DE7924748U1 - Housing for line-up installation devices - Google Patents

Description

SIEMENS AKTIENGESELLSCHAFT Our symbol Berlin and Munich VPA79 G 4 O 5 9 BRD

Housing for line-up installation devices

The innovation concerns a housing for line-up installation devices, like circuit breaker, which has a duct for switching gases leading to the outside, in which Guide ribs are arranged obliquely to the base plane.

In such a known housing, the channel is from a wall along the base plane and from one to it bounded convex curved wall, between which at an angle to the base plane short, thick guide ribs ar.geordnev are. Hit the switching gases of a line switch in this case approximately perpendicular to a possibly adjacent housing.

It is also known to use an outflow channel in circuit breakers To be designed like a labyrinth and in the interior guide ribs parallel: to be arranged at the base level. With this miniature circuit breaker, too, the escaping gases leave the housing approximately vertically

No 2 Council / 2 5.08.197 9

- 2 - VPA 79 G \ O 5 9 FRG

to the housing surface, i.e. in the direction of the base plane.

With the known housings, the escaping switching gases can carry live parts of the neighboring devices reach directly, which can lead to short-circuit arcing.

As a rule, housings for circuit breakers and similar switching devices have in the gas outlet opening a perforated plate or wire mesh to deionize the gases. However, these metal parts can burn or this can lead to overlaps.

The innovation is based on the task of creating a housing for installation devices that can be lined up, such as circuit breakers, to developj. that the not yet deionized Keeps switching gases away from live parts of the neighboring device.

This object is achieved according to the innovation in that guide ribs and channel wall have approximately the same course in the outer area and that the imaginary ζ extension of the guide ribs with regard to the base

plane is inclined in an angle range of 15 ° to 50 °. In this way, on the one hand, a favorable outflow is achieved behave and on the other hand, the switching gases are deflected downward so that they are arranged in the upper area Do not reach the terminals of an adjacent housing.

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In particular, it is favorable, the imaginary extension of the guide ribs with respect to the base plane by one Tilt angles of about 40.

- 3 - VPA 79 6 Ί Ο 5 9 BRD

The innovation should be roughly based on one in the drawing
schematically reproduced embodiment are explained in more detail:

Adjacent to the housing 1 for an installation device that can be lined up on mounting rails, for example a circuit breaker, a further device 2 is arranged. In the housing 1 there is a duct 3 leading to the outside designed for switching gases, arranged in the guide ribs 4 are.

It is essential that the guide ribs 4 and the channel wall 5 in the outer area - at 6 - approximately the same course have and that the imaginary extension 7 of the guide ribs with respect to the base plane, that is, parallel

to the bottom of a distribution in which the housing 1 is arranged, inclined in an angular range of 15 ° to 50 ° is. The angle 9 is preferably approximately 40 °.

The switching gases flowing out of the opening of the channel 3 are thereby distracted by live parts, a connection terminal 10, of a neighboring device.

2 claims for protection
1 figure

Claims (2)

- ι - VPA 79 G 4 0 5 9 BRD protection claims 1.Housing for installation devices that can be lined up, such as circuit breakers, which has an outwardly leading channel for switching gases, in the oblique to the base plane Guide ribs are arranged, characterized in that that guide ribs (4) and channel wall (5) in the outer area (at 6) have approximately the same course and that the imaginary extension (7) of the guide ribs / \ 10 (4) with respect to the base plane C8) in an angular range is inclined from 15 ° to 50 °. 2. Housing according to claim 1, characterized in that that the imaginary extension (7) of the Fütuungsrippen (4) with respect to the base plane (8} around is inclined at an angle (- = 0 of about 40 °.