of the environment; 3) Only It can adjust the speed of the motor. If you want to adjust the time, etc., you need to use other combination keys. The operation is cumbersome and the user experience effect is poor. In view of this, it is of great significance to develop and design an intelligent control system for range hoods that is easy to use, continuously adjustable in fan speed, diverse in control functions, and friendly in operation interface.

Contents of the invention

In view of the defects existing in the prior art, an object of the present invention is to provide an intelligent control system for range hoods with adjustable motor speed, lighting brightness and time settings.

Another object of the utility is to provide a one-button range hood with the above-mentioned intelligent control system.

To achieve the above object, the present invention adopts the following technical solutions.

An intelligent control system for range hoods, characterized in that it includes: a one-button touch control device, a main control module, a speed control module, a PWM control module and a time setting module; The signal connection of the control device is used to receive the operation command sent by the one-button touch control device; the main control module is connected to the speed control module, the PWM control module and the time setting module; the speed control module and the PWM control module are respectively electrically connected DC motor and lights.

As an improvement, the one-button touch control device is provided with: a switch button, a time setting button, a touch button for lighting brightness, a touch sliding control bar and a display screen; the touch sliding control bar is provided with a plurality of touch points.

As an improvement, the touch slide control bar is composed of a plurality of touch points, and there is a gap between every two adjacent touch points.

As an improvement, the speed control scheme of the DC motor is as follows: set the lowest and highest gear speeds of the DC motor, which are respectively υ1 and υ2; and then measure and calculate the voltage value of the DC motor lead-out terminal Vs when the motor speed is υ1 and υ2 respectively V1, V2; then the voltage value of the DC motor lead-out terminal corresponding to the Nth touch point is V1+(V2-V1)(N-1)/(M-1), where M represents the total number of touch points.

As an improvement, the lighting control scheme is as follows: set the minimum and maximum lighting brightness required by the kitchen; respectively measure and calculate the voltages at the lowest and highest lighting brightness, which are V3 and V4 respectively; then the DC corresponding to the Nth touch point The voltage value of the motor lead-out terminal is V3+(V4-V3)(N-1)/(M-1), where M represents the total number of touch points.

As an improvement, the time control scheme is as follows: in the time setting state, define that the brightness bar slides from left to right as a positive direction, the time increases upwards, and slides from right to left as a negative direction, and the time decreases.

As an improvement, the slide control method is as follows: first, initialize the main control module, and detect whether the touch slide control bar is valid; then record the current position of the touch slide control bar, and judge whether the current position is the same as the previous position; if not The value corresponding to the current position is obtained through the chip calculation and processing of the main control module, and the corresponding output device is controlled to perform the corresponding function.

The one-button range hood provided by the present invention includes: a range hood main body, a DC motor, a fan and a lighting lamp arranged on the range hood main body, and is characterized in that the range hood main body is also provided with a one-button Touch controls.

The aforementioned one-button touch control device is provided with: a switch button, a time setting button, a lighting brightness touch button, a touch slide control bar and a display screen.

The aforementioned touch slide control bar is composed of 10 to 30 small square touch points of 5mm×8mm, and the interval between every two adjacent touch points is 2mm-5mm.

Compared with the existing range hood, the intelligent control system of the range hood provided by the present invention has the following beneficial effects.

1. Adopt a one-button touch control device, and set a touch slide control bar and a display screen on the one-button touch control device, so that each light-emitting point of the touch slide control bar is a touch point. When the user uses it, only You need to slide your fingers left and right on the touch slide control bar to achieve the purpose of controlling the wind speed of the motor, and the operation and control are simple.

2. The DC motor is used to realize the continuous adjustment of the motor speed, which is more energy-saving and has good practicability.

3. The speed of the range hood, the brightness of the lamp and the adjustment of the time can all be realized through the one-button operation of the touch sliding control device, which greatly reduces the use of combination keys and makes the operation interface of the range hood more concise. Friendly and user-friendly, it effectively improves the grade of range hoods and highlights the intelligent characteristics of the current kitchen appliance industry.

The one-button range hood provided by the present invention adopts a one-button touch control device, and the rotation speed of the range hood, the brightness of the lamp and the time are adjusted through the one-button touch control device. The structure is simple, the appearance is generous, and the cleaning is convenient. . At the same time, the use of a DC motor makes it easier to start the range hood, and it consumes less energy when it is shut down, and the wind speed is higher. Compared with the existing range hood, it is more energy-saving and has a better range hood effect. In addition, the touch slide control bar is composed of 10 to 30 small square touch points of 5mm×8mm, and the distance between every two adjacent touch points is 2mm-5mm. While ensuring the control accuracy, the manufacturing cost is properly controlled, and the practicability is good. . In particular, if the touch points and spacing are too large, it will take up too much space and affect the aesthetic effect; if the touch points and spacing are too small, the control accuracy will be poor and affect the user experience.

Description of drawings

Fig. 1 shows the structural frame diagram of the range hood intelligent control system provided by the present invention;

FIG. 2 is a schematic structural diagram of a one-button touch control device provided by the present invention;

Fig. 3 shows the schematic diagram of terminal connections of the DC motor provided by the present invention;

Fig. 4 is a flowchart showing the operation of the intelligent control system for range hoods provided by the present invention.

Explanation of reference signs:

1. One-button touch control device 2. Main control module 3. Speed control module 4. PWM control module 5. Time setting module 6. DC motor 7. Lighting 1-1, switch button 1-2, time setting button 1 -3. Lighting brightness touch button 1-4. Touch slide control bar 1-5. Display.

Detailed ways

In order to further illustrate the essence of the present invention, the specific embodiments of the present invention are described as follows in conjunction with the accompanying drawings.

Embodiment of the control system

As shown in Figure 1, an intelligent control system for range hoods includes: a one-button touch control device 1, a main control module 2, a speed control module 3, a PWM (Pulse Width Modulation, pulse width modulation) control module 4 and a time Set up module 5. Wherein, the main control module 2 is signal-connected with the one-button touch control device 1 so as to receive the operation command issued by the one-button touch control device 1; the main control module 2 is connected to the speed control module 3 and the PWM control module 4 and time setting module 5. In this embodiment, the main control module 2 is preferably a single-chip microcomputer.

Specifically, the rotational speed control module 13 is controlled to be connected with the DC motor 6 to adjust the rotational speed of the DC motor 6; the PWM control module 5 is controlled to be connected to the lighting lamp 7, and adjusts the duty ratio through PWM pulse width modulation to change the illumination. The voltage at both ends of the lamp 7 achieves the purpose of controlling the brightness of the illuminating lamp 7; the time setting module 5 is used for setting the time.

As shown in Figure 2, the one-button touch control device 1 is provided with: switch button 1-1, time setting button 1-2, lighting brightness touch button 1-3, touch slide control bar 1-4 and display screen 1 -5. Wherein, the touch slide control bar 1-4 is composed of 10 to 30 small squares of 5mm×8mm, and the interval between two adjacent small squares is 2mm-5mm; in particular, each small square has an LED The luminous point of the light is a touch point, and 10 to 30 luminous points of the LED light form a brightness bar, which is used to control and adjust the motor speed, lighting brightness and time setting. The display screen 1-5 is used to display the working status and time setting mode of the motor and the lighting lamp. In this embodiment, the number of small squares is 22, and the interval between every two adjacent small squares is 3 mm. In particular, by default, touch the slider 1-4 to control the motor speed. When you need to control the lighting brightness and set the time, you only need to press the lighting brightness touch button 1-3 or the time setting button 1-2 respectively. .

Wherein, as shown in FIG. 3 , the rotational speed control scheme of the DC motor is as follows: the lead-out terminal Vs of the DC motor is the motor speed regulation signal voltage, and different voltage values correspond to different rotational speeds. According to the actual needs of the user and the actual range hood effect, set the lowest and highest gear speeds of the DC motor, which are υ1 and υ2 respectively. Then measure and calculate the voltage values V1 and V2 of the DC motor lead-out terminal Vs when the motor speed is υ1 and υ2 respectively. Since the touch slide control bar in this embodiment has 22 touch points, that is, each touch point corresponds to a rotation speed, the voltage value of the DC motor lead-out terminal Vs corresponding to the Nth touch point is V1+(V2-V1)(N -1)/21. Among them, the voltage corresponding to each touch point is through the motor speed control circuit, that is, PWM pulse width modulation to adjust the duty cycle and change the voltage of Vs, so as to achieve the purpose of controlling the speed of the DC motor.

The lighting control scheme is as follows: according to the user's actual light requirements for the kitchen, set the minimum and maximum lighting brightness required by the kitchen. Measure and calculate the voltage at the lowest and highest lighting brightness respectively, which are V3 and V4 respectively. The specific implementation is the same as the scheme of adjusting the Vs port voltage of the DC motor, so as to achieve the purpose of controlling the lighting lamp.

The time control scheme is as follows: in the time setting state, define the brightness bar to slide from left to right as the positive direction, the time is accumulated upwards, and slide from right to left as the negative direction, and the time decreases.

In actual work, as shown in Figure 4, first initialize the main control module, and detect whether the touch slide control bar is valid; then record the current position of the touch slide control bar, and judge whether the current position is the same as the previous position; if not Similarly, the value corresponding to the current position is obtained through the chip calculation processing of the main control module, and the corresponding output device is controlled to perform the corresponding function.

The range hood intelligent control system provided in this embodiment adopts a one-button touch control device, and a touch sliding control bar and a display screen are set on the one-button touch control device, so that each light-emitting point of the touch sliding control bar is It is a touch point, corresponding to different speeds, which greatly improves the user's choice, not just a decorative effect. At the same time, the intelligent control system of the range hood integrates the speed control of the range hood, the brightness adjustment of the lamp and the adjustment of the time, which greatly reduces the use of combination keys and makes the operation interface of the range hood more concise, friendly and convenient. Humanization effectively improves the grade of the range hood and highlights the intelligent characteristics of the current kitchen appliance industry. the

Examples of range hoods

A one-button range hood with the above-mentioned control system, comprising: a range hood main body, a DC motor, a fan and a lighting lamp arranged on the range hood main body, and is characterized in that the range hood main body is also provided with There is a one-button touch control device.

Wherein, the one-button touch control device is provided with: a switch button, a time setting button, a lighting brightness touch button, a touch slide control bar and a display screen. Wherein, the touch slide control bar is composed of a plurality of touch points, and there is a certain distance between every two adjacent touch points; the touch points are small squares of 5mm×8mm, and every two adjacent touch points The interval between them is 2mm-5mm. In other implementation manners, the shape of the touch point is other shapes such as circle, square and rhombus, which is not limited to this embodiment.

In particular, each small square has an LED light-emitting point, and it is a touch point. 10 to 30 LED light-emitting points form a brightness bar, which is used to control and adjust the motor speed, lighting brightness and time setting. The display screen is used to display the working status and time setting mode of the motor and the lighting lamp. In this embodiment, the number of the light-emitting points is preferably 22, and the interval between every two adjacent light-emitting points is 3 mm.

The one-button range hood provided in this embodiment adopts a one-button touch control device, and the speed of the range hood, the brightness of the lamp and the time are adjusted through the one-button touch control device. The structure is simple, the appearance is generous, and it is clean convenient.

The above specific embodiments have described the essence of the present invention in detail, but the scope of protection of the present invention cannot be limited thereto. All simple improvements and modifications made according to the essence of the present invention fall within the protection scope of the claims of the present invention.

Claims (9)

1. A range hood intelligent control system, characterized in that it comprises: a one-button touch control device, a main control module, a speed control module, a PWM control module and a time setting module; The signal connection of the touch control device is used to receive the operation command sent by the one-button touch control device; the main control module is connected to the speed control module, the PWM control module and the time setting module; the speed control module and the PWM control module are respectively Connect the DC motor and lights. 2. The range hood intelligent control system according to claim 1, wherein the one-button touch control device is provided with: switch button, time setting button, lighting brightness touch button, touch slide control bar and display screen; multiple touch points are arranged on the touch slide control bar. 3. The range hood intelligent control system according to claim 1, characterized in that, the rotational speed control scheme of the DC motor is as follows: set the lowest and highest gear speeds of the DC motor, which are respectively υ1 and υ2; When the motor speed is υ1, υ2, the voltage values of the DC motor lead-out terminals Vs are V1, V2; then the voltage value of the DC motor lead-out terminals corresponding to the Nth touch point is V1+(V2-V1)(N-1)/(M -1), where M represents the total number of touch points. 4. The intelligent control system for range hoods according to claim 1, wherein the lighting control scheme is as follows: set the minimum and maximum lighting brightness required by the kitchen; respectively measure and calculate the voltage when the lighting brightness is at the lowest and highest , are V3 and V4 respectively; then the voltage value of the DC motor lead-out terminal corresponding to the Nth touch point is V3+(V4-V3)(N-1)/(M-1), where M represents the total number of touch points . 5. The range hood intelligent control system according to claim 1, characterized in that the time control scheme is: define the brightness bar to slide from left to right as a positive direction, time to accumulate upwards, and slide from right to left as a negative direction Direction, time decrement. 6. The range hood intelligent control system according to claim 1, characterized in that the sliding control method is as follows: first, initialize the main control module, and detect whether the touch sliding control bar is valid; then record the current value of the touching sliding control bar position, and judge whether the current position is the same as the last position; if not, the value corresponding to the current position is obtained through the chip calculation and processing of the main control module, and the corresponding output device is controlled to perform the corresponding function. 7. One-button range hood, including: a range hood main body, a DC motor, a fan and a lighting lamp arranged on the range hood main body, characterized in that the range hood main body is also equipped with a one-button touch control device. 8. The one-button range hood according to claim 7, characterized in that the one-button touch control device is provided with: switch button, time setting button, lighting brightness touch button, touch slide control bar and display Screen. 9. The one-button range hood according to claim 8, characterized in that the touch slide control bar is composed of 10 to 30 small square touch points of 5mm×8mm, and between every two adjacent touch points The interval is 2mm-5mm.

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