Electrical connectors – With coupling separator – Nonconducting pusher
Reexamination Certificate
1999-03-24
2001-01-30
Sircus, Brian (Department: 2839)
Electrical connectors
With coupling separator
Nonconducting pusher
Reexamination Certificate
active
06179636
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electric connector, and especially to a holding means of an electric connector, wherein a guide groove, a pivotal hole and a fixing inclined surface are installed on the inner lateral wall surface of the embedding seat for fixing an embedding piece so that the embedding piece can be inserted into the embedding seat from a predetermined orientation, and the embedding piece is only rotated within the predetermined angle, and the smoothness of the outer lateral wall surface of the terminal seat is retained and the connecting terminals can be firmly secured to the terminal seat.
2. Background of the Invention
In the field of electrically connectors, an electric connector for electric connecting a circuit board and the mother board of a computer is included. The approximate structure is shown in
FIGS. 1A and 1C
. This kind of electric connector includes a terminal seat
100
, a plurality of terminal holes
120
a
on the bottom of the terminal seat
100
along the longitudinal direction of the terminal seat. Each of the terminal holes serves to receive a terminal
120
b
. Two ends of the terminal seat are installed with respective embedding seats
130
. The bottom of the embedding seat is installed with a fixing device (not shown, referring to relative figures ) for fixing an electric connector to a mother board; When the terminal seat
100
contacts with the mother board (not shown ) by the fixing means on the bottom thereof, the terminal
120
b
of the terminal hole
120
a
on the bottom of the terminal seat
100
will contact with the circuit trace of the mother board and an electrical connection is achieved.
In a prior art electric connector, because of the differences of molds and shaping, an apparent trench
110
a
and a pivotal hole
110
b
through the wall surface will be formed on the outer wall surface
110
of the terminal seat. Although the trench
110
a
and the pivotal hole
110
b
serves to easily separate the electric connector and the mold, the completeness of the outer wall surface
110
of the insulating housing is potentially reduced. Moreover, on the inner wall surface of the embedding seat
130
is not installed with inclined surfaces for confining the rotation of the embedding piece so that the embedding piece
200
is probable to rotate to a large angle. As a result, the embedding piece
200
and the embedding seat are destroyed.
FIG. 1C
is a terminal holder of a prior art electric connector. The terminal hole
120
a
is a long hole with a fixed width, and the width of the hole is greatly larger than the thickness of the terminal body. Therefore, as a user arranges a terminal seat
100
in a mother board (not shown), the terminal with a very thin thickness is probable shifted and vibrated since the terminal seat
100
is moved by the user and the terminal hole
120
a
can not firmly secure the terminal, further, the terminal can not effectively contact the mother board. Besides, in that electric connector, in order to effectively improve the function of the terminal hole to fixing the terminal, a clamping piece
140
must be installed on the edge of the terminal hole. Accordingly, further fabrication process and mold are necessary.
Another object of the present invention is to provide an electric connector, wherein an inclined angle is formed between the pair of inner inclined surfaces of the embedding seat so that the embedding piece only rotates within a predetermined angle, so as to prevent the embedding piece to be broken due to a large rotary angle.
A further object of the present invention is to provide an electric connector, wherein the pivotal hole is installed within the embedding seat but does not penetrate through the wall surface of the electric connector so that the completeness of the outer lateral surface of the terminal seat is retained, and the probability of destroying the housing is reduced.
A further object of the present invention is to provide an electric connector, wherein the guide groove on the embedding seat is formed with a predetermined angle with the buckling piece, so that the embedding piece is embedded into the embedding seat from a fixing orientation.
A further object of the present invention is to provide an electric connector, wherein, two ends of the terminal hole on the bottom of the terminal seat are extended for clamping the holding hole so that the terminal can be held securely.
The other object of the present invention is to provide an electric connector, wherein an inverse hook is formed on the outer edge of a terminal. When a terminal is inserted into a terminal hole, the terminal will tightly engage with the wall of the holding hole so that the terminal is firmly secured within the terminal seat.
Accordingly, since the prior art electric connectors have many defects, there is an eager demand for a novel designed electric connector which can improve the aforementioned disadvantages.
SUMMARY OF THE INVENTION
Accordingly, the object of the present invention is to provide an electric connector comprising a terminal seat, a plurality of terminals, two embedding seats, and two embedding pieces. The terminal seat is made of insulating material, two sides of the terminal seat are installed with U shape embedding seats, the inner lateral wall surfaces of the embedding seats are installed with guide grooves for being embedded by the embedding pieces, respectively. The two embedding seats are symmetrical with one another. The inner lateral wall surface of the embedding seat is installed with a pivotal hole which does not penetrate through the wall surface of the embedding seat so that the completeness of the lateral wall of the embedding seat is retained. The wall surface of the pivotal hole is inclined so that the embedding piece is successfully embedded into the hole. A plurality of inclined surfaces are formed on the inner wall of the embedding seat, which are conformed with the reduced inclined surface of the embedding piece for confining the rotary angle of the embedding piece. A fixing device is installed in a place near the edge of the bottom of the embedding seat with a proper distance so as to fix the terminal seat in a mother board. The embedding piece has an approximate rectangular shape and is pivotally connected to the embedding seat; each side of the two sides of each embedding piece is installed with a pillar; the lateral surface of each pillar is formed with an inclined angle so that it can be easily embedded into a pivotal hole. Besides, the pillar also serves as the rotary axis of the embedding piece. A buckling piece is formed on the embedding piece near the upper portion of the pillar and with respect to the pivotal hole of the embedding seat. The buckling piece and the guide groove on the inner lateral surface of the embedding seat are formed with a fixed angle to guide the embedding piece to embed into the embedding seat. A plurality of reduced inclined surfaces are formed on the inner lateral wall surface of the embedding piece, conforming with the inclined surfaces on the inner lateral wall surface of the embedding seat, the rotary angle of the embedding piece is confined so to prevent that the embedding piece and the wall surface of the embedding seat are destroyed due to a large rotary angle. A pulling portion is installed on the top portion of the embedding piece so that the embedding piece is easily pulled to rotate.
The shape and structure of bottom of the terminal seat according to the present invention has the function of fixing a terminal, so that during installing the electric connector, the terminal will not be destroyed and the electric connection between the terminal and the mother board will not be affected. Besides, further fabrication process of the housing of the terminal seat are unnecessary, while the same effect as the prior art clamping piece of the terminal housing is achieved. The edges of two sides of terminal are installed with inverse hook, after the terminal is embedded into the termina
Dinh Phuong KT
Dougherty & Troxell
Sircus Brian
Starlink Electronics Corp.
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