Laminated core for rotary electric machine

A technology of rotating electrical machines and stacking cores, which is applied in the directions of electromechanical devices, electrical components, and electric components, etc., can solve the problems of gaps in the stacking blocks, weakening the rotational balance of the stacking cores, and uneven thickness of the stacking cores.

Inactive Publication Date: 2016-12-07
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, even if the pins don't hit each other, there will be gaps between the laminated blocks due to the pins
If there is a gap due to the pin, the thickness of the laminated core in the direction of the axis of rotation will tend to be uneven in the circumferential direction, which may weaken the rotational balance of the laminated core

Method used

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  • Laminated core for rotary electric machine
  • Laminated core for rotary electric machine
  • Laminated core for rotary electric machine

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] Hereinafter, an exemplary embodiment of a laminated core for a rotating electrical machine according to the present invention will be described in detail with reference to the accompanying drawings.

[0025] [First Exemplary Embodiment]

[0026] figure 1 The rotor 1 shown in is used for a rotating electrical machine such as a motor or generator of a hybrid vehicle. In addition to hybrid vehicles, the rotor 1 can also be used in electric vehicles or fuel cell vehicles.

[0027] The rotor 1 includes a laminated core 3 in which thin steel plates 2 formed of insulation-coated steel plates punched into a disk shape are laminated together in the direction in which the rotation axis L extends, and magnets 5 . 5 is provided in the magnet insertion hole 4 formed by punching in the disc-shaped steel plate 2. A shaft insertion hole 8 for inserting a shaft 7 is formed at the center of each steel plate 2 . A key portion 2 a serving as a shaft connection portion is formed on the ...

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PUM

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Abstract

A laminated core for a rotary electric machine includes a disc-shaped first laminated block, a disc-shaped second laminated block and an end steel sheet. The first and second laminated block are formed by a plurality of main steel sheets that have a protruding dowel crimping portion and that are laminated together. The second laminated block being front / back reversed with respect to the first laminated block around a reference line of the first laminated block. The end steel sheet has a first dowel insertion hole formed in a position corresponding to the dowel crimping portion of the first laminated block, and a second dowel insertion hole formed in a position symmetrical to the first dowel insertion hole with respect to the reference line of the first laminated block. The end steel sheet is arranged in a position between opposing surfaces of the first laminated block and the second laminated block.

Description

technical field [0001] The present invention relates to a laminated core formed of steel plates laminated together for use in a rotor of a rotating electrical machine such as an electric motor or a generator. Background technique [0002] Japanese Patent Application Publication No. 2010-141989 (JP 2010-141989 A) is a related art. In the steel plate described in JP 2010-141989 A, a plurality of magnet insertion holes are formed by punching at equidistant intervals in the circumferential direction. These steel plates are laminated together in the direction in which the rotation axis extends to form a laminated core. Magnets are then loaded into the magnet insertion holes of the laminated core, thereby forming a rotor. [0003] It is possible by forming a plurality of blocks each of which is formed of a plurality of steel plates laminated together by pin crimping (hereinafter, these blocks will be referred to as “laminated blocks”)— - stacked together to form the laminated c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
CPCH02K1/2773H02K1/22H02K1/2766H02K2201/09H02K2213/12
Inventor 雪吹晋吾
Owner TOYOTA JIDOSHA KK
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