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Two-component isolation of bl stators

A technology for insulating parts and stators, applied in the direction of winding insulation materials, electric components, winding insulation shape/style/structure, etc., can solve problems such as differential heat export, and achieve high mechanical strength and good thermal conductivity.

Inactive Publication Date: 2015-10-21
HILTI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, more or less exclusively thermoplastic materials with optimized thermal conductivity have limitations with regard to the flow path length and the dependent (or required) minimum wall thickness
In order to overcome these limitations, larger wall thicknesses are often introduced in the winding support, which in turn leads to poor heat conduction from the stator coils via the thermoplastic to the stator component

Method used

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  • Two-component isolation of bl stators
  • Two-component isolation of bl stators
  • Two-component isolation of bl stators

Examples

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Embodiment Construction

[0045] figure 1A stator 1 according to the invention for an electrodynamic machine is shown. An electrically powered machine may be, for example, an electric motor. The stator 1 includes in particular a stator component 10 and a winding support device 50 . The stator has a first end side 2 and a second end side 4 .

[0046] The stator subassembly 10 consists of a plurality of individual lamination rings 12 fixedly connected to one another, whereby the stator 1 and thus the stator subassembly 10 have an essentially cylindrical shape. Furthermore, the stator component 10 has an outer side 13 , an inner side 14 and a first end side 16 and a second end side 17 .

[0047] Each lamination ring 12 has a hexagonal shape, wherein the corresponding corners 18 on the inside 19a and outside 19b of the lamination ring 12 are rounded.

[0048] The lamination ring 12 also contains six web elements 20 which are arranged evenly distributed on the inner side 19 a of the lamination ring 12 a...

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PUM

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Abstract

A stator for an electrodynamic machine, particularly an electric motor, including a stator core with a first end face and a second end face, wherein a heat-conductive segment isolation is provided on the inside of the stator core and a winding support device is provided on at least one of the end faces of the stator core.

Description

technical field [0001] The invention relates to a stator for an electrodynamic machine, in particular an electric motor. The stator here comprises a stator component with a first end side and a second end side. Background technique [0002] A stator or frame, commonly used in electric motors, additionally includes a stator assembly. The stator assembly is formed for this purpose from individual lamination rings. For this purpose the stator assembly has a number of stator poles (or webs) which extend radially into the interior of the stator assembly. Gaps in the form of pole slots or winding slots are provided here between the individual stator poles. The stator poles thus serve to receive the stator coils. [0003] Usually the inner surface of the stator component, the stator poles (webs) and the pole slots are overmolded or sheathed with plastic. Alternatively the ground slots can also be insulated with paper. The plastic can be, for example, a polymer, such as a ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/52H02K3/38H02K9/22H02K3/34H02K1/20H02K1/14
CPCH02K3/522H02K1/146H02K1/20H02K3/345H02K3/38H02K9/22H02K9/223H02K3/30
Inventor P·胡弗纳格尔T·舍菲尔
Owner HILTI AG