Shaver electromagnetic heating circuit, shaver assembly and shaver

Abstract

The utility model discloses a shaver electromagnetic heating circuit, a shaver assembly and a shaver, the shaver electromagnetic heating circuit comprises a power supply input end, a first signal module, a second signal module, a first MOS tube, a second MOS tube, an inductance module and a first capacitor, the first MOS tube comprises a first grid electrode, a first source electrode and a first drain electrode, and the second MOS tube comprises a second grid electrode, a second source electrode and a second drain electrode; the output end of the first signal module is connected with the first grid electrode, and the first source electrode is connected with the power input end. The second MOS transistor comprises a second grid electrode, a second source electrode and a second drain electrode, the output end of the second signal module is connected with the second grid electrode, and the second source electrode is grounded; the first end of the inductance module is connected with the first drain electrode and the second drain electrode. The second end of the inductor module is connected with the first end of the first capacitor, and the second end of the first capacitor is grounded. The shaver can be subjected to electromagnetic induction heating, and the use comfort of a user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of shaver heating, in particular to a shaver electromagnetic heating circuit, a shaver assembly and a shaver. BACKGROUND

[0002] Electric shavers are daily necessities. Electric shavers are directly in contact with human skin during use. In winter, the metal head of the electric shaver will bring the user an ice-cold uncomfortable feeling, resulting in a decline in the user's experience. If the shaver head has a heating function, the user will no longer feel cold when shaving, and it can also promote blood circulation of the facial skin, achieve skin beautifying effect, and improve the user's experience. In related technologies, the shaver head mesh cover is directly powered to heat (using its resistance heating), but the heating is slow and needs a certain heating time to achieve stable heating effect, which is poor in user experience. CONTENT OF THE UTILITY MODEL

[0003] The shaver electromagnetic heating circuit, the shaver assembly and the shaver provided by the embodiments of the present application can perform electromagnetic induction heating on the shaver, thereby improving the user's experience.

[0004] In a first aspect, the embodiments of the present application provide a shaver electromagnetic heating circuit, comprising:

[0005] a power input end;

[0006] a first signal module;

[0007] a second signal module;

[0008] a first MOS tube, comprising a first gate, a first source and a first drain, an output end of the first signal module is connected with the first gate, and the first source is connected with the power input end;

[0009] a second MOS tube, comprising a second gate, a second source and a second drain, an output end of the second signal module is connected with the second gate, and the second source is grounded;

[0010] an inductor module, a first end of the inductor module is connected with the first drain and the second drain respectively;

[0011] a first capacitor, a second end of the inductor module is connected with a first end of the first capacitor, and a second end of the first capacitor is grounded.

[0012] According to the shaver electromagnetic heating circuit of the first aspect of the present application, at least the following advantages are achieved: when the first MOS tube is turned on and the second MOS tube is turned off, the current input from the power input end flows into the inductor module and charges the first capacitor; when the second MOS tube is turned on and the first MOS tube is turned off, the current input from the power input end stops flowing into the inductor module and the first capacitor enters a discharging state. Therefore, by controlling the turn-on or turn-off of the first MOS tube and the second MOS tube, the charging and discharging of the inductor module can be controlled, and then an electromagnetic field is generated. The electromagnetic field generates eddy currents in the shaver blade, and the eddy currents generate heat when flowing in the blade, thereby realizing electromagnetic induction heating and having the advantage of rapid heating. In addition, by connecting the output end of the first signal module to the first gate and connecting the output end of the second signal module to the second gate, the first signal module and the second signal module can control the turn-on and turn-off of the first MOS tube and the second MOS tube by inputting high and low level signals.

[0013] According to some embodiments of the first aspect of the present application, the first signal module includes a first input end, a first transistor, a second transistor, a first resistor, a second resistor, a third resistor, and a diode. The first input end is connected to a first end of the first resistor. A second end of the first resistor is connected to a base of the second transistor. An emitter of the second transistor is grounded. A collector of the second transistor is connected to a negative terminal of the diode, a base of the first transistor, and a first end of the second resistor, respectively. A second end of the second resistor is connected to a connection point of the power input end and the collector of the first transistor. A first end of the third resistor is connected to a connection point of the emitter of the first transistor and a positive terminal of the diode. A second end of the third resistor is connected to the first gate.

[0014] According to some embodiments of the first aspect of the present application, the second signal module includes a second input end, a third transistor, a fourth transistor, a fourth resistor, and a fifth resistor. The second input end is connected to a first end of the fourth resistor. A second end of the fourth resistor is connected to a base of the third transistor and a base of the fourth transistor, respectively. A collector of the third transistor is connected to the power input end. A collector of the fourth transistor is grounded. A first end of the fifth resistor is connected to a connection point of an emitter of the third transistor and an emitter of the fourth transistor. A second end of the fifth resistor is connected to the second gate.

[0015] According to some embodiments of the first aspect of the present application, the second signal module further comprises a sixth resistor, a first end of the sixth resistor being connected to the emitter of the third transistor, the emitter of the fourth transistor and the connection point of the fifth resistor, and a second end of the sixth resistor being connected to the base of the third transistor, the base of the fourth transistor and the connection point of the fourth resistor.

[0016] According to some embodiments of the first aspect of the present application, the shaver electromagnetic heating circuit further comprises a second capacitor, a first end of the second capacitor being connected to the second end of the inductor module, and a second end of the second capacitor being grounded.

[0017] According to some embodiments of the first aspect of the present application, the shaver electromagnetic heating circuit further comprises a third capacitor, a first end of the third capacitor being connected to the connection point of the power input and the first source, and a second end of the third capacitor being grounded.

[0018] According to some embodiments of the first aspect of the present application, the shaver electromagnetic heating circuit further comprises a control chip, the control chip being connected to the input end of the first signal module and the input end of the second signal module respectively.

[0019] According to some embodiments of the first aspect of the present application, the inductor module comprises a first inductor, a second inductor and a third inductor, a first end of the first inductor being connected to the first drain and the second drain respectively, a second end of the first inductor being connected to a first end of the second inductor, a second end of the second inductor being connected to a first end of the third inductor, and a second end of the third inductor being connected to a first end of the first capacitor.

[0020] In a second aspect, embodiments of the present application provide a shaver assembly, comprising the shaver electromagnetic heating circuit of the first aspect, the shaver assembly further comprising a mounting shell and a blade net cover, the blade net cover being mounted on a top of the mounting shell, the inductor module being mounted on a bottom of the mounting shell, a blade being further arranged between the blade net cover and the mounting shell, and the inductor module being opposite to the blade and the blade net cover.

[0021] In a third aspect, embodiments of the present application provide a shaver, comprising the shaver electromagnetic heating circuit of the first aspect or the shaver assembly of the second aspect.

[0022] Additional features and advantages of the application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are intended to provide a further understanding of the technical scheme of the utility model, and form a part of the specification, and are used together with the embodiments of the utility model to explain the technical scheme of the utility model, and do not constitute a limitation to the technical scheme of the utility model.

[0024] Figure 1 The circuit diagram of the electromagnetic heating circuit of the shaver provided for the embodiments of the present application is shown in the figure;

[0025] Figure 2 The structure diagram of the integrated MOS tube is shown in the figure; Figure 1 The structure diagram of the integrated MOS tube is shown in the figure;

[0026] Figure 3 The front structure diagram of the shaver assembly provided for the embodiments of the present application is shown in the figure;

[0027] Figure 4 The back structure diagram of the shaver assembly provided for the embodiments of the present application is shown in the figure. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear and understandable, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0029] It can be understood that, although the functional modules are divided in the device schematic diagram, and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a manner different from the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims or above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0030] The electric shaver is a daily necessity. The electric shaver directly contacts the human skin during use. In winter, the metal head of the electric shaver brings an ice-cold uncomfortable feeling to the user, resulting in a decrease in the user's use experience. If the shaver head has a heating function, the user will no longer feel cold when shaving, and the blood circulation of the facial skin can be promoted to achieve a skin beautifying effect and improve the user's use experience. In the related art, the shaver head mesh cover is directly powered to heat (using its resistance heating), but the heating is slow, and a certain heating time is needed to achieve stable heating effect, and the user experience is poor.

[0031] Based on this, the embodiment of the present application provides a shaver electromagnetic heating circuit, a shaver assembly and a shaver. When the first MOS tube is turned on and the second MOS tube is turned off, the current input by the power input end flows into the inductor module and charges the first capacitor. When the second MOS tube is turned on and the first MOS tube is turned off, the current input by the power input end stops flowing into the inductor module, and the first capacitor enters a discharging state. Therefore, by controlling the turn-on or turn-off of the first MOS tube and the second MOS tube, the charging and discharging of the inductor module can be controlled, and then an electromagnetic field is generated. The electromagnetic field generates an eddy current in the shaver blade. The eddy current generates heat when flowing in the blade, thereby realizing electromagnetic induction heating and having the advantage of rapid heating. In addition, by connecting the output end of the first signal module with the first gate and connecting the output end of the second signal module with the second gate, the first signal module and the second signal module can control the turn-on and turn-off of the first MOS tube and the second MOS tube by inputting high and low level signals.

[0032] The embodiment of the present application is further described below with reference to the drawings.

[0033] In the first aspect, with reference to Figure 1 and Figure 2 , Figure 1 The circuit diagram of the shaver electromagnetic heating circuit provided by the embodiment of the present application is shown in Figure 2 The structure diagram of the integrated MOS tube in Figure 1

[0034] It can be understood that the shaver electromagnetic heating circuit includes a power input end +7V, a first signal module, a second signal module, a first MOS tube Q5, a second MOS tube Q6, an inductor module and a first capacitor C1. The first MOS tube Q5 includes a first gate, a first source and a first drain. The second MOS tube Q6 includes a second gate, a second source and a second drain. The output end of the first signal module is connected with the first gate. The first source is connected with the power input end +7V. The first drain is connected with the first end of the inductor module. The output end of the second signal module is connected with the second gate. The second source is grounded. The second drain is connected with the first end of the inductor module. The second end of the inductor module is connected with the first end of the first capacitor C1. The second end of the first capacitor C1 is grounded.

[0035] ​Specifically, the different level signals sent by the first signal module can control the turn-off and turn-on of the first MOS tube Q5, and the different level signals sent by the second signal module can control the turn-off and turn-on of the second MOS tube Q6. When the first MOS tube Q5 is in the turn-on state and the second MOS tube Q6 is in the turn-off state, the working current input by the power input terminal +7V flows into the inductor module through the first MOS tube Q5 and charges the first capacitor C1; similarly, when the second MOS tube Q6 is in the turn-on state and the first MOS tube Q5 is in the turn-off state, the first end of the inductor module is grounded through the second MOS tube Q6, and at this time, the first capacitor C1 is in the discharging state.

[0036] It should be noted that the first signal module includes a first input terminal PWMA, a first transistor Q1, a second transistor Q2, a first resistor R1, a second resistor R2, a third resistor R3, and a diode D1, the first input terminal PWMA is connected with the first end of the first resistor R1, the second end of the first resistor R1 is connected with the base of the second transistor Q2, the emitter of the second transistor Q2 is grounded, the collector of the second transistor Q2 is connected with the negative terminal of the diode D1, the base of the first transistor Q1, and the first end of the second resistor R2 respectively, the second end of the second resistor R2 is connected to the connection point of the power input terminal +7V and the collector of the first transistor Q1, the first end of the third resistor R3 is connected to the connection point of the emitter of the first transistor Q1 and the positive terminal of the diode D1, and the second end of the third resistor R3 is connected with the first gate. Among them, the first MOS tube Q5 is a PMOS tube, when the first input terminal PWMA inputs a high level signal, the high level signal drives the second transistor Q2 to turn on through the first resistor R1, the base of the first transistor Q1 is grounded through the second transistor Q2, the first transistor Q1 is cut off, and the first gate of the first MOS tube Q5 is grounded through the third resistor R3, the diode D1 and the second transistor Q2, at this time, because there is a voltage drop between the first source and the first gate of the first MOS tube Q5, the first MOS tube Q5 is turned on, and the working current input by the power input terminal +7V flows into the inductor module through the first MOS tube Q5. When the first input terminal PWMA inputs a low level signal, the second transistor Q2 is cut off, and thus the negative terminal of the diode D1 is disconnected with the ground, at this time, the diode D1 is reverse biased, which isolates the base of the first transistor Q1 from the emitter of the first transistor Q1, the first transistor Q1 is saturated and turned on under the drive of the second resistor R2, the power input terminal +7V is connected with the first gate of the first MOS tube Q5 through the first transistor Q1, and the first MOS tube Q5 is cut off because the first source and the first gate are at the same potential. The first transistor Q1 and the second transistor Q2 provide current expansion for the first gate of the first MOS tube Q5 to speed up the turn-on and turn-off speed of the first MOS tube Q5, in addition, the first transistor Q1 can provide the same voltage as the power input terminal +7V for the first gate of the first MOS tube Q5 to realize reliable turn-off of the first MOS tube Q5.

[0037] It should be noted that the second signal module includes a second input end PWMB, a third transistor Q3, a fourth transistor Q4, a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6. The second input end PWMB is connected with the first end of the fourth resistor R4. The second end of the fourth resistor R4 is connected with the base of the third transistor Q3, the base of the fourth transistor Q4 and the first end of the sixth resistor R6 respectively. The collector of the third transistor Q3 is connected with the power input end +7V. The collector of the fourth transistor Q4 is grounded. The first end of the fifth resistor R5 is connected with the emitter of the third transistor Q3, the emitter of the fourth transistor Q4 and the second end of the sixth resistor R6 respectively. The second end of the fifth resistor R5 is connected with the second gate. The second MOS Q6 is an NMOS. When the second input end PWMB inputs a high level signal, the third transistor Q3 is driven to be turned on by the fourth resistor R4. The base of the fourth transistor Q4 is cut off due to the high level. The working current input by the power input end +7V drives the second MOS Q6 to be turned on through the third transistor Q3 and the fifth resistor R5. In addition, the third transistor Q3 and the fourth transistor Q4 provide the second gate of the second MOS Q6 with current expansion to accelerate the on-off speed of the second MOS Q6. Similarly, when the second input end PWMB inputs a low level signal, the base of the third transistor Q3 is cut off due to the low level. The base of the fourth transistor Q4 is turned on due to the low level. The second gate of the second MOS Q6 is grounded through the fifth resistor R5 and the fourth transistor Q4. The second MOS Q6 is cut off. In addition, the sixth resistor R6 is connected between the base and the emitter of the fourth transistor Q4 to make the fourth transistor Q4 completely turned on, and then make the voltage of the second gate of the second MOS Q6 close to 0V.

[0038] It should be noted that the first MOS Q5 and the second MOS Q6 can be integrated MOS 100, for example, the SMD double MOS with model NCE4614.

[0039] It should be noted that the shaver electromagnetic heating circuit further comprises a control chip, the control chip is connected with the first input end PWMA and the second input end PWMB respectively, the control chip outputs different level signals through the first input end PWMA and the second input end PWMB, and then controls the conduction and cut-off of the first MOS tube Q5 and the second MOS tube Q6. Among them, when the first input end PWMA inputs a high level signal, the second input end PWMB is a low level signal, and similarly, when the second input end PWMB inputs a high level signal, the first input end PWMA is a low level signal. In addition, since the first MOS tube Q5 and the second MOS tube Q6 exist in the crossover dead zone of the push-pull drive, when the control chip alternately outputs high level signals to the first input end PWMA and the second input end PWMB, it is necessary to make appropriate low level delay processing on the output of the first input end PWMA and the second input end PWMB to avoid the crossover dead zone and avoid the simultaneous conduction of the first MOS tube Q5 and the second MOS tube Q6.

[0040] Specifically, by controlling the conduction or cut-off of the first MOS tube Q5 and the second MOS tube Q6, the current flow direction of the inductor module can be controlled, and then an electromagnetic field is generated. The electromagnetic field will generate eddy currents in the shaver blade, and the eddy currents will generate heat when flowing in the blade, thereby realizing rapid heating by electromagnetic induction. Among them, the signal duty cycle of the first input end PWMA and the second input end PWMB can be controlled, or the voltage of the power input end can be adjusted (higher or lower than +7 volts), so as to adjust the wireless transmission power of the inductor module. The larger the wireless transmission power of the inductor module, the hotter the blade.

[0041] It can be understood that the shaver electromagnetic heating circuit further comprises a second capacitor C2 and a third capacitor C3, the first end of the second capacitor C2 is connected with the second end of the inductor module, the second end of the second capacitor C2 is grounded, the first end of the third capacitor C3 is connected to the connection point of the power input end +7V and the first source, and the second end of the third capacitor C3 is grounded.

[0042] Specifically, the inductor module comprises a first inductor L1, a second inductor L2 and a third inductor L3, the first end of the first inductor L1 is connected with the first drain and the second drain respectively, the second end of the first inductor L1 is connected with the first end of the second inductor L2, the second end of the second inductor L2 is connected with the first end of the third inductor L3, and the second end of the third inductor L3 is connected with the first end of the first capacitor C1.

[0043] It should be noted that in some embodiments, the signal frequency output by the first input end PWMA and the second input end PWMB is 100KHz to 110KHz, the first inductor L1, the second inductor L2 and the third inductor L3 are all multi-strand winding coils with an inductance of 5.6uH, an outer diameter of 19mm, an inner diameter of 9mm and a thickness of 2mm, the first capacitor C1 is a 1206 chip capacitor of NPO material with a capacitance of 100nF, an accuracy of 5% and a voltage resistance of 100 volts, and the second capacitor C2 is a 1206 chip capacitor of NPO material with an accuracy of 5% and a voltage resistance of 100 volts, and in addition, the capacitance of the second capacitor C2 can be adjusted between 5nF and 22nF according to actual application.

[0044] It should be noted that in some embodiments, the diode D1 can be selected from diodes of type 1N4148, the first triode Q1, the second triode Q2 and the third triode Q3 are NPN chip triodes of type MMBT3904 or 8050, the fourth triode Q4 is a PNP chip triode of type MMBT3906 or 8550, the third capacitor C3 is a chip capacitor with a capacitance of 10uF and a voltage resistance of 25V or more, and the resistance values of the first resistor R1, the second resistor R2, the fourth resistor R4 and the sixth resistor R6 are 1K ohms, and the resistance values of the third resistor R3 and the fifth resistor R5 are 2.2 ohms.

[0045] In a second aspect, referring to Figure 3 and Figure 4 , Figure 3 a front structure diagram of a razor assembly provided by the embodiments of the present application, Figure 4 a back structure diagram of a razor assembly provided by the embodiments of the present application.

[0046] It can be understood that the razor assembly further includes a mounting shell 200 and a blade net cover 300, the blade net cover 300 is installed on the top of the mounting shell 200, the inductor module is installed on the bottom of the mounting shell 200, and a blade is further arranged between the blade net cover 300 and the mounting shell 200, and the inductor module is opposite to the blade and the blade net cover 300. Wherein, the blade net cover 300 and the blade are both made of conductive materials, and by controlling the conduction or cutoff of the first MOS tube Q5 and the second MOS tube Q6, the charging and discharging of the inductor module can be controlled, and then an electromagnetic field is generated, the electromagnetic field generates eddy currents in the blade and the blade net cover 300, and the eddy currents generate heat when flowing in the blade and the blade net cover 300, thereby realizing rapid heating by electromagnetic induction. In addition, by controlling the signal duty cycle of the first input end PWMA and the second input end PWMB, or adjusting the voltage size (higher or lower than +7 volts) of the power input end, the wireless transmission power size of the inductor module can be adjusted, and the larger the wireless transmission power of the inductor module, the hotter the blade and the blade net cover.

[0047] It should be noted that the first mounting groove, the second mounting groove and the third mounting groove are mounted on the mounting shell 200, the top of the first mounting groove is mounted with the first blade cover, the first mounting groove and the first blade cover are provided with the first blade, the top of the second mounting groove is mounted with the second blade cover, the second mounting groove and the second blade cover are provided with the second blade, the top of the third mounting groove is mounted with the third blade cover, and the third mounting groove and the third blade cover are provided with the third blade. The first inductor L1 is arranged at the bottom of the first mounting groove and opposite to the first blade cover and the first blade through the mounting shell 200. The second inductor L2 is arranged at the bottom of the second mounting groove and opposite to the second blade cover and the second blade through the mounting shell 200. The third inductor L3 is arranged at the bottom of the third mounting groove and opposite to the third blade cover and the third blade through the mounting shell 200. That is, the first blade, the second blade, the third blade, the first blade cover, the second blade cover and the third blade cover are located on one side of the mounting shell 200, and the first inductor L1, the second inductor L2 and the third inductor L3 are located on the other side of the mounting shell 200. Since the first inductor L1, the second inductor L2 and the third inductor L3 are connected in series with each other, the charging and discharging of the first inductor L1, the second inductor L2 and the third inductor L3 can be simultaneously controlled by controlling the conduction or cut-off of the first MOS tube Q5 and the second MOS tube Q6, thereby realizing the heating of the first blade, the second blade, the third blade, the first blade cover, the second blade cover and the third blade cover.

[0048] It should be noted that P1 and P2 can be the lead fixing points of the inductor module on the mounting shell.

[0049] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A shaver electromagnetic heating circuit, characterized by, The shaving razor electromagnetic heating circuit comprises: a power input end; a first signal module; a second signal module; a first MOS tube comprising a first gate, a first source and a first drain, wherein an output end of the first signal module is connected to the first gate, and the first source is connected to the power input end; a second MOS tube comprising a second gate, a second source and a second drain, wherein an output end of the second signal module is connected to the second gate, and the second source is grounded; an inductor module, wherein a first end of the inductor module is connected to the first drain and the second drain respectively; a first capacitor, wherein a second end of the inductor module is connected to a first end of the first capacitor, and a second end of the first capacitor is grounded.

2. The shaver electromagnetic heating circuit according to claim 1, characterized in that, The first signal module comprises a first input end, a first triode, a second triode, a first resistor, a second resistor, a third resistor and a diode, wherein the first input end is connected to a first end of the first resistor, a second end of the first resistor is connected to a base of the second triode, an emitter of the second triode is grounded, a collector of the second triode is connected to a negative end of the diode, a base of the first triode and a first end of the second resistor respectively, a second end of the second resistor is connected to a connection point of the power input end and a collector of the first triode, a first end of the third resistor is connected to a connection point of an emitter of the first triode and a positive end of the diode, and a second end of the third resistor is connected to the first gate.

3. The shaver electromagnetic heating circuit of claim 1, wherein, The second signal module comprises a second input end, a third triode, a fourth triode, a fourth resistor and a fifth resistor, wherein the second input end is connected to a first end of the fourth resistor, a second end of the fourth resistor is connected to a base of the third triode and a base of the fourth triode respectively, a collector of the third triode is connected to the power input end, a collector of the fourth triode is grounded, a first end of the fifth resistor is connected to a connection point of an emitter of the third triode and an emitter of the fourth triode, and a second end of the fifth resistor is connected to the second gate.

4. The shaver electromagnetic heating circuit according to claim 3, characterized in that, The second signal module further comprises a sixth resistor, wherein a first end of the sixth resistor is connected to a connection point of the emitter of the third triode, the emitter of the fourth triode and the fifth resistor, and a second end of the sixth resistor is connected to a connection point of the base of the third triode, the base of the fourth triode and the fourth resistor.

5. The shaver electromagnetic heating circuit of claim 1, wherein, The shaving razor electromagnetic heating circuit further comprises a second capacitor, wherein a first end of the second capacitor is connected to a second end of the inductor module, and a second end of the second capacitor is grounded.

6. The shaver electromagnetic heating circuit of claim 1, wherein, The shaving razor electromagnetic heating circuit further comprises a third capacitor, wherein a first end of the third capacitor is connected to a connection point of the power input end and the first source, and a second end of the third capacitor is grounded.

7. The shaver electromagnetic heating circuit of claim 1, wherein, The shaving razor electromagnetic heating circuit further comprises a control chip, wherein the control chip is connected to the input end of the first signal module and the input end of the second signal module respectively.

8. The shaver electromagnetic heating circuit of claim 1, wherein, The inductance module comprises a first inductance, a second inductance and a third inductance, a first end of the first inductance is connected with the first drain and the second drain respectively, a second end of the first inductance is connected with a first end of the second inductance, a second end of the second inductance is connected with a first end of the third inductance, and a second end of the third inductance is connected with a first end of the first capacitor.

9. A shaving razor assembly characterized by, The shaver assembly further comprises a mounting housing and a blade net cover, the blade net cover is mounted on the top of the mounting housing, the inductance module is mounted on the bottom of the mounting housing, and a blade is arranged between the blade net cover and the mounting housing, and the inductance module is opposite to the blade and the blade net cover.

10. A shaver characterized by The shaver assembly further comprises a mounting housing and a blade net cover, the blade net cover is mounted on the top of the mounting housing, the inductance module is mounted on the bottom of the mounting housing, and a blade is arranged between the blade net cover and the mounting housing, and the inductance module is opposite to the blade and the blade net cover.

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