DE3143000A1 - Bearing plate - Google Patents

Abstract

A sealed machine having an open condensed water outlet opening in the circumferential region of the bearing plate by means of wall depressions (5, 6), which are connected to one another and are bent towards one another, in the end annular surface (2) and in the axial edge projection (3) of the bearing plate (1), which are at suitable distances from the housing (4). <IMAGE>

Description

Bearing shield

Din @rfindung concerns a bearing shield according to the generic term de @ patent claim 1.

for splash-proof electrical machines are on the underside of the machine housing, drain openings for condensation water that can be closed many times attached, which for security reasons are only opened from time to time, because of the drainage openings, which are to be dimensioned sufficiently large, the ingress or Introducing, in particular, electrically conductive rod-shaped or band-shaped stiffeners Foreign bodies into the interior of the Mascrzinen with the risk of touching live or moving parts is possible.

The invention is based on the object in a simple manner to ensure constant, adequate drainage of condensation water without monitoring and the penetration or introduction of such foreign bodies into the interior of the machine impede.

The solution to the task at hand succeeds with the measures according to the Characteristic of claim 1.

Advantageous embodiments of the invention are shown in the drawing and explained in more detail below.

Fig. 1 shows a longitudinal section through part of a bearing plate and the housing of a closed electrical machine, FIGS. 2 to 4 partially Side views of the end shield with wall depressions of different contours.

According to FIG. 1, the end shield 1 has at its peripheral area 1A in Usually an end ring surface 2 from which an edge projection 3 protrudes axially. The edge projection 3 matches the end zone of the cylindrical housing 4 surrounded, the housing end face 4A rests against the end ring surface 2.

To form a condensation drainage opening is both in the end ring surface 2 as well as in the edge projection 3 each have a wall recess 5 or 6 attached, which are connected to each other at an angle.

The wall recesses 5A, 6A can have a part-circular contour the same radius according to FIG. 3 by a tool guided in the axial direction can be manufactured in one operation, with a larger diameter is chosen as the radial height of the end ring surface 2, so that the wall recess 5A is open to the outside and communicates with the wall recess 6A. At least the axial depth of the wall recess 5A is chosen so that foreign bodies, in particular of the type mentioned cannot get into the interior of the machine or be brought, because for this they would have to experience a diversion. Since the drain openings are operational are at the lowest points of the housing or the end shields, others can as a rod-shaped body neither by itself nor intentionally into the interior of the machine reach.

With an angled formation of the wall recess 5B according to FIG. 4 would even be a double deflection of a rod-shaped foreign body in two planes inside the two wall recesses 5B and 6B necessary to get into the interior of the machine to be able to penetrate.

4 figures 2 claims L e r s e i t e

Claims (2)

Claims l.J bearing shield with a in the cylindrical Cchäusc an electrical machine with a condensate drain that protrudes from the axial edge radially within an end ring surface resting on the ring-shaped housing end face, d a d u r c h e k e n n n z e i. c h n e t that the end ring surface (2) and the Edge projection (3) each at least one interconnected un Wall recess angled at least once to one another (5, 6; 5A, 6A; 5B, 6B) for condensate drainage from inside the machine. 2. bearing plate according to claim 1, d a. d u r c h g e -k e n n z e i c h n e t that in the edge projection (3) and the end ring surface (2) in the axial Direction a continuous part-circular recess (5A, 6A) with a uniform Diameter is incorporated, which is greater than the radial height of the end ring surface (2) is sized.