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DC Motor Control System

A DC motor and control system technology, applied in the direction of DC motor rotation control, excitation or armature current control, etc., can solve the problems of energy waste, unstable voltage flowing into the motor, affecting the rotating performance of the motor, etc. The effect of improving stability

Active Publication Date: 2022-08-05
佛山一诺微特电机系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some existing motors need forward and reverse rotation in daily use. In the first half cycle, the electric energy is converted into mechanical energy to work. When the second half cycle is reversed, the existing technology generally uses braking resistors for braking, which will cause reverse rotation. The electric energy in the resistance is converted into heat energy and dissipated, resulting in waste of energy, and the voltage flowing into the motor is unstable when the steering is switched, which affects the rotation performance of the motor

Method used

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Examples

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Embodiment 1

[0016] see figure 1 , the DC motor control system provided by this embodiment includes a DC voltage generating unit 1 , a DC motor 2 , a voltage-stabilizing diode 3 and a voltage-stabilizing load 4 .

[0017] Specifically, the DC voltage generating unit 1 , the DC motor 2 and the voltage-stabilizing load 4 are electrically connected end to end in order to form an electrical loop, the voltage-stabilizing diode 3 is connected in parallel with the voltage-stabilizing load 4 , and the anode end of the voltage-stabilizing diode 3 is connected to the voltage-stabilizing load. The first end of 4 is electrically connected, and the cathode end of the zener diode 3 is electrically connected to the second end of the stabilizing load 4; in actual use, the DC voltage generating unit 1 can output voltage along the direction of its first end or the second end. The DC voltage whose value is greater than the reverse breakdown voltage value of the Zener diode 3 changes the direction of the DC m...

Embodiment 2

[0020] On the basis of Embodiment 1, this embodiment provides another DC motor control system, refer to figure 2 , in this embodiment, the voltage-stabilizing load 4 is a voltage-stabilizing resistor 5 . When the Zener diode 3 is damaged or short-circuited due to other reasons, the DC voltage generated from the second end of the DC voltage generating unit 1 flows directly to the branch of the Zener resistor 5, and the voltage of the DC motor 2 is U-U R (U R is the voltage value of the voltage regulator resistor 5).

Embodiment 3

[0022] On the basis of Embodiment 1, this embodiment provides another DC motor control system, refer to image 3 , in this embodiment, the voltage stabilizing load 4 is a unidirectional diode 6, wherein the number of unidirectional diodes 6 is multiple, each unidirectional diode 6 is connected in series in the same direction, and the access direction of the unidirectional diode 6 is the same as that of the voltage stabilizer The connection direction of the diode 3 is opposite, the resistance value (or the sum of the resistance values) of the one-way diode 6 is close to the resistance value of the Zener diode 3, and the DC voltage generated from the second end of the DC voltage generating unit 1 flows to the Zener diode at the same time. The branch of 3 and the branch of the one-way diode 6, at this time, the Zener diode 3 is in a reverse breakdown state, and the voltage across each one-way diode 6 is stable at the reverse breakdown voltage value of the Zener diode 3 (U Z ), at...

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Abstract

The invention relates to the technical field of motors, in particular to a DC motor control system, comprising a DC voltage generating unit, a DC motor, a zener diode and a voltage stabilizing load. The DC voltage generating unit, the DC motor and the voltage stabilizing load are electrically connected end to end in order to An electrical circuit is formed, the anode end of the zener diode is electrically connected with the first end of the stabilizing load, the cathode end of the zener diode is electrically connected with the second end of the stabilizing load, and the DC voltage generating unit is configured to be along its first end The output voltage value in the direction or the second terminal direction is greater than the DC voltage of the reverse breakdown voltage value of the Zener diode. The invention overcomes the defect that the voltage flowing into the motor is unstable when the steering is switched, and effectively improves the stability of the DC motor during steering by arranging a combination of a voltage-stabilizing diode and a voltage-stabilizing load in the motor control circuit.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a direct current motor control system. Background technique [0002] A motor is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field and acts on the rotor to form a magnetoelectric rotational torque. It is mainly composed of a stator and a rotor. The direction of the current is related to the direction of the magnetic field lines. [0003] Some existing motors need forward and reverse rotation in daily use. In the first half cycle of forward rotation, the electrical energy is converted into mechanical energy to work, and when the second half cycle is reversed, the existing technology generally uses braking resistors for braking, which will cause reverse rotation. The electric energy of the resistance is converted into heat energy and dissipated, causing energy waste, and the voltage flowing into the motor...

Claims

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Application Information

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IPC IPC(8): H02P7/18H02P7/03H02P7/28
CPCH02P7/18H02P7/03H02P7/28
Inventor 王长军
Owner 佛山一诺微特电机系统有限公司