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Method for producing a stator, and teeth stack for a stator

A technology of tooth stack and stator, applied in the field of tooth stack, can solve the problems of high production force, loss of motor characteristics and/or efficiency, and high cost of stator production, and achieve the effect of rapid assembly

Pending Publication Date: 2019-05-03
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This approach has the disadvantage that the interconnection between the filler tooth laminations 20 may reduce flux linkage by shorting them partially, which may result in losses with respect to motor characteristics and / or efficiency
[0007] All of the aforementioned methods have the disadvantage that the production effort and thus the production costs of the stator are significantly higher

Method used

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  • Method for producing a stator, and teeth stack for a stator
  • Method for producing a stator, and teeth stack for a stator
  • Method for producing a stator, and teeth stack for a stator

Examples

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Embodiment Construction

[0068] Figure 2A to Figure 2F Several steps of the production method of the stator 100 according to the first preferred embodiment are schematically depicted. Such as Figure 2A As shown, a tooth lamination 110 is provided in a first step, wherein the tooth lamination 110 is provided as a laminated tooth lamination.

[0069] The tooth lamination 110 comprises several teeth 111 which are pressed into sheets and arranged such that the tooth lamination 110 forms a circular structure, wherein the teeth 111 are arranged radially with respect to the center 1000 of the circular structure. direction. The teeth 111 each comprise interlocking or interlockable elements 112 for attaching several tooth laminations 110 together one above the other.

[0070] Furthermore, each tooth 111 comprises a root end 113 and an inner end 115, wherein the root end 113 is arranged in a radially outward direction, ie away from the center 1000, and wherein the inner end 115 is arranged radially inwardl...

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Abstract

The invention relates to a method for producing a stator and a teeth stack for a stator. A method of producing a stator of a synchronous permanent magnet machine includes: a step of providing a toothstack comprising a plurality of teeth, wherein the teeth are arranged in a radial direction, forming a tooth stack as a circular structure, each of the teeth comprising a root end in a radially outward direction of the tooth stack and an inner end in a radially inward direction of the tooth stack, each two adjacent teeth forming a gap therebetween, the inner ends of the adjacent teeth being interconnected by means of a bridge; and a step of providing at least one coil in at least one gap between adjacent teeth of the tooth stack. The method further comprises: a step of arranging the tooth stack within the yoke stack such that the root ends of the teeth are in mechanical contact with the yoke stack; and a step of removing at least a portion of the bridge portion at the inner end of the tooth such that the tooth stack has a predetermined diameter in the radially inward direction. The invention also relates to a stator, a tooth lamination and a synchronous permanent magnet motor with thestator.

Description

technical field [0001] The invention relates to a teeth stack for a stator of a synchronous permanent magnet machine and a method for producing a stator of a synchronous permanent magnet machine. Accordingly, the present invention relates in particular to electrical machines and in particular to synchronous permanent magnet machines. Background technique [0002] Stators for synchronous permanent magnet machines can be produced in different ways. [0003] refer to Figure 1A Explain one possible approach. Figure 1A A portion of a conventional stator 10 is schematically shown, comprising a number of pre-wound coils 12 made of packed lamination segments 14 (each typically made of multiple veneer composition) composition. The coils are formed by winding copper wire onto insulating segment cores 16 , with insulating paper and / or plastic coil carriers 18 inserted between the copper wire windings and the segment cores 16 . The segment core 16 may be made of steel or another fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02H02K1/14
CPCH02K1/148H02K15/022
Inventor R.利斯雅克G.切尔尼韦克T.耶伦克
Owner ROBERT BOSCH GMBH
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