U.S. patent application number 14/696495 was filed with the patent office on 2016-10-27 for heat dissipating device and heat dissipating fin.
The applicant listed for this patent is Cooler Master Co., Ltd.. Invention is credited to Shih-Yi Chang, Tung-Yang Shieh.
Application Number | 20160313067 14/696495 |
Document ID | / |
Family ID | 57147537 |
Filed Date | 2016-10-27 |
United States Patent
Application |
20160313067 |
Kind Code |
A1 |
Shieh; Tung-Yang ; et
al. |
October 27, 2016 |
HEAT DISSIPATING DEVICE AND HEAT DISSIPATING FIN
Abstract
A heat dissipating device includes a heat dissipating fin and a
heat pipe. The heat dissipating fin includes a fin body, a through
hole, a first arc-shaped portion and a second arc-shaped portion.
The through hole is formed on the fin body and has a central line.
The first arc-shaped portion extends from the through hole in a
first direction and the second arc-shaped portion extends from the
through hole in a second direction, wherein the first direction is
opposite to the second direction. The first arc-shaped portion and
the second arc-shaped portion are located at opposite sides of the
central line. The heat pipe is disposed in the through hole.
Inventors: |
Shieh; Tung-Yang; (New
Taipei City, TW) ; Chang; Shih-Yi; (New Taipei City,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Cooler Master Co., Ltd. |
New Taipei City |
|
TW |
|
|
Family ID: |
57147537 |
Appl. No.: |
14/696495 |
Filed: |
April 27, 2015 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F28F 1/32 20130101; F28D
15/0275 20130101 |
International
Class: |
F28D 15/02 20060101
F28D015/02 |
Claims
1. A heat dissipating device comprising: a heat dissipating fin
comprising a fin body, a through hole, a first arc-shaped portion
and a second arc-shaped portion, the through hole being formed on
the fin body and having a central line, the first arc-shaped
portion extending from the through hole in a first direction, the
second arc-shaped portion extending from the through hole in a
second direction, the first direction being opposite to the second
direction, the first arc-shaped portion and the second arc-shaped
portion being located at opposite sides of the central line; and a
heat pipe disposed in the through hole.
2. The heat dissipating device of claim 1, wherein a radian of the
first arc-shaped portion and a radian of the second arc-shaped
portion both are between 15 degrees and 345 degrees.
3. The heat dissipating device of claim 1, wherein the first
arc-shaped portion and the second arc-shaped portion are
symmetrically located at opposite sides of the central line.
4. The heat dissipating device of claim 1, further comprising a
base, the heat dissipating fin being disposed on the base, the heat
pipe having a heat dissipating end and a heat absorbing end, the
heat dissipating end being opposite to the heat absorbing end, the
heat dissipating end being disposed in the through hole, the heat
absorbing end being fixed on the base.
5. A heat dissipating fin comprising: a fin body; a through hole
formed on the fin body and having a central line; a first
arc-shaped portion extending from the through hole in a first
direction; and a second arc-shaped portion extending from the
through hole in a second direction, the first direction being
opposite to the second direction, the first arc-shaped portion and
the second arc-shaped portion being located at opposite sides of
the central line.
6. The heat dissipating fin of claim 5, wherein a radian of the
first arc-shaped portion and a radian of the second arc-shaped
portion both are between 15 degrees and 345 degrees.
7. The heat dissipating fin of claim 5, wherein the first
arc-shaped portion and the second arc-shaped portion are
symmetrically located at opposite sides of the central line.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention relates to a heat dissipating device and a
heat dissipating fin and, more particularly, to a heat dissipating
fin having two arc-shaped portions located at opposite sides of a
through hole and a heat dissipating device equipped with the heat
dissipating fin.
[0003] 2. Description of the Prior Art
[0004] Heat dissipating device is a significant component for
electronic products. When an electronic product is operating, the
current in circuit will generate unnecessary heat due to impedance.
If the heat is accumulated in the electronic components of the
electronic product without dissipating immediately, the electronic
components may get damage due to the accumulated heat. Therefore,
the performance of heat dissipating device is a significant issue
for the electronic product.
[0005] So far the heat dissipating device used in the electronic
product usually consists of a heat pipe, a heat dissipating fin and
a heat dissipating fan, wherein one end of the heat pipe contacts
the electronic component, which generates heat during operation,
the other end of the heat pipe is connected to the heat dissipating
fin, and the heat dissipating fan blows air to the heat dissipating
fin, so as to dissipate heat. In the prior art, there are two
methods for connecting the heat pipe and the heat dissipating fin,
as follows. The first method is to fix the heat pipe in a through
hole of the heat dissipating fin directly in a tight-fitting
manner. However, when the heat pipe is inserted into the through
hole by the first method, the heat pipe and the heat dissipating
fin may pull and drag each other, such that a surface of the heat
pipe may be scratched, the heat dissipating fin may deform or the
through hole may crack. Accordingly, the yield rate of the first
method is low. The second method is to connect the heat pipe and
the through hole of the heat dissipating fin in a loose-fitting
manner, wherein a thermal conductive adhesive or a solder paste is
filled in a gap between the heat pipe and the heat dissipating fin.
The second method has to form a groove on each of the heat
dissipating fins to communicate with the through holes and then
fill the thermal conductive adhesive or the solder paste in the
groove. Afterward, the heat pipe is inserted into the through hole.
Then, the thermal conductive adhesive or the solder paste are
heated to be converted form solid into liquid and then cooled to be
converted form liquid into solid, such that the thermal conductive
adhesive or the solder paste is filled in the gap between the heat
pipe and the heat dissipating fin. However, the process of the
second method is complicated and additional thermal conductive
adhesive or solder paste may be remained on the heat dissipating
fin, such that the appearance is not good and the thermal impedance
increases accordingly. Furthermore, the manufacturing time is long,
so the manufacturing efficiency is low.
SUMMARY OF THE INVENTION
[0006] The invention provides a heat dissipating fin having two
arc-shaped portions located at opposite sides of a through hole and
a heat dissipating device equipped with the heat dissipating fin,
so as to solve the aforesaid problems.
[0007] According to an embodiment of the invention, a heat
dissipating device comprises a heat dissipating fin and a heat
pipe. The heat dissipating fin comprises a fin body, a through
hole, a first arc-shaped portion and a second arc-shaped portion.
The through hole is formed on the fin body and has a central line.
The first arc-shaped portion extends from the through hole in a
first direction and the second arc-shaped portion extends from the
through hole in a second direction, wherein the first direction is
opposite to the second direction. The first arc-shaped portion and
the second arc-shaped portion are located at opposite sides of the
central line. The heat pipe is disposed in the through hole.
[0008] According to another embodiment of the invention, a heat
dissipating fin comprises a fin body, a through hole, a first
arc-shaped portion and a second arc-shaped portion. The through
hole is formed on the fin body and has a central line. The first
arc-shaped portion extends from the through hole in a first
direction and the second arc-shaped portion extends from the
through hole in a second direction, wherein the first direction is
opposite to the second direction. The first arc-shaped portion and
the second arc-shaped portion are located at opposite sides of the
central line.
[0009] As mentioned in the above, the invention forms two
arc-shaped portions at opposite sides of the through hole of the
heat dissipating fin. An operator may insert the heat pipe into the
through hole of the heat dissipating fin and then punch the two
arc-shaped portions at opposite sides of the through hole. After
punching the two arc-shaped portions, the two arc-shaped portions
fix the heat pipe in a tight-fitting manner. Accordingly, the
invention can connect the heat pipe and the heat dissipating fin
tightly and improve the yield rate and the efficiency of
manufacturing the heat dissipating device.
[0010] These and other objectives of the present invention will no
doubt become obvious to those of ordinary skill in the art after
reading the following detailed description of the preferred
embodiment that is illustrated in the various figures and
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a perspective view illustrating a heat dissipating
device according to an embodiment of the invention.
[0012] FIG. 2 is a perspective view illustrating the heat
dissipating device shown in FIG. 1 from another viewing angle.
[0013] FIG. 3 is a perspective view illustrating the heat
dissipating fin shown in FIG. 1.
[0014] FIG. 4 is a perspective view illustrating the heat
dissipating fin shown in FIG. 3 from another viewing angle.
DETAILED DESCRIPTION
[0015] Referring to FIGS. 1 to 4, FIG. 1 is a perspective view
illustrating a heat dissipating device 1 according to an embodiment
of the invention, FIG. 2 is a perspective view illustrating the
heat dissipating device 1 shown in FIG. 1 from another viewing
angle, FIG. 3 is a perspective view illustrating the heat
dissipating fin 10 shown in FIG. 1, and FIG. 4 is a perspective
view illustrating the heat dissipating fin 10 shown in FIG. 3 from
another viewing angle.
[0016] As shown in FIGS. 1 and 2, the heat dissipating device 1 of
the invention comprises a plurality of heat dissipating fins 10, a
plurality of heat pipes 12 and a base 14, wherein the number of the
heat dissipating fins 10 and the number of the heat pipes 12 can be
determined according to practical applications and are not limited
to the embodiment shown in FIGS. 1 and 2. The heat dissipating fin
10 comprises a fin body 100, a plurality of through holes 102, a
plurality of first arc-shaped portions 104 and a plurality of
second arc-shaped portions 106, wherein the number of the through
holes 102, the number of the first arc-shaped portions 104 and the
number of the second arc-shaped portions 106 can be determined
according to the number of the heat pipes 12 and are not limited to
the embodiment shown in FIGS. 1 and 2.
[0017] As shown in FIGS. 3 and 4, the through hole 102 is formed on
the fin body 100 and has a central line C. The first arc-shaped
portion 104 extends from the through hole 102 in a first direction
D1 and the second arc-shaped portion 106 extends from the through
hole 102 in a second direction D2, wherein the first direction D1
is opposite to the second direction D2. In other words, the first
arc-shaped portion 104 and the second arc-shaped portion 106 are
formed at opposite sides of the through hole 102. Furthermore, the
first arc-shaped portion 104 and the second arc-shaped portion 106
are located at opposite sides of the central line C.
[0018] The heat pipe 12 has a heat dissipating end 120 and a heat
absorbing end 122, wherein the heat dissipating end 120 is opposite
to the heat absorbing end 122. It should be noted that the
structure and the principle of the heat pipe 12 are well known by
one skilled in the art, so the related explanation will not be
depicted herein.
[0019] To assemble the heat dissipating device 1, an operator may
fix the heat dissipating fins 10 on the base 14 by welding,
engaging or other manners first. Afterward, the operator may insert
the heat dissipating end 120 of the heat pipe 12 into the through
hole 102 of the heat dissipating fin 10 and fix the heat absorbing
end 122 of the heat pipe 12 on the base 14 by welding, engaging or
other manners . Then, the operator may punch the first arc-shaped
portion 104 and the second arc-shaped portion 106 formed at
opposite sides of the through hole 102. After punching the first
arc-shaped portion 104 and the second arc-shaped portion 106, the
first arc-shaped portion 104 and the second arc-shaped portion 106
fix the heat pipe 12 in a tight-fitting manner. Accordingly, the
invention can connect the heat pipe 12 and the heat dissipating fin
10 tightly and improve the yield rate and the efficiency of
manufacturing the heat dissipating device 1.
[0020] In this embodiment, a radian of the first arc-shaped portion
104 and a radian of the second arc-shaped portion 106 both may be
between 15 degrees and 345 degrees. Preferably, the radian of the
first arc-shaped portion 104 and the radian of the second
arc-shaped portion 106 both may be 180 degrees. In other words, the
first arc-shaped portion 104 and the second arc-shaped portion 106
both may be semi-circles, such that the first arc-shaped portion
104 and the second arc-shaped portion 106 may clamp the heat pipe
12 more tightly after the punching process. It should be noted that
the radian of the first arc-shaped portion 104 may be identical to
or different from the radian of the second arc-shaped portion 106
according to practical applications. In practical applications, the
through hole 102, the first arc-shaped portion 104 and the second
arc-shaped portion 106 may be formed by punching the fin body
100.
[0021] Furthermore, the first arc-shaped portion 104 and the second
arc-shaped portion 106 may be symmetrically located at opposite
sides of the central line C of the through hole 102, such that the
first arc-shaped portion 104 and the second arc-shaped portion 106
may clamp the heat pipe 12 more tightly after the punching process.
It should be noted that the first arc-shaped portion 104 and the
second arc-shaped portion 106 may be asymmetrically located at
opposite sides of the central line C of the through hole 102
according to practical applications.
[0022] As mentioned in the above, the invention forms two
arc-shaped portions at opposite sides of the through hole of the
heat dissipating fin. An operator may insert the heat pipe into the
through hole of the heat dissipating fin and then punch the two
arc-shaped portions at opposite sides of the through hole. After
punching the two arc-shaped portions, the two arc-shaped portions
fix the heat pipe in a tight-fitting manner. Accordingly, the
invention can connect the heat pipe and the heat dissipating fin
tightly and improve the yield rate and the efficiency of
manufacturing the heat dissipating device.
[0023] Those skilled in the art will readily observe that numerous
modifications and alterations of the device and method may be made
while retaining the teachings of the invention. Accordingly, the
above disclosure should be construed as limited only by the metes
and bounds of the appended claims.
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