Commutator motor
AssigneeRobert Bosch GmbH
InventorsFranz Tasch, Walter Haussecker, Robert Hessdoerfer, Rainer Kurzmann
Life of this patent
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Abstract
Disclosed is a commutator motor, in particular an actuating motor for automotive power accessories such as power window units, sunroofs, and the like, having a brush holder attached to the motor housing and having a device for rotation detection (speed and/or rotation direction) of the motor, which has a pulse generator non-rotatably supported on the motor shaft and at least one pulse receiver affixed to the brush holder, in order to precisely affix the pulse receiver to the brush holder without having to use special fasteners, the pulse receiver is disposed in a positively engaging manner in a pocket formed into the base body and the base body encompasses the pulse generator in a contact-free manner.
Claims16
A commutator motor, in particular an actuating motor for automotive power accessories comprising a commutator (16) non-rotatably supported on a motor shaft (11), a brush holder (19) which has a base body (20) attached to a motor housing (11) and commutator brushes (18) secured to the base body (20), which commutator brushes (18) rest with frictional engagement against the commutator circumference, and a rotation detection device (22) for detecting speed and/or rotation direction of the motor, said rotation detection device having a pulse generator (23) non-rotatably supported on the motor shaft (13) and at least one pulse receiver (24), in particular a Hall sensor, affixed to the brush holder (19), said base body (20) of the brush holder (19) encompassing the pulse generator (23) in a contact-free manner, and said at least one pulse receiver (24) being contained in a positively engaging manner in a pocket (25) formed Into the base body (20).
Dependencies are inferred from the claim text.