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A kind of frequency conversion speed regulator for AC permanent magnet synchronous motor with direct current power supply for mining

A permanent magnet synchronous motor and variable frequency speed controller technology, applied in the direction of AC motor control, motor control, power electronics modification, etc., can solve the problems of easy damage and short service life, so as to reduce the air pressure intensity, ensure the working environment, The effect of facilitating the investigation of potential safety hazards

Active Publication Date: 2020-05-22
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although this kind of technical solution has the advantages of simple hardware structure, reliable operation, and low cost when used; Short life and other problems, for this reason, we proposed a mining DC power AC permanent magnet synchronous motor frequency converter to solve the above problems

Method used

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  • A kind of frequency conversion speed regulator for AC permanent magnet synchronous motor with direct current power supply for mining
  • A kind of frequency conversion speed regulator for AC permanent magnet synchronous motor with direct current power supply for mining
  • A kind of frequency conversion speed regulator for AC permanent magnet synchronous motor with direct current power supply for mining

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Embodiment Construction

[0026] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the following will further elaborate the present invention in conjunction with the specific embodiments. figure 1 as the benchmark.

[0027] Such as Figure 1 to Figure 6 As shown, a kind of DC power supply AC permanent magnet synchronous motor variable frequency speed governor for mining according to the present invention includes a speed governor 1, and the speed governor 1 includes a vibration chamber 2, a cooling chamber 3, a speed regulating knob 4 and Adjust the button 5, the vibration chamber 2 is positioned at the lower side of the governor 1, the vibration chamber 2 is used to collect the vibration energy in the motor and the mine, the vibration chamber 2 includes a vibration spring 6, a pressing plate 7, a polygonal hole 8, an elastic membrane 9, Air collection air bag 10, air guide hole 11, sealing plate 12, air intake hole 13, cam...

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Abstract

The invention belongs to the technical field of variable frequency speed regulation control, and specifically relates to a variable frequency speed regulator for an AC permanent magnet synchronous motor of a mining DC power supply, including a speed governor, and the speed governor includes a vibration chamber, a heat dissipation chamber, and a speed regulation knob and the adjustment button, one set of the vibrating spring is located at the bottom of the vibrating chamber, the lower end of the vibrating spring is fixedly connected to the vibrating chamber, and the upper end of the vibrating spring is fixedly connected to the pressing plate; The vibration chamber is fixedly connected, and there are air guide holes on the air-collecting airbag and the elastic membrane; the sealing plate is located on the side of the vibration chamber, and the sealing plate is used to seal the vibration chamber. There are air inlet holes on the sealing plate, and two sets of cams are arranged along the rotating shaft. The cam is fixedly connected with the rotating shaft, and the upper surface of the cam far away from the air inlet hole is provided with a push rod, which is fixedly connected with the pressure plate; the rotating shaft is fixedly connected with a torsion spring, and the rotating shaft is connected in the height-adjusting chamber in rotation; a rotating plate is hinged in the heat dissipation chamber; The gas entering the governor is kept dry and clean, ensuring the working environment inside the governor.

Description

technical field [0001] The invention belongs to the technical field of frequency conversion and speed regulation control, in particular to a frequency conversion speed regulator for an AC permanent magnet synchronous motor with a direct current power supply for mining. Background technique [0002] The frequency conversion speed controller is a device that converts the power frequency power (50Hz or 60Hz) into AC power of various frequencies to realize the variable speed operation of the motor. The control circuit completes the control of the main circuit, and the rectifier circuit converts the AC into DC. The DC intermediate circuit smoothes and filters the output of the rectifier circuit, and the inverter circuit inverts the DC power into AC power. [0003] At present, the use of AC motors to replace DC motors has become the mainstream direction of the development of modern power transmission and servo systems. The motors commonly used in AC drive systems mainly include s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/00H02P27/06H02P25/024H05K7/20B01D46/00B01D53/04B01D53/26
CPCH02M1/00H02P27/06H02P25/024H05K7/20909H05K7/20181H05K7/20145B01D46/0036B01D53/04B01D53/266B01D53/261H02P2207/05B01D46/62
Inventor 周军鹏王爽郭永存程刚胡坤李德永
Owner ANHUI UNIV OF SCI & TECH
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