Electrical connectors – With coupling movement-actuating means or retaining means in... – Retaining means
Patent
1995-05-10
1997-06-10
Nguyen, Khiem
Electrical connectors
With coupling movement-actuating means or retaining means in...
Retaining means
439372, H01R 13627
Patent
active
056370105
DESCRIPTION:
BRIEF SUMMARY
PATENT SPECIFICATION
The present invention relates to a connector pair with the features of the preamble clause of Claim 1.
Such connector pairs have been described in the prior art in the most different embodiments and are commonly employed. Such designs are particularly popular in high power current connectors. However, a great plurality of such designs is also available for low power current connectors.
A number of connector pairs is known, which can be interlocked by bayonet-type, screwed-type or snap-type mechanisms or the like. With these known connector pairs, however, the plug and the receptacle cannot simply be assembled without operating a locking element which in the assembled condition keeps the two components in a securely connected position and is to be operated only for disconnecting the two components.
From DE 39 28 710 A1 an electrical plug-in connection with two connecting elements is known, where one connecting element has at least one locking element supported in a forced guidance of a housing and being radially movable by means of an axial slide, which in the locked position engages a shoulder of the other connecting element and which can be controlled by manual displacement of the axial slide subjected to a spring arrangement into an unlocking position to release the shoulder. The spring arrangement is formed by a partially loosely fitting punched sheet part, the loosely fitting sections of which are operated by the axial slide.
The locking elements are arranged in a tangential direction with respect to the hollow space of the housing and travel radially outward upon clearing of the housing hollow space.
From U.S. Pat. No. 4,017,139 an electrical plug-in connection is known where spring tongues arranged in a circular cylindrical manner have radially inwardly facing projections with semi-circular sections in the areas of their free ends, which can engage a corresponding annular groove of a mating connector. Moreover, projections are arranged at the outer surface of the spring elements, which can engage a recess in a ring surrounding the spring elements upon displacement of the ring in order to disconnect the two plug-in connectors. In the engaged condition of the plug-in connectors the outer projections of the spring elements bear against the inner wall of the ring so that the the spring elements cannot yield radially in an outward direction.
For the purpose of a convenient operation it is desirable to achieve such an operability.
In view of this, the present invention is based on the problem to provide a connector pair of the initially mentioned type which allows for this way of operation.
To solve this problem, the engaging element of the initially mentioned connector pair is designed in a manner as defined in the characterizing clause of Claim 1.
This design permits a simple plug-in operation of the plug and the receptacle without requiring the sleeve to be operated. Although there is a possibility to bring the sleeve in its operated position where it might facilitate the plug-in operation, it is not mandatory to displace the sleeve.
Additional advantages, properties and characteristics of the invention are the subject of the dependent claims and will be explained with reference to the accompanying drawings, in which:
FIG. 1 shows a schematic longitudinal section of a connector pair in the disconnected condition;
FIG. 2 shows an enlarged detail of FIG. 1 at Z with an engaging element;
FIG. 3 shows the connector pair of FIG. 1 in a first intermediate position during the plug-in operation;
FIG. 4 shows the connector pair of FIG. 1 in a second intermediate position during the plug-in operation;
FIG. 5 shows the connector pair of FIG. 1 in the plugged-in condition;
FIG. 6 shows the connector pair of FIG. 1 in a first intermediate position during disconnecting; and
FIG. 7 shows the connector pair of FIG. 1 in a second intermediate position during disconnecting.
The drawings illustrate a connector pair, the plug and receptacle of which are designed as round plug-in connectors. The princi
REFERENCES:
patent: 3848950 (1974-11-01), McCormick et al.
patent: 4017139 (1977-04-01), Nelson
patent: 5011424 (1991-04-01), Simmons
patent: 5082455 (1992-01-01), Wei
Jost Werner
Wittwer Gunter
Contact GmbH Elektrische Bauelemente
Nguyen Khiem
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