Split stator for electric motor and method for producing the same

一种分瓣定子、制造方法的技术，应用在电动组件、机电装置、电气元件等方向，能够解决寿命缩短、绝缘性能降低、妨碍铁心散热等问题，达到防止温度上升、提高热传导性、确保绝缘性的效果

Inactive Publication Date: 2010-03-17
SUMITOMO ELECTRIC IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this resin insulator has high electrical insulation but low thermal conductivity
As a result, since heat dissipation to the core is hindered, the internal temperature of the winding body tends to rise.
The increase in the internal temperature of the winding body has a bad influence on the insulating coating of the winding, which has the following problems, that is, the insulation performance is reduced, and the output of the motor is reduced or the life of the motor is shortened.

Method used

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  • Split stator for electric motor and method for producing the same
  • Split stator for electric motor and method for producing the same
  • Split stator for electric motor and method for producing the same

Examples

Experimental program
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Embodiment Construction

[0043] Such as figure 1 As shown, in this embodiment, the present invention is applied to each split stator 2 of the concentrated winding stator 1 for a motor constituted by combining a plurality of split stators provided with winding bodies into a ring shape.

[0044] The stator 1 is formed by combining a plurality of split stators 2 into a ring shape, and then fixing and assembling the stator 1 so as to surround it from the outside using a ring member (not shown) or the like. That is, the stator 1 is a stator for an electric motor having a plurality of parts connected to each other in an annular shape, each of which has a split stator 2 . A rotor (not shown) provided with permanent magnets is arranged inside the stator 1 to form a motor. In addition, in figure 1 In FIG. 2 , a cross section perpendicular to the axis of the annular shape of the stator 1 is shown so that the overall structure of the stator 1 composed of the split stator 2 can be understood.

[0045] Figure...

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PUM

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Abstract

A split stator for an electric motor includes a core (3) having tooth sections, winding bodies (7) formed around the tooth sections, insulation spacer members (5A, 5B) arranged between the surface ofa tooth section and an inner peripheral section of a corresponding winding body (7) and holding that inner peripheral section with a gap (10) separating it from the surface of the tooth section, and ahighly heat conductive resin filler material placed in the gap (10). The resin filler material is adapted to be able to radiate heat from the inner peripheral sections of the winding bodies (7) to the core (3).

Description

technical field [0001] The invention relates to a split stator for a motor and a stator for a motor using the split stator. In particular, it relates to a split stator for an electric motor and a stator for an electric motor capable of efficiently dissipating heat generated in a winding body of an electric motor to an iron core. Background technique [0002] In a hybrid vehicle or an electric vehicle, an electric motor is used to drive the vehicle. Of course, this driving motor is required to have high output and high efficiency, and furthermore, it is required to be smaller and lighter. Therefore, weight reduction and miniaturization in units of grams and millimeters are required without lowering the output. [0003] A winding body (coil) of a motor is formed by winding a wire around an iron core of a stator. In order to achieve further miniaturization under high output conditions, it is required to increase the space factor of winding bodies such as stators to the limit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/18H02K3/34
CPCH02K1/148H02K3/325H02K9/22Y10T29/49009H02K9/223
Inventor 饭塚慎一木村康三草别和嗣小松裕立松和高
Owner SUMITOMO ELECTRIC IND LTD
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