Outer rotorof hub motor of electric vehicle

Abstract

The invention discloses an outer rotor of a hub motor of an electric vehicle, and belongs to the technical field of motor equipment. The rotor comprises a rim (1), a magnetic conductive iron core (2)and a permanent magnet (3);the rim (1) comprises a first annular body (101) and a fixing block (104). The spacing width of the part, close to thefirst annular body (101), of the fixed block (104) is lessthan the width of the maximum spacing of the part, far away from the first annular body (101), of the fixed block (104); a groove body (201) is formed in the magnetic conductive iron core (2). According to the invention,the magnetic conductive iron core (2) isbetter in fixing effect, the magnetic leakage phenomenon of magnetic steel can be reduced, the efficiency of the motor can be improved, the quality of the hub motor of the electric vehicle can be improved, and the endurance mileage of the electric vehicle can be increased.

Description

technical field [0001] The invention belongs to the technical field of motor equipment, and in particular relates to an outer rotor of an electric wheel hub motor used for driving electric vehicles and the like. Background technique [0002] Due to its advantages of economy, convenience, and environmental protection, electric bicycles have become the mainstream of personal transportation in the city. They have gradually replaced traditional bicycles and motorcycles and entered the market in large numbers, and the number of electric bicycles in the market has gradually increased. However, the key factor restricting the development of electric bicycles at present is that the power performance and continuous driving ability of electric bicycles need to be further improved. The fundamental reason is that the magnetic flux leakage of the magnets in the motor rotor is relatively serious. Therefore, how to improve the efficiency of the motor and reduce the energy consumption of the...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the technical problem that the fixation ability between the magnetic conducting core and the annular body is not strong enough in the prior art, and the magnetic conducting core is prone to fall off, and to provide a method that can make the connection between the magnetic conducting core and the annular body one An electric wheel hub motor outer rotor that can be effectively fixed to prevent the magnetic core from falling off, and can effectively reduce the magnetic flux leakage of the magnet and can effectively improve the efficiency of electric energy use

Images