Electrical connectors – With coupling separator – Including retainer or joiner
Patent
1993-05-03
1995-01-31
Desmond, Eugene F.
Electrical connectors
With coupling separator
Including retainer or joiner
H01R 13629
Patent
active
053858700
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a detachable electrical plug connection, particularly for connecting a cable harness with an engine control device in a motor vehicle.
In particular, it relates to such a plug connection which has a spring connector and a blade connector with a locking mechanism drawing the contact of the blade connector into the contact of the spring connector.
When producing electrical plug connections it is desirable that the part designated as the female plug connector or spring connector may be easily connected with a male plug connector part, also known as a blade connector. In so doing, it is essential that the forces to be applied for producing the plug connection are not so great as to prevent the connection from being produced manually. On the other hand, the force required for separation must also not be too great so that the electrical plug connection can also be detached again without the help of tools.
Finally, the plug connection should also hold together securely and make contact during vibrations. Plug connections are known in which e.g. approximately 90 contacts are closed and in which the spring connector is brought into contact with the blade connector by a swiveling movement. However, this results in a relatively large lift region, i.e. a considerable amount of space is required for producing or detaching the plug connection. Also, the cable harness connected with the spring connector must be provided with a so-called bending loop or guard so that the bending strain on the cable to be guided into the spring connector is not excessive. Finally, it is disadvantageous that only blade contacts can be used in such plug connections.
Plug connections in which the two plug-connector parts are engaged by a parallel movement are also known. However, this has proven disadvantageous in that a relatively great expenditure of force is required to produce the electrical connection.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a detachable electrical plug connection which avoids the disadvantages of the prior art.
In keeping with these objects and with others which will become apparent hereinafter, one feature of the present invention resides, briefly stated, in a detachable electrical plug connection in which the locking mechanism has a locking lever at a part of the plug connection, which locking lever can be swiveled around a point of rotation, is provided with a projection and cooperates with a connecting link provided on the other part of the plug connection.
When the detachable electrical plug connection is designed in accordance with the present invention, it is advantageous compared to the prior art on the one hand in that it ensures a parallel insertion of the two plug connector parts so as to avoid the aforementioned disadvantages with respect to the swiveling connection of two plug connector parts. On the other hand, it ensures a detachable electrical connection which is comfortable, i.e. can be produced with a relatively small expenditure of force, and reliable and is used particularly for producing electrical connections between cable harnesses and an engine control device. It is especially advantageous precisely for this purpose in that it ensures a reliable contacting which is easy both to produce and detach.
It is possible to limit the forces required for producing and detaching in that a locking mechanism with a locking lever is provided on a part of the plug connection. The length and lever ratios of the locking lever can easily be adapted to the occurring forces. The locking lever is provided with a projection which cooperates with a connecting link provided on the complementary part of the electrical plug connection. Thus, the locking mechanism can be realized in a simple and accordingly inexpensive manner. Moreover, it is practically trouble-free.
In a particularly preferred embodiment form of the plug connection the connecting link has a stop bevel which swivels the locking lever out of a
REFERENCES:
patent: 3488622 (1970-01-01), Gley
patent: 3534320 (1970-10-01), Rushing
patent: 3575685 (1971-04-01), Gley
patent: 4035634 (1991-07-01), Hasircoglu et al.
patent: 4307505 (1981-11-01), Jozens
Gansert Willi
Heide Thomas
Hofmeister Werner
Maue Hans-Heinrich
Desmond Eugene F.
Robert & Bosch GmbH
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