Pull-back mechanism based on permanent magnet generator and control method and control circuit thereof

Abstract

A force-back mechanism based on a permanent magnet generator includes an equipment component, wherein the equipment component includes fitness equipment or rehabilitation equipment. An electric component is connected to the equipment component, and the electric component is used to generate a force-back for use by the equipment component. A control component is connected to the electric component, and the control component is used to adjust the force-back generated by the electric component. The control component includes a gear adjustment module, and the gear adjustment module is used to adjust the value of the control current of the main control chip to change the torque of the electric component. The control component includes an interlocking module, and the interlocking module is used to improve the stability of the control component. The control component includes a heat dissipation module, and the heat dissipation module is used to reduce the temperature of the control component. The main control chip also includes a rectifier and voltage stabilization module, and the rectifier and voltage stabilization module is used to provide a stable power supply for the control component.

Description

Technical field:

[0001] The invention relates to a pull-back mechanism based on a permanent magnet generator and a control method and a control circuit thereof. Background technology:

[0002] With the development of society and the advancement of science and technology, fitness equipment and rehabilitation equipment have gradually become popular in all aspects of people's lives to exercise users' cardiopulmonary function and core strength or help users restore their body functions and maintain their health.

[0003] In real life, commonly used fitness equipment mainly includes rowing machines, exercise bikes, treadmills, waist beauty machines, etc., and rehabilitation equipment mainly includes lower limb joint rehabilitation devices, ankle joint rehabilitation devices, finger joint rehabilitation devices, upper limb joint rehabilitation devices, etc.

[0004] The working principles of fitness equipment and rehabilitation equipment are roughly the same. The user pulls the counterweight to generate a recoil force, which is used to drive the user's torso and other parts of the body to move, so as to achieve the purpose of exercising the body and accelerating body recovery. Since the size of the recoil force is determined by the number and quality of the counterweight, the size of the recoil force can only be adjusted within a narrow range, and there are fewer types of gear subdivisions, which cannot meet the needs of users of different age groups and different physical conditions at the same time; the way the counterweight generates recoil force is less safe and can easily cause injuries to users. Summary of the invention:

[0005] The embodiment of the present invention provides a pull-back mechanism based on a permanent magnet generator and a control method and a control circuit thereof. The structure and method are reasonably designed, and an electric component is used to generate pull-back to replace the existing counterweight block. The gear level can be adjusted at any time according to the actual needs of the user. The pull-back adjustment range is large, and a pull-back suitable for exercise or rehabilitation is provided to the user, thereby improving the safety of fitness equipment and rehabilitation equipment. At the same time, for fitness equipment or rehabilitation equipment, the user can pull the equipment to generate electrical energy using the principle of electromagnetic induction for use by the pull-back mechanism and the control circuit, and the electrical energy can be stored to provide lighting and screen display indications for outdoor fitness equipment, thereby solving the problems existing in the prior art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A pull-back mechanism based on a permanent magnet generator includes an equipment component, an electric component is connected to the equipment component, the electric component is used to generate a pull-back force for use by the equipment component, a control component is connected to the electric component, the control component is used to adjust the pull-back force generated by the electric component, the control component includes a gear adjustment module, the gear adjustment module is used to adjust the value of the output current of the main control chip to change the torque of the electric component, the control component includes an interlocking module, the interlocking module is used to improve the stability of the control component, the control component includes a heat dissipation module, the heat dissipation module is used to reduce the temperature of the control component and the electric component, and the main control chip also includes a rectifier and voltage stabilization module, the rectifier and voltage stabilization module is used to provide a stable power supply for the control component.

[0008] A pull-back control circuit based on a permanent magnet generator includes a main control chip, a gear adjustment module connected to the main control chip, an electric motor connected to the gear adjustment module, the gear adjustment module is used to adjust the value of the control current of the main control chip to change the torque of the electric motor, an interlocking module is connected to the main control chip, the interlocking module is used to increase the stability of the main control chip, a heat dissipation module is connected to the main control chip, the heat dissipation module is used to reduce the temperature of the main control chip, and a rectifier and voltage stabilization module is also connected to the main control chip, the rectifier and voltage stabilization module is used to provide a stable power supply for the main control chip.

[0009] The main control chip is also connected to a charging module, and the charging module is used to store electric energy.

[0010] The model of the main control chip is PIC30F2010, and 28 pins are arranged on the main control chip. Pin No. 1 of the main control chip is connected to a first resistor, and the first resistor is connected to a power supply; Pin No. 2 of the main control chip is connected to a second resistor, and the second resistor is connected to a current detection pin, and Pin No. 2 is connected to a first capacitor, and the first capacitor is grounded; Pin No. 3 of the main control chip is connected to a voltage detection pin; Pin No. 4 of the main control chip is connected to a temperature detection pin, and the temperature detection pin is used to detect the temperature of the radiator; Pin No. 9 and Pin No. 10 of the main control chip are connected with a crystal oscillator device; Pin No. 11 of the main control chip is connected to a third resistor, and the third resistor is connected to the base of the first triode; Pin No. 12 of the main control chip is connected to a fourth resistor, and the fourth resistor is connected to a first light-emitting diode, and the first light-emitting diode is grounded; Pin No. 14 of the main control chip is connected to a fifth resistor, and the fifth resistor is connected to a positive adjustment pin; Pin No. 15 of the main control chip is connected to a sixth resistor, and the sixth resistor is connected to a heat dissipation fan Fan pin, the cooling fan pin is used to control the opening and closing of the cooling fan; Pin 16 of the main control chip is connected to the seventh resistor, and the seventh resistor is connected to the negative adjustment pin; Pin 19 and Pin 27 of the main control chip are short-circuited, and Pin 20 and Pin 28 of the main control chip are short-circuited; the main control chip is connected to an interlocking module through Pin 27 and Pin 28; Pin 23 of the main control chip is connected to the eighth resistor, and the eighth resistor is connected to the second light-emitting diode, and the second light-emitting diode is grounded; Pin 24 of the main control chip is connected to the ninth resistor, and the ninth resistor is connected to the third light-emitting diode, and the third light-emitting diode is grounded; Pin 26 of the main control chip is connected to the thermistor detection pin; the main control chip is connected to a pin through Pin 1, Pin 17 and Pin 18; Pin 5, Pin 6, Pin 7, Pin 8, Pin 13, Pin 21, Pin 22 and Pin 25 of the main control chip are all empty pins.

[0011] The pin is a five-pin pin, which is used to burn the program into the main control chip; pin No. 1 of the pin is connected to pin No. 1 of the main control chip, pin No. 2 of the pin is connected to the power supply, pin No. 3 of the pin is grounded, pin No. 4 of the pin is connected to pin No. 17 of the main control chip, and pin No. 5 of the pin is connected to pin No. 18 of the main control chip.

[0012] The interlocking module includes a second capacitor connected to pin 28 of the main control chip, the second capacitor is grounded, the second capacitor is connected to a third capacitor, and the third capacitor is connected to pin 27 of the main control chip; a tenth resistor is connected to the third capacitor, the tenth resistor is connected to a fourth light-emitting diode, and the fourth light-emitting diode is grounded; the tenth resistor is connected to the collector of the second triode, a first switch is connected between the collector and the emitter of the second triode, the emitter of the second triode is connected to a power supply, an eleventh resistor, a second switch and a twelfth resistor are connected between the base of the second triode and the collector of the first triode, and the emitter of the first triode is grounded.

[0013] The gear adjustment module includes a power supply, a third switch and a fourth switch are connected in parallel to the power supply, a fourth capacitor is connected in parallel to the third switch, a fifth capacitor is connected in parallel to the fourth switch, a thirteenth resistor and a fourteenth resistor are connected between the third switch and the fourth switch, a positive gear adjustment pin is connected between the third switch and the thirteenth resistor, and a negative gear adjustment pin is connected between the fourth switch and the fourteenth resistor.

[0014] The heat dissipation module includes a heat dissipation control chip, which is used to control the opening and closing of the heat dissipation fan; the model of the heat dissipation control chip is TC4427, and 8 pins are provided on the heat dissipation control chip, and pins 1 and 8 of the heat dissipation control chip are empty pins; pin 2 of the heat dissipation control chip is connected to the fifteenth resistor, and the fifteenth resistor is connected to the thermistor detection pin; pin 3 of the heat dissipation control chip is grounded; pin 4 of the heat dissipation control chip is connected to the heat dissipation fan pin; pin 5 of the heat dissipation control chip is connected to the sixteenth resistor, the sixteenth resistor is connected to the seventeenth resistor, the seventeenth resistor is grounded, the sixteenth resistor is connected to the first MOS tube, and the first MOS tube is connected to the heat dissipation fan; pin 6 of the main control chip is connected in parallel with the sixth capacitor and the seventh capacitor; pin 7 of the heat dissipation control chip is connected to the eighteenth resistor.

[0015] The rectifier and voltage stabilizing module includes a three-phase power supply, a rectifier bridge module is connected to the three-phase power supply, a first voltage stabilizing module and a second voltage stabilizing module are sequentially connected to the rectifier bridge module, the first voltage stabilizing module is an LM317 voltage stabilizing module, the second voltage stabilizing module is an LM7805 voltage stabilizing module, and a current detection module is also connected to the rectifier bridge module, and the current detection module is an ACS713 current detection module.

[0016] The pull-back control method based on the permanent magnet generator comprises the following steps:

[0017] The control component generates an induced electromotive force through the action of the equipment component, thereby generating an induced current;

[0018] The magnitude of the induced current is adjusted by a positive adjustment pin and a negative adjustment pin; wherein the positive adjustment pin is connected to a third switch, a fourth capacitor is connected in parallel to the third switch, and the negative adjustment pin is connected to a fourth switch, a fifth capacitor is connected in parallel to the fourth switch;

[0019] The regulated induction current is output to the electric component so that the electric component generates a returning force for returning the equipment component to an initial position.

[0020] The present invention adopts the above structure, when the user pulls the equipment component to move, an induced electromotive force is generated through the principle of electromagnetic induction, and then an induced current is generated to convert the electric component into a recoil force; the output current is adjusted by the positive adjustment pin and the negative adjustment pin on the main control chip to change the recoil force of the electric component, so that the equipment can meet the usage needs of users of various age groups and different physical conditions; the rectification and voltage stabilization module on the main control chip provides a stable power supply for the main control chip to ensure that the main control chip is in a good working condition; the heat dissipation module on the main control chip keeps the control component in a suitable working temperature environment to prevent the main control chip from being damaged due to excessive temperature, thereby maintaining the stability of the entire recoil mechanism; the charging module can store excess electrical energy for outdoor fitness equipment lighting or fitness equipment screen display, and has the advantages of fast response speed, wide adjustment range and high safety. Description of the drawings:

[0021] Figure 1 It is a structural schematic diagram of the pull-back mechanism of the present invention.

[0022] Figure 2 It is the electrical schematic diagram of the present invention.

[0023] Figure 3 This is the electrical schematic diagram of the gear shifting module of the present invention.

[0024] Figure 4 The electrical schematic diagram of the heat dissipation module of the present invention.

[0025] Figure 5 The electrical block diagram of the rectifier and voltage stabilization module of the present invention.

[0026] In the figure, 1, the first resistor, 2, the second resistor, 3, the third resistor, 4, the fourth resistor, 5, the fifth resistor, 6, the sixth resistor, 7, the seventh resistor, 8, the eighth resistor, 9, the ninth resistor, 10, the tenth resistor, 11, the eleventh resistor, 12, the twelfth resistor, 13, the thirteenth resistor, 14, the fourteenth resistor, 15, the fifteenth resistor, 16, the sixteenth resistor, 17, the seventeenth resistor, 18, the eighteenth resistor, 19, the pin. Specific implementation method:

[0027] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0028] Figure 1 It is a structural schematic diagram of the pull-back mechanism of the present invention.

[0029] The force-back mechanism includes an equipment component, which includes fitness equipment or rehabilitation equipment. An electric component is connected to the equipment component, and the electric component is used to generate a force back for use by the equipment component. A control component is connected to the electric component, and the control component is used to adjust the force back generated by the electric component. The control component includes a main control chip, and a gear adjustment module is connected to the main control chip. The gear adjustment module is used to adjust the value of the output current of the main control chip to change the torque of the electric component. An interlocking module is connected to the main control chip, and the interlocking module is used to improve the stability of the power supply controlled by the main control chip. A heat dissipation module is connected to the main control chip, and the heat dissipation module is used to reduce the temperature of the main control chip and the motor. A rectifier and voltage stabilization module is also connected to the main control chip, and the rectifier and voltage stabilization module is used to provide a stable power supply for the main control chip.

[0030] Figure 2 It is the electrical schematic diagram of the present invention.

[0031] The circuit includes a main control chip, a gear adjustment module is connected to the main control chip, and an electric motor is connected to the gear adjustment module. The gear adjustment module is used to adjust the value of the output current of the main control chip to change the torque of the electric motor. An interlocking module is connected to the main control chip, and the interlocking module is used to increase the stability of the main control chip. A heat dissipation module is connected to the main control chip, and the heat dissipation module is used to reduce the temperature of the main control chip and the power resistor. A rectifier and voltage stabilization module is also connected to the main control chip, and the rectifier and voltage stabilization module is used to provide a stable power supply for the main control chip.

[0032] Among them, the model of the main control chip is PIC30F2010, and 28 pins are arranged on the main control chip. Pin No. 1 of the main control chip is connected to the first resistor 1, and the first resistor 1 is connected to the power supply; Pin No. 2 of the main control chip is connected to the second resistor 2, and the second resistor 2 is connected to the current detection pin, and Pin No. 2 is connected to the first capacitor, and the first capacitor is grounded; Pin No. 3 of the main control chip is connected to the voltage detection pin; Pin No. 4 of the main control chip is connected to the temperature detection pin, and the temperature detection pin is used to detect the temperature of the radiator; Pin No. 9 and Pin No. 10 of the main control chip are connected to a crystal oscillator device; Pin No. 11 of the main control chip is connected to the third resistor 3, and the third resistor 3 is connected to the base of the first transistor; Pin No. 12 of the main control chip is connected to the fourth resistor 4, the fourth resistor 4 is connected to the first light-emitting diode, and the first light-emitting diode is grounded; Pin No. 14 of the main control chip is connected to the fifth resistor 5, and the fifth resistor 5 is connected to the positive adjustment pin; Pin No. 15 of the main control chip is connected to the sixth resistor 6, and the sixth resistor 6 is connected to the cooling fan pin, and the cooling fan pin is used to control the opening and closing of the cooling fan; Pin No. 16 of the main control chip is connected to the seventh resistor 7, and the seventh resistor 7 is connected to the negative adjustment pin; Pin No. 19 and Pin No. 27 of the main control chip are short-circuited, and Pin No. 20 and Pin No. 28 of the main control chip are short-circuited; The main control chip is connected to an interlocking module through Pin No. 27 and Pin No. 28; Pin No. 23 of the main control chip is connected to the eighth resistor 8, the eighth resistor 8 is connected to the second light emitting diode, and the second light emitting diode is grounded; Pin No. 24 of the main control chip is connected to the ninth resistor 9, the ninth resistor 9 is connected to the third light emitting diode, and the third light emitting diode is grounded; Pin No. 26 of the main control chip is connected to the thermistor detection pin; the main control chip is connected to a pin through Pin No. 1, Pin No. 17 and Pin No. 18; Pin No. 5, Pin No. 6, Pin No. 7, Pin No. 8, Pin No. 13, Pin No. 21, Pin No. 22 and Pin No. 25 of the main control chip are all empty pins; the pin is a five-pin pin, and the pin is used to burn the program into the main control chip; the pin The first pin of the plug is connected to the first pin of the main control chip, the second pin of the plug is connected to the power supply, the third pin of the plug is grounded, the fourth pin of the plug is connected to the seventeenth pin of the main control chip, and the fifth pin of the plug is connected to the eighteenth pin of the main control chip; an interlocking module is also connected to the main control chip, and the interlocking module is used to improve the stability of the entire circuit. The circuit includes a second capacitor connected to the twenty-eighth pin of the main control chip, the second capacitor is grounded, the second capacitor is connected to the third capacitor, and the third capacitor is connected to the twenty-seventh pin of the main control chip; the third capacitor is connected to the tenth resistor 10, the tenth resistor 10 is connected to the fourth light-emitting diode, and the fourth light-emitting diode is grounded;The tenth resistor 10 is connected to the collector of the second triode, the first switch is connected between the collector and emitter of the second triode, the emitter of the second triode is connected to a power supply, the eleventh resistor 11, the second switch and the twelfth resistor 12 are connected between the base of the second triode and the collector of the first triode, and the emitter of the first triode is grounded. ;

[0033] Figure 3 This is the electrical schematic diagram of the gear shifting module of the present invention.

[0034] The circuit includes a power supply, a third switch and a fourth switch are connected in parallel to the power supply, a fourth capacitor is connected in parallel to the third switch, a fifth capacitor is connected in parallel to the fourth switch, a thirteenth resistor 13 and a fourteenth resistor 14 are connected between the third switch and the fourth switch, a positive adjustment pin is connected between the third switch and the thirteenth resistor 13, and a negative adjustment pin is connected between the fourth switch and the fourteenth resistor 14; each time the positive adjustment pin is connected, the main control chip increases one gear, and when it increases to the highest gear 14, the main control chip lights up the highest indicator light, and then the positive adjustment pin is connected, the gear will be maintained at 14 gears and will not increase; each time the negative adjustment pin is connected, the main control chip decreases one gear, and when it decreases to the lowest gear 1, the main control chip lights up the lowest gear indicator light, and then the negative adjustment pin is connected, the gear will be maintained at 1 gear and will not decrease; the number of gears can be adjusted and selected accordingly according to user needs. In actual use, the negative adjustment pin and the positive adjustment pin can be connected and disconnected by a button or a contact switch.

[0035] Figure 4 The electrical schematic diagram of the heat dissipation module of the present invention.

[0036] The circuit includes a heat dissipation control chip, which is used to control the opening and closing of a heat dissipation fan; the model of the heat dissipation control chip is TC4427, and 8 pins are arranged on the heat dissipation control chip, and the first pin and the eighth pin of the heat dissipation control chip are empty pins; the second pin of the heat dissipation control chip is connected to the fifteenth resistor 15, and the fifteenth resistor 15 is connected to the thermistor detection pin; the third pin of the heat dissipation control chip is grounded; the fourth pin of the heat dissipation control chip is connected to the heat dissipation fan pin; the fifth pin of the heat dissipation control chip is connected to the sixteenth resistor 16, and the sixteenth resistor 16 is connected to the seventeenth resistor 17, and the seventeenth resistor 17 is grounded, and the sixteenth resistor 16 is connected to the first MOS tube, The first MOS tube is connected to the cooling fan; the sixth pin of the main control chip is connected in parallel with the sixth capacitor and the seventh capacitor; the seventh pin of the heat dissipation control chip is connected to the eighteenth resistor 18; the temperature parameters inside the main control chip are detected by the temperature detection pin on the main control chip, and the temperature detection pin can be a thermistor detection pin or a thermocouple detection pin, which can be suitable for different application environments and scenarios; when the internal heat dissipation temperature of the main control chip and its peripheral circuit rises to 55°C, the cooling fan starts and starts to cool down. When the temperature drops below 50°C, the cooling fan stops rotating; a power resistor is also provided in the heat dissipation module to improve the heat dissipation effect, further ensuring that the main control chip is in a suitable temperature condition during operation.

[0037] Figure 5 The electrical block diagram of the rectifier and voltage stabilization module of the present invention.

[0038] The module includes a three-phase power supply, a rectifier bridge module is connected to the three-phase power supply, a first voltage stabilizing module and a second voltage stabilizing module are connected to the rectifier bridge module in sequence, the first voltage stabilizing module is an LM317 voltage stabilizing module, the second voltage stabilizing module is an LM7805 voltage stabilizing module, and a current detection module is also connected to the rectifier bridge module, and the current detection module is an ACS713 current detection module; under the joint action of the first voltage stabilizing module and the second voltage stabilizing module, a stable power supply voltage signal is provided to the main control chip to keep the main control chip in a normal working state and enable the program to run normally; the input current or input voltage is detected by the current detection module and the voltage detection pin to confirm whether the equipment component is in use; for example, when the main control chip detects that the input voltage is less than 3V, the timer in the single-chip microcomputer starts timing, and when the continuous timing reaches 5 minutes, the main control chip is turned off, and when the input voltage is higher than 3V, the timer is reset and the timing is restarted; a charging module is also connected to the main control chip, which can store excess electrical energy to provide lighting power for outdoor fitness equipment or display readings on the equipment display screen.

[0039] In summary, the method for generating pullback force based on a permanent magnet generator includes the following steps:

[0040] Control component startup;

[0041] The induced electromotive force is generated by the action of the equipment components, thereby generating an induced current;

[0042] The magnitude of the induction current is adjusted through the positive adjustment pin and the negative adjustment pin;

[0043] The regulated induction current is output to the electric component so that the electric component generates a returning force for returning the equipment component to an initial position.

[0044] When in use, the user selects a suitable gear through the positive gear adjustment pin and the negative gear adjustment pin, and changes the output torque of the motor by changing the size of the output current, thereby adjusting the size of the return force; the size of the return force can be divided into 10-16 gears, which can meet the needs of user groups of different age groups and different physical conditions; the present invention can be applied to fitness equipment and physical rehabilitation equipment, and the main control chip performs real-time detection of parameters such as the output current, the voltage of the rectified output and the temperature of the radiator to ensure that the equipment does not fluctuate during use, thereby increasing the safety of the equipment during use; the main control chip and the interlocking module, the gear adjustment module and the heat dissipation module are connected respectively, so that the entire control circuit is in a stable state, reducing errors in data transmission and data detection; the heat dissipation module, through the joint action of the heat dissipation control chip and the heat dissipation fan, under the control of the main control chip, performs heat dissipation treatment on the motor, keeps the motor in a good working environment, does not overheat, and enables the motor to perform corresponding actions according to the selected gear, thereby further improving safety; the program can be burned into the main control chip through the pin 19, so that the user can adjust the control program according to actual needs. Among them, the warning values ​​of temperature, input voltage and input current can be adjusted accordingly through the program in the main control chip, so that the pull-back mechanism can be suitable for different environments and scenarios; generally, there are 1 to 14 gears on the main control chip, each gear corresponds to a different force, and the corresponding forces increase from 1 to 14 gears in sequence. There are 4 buttons on the main control chip, namely: "On", "Off", "+", and "-". Press "On" to start the main control chip, and the corresponding indicator light comes on. The default initial gear is 1 gear, and the lowest gear indicator light comes on; press "Off" to stop the main control chip from working, and the corresponding indicator light turns off: each time "+" is pressed, the main control chip adds one gear. When it is increased to the highest gear 14, the highest gear indicator light comes on, and pressing "+" again will maintain the gear at 14 and no longer increase; each time "-" is pressed, the main chip decreases one gear. When it is reduced to the lowest gear 1, the lowest gear indicator light comes on, and pressing "-" again will maintain the gear at 1 gear and no longer decrease.

[0045] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0046] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A pull-back mechanism based on a permanent magnet generator, characterized in that: The invention comprises an equipment component, an electric component is connected to the equipment component, the electric component is used to generate a back force for use by the equipment component, a control component is connected to the electric component, the control component is used to adjust the back force generated by the electric component, the control component comprises a gear adjustment module, the gear adjustment module is used to adjust the value of the control current of the main control chip to change the torque of the electric component, the control component comprises an interlocking module, the interlocking module is used to improve the stability of the control component, the control component comprises a heat dissipation module, the heat dissipation module is used to reduce the temperature of the control component, and the main control chip also comprises a rectifier and voltage stabilization module, the rectifier and voltage stabilization module is used to provide a stable power supply for the control component; The model of the main control chip is PIC30F2010, and 28 pins are arranged on the main control chip. Pin No. 1 of the main control chip is connected to a first resistor, and the first resistor is connected to a power supply; Pin No. 2 of the main control chip is connected to a second resistor, and the second resistor is connected to a current detection pin, and Pin No. 2 is connected to a first capacitor, and the first capacitor is grounded; Pin No. 3 of the main control chip is connected to a voltage detection pin; Pin No. 4 of the main control chip is connected to a temperature detection pin, and the temperature detection pin is used to detect the temperature of the radiator; Pin No. 9 and Pin No. 10 of the main control chip are connected with a crystal oscillator device; Pin No. 11 of the main control chip is connected to a third resistor, and the third resistor is connected to the base of the first triode; Pin No. 12 of the main control chip is connected to a fourth resistor, and the fourth resistor is connected to a first light-emitting diode, and the first light-emitting diode is grounded; Pin No. 14 of the main control chip is connected to a fifth resistor, and the fifth resistor is connected to a positive adjustment pin; Pin No. 15 of the main control chip is connected to a sixth resistor, and the sixth resistor is connected to a heat dissipation fan Fan pin, the cooling fan pin is used to control the opening and closing of the cooling fan; Pin 16 of the main control chip is connected to the seventh resistor, and the seventh resistor is connected to the negative adjustment pin; Pin 19 and Pin 27 of the main control chip are short-circuited, and Pin 20 and Pin 28 of the main control chip are short-circuited; the main control chip is connected to an interlocking module through Pin 27 and Pin 28; Pin 23 of the main control chip is connected to the eighth resistor, and the eighth resistor is connected to the second light-emitting diode, and the second light-emitting diode is grounded; Pin 24 of the main control chip is connected to the ninth resistor, and the ninth resistor is connected to the third light-emitting diode, and the third light-emitting diode is grounded; Pin 26 of the main control chip is connected to the thermistor detection pin; The main control chip is connected to a pin through Pin 1, Pin 17 and Pin 18; Pin 5, Pin 6, Pin 7, Pin 8, Pin 13, Pin 21, Pin 22 and Pin 25 of the main control chip are all empty pins; The plug is a five-pin plug, and the plug is used to burn the program into the main control chip; the first pin of the plug is connected to the first pin of the main control chip, the second pin of the plug is connected to the power supply, the third pin of the plug is grounded, the fourth pin of the plug is connected to the seventeenth pin of the main control chip, and the fifth pin of the plug is connected to the eighteenth pin of the main control chip; The interlocking module includes a second capacitor connected to pin 28 of the main control chip, the second capacitor is grounded, the second capacitor is connected to a third capacitor, and the third capacitor is connected to pin 27 of the main control chip; a tenth resistor is connected to the third capacitor, the tenth resistor is connected to a fourth light-emitting diode, and the fourth light-emitting diode is grounded; the tenth resistor is connected to the collector of the second triode, a first switch is connected between the collector and the emitter of the second triode, the emitter of the second triode is connected to a power supply, an eleventh resistor, a second switch and a twelfth resistor are connected between the base of the second triode and the collector of the first triode, and the emitter of the first triode is grounded; The gear adjustment module includes a power supply, a third switch and a fourth switch are connected in parallel to the power supply, a fourth capacitor is connected in parallel to the third switch, a fifth capacitor is connected in parallel to the fourth switch, a thirteenth resistor and a fourteenth resistor are connected between the third switch and the fourth switch, a positive gear adjustment pin is connected between the third switch and the thirteenth resistor, and a negative gear adjustment pin is connected between the fourth switch and the fourteenth resistor; each time the positive gear adjustment pin is connected, the main control chip increases one gear, when it increases to the highest gear, the main control chip lights up the highest indicator light, and then the positive gear adjustment pin is connected, the gear position will be maintained at the gear and will not increase; each time the negative gear adjustment pin is connected, the main control chip decreases one gear, when it decreases to the lowest gear, the main control chip lights up the lowest gear indicator light, and then the negative gear adjustment pin is connected, the gear position will be maintained at gear 1 and will not decrease; The heat dissipation module includes a heat dissipation control chip, which is used to control the opening and closing of the heat dissipation fan; the model of the heat dissipation control chip is TC4427, and 8 pins are provided on the heat dissipation control chip, and the first pin and the eighth pin of the heat dissipation control chip are empty pins; the second pin of the heat dissipation control chip is connected to the fifteenth resistor, and the fifteenth resistor is connected to the thermistor detection pin; the third pin of the heat dissipation control chip is grounded; the fourth pin of the heat dissipation control chip is connected to the heat dissipation fan pin; the fifth pin of the heat dissipation control chip is connected to the sixteenth resistor, the sixteenth resistor is connected to the seventeenth resistor, the seventeenth resistor is grounded, the sixteenth resistor is connected to the first MOS tube, and the first MOS tube is connected to the heat dissipation fan; the sixth pin of the main control chip is connected in parallel with the sixth capacitor and the seventh capacitor; the seventh pin of the heat dissipation control chip is connected to the eighteenth resistor; The rectifier and voltage stabilizing module includes a three-phase power supply, a rectifier bridge module is connected to the three-phase power supply, a first voltage stabilizing module and a second voltage stabilizing module are sequentially connected to the rectifier bridge module, the first voltage stabilizing module is an LM317 voltage stabilizing module, the second voltage stabilizing module is an LM7805 voltage stabilizing module, and a current detection module is also connected to the rectifier bridge module, and the current detection module is an ACS713 current detection module.

2. The pull-back mechanism according to claim 1, characterized in that: The main control chip is also connected to a charging module, and the charging module is used to store electric energy.

3. A method for controlling a pull-back mechanism based on a permanent magnet generator according to claim 1, comprising the following steps: The control component generates an induced electromotive force through the action of the equipment component, thereby generating an induced current; The magnitude of the induced current is adjusted by a positive adjustment pin and a negative adjustment pin; wherein the positive adjustment pin is connected to a third switch, a fourth capacitor is connected in parallel to the third switch, and the negative adjustment pin is connected to a fourth switch, a fifth capacitor is connected in parallel to the fourth switch; The regulated induction current is output to the electric component so that the electric component generates a returning force for returning the equipment component to an initial position.

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