Winding type brushless doubly-fed motor with novel cooling function

Abstract

The invention discloses a winding type brushless doubly-fed motor with a novel cooling function. The winding type brushless doubly-fed motor comprises a motor main body, a moving rod is inserted into one side of the top end of the outer wall of the motor main body, a spring is fixedly arranged at the bottom end of the moving rod, the bottom end of the spring is fixedly arranged at the bottom end in the motor main body, and a first fixing shaft is fixedly arranged at the bottom end of the outer wall of the moving rod. Through the arrangement of the pressing block, the moving rod, the first fixing shaft, the spring, the connecting rod, the second fixing shaft, the clamping piece and the clamping rods, the pressing block is pressed downwards to drive the moving rod to move downwards, then the two clamping rods are driven to move towards the two ends till one end of each clamping rod is separated from clamping holes in the two sides of the outer wall of the front end cover, and then the front end cover is moved leftwards until a shaft sleeve on one side of the front end cover is not contacted with the rotating shaft; and in this way, the front end cover can be quickly disassembled without consuming a large amount of time to disassemble the bolts, time and labor are saved, and the interior of the motor body can be conveniently and timely detected and maintained.

Description

technical field [0001] The invention relates to the field of double-fed motors, in particular to a winding brushless double-fed motor with novel cooling. Background technique [0002] The technical term of doubly-fed motor is called AC excitation generator. Because the rotor of doubly-fed motor is excited by AC voltage, it has a flexible operation mode. Compared with traditional generators, brushless doubly-fed motor has fixed power winding and The capacity of the control winding and the inverter only needs to match the power borne by the control winding, which makes the operating cost of the brushless double-fed motor lower, and is widely used in power stations with continuous power frequency overvoltage, variable speed and constant frequency power generation, and pumped storage power stations Motor-generator speed regulation and other aspects. [0003] In existing life, the traditional wire-wound brushless double-fed motor usually uses multiple bolts to connect and fix th...

AI Technical Summary

Problems solved by technology

[0003] In existing life, the traditional wire-wound brushless double-fed motor usually uses multiple bolts to connect and fix the front end cover and the motor body. When a fault occurs inside the motor, it takes a lot of time to disassemble the front cover, and It is impossible to detect and repair the inside of the motor in time, which may easily cause damage to the motor. At the same time, the double-fed motor is prone to motor overheating during operation, because the ventilation and cooling system of the traditional winding brushless double-fed motor cannot dissipate the heat inside the motor in time. going out, causing the internal temperature of the motor to rise, reducing the efficiency of the motor, and accelerating the aging of the internal insulation structure of the motor, so a winding type brushless doubly-fed motor with a new type of cooling is required

Images