Search

CN-224205004-U - Motor drive plate and motor

CN224205004UCN 224205004 UCN224205004 UCN 224205004UCN-224205004-U

Abstract

The application provides a motor driving plate and a motor, which belong to the technical field of motor control, wherein the driving plate comprises a voltage conversion module, a motor driving module and a motor driving module, wherein the voltage conversion module is used for carrying out direct-current conversion on voltage accessed by a power supply input end, and the power supply voltage is multiple; the system comprises a voltage stabilizing module, a signal transmission module, a control module, a signal transmission module, a current regulation module and a current regulation module, wherein the voltage stabilizing module is used for carrying out voltage stabilizing conversion on voltage after direct current conversion, the signal transmission module is used for receiving an instruction issued by an upper computer and transmitting the instruction to the control module based on the voltage after direct current conversion, the control module is used for generating a control signal based on the voltage after voltage stabilizing conversion and transmitting the control signal to the signal transmission module and the driving module, the signal transmission module is used for receiving the control signal and feeding back the control signal to the upper computer, the driving module is used for generating a driving signal based on the voltage accessed to a power supply input end and running a driving motor according to the driving signal and configuration parameters, and the current regulation module is used for regulating the maximum driving current output by the driving module. The power supply of the scheme of the application is various, and the maximum driving current can be adjusted.

Inventors

  • LIN RUNFENG

Assignees

  • 深圳安赛诊断技术有限公司

Dates

Publication Date
20260505
Application Date
20250514

Claims (11)

  1. 1. The motor driving plate is characterized by comprising a voltage conversion module, a voltage stabilizing module, a control module, a signal transmission module, a driving module and a current adjusting module; The output end of the voltage conversion module is connected with the input end of the voltage stabilizing module and the signal transmission module, the voltage conversion module is used for carrying out direct current conversion on the voltage accessed by the power supply input end, and the voltage accessed by the power supply input end is multiple; the voltage stabilizing module is also connected with the control module and is used for stabilizing and converting the voltage after direct current conversion; The signal transmission module is also connected with the CAN communication interface of the upper computer and the control module and is used for receiving an instruction issued by the upper computer based on the voltage after direct current conversion and transmitting the instruction to the control module; The control module is also connected with the driving module, an in-place detection optocoupler switch of the control module is connected with an in-place detection interface of the motor body, and the control module is used for generating a control signal according to the instruction based on the voltage after voltage stabilization conversion and transmitting the control signal to the signal transmission module and the driving module; the driving module is also connected with the power supply input end and the current regulating module and is used for generating a driving signal according to the control signal based on the voltage accessed by the power supply input end and driving a motor to operate according to the driving signal and configuration parameters; And the current adjusting module is used for adjusting the maximum driving current output by the driving module.
  2. 2. The motor drive board according to claim 1, wherein the voltage conversion module includes a voltage conversion control unit, a first current limiting unit, a rectifying and filtering unit, a first voltage dividing unit, a first filtering unit, and a first resistor; The power input pin of the voltage conversion control unit is connected with the first end of the first current limiting unit and the power supply input end, the enabling pin of the voltage conversion control unit is connected with the second end of the first current limiting unit, and the grounding pin of the voltage conversion control unit and the third end of the first current limiting unit are grounded; The frequency adjusting pin of the voltage transformation control unit is connected with the first end of the first resistor, and the second end of the first resistor is connected with the second end of the first filtering unit; the switch pin of the voltage transformation control unit is connected with the first end of the rectification filter unit, the bootstrap pin of the voltage transformation control unit is connected with the second end of the rectification filter unit, the third end of the rectification filter unit is connected with a power supply and the first end of the first voltage division unit, and the fourth end of the rectification filter unit is grounded; The feedback pin of the voltage transformation control unit is connected with the second end of the first voltage division unit, and the third end of the first voltage division unit is grounded; The voltage transformation control unit is used for controlling the power supply voltage to carry out direct current transformation, the first current limiting unit is used for limiting the current of the power supply voltage, the rectifying and filtering unit is used for rectifying and filtering the output voltage, the first voltage dividing unit is used for dividing the output voltage, and the first filtering unit is used for filtering the output voltage.
  3. 3. The motor drive board according to claim 1, wherein the voltage stabilizing module includes a voltage stabilizing unit, a second filtering unit, and a third filtering unit; The power input pin of the voltage stabilizing unit is connected with the output end of the voltage conversion module and the first end of the second filtering unit, and the second end of the second filtering unit and the second end of the third filtering unit are grounded; The power output pin of the voltage stabilizing unit is connected with the first end of the third filtering unit, and the first end of the third filtering unit is also connected with the control module; The voltage stabilizing unit is used for stabilizing and converting the voltage after direct current conversion, the second filtering unit is used for filtering the voltage after direct current conversion, and the third filtering unit is used for filtering the voltage after voltage stabilizing and converting.
  4. 4. The motor drive board according to claim 2, wherein the first current limiting unit includes a second resistor and a third resistor, the rectifying and filtering unit includes a first capacitor, a zener diode, and a first inductor, the first voltage dividing unit includes a fourth resistor and a fifth resistor, and the first filtering unit includes a second capacitor, a third capacitor, and a sixth resistor; The first end of the second resistor is connected with the power supply input end, the serial connection node of the second resistor and the third resistor is connected with the enabling pin of the voltage conversion control unit, and the second end of the third resistor is grounded; The first end of the first capacitor is connected with the switch pin of the voltage transformation control unit, the cathode of the voltage stabilizing diode and the first end of the first inductor, the second end of the first capacitor is connected with the bootstrap pin of the voltage transformation control unit, the anode of the voltage stabilizing diode is grounded, and the second end of the first inductor is connected with the input end of the voltage stabilizing module; The first end of the fourth resistor is connected with the second end of the first inductor, the series node of the fourth resistor and the fifth resistor is connected with the feedback pin of the voltage transformation control unit, and the second end of the fifth resistor is grounded; The first end of the second capacitor and the first end of the third capacitor are connected with the compensation pin of the voltage transformation control unit, the second end of the second capacitor is connected with the first end of the sixth resistor, and the second end of the third capacitor and the second end of the sixth resistor are grounded.
  5. 5. The motor drive board according to claim 1, wherein the control module includes a control unit, a fourth filter unit, a fifth filter unit, and a sixth filter unit; A fourteenth GPIO pin of the control unit is connected with the second end of the fourth filtering unit, a fifteenth GPIO pin of the control unit is connected with the fourth end of the fourth filtering unit, the first end of the fourth filtering unit is connected with a power supply, and the third end of the fourth filtering unit is grounded; The first main power input pin of the control unit is connected with the first end of the fifth filtering unit, the asynchronous reset pin of the control unit is connected with the third end of the fifth filtering unit, the second end of the fifth filtering unit is connected with a power supply, and the fourth end of the fifth filtering unit is grounded; The analog power input pin of the control unit is connected with the first end of the sixth filtering unit, the second end of the sixth filtering unit is connected with a power supply, and the third end of the sixth filtering unit is grounded; The fourth filtering unit is used for filtering the power supply voltage, the fifth filtering unit is used for filtering the power supply voltage, and the sixth filtering unit is used for filtering the voltage after voltage stabilization conversion.
  6. 6. The motor drive board according to claim 5, wherein the fourth filter unit includes a seventh resistor, an eighth resistor, and an eighth capacitor, the fifth filter unit includes a ninth resistor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, and a twelfth capacitor, and the sixth filter unit includes a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, a seventeenth capacitor, a second inductor, and a third inductor; The first end of the seventh resistor and the first end of the eighth resistor are connected with a power supply, the second end of the seventh resistor is connected with a fourteenth GPIO pin of the control unit, the second end of the eighth resistor and the first end of the eighth resistor are grounded, and the second end of the eighth resistor is connected with a fifteenth GPIO pin of the control unit; The ninth resistor, the tenth capacitor, the eleventh capacitor and the twelfth capacitor are connected in parallel, a first end of the ninth capacitor is connected with a second end of the ninth resistor, a second end of the ninth capacitor is connected with a second end of the tenth capacitor, a first end of the ninth resistor is connected with a first main power supply input pin of the control unit, a second end of the ninth resistor is connected with an asynchronous reset pin of the control unit, a first end of the twelfth capacitor is connected with a power supply, and a second end of the twelfth capacitor is grounded; the thirteenth capacitor, the fourteenth capacitor, the fifteenth capacitor, the sixteenth capacitor and the seventeenth capacitor are connected in parallel, a first end of the second inductor is connected with a first end of the sixteenth capacitor, a second end of the second inductor is connected with a first end of the seventeenth capacitor, a first end of the third inductor is connected with a first end of the seventeenth capacitor, a second end of the third inductor is connected with a power supply, a first end of the thirteenth capacitor is connected with an analog power supply input pin of the control unit, a first end of the sixteenth capacitor is connected with the power supply, a first end of the seventeenth capacitor is connected with an output end of the voltage stabilizing module, and a second end of the seventeenth capacitor is grounded.
  7. 7. The motor drive board according to claim 1, wherein the signal transmission module includes a signal transmission unit, a tenth resistor, an eleventh resistor, a twelfth resistor, an eighteenth capacitor, and a nineteenth capacitor; The power input pin of the signal transmission unit is connected with the output end of the voltage conversion module and the second end of the eighteenth capacitor, and the first end of the eighteenth capacitor is grounded; the serial data transmitting pin of the signal transmission unit is connected with the control module, and the serial data receiving pin of the signal transmission unit is connected with the control module; The high-level signal output pin of the signal transmission unit is connected with the first end of the tenth resistor, the second end of the tenth resistor is connected with the upper computer, the low-level signal output pin of the signal transmission unit is connected with the first end of the eleventh resistor, and the second end of the eleventh resistor is connected with the upper computer; The system power supply latch control pin of the signal transmission unit is connected with the first end of the nineteenth capacitor, the second end of the nineteenth capacitor is grounded, and the grounding pin of the signal transmission unit is grounded.
  8. 8. The motor drive board according to claim 1, wherein the drive module includes a drive unit, a thirteenth resistor, a twentieth capacitor, a twenty-first capacitor, a twenty-second capacitor, a twenty-third capacitor, a twenty-fourth capacitor, and a twenty-fifth capacitor; The second power supply output pin of the driving unit is connected with the first end of the thirteenth resistor and the first end of the twenty-first capacitor, the second end of the thirteenth resistor is connected with a power supply, and the second end of the twenty-first capacitor is grounded; The power control pin of the driving unit is connected with the first end of the twenty-third capacitor, and the power supply input pin of the driving unit is connected with the second end of the twenty-third capacitor; The current parameter input pin of the driving unit is connected with the first end of the twenty-fourth capacitor, the current parameter output pin of the driving unit is connected with the second end of the twenty-fourth capacitor, the second power supply input pin of the driving unit is connected with the first end of the twenty-fifth capacitor, and the second end of the twenty-fifth capacitor is grounded.
  9. 9. The motor drive board of claim 1, wherein the current regulation module comprises a first sampling resistor, a second sampling resistor, a first power switch, a second power switch, a third power switch, and a fourth power switch; The first end of the second sampling resistor is connected with the first source electrode and the second source electrode of the fourth power switch, and the second end of the second sampling resistor is grounded; The first source electrode of the first power switch is connected with the first drain electrode of the second power switch, the second source electrode of the first power switch is connected with the second drain electrode of the second power switch, the first grid electrode and the second grid electrode of the first power switch are connected with the driving module, the drain electrode of the first power switch is connected with the drain electrode of the third power switch, and the first grid electrode and the second grid electrode of the second power switch are connected with the driving module; The first source electrode of the third power switch is connected with the first drain electrode of the fourth power switch, the second source electrode of the third power switch is connected with the second drain electrode of the fourth power switch, the first grid electrode and the second grid electrode of the third power switch are connected with the driving module, and the first grid electrode and the second grid electrode of the fourth power switch are connected with the driving module.
  10. 10. The motor drive board according to any one of claims 1 to 9, further comprising a storage module and a heat dissipation module; The heat dissipation module is arranged on the voltage conversion module, the driving module and the current regulation module and is used for dissipating heat of the voltage conversion module, the driving module and the current regulation module.
  11. 11. An electric motor, characterized in that the electric motor comprises a motor body and a motor drive plate according to any one of claims 1 to 10, the motor drive plate being fixed to the outside of the motor body in the form of a backpack, the drive module of the motor drive plate being connected to the motor body.

Description

Motor drive plate and motor Technical Field The application relates to the technical field of motor control, in particular to a motor driving plate and a motor. Background At present, the existing stepping motor driving controller has the defects of larger volume, more communication interfaces, inflexible cutting, larger maintenance and debugging difficulty, unreliable performance of a driving part of a driving circuit, poor protection performance and higher cost. In the fields of industry, business, medicine, optics, robots and the like requiring low power consumption, in particular to a two-phase stepping motor driving plate for in-vitro diagnosis medical equipment, which has high precision, high reliability and stability, is mainly controlled by aiming at a motion assembly, and is an indispensable device for realizing linkage of all the components of the equipment, sample collection analysis and the like. However, the power supply of the motor driving board in the prior art is single, and the maximum driving current is not adjustable, so that the locked-rotor current is overlarge or a short-circuit fault is caused. Disclosure of utility model The application aims to provide a motor driving plate and a motor, which can solve the problems that the power supply of the motor driving plate in the prior art is single and the maximum driving current is not adjustable. In a first aspect, an embodiment of the present application provides a motor driving board, where the driving board includes a voltage conversion module, a voltage stabilizing module, a control module, a signal transmission module, a driving module, and a current adjusting module; The output end of the voltage conversion module is connected with the input end of the voltage stabilizing module and the signal transmission module, and the voltage conversion module is used for carrying out direct current conversion on the voltage accessed by the power supply input end, and the voltage accessed by the power supply input end is multiple; the voltage stabilizing module is also connected with the control module and is used for stabilizing and converting the voltage after direct current conversion; The signal transmission module is also connected with the CAN communication interface of the upper computer and the control module and is used for receiving the instruction issued by the upper computer based on the voltage after direct current conversion and transmitting the instruction to the control module; the control module is also connected with the driving module, the in-place detection optocoupler switch of the control module is connected with the in-place detection interface of the motor body, and the control module is used for generating a control signal according to the instruction based on the voltage after voltage stabilization conversion and transmitting the control signal to the signal transmission module and the driving module; The driving module is also connected with the power supply input end and the current regulating module and is used for generating a driving signal according to the control signal based on the voltage accessed by the power supply input end and driving the motor to operate according to the driving signal and the configuration parameters; And the current adjusting module is used for adjusting the maximum driving current output by the driving module. In one possible implementation manner of the first aspect, the voltage conversion module includes a voltage conversion control unit, a first current limiting unit, a rectifying and filtering unit, a first voltage dividing unit, a first filtering unit, and a first resistor; The power input pin of the voltage conversion control unit is connected with the first end and the power supply input end of the first current limiting unit, the enabling pin of the voltage conversion control unit is connected with the second end of the first current limiting unit, and the grounding pin of the voltage conversion control unit and the third end of the first current limiting unit are grounded; The frequency adjusting pin of the voltage transformation control unit is connected with the first end of the first resistor, and the second end of the first resistor is connected with the second end of the first filtering unit; The switch pin of the voltage transformation control unit is connected with the first end of the rectification filter unit, the bootstrap pin of the voltage transformation control unit is connected with the second end of the rectification filter unit, the third end of the rectification filter unit is connected with the power supply and the first end of the first voltage division unit, and the fourth end of the rectification filter unit is grounded; The feedback pin of the voltage transformation control unit is connected with the second end of the first voltage division unit, and the third end of the first voltage division unit is grounded; The voltage conversion control unit is used fo