Control circuit for heating massage equipment

Abstract

A control circuit for heating massage equipment is provided with a master control unit, a TENS stimulation unit, a slave control unit and a heating unit, a first end of the master control unit is electrically connected with an input unit, a second end of the master control unit is electrically connected with a first end of the TENS stimulation unit, a third end of the master control unit is electrically connected with a first end of the slave control unit, and a second end of the master control unit is electrically connected with a second end of the TENS stimulation unit. The second end of the slave control unit is connected with the heating unit. According to the control circuit of the heating massage equipment, the TENS stimulation treatment function and the heating function are achieved through the two control units respectively, the variety and the number of input instructions received by the main control unit are widened, and the use functions of the heating massage equipment are enriched; the slave control unit can independently control the TENS stimulation unit according to the received instruction, so that the operation stability of the heating massage equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the circuit field of heating massage equipment, and in particular relates to a control circuit for heating massage equipment. Background Art

[0002] Transcutaneous Electrical Nerve Stimulation (TENS) is a non-drug treatment method that stimulates nerve fibers by placing electrodes on the patient's skin surface and sending electrical signals of specific frequency and current. It is widely used in massage equipment.

[0003] However, the control circuits of existing massage devices are highly specialized and have single functions, making it difficult to quickly migrate between various massage devices. In addition, the control functions and control units are highly bound, and the reliability and stability of the operation of the massage devices are also lacking. Utility Model Content

[0004] The purpose of the utility model is to provide a control circuit for heating massage equipment to solve the technical problems existing in the prior art.

[0005] A control circuit for a heating massage device comprises a main control unit, a TENS stimulation unit, a slave control unit, and a heating unit, wherein:

[0006] A first end of the main control unit is electrically connected to the input unit, a second end of the main control unit is electrically connected to a first end of the TENS stimulation unit, a third end of the main control unit is electrically connected to a first end of the slave control unit, and a second end of the slave control unit is connected to the heating unit; the main control unit is used to receive the device working instruction sent by the input unit, and parse the device working determination instruction to obtain device control information, and the device control information includes TENS stimulation unit working information and / or heating unit working information; when the device control information includes TENS stimulation unit working information, the main control unit sends the TENS stimulation unit working information to the TENS stimulation unit; when the device control information includes heating unit working information, the main control unit sends the heating unit working information to the slave control unit; the TENS stimulation unit performs TENS stimulation treatment according to the received TENS stimulation unit working information; the slave control unit is used to receive the heating unit working information, parse the heating unit working information, and send a heating unit control instruction to the heating unit; the heating unit performs heating according to the received heating unit control instruction.

[0007] Preferably, the control circuit further includes: a vibration unit; the vibration unit is connected to the third end of the main control unit; the vibration unit is used to receive a vibration work instruction sent by the main control unit, thereby vibrating.

[0008] Preferably, the TENS stimulation unit comprises: a TENS discharge module; the TENS discharge module is electrically connected to the main control unit; the TENS discharge module is used to receive the TENS discharge instruction sent by the main control unit, so as to perform nerve electrical stimulation treatment.

[0009] Preferably, the main control unit includes: a main control chip U1; the TENS discharge module includes: a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, a fifth transistor Q5, a sixth transistor Q6, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and an eighth resistor R8; the emitters of the first transistor Q1 and the fourth transistor Q4 are connected and connected to the TENS discharge working voltage VH+; the collector of the first transistor Q1 is connected to the collector of the second transistor Q2; the emitter of the second transistor Q2 is grounded; after the third resistor R3 is connected in parallel with the fourth resistor R4, one end is connected to the base of the first transistor Q1, and the other end is connected to the collector of the third transistor Q3; the emitter of the third transistor Q3 is grounded, and the base of the third transistor Q3 is connected to the first TENS discharge control pin TE of the main control chip U1 through the first resistor R1. NS1; the second resistor R2 is used to connect the base and emitter of the third transistor Q3; the collector of the fourth transistor Q4 is connected to the collector of the fifth transistor Q5; the emitter of the fifth transistor Q5 is grounded; after the seventh resistor R7 is connected in parallel with the eighth resistor R8, one end is connected to the base of the fourth transistor Q4, and the other end is connected to the collector of the sixth transistor Q6; the emitter of the sixth transistor Q6 is grounded, and the base of the sixth transistor Q6 is connected to the second TENS discharge control pin TENS2 of the main control chip U1 through the fifth resistor R5; the sixth resistor R6 is used to connect the base and emitter of the sixth transistor Q6; the base of the third transistor Q3 is connected to the base of the fifth transistor Q5, and the base of the second transistor Q2 is connected to the base of the sixth transistor Q6; the collector of the first transistor Q1 is also used as the output end of the TENS discharge positive signal TENS+, and the collector of the fourth transistor Q4 is also used as the output end of the TENS discharge negative signal TENS-.

[0010] Preferably, the TENS stimulation unit also includes: a TENS boost module; the TENS boost module is electrically connected to the main control unit and the TENS discharge module; the TENS boost module is used to receive a TENS boost control instruction sent by the main control unit, thereby boosting the battery voltage B+ and outputting a TENS discharge working voltage VH+ to the TENS discharge module.

[0011] Preferably, the main control unit includes: a main control chip U1; the TENS boost module includes: a seventh MOS field effect transistor (also known as a MOS field effect transistor, metal-oxide semiconductor Field Effect Transistor, MOS-FET in English) Q7, an eighth transistor Q8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a first inductor L1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a first diode D1, and a second diode D2; the first end of the first inductor L1 is connected to the battery voltage B+, and the first end of the first inductor L1 is also connected to the first capacitor C The first end of the first inductor L1 is connected to the drain of the seventh MOS field effect transistor Q7, the first end of the ninth resistor R9, and the positive electrode of the first diode D1; the second end of the first capacitor C1 is grounded; the gate of the seventh MOS field effect transistor Q7 is connected to the TENS boost control pin VH_PWM of the main control chip U1, the source of the seventh MOS field effect transistor Q7 is grounded, and the tenth resistor R10 is connected to the gate and source of the seventh MOS field effect transistor Q7; the second end of the ninth resistor R9 is connected to the first end of the second capacitor C2, and the second end of the second capacitor C2 is grounded; the first The cathode of the diode D1 is connected to the first end of the third capacitor C3, and the second end of the third capacitor C3 is grounded; the first end of the fourth capacitor C4 is connected to the cathode of the first diode D1, and the second end of the fourth capacitor C4 is grounded; the cathode of the second diode D2 is connected to the first end of the third capacitor C3, and the anode of the second diode D2 is grounded; the first end of the eleventh resistor R11 is connected to the first end of the third capacitor C3, the second end of the eleventh resistor R11 is connected to the first end of the twelfth resistor R12 and the first end of the fifth capacitor C5, the second end of the twelfth resistor R12 and the first end of the fifth capacitor C5 The two ends are grounded, and the first end of the twelfth resistor R12 is also connected to the TENS discharge feedback voltage pin V_FB of the main control chip U1; after the thirteenth resistor R13 and the fourteenth resistor R14 are connected in parallel, one end is connected to the first end of the third capacitor C3, and the other end is connected to the collector of the eighth transistor Q8; the emitter of the eighth transistor Q8 is grounded, and the base of the eighth transistor Q8 is connected to the TENS fast discharge pin VH_DIS of the main control chip U1 through the fifteenth resistor R15; the first end of the third capacitor C3 also serves as the output end of the TENS discharge working voltage VH+.

[0012] Preferably, the TENS stimulation unit further includes: a TENS circuit detection module; the TENS circuit detection module is electrically connected to the TENS discharge module and the main control unit; the TENS circuit detection module is used to detect whether the TENS circuit is formed and maintained. If the TENS circuit is not formed or is disconnected, the TENS circuit detection module outputs a TENS output stop instruction to the main control unit.

[0013] Preferably, the main control unit includes: a main control chip U1; the TENS circuit detection module includes: a bidirectional optocoupler unit U2, a sixteenth resistor R16, a seventeenth resistor R17, and an eighteenth resistor R18; the first end of the bidirectional optocoupler unit U2 is connected to the TENS discharge negative signal TENS- through the sixteenth resistor R16, the second end of the bidirectional optocoupler unit U2 is connected to the TENS discharge positive signal TENS+, the third end of the bidirectional optocoupler unit U2 is connected to the battery supply voltage VBAT through the seventeenth resistor R17, and the fourth end of the bidirectional optocoupler unit U2 is connected to the TENS contact pin TOUCH_H of the main control chip U1 through the eighteenth resistor R18.

[0014] Preferably, it is characterized in that the heating unit also includes: a main heating switch circuit and multiple heating plate control circuits; the main heating switch circuit is connected to the main control unit, used to receive the main heating switch control instructions of the main control unit, and provide a heating working voltage for the heating plate control circuit; the heating plate control circuit is connected to the slave control unit, used to receive the heating plate control instructions issued by the slave control unit, so that the heating plate is heated.

[0015] Preferably, the main control unit includes: a main control chip U1; the slave control unit includes: a slave control chip U3; the heating main switch circuit includes: a ninth transistor Q9, a tenth MOS field effect transistor Q10, a nineteenth resistor R19, and a twentieth resistor R20; the base of the ninth transistor Q9 is connected to the heating main switch control pin HOT_EN of the main control chip U1 through the nineteenth resistor R19, the emitter of the ninth transistor Q9 is grounded, and the collector of the ninth transistor Q9 is connected to the gate of the tenth MOS field effect transistor Q10; the source of the tenth MOS field effect transistor Q10 is connected to the heating unit working voltage VDD, and the twentieth resistor R20 is used to connect The source and gate of the tenth MOS field effect transistor Q10 are connected, and the drain of the tenth MOS field effect transistor Q10 also serves as the output end of the heating load voltage V_HOT; the heating plate control circuit includes: an eleventh MOS field effect transistor Q11 and a twenty-first resistor R21; the gate of the eleventh MOS field effect transistor Q11 is connected to the heating plate control pin HOT_1 of the slave control chip U3, the source of the eleventh MOS field effect transistor Q11 is connected to the heating load voltage V_HOT, and the drain of the eleventh MOS field effect transistor Q11 is connected to the heating plate; the twenty-first resistor R21 is used to connect the source and gate of the eleventh MOS field effect transistor Q11.

[0016] The control circuit of the heating massage device, the main control unit and the slave control unit are communicatively connected, and the communication pins of the entire control unit are increased, thereby more input devices can be communicatively connected with the entire control unit, and the entire control unit can also be connected to and control more functional modules, so that the entire control unit can receive more types and more numbers of input instructions, enriching the information interaction function of the heating massage device, and being able to control more types and more numbers of functional modules, so that the heating massage device can be applied to many application scenarios where heating, massage, and physical therapy functions coexist; at the same time, the main control unit controls the TENS stimulation unit, and the slave control unit controls the heating unit, respectively realizing the TENS stimulation treatment function and the heating function; and after the slave control unit receives the control instruction sent by the main control unit, it can independently control the TENS stimulation unit according to the received instruction until it receives the control instruction changed by the main control unit. During this period, the TENS stimulation unit is independently controlled by the slave control unit, thereby ensuring the stability of the operation of the heating massage device during TENS stimulation treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model has the following drawings:

[0018] Figure 1 The schematic diagram of an embodiment of a control circuit for heating massage equipment.

[0019] Figure 2 A schematic diagram of a TENS stimulation unit of an embodiment of a control circuit for a heated massage device.

[0020] Figure 3 The main control chip pins of an embodiment of a control circuit for heating massage equipment.

[0021] Figure 4 The circuit diagram of a TENS discharge module is an embodiment of a control circuit for a heating massage device.

[0022] Figure 5 The circuit diagram of a TENS boost module is an embodiment of a control circuit for a heating massage device.

[0023] Figure 6 The present invention is a circuit diagram of a TENS circuit detection module of an embodiment of a control circuit for a heating massage device.

[0024] Figure 7 A schematic diagram of a heating unit of an embodiment of a control circuit for heating a massage device.

[0025] Figure 8 The pins of a slave control chip of an embodiment of a control circuit for heating massage equipment.

[0026] Fig. 9The present invention is a circuit diagram of a heating plate control circuit of a heating unit of an embodiment of a control circuit for heating a massage device.

[0027] Fig.10 Circuit diagram of a TENS loop detection module of a heating unit of one embodiment of a control circuit for heating a massage device. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] The terms "first" and "second" in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0030] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0031] As the instruction manual Figure 1 As shown:

[0032] A control circuit for a heating massage device, characterized in that it comprises a main control unit 100, a TENS stimulation unit 300, a slave control unit 150, and a heating unit 200, wherein:

[0033] A first end of the main control unit 100 is electrically connected to the input unit 130, a second end of the main control unit 100 is electrically connected to a first end of the TENS stimulation unit 300, a third end of the main control unit 100 is electrically connected to a first end of the slave control unit 150, and a second end of the slave control unit 150 is connected to the heating unit 200;

[0034] The main control unit 100 is used to receive the device working instructions sent by the input unit 130, including but not limited to: the high level / low level instructions sent by the TENS function start / stop button circuit, the high level / low level instructions sent by the all heating sheet work / stop button circuit, the high level / low level instructions sent by the first heating zone button circuit, the high level / low level instructions sent by the second heating zone button circuit, the high level / low level instructions sent by the third heating zone button circuit, the high level / low level instructions sent by the fourth heating zone button circuit, the high level / low level instructions sent by the fifth heating zone button circuit, and the high level / low level instructions sent by the sixth heating zone button circuit; the main control unit 100 parses the device working determination instruction to obtain device control information, and the device control information includes the TENS stimulation unit 3 00 working information and / or heating unit 200 working information; when the device control information includes TENS stimulation unit 300 working information, the main control unit 100 sends the TENS stimulation unit 300 working information to the TENS stimulation unit 300; when the device control information includes the heating unit 200 working information, the main control unit 100 sends the heating unit 200 working information to the slave control unit 150; the TENS stimulation unit 300 performs TENS stimulation treatment according to the received TENS stimulation unit 300 working information; the slave control unit 150 is used to receive the heating unit 200 working information, parse the heating unit 200 working information, and send the heating unit 200 control instruction to the heating unit 200; the heating unit 200 heats according to the received heating unit 200 control instruction.

[0035] In this embodiment, the master control unit and the slave control unit are connected in communication, and the communication pins of the entire control unit are increased. More input devices (including but not limited to: TENS loop detection circuit, key circuit, temperature control circuit) can be connected in communication with the entire control unit, and the entire control unit can also control more functional modules (including but not limited to: heating plate working circuit, TENS electrode, vibration unit, display unit, indicator light), so that the entire control unit can receive more types and more numbers of input instructions, enrich the information interaction function of the heating massage device, and can control more types and more numbers of functional modules, so that the heating massage device can be applied to many application scenarios where heating, massage, and physical therapy functions coexist; at the same time, the master control unit controls the TENS stimulation unit, and the slave control unit controls the heating unit, respectively realizing the TENS stimulation treatment function and the heating function; and after the slave control unit receives the control instruction sent by the master control unit, it can independently control the TENS stimulation unit according to the received instruction until it receives the control instruction changed by the master control unit. During this period, the TENS stimulation unit is independently controlled by the slave control unit, thereby ensuring the stability of the operation of the heating massage device during TENS stimulation treatment.

[0036] In one embodiment, the control circuit for the heating massage device further includes: a vibration unit; the vibration unit is connected to the third end of the main control unit; and the vibration unit is used to receive a vibration work instruction sent by the main control unit to vibrate.

[0037] In this embodiment, the vibration unit enables the heating massage device to have a vibration reminder function, including but not limited to: heating massage device on / off reminder, TENS stimulation treatment function start / stop reminder, heating function start / stop reminder, which is used to prompt the working status of the heating massage device and further enrich the usage functions of the heating massage device.

[0038] As the instruction manual Figure 2 As shown: In one embodiment, the TENS stimulation unit 300 includes: a TENS discharge module 320; the TENS discharge module 320 is electrically connected to the main control unit 100; the TENS discharge module 320 is used to receive the TENS discharge instruction sent by the main control unit 100, so as to perform neural electrical stimulation therapy.

[0039] In this embodiment, the heating massage device releases a mild and trace amount of current through the TENS discharge module (TENS discharge current is limited to about 3 mA), stimulating the sensory nerves to block the transmission of pain nerve signals, interfering with the pain signals from reaching the brain, thereby relieving pain.

[0040] As the instruction manual Figure 3 As shown: the main control chip U1 includes at least 8 pins, pin HOT_DAT is the heating communication pin to the slave control unit, pin TOUCH_H is the TENS contact pin, pin HOT_EN is the heating main switch control pin, pin TENS1 is the first TENS discharge control pin, pin TENS2 is the second TENS discharge control pin, pin VH_DIS is the TENS fast discharge pin, pin VH_PWM is the TENS boost control pin, and pin V_FB is the TENS discharge feedback voltage pin.

[0041] Pin 1 represents the power input terminal, pin 2 represents the signal control terminal, pin 3 represents the signal output terminal, pin 4 represents the ground terminal, and pin 5 represents the current setting terminal.

[0042] As the instruction manual Figure 1-10 As shown:

[0043] In one embodiment, the main control unit 100 for the control circuit of the heating massage device includes: a main control chip U1; a TENS discharge module 320 includes: a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, a fifth transistor Q5, a sixth transistor Q6, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and an eighth resistor R8; the emitters of the first transistor Q1 and the fourth transistor Q4 are connected and connected to the TENS discharge working voltage VH+; the collector of the first transistor Q1 is connected to the collector of the second transistor Q2; the emitter of the second transistor Q2 is grounded; after the third resistor R3 is connected in parallel with the fourth resistor R4, one end is connected to the base of the first transistor Q1, and the other end is connected to the collector of the third transistor Q3; the emitter of the third transistor Q3 is grounded, and the base of the third transistor Q3 is connected to the first resistor R1 of the main control chip U1 through the first resistor R1. TENS discharge control pin TENS1; the second resistor R2 is used to connect the base and emitter of the third transistor Q3; the collector of the fourth transistor Q4 is connected to the collector of the fifth transistor Q5; the emitter of the fifth transistor Q5 is grounded; after the seventh resistor R7 is connected in parallel with the eighth resistor R8, one end is connected to the base of the fourth transistor Q4, and the other end is connected to the collector of the sixth transistor Q6; the emitter of the sixth transistor Q6 is grounded, and the base of the sixth transistor Q6 is connected to the second TENS discharge control pin TENS2 of the main control chip U1 through the fifth resistor R5; the sixth resistor R6 is used to connect the base and emitter of the sixth transistor Q6; the base of the third transistor Q3 is connected to the base of the fifth transistor Q5, and the base of the second transistor Q2 is connected to the base of the sixth transistor Q6; the collector of the first transistor Q1 is also used as the output end of the TENS discharge positive signal TENS+, and the collector of the fourth transistor Q4 is also used as the output end of the TENS discharge negative signal TENS-.

[0044] In this embodiment, the main control chip has many hardware pins, full functions, and fast response speed, and can realize efficient control of the TENS stimulation unit. The TENS discharge module 320 is powered by the TENS discharge working voltage VH+. The working circuit of the TENS discharge module 320 is an H-bridge circuit. The TENS discharge positive signal TENS+ and the TENS discharge negative signal TENS- contact the human skin through the electrode sheet. After being placed on the human skin, there is an impedance of the order of kilohms between the two electrode sheets. Its working principle is as follows: when the main control chip U1 sends the first TENS discharge control pin TENS1 as a high level and the second TENS discharge control pin TENS2 as a low level, the third transistor Q3 is turned on, the base of the first transistor Q1 is grounded, causing the first transistor Q1 to be turned on, the base of the second transistor Q2 is connected to a low level, and the second transistor Q2 is in a cut-off state, and the voltage at the electrode end of the TENS discharge positive signal TENS+ increases. At the same time, the low level of the second TENS discharge control pin TENS2 causes the sixth transistor Q6 to be turned off, and then the fourth transistor Q4 is turned off, and the base of the fifth transistor Q5 is connected to a high level, causing the fifth transistor Q5 to be turned on, and the voltage at the end of the TENS discharge negative electrode signal TENS-electrode is reduced. Finally, a treatment pulse is generated between the TENS discharge positive electrode signal TENS+ electrode and the TENS discharge negative electrode signal TENS-electrode, which is applied to the kilo-ohm impedance between the two electrode sheets, releasing a mild and trace current to act on the human body, producing the effect of relieving pain.

[0045] In one embodiment, the TENS stimulation unit 300 further includes: a TENS boost module 310; the TENS boost module 310 is electrically connected to the main control unit 100 and the TENS discharge module 320; the TENS boost module 310 is used to receive the TENS boost control instruction sent by the main control unit 100, thereby boosting the battery voltage B+ and outputting the TENS discharge working voltage VH+ to the TENS discharge module 320.

[0046] In this embodiment, the TENS boost module boosts the battery voltage of the heating massage device and outputs the TENS discharge working voltage VH+, so that the heating massage device can reach the TENS discharge module working voltage through the TENS boost module when powered by the battery, thereby ensuring the normal operation of the TENS discharge module of the heating massage device.

[0047] In one embodiment, the main control unit 100 includes: a main control chip U1; the TENS boost module 310 includes: a seventh MOS field effect transistor Q7, an eighth transistor Q8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a first inductor L1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a first diode D1, and a second diode D2; the first end of the first inductor L1 is connected to the battery voltage B+, the first end of the first inductor L1 is also connected to the first end of the first capacitor C1, the second end of the first inductor L1 is connected to the drain of the seventh MOS field effect transistor Q7, the first end of the ninth resistor R9, and the positive electrode of the first diode D1; the second end of the first capacitor C1 is grounded; the gate of the seventh MOS field effect transistor Q7 is connected to the TENS boost control pin VH_PWM of the main control chip U1, the source of the seventh MOS field effect transistor Q7 is grounded, and the tenth resistor R10 is connected to the gate and source of the seventh MOS field effect transistor Q7; the second end of the ninth resistor R9 is connected to the first end of the second capacitor C2, and the second The second end of the capacitor C2 is grounded; the cathode of the first diode D1 is connected to the first end of the third capacitor C3, and the second end of the third capacitor C3 is grounded; the first end of the fourth capacitor C4 is connected to the cathode of the first diode D1, and the second end of the fourth capacitor C4 is grounded; the cathode of the second diode D2 is connected to the first end of the third capacitor C3, and the anode of the second diode D2 is grounded; the first end of the eleventh resistor R11 is connected to the first end of the third capacitor C3, the second end of the eleventh resistor R11 is connected to the first end of the twelfth resistor R12 and the first end of the fifth capacitor C5, the second end of the twelfth resistor R12 and the fifth capacitor C5 are connected. The second end of the capacitor C5 is grounded, and the first end of the twelfth resistor R12 is also connected to the TENS discharge feedback voltage pin V_FB of the main control chip U1; after the thirteenth resistor R13 and the fourteenth resistor R14 are connected in parallel, one end is connected to the first end of the third capacitor C3, and the other end is connected to the collector of the eighth transistor Q8; the emitter of the eighth transistor Q8 is grounded, and the base of the eighth transistor Q8 is connected to the TENS fast discharge pin VH_DIS of the main control chip U1 through the fifteenth resistor R15; the first end of the third capacitor C3 also serves as the output end of the TENS discharge working voltage VH+.

[0048] In this embodiment, the TENS boost control pin VH_PWM of the main control chip U1 outputs a high level, the seventh MOS field effect transistor Q7 is turned on, and the battery voltage B+ charges the first inductor L1. The TENS boost control pin VH_PWM of the main control chip U1 outputs a low level, the seventh MOS field effect transistor Q7 is turned off, and the energy stored in the first inductor L1 is discharged to the load through the first diode D1. At the same time, the battery voltage B+ is also discharged to the load through the first diode D1. The two are superimposed to achieve boosting of the output end of the TENS discharge working voltage VH+; the TENS fast discharge pin VH_DIS of the main control chip U1 outputs a high level, the eighth transistor Q8 is turned on, and the output end of the TENS discharge working voltage VH+ is grounded through a resistor parallel structure to achieve fast discharge of the output end.

[0049] In one embodiment, the TENS stimulation unit 300 further includes: a TENS circuit detection module 330; the TENS circuit detection module 330 is electrically connected to the TENS discharge module 320 and the main control unit 100; the TENS circuit detection module 330 is used to detect whether the TENS circuit is formed and maintained. If the TENS circuit is not formed or disconnected, the TENS circuit detection module 330 outputs a TENS output stop instruction to the main control unit, and the TENS output stop instruction is a level signal that changes from high to low.

[0050] In this embodiment, the TENS circuit detection module detects whether the TENS circuit is formed and maintained, so that the TENS electrical stimulation function can only be turned on after the heating massage device contacts the human body as required or the human body wears the heating massage device. During the use of the heating massage device, if the heating massage device does not contact the human body as required or the heating massage device falls off the human body, the main control unit turns off the TENS electrical stimulation function.

[0051] In one embodiment, the main control unit 100 includes: a main control chip U1; the TENS loop detection module 330 includes: a bidirectional optocoupler unit U2, a sixteenth resistor R16, a seventeenth resistor R17, and an eighteenth resistor R18; the first end of the bidirectional optocoupler unit U2 is connected to the TENS discharge negative signal TENS- through the sixteenth resistor R16, the second end of the bidirectional optocoupler unit U2 is connected to the TENS discharge positive signal TENS+, the third end of the bidirectional optocoupler unit U2 is connected to the battery supply voltage VBAT through the seventeenth resistor R17, and the fourth end of the bidirectional optocoupler unit U2 is connected to the TENS contact pin TOUCH_H of the main control chip U1 through the eighteenth resistor R18.

[0052] In this embodiment, a bidirectional optocoupler is connected in series on the TENS circuit. Each time the TENS is turned on to form a circuit, the optocoupler will be turned on and TOUCH_H will be high level. When the TENS is turned on, and TOUCH_H can be detected as high level at the same time, it is judged that the heating massage device is in contact with the human body as required or the human body wears the heating massage device. If TOUCH_H is low level when the TENS function is turned on or the TENS function is in use, it is judged that the heating massage device is not in contact with the human body as required or the heating massage device falls off the human body, the main control unit turns off the TENS electrical stimulation function, and the TENS output stops.

[0053] The slave control chip U3 includes at least 7 pins, pin DAT is the heating signal receiving pin of the main control unit, pin HOT_1 is the first heating plate control pin, pin HOT_2 is the second heating plate control pin, pin HOT_3 is the third heating plate control pin, pin HOT_4 is the fourth heating plate control pin, pin HOT_5 is the fifth heating plate control pin, and pin HOT_6 is the sixth heating plate control pin.

[0054] In one embodiment, the heating unit 200 also includes: a main heating switch circuit 210 and multiple heating plate control circuits 220; the main heating switch circuit 210 is connected to the main control unit 100, used to receive the main heating switch control instructions of the main control unit 100, and provide a heating working voltage for the heating plate control circuit 220; the heating plate control circuit 220 is connected to the slave control unit 150, used to receive the heating plate control instructions issued by the slave control unit 150, so that the heating plate is heated.

[0055] In this embodiment, the heating work of the heating plate is jointly controlled by the main control unit and the slave control unit. The two control units receive and send work instructions before the heating plate can be heated, ensuring the safety of the heating plate; the slave control unit can independently control the heating work of a single heating plate, improving the targetedness and comfort of the heating unit.

[0056] In one embodiment, the main control unit 100 includes: a main control chip U1; the slave control unit 150 includes: a slave control chip U3; the heating main switch circuit 210 includes: a ninth transistor Q9, a tenth MOS field effect transistor Q10, a nineteenth resistor R19, and a twentieth resistor R20; the base of the ninth transistor Q9 is connected to the heating main switch control pin HOT_EN of the main control chip U1 through the nineteenth resistor R19, the emitter of the ninth transistor Q9 is grounded, and the collector of the ninth transistor Q9 is connected to the gate of the tenth MOS field effect transistor Q10; the source of the tenth MOS field effect transistor Q10 is connected to the heating unit working voltage VDD, and the twentieth resistor R 20 is used to connect the source and gate of the tenth MOS field effect transistor Q10, and the drain of the tenth MOS field effect transistor Q10 also serves as the output end of the heating load voltage V_HOT; the heating plate control circuit 220 includes: an eleventh MOS field effect transistor Q11 and a twenty-first resistor R21; the gate of the eleventh MOS field effect transistor Q11 is connected to the heating plate control pin HOT_1 of the slave control chip U3, the source of the eleventh MOS field effect transistor Q11 is connected to the heating load voltage V_HOT, and the drain of the eleventh MOS field effect transistor Q11 is connected to the heating plate; the twenty-first resistor R21 is used to connect the source and gate of the eleventh MOS field effect transistor Q11.

[0057] The heating massage equipment of this embodiment includes: a thin uterine warming bag, a uterine warming massage equipment, a massage belt, a handheld massage device, a physiotherapy massage device, and a medical physiotherapy machine.

[0058] In this embodiment, the heating master switch control pin HOT_EN of the master control chip U1 is high level, the ninth transistor Q9 is turned on, the gate of the tenth MOS field effect tube Q10 is grounded, the tenth MOS field effect tube Q10 is turned on, and the heating load voltage V_HOT is connected to the heating unit working voltage VDD; the heating plate control pin HOT_1 of the slave control chip U3 is low level, the eleventh MOS field effect tube Q11 is turned on, and the heating load voltage V_HOT supplies power to the heating plate. The master control unit and the slave control unit jointly control the heating work of the heating plate, ensuring the safety of the heating plate; the slave control unit independently controls the heating work of a single heating plate, improving the pertinence and comfort of the heating unit.

[0059] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A control circuit for a heating massage device, characterized in that: It has a main control unit, a TENS stimulation unit, a slave control unit, and a heating unit, including: The first end of the main control unit is electrically connected to the input unit, the second end of the main control unit is electrically connected to the first end of the TENS stimulation unit, the third end of the main control unit is electrically connected to the first end of the slave control unit, and the second end of the slave control unit is connected to the heating unit.

2. The control circuit for heating massage equipment according to claim 1, characterized in that: The control circuit further includes: a vibration unit; the vibration unit is connected to the third end of the main control unit; the vibration unit is used to receive a vibration work instruction sent by the main control unit, thereby vibrating.

3. A control circuit for a heating massage device as claimed in any one of claims 1 or 2, characterized in that: The TENS stimulation unit comprises: a TENS discharge module; the TENS discharge module is electrically connected to the main control unit; the TENS discharge module is used to receive a TENS discharge instruction sent by the main control unit, so as to perform nerve electrical stimulation therapy.

4. The control circuit for heating massage equipment according to claim 3, characterized in that: The main control unit includes: a main control chip U1; the TENS discharge module includes: a first transistor Q1, a second transistor Q2, a third transistor Q3, a fourth transistor Q4, a fifth transistor Q5, a sixth transistor Q6, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and an eighth resistor R8; the emitters of the first transistor Q1 and the fourth transistor Q4 are connected and connected to the TENS discharge working voltage VH+; the collector of the first transistor Q1 is connected to the collector of the second transistor Q2; the emitter of the second transistor Q2 is grounded; after the third resistor R3 is connected in parallel with the fourth resistor R4, one end is connected to the base of the first transistor Q1, and the other end is connected to the collector of the third transistor Q3; the emitter of the third transistor Q3 is grounded, and the base of the third transistor Q3 is connected to the first TENS discharge control pin TE of the main control chip U1 through the first resistor R1. NS1; the second resistor R2 is used to connect the base and emitter of the third transistor Q3; the collector of the fourth transistor Q4 is connected to the collector of the fifth transistor Q5; the emitter of the fifth transistor Q5 is grounded; after the seventh resistor R7 is connected in parallel with the eighth resistor R8, one end is connected to the base of the fourth transistor Q4, and the other end is connected to the collector of the sixth transistor Q6; the emitter of the sixth transistor Q6 is grounded, and the base of the sixth transistor Q6 is connected to the second TENS discharge control pin TENS2 of the main control chip U1 through the fifth resistor R5; the sixth resistor R6 is used to connect the base and emitter of the sixth transistor Q6; the base of the third transistor Q3 is connected to the base of the fifth transistor Q5, and the base of the second transistor Q2 is connected to the base of the sixth transistor Q6; the collector of the first transistor Q1 is also used as the output end of the TENS discharge positive signal TENS+, and the collector of the fourth transistor Q4 is also used as the output end of the TENS discharge negative signal TENS-.

5. The control circuit for heating massage equipment according to claim 3, characterized in that: The TENS stimulation unit also includes: a TENS boost module; the TENS boost module is electrically connected to the main control unit and the TENS discharge module; the TENS boost module is used to receive a TENS boost control instruction sent by the main control unit, thereby boosting the battery voltage B+ and outputting a TENS discharge working voltage VH+ to the TENS discharge module.

6. The control circuit for heating massage equipment according to claim 5, characterized in that: The main control unit includes: a main control chip U1; the TENS boost module includes: a seventh MOS field effect transistor Q7, an eighth transistor Q8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a first inductor L1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a first diode D1, and a second diode D2; the first end of the first inductor L1 is connected to the battery voltage B+, and the first inductor L1 is connected to the battery voltage B+. The first end is also connected to the first end of the first capacitor C1, the second end of the first inductor L1 is connected to the drain of the seventh MOS field effect transistor Q7, the first end of the ninth resistor R9, and the positive electrode of the first diode D1; the second end of the first capacitor C1 is grounded; the gate of the seventh MOS field effect transistor Q7 is connected to the TENS boost control pin VH_PWM of the main control chip U1, the source of the seventh MOS field effect transistor Q7 is grounded, and the tenth resistor R10 is connected to the gate and source of the seventh MOS field effect transistor Q7; the second end of the ninth resistor R9 is connected to the first end of the second capacitor C2, and the first end of the second capacitor C2 is connected to the positive electrode of the first diode D1; the second end of the first capacitor C1 is connected to the drain of the seventh MOS field effect transistor Q7, the first end of the ninth resistor R9 is connected to the positive electrode of the first diode D1; the second end of the first capacitor C1 is connected to the positive electrode of the first diode D1; the second end of the first capacitor C2 is connected to the gate of the seventh MOS field effect transistor Q7, and the source of the seventh MOS field effect transistor Q7 is connected to the positive electrode of the first diode D1; the second end of the first capacitor C2 is connected to the gate of the seventh MOS field effect transistor Q7. The two ends are grounded; the cathode of the first diode D1 is connected to the first end of the third capacitor C3, and the second end of the third capacitor C3 is grounded; the first end of the fourth capacitor C4 is connected to the cathode of the first diode D1, and the second end of the fourth capacitor C4 is grounded; the cathode of the second diode D2 is connected to the first end of the third capacitor C3, and the anode of the second diode D2 is grounded; the first end of the eleventh resistor R11 is connected to the first end of the third capacitor C3, the second end of the eleventh resistor R11 is connected to the first end of the twelfth resistor R12 and the first end of the fifth capacitor C5, the second end of the twelfth resistor R12 and the fifth capacitor C 5 is grounded, and the first end of the twelfth resistor R12 is also connected to the TENS discharge feedback voltage pin V_FB of the main control chip U1; after the thirteenth resistor R13 and the fourteenth resistor R14 are connected in parallel, one end is connected to the first end of the third capacitor C3, and the other end is connected to the collector of the eighth transistor Q8; the emitter of the eighth transistor Q8 is grounded, and the base of the eighth transistor Q8 is connected to the TENS fast discharge pin VH_DIS of the main control chip U1 through the fifteenth resistor R15; the first end of the third capacitor C3 also serves as the output end of the TENS discharge working voltage VH+.

7. The control circuit for heating massage equipment according to claim 3, characterized in that: The TENS stimulation unit also includes: a TENS circuit detection module; the TENS circuit detection module is electrically connected to the TENS discharge module and the main control unit; the TENS circuit detection module is used to detect whether the TENS circuit is formed and maintained. If the TENS circuit is not formed or is disconnected, the TENS circuit detection module outputs a TENS output stop instruction to the main control unit.

8. The control circuit for heating massage equipment according to claim 7, characterized in that: The main control unit includes: a main control chip U1; the TENS circuit detection module includes: a bidirectional optical coupling unit U2, a sixteenth resistor R16, a seventeenth resistor R17, and an eighteenth resistor R18; the first end of the bidirectional optical coupling unit U2 is connected to the TENS discharge negative signal TENS- through the sixteenth resistor R16, the second end of the bidirectional optical coupling unit U2 is connected to the TENS discharge positive signal TENS+, the third end of the bidirectional optical coupling unit U2 is connected to the battery power supply voltage VBAT through the seventeenth resistor R17, and the fourth end of the bidirectional optical coupling unit U2 is connected to the TENS contact pin TOUCH_H of the main control chip U1 through the eighteenth resistor R18.

9. The control circuit for heating massage equipment according to any one of claims 1 or 2, characterized in that: The heating unit also includes: a main heating switch circuit and multiple heating plate control circuits; the main heating switch circuit is connected to the main control unit, used to receive the main heating switch control instructions of the main control unit, and provide a heating working voltage for the heating plate control circuit; the heating plate control circuit is connected to the slave control unit, used to receive the heating plate control instructions issued by the slave control unit, so that the heating plate is heated.

10. The control circuit for heating massage equipment according to claim 9, characterized in that: The heating massage equipment includes: a thin uterine warming bag, a uterine warming massage equipment, a massage belt, a handheld massage device, a physiotherapy massage device, and a medical physiotherapy machine; or, the main control unit includes: a main control chip U1; the slave control unit includes: a slave control chip U3; the heating main switch circuit includes: a ninth transistor Q9, a tenth MOS field effect transistor Q10, a nineteenth resistor R19, and a twentieth resistor R20; the base of the ninth transistor Q9 is connected to the heating main switch control pin HOT_EN of the main control chip U1 through the nineteenth resistor R19, the emitter of the ninth transistor Q9 is grounded, and the collector of the ninth transistor Q9 is connected to the gate of the tenth MOS field effect transistor Q10; the source of the tenth MOS field effect transistor Q10 is connected to the gate of the tenth MOS field effect transistor Q10. The gate of the eleventh MOS field effect transistor Q11 is connected to the heating unit working voltage VDD, the twentieth resistor R20 is used to connect the source and gate of the tenth MOS field effect transistor Q10, and the drain of the tenth MOS field effect transistor Q10 is also used as the output end of the heating load voltage V_HOT; the heating plate control circuit includes: an eleventh MOS field effect transistor Q11 and a twenty-first resistor R21; the gate of the eleventh MOS field effect transistor Q11 is connected to the heating plate control pin HOT_1 of the slave control chip U3, the source of the eleventh MOS field effect transistor Q11 is connected to the heating load voltage V_HOT, and the drain of the eleventh MOS field effect transistor Q11 is connected to the heating plate; the twenty-first resistor R21 is used to connect the source and gate of the eleventh MOS field effect transistor Q11.

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