Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – For receiving coaxial connector
Reexamination Certificate
2002-01-04
2003-11-18
Bradley, P. Austin (Department: 2833)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
For receiving coaxial connector
C439S582000
Reexamination Certificate
active
06648653
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a connector, and particularly to a super mini coaxial microwave connector, which provides a receptacle part soldered to a circuit board.
2. Description of Related Art
A soldered super mini sized connector available in the market has a receptacle part
10
as shown in FIG.
1
and the bottom of the receptacle part
10
is soldered to a circuit board in a notebook computer, a personal digital assistant, or a mobile phone. The plug part
20
of the connector fits with the receptacle part
10
as shown in FIG.
2
and another end of the plug part
20
can be connected to, for example, an antenna of the mobile phone via a signal line for signal transmission. The receptacle part
10
has a metal connector body
11
and the lower end of the connector body
11
is in conjunction with an insulator
12
. The insulator
12
extends into the connector body
11
and provides a central protrusion end
121
such that a male terminal
13
is arranged in the protrusion end
121
. The male terminal
13
at the lower end
131
thereof provides a shape of flat plate and at the upper end
132
thereof provides a shape of tube with an arc end
133
. The plug part
20
has a metal casing
21
associated with an insulator
22
. The insulator
22
has a hollow part
221
associated with a female terminal
23
as shown in FIG.
3
. The female terminal
23
is composed of two opposite contacts
231
spacing apart each other with a little distance. As soon as the plug part
20
fits with the receptacle part
10
, the two contacts
231
of the female terminal
23
on the insulator
22
are inserted into both lateral sides of the male terminal
13
to allow two signal ends being in a state, of communicating with each other. Further, the metal casing
21
surrounds the connector body
11
and engages with the connector body
11
to allow two grounding ends in a state of communicating with each other. Because the male terminal
13
contacting with the female terminal
23
is a line contact and it is not possible to constitute a firm contact actually. When the circuit board in the electronic product is moved or swung by the user during the electronic product being in use, it may result in a worse quality of signal transmission easily because of an unsteady contact between the two terminals or result in a disconnection of signal because of the two terminals being fallen apart.
Referring to
FIGS. 4 and 5
, when the receptacle part is made, male terminals
13
on a male terminal blanking band
130
are placed in central hollow space of connector bodies
11
on a connector body blanking band
110
as shown in FIG.
5
. Then, the blanking bands
110
,
130
are placed in a mold to form insulators
12
between the male terminals
13
and the connector bodies
11
respectively by way of plastic material being injected into the mold. Finally, the receptacle part
10
shown in
FIGS. 6 and 7
can be obtained after the lower ends
131
and the connecting plates
111
being cut apart the blanking bands. The connecting plates
111
of the receptacle part
10
are used for holding the connector bodies
11
. Two guide pieces
112
extend from the bottom of the respective connector body
11
and are used for being soldered to the circuit board as grounding. The respective connecting plate
111
extending beyond the respective insulator
12
may touch neighboring electronic parts to occur short circuit easily during setting up the microwave connector. Further, the sharp edges resulting from the cut connecting plates may hurt the fingers of the worker during assembling the connector. Referring to
FIG. 5
again, the connector bodies
11
connect with the blanking band
110
via the connecting plates
111
only so that the connector bodies
11
may deviate from the original positions thereof during injection molding the insulators
12
and the male terminals are not possible to be located at the center of the respective connector body
11
so that it is easy to cause a lot of undesirable defectives. Moreover, the connector body may be subjected to a unidirectional force during the connecting plates being cut such that the connector body
11
becomes deformed easily to increase the defectives.
Referring to
FIGS. 2 and 8
, while the plug part
20
is in assembling, the female terminal
23
and the coaxial line (not shown) in company with the insulator
22
are placed into a central hole
211
of the casing
21
perpendicularly. Then, the inner lead wire in the coaxial line is soldered to or clamped at the upper plate
232
on the female terminal
23
. Because the upper plate
232
does not provide any stop piece so that it is hard to control the length of the inner lead wire for being joined to the upper plate
232
and it is hard to solder the inner lead wire to the upper plate
232
steadily. If the inner lead wire is clamped at the upper plate
232
, it is very possible for the inner lead wire being away the upper plate
232
easily to disable the signal transmission as soon as the circuit board is swung or moved.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a super mini coaxial microwave connector, which is possible to be fabricated easily and can lower down the defective rate of product and the production cost respectively.
Another object of the present invention is to a super mini coaxial microwave connector, which offers a structure for the male terminal joining the female terminal steadily so as to enhance the quality of signal transmission.
REFERENCES:
patent: 3771111 (1973-11-01), Pritulsky
patent: 5772470 (1998-06-01), Togashi
patent: 6474995 (2002-11-01), Wu
patent: 6503100 (2003-01-01), Yamane
patent: 6508668 (2003-01-01), Yamane
Chen Sung-Wen
Huang Tung-Liang
Bradley P. Austin
Insert Enterprise Co., Ltd.
Nguyen Phuongchi
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