NON-CONTACT ROTATION ANGLE DETECTION DEVICE, MANUFACTURING METHOD THEREFOR AND THROTTLE VALVE CONTROL APPARATUS

WIPO Patent Application WO/2013/084802

A1

In order to achieve small variations in detection accuracy among individual non-contact rotation angle detection devices even under a temperature environment near -40 degrees, provided are a non-contact rotation angle detection device, a manufacturing method therefor, and a throttle valve control apparatus using the same, the non-contact rotation angle detection device being provided with at least a stator (110), a Hall IC (120A) disposed in a cavity (110S) of the stator (110) and provided with a magneto-sensitive part, a circuit board (130) connected to the Hall IC (120A), a casing (140) provided with a holding part (140H) that holds the stator (110) and a housing part (140S) that communicates with the cavity (110S) and houses the circuit board (130), and a resin member (150A) filled into the cavity (110S) and into the housing part (140S) so as to surround the hall IC (120A) and the circuit board (130), the glass-transition temperature of a resin member (152A) that surrounds at least the magneto-sensitive part in the resin member (150A) being -40 degrees or lower.

MATSUMOTO KAZUO (JP)
SOYAMA HIROAKI (JP)

PCT/JP2012/081026

June 13, 2013

November 30, 2012

Click for automatic bibliography generation  

MIKUNI KOGYO KK (JP)

G01D5/12; F02D9/00; F02D35/00; G01B7/30

WO2005115824A1

2005-12-08

JP2002156245A	2002-05-31
JP2009133637A	2009-06-18
JP2005106781A	2005-04-21
JP2003057078A	2003-02-26
JP2007010514A	2007-01-18

IAT WORLD PATENT LAW FIRM (JP)
Eye アット international patent business corporation (JP)

View/Download PDF      PDF Help

Previous Patent: VEHICLE DOOR FRAME AND INNER MEMBER FOR VEHICLE DOOR FRAME

Next Patent: SHEET WINDING DEVICE