Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1994-11-02
1998-07-28
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 51, 310 91, H02K 500, H02K 524
Patent
active
057866473
DESCRIPTION:
BRIEF SUMMARY
PRIOR ART
The invention is directed to a device for holding a motor of the generic type indicated in the main claim which is directly and securely connected with a supporting part. When used in connection with an air guidance shaft associated with an air-conditioning system of a motor vehicle, for example, the vibrations of the fan motor are transmitted to this motor receptacle resulting in undesirable noise.
ADVANTAGES OF THE INVENTION
The motor holding device according to the invention with the characterizing features of the main claim has the advantage over the prior art that the damping members eliminate motor vibrations which can cause annoying noise.
Advantageous further developments and improvements of the motor holding device indicated in the main claim are made possible by the steps contained in the subclaims.
DRAWING
Embodiment examples of the invention are shown in the drawing and explained more fully in the following description.
FIG. 1 shows a longitudinal section through a holding pot in which the electric motor is arranged;
FIG. 2 shows a side view of the electric motor according to FIG. 1, which motor is enclosed by a tubular damping member shown in section;
FIG. 3 shows a longitudinal section through another holding device for a fan motor;
FIG. 4 shows a longitudinal section through another embodiment form of a holding device for a fan motor;
FIG. 5 shows a section along line V--V in FIG. 6;
FIG. 6 shows a partial section in the direction of arrow VI of a holding pot associated with the holding device shown in FIG. 4 in enlarged scale;
FIG. 7 shows a top view of a centering sleeve seated in the holding pot according to FIG. 4 in enlarged scale;
FIG. 8 shows a section through the centering sleeve along line VIII--VIII;
FIG. 9 shows a bottom view of the centering sleeve;
FIG. 10 shows a top view of a damping bush according to FIG. 4 in enlarged scale;
FIG. 11 shows a section through the damping bush along line XI--XI;
FIG. 12 shows a bottom view of the damping bush;
FIG. 13 shows a partial section along line XIII--XIII through a centering ring arranged in a supporting cup associated with the holding device according to FIG. 4 in enlarged scale;
FIG. 14 shows a bottom view of the centering ring;
FIG. 15 shows a top view of the centering ring;
FIG. 16 shows a top view and a side view of a retaining washer according to FIG. 4 in enlarged scale;
FIG. 17 shows a section through a damping ring along line XVII--XVII in FIG. 18;
FIG. 18 shows a top view of a damping ring shown in FIG. 4 in enlarged scale.
DESCRIPTION OF THE EMBODIMENT EXAMPLES
An electric motor 112 is accommodated in a pot-shaped receptacle 110 which is shown in longitudinal section in FIG. 1. The electric motor 112 has a tubular housing portion 114 which encloses the motor armature. Supports 116 and 118 associated with the motor housing are arranged at the two end sides of the housing portion 114. The supports 116 and 118 serve to receive bearings for the shaft 120 of the electric motor 112. The diameter of the holding pot 110 is greater than the diameter of the tubular housing portion 114. A damping member 122 manufactured from resilient material is arranged between opposite walls, i.e., the inner wall of the pot 110 and the outer surface area of the tubular housing portion 114. The damping member 122 is tubular. As is shown in FIG. 2, it fits around the tubular housing portion 114 of the electric motor 112 so as to enclose it. It is constructed as a double pipe so that the outer pipe 124 contacts the inner wall of the pot 110 and the inner pipe 126 encloses the tubular housing portion 114 of the electric motor 112. As is shown particularly in FIG. 2, these two pipe parts 124 and 126 of the damping member 122 are arranged at a distance from one another. They are connected with one another by a plurality of web-like connection pieces 128. As will be seen from FIG. 1, the connection webs 128 extend from the end sides of the damping member 122 so as to be approximately parallel to the pipe axis of the damping member 122. Th
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Frank Wolfgang
Gross Gerhard
Hanek Michael
Schneider Ralf-Michael
Van Wijhe Albert
Robert & Bosch GmbH
Stephan Steven L.
Striker Michael J.
Wallace, Jr. Michael J.
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