CN114161488A

CN114161488A - Induction type control circuit and electric shaver

Info

Publication number: CN114161488A
Application number: CN202111486617.5A
Authority: CN
Inventors: 孙观福; 苏长云; 袁善潞; 刘双春; 魏肃; 刘家斌
Original assignee: Xiamen Chipsun Science and Technology Co Ltd
Current assignee: Xiamen Chipsun Science and Technology Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-03-11

Abstract

The invention provides an induction type control circuit and an electric shaver, wherein the induction type control circuit comprises a cutter head module, a micro switch module, a main control module, a control module and a motor module, the micro switch module is connected with the cutter head module, the main control module is connected with the micro switch module, the control module is connected with the main control module, the motor module is connected with the control module, when the cutter head module is pressed downwards under stress, the cutter head module drives the micro switch module to be in a closed state, the main control module generates a starting signal according to the closed state of the micro switch module, and the control module starts the motor module according to the starting signal. Therefore, the induction type control circuit and the electric shaver are automatically opened and closed, the traditional mode of controlling the opening and closing of the button is replaced, the use by a user is facilitated, and the service life of the equipment is prolonged.

Description

Induction type control circuit and electric shaver

Technical Field

The present invention relates to an inductive control circuit, and more particularly to an inductive control circuit and an electric shaver.

Background

With the continuous improvement of the living standard of people, various small household electrical appliance products also come into the lives of common people, a manual shaver is commonly used in the past, although the manual shaver scrapes cleanly, the manual shaver takes a long time to shave, about 10-15 minutes is probably needed, and if the manual shaver is busy at ordinary times and does not work for a long time to do work, the manual shaver is not suitable. Later, an electric shaver is available, the electric shaver is fast and convenient, the noise is low, and the electric shaver is absolutely not a choice of busy office workers, but the common electric shaver is often provided with a control button to control the opening and closing of the shaver, and the use of a user is quite inconvenient.

Therefore, it is a primary objective of the claimed invention to provide an inductive control circuit and an electric shaver, so as to solve the above-mentioned problems.

Disclosure of Invention

The invention provides an induction type control circuit which comprises a cutter head module, a micro switch module, a main control module, a control module and a motor module.

The micro-gap switch module is connected with the cutter head module. The main control module is connected with the microswitch module. The control module is connected with the main control module. The motor module is connected with the control module. When the tool bit module is stressed and pressed down, the tool bit module drives the micro switch module to be in a closed state, the main control module generates a starting signal according to the fact that the micro switch module is in the closed state, and the control module starts the motor module according to the starting signal.

In an embodiment, the inductive control circuit further includes a delay shutdown module, connected to the control module and the motor module, for enabling the motor module to continue to operate for a preset time after the control module disconnects the start signal. Further, the preset time ranges from 0.5s to 3 s.

In an embodiment, the inductive control circuit further includes a press capture module, connected to the micro switch module and the main control module, for capturing a press degree of the micro switch module to generate a press value signal, and the main control module generates the start signal according to the press value signal and a close state of the micro switch module. Further, when the pressing degree of the micro switch module is larger than 2mm, the main control module generates the starting signal.

The invention also provides an electric shaver, which comprises a shaver head, a microswitch, a main control board, a control device and a motor.

The micro switch is arranged in the tool bit, the main control board is connected with the micro switch, and the control device is connected with the main control board and the motor. When the tool bit is pressed by force, the micro switch is pressed down, so that the micro switch is in a closed state, the main control board generates a starting signal according to the condition that the micro switch is in the closed state, and the control device starts the motor according to the starting signal.

In one embodiment, a plurality of elastic supporting members are arranged on the cutter head, and the micro switch is positioned below the elastic supporting members.

In one embodiment, the number of the elastic supporting members is three, the elastic supporting members are distributed in a triangular shape, and the micro switch is located at the center of the triangle.

In an embodiment, the electric shaver further includes a time-delay closing device, connected to the control device and the motor, for enabling the motor to continue to operate for a preset time after the control device disconnects the start signal.

In an embodiment, the electric shaver further includes a press-down capturing device connected to the micro switch and the main control board, for capturing a press-down degree of the micro switch and generating a press-down value signal, and the main control board generates the start signal according to the state of the micro switch and the press-down value signal.

One advantage of the present invention is to provide an inductive control circuit and an electric shaver, which can realize automatic opening and closing of the inductive control circuit and the electric shaver by using a tool bit module, a micro switch module, a main control module, a control module and a motor module, replace the traditional control key to control the opening and closing, facilitate the use of users, and prolong the service life of the device.

Another advantage of the present invention is to provide an inductive control circuit and an electric shaver, which avoid damage to components caused by frequent turning on and off of a motor circuit in a short time by setting a time-delay turning off module.

Another advantage of the present invention is to provide an inductive control circuit and an electric shaver, which can avoid the occurrence of motor startup caused by foreign matter interference by the arrangement of pressing down the catching module, and save power.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts; in the following description, the drawings are illustrated in a schematic view, and the drawings are not intended to limit the present invention.

FIG. 1 is a schematic diagram of an inductive control circuit according to the present invention;

FIG. 2 is a schematic circuit diagram of the inductive control circuit of the present invention;

fig. 3 is a schematic view of the structure of the electric shaver of the present invention;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

fig. 5 is a schematic view of the interior of the shaving head of the electric shaver shown in fig. 3;

fig. 6 is a schematic cross-sectional view of fig. 5.

Reference numerals:

10-an inductive control circuit; 12-a cutter head module; 14-a microswitch module; 142-a metal dome; 16-a main control module; 18-a control module; 20-a motor module; 22-delayed shutdown module; 24-pressing the capture module; 50-an electric shaver; 52-a cutter head; 54-a microswitch; 56-main control board; 58-control means; 60-a motor; 62-a resilient support.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments; the technical features designed in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or component in question must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In addition, the term "comprises" and any variations thereof mean "including at least".

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning directly connected to one another, indirectly connected through an intermediary, communicating between two components, etc. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an inductive control circuit 10 according to the present invention, and fig. 2 is a schematic circuit diagram of the inductive control circuit 10 when the motor 60 is started. To achieve at least one of the above advantages or other advantages, a first embodiment of the present invention provides an inductive control circuit 10. As shown, the inductive control circuit 10 includes a cutter head module 12, a microswitch module 14, a master control module 16, a control module 18, and a motor module 20.

A microswitch module 14 is connected to the head module 12. The main control module 16 is connected with the micro switch module 14. The control module 18 is connected to the main control module 16. The motor module 20 is connected to the control module 18.

The operation principle of the inductive control circuit 10 is as follows: when people want to shave and a human face is close to the cutter head module 12, the cutter head module 12 is pressed down under stress; then, the depression of the tool bit module 12 presses the microswitch module 14, so that the microswitch module 14 is in a closed state, and at this time, PINs 1 and 2 in fig. 2 are connected through the metal elastic sheet 142 pressed down inside the microswitch module 14 (PINs 1 and 2 in fig. 2 are in an open state); subsequently, the main control module 16 generates a start signal according to the state of the micro switch module 14 being closed, that is, the voltage at the P1 port in the main control module 16 in fig. 2 is the voltage obtained by dividing VCC by the resistor R1 and the resistor R2, and its value is [ VCC/(R1+ R2) ], R2, for example, R1 is 47k Ω, R2 is 1k Ω, the voltage at the P1 port is 0.0208VCC, and at this time, the P1 port is identified as low level, and generates the start signal; finally, the control module 18 activates the motor module 20 to operate the electrode module in response to the activation signal received from the main control module 16.

When the human face leaves the cutter head module 12, the PINs 1 and 2 in fig. 2 are in a disconnected state, and at this time, the level at the P1 port in the main control module 16 is VCC, and belongs to a high level, the start signal is not generated, but a shutdown signal is generated, so that the motor module 20 stops working.

In one embodiment, as shown in FIG. 1, the inductive control circuit 10 may further include a time delay shutdown module 22 and a push down capture module 24.

The delayed shutdown module 22 is connected to the control module 18 and the motor module 20, and configured to enable the motor module 20 to continue to operate for a preset time after the control module 18 disconnects the start signal. Thus, even if people leave the cutter head module 12 for a plurality of times at intervals in a very short time during shaving, the operation of the motor module 20 can be ensured, so as to avoid the damage of elements caused by frequent opening and closing of the motor 60 circuit in a short time. Preferably, the predetermined time is in a range of 0.5s to 3 s.

The press-down capturing module 24 is connected to the micro-switch module 14 and the main control module 16, and is configured to capture a press-down degree of the micro-switch module 14 to generate a press-down value signal. The master control module 16 generates the activation signal according to the closed state of the micro switch module 14 and the depression value signal. In other words, the main control module 16 does not generate the start signal only according to the single element of whether the switch module is in the closed state, but adds the determination element of the pressing value signal, so that if a foreign object accidentally touches the cutter head module 12, the pressing capture module 24 is provided, which can prevent the motor 60 from being started due to the interference of the foreign object, thereby being safer and saving power. Preferably, when the micro switch module 14 is pressed down more than 2mm, the main control module 16 generates a start signal to start the operation of the motor module 20.

Referring to fig. 3 and 4, fig. 3 is a schematic structural view of an electric shaver 50 according to the present invention, and fig. 4 is a schematic sectional view of fig. 3. To achieve at least one of the advantages or other advantages, the present embodiment provides an electric shaver 50 including a shaver head 52, a micro switch 54, a main control board 56, a control device 58, and a motor 60.

The micro switch 54 is arranged inside the cutter head 52, the main control board 56 is connected with the micro switch 54, and the control device 58 is connected with the main control board 56 and the motor 60. When people want to shave, the human face is close to the cutter head 52, and the cutter head 52 is pressed down under the stress; pressing down the tool bit 52 depresses the microswitch 54, causing the microswitch 54 to be in a closed state, i.e., the switch conducts the internal circuit; the main control board 56 generates a start signal according to the closed state of the microswitch 54; the control unit 58 activates the motor 60 in response to the activation signal, and the motor 60 starts to operate. On the contrary, when the human face leaves the cutter head 52, the cutter head 52 bounces, the microswitch 54 bounces to reset, the switch is internally disconnected, and the motor 60 stops working.

In one embodiment, as shown in fig. 3-6, the cutting head 52 is provided with a plurality of resilient supports 62, and the micro-switch 54 is located below the resilient supports 62. In this embodiment, the number of the elastic supporting members 62 is three, and the elastic supporting members are distributed in a triangular shape, and the micro switch 54 is located at the center of the triangular shape, so as to sense the pressing degree of the cutter head 52 more accurately, and the structural design is scientific and reasonable. If the number of the elastic supports 62 is two, the micro switch 54 is located at the middle of the two elastic supports 62.

In one embodiment, the electric shaver 50 further comprises a time delay closing means (not shown) and a press-down catching means (not shown). The delay closing device is connected to the control device 58 and the motor 60, and has the function of the delay closing module 22, and is used for enabling the motor 60 to continue to work for a preset time after the control device 58 disconnects the starting signal. The depression catching device is connected to the micro switch 54 and the main control board 56, and has the function of the depression catching module 24 described above, and is used for catching the depression degree of the micro switch 54 and generating a depression value signal. The main control board 56 generates an activation signal based on the microswitch 54 being in a closed state and the depressed value signal.

In summary, an advantage of the present invention is to provide an inductive control circuit 10 and an electric shaver 50, which utilize the matching arrangement of a cutter head module 12, a micro-switch module 14, a main control module 16, a control module 18 and a motor module 20 to realize automatic opening and closing of the inductive control circuit 10 and the electric shaver 50, so as to replace the traditional manner of controlling the opening and closing by a control button, thereby facilitating the use of the user and prolonging the service life of the device.

Another advantage of the present invention is to provide an inductive control circuit 10 and an electric shaver 50, which avoid the damage of components caused by frequent turning on and off of the motor 60 circuit in a short time by the arrangement of the time delay turning off module 22.

Another advantage of the present invention is to provide an inductive control circuit 10 and an electric shaver 50, which can avoid the start-up of the motor 60 caused by the interference of foreign matters and save power by pressing the capturing module 24.

In addition, it will be appreciated by those skilled in the art that, although there may be many problems with the prior art, each embodiment or aspect of the present invention may be improved only in one or several respects, without necessarily simultaneously solving all the technical problems listed in the prior art or in the background. It will be understood by those skilled in the art that nothing in a claim should be taken as a limitation on that claim.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An inductive control circuit, comprising: the inductive control circuit includes:

the tool bit module, the microswitch module, the main control module, the control module and the motor module;

the micro switch module is connected with the cutter head module, the main control module is connected with the micro switch module, the control module is connected with the main control module, and the motor module is connected with the control module;

when the tool bit module is pressed downwards under stress, the tool bit module drives the micro switch module to be in a closed state, the main control module generates a starting signal according to the fact that the micro switch module is in the closed state, and the control module starts the motor module according to the starting signal.

2. The inductive control circuit of claim 1, wherein: the induction type control circuit further comprises a delay closing module which is connected with the control module and the motor module and used for enabling the motor module to continuously work for a preset time after the control module disconnects the starting signal.

3. The inductive control circuit of claim 2, wherein: the preset time ranges from 0.5s to 3 s.

4. The inductive control circuit of claim 1, wherein: the induction type control circuit further comprises a pressing capture module connected with the micro switch module and the main control module and used for capturing the pressing degree of the micro switch module to generate a pressing value signal, and the main control module generates the starting signal according to the fact that the micro switch module is in a closed state and the pressing value signal.

5. The inductive control circuit of claim 4, wherein: and when the pressing degree of the micro switch module is more than 2mm, the main control module generates the starting signal.

6. An electric shaver characterized in that: the electric shaver includes:

the tool bit, the microswitch, the main control board, the control device and the motor;

the micro switch is arranged inside the cutter head, the main control board is connected with the micro switch, and the control device is connected with the main control board and the motor;

when the tool bit is pressed by force, the microswitch is pressed down, so that the microswitch is in a closed state, the main control panel generates a starting signal according to the condition that the microswitch is in the closed state, and the control device starts the motor according to the starting signal.

7. The electric shaver set forth in claim 6, wherein: the tool bit is provided with a plurality of elastic supporting pieces, and the micro switch is located below the elastic supporting pieces.

8. The electric shaver set forth in claim 7, wherein: the number of the elastic supporting pieces is three, the elastic supporting pieces are distributed in a triangular shape, and the micro switch is located in the center of the triangle.

9. The electric shaver set forth in claim 6, wherein: the electric shaver also comprises a delay closing device which is connected with the control device and the motor and is used for enabling the motor to continuously work for a preset time after the control device disconnects the starting signal.

10. The electric shaver set forth in claim 6, wherein: the electric shaver also comprises a pressing capture device which is connected with the micro switch and the main control board and used for capturing the pressing degree of the micro switch and generating a pressing value signal, and the main control board generates the starting signal according to the state that the micro switch is closed and the pressing value signal.