Cosmetic device

Abstract

The utility model provides a beauty device. The beauty device comprises an isolation circuit and a working circuit. The first end of the isolation circuit is used for accessing a test voltage or outputting a driving signal. The working circuit is electrically connected with the second end of the isolating circuit; the working circuit is used for outputting the driving signal to the isolation circuit. According to the invention, withstand voltage of the test voltage is realized through isolation of the isolation circuit, the withstand voltage requirement of the beauty device is met, and the safety of the beauty device is improved. And meanwhile, the isolation circuit can also realize transmission of a driving signal, so that the normal work of the beauty device is ensured.

Description

Technical Field

[0001] The present application relates to the field of beauty devices, and in particular to a beauty device. Background Art

[0002] In order to meet safety standards, beauty devices and other radio frequency products need to undergo high voltage resistance tests and can only leave the factory after passing the tests. However, currently beauty devices and other radio frequency products cannot support 1000V high voltage tests. Utility Model Content

[0003] In order to solve the problems in the prior art, the present application provides a beauty device to achieve pressure resistance performance of the beauty device.

[0004] The present application provides a beauty device, the beauty device comprising:

[0005] An isolation circuit, wherein a first end of the isolation circuit is used to connect a test voltage or output a drive signal;

[0006] A working circuit is electrically connected to the second end of the isolation circuit; the working circuit is used to output the driving signal to the isolation circuit.

[0007] In one embodiment, the working circuit includes a control circuit and a drive circuit;

[0008] The driving circuit is electrically connected to the control circuit and the isolation circuit respectively, and the control circuit is used to control the driving circuit to output the driving signal.

[0009] In one embodiment, the beauty device includes a conductive component, and the conductive component is used to connect the test voltage or output the drive signal;

[0010] The isolation circuit includes a transformer, a first end of the transformer is electrically connected to the conductive component, and a second end of the transformer is electrically connected to the driving circuit.

[0011] In one embodiment, the beauty device includes a conductive component, and the conductive component is used to connect the test voltage or output the drive signal;

[0012] The isolation circuit comprises a relay; a first end of the relay is electrically connected to the conductive component, a second end of the relay is electrically connected to the drive circuit, and a third end of the relay is electrically connected to the control circuit;

[0013] The control circuit is used to output a control signal to the third end of the relay to control the conduction of a path between the first end and the second end of the relay, so that the drive circuit outputs a drive signal to the first end of the relay.

[0014] In one embodiment, the beauty device further comprises a first resistor and a second resistor; the first end of the relay comprises a first pin and a second pin, and the second end of the relay comprises a third pin and a fourth pin;

[0015] Two ends of the first resistor are electrically connected to the first pin and the third pin respectively, and two ends of the second resistor are electrically connected to the second pin and the fourth pin respectively;

[0016] The control circuit is used to output a control signal to the third end of the relay to control the conduction of the path between the first pin and the third pin, and to control the conduction of the path between the second pin and the fourth pin, and to enable the drive circuit to output the drive signal to the third pin and the fourth pin.

[0017] In one embodiment, the isolation circuit further includes a first switch circuit;

[0018] The third end of the relay includes a fifth pin and a sixth pin; the fifth pin is used to access the power supply voltage, and the sixth pin is electrically connected to the first end of the first switch circuit; the second end of the first switch circuit is electrically connected to the control circuit, and the third end of the first switch circuit is grounded;

[0019] The control circuit is used to control the first end and the third end of the first switch circuit to be turned on, so as to control the path between the first end and the second end of the relay to be turned on.

[0020] In one embodiment, the beauty device includes a conductive component, and the conductive component is used to connect the test voltage or output the drive signal;

[0021] The isolation circuit comprises an isolation optocoupler; a first end of the isolation optocoupler is electrically connected to the conductive component, a second end of the isolation optocoupler is electrically connected to the drive circuit, and a third end of the isolation optocoupler is electrically connected to the control circuit;

[0022] The driving circuit is used for outputting a driving signal to the first end of the isolation optical coupler.

[0023] In one embodiment, the beauty device further includes a second switch circuit, and the third end of the isolation optocoupler is electrically connected to the control circuit through the second switch circuit;

[0024] The first end of the second switch circuit is electrically connected to the third end of the isolation optical coupler, the second end of the second switch circuit is grounded, and the third end of the second switch circuit is electrically connected to the control circuit;

[0025] The control circuit is used to control the first end and the second end of the second switch circuit to be turned on, so as to control the isolation optical coupler to transmit the driving signal.

[0026] In one embodiment, the isolation optical coupler includes a first optical coupler and a second optical coupler;

[0027] The first end of the first optical coupler is used to access the power supply voltage, the second end of the first optical coupler is electrically connected to the first end of the second optical coupler, the third end of the first optical coupler is electrically connected to the driving circuit, and the fourth end of the first optical coupler is electrically connected to the conductive component;

[0028] The second end of the second optical coupler is electrically connected to the first end of the second switch circuit, the third end of the second optical coupler is electrically connected to the drive circuit, and the fourth end of the second optical coupler is electrically connected to the conductive component;

[0029] The second end of the isolation circuit includes the third end of the first optical coupler and the third end of the second optical coupler.

[0030] In one embodiment, the beauty device further comprises a power circuit;

[0031] The power supply circuit is used to output the power supply voltage to the isolation circuit and the working circuit; the control circuit is also used to control the drive circuit to convert the power supply voltage into the drive signal output.

[0032] The present application achieves withstand voltage of the test voltage through isolation of the isolation circuit, meets the withstand voltage requirement of the beauty device, and improves the safety of the beauty device. At the same time, the isolation circuit can also realize the transmission of the driving signal to ensure the normal operation of the beauty device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the module structure of an embodiment of the beauty device of the present application.

[0034] Figure 2 This is a schematic diagram of the circuit structure of an embodiment of the working circuit of the present application.

[0035] Figure 3 This is a schematic diagram of the circuit structure of a transformer according to an embodiment of the present application.

[0036] Figure 4 This is a schematic diagram of the circuit structure of a relay embodiment of the present application.

[0037] Figure 5 Schematic diagram of the circuit structure of an isolated optocoupler according to an embodiment of the present application.

[0038] Main component symbols

[0039] Beauty device 100 Isolation circuit 110

[0040] Working circuit 120 Conductive component 130

[0041] Control circuit 121 Drive circuit 122

[0042] First switch component Q1 Second switch component Q2

[0043] The third switch component Q3 and the fourth switch component Q4

[0044] Transformer T Relay 112

[0045] First switch circuit 111 Isolation optocoupler 113

[0046] Second switch circuit 140 First optical coupler H1

[0047] Second optical coupler H2 Power supply circuit 150

[0048] The first resistor R1 The second resistor R2

[0049] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0050] The following description will refer to the accompanying drawings to more fully describe the content of the present application. Shown in the accompanying drawings are exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals represent identical or similar components.

[0051] The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include the plural forms. In addition, when used herein, "including" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the existence or addition of one or more other features, regions, integers, steps, operations, components and / or groups thereof.

[0052] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. In addition, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant technology and the content of this application, and will not be interpreted as an idealized or overly formal meaning.

[0053] The following will describe exemplary embodiments in conjunction with the accompanying drawings. It should be noted that the components depicted in the reference drawings are not necessarily shown to scale; and the same or similar components will be given the same or similar reference numerals or similar technical terms.

[0054] Reference Figure 1 The present application provides a beauty device 100, which includes an isolation circuit 110 and a working circuit 120. The first end of the isolation circuit 110 is used to connect a test voltage or output a driving signal. The working circuit 120 is electrically connected to the second end of the isolation circuit 110; the working circuit 120 is used to output the driving signal to the isolation circuit 110.

[0055] In this embodiment, the beauty device 100 may further include a conductive component 130, which may be implemented by a metal electrode. For example, the conductive component 130 may include a first electrode sheet and a second electrode sheet. The conductive component 130 is used to contact the human epidermis, provide a microcurrent signal, or connect a test voltage. The first end of the isolation circuit 110 is electrically connected to the conductive component 130. The test voltage may be a high voltage of 1000 to 1200V. When the beauty device 100 is tested, the beauty device 100 is in a shutdown state, the isolation circuit 110 is in a disconnected state, and the test voltage may be connected by the conductive component 130. Due to the isolation effect of the isolation circuit 110, the test voltage cannot continue to be transmitted to the working circuit 120 after reaching the isolation circuit 110. In this way, the high-voltage resistance requirement of the beauty device 100 is achieved and the safety of the beauty device 100 is improved. When the beauty device 100 is working, the isolation circuit 110 is in a conducting state, and the working circuit 120 outputs a drive signal. The drive signal is transmitted to the conductive component 130 through the isolation circuit 110, and finally acts on the human skin.

[0056] Reference Figure 2 In one embodiment, the working circuit 120 may include a control circuit 121 and a driving circuit 122. The control circuit 121 is used to control the driving circuit 122 to output the driving signal.

[0057] In this embodiment, when the beauty device 100 is working, the control circuit 121 can control the drive circuit 122 to output a corresponding drive signal according to the user's settings, and control the isolation circuit 110 to be in a corresponding working state (disconnected state or on state). The control circuit 121 can be implemented by a chip with control function such as a microprocessor or FPGA.

[0058] In one embodiment, if Figure 2As shown, the driving circuit 122 includes a first switch component Q1, a second switch component Q2, a third switch component Q3 and a fourth switch component Q4. The first end of the first switch component Q1, the first end of the second switch component Q2, the first end of the third switch component Q3 and the first end of the fourth switch component Q4 are all electrically connected to the control circuit 121. The second end of the first switch component Q1 is used to access the power supply voltage, the third end of the first switch component Q1 is electrically connected to the second end of the second switch component Q2, and the third end of the second switch component Q2 is grounded; the third end of the first switch component Q1 is also electrically connected to the isolation circuit 110. The second end of the third switch component Q3 is used to access the power supply voltage, the third end of the third switch component Q3 is electrically connected to the second end of the fourth switch component Q4, and the third end of the fourth switch component Q4 is grounded; the third end of the third switch component Q3 is also electrically connected to the isolation circuit 110. The control circuit 121 is used to control the first switch component Q1 and the fourth switch component Q4 to be turned on, and the third switch component Q3 and the second switch component Q2 to be turned off; or, control the first switch component Q1 and the fourth switch component Q4 to be turned off, and the third switch component Q3 and the second switch component Q2 to be turned on.

[0059] In this embodiment, the control circuit 121 can control the operation of the first switch component Q1, the second switch component Q2, the third switch component Q3 and the fourth switch component Q4 by outputting a PWM signal. For example, when the PWM signal is at a high level, the first switch component Q1 and the fourth switch component Q4 are turned on, and the third switch component Q3 and the second switch component Q2 are turned off. At this time, the power supply voltage passes through the first switch component Q1, the first electrode sheet, the second electrode sheet and the fourth switch component Q4 to the ground. When the PWM signal is at a low level, the first switch component Q1 and the fourth switch component Q4 are turned off, and the third switch component Q3 and the second switch component Q2 are turned on. At this time, the power supply voltage passes through the third switch component Q3, the second electrode sheet, the first electrode sheet and the second switch component Q2 to the ground. In this way, under the control of the PWM signal, the four switch components are alternately turned on to output a square wave AC signal. The square wave AC signal acts on the human skin after passing through the isolation circuit 110 and the conductive component 130.

[0060] Reference Figure 3 In one embodiment, the isolation circuit 110 may include a transformer T, a first end of the transformer T is electrically connected to the conductive component 130 , and a second end of the transformer T is electrically connected to the driving circuit 122 .

[0061] In this embodiment, the transformer T includes a magnet and windings on both sides of the magnet. When testing, the beauty device 100 is in a shutdown state, and the test voltage is connected to the first end of the transformer T by the conductive component 130. The test voltage is a DC voltage. Due to the isolation effect of the transformer T, the test voltage at the first end of the transformer T cannot be transmitted to the second end, so that the beauty device 100 can withstand the test voltage. When working, the control circuit 121 controls the drive circuit 122 to output a drive signal. The drive signal is an AC signal. Under the electromagnetic induction of the magnet, it can be smoothly transmitted from the first end of the transformer T to the second end, and then transmitted to the conductive component 130. The transformer T can realize the transmission of the drive signal through electromagnetic induction, and can play a role in electrical isolation of the signals at both ends, thereby improving the safety of the beauty device 100. Among them, the transformer T winding can adopt a sandwich winding method to make the signal transmission effect more stable and the waveform more standardized. The magnetic material of the transformer T can be selected from silicon steel sheets to achieve better low-frequency effects.

[0062] Reference Figure 4 In one embodiment, the isolation circuit 110 includes a relay 112; a first end (ie, Figure 4 Pin 1 and pin 2 of the relay 112 are electrically connected to the conductive component 130, and the second end of the relay 112 (i.e. Figure 4 Pins 3 and 4 of the relay 112 are electrically connected to the drive circuit 122, and the third terminal of the relay 112 (i.e. Figure 4 Pin 5 and pin 6 of the relay 112 are electrically connected to the control circuit 121. The control circuit 121 is used to output a control signal to the third end of the relay 112 to control the conduction of the path between the first end and the second end of the relay 112, so that the drive circuit 122 outputs a drive signal to the first end of the relay 112.

[0063] In this embodiment, the relay 112 is a normally open relay, and the control circuit 121 can output a control signal to control the first end and the second end of the relay 112 to be turned on, and then the drive signal output by the drive circuit 122 is output to the conductive component 130 through the relay 112. When testing, the beauty device 100 is in a shutdown state, there is no control signal at the third end of the relay 112, and the first end and the second end of the relay 112 remain in a disconnected state. After the test voltage is transmitted to the first end of the relay 112 through the conductive component 130, there is no transmission path, and it cannot be transmitted to the second end of the relay 112, so as to achieve the withstand voltage of the test voltage. When working, the control circuit 121 can output a control signal according to the user's setting to control the first end and the second end of the relay 112 to be turned on, so as to achieve the normal transmission of the drive signal. Among them, the relay 112 can be implemented by selecting a relay 112 with corresponding withstand voltage performance according to actual needs, so that the relay 112 can meet the withstand voltage requirements.

[0064] In one embodiment, the beauty device 100 further includes a first resistor R1 and a second resistor R2; the first end of the relay 112 includes a first pin (ie Figure 4 Pin 1) and the second pin (i.e. Figure 4 The second end of the relay 112 includes a third pin (i.e. Figure 4 Pin 3) and the fourth pin (i.e. Figure 4 The first resistor R1 has two ends electrically connected to the first pin and the third pin, respectively, and the second resistor R2 has two ends electrically connected to the second pin and the fourth pin, respectively. The control circuit 121 is used to output a control signal to the third end of the relay 112 to control the conduction of the path between the first pin and the third pin, and to control the conduction of the path between the second pin and the fourth pin, and to enable the drive circuit 122 to output the drive signal to the third pin and the fourth pin.

[0065] In this embodiment, the third pin and the fourth pin of the relay 112 are used to receive the EMS+ signal and the EMS- signal output by the driving circuit 122, respectively. When the beauty device 100 is working, the control circuit 121 outputs a control signal to control the first pin of the relay 112 to be connected to the third pin, and the second pin to be connected to the fourth pin. The EMS+ signal is transmitted to the first pin through the third pin, and then reaches the human epidermis through the first electrode sheet. The EMS- signal is transmitted to the second pin through the fourth pin, and then reaches the human epidermis through the second electrode sheet.

[0066] When testing, the beauty device 100 is in the off state, the third end of the relay 112 does not receive the control signal, the first pin and the third pin of the relay 112 remain disconnected, and the second pin and the fourth pin remain disconnected. After the test voltage is transmitted from the conductive component 130 to the first pin and the second pin of the relay 112, the transmission path is disconnected and cannot be transmitted to the second end of the relay 112, thereby achieving withstand voltage of the test voltage.

[0067] In one embodiment, if Figure 4 As shown, the isolation circuit 110 further includes a first switch circuit 111. The third end of the relay 112 includes a fifth pin (i.e. Figure 4 Pin 5) and pin 6 (i.e. Figure 4 The fifth pin is used to access the power supply voltage, and the sixth pin is electrically connected to the first end of the first switch circuit 111; the second end of the first switch circuit 111 is electrically connected to the control circuit 121, and the third end of the first switch circuit 111 is grounded. The control circuit 121 is used to control the first end and the third end of the first switch circuit 111 to be conductive, so as to control the path between the first end and the second end of the relay 112 to be connected.

[0068] In this embodiment, the first switch circuit 111 can be implemented by a triode. The relay 112 can also include a magnetic core, and the two ends of the magnetic core are the fifth pin and the sixth pin respectively. When the beauty device 100 is working, the control circuit 121 can output a high / low level to control the first end and the third end of the first switch circuit 111 to be turned on, and the power supply voltage is transmitted from the magnetic core to the ground through the first switch circuit 111. There is current passing through the magnetic core, generating a magnetic field, attracting the contacts of the first pin and the third pin to close, and the contacts of the second pin and the fourth pin to close, thereby connecting the path between the drive circuit 122 and the conductive component 130.

[0069] During the test, the beauty device 100 is in the off state, the fifth pin of the relay 112 has no power supply voltage input, the first pin and the third pin of the relay 112 are disconnected, and the second pin and the fourth pin are also disconnected, so as to achieve withstand voltage to the test voltage.

[0070] In one embodiment, the isolation circuit 110 may further include a third optical coupler, a fourth optical coupler and a third switch circuit. The third optical coupler and the fourth optical coupler are arranged between the conductive component 130 and the relay 112, and are used to realize the connection control between the relay 112 and the conductive component 130. The third switch circuit can be realized by using a transistor. The first end of the third optical coupler is used to access the power supply voltage, the second end of the third optical coupler is electrically connected to the first end of the fourth optical coupler, the second end of the fourth optical coupler is electrically connected to the first end of the third switch circuit, the second end of the third switch circuit is the controlled end, and the third end of the third switch circuit is grounded. In this way, the third optical coupler and the fourth optical coupler can be controlled to be turned on / off by controlling the third switch circuit to be turned on / off, thereby realizing the transmission of the drive signal.

[0071] In one embodiment, if Figure 5 As shown, the isolation circuit 110 includes an isolation optocoupler 113; a first end of the isolation optocoupler 113 is electrically connected to the conductive component 130, and a second end of the isolation optocoupler 113 is electrically connected to the drive circuit 122. The drive circuit 122 is used to output a drive signal to the first end of the isolation optocoupler 113, and a third end of the isolation optocoupler 113 is electrically connected to the control circuit 121.

[0072] In this embodiment, when the beauty device 100 is working, the control circuit 121 can control the isolation optocoupler 113 to be turned on, and transmit the drive signal output by the drive circuit 122 to the conductive component 130. When testing, the beauty device 100 is in the off state, and the isolation optocoupler 113 is also in the off state. The test voltage is connected through the conductive component 130, and after reaching the first end of the isolation optocoupler 113, it cannot continue to be transmitted to the second end of the isolation optocoupler 113, so as to achieve the withstand voltage of the test voltage. Among them, the isolation optocoupler 113 can be implemented by using an optical coupler with high voltage resistance performance.

[0073] In one embodiment, the beauty device 100 further includes a second switch circuit 140, and the third end of the isolation optocoupler 113 is electrically connected to the control circuit 121 through the second switch circuit 140. The first end of the second switch circuit 140 is electrically connected to the third end of the isolation optocoupler 113, the second end of the second switch circuit 140 is grounded, and the third end of the second switch circuit 140 is electrically connected to the control circuit 121. The control circuit 121 is used to control the first end and the second end of the second switch circuit 140 to be turned on, so as to control the isolation optocoupler 113 to transmit the drive signal.

[0074] In this embodiment, the second switch circuit 140 can be implemented by a transistor. When the beauty device 100 is working, the control circuit 121 can control the first and second ends of the second switch circuit 140 to be turned on, thereby turning on the isolation optical coupler 113 to achieve transmission of the driving signal.

[0075] In one embodiment, the isolation optocoupler 113 includes a first optocoupler H1 and a second optocoupler H2. The first end of the first optocoupler H1 is used to access the power supply voltage, the second end of the first optocoupler H1 is electrically connected to the first end of the second optocoupler H2, the third end of the first optocoupler H1 is electrically connected to the drive circuit 122, and the fourth end of the first optocoupler H1 is electrically connected to the conductive component 130. The second end of the second optocoupler H2 is electrically connected to the first end of the second switch circuit 140, the third end of the second optocoupler H2 is electrically connected to the drive circuit 122, and the fourth end of the second optocoupler H2 is electrically connected to the conductive component 130. The second end of the isolation circuit 110 includes the third end of the first optocoupler H1 and the third end of the second optocoupler H2.

[0076] In this embodiment, the first optical coupler H1 can be implemented by using a MOS (Metal-Oxide-Semiconductor Field-Effect Transistor) tube with high voltage resistance. For example, the first optical coupler H1 can include two MOS tubes with a withstand voltage of 1500V, and the two MOS tubes are connected in series and electrically connected to the conductive component 130 and the drive circuit 122 respectively. In this way, under a voltage stress of 0.8, the two MOS tubes with a withstand voltage of 1500V can reach a withstand voltage of 1200V, thereby realizing the withstand voltage of the beauty device 100 to the test voltage. The structure of the second optical coupler H2 is the same as that of the first optical coupler H1.

[0077] When the beauty device 100 is working, the control circuit 121 controls the second switch circuit 140 to be turned on, and the power supply voltage passes through the first end of the first optical coupler H1, the second end of the first optical coupler H1, the first end of the second optical coupler H2, and the second end of the second optical coupler H2 to the ground, thereby turning on the third end and the fourth end of the first optical coupler H1, and the third end and the fourth end of the second optical coupler H2, so as to realize the transmission of the driving signal. During the test, the beauty device 100 is in the off state, and the first optical coupler H1 and the second optical coupler H2 are both disconnected. The test voltage reaches the fourth end of the first optical coupler H1 and the fourth end of the second optical coupler H2 through the conductive component 130. Due to the withstand voltage performance of the first optical coupler H1 and the second optical coupler H2, the test voltage will not break down the first optical coupler H1 and the second optical coupler H2, so as to realize the withstand voltage of the test voltage.

[0078] In one embodiment, please refer again to Figure 1The beauty device 100 may further include a power supply circuit 150. The power supply circuit 150 is used to output the supply voltage to the isolation circuit 110 and the working circuit 120; the control circuit 121 is also used to control the drive circuit 122 to convert the supply voltage into the drive voltage output.

[0079] In this embodiment, the power circuit 150 can be implemented by a step-up / step-down chip. The input end of the power circuit 150 can be connected to a battery or a mains supply. The power circuit 150 can provide a supply voltage to the drive circuit 122 and the control circuit 121, so that the control circuit 121 controls the drive circuit 122 to output a drive signal. The power circuit 150 can also provide a supply voltage to the isolation circuit 110, so that the control circuit 121 controls the isolation circuit 110 to work.

[0080] The present application achieves withstand voltage of the test voltage through isolation of the isolation circuit 110, meets the withstand voltage requirement of the beauty device 100, and improves the safety of the beauty device 100. At the same time, the isolation circuit 110 can also realize the transmission of the driving signal to ensure the normal operation of the beauty device 100.

[0081] In the above, the specific implementation of the present application is described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various changes and substitutions may be made to the specific implementation of the present application without departing from the spirit and scope of the present application. These changes and substitutions are all within the scope defined by the present application.

Claims

1. A beauty device, characterized in that: The beauty device comprises: An isolation circuit, wherein a first end of the isolation circuit is used to connect a test voltage or output a drive signal; A working circuit is electrically connected to the second end of the isolation circuit; the working circuit is used to output the driving signal to the isolation circuit.

2. The beauty device according to claim 1, characterized in that: The working circuit includes a control circuit and a drive circuit; The driving circuit is electrically connected to the control circuit and the isolation circuit respectively, and the control circuit is used to control the driving circuit to output the driving signal.

3. The beauty device according to claim 2, characterized in that: The beauty device comprises a conductive component, and the conductive component is used to connect the test voltage or output the driving signal; The isolation circuit includes a transformer, a first end of the transformer is electrically connected to the conductive component, and a second end of the transformer is electrically connected to the driving circuit.

4. The beauty device according to claim 2, characterized in that: The beauty device comprises a conductive component, and the conductive component is used to connect the test voltage or output the driving signal; The isolation circuit comprises a relay; a first end of the relay is electrically connected to the conductive component, a second end of the relay is electrically connected to the drive circuit, and a third end of the relay is electrically connected to the control circuit; The control circuit is used to output a control signal to the third end of the relay to control the conduction of a path between the first end and the second end of the relay, so that the drive circuit outputs a drive signal to the first end of the relay.

5. The cosmetic device according to claim 4, characterized in that: The beauty device further comprises a first resistor and a second resistor; the first end of the relay comprises a first pin and a second pin, and the second end of the relay comprises a third pin and a fourth pin; Two ends of the first resistor are electrically connected to the first pin and the third pin respectively, and two ends of the second resistor are electrically connected to the second pin and the fourth pin respectively; The control circuit is used to output a control signal to the third end of the relay to control the conduction of the path between the first pin and the third pin, and to control the conduction of the path between the second pin and the fourth pin, and to enable the drive circuit to output the drive signal to the third pin and the fourth pin.

6. The cosmetic device according to claim 4, characterized in that: The isolation circuit further includes a first switch circuit; The third end of the relay includes a fifth pin and a sixth pin; the fifth pin is used to access the power supply voltage, and the sixth pin is electrically connected to the first end of the first switch circuit; the second end of the first switch circuit is electrically connected to the control circuit, and the third end of the first switch circuit is grounded; The control circuit is used to control the first end and the third end of the first switch circuit to be turned on, so as to control the path between the first end and the second end of the relay to be turned on.

7. The cosmetic device according to claim 2, wherein: The beauty device comprises a conductive component, and the conductive component is used to connect the test voltage or output the driving signal; The isolation circuit comprises an isolation optocoupler; a first end of the isolation optocoupler is electrically connected to the conductive component, a second end of the isolation optocoupler is electrically connected to the drive circuit, and a third end of the isolation optocoupler is electrically connected to the control circuit; The driving circuit is used for outputting a driving signal to the first end of the isolation optical coupler.

8. The cosmetic device according to claim 7, characterized in that: The beauty device further comprises a second switch circuit, and the third end of the isolation optical coupler is electrically connected to the control circuit via the second switch circuit; The first end of the second switch circuit is electrically connected to the third end of the isolation optical coupler, the second end of the second switch circuit is grounded, and the third end of the second switch circuit is electrically connected to the control circuit; The control circuit is used to control the first end and the second end of the second switch circuit to be turned on, so as to control the isolation optical coupler to transmit the driving signal.

9. The cosmetic device according to claim 8, characterized in that: The isolation optical coupler comprises a first optical coupler and a second optical coupler; The first end of the first optical coupler is used to access the power supply voltage, the second end of the first optical coupler is electrically connected to the first end of the second optical coupler, the third end of the first optical coupler is electrically connected to the driving circuit, and the fourth end of the first optical coupler is electrically connected to the conductive component; The second end of the second optical coupler is electrically connected to the first end of the second switch circuit, the third end of the second optical coupler is electrically connected to the drive circuit, and the fourth end of the second optical coupler is electrically connected to the conductive component; The second end of the isolation circuit includes the third end of the first optical coupler and the third end of the second optical coupler.

10. The cosmetic device according to any one of claims 2 to 9, characterized in that: The beauty device also includes a power supply circuit; The power supply circuit is used to output a power supply voltage to the isolation circuit and the working circuit; the control circuit is also used to control the drive circuit to convert the power supply voltage into the drive signal output.

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