WO2021057276A1

WO2021057276A1 - Electric shaver and electric shaver system

Info

Publication number: WO2021057276A1
Application number: PCT/CN2020/107344
Authority: WO
Inventors: 任晓东; 黄海湖; 李丐腾
Original assignee: 上海飞科电器股份有限公司
Priority date: 2019-09-27
Filing date: 2020-08-06
Publication date: 2021-04-01
Also published as: CN110480690A

Abstract

The present invention relates to the technical field of personal care electric appliances. Provided in the present invention are an electric shaver and an electric shaver system. The electric shaver comprises a body and a shaver head which are connected to each other. The body comprises a housing, a control chip and a driving member provided in the housing, and a handle sensing element provided on the housing. The shaver head comprises a head sensing element. The control chip is separately connected to the driving member, the handle sensing element, and the head sensing element. The driving member is further connected to the shaver head. The electric shaver is automatically started when both the handle sensing element and the head sensing element sense approach of a human body (skin). When the electric shaver is started, a user does not need to perform the operation of pressing down a switch, and therefore, the electric shaver is convenient to use and improves user experience.

Description

Electric shaver and electric shaver system

Technical field

The invention relates to the technical field of personal care appliances, in particular to an electric razor and an electric razor system.

Background technique

A razor includes a razor and a hair clipper, etc., and is a kind of knives that people use to shave beard and hair. Electric shavers have been recognized, popularized and widely used by market consumers, and electric shavers/hair clippers have entered thousands of households. With the improvement of consumers' quality of life, consumers also have new personalized and differentiated acceptance and requirements for their electric razor products.

At present, the switches of the existing electric shaver adopt light-touch key switches and mechanical push switches. Both of these two types of electric shavers require the user to individually press a switch to start, and therefore are inconvenient to use and cannot meet the ever-increasing use needs of users.

Summary of the invention

The purpose of the present invention is to provide an electric razor and an electric razor system to facilitate the user's use and improve the user's sense of experience.

The embodiment of the present invention provides an electric razor, which includes a body and a cutter head that are interconnected; the body includes a housing, a control chip and a driving component arranged in the housing, and a handle arranged on the housing A sensing element, the cutter head includes a head sensing element; the control chip is respectively connected with the driving part, the handle sensing element and the head sensing element, and the driving part is also connected with the cutter head;

The handle sensing element is used to generate a first sensing signal when the skin is approaching, and the first sensing signal is sent to the control chip; the head sensing element is used to generate a second sensing when the skin is approaching Signal and send the second sensing signal to the control chip; the control chip is used to send a driving control signal to the driving component when the first sensing signal and the second sensing signal are received, So that the driving part drives the cutter head to work.

Further, the handle sensing element includes a first induction guide coil arranged on the inner wall of the housing; the knife head includes a metal knife net, and the head sensing element includes the metal knife net and/or a surrounding area. The second induction guide coil provided by the metal knife net.

Further, the material of the first induction wire includes one or more of copper, steel, iron, aluminum, zinc and nickel; the material of the second induction wire includes copper, steel, iron, aluminum, One or more of zinc and nickel.

Further, the second induction conducting coil is covered with a protective layer.

Further, the material of the protective layer includes soft glue.

Further, the driving component includes an interconnected motor control switch and a motor, the motor control switch is also connected to the control chip, and the motor is also connected to the cutter head; the motor control switch includes the following Any kind: thyristor, transistor, field effect tube, thyristor and relay.

Further, the housing is also provided with a charging interface, and the housing is also provided with a power conversion module, a charging switch, and an electric energy storage module respectively connected to the control chip, and the power conversion module is also connected to the charging The interface is connected with the charging switch, and the charging switch is also connected with the electric energy storage module.

Further, a charging indicator light is further provided on the housing, and the charging indicator light is connected to the control chip.

Further, the electric razor further includes a cutter head holder for fixing the cutter head, the cutter head holder is connected to the body; a hair storage chamber is also provided under the cutter head.

An embodiment of the present invention also provides an electric razor system, including the above-mentioned electric razor, and further includes a charging head; the charging head is connected to the electric razor, and the charging head is used to charge the electric razor.

In the electric razor and the electric razor system provided by the embodiments of the present invention, the electric razor includes a body and a cutter head that are interconnected; the body includes a housing, a control chip and a driving component arranged in the housing, and a handle arranged on the housing Sensing element, the cutter head includes a head sensing element; the control chip is connected to the driving part, the handle sensing element and the head sensing element, and the driving part is also connected to the cutter head; the handle sensing element is used to sense the first induction when the skin is approaching Signal and send the first sensing signal to the control chip; the head sensing element is used to generate a second sensing signal when the skin is approaching, and send the second sensing signal to the control chip; the control chip is used to receive the first sensing signal The induction signal and the second induction signal send a driving control signal to the driving part, so that the driving part drives the cutter head to work. The electric razor will automatically start when both the handle sensing element and the head sensing element sense the proximity of the human body (skin). Since the user does not need to press the switch when starting, it is convenient to use and improves the user experience.

Description of the drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the specific embodiments or the description of the prior art. Obviously, the appendix in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic diagram of a circuit structure of an electric shaver provided by an embodiment of the present invention;

2 is a schematic diagram of the appearance of an electric razor provided by an embodiment of the present invention;

3 is a schematic diagram of the internal structure of an electric razor provided by an embodiment of the present invention;

Figure 4 is a top view of a cutter head of an electric razor provided by an embodiment of the present invention;

5 is a schematic diagram of the circuit structure of another electric shaver provided by an embodiment of the present invention;

Fig. 6 is a circuit diagram of an electric shaver provided by an embodiment of the present invention.

Icon: 10-body; 110-housing; 120-control chip; 130-drive part; 131-motor control switch; 132-motor; 140-handle sensing element; 150-charging interface; 160-power conversion module; 170- Charging switch; 180-electric energy storage module; 190-charging indicator; 20-knife head; 210-head sensing element; 211-metal knife net; 212-inner blade; 213-protective layer; 220-knife holder; 230 -Hair storage room.

detailed description

The technical solutions of the present invention will be clearly and completely described below in conjunction with embodiments. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

At present, the existing electric razors require the user to press the switch individually to start, which is inconvenient to use. Based on this, the electric razor and the electric razor system provided by the embodiments of the present invention can realize automatic start, which is convenient for users to use and improves users’ Sense of experience.

In order to facilitate the understanding of this embodiment, an electric shaver disclosed in the embodiment of the present invention is first introduced in detail.

The embodiment of the present invention provides an electric razor. The electric razor may be a razor, a hair clipper, or other electric equipment for removing hair.

Refer to the schematic diagram of the circuit structure of an electric shaver shown in FIG. 1, the appearance diagram of an electric shaver shown in FIG. 2, the internal structure diagram of an electric shaver shown in FIG. 3, and the schematic diagram of an electric shaver shown in FIG. A top view of the cutter head of an electric razor, the electric razor includes a main body 10 and a cutter head 20 interconnected; the main body 10 includes a housing 110, a control chip 120 and a driving component 130 arranged in the housing 110, and a housing 110 The handle sensing element 140, the cutter head 20 includes a head sensing element 210; the control chip 120 is respectively connected with the driving part 130, the handle sensing element 140 and the head sensing element 210, and the driving part 130 is also connected with the cutter head 20.

The above-mentioned handle sensing element 140 is arranged at the handle position (hand grip position) of the fuselage 10, and is used to generate a first sensing signal when the skin is approaching, and send the first sensing signal to the control chip 120; head sensing element 210 is used to generate a second sensing signal when the skin is approaching, and send the second sensing signal to the control chip 120; the control chip 120 is used to send a driving control signal to the driver when the first sensing signal and the second sensing signal are received Component 130, so that the driving component 130 drives the cutter head 20 to work.

In addition, the control chip 120 is also used to send a shutdown control signal when the first sensing signal and the second sensing signal are not received or only one of the first sensing signal and the second sensing signal is received during the working process of the cutter head 20 To the driving part 130 so that the driving part 130 stops driving the cutter head 20. In this way, the automatic shutdown function of the electric shaver is realized, and the electric energy can be saved at the same time.

Specifically, the material of the housing 110 may be, but is not limited to, plastic. The control chip 120 may be an MCU (Microcontroller Unit, Microcontroller Unit). For example, the control chip 120 adopts a single-chip microcomputer, and the model of the control chip 120 may be, but is not limited to, PL51T020. There may be one or more cutter heads 20. For example, there may be two or three cutter heads 20. The number of cutter heads 20 is not limited in this embodiment. The control chip 120 may be respectively connected to the driving part 130, the handle sensing element 140 and the head sensing element 210 through a transmission conductor (transmission line).

The above-mentioned electric razor will automatically start when the handle sensing element 140 and the head sensing element 210 both sense the proximity of the human body (skin), without the need for the user to perform a separate operation of pressing the switch, so it is convenient to use and improves the user experience.

The above electric shaver also has the function of preventing accidental touch: only when the handle sensing element 140 and the head sensing element 210 sense the proximity of the human body at the same time, it will automatically start, that is, when the user only approaches one of the handle sensing element 140 and the head sensing element 210, The electric razor will not operate or start up, thus effectively avoiding false touches, and the structure design is more reasonable.

In addition, the overall appearance of the above-mentioned electric shaver does not have any buttons or push switches, which is more conducive to waterproof treatment.

Optionally, the above-mentioned handle sensing element 140 includes a first induction guide coil arranged on the inner wall of the housing 110; as shown in FIGS. 2 to 4, the cutter head 20 includes a metal knife net 211, and the head sensing element 210 includes a metal knife. The net 211 and/or the second induction conducting coil arranged around the metal knife net 211.

Since the handle sensing element 140 and the head sensing element 210 are both inductive coils, and the human body is a conductor, based on the working principle of the antenna, both the handle sensing element 140 and the head sensing element 210 can generate induced electrical signals when the human body approaches, thereby achieving The automatic start of the electric shaver realizes a stable and reliable principle.

Specifically, as shown in FIGS. 1 to 4, the cutter head 20 includes a metal knife net 211 and an inner blade 212, and the driving part 130 is connected to the inner blade 212. The metal knife net 211 is used to cooperate with the inner blade 212 to cut hair (hair or beard, etc.), and to prevent the skin from being cut. The inner blade 212 is used to move relative to the metal knife net 211 under the driving of the driving part 130 to cut hair.

In a possible implementation manner, the metal knife net 211 is used as the head sensing element 210.

In another possible implementation manner, a second induction conducting coil can be arranged around the metal knife net 211, and the second induction conducting coil can be used as the head induction element 210.

In yet another possible implementation manner, the metal knife net 211 and the second induction guide coil are both used as the head induction element 210, and the metal knife net 211 and the second induction guide coil are respectively connected to the control chip 120, and the control chip 120 is connected to the control chip 120. When a signal sent by at least one of the metal knife net 211 and the second induction coil is received, it is determined that the second induction signal generated by the head induction element 210 is received. In this way, the head sensing element 210 has a larger area, can sense the proximity of the human body in time, and has a higher sensitivity.

Optionally, the material of the first induction wire includes one or more of copper, steel, iron, aluminum, zinc and nickel; the material of the second induction wire also includes copper, steel, iron, aluminum, One or more of zinc and nickel.

Optionally, in order to improve safety, as shown in FIGS. 2 to 4, the second induction conducting coil is covered with a protective layer 213. The protective layer 213 can be, but is not limited to, a plastic part. Preferably, the material of the protective layer 213 is soft rubber. In this case, the protective layer 213 can be referred to as a skin-feel bracket. The skin-feel bracket has a better touch and can further improve the user experience.

5 is a schematic diagram of the circuit structure of another electric shaver provided by an embodiment of the present invention. As shown in FIGS. 3 and 5, the driving component 130 includes a motor control switch 131 and a motor 132 interconnected, and the motor control switch 131 is also connected to each other. The control chip 120 is connected, and the motor 132 is also connected to the inner blade 212 of the cutter head 20; the motor control switch 131 includes any one of the following: a thyristor, a transistor, a field effect transistor, a thyristor, and a relay. The motor 132 can drive the inner blade 212 to rotate relative to the metal knife net 211, thereby realizing hair cutting.

Optionally, as shown in FIGS. 3 and 5, the housing 110 is further provided with a charging interface 150, and the housing 110 is also provided with a power conversion module 160, a charging switch 170, and an electric energy storage module 180 respectively connected to the control chip 120. The power conversion module 160 is also connected to the charging interface 150 and the charging switch 170 respectively, and the charging switch 170 is also connected to the electric energy storage module 180.

Specifically, the aforementioned power conversion module 160 may be an AC (Alternating current, alternating current) to DC (Direct current, direct current) module (AC/DC converter). The electric energy storage module 180 is used to supply power to the electronic components in the entire electric shaver. As shown in FIG. 5, the electric energy storage module 180 is also connected to the motor control switch 131 so as to supply power to the motor 132. The electric energy storage module 180 may be, but is not limited to, a lithium battery. The charging switch 170 includes any one of the following: a thyristor, a transistor, a field effect transistor, a thyristor, and a relay.

The charging control process of the above-mentioned electric shaver is as follows: when the power conversion module 160 is connected to the power supply through the charging interface 150, it will send a charging connection signal to the control chip 120; when the control chip 120 receives the charging connection signal, it obtains the power of the electric energy storage module 180 When the remaining power of the electric energy storage module 180 is lower than a certain preset value, the charging control signal is sent to the charging switch 170; after the charging switch 170 receives the charging control signal, the switch is closed to enable the power conversion module 160 to convert the The electric energy is stored in the electric energy storage module 180 to realize the charging of the electric energy storage module 180. Wherein, the aforementioned preset value can be set according to actual needs, for example, the preset value is set to 99%.

Optionally, as shown in FIG. 3 and FIG. 5, a charging indicator light 190 is further provided on the housing 110, and the charging indicator light 190 is connected to the control chip 120. The charging indicator light 190 is used to indicate the charging state of the electric energy storage module 180.

In a possible implementation manner, as shown in FIG. 3, the charging indicator light 190 includes two LED (Light Emitting Diode, light-emitting diode) lights with different luminous colors, which are used to indicate the charging state and the fully charged state respectively. . For example, a red LED light is used to indicate that it is charging and a green LED light is used to indicate that it is full.

Optionally, as shown in FIG. 2, the above-mentioned electric razor further includes a cutter head holder 220 for fixing the cutter head 20, and the cutter head holder 220 is connected to the body 10; as shown in FIG. 2 and FIG. A hair storage room 230 is also provided below. The hair storage room 230 is used to store the hair cut by the cutter head 20.

For ease of understanding, the embodiment of the present invention also provides a circuit diagram of an electric razor as shown in FIG. 6, which mainly shows the control chip 120, the handle sensing element 140, the head sensing element 210, the motor control switch 131, and the motor 132. 2. The charging switch 170, the electric energy storage module 180 and the charging indicator light 190, wherein the motor control switch 131 and the charging switch 170 both include field effect tubes, and the charging indicator light 190 includes two LED lights (LED1 and LED2).

It should be noted that the unmarked parts in FIG. 6 also include the overcharge and overdischarge protection circuit of the electric energy storage module 180, the power supply circuit of the control chip 120, the working current detection circuit, the voltage detection circuit, and the charging temperature protection circuit.

In addition, the corresponding algorithm program can also be programmed in the control chip 120 to adjust the sensitivity of the electric shaver. In this way, it is easier to control the electric shaver to a suitable sensitivity, and by improving the sensitivity, the automatic start or shut-off effect of the electric shaver can be optimized. The unmarked part in FIG. 6 also includes a software algorithm update module located above the charging indicator light 190.

The embodiment of the present invention also provides an electric razor system, including the above-mentioned electric razor, and further includes a charging head; the charging head is connected to the electric razor, and the charging head is used to charge the electric razor.

Specifically, the input end of the charging head is connected to the power source, and the output end of the charging head is connected to the charging interface of the electric shaver, so that the electric shaver is connected to the power source through the charging head to realize the charging of the electric shaver.

The implementation principle and technical effects of the electric razor system provided in this embodiment are the same as those in the foregoing electric razor embodiment. For a brief description, for the parts not mentioned in the embodiment of the electric razor system, please refer to the foregoing electric razor embodiment Corresponding content.

In all the examples shown and described herein, any specific value should be interpreted as merely exemplary, rather than as a limitation, and therefore, other examples of the exemplary embodiment may have different values.

It should be noted that similar reference numerals and letters indicate similar items in the following figures. Therefore, once a certain item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, they may be fixed connections or detachable connections. , Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood in specific situations.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention. range.

Claims

An electric razor, characterized in that it comprises a body and a cutter head that are interconnected; the body includes a casing, a control chip and a driving component arranged in the casing, and a handle sensing element arranged on the casing , The cutter head includes a head sensing element; the control chip is respectively connected with the driving part, the handle sensing element and the head sensing element, and the driving part is also connected with the cutter head;

The handle sensing element is used to generate a first sensing signal when the skin is approaching, and the first sensing signal is sent to the control chip; the head sensing element is used to generate a second sensing when the skin is approaching Signal and send the second sensing signal to the control chip; the control chip is used to send a driving control signal to the driving component when the first sensing signal and the second sensing signal are received, So that the driving part drives the cutter head to work.
The electric razor according to claim 1, wherein the handle sensing element includes a first induction guide coil arranged on the inner wall of the housing; the cutter head includes a metal knife net, and the head sensing element It includes the metal knife net and/or a second induction guide coil arranged around the metal knife net.
The electric razor according to claim 2, wherein the material of the first induction guide coil includes one or more of copper, steel, iron, aluminum, zinc, and nickel; the second induction guide coil The materials include one or more of copper, steel, iron, aluminum, zinc and nickel.
The electric razor according to claim 2, wherein the second induction conductive coil is coated with a protective layer.
The electric razor according to claim 4, wherein the material of the protective layer includes soft rubber.
The electric shaver according to claim 1, wherein the drive component comprises a motor control switch and a motor that are interconnected, the motor control switch is also connected to the control chip, and the motor is also connected to the cutter head. Connection; The motor control switch includes any one of the following: thyristors, transistors, field effect transistors, thyristors and relays.
The electric razor according to claim 1, wherein a charging interface is further provided on the housing, and a power conversion module, a charging switch and an electric energy storage module respectively connected to the control chip are provided in the housing, The power conversion module is also connected to the charging interface and the charging switch respectively, and the charging switch is also connected to the electric energy storage module.
The electric razor according to claim 7, wherein a charging indicator light is further provided on the housing, and the charging indicator light is connected to the control chip.
The electric razor according to any one of claims 1-8, wherein the electric razor further comprises a cutter head holder for fixing the cutter head, and the cutter head holder is connected to the body; A hair storage chamber is also arranged under the cutter head.
An electric shaver system, comprising the electric shaver according to any one of claims 1-9, and further comprising a charging head; the charging head is connected to the electric shaver, and the charging head is used for The electric shaver is charged.

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