Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
1998-12-07
2001-06-12
Picard, Leo P. (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S689000, C361S689000, C361S727000, C165S122000, C312S107000
Reexamination Certificate
active
06246579
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an electronic component e.g., a hard disk drive cooling structure for use in a computer to dissipate heat from a hard disk drive, for example, installed therein, and more particularly to such a hard diskdrive cooling structure which achieves high cooling efficiency and, is inexpensive to manufacture.
When a computer is operated, heat must be quickly carried away from important parts of the computer such as a CPU (central processing unit), hard disk drive, etc. The working temperature of a hard disk drive is within about 5~55° C. When the working temperature surpasses 55° C., the hard disk drive may become unable to function well, and stored data may be destroyed. In order to maintain the optimum working temperature for a hard disk drive, a cooling arrangement is needed.
FIG. 6
shows the arrangement of an earlier hard disk drive cooling structure. According to this design, a plurality of fans
70
are provided adjacent to the hard disk drive
60
. When the computer is started, the fans
70
are operated to blow currents of air toward the hard disk drive
60
. Because the fans
70
are installed in the computer at one lateral side, currents of air are directly blown toward the front side of the hard disk drive
60
, causing a high wind resistance force to be produced; in consequence, thereof the cooling efficiency is low. Further, due to the size limitation of 42 mm x 149 mm, only three fans of size 40 mm x 40 mm can be installed. Because three fans are installed, the installation cost is high.
SUMMARY OF THE INVENTION
It is one object of the present invention to provide an electronic component, e.g., a hard disk drive cooling structure which achieves high cooling efficiency.
It is another object of the present invention to provide a hard disk drive cooling structure which is inexpensive to manufacture.
It is still another object of the present invention to provide a hard disk drive cooling structure which can be alternatively installed between two positions to blow cooling air toward the top side or bottom side of the hard disk drive as desired.
According to one aspect of the present invention, the hard disk drive cooling structure comprises a rack installed in a computer to hold a hard disk drive, the rack having an open chamber, which holds a fan motor and a tangential flow fan coupled to the fan motor, and air vents in communication with the open chamber, a wire gauze filter covering the air vents of the rack, and a fan guard covering the open chamber of the rack, the fan guard having air vents in communication with the air vents of the rack and a flow guide for guiding currents of air from the air vents toward the hard disk drive carried on the rack.
According to another aspect of the present invention, the rack can be installed in the computer between a first position where the air vents of the fan guard are disposed at the top side for guiding currents of air into the open chamber of the rack from the top side, or a second position where the air vents of the fan guard are disposed at the bottom side for guiding currents of air into the open chamber of the rack from the bottom side.
REFERENCES:
patent: 4296455 (1981-10-01), Leaycraft et al.
patent: 4644443 (1987-02-01), Swensen et al.
patent: 4754397 (1988-06-01), Varaiya et al.
patent: 5171183 (1992-12-01), Pollard et al.
patent: 5412534 (1995-05-01), Cutts et al.
patent: 5493457 (1996-02-01), Kawamura et al.
patent: 5761032 (1998-06-01), Jones
patent: 5772500 (1998-06-01), Harvey et al.
Bushnell , Esq. Robert E.
Datskovsky Michael
Global Win Technology Co., Ltd.
Picard Leo P.
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