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Rotor of rotary motor

A technology of rotating electrical machines and rotors, applied in the field of rotors of rotating electrical machines, can solve problems such as noise, vibration, and rotor core weight balance damage, and achieve the effects of reducing vibration and noise, uniform size, and uniform weight balance

Active Publication Date: 2013-09-25
TOSHIBA BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there are problems such as loss of weight balance of the rotor core, generation of noise, vibration during rotation, etc.

Method used

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  • Rotor of rotary motor
  • Rotor of rotary motor
  • Rotor of rotary motor

Examples

Experimental program
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Embodiment Construction

[0024] Hereinafter, rotors of rotating electrical machines according to embodiments of the present invention will be described with reference to the drawings. In the plurality of embodiments, the same reference numerals are used for substantially the same components, and description thereof will be omitted.

[0025] (first embodiment)

[0026] The following is based on Figure 1 ~ Figure 3 The rotor of the rotating electric machine according to the first embodiment of the present invention will be described. Rotor 1 of a rotating electrical machine such as figure 1 As shown, it has a rotor core 2, a rotating shaft 3, and a key 4 (refer to figure 2 ). The rotor core 2 is formed by laminating a plurality of core members 5 in the plate thickness direction. The rotor core 2 has a plurality of magnetic slots 6 at equal intervals along the entire circumference on the outer peripheral portion. A flat permanent magnet 61 serving as a magnetic pole is inserted into each magnetic...

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PUM

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Abstract

A rotor of a rotary motor of the invention has a rotor iron core formed by laminating a plurality of iron core components in the plate thickness direction, wherein the rotor iron core is divided into n blocks with substantially equal laminated piece number, n is an integer more than 3, and the blocks is sequentially laminated along circumferential direction and is staggered with each other.

Description

technical field [0001] This invention relates to rotors for rotating electric machines. Background technique [0002] A rotor of a rotating electrical machine generally has a rotor core in which core members are laminated. The core material of the rotor core is formed by punching out a strip-shaped electrical steel sheet by, for example, punching. However, since electrical steel sheets are produced by rolling, variations may occur in sheet thickness. When the thickness of the electrical steel sheet varies, the thickness of the formed core material also varies. As a result, variations occur in the size and weight of the rotor core. Therefore, JP-U-Y-S51-1441 proposes a rotor core in which the rotor core is divided into two parts in the axial direction, and the rotor cores are stacked while shifting from each other by 180 degrees in the circumferential direction. [0003] However, in the case of a strip-shaped electrical steel sheet, variations in sheet thickness may occur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/22H02K15/02
Inventor 篠田芳郎垣内健男川濑弘明山田丰信
Owner TOSHIBA BATTERY