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Title:
TORQUE MOTOR
Document Type and Number:
Japanese Patent JP2001054272
Kind Code:
A
Abstract:

To provide a torque motor for increasing generated torque without increasing a size.

An outer stator core 50 surrounds outside in a vertical direction with respect to the peripheral direction of a rotor 41 with a nearly constant sectional width. If the inner diameter of the outer stator core 50 for accommodating the rotor 41 is set to D, a sectional width is set to T, and length in the axial direction of inner periphery is set to L, a length M1 of a magnetic path is expressed by M1=2D+3T+L. In this case, by composing the dimensions of the outer stator core so that (π-2)D/2+(π-4)T/2-L>0 is established, a magnetic path length can be reduced, as compared with the case where the stator core is provided at the outside in the peripheral direction of the rotor, thus preventing a torque due to magnetic resistance from decreasing and reducing the build of a torque motor.


Inventors:
Kondo, Jiro
Application Number:
JP1999000222479
Publication Date:
February 23, 2001
Filing Date:
August 05, 1999
Export Citation:
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Assignee:
DENSO CORP
International Classes:
F02D9/02; F02D11/10; H02K26/00; H02K33/02; (IPC1-7): H02K33/02; F02D9/02; F02D11/10; H02K26/00
Attorney, Agent or Firm:
服部 雅紀



 
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