Beauty instrument

Abstract

The utility model provides a beauty instrument, which comprises a host and a functional head, and the host and the functional head are detachably connected. The functional head is provided with a connecting terminal and a contact electrode, and the contact electrode is used for making contact with the skin so as to output micro-current to the skin. The host is provided with a control circuit and a detection terminal, the detection terminal is connected with the control circuit, and the detection terminal is used for being electrically connected with the connection terminal when the function head is installed on the host, so that a conductive loop is formed between the control circuit and the contact electrode. Wherein the control circuit is used for detecting the voltage of the detection terminal, and outputting micro current to the contact electrode when determining that the host is connected with the functional head according to the voltage of the detection terminal. The beauty instrument provided by the utility model can solve the technical problem of low automation degree of existing beauty.

Description

Technical Field

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

[0002] Existing essence beauty instruments include a main unit and a beauty accessory (also referred to as a functional head), and the beauty accessory is detachably mounted on the main unit. For example, the beauty accessory is a microcurrent functional head, which is used to release microcurrent to the skin to promote the skin to absorb the essence.

[0003] However, after the micro-current function head is installed on the main unit, the user still needs to operate the physical buttons of the beauty instrument to control the beauty instrument to enter a working mode adapted to the micro-current beauty head. It can be seen that the existing beauty instruments have the problem of low automation. Utility Model Content

[0004] The embodiment of the present application provides a beauty instrument to solve the technical problem of low degree of automation in existing beauty treatments.

[0005] To achieve the above-mentioned purpose, the beauty instrument proposed in the present application includes a main unit and a functional head, and the main unit and the functional head are detachably connected; the functional head is provided with a connecting terminal and a contact electrode, and the contact electrode is used to contact the skin to output a microcurrent to the skin. The main unit is provided with a control circuit and a detection terminal, and the detection terminal is connected to the control circuit. The detection terminal is used to form an electrical connection with the connecting terminal when the functional head is installed on the main unit, so that a conductive loop is formed between the control circuit and the contact electrode. The control circuit is used to detect the voltage of the detection terminal, and when it is determined that the main unit and the functional head are connected according to the voltage of the detection terminal, a microcurrent is output to the contact electrode.

[0006] Optionally, in one embodiment, the control circuit includes a voltage detection terminal and a microcurrent output terminal; the voltage detection terminal is used to detect the voltage of the detection terminal; the microcurrent output terminal is used to output microcurrent to the contact electrode through the detection terminal and the connecting terminal when the functional head is installed on the host; the control circuit is also used to stop outputting microcurrent through the microcurrent output terminal when it is determined that the host and the functional head are disconnected according to the voltage of the detection terminal.

[0007] Optionally, in one embodiment, the control circuit includes a control unit, a voltage detection unit and a microcurrent output unit; the signal input end of the control unit is connected to the output end of the voltage detection unit, and the signal output end of the control unit is connected to the controlled end of the microcurrent output unit; the input end of the voltage detection unit serves as the voltage detection end, and the voltage detection unit is used to output a first electrical signal to the control unit according to the voltage of the detection terminal when the host and the functional head are connected, and to output a second electrical signal to the control unit according to the voltage of the detection terminal when the host and the functional head are disconnected; the control unit is used to output a first control signal to the microcurrent output unit when receiving the first electrical signal, and to output a second control signal to the microcurrent output unit when receiving the second electrical signal; the microcurrent output unit is used to output a microcurrent according to the first control signal, and to stop outputting the microcurrent according to the second control signal.

[0008] Optionally, in one embodiment, the output end of the microcurrent output unit serves as the microcurrent output end; the microcurrent output unit is also used to output a periodic detection electrical signal, and to re-output the periodic detection electrical signal after stopping outputting the microcurrent according to the second control signal.

[0009] Optionally, in one embodiment, the detection terminal includes a first detection terminal and a second detection terminal arranged at intervals, the first detection terminal is connected to the voltage detection terminal, and the second detection terminal is connected to the microcurrent output terminal; wherein, when the functional head is installed on the host, the connecting terminal conducts the path between the first detection terminal and the second detection terminal.

[0010] Optionally, in one embodiment, the connecting terminal includes a first connecting terminal and a second connecting terminal arranged at intervals, and the first connecting terminal and the second connecting terminal are coupled through a current limiting resistor; wherein, when the functional head is installed on the host, the first connecting terminal is electrically connected to the first detection terminal, and the second connecting terminal is electrically connected to the second detection terminal.

[0011] Optionally, in one embodiment, the voltage detection unit includes: a first resistor, a second resistor, a capacitor and a switch tube; the first end of the first resistor is connected to a preset power supply, the second end of the first resistor is connected to the high potential end of the switch tube to form a first node, the first node serves as the output end of the voltage detection unit, the low potential end of the switch tube is grounded, the controlled end of the switch tube is connected to the first end of the second resistor, the second end of the second resistor is connected to the first end of the capacitor to form a second node, the second node serves as the input end of the voltage detection unit, and the second end of the capacitor is grounded.

[0012] Optionally, in one embodiment, the detection terminal is at least partially exposed on the surface of the host, and the voltage detection unit also includes an anti-false touch resistor, one end of the anti-false touch resistor is connected to the controlled end of the switch tube, and the other end of the anti-false touch resistor is grounded.

[0013] Optionally, in one embodiment, the contact electrode includes a first contact electrode and a second contact electrode that are spaced apart; the first contact electrode is coupled to a first connection terminal, and the second contact electrode is coupled to the second connection terminal.

[0014] Optionally, in one embodiment, the contact electrode is provided with one, and the contact electrode is coupled to the connecting terminal; the host is also provided with a handle electrode, the handle electrode is connected to the ground terminal of the microcurrent output unit, and the handle electrode is used to contact the hand to form a conductive loop through the human body and the contact electrode.

[0015] The beauty instrument of this application has at least the following beneficial effects:

[0016] The beauty instrument of the present application sets a detection terminal on the main unit, and determines whether the main unit and the functional head are connected according to the voltage of the detection terminal. When it is determined that the main unit and the functional head are connected, a micro-current is automatically output to the contact electrode on the functional head for contacting the skin, thereby beautifying the skin. That is, after the functional head is installed on the main unit, the user no longer needs to control the beauty instrument to enter the working mode adapted to the micro-current functional head through a physical button, which improves the automation level of the beauty instrument and effectively solves the technical problem of the low automation level of existing beauty products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the beauty instrument of the present application when the main unit and the functional head are not connected;

[0019] Figure 2 This is a structural diagram of an embodiment of the connection between the main unit and the functional head of the beauty instrument of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of another embodiment of the beauty instrument of the present application;

[0021] Figure 4 This is a structural schematic diagram of another embodiment of the beauty instrument of the present application;

[0022] Figure 5 This is a structural schematic diagram of another embodiment of the beauty instrument of the present application;

[0023] Figure 6 This is a structural schematic diagram of another embodiment of the beauty instrument of the present application;

[0024] Figure 7 This is a structural schematic diagram of yet another embodiment of the beauty instrument of the present application.

[0025] Description of Figure Numbers:

[0026] Label name Label name Label name 100 Beauty Instrument P1 First Node 21 Connection Terminals 10 Host P2 Second Node 211 First connection terminal 11 Control Circuit R3 Anti-false touch resistance 212 Second connection terminal 111 Control unit 113 Micro current output unit 22 Contact electrode 112 Voltage detection unit 1131 Micro current output terminal 221 First contact electrode 1121 Voltage detection terminal 114 Handle Electrode 222 Second contact electrode R1 First resistor 12 Detection terminal R4 Current limiting resistor R2 Second resistor 121 First detection terminal Vc power supply C capacitance 122 Second detection terminal Q Switching tube 20 Functional Header

[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0029] At present, the existing essence beauty instrument includes a main unit and a beauty accessory (also called a functional head), and the beauty accessory is detachably mounted on the main unit. For example, the beauty accessory is a microcurrent functional head, which is used to release microcurrent to the skin to promote the skin to absorb essence. However, after the microcurrent functional head is installed on the main unit, the user still needs to operate the physical buttons of the beauty instrument to control the beauty instrument to enter a working mode adapted to the microcurrent beauty head. It can be seen that the existing beauty instruments have the problem of low automation.

[0030] In response to the above technical problems, the present application proposes a beauty instrument, which sets a detection terminal on the main unit of the beauty instrument, and determines whether the main unit and the functional head are connected according to the voltage of the detection terminal. When it is determined that the main unit and the functional head are connected, a micro-current is automatically output to the contact electrode on the functional head for contacting the skin, thereby beautifying the skin. That is, after the functional head is installed on the main unit, the user no longer needs to control the beauty instrument to enter a working mode adapted to the micro-current functional head through a physical button, which improves the automation level of the beauty instrument and effectively solves the technical problem of the low automation level of existing beauty products.

[0031] The beauty instrument provided in the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0032] like Figure 1 As shown, the beauty instrument 100 proposed in the present application includes a host 10 and a functional head 20, and the host 10 and the functional head 20 are detachably connected.

[0033] Specifically, in this embodiment, the host 10 mainly includes a housing, a plurality of components (such as a circuit board, a battery, a radiator, a charging connector, etc.) disposed in the housing, and buttons, indicator lights, etc. disposed on the surface of the housing. When using the beauty instrument 100, the user can hold the host 10 and control and switch the working mode of the beauty instrument 100 by pressing the buttons on the host 10. The size, shape, specific structure, etc. of the host 10 can be flexibly designed according to actual needs, and no specific limitation is made here. For example, the overall shape of the host 10 can be cylindrical, multi-prism, bent cylindrical, or other shapes.

[0034] In order to achieve a variety of different beauty functions, the beauty instrument 100 also includes a variety of function heads 20, such as a massage function head that can simulate massage techniques to massage the skin, a cleaning function head that uses a soft brush or vibrator to clean the skin, a cold compress function head that can achieve cold compress, or a microcurrent function head that uses microcurrent to stimulate skin cell activity, etc.

[0035] Each functional head 20 is configured to be detachably connected to the host 10, and the specific connection method can be a snap connection, a magnetic connection, a threaded connection, etc., as long as the functional head 20 and the host 10 can be stably connected and easily disassembled. It can be understood that by making the functional head 20 and the host 10 detachably connected, the user can choose one of the various functional heads 20 to install and use as needed.

[0036] It should be noted here that the functional head 20 usually includes a shell, a connecting circuit installed in the shell, and special components installed on the shell. The special components of the functional heads 20 with different functions will be different. For example, the special components on the cleaning function head are generally brushes or vibrators, and the special components on the ice compress function head are generally refrigeration parts (such as semiconductor refrigeration plates).

[0037] In order to more clearly introduce the technical solution of the present application, this specification takes the micro-current functional head 20 as an example for explanation. Specifically, in this embodiment, Figure 1 As shown, the functional head 20 is provided with a connection terminal 21 and a contact electrode 22, wherein the connection terminal 21 is used to establish an electrical connection with the host 10 so that the circuit on the functional head 20 is connected to the circuit on the host 10. The specific structure of the connection terminal 21 can be a conductive spring pin, a conductive socket, a fixed conductive connection block, etc. The specific structural form can be flexibly designed according to needs.

[0038] The connecting terminal 21 is connected to the contact electrode 22 through a conductor such as an electric wire or a conductive metal sheet. The contact electrode 22 is exposed on the shell surface of the functional head 20, and the contact electrode 22 is used to contact the skin to output a microcurrent to the skin. The contact electrode 22 can be a metal sheet with a smooth surface, such as a copper sheet, a steel sheet, a gold-plated sheet, etc., and the contact electrode 22 can be made into a spherical shape, which can provide a good touch to the skin. Of course, the contact electrode 22 can also be made of conductive silicone with a relatively soft and conductive material, which can make the contact electrode 22 more friendly to the skin and enhance the experience.

[0039] It should be noted that the number of contact electrodes 22 can be flexibly designed as required. Figures 1 to 4 As shown in any of the figures, there is one contact electrode 22 , and the contact electrode 22 is coupled to two connection terminals 21 respectively, and the two connection terminals 21 are connected by electrical wires.

[0040] It should be noted that when only one contact electrode 22 is provided on the functional head 20, Figure 4 or Figure 5 As shown, the host 10 is also provided with a handle electrode 114 , which is connected to the ground terminal of the microcurrent output unit 113 , and the handle electrode 114 is exposed on the surface of the host 10 so as to contact the user's hand when the user holds the host 10 .

[0041] Therefore, it can be understood that when the user holds the host 10, the user's hand comes into contact with the handle electrode 114. When the user further makes the contact electrode 22 on the functional head 20 contact the face, the contact electrode 22 and the handle electrode 114 can form a microcurrent circuit through the human body to realize the introduction function.

[0042] Or, if Figure 6 or Figure 7 As shown, the contact electrode 22 may also include two, namely a first contact electrode 221 and a second contact electrode 222. The first contact electrode 221 and the second contact electrode 222 are arranged at an interval. When in use, the first contact electrode 221 and the second contact electrode 222 use the skin as a conductor to achieve circuit conduction. When the microcurrent flows through the skin, it stimulates the skin cells, thereby improving the skin.

[0043] Of course, the number of the contact electrodes 22 can also be designed to be three, four, five or more as needed, and the specific number can be flexibly designed as needed.

[0044] like Figure 1As shown, in order to improve the automation of the beauty instrument 100, a control circuit 11 and a detection terminal 12 are provided on the host 10, and the detection terminal 12 is connected to the control circuit 11. The detection terminal 12 is used to form an electrical connection with the connection terminal 21 when the functional head 20 is installed on the host 10, so that a conductive loop is formed between the control circuit 11 and the contact electrode 22. Among them, the control circuit 11 is used to detect the voltage of the detection terminal 12, and when it is determined that the host 10 and the functional head 20 are connected according to the voltage of the detection terminal 12, a microcurrent is output to the contact electrode 22.

[0045] Specifically, in this embodiment, reference may be made to Figure 2 The detection terminal 12 is used to electrically connect with the connection terminal 21 on the functional head 20. Therefore, the structural form of the detection terminal 12 can be designed to adapt to the connection terminal 21. For example, when the connection terminal 21 is a retractable conductive spring pin, the detection terminal 12 can be a conductive connection block fixed on the host 10. When the functional head 20 is installed on the host 10, the connection terminal 21 and the detection terminal 12 contact each other, thereby achieving electrical connection.

[0046] The control circuit 11 is encapsulated in the housing of the host 10, and is mainly responsible for controlling and managing various functions and operations of the beauty instrument 100 to ensure that the beauty instrument 100 can work according to the parameters and requirements set by the user and provide a safe and effective skin care experience.

[0047] Specifically, in this embodiment, if Figure 2 As shown, the detection terminal 12 is electrically connected to the control circuit 11 through conductors such as wires and metal conductive sheets. Therefore, when the functional head 20 is installed on the host 10, the connecting terminal 21 on the functional head 20 and the detection terminal 12 on the host 10 are electrically connected, a conductive loop is formed between the control circuit 11 and the contact electrode 22, thereby providing a microcurrent to the contact electrode 22.

[0048] It should be noted that, in the present embodiment, the control circuit 11 is at least used to detect the voltage of the detection terminal 12 , so as to determine whether the functional head 20 is installed on the host 10 according to the voltage of the detection terminal 12 .

[0049] Specifically, Figure 3As shown, the control circuit 11 may be provided with a voltage detection terminal 1121, which is connected or coupled to the detection terminal 12 for detecting the voltage of the detection terminal 12. When the functional head 20 is not installed on the host 10, the control circuit 11 may detect and record the voltage of the detection terminal 12; and when the functional head 20 is installed on the host 10, the detection terminal 12 and the connection terminal 21 are electrically connected, and the control circuit 11 and the contact electrode 22 form a conductive loop. At this time, the voltage of the detection terminal 12 changes, for example, the voltage of the detection terminal 12 changes from a high level to a low level. At this time, the control circuit 11 also detects and records the voltage of the detection terminal 12.

[0050] Accordingly, during the use of the beauty instrument 100, when the control circuit 11 detects that the voltage of the detection terminal 12 is at a high level, it can be determined that the functional head 20 is not installed on the host 10; when the control circuit 11 detects that the voltage of the detection terminal 12 becomes a low level, it can be determined that the functional head 20 has been installed on the host 10.

[0051] In this embodiment, when the control circuit 11 determines that the host 10 and the functional head 20 are connected according to the voltage of the detection terminal 12, it also outputs a micro current to the contact electrode 22. Figure 3 As shown, the control circuit 11 may be provided with a micro-current output terminal 1131, and the micro-current output terminal 1131 is connected to the detection terminal 12. When the control unit 111 determines that the host 10 and the functional head 20 are connected according to the voltage of the detection terminal 12, the micro-current output terminal 1131 is controlled to output micro-current to the contact electrode 22 through the detection terminal 12 and the connection terminal 21. At this time, the beauty instrument 100 can be used directly, and the user does not need to perform any button operation, which improves the automation degree of the beauty instrument 100 and effectively solves the technical problem of the low degree of automation of existing beauty products.

[0052] Optionally, in one embodiment, the control circuit 11 is also used to stop outputting microcurrent through the microcurrent output terminal 1131 when it is determined that the host 10 and the functional head 20 are disconnected according to the voltage of the detection terminal 12. Specifically, in this embodiment, when the user uses the beauty instrument 100 and removes the functional head 20 from the host 10, the control circuit 11 detects that the voltage of the detection terminal 12 changes from a low level to a high level. At this time, the control circuit 11 can determine that the functional head 20 is disconnected from the host 10, and the control circuit 11 stops outputting microcurrent through the current output terminal. In other words, after the user removes the functional head 20 from the host 10, there is no need to perform any key operation to turn off the host 10. The control circuit 11 of the host 10 will automatically stop the output of microcurrent, further improving the automation of the beauty instrument 100 and making it more convenient for users to use.

[0053] Regarding the specific structure of the control circuit 11, optionally, in one embodiment, as Figure 4 As shown, the control circuit 11 includes a control unit 111 , a voltage detection unit 112 and a micro-current output unit 113 .

[0054] The control unit 111 may be an embedded control chip, and the signal input end of the control unit 111 is connected to the output end of the voltage detection unit 112 , and the signal output end of the control unit 111 is connected to the controlled end of the microcurrent output unit 113 .

[0055] The input end of the voltage detection unit 112 serves as the voltage detection terminal 1121. As mentioned above, the voltage detection terminal 1121 is connected to the detection terminal 12, and the voltage detection unit 112 is used to output a first electrical signal to the control unit 111 according to the voltage of the detection terminal 12 when the host 10 and the functional head 20 are connected, and to output a second electrical signal to the control unit 111 according to the voltage of the detection terminal 12 when the host 10 and the functional head 20 are disconnected.

[0056] Specifically, Figure 6 As shown, in this embodiment, the voltage detection unit 112 includes: a first resistor R1, a second resistor R2, a capacitor C and a switch tube Q. The first end of the first resistor R1 is connected to a preset power supply Vc, the second end of the first resistor R1 is connected to the high potential end of the switch tube Q to form a first node P1, and the first node P1 is used as the output end of the voltage detection unit 112, that is, the input end of the control unit 111 is connected to the first node P1. The low potential end of the switch tube Q is grounded, the controlled end of the switch tube Q is connected to the first end of the second resistor R2, the second end of the second resistor R2 is connected to the first end of the capacitor C to form a second node P2, the second node P2 is used as the input end of the voltage detection unit 112, that is, the detection terminal 12 is connected to the second node P2, and the second end of the capacitor C is grounded.

[0057] It can be understood that when the functional head 20 is not installed on the host 10, that is, the connection terminal 21 on the functional head 20 and the detection terminal 12 on the host 10 are not connected, the voltage detection unit 112 outputs a first electrical signal to the control unit 111 through the first node P1, and the first electrical signal is at a high level at this time. When the functional head 20 is installed on the host 10, that is, the connection terminal 21 on the functional head 20 and the detection terminal 12 on the host 10 are electrically connected, the entire control circuit 11 (including the control unit 111, the voltage detection unit 112 and the micro-current output unit 113) forms a conductive loop with the contact electrode 22 through the detection terminal 12 and the connection terminal 21. At this time, the micro-current output unit 113 can be used to output a detection electrical signal, and the detection electrical signal is applied to the controlled end of the switch tube Q through the conductive loop. After the switch tube Q is turned on, the voltage of the first node P1 is pulled down, and the voltage of the first node P1 changes from a high level to a low level. That is, the voltage detection unit 112 outputs a second electrical signal to the control unit 111 through the first node P1, and the second electrical signal is at a low level.

[0058] Therefore, when the control unit 111 receives the first electrical signal, it can be determined that the functional head 20 has been installed on the host 10, and when the control unit 111 receives the second electrical signal, it can be determined that the functional head 20 has been removed from the host 10. Accordingly, the control unit 111 can control the microcurrent output unit 113 to output microcurrent or stop outputting microcurrent.

[0059] Specifically, the control unit 111 is used to output a first control signal to the microcurrent output unit 113 when receiving a first electrical signal, and to output a second control signal to the microcurrent output unit 113 when receiving a second electrical signal. The microcurrent output unit 113 is used to output a microcurrent according to the first control signal, and to stop outputting a microcurrent according to the second control signal.

[0060] Specifically, when the control unit 111 receives the first electrical signal, it indicates that the functional head 20 has been installed on the host 10. At this time, the control unit 111 outputs the first control signal to the microcurrent output unit 113, and the microcurrent output unit 113 outputs microcurrent according to the first control signal. At this time, the user can directly start using the beauty instrument 100 without performing any button operations.

[0061] When the control unit 111 receives the second electrical signal, it indicates that the functional head 20 and the host 10 have been disconnected. At this time, the control unit 111 outputs a second control signal to the microcurrent, and the microcurrent output unit 113 stops outputting the microcurrent according to the second control signal. The user does not need to perform any key operation to control the host 10 to stop outputting the microcurrent.

[0062] Optionally, in one embodiment, the output end of the microcurrent output unit 113 serves as a microcurrent output end 1131. As described above, the microcurrent output end 1131 is electrically connected to the detection terminal 12 (specifically, it is electrically connected to the second detection terminal 122). The microcurrent output unit 113 is also used to output a periodic detection electrical signal, and after stopping the output of the microcurrent according to the second control signal, re-output the periodic detection electrical signal. That is, whether the beauty instrument 100 is in the on state or in the standby state, the microcurrent output unit 113 will output a periodic detection electrical signal. For example, the microcurrent output unit 113 can output a detection electrical signal every 100ms (milliseconds) to timely detect whether the functional head 20 and the host 10 are connected.

[0063] For details, please refer to Figure 6 When the functional head 20 is not installed on the host 10, that is, the connecting terminal 21 and the detection terminal 12 are not connected, the periodic detection electrical signal output by the microcurrent output unit 113 cannot be transmitted to the switch tube Q, and the switch tube Q cannot be turned on. At this time, the voltage detection unit 112 outputs the first electrical signal (that is, a high level) to the control unit 111 through the first node P1, and then the control unit 111 can determine that the functional head 20 and the host 10 are not connected, so that the microcurrent output unit 113 can be controlled in time to stop outputting microcurrent.

[0064] When the functional head 20 is installed on the host 10, that is, the connecting terminal 21 and the detection terminal 12 are electrically connected, the periodic detection electrical signal output by the microcurrent output unit 113 can be transmitted to the switch tube Q through the detection terminal 12 and the connecting terminal 21. The switch tube Q is turned on. At this time, the voltage detection unit 112 outputs a second electrical signal (i.e., a low level) to the control unit 111 through the first node P1, and then the control unit 111 can determine that the functional head 20 and the host 10 are connected, so that the microcurrent output unit 113 can be controlled to output microcurrent in time.

[0065] Therefore, it can be understood that this embodiment enables the microcurrent output unit 113 to output a periodic detection electrical signal, so that it can timely detect whether the functional head 20 and the host 10 are connected, thereby avoiding the situation where the microcurrent is not output in time when the functional head 20 and the host 10 are connected, and avoiding the situation where the microcurrent is still output when the functional head 20 and the host 10 are disconnected.

[0066] Optionally, in one embodiment, as Figure 5As shown, the detection terminal 12 includes a first detection terminal 121 and a second detection terminal 122 arranged at intervals, the first detection terminal 121 is connected to the voltage detection terminal 1121 of the voltage detection unit 112, and the second detection terminal 122 is connected to the micro-current output terminal 1131 of the micro-current output unit 113. When the functional head 20 is installed on the host 10, the connection terminal 21 conducts the path between the first detection terminal 121 and the second detection terminal 122, so that the entire control circuit 11 and the contact electrode 22 form a conductive loop.

[0067] Optionally, in one embodiment, as Figure 5 As shown, the connection terminal 21 includes a first connection terminal 211 and a second connection terminal 212 which are spaced apart, and the first connection terminal 211 and the second connection terminal 212 are coupled via a current limiting resistor R4; wherein, when the functional head 20 is installed on the host 10, the first connection terminal 211 is electrically connected to the first detection terminal 121, and the second connection terminal 212 is electrically connected to the second detection terminal 122, and at this time, the first detection terminal 121 and the second detection terminal 122 are connected via the first connection terminal 211 and the second connection terminal 212.

[0068] like Figure 6 As shown, the contact electrode 22 includes a first contact electrode 221 and a second contact electrode 222 which are spaced apart from each other. The first contact electrode 221 is coupled to the first connection terminal 211, and the second contact electrode 222 is coupled to the second connection terminal 212. When the first connection terminal 211 is electrically connected to the first detection terminal 121, and the second connection terminal 212 is electrically connected to the second detection terminal 122, the contact electrode 22 forms a conductive loop with the control circuit 11.

[0069] It should be noted here that in order to enable current to flow through the first contact electrode 221 and the second contact electrode 222 when the contact electrode 22 forms a conductive loop with the control circuit 11, a current-limiting resistor R4 is coupled between the first connection terminal 211 and the second connection terminal to limit the current between the first connection terminal 211 and the second connection terminal 212.

[0070] Optionally, in one embodiment, as Figure 7 As shown, the detection terminal 12 is at least partially exposed on the surface of the host 10, and the voltage detection unit 112 also includes an anti-false touch resistor R3, one end of the anti-false touch resistor R3 is connected to the controlled end of the switch tube Q, and the other end of the anti-false touch resistor R3 is grounded.

[0071] Specifically, in the present embodiment, the detection terminal 12 includes a first detection terminal 121 and a second detection terminal 122, and both the first detection terminal 121 and the second detection terminal 122 are exposed on the surface of the host 10. In this case, if the user's hand touches the first detection terminal 121 and the second detection terminal 122 at the same time, the first detection terminal 121 and the second detection terminal 122 will be turned on. At this time, the host 10 may output a microcurrent when the functional head 20 is not installed, resulting in a risk of leakage or power loss.

[0072] Therefore, in order to avoid the above situation, in this embodiment, the voltage detection unit 112 also includes an anti-false touch resistor R3, one end of the anti-false touch resistor R3 is connected to the controlled end of the switch tube Q, and the other end of the anti-false touch resistor R3 is grounded. It can be understood that after the anti-false touch resistor R3 is added, the conduction threshold of the switch tube Q will be raised. When the user's hand turns on the first detection terminal 121 and the second detection terminal 122, the switch tube Q will not be turned on. The control unit 111 does not detect the corresponding level signal, so it will not determine that the function head 20 has been installed on the host 10, and will not output a micro-current, thereby playing a role in preventing false touches.

[0073] In the above embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. In the description of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0074] The beauty instrument provided in the embodiment of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A beauty instrument, characterized in that: include: A host and a functional head, wherein the host and the functional head are detachably connected; The functional head is provided with a connection terminal and a contact electrode, and the contact electrode is used to contact the skin to output microcurrent to the skin; The host is provided with a control circuit and a detection terminal, the detection terminal is connected to the control circuit, and the detection terminal is used to form an electrical connection with the connection terminal when the functional head is installed on the host, so that a conductive loop is formed between the control circuit and the contact electrode; The control circuit is used to detect the voltage of the detection terminal, and when it is determined that the host and the functional head are connected according to the voltage of the detection terminal, output a micro current to the contact electrode.

2. The beauty instrument according to claim 1, characterized in that: The control circuit includes a voltage detection terminal and a micro-current output terminal; The voltage detection end is used to detect the voltage of the detection terminal; The micro-current output terminal is used to output micro-current to the contact electrode through the detection terminal and the connection terminal when the functional head is installed on the host; The control circuit is also used to stop outputting the microcurrent through the microcurrent output terminal when it is determined that the host and the functional head are disconnected based on the voltage of the detection terminal.

3. The beauty instrument according to claim 2, characterized in that: The control circuit includes a control unit, a voltage detection unit and a micro-current output unit; The signal input end of the control unit is connected to the output end of the voltage detection unit, and the signal output end of the control unit is connected to the controlled end of the micro-current output unit; The input end of the voltage detection unit serves as the voltage detection end, and the voltage detection unit is used to output a first electrical signal to the control unit according to the voltage of the detection terminal when the host and the function head are connected, and to output a second electrical signal to the control unit according to the voltage of the detection terminal when the host and the function head are disconnected; The control unit is configured to output a first control signal to the microcurrent output unit when receiving the first electrical signal, and output a second control signal to the microcurrent output unit when receiving the second electrical signal; The microcurrent output unit is used to output the microcurrent according to the first control signal, and stop outputting the microcurrent according to the second control signal.

4. The beauty instrument according to claim 3, characterized in that: The output end of the micro-current output unit serves as the micro-current output end; The microcurrent output unit is further used to output a periodic detection electrical signal, and after stopping outputting the microcurrent according to the second control signal, re-output the periodic detection electrical signal.

5. The beauty instrument according to claim 4, characterized in that: The detection terminal includes a first detection terminal and a second detection terminal arranged at intervals, the first detection terminal is connected to the voltage detection terminal, and the second detection terminal is connected to the micro-current output terminal; wherein, when the functional head is installed on the host, the connecting terminal conducts the path between the first detection terminal and the second detection terminal.

6. The beauty instrument according to claim 5, characterized in that: The connecting terminals include a first connecting terminal and a second connecting terminal which are spaced apart, and the first connecting terminal and the second connecting terminal are coupled via a current limiting resistor; wherein, when the functional head is installed on the host, the first connecting terminal is electrically connected to the first detection terminal, and the second connecting terminal is electrically connected to the second detection terminal.

7. The beauty instrument according to claim 3, characterized in that: The voltage detection unit includes: a first resistor, a second resistor, a capacitor and a switch tube; The first end of the first resistor is connected to a preset power supply, the second end of the first resistor is connected to the high potential end of the switch tube to form a first node, the first node serves as the output end of the voltage detection unit, the low potential end of the switch tube is grounded, the controlled end of the switch tube is connected to the first end of the second resistor, the second end of the second resistor is connected to the first end of the capacitor to form a second node, the second node serves as the input end of the voltage detection unit, and the second end of the capacitor is grounded.

8. The beauty instrument according to claim 7, characterized in that: The detection terminal is at least partially exposed on the surface of the host, and the voltage detection unit also includes an anti-false touch resistor, one end of the anti-false touch resistor is connected to the controlled end of the switch tube, and the other end of the anti-false touch resistor is grounded.

9. The beauty instrument according to claim 6, characterized in that: The contact electrode comprises a first contact electrode and a second contact electrode which are spaced apart from each other; The first contact electrode is coupled to the first connection terminal, and the second contact electrode is coupled to the second connection terminal.

10. The beauty instrument according to claim 3, characterized in that: The contact electrode is provided with one, and the contact electrode is coupled to the connection terminal; The host is also provided with a handle electrode, which is connected to the ground terminal of the microcurrent output unit, and is used to contact the hand to form a conductive loop through the human body and the contact electrode.

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