Electrical connectors – Contact comprising cutter – Insulation cutter
Reexamination Certificate
2000-11-14
2001-07-24
Nguyen, Khiem (Department: 2839)
Electrical connectors
Contact comprising cutter
Insulation cutter
C439S701000
Reexamination Certificate
active
06264494
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an electric cable and connector arrangement and, more particularly, to such an electric cable and connector arrangement, in which harness means is installed in the data transmission cable to hold the electric wires in a row so that the electric wires can accurately and quickly be installed in respective wire grooves on of the wire distribution plate of the electric connector.
FIG. 1
shows an electric cable and connector arrangement for data transmission according to the prior art. According to this arrangement, the electric connector, referenced by
10
′, comprises a housing
20
′ defining a receiving chamber
22
′, a wire distribution plate
40
′, a holding-down plate
44
′, and a connector head
50
′. The cable, referenced by
30
′, is inserted from the rear side of the housing
20
′ into the receiving chamber
22
′, comprising a set of electric wires
32
′, and an aluminum foil layer
38
′ embedded within the outer insulative layer thereof and wrapped on the electric wires
32
′. The wire distribution plate
40
′ and the holding-down plate
44
′ each have a plurality of wire grooves
48
′ respectively arranged at the top or bottom side. The electric wires
32
′ of the cable
30
′ are respectively mounted in the wire grooves
48
′ of the wire distribution plate
40
′ and the holding-down plate
44
′. The holding-down plate
44
′ is fastened to the wire distribution plate
40
′ to hold down the electric wires
32
′ of the cable
30
′ in the wire grooves
48
′. The wire-distribution plate
40
′ comprises a plurality of pin holes
42
′. The holding-down plate
44
′ comprises a plurality of bottom pins
46
′ respectively press-fitted into the pinholes
42
′ of the wire distribution plate
40
′. The connector head
50
′ comprises a set of contact pins
51
′ for power and data signal transmission. The contact pins
51
′ each have a sharp, notched bottom mounting end adapted for connecting to the conductor of each electric wire
32
′ of the cable
30
′. After the holding-down plate
44
′ and the wire distribution plate
40
′ had been fastened together to hold down the electric wires
32
′ of the cable
30
′, the connector head
50
′ is fastened to the housing
20
′ and covered on the receiving chamber
22
′ to force the contact pins
52
′ against the electric wires
32
′, and therefore the sharp, notched bottom end of each contact pin
52
′ pierces the insulator of each electric wire
32
′ of the cable
30
′ to achieve a respective electric contact. This cable and connector arrangement still has drawbacks as outlined hereinafter:
1. Because the electric wires
32
′ go off in different directions after the outer insulator and aluminum foil layer
39
of the cable
30
′ had been cut off at a distance, it takes much time to arrange the electric wires
32
′ in the wire grooves
48
′ of the wire distribution plate
40
′ and the holding-down plate
44
′, and the electric wires
32
′ may be erroneously arranged in wrong positions.
2. The complicated procedure of the arrangement of the electric wires
32
′ affects the speed of the processing work and the quality of the finished product.
3. After connection of the connector head
50
′ to the housing
20
′, an additional encapsulation or fixation procedure is required to fixedly secure the housing
20
′ and the connector head
50
′ together.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide an electric cable and connector arrangement, which eliminates the aforesaid drawbacks. It is one object of the present invention to provide an electric cable and connector arrangement, which keeps the electric wires of the cable in a row for quick installation. It is another object of the present invention to provide an electric cable and connector arrangement, which keeps the electric wires of the cable in a line so that the electric wires can be accurately positioned without causing a contact error. According to one aspect of the present invention, a harness is fastened to the electric wires of the data transmission cable to hold the electric wires in a row, for enabling the electric wires to be quickly arranged in respective wire grooves of a wire distribution plate of the electric connector. Because the electric wires of the data transmission cable is held in a row by the harness, the electric wires can be accurately arranged in the respective wire grooves in the wire distribution plate and the holding-down plate of the electric connector. According to another aspect of the present invention, the housing of the electric connector comprises two plugholes longitudinally arranged in parallel, and the connector head of the electric connector has two bottom mounting legs respectively plugged into the plugholes of the housing by force. After press-fitting the mounting legs of the connector head into the plugholes of the housing, the electric connector is well assembled, and no additional encapsulation procedure is needed.
REFERENCES:
patent: 5766033 (1998-06-01), Davis
patent: 6174195 (2001-01-01), Yang
patent: 6179644 (2001-01-01), Adams et al.
patent: 6210204 (2001-04-01), Ko et al.
Nguyen Khiem
Rosenberg , Klein & Lee
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