Telecommunication main distribution frame structure

Details Telecommunication main distribution frame structure Telecommunication main distribution frame structure

2001-04-26

2002-05-14

Gandhi, Jayprakash N. (Department: 2841)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

Frame

C361S772000, C361S788000, C439S061000

Reexamination Certificate

active

06388895

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention is related to a telecommunication main distribution frame structure in which one PC board is used for connection of multiple sets of telephones so as to minimize the volume of the structure. In addition, one half of the numerous insertion pins for connecting with the telephones are saved to facilitate the use of the main distribution frame.
FIG. 1
shows a conventional telecommunication main distribution frame structure employing PC board, including a first PC board
10
, a second PC board
20
, several pairs of insertion pins
30
, four insertion seats
60
, four buses
70
, four corresponding insertion seats
80
connected with one end of the buses
70
and four connectors
90
connected with the other end of the buses
70
. The central portion of the first PC board
10
is formed with multiple copper-plated insertion holes
11
arranged into a square matrix. The upper and lower sections of one side are formed with multiple pairs of copper-plated soldering holes
13
arranged into two rows to form soldering section
12
for the insertion seat. The copper-plated soldering holes
13
are electrically connected with the calculated copper-plated insertion holes
11
. The central portion of the second PC board
20
is formed with multiple copper-plated insertion holes
21
arranged into a square matrix. The left and right sections of one side are formed with multiple pairs of copper-plated soldering holes
23
arranged into two rows to form soldering section
22
for the insertion seat. The copper-plated soldering holes
23
are electrically connected with the calculated copper-plated insertion holes
21
. The insertion pin
30
is a cylindrical pin made of well conductive metal and having a certain length. The insertion pin
30
has such a diameter that the insertion pin can be snugly inserted into the copper-plated insertion holes
11
of the first PC board
10
and the copper-plated insertion holes
21
of the second PC board
20
.
When assembled, as shown in
FIG. 2
, the four insertion seats
60
are first respectively soldered on the soldering sections
12
,
22
of the first and second PC boards
10
,
20
. Then, the corresponding insertion seats
80
of the buses
70
are inserted into the insertion seats
60
. The connectors
90
of the buses
70
inserted in the first PC board
10
are inserted in an exchange. The connectors
90
of the buses
70
inserted in the second PC board
20
are connected with a telephone. Then, one end of each pair of insertion pins
30
is inserted into the copper-plated insertion holes
11
of the first PC board
10
, while the other end is inserted into the corresponding copper-plated insertion holes
21
of the second PC board
20
(with reference to FIG.
3
). The selection of the copper-plated insertion holes
11
,
21
is calculated to achieve effective copper-plated insertion holes
11
,
21
for a number of telephones to use. In the case that the telephones are one time increased, another group is added.
The above structure has some shortcomings as follows:
1. The conventional telecommunication main distribution frame structure includes a first PC board
10
and a second PC board
20
for exchange use. The first and second-PC boards
10
,
20
are spaced from each other by a certain distance so that the main distribution frame has a considerably large volume and will occupy much room.
2. Each telephone necessitates two insertion pins
30
which are inserted in the first and second PC boards
10
,
20
. An exchange often has numerous lines so that a great number of insertion pins
30
will be necessary. Accordingly, the use of the main distribution frame is complicated and troublesome.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a telecommunication main distribution frame structure in which one PC board is used for connection of multiple sets of telephones. In the case of more sets of telephones, only another main distribution frame is added. Therefore, the components are reduced and the volume of the structure is minimized without occupying much room.
It is a further object of the present invention to provide the above telecommunication main distribution frame structure in which one insertion pin serves to connect with one telephone so as to save one insertion pin. In the case that the exchange includes numerous lines, a half of numerous insertion pins can be saved and the use of the main distribution frame can be facilitated
The present invention can be best understood through the following description and accompanying drawings wherein:


REFERENCES:
patent: 4802862 (1989-02-01), Seidler
patent: 5009387 (1991-04-01), Scott et al.
patent: 5381306 (1995-01-01), Schumacher et al.
patent: 6086386 (2000-07-01), Fjelstad et al.
patent: 6137064 (2000-10-01), Kiani et al.

Affiliated with

Also associated with

Rating

Telecommunication main distribution frame structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telecommunication main distribution frame structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telecommunication main distribution frame structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2817263