Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – Within distinct housing spaced from panel circuit arrangement
Reexamination Certificate
1999-01-27
2001-04-24
Bradley, Paula (Department: 2833)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
Within distinct housing spaced from panel circuit arrangement
C439S079000
Reexamination Certificate
active
06220872
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a modular power supply and more particularly to a power supply having standard structure and is engageable with various connectors.
2. Description of the Prior Art
The main function of a power supply in the art is to convert alternate current electricity (AC) from a power source into direct current electricity (DC) for powering electric or electronic devices desired. Generally, conventional power supplies may be categorized into a two-port power supply
10
as shown in
FIG. 1A and a
three-port power supply
20
as shown in FIG.
1
B. However, both types of the power supplies are usually constructed similarly, including respectively a first and a second lower cases
11
and
21
, a first and a second upper cases
12
and
22
, a first and a second circuit boards
13
and
23
housed in a space formed between the lower and the upper cases, a first and a second wire openings
15
and
25
for connecting with an electrical device desired and a first and a second socket openings
16
and
26
for connecting with an external AC source. The main difference of above two types of power supplies is based on that the power supply
10
in
FIG. 1A
uses a first two-port socket
14
, whereas the power supply
26
FIG. 1B
uses a first three-port socket
24
.
The first two-port socket
14
has a pair of spaced first terminals
141
engageable with a pair of first terminal bores
131
formed in the first circuit board
13
and a first two-port cavity
142
for connecting with a two-port type of connector to an AC source.
The second three-port socket
24
has a pair of spaced second terminals
241
engageable with a pair of second terminals bores
231
formed in the second circuit board
23
, a second ground terminal
242
engageable with a second ground bore
232
in the second circuit board
23
and a second three-port cavity
243
for connecting with a three-port type of connector to an AC source.
The key difference between the two-port power supply
10
and the three port power supply
20
is the absence or existence of the ground terminal. To meet that difference, different toolings have to be set up for production. Thereby, the cost of production and maintenance is inevitably increased, and also the difference results in an interchangeable problem, which becomes an annoyance to most users.
SUMMARY OF THE INVENTION
In view of aforesaid disadvantages, it is therefore an object of the present invention to provide a modular power supply consisting of standard components for reducing production cost.
It is another object of the present invention to provide a modular power supply that has a pair of standard terminal seats, which are engageable with various types of sockets such as a two-port socket without a ground terminal, a three-port socket with a ground terminal, or a coaxial socket.
It is a further object of the present invention to provide a modular power supply that is able to use different types of output sockets such as two-port, three-port or coaxial type to meet different shapes of AC connectors.
The modular power supply according to the present invention aims at converting AC power. It includes a casing, a circuit board and a plural number of connectors.
The casing includes an upper case engageable with a lower case to form an accommodation space in between for housing the circuit board.
The circuit board has a wire opening at one end for engaging with an electrical device desired and a socket opening at another end, in which has a pair of two-polarity terminal seats and a ground seat formed therein. The pair of the terminal seats are spaced by a predetermined interval.
The connectors may include a two-port socket, a three-port socket, and a coaxial socket, for forming different types of AC connector. Each aforesaid socket has two terminals with a spacing of the predetermined interval.
Each socket has a cavity assessable from outside of the casing to serve as power outlet for coupling with AC sources. The terminal and ground seats may be formed in bore shape. The ground seat may be located between the terminal bores at the same side or at an opposite side to form an overhead connector to suit devices desired.
REFERENCES:
patent: 5772453 (1998-06-01), Tan et al.
patent: 5788511 (1998-08-01), Burnworth et al.
patent: 5954523 (1999-09-01), Babcock
Bradley Paula
Delta Electronics
Ta Tho D.
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