Flat wire motor, power assembly and vehicle

Abstract

A flat wire motor, a power assembly and a vehicle are disclosed. The flat wire motor comprises a stator and a rotor, the stator comprises a stator winding and a stator core, the stator winding comprises a first phase winding, a second phase winding and a third phase winding, each phase winding comprises at least one parallel branch, the parallel branches are uniformly and symmetrically arranged, each parallel branch comprises at least two parallel branches which are uniformly and symmetrically arranged, the inner wall of the stator core is provided with a plurality of grooves, and the plurality of grooves are axially arranged around the central axis of the stator core and axially extend along the central axis. In this way, the parallel branches which are evenly and symmetrically distributed are combined with the parallel branches which are evenly and symmetrically distributed on each parallel branch, potential balance of the three-phase winding is well achieved, generation of motor circulation is restrained or eliminated, the phenomenon of temperature rise of the motor is well relieved, and therefore the working efficiency of the motor is improved.

Description

technical field [0001] The present application relates to the technical field of motors, in particular to a flat wire motor, a power assembly and a vehicle. Background technique [0002] In recent years, flat wire motors have benefited from their higher copper fullness ratio, better heat dissipation performance and higher power density, which contribute to the lightweight of new energy electric vehicles and can improve the space utilization of new energy electric vehicles and mileage, and are widely used in new energy electric vehicles and other transportation vehicles. [0003] In the prior art, the flat wire motor mainly adopts wave winding or stacked winding structure, and the AC loss of the motor can be effectively reduced by designing the conductor of the above winding structure into multiple layers. However, when the conductors in the above-mentioned winding structure are designed to be multi-layered, it is often difficult to achieve a better potential balance in the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a flat wire motor, power assembly and vehicle, aiming to solve the problem that the three-phase branch circuit of the winding structure is difficult when the conductor in the winding structure of the flat wire motor in the prior art is designed to be multi-layered To achieve a better ground potential balance, it is easy to cause circulation and aggravate the technical problem of flat wire motor temperature rise

Images