Electric drive unit

Details Electric drive unit Electric drive unit

2000-08-25

2001-09-11

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S090000, C310S049540

Reexamination Certificate

active

06288466

ABSTRACT:

PRIOR ART
The invention is based on an electric drive unit.
A subsequently published patent DE 197 27 120 A1, sets forth an electric drive unit, for a windshield wiper of a vehicle. The electric drive unit includes drive motor with an armature that is accommodated in an essentially cup-shaped pole housing, with an essentially cup-shaped transmission housing. The transmission housing is fastened to the end face of the pole housing and is for containing transmission elements that are acted on by the rotation of an armature shaft of the armature. The armature shaft is supported in the pole housing at one end and in the transmission housing at the other end, wherein the armature shaft is supported in a first bearing adjacent to a bottom of the pole housing and is supported in a second bearing in the vicinity of the transmission housing. The second bearing is embodied as a ball bearing, which absorbs radial and axial forces and is axially secured on one side by an axial stop face in the transmission housing and is axially secured on the other side by a retaining bracket that is inserted into the transmission housing lateral to the armature shaft and in this connection, is embodied as U-shaped.
ADVANTAGES OF THE INVENTION
The drive unit has an advantage that the flexible tongues load the outer ring of the ball bearing toward the transmission housing, in a direction of an axial stop face and in this manner, permit the outer ring of the ball bearing to press against the axial stop face in a play-free manner.
Advantageous updates and improvements of the electric drive unit are possible by measures taken as set for the hereinafter.
The drive unit has the advantage that a tool designated for producing the retaining bracket is relatively easy to embody.
The retaining bracket can be installed without any trouble by means of a simply embodied auxiliary device.
The features set for therein result in the advantage that additional flexible tongues load the outer ring of the ball bearing in the direction of the axial stop face.
An exemplary embodiment of the electric drive unit is shown in the drawings and will be described in detail below.


REFERENCES:
patent: 5087847 (1992-02-01), Giesbert et al.
patent: 5624193 (1997-04-01), Vogelsberger et al.
patent: 5788210 (1998-08-01), Mimura
patent: 6045268 (2000-04-01), Long et al.

Affiliated with

Also associated with

Rating

Electric drive unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric drive unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric drive unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2462324