Phototherapy instrument and wireless charging shutdown circuit thereof

Abstract

The utility model discloses a phototherapy instrument and a wireless charging shutdown circuit thereof. The wireless charging shutdown circuit comprises a wireless charging module, a switch module, a control module, an LED lamp driving module and a motor driving module. When the control module is in a power-on state and detects that the switch module is switched on, the control module controls the LED lamp driving module to stop outputting the driving signal so as to turn off the LED treatment lamp, and meanwhile, the control module controls the motor driving module to stop outputting the driving signal so as to turn off the working motor. According to the technical scheme, when the wireless charging module starts to work, the switch module is switched on, the control module can automatically detect and respond, output of the LED lamp driving module and output of the motor driving module are stopped immediately, it is ensured that the LED treatment lamp and the working motor are automatically turned off during charging, redundant heat generated in the charging process of equipment is avoided, the overheating risk is prevented, and the service life of the equipment is prolonged. And the safety of the user is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of physiotherapy device technology, and in particular to a phototherapy device and its wireless charging power-off circuit. Background Technology

[0002] In existing technologies, phototherapy devices typically feature wireless charging capabilities. However, this wireless charging process presents several safety hazards. For example, many phototherapy devices allow some functions, such as the motor or lights, to continue operating while charging, leading to excessive heat generation and overheating risks that could endanger user safety. Furthermore, existing state-switching mechanisms often rely on simple physical connections or voltage detection, lacking precise identification and comprehensive control of the charging status. This can result in the product continuing to operate some functions even when not fully powered off, creating further safety risks during charging.

[0003] Therefore, existing technologies have significant shortcomings in terms of switching working states and safety protection mechanisms during charging, and cannot fully ensure that all operating functions are turned off during wireless charging, thereby protecting user safety. Utility Model Content

[0004] This utility model provides a phototherapy device and its wireless charging power-off circuit to solve the above-mentioned technical problems.

[0005] The first aspect of this utility model provides a wireless charging power-off circuit for a phototherapy device, including: a wireless charging module, a switch module, a control module, an LED light driver module, and a motor driver module;

[0006] The first voltage output terminal of the wireless charging module is connected to the first terminal of the switch module so as to turn on the switch module when wireless charging begins.

[0007] The detection terminal of the control module is connected to the second terminal of the switch module, the first output terminal of the control module is connected to the control terminal of the LED driver module, and the second output terminal of the control module is connected to the control terminal of the motor driver module.

[0008] When the control module is powered on and detects that the switch module is turned on, it controls the LED lamp driver module to stop outputting drive signals to turn off the LED therapeutic lamp. At the same time, it controls the motor driver module to stop outputting drive signals to turn off the working motor.

[0009] Optionally, the wireless charging power-off circuit further includes a wireless charging indicator light, the status output terminal of the wireless charging module is connected to the detection terminal of the control module, and the third output terminal of the control module is connected to the control terminal of the wireless charging indicator light.

[0010] When the control module detects that the wireless charging module is charging, it controls the wireless charging indicator light to flash.

[0011] When the control module detects that the wireless charging module has finished charging, it controls the wireless charging indicator light to stay on.

[0012] Optionally, the wireless charging power-off circuit further includes a power supply module, wherein the first voltage output terminal of the wireless charging module is connected to the control terminal of the power supply module, the second voltage output terminal of the wireless charging module is connected to the voltage input terminal of the power supply module, and the voltage output terminal of the power supply module is connected to the voltage input terminal of the control module.

[0013] When the control module is in the off state, the wireless charging module causes the power supply module to supply power to the control module when wireless charging begins, so as to power on the control module.

[0014] Optionally, the power supply module includes a first switching device and a second switching device;

[0015] One end of the first switching device is the voltage input terminal of the power supply module, and the other end of the first switching device is the voltage output terminal of the power supply module. One end of the second switching device is connected to the control terminal of the first switching device, and the other end of the second switching device is grounded. The control terminal of the second switching device is the control terminal of the power supply module.

[0016] When the control module is in the off state, the wireless charging module outputs a conduction control signal to the second switching device when wireless charging starts, so that the second switching device is turned on, which in turn turns on the first switching device and supplies power to the control module, thereby turning on the control module.

[0017] Optionally, the wireless charging module includes a wireless charging coil and a wireless charging chip;

[0018] The voltage output terminal of the wireless charging coil is connected to the voltage input pin of the wireless charging chip, forming the first voltage output terminal of the wireless charging module. The status output pin of the wireless charging chip is the status output terminal of the wireless charging module.

[0019] Optionally, the switching module includes a first current-limiting resistor, a second current-limiting resistor, and a third switching device. One end of the first current-limiting resistor is the first end of the switching module, and the second end of the first current-limiting resistor is connected to one end of the second current-limiting resistor and the control terminal of the third switching device. The other end of the second current-limiting resistor is grounded, and one end of the third switching device is the second end of the switching module. The other end of the third switching device is grounded.

[0020] Optionally, the motor drive module includes a prompting motor drive module and a vibration motor drive module, and the second output terminal of the control module is connected to the prompting motor drive module and the vibration motor drive module respectively;

[0021] When the control module is powered on, and when the switch module is detected to be on, it controls the prompt motor drive module to stop outputting drive signals to turn off the prompt motor. At the same time, it controls the vibration motor drive module to stop outputting drive signals to turn off the vibration motor.

[0022] Optionally, the vibration motor drive module includes a seventeenth resistor, an eighteenth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a second diode, a seventh transistor, and a third connector;

[0023] One end of the 27th resistor is connected to the power supply voltage. The other end of the 27th resistor is connected to one end of the 28th resistor, the second diode, and the first pin of the third connector. The anode of the second diode is connected to the collector of the 7th transistor and the second pin of the third connector. The base of the 7th transistor is connected to one end of the 18th resistor and one end of the 17th resistor. The other end of the 18th resistor and the emitter of the 7th transistor are connected to ground. The other end of the 17th resistor is the control terminal of the vibration motor drive module.

[0024] Optionally, the prompting motor drive module includes a nineteenth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a thirteenth transistor, and a fourth connector;

[0025] One end of the 26th resistor is connected to the power supply voltage, and the other end of the 26th resistor is connected to the first pin of the fourth connector. The collector of the 13th transistor is connected to the second pin of the fourth connector. The base of the 13th transistor is connected to one end of the 19th resistor and one end of the 25th resistor. The other end of the 25th resistor and the emitter of the 13th transistor are connected to ground.

[0026] A second aspect of this utility model provides a phototherapy device, comprising: the wireless charging power-off circuit described in the first aspect, an LED therapeutic lamp, and a working motor, wherein the LED therapeutic lamp is connected to the LED lamp driver module, and the working motor is connected to the motor driver module.

[0027] The technical effect of this utility model embodiment is as follows: When the wireless charging module starts working, the switch module is turned on, and the control module can automatically detect and respond, immediately stopping the output of the LED light driver module and the motor driver module, ensuring that the LED therapeutic lamp and the working motor are automatically turned off during charging, avoiding the generation of excess heat in the device during charging, preventing the risk of overheating, and effectively protecting the user's safety. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the first structure of a wireless charging power-off circuit for a phototherapy device provided in Embodiment 1 of this utility model;

[0029] Figure 2 This is a schematic diagram of the second structure of a wireless charging power-off circuit for a phototherapy device provided in Embodiment 1 of this utility model;

[0030] Figure 3 This is a circuit diagram of the wireless charging indicator light in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0031] Figure 4 This is a schematic diagram of the third structure of a wireless charging power-off circuit for a phototherapy device provided in Embodiment 1 of this utility model;

[0032] Figure 5 This is a schematic diagram of the power supply module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0033] Figure 6 This is a circuit diagram of the power supply module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the wireless charging module in the wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0035] Figure 8 This is a circuit diagram of the wireless charging module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0036] Figure 9 This is a schematic diagram of the switch module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0037] Figure 10 This is a circuit diagram of the switch module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0038] Figure 11 This is a schematic diagram of the fourth structure of a wireless charging power-off circuit for a phototherapy device provided in Embodiment 1 of this utility model;

[0039] Figure 12 This is a circuit diagram of the vibration motor drive module in the wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0040] Figure 13This is a circuit diagram of the prompt motor drive module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0041] Figure 14 This is a circuit diagram of the LED light driver module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0042] Figure 15 This is a circuit diagram of the control module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0043] Figure 16 This is a circuit diagram of the voltage conversion module in the wireless charging power-off circuit of a phototherapy device provided in Embodiment 1 of this utility model;

[0044] In the diagram: 10. Wireless charging power-off circuit; 101. Wireless charging module; 102. Switch module; 103. Control module; 104. LED light driver module; 105. Motor driver module; 106. LED therapeutic lamp; 107. Working motor; 108. Wireless charging indicator light; 109. Power supply module; 110. Vibration motor driver module; 111. Wireless charging coil; 112. Wireless charging chip; 120. Vibration motor; 121. First current-limiting resistor; 122. Second current-limiting resistor; 123. Third switching device; 191. First switching device; 192. Second switching device. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0046] It should be understood that this invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of this invention to those skilled in the art. In the drawings, for clarity, the dimensions of layers and regions, as well as their relative dimensions, may be exaggerated. The same reference numerals denote the same elements throughout.

[0047] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this utility model, the first element, component, area, layer, or portion discussed below may be referred to as the second element, component, area, layer, or portion.

[0048] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein for convenience of description to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, then the element or feature described as “below,” “under,” or “below” other elements or features will be oriented “above” other elements or features. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatial descriptive terms used herein will be interpreted accordingly.

[0049] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0050] To fully understand this utility model, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0051] Example 1

[0052] This embodiment provides a wireless charging power-off circuit 10 for a phototherapy device, such as... Figure 1 As shown, it includes: a wireless charging module 101, a switch module 102, a control module 103, an LED light driver module 104, and a motor driver module 105;

[0053] The first voltage output terminal of the wireless charging module 101 is connected to the first terminal of the switch module 102 so as to turn on the switch module 102 when wireless charging starts.

[0054] The detection terminal of the control module 103 is connected to the second terminal of the switch module 102, the first output terminal of the control module 103 is connected to the control terminal of the LED driver module 104, and the second output terminal of the control module 103 is connected to the control terminal of the motor driver module 105.

[0055] When the control module 103 is powered on and detects that the switch module 102 is turned on, it controls the LED lamp driver module 104 to stop outputting drive signals to turn off the LED therapeutic lamp 106. At the same time, it controls the motor driver module 105 to stop outputting drive signals to turn off the working motor 107.

[0056] The wireless charging module 101 senses the wireless charging signal and provides charging power to the device. The wireless charging module 101 typically includes a wireless charging receiving coil, a rectifier circuit, and a voltage regulation circuit. Its function is to enable charging of the device without physical contact. When the wireless charging module 101 detects a charging state, its first voltage output terminal outputs a signal to the switch module 102 to initiate the charging process. Its second voltage output terminal outputs voltage to charge the energy storage module (not shown), which can be a battery. The switch module 102 controls the on / off state of the circuit based on the output signal from the wireless charging module 101. The switch module 102 can be a MOSFET, a BJT, or a relay. By receiving the signal from the wireless charging module 101, the switch module 102 conducts at the start of charging, enabling the control module 103 to recognize the charging state and trigger a subsequent shutdown operation to prevent the device from continuing to operate during charging. The control module 103 executes the control logic of the overall circuit, including detecting the state of the switch module 102 and controlling the working states of the LED lamp driver module 104 and the motor driver module 105. The LED lamp driver module 104 provides a drive signal to the LED therapeutic lamp 106 and operates or stops under the control of the control module 103. When the control module 103 detects that the device is in a wireless charging state, the LED lamp driver module 104 will stop outputting drive signals to ensure that the LED therapeutic lamp 106 is turned off, reducing power consumption and overheating risks during charging. The motor driver module 105 provides a drive signal to the working motor 107 inside the device to make the motor run. Under the signal control of the control module 103, the motor driver module 105 stops outputting drive signals to ensure that the working motor 107 is completely turned off during wireless charging, thereby avoiding safety hazards caused by the device continuing to operate.

[0057] The working process of this embodiment is as follows: When the phototherapy device is connected to the wireless charging base, the wireless charging module 101 receives the wireless charging signal and begins to obtain energy from the transmitter, outputting electrical energy to charge the battery. Simultaneously, the wireless charging module 101 connects to the control terminal of the switch module 102 through its first voltage output terminal, triggering the switch module 102 to conduct, indicating that the device has entered the wireless charging state. After the switch module 102 is conducted, the detection terminal of the control module 103 detects the conduction state of the switch module 102, thereby detecting that the device is in the wireless charging state. The control module 103 sends a control signal to the LED lamp driver module 104 through its first output terminal, controlling it to stop outputting the drive signal to turn off the LED therapy lamp 106 inside the device, ensuring that no additional power is consumed or excessive heat is generated during charging. Simultaneously, the control module 103 sends a control signal to the motor drive module 105 through its second output terminal, controlling it to stop providing the drive signal, thereby turning off the working motor 107 inside the device, ensuring that the motor does not continue to operate during charging.

[0058] The technical advantages of this embodiment are as follows: When the wireless charging module starts working, the switch module is turned on, and the control module can automatically detect and respond, immediately stopping the output of the LED light driver module and the motor driver module. This ensures that the LED therapeutic light and the working motor automatically turn off during charging, avoiding the generation of excess heat during the charging process, preventing overheating risks, and effectively ensuring user safety. Through the cooperation of the wireless charging module and the switch module, precise state switching is achieved when the device enters the wireless charging state. By detecting the status of the switch module in real time, the control module can automatically cut off all treatment-related function outputs, ensuring that the device is completely shut down during wireless charging, effectively avoiding the safety hazards of the device still operating while charging.

[0059] As a second structure for wireless charging power-off circuits, such as Figure 2 As shown, the wireless charging power-off circuit 10 also includes a wireless charging indicator light 108. The status output terminal of the wireless charging module 101 is connected to the detection terminal of the control module 103, and the third output terminal of the control module 103 is connected to the control terminal of the wireless charging indicator light 108. When the control module 103 detects that the wireless charging module 101 is charging, it controls the wireless charging indicator light 108 to flash. When the control module 103 detects that the wireless charging module 101 has finished charging, it controls the wireless charging indicator light 108 to stay on.

[0060] The control module 103 can also monitor the status of the wireless charging module 101 and control the device's operation functions and the wireless charging indicator light 108 according to different charging states. When charging is detected, the control module 103 turns off the LED therapy light 106 and the working motor 107 in the device and controls the wireless charging indicator light 108 to flash. When charging is detected, the wireless charging indicator light 108 is kept on, and the device remains in a powered-off state until the user manually operates or unplugs the charging device. The wireless charging indicator light 108 is used to intuitively display the current charging status of the device to the user. The wireless charging indicator light 108 can be an LED or an electrically emitting light-emitting material.

[0061] The technical advantage of this embodiment is that the wireless charging indicator light provides intuitive feedback on the charging status of the device by flashing or remaining constantly lit, providing users with clear charging progress information. The flashing and constant lit states allow users to easily distinguish whether the device is still charging or has finished charging, avoiding unnecessary checks and improving the convenience of the user experience.

[0062] As an example of a wireless charging indicator light, such as Figure 3As shown, the wireless charging indicator light 108 is a light-emitting diode LED1. The cathode of the light-emitting diode LED1 is connected to the third output terminal of the control module 103, and the anode of the light-emitting diode LED1 is connected to one end of the twenty-first resistor R21. The other end of the twenty-first resistor R21 is connected to the power supply voltage BAT.

[0063] When the device is detected to be charging, the control module 103 turns off the LED therapy light 106 and the working motor 107 in the device, and controls the wireless charging indicator light 108 to flash. When the device is detected to be fully charged, the wireless charging indicator light 108 is kept on.

[0064] As a third structure of the wireless charging power-off circuit 10, such as Figure 4 As shown, the wireless charging power-off circuit 10 also includes a power supply module 109. The first voltage output terminal of the wireless charging module 101 is connected to the control terminal of the power supply module 109, and the second voltage output terminal of the power supply module 109 is connected to the voltage input terminal of the control module 103. When the control module 103 is in the power-off state, the wireless charging module 101 causes the power supply module 109 to supply power to the control module 103 when wireless charging starts, so as to power on the control module 103.

[0065] The power supply module 109 provides power to the control module 103 when wireless charging begins, ensuring that the control module 103 can work normally. When the control module 103 is in the off state, the wireless charging module 101 triggers the power supply module 109 to supply power to the control module 103, thereby automatically starting the control module 103 from the off state to the on state, and continuing to execute the relevant control logic operations.

[0066] The operation of this embodiment is as follows: When the device is not in wireless charging mode or not powered, the control module 103 is in a powered-off state, the power supply module 109 does not provide power to the control module 103, and the entire system is in a low-power or standby state. When the device starts wireless charging, the first voltage output terminal of the wireless charging module 101 outputs a signal to the control terminal of the power supply module 109, triggering the power supply module 109 to start. After receiving the signal from the wireless charging module 101, the power supply module 109 starts working and provides a stable voltage and current to the power input terminal of the control module 103 to start the control module 103. After receiving power from the power supply module 109, the control module 103 switches from the powered-off state to the powered-on state and begins to execute logic control of the device. The control module 103 then controls the wireless charging indicator light 108 to flash. When the device is detected to be fully charged, the wireless charging indicator light 108 is kept constantly lit.

[0067] The technical advantage of this implementation is that the power supply module ensures that the device can automatically start from the off state when wireless charging begins, ensuring that the control module can operate normally without requiring the user to manually turn it on, thus improving the intelligence of the device and the user experience.

[0068] As one implementation of the power supply module 109, such as Figure 5 As shown, the power supply module 109 includes a first switching device 191 and a second switching device 192; one end of the first switching device 191 is the voltage input terminal of the power supply module 109, and the other end of the first switching device 191 is the voltage output terminal of the power supply module 109; one end of the second switching device 192 is connected to the control terminal of the first switching device 191, and the other end of the second switching device 192 is grounded; the control terminal of the second switching device 192 is the control terminal of the power supply module 109; when the control module 103 is in the off state, the wireless charging module 101 outputs a conduction control signal to the second switching device 192 when wireless charging starts, so that the second switching device 192 conducts, thereby causing the first switching device 191 to conduct and supply power to the control module 103, so that the control module 103 is turned on.

[0069] As an example of power supply module 109, such as Figure 6As shown, the first switching device 191 is the third MOSFET Q3, the second switching device 192 is the fourth transistor Q4, and the power supply module 109 also includes a first MOSFET Q1, a second transistor Q2, a sixth MOSFET Q6, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, and a first button S1. One end of the third resistor R3 is connected to BAT, and the other end of the third resistor R3 is connected to the drain of the first MOSFET Q1. The gate of the first MOSFET Q1 is connected to one end of the fourth resistor R4 and one end of the fifth resistor R5. The other end of the fifth resistor R5 is connected to one end of the first button S1 and one end of the sixth resistor R6. The other end of the first button S1 is connected to the second voltage output terminal of the wireless charging module 101, one end of the seventh resistor R7, and the third MOSFET. The source of S-MOSFET Q3 and the drain of the third MOSFET Q3 are the voltage output terminals of the power supply module 109. The gate of the third MOSFET Q3 is connected to the other end of the seventh resistor R7, the collector of the second transistor Q2, the collector of the fourth transistor Q4, and the drain of the sixth MOSFET Q6. The emitter of the fourth transistor Q4 is grounded. The base of the fourth transistor Q4 is connected to one end of the tenth resistor R10. The other end of the tenth resistor R10 and one end of the eleventh resistor R11 are connected to the control terminal of the power supply module 109. The other end of the eleventh resistor R11 is grounded. The source of the sixth MOSFET Q6, the emitter of the second transistor Q2, one end of the eighth resistor R8, the other end of the fourth resistor R4, and the source of the first MOSFET Q1 are all connected to ground. The gate of the sixth MOSFET Q6 is connected to the other end of the eighth resistor R8 and one end of the ninth resistor R9. The other end of the ninth resistor R9 is connected to the control module 103.

[0070] For the wireless charging module 101, as one implementation method, such as Figure 7 As shown, the wireless charging module 101 includes a wireless charging coil 111 and a wireless charging chip 112; the voltage output terminal of the wireless charging coil 111 is connected to the voltage input pin of the wireless charging chip 112, and forms the first voltage output terminal of the wireless charging module 101; the status output pin of the wireless charging chip 112 is the status output terminal of the wireless charging module 101.

[0071] The wireless charging coil 111 receives electromagnetic signals from the wireless charging transmitter and converts them into electrical energy. The wireless charging coil 111 senses the electromagnetic field of the transmitter and transmits the alternating current generated by electromagnetic induction to the wireless charging chip 112, while simultaneously outputting voltage to the switching module 102. The wireless charging chip 112 receives the alternating current provided by the wireless charging coil 111, rectifies and regulates it, converting it into direct current suitable for the device. Simultaneously, the chip manages the entire charging process and outputs charging status signals.

[0072] The technical advantage of this embodiment is that the wireless charging chip can efficiently convert the AC power received from the wireless charging coil into stable DC power, providing a continuous and reliable power output for the device. The wireless charging module receives electromagnetic energy through the wireless charging coil and performs power conversion and management through the wireless charging chip, ensuring that the device completes charging efficiently and safely during wireless charging.

[0073] As an example of the wireless charging module 101, such as Figure 8 As shown, the wireless charging module 101 includes a first coil J5, a wireless charging chip U2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, and a first connector J1. Pin 1 of the first coil J5 is connected to one end of the third capacitor C3, and the other end of the third capacitor C3 is grounded. Pin 2 of the first coil J5 is connected to one end of the fourth capacitor C4, one end of the fifth capacitor C5, one end of the seventh capacitor C7, one end of the twenty-fourth resistor R24, and pin 3 of the wireless charging chip U2. One end of the sixth capacitor C6 is connected to pin 1 of the wireless charging chip U2, and the other end of the sixth capacitor C6 is grounded. The other end of capacitor C7 is connected to pin 2 of wireless charging chip U2. The other end of resistor R24 ​​is connected to pin 4 of wireless charging chip U2. The other end of capacitor C5 is connected to pin 5 of wireless charging chip U2. Pin 6 of wireless charging chip U2 is connected to one end of resistor R22, and the other end of resistor R22 is grounded. Pin 8 of wireless charging chip U2 is connected to one end of resistor R23, and the other end of resistor R23 is grounded. Pin 10 of wireless charging chip U2 is connected to one end of capacitor C8, one end of capacitor C9, and pin 2 of connector J1, and outputs voltage VBAT. The other ends of capacitor C8, capacitor C9, and connector J1 are all grounded.

[0074] As one implementation of the switch module 102, such as Figure 9 As shown, the switch module 102 includes a first current-limiting resistor 121, a second current-limiting resistor 122, and a third switch device 123. One end of the first current-limiting resistor 121 is the first end of the switch module 102. The second end of the first current-limiting resistor 121 is connected to one end of the second current-limiting resistor 122 and the control terminal of the third switch device 123. The other end of the second current-limiting resistor 122 is grounded. One end of the third switch device 123 is the second end of the switch module 102. The other end of the third switch device 123 is grounded.

[0075] The first current-limiting resistor 121 limits the current flowing through the circuit, protecting subsequent switching devices from excessive current and preventing damage. The second current-limiting resistor 122 forms a voltage divider network with the first current-limiting resistor 121, further controlling the current flowing through the control terminal of the third switching device 123. The third switching device 123 controls the current switching on and off according to the change in the control terminal voltage. It can typically be a field-effect transistor (MOSFET) or a bipolar junction transistor (BJT). When the current through the first current-limiting resistor 121 is divided, a suitable voltage is applied to the control terminal of the switching device (such as the gate of a MOSFET), turning the switching device on and allowing the signal to pass. Conversely, when the control terminal voltage is below the threshold, the switching device turns off, blocking the signal.

[0076] The working process of this embodiment is as follows: When the wireless charging module 101 starts working, it sends a signal to the switch module 102. The current passes through the first current-limiting resistor 121 and the second current-limiting resistor 122 to form a voltage divider, which controls the voltage at the control terminal of the third switch device 123, thus controlling whether the third switch device 123 is turned on or off. When the third switch device 123 is turned on, the control module 103 senses the on state of the switch module 102, controls the LED lamp driver module 104 to stop outputting, turns off the LED therapeutic lamp 106, and controls the motor driver module 105 to stop outputting, turning off the working motor 107.

[0077] The technical advantages of this implementation are: it can automatically shut off the LED therapeutic lamp and the working motor when wireless charging begins, ensuring that the system is in a safe and energy-saving state during charging, preventing unnecessary energy consumption, and extending the service life of the device. The current-limiting resistor in the switching module not only protects the circuit components from overcurrent damage, but also ensures the stable operation of the switching devices, improving the stability and safety of the entire circuit.

[0078] As an example, such as Figure 10 As shown, the first current-limiting resistor 121 is the first resistor R1, the second current-limiting resistor 122 is the second resistor R2, and the third switching device 123 is the ninth transistor Q9. One end of the first resistor R1 is connected to the ground, and the other end of the first resistor R1 is connected to one end of the second resistor R2 and the base of the ninth transistor Q9. The other end of the second resistor R2 is grounded, the collector of the ninth transistor Q9 is grounded, and the emitter of the ninth transistor Q9 is grounded.

[0079] As the fourth structure of the wireless charging power-off circuit 10, such as Figure 11 As shown, the motor drive module 105 includes a prompting motor drive module 112 and a vibration motor drive module 110, and the second output terminal of the control module 103 is connected to the prompting motor drive module 112 and the vibration motor drive module 110 respectively.

[0080] When the control module 103 is powered on, and when the switch module 102 is detected to be turned on, the control module 112 stops outputting drive signals to turn off the prompt motor 113. At the same time, the control module 110 stops outputting drive signals to turn off the vibration motor 120.

[0081] The system includes a prompt motor drive module 112 that drives a prompt motor 113 to provide visual, auditory, or tactile prompts to remind the user of the device's status or operating mode. When the device is in operation, the control module 103 sends a drive signal to the prompt motor drive module 112, causing the prompt motor 113 to operate and provide operational prompts (such as rotation or beeping). When the switch module 102 is detected to be on (indicating that the device has entered wireless charging mode), the control module 103 stops sending drive signals to the prompt motor drive module 112, and the prompt motor 113 stops operating. The vibration motor drive module 110 drives a vibration motor 120 to generate vibration signals, typically used for specific functions of phototherapy devices to provide vibration therapy or feedback. When the device is in operation, the control module 103 sends a drive signal to the vibration motor drive module 110, causing the vibration motor 120 to start operating and provide vibration therapy effects or feedback. When the switch module 102 is detected to be on (i.e., wireless charging has started), the control module 103 stops sending drive signals to the vibration motor drive module 110, and the vibration motor 120 stops operating. The control module 103 controls the operating status of the prompt motor drive module 112 and the vibration motor drive module 110, and monitors the status of the switch module 102 to ensure that each motor drive module is turned off in time when wireless charging begins. When the switch module 102 is detected to be turned on (wireless charging begins), the control module 103 immediately stops sending drive signals to the prompt motor 113 and the vibration motor drive module 110, and turns off the prompt motor 113 and the vibration motor 120. Afterwards, the device enters the wireless charging state, and each motor module remains off until charging is complete or the device re-enters the operating state.

[0082] The technical advantages of this implementation are: ensuring that the device automatically shuts down all motor modules during wireless charging, avoiding unnecessary power consumption and interference. Effective switch control and signal detection not only improve device safety but also extend motor lifespan, while optimizing the user experience and making the device more intelligent and energy-efficient.

[0083] As an example of the vibration motor drive module 110, such as Figure 12As shown, the vibration motor drive module 110 includes a seventeenth resistor R17, an eighteenth resistor R18, a twenty-seventh resistor R27, a twenty-eighth resistor R28, a second diode D2, a seventh transistor Q7, and a third connector J3. One end of the twenty-seventh resistor R27 is connected to a 3.0V power supply voltage. The other end of the twenty-seventh resistor R27 is connected to one end of the twenty-eighth resistor R28, the second diode D2, and pin 1 of the third connector J3. The anode of the second diode D2 is connected to the collector of the seventh transistor Q7 and pin 2 of the third connector J3. The base of the seventh transistor Q7 is connected to one end of the eighteenth resistor R18 and one end of the seventeenth resistor R17. The other end of the eighteenth resistor R18 and the emitter of the seventh transistor Q7 are connected to ground. The other end of the seventeenth resistor R17 is the control terminal of the vibration motor drive module 110.

[0084] As an example of the prompt motor drive module 112, such as Figure 13 As shown, the motor drive module 112 includes a nineteenth resistor R19, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a thirteenth transistor Q10, and a fourth connector J4. The first end of the twenty-sixth resistor R26 is connected to a 3.0V power supply voltage, the second end of the twenty-sixth resistor R26 is connected to pin 1 of the fourth connector J4, the collector of the thirteenth transistor Q10 is connected to pin 2 of the fourth connector J4, the base of the thirteenth transistor Q10 is connected to one end of the nineteenth resistor R19 and one end of the twenty-fifth resistor R25, and the other end of the twenty-fifth resistor R25 and the emitter of the thirteenth transistor Q10 are connected to ground.

[0085] As an example of the LED lamp driver module 104, such as Figure 14 As shown, the LED driver module 104 includes a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a fifth MOSFET Q5, and a second connector J2. Pin 1 of the second connector J2 is connected to one end of the thirteenth resistor R13, and the other end of the thirteenth resistor R13 is connected to a 5V voltage. Pin 2 of the second connector J2 is connected to the drain of the fifth MOSFET Q5. The gate of the fifth MOSFET Q5 is connected to one end of the fifteenth resistor R15 and one end of the sixteenth resistor R16. The other end of the sixteenth resistor R16 and the source of the fifth MOSFET Q5 are connected to ground. The other end of the fifteenth resistor R15 and one end of the fourteenth resistor R14 are connected to the control module 103. The other end of the fourteenth resistor R14 is grounded.

[0086] As an example of control module 103, such as Figure 15As shown, control module 103 is the third chip U3. Pin 1 of the third chip U3 is connected to BAT, one end of the tenth capacitor C10, and one end of the second capacitor C2. The other ends of the tenth capacitor C10 and the second capacitor C2 are both connected to ground. Pin 2 of the third chip U3 is connected to one end of the twelfth resistor R12. The other end of the twelfth resistor R12 is connected to one end of the second switch S2, and the other end of the second switch S2 is grounded. Pin 10 of the third chip U3 is also connected to a voltage conversion module, such as... Figure 16 As shown, the voltage conversion module includes a fourth chip U4, a thirteenth capacitor C13, a fourteenth capacitor C14, a fifteenth capacitor C15, a sixteenth capacitor C16, and a thirty-seventh resistor R37. Pin 1 of the fourth chip U4 is connected to one end of the thirteenth capacitor C13 and one end of the sixteenth capacitor C16, respectively. The other ends of the thirteenth capacitor C13 and the sixteenth capacitor C16 are connected to ground. Pin 3 of the fourth chip U4 is connected to one end of the thirty-seventh resistor R37, and the other end of the thirty-seventh resistor R37 is connected to pin 10 of the third chip U3. Pin 4 of the third chip U3 is connected to one end of the fourteenth capacitor C14 and BAT, and the other end of the fourteenth capacitor C14 is grounded. Pin 6 of the third chip U3 is connected to one end of the third inductor L3, and the other end of the third inductor L3 is connected to one end of the fifteenth capacitor C15, and the other end of the fifteenth capacitor C15 is grounded.

[0087] The circuit operates as follows: When the main unit is powered off, after the wireless charging dock is plugged into a 5V outlet, the main unit is placed on the dock. The receiving coil J5 is inductively coupled to the dock coil, and the main unit begins charging. At the same time, the output signal ACN of the first coil J5 is high, turning on the transistor Q4 in the power supply module, which in turn pulls the gate of the third MOSFET Q3 low. The third MOSFET Q3 is working, and the BAT voltage is turned on, supplying power to the first chip U1. The first chip U1 starts working, and the LED1 starts to light up. Only pins 8, 9, and 13 of all peripheral GPIO control ports are working, while the other GPIOs are in the off state and have no operation. When the first chip U1 detects the state of pin 7STA of the second chip U2, the indicator light flashes when it is in a high impedance state for 0.5 seconds. When STA is continuously high, the charging state is fully charged, and the indicator light stays on. When the main unit is powered on, regardless of whether it's in mode A (motor on), mode B (treatment lamp on), or in standby mode with no operation, once the wireless charging base is plugged in (5V), and the main unit is placed on the base while powered on, the first receiving coil J5 inductively couples with the base coil, and the main unit begins charging. When the first chip U1 detects that pin 7 of the second wireless charging receiving chip U2 is in a 0.5s high-impedance state, pin 12 of the first chip U1 is high, and ACN is high. After voltage division by the first resistor R1 and the second resistor R2, the ninth transistor Q9 is turned on at the base (B), pulling down the collector (C) of the ninth transistor Q9. Simultaneously, pin 12 of the first chip U1 is low. At this time, the first chip U... When pin 10 of chip 1 is at a low enable level (EN1), the boost IC of the fourth chip U4 is turned off. The PWM_L output of the first chip U1 is at a low level, disconnecting the negative terminal of the LED lamp driver module and turning off the LED therapeutic lamp. At the same time, the PWM_M and PWM_M2 outputs of the first chip U1 are at a low level, disconnecting the outputs of the working motor and the indicator motor. Only pins 8, 9, and 13 of the peripheral GPIO control port of the first chip U1 are working, while the other GPIOs are in a closed state and have no operation. Pin 8 of the first chip U1 detects the STA charging status of the wireless charger of the second chip U2. When it is in a high impedance state for 0.5 seconds, the normal charging status indicator flashes. When the STA output is continuously high, the charging status is fully charged, and the indicator light is constantly on.

[0088] Example 2

[0089] This second embodiment provides a phototherapy device, including the wireless charging power-off circuit, LED therapy lamp, and working motor provided in the first embodiment. The LED therapy lamp is connected to the LED lamp driver module, and the working motor is connected to the motor driver module.

[0090] The phototherapy device includes a wireless charging base and a wireless charging main unit. After being plugged into a 5V power source, the wireless charging base enters standby mode, indicated by a white indicator light. The main unit has an indicator light, two buttons, a prompt motor, a vibration motor, and a treatment light panel. Pressing and holding button A for 2 seconds powers on the device, illuminating the white indicator light and indicating the motor will vibrate for 5 seconds. A short press of button A starts the motor, which operates for 30 seconds, pauses for 3 seconds, and then continues. One treatment session lasts 10 minutes. A short press of button B turns on the light in the treatment area. The light operates at a wavelength of 630+830nm, pausing for 3 seconds every 30 seconds before resuming operation. One treatment session lasts 10 minutes. Regardless of the operating mode, when the device is placed in the charging base for wireless charging, this function is disabled, and the device enters a power-off charging state, indicated by a flashing white light. Wireless charging disables all operations, preventing potential harm from overheating or other issues during charging. For a detailed description of the operation process, please refer to Example 1; it will not be repeated here.

[0091] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A wireless charging power-off circuit for a phototherapy device, characterized in that, include: Wireless charging module, switch module, control module, LED light driver module, and motor driver module; The first voltage output terminal of the wireless charging module is connected to the first terminal of the switch module so as to turn on the switch module when wireless charging begins. The detection terminal of the control module is connected to the second terminal of the switch module, the first output terminal of the control module is connected to the control terminal of the LED driver module, and the second output terminal of the control module is connected to the control terminal of the motor driver module. When the control module is powered on and detects that the switch module is turned on, it controls the LED lamp driver module to stop outputting drive signals to turn off the LED therapeutic lamp. At the same time, it controls the motor driver module to stop outputting drive signals to turn off the working motor.

2. The wireless charging power-off circuit as described in claim 1, characterized in that, The wireless charging power-off circuit also includes a wireless charging indicator light. The status output terminal of the wireless charging module is connected to the detection terminal of the control module, and the third output terminal of the control module is connected to the control terminal of the wireless charging indicator light. When the control module detects that the wireless charging module is charging, it controls the wireless charging indicator light to flash. When the control module detects that the wireless charging module has finished charging, it controls the wireless charging indicator light to stay on.

3. The wireless charging power-off circuit as described in claim 2, characterized in that, The wireless charging power-off circuit also includes a power supply module. The first voltage output terminal of the wireless charging module is connected to the control terminal of the power supply module, the second voltage output terminal of the wireless charging module is connected to the voltage input terminal of the power supply module, and the voltage output terminal of the power supply module is connected to the voltage input terminal of the control module. When the control module is in the off state, the wireless charging module causes the power supply module to supply power to the control module when wireless charging begins, so as to power on the control module.

4. The wireless charging power-off circuit as described in claim 3, characterized in that, The power supply module includes a first switching device and a second switching device; One end of the first switching device is the voltage input terminal of the power supply module, and the other end of the first switching device is the voltage output terminal of the power supply module. One end of the second switching device is connected to the control terminal of the first switching device, and the other end of the second switching device is grounded. The control terminal of the second switching device is the control terminal of the power supply module. When the control module is in the off state, the wireless charging module outputs a conduction control signal to the second switching device when wireless charging starts, so that the second switching device is turned on, which in turn turns on the first switching device and supplies power to the control module, thereby turning on the control module.

5. The wireless charging power-off circuit as described in any one of claims 1 to 3, characterized in that, The wireless charging module includes a wireless charging coil and a wireless charging chip. The voltage output terminal of the wireless charging coil is connected to the voltage input pin of the wireless charging chip, forming the first voltage output terminal of the wireless charging module. The status output pin of the wireless charging chip is the status output terminal of the wireless charging module.

6. The wireless charging power-off circuit as described in any one of claims 1 to 3, characterized in that, The switching module includes a first current-limiting resistor, a second current-limiting resistor, and a third switching device. One end of the first current-limiting resistor is the first end of the switching module. The second end of the first current-limiting resistor is connected to one end of the second current-limiting resistor and the control terminal of the third switching device. The other end of the second current-limiting resistor is grounded. One end of the third switching device is the second end of the switching module, and the other end of the third switching device is grounded.

7. The wireless charging power-off circuit as described in any one of claims 1 to 3, characterized in that, The motor drive module includes a prompting motor drive module and a vibration motor drive module, and the second output terminal of the control module is connected to the prompting motor drive module and the vibration motor drive module respectively; When the control module is powered on, and when the switch module is detected to be on, it controls the prompt motor drive module to stop outputting drive signals to turn off the prompt motor. At the same time, it controls the vibration motor drive module to stop outputting drive signals to turn off the vibration motor.

8. The wireless charging power-off circuit as described in claim 7, characterized in that, The vibration motor drive module includes a seventeenth resistor, an eighteenth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a second diode, a seventh transistor, and a third connector; One end of the 27th resistor is connected to the power supply voltage. The other end of the 27th resistor is connected to one end of the 28th resistor, the second diode, and the first pin of the third connector. The anode of the second diode is connected to the collector of the 7th transistor and the second pin of the third connector. The base of the 7th transistor is connected to one end of the 18th resistor and one end of the 17th resistor. The other end of the 18th resistor and the emitter of the 7th transistor are connected to ground. The other end of the 17th resistor is the control terminal of the vibration motor drive module.

9. The wireless charging power-off circuit as described in claim 7, characterized in that, The prompt motor drive module includes a nineteenth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a thirteenth transistor, and a fourth connector; One end of the 26th resistor is connected to the power supply voltage, and the other end of the 26th resistor is connected to the first pin of the fourth connector. The collector of the 13th transistor is connected to the second pin of the fourth connector. The base of the 13th transistor is connected to one end of the 19th resistor and one end of the 25th resistor. The other end of the 25th resistor and the emitter of the 13th transistor are connected to ground.

10. A phototherapy device, characterized in that, include: The wireless charging power-off circuit, LED therapeutic lamp, and working motor according to any one of claims 1 to 9, wherein the LED therapeutic lamp is connected to the LED lamp driver module, and the working motor is connected to the motor driver module.

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