Double contact element

Details Double contact element Double contact element

2000-03-30

2001-08-14

Paumen, Gary (Department: 2833)

Electrical connectors

With insulation other than conductor sheath

Insulating body with spaced, electrically interconnected,...

C439S851000

Reexamination Certificate

active

06273764

ABSTRACT:

The invention relates to a double contact element with a terminal element, wherein the double contact element consists of two contact elements connected to one another, the contact elements are axially aligned and at their rear end sides are electrically conductively connected by appropriately formed connecting means, and at the connection point a terminal element provided with a terminal for electric conductors is inserted.
The connection of electric consumers to a supply line is currently effected in different ways depending upon the field of use. In the International Protection
20
sector, for example in a switchgear cabinet, wire jumpers are used for the connection of modules. The connection is established mainly via screw terminals which at the same time either belong directly to the consumer or are connected thereto via cables.
In sectors with a higher degree of protection, for example International Protection
54
sector and upwards, plug connectors or cables combined with heavy-gauge screw couplings lead into the consumers and out again. The branching within the consumer then takes place directly, possibly with the aid of terminal blocks inside the device.
Disadvantages of the above described approaches reside in the strong possibility of processing faults (screw terminals), non detachability (wire jumpers) and in the wiring outlay and assembly in pluggable systems.
GB 2 011 192 A has disclosed a double contact element whose contact elements are connected to one another at their end sides via connecting means. Here the connecting means are provided with a terminal element comprising a terminal for an electric conductor.
In addition, from DE 29 38 133 A1 it is known to provide the end of a contact element with a compression-type socket into which the end of a conductor is insertable and in the case of which the conductor is connected to the contact element upon the compression of the socket.
The object of this invention is to develop a double contact element of the type referred to in the introduction in that the contact element is composed of simple components which can be produced cost-effectively.
This object is achieved in that the one contact element is provided with a rivet post and the other contact element is provided with a corresponding bore into which the rivet post is insertable, that the terminal element is provided at one end with a bore through which the rivet post extends, and that the two contact elements are riveted to one another after the insertion of the terminal element.
The advantages attained by means of the invention consist in particular in that the electrical and mechanical connection between the two plug contacts of the double contact elements and a terminal element is established without the use of additional connecting elements. Here the entire connection establishment takes place in one operating step.
Such contact elements in the form of double contacts and comprising a terminal element can be used in industry for the connection of consumers, current sources and electronic assemblies. Electrically, the branching takes place in parallel to the conductor run extending between the two individual contacts connected to one another via a rivet connection.
The conductor run is looped through via the double contact.
Exemplary embodiments of the invention are illustrated in the drawings and will be described in detail in the following.
FIG. 1
is a diagram of a double contact element;
FIG. 2
is a diagram of the double contact element according to
FIG. 1
in an exploded view;
FIG. 3
is a diagram of a modified double contact element;
FIG. 4
is a partial view of the terminal showing a plug terminal;
FIG. 5
is a partial view of the terminal element showing a solder terminal;
FIG. 6
is a view of the terminal element showing an insulation piercing terminal;
FIG. 7
is a partial view of the terminal element showing a rivet terminal;
FIG. 8
shows a circuit board press-in terminal; and
FIG. 9
shows a terminal element with a riveting zone for the attachment by rivets of other electrical branching elements.


REFERENCES:
patent: 2147915 (1939-02-01), Morris
patent: 3099510 (1963-07-01), Piorunneck
patent: 3374456 (1968-03-01), Evans
patent: 3852700 (1974-12-01), Haws
patent: 4133599 (1979-01-01), Powell
patent: 4921456 (1990-05-01), French
patent: 4988311 (1991-01-01), Tanzola
patent: 5725400 (1998-03-01), Morikawa et al.
patent: 5944563 (1999-08-01), Nagafuji

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