A main control circuit for a laser physiotherapy instrument

Abstract

The utility model discloses a kind of main control circuit for laser physiotherapy instrument, the main control circuit is applied to laser physiotherapy instrument;Main control circuit includes single-chip microcontroller and laser head control circuit, laser head control circuit includes first MOS tube and laser head, the gate of first MOS tube is electrically connected after first control resistance is accessed the first laser control end of single-chip microcontroller, the gate of first MOS tube is also electrically connected after second control resistance is grounded, the source of first MOS tube is electrically connected after third control resistance is grounded, the source of first MOS tube is also electrically connected after fourth control resistance is accessed the second laser control end of single-chip microcontroller;The anode of laser head is electrically connected to the cathode of first MOS tube, the anode of laser head is electrically connected first DC power supply.When single-chip microcontroller drives first MOS tube to turn on, the cathode of laser head is grounded, laser head starts to work, can irradiate human wrist and / or nasal cavity.

Description

Technical Field

[0001] This application relates to the field of physiotherapy equipment technology, specifically to a main control circuit for a laser physiotherapy equipment. Background Technology

[0002] A laser therapy device is a medical or home-use device that uses low-intensity laser light of a specific wavelength to irradiate the human body for therapeutic and rehabilitative purposes. Existing laser therapy devices employ complex and costly control circuit structures; therefore, there is still room for improvement and optimization in their control circuitry. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a main control circuit for a laser therapy device. The main control circuit includes a microcontroller and a laser head control circuit. The laser head control circuit includes a first MOSFET and a laser head. The gate of the first MOSFET is electrically connected to a first control resistor and then connected to the first laser control terminal of the microcontroller. The gate of the first MOSFET is also electrically connected to a second control resistor and then grounded. The source of the first MOSFET is electrically connected to a third control resistor and then grounded. The source of the first MOSFET is also electrically connected to a fourth control resistor and then connected to the second laser control terminal of the microcontroller. The drain of the first MOSFET is electrically connected to the negative terminal of the laser head, and the positive terminal of the laser head is electrically connected to a first DC power supply.

[0004] In some embodiments, the main control circuit further includes an alarm circuit, which includes a first control transistor and a buzzer. The base of the first control transistor is electrically connected to a first alarm resistor and then connected to the alarm control terminal of the microcontroller. The base of the first control transistor is also electrically connected to a second alarm resistor and then grounded. The emitter of the first control transistor is grounded, and the collector of the first control transistor is electrically connected to the negative terminal of the buzzer. The positive terminal of the buzzer is electrically connected to the first DC power supply.

[0005] In some embodiments, the main control circuit also includes a lithium battery, the positive terminal of which outputs a first DC power supply.

[0006] In some embodiments, the main control circuit further includes a switching circuit, which includes a first button resistor and a switch button. The first end of the switch button is electrically connected to the first button resistor and then connected to the switch terminal of the microcontroller, and the second end of the switch button is grounded.

[0007] In some embodiments, the main control circuit further includes a mode adjustment circuit, which includes a second button resistor and a mode button. The first end of the mode button is electrically connected to the second button resistor and then connected to the mode adjustment terminal of the microcontroller, and the second end of the mode button is grounded.

[0008] In some embodiments, the main control circuit further includes an intensity adjustment circuit, which includes a third button resistor and an intensity button. The first end of the intensity button is electrically connected to the intensity adjustment terminal of the microcontroller after being connected to the third button resistor, and the second end of the intensity button is grounded.

[0009] In some embodiments, the main control circuit further includes a display screen electrically connected to the microcontroller.

[0010] In some embodiments, the positive terminal of the buzzer is electrically connected to the third alarm resistor and then connected to the first DC power supply, the negative terminal of the buzzer is electrically connected to the positive terminal of the alarm protection diode, and the negative terminal of the alarm protection diode is also electrically connected to the third alarm resistor.

[0011] In some embodiments, the second laser control terminal of the microcontroller is also electrically connected to the first filter capacitor and then grounded.

[0012] In some embodiments, the voltage of the first DC power supply is +5V.

[0013] The beneficial effects of this application are as follows: This utility model discloses a main control circuit for a laser therapy device. The main control circuit includes a microcontroller and a laser head control circuit. The laser head control circuit includes a first MOSFET and a laser head. The gate of the first MOSFET is electrically connected to a first control resistor and then connected to the first laser control terminal of the microcontroller. The gate of the first MOSFET is also electrically connected to a second control resistor and then grounded. The source of the first MOSFET is electrically connected to a third control resistor and then grounded. The source of the first MOSFET is also electrically connected to a fourth control resistor and then connected to the second laser control terminal of the microcontroller. The drain of the first MOSFET is electrically connected to the negative terminal of the laser head, and the positive terminal of the laser head is electrically connected to a first DC power supply. When the microcontroller drives the first MOSFET to conduct, the negative terminal of the laser head is grounded, and the laser head begins to work, capable of irradiating the wrist and / or nasal cavity of the human body. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of a microcontroller for the main control circuit of a laser therapy device according to this utility model; Figure 2 This is a schematic diagram of a portion of the laser head control circuit in the main control circuit of a laser therapy device according to this utility model; Figure 3This is a schematic diagram of another part of the laser head control circuit in the main control circuit of a laser physiotherapy device according to this utility model; Figure 4 This is a schematic diagram of the electrical connection between the display screen and the microcontroller in the main control circuit of a laser therapy device according to this utility model; Figure 5 This is a schematic diagram of the switching circuit, mode adjustment circuit, and intensity adjustment circuit in the main control circuit of a laser therapy device according to this utility model. Figure 6 This is a schematic diagram of an alarm circuit in the main control circuit of a laser therapy device according to the present invention; Figure 7 This is a schematic diagram of the battery interface and charging management chip in the main control circuit of a laser therapy device according to this utility model. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other alternative implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] This application provides a main control circuit for a laser therapy device, which can be applied in laser therapy devices.

[0017] Specifically, such as Figures 1 to 3 As shown, the main control circuit includes a microcontroller and a laser head control circuit. Figure 1 This is a schematic diagram of a microcontroller. Figure 2 and Figure 3 This is a schematic diagram of the laser head control circuit. The laser head control circuit includes a first MOSFET Q3 and a laser head D1. The gate of the first MOSFET Q3 is electrically connected to the first control resistor R11 and then connected to... Figure 1 The first laser control terminal P2.2 of the microcontroller is connected to the gate of the first MOSFET Q3, which is then grounded via the second control resistor R14. The source of the first MOSFET Q3 is also connected to ground via the third control resistor R15. Finally, the source of the first MOSFET Q3 is connected to the fourth control resistor R13. Figure 1 The second laser control terminal P1.1 of the microcontroller is also electrically connected to the first filter capacitor C3 and then grounded; the drain of the first MOS transistor Q3 is electrically connected to the fifth control resistor R1 and then electrically connected to the negative terminal of the laser head D1, and the positive terminal of the laser head D1 is electrically connected to the first DC power supply VCC.

[0018] In this embodiment, when the microcontroller drives the first MOS transistor Q3 to conduct, the negative terminal of the laser head D1 is grounded, and the laser head D1 begins to work, capable of irradiating the human body (e.g., the wrist and nasal cavity). For example, the laser head of the device is aimed at the nasal cavity or the radial artery of the wrist to irradiate, aiming to stimulate blood circulation through low-intensity laser, improve blood rheological properties, thereby helping to treat or relieve rhinitis and regulate blood pressure, blood lipids, and blood sugar levels.

[0019] It should be noted that this application only relates to improvements in the circuitry of a laser therapy device; stimulating blood circulation through a laser therapy device is existing technology or publicly known. For example, using a laser head D1 to emit a 650nm laser allows energy to directly penetrate the skin and blood vessel walls into the blood vessels. Through photolysis, it breaks down the adhesion of red blood cells, reducing blood viscosity. The 650nm laser is more easily absorbed by blood cells, and the damage threshold of low-intensity lasers is lower than the cell's own healing threshold. Irradiating circulating blood with a laser alters the conformation of protein molecules in the blood, triggering a series of biological reactions in the body. This results in lowering blood lipids and blood viscosity, improving blood oxygen-carrying capacity, enhancing the cell's ability to utilize oxygen and the oxidation process, and improving overall systemic oxygen supply.

[0020] Furthermore, such as Figure 4 As shown, the main control circuit also includes a display screen DIS1 electrically connected to the microcontroller. The first to eighth pins of the display screen DIS1 are respectively connected to… Figure 1 The input / output pins P2.6, P2.7, P1.0, P1.3, P1.4, P1.5, P1.6, and P1.7 of the microcontroller are electrically connected, thereby displaying various states of the laser therapy device on the display screen DIS1.

[0021] Furthermore, such as Figure 5 As shown, the main control circuit also includes a switching circuit, which includes a first button resistor R25 and a switch button S2. The first terminal of the switch button S2 is electrically connected to the first button resistor R25 and then connected to... Figure 1 The microcontroller's switching terminal P3.2 is connected to ground, and the second terminal of the switch button S2 is grounded. In this embodiment, pressing and holding the switch button S2 controls the laser therapy device to turn on or off; the switch button S2 can also integrate a timing function, for example, when the laser head D1 is working, each short press of the switch button S2 marks the working time of the laser head D1. The timer increments in 15-minute increments, up to a maximum of 60 minutes. After 60 minutes, a short press of the power / timer button resets the timer to 15-minute intervals, and this cycle repeats. Each press of the power button S2 is accompanied by a beeping sound. In this embodiment, a long press of the power button S2 controls the laser therapy device to turn on or off; a short press of the power button S2 sets the working time of the laser head D1.

[0022] Furthermore, such as Figure 5 As shown, the main control circuit also includes a mode adjustment circuit, which includes a second button resistor R22 and a mode button S1. The first terminal of the mode button S1 is electrically connected to the second button resistor R22 and then connected to... Figure 1 The mode adjustment terminal P2.4 of the microcontroller is connected to ground, and the second terminal of the mode button S2 is grounded.

[0023] In this embodiment, it is preferable to have multiple laser heads, that is, the aforementioned laser head control circuit has multiple channels. Some laser heads are used to irradiate the wrist, while others are used to irradiate the nasal cavity. These laser heads can be controlled separately by a microcontroller. The working mode of the laser therapy device can be switched by pressing the mode button S1. For example, pressing the mode button S1 once activates the laser head irradiating the wrist; pressing the mode button S1 a second time activates the laser head irradiating the nasal cavity; and pressing the mode button S1 a third time activates both the laser head irradiating the wrist and the laser head irradiating the nasal cavity simultaneously. Each button press is accompanied by a beeping sound.

[0024] Furthermore, such as Figure 5 As shown, the main control circuit also includes an intensity adjustment circuit, which includes a third button resistor R26 and an intensity button S3. The first terminal of the intensity button S3 is electrically connected to the third button resistor R26 and then connected to... Figure 1 The intensity adjustment terminal of the microcontroller is connected to ground at the second terminal of the intensity button. In this embodiment, when the laser head is in operation, the output intensity of the laser head can be switched by pressing the intensity button S3. The output intensity cycles through three levels: weak, medium, and strong. Each press of the intensity button S3 is accompanied by a beeping sound.

[0025] Furthermore, such as Figure 6 As shown, the main control circuit also includes an alarm circuit, which includes a first control transistor Q2 and a buzzer B1. The base of the first control transistor Q2 is electrically connected to the first alarm resistor R9 and then connected to... Figure 1 In the microcontroller's alarm control terminal P3.4, the base of the first control transistor Q2 is electrically connected to the second alarm resistor R6 and then grounded; the emitter of the first control transistor Q2 is grounded, and the collector of the first control transistor Q2 is electrically connected to the negative terminal of the buzzer B1. The positive terminal of the buzzer B1 is electrically connected to the first DC power supply VCC. In this embodiment, when the microcontroller drives the first control transistor Q2 to conduct, the negative terminal of the buzzer B1 is grounded, and a buzzing sound is emitted.

[0026] Furthermore, the positive terminal of buzzer B1 is electrically connected to the third alarm resistor R12 and then connected to the first DC power supply VCC. The negative terminal of buzzer B1 is electrically connected to the positive terminal of alarm protection diode D1, and the negative terminal of alarm protection diode D1 is also electrically connected to the third alarm resistor R12.

[0027] Furthermore, such as Figure 7 As shown, the main control circuit also includes a lithium battery. Figure 7 In the middle, the lithium battery is electrically connected through the battery interface J3. The positive terminal of the lithium battery (the second core of the battery interface J3) outputs the first DC power supply VCC, and the voltage of the first DC power supply VCC is +5V.

[0028] Furthermore, such as Figure 7 As shown, in this embodiment, the main control circuit also includes a charging interface (not shown) and a charging management chip (U1). The input terminal VCC of the charging management chip is electrically connected to the charging interface, through which a +5V power supply is input; the output terminal BAT of the charging management chip is electrically connected to the second core of the battery interface J3 to charge the lithium battery; the charging control terminal CHRG and the standby terminal STDBY of the charging management chip are connected to... Figure 1 Microcontroller-based electrical connections.

[0029] Furthermore, this application also provides a laser physiotherapy device having the aforementioned main control circuit.

[0030] Finally, it should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this application, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0031] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0032] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A main control circuit for a laser physiotherapy device, characterized in that, The main control circuit includes a microcontroller and a laser head control circuit. The laser head control circuit includes a first MOSFET and a laser head. The gate of the first MOSFET is electrically connected to a first control resistor and then connected to the first laser control terminal of the microcontroller. The gate of the first MOSFET is also electrically connected to a second control resistor and then grounded. The source of the first MOSFET is electrically connected to a third control resistor and then grounded. The source of the first MOSFET is also electrically connected to a fourth control resistor and then connected to the second laser control terminal of the microcontroller. The drain of the first MOSFET is electrically connected to the negative terminal of the laser head, and the positive terminal of the laser head is electrically connected to a first DC power supply.

2. The main control circuit for a laser physiotherapy device according to claim 1, characterized in that, The main control circuit also includes an alarm circuit, which includes a first control transistor and a buzzer. The base of the first control transistor is electrically connected to a first alarm resistor and then connected to the alarm control terminal of the microcontroller. The base of the first control transistor is also electrically connected to a second alarm resistor and then grounded. The emitter of the first control transistor is grounded, and the collector of the first control transistor is electrically connected to the negative terminal of the buzzer. The positive terminal of the buzzer is electrically connected to the first DC power supply.

3. The main control circuit for a laser physiotherapy device according to claim 2, characterized in that, The main control circuit also includes a lithium battery, and the positive terminal of the lithium battery outputs a first DC power supply.

4. The main control circuit for a laser physiotherapy device according to any one of claims 1 to 3, characterized in that, The main control circuit also includes a switching circuit, which includes a first button resistor and a switch button. The first end of the switch button is electrically connected to the first button resistor and then connected to the switch terminal of the microcontroller. The second end of the switch button is grounded.

5. The main control circuit for a laser physiotherapy device according to claim 4, characterized in that, The main control circuit also includes a mode adjustment circuit, which includes a second button resistor and a mode button. The first end of the mode button is electrically connected to the second button resistor and then connected to the mode adjustment terminal of the microcontroller. The second end of the mode button is grounded.

6. The main control circuit for a laser therapy device according to claim 5, characterized in that, The main control circuit also includes an intensity adjustment circuit, which includes a third button resistor and an intensity button. The first end of the intensity button is electrically connected to the third button resistor and then connected to the intensity adjustment terminal of the microcontroller. The second end of the intensity button is grounded.

7. The main control circuit for a laser physiotherapy device according to claim 6, characterized in that, The main control circuit also includes a display screen that is electrically connected to the microcontroller.

8. The main control circuit for a laser physiotherapy device according to claim 2, characterized in that, The positive terminal of the buzzer is electrically connected to the third alarm resistor and then to the first DC power supply. The negative terminal of the buzzer is electrically connected to the positive terminal of the alarm protection diode, and the negative terminal of the alarm protection diode is also electrically connected to the third alarm resistor.

9. The main control circuit for a laser physiotherapy device according to claim 7, characterized in that, The second laser control terminal of the microcontroller is also electrically connected to the first filter capacitor and then grounded.

10. The main control circuit for a laser physiotherapy device according to claim 9, characterized in that, The voltage of the first DC power supply is +5V.

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