US20130327501A1 - Phase change type heat dissipating device - Google Patents
Phase change type heat dissipating device Download PDFInfo
- Publication number
- US20130327501A1 US20130327501A1 US13/631,767 US201213631767A US2013327501A1 US 20130327501 A1 US20130327501 A1 US 20130327501A1 US 201213631767 A US201213631767 A US 201213631767A US 2013327501 A1 US2013327501 A1 US 2013327501A1
- Authority
- US
- United States
- Prior art keywords
- phase change
- generating component
- working medium
- heat generating
- dissipating device
- 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
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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
-
- 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
-
- 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
- H01L23/4275—Cooling by change of state, e.g. use of heat pipes by melting or evaporation of solids
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
- F28D2021/0029—Heat sinks
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
A phase change type heat dissipating device for dissipating heat from a heat generating component includes a cavity and a working medium positioned in the cavity. The working medium is a kind of electrically insulated phase change material, and represents solid state at normal temperature. The heat generating component is received in the cavity.
Description
- 1. Technical Field
- The present disclosure generally relates to dissipating devices, and more particularly to a dissipating device for removing heat from an electronic component by phase changing.
- 2. Description of the Related Art
- As electronic technology continues to advance, electronic components are made to provide faster operational speeds and greater functional capabilities. When an electronic component operates at a high speed for a long time, its temperature usually increases greatly. It is therefore desirable to provide a heat dissipating device for removing the generated heat quickly.
- A traditional dissipating device is disposing a metal radiator on a top of the electronic component. The radiator includes a base contacting with the electronic component and a plurality of fins attached to the base. Heat generated by the electronic component is conducted into the base and dissipated to ambient air from the fins.
- With respect to some electronic devices working intermittently, the time of operation under high loading is relative short than the time of standby or the time of operation under low loading. When the electronic device works under high loading, the heat generated by the electronic component in the electronic device is conducted to the air inside a casing of the electronic device quickly via the fins. This leads to a high increasing of the temperature of the casing of the electronic device a short time, and a negative affect of operation for the user. When the electronic device is standby or works under low loading, the heat generated by the electronic component is less, and the fins can not be used efficiently.
- Therefore, it is desirable to provide a dissipating device can overcome the above problem.
- Many aspects of the disclosure can be better understood with reference to the drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present phase change type heat dissipating device. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the views.
-
FIG. 1 is an assembled, isometric view of a phase change type heat dissipating device in accordance with an embodiment of the disclosure. -
FIG. 2 is an exploded view of the phase change type heat dissipating device ofFIG. 1 . -
FIG. 3 is a cross sectional view of the phase change type heat dissipating device ofFIG. 1 , taken along line III-III thereof. - Referring to
FIG. 1 toFIG. 3 , a phase change typeheat dissipating device 10 in accordance with an exemplary embodiment is provided for removing heat from aheat generating component 20 of an electronic device (not shown). The phase change typeheat dissipating device 10 includes atop cover 11, abottom plate 12 opposite to thetop cover 11 and a workingmedium 30 between thetop cover 11 and thebottom plate 12. - The
top cover 11 and thebottom plate 12 are flat. A size of thetop cover 11 is greater than that of thebottom plate 12. A plurality of lateral peripheries of thebottom plate 12 extends upward to formsidewalls 13. Top ends of thesidewalls 13 curve and extend horizontally to formlateral walls 131. A periphery of a bottom surface of thetop cover 11 is attached to thelateral walls 131, whereby acavity 14 is formed between thetop cover 11 and thebottom plate 12. Thebottom plate 12, thesidewalls 13 and thelateral walls 131 are integrally formed as a single piece. Thetop cover 11, thebottom plate 12, thesidewalls 13 and thelateral walls 131 are made from materials having good heat conductivity, such as aluminum and copper. Alternatively, thetop cover 11 and thebottom plate 12 can be a shell of other component (not shown) disposed in the electronic device. - The working
medium 30 is received in thecavity 14. The workingmedium 30 is electrically insulated and phase change material, and represents solid state at normal temperature. A volume of the workingmedium 30 under the normal temperature is smaller than a volume of thecavity 14. The workingmedium 30 can be liquefied to liquid at a certain temperature. A melting point of the workingmedium 30 is between a temperature of theheat generating component 20 under standby/low-loading and the temperature of theheat generating component 20 under high-loading. The workingmedium 30 can be hydrate, organic acid or esters etc. - When assembled, the
heat generating component 20 electrically connected to other components in the electronic device by being mounted on a printed circuit board, such as surface mounted technology (SMT). Thecavity 14 encloses theheat generating component 20. The workingmedium 30 directly contacts theheat generating component 20. In this embodiment, theheat generating component 20 is disposed on thebottom plate 12. - When the
heat generating component 20 works under high loading, heat generated by theheat generating component 20 is conducted to the workingmedium 30 quickly. The workingmedium 30 close to the heat generatedcomponent 20 is heated and liquefied to liquid firstly, then thermal convection is generated to prompt the workingmedium 30 relatively far from theheat generating component 20 and close to the inner surface of thecavity 14 being heated and liquefied. After that, when all of the workingmedium 30 is liquefied to liquid, heat is conducted to the inner surface of thecavity 14. In the process of liquefaction, heat can be temporarily stored in the workingmedium 30 and conducted to the external shell (not shown) of the electronic device slowly. Consequently, the surface of theheat generating component 20 is kept in a comparative low temperature, and the temperature of the external shell is avoided rising too fast in a short time, preventing affecting of the operation for the user. - When the
heat generating component 20 is under standby or works under low-loading, since the heat generating capacity of theheat generating component 20 is smaller than the heat dissipation capacity of the workingmedium 30 and the shell, the workingmedium 30 keeps conducting heat and exchanging heat to external air. In the above process of operation under high-loading and standby/under low-loading, the workingmedium 30 is used for conducting and exchanging heat. As a dissipation medium, the workingmedium 30 can be utilized fully. Due to the insulation characteristic of the workingmedium 30, the workingmedium 30 will not affect the working performance of theheat generating component 20. - Alternatively, when the
heat generating component 20 is engaged with a circuit board (not shown), the circuit board can be received in thecavity 14. The shape of thetop cover 11, and thebottom plate 12 are not limited to flat, and can be other shape, such as triangular pyramid. The shape of the workingmedium 30 can be designed according to the shape of thecavity 14 for being received in thecavity 14. - In summary, the
heat generating component 20 is received in thecavity 14 of the phase change typeheat dissipating device 10. The workingmedium 30 represents solid state at normal temperature. The workingmedium 30 is in contact with theheat generating component 20. When theheat generating component 20 works under high-loading, heat generated by theheat generating component 20 is conducted to the workingmedium 30 firstly, the workingmedium 30 is liquefied gradually for temporarily storing heat. Thus, heat is conducted to the external shell of the electronic device slowly, and the temperature of the external shell is avoided rising too fast in a short time for facilitating the operation of the user. When the phase change typeheat dissipating device 10 is under standby or works under low-loading, the workingmedium 30 keeps conducting heat and exchanging heat to external air. The workingmedium 30 turns to be solid state gradually for preparing to store heat in temporary in a next high loading status. - It is to be understood that the above-described embodiments are intended to illustrate rather than limit the disclosure. Variations may be made to the embodiments without departing from the spirit of the disclosure as claimed. The above-described embodiments illustrate the scope of the disclosure but do not restrict the scope of the disclosure.
Claims (7)
1. A phase change type heat dissipating device for removing heat from a heat generating component, comprising:
a casing enclosing the heat generating component;
a working medium received in the casing;
wherein the working medium is electrically insulated and phase change material, the working medium represents solid state at normal temperature and is liquefied when the heat generating component works under high loading and the temperature of the heat generating component is higher than the normal temperature.
2. The phase change type heat dissipating device of claim 1 , wherein the working medium is made from hydrate, organic acid or esters.
3. The phase change type heat dissipating device of claim 1 , wherein the heat generating component electrically connects to external power source via printed circuit board or wire.
4. The phase change type heat dissipating device of claim 1 , comprising a top cover and a bottom plate opposite to the top cover, the working medium being disposed between the top cover and the bottom plate.
5. The phase change type heat dissipating device of claim 4 , wherein a plurality of sidewalls extend upward from a periphery of the bottom plate, and lateral walls being curved and extending horizontally from the top ends of the sidewalls, a bottom surface periphery of the top cover being attached to the lateral walls to form the cavity.
6. The phase change type heat dissipating device of claim 4 , wherein the heat generating component is located at the bottom plate.
7. The phase change type heat dissipating device of claim 1 , wherein a melting point of the working medium is between a temperature of the heat generating component under standby/low-loading and a temperature of the heat generating component under high-loading.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW101120758 | 2012-06-08 | ||
TW101120758A TWI492341B (en) | 2012-06-08 | 2012-06-08 | Phase change type heat dissipating device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130327501A1 true US20130327501A1 (en) | 2013-12-12 |
Family
ID=49714364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/631,767 Abandoned US20130327501A1 (en) | 2012-06-08 | 2012-09-28 | Phase change type heat dissipating device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130327501A1 (en) |
JP (1) | JP2013258404A (en) |
TW (1) | TWI492341B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130327502A1 (en) * | 2012-06-08 | 2013-12-12 | Rung-An Chen | Phase change type heat dissipating device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI744195B (en) * | 2021-02-24 | 2021-10-21 | 創意電子股份有限公司 | Thermal peak suppression device |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4449580A (en) * | 1981-06-30 | 1984-05-22 | International Business Machines Corporation | Vertical wall elevated pressure heat dissipation system |
US4561011A (en) * | 1982-10-05 | 1985-12-24 | Mitsubishi Denki Kabushiki Kaisha | Dimensionally stable semiconductor device |
US5455458A (en) * | 1993-08-09 | 1995-10-03 | Hughes Aircraft Company | Phase change cooling of semiconductor power modules |
US6269866B1 (en) * | 1997-02-13 | 2001-08-07 | The Furukawa Electric Co., Ltd. | Cooling device with heat pipe |
US6703128B2 (en) * | 2002-02-15 | 2004-03-09 | Delphi Technologies, Inc. | Thermally-capacitive phase change encapsulant for electronic devices |
US20050269063A1 (en) * | 2003-02-18 | 2005-12-08 | Jon Zuo | Heat pipe having a wick structure containing phase change materials |
US20060209516A1 (en) * | 2005-03-17 | 2006-09-21 | Chengalva Suresh K | Electronic assembly with integral thermal transient suppression |
US20080029247A1 (en) * | 2006-08-02 | 2008-02-07 | Takayuki Nozaki | Temperature regulating member |
US20090109623A1 (en) * | 2007-10-31 | 2009-04-30 | Forcecon Technology Co., Ltd. | Heat-radiating module with composite phase-change heat-radiating efficiency |
US20120280382A1 (en) * | 2011-05-02 | 2012-11-08 | Samsung Electronics Co., Ltd. | Semiconductor packages |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6088556U (en) * | 1983-11-24 | 1985-06-18 | 日本無線株式会社 | Electrical parts with cooler |
ES8500982A1 (en) * | 1983-12-01 | 1984-11-01 | Programa Energetico Unesa Ini | Thermal energy storage material |
JP2845221B2 (en) * | 1996-10-25 | 1999-01-13 | 日本電気株式会社 | Latent heat type heat sink |
US8390248B2 (en) * | 2007-07-30 | 2013-03-05 | Kyocera Corporation | Electric power conversion apparatus and manufacturing method for the apparatus |
TW201029557A (en) * | 2009-01-22 | 2010-08-01 | Foxconn Tech Co Ltd | Heat dissipation device |
JP2012099612A (en) * | 2010-11-01 | 2012-05-24 | Denso Corp | Semiconductor device |
-
2012
- 2012-06-08 TW TW101120758A patent/TWI492341B/en not_active IP Right Cessation
- 2012-09-28 US US13/631,767 patent/US20130327501A1/en not_active Abandoned
-
2013
- 2013-06-04 JP JP2013117605A patent/JP2013258404A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4449580A (en) * | 1981-06-30 | 1984-05-22 | International Business Machines Corporation | Vertical wall elevated pressure heat dissipation system |
US4561011A (en) * | 1982-10-05 | 1985-12-24 | Mitsubishi Denki Kabushiki Kaisha | Dimensionally stable semiconductor device |
US5455458A (en) * | 1993-08-09 | 1995-10-03 | Hughes Aircraft Company | Phase change cooling of semiconductor power modules |
US6269866B1 (en) * | 1997-02-13 | 2001-08-07 | The Furukawa Electric Co., Ltd. | Cooling device with heat pipe |
US6703128B2 (en) * | 2002-02-15 | 2004-03-09 | Delphi Technologies, Inc. | Thermally-capacitive phase change encapsulant for electronic devices |
US20050269063A1 (en) * | 2003-02-18 | 2005-12-08 | Jon Zuo | Heat pipe having a wick structure containing phase change materials |
US20060209516A1 (en) * | 2005-03-17 | 2006-09-21 | Chengalva Suresh K | Electronic assembly with integral thermal transient suppression |
US20080029247A1 (en) * | 2006-08-02 | 2008-02-07 | Takayuki Nozaki | Temperature regulating member |
US20090109623A1 (en) * | 2007-10-31 | 2009-04-30 | Forcecon Technology Co., Ltd. | Heat-radiating module with composite phase-change heat-radiating efficiency |
US20120280382A1 (en) * | 2011-05-02 | 2012-11-08 | Samsung Electronics Co., Ltd. | Semiconductor packages |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130327502A1 (en) * | 2012-06-08 | 2013-12-12 | Rung-An Chen | Phase change type heat dissipating device |
US9046305B2 (en) * | 2012-06-08 | 2015-06-02 | Foxconn Technology Co., Ltd. | Phase change type heat dissipating device |
Also Published As
Publication number | Publication date |
---|---|
TW201351583A (en) | 2013-12-16 |
JP2013258404A (en) | 2013-12-26 |
TWI492341B (en) | 2015-07-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FOXCONN TECHNOLOGY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, RUNG-AN;REEL/FRAME:029051/0262 Effective date: 20120926 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |