Electrical connectors – Miscellaneous
Reexamination Certificate
1999-12-13
2001-04-24
Bradley, Paula (Department: 2833)
Electrical connectors
Miscellaneous
C439S892000, C439S752000, C029S739000, C029S758000
Reexamination Certificate
active
06220903
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates to the structure of a board-to-board connector, and in particular, to a plastic housing structure for a board-to-board connector.
(b) Description of the Prior Art
As shown in
FIGS. 1 and 3
, there is shown a conventional plastic housing
1
having a sliding recess
10
for the horizontal mounting of an angular board
11
. The inner wall at the two sides of the sliding recess
10
is provided with a protruded lug
14
, and the angular board
11
is provided with parallel rows of holes
12
for the mounting of the entire row of guiding pins
13
. The protruded lug
14
of the sliding recess
10
provides appropriate clipping to the gliding pins
13
. As shown in
FIG. 3
, the bottom surface of the plastic housing
1
of the connector is provided with three protruded boards
15
arranged in a row. There is a gap formed in between the individual protruded board
15
for the mounting of the guiding pins
13
.
FIGS. 2 and 4
show the application of the above structure. The connector is mounted onto a circuit board, and the guiding pins
13
and the circuit board are soldered together by soldering process. Next, a cleaning process is applied and the plastic housing
1
is removed. In view of the first structure, in the process of removing the plastic housing
1
, a force is exerted centrally onto the sides of the plastic housing
1
to cause the protruded lug
14
to release the urging force exerted onto the guiding pins
13
, and the plastic housing
1
is then smoothly lifted up. In the second structure, the removal of the plastic housing
1
is by the use of robotic arm or it is manually lifted up.
In application, the above conventional structures have the following drawbacks.
1) In the first structure, the angular board has to be mounted horizontally and this is difficult to attain and time-consuming for the reason that the plastic housing and the angular board are very small in size.
2) In the first structure, if the plastic housing is to be lifted up from the circuit board to separate from the guiding pins, a force has to be exerted to the sliding recess. This force is difficult to keep balance and the guiding pins cannot be smoothly separated.
3) In the second structure, the guiding pins are clipped by the force between the boards, if the clipping force is too great, the guiding pins and the plastic housing may not be smoothly separated. If the clipping force is too small, the guiding pins may be dislocated during the soldering process.
SUMMARY OF THE PRESENT INVENTION
Accordingly, it is an object of the present invention is to provide a plastic housing for board-to-board connector, which allows rapid and easy separation of the plastic housing and the entire row of the guiding pins, such that all the guiding pins remain onto the circuit board when the plastic housing is lifted up.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 4394795 (1983-07-01), Goss
patent: 4396245 (1983-08-01), Lane
patent: 5373626 (1994-12-01), Youngfleish
patent: 5439400 (1995-08-01), Kozel et al.
A & J
Bradley Paula
Cvilux Corporation
Ta Tho D.
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