Title:
MOTOR
Document Type and Number:
Japanese Patent JP2014128094
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To further axially miniaturize a motor by compactly disposing a rotation detection sensor inside.SOLUTION: In the center of a cover member 28 constituting a motor 10, a second bearing 40 is provided for supporting a shaft 16 in a freely rotatable manner and at an outer circumferential side of the second bearing 40, a rotation detection sensor 22 is disposed for detecting a rotating speed of a rotor 18 of which the cross section is fan-shaped and which is rotated together with the shaft 16. Inside of the cover member 28, a lead wire 64 connected to a coil 60 and a driver circuit 66 for electrifying the coil 60 via the lead wire 64 are disposed in a space where the rotation detection sensor 22 is not provided. Thus, the rotation detection sensor 22, the lead wire 64 and the driver circuit 66 can be disposed inside of the cover member 28 without being overlapped axially, such that an axial dimension is shortened and downsizing can be attained.
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Inventors:
SUZUKI HIDENORI
Application Number:
JP2012282303A
Publication Date:
July 07, 2014
Filing Date:
December 26, 2012
Export Citation:
Assignee:
KEIHIN CORP
International Classes:
H02K11/00; G01D5/245; G01P1/02; G01P3/44
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Akira Yamano
Toshiyuki Miyadera
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Akira Yamano
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