K-Tec Kunststoffverarbeitung Gmbh

K-Tec Gmbh

Wolfgang Kasdorf

The invention relates to a system consisting of carbon brushed and circular pot-like carriers () having at least one electrical interconnection and surrounding a commutator of a motor, and a frame () that projects peripherally over the carrier and can be fixed into position between a motor housing and a transmission housing, proceeding from the peripheral surface of the carrier. In order to attain a simplification in the manufacture of carriers for different applications, it is proposed that the carrier be connected form and/or force-locking to one frame of several frames of different configurations via locking projections () and locking recesses ().

Pot-like or cup-like carrier

The invention concerns a pot or cup-shaped carrier () for carbon brushes (), especially intended for servomotors, comprising an inner wall, such as a bottom wall, originating from the carrier perimeter wall, and interspersed by the commutator or by a shaft originating therefrom, wherein each carbon brush is acted upon via a plate spring () in the direction of a commutator that is interspersed by the carrier. In order that the plate spring, which is required to act upon the carbon brushes, can be held back in a defined manner during assembly, while at the same time allowing facilitation of an easy release, without the need for removed elements, it is suggested that the inner wall have partially cut-free spring-loaded first sections, from each of which a holding section originates, which extends along the longitudinal axis of the carrier (), wherein each holding section has a carbon brush () assigned to it in such a way that the carbon brush is freely displaceable in the direction of the commutator, or is held in a pulled-back position, a certain distance from the commutator.

Pot or cup-shaped carrier

The invention concerns an arrangement for supplying power to an electric motor having a commutator, comprising at least two carbon brushes (), as well as flat springs () that subject said brushes to force in the direction of the commutator and proceed from a mounting and are connected to electric terminals. In order to enable a defined transfer of force from the flat springs to the carbon brushes, while at the same time ensuring that an unambiguous fixing of the flat springs into position and a secure current supply takes place, it is proposed that the flat springs () have a U-shape with legs () of unequal length, that a carbon brush () be fastened to each longer leg, and that the shorter leg be connected electrically conductive to an at least partially encapsulated conductor path or printed circuit, which is at least a section of the mounting.

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Aarbergen, Germany

Wolfgang Kasdorf