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Forming method of winding in electrical machine

A winding and acting technology, applied in the field of winding, can solve the problems of affecting the connection, mechanical damage of motor components, undesired coil wires, etc., and achieve the effect of reducing the risk of damage to the insulation layer, high filling factor, and reducing mechanical load.

Inactive Publication Date: 2016-04-20
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Higher pressing forces can lead to undesired stretching of the coil conductors, usually made of copper wire, which can, for example, affect the connection to the end-side contact lugs
High extrusion forces can also lead to mechanical damage to motor components

Method used

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  • Forming method of winding in electrical machine
  • Forming method of winding in electrical machine
  • Forming method of winding in electrical machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 An electric machine 1 is shown in cutaway form, which is embodied as an inner rotor and comprises an outer stator 2 and an inner rotor 3 . The stator 2 has a stator ring 4 which is inserted into a housing sleeve or a carrier sleeve 6 and is firmly connected to the carrier sleeve 6 . The stator ring 4 is assembled in the circumferential direction from individual segments 5 , which each comprise an outer, arc-shaped carrier section 7 and a winding tooth or winding carrier 8 , said winding teeth or winding The carrier extends radially inwards in the center of the carrier section and the winding 9 made of coil wire is wound on the winding teeth or the winding carrier. On the radially inner side, each winding carrier 8 has a widened tooth crest 10 which forms the delimitation and support for the winding 9 . The inner rotor 3 adjoins the tooth tip 10 at a small radial distance.

[0028] The electric machine is constructed, for example, as a permanently excited ele...

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PUM

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Abstract

The invention relates to a method for forming a winding on a winding support in an electric machine and preparing the winding from a coil wire. An extrusion mechanism in the method comprises at least one lateral-pressing winding of a forming roller. The forming roller and the winding relatively move to each other. In the relative movement, the forming rolls outside the winding.

Description

technical field [0001] The invention relates to a method for deforming a winding made of coil wire on a winding carrier in an electrical machine. Background technique [0002] During the manufacture of the electric machine, the coil conductors are wound on a winding carrier, which is, for example, part of a toothed segment, wherein a plurality of toothed segments can form a carrier ring in the circumferential direction, on which the winding carrier is extending radially inward or outward. The winding carrier and the windings arranged on the winding carrier can be part of the stator or the rotor of the electric machine. To generate an alternating electromagnetic field, the different windings on the winding carrier are energized according to a defined pattern. [0003] For normal operation it is important that the windings on adjacent winding carriers are separated from one another and in particular not in contact with one another. At the same time, it is sought to keep the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/00
CPCH02K15/0031
Inventor L.莱茨J.米勒T.埃拉尔
Owner ROBERT BOSCH GMBH