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Stator plate group, motor and vehicle

A stator plate and stator winding technology, applied in the field of vehicles, can solve problems such as deformation and torque fluctuations

Pending Publication Date: 2022-03-04
VALEO EAUTOMOTIVE GERMANY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Welding deformations lead to undesired torque fluctuations or undesired locking torques due to deviations from cylindricality directly affecting the air gap width between the stator and rotor and thus affecting the magnetic forces in motor operation

Method used

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  • Stator plate group, motor and vehicle
  • Stator plate group, motor and vehicle
  • Stator plate group, motor and vehicle

Examples

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Embodiment Construction

[0030] First, it should be noted that the same components in different embodiments bear the same reference symbols or the same component names, but in some cases have different reference numerals. The disclosure of a component included in the specification may be transferred to another component having the same reference symbol or the same component name accordingly. Furthermore, positional data selected in the description, such as "top", "bottom", "rear", "front", "side", etc., relate to the directly described and depicted figure and should be changed accordingly moved to a new location.

[0031] figure 1 A half-sectional view of a schematically depicted electric machine 1 is shown. The electric machine 1 comprises a shaft 2 on which a rotor 3 is mounted, wherein the shaft 2 is mounted so as to be rotatable about an axis of rotation A relative to a stator 5 via (roller) bearings 4a, 4b. In this example, the stator 5 has a plurality of stator plates 6 forming a stator plate...

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PUM

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Abstract

A stator plate set (7, 7a, 7b) for a stator (5) of an electric machine (1) is described, comprising a plurality of stator plates (6) arranged one on top of the other and having stator slots (13) open towards the inside for receiving stator windings (8), in which the stator plates (6) are welded together by a plurality of n outer welds (14) or weld parts uniformly distributed on the periphery of the stator plate set (7, 7a, 7b). The welds (14) or weld portions each extend from a first end face (B) of the stator plate pack (7) to a second end face (C) of the stator plate pack (7) and each extend at an angle (alpha) with respect to an axis of rotation (A) of the electric machine (1). The angle (alpha) is in the range of alpha > = 360 DEG / n-10%. Furthermore, an electric machine (1) having such a stator plate pack (7, 7a, 7b) or a stator (4) and a vehicle (15) having such an electric machine (1) are described.

Description

technical field [0001] The invention relates to a stator plate set for a motor stator. The stator plate set comprises a plurality of stator plates stacked on top of each other and has a stator slot opening toward the inside, and the stator slot is used for accommodating a stator winding. Furthermore, an electric machine with such a stator plate set or such a stator is described, as well as a vehicle with such an electric machine. Background technique [0002] In electric machines, it is known to weld together stator plates which are placed on top of each other in a stator plate pack in order to impart stability to the stator plate pack. As a rule, the weld seam here runs parallel to the stator slots of the stator plate pack. In principle, welding can lead to deformation of the stator plate pack. Specifically, sometimes the central bore of the stator plate pack deviates from cylindrical shape, and deviates so much that the cross-section has a flower-like pattern. If the we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/28H02K3/12H02K1/16H02K5/173H02K7/116
CPCH02K3/28H02K3/12H02K1/165H02K5/1732H02K7/116H02K2213/03H02K1/12H02K2201/06H02K15/024H02K1/16H02K1/22H02K7/14
Inventor A.博姆M.米勒
Owner VALEO EAUTOMOTIVE GERMANY GMBH