Low-harmonic-content hub motor of electric automobile

Abstract

The invention discloses a low-harmonic-content hub motor of an electric automobile, and belongs to the technical field of automobile electric appliances. The low-harmonic-content hub motor comprises astator and a rotor, and is characterized in that the rotor comprises a hub (9) and a magnetic conductive block (1) on the inner surface of the hub; the stator is located in the hub (9) and comprisesa stator fixing block (5) and a plurality of stator cores (4) on the outer ring of the stator fixing block (5); each stator core (4) comprises two stator poles, and an auxiliary winding (3) and an armature winding (8) are wound on the stator poles of the stator cores (4); a permanent magnet (2) is obliquely arranged in the stator core (4); and armature windings (8) are provided with multiple phases, and the multiple phases of armature windings (8) are sequentially wound on the stator poles of different stator cores (4). According to the low-harmonic-content wheel hub motor of the electric automobile, the auxiliary winding is arranged in the stator core, so that the defect that the excitation of a permanent magnet brushless wheel hub motor in the prior art cannot be adjusted is overcome, and the economy is improved.

Description

technical field [0001] An in-wheel motor with low harmonic content for electric vehicles belongs to the technical field of automotive electrical appliances. Background technique [0002] The in-wheel motor integrates both the motor and the transmission device into the wheel hub, which greatly simplifies the transmission mechanism of the electric vehicle, and at the same time makes the design of the electric vehicle flexible and diverse. At the same time, the in-wheel motor has the characteristics of independent driving of a single wheel, so whether it is front-wheel drive, rear-wheel drive or four-wheel drive, it can be implemented relatively easily, and full-time four-wheel drive is very easy to implement on in-wheel motor-driven vehicles. [0003] At present, electric vehicles mainly use permanent magnet brushless in-wheel motors, which have obvious advantages such as simple structure, reliable operation, small size, low loss, and flexible and diverse shapes and sizes of m...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide an auxiliary winding in the stator core, which solves the defect of non-adjustable excitation of the permanent magnet brushless hub motor in the prior art, and improves the economical efficiency. In-wheel motors with low harmonic content for electric vehicles

Images