CN205351438U - Touch smoke ventilator of button - Google Patents

Abstract

The utility model discloses a button-touch range hood, which comprises a body, a suction port, an operation panel and a control circuit. The suction port, the operation panel and the control circuit are all arranged on the body. Buttons, the operation panel is electrically connected with the control circuit, the operation panel includes metal plates, plastic plates and PCB boards arranged in sequence, the upper surface of the metal plate is flat, the plastic plate is provided with multiple through holes, and the PCB board is provided with multiple sensors , the sensors and the through holes are set corresponding to the touch buttons, and the multiple sensors are electrically connected to the control circuit. In this way, the accumulation of oil stains, etc. is prevented, and it is convenient to clean; when touching the metal plate, when an external force acts on the through hole, the metal plate will be slightly deformed, making the distance between the metal plate and the PCB board smaller, and the sensor will signal It is transmitted to the control circuit to cause the inductance change in the control circuit, and the presence or absence of the key is identified through the control circuit, so as to realize the corresponding function of the key, which is convenient to use.

Description

Button touch range hood

technical field

The utility model belongs to the field of household electrical appliances, in particular to a button-touch range hood.

Background technique

Most of today's range hoods use mechanical buttons. There is a gap between the control panel and the buttons of the mechanical buttons. The range hood uses a lot of fumes, so dirt or oil is easy to accumulate in the gap between the buttons and the panel. And not easy to clean. At present, some touch buttons have appeared, but because the whole process of using touch to realize the buttons can not be well realized, therefore, they are rarely used in real life; Spirit, affect the use.

Utility model content

The purpose of this utility model is to provide a button-touch range hood, which can solve at least one of the above-mentioned problems.

According to one aspect of the utility model, there is provided a button-touch range hood, which includes a body, a suction port, an operation panel and a control circuit. The suction port, the operation panel and the control circuit are all arranged on the body, and the operation panel is There are multiple touch buttons, and the operation panel is electrically connected to the control circuit. The operation panel includes metal plates, plastic plates and PCB boards arranged in sequence. The upper surface of the metal plate is flat, and the plastic plate is provided with multiple through holes. A plurality of sensors are provided, and the sensors and the through holes are arranged correspondingly to the touch keys, and the plurality of sensors are electrically connected with the control circuit.

The beneficial effects of the utility model are: an operation panel is provided on the machine body, and the upper surface of the metal plate in the operation panel is flat, which can prevent the accumulation of oil stains and the like, and is convenient for cleaning; a plurality of through holes are provided on the plastic plate , Therefore, when touching the metal plate, when the external force acts on the through hole, the metal plate will be slightly deformed, so that the distance between the metal plate and the PCB board will become smaller. After the sensor detects the change in deformation, the signal will be transmitted to the controller. The circuit causes the inductance change in the control circuit, and through the control circuit to identify whether there is a button, so as to realize the corresponding function of the button, which is convenient to use.

In some embodiments, each control circuit corresponds to and is electrically connected to a sensor. In this way, each sensor can sense a corresponding signal conveniently, and signal interference can be prevented.

In some embodiments, the touch-button range hood further includes an indicator light, which is arranged on the PCB, and the indicator light corresponds to the sensor. Therefore, the indicator light is provided, which can facilitate the user to identify the keys in operation and improve the convenience of use.

In some embodiments, a plurality of positioning bumps are provided on the plastic plate, and the positioning bumps correspond to the indicator lights. Therefore, the positioning bumps are provided to facilitate the light of the indicator light to pass through the plastic plate.

In some embodiments, the metal plate is provided with a plurality of light-transmitting holes, and the light-transmitting holes cooperate with the positioning bumps. Therefore, the light-transmitting hole is provided, which can facilitate the positioning and fixing of the metal plate and the plastic plate, facilitate installation, and facilitate the emission of light from the indicator light.

In some embodiments, the plastic board is provided with positioning feet, and the PCB board is provided with positioning holes corresponding to the positioning feet, and the positioning feet cooperate with the positioning holes. Therefore, the positioning feet are provided, which can facilitate the fixing and matching of the plastic board and the PCB board, and facilitate installation.

In some embodiments, the control circuit includes a control chip, an inductor and a capacitor, and the inductor and capacitor are connected in parallel and then electrically connected to the input terminal of the control chip. Therefore, when the metal plate is slightly deformed, the inductance in the control circuit changes, which in turn causes the frequency and amplitude of parallel resonance to change, and the presence or absence of a key is identified through the change in frequency and amplitude, which is convenient to use.

In some embodiments, the button-touch range hood further includes a lighting lamp, which is electrically connected to the control circuit, and the plurality of touch buttons are switch, timing, strong wind, stroke, weak wind and lighting. Thus, different functions can be controlled through different touch keys, which is convenient for operation.

Description of drawings

Fig. 1 is a structural schematic diagram of a touch button range hood of the present invention;

Fig. 2 is a schematic diagram of the explosion structure of the control panel in the button-touch range hood of the present invention;

Fig. 3 is a circuit diagram of the control circuit in the touch button range hood of the present invention.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to Fig. 1, Fig. 2 and Fig. 3: the button-touch range hood includes a body 1, a suction port 2, an operation panel 3 and a control circuit 4, and the suction port 2, the operation panel 3 and the control circuit 4 are all arranged on the body 1, the suction port 2 is located below the body 1. The operation panel 3 is provided with a plurality of touch buttons 5, the operation panel 3 is electrically connected with the control circuit 4, the operation panel 3 includes a metal plate 31, a plastic plate 32 and a PCB board 33 arranged in sequence, the upper surface of the metal plate 31 is a plane, The plastic plate 32 is provided with a plurality of through holes 321, the plastic plate 32 is a transparent ABS plate (Acrylonitrile-butdiene-styrene, acrylonitrile/butadiene/styrene copolymer plate), and the PCB (Printed circuit board, printed circuit) board 33 is provided with There are a plurality of sensors 34 , the sensors 34 and the through holes 321 are set corresponding to the touch keys 5 , the sensors 34 are located directly below the through holes 321 , and the plurality of sensors 34 are electrically connected to the control circuit 4 .

The button-touch range hood also includes a lighting lamp 7, which is electrically connected to the control circuit 4, and a plurality of touch buttons 5 are respectively switch, timing, strong wind, stroke, weak wind and lighting. In the actual use process, the corresponding functions can be activated by touching the buttons corresponding to the switch, timing, strong wind, stroke, weak wind and lighting.

Each control circuit 4 corresponds to a sensor 34 and is electrically connected.

The button-touch range hood also includes an indicator light 6, which is arranged on the PCB board 33. The indicator light 6 corresponds to the sensor 34, that is, one sensor 34 corresponds to one indicator light 6. When the corresponding sensor 34 senses a signal , the corresponding indicator light 6 is on.

The plastic plate 32 is provided with a plurality of positioning bumps 322 , and the positioning bumps 322 and the plastic plate 32 are integrally formed by injection molding. A positioning bump 322 is provided to facilitate the light of the indicator light 6 to pass through the plastic plate 32 .

The metal plate 31 is provided with a plurality of light-transmitting holes 311, the light-transmitting holes 311 cooperate with the positioning bumps 322, the light-transmitting holes 311 penetrate the metal plate 31, and the light of the indicator light 6 is transmitted through the light-transmitting holes 311, which is convenient for the operator to use . The light transmission hole 311 cooperates with the positioning bump 322 to facilitate the fixed cooperation between the metal plate 31 and the plastic plate 32; wherein, after the positioning bump 322 cooperates with the light transmission hole 311, the top of the positioning bump 322 is lower than or flush with the metal plate 31 of the upper surface. After the plastic plate 32 cooperates with the metal plate 31, it is bonded and fixed by dispensing, and the light hole 311 is sealed with glue to prevent dust, oil, etc. from falling into the light hole 311 and facilitate the cleaning of the metal plate 31.

The plastic plate 32 is provided with a positioning foot 323, the positioning foot 323 and the plastic plate 32 are integrally formed by injection molding, the PCB board 33 is provided with a positioning hole 331 corresponding to the positioning foot 323, the positioning foot 323 matches the positioning hole 331, and the positioning foot 323 is located on the periphery of the plastic plate 32 to improve the stability of positioning.

The control circuit 4 includes a control chip 41 , an inductor 42 and a capacitor 43 , wherein the model of the chip 41 is HIGWAY-C203G, and the inductor 42 and capacitor 43 are connected in parallel to the input end of the control chip 41 . The control chip 41 is connected to 3.3V voltage to realize the normal operation of the control chip 41 .

When the button-touch range hood of the utility model is in use, when the corresponding function needs to be activated, touch the corresponding button on the operation panel 3, that is, touch the metal plate 31, and the metal plate 31 undergoes a slight deformation, and the sensor 34 senses the contact between the metal plate 1 and the metal plate 31. The distance between the PCB boards 33 becomes smaller, and the sensor 34 transmits a signal to the control circuit 4 . When the distance between the metal plate 31 and the PCB board 33 changes, the inductance in the control circuit 4 changes, which in turn causes the frequency and amplitude of the parallel resonance to change, and the control chip 41 detects the change of the frequency and amplitude Recognize whether the operator has pressed a button, and control the start or close of the corresponding function of the body 1 .

The above is only the preferred embodiment of the utility model, it should be pointed out that, for those of ordinary skill in the art, without departing from the inventive concept of the utility model, some deformations and improvements can also be made. Belong to the protection scope of the utility model.

Claims (8)

1. button touching cooker hood, it is characterized in that, including body (1), pump orifice (2), guidance panel (3) and control circuit (4), described pump orifice (2), guidance panel (3) and control circuit (4) are all located on body (1), described guidance panel (3) is provided with multiple touch-key (5), described guidance panel (3) electrically connects with control circuit (4), described guidance panel (3) includes the metallic plate (31) being arranged in order, plastic plate (32) and pcb board (33), the upper surface of described metallic plate (31) is plane, described plastic plate (32) is provided with multiple through hole (321), described pcb board (33) is provided with multiple sensor (34), described sensor (34) and through hole (321) are all correspondingly arranged with touch-key (5), multiple described sensors (34) all electrically connect with control circuit (4).

2. button touching cooker hood according to claim 1, it is characterised in that each described control circuit (4) is corresponding with a sensor (34), and electrically connects.

3. button touching cooker hood according to claim 1 and 2, it is characterized in that, also including display lamp (6), described display lamp (6) is located on pcb board (33), and described display lamp (6) is corresponding with sensor (34).

4. button touching cooker hood according to claim 3, it is characterised in that described plastic plate (32) is provided with multiple positioning convex point (322), and described positioning convex point (322) is corresponding with display lamp (6).

5. button touching cooker hood according to claim 4, it is characterised in that described metallic plate (31) is provided with multiple loophole (311), and described loophole (311) matches with positioning convex point (322).

6. button touching cooker hood according to claim 1, it is characterized in that, described plastic plate (32) is provided with angle (323), described pcb board (33) is provided with the location hole (331) corresponding with angle (323), and described angle (323) matches with hole, location (331).

7. button touching cooker hood according to claim 3, it is characterized in that, described control circuit (4) includes control chip (41), inductance (42) and electric capacity (43), and described inductance (42) electrically connects with input with control chip (41) after electric capacity (43) parallel connection.

8. button touching cooker hood according to claim 5, it is characterized in that, also include illuminating lamp (7), described illuminating lamp (7) electrically connects with control circuit (4), multiple described touch-keys (5) respectively switch, regularly, high wind, apoplexy, weak wind and illumination.