Electrical connectors – Having circuit interrupting provision effected by mating or...
Reexamination Certificate
2000-05-10
2001-05-08
Sircus, Brian (Department: 2839)
Electrical connectors
Having circuit interrupting provision effected by mating or...
C439S668000, C439S944000
Reexamination Certificate
active
06227889
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to electric connectors, and more specifically to a telecommunication switching connector.
FIGS. 9 and 10
show a telecommunication switching connector for use in a telecommunication switching system to switch the transmission of signal. This structure of telecommunication switching connector comprises a shell A, the shell A having a locating rods A
1
and a terminal receiving groove A
2
, a tubular signal terminal A
3
installed in the terminal receiving groove A
2
, and three metal spring plates A
4
respectively mounted in the shell A and supported on the locating rods A
1
. Before insertion of a plug connector B into the telecommunication switching connector, the rear metal spring plate A
4
and the intermediate metal spring plate A
6
are disposed in contact with each other, forming a first transmission loop. After insertion of a plug connector B into the telecommunication switching connector, the rear metal spring plate A
4
is forced away from the intermediate metal spring plate A
6
, and the front metal spring plate A
5
is forced into contact with the intermediate metal spring plate A
6
, forming a second transmission loop. This structure of telecommunication switching connector is still not satisfactory in function. The main drawback of this structure of telecommunication switching connector is that simply using the locating rods to support the metal spring plates cannot keep the metal spring plates firmly in place, and the metal spring plates tend to be forced out of place upon insertion of a plug connector into the telecommunication switching connector, causing a signal transmission error.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide a telecommunication switching connector, which eliminates the aforesaid problem. According to one aspect of the present invention, the telecommunication switching connector is constructed to include a base holding a first metal spring plate, a second metal spring plate and a third metal spring plate at one lateral side and a tubular signal terminal on the middle, a cover covered on the base to hold the metal spring plates and the tubular signal terminal, wherein the first metal spring plate, the second metal spring plate and the third metal spring plate are disposed in contact with one another, forming a first transmission loop before insertion of a plug connector into the telecommunication switching connector; the third metal spring plate is forced away from the second metal spring plate and form with the first metal spring plate a second transmission loop after insertion of a plug connector into the telecommunication switching connector and contact of the central signal terminal of the inserted plug connector with the tubular signal terminal. According to another aspect of the present invention, the base comprises a groove, and a plurality of spring plate mounting holes spaced in the groove, which receive the metal spring plates respectively; the cover has a plurality of bottom positioning rods respectively inserted into the spring plate mounting holes to hold down the metal spring plates in the respective spring plate mounting holes.
REFERENCES:
patent: 4633048 (1986-12-01), Komatsu
patent: 4937404 (1990-06-01), Kitagawa
patent: 5338215 (1994-08-01), Lee et al.
patent: 5893767 (1999-04-01), Broschard, III
patent: 6056602 (2000-05-01), Wu
patent: 6077126 (2000-06-01), Peng
Advanced Optronics Corporation
Bushnell , Esq. Robert E.
Le Thanh-Tam
Sircus Brian
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