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Title:
ROTATION DETECTION SENSOR
Document Type and Number:
Japanese Patent JP2008275490
Kind Code:
A
Abstract:

To provide a rotation detection sensor which has excellent seal performance for preventing entering of water from outside, prevents damages on a sensor component and its peripheral circuit part by heat distortion of an inside caused by internal heat generation and a temperature change of an external environment, and external force, and is easy to manufacture.

The rotation detection sensor A is fixed to a sensor fixation member 7 attached to a bearing for a wheel, and detects rotation of a rotating ring of the bearing for the wheel. A sensor unit B has a magnetic type sensor element 1 for detecting a detection target body on the rotating ring, a cable 10 for taking out an output signal of the sensor element 1 to an external, and an electrode terminal member 3 for electrically connecting an electrode section 2 of the sensor element 1 and a core wire 4 of the cable 10. The sensor unit B is placed at a predetermined position on the sensor fixation member 7, and a molding section 8 made by molding thermoplastic elastomer or rubber material is provided around the entire sensor unit B and a part of the sensor fixation member 7. A clamp section 9 is provided to fix the cable 10 to the sensor fixation member 7 at a position away from the molding section 8.


Inventors:
OZAKI TAKAMI
TAKAHASHI TORU
NISHIKAWA KENTARO
Application Number:
JP2007120472A
Publication Date:
November 13, 2008
Filing Date:
May 01, 2007
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD
International Classes:
G01P3/487; G01D5/245; G01P1/02
Domestic Patent References:
JP2003254985A2003-09-10
JPH07197938A1995-08-01
JPH0584865U1993-11-16
JP2003287025A2003-10-10
JP2001289867A2001-10-19
JP2005140320A2005-06-02
Foreign References:
US5927867A1999-07-27
Attorney, Agent or Firm:
Masashi Noda
Shuji Sugimoto