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Skew shape variable laminated iron core and method of producing the same

一种歪斜、铁芯的技术，应用在制造电动发电机、制造定子/转子本体、磁路形状/式样/结构等方向，能够解决发生榫合现象和噪音、措施不够充分等问题，达到容易调整的效果

Inactive Publication Date: 2008-09-03
MITSUI HIGH TEC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, the skewed shape cannot be changed within the manufactured rotor laminated core, and in the case where the use mode or purpose of use of the motor is changed midway, measures to prevent this become insufficient, and there is a high possibility that the motor is operating Occurrence of mortise and noise

Method used

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  • Skew shape variable laminated iron core and method of producing the same
  • Skew shape variable laminated iron core and method of producing the same
  • Skew shape variable laminated iron core and method of producing the same

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Embodiment Construction

[0056] Embodiments embodying the present invention will be described below with reference to the accompanying drawings.

[0057] figure 1 It is a perspective view of a rotor laminated iron core with variable skew shape according to the first embodiment of the present invention, and FIG. 2 is figure 1 3A to 3C are explanatory views of skewed shapes formed in the rotor laminated core, respectively, and FIG. 4 is an explanatory view showing The formation process of a core sheet in the manufacture of rotor laminated cores, Figure 5 is a perspective view of a skew shape variable rotor laminated core according to a second embodiment of the present invention, and FIG. 6 is Figure 5 Partially expanded side cross-sectional view of the caulked connection portion of the rotor laminated core.

[0058] Such as figure 1 As shown in FIG. 2, a rotor laminated core 10 of a motor as a skew shape-variable laminated core according to a first embodiment of the present invention includes 12 m...

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Abstract

A laminated iron core (10) where iron core elements (13, 14, 15) are laminated through staking projections (22, 24) and staking holes (21, 23, 25) in which the staking projections are fitted. In the iron core elements except the one in the lowermost layer, the staking projections and the staking holes are formed at positions different from each other but on the same radius from the center of rotation of skewing of the iron core elements. A staking hole is longer in the circumferential direction than a staking projection fitted in the staking hole. Then, when staking holes of an iron core element receive staking projections of the iron core element directly above it, a gap is formed in the circumferential direction of each staking hole.

Description

technical field [0001] The present invention relates to a laminated iron core and a method of manufacturing the iron core, wherein the skewed shape becomes variable after the laminate is caulked. Background technique [0002] In an electric machine, a rotor laminated core is formed by caulking and laminating a plurality of rotor laminations punched out from sheet metal by a die set, the rotor laminated core being rotatably housed in a stator laminated core Inside, the stator laminated core is formed by caulking and laminating a plurality of stator core sheets punched out from sheet metal by a die set. [0003] Incidentally, in order to prevent a mortise phenomenon from occurring at the time of motor operation, for example, at the time of rotor laminated core manufacture, the rotor core pieces are caulked and laminated while being skewed. [0004] Here, JP-A-5-56608 discloses a skew formed in the following manner: when a punched rotor lamination is laminated on a previously ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/02H02K1/18
CPCH02K2201/09H02K15/022
Inventor 藤田胜房
Owner MITSUI HIGH TEC INC
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