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Patent Searching and Data


Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/215969
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a rotary electric machine which can be efficiently cooled while reducing the noise that is generated when pulling in cooling air from a fan side. This rotary electric machine has: a stator; a rotor having a rotor core arranged on the inner peripheral side of a stator core of the stator; a rotary shaft that rotates the rotor core; a bearing that rotatably supports the rotary shaft; a cooling fan provided to the rotary shaft; and a housing that accommodates the stator core and the rotor core, wherein: the cooling fan is configured from a main plate, vanes provided on the housing-facing surface of the main plate so as to extend in the radial direction of the rotor core, and a side plate connected to the vanes and provided along the main plate; air inlet port in the housing is provided in a region formed by projecting the side plate toward the housing; the angle φ formed between the main plate and the side plate is greater than 0 degrees; and the gap between the main plate and the side plate increases toward the inner diameter side.

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Inventors:
KUDO Taro (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
FUJII Katsuhiko (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
TAMURA Tatsuhiro (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
JP2019/003685
Publication Date:
November 14, 2019
Filing Date:
February 01, 2019
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
International Classes:
H02K9/06; F04D29/28; F04D29/44; F04D29/70; H02K9/26
Attorney, Agent or Firm:
POLAIRE I.P.C. (13-11, Nihonbashikayabacho 2-chome Chuo-k, Tokyo 25, 〒1030025, JP)
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