Hall effect rotation sensor for a throttle valve unit
AssigneeAB Elektronik GmbH
InventorsPeter Apel, Klaus Wilczek
Life of this patent
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Abstract
A Hall-effect angular rotation sensor device for a throttle valve unit. The sensor includes a housing unit, a stationary unit, and a moving unit moveable relative to the stationary unit. The stationary and the moving units are at least partially enclosed by the housing unit. The stationary unit includes a first and a second partial ring stator segment that are at least partially retained in the housing unit, leaving a stator distancing gap in which at least one Hall-effect IC switch is positioned. The moving unit includes (a) a partial ring magnet segment that is at least partially distanced from the first and the second partial ring stator segments by an air gap and (b) a third partial ring stator segment positioned behind and opposite the air gap.
Claims10
An adjusting device for a throttle valve unit, comprising:
- a throttle valve;
- a throttle valve shaft;
- a throttle valve housing;
- and
- a Hall-effect angular rotation sensor device coupled with the throttle valve shaft, the Hall-effect angular rotation sensor device comprising:
- a stationary unit;
- a mobile unit moveable in relation to the stationary unit;
- a drive unit;
- a transmission positioned between the mobile unit and the drive unit;
- and
- a housing element that at least partially encloses the stationary unit, the mobile unit, and the transmission;
- wherein the transmission, the stationary unit, and the mobile unit are contained in a cap housing element;
- wherein the stationary unit includes at least two partial stator ring segments positioned at a distance from each other to leave an air gap and at least one stator distancing gap between them;
- and
- wherein the mobile unit includes a ring magnet contained in a toothed wheel segment of the transmission, the ring magnet being configured to move at least partially in the air gap.
Dependencies are inferred from the claim text.