Variable-frequency brushless direct current motor

Abstract

The invention discloses a variable-frequency brushless direct current motor, which comprises a rotating shaft, a motor casing, a stator, a rotor and a fan cover, wherein the motor casing is fixed on a motor base; the surface of the motor casing is provided with a plurality of cooling fins; the front end of the motor casing is connected to a front end cover; the rear end of the motor casing is connected with a rear end cover; the rotor is arranged in the motor casing; a rotating shaft penetrates through the rotor; the stator is correspondingly arranged outside the rotor; a plurality of winding coils area arranged on the stator; magnetic steel which is arranged in the circumference sleeves the stator and is fixed on the motor casing; the rear end of the magnetic steel is connected to an electronic board; the electronic board is arranged at the outer side of the rear end cover; the fan cover is arranged at the outer side of the rear end cover; and a fan blade is arranged at the end part of the rotating shaft. By the variable-frequency brushless direct current motor, AC is effectively converted into DC; the variable-frequency brushless direct current motor is constant and stable; the efficiency of the motor is improved; the cooling effect is good; the control accuracy of the motor is improved; and continuous work of the motor is facilitated.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a variable frequency brushless DC motor. Background technique [0002] A brushless motor usually consists of a housing, a rotor inside the housing, a stator, and a shaft mounted on the rotor. The conventional brushless motor has a simple structure and is widely used, but the conventional brushless motor cannot achieve high-speed operation, and the efficiency of the motor is low. , the control system of the motor is not synchronized with the speed, there is a large error, and it cannot effectively convert AC power into DC power. The performance is not high. Contents of the invention [0003] The object of the present invention is to provide a variable frequency brushless DC motor to solve the problems raised in the above background technology. [0004] To achieve the above object, the present invention provides the following technical solutions: [0005] A variable frequency b...

AI Technical Summary

Problems solved by technology

[0002] Brushless motors usually consist of a housing, a rotor inside the housing, a stator, and a shaft mounted on the rotor. Conventional brushless motors have a simple structure and are widely used, but conventional brushless motors cannot achieve high-speed operation, and the efficiency of the motor is low. , the control system of the motor is not synchronized with the speed, there is a large error, and it cannot effectively convert AC power into DC power, the accuracy of the motor is relatively low, the air inside the motor does not flow, and the heat dissipation is slow, which makes the motor unsuitable for continuous and stable work. poor performance

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