A Stator For A Drive Motor In A New Energy Vehicle

The present utility model discloses a stator for a drive motor used in new energy vehicles, comprising a stator shell. The stator shell includes a housing and cooling fins. A plurality of stator bases are mounted on the inner surface of the housing and fixedly welded thereto. A plurality of connecting holes corresponding to the stator bases are formed on the outer surface of the housing. The cooling fins are uniformly arranged on the connecting holes and are fixedly mounted on the outer surface of the housing.

This utility model facilitates auxiliary support for the motor shaft by installing positioning bushings on the housing. These bushings can be individually removed after wear for convenient maintenance and replacement. Additionally, stator mounts on the housing’s inner surface enable precise positioning and installation of the motor stator. The communication holes on the housing enhance heat dissipation for the motor stator.

Technical Field

This utility model relates to the field of drive motor stator technology, specifically a drive motor stator for new energy vehicles.

Background Technology

Currently, various motor structures are widely used in the operation of new energy vehicles. Most drive motors consist of a stator, rotor, front flange, and rear flange. In general, the stator acts as the stationary part of an electric motor or generator and plays a key role in devices such as generators and starters. It typically includes three major components: the stator core, stator windings, and stator housing.

However, the inventors observed several issues in the related technology. Existing drive motor stator housings usually adopt an integral molding structure. As a result, wear often develops between the motor shaft and the housing after long-term operation, and technicians find it difficult to replace the worn components. Moreover, the stator housings of current drive motors rely solely on heat conduction through the housing for external thermal exchange. Consequently, this structure provides poor heat dissipation performance and limits the overall cooling efficiency of the motor stator.

Stator for new energy vehicle drive motor with cooling fins and reinforced housing structure

Content

Overall Structure of the Stator

The utility model provides a stator for the drive motor of a new energy vehicle. The stator uses a shell that includes a shell body and several heat-dissipation fins. The designer welds multiple stator seats directly onto the inner surface of the shell body. The outer surface of the shell body includes communication holes that align with the stator seats. Cooling fins surround these holes, and the operator fixes each fin onto the shell body.

A motor stator sits at the center of the housing. A positioning sleeve attaches to the front end of the shell, and technicians can remove this sleeve quickly whenever replacement is necessary.

Motor Stator Structure

The motor stator includes a stator frame and stator windings. The windings wrap tightly around the stator frame and keep a uniform distribution to maintain stable operation.

The stator frame contains a hub, an iron core, and arc-shaped magnetic plates. The iron core surrounds the hub at equal intervals. The magnetic plates mount onto the top of the iron core to enhance the magnetic field performance.

Positioning Sleeve Design

The positioning sleeve uses a central sleeve and a reinforcement frame. The reinforcement frame sits on both sides of the central sleeve, and the structure remains firmly connected.

The reinforcement frame includes an outer plate and several inclined rods. The rods line up symmetrically on one side of the outer plate, and workers weld the rods to increase the frame’s strength.

Shell and Mounting Structure

The inner surface of the housing includes an embedded groove for mounting the outer plate of the reinforcement frame. Symmetrical connection holes are formed inside the groove. The outer plate has corresponding mating holes to ensure accurate alignment and secure fastening.

Enhanced drive motor stator for new energy vehicles with optimized cooling channels and reinforced structural design

Heat Dissipation Structure

The heat dissipation fins are composed of triangular plates with integrally formed extension plates at their ends. This integrated structural design improves heat conduction and increases the overall cooling area of the stator.

Beneficial Effects

Compared with existing technologies, this utility model offers several advantages:

• The positioning sleeve provides auxiliary support for the motor shaft, which improves overall mechanical stability.

• Technicians can easily remove and replace the positioning sleeve if it becomes damaged, reducing maintenance time.

• The integrated heat-dissipation structure improves airflow and thermal performance.

• The reinforced stator assembly increases durability and supports high-efficiency operation in new energy vehicle drive motors.