Phototherapy instrument and wireless charging shutdown circuit thereof

Abstract

The invention 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] The present invention relates to the technical field of physiotherapy devices, and in particular to a phototherapy device and a wireless charging shutdown circuit thereof. Background Art

[0002] In the prior art, phototherapy devices usually have wireless charging functions, but there are many safety hazards in the process of wireless charging. For example, many phototherapy devices still allow some functions such as motors or lights to continue to run while charging, which will cause the device to generate too much heat during the charging process, thereby bringing the risk of overheating and endangering the safety of users. In addition, the existing state switching mechanism often relies on simple physical connections or voltage detection, lacks accurate identification and comprehensive control of the charging status, and is prone to the phenomenon that some functions of the product are still running when it is not completely shut down, resulting in safety hazards during charging.

[0003] Therefore, the prior art has obvious deficiencies in the working state switching and safety protection mechanism during charging, and cannot fully ensure that all operating functions are turned off during wireless charging, thereby ensuring the safety of users. Summary of the invention

[0004] The embodiment of the present invention provides a light therapy device and a wireless charging shutdown circuit thereof to solve the above-mentioned technical problems.

[0005] A first aspect of an embodiment of the present invention provides a wireless charging shutdown circuit for a phototherapy device, comprising: a wireless charging module, a switch module, a control module, an LED lamp driving module, and a motor driving 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 starts;

[0007] The detection end of the control module is connected to the second end of the switch module, the first output end of the control module is connected to the control end of the LED lamp driving module, and the second output end of the control module is connected to the control end of the motor driving module;

[0008] When the control module is in the power-on state and detects that the switch module is turned on, it controls the LED lamp driving module to stop outputting the driving signal to turn off the LED treatment lamp. At the same time, it controls the motor driving module to stop outputting the driving signal to turn off the working motor.

[0009] Optionally, the wireless charging shutdown circuit further includes a wireless charging indicator light, the status output end of the wireless charging module is connected to the detection end of the control module, and the third output end of the control module is connected to the control end of the wireless charging indicator light;

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

[0011] When the control module detects that the wireless charging module has completed charging, the control module controls the wireless charging indicator light to be always on.

[0012] Optionally, the wireless charging shutdown circuit further includes a power supply module, the first voltage output end of the wireless charging module is connected to the control end of the power supply module, the second voltage output end of the wireless charging module is connected to the voltage input end of the power supply module, and the voltage output end of the power supply module is connected to the voltage input end of the control module;

[0013] When the control module is in a shutdown state, the wireless charging module enables the power supply module to supply power to the control module when wireless charging starts, so as to turn 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 switch device is the voltage input end of the power supply module, the other end of the first switch device is the voltage output end of the power supply module, one end of the second switch device is connected to the control end of the first switch device, the other end of the second switch device is grounded, and the control end of the second switch device is the control end of the power supply module;

[0016] When the control module is in the shutdown state, the wireless charging module outputs a conduction control signal to the second switch device when starting wireless charging, so that the second switch device is turned on, and then the first switch device is turned on and supplies power to the control module, so that the control module is turned on.

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

[0018] The voltage output end of the wireless charging coil is connected to the voltage input pin of the wireless charging chip and constitutes the first voltage output end of the wireless charging module. The status output pin of the wireless charging chip is the status output end of the wireless charging module.

[0019] Optionally, the switch module includes a first current limiting resistor, a second current limiting resistor and a third switch device, one end of the first current limiting resistor is the first end of the switch module, the second end of the first current limiting resistor is respectively connected to one end of the second current limiting resistor and the control end of the third switch device, the other end of the second current limiting resistor is grounded, one end of the third switch device is the second end of the switch module, and the other end of the third switch device is grounded.

[0020] Optionally, the motor driving module includes a prompt motor driving module and a vibration motor driving module, and the second output end of the control module is connected to the prompt motor driving module and the vibration motor driving module respectively;

[0021] When the control module is in the power-on state and detects that the switch module is turned on, the prompt motor driving module is controlled to stop outputting the driving signal to turn off the prompt motor. At the same time, the vibration motor driving module is controlled to stop outputting the driving signal to turn off the vibration motor.

[0022] Optionally, the vibration motor driving 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 twenty-seventh resistor is connected to the power supply voltage, the other end of the twenty-seventh resistor is respectively connected to one end of the twenty-eighth resistor, the second diode and the first pin of the third connector, the anode of the second diode is respectively connected to the collector of the seventh transistor and the second pin of the third connector, the base of the seventh transistor is respectively connected to one end of the eighteenth resistor and one end of the seventeenth resistor, the other end of the eighteenth resistor and the emitter of the seventh transistor are connected to the ground, and the other end of the seventeenth resistor is the control end of the vibration motor drive module.

[0024] Optionally, the prompt motor driving module includes a nineteenth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a tenth transistor and a fourth connector;

[0025] One end of the twenty-sixth resistor is connected to the power supply voltage, the other end of the twenty-sixth resistor is connected to the first pin of the fourth connector, the collector of the triode is connected to the second pin of the fourth connector, the base of the triode is respectively connected to one end of the nineteenth resistor and one end of the twenty-fifth resistor, and the other end of the twenty-fifth resistor and the emitter of the triode are connected to ground.

[0026] A second aspect of an embodiment of the present invention provides a light therapy device, comprising: the wireless charging shutdown circuit described in the first aspect, an LED therapy lamp and a working motor, wherein the LED therapy lamp is connected to the LED lamp driving module, and the working motor is connected to the motor driving module.

[0027] The technical effect of the embodiment of the present invention is: when the wireless charging module starts working, the switch module is turned on, the control module can automatically detect and respond, and immediately stop the output of the LED light driving module and the motor driving module, ensuring that the LED treatment light and the working motor are automatically turned off during charging, avoiding the device from generating excess heat during the charging process, preventing the risk of overheating, and effectively protecting the safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a first structural schematic diagram of a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0029] Figure 2 This is a second structural schematic diagram of a wireless charging shutdown circuit of a phototherapy device provided in the first embodiment of the present invention;

[0030] Figure 3 It is a circuit diagram of a wireless charging indicator light in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0031] Figure 4 It is a third structural schematic diagram of a wireless charging shutdown circuit of a phototherapy device provided in the first embodiment of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a power supply module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0033] Figure 6 It is a circuit diagram of a power supply module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0034] Figure 7 It is a structural schematic diagram of a wireless charging module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0035] Figure 8 It is a circuit diagram of a wireless charging module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of a switch module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0037] Fig.10 It is a circuit diagram of a switch module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0038] Fig.11 This is a fourth structural schematic diagram of a wireless charging shutdown circuit of a phototherapy device provided in the first embodiment of the present invention;

[0039] Fig.12 It is a circuit diagram of a vibration motor driving module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0040] Fig.13 It is a circuit diagram of a prompt motor drive module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0041] Fig.14 It is a circuit diagram of an LED lamp driving module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0042] Fig.15 It is a circuit diagram of a control module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0043] Fig.16 It is a circuit diagram of a voltage conversion module in a wireless charging shutdown circuit of a phototherapy device provided in Embodiment 1 of the present invention;

[0044] In the figure: 10, wireless charging shutdown circuit; 101, wireless charging module; 102, switch module; 103, control module; 104, LED lamp drive module; 105, motor drive module; 106, LED treatment lamp; 107, working motor; 108, wireless charging indicator light; 109, power supply module; 110, vibration motor drive module; 111, wireless charging coil; 112, wireless charging chip; 120, vibration motor; 121, first current limiting resistor; 122, second current limiting resistor; 123, third switch device; 191, first switch device; 192, second switch device. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, providing these embodiments will make the disclosure thorough and complete and fully convey the scope of the present invention to those skilled in the art. In the accompanying drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity. The same reference numerals throughout represent the same elements.

[0047] It should be understood that when an element or layer is referred to as being "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. In contrast, when an element is referred to as being "directly on, directly adjacent to, directly connected to or directly coupled to other elements or layers, there may be 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, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present invention, the first element, component, region, layer or part discussed below may be represented as a second element, component, region, layer or part.

[0048] Spatially relative terms such as "under," "beneath," "below," "under," "above," "above," and the like may be used herein for ease of description to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that the spatially relative terms are intended to include different orientations of the device in use and operation in addition to the orientations shown in the figures. For example, if the device in the accompanying drawings is flipped, then the elements or features described as "under other elements" or "under" or "under" will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0049] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0050] In order to fully understand the present invention, detailed structures and steps will be presented in the following description to illustrate the technical solutions proposed by the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0051] Embodiment 1

[0052] This embodiment 1 provides a wireless charging shutdown circuit 10 of 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 lamp driving module 104 and a motor driving 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 end of the control module 103 is connected to the second end of the switch module 102, the first output end of the control module 103 is connected to the control end of the LED lamp driving module 104, and the second output end of the control module 103 is connected to the control end of the motor driving module 105;

[0055] When the control module 103 is in the on state and detects that the switch module 102 is turned on, the LED lamp driving module 104 is controlled to stop outputting the driving signal to turn off the LED treatment lamp 106. At the same time, the motor driving module 105 is controlled to stop outputting the driving signal to turn off the working motor 107.

[0056] Among them, the wireless charging module 101 senses the wireless charging signal and provides charging power for the device. The wireless charging module 101 generally includes a wireless charging receiving coil, a rectifier circuit, a voltage regulating circuit, etc. The function of the wireless charging module 101 is to enable the device to charge without physical contact. When the wireless charging module 101 detects the charging state, its first voltage output terminal outputs a signal to the switch module 102 to start the charging process, and its second voltage output terminal outputs a voltage to charge the energy storage module, and the energy storage module (not shown) can be a battery. The switch module 102 controls the on and off of the circuit according to the output signal of the wireless charging module 101. The switch module 102 can be a field effect transistor (MOSFET) or a bipolar transistor (BJT) or a relay. The switch module 102 is turned on at the beginning of charging by receiving the signal of the wireless charging module 101, so that the control module 103 can identify the charging state and trigger the subsequent shutdown operation to prevent the device from continuing to run 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 driving signal for the LED treatment lamp 106, and works 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 the driving signal to ensure that the LED treatment lamp 106 is turned off, reducing power consumption and overheating risks during charging. The motor driver module 105 provides a driving signal to the working motor 107 in the device to make the motor run. The motor driver module 105 stops outputting the driving signal under the signal control of the control module 103, ensuring that the working motor 107 is completely turned off during the wireless charging process, thereby avoiding safety hazards caused by the continued operation of the device.

[0057] The working process of the first 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, starts to obtain energy from the transmitting end, and outputs electrical energy for charging the battery. At the same time, the wireless charging module 101 connects the control end of the switch module 102 through the first voltage output end, triggering the switch module 102 to turn on, indicating that the device enters the wireless charging state. After the switch module 102 is turned on, the detection end of the control module 103 detects the on state of the switch module 102, and then detects that the device is already in the wireless charging state. The control module 103 sends a control signal to the LED lamp driving module 104 through its first output end, controls it to stop outputting the driving signal, and turns off the LED treatment lamp 106 in the device, ensuring that no additional power is consumed or excessive heat is generated during charging. At the same time, the control module 103 sends a control signal to the motor driving module 105 through its second output end, controls it to stop providing the driving signal, thereby turning off the working motor 107 in the device, ensuring that the motor does not continue to run during charging.

[0058] The technical effect of the first embodiment of the present invention is that when the wireless charging module of the present technical solution starts to work, the switch module is turned on, and the control module can automatically detect and respond, immediately stop the output of the LED light drive module and the motor drive module, and ensure that the LED treatment light and the working motor are automatically turned off during charging, so as to avoid the device from generating excess heat during the charging process, prevent the risk of overheating, and effectively protect the safety of the user. Through the cooperation of the wireless charging module and the switch module, the precise state switching of the device when entering the wireless charging state is realized. The control module can automatically cut off all treatment-related function outputs by detecting the state of the switch module in real time, ensuring that the device is completely turned off during wireless charging, and effectively avoiding the safety hazard of the device still running while charging.

[0059] As the second structure of the wireless charging shutdown circuit, Figure 2 As shown, the wireless charging shutdown circuit 10 also includes a wireless charging indicator light 108. The status output end of the wireless charging module 101 is connected to the detection end of the control module 103, and the third output end of the control module 103 is connected to the control end of the wireless charging indicator light 108. When the control module 103 detects that the wireless charging module 101 is charging, the wireless charging indicator light 108 is controlled to flash; when the control module 103 detects that the wireless charging module 101 has completed charging, the wireless charging indicator light 108 is controlled to be always on.

[0060] Among them, the control module 103 can also monitor the status of the wireless charging module 101, and control the operating functions of the device and the wireless charging indicator light 108 according to different charging states. When it is detected that the device is charging, the control module 103 turns off the LED treatment light 106 and the working motor 107 in the device, and controls the wireless charging indicator light 108 to flash. When it is detected that the device is fully charged, the wireless charging indicator light 108 is controlled to be always on, and the device is kept in the 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 a powered luminous material.

[0061] The technical effect of this implementation is that the wireless charging indicator light intuitively feedbacks the charging status of the device by flashing or being always on, providing the user with clear charging progress information. The flashing and always on states allow the user to easily distinguish whether the device is still charging or has been fully charged, avoiding unnecessary checks and improving the convenience of the user experience.

[0062] As an example of a wireless charging indicator light, 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, the anode of the light emitting diode LED1 is connected to one end of the twenty-first resistor R21, and the other end of the twenty-first resistor R21 is connected to the power supply voltage BAT.

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

[0064] As a third structure of the wireless charging shutdown circuit 10, Figure 4 As shown, the wireless charging shutdown circuit 10 also includes a power supply module 109, a first voltage output end of the wireless charging module 101 is connected to the control end of the power supply module 109, and a second voltage output end of the power supply module 109 is connected to the voltage input end of the control module 103; when the control module 103 is in the shutdown state, the wireless charging module 101 enables the power supply module 109 to supply power to the control module 103 when starting wireless charging, so as to turn on the control module 103.

[0065] The power supply module 109 is used to provide power to the control module 103 when wireless charging starts, 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 related control logic operations.

[0066] The working process of this embodiment is as follows: when the device is not in a wireless charging state or is not powered, the control module 103 is in a shutdown state, the power supply module 109 does not provide power to the control module 103, and the entire system is in a low power consumption or standby state. When the device starts wireless charging, the first voltage output end of the wireless charging module 101 will output a signal to the control end 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 end of the control module 103 to start the control module 103. After receiving the power from the power supply module 109, the control module 103 switches from the shutdown state to the power-on state and starts to execute the logic control of the device. The control module 103 then controls the wireless charging indicator light 108 to flash. When it is detected that the device is fully charged, the wireless charging indicator light 108 is controlled to be always on.

[0067] The technical effect of this implementation is that the power supply module ensures that when wireless charging starts, the device can automatically start from the shutdown state, ensuring that the control module can operate normally without the user having to manually start the device, thereby improving the intelligence of the device and the user experience.

[0068] As an implementation of the power supply module 109, Figure 5 As shown, the power supply module 109 includes a first switch device 191 and a second switch device 192; one end of the first switch device 191 is a voltage input end of the power supply module 109, the other end of the first switch device 191 is a voltage output end of the power supply module 109, one end of the second switch device 192 is connected to the control end of the first switch device 191, the other end of the second switch device 192 is grounded, and the control end of the second switch device 192 is the control end of the power supply module 109; when the control module 103 is in the shutdown state, the wireless charging module 101 outputs a conduction control signal to the second switch device 192 when starting wireless charging, so that the second switch device 192 is turned on, and then the first switch device 191 is turned on and supplies power to the control module 103, so that the control module 103 is turned on.

[0069] As an example of the power supply module 109, Figure 6As shown, the first switch device 191 is a third MOS tube Q3, the second switch device 192 is a fourth triode Q4, the power supply module 109 also includes a first MOS tube Q1, a second triode Q2, a sixth MOS tube 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 MOS tube Q1. The gate of the first MOS tube Q1 is respectively 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 respectively 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 respectively connected to the second voltage output end of the wireless charging module 101, one end of the seventh resistor R7 and the third MO The source of the S transistor Q3 and the drain of the third MOS transistor Q3 are the voltage output end of the power supply module 109. The gate of the third MOS transistor Q3 is respectively connected to the other end of the seventh resistor R7, the collector of the second triode Q2, the collector of the fourth triode Q4 and the drain of the sixth MOS transistor Q6. The emitter of the fourth triode Q4 is grounded. The base of the fourth triode 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 commonly connected as the control end of the power supply module 109. The other end of the eleventh resistor R11 is grounded. The source of the sixth MOS transistor Q6, the emitter of the second triode Q2, one end of the eighth resistor R8, the other end of the fourth resistor R4 and the source of the first MOS transistor Q1 are commonly connected to the ground. The gate of the sixth MOS transistor Q6 is respectively 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 an implementation method, Figure 7 As shown, the wireless charging module 101 includes a wireless charging coil 111 and a wireless charging chip 112; the voltage output end of the wireless charging coil 111 is connected to the voltage input pin of the wireless charging chip 112 and constitutes the first voltage output end of the wireless charging module 101, and the status output pin of the wireless charging chip 112 is the status output end of the wireless charging module 101.

[0071] Among them, 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, transmits the alternating current generated by electromagnetic induction to the wireless charging chip 112, and outputs voltage to the switch module 102. The wireless charging chip 112 receives the alternating current provided by the wireless charging coil 111, rectifies and stabilizes it, and converts it into direct current suitable for use by the device. At the same time, the chip manages the entire charging process and outputs a charging status signal.

[0072] The technical effect 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 converts and manages the power through the wireless charging chip, ensuring that the device is efficiently and safely charged during wireless charging.

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

[0074] As an implementation of the switch module 102, Fig. 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 respectively connected to one end of the second current limiting resistor 122 and the control end 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, and the other end of the third switch device 123 is grounded.

[0075] Wherein, the first current limiting resistor 121 is used to limit the current passing through the circuit, protect the subsequent switch device from being affected by excessive current, and prevent the switch device from being damaged. The second current limiting resistor 122 forms a voltage divider network with the first current limiting resistor 121, and further controls the current passing through the control end of the third switch device 123. The third switch device 123 controls the conduction and disconnection of the current according to the change of the control end voltage. It can usually be a field effect transistor (MOSFET) or a bipolar transistor (BJT). When the current of the first current limiting resistor 121 is divided by voltage, a suitable voltage acts on the control end of the switch device (such as the gate of a MOSFET), and the switch device is turned on, allowing the signal to pass. On the contrary, when the control end voltage is lower than the threshold, the switch device is turned off and the signal is blocked.

[0076] The working process of this embodiment is as follows: when the wireless charging module 101 starts working, a signal is sent to the switch module 102, and the current passes through the first current limiting resistor 121 and the second current limiting resistor 122 to form a voltage divider, control the control terminal voltage of the third switch device 123, and control whether the third switch device 123 is turned on or not. 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 driving module 104 to stop output, turns off the LED treatment lamp 106, and controls the motor driving module 105 to stop output, and turns off the working motor 107.

[0077] The technical effect of this embodiment is that the LED treatment light and the working motor can be automatically turned off when wireless charging starts, 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 switch module not only protects the circuit components from overcurrent damage, but also ensures the stable operation of the switch device, thereby improving the stability and safety of the entire circuit.

[0078] As an example, Fig.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, the third switching device 123 is the ninth transistor Q9, one end of the first resistor R1 is connected, and the other end of the first resistor R1 is respectively 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, and the emitter of the ninth transistor Q9 are grounded.

[0079] As a fourth structure of the wireless charging shutdown circuit 10, Fig.11 As shown, the motor driving module 105 includes a prompt motor driving module 112 and a vibration motor driving module 110, and the second output end of the control module 103 is connected to the prompt motor driving module 112 and the vibration motor driving module 110 respectively;

[0080] When the control module 103 is in the power-on state and detects that the switch module 102 is turned on, the prompt motor driving module 112 is controlled to stop outputting the driving signal to turn off the prompt motor 113. At the same time, the vibration motor driving module 110 is controlled to stop outputting the driving signal to turn off the vibration motor 120.

[0081] Among them, the prompt motor driving module 112 drives the prompt motor 113, which is used to provide visual, auditory or tactile prompt signals to remind the user of the status or working mode of the device. When the device is in working state, the control module 103 sends a driving signal to the prompt motor driving module 112, and the prompt motor 113 works accordingly to provide the user with working prompts (such as rotation, beeping, etc.). When it is detected that the switch module 102 is turned on (indicating that the device enters the wireless charging mode), the control module 103 stops sending a driving signal to the prompt motor driving module 112, and the prompt motor 113 stops working accordingly. The vibration motor driving module 110 is used to drive the vibration motor 120 to generate a vibration signal, which is usually used for the specific functions of the phototherapy instrument to provide vibration therapy or feedback. When the device is in working state, the control module 103 sends a driving signal to the vibration motor driving module 110, and the vibration motor 120 starts working to provide vibration therapy effects or feedback. When it is detected that the switch module 102 is turned on (that is, wireless charging starts), the control module 103 stops sending a driving signal to the vibration motor driving module 110, and the vibration motor 120 stops operating. The control module 103 controls the working 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 starts. When it is detected that the switch module 102 is turned on (wireless charging starts), 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. Thereafter, the device enters the wireless charging state, and each motor module remains turned off until charging is completed or the device re-enters the working state.

[0082] The technical effect of this implementation is to ensure that the device automatically turns off all motor modules during wireless charging to avoid unnecessary power consumption and interference. Through effective switch control and signal detection, it not only improves the safety of the device, but also extends the service life of the motor, while optimizing the user's operating experience, making the device more intelligent and energy-saving.

[0083] As an example of the vibration motor driving module 110, Fig.12As shown, the vibration motor driving 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 respectively 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 respectively 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 respectively 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 commonly connected to the ground, and the other end of the seventeenth resistor R17 is the control end of the vibration motor driving module 110.

[0084] As an example of prompting the motor driving module 112, Fig.13 As shown, the prompt motor driving module 112 includes a nineteenth resistor R19, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a triode Q10 and a fourth connector J4; the first end of the twenty-sixth resistor R26 is connected to the 3.0V power supply voltage, the second end of the twenty-sixth resistor R26 is connected to the pin 1 of the fourth connector J4, the collector of the triode Q10 is connected to the pin 2 of the fourth connector J4, the base of the triode Q10 is respectively 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 triode Q10 are connected to the ground.

[0085] As an example of the LED lamp driving module 104, Fig.14 As shown, the LED lamp driving module 104 includes a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a fifth MOS transistor Q5 and a second connector J2, a pin 1 of the second connector J2 is connected to one end of the thirteenth resistor R13, the other end of the thirteenth resistor R13 is connected to a 5V voltage, a pin 2 of the second connector J2 is connected to the drain of the fifth MOS transistor Q5, a gate of the fifth MOS transistor Q5 is respectively 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 MOS transistor Q5 are connected to the ground, the other end of the fifteenth resistor R15 and one end of the fourteenth resistor R14 are connected to the control module 103, and the other end of the fourteenth resistor R14 is grounded.

[0086] As an example of the control module 103, Fig.15As shown, the control module 103 is a third chip U3, the pin 1 of the third chip U3 is respectively connected to BAT, one end of the tenth capacitor C10 and one end of the second capacitor C2, the other end of the tenth capacitor C10 and the other end of the second capacitor C2 are connected to the ground, the 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. The pin 10 of the third chip U3 is also connected to the voltage conversion module, such as Fig.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 respectively connected to one end of the thirteenth capacitor C13 and one end of the sixteenth capacitor C16, the other end of the thirteenth capacitor C13 and the other end of the sixteenth capacitor C16 are connected to the ground, pin 3 of the fourth chip U4 is connected to one end of the thirty-seventh resistor R37, 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, 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, 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 working process of the above circuit is: when the host is turned off, after the wireless charging base is plugged into 5V, the host is placed on the base, and the first coil J5 is received for inductive coupling with the base coil, and the host starts charging. At the same time, the output signal ACN of the first coil J5 is high level, turning on the transistor Q4 in the power supply module, thereby pulling down the G pole of the third MOS tube Q3, the third MOS tube Q3 works, the BAT voltage is turned on, and the first chip U1 is powered. The first chip U1 starts working, the light-emitting diode LED1 starts to light up, and only pins 8, 9, and 13 of all peripheral GPIO control ports work, and the other GPIOs are all in the closed state, without any operation. When the first chip U1 detects that the state of pin 7STA of the second chip U2 is in the high-impedance state for 0.5S, the normal charging status indicator light flashes, and when STA is continuously output high, it is fully charged and the indicator light is always on. When the host is turned on, whether it is A mode to turn on the working motor, B mode to turn on the treatment light, or in the standby state without operation, when the wireless charging base is plugged into 5V, the host is placed on the base in the turned-on state, and the first receiving coil J5 is inductively coupled with the base coil, and the host starts charging. The first chip U1 detects that the state of pin 7 of the wireless charging receiving second chip U2 is in a 0.5S high-impedance state, the pin 12 of the first chip U1 is high level, ACN is high level, and after the voltage is divided by the first resistor R1 and the second resistor R2, the ninth transistor Q9 is turned on at the B pole (base) of the transistor, and the C pole (collector) of the ninth transistor Q9 is pulled down. At the same time, the pin 12 of the first chip U1 is low level. At this time, the first chip U Pin 10 of chip U1 is the low enable level EN1, the boost IC of the fourth chip U4 turns off the output, the PWM_L output by the first chip U1 is a low level, the negative pole of the LED lamp driver module is disconnected, and the LED treatment lamp is turned off. At the same time, the PWM_M and PWM_M2 output by the first chip U1 are low levels, 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 work, and the other GPIOs are in the off state, without any 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 the high-impedance state for 0.5S, the normal charging status indicator light flashes. When STA is continuously output high, it is fully charged and the indicator light is always on.

[0088] Embodiment 2

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

[0090] Among them, the phototherapy device includes a wireless charging base and a wireless charging host. After the wireless charging base is plugged into 5V, it enters the standby working state and the white light indicator is on. The host peripherals are divided into an indicator light, two buttons, a prompt motor, a vibrating working motor, and a treatment light board. Long press the A button for 2 seconds to turn on the machine, the white light indicator is on, and the prompt motor vibrates for 5 seconds. Short press the A button, the working motor starts working, works for 30 seconds, pauses for 3 seconds in the middle, and then continues to work. A course of treatment lasts 10 minutes; short press the B button to turn on the light in the treatment area. The working wavelength of the light is 630+830nm, and the working time is 3 seconds after pausing for 3 seconds every 30 seconds. The time for a course of treatment is 10 minutes. Regardless of the working mode of the product, when it is placed in the charging base for wireless charging, the function will be turned off, the power-off charging state will be entered, and the white light will flash. Through wireless charging, the product turns off all operations to prevent the product from causing harm to people due to heating or other problems during charging. Please refer to Example 1 for the specific working process, which will not be repeated here.

[0091] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A wireless charging shutdown circuit for a phototherapy device, characterized in that: include: Wireless charging module, switch module, control module, LED light drive module and motor drive 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 starts; The detection end of the control module is connected to the second end of the switch module, the first output end of the control module is connected to the control end of the LED lamp driving module, and the second output end of the control module is connected to the control end of the motor driving module; When the control module is in the on state and detects that the switch module is turned on, it controls the LED lamp driving module to stop outputting the driving signal to turn off the LED treatment lamp. At the same time, it controls the motor driving module to stop outputting the driving signal to turn off the working motor.

2. The wireless charging shutdown circuit according to claim 1, characterized in that: The wireless charging shutdown circuit also includes a wireless charging indicator light, the status output end of the wireless charging module is connected to the detection end of the control module, and the third output end of the control module is connected to the control end of the wireless charging indicator light; When the control module detects that the wireless charging module is charging, the control module controls the wireless charging indicator light to flash; When the control module detects that the wireless charging module has completed charging, the control module controls the wireless charging indicator light to be always on.

3. The wireless charging shutdown circuit according to claim 2, characterized in that: The wireless charging shutdown circuit also includes a power supply module, a first voltage output end of the wireless charging module is connected to a control end of the power supply module, a second voltage output end of the wireless charging module is connected to a voltage input end of the power supply module, and a voltage output end of the power supply module is connected to a voltage input end of the control module; When the control module is in a shutdown state, the wireless charging module enables the power supply module to supply power to the control module when wireless charging starts, so as to turn on the control module.

4. The wireless charging shutdown circuit according to claim 3, characterized in that: The power supply module includes a first switch device and a second switch device; One end of the first switch device is the voltage input end of the power supply module, the other end of the first switch device is the voltage output end of the power supply module, one end of the second switch device is connected to the control end of the first switch device, the other end of the second switch device is grounded, and the control end of the second switch device is the control end of the power supply module; When the control module is in the shutdown state, the wireless charging module outputs a conduction control signal to the second switch device when starting wireless charging, so that the second switch device is turned on, and then the first switch device is turned on and supplies power to the control module, so that the control module is turned on.

5. The wireless charging shutdown circuit according to 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 end of the wireless charging coil is connected to the voltage input pin of the wireless charging chip and constitutes the first voltage output end of the wireless charging module. The status output pin of the wireless charging chip is the status output end of the wireless charging module.

6. The wireless charging shutdown circuit according to any one of claims 1 to 3, characterized in that: The switch module includes a first current limiting resistor, a second current limiting resistor and a third switch device, one end of the first current limiting resistor is the first end of the switch module, the second end of the first current limiting resistor is respectively connected to one end of the second current limiting resistor and the control end of the third switch device, the other end of the second current limiting resistor is grounded, one end of the third switch device is the second end of the switch module, and the other end of the third switch device is grounded.

7. The wireless charging shutdown circuit according to any one of claims 1 to 3, characterized in that: The motor driving module includes a prompt motor driving module and a vibration motor driving module, and the second output end of the control module is connected to the prompt motor driving module and the vibration motor driving module respectively; When the control module is in the power-on state and detects that the switch module is turned on, the prompt motor driving module is controlled to stop outputting the driving signal to turn off the prompt motor. At the same time, the vibration motor driving module is controlled to stop outputting the driving signal to turn off the vibration motor.

8. The wireless charging shutdown circuit according to claim 7, characterized in that: The vibration motor driving 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 twenty-seventh resistor is connected to the power supply voltage, the other end of the twenty-seventh resistor is respectively connected to one end of the twenty-eighth resistor, the second diode and the first pin of the third connector, the anode of the second diode is respectively connected to the collector of the seventh transistor and the second pin of the third connector, the base of the seventh transistor is respectively connected to one end of the eighteenth resistor and one end of the seventeenth resistor, the other end of the eighteenth resistor and the emitter of the seventh transistor are connected to the ground, and the other end of the seventeenth resistor is the control end of the vibration motor drive module.

9. The wireless charging shutdown circuit according to claim 7, characterized in that: The prompt motor driving module includes a nineteenth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a tenth transistor and a fourth connector; One end of the twenty-sixth resistor is connected to the power supply voltage, the other end of the twenty-sixth resistor is connected to the first pin of the fourth connector, the collector of the triode is connected to the second pin of the fourth connector, the base of the triode is respectively connected to one end of the nineteenth resistor and one end of the twenty-fifth resistor, and the other end of the twenty-fifth resistor and the emitter of the triode are connected to the ground.

10. A phototherapy device, characterized in that: include: The wireless charging shutdown circuit, LED therapeutic lamp and working motor as described in any one of claims 1 to 9, wherein the LED therapeutic lamp is connected to the LED lamp driving module, and the working motor is connected to the motor driving module.

Images