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Title:
回転電機およびその製造方法
Document Type and Number:
Japanese Patent JP7152714
Kind Code:
B2
Abstract:
To provide a rotary electric machine capable of being fixed in a radial direction with a simpler structure with respect to a casing and a method for manufacturing the same.SOLUTION: The rotary electric machine includes: a rotor; a cylindrical casing; a bearing; a bearing holder; and a press-fit ring. The rotor has a rotary shaft that rotates around one axis. The cylindrical casing has a stepped portion including: a bottom; and a first support surface, provided between the bottom and an opening facing the bottom, facing the opening. The bearing holder includes: a first surface that contacts the first support surface; a second surface opposite to the first surface; a plurality of protrusions provided on the second surface and projecting in the one axis direction; and a holding portion for holding the bearing. The press-fit ring has an outer peripheral surface press-fitted into the casing and a second support surface which abuts on the second surface and into which the plurality of protrusions bite.SELECTED DRAWING: Figure 2

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Inventors:
Seika Ueno
Taro Matsumae
Takayuki Kawaguchi
Hiroyuki Miyoshi
Application Number:
JP2018153378A
Publication Date:
October 13, 2022
Filing Date:
August 17, 2018
Export Citation:
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Assignee:
KYB Corporation
Top corporation
International Classes:
H02K5/173
Domestic Patent References:
JP2016077069A
JP54056105U
JP55034859A
JP54152913U
JP55062149U
Attorney, Agent or Firm:
Patent Business Corporation Minami Aoyama International Patent Office
Junichi Omori
Takahashi Mitsuru
Teppei Nakamura
Akira Orii
Sekine Masayoshi
Ayako Kaneko
Shintaro Kanayama
Ayako Chiba
Tomohisa Shiraka