Stator with insulated bar windings for electric motors

An electrical insulation and stator technology, applied in the shape/pattern/structure of winding insulation, the shape/pattern/structure of winding conductors, electric components, etc., can solve the problem of cost of insulating paper, and ensure deformability and heat conduction. Effect

Active Publication Date: 2020-10-09
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This manufacturing process known from the prior art is time consuming because of the high precision required to arrange the wire rods with the insulating paper
Furthermore, the impregnation of the insulating paper and subsequent curing of the casting compound takes several hours

Method used

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  • Stator with insulated bar windings for electric motors
  • Stator with insulated bar windings for electric motors
  • Stator with insulated bar windings for electric motors

Examples

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Embodiment Construction

[0032] The exemplary embodiments explained below are preferred embodiments of the present invention. In an exemplary embodiment, the described components of an embodiment each represent a separate feature of the invention, which features are to be considered independently of each other and each also develop the invention independently of each other, and thus may also be used alone or in addition to all Combinations other than those shown are considered components of the present invention. Furthermore, other features of the invention which have been described may also be added to the described embodiments.

[0033] In the figures, functionally identical elements are correspondingly provided with the same reference symbols.

[0034] figure 1 A stator 1 for an electric machine is shown. The stator 1 may be provided eg for a starter generator of a motor vehicle. The stator 1 has a laminated core 2 which can be formed in a manner known per se from soft-magnetic metal sheets (co...

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PUM

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Abstract

The invention relates to a stator (1) for an electric machine (34), comprising a laminated core (2), which has grooves (4), which extend in the axial direction (3) of the stator (1), and comprising electrically conductive bars (21), which are electrical windings of the stator (1), at least one of said bars being arranged in each groove (4), wherein each bar (21) is electrically insulated from the laminated core by means of a respective electrical insulating element (22). The production of the stator (1) should be efficient. According to the invention, each electrical insulating element (22) is designed as a tube element (23), which is formed of a thermoplastic plastic and surrounds the bar (21).

Description

technical field [0001] The invention relates to a stator for an electric machine, an electric machine with a stator according to the invention, a motor vehicle, and a method for manufacturing the stator. The stator has a laminated core with grooves, in each groove at least one electrically conductive bar is arranged, wherein all the bars constitute the electrical windings of the stator. Each bar is insulated from the laminated core by means of an electrical insulating element. Background technique [0002] In the case of certain types of stators, it is provided in the prior art to have each electrically conductive bar coated with an electrically insulating surface coating. Subsequently, the bars are installed in the grooves in the laminated core and secured with insulating paper. Finally, the insulating paper is impregnated with a casting compound, especially an impregnating resin. As a result, the bar is secured in the groove and insulated from the laminated core. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/12H02K3/30H02K3/34
CPCH02K3/12H02K3/30H02K3/34H02K15/12
Inventor B·冯·毛奇N·皮塔维斯A·瓦西列夫
Owner VTESCO TECH GMBH
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