Rotary angle sensor
AssigneeHella KGaA Hueck & Co.
InventorsThomas Elpermann, Stefan Peters
Life of this patent
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Abstract
A rotary angle sensor used to determine a relative angular position as compared to a reference position, comprising a housing (1), at least one rotor (3, 4) that is rotatably mounted inside said housing (1), one circuit board (2) containing electrical and/or electronic components as well as one or multiple stators corresponding to the number of used rotors (3, 4). The rotary angle sensor is supposed to be improved in such a manner that a particularly precise alignment of the first rotor (3) in relation to the stator is ensured and that it is inexpensive to manufacture. This is achieved by a first rotor (3) that is interlocked with the housing (1) without any play while a pre-loaded spring washer (14) is positioned on the latching arms (11).
Claims6
A rotary angle sensor used to determine a relative angular position in relation to a reference position, said rotary angle sensor comprising:
- at least one rotor including a holder on which the at least one rotor is mounted, the holder including a first side and a second side opposite the first side, said holder extending from the first side to the second side in a first direction, wherein the at least one rotor is mounted on the first side of the holder;
- a housing on which the holder and a first of the at least one rotor are rotatably mounted;
- a circuit board installed to the housing, the circuit board including electronic components and one or multiple stators corresponding to the available number of rotors;
- at least one latching arm that extends from the first side of the holder away from the second side of the holder in a second direction opposite the first direction;
- and
- a spring washer pretensioned against the at least one latching arm.
Dependencies are inferred from the claim text.