Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2001-12-27
2003-03-25
Tolin, Gerald (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C024S457000, C257S718000, C361S704000
Reexamination Certificate
active
06538893
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a securing device for a locking member of a CPU heat dissipating element, and more particularly, a securing device for a locking member of a CPU heat dissipating element that allows the locking member to be easily secured to the main board of a computer.
To dissipate the heat produced by a CPU when it is working, a heat dissipating element is used, which includes many radiating fins and a flat bottom side. The heat dissipating element is disposed on top of the CPU fitted on the main board of a computer such that the heat produced by the CPU can travel to the radiating fins.
Referring to
FIGS. 7 and 8
, a heat dissipating element
50
of a CPU is provided with a locking member; the locking member includes a base part
40
and two securing parts
60
. The base part
40
has through holes
401
at four corners thereof, and two pairs of opposing engaging portions
403
sticking up from the edges thereof. The engaging portions
403
each has a through hole. The securing parts
60
each has a straight portion and two hooked engaging portions at two ends thereof.
The main board
10
of a computer is formed with four through holes
101
around the CPU
20
fitted thereto, each corresponding to one of the through holes
401
of the base part
40
.
A securing device
30
is provided for securing the base part
40
of the locking member in position. The securing device
30
has a shape substantially like an X, and connecting poles
301
sticking up on end portions thereof; the connecting poles
301
each has a screw hole.
The base part
40
can be secured to the main board
10
with the connecting poles
301
being passed through the through holes
101
and the through holes
401
of the base part
40
from the bottom of the main board
10
and with screws
402
being screwed into the screw holes of the connecting holes
301
. Thus, the heat dissipating element can be firmly locked between the base part
40
and the securing parts
60
by means of connecting the hooked engaging portions of the securing parts
60
to the engaging portions
403
of the base part
40
so as to press the straight portion of the securing parts
60
against the top of the heat dissipating element
50
.
However, the locking member has a drawback that the base part
40
thereof has to be secured in position by means of using a screwdriver to screw the screws
402
into the four corners, costing relatively much labor and time in the assembly.
SUMMARY OF THE INVENTION
Therefore, it is a main object of the present invention to provide a securing device such that the locking member of a heat dissipating element of a CPU can be easily fixed in position.
It is another object of the present invention to provide a securing device for the locking member that can ground the CPU to dissipate electromagnetic waves produced by the CPU.
The securing device for a locking member of a heat dissipating element of a CPU includes four engaging members and a main body.
The engaging members each has several inwardly sticking and upwardly bent sharp engaging parts, which have a gap in between. The engaging members each further has several outwardly sticking and upwardly bent sharp engaging parts; the outwardly sticking sharp engaging parts engage with annular walls of recesses on a base of the locking member to secure the engaging members to the base. The base has a through hole on the center of each of the recesses thereof. The locking member further has several securing parts removably connected to the base thereof to lock the heat dissipating element on the base. The locking member is disposed on the main board for the heat dissipating element to come into contact with the CPU.
The main body has connecting poles sticking up thereon, and truncated cone-shaped parts on the top of each of the connecting poles; engaging trenches are formed between bottoms of the cone-shaped parts and the tops of the connecting poles. The main body is disposed under the main board with the truncated cone-shaped parts being each passed through the through holes of the base to allow the inwardly sticking engaging parts to engage with the engaging trenches so as to secure the base of the locking member to the main board.
REFERENCES:
patent: 5894408 (1999-04-01), Stark et al.
patent: 6141220 (2000-10-01), Lin
patent: 6243266 (2001-06-01), Lo
patent: 6313993 (2001-11-01), Hinshaw et al.
patent: 6480388 (2002-11-01), Lee et al.
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