Title:
電動機
Document Type and Number:
Japanese Patent JP5926532
Kind Code:
B2
Abstract:
Provided is a motor including: a motor shaft; a rotor rotating about the motor shaft; a stator disposed around the rotor; a casing accommodating the rotor and the stator; a cover covering a heat radiation target end surface of the stator while supporting one end portion of the motor shaft; a heat transfer layer having an electric insulation property and interposed between the stator and the casing to transfer heat from the stator to the casing; and a heat transfer sheet provided separately to the heat transfer layer to transfer heat generated in the stator to the casing, wherein the heat transfer sheet has an electric insulation property and a heat transfer property and is interposed between the heat radiation target end surface of the stator and the cover so as to contact the heat radiation target end surface and the cover.
Inventors:
Nakazumi Akira
Seiji Saeki
Kazushige Koiwai
Akira Tsutsui
Seiji Saeki
Kazushige Koiwai
Akira Tsutsui
Application Number:
JP2011235853A
Publication Date:
May 25, 2016
Filing Date:
October 27, 2011
Export Citation:
Assignee:
Kobelco Construction Machinery Co., Ltd.
KABUSHIKI KAISHA KOBE SEIKO SHO
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
H02K3/24; H02K3/34; H02K5/18; H02K5/20; H02K9/22
Domestic Patent References:
| JP2007143245A | ||||
| JP2010035310A | ||||
| JP2006042500A | ||||
| JP2002142402A | ||||
| JP2004166414A |
Foreign References:
| US6201321 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Muramatsu Toshiro
Masataka Otani
Muramatsu Toshiro