Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – Distinct contact secured to panel circuit
Reexamination Certificate
2000-12-19
2001-11-20
Patel, Tulsidas (Department: 2839)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
Distinct contact secured to panel circuit
Reexamination Certificate
active
06319021
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector, and particularly to a power connector which can establish a reliable connection between a pin and terminals thereof.
2. Brief Description of the Prior Art
U.S. Pat. No. 5,055,055, shown in
FIG. 7
, discloses a conventional power connector
200
. The power connector
200
comprises a conductive body
217
, a dielectric shell
215
surrounding the conductive body
217
, a plurality of contacts
220
, a metal band
216
, and a metallic pin
218
retained in the conductive body
217
.
A passage
222
longitudinally extends through the conductive body
217
for receiving the metal band
216
. The metal band
216
surrounds and inwardly presses against a portion of the pin
218
, which, together with the metal band
216
, is received in the passage
222
. Since the metal band
216
is resilient, the pin
218
is allowed to float within the metal band
216
. After a large number of insert/withdraw cycles, the resilience of the metal band
216
will decrease. Accordingly, the pin
218
will float in a larger range than the designed range, particularly when the connector
200
is under conditions of vibration.
U.S. Pat. No. 5,807,120 discloses another conventional power connector
300
as shown in
FIGS. 8 and 9
. The connector
300
provides an insulative shell
314
, a dielectric alignment member
318
, a metal band
316
, and an arcuate conductive strip
322
integral with a plurality of soldering tails
317
extending from a lower portion of lateral sides of the conductive strip
322
for insertion into a printed circuit board (not shown). The metal band
316
gradually narrows from opposite outer ends
316
a
to a middle portion thereof. The arcuate conductive strip
322
receives and connects with the metal band
316
within which a metallic pin (not shown) is inserted, for establishing an electrical connection between the metallic pin and the printed circuit board.
FIG. 9
shows a partially assembled view of the conventional power connector
300
. An inner wall
314
a
of the shell
314
downwardly presses against a top portion of the arcuate conductive strip
322
and a middle portion
318
a
of the alignment member
318
, located between the two rows of soldering tails
317
, upwardly abuts against a bottom portion of the metal band
316
. By such design, the arcuate conductive strip
322
electrically contacts with the metal band
316
at positions of upper portions of the ends
316
a
of the metal band
316
. The contact area of the upper portions, i.e.the opposite ends
316
a,
is not large enough for a power connector, which requires large contact area for transmitting current.
Hence, an improved electrical connector is required to overcome the disadvantages of the prior art.
BRIEF SUMMARY OF THE INVENTION
A first object of the present invention is to provide a power connector which has a conductive pin reliably mounted in a conductive body of the connector;
A second object of the present invention is to provide a power connector which has a plurality of terminals offering large contact area at which the terminals electrically connect with the conductive body.
To achieve the above-mentioned objects, a connector in accordance with the present invention includes a conductive main body, a dielectric shell surrounding the main body, a metal pin extending through the main body and protruding from the shell, and two rows of terminals secured at lateral sides of the main body.
The main body defines a longitudinally extending channel to form upper and lower walls in each lateral side thereof. A plurality of first and second passageways are respectively defined in the upper and lower walls. The first and second passageways extend perpendicularly to a corresponding channel and are aligned in a one-to-one manner.
The terminals of each row interconnect with each other at retention portions thereof and are contained substantially in a plane, except for stems and projections of the terminals, which project from the plane inwardly and outwardly, respectively. The terminals are received in the corresponding passageways in such a way that each stem projects inward into the corresponding channel and abuts against an abutting surface of the main body. The projections each tightly abut against an outward side of the corresponding passageway, thereby forcing the stem to reliably press against the main body and enlarging the contact area between the terminals and the main body.
The pin forms knurls around a rear member thereof for an interferential engagement with a longitudinal passage of the main body. Thereby, the pin is reliably fixed in the passage of the main body.
Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 4749357 (1988-06-01), Foley
patent: 5055055 (1991-10-01), Bakker
patent: 5145408 (1992-09-01), Houtteman et al.
patent: 5984696 (1999-11-01), Lee
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Patel Tulsidas
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