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ROTATION ANGLE DETECTION DEVICE | ROTATIONSWINKELERKENNUNGSVORRICHTUNG | DISPOSITIF DE DÉTECTION D'ANGLE DE ROTATION

Patentnummer:EP3109599B1
IPC Hauptklasse:G01D0005244
Anmelder:JTEKT Corporation (0)
5-8, Minamisemba 3-chome; Chuo-ku, , Osaka-shi; Osaka 542-8502, JP
Erfinder:
Anmeldung:24.05.16
Offenlegung:25.05.15
Patenterteilung:20.06.18

Abstract / Hauptanspruch
A rotation angle detection device detects a rotation angle of a motor having a shaft passing through a heat-dissipation plate. The rotation angle detection device includes: a permanent magnet attached to a base end of the shaft; a board that is disposed above the heat-dissipation plate and on which a drive circuit of the motor and a control circuit of the drive circuit are mounted; a magnetic sensor that is provided on the board so as to face the permanent magnet; and a magnetic shielding member that has a tubular shape and is disposed between the heat-dissipation plate and the board to surround the permanent magnet in plan view.

EP3109599B1


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