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.
Claims19
A position device for a throttle valve unit, comprising:
- a throttle valve;
- a throttle valve shaft configured to hold the throttle valve;
- a housing unit configured to contain the throttle valve;
- and
- a Hall-effect angular rotation sensor adjacent the throttle valve shaft, the Hall-effect angular rotation sensor comprising:
- a stationary unit;
- a moving unit moveable relative to the stationary unit;
- a drive unit;
- and
- a transmission positioned between the moving unit and the drive unit;
- wherein the housing unit is configured to at least partially enclose the stationary unit and the moving unit;
- wherein 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 between the first and second partial ring stator segments in which at least one Hall-effect IC switch is positioned;
- and
- wherein the moving unit includes (a) a partial ring magnet segment that is at least partially distanced from the first and second partial ring stator segments by an air gap and (b) a third partial ring stator segment positioned behind the partial ring magnet segment and opposite the air gap, and wherein the moving unit is at least partially retained in a toothed gear segment of the transmission.
A Hall-effect angular rotation sensor device, comprising:
- a housing unit;
- a stationary unit;
- and
- a moving unit moveable relative to the stationary unit;
- wherein the stationary and the moving units are at least partially enclosed by the housing unit;
- wherein 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 between the first and second partial ring stator segments in which at least one Hall-effect IC switch is positioned;
- and
- wherein 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 the partial ring magnet segment and opposite the air gap, and wherein the moving unit is at least partially retained in a rotatable element.
Dependencies are inferred from the claim text.