Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – Terminal block
Patent
1994-04-21
1995-06-06
LeDynh, Bot
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
Terminal block
200 83R, 200 83N, H01H 3540
Patent
active
054227917
DESCRIPTION:
BRIEF SUMMARY
PRIOR ART
The invention is based on a terminal strip, in particular for an electric switching device, of the generic type of the main claim. In previous terminal strips, the flat connectors which are connected to the conductor tracks of the printed circuit board of the switching device are arranged in a plurality of rows. These known plug-in connections do not have any pressure-compensation element in the base body of the terminal strip. In addition, as is disclosed for example in U.S. Pat. No. 4,800,244, the pressure-compensation elements are arranged in the wall of the housing of the control device. In order to test the pressure-compensation element for operational capability, an additional testing process is necessary in the installed state. However, for this, each control device has to be tested individually in order to ensure absolute operational reliability. Sample test-like examinations are not adequate.
ADVANTAGES OF THE INVENTION
The terminal strip according to the invention having the characterizing features of the main claim has, in contrast with the above, the advantage that the control device can be produced cost-effectively and the arrangement of the pressure-compensation element is suitable for large-scale mass production. The installation of the pressure-compensation element in the terminal strip saves space and permits simple assembly. No additional testing process is necessary since the testing of the pressure-compensation element can be carried out together with the functional testing of the terminal strip. Since every individual terminal strip has already been tested for its operational capability, the testing of the pressure-compensation element can be included in this testing process. Additional testing processes which have to be carried out separately are not necessary, neither is the testing process which is necessary for the terminal strip adversely affected. By virtue of the special design of the pressure-compensation element, a very simple installation in the terminal strip is possible. By simply applying one step, secure installation in the predetermined direction can be ensured when the pressure-compensation element is functioning in one direction only. If the pressure-compensation element is arranged inside the base body, no additional cover is needed to protect the pressure-compensation element. The base body then constitutes at the same time the protective cover.
By means of the measures specified in the subclaims, advantageous developments of the terminal strip specified in the main claim are possible.
DRAWING
Exemplary embodiments of the invention are illustrated in the drawing and explained in greater detail in the subsequent description. FIG. 1 shows a longitudinal section through a terminal strip with a pressure-compensation element installed, FIGS. 2 and 3 each show a longitudinal section through a different exemplary embodiment, FIGS. 4a and 4b show a longitudinal section through a pressure-compensation element and FIG. 5 shows a longitudinal section through a modification of a pressure-compensation element.
DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
In FIG. 1, 10 designates a base body, produced from plastic, of a terminal strip 11, which body has at its front side a receptacle element 12 for receiving a mating connector (not illustrated). A plurality of flat connectors 13 are embedded in a sealed fashion in the base body 10. In this arrangement, the flat connectors 13 which are arranged in a plurality of rows project with their plug-in sections 14 into the receptacle element 12 for the mating conductor. The other end of the flat connectors 13 is constructed as a terminal lug 15 and soldered to an associated conductor track (not illustrated) of a printed circuit board.
An extension 10a is formed on the base body 10, on which extension 10a a locking part 16 is located, with which the counter bearing in the form of a snap-in closure can be attached to the terminal strip 11. At the side, facing the terminal lugs 15, of the terminal strip 11, the housing 17 of a
REFERENCES:
patent: 4211901 (1980-07-01), Matsuda et al.
patent: 5101549 (1992-04-01), Sogge et al.
Bentz Willy
Goetzke Siegfried
Schiefer Peter
Ledynh Bot
Robert & Bosch GmbH
Striker Michael J.
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