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Rotor for rotary electric machine

A technology of rotating electrical machines and rotors, which is applied in the field of rotors for rotating electrical machines to achieve the effect of realizing width

Active Publication Date: 2019-08-16
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Patent Document 1 does not describe a technique for suppressing the width of the offset bridge portion to be small.

Method used

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  • Rotor for rotary electric machine
  • Rotor for rotary electric machine
  • Rotor for rotary electric machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Embodiments of a rotor for a rotating electric machine will be described with reference to the drawings. In addition, in the following description, the axis A (refer to figure 1 ) is defined as a benchmark. The axis A is an imaginary axis, and the rotor 2 rotates around the axis A. Additionally, if figure 2 As shown, one side in the circumferential direction C is referred to as "the first side in the circumferential direction C1", and the other side in the circumferential direction C (the side opposite to the first side in the circumferential direction C1) is referred to as "the second side in the circumferential direction C2". ". In this specification, terms such as dimensions, arrangement directions, arrangement positions, etc. are used as concepts including states including differences due to errors (errors to a degree acceptable in manufacturing).

[0030] Such as figure 1 As shown, the rotor 2 is a rotor for a rotating electrical machine, and is used for the...

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PUM

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Abstract

The invention provides a rotor for a rotary electric machine. A rotor core (15) is provided with multiple bridge parts (41) formed between two hole parts (20) adjoining in a circumferential direction(C), wherein the multiple bridge parts (41) include therein offset bridge parts (51) at positions shifted in the circumferential direction (C) with respect to a magnetic pole center line (90). In a cross-sectional view orthogonal to the axial direction, extending directions of the offset bridge parts (51) incline with respect to the magnetic pole center line (90) so as to approach the magnetic pole center line (90) as the offset bridge parts extend toward the outside in the radial direction (R).

Description

technical field [0001] The present invention relates to a rotor for a rotating electrical machine including a rotor core and permanent magnets disposed on the rotor core. Background technique [0002] As an example of a rotor for a rotating electric machine, the description in JP 2012-165482 A (Patent Document 1) is known. A rotor (10) described in Patent Document 1 is provided with a pair of permanent magnets (26) and magnetic flux suppression holes (28) in each of a plurality of magnetic poles (24). In the magnet insertion hole (32) for inserting the permanent magnet (26), a first hole (28a) is formed so as to communicate with the magnet insertion hole (32). figure 2 and image 3 In the shown structure, the magnetic flux suppression hole (28) is composed of two first holes (28a, 28a) and one second hole (28b). Furthermore, a bridge portion (36) is formed between the first hole (28a) and the second hole (28b) on one side and between the first hole (28a) and the second ho...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K1/22
CPCH02K1/2766
Inventor 斋藤尚登池本正幸宫路刚
Owner AISIN AW CO LTD
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