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Title:
AXIAL AIR GAP ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2015/155879
Kind Code:
A1
Abstract:
The purpose of the present invention is to ensure the assemblability of the stator and reliably reduce the shaft voltage in an axial air gap rotating electric machine. The axial air gap rotating electric machine comprises: a circular ring-shaped stator (20) formed by a plurality of stator cores (25) arranged about a rotational axis direction in a ring shape, said stator cores (25) each comprising a tubular bobbin (23) and a coil (22), said tubular bobbin (23) having an iron core (21) inserted into a bobbin inner tubular portion substantially matching the peripheral shape of the iron core; and at least one rotor (30) plane-opposing to the stator. The axial air gap rotating electric machine has a plate-like first conductive member (10) having a horizontal portion (10a) extending from one opening portion of the bobbin inner tubular portion on the inner peripheral surface of the bobbin inner tubular portion in parallel with the rotational axis and a vertical portion (10b) bent in a direction perpendicular to the extending direction of the horizontal portion and contacting the end surface of the bobbin opening portion, wherein the horizontal portion contacts a part of the iron core outer peripheral surface and a part of the inner peripheral surface of the bobbin inner tubular portion and the vertical portion is conductively connected to the inner circumferential surface of a housing.

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Inventors:
TOKOI Hirooki (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
TAKAHASHI Shuuichi (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
YONEOKA Yasuei (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
SUZUKI Toshifumi (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
SAKAI Toru (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
YAMAZAKI Katsuyuki (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
MASAKI Ryousou (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
IWASAKI Norihisa (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
ENOMOTO Yuji (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
JP2014/060450
Publication Date:
October 15, 2015
Filing Date:
April 11, 2014
Export Citation:
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Assignee:
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. (3 Kanda Neribei-cho, Chiyoda-ku Tokyo, 22, 〒1010022, JP)
International Classes:
H02K21/24; H02K3/34
Foreign References:
JP2014017915A2014-01-30
JP2012005307A2012-01-05
Other References:
See also references of EP 3131188A4
Attorney, Agent or Firm:
INOUE Manabu et al. (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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