Stator and kit of parts

By designing a motor structure with a stator and torsion conductor with a cylindrical ring shape, the problem of insufficient cooling performance of existing motors is solved, and higher cooling efficiency and higher performance efficiency are achieved.

CN119731909APending Publication Date: 2025-03-28SCHAEFFLER TECHNOLOGIES AG & CO KG
2 Cites 0 Cited by

Patent Information

Application Number
CN202380060457.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-08-29
Filing Date
2023-08-03
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

While increasing the power density, existing motors have insufficient cooling performance and are difficult to effectively dissipate heat, resulting in thermal overload.

Method used

A stator with a cylindrical ring shape is designed with a plurality of stator teeth and a stator groove, the conductor portion extends parallel to the axial range and forms a cross-section in the stator groove that deviates from the circular shape, the cooling fluid can flow through the stator groove, the conductor portion forms a winding head at the end side of the stator, and the adjacent conductor portions in the radial direction are twisted along its longitudinal range.

Benefits of technology

The uniform flow and cooling performance of the conductor part are achieved, the formation of "stagnant water areas" is avoided, fine wear is reduced, and the production process is simple, which is suitable for the improvement of existing stator.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to a stator (1) for an electric machine (2), in particular for an electric machine in a drive train (3) of a motor vehicle (4), in which: the stator (1) has a cylindrical annular configuration and has a plurality of stator teeth (5) which each define a stator slot (6) with two slot side walls (15) and a slot base (16) between adjacent stator teeth (5) in the circumferential direction, the stator slots extend in the radial direction and extend through the stator (1) in the axial direction, and in which stator slots an energizable winding (7) comprising a plurality of conductors (8) is inserted; the conductor (8) has two conductor parts (9a, 9b), which extend parallel in the axial direction, are arranged in the stator slots (6) and have a cross-section with a contour deviating from a circular shape, and are drawn from the stator (1) in each case with two free conductor ends (10) at the end faces (14) of the stator (1) and form winding heads (11); and at least one of the two radially adjacent conductor portions (9a, 9b) of the stator slots (6) is twisted along the longitudinal extent thereof.
Need to check novelty before this filing date? Find Prior Art