U.S. patent application number 11/134437 was filed with the patent office on 2006-11-23 for structure of heat dissipating fins.
Invention is credited to Dong-Mau Wang, Dong-Yuan Wang.
Application Number | 20060260792 11/134437 |
Document ID | / |
Family ID | 37447263 |
Filed Date | 2006-11-23 |
United States Patent
Application |
20060260792 |
Kind Code |
A1 |
Wang; Dong-Mau ; et
al. |
November 23, 2006 |
Structure of heat dissipating fins
Abstract
A structure of heat dissipating fins that can be assembled with
increased efficiency without the use of adhesive agents such as
soldering tin, and so on, while ensuring a tight fit on cooling
ducts. More than one through hole defined in each of the heat
dissipating fins that provide for cooling ducts to insert therein.
A staircase-like member extends backward from each of the through
holes to form a catch groove, and a catch end further extends
backward from each of the catch grooves. When the heat dissipating
fins are being successively disposed onto the cooling ducts through
the through holes, the catch ends are respectively disposed into
the catch grooves of the heat dissipating fin positioned
therebehind, thereby producing a tight clamping effect on the
cooling ducts, further causing an immobile mutual fastening between
the heat dissipating fins without the use of soldering tin.
Inventors: |
Wang; Dong-Mau; (Banchiau
City, TW) ; Wang; Dong-Yuan; (Banchiau City,
TW) |
Correspondence
Address: |
Dong-Mau Wang & Dong-Yuan Wang
P.O. Box No. 6-57, Junghe
Taipei
235
TW
|
Family ID: |
37447263 |
Appl. No.: |
11/134437 |
Filed: |
May 23, 2005 |
Current U.S.
Class: |
165/182 ;
257/E23.103 |
Current CPC
Class: |
H01L 23/3672 20130101;
H01L 2924/00 20130101; H01L 21/4882 20130101; H01L 2924/0002
20130101; H01L 2924/0002 20130101; F28F 1/32 20130101 |
Class at
Publication: |
165/182 |
International
Class: |
F28F 1/30 20060101
F28F001/30 |
Claims
1. A structure of heat dissipating fins comprising more than one
through hole defined in each heat dissipating fin that provide for
cooling ducts to insert therein, and characterized in that a
staircase-like member extends backward from each of the through
holes to form a catch groove, and a protrudent catch end further
extends backward from each of the catch grooves, moreover, outer
diameter of the catch ends is slightly larger than inner diameter
of the catch grooves.
2. The structure of heat dissipating fins as described in claim 1,
wherein the outer diameter of the catch end assumes a backward
extending gradual tapering funnel form.
3. The structure of heat dissipating fins as described in claim 1,
wherein a vent groove is defined in an end of the catch end.
4. The structure of heat dissipating fins as described in claim 1,
wherein the catch ends of the heat dissipating fin positioned in
front are respectively disposed into the catch grooves of the heat
dissipating fin positioned therebehind, and tightened to clamp onto
the cooling ducts.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The present invention relates to a structure of heat
dissipating fins, and more particularly to heat dissipating fins
that can be assembled with increased efficiency without the use of
adhesive agents such as soldering tin, and so on, while ensuring a
tight fit on cooling ducts.
[0003] (b) Description of the Prior Art
[0004] The problem of heat dissipation is currently the most
critical issue affecting development in 3C (computer,
communications and consumer electronics) products. Thus, research
and development in improving heat dissipation efficiency has
already become one of industries active topics of research.
[0005] A traditional heat dissipating device uses heat dissipating
fins in conjunction with a fan to disperse heat energy from within
the 3C (computer, communications and consumer electronics) product.
The heat dissipating fins are structured from a metal material such
as copper, aluminum, and so on, and an assemblage of the heat
dissipating fins is configured so as to increase area of heat
exchange. Referring to FIG. 1, which shows clasp portions (11) and
clasp grooves (12) configured on peripheral edges of each heat
dissipating fin (10) so as to mutually clasp, thereby achieving the
objective of enabling immobile mutual clasping together of
adjoining front and rear heat dissipating fins (10) using the clasp
portions (11) and the clasp grooves (12) configured thereon.
However, such a configuration using purely the heat dissipating
fins (10) to implement heat exchange is inadequate.
[0006] Hence, a combination of the heat dissipating fins (10) and
cooling ducts (20) is used to increase heat dissipation efficiency.
Referring to FIG. 2, which shows a method whereby the heat
dissipating fins (10) and the cooling ducts (20) are combined
primarily using through holes (13) defined on the heat dissipating
fins (10), which enable the heat dissipating fins (10) to be
successively disposed onto the cooling ducts (20) through the
through holes (13), whereupon soldering tin or other adhering
method is used to join the aforementioned heat dissipating fins
(10) and the cooling ducts (20), thereby forming an integral
body.
[0007] However, the configuration whereby the heat dissipating fins
(10) are disposed on the cooling ducts (20) through the through
holes (13) defined in the heat dissipating fins (10) requires the
heat dissipating fins (10) to be slipped one by one onto the
cooling ducts (20). Moreover, the cooling ducts (20) must fit
tightly into the through holes (13), thus, the diameter of the
through holes (13) must correspond to the diameter of the cooling
ducts (20) in order to achieve an effective close-fitting
configuration. Hence, when the heat dissipating fins (10) are being
successively disposed onto the cooling ducts (20) through the
through holes (13), friction results between the walls of the
through holes (13) of the heat dissipating fins (10) and the walls
of the cooling ducts (20), which causes gradual wearing away of the
walls at the front ends of the cooling ducts (20), and results in a
smaller outer diameter at the front ends of the cooling ducts (20).
Thus, the dissipating fins (10) being subsequently disposed on the
front ends of the cooling ducts (20) are slack, which spoils
structural strength of the assemblage of heat dissipating fins
(10), and, moreover, results in the heat dissipating fins (10)
being askew or coming apart.
[0008] Hence, in order to prevent the aforementioned slackening
phenomenon or coming apart of the heat dissipating fins (10) from
occurring, tin paste or adhesive agents are used to bond together
the cooling ducts (20) and the heat dissipating fins (10). However,
the use of tin paste raises the cost of assembling the heat
dissipating fins (10), assembly of the heat dissipating fins is
considerably time-consuming, and, more particularly, results in
environmental pollution, and is thus not an ideal
configuration.
SUMMARY OF THE INVENTION
[0009] In light of the aforementioned shortcomings of a
conventional configuration, the inventor of the present invention,
having accumulated years of experience in research, design and
manufacturing of related arts, attentively and circumspectly
carried out extensive study and exploration to ultimately design a
new structure for heat dissipating fins.
[0010] Hence, the heat dissipating fins of the present invention
includes more than one through hole defined in each heat
dissipating fin that provide for cooling ducts to insert therein. A
staircase-like member extends backward from each of the through
holes to form a catch groove, and a catch end further extends
backward from each of the catch grooves. Accordingly, when the heat
dissipating fins are being successively disposed onto the cooling
ducts through the through holes, the catch ends of the heat
dissipating fin positioned in front are respectively disposed into
the catch grooves of the heat dissipating fin positioned
therebehind, thereby producing a tight clamping effect on the
cooling ducts, which further realizes an immobile mutual fastening
between the heat dissipating fins.
[0011] The objective of the present invention is to use the catch
grooves backward extending from the through holes and the catch
ends backward extending from the catch grooves so that when the
heat dissipating fins are being disposed on the cooling ducts
through the through holes, the backward extending catch ends of the
heat dissipating fin positioned in front are respectively inserted
within the backward extending catch grooves of the heat dissipating
fin positioned therebehind, thereby forming a clamping effect
between the cooling ducts and the catch grooves, which tightens the
catch ends within the catch grooves. Moreover, a mutual clamping
between the heat dissipating fins and a tight fit on the cooling
ducts is further realized, which succeeds in achieving a sufficient
heat dissipation effect. Because it is unnecessary for an extremely
tight fit between the through holes and the cooling ducts when
assembling the heat dissipating fins, thus, not only is abrasion of
the cooling ducts eliminated, but also assembly efficiency of each
of the heat dissipating fins on the cooling ducts is improved.
Moreover, structural strength between each of the heat dissipating
fins is increased because of the clamping effect and more
particularly, because there is no need to use soldering tin or
other adhesive agents, the present invention does not cause
environmental pollution.
[0012] To enable a further understanding of said objectives and the
technological methods of the invention herein, brief description of
the drawings is provided below followed by detailed description of
the preferred embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 shows a schematic view of conventional heat
dissipating fins being assembled.
[0014] FIG. 2 shows a schematic view of conventional heat
dissipating fins and cooling ducts of another prior art being
assembled.
[0015] FIG. 3 shows a schematic view of heat dissipating fins and
cooling ducts being assembled according to the present
invention.
[0016] FIG. 4 shows a cross-sectional schematic view of the present
invention after assembly.
[0017] FIG. 5 shows a schematic view of an enlarged portion of FIG.
4 according to the present invention.
[0018] FIG. 6 shows a schematic view of a second embodiment
according to the present invention.
[0019] FIG. 7 shows a schematic view of a third embodiment
according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0020] Referring to FIG. 3, which shows a structural assembly of
heat dissipating fins of the present invention, comprising more
than one through hole (13) defined in each heat dissipating fin
(10) that provide for cooling ducts (20) to insert therein. The
present invention is characterized in that a staircase-like member
extends backward from each of the through holes (13) to form a
catch groove (14), and a protrudent catch end (15) extends backward
from each of the catch grooves (14). Outer diameter of the catch
ends is slightly larger than inner diameter of the catch grooves
(14).
[0021] Accordingly, each of the heat dissipating fins (10) are
successively slipped onto one end of each of the cooling ducts
(20), while another end of each of the cooling ducts (20) is
disposed within a limit arc groove (16) of a top end of each of the
heat dissipating fins (10). Referring to FIG. 4, when each of the
heat dissipating fins (10) is successively disposed onto the
cooling ducts (20) through the through holes (13), because the
outer diameter of the backward extending catch ends (15) of the
heat dissipating fin (10) positioned in front is slightly larger
than the inner diameter of the backward extending catch grooves
(14) of the adjoining heat dissipating fin (10) positioned
therebehind, thus, after each of the heat dissipating fins (10) has
been disposed onto the cooling ducts (20) through the through holes
(13), then the heat dissipating fins (10) become slightly
compressed, thereby enabling the catch ends (15) of the heat
dissipating fin (10) positioned in front to be respectively tightly
fitted within the catch grooves (14) of the adjoining heat
dissipating fin (10) positioned therebehind. Thus, the catch
grooves (14) and the cooling ducts (20) in conjunction with the
catch ends (15) form a mutual clasping effect, furthermore, a
mutual clamping effect is realized between each of the heat
dissipating fins (10).
[0022] Referring to FIG. 5, when the catch ends (15) of the heat
dissipating fin (10) positioned in front are tightly fitted within
the catch grooves (14) of the heat dissipating fin (10) positioned
therebehind, because the outer diameter of the catch ends (15) is
slightly larger than the inner diameter of the catch grooves (14),
thus, a coordinative compact configuration between the catch ends
(15), the catch grooves (14) and the cooling ducts (20) is realized
through the cooling ducts (20) functioning in coordination with the
catch grooves (14), thereby effectuating an immobile mutual
clamping between each of the heat dissipating fins (10), which
further prevents slackening and coming apart of the heat
dissipating fins (10). Moreover, the immobile fastening effect
realized between the heat dissipating fin (10) positioned in front
and the adjoining heat dissipating fin (10) positioned therebehind
on the cooling ducts (20) structures a heat dissipating device of
superior strength.
[0023] In other words, the present invention is characterized in
having a configuration comprising catch grooves (14) that extend
backwards from a rear of the through holes (13) and catch ends (15)
that extend backwards from the catch grooves (14), which enable
achieving the objective of immobile mutual clamping between each of
the heat. dissipating fins (10) through clamping together of the
catch ends (15) and the catch grooves (14) in conjunction with the
diameter of the cooling ducts (20). Furthermore, because the outer
diameter of the catch ends (15) is slightly larger than the inner
diameter of the catch grooves (14), thus, an effective tight
clamping configuration is formed between the heat dissipating fin
(10) positioned in front and the adjoining heat dissipating fin
(10) positioned therebehind on the cooling ducts (20), which
prevents slackening and coming apart of the dissipating fins (10)
because of wearing away on the walls of the front ends of the
cooling ducts (20).
[0024] Furthermore, when assembling the present invention, the heat
dissipating fins (10) are simply slipped one by one onto the
cooling ducts (20), which then become slightly compressed from two
sides, thereby assembling the heat dissipating fins (10). The
structural assembly of the present invention simplifies that of
conventional heat dissipating fins that require configuring clasp
portions and clasp grooves on peripheral edges of the heat
dissipating fins. Hence, the present invention not only simplifies
the manufacturing process of the heat dissipating fins (10),
moreover, it enhances assembly efficiency between the heat
dissipating fins (10), which significantly increases productivity.
Furthermore, contact area between the heat dissipating fins (10)
and the cooling ducts (20) is increased, which further enhances
heat dissipation efficiency of the heat dissipating fins (10), and
saves on tin paste as used in conventional heat dissipating fins.
The present invention not only effectively reduces manufacturing
costs, moreover, it is environmental conscious and economical on
energy resources. Clasp portion and clasp groove structural members
can be further configured on peripheral edges of the heat
dissipating fins of the present invention (structures of which are
the same as conventional art, and thus details are not included
herein), thereby further increasing structural strength and heat
dissipation effect of each of the heat dissipating fins (10).
[0025] Furthermore, referring to FIG. 6, wherein the outer diameter
of the catch end (15) of the heat dissipating fin (10) further
assumes a backward extending gradual tapering funnel form, which
further facilitates assembling each of the heat dissipating fins
(10) onto the cooling ducts (20), and avoids interference
therebetween. Referring to FIG. 7, wherein a vent groove (17) can
be further defined in each of the catch ends (15), and formation of
the vent grooves enable the catch ends (15) to create an elastic
deformation effect within a reasonable space, which further
improves assembly time efficiency of the heat dissipating fins
(10), and, moreover, enables forming a more compact integral body
between the heat dissipating fins (10).
[0026] It is of course to be understood that the embodiments
described herein are merely illustrative of the principles of the
invention and that a wide variety of modifications thereto may be
effected by persons skilled in the art without departing from the
spirit and scope of the invention as set forth in the following
claims.
* * * * *