Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
EMBEDDED-MAGNET-TYPE ROTOR
Document Type and Number:
WIPO Patent Application WO/2020/166574
Kind Code:
A1
Abstract:
In the present invention, a rotor core (23) has: an inside magnetic part (26) located on the radially inner side relative to a magnet insertion hole (24); a salient pole part (27) located on the radially outer side relative to the magnet insertion hole (24), the salient pole part (27) being formed so as to diverge radially inwards from the circumscribed circle of the rotor core (23) commensurately with increasing circumferential-direction distance from the magnetic pole center; and bridge parts (28) extending towards the inside-magnetic-part (26) side from both circumferential sides of the salient pole part (27). A permanent magnet (25) is in contact with the inside magnetic part (26) and is not in contact with the salient pole part (27). A circumferential-direction gap (31) is formed on both circumferential sides of the permanent magnet (25) so that the radially outer side of the permanent magnet (25) and the bridge parts (28) are not in contact. An elastic member (32) is installed in at least one of the circumferential-direction gaps (31) on the two sides of the permanent magnet (25). The elastic member (32) urges the permanent magnet (25) in the circumferential direction and secures the permanent magnet (25).

More Like This:
JP6190677The rotor of rotation electrical machinery
WO/2018/163852LAMINATED CORE OF DYNAMO-ELECTRIC MACHINE, METHOD FOR MANUFACTURING LAMINATED CORE OF DYNAMO-ELECTRIC MACHINE, AND DYNAMO-ELECTRIC MACHINE
JP6655500Electric motor
Inventors:
TAKEUCHI SHUN (JP)
FUJISAKI KATSUYA (JP)
Application Number:
PCT/JP2020/005206
Publication Date:
August 20, 2020
Filing Date:
February 11, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DENSO CORP (JP)
International Classes:
H02K1/22; H02K1/27
Foreign References:
JP2010233413A2010-10-14
JP2010161896A2010-07-22
JP2010183772A2010-08-19
JP2008545364A2008-12-11
US20150357872A12015-12-10
DE102014225260A12016-06-09
Attorney, Agent or Firm:
HATTORI Masaki (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: EMBEDDED MAGNET-TYPE ROTOR

Next Patent: FUEL FLOW PASSAGE MEMBER, AND FUEL INJECTION VALVE EMPLOYING SAME