U.S. patent application number 12/017038 was filed with the patent office on 2009-07-23 for connecting structure for connecting heat radiation fins.
Invention is credited to Cheng-Kun Shu.
Application Number | 20090183863 12/017038 |
Document ID | / |
Family ID | 40875516 |
Filed Date | 2009-07-23 |
United States Patent
Application |
20090183863 |
Kind Code |
A1 |
Shu; Cheng-Kun |
July 23, 2009 |
Connecting Structure for Connecting Heat Radiation Fins
Abstract
A connecting structure for connecting heat-radiation fins
comprises a plurality of heat-radiation fins each having a heat
conductive portion with both edges folded into wing portions. The
wing portions of the respective heat-radiation fins are different
in width, and the heat-radiation fins are classified into narrow
and wide heat-radiation fins, between each narrow heat-radiation
fin and wide heat-radiation fin is connected a connecting fin, each
wing portion of the respective heat-radiation fins and the
connecting fins is defined with receiving apertures, an outer
portion of the respective receiving apertures extends outward to
form a connecting portion to be received in a corresponding
receiving aperture of a neighboring fin. The connecting fins are
provided with receiving apertures and connecting portions which are
sized corresponding to that of neighboring narrow and wide
heat-radiation fins.
Inventors: |
Shu; Cheng-Kun; (Sanchong
City, TW) |
Correspondence
Address: |
Dr. BANGER SHIA
102 Lindencrest Ct.
Sugar Land
TX
77479-5201
US
|
Family ID: |
40875516 |
Appl. No.: |
12/017038 |
Filed: |
January 20, 2008 |
Current U.S.
Class: |
165/78 ;
165/185 |
Current CPC
Class: |
H01L 23/3672 20130101;
F28F 3/06 20130101; H01L 2924/0002 20130101; H01L 2924/0002
20130101; H01L 2924/00 20130101 |
Class at
Publication: |
165/170 |
International
Class: |
F28F 3/00 20060101
F28F003/00 |
Claims
1. A connecting structure for connecting heat-radiation fins,
comprising: a plurality of heat-radiation fins each having a heat
conductive portion with both edges folded into wing portions, the
wing portions of the respective heat-radiation fins being different
in width, and the heat-radiation fins being classified into narrow
and wide heat-radiation fins, between each narrow heat-radiation
fin and wide heat-radiation fin being connected a connecting fin,
each wing portion of the respective heat-radiation fins and the
connecting fins being defined with receiving apertures, an outer
portion of the respective receiving apertures extending outward to
form a connecting portion to be received in a corresponding
receiving aperture of a neighboring fin; the connecting fins being
provided with receiving apertures and connecting portions for
engaging with that of neighboring narrow and wide heat-radiation
fins.
2. The connecting structure for connecting heat-radiation fins as
claimed in claim 1, wherein a width of the respective wing portions
of the narrow heat-radiation fins is narrower than that of the wide
heat-radiation fins, each wing portion of the narrow heat-radiation
fins includes connecting portions and receiving apertures which are
sized to meet the width of the wing portion of the narrow
heat-radiation fin, the wing portions of the wide heat-radiation
fins are wider than the wing portions of the narrow heat-radiation
fins, the connecting portions and the receiving apertures of the
wing portions of the wide heat-radiation fins are longer than that
of the narrow heat-radiation fins.
3. The connecting structure for connecting heat-radiation fins as
claimed in claim 2, wherein the connecting fins are classified into
two types: one type of connecting fin is connected from the wide
heat-radiation fin toward to the narrow heat-radiation fin, and the
other type of connecting fin is connected from the narrow
heat-radiation fin toward the wide heat-radiation fin.
4. The connecting structure for connecting heat-radiation fins as
claimed in claim 3, wherein wing portions of the connecting fins
are equal in width to the wing portions of the wide heat-radiation
fins, and the receiving apertures in the wing portions of the
connecting fins are equal in size to the connecting portions of the
wide heat-radiation fins, the connecting portions projecting from
the wing portions of the connecting fins toward the receiving
apertures of the narrow heat-radiation fins are the same in size
and shape as the receiving apertures of the narrow heat-radiation
wing portions.
5. The connecting structure for connecting heat-radiation fins as
claimed in claim 3, wherein wing portions of the connecting fins
have the same width as the wing portions of the narrow
heat-radiation fins, the receiving apertures of the wing portions
of the connecting fins have the same size as the connecting
portions of the narrow heat-radiation fins, and the connecting
portions of the wing portions of the connecting fins are also the
same in shape and size as the receiving apertures of the wide
heat-radiation fins.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a connecting structure for
heat-radiation fins, and more particularly to the connection design
of a connecting fin which allows for quick and stable connection of
various heat-radiation fins of different widths, which is used as a
heat-radiation structure in heat generating electronic elements of
a computer.
[0003] 2. Description of the Prior Art
[0004] To meet the heat-radiation requirement of high performance
electronic elements, most of the current heat sinks for
heat-generating electronic elements used in computer generally
comprise heat conductive pipes, heat-radiation fins and a heat
conductive base, which are used to quick dissipate the heat by the
electronic elements. In other words, the factors, such as the
connection design and the contact tightness between the heat
conductive pipes, the heat-radiation fins and the heat conductive
base, have direct influence on the heat radiation efficiency of the
electronic elements. Hence, the fin structures with improved
contact tightness would improve the heat-dissipation efficiency of
the heat sink made from them. The current heat sink structure made
by various engaging or locking methods is inconvenient to
manufacture and costs a lot of manufacturing time.
[0005] Therefore, a new structure design for heat-radiation fins
was disclosed in CN Pat. No. 2891607, which provides different
heat-radiation intervals in such a manner that the wing portions of
the heat-radiation fins are designed to have different widths, and
the heat-radiation fins have various sized engaging grooves and
hooks. The wide wing portions have relatively big engaging grooves
and hooks, while the narrow wing portions have small engaging
grooves and hooks, such design will cause inconvenience when
assembling the heat-radiation fins with wide wing portions to the
narrow heat-radiation fins with narrow wing portions since their
engaging grooves and hooks are different in size and will be
difficult to effectively engage with one another, causing
unexpected looseness. Therefore, such a heat-radiation structure
usually needs to cooperate with a fan to perform heat dissipation.
However, the fan will produce a lot of vibration with high
frequency during operation, which will cause serious damage to the
heat-radiation fins the engagement of which has already been
unstable, and as a result, the heating radiation structure has a
very short service life.
[0006] The present invention has arisen to mitigate and/or obviate
the afore-described disadvantages.
SUMMARY OF THE INVENTION
[0007] The primary objective of the present invention is to provide
a connecting structure for heat-radiation fins, wherein a
connecting fin is connected between heat-radiation fins of
different widths, the engaging and locking structures of the
connecting fin have the same size and shape as that of the
neighboring narrow and wide heat-radiation fins, so that the narrow
heat-radiation fins 10 and the wide heat-radiation fins 20 can be
connected more easily and quickly, and can form various guiding
passages 50A, 50B with different widths, which can meet different
heat radiation requirements.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is an assembly view of a connecting structure for
heat-radiation fins in accordance with the present invention;
[0009] FIG. 2 is a partial exploded view of the connecting
structure for heat-radiation fins in accordance with the present
invention;
[0010] FIG. 3 is a perspective view of the connecting structure for
the narrow heat-radiation fins in accordance with the present
invention;
[0011] FIG. 4 is a perspective view of the connecting structure for
the wide heat-radiation fins in accordance with the present
invention;
[0012] FIG. 5 is a perspective view in accordance with the present
invention showing the connecting fin which is connected from the
wide heat-radiation fin toward to the narrow heat-radiation fin;
and
[0013] FIG. 6 is a perspective view in accordance with the present
invention showing the connecting fin which is connected from the
narrow heat-radiation fin toward the wide heat-radiation fin.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0014] The present invention will be clearer from the following
description when viewed together with the accompanying drawings,
which show, for purpose of illustrations only, the preferred
embodiment in accordance with the present invention.
[0015] Referring to FIGS. 1 and 2, a heat-radiation fin assembly
and its connection structure in accordance with the present
invention comprise: a plurality of heat-radiation fins 10, 20 with
different widths assembled together, the heat-radiation fins 10 are
narrower than the heat-radiation fins 20. The present invention is
characterized in that: between the two heat-radiation fins 10 and
20 are disposed a connecting fin 30, 40 which is sized and shaped
corresponding to the neighboring heat-radiation fins 10 and 20 for
the purpose of quick connection and engagement.
[0016] As shown in FIG. 1, the narrow heat-radiation fins 10 are
superposed one upon another to form narrow guiding passages 50A,
and the wide heat-radiation fins 20 are superposed one upon the
other to form wide guiding passages 50B. The wide heat-radiation
fin 20 is connected to the narrow heat-radiation fin 10 via a
connecting fin 30 which narrows down from the wide heat-radiation
fin 20 toward the narrow heat-radiation fin 10, and the narrow
heat-radiation fin 10 is connected to the wide heat-radiation fin
20 via a connecting fin 40 which gradually widens from the narrow
heat-radiation fin 10 to the wide heat-radiation fin 20.
[0017] The connecting structure between the heat-radiation fins 10
and 20 is shown in FIGS. 3 and 4, and the structures of the
connecting fins 30 and 40 are as shown in FIGS. 5 and 6. Each of
the fins 10, 20, 30 and 40 includes an elongated heat conductive
portion 11, 21, 31, 41, and both long edges of the conductive
portion 11, 21, 31, 41 are folded 90 degrees upward to form two
wing portions 12, 22, 32, 42. At each folding portion between the
heat conductive portion 11, 21, 31, 41 and the wing portions 12,
22, 32, 42 is formed a vertical short stopping portion 13, 23, 33,
43 which extends from the heat conductive portion 11, 21, 31, 41
and is vertical to the wing portions 12, 22, 32, 42. Each of the
heat-radiation fins 10, 20 and the connecting fins 30, 40 is
provided with protrusive reverse T-shaped connecting portions 14,
24, 34, 44 which extend toward the neighboring fins 10, 20, 30, 40.
Between each stopping portion 13, 23, 33, 43 and the corresponding
connecting portion 14, 24, 34, 44 is formed a reverse T-shaped
receiving aperture 15, 25, 35 and 45.
[0018] The width of the wing portions 11 of the narrow
heat-radiation fins 10 is relatively narrow, as shown in FIG. 3,
each wing portion 11 of the narrow heat-radiation fins 10 includes
connecting portions 14 and receiving apertures 15 which are sized
to meet the width of the wing portion 11. The wing portions 21 of
the wide heat-radiation fins 20 are wider than the wing portions 11
of the narrow heat-radiation fins 10, as shown in FIG. 4. The
connecting portions 24 and the receiving apertures 25 of the wing
portions 21 of the wide heat-radiation fins 20 are relatively
longer than that of the narrow heat-radiation fins 10.
[0019] There are two types of connecting fins: the connecting fin
30 is connected from the wide heat-radiation fin 20 toward to the
narrow heat-radiation fin 10, as show in FIG. 5, while the
connecting fin 40 is connected from the narrow heat-radiation fin
10 toward the wide heat-radiation fin 20, as shown in FIG. 6.
[0020] Referring to FIGS. 2 and 5, the wing portions 32 of the
connecting fins 30 are equal in width to the wing portions 22 of
the wide heat-radiation fins 20, and the receiving apertures 35 in
the wing portions 32 are equal in size to the connecting portions
24 of the wide heat-radiation fins 20. The connecting portions 34
projecting from the wing portions 32 toward the receiving apertures
15 of the narrow heat-radiation fins 10 are the same in size and
shape as the receiving apertures 15, so that the wide
heat-radiation fins 20 can be directly connected to the narrow
heat-radiation fins 10 by the connecting fins 30.
[0021] Referring to FIGS. 2 and 6, the connecting fin 40 which is
connected from the narrow heat-radiation fin 10 toward the wide
heat-radiation fin 20 is designed contrary to the connecting fin
30. The wing portions 42 of the connecting fin 40 have the same
width as the wing portions 12 of the narrow heat-radiation fins 10,
the receiving apertures 45 of the wing portions 42 have the same
size as the connecting portions 14 of the narrow heat-radiation
fins 10, and the connecting portions 44 of the wing portions 42 are
also the same in shape and size as the receiving apertures 25 of
the wide heat-radiation fins 20, so that the narrow heat-radiation
fins 10 can be connected to the wide heat-radiation fins 20
directly by the connecting fins 40.
[0022] The connecting portions 14, 24, 34, 44 of the respective
fins 10, 20, 30, 40 are received in the corresponding receiving
apertures 15, 25, 35, 45 in such a manner that the stopping portion
13, 23, 33, 43 at the bottom of the respective receiving apertures
15, 25, 35, 45 are engaged against the back surface of the
connecting portions 14, 24, 34, 44. The height of the stopping
portion 13, 23, 33, 43 is equal to the thickness of the connecting
portions 14, 24, 34, 44, so that the connecting portions 14, 24,
34, 44 can be restricted substantially, and the accordingly the
respective fins 10, 20, 30, 40 can be assembled together easily and
quickly.
[0023] With the connecting fins 30 and 40, the narrow
heat-radiation fins 10 and the wide heat-radiation fins 20 can be
connected more easily and quickly, and can form various guiding
passages 50A, SOB with different widths, which can meet different
heat radiation requirements.
[0024] While we have shown and described various embodiments in
accordance with the present invention, it is clear to those skilled
in the art that further embodiments may be made without departing
from the scope of the present invention.
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