Electrical connectors – Contact comprising cutter – Insulation cutter
Patent
1998-10-13
2000-09-19
Bradley, Paula
Electrical connectors
Contact comprising cutter
Insulation cutter
439402, H01R 424
Patent
active
061203165
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a cable connector, as is known for example from DE 42 14 711 C 1 in a multipin version. In this connector the contacts are produced as economical stampings, a process that accomplishes part bending, automatic core feed, and reliable contact without stray strands from stranded wires. On the other hand, the contacts are suited only for one-time mounting, since they are bent in the contact carrier and would be damaged when forcibly removed to break the core contact. In addition, only cable cores of a defined diameter which corresponds to the clamping slot width can be connected by this fixed design. A special cable connector is required for each cable size.
In addition, the contacts must be inserted radially over their entire length in the contact carrier which must have correspondingly large openings for this purpose; this poses major difficulties in injection-molded versions, or requires additional sealing measures.
Last but not least, as a result of their integral design the contacts cannot be optimally configured with respect to material choice and material cost, so that only a compromise between the most favorable properties of the insulation-piercing connecting device and plug-in contact can be achieved.
Among mass products such as connectors, the increased costs associated with the above-indicated properties can generally not be tolerated in a multipin design.
SUMMARY OF THE INVENTION
An object of the invention is to develop a cable connector in which the contacts can be used as easily and economically as possible for different core diameters and the cable connector can also be injection molded at low cost. In doing this the initially described advantages of the cable connector known from DE 42 14 711 C1 will be preserved.
This object is achieved by the characterizing features of the invention. The two-part structure, i.e. separation of the plug-in contact part and insulation piercing connecting device part, allows the two parts to be easily separated from one another. If necessary, the insulation piercing connecting device parts, which have variously wide insulation-piercing connecting device slots for making contact with cable cores of different core diameters, can be inserted through the recess in the terminal-side end of the plug-in contact part. When using the cable connector for cables with different core diameters, only the insulation-piercing connecting device parts are made as slides and not all the contacts need be replaced.
The plug-in contact part can be placed securely and tightly in the contact carrier, which makes the connector design of the invention especially well suited for extrusion coating because no coating material can reach the plug-in contact area of the contact carrier. For this reason, and in contrast to the prior art, no additional sealing measures need be taken. Therefore, the same contact carrier can be used to produce either a preassembled or extrusion coated cable connector, thus reducing warehouse requirements.
Advantageous embodiments of the invention are cited in the dependent claims.
By making a recess, good guidance of the contact plate can be achieved. It is further improved by a support surface which projects into the interior of the contact carrier at roughly 90 degrees from the lower edge of the recess. The contact plate to be actuated as a slide, without requiring special attention of the installer, thus meets the cable core with which contact is to be made at roughly a right angle, so that optimum contact-making is ensured because the cable core thus penetrates into the contact slot as far as the stipulated position.
The production costs of this support surface are especially low if it is formed by simple punching and pressing out from the terminal-side end part of the plug-in contact part.
The two clamp legs formed by the insulation piercing connecting device slot are also somewhat elastic transversely to the insulation piercing connecting device slot and therefore can be pressed together somewhat on the free ends. This property is
REFERENCES:
patent: 4648676 (1987-03-01), Carrell
patent: 5000698 (1991-03-01), Kuzuno et al.
patent: 5112244 (1992-05-01), Kuzuno et al.
patent: 5129840 (1992-07-01), Kuzuno et al.
patent: 5399097 (1995-03-01), Sakai et al.
Allgaier Bernhard
Hagmann Bernd
Bradley Paula
Gilman Alexander
Richard Hirschmann GmbH & Co.
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