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Patent Searching and Data


Title:
STATOR COOLING STRUCTURE FOR ROTARY ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/053920
Kind Code:
A1
Abstract:
The present invention is provided with: a shaft (30) pivoted on a motor case (10) via a bearing (20); a rotor (40) fixed to the shaft (30); and a stator (50) fixed to the motor case (10) and disposed facing the rotor (40). The stator (50) is provided with: a stator coil (52) comprising a plurality of phases formed by concentrically distributed windings; and a refrigerant supply port (10b) for dropping a refrigerant onto a stator coil end (53), wherein in the stator coil end (53), refrigerant flow paths (Puv, Pvw) are respectively formed between radially adjacent coils (52U-52W) of each of the phases, a refrigerant intake port (G1) is formed between two adjacent unit coils of the outer circumferential coil (52U), and the refrigerant intake port (G1) is disposed directly under the refrigerant supply port (10b).

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Inventors:
TAKEDA, Ken (33-8 Shiba 5-chome, Minato-k, Tokyo 10, 〒1088410, JP)
Application Number:
JP2018/008232
Publication Date:
March 21, 2019
Filing Date:
March 05, 2018
Export Citation:
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Assignee:
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA (33-8, Shiba 5-chome Minato-k, Tokyo 10, 〒1088410, JP)
International Classes:
H02K9/19; H02K3/24; H02K3/34; H02K5/20
Foreign References:
JP2006087165A2006-03-30
JP2011030288A2011-02-10
JP2008289245A2008-11-27
JP2008125143A2008-05-29
Attorney, Agent or Firm:
MITSUISHI, Toshiro et al. (Mitsuishi Law and Patent Office, 4th Floor TAKU-Akasaka Building, 9-6, Akasaka 4-chome, Minato-k, Tokyo 52, 〒1070052, JP)
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