US20100270014A1 - Heat sink with radially arranged radiation fins - Google Patents
Heat sink with radially arranged radiation fins Download PDFInfo
- Publication number
- US20100270014A1 US20100270014A1 US12/480,621 US48062109A US2010270014A1 US 20100270014 A1 US20100270014 A1 US 20100270014A1 US 48062109 A US48062109 A US 48062109A US 2010270014 A1 US2010270014 A1 US 2010270014A1
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- United States
- Prior art keywords
- heat sink
- tubular base
- radiation fins
- channels
- angled foot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
- F28F1/20—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being attachable to the element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
- A61P37/06—Immunosuppressants, e.g. drugs for graft rejection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/08—Antiallergic agents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
- F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
Definitions
- the present invention relates to heat sinks and more particularly to a heat sink with radially arranged radiation fins for dissipating waste heat from a CPU, LED lamp or any other heat source, which comprises a tubular base having longitudinal channels and a longitudinal rib protruding from the periphery and extending along one side of each of the channels, and a plurality of radiation fins each having an angled foot portion that is inserted into one respective channel of the tubular base and fixedly secured thereto by means of stamping down the associated longitudinal rib.
- a conventional heat sink with radially arranged radiation fins has the radiation fins formed integral with the periphery of a tubular base and arranged around the periphery of the tubular base in a radial manner.
- the tubular base can be a round tube, rectangular tube, or a tube of any of a variety of configurations. Because the radiation fins and the tubular base are made in an integral piece, the fabrication of the heat sink is difficult, and the manufacturing cost is high. Further, a heat sink made in this manner is heavy and has low efficiency in heat dissipation. Therefore, such design of heat sink is not practical in application.
- heat sink in which the radiation fins are bonded to the periphery of the tubular base by means of a soldering technique.
- Employing a soldering technique to bond radiation fins to a tubular base is not environmentally friendly.
- heat sinks in which the tubular base has channels arranged around the periphery for the mounting of radiation fins. After insertion of radiation fins into the channels of the tubular base, the periphery of the tubular base are deformed to squeeze the two opposite sidewalls of each of the channels toward the two opposite sides of each of the radiation fins to secure the radiation fins in place.
- the radiation fins may be forced out of position or bent. When this problem happens, the radiation fins will not be kept in flush or firmly secured in position.
- a heat sink in accordance with the present invention comprises a tubular base and a plurality of radiation fins arranged around the tubular base.
- the tubular base has a plurality of longitudinal channels arranged in parallel around the periphery thereof, and a plurality of first ribs protruding from the periphery and respectively extending along one side of each of the channels.
- each radiation fin has an angled foot portion. The angled foot portions of the radiation fins are respectively inserted into the channels of the tubular base and secured thereto by the first ribs that are stamped down after the radiation fins are inserted into the channels of the tubular base.
- the angled foot portions of the radiation fins can be accurately inserted into the channels of the tubular base and closely attached to the bottom of each of the channels. Therefore, the radiation fins are firmly secured to the tubular base and kept in flush after the first ribs of the tubular base are stamped down.
- tubular base has a plurality of second ribs protruding from the periphery and respectively extending along an opposite side of each of the channels opposite to the first ribs for supporting the radiation fins in position upon deformation of the first ribs.
- the radiation fins are respectively made of a thin metal sheet, each having an inner end edge folded up and curved to form the respective angled foot portion. Further, each radiation fin has an outer end edge folded up to form a respective outer obtuse edge opposite to the angled foot portion of the respective radiation fin. Further, the angle of the angled foot portions of the radiation fins can be 90-degrees, an acute angle or an obtuse angle.
- tubular base can be a solid or hollow tube having a circular or rectangular cross section, or any of a variety of other configurations.
- the tubular base can be made in the shape of a U-tube.
- tubular base can be made by means of extrusion or stretch die stamping technology to form the desired channels, first ribs and second ribs on the periphery.
- the tubular base can be manufactured through a mass production process at a relatively low manufacturing cost.
- FIG. 1 is an exploded view of a heat sink in accordance with a first embodiment of the present invention.
- FIG. 2 is an oblique elevation of the heat sink in accordance with the first embodiment of the present invention.
- FIG. 3 is an enlarged view of a part of FIG. 1 , showing the radiation fins respectively inserted into the channels of the tubular base.
- FIG. 4 corresponds to FIG. 3 , showing a number of the first ribs stamped down.
- FIG. 5 is an elevational view of a heat sink in accordance with a second embodiment of the present invention.
- FIG. 6 is a bottom view of the heat sink in accordance with the second embodiment of the present invention.
- FIG. 7 is an exploded view of the heat sink in accordance with the second embodiment of the present invention.
- FIG. 8 illustrates the angled foot portions of the radiation fins respectively inserted into the channels of the tubular base before deformation of the first ribs.
- FIG. 9 is an enlarged view of a part of FIG. 8 .
- FIG. 10 corresponds to FIG. 9 , showing a number of the first ribs stamped down.
- FIG. 11 is a schematic drawing of the present invention, showing the tubular base made in the form of a U-tube.
- FIG. 12 is a schematic drawing of the present invention, showing the tubular base made in the form of a solid tube.
- FIG. 13 is a schematic sectional view of the present invention, showing first ribs stamped down and forced into tight engagement with the 90-degrees angle of angled foot portions of the radiation fins.
- FIG. 14 is a schematic sectional view of the present invention, showing first ribs stamped down and forced into tight engagement with the acute angle of angled foot portions of the radiation fins.
- FIG. 15 is a schematic sectional view of the present invention, showing first ribs stamped down and forced into tight engagement with the obtuse angle of angled foot portions of the radiation fins.
- a heat sink in accordance with a first embodiment of the present invention comprises a tubular base 1 and a number of radiation fins 2 .
- the tubular base 1 has longitudinal channels 11 arranged in parallel around the periphery, and a first rib 12 protruding from the periphery and extending along one side of each channel 11 .
- the radiation fins 2 each have an angled foot portion 21 (see FIG. 3 ) insertable into the channels 11 of the tubular base 1 respectively.
- the angled foot portions 21 of the radiation fins 2 are inserted into the channels 11 of the tubular base 1 respectively, and then a stamping mold 3 is used (see FIG. 4 ) to stamp the first ribs 12 of the tubular base 1 , deforming the first ribs 12 and forcing them into tight engagement with the angled foot portions 21 of the radiation fins 2 in the channels 11 of the tubular base 1 respectively.
- the radiation fins 2 are firmly secured to the tubular base 1 , and kept in a flush manner (see FIG. 1 ).
- the radiation fins 2 are thin metal sheet members, each having an inner end edge folded up and curved to form a respective angled foot portion 21 and an outer end edge folded up to form a respective outer obtuse edge 22 .
- the fold-up arrangement of the angled foot portion 21 enhances its engagement with the associated first rib 12 .
- the fold-up arrangement of the outer obtuse edge 22 round the edges of the radiation fins 2 to avoid accidental injuries from sharp edges.
- FIGS. 5 ⁇ 7 show a heat sink in accordance with a second embodiment of the present invention.
- the tubular base 1 has a first rib 12 protruding from the periphery and extending along one side of each of the channels 11 thereof, and a second rib 13 protruding from the periphery and extending along the other side of each of the channels 11 (see FIG. 8 or FIG. 9 ).
- the second ribs 13 provide a support to the radiation fins 2 respectively (see FIG. 10 ), thereby holding the radiation fins 2 firmly in position without biasing.
- the radiation fins 2 are firmly secured to the periphery of the tubular base 1 irrespective of any possible vibration.
- one or a number of retaining plates 23 may be attached to the radiation fins 2 at the top or bottom side to secure the radiation fins 2 together and to keep the radiation fins 2 properly spaced from one another.
- the tubular base 1 has a circular cross section.
- the tubular base 1 can also have a rectangular, trapezoidal, oval or rhombic cross section, or any of a variety of other configurations.
- the tubular base 1 can also be made in the shape of a U-tube (see FIG. 11 ), having mounting through holes 141 on one closed side 14 thereof for mounting fastening devices (not shown) to affix the tubular base 1 to an electronic device or another heat source.
- the tubular base 1 can be formed of a solid tube (see FIG. 12 ), or a hollow tube.
- FIGS. 13 ⁇ 15 show different alternate forms of the angled foot portion 21 of each radiation fin 2 .
- the angle of the angled foot portions 21 of the radiation fins 2 can be equal to, smaller than or greater than 90-degrees.
- the foot portions of the channels 11 of the tubular base 1 are configured according to the angle of the angled foot portions 21 of the radiation fins 2 .
- the radiation fins 2 can have a relatively greater wall thickness (see FIGS. 13 ⁇ 15 ).
- the first ribs 12 are stamped down and forced into tight engagement with the angled foot portions 21 of the radiation fins 2 , enabling the radiation fins 2 to be supported on the respective second ribs 13 .
- the tubular base 1 can be formed of a hollow or solid tube of any desired configuration and size.
- the tubular base 1 can be made by means of extrusion or stretch die stamping technology to form the desired channels 11 , first ribs 12 and second ribs 13 on the periphery.
- the formation of the tubular base 1 can be done through a mass production process to lower the manufacturing cost.
- the mounting arrangement between the tubular base and the radiation fins and structural features of the heat sink in accordance with the present invention are significant different from that of the prior art design. More particularly, the radiation fins can be inserted into the bottom side of the channels of the tubular base and fixedly secured thereto. After installation of the radiation fins in the tubular base, the radiation fins are kept in flush without biasing.
- FIGS. 1 ⁇ 15 Prototypes of the heat sink have been constructed with the features illustrated in FIGS. 1 ⁇ 15 .
- the heat sink functions smoothly to provide all of the advantages disclosed earlier.
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Abstract
A heat sink includes a tubular base having longitudinal channels arranged in parallel around the periphery and a first and a second ribs protruding from the periphery and respectively extending along two opposite sides of each of the channels, and radiation fins radially arranged around the tubular base and supported on the second ribs, each radiation fin having an angled foot portion respectively inserted into the channels and secured thereto by the first ribs that are stamped down after the angled foot portions of the radiation fins are inserted into the channels of the tubular base.
Description
- (a) Field of the Invention
- The present invention relates to heat sinks and more particularly to a heat sink with radially arranged radiation fins for dissipating waste heat from a CPU, LED lamp or any other heat source, which comprises a tubular base having longitudinal channels and a longitudinal rib protruding from the periphery and extending along one side of each of the channels, and a plurality of radiation fins each having an angled foot portion that is inserted into one respective channel of the tubular base and fixedly secured thereto by means of stamping down the associated longitudinal rib.
- (b) Description of the Prior Art
- A conventional heat sink with radially arranged radiation fins has the radiation fins formed integral with the periphery of a tubular base and arranged around the periphery of the tubular base in a radial manner. The tubular base can be a round tube, rectangular tube, or a tube of any of a variety of configurations. Because the radiation fins and the tubular base are made in an integral piece, the fabrication of the heat sink is difficult, and the manufacturing cost is high. Further, a heat sink made in this manner is heavy and has low efficiency in heat dissipation. Therefore, such design of heat sink is not practical in application.
- There is known a heat sink in which the radiation fins are bonded to the periphery of the tubular base by means of a soldering technique. Employing a soldering technique to bond radiation fins to a tubular base is not environmentally friendly. There are also heat sinks in which the tubular base has channels arranged around the periphery for the mounting of radiation fins. After insertion of radiation fins into the channels of the tubular base, the periphery of the tubular base are deformed to squeeze the two opposite sidewalls of each of the channels toward the two opposite sides of each of the radiation fins to secure the radiation fins in place. If the foot ends of the radiation fins are not fully inserted into the bottom of the channels or if an accidental vibration occurs when deforming the periphery of the tubular base, the radiation fins may be forced out of position or bent. When this problem happens, the radiation fins will not be kept in flush or firmly secured in position.
- Accordingly, there is a need for a heat sink with radially arranged radiation fins that does not have the aforesaid problems.
- The present invention has been accomplished under the circumstances in view. A heat sink in accordance with the present invention comprises a tubular base and a plurality of radiation fins arranged around the tubular base. The tubular base has a plurality of longitudinal channels arranged in parallel around the periphery thereof, and a plurality of first ribs protruding from the periphery and respectively extending along one side of each of the channels. Further, each radiation fin has an angled foot portion. The angled foot portions of the radiation fins are respectively inserted into the channels of the tubular base and secured thereto by the first ribs that are stamped down after the radiation fins are inserted into the channels of the tubular base. The angled foot portions of the radiation fins can be accurately inserted into the channels of the tubular base and closely attached to the bottom of each of the channels. Therefore, the radiation fins are firmly secured to the tubular base and kept in flush after the first ribs of the tubular base are stamped down.
- Further, the tubular base has a plurality of second ribs protruding from the periphery and respectively extending along an opposite side of each of the channels opposite to the first ribs for supporting the radiation fins in position upon deformation of the first ribs.
- Further, the radiation fins are respectively made of a thin metal sheet, each having an inner end edge folded up and curved to form the respective angled foot portion. Further, each radiation fin has an outer end edge folded up to form a respective outer obtuse edge opposite to the angled foot portion of the respective radiation fin. Further, the angle of the angled foot portions of the radiation fins can be 90-degrees, an acute angle or an obtuse angle.
- Further, the tubular base can be a solid or hollow tube having a circular or rectangular cross section, or any of a variety of other configurations. For example, the tubular base can be made in the shape of a U-tube.
- Further, the tubular base can be made by means of extrusion or stretch die stamping technology to form the desired channels, first ribs and second ribs on the periphery. The tubular base can be manufactured through a mass production process at a relatively low manufacturing cost.
-
FIG. 1 is an exploded view of a heat sink in accordance with a first embodiment of the present invention. -
FIG. 2 is an oblique elevation of the heat sink in accordance with the first embodiment of the present invention. -
FIG. 3 is an enlarged view of a part ofFIG. 1 , showing the radiation fins respectively inserted into the channels of the tubular base. -
FIG. 4 corresponds toFIG. 3 , showing a number of the first ribs stamped down. -
FIG. 5 is an elevational view of a heat sink in accordance with a second embodiment of the present invention. -
FIG. 6 is a bottom view of the heat sink in accordance with the second embodiment of the present invention. -
FIG. 7 is an exploded view of the heat sink in accordance with the second embodiment of the present invention. -
FIG. 8 illustrates the angled foot portions of the radiation fins respectively inserted into the channels of the tubular base before deformation of the first ribs. -
FIG. 9 is an enlarged view of a part ofFIG. 8 . -
FIG. 10 corresponds toFIG. 9 , showing a number of the first ribs stamped down. -
FIG. 11 is a schematic drawing of the present invention, showing the tubular base made in the form of a U-tube. -
FIG. 12 is a schematic drawing of the present invention, showing the tubular base made in the form of a solid tube. -
FIG. 13 is a schematic sectional view of the present invention, showing first ribs stamped down and forced into tight engagement with the 90-degrees angle of angled foot portions of the radiation fins. -
FIG. 14 is a schematic sectional view of the present invention, showing first ribs stamped down and forced into tight engagement with the acute angle of angled foot portions of the radiation fins. -
FIG. 15 is a schematic sectional view of the present invention, showing first ribs stamped down and forced into tight engagement with the obtuse angle of angled foot portions of the radiation fins. - As shown in
FIGS. 1 and 2 , a heat sink in accordance with a first embodiment of the present invention comprises atubular base 1 and a number ofradiation fins 2. - The
tubular base 1 haslongitudinal channels 11 arranged in parallel around the periphery, and afirst rib 12 protruding from the periphery and extending along one side of eachchannel 11. - The
radiation fins 2 each have an angled foot portion 21 (seeFIG. 3 ) insertable into thechannels 11 of thetubular base 1 respectively. - During the assembly process of the heat sink, the
angled foot portions 21 of theradiation fins 2 are inserted into thechannels 11 of thetubular base 1 respectively, and then astamping mold 3 is used (seeFIG. 4 ) to stamp thefirst ribs 12 of thetubular base 1, deforming thefirst ribs 12 and forcing them into tight engagement with theangled foot portions 21 of theradiation fins 2 in thechannels 11 of thetubular base 1 respectively. When assembled, theradiation fins 2 are firmly secured to thetubular base 1, and kept in a flush manner (seeFIG. 1 ). - The
radiation fins 2 are thin metal sheet members, each having an inner end edge folded up and curved to form a respectiveangled foot portion 21 and an outer end edge folded up to form a respective outerobtuse edge 22. The fold-up arrangement of theangled foot portion 21 enhances its engagement with the associatedfirst rib 12. The fold-up arrangement of the outerobtuse edge 22 round the edges of theradiation fins 2 to avoid accidental injuries from sharp edges. -
FIGS. 5˜7 show a heat sink in accordance with a second embodiment of the present invention. According to this second embodiment, thetubular base 1 has afirst rib 12 protruding from the periphery and extending along one side of each of thechannels 11 thereof, and asecond rib 13 protruding from the periphery and extending along the other side of each of the channels 11 (seeFIG. 8 orFIG. 9 ). After theradiation fins 2 are inserted into thechannels 11 of thetubular base 1 and secured thereto by thefirst ribs 12, thesecond ribs 13 provide a support to theradiation fins 2 respectively (seeFIG. 10 ), thereby holding the radiation fins 2 firmly in position without biasing. Thus, theradiation fins 2 are firmly secured to the periphery of thetubular base 1 irrespective of any possible vibration. - Further, in either of the aforesaid first or second embodiment, one or a number of
retaining plates 23 may be attached to theradiation fins 2 at the top or bottom side to secure theradiation fins 2 together and to keep the radiation fins 2 properly spaced from one another. - According to the aforesaid first and second embodiments, the
tubular base 1 has a circular cross section. In actual practice, thetubular base 1 can also have a rectangular, trapezoidal, oval or rhombic cross section, or any of a variety of other configurations. Thetubular base 1 can also be made in the shape of a U-tube (seeFIG. 11 ), having mounting throughholes 141 on one closedside 14 thereof for mounting fastening devices (not shown) to affix thetubular base 1 to an electronic device or another heat source. In actual practice, thetubular base 1 can be formed of a solid tube (seeFIG. 12 ), or a hollow tube. -
FIGS. 13˜15 show different alternate forms of theangled foot portion 21 of eachradiation fin 2. The angle of theangled foot portions 21 of theradiation fins 2 can be equal to, smaller than or greater than 90-degrees. In consequence, the foot portions of thechannels 11 of thetubular base 1 are configured according to the angle of theangled foot portions 21 of theradiation fins 2. Further, theradiation fins 2 can have a relatively greater wall thickness (seeFIGS. 13˜15 ). After theangled foot portions 21 of theradiation fins 2 are inserted into thechannels 11 of thetubular base 1, thefirst ribs 12 are stamped down and forced into tight engagement with theangled foot portions 21 of theradiation fins 2, enabling theradiation fins 2 to be supported on the respectivesecond ribs 13. - Further, as stated above, the
tubular base 1 can be formed of a hollow or solid tube of any desired configuration and size. Thetubular base 1 can be made by means of extrusion or stretch die stamping technology to form the desiredchannels 11,first ribs 12 andsecond ribs 13 on the periphery. The formation of thetubular base 1 can be done through a mass production process to lower the manufacturing cost. - In conclusion, the mounting arrangement between the tubular base and the radiation fins and structural features of the heat sink in accordance with the present invention are significant different from that of the prior art design. More particularly, the radiation fins can be inserted into the bottom side of the channels of the tubular base and fixedly secured thereto. After installation of the radiation fins in the tubular base, the radiation fins are kept in flush without biasing.
- Prototypes of the heat sink have been constructed with the features illustrated in
FIGS. 1˜15 . The heat sink functions smoothly to provide all of the advantages disclosed earlier. - Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
Claims (14)
1. A heat sink, comprising:
a tubular base, said tubular base having a plurality of longitudinal channels arranged in parallel around the periphery thereof, and a plurality of first ribs protruding from the periphery and respectively extending along a first side of each of said channels;
a plurality of radiation fins radially arranged around said tubular base, each said radiation fin having an angled foot portion, which is inserted into one said channel and secured thereto by the associated first rib upon deformation of the associated first rib by an external force.
2. The heat sink as claimed in claim 1 , wherein said radiation fins are respectively made of a thin metal sheet, each having an inner end edge folded up and curved to form the respective angled foot portion.
3. The heat sink as claimed in claim 2 , wherein each said radiation fin has an outer end edge folded up to form a respective outer obtuse edge opposite to the angled foot portion of the respective radiation fin.
4. The heat sink as claimed in claim 1 , wherein said tubular base further comprises a plurality of second ribs protruding from the periphery and respectively extending along a second side of each of said channels opposite to one said first rib.
5. The heat sink as claimed in claim 1 , further comprising at least one retaining plate attached to said radiation fins at one of top and bottom sides thereof to secure said radiation fins together.
6. The heat sink as claimed in claim 1 , wherein said tubular base has a round or oval cross section.
7. The heat sink as claimed in claim 1 , wherein said tubular base has a rectangular, trapezoidal or rhombic cross section.
8. The heat sink as claimed in claim 1 , wherein said tubular base is a hollow tube with a closed bottom side.
9. The heat sink as claimed in claim 8 , wherein said tubular base has a plurality of mounting holes on the closed bottom side thereof.
10. The heat sink as claimed in claim 1 , wherein said tubular base is a solid tube.
11. The heat sink as claimed in claim 1 , wherein said tubular base is a hollow tube.
12. The heat sink as claimed in claim 1 , wherein the angle of the angled foot portions of said radiation fins is 90-degrees.
13. The heat sink as claimed in claim 1 , wherein the angle of the angled foot portions of said radiation fins is an acute angle.
14. The heat sink as claimed in claim 1 , wherein the angle of the angled foot portions of said radiation fins is an obtuse angle.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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TW098206779 | 2009-04-23 | ||
TW098206779U TWM363020U (en) | 2009-04-23 | 2009-04-23 | Heat sink with radial heat dissipation fins |
Publications (1)
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US20100270014A1 true US20100270014A1 (en) | 2010-10-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/480,621 Abandoned US20100270014A1 (en) | 2009-04-23 | 2009-06-08 | Heat sink with radially arranged radiation fins |
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US (1) | US20100270014A1 (en) |
JP (1) | JP3152581U (en) |
DE (1) | DE202009008498U1 (en) |
TW (1) | TWM363020U (en) |
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US20120242837A1 (en) * | 2011-03-24 | 2012-09-27 | Kabushiki Kaisha Topcon | Omnidirectional Camera |
CN102913876A (en) * | 2012-09-28 | 2013-02-06 | 深圳市慧盈通机电有限公司 | LED (light emitting diode) lamp, heat radiator used for LED lamp and machining process of heat radiator |
US20130233527A1 (en) * | 2012-03-08 | 2013-09-12 | Tsung-Hsien Huang | Tubular radiating seat integrally formed by one working procedure |
US20130335978A1 (en) * | 2012-06-13 | 2013-12-19 | Tsung-Hsien Huang | Led lamp assembly |
CN104684335A (en) * | 2013-11-26 | 2015-06-03 | 讯强电子(惠州)有限公司 | Heat dissipation device and manufacturing method thereof |
US9239159B2 (en) | 2011-12-16 | 2016-01-19 | Samsung Electronics Co., Ltd. | Heat-dissipating structure for lighting apparatus and lighting apparatus |
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Publication number | Priority date | Publication date | Assignee | Title |
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TW201135178A (en) * | 2010-04-15 | 2011-10-16 | chong-xian Huang | Heat dissipation device |
CN101826369B (en) * | 2010-05-01 | 2013-05-29 | 东莞汉旭五金塑胶科技有限公司 | Radiator |
CN104302147B (en) * | 2013-07-18 | 2017-07-28 | 技嘉科技股份有限公司 | The manufacture method and its radiator of radiator |
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US2525092A (en) * | 1948-10-30 | 1950-10-10 | Griscom Russell Co | Method of applying helical fins to tubes |
US3149667A (en) * | 1962-09-24 | 1964-09-22 | Young Radiator Co | Core-unit for vehicular-radiator-type heat exchanger and protective shields therefor |
US3239002A (en) * | 1964-01-06 | 1966-03-08 | Young Radiator Co | Tube formation for structuring heatexchanger core-units |
US5014776A (en) * | 1988-04-27 | 1991-05-14 | Joachim Hess | Heat emitting unit in form of a heater or cooler |
US6742581B2 (en) * | 2001-11-21 | 2004-06-01 | Fujikura Ltd. | Heat sink and fin module |
US20050211416A1 (en) * | 2003-10-17 | 2005-09-29 | Kenya Kawabata | Heat sink with fins and a method for manufacturing the same |
US20050257914A1 (en) * | 2004-05-07 | 2005-11-24 | Liang-Fu Huang | Skived-fin annular heat sink |
US20080060793A1 (en) * | 2006-09-08 | 2008-03-13 | Tsung-Hsien Huang | Cooler device |
US20100044009A1 (en) * | 2008-08-20 | 2010-02-25 | Shyh-Ming Chen | Annular heat dissipating device |
-
2009
- 2009-04-23 TW TW098206779U patent/TWM363020U/en not_active IP Right Cessation
- 2009-05-25 JP JP2009003396U patent/JP3152581U/en not_active Expired - Fee Related
- 2009-06-08 US US12/480,621 patent/US20100270014A1/en not_active Abandoned
- 2009-06-17 DE DE202009008498U patent/DE202009008498U1/en not_active Expired - Lifetime
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US5014776A (en) * | 1988-04-27 | 1991-05-14 | Joachim Hess | Heat emitting unit in form of a heater or cooler |
US6742581B2 (en) * | 2001-11-21 | 2004-06-01 | Fujikura Ltd. | Heat sink and fin module |
US20050211416A1 (en) * | 2003-10-17 | 2005-09-29 | Kenya Kawabata | Heat sink with fins and a method for manufacturing the same |
US20050257914A1 (en) * | 2004-05-07 | 2005-11-24 | Liang-Fu Huang | Skived-fin annular heat sink |
US20080060793A1 (en) * | 2006-09-08 | 2008-03-13 | Tsung-Hsien Huang | Cooler device |
US20100044009A1 (en) * | 2008-08-20 | 2010-02-25 | Shyh-Ming Chen | Annular heat dissipating device |
Cited By (10)
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US20120242837A1 (en) * | 2011-03-24 | 2012-09-27 | Kabushiki Kaisha Topcon | Omnidirectional Camera |
US8885016B2 (en) | 2011-03-24 | 2014-11-11 | Kabushiki Kaisha Topcon | Omnidirectional camera and lens hood |
US8934019B2 (en) * | 2011-03-24 | 2015-01-13 | Kabushiki Kaisha Topcon | Omnidirectional camera |
US9071767B2 (en) | 2011-03-24 | 2015-06-30 | Kabushiki Kaisha Topcon | Omnidirectional camera |
US9239159B2 (en) | 2011-12-16 | 2016-01-19 | Samsung Electronics Co., Ltd. | Heat-dissipating structure for lighting apparatus and lighting apparatus |
US20130233527A1 (en) * | 2012-03-08 | 2013-09-12 | Tsung-Hsien Huang | Tubular radiating seat integrally formed by one working procedure |
US20130335978A1 (en) * | 2012-06-13 | 2013-12-19 | Tsung-Hsien Huang | Led lamp assembly |
US9121587B2 (en) * | 2012-06-13 | 2015-09-01 | Tsung-Hsien Huang | LED lamp assembly |
CN102913876A (en) * | 2012-09-28 | 2013-02-06 | 深圳市慧盈通机电有限公司 | LED (light emitting diode) lamp, heat radiator used for LED lamp and machining process of heat radiator |
CN104684335A (en) * | 2013-11-26 | 2015-06-03 | 讯强电子(惠州)有限公司 | Heat dissipation device and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
JP3152581U (en) | 2009-08-06 |
DE202009008498U1 (en) | 2009-10-22 |
TWM363020U (en) | 2009-08-11 |
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Legal Events
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