Title:
誘導機
Document Type and Number:
Japanese Patent JP5902639
Kind Code:
B2
Abstract:
There is provided an induction machine having a squirrel-cage rotor, the rotor including: a rotor core; a plurality of rotor slots formed on the rotor core and aligned circumferentially at a predetermined interval; a plurality of rotor bars inserted into one of the plurality of rotor slots; and a plurality of rotor slits formed adjacent to the plurality of rotor slots on an outer circumferential side of the rotor core. The each rotor slit is formed as a hollow such that a cross sectional shape thereof is distinguished into three parts of a slit outer circumferential part, a slit intermediate part, and a slit inner circumferential part. A circumferential width of the each rotor slit on an innermost circumferential side is larger than that on an outermost circumferential side. A circumferential width of the slit intermediate part increases from an outer circumferential side toward an inner circumferential side.
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Inventors:
Naoki Kunihiro
Kazuo Nishihama
Motonobu Iizuka
Kenichi Sugimoto
Sawahata Kiminori
Akiyoshi Komura
Kazuo Nishihama
Motonobu Iizuka
Kenichi Sugimoto
Sawahata Kiminori
Akiyoshi Komura
Application Number:
JP2013043724A
Publication Date:
April 13, 2016
Filing Date:
March 06, 2013
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H02K17/16
Domestic Patent References:
| JP4105539A | ||||
| JP2011087373A | ||||
| JP2012085477A | ||||
| JP4281347A | ||||
| JP2001107671A | ||||
| JP54148207A | ||||
| JP2008278642A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation