Rotatable connector with turning angle detecting function
OwnerKatusya Mitsuzukainventor
Life of this patent
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Abstract
A rotatable connector with a turning angle detecting function wherein two concentric housing grooves are formed on the opposite surfaces of a stator core and a rotor core which face each other across an air gap; the coils being housing in the housing grooves; there are formed projection-depression portions which have projections and depressions alternately formed continuously at a specific pitch along the circumferential direction on both sides of outer coil pair; and a signal is transmitted from the stationary side to the movable side via the inner coils of the stator core and the rotor core, to thereby generate an angle signal by utilizing a change in magnetic resistance between the projection-depression portions in synchronization with the rotation of the rotor core.
Claims10
A rotatable connector with a turning angle detecting function comprising:
- a rotor core turning in synchronization with a steering wheel of an automobile;
- a ring-shaped coil disposed on said rotor core;
- a stator core disposed oppositely to said rotor core across an air gap;
- and a ring-shaped coil disposed on said stator core,
- wherein a protection-depression portion is circumferentially provided parallel with said coil on said rotor core, and a projection-depression portion is circumferentially provided parallel with said coil on said stator core.
Dependencies are inferred from the claim text.