Electrical connectors – With vitreous-type envelope – Having bayonet-coupling contact
Reexamination Certificate
2002-02-11
2003-06-24
Gilman, Alexander (Department: 2833)
Electrical connectors
With vitreous-type envelope
Having bayonet-coupling contact
C439S607070, C439S357000, C439S362000, C439S160000
Reexamination Certificate
active
06582252
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector, and particularly to an electrical connector for termination of a cable and having a printed circuit board mounted therein, where the cable termination connector must accomplish a tight bend between the line of the cable and the line of the mating of the connector.
2. Description of the Related Art
Cables used for high speed applications must be very well shielded. One typical kind of cable has a number of wires included inside the cable jacket, each wire having a differential pair of signal conductors and a metallic shield around the pair of signal conductors. The metallic shield tends to make each wire very rigid and difficult to bend. This causes various routing problems when trying to connect a connector terminating the wires in a tight space.
One prior art connector for terminating a high speed cable at a right angle is shown in
FIGS. 11-12
. The connector
100
has a conductive shell
101
. A dielectric insert
109
with a plurality of terminals
102
mounted therein is engaged within a slot (not labeled) through the shell
101
. Forward ends (not labeled) of the terminals
102
project forward into the shell
101
for mating with a mating connector (not shown), and rearward ends (not labeled) of the terminals project rearward for soldering to pads (not shown) on a forward end of a printed circuit board (PCB)
103
. A plurality of shielded wires
104
from a cable
105
is threaded through a spacer
106
. Each wire has a pair of conductors
107
with a wire mesh shield (not labeled) covering the pair of conductors. The conductors
107
are soldered to pads (not labeled) on a rear end of the PCB
103
and the wires
104
in the cable
105
are bent at a 90 degree angle prior to overmolding of a dielectric boot
108
around the cable
105
, the spacer
106
, the PCB
103
, and the shell
101
. The tight bend required by this design can be difficult to produce because of the stiffness of the shielded wires
104
. More importantly, the wire mesh shield may be damaged during the bending operation or during use in the field, adversely affecting the electrical performance of the cable.
Therefore, a solution to the above problems is desired.
SUMMARY OF THE INVENTION
A first object of the present invention is to provide an electrical cable termination connector which accomplishes a right angle bend while preventing sharp bending of the wires being terminated.
A second object of the present invention is to provide an electrical cable termination connector which accomplishes a right angle bend and which is easily manufactured.
An electrical cable termination connector in accordance with the present invention is designed to terminate stiff, shielded wires in a cable. The termination connector comprises a conductive front shell, a terminal insert comprised of a dielectric body and a plurality of terminals mounted in the dielectric body, a printed circuit board, a dielectric spacer holding wires of the cable being terminated, a conductive back shell, a pair of latches, and a dielectric boot.
The printed circuit board has a first edge and a second edge positioned at right angles to one another. A plurality of first solder pads along the first edge is electrically connected to a plurality of second solder pads along the second edge by traces in the printed circuit board. The insert is engaged with the front shell and the printed circuit board is fitted in a rear of the front shell. Terminals in the insert connect to the first solder pads. The wires are threaded through the spacer, which holds the wires in fixed relation to one another, making the inspection and manufacturing of the cable termination connector easier. Conductors in the wires are connected to the second solder pads. The back shell is assembled to cover the spacer, the printed circuit board, and a rear portion of the front shell. The latches assemble over the back shell and protrude into a mating cavity of the front shell for engaging with a mating connector. The boot is overmolded to cover the back shell, parts of the front shell and latches, the exposed wires, and an end of the cable. The design of the connector allows the cable to be connected to a mating connector oriented 90 degrees to the longitudinal axis of the cable, without the wires of the cable having to bend appreciably. This prevents signal degradation resulting from the wire being damaged by bending.
REFERENCES:
patent: 4838808 (1989-06-01), Fujiura
patent: 5364292 (1994-11-01), Bethurum
patent: 5522727 (1996-06-01), Saito et al.
patent: 6083031 (2000-07-01), Kuo
patent: 6454577 (2002-09-01), Yi
Chung Wei Te
Gilman Alexander
Hon Hai - Precision Ind. Co., Ltd.
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