US20100155023A1 - Heat dissipation apparatus having heat pipes inserted therein - Google Patents
Heat dissipation apparatus having heat pipes inserted therein Download PDFInfo
- Publication number
- US20100155023A1 US20100155023A1 US12/423,816 US42381609A US2010155023A1 US 20100155023 A1 US20100155023 A1 US 20100155023A1 US 42381609 A US42381609 A US 42381609A US 2010155023 A1 US2010155023 A1 US 2010155023A1
- Authority
- US
- United States
- Prior art keywords
- fin group
- heat
- fan
- heat dissipation
- dissipation apparatus
- 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
Links
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 43
- 230000005494 condensation Effects 0.000 claims abstract description 34
- 238000009833 condensation Methods 0.000 claims abstract description 34
- 230000008020 evaporation Effects 0.000 claims abstract description 11
- 238000001704 evaporation Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
- H01L23/3672—Foil-like cooling fins or heat sinks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/427—Cooling by change of state, e.g. use of heat pipes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/467—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the disclosure generally relates to heat dissipation apparatuses and, particularly, to a heat dissipation apparatus utilizing a plurality of heat pipes for dissipating heat generated by electronic components.
- a typical heat dissipation apparatus in one typical heat dissipation apparatus, it includes a heat sink consisting of a plurality of fins arranged in a circle and a plurality of heat pipes having condensation sections inserted through the fins of the heat sink.
- the condensation sections cooperatively form a circular configuration.
- the condensation sections are inserted into the fins of the heat sink by moving the fins over the condensation sections of the heat pipes one by one.
- the movement of the condensation sections of the heat pipes through holes of the fins may scrape solder out of the holes of the fins, whereby after assembly, the condensation sections of the heat pipes cannot have an intimate and firm connection with the fins, whereby the heat dissipation effectiveness and structural strength of the heat dissipation apparatus can not be as good as expected.
- FIG. 1 is an assembled, isometric view of a heat dissipation apparatus in accordance with an embodiment of the disclosure.
- FIG. 2 is an exploded, isometric view of the heat dissipation apparatus of FIG. 1 .
- FIG. 3 is another exploded view of the heat dissipation apparatus of FIG. 1 .
- FIG. 4 is an assembled view of the heat dissipation apparatus of FIG. 1 , with a cover separated therefrom.
- FIG. 5 is a side view of the heat dissipation apparatus of FIG. 1 .
- the heat dissipation apparatus includes a base 10 , a heat sink 30 , a heat pipe assembly 20 thermally connecting the base 10 with the heat sink 30 , a fan assembly 40 embedded in a top of the heat sink 30 and a cover 50 engaging a periphery of the heat sink 30 to cover the fan assembly 40 .
- the base 10 is made of a material with high heat conductivity, such as copper and aluminum.
- the base 10 comprises a first plate 12 and a second plate 14 attached to a bottom surface of the first plate 12 .
- the first plate 12 defines two elongated receiving grooves 120 in a middle part of the bottom surface thereof.
- the two receiving grooves 120 are separated, parallel to each other and adapted for receiving the heat pipe assembly 20 .
- Four mounting hole 122 are respectively defined in four corners of the first base 12 and adapted for receiving fixtures (not shown) therein to secure the heat sink assembly to a heat-dissipating electronic component (not shown) mounted on a printed circuit board (not shown).
- the rectangular second base 14 is smaller than the first plate 12 and thermally connects with the heat-generating electronic component at a bottom surface thereof.
- Two elongated receiving grooves 140 are defined in the top surface of the second plate 14 for cooperating with the receiving grooves 120 of the first plate 12 to accommodate the heat pipe assembly 20 .
- the heat pipe assembly 20 includes two bent heat pipes 22 .
- Each heat pipe 22 is bent to have an evaporation section 222 , a condensation section 224 and an adiabatic section 226 interconnecting the evaporation section 222 and the condensation section 224 .
- the evaporation section 222 is received in one of receiving channels formed by the corresponding receiving grooves 120 , 140 of the first and second plates 12 , 14 .
- the adiabatic section 226 extends upwardly from one end of the evaporation section 222 .
- the condensation section 224 is bent into a substantially semicircular configuration, and extends from an upper end of the adiabatic section 226 along a horizontal plane.
- the condensation sections 224 of the heat pipes 22 are approximately at the same level and have their free ends join each other to cooperatively form a circle.
- the heat sink 30 is annular and includes a first fin group 32 and a second fin group 34 mounted on a top of the first fin group 32 .
- the first fin group 32 has a bowl-shaped configuration with a breached sector in a periphery thereof for receiving the adiabatic sections 226 of the two heat pipes 22 .
- the first fin group 32 defines a circular concave part 324 in a central part thereof and an annular top surface (not labeled) surrounding the concave part 324 .
- the annular top surface is located at a level higher than that of the concave part 324 .
- a through hole 326 is defined vertically in a center of the concave part 324 for airflow from the fan assembly 40 flowing therethrough to reach the base 10 .
- the first fin group 32 consists of a plurality of first fins 32 each having a substantially L-shaped main body and extending outwardly from the through hole 326 along a radial direction.
- the first fins 320 are perpendicularly arranged on the base 10 with central parts of lower ends of the first fins 320 standing on the base 10 .
- An annular first groove 322 is defined in the annular top surface of the first fin group 32 and extends along a periphery direction of the heat sink 30 to surround the concave part 324 .
- the first groove 322 has a semicircular cross section.
- a plurality of flanges extend perpendicularly from top ends of the first fins 320 to form the annular top surface of the first fin group 32 .
- the top surface of the first fin group 32 has a semicircular contacting face in the first groove 322 for contacting the heat pipes 20 , and two upper, annular engaging faces at two opposite sides of the first groove 322 for engaging with the second fin group 34 .
- the engaging faces of the first group 32 face upwardly.
- the second fin group 34 is ring-shaped and has a breached sector corresponding to the breached sector of the first fin group 32 .
- the second fin group 34 has an annular bottom face and consists of a plurality of second fins 340 .
- the annular bottom face has the same configuration with the annular top face of the first fin group 32 and fitly engages the annular top face of the first fin group 32 .
- a second groove 342 is defined in the annular bottom face of the second fin group 34 and cooperate with the first groove 322 of the first fin group 32 to form a circular channel through the heat sink 30 , which can wholly receive the condensation sections 224 of the heat pipes 22 therein.
- Each second fin 340 is substantially trapeziform, arranged along a radial direction and perpendicular to the base 10 and the annular top surface of the first fin group 32 .
- the second fin group 34 extends a plurality of flanges from the bottom thereof to form an annular bottom surface.
- the bottom surface has a semicircular contacting face in the second groove 342 for contacting the heat pipes 20 , and two lower, annular engaging faces at two opposite sides of the second groove 342 for engaging with the engaging faces of the first fin group 32 .
- the engaging faces of the second group 34 face downwardly.
- the breached sectors of the first and second fin group 32 , 34 are aligned with each other and cooperatively form a breached sector of the heat sink 30 .
- the fan assembly 40 comprises a fan 42 and a mounting plate 44 fixed to a top of the fan 42 .
- the cover 50 comprises an annular frame 52 engaging a periphery of the second fin group 34 and a circular lattice window 54 formed on a top of the frame 52 .
- the adiabatic sections 226 of the heat pipes 22 are received in the breached sector of the heat sink 30 .
- the condensation sections 224 of the heat pipes 22 are positioned in the first groove 322 with a lower portion thereof contacting the contacting face of the first fin group 32 .
- the second fin group 34 is positioned on the first fin group 32 with the contacting face thereof thermally contacting an upper portion of the condensation sections 224 .
- the condensation sections 224 of the heat pipes 20 are sandwiched between the first and second fin groups 32 , 34 and soldered thereto.
- the condensation sections 224 are received in the channel cooperatively formed by the first and second grooves 322 , 342 by simply putting the condensation sections 224 in the first groove 322 and then putting the second fin group 34 on the first fin group 32 , the mounting of the condensation sections 224 in the channel will not scrape solder out of the grooves 322 , 342 .
- the engaging faces of the second fin group 34 contact and secure with the engaging faces of the first fin group 32 at two sides of the condensation sections 224 of the heat pipes 20 by soldiering.
- the fan assembly 40 is placed in the concave part 324 of the first fin group 32 and surrounded by the condensation sections 224 of the heat pipes 22 .
- a lower part of the fan 42 is received in the concave part 324 of the first fin group 32 and surrounded by the annular top surface of the first fin group 32 .
- An upper part of the fan 42 is enclosed and surrounded by the second fin group 34 .
- the cover 50 covering the heat sink 30 encloses the second fin group 34 and the condensation sections 224 of the heat pipes 22 therein.
- the mounting plate 44 of the fan assembly 40 engages the lattice window 54 of the cover 50 to securely suspend the fan 42 in the heat sink 30 .
- the base 10 absorbs heat from the heat generating electronic component, which is transferred to the heat sink 30 via the heat pipe assembly 20 .
- the fan 42 produces airflow through the heat sink 30 , and dissipates the heat from the heat sink 30 into ambient air.
- the heat sink 30 since the heat sink 30 includes the two fin groups 32 , 34 , the heat pipe assembly 20 can be assembled into the first and second fin groups 32 , 34 easily. Thus, the heat dissipation apparatus is conveniently assembled even though the heat pipes 22 are bent to have semicircular condensation sections 224 , respectively.
- the fan 42 is mounted inside the heat sink 30 and enclosed by the heat sink 30 , which makes the airflow produced by the fan 42 flow throughout the first and second fin groups 32 , 34 .
- the heat sink 30 enclosing the fan 42 severs as a part of a housing for accommodating the fan 42 , which saves material for constructing the heat dissipation apparatus and enable the heat dissipation apparatus to have a compact structure.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
- 1. Technical Field
- The disclosure generally relates to heat dissipation apparatuses and, particularly, to a heat dissipation apparatus utilizing a plurality of heat pipes for dissipating heat generated by electronic components.
- 2. Description of Related Art
- It is well known that if heat generated by electronic components, such as integrated circuit chips, during operation is not efficiently dissipated, these electronic components may suffer damage. Thus, heat dissipation apparatuses are often used to cool the electronic components.
- In one typical heat dissipation apparatus, it includes a heat sink consisting of a plurality of fins arranged in a circle and a plurality of heat pipes having condensation sections inserted through the fins of the heat sink. The condensation sections cooperatively form a circular configuration. The condensation sections are inserted into the fins of the heat sink by moving the fins over the condensation sections of the heat pipes one by one. Such an assembling process is time consuming and laborious. Furthermore, the movement of the condensation sections of the heat pipes through holes of the fins may scrape solder out of the holes of the fins, whereby after assembly, the condensation sections of the heat pipes cannot have an intimate and firm connection with the fins, whereby the heat dissipation effectiveness and structural strength of the heat dissipation apparatus can not be as good as expected.
- What is needed, therefore, is a heat dissipation apparatus which overcomes the above-described limitations.
- Many aspects of the present heat dissipation apparatus can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the disclosed heat dissipation apparatus. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 is an assembled, isometric view of a heat dissipation apparatus in accordance with an embodiment of the disclosure. -
FIG. 2 is an exploded, isometric view of the heat dissipation apparatus ofFIG. 1 . -
FIG. 3 is another exploded view of the heat dissipation apparatus ofFIG. 1 . -
FIG. 4 is an assembled view of the heat dissipation apparatus ofFIG. 1 , with a cover separated therefrom. -
FIG. 5 is a side view of the heat dissipation apparatus ofFIG. 1 . - Referring to
FIGS. 1 and 2 , a heat dissipation apparatus in accordance with an embodiment of the disclosure is shown. The heat dissipation apparatus includes abase 10, aheat sink 30, aheat pipe assembly 20 thermally connecting thebase 10 with theheat sink 30, afan assembly 40 embedded in a top of theheat sink 30 and acover 50 engaging a periphery of theheat sink 30 to cover thefan assembly 40. - The
base 10 is made of a material with high heat conductivity, such as copper and aluminum. Thebase 10 comprises afirst plate 12 and asecond plate 14 attached to a bottom surface of thefirst plate 12. Thefirst plate 12 defines twoelongated receiving grooves 120 in a middle part of the bottom surface thereof. The two receivinggrooves 120 are separated, parallel to each other and adapted for receiving theheat pipe assembly 20. Fourmounting hole 122 are respectively defined in four corners of thefirst base 12 and adapted for receiving fixtures (not shown) therein to secure the heat sink assembly to a heat-dissipating electronic component (not shown) mounted on a printed circuit board (not shown). The rectangularsecond base 14 is smaller than thefirst plate 12 and thermally connects with the heat-generating electronic component at a bottom surface thereof. Twoelongated receiving grooves 140 are defined in the top surface of thesecond plate 14 for cooperating with the receivinggrooves 120 of thefirst plate 12 to accommodate theheat pipe assembly 20. - The
heat pipe assembly 20 includes twobent heat pipes 22. Eachheat pipe 22 is bent to have anevaporation section 222, acondensation section 224 and anadiabatic section 226 interconnecting theevaporation section 222 and thecondensation section 224. Theevaporation section 222 is received in one of receiving channels formed by thecorresponding receiving grooves second plates adiabatic section 226 extends upwardly from one end of theevaporation section 222. Thecondensation section 224 is bent into a substantially semicircular configuration, and extends from an upper end of theadiabatic section 226 along a horizontal plane. Thecondensation sections 224 of theheat pipes 22 are approximately at the same level and have their free ends join each other to cooperatively form a circle. - Also referring to
FIGS. 3 and 4 , theheat sink 30 is annular and includes afirst fin group 32 and asecond fin group 34 mounted on a top of thefirst fin group 32. Thefirst fin group 32 has a bowl-shaped configuration with a breached sector in a periphery thereof for receiving theadiabatic sections 226 of the twoheat pipes 22. Thefirst fin group 32 defines a circularconcave part 324 in a central part thereof and an annular top surface (not labeled) surrounding theconcave part 324. The annular top surface is located at a level higher than that of theconcave part 324. A throughhole 326 is defined vertically in a center of theconcave part 324 for airflow from thefan assembly 40 flowing therethrough to reach thebase 10. Thefirst fin group 32 consists of a plurality offirst fins 32 each having a substantially L-shaped main body and extending outwardly from thethrough hole 326 along a radial direction. Thefirst fins 320 are perpendicularly arranged on thebase 10 with central parts of lower ends of thefirst fins 320 standing on thebase 10. An annularfirst groove 322 is defined in the annular top surface of thefirst fin group 32 and extends along a periphery direction of theheat sink 30 to surround theconcave part 324. Thefirst groove 322 has a semicircular cross section. To increase a contacting area of thefirst fins 320 and theheat pipes 22 and thesecond fin group 34, a plurality of flanges (not labeled) extend perpendicularly from top ends of thefirst fins 320 to form the annular top surface of thefirst fin group 32. The top surface of thefirst fin group 32 has a semicircular contacting face in thefirst groove 322 for contacting theheat pipes 20, and two upper, annular engaging faces at two opposite sides of thefirst groove 322 for engaging with thesecond fin group 34. The engaging faces of thefirst group 32 face upwardly. - The
second fin group 34 is ring-shaped and has a breached sector corresponding to the breached sector of thefirst fin group 32. Thesecond fin group 34 has an annular bottom face and consists of a plurality ofsecond fins 340. The annular bottom face has the same configuration with the annular top face of thefirst fin group 32 and fitly engages the annular top face of thefirst fin group 32. Asecond groove 342 is defined in the annular bottom face of thesecond fin group 34 and cooperate with thefirst groove 322 of thefirst fin group 32 to form a circular channel through theheat sink 30, which can wholly receive thecondensation sections 224 of theheat pipes 22 therein. Eachsecond fin 340 is substantially trapeziform, arranged along a radial direction and perpendicular to thebase 10 and the annular top surface of thefirst fin group 32. Thesecond fin group 34 extends a plurality of flanges from the bottom thereof to form an annular bottom surface. The bottom surface has a semicircular contacting face in thesecond groove 342 for contacting theheat pipes 20, and two lower, annular engaging faces at two opposite sides of thesecond groove 342 for engaging with the engaging faces of thefirst fin group 32. The engaging faces of thesecond group 34 face downwardly. In addition, the breached sectors of the first andsecond fin group heat sink 30. - The
fan assembly 40 comprises afan 42 and amounting plate 44 fixed to a top of thefan 42. Thecover 50 comprises anannular frame 52 engaging a periphery of thesecond fin group 34 and acircular lattice window 54 formed on a top of theframe 52. - In assembly of the heat dissipation apparatus, the
adiabatic sections 226 of theheat pipes 22 are received in the breached sector of theheat sink 30. Thecondensation sections 224 of theheat pipes 22 are positioned in thefirst groove 322 with a lower portion thereof contacting the contacting face of thefirst fin group 32. Thesecond fin group 34 is positioned on thefirst fin group 32 with the contacting face thereof thermally contacting an upper portion of thecondensation sections 224. Thecondensation sections 224 of theheat pipes 20 are sandwiched between the first andsecond fin groups condensation sections 224 are received in the channel cooperatively formed by the first andsecond grooves condensation sections 224 in thefirst groove 322 and then putting thesecond fin group 34 on thefirst fin group 32, the mounting of thecondensation sections 224 in the channel will not scrape solder out of thegrooves second fin group 34 contact and secure with the engaging faces of thefirst fin group 32 at two sides of thecondensation sections 224 of theheat pipes 20 by soldiering. Thefan assembly 40 is placed in theconcave part 324 of thefirst fin group 32 and surrounded by thecondensation sections 224 of theheat pipes 22. A lower part of thefan 42 is received in theconcave part 324 of thefirst fin group 32 and surrounded by the annular top surface of thefirst fin group 32. An upper part of thefan 42 is enclosed and surrounded by thesecond fin group 34. Thecover 50 covering theheat sink 30 encloses thesecond fin group 34 and thecondensation sections 224 of theheat pipes 22 therein. The mountingplate 44 of thefan assembly 40 engages thelattice window 54 of thecover 50 to securely suspend thefan 42 in theheat sink 30. - During operation of the heat dissipation apparatus, the
base 10 absorbs heat from the heat generating electronic component, which is transferred to theheat sink 30 via theheat pipe assembly 20. Thefan 42 produces airflow through theheat sink 30, and dissipates the heat from theheat sink 30 into ambient air. - In the heat dissipation apparatus, since the
heat sink 30 includes the twofin groups heat pipe assembly 20 can be assembled into the first andsecond fin groups heat pipes 22 are bent to havesemicircular condensation sections 224, respectively. In addition, thefan 42 is mounted inside theheat sink 30 and enclosed by theheat sink 30, which makes the airflow produced by thefan 42 flow throughout the first andsecond fin groups heat sink 30 enclosing thefan 42 severs as a part of a housing for accommodating thefan 42, which saves material for constructing the heat dissipation apparatus and enable the heat dissipation apparatus to have a compact structure. - It is to be understood, however, that even though numerous characteristics and advantages of the present embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810306445.7A CN101765351B (en) | 2008-12-22 | 2008-12-22 | Heat-dissipation device |
CN200810306445.7 | 2008-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100155023A1 true US20100155023A1 (en) | 2010-06-24 |
Family
ID=42264367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/423,816 Abandoned US20100155023A1 (en) | 2008-12-22 | 2009-04-15 | Heat dissipation apparatus having heat pipes inserted therein |
Country Status (2)
Country | Link |
---|---|
US (1) | US20100155023A1 (en) |
CN (1) | CN101765351B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100097763A1 (en) * | 2008-10-20 | 2010-04-22 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US20110024090A1 (en) * | 2009-08-03 | 2011-02-03 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US20110083830A1 (en) * | 2009-10-12 | 2011-04-14 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US20120055653A1 (en) * | 2010-09-03 | 2012-03-08 | Wistron Corporation | Heat Dissipating Unit And Heat Dissipating Device Having The Heat Dissipating Unit |
JP2019217596A (en) * | 2018-06-20 | 2019-12-26 | 株式会社マキタ | Electric power tool and portable circular saw |
US10875170B2 (en) | 2017-09-13 | 2020-12-29 | Makita Corporation | Electric power tool |
US11219957B2 (en) | 2018-06-20 | 2022-01-11 | Makita Corporation | Controller and power tool including the same |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102819302A (en) * | 2011-06-09 | 2012-12-12 | 富准精密工业(深圳)有限公司 | Radiator |
CN106211704B (en) * | 2015-05-08 | 2020-01-03 | 技嘉科技股份有限公司 | Combined heat radiation module |
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US20020017378A1 (en) * | 2000-08-09 | 2002-02-14 | Hu Chin Yi | Heat ventilation device |
US20020162647A1 (en) * | 2001-05-01 | 2002-11-07 | Wagner Guy R. | Heat sink device manufacture |
US6698499B1 (en) * | 1996-02-01 | 2004-03-02 | Agilent Technologies, Inc. | Cooling device and method |
US6874565B2 (en) * | 2001-12-03 | 2005-04-05 | Agilent Technologies, Inc. | Cooling apparatus |
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USD561711S1 (en) * | 2006-12-08 | 2008-02-12 | Thermaltake Technology Co., Ltd. | Heat sink |
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US20090242176A1 (en) * | 2008-03-27 | 2009-10-01 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device with heat pipe |
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CN2762348Y (en) * | 2004-12-31 | 2006-03-01 | 协禧电机股份有限公司 | Heat sink |
CN101212884B (en) * | 2006-12-27 | 2011-06-08 | 富准精密工业(深圳)有限公司 | Heat radiator |
CN201018750Y (en) * | 2007-03-14 | 2008-02-06 | 讯凯国际股份有限公司 | Fin annular-arranged heat radiator |
CN101316495B (en) * | 2007-06-01 | 2011-12-21 | 富准精密工业(深圳)有限公司 | Heat sink assembly |
-
2008
- 2008-12-22 CN CN200810306445.7A patent/CN101765351B/en not_active Expired - Fee Related
-
2009
- 2009-04-15 US US12/423,816 patent/US20100155023A1/en not_active Abandoned
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US8579019B2 (en) * | 2009-08-03 | 2013-11-12 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US20110083830A1 (en) * | 2009-10-12 | 2011-04-14 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device |
US8430153B2 (en) * | 2009-10-12 | 2013-04-30 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Heat dissipation device having heat sink enclosing conductive member therein |
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US10875170B2 (en) | 2017-09-13 | 2020-12-29 | Makita Corporation | Electric power tool |
JP2019217596A (en) * | 2018-06-20 | 2019-12-26 | 株式会社マキタ | Electric power tool and portable circular saw |
US11219957B2 (en) | 2018-06-20 | 2022-01-11 | Makita Corporation | Controller and power tool including the same |
JP7066542B2 (en) | 2018-06-20 | 2022-05-13 | 株式会社マキタ | Power tools and portable circular saws |
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CN101765351A (en) | 2010-06-30 |
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