Electric vehicle range extender grid rotor motor

Abstract

The invention relates to a grid-shaped rotor motor for a range extender of an electric automobile and belongs to the technical field of electric automobiles. The grid-shaped rotor motor is composed of a crankshaft, a shell, a stator iron core, an exciting winding and an armature winding, wherein ten rectangular holes are uniformly formed in the circumferential surface of the shell, and a grid-shaped iron core capable of conducting magnetism is arranged between any two rectangular holes; the stator iron core fixedly arranged on a range extender shell is composed of 12 substator iron cores uniformly distributed in a left inverted 'n' shape, stator poles projecting along the radial direction are arranged at the two sides of each substator iron core, and the side surface of each stator pole is in a sectional shape; the distance between two stator poles on one substator iron core is less than the axial length of each rectangular hole in the shell; the exciting winding is formed by winding yokes of all the 12 substator iron cores. The grid-shaped rotor motor provided by the invention can fully play the advantage of high power density of a disc type motor, and the exciting winding is short in path and small in copper loss.

Description

technical field [0001] The invention relates to a grid-shaped rotor motor for a range extender of an electric vehicle, belonging to the technical field of electric vehicles. Background technique [0002] At present, electric vehicles are generally driven by pure electric power without a range extender, and a large-capacity power battery is required, but it is inconvenient to rely on an external power supply for charging, the cruising range is short, and the cost of setting up charging piles along the road is high. Range-extended electric vehicles appear in the field of pure electric vehicles as a transitional technology. Compared with traditional electric vehicles, extended-range electric vehicles add a fuel engine, which effectively improves the problem of short cruising range of pure electric vehicles. After the electric vehicle travels for a certain mileage, when the battery power drops to the set value, the electric vehicle can be driven in Zeng mode through the generat...

AI Technical Summary

Problems solved by technology

However, at present, the traditional range extender generator generally adopts the inner rotor structure, and the rotor and the stator are mainly arranged in radial relative positions. The stator of the generator surrounds the rotor, resulting in a larger overall volume and weight of the generator. powerful

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