Beauty device head recognition circuit and beauty device

Abstract

This utility model discloses a beauty head recognition circuit and a beauty device. The beauty device includes a main unit and a beauty head detachably mounted on the main unit. The main unit is equipped with an electroacupuncture assembly for interfacing with the beauty head. The beauty head recognition circuit includes a microcontroller module and several recognition modules. One end of each recognition module is connected to an electroacupuncture pin in the electroacupuncture assembly, and the other end is connected to the input port of the microcontroller module. When no beauty head is installed on the main unit, none of the electroacupuncture pins connected to the recognition modules are grounded. When the beauty head is installed on the main unit, at least one electroacupuncture pin connected to the recognition module is grounded, so that the level signal provided by the recognition module to the microcontroller module is different from that when no beauty head is installed. The microcontroller module can thus reliably identify the access status of the beauty head based on the level signals provided by the several recognition modules.

Description

Technical Field

[0001] This utility model relates to the field of circuit technology, and in particular to a beauty head recognition circuit for a beauty device and the beauty device itself. Background Technology

[0002] Beauty devices in related technologies typically include a head and a main unit. The head is located at one end of the main unit and is equipped with electrodes for cosmetic purposes or a light-transmitting window for emitting light. The cosmetic light emitted by the main unit acts on the user's skin through the light-transmitting window to achieve a cosmetic effect. However, the heads of most beauty devices are non-removable and non-replaceable, so their functions are usually relatively limited and cannot provide diversified services to meet people's needs.

[0003] Currently, more and more beauty devices are equipped with replaceable beauty heads. How the main unit of the beauty device can reliably identify the connection status of the beauty head has become an important problem that needs to be solved. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a beauty head recognition circuit and beauty device that can reliably identify the connection status of the beauty head.

[0005] In a first aspect, this utility model provides a beauty head recognition circuit for a beauty device. The beauty device includes a main unit and a beauty head that can be detachably installed on the main unit. The main unit is provided with an electroacupuncture assembly for docking with the beauty head. The beauty head recognition circuit includes a microcontroller module and several recognition modules. One end of the recognition module is connected to an electroacupuncture pin in the electroacupuncture assembly, and the other end is connected to the input port of the microcontroller module; when the beauty head is installed on the host, at least one electroacupuncture pin connected to the recognition module is grounded; The microcontroller module is used to determine the access status of the beauty head based on the level signals provided by the identification modules.

[0006] The beauty head recognition circuit of the beauty device provided according to the embodiment of this utility model has at least the following beneficial effects: when no beauty head is installed in the main unit, the needle pins connected to all recognition modules are not grounded; when a beauty head is installed in the main unit, at least one needle pin connected to the recognition module is grounded, so that the level signal provided by the recognition module to the microcontroller is different from that when no beauty head is installed; therefore, the microcontroller can determine whether a beauty head is installed in the main unit based on whether there is a difference in the level signals provided by several recognition modules, and can also determine the type of beauty head based on the combination of multiple level signals; the beauty head recognition circuit of this beauty device can reliably identify the access status of the beauty head.

[0007] According to some embodiments of the present invention, the beauty head recognition circuit includes a pull-up resistor, an input resistor, and a diode. One end of the pull-up resistor is connected to a DC power supply terminal, the other end of the pull-up resistor is connected to the anode of the diode and one end of the input resistor, the cathode of the diode is connected to an electro-needle pin of the electro-needle assembly, and the other end of the input resistor is connected to the input port of the microcontroller module.

[0008] In this embodiment, when no beauty head is installed on the main unit, the power signal provided by the DC power supply terminal in each identification module is connected to the input port of the microcontroller module through a pull-up resistor and an input resistor, so that the input port of the microcontroller module receives a high-level signal. Therefore, when the microcontroller module obtains a high-level signal at the input port of each identification module, it can be determined that no beauty head is installed on the main unit. When the beauty head is installed on the main unit, the cathode of the diode is connected to the ground pin, that is, the power signal provided by the DC power supply terminal is grounded through the pull-up resistor and the diode, and the anode of the diode provides a low-level signal to the input port of the microcontroller module through the input resistor. Therefore, when the microcontroller module obtains a low-level signal at the input port of each identification module, it can be determined that a beauty head is installed on the main unit. Furthermore, different types of beauty heads can be set to trigger the grounding of the ground pin of the diode corresponding to the cathode of different identification modules, so that the microcontroller module can identify different types of beauty heads based on the combination of level signals from several input ports. The beauty head identification circuit of this beauty device can reliably identify the access status of the beauty head.

[0009] According to some embodiments of the present invention, the beauty head recognition circuit has a pull-up resistor whose resistance value is determined based on the voltage value of the DC power supply terminal, the level recognition threshold voltage value of the input port of the microcontroller module, and a preset resistance value. in: When the voltage value received at the input port of the microcontroller module is greater than the level recognition threshold voltage value, the microcontroller module determines that a high-level signal has been received. The preset resistance value is the equivalent grounding resistance value when the needle pin connected to the cathode of the diode is grounded through the skin care product present on the needle assembly.

[0010] According to some embodiments of the present invention, the ratio of the voltage value of the DC power supply terminal to the level recognition threshold voltage value is greater than the ratio obtained by dividing the sum of the pull-up resistor and the equivalent grounding resistance value by the equivalent grounding resistance value.

[0011] According to some embodiments of the present invention, the beauty head recognition circuit includes a recognition module that further includes a filter capacitor, one end of which is connected to the anode of the diode, and the other end of which is grounded.

[0012] According to some embodiments of the present invention, the beauty head recognition circuit includes an ESD diode, one end of which is connected to the connection point of the input resistor and the pull-up resistor, and the other end of which is grounded.

[0013] According to some embodiments of the present invention, the beauty head recognition circuit has two recognition modules.

[0014] Secondly, this utility model provides a beauty device, including a main unit and a beauty head detachably installed on the main unit, wherein the main unit includes the beauty head recognition circuit as described in the first aspect embodiment above.

[0015] According to some embodiments of the present invention, the beauty device includes a first identification module and a second identification module, and the beauty head includes a first beauty head and a second beauty head. When the first beauty head is installed on the host, the needle pin connected to the first recognition module is grounded, and the needle pin connected to the second recognition module is left floating. The microcontroller receives a low level and a high level respectively at the input ports of the first recognition module and the second recognition module, and then activates the first mode. When the second beauty head is installed on the main unit, the needle pin connected to the first identification module is left floating, and the needle pin connected to the second identification module is grounded. The microcontroller receives high and low levels at the input ports of the first and second identification modules respectively, and activates the second mode.

[0016] According to some embodiments of the present invention, when no beauty head is installed on the main unit, the electroacupuncture pin connected to the identification module is suspended, and the microcontroller receives a high level at the input port corresponding to the identification module, thus activating the third mode.

[0017] According to some embodiments of the present invention, the beauty device further includes a grounded electroacupuncture pin. When the beauty head is installed on the main unit, the beauty head short-circuits the grounded electroacupuncture pin with the electroacupuncture pin connected to the identification module.

[0018] According to some embodiments of the present invention, the beauty device further includes a microcurrent needle pin for providing microcurrent to the beauty head and a lamp power needle pin for providing power to the ambient light of the beauty head.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a structural schematic diagram of the overall appearance of the main unit of the beauty device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the beauty head of the beauty device provided in this embodiment of the utility model; Figure 3 This is a circuit diagram of the beauty head recognition circuit provided in this embodiment of the utility model; Figure 4 This is an equivalent circuit diagram of the beauty head recognition circuit provided in this embodiment of the invention when skin care products are present on the electroacupuncture component; Figure 5 This is a schematic diagram of the working process of the beauty device provided in this embodiment of the utility model. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of the embodiments of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number, while "above," "below," "within," etc. are understood to include the stated number. "At least one" refers to one or more, and "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or multiple items. If "first," "second," etc., are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0024] It should be noted that the terms "setting," "installing," and "connecting" in the embodiments of this utility model should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in the embodiments of this utility model in conjunction with the specific content of the technical solution. For example, the term "connection" can be a mechanical connection, an electrical connection, or a connection that allows for mutual communication; it can be a direct connection or an indirect connection through an intermediate medium.

[0025] It should be noted that the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Beauty devices in related technologies typically include a head and a main unit. The head is located at one end of the main unit and is equipped with electrodes for cosmetic purposes or a light-transmitting window for emitting light. The cosmetic light emitted by the main unit acts on the user's skin through the light-transmitting window to achieve a cosmetic effect. However, most beauty devices have non-removable and non-replaceable heads, thus their functions are usually relatively limited and cannot provide services to meet diverse needs. Currently, more and more beauty devices have replaceable beauty heads, and how the main unit can reliably identify the connection status of the beauty head has become an important problem that needs to be solved.

[0027] Based on this, the present invention provides a beauty head recognition circuit and a beauty device, which can reliably identify the connection status of the beauty head 200 and prevent abnormal beauty head recognition caused by skin care products getting into the connection between the main unit of the beauty device and the beauty head.

[0028] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0029] Figure 1 This is a structural schematic diagram of the overall appearance of the main unit 100 of the beauty device provided in this embodiment of the utility model; Figure 2 This is a structural schematic diagram of the beauty head 200 of the beauty device provided in this embodiment of the utility model. (Refer to...) Figure 1 and Figure 2 The beauty device includes a main unit 100 and a beauty head 200 detachably mounted on the main unit 100. The main unit 100 is equipped with an electroacupuncture assembly 110 for interfacing with the beauty head 200. The main unit 100 can power, control, and identify the beauty head 200 through the electroacupuncture assembly 110, for example, by powering the electrodes or ambient light on the beauty head 200 through the electroacupuncture assembly 110, and by identifying the connection status of the beauty head 200 through the electroacupuncture assembly 110. For example, as... Figure 1As shown, the electroacupuncture assembly 110 may include six electroacupuncture pins, namely electroacupuncture pin PIN1, electroacupuncture pin PIN2, electroacupuncture pin PIN3, electroacupuncture pin PIN4, electroacupuncture pin PIN5 and electroacupuncture pin PIN6. Among them, electroacupuncture pin PIN1 and electroacupuncture pin PIN5 are used to identify the connection status of the beauty head 200; electroacupuncture pin PIN2 is used to provide ambient light power supply voltage; electroacupuncture pin PIN3 is used for grounding; and electroacupuncture pin PIN4 and electroacupuncture pin PIN6 are used to provide microcurrent to the electrodes on the beauty head 200.

[0030] Figure 3 This is a circuit diagram of the beauty head recognition circuit provided in an embodiment of this utility model. (Refer to...) Figure 3 The first aspect of this utility model provides a beauty head recognition circuit for a beauty device, the beauty head recognition circuit including a microcontroller module 300 and a plurality of recognition modules 400; specifically: One end of the identification module 400 is connected to an electroacupuncture pin in the electroacupuncture assembly 110, and the other end is connected to the input port of the microcontroller module 300; when the beauty head 200 is installed on the main unit 100, at least one electroacupuncture pin to which the identification module 400 is connected is grounded; exemplarily, Figure 3 The beauty head recognition circuit shown has two recognition modules 400. One end of one recognition module 400 is connected to the electric needle pin PIN1, and the other end is connected to the input port IO1 of the microcontroller module 300. The other recognition module 400 is connected to the electric needle pin PIN5, and the other end is connected to the input port IO2 of the microcontroller module 300. The microcontroller module 300 is used to determine the access status of the beauty head 200 based on the level signals provided by several identification modules 400. In other words, the microcontroller module 300 can determine the access status of the beauty head 200 based on the level signals obtained from the input port IO1 and the input port IO2.

[0031] According to the beauty head recognition circuit of the beauty device provided in this embodiment, when no beauty head 200 is installed in the main unit 100, the needle pins connected to all recognition modules 400 are not grounded; when a beauty head 200 is installed in the main unit 100, at least one needle pin connected to the recognition module 400 is grounded, so that the level signal provided by the recognition module 400 to the microcontroller 300 is different from that when no beauty head 200 is installed; therefore, the microcontroller 300 can determine whether a beauty head 200 is installed in the main unit 100 based on whether the level signals provided by several recognition modules 400 are different, and can also determine the type of beauty head 200 based on the combination of multiple level signals; the beauty head recognition circuit of this beauty device can reliably identify the access status of the beauty head 200.

[0032] Continue to refer to Figure 3 In the beauty head recognition circuit provided in some embodiments of this utility model, the recognition module 400 includes a pull-up resistor R1, an input resistor R2 and a diode D1. One end of the pull-up resistor R1 is connected to the DC power supply terminal VCC, and the other end of the pull-up resistor R1 is connected to the anode of the diode D1 and one end of the input resistor R2. The cathode of the diode D1 is connected to a needle pin of the needle assembly 110, and the other end of the input resistor R2 is connected to the input port of the microcontroller module 300.

[0033] In this embodiment, when no beauty head 200 is installed on the host 100, in each identification module 400, the power signal provided by the DC power supply terminal VCC is connected to the input port of the microcontroller module 300 through the pull-up resistor R1 and the input resistor R2, so that the input port of the microcontroller module 300 receives a high-level signal; therefore, when the microcontroller module 300 obtains a high-level signal at the input port of each identification module 400, it can be determined that no beauty head 200 is installed on the host 100; when the beauty head 200 is installed on the host 100, the cathode of the diode D1 is connected to the needle pin grounded, that is, the power signal provided by the DC power supply terminal is grounded through the pull-up resistor R1 and the diode D1. The anode of diode D1 provides a low-level signal to the input port of microcontroller module 300 through input resistor R2. Therefore, when microcontroller module 300 receives a low-level signal at the input port of each identification module 400, it can be determined that the host 100 is equipped with a beauty head 200. Furthermore, different types of beauty heads 200 can be configured to trigger the grounding of the electrode pin connected to the cathode of diode D1 corresponding to different identification modules 400, thereby enabling microcontroller module 300 to identify different types of beauty heads 200 based on the combination of level signals from several input ports. The beauty head identification circuit of this beauty device can reliably identify the access status of the beauty head 200.

[0034] When using a beauty device, users often apply skincare products such as gels, serums, and masks to parts of their body, such as their face, and then press the device onto the areas where the products have been applied to promote absorption. As a result, some skincare products often end up at the connection point between the device's main unit and the beauty head, affecting the reliability of the device's recognition of the beauty head's connection. This can even affect the device's power supply and control over the beauty head.

[0035] Therefore, in the beauty head recognition circuit provided in some embodiments of this utility model, the resistance value of the pull-up resistor R1 is used to identify the critical voltage value based on the voltage value of the DC power supply terminal VCC and the level of the input port of the microcontroller module 300. Determined by the preset resistance value R3; in: When the voltage value received at the input port of the microcontroller module 300 is greater than the level recognition threshold voltage value The microcontroller module 300 determines that a high-level signal has been received. It is understandable that the voltage value of the signal received at the input port of the microcontroller module 300 is unstable. The microcontroller module 300 identifies the voltage value of the received signal by comparing it with a level recognition threshold voltage value. By comparison, the voltage value of the received signal is greater than the level identification threshold voltage value. In the case of a high-level signal being received, if the voltage value of the received signal is less than the level recognition threshold voltage value... In this case, it is determined that a low-level signal has been received, thereby dividing the voltage value of the received signal into a high-level signal and a low-level signal.

[0036] The preset resistance value R3 is the equivalent grounding resistance value when the cathode of diode D1 is connected to the needle pin and grounded through the skin care product present on the needle assembly 110. That is, the cathode of diode D1 is not directly grounded, but grounded through the equivalent resistance R3. In this case, the equivalent circuit diagram of the beauty head recognition circuit when skin care product is present on the needle assembly 110 can be found by referring to... Figure 4 As shown, neglecting the diode voltage drop of D1, the voltage value of the signal provided by the identification module 400 to the microcontroller module 300 is the voltage division value of the pull-up resistor R1 and the equivalent resistor R3 to the DC power supply terminal VCC.

[0037] In this embodiment, the critical voltage value is identified based on the voltage value of the DC power supply terminal VCC and the level of the input port of the microcontroller module 300. The value of the pull-up resistor R1 is determined by the preset resistance value R3, ensuring that the voltage value of the signal received by the microcontroller module 300 is greater than and less than the level recognition threshold voltage value when skincare product is present and absent on the electroacupuncture assembly 110, respectively. This allows us to distinguish between situations where skincare products are present on the electroacupuncture component 110 and situations where skincare products are not present.

[0038] In some embodiments of the beauty head recognition circuit provided by this utility model, the voltage value of the DC power supply terminal VCC is related to the level recognition threshold voltage value. The ratio of the pull-up resistor R1 to the equivalent grounding resistance R3 is greater than the ratio obtained by dividing the sum of the pull-up resistor R1 and the equivalent grounding resistance R3 by the equivalent grounding resistance R3. That is, it satisfies the following formula: ; It is understandable that the above formula can be transformed to obtain: ; in, That's right Figure 4The voltage division value of the equivalent resistor R3 in the equivalent circuit diagram shown is the voltage value of the signal provided by the identification module 400 to the microcontroller module 300. Therefore, in this embodiment, when there is skin care product on the electroacupuncture assembly 110, the signal received by the microcontroller module 300 is a high-level signal; when there is no skin care product on the electroacupuncture assembly 110, and the cathode of diode D1 is directly grounded, the signal received by the microcontroller module 300 is a low-level signal. The microcontroller module 300 can then stop supplying power to the beauty head 200 or stop sending control signals to the beauty head 200 when there is skin care product on the electroacupuncture assembly 110, preventing the beauty head 200 from malfunctioning. Therefore, the problem of inaccurate identification of the auxiliary head due to the presence of skin care product at the identification PIN needle is reduced, and the accuracy of the auxiliary head's access status identification is improved.

[0039] Additionally, it should be noted that the electroacupuncture assembly 110 has some electroacupuncture pins used to supply power to the electroacupuncture assembly 110. When skin care products are present on the electroacupuncture assembly 110, if the high supply voltage on these electroacupuncture pins is transmitted to the electroacupuncture pins connected to the recognition module 400 through the skin care products, it may be further transmitted to the input pins of the microcontroller module 300 through the recognition module 400, thereby causing the input pins of the microcontroller module 300 to receive an overvoltage signal and burn out. However, by setting up a diode D1 in the recognition module 400, the voltage signal on the electroacupuncture pin connected to the cathode of the diode D1 is prevented from being transmitted in reverse to the input pins of the microcontroller module 300 due to the unidirectional conductivity of the diode D1, thus effectively protecting the input pins of the microcontroller module 300 from being damaged by receiving an overvoltage signal.

[0040] Continue to refer to Figure 3 In the beauty head recognition circuit provided in some embodiments of this utility model, the recognition module 400 further includes a filter capacitor C1, one end of which is connected to the anode of the diode D1, and the other end of which is grounded.

[0041] In this embodiment, the filter capacitor C1 can filter the voltage at the connection point between the pull-up resistor R1 and the anode of the diode D1, so as to avoid the voltage signal received by the input pin of the microcontroller module 300 being unstable due to unstable voltage at the DC power supply terminal VCC or other abnormal conditions.

[0042] Continue to refer to Figure 3 In the beauty head recognition circuit provided in some embodiments of this utility model, the recognition module 400 also includes an ESD diode. One end of the ESD diode is connected to the connection point of the input resistor R2 and the pull-up resistor R1, and the other end of the ESD diode is grounded.

[0043] In this embodiment, the ESD diode can discharge the electrostatic signal to ground when there is static electricity in the identification module 400 or the beauty head 200, preventing electrostatic discharge ESD from damaging sensitive circuits such as the input pins of the microcontroller module 300.

[0044] Continue to refer to Figure 3 In some embodiments of the beauty head recognition circuit provided by this utility model, two recognition modules 400 are provided. The two recognition modules 400 are respectively connected to input pin IO1 and input pin IO2 of microcontroller module 300.

[0045] In this embodiment, when the input pin of the microcontroller module 300 receives a high-level signal, it can be represented by signal 1; when it receives a low-level signal, it can be represented by signal 0. When there are two identification modules 400, there are four combinations of level signals received by the microcontroller module 300: (0,0), (0,1), (1,0), and (1,1). Among them, the level signal combination (1,1) can indicate that the host 100 is not connected to the beauty head 200.

[0046] In addition, a second aspect of the present invention provides a beauty device, including a main unit 100 and a beauty head 200 detachably mounted on the main unit 100. The main unit 100 includes the beauty head recognition circuit as described in the first aspect embodiment above.

[0047] According to the beauty device provided in this embodiment, when no beauty head 200 is installed on the main unit 100, the needle pins connected to all identification modules 400 are not grounded; when a beauty head 200 is installed on the main unit 100, at least one needle pin connected to the identification module 400 is grounded, so that the level signal provided by the identification module 400 to the microcontroller 300 is different from that when no beauty head 200 is installed; therefore, the microcontroller 300 can determine whether a beauty head 200 is installed on the main unit 100 based on whether the level signals provided by several identification modules 400 are different, and can also determine the type of beauty head 200 based on the combination of multiple level signals; the beauty head identification circuit of this beauty device can reliably identify the access status of the beauty head 200.

[0048] Specifically, in some embodiments of the beauty device provided by this utility model, several identification modules 400 include a first identification module and a second identification module, for example, referring to... Figure 3As shown, the first identification module is connected to the input port IO1 of the microcontroller module 300, and the second identification module is connected to the input port IO2 of the microcontroller module 300. Additionally, as described in the previous embodiment, the electroacupuncture assembly 110 may include six electroacupuncture pins: PIN1, PIN2, PIN3, PIN4, PIN5, and PIN6. PIN1 and PIN5 are used to identify the access status of the beauty head 200. The first identification module is connected to PIN1 in the electroacupuncture assembly 110, and the second identification module is connected to PIN5 in the electroacupuncture assembly 110. The beauty head 200 includes a first beauty head and a second beauty head. When the first beauty head is installed on the main unit 100, the needle pin connected to the first identification module is grounded, and the needle pin connected to the second identification module is left floating. That is, the needle pin PIN1 in the needle assembly 110 is grounded, and the needle pin PIN5 in the needle assembly 110 is left floating. The microcontroller 300 receives low and high levels respectively at the input ports of the first and second identification modules. That is, the input port IO1 of the microcontroller 300 receives a low level, and the input port IO2 of the microcontroller 300 receives a high level. The combination of the level signals received by the microcontroller 300 is (0, 1). At this time, the microcontroller 300 starts the first mode. When the second beauty head is installed on the main unit 100, the needle pin connected to the first identification module is left floating, and the needle pin connected to the second identification module is grounded. That is, the needle pin PIN1 in the needle assembly 110 is left floating, and the needle pin PIN5 in the needle assembly 110 is grounded. The microcontroller 300 receives high and low levels respectively at the input ports of the first and second identification modules. That is, the input port IO1 of the microcontroller 300 receives a high level, and the input port IO2 of the microcontroller 300 receives a low level. The combination of the level signals received by the microcontroller 300 is (1, 0). At this time, the microcontroller 300 starts the second mode.

[0049] In this embodiment, different types of beauty heads 200 connect different identification modules to the grounded needle pins, so that the input port of the microcontroller module 300 receives different combinations of level signals. Thus, the type of beauty head 200 can be identified based on the combination of level signals, and the corresponding operating mode can be activated, so that the beauty device can operate stably and reliably and provide good beauty effects.

[0050] In some embodiments of the beauty device provided by this utility model, when no beauty head is installed on the main unit 100, all the needle pins connected to the identification modules 400 are suspended. For example, in the above embodiment, the needle pins connected to the first identification module and the second identification module are suspended, that is, the needle pin PIN1 in the needle assembly 110 is suspended, and the needle pin PIN5 in the needle assembly 110 is also suspended. The microcontroller 300 receives a high level corresponding to all the needle pins connected to the identification modules 400. For example, in the above embodiment, the microcontroller 300 receives a high level corresponding to the input ports of the first identification module and the second identification module. That is, the input port IO1 of the microcontroller 300 receives a high level, and the input port IO2 of the microcontroller 300 also receives a high level. The combination of the level signals received by the microcontroller 300 is (1, 1). At this time, the microcontroller 300 activates the third mode.

[0051] In this embodiment, since the main unit 100 of the beauty device can also be equipped with electrodes that have a beauty effect or have a light-transmitting window for emitting light, when the microcontroller module 300 detects that the main unit 100 of the beauty device is not equipped with a beauty head, it can activate the third mode and use the electrodes or light-transmitting window of the main unit 100 itself to emit light to achieve a beauty effect on the user.

[0052] In other embodiments, the main unit 100 of the beauty device may not be equipped with electrodes and light-transmitting windows. In this case, if the microcontroller module 300 detects that the main unit 100 of the beauty device is not equipped with a beauty head, it may not start any working mode, but will be in standby mode.

[0053] Below, in conjunction with Figure 5 This document describes the workflow of the beauty device provided in some embodiments of the present invention. (Refer to...) Figure 5 The workflow of a beauty device includes the following steps: Step S501: Start; Proceed to step S502; Step S502: Obtain the combination of level signals obtained by the microcontroller module 300 from the first identification module and the second identification module, and determine which combination satisfies (1,1), (1,0), or (0,1). If the combination of level signals is (1,1), then proceed to step S503; if the combination of level signals is (1,0), then proceed to step S505; if the combination of level signals is (0,1), then proceed to step S507. Step S503: Confirm that the main unit does not have any accessory heads, donut-shaped or other similar beauty heads installed; proceed to S504; Step S504: Enable the third mode, such as CR mode; jump to S509; Step S505: Confirm that the host is equipped with a beauty head of type donut; proceed to S506; Step S506: Enable the second mode, for example, CR Pro mode; proceed to S509; Step S507: Confirm that the main unit is equipped with a beauty head of type accessory head; proceed to S508; Step S508: Enable the first mode, such as V-LIFT mode; proceed to S509; Step S509: Determine whether a power-off signal has been received; if yes, proceed to step S510; otherwise, proceed to step S502. Step S510: Power off; End.

[0054] The microcontroller module 300 receives different combinations of level signals through its input port, which allows it to identify the type of the beauty head 200 based on the combination of level signals, and then activate the corresponding operating mode, enabling the beauty device to operate stably and reliably and provide good beauty effects.

[0055] In some embodiments of the beauty device provided by this utility model, the electroacupuncture assembly 110 further includes a grounded electroacupuncture pin. When the beauty head 200 is installed on the main unit 100, the beauty head 200 short-circuits the grounded electroacupuncture pin with the electroacupuncture pin connected to the cathode of the diode D1. It can be understood that the grounded electroacupuncture pin in this embodiment can be the electroacupuncture pin PIN3 in the aforementioned embodiments.

[0056] In this embodiment, the grounding needle pin in the electroacupuncture assembly 110 provides a convenient grounding point to the beauty head 200, which allows the beauty head 200 to ground the needle pin connected to the cathode of the diode D1 in the identification module 400 through the grounding needle pin, without the need to set an additional grounding point on the beauty head 200.

[0057] In some embodiments of the beauty device provided by this utility model, the electroacupuncture assembly 110 further includes a microcurrent electroacupuncture pin for providing microcurrent to the beauty head 200 and a lamp power supply electroacupuncture pin for providing power to the ambient light of the beauty head 200. It is understood that the microcurrent electroacupuncture pin in this embodiment may be the electroacupuncture pin PIN4 and electroacupuncture pin PIN6 in the aforementioned embodiments, and the lamp power supply electroacupuncture pin may be the electroacupuncture pin PIN2 in the aforementioned embodiments.

[0058] In this embodiment, the microcurrent needle pin in the electroacupuncture assembly 110 can provide the microcurrent on the host 100 to the electrodes on the beauty head 200. The lamp power needle pin in the electroacupuncture assembly 110, together with the grounding needle pin, can provide the power on the host 100 to the ambient light on the beauty head 200, thereby realizing the power supply and control of the beauty head 200 by the host 100.

[0059] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A beauty head recognition circuit for a beauty device, characterized in that, The beauty device includes a main unit and a beauty head that can be detachably installed on the main unit. The main unit is provided with an electroacupuncture component for docking with the beauty head. The beauty head recognition circuit includes a microcontroller module and several recognition modules. One end of the recognition module is connected to an electroacupuncture pin in the electroacupuncture assembly, and the other end is connected to the input port of the microcontroller module; when the beauty head is installed on the host, at least one electroacupuncture pin connected to the recognition module is grounded; The microcontroller module is used to determine the access status of the beauty head based on the level signals provided by the identification modules.

2. The beauty head recognition circuit according to claim 1, characterized in that, The identification module includes a pull-up resistor, an input resistor, and a diode. One end of the pull-up resistor is connected to a DC power supply terminal, and the other end of the pull-up resistor is connected to the anode of the diode and one end of the input resistor. The cathode of the diode is connected to a pin of the needle assembly, and the other end of the input resistor is connected to the input port of the microcontroller module.

3. The beauty head recognition circuit according to claim 2, characterized in that, The resistance value of the pull-up resistor is determined based on the voltage value of the DC power supply terminal, the level identification critical voltage value of the input port of the microcontroller module, and the preset resistance value. in: When the voltage value received at the input port of the microcontroller module is greater than the level recognition threshold voltage value, the microcontroller module determines that a high-level signal has been received. The preset resistance value is the equivalent grounding resistance value when the needle pin connected to the cathode of the diode is grounded through the skin care product present on the needle assembly.

4. The beauty head recognition circuit according to claim 3, characterized in that, The ratio of the voltage value at the DC power supply terminal to the level recognition threshold voltage value is greater than the ratio obtained by dividing the sum of the pull-up resistor value and the equivalent grounding resistance value by the equivalent grounding resistance value.

5. The beauty head recognition circuit according to claim 2, characterized in that, The identification module further includes a filter capacitor, one end of which is connected to the anode of the diode, and the other end of which is grounded; and / or, the identification module further includes an ESD diode, one end of which is connected to the connection point of the input resistor and the pull-up resistor, and the other end of which is grounded.

6. The beauty head recognition circuit according to claim 1, characterized in that, The identification module is configured in two parts.

7. A beauty device, characterized in that, The device includes a main unit and a beauty head that is detachably mounted on the main unit, wherein the main unit includes the beauty head recognition circuit according to any one of claims 1 to 6.

8. The beauty device according to claim 7, characterized in that, The plurality of identification modules include a first identification module and a second identification module, and the beauty head includes a first beauty head and a second beauty head; When the first beauty head is installed on the host, the needle pin connected to the first recognition module is grounded, and the needle pin connected to the second recognition module is left floating. The microcontroller receives a low level and a high level respectively at the input ports of the first recognition module and the second recognition module, and then activates the first mode. When the second beauty head is installed on the main unit, the needle pin connected to the first identification module is left floating, and the needle pin connected to the second identification module is grounded. The microcontroller receives high and low levels at the input ports of the first and second identification modules respectively, and activates the second mode.

9. The beauty device according to claim 7, characterized in that, When no beauty head is installed on the main unit, the needle pin connected to the recognition module is left floating, and the microcontroller receives a high level at the input port corresponding to the recognition module, thus activating the third mode.

10. The beauty device according to claim 7, characterized in that, The electroacupuncture assembly also includes a grounded electroacupuncture pin. When the beauty head is installed on the host, the beauty head short-circuits the grounded electroacupuncture pin with the electroacupuncture pin connected to the identification module.

11. The beauty device according to claim 10, characterized in that, The electroacupuncture assembly also includes a microcurrent electroacupuncture pin for providing a microcurrent to the beauty head and a lamp power electroacupuncture pin for providing power to the ambient light of the beauty head.

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