Electrical connectors – Electromagnetic or electrostatic shield – Shielding individually surrounding or interposed between...
Reexamination Certificate
2000-10-20
2001-10-09
Patel, Tulsidas (Department: 2839)
Electrical connectors
Electromagnetic or electrostatic shield
Shielding individually surrounding or interposed between...
Reexamination Certificate
active
06299482
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a digital connector retaining device, and especially to digital connector can improve yield ratio greatly.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a prior art digital connector is illustrated. The digital connector includes an insulating body
10
a,
a metal casing
11
a,
two buckles
12
a,
two positioning piece
13
a,
and two retaining pieces
14
a.
The insulating body
10
a
is made of plastics and other insulating materials, and two sides thereof each are installed with a through hole
15
a
for receiving the two retaining pieces
14
a.
The metal casing
11
a
is an iron casing and made by punching. The metal casing is installed in front of the insulating body
10
a.
Two sides of the metal casing
11
a
are installed with through holes
16
a
which is correspondent to the through holes
15
a
of the insulating body
10
a.
The two buckles
12
a
are installed at two sides of the insulating body
10
a.
The upper end of each buckle
12
a
is formed with a through hole
17
a.
The two positioning pieces
13
a
each are installed with a through hole
18
a.
The two retaining pieces
14
a
are matched to the through holes
16
a,
15
a,
17
a,
and
18
a
of the metal casing
11
a,
insulating body
10
a,
two buckles
12
a
and two positioning pieces
13
a.
The front end and rear end of the two retaining pieces
14
a
are riveted so that the front end and rear end of the retaining piece
14
a
are connected to the metal casing
11
a
and positioning piece
13
a
by riveting connection. Thus, the insulating body
10
a,
metal casing
11
a,
two buckles
12
a
and two positioning pieces
13
a
are firmly secured as an integral body. Thereby, the metal casing
11
a
and two buckles
12
a
are fixed to the insulating body
10
a.
The lower end of each two buckles
12
a
has a buckling portion
19
a
for being engaged to the circuit board. The metal casing
11
a
covers on the outer side of the inserting portion
20
a
of the insulating body
10
a.
Two screw means
21
a
serve to be screwedly connected within the two retaining pieces
14
a
for being fixed to the front end of the metal casing
11
a.
A plurality of channels
22
a
are installed within the insulating body
10
a.
Each channel
22
a
is matched with a conductive terminal (not shown). The lower end of the conductive terminal protrudes out of the bottom of the insulating body
10
a
so as to be electrically connected to a circuit board.
However, in aforesaid prior art digital connector, as the two retaining pieces
14
a
are connected to the metal casing
11
a
and positioning pieces
13
a
by riveting connection, a stress force will generate so that the outer portions
23
a
of two through holes
15
a
of the insulating body
10
a
will crack and thus the yield ratio of the product is decreased greatly. Therefore, the manufacturing cost can not be reduced. If it is want to avoid this event, it is needed to increase the thickness of the outer portion
23
a
of two through holes
15
a,
but this will cause that the whole width and volume of the connector are increased. Other than more plastic materials are required, it remain not to meet the requirement of compact of current trend.
SUMMARY OF THE INVENTION
Accordingly, the primary object of the present invention is to provide a digital connector retaining device, wherein at least one notch is installed at one end of the retaining post for removing stress force in rivet connection so that it can effectively prevent the outer lateral portions of the two through holes of the insulating body from cracking. Therefore, the yield ratio of the product is increased and the manufacturing cost is reduced.
Another object of the present invention is to provide a digital connector retaining device, wherein the outer lateral portions of the two through hole of the insulating body suffer from no stress force force and thus it is impossible to crack out. Therefore, it is unnecessary to increase the thickness of the outer lateral portions of the two through holes. Thus, the thickness of the outer lateral portions of the two through hole can be reduced so that the width and volume of the connector is decreased. Therefore, the material required is saved. A compact design is achieved.
A further object of the present invention is to provide a digital connector retaining device, wherein the metal casing is made of zinc-aluminum alloy material without rusting and thus it may suffer from a heavy load and is difficult to be damaged. Furthermore, the metal casing is made of injection molding without bending, and deforming. Furthermore, it has a better precision. Accordingly, the quality of the products is improved.
To achieve the aforesaid object, the present invention provides a digital connector retaining device comprising an insulating body, a metal casing and two buckles. The insulating body has two sides each formed with a through hole. A plurality of conductive terminals are installed within the insulating body and one end of the conductive terminal protrudes out of the insulating body. The metal casing installed at a front side of the insulating body. Two sides of the metal casing each are formed with a retaining post. A through hole is installed within the retaining post. A rear end thereof is formed with at least one notch; and the metal casing covers on the insulating body. The two buckles are installed at two sides of the insulating body. Each of the buckles is installed with a through hole. The two retaining posts of the metal casing are matched to the two through holes of the two buckles; and rear ends of two retaining posts are combined with the buckles by riveting connection. In the present invention, at least one notch is installed at one end of the retaining post for removing stress force in rivet connection so that it can effectively prevent the outer lateral portions of the two through holes of the insulating body from cracking. Therefore, the yield ratio of the product is increased and the manufacturing cost is reduced.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
REFERENCES:
patent: 5288244 (1994-02-01), Lien
patent: 5800207 (1998-09-01), Hsu et al.
patent: 6146201 (2000-11-01), Chen
Patel Tulsidas
Rosenberg , Klein & Lee
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