Retaining and fixing structure of interface card

Details Retaining and fixing structure of interface card Retaining and fixing structure of interface card

2001-07-17

2002-11-12

Martin, David (Department: 2841)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C361S796000, C361S689000, C361S740000, C312S223200

Reexamination Certificate

active

06480392

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a retaining and fixing structure of an interface card and, more particularly, to a retaining and fixing structure used in an interface card of a mainframe to facilitate maintenance, replacement, or expansion of interface card for a user.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a prior art fixing structure of interface card of a mainframe comprises a computer housing
10
, which has a plurality of slots
11
thereon. A plurality of interface cards
14
can be inserted and received in the plurality of slots
11
. Screw holes
12
are disposed beside the slots
11
. Screws
13
can match the screw holes
12
to penetrate through and fix the interface cards
14
and spacers
15
. The spacers
15
can block leakage of electromagnetic waves.
Each of the spacers
15
has a plurality of resilient sheets
16
thereon. When the interface cards
14
are inserted and received in the slots
11
, the resilient sheets
16
can tightly contact the interfaces
14
and block leakage of electromagnetic waves.
As shown in
FIG. 1
, if a user needs not to use the slots
11
or only needs to use part of them for insertion of a few of the interface cards
14
, the slots
11
without the interface cards
14
inserted can be covered with cover plates
17
. The cover plates
17
can be screwed with a plurality of screws
13
to prevent dust from entering into the slots
11
to affect normal operation of the mainframe, The cover plates
17
can also block leakage of electromagnetic waves.
The above prior art structure needs to use a screwdriver to perform assembly work. However, because the volume of the present screwdriver is small, if the user misses the screwdriver, the assembly work cannot be performed.
Or if the applied force is too large when the screws
13
are screwed, the screws
13
will easily crumble so that the screws
13
will idle and cannot be screwed tightly. It is necessary to replace the screws to perform the action of screwing, hence wasting resources and increasing assembly cost.
Accordingly, the above fixing structure of interface card of a mainframe has inconvenience and drawbacks in practical installation or use. The present invention aims to resolve the problems in the prior art.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a retaining and fixing structure of interface card, whereby a screwdriver is not needed when assembling an interface card, and there is no trouble of crumbling of screws, hence avoiding waste of resources and saving assembly cost.
The secondary object of the present invention is to provide a retaining and fixing structure of interface card, whereby professional tools are not needed when assembling or disassembling an interface, hence shortening time of maintenance, replacement, expansion, and assembly of interface card and conforming to time-saving requirement.
To achieve the above objects, the present invention provides a retaining and fixing structure of interface card comprising a leaf, a retaining structure, and a connection unit. One side of the leaf forms a pivot and can be pivotally joined with a pivotal portion inside a computer housing to facilitate rotation of the leaf in the pivotal portion. The retaining structure can be integrally formed with the leaf, or can be joined with the leaf by means of tin soldering, hard soldering, supersonic soldering, or resistance soldering. The retaining structure can be joined with the connection unit. A first and a second press devices can be used to let the retaining structure and the connection unit be quickly unlocked or joined together, hence facilitating maintenance, replacement, or expansion of interface card in a mainframe for a user, and shortening time of maintenance, replacement, expansion, and assembly of interface card.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing, in which:


REFERENCES:
patent: 6138839 (2000-10-01), Cranston et al.
patent: 6215668 (2001-04-01), Hass et al.
patent: 6231139 (2001-05-01), Chen

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