Electrical connectors – Contact comprising cutter – Insulation cutter
Patent
1996-05-30
1999-12-07
Vu, Hien
Electrical connectors
Contact comprising cutter
Insulation cutter
439 52, H01R 1362, H01R 2900
Patent
active
059973382
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a conductor joint, comprising a conductor or wire connector for providing a galvanic joint between the connector and flat metal-strip conductors surrounded by an insulating sheath. Such a conductor joint is used for the supply of electricity into a conductor or the delivery of electricity from a conductor or for a joint between conductors required in the branching or extension of a wire.
The invention relates also to a tool and a method for making a conductor joint.
A wire connector or a conductor joint of the invention is especially intended for use in a new type of electric harness included in vehicles, particularly in automobiles, for supplying power to signal lamps, headlights or other electrical equipment of a vehicle. However, the invention is not limited to any given application. Another exemplary application includes community lighting systems.
The electric harnesses of automobiles and vehicles in general have been traditionally designed in such a manner that separate wires extend to the service points like signal lamps and headlights through operating switches and fuses. All signal and warning lights are also provided with separate wires which extend between a power source transducer and a light source. A result of this is that the electric harnesses included in automobiles make up a labour-intensive and quite expensive element in an automobile. Another problem is the defect sensitivity of such electric harnesses, which is due to a large number of joints between conductors and various components as well as to the fact that the conductors have an enormous total length, causing a significant possibility of short circuits e.g. as a result of attrition. The locating of contact faults and short circuits and the mending of defects in such electric harnesses is a tedious process.
International Patent application WO93/10591 discloses an improved system, wherein the signal lamps and other such electrically operated items are connected in parallel to one or just a few wires, whose conductor is provided with a code for the controlled operation of lamps and other such actuators. The lamp or the lamp socket is provided with necessary electronics for identifying an operation control code intended for a relevant lamp or some other actuator. This system is capable of substantially simplifying an automobile electric harness for essentially reduced total costs and susceptibility to defects.
SUMMARY OF THE INVENTION
An object of this invention is to provide a novel type of wire connector or conductor joint, which is especially suitable for use in a wiring system the same as or similar to the wiring system disclosed in the cited Patent publication WO 93/10591 in a manner that the contact faults can be practically eliminated from conductor joints.
A further object of the invention is to provide a wire connector, whose internal coding can be used for assigning various functions to signal lamps, which are even identical to each other or different only in terms of power ranges.
BRIEF DESCRIPTION OF THE DRAWING
The invention will now be described in more detail by means of exemplary embodiments with reference made to the accompanying drawings, in which
FIG. 1 shows a wire connector of the invention in a cut-away view (one half of the housing is omitted) when using the connector between a wire 1 and a lamp 12;
FIG. 2 shows the wire connector of FIG. 1 in a section along the line II--II in FIG. 1;
FIG. 3 shows an enlarged detail included in the connector of FIG. 2 at a connector pin 9 extending through a conductor 2;
FIG. 3A shows a sharpened point 10 included in the connector pin 9 and viewed in the direction of the pin;
FIGS. 4 and 4A illustrate alternative connector embodiments intended for wire branching operations;
FIG. 4B shows the application of a connector of the invention in a disconnectable extension connector; and
FIG. 5 shows a tool for using an alternative wire connector of the invention or for making a conductor joint.
DETAILED DESCRIPTION O
REFERENCES:
patent: 2745078 (1956-05-01), Wood, Jr.
patent: 3213404 (1965-10-01), Hedstrom
patent: 3713072 (1973-01-01), Henschen et al.
patent: 4259778 (1981-04-01), Greenwood
patent: 4941843 (1990-07-01), Block et al.
patent: 5044964 (1991-09-01), Minerd et al.
patent: 5368490 (1994-11-01), McKissick
Oy IWS International Inc.
Vu Hien
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