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Title:
INDUCTANCE-TYPE ROTATION ANGLE DETECTION DEVICE AND METHOD OF MOUNTING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/126081
Kind Code:
A1
Abstract:
Disclosed is an inductance-type contactless rotation angle detection device for use in motor-driven throttle valve devices. A circuit substrate mounted with a stator-side conductor and an electric circuit is fixed to a resin cover without the use of an adhesive. An electric conductor and a TPS substrate (as the circuit substrate) are electrically connected by pressure welding (press-fitting), and the circuit substrate and the electric conductor are configured to be a single formed body with the same molded resin. By this means, it is not necessary to prepare a new metal conductor (bonding wire), and welding and soldering are unnecessary. Further, by covering the TPS substrate with the same material as the cover resin, steps for attaching the substrate to the cover can be omitted, making it possible to decrease manufacturing costs.

Inventors:
HIRANUMA Daisuke (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
平沼 大輔 (〒03 茨城県ひたちなか市高場2520番地 日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
Application Number:
JP2011/058833
Publication Date:
October 13, 2011
Filing Date:
April 07, 2011
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
日立オートモティブシステムズ株式会社 (〒03 茨城県ひたちなか市高場2520番地 Ibaraki, 〒3128503, JP)
HIRANUMA Daisuke (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
G01D5/245; F02D9/10; F02D35/00; G01B7/30; G01D5/12
Foreign References:
JP2008309598A2008-12-25
JP2001289610A2001-10-19
JPH0199006U1989-07-03
JP2004199974A2004-07-15
JP2003254782A2003-09-10
JP2008096231A2008-04-24
Other References:
See also references of EP 2557399A4
Attorney, Agent or Firm:
KASUGA Yuzuru (Torii-nihonbashi Bldg, 4-1 Nihonbashi-honcho 3-chome, Chuo-k, Tokyo 23, 〒1030023, JP)
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Claims: