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Coil bobbin with barrier element

A coil carrier and barrier technology, applied in the field of coil carriers, can solve problems such as machine failure and coil short circuit

Active Publication Date: 2014-04-02
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such damage can lead to short circuits in coils or failure of machinery in the process or in the field

Method used

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  • Coil bobbin with barrier element
  • Coil bobbin with barrier element
  • Coil bobbin with barrier element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Figure 1A A coil carrier 100 is shown, onto which a coil 101 is wound. Both the wire inlet section 102 and the wire outlet section 106 of the wire wrap are connected to corresponding busbars or ground connections by means of ultrasonic welding.

[0035] Figure 1B A perspective view of the wire feed region of the coil carrier 100 is shown. Located in the coil carrier flange 402 is a guide channel 107 into which the wire feed section 102 of the winding enters. In region 105 , the incoming wire winding section 102 intersects the lower wire section 104 of the outer winding which is closest to the coil carrier flange 402 .

[0036] During the implementation of the ultrasonic welding method, the wire sections 102 , 104 rub against each other in the region 105 , so that the insulating lacquer can be partially worn away.

[0037] Figure 1C The wire feed region of the coil carrier 100 during the winding process is shown. as in Figure 1C As shown in , the wire section 1...

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PUM

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Abstract

The invention relates to a coil bobbin for supporting the coil winding of a motor. The coil bobbin is provided with a body for supporting the coil winding and a barrier element which is mounted on the body. The barrier element is designed for bending in the winding process, and therefore two mutually intersected metal wire components are configured separately, thereby reducing the risk of insulating paint abrasion in ultrasonic welding.

Description

technical field [0001] The invention relates to a coil carrier for carrying a winding of a coil of an electric machine, an electric machine with a coil wound on the coil carrier, a vehicle with an electric machine and a method for winding the coil. Background technique [0002] Electronically commutated electric motors usually have a stator with stator teeth. In the case of internal rotor machines, the stator is usually of circular design and is constructed in one piece or assembled from individual segments. In the latter case, the individual segments usually have a stator tooth structure which is first wound and the wound individual segments are subsequently assembled to form a circular stator. It is customary to wind the individual segments of the stator tooth structure with lacquer-insulated copper wire in order to apply the stator coils to the stator teeth. [0003] In order to avoid electrical short circuits between the winding wires and the iron sheets of the respect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/52H02K15/04
CPCH02K3/522H02K2213/03H02K15/045H02K15/04H02K3/52Y02T10/641B60L3/0061B60L3/0069B60L3/04B60L2220/50Y02T10/64
Inventor M.尤雷特科
Owner ROBERT BOSCH GMBH