Device for creating an electrically conducting connection for an

Details Device for creating an electrically conducting connection for an Device for creating an electrically conducting connection for an

1998-07-15

2000-12-12

Bradley, Paula

Electrical connectors

With circuit conductors and safety grounding provision

439 95, 174 51, H01R 466, H01R 13648

Patent

active

06159024&

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
This invention relates to a device for an electrically conductive connection of a mounting plate installed in a switchgear cabinet, rack or housing.
2. Description of Prior Art
If a mounting plate is connected in an electrically conducting manner with the rack or the cabinet body, it is necessary to create connecting points on the mounting plate and the rack or the cabinet body, which are connected with each other by grounding cables. It is thus necessary, particularly with respect to the mounting plate, to make the appropriate preparations, and contacting can only be performed after the mounting plate is inserted. This is not easy to do, in particular when the mounting plate is installed in the switchgear cabinet directly connected to the back wall.


SUMMARY OF THE INVENTION

It is one object of this invention to create a device of the type mentioned at the outset, wherein contacting with the rack or the cabinet body of the switchgear cabinet can automatically take place when the mounting plate is inserted, and wherein the application of the contact spring is simple and solid.
With the aid of the simple and cheaply produced contact springs, which can be fixed on the edge of the mounting plate prior to the latter being inserted, it is possible while inserting the mounting plate to automatically provide electrically conducting connections with the adjoining frame legs of the rack, mounting rails or bevel of the lateral walls at an arbitrary number of locations, since the contact section of the contact springs rest against them under prestress and produce electrically conducting connections with these elements of the switchgear cabinet, which are provided with an electrically conducting surface, if required. In this case it is unimportant whether the mounting plate has an electrically conducting surface or an electrically non-conducting protective surface coating. When the contact spring is slipped on the end section of the edge of the mounting plate, the securing claws penetrate through the protective surface coating and provide prestressed electrical connections with the mounting plate. Thus, the edge of the mounting plate is beveled in a U-shape in such a way that the end section extends parallel with the rear wall and faces it, and the contact sections partially enclose the edge of the mounting plate. An improved support of the contact spring on the end section of the edge of the mounting plate is thus achieved. Furthermore, when inserting the mounting plate over the contact sections, no force component is exerted which might lead to the release of the contact spring from the edge of the mounting plate. Alternatively, the contact springs are fixed in place on the frame leg, the mounting rail or the frame leg-like bevel and penetrate through a protective surface coating and make contact with the edge area of the mounting plate which, if required, is also bare, without requiring additional manipulations.
With one preferred embodiment of this invention, along with a dependable operation, the embodiment and attachment of the contact springs on the frame legs, the mounting rail or the frame leg-like bevel is simple, and there is solid support. Alternatively, the contact springs are fixed in place on the frame leg, the mounting rail or the frame leg-like bevel and penetrate through a protective surface coating and make contact with the edge area of the mounting plate which, if required, is also bare, without requiring additional manipulations.
In accordance with one embodiment of this invention the securing claws and the inward located securing section are laterally stamped out and bent in a direction toward the outward located securing section.
If the contact sections are wider than the securing sections, and the securing claws are oriented in the direction toward the end of the end section of the edge of the mounting plate, the contact spring can be produced from a strip of spring band steel as a simple punched bent component.
In another embodiment the

REFERENCES:
patent: 4558917 (1985-12-01), Kamono et al.
patent: 4803306 (1989-02-01), Malmquist
patent: 5233507 (1993-08-01), Gunther et al.
patent: 5343361 (1994-08-01), Rudy, Jr. et al.
patent: 5853296 (1998-12-01), Gunther et al.

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