WO2010014101A1 - Dispositif de refroidissement pour un dispositif d'affichage d'ordinateur - Google Patents

Dispositif de refroidissement pour un dispositif d'affichage d'ordinateur Download PDF

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Publication number
WO2010014101A1
WO2010014101A1 PCT/US2008/071789 US2008071789W WO2010014101A1 WO 2010014101 A1 WO2010014101 A1 WO 2010014101A1 US 2008071789 W US2008071789 W US 2008071789W WO 2010014101 A1 WO2010014101 A1 WO 2010014101A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling device
liquid coolant
light source
generating light
heat generating
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.)
Ceased
Application number
PCT/US2008/071789
Other languages
English (en)
Inventor
Mark S. Tracy
David A. Moore
Jeffrey A. Lev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Development Co LP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP
Priority to PCT/US2008/071789 priority Critical patent/WO2010014101A1/fr
Priority to TW098122394A priority patent/TW201009550A/zh
Publication of WO2010014101A1 publication Critical patent/WO2010014101A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/20—Indexing scheme relating to G06F1/20
    • G06F2200/201—Cooling arrangements using cooling fluid

Definitions

  • One embodiment of invention relates to a cooling device for a computer display having a heat generating light source.
  • the cooling device includes a thermal interface material configured to interface with the heat generating light source of the computer display, and a liquid coolant passage, disposed at least one of within and adjacent to the thermal interface material, configured to permit flow of liquid coolant to dissipate heat generated by the heat generating light source.
  • Another embodiment of invention relates to a computer with a display that includes a heat generating light source, and a cooling device.
  • the cooling device includes a thermal interface material configured to interface with a heat generating light source and a liquid coolant passage.
  • the liquid coolant passage is disposed at least one of within and adjacent to the thermal interface material.
  • the liquid coolant passage is configured to permit flow of liquid coolant to dissipate heat generated by the heat generating light source.
  • FIG. 1 is a perspective view of a computer display.
  • FIG. 2 is a schematic side view of a cooling device for a computer display according to an embodiment.
  • FIG. 3 is a top view of a back side of a computer display with a cooling device, according to an embodiment.
  • Computer display 10 can include a liquid crystal display panel (LCD) 12.
  • the LCD can be backlit with at least one heat generating light source 14 (not shown in FIG. 1).
  • a plurality of heat generating light sources 14 can be arranged, such as in a pattern or array, to provide backlighting for the display 10.
  • a display 10, such as the one shown in the example of FIG. 1, can generate a large amount of heat due to the relatively large amount of energy consumed by the display, particularly the heat generating light sources 14 of the display.
  • FIGS. 2 - 3 An exemplary embodiment of a cooling device 20 is illustrated in the examples of FIGS. 2 - 3. Such a cooling device 20 can be used to extend the lifetime of a display 10, such as by minimizing the degradation of the display 10 that is caused by elevated temperatures created by power consumption by a heat generating light source 14.
  • the heat generating light source 14 can be, for example, an LED.
  • the heat generating light source 14 can be mounted on a printed circuit board (PCB) 34 that is located within a computer display 10, as shown in the example of FIG. 2.
  • PCB printed circuit board
  • a cooling device 20 for a heat generating light source 14 of a display can include a thermal interface material (TIM) 22 and a coolant passage 24.
  • TIM thermal interface material
  • FIG. 2 shows a plurality of heat generating light sources 14 that can be used to backlight a display 10.
  • the TIM 22 can be configured to interface with a heat generating light source 14 of a computer display 10 in order to conduct heat from the heat generating light source 14, as indicated by the arrows A in the example of FIG. 2.
  • the heat generated by the light source 14 can also be transferred through the PCB 34 to the TIM 22.
  • the TIM 22 can be made of, for example, a material with a relatively high thermal conductivity. Furthermore, the TIM 22 can be electrically insulative so that TIM 22 does not conduct electricity from the heat generating light source 14 and/or the PCB 34.
  • the TIM 22 can be made of a material that conforms to the internal surfaces of computer display 10. For example, the TIM 22 can be arranged so that no gap, such as an air gap, exists between TIM 22 and the heat generating light source 14 or the PCB 34 in order to efficiently heat transfer from the heat generating light source 14.
  • the TIM 22 can be, for example, an elastomeric thermal interface material.
  • the coolant passage 24 can be arranged so that the coolant passage 24 is disposed at least one of within and/or adjacent to the TIM 22.
  • the coolant passage 24 can be configured to permit flow of a coolant through the coolant passage 24 so as to dissipate heat generated by a heat generating light source 14. As shown in the example of FIG. 3, the coolant passage 24 can be arranged to maximize the surface area of the coolant passage 24 that is within and/or adjacent to the TIM 22. For example, the coolant passage 24 can be arranged in a snaking configuration, a zig-zag configuration, coil-like configuration, or other configuration used in the art.
  • a portion of coolant passage 24 can be enclosed by a pipe or tube 26 to further aid in the dissipation of heat generated by the heat generating light source 14.
  • the pipe 26 can be arranged to be within and/or adjacent to the TIM 22, as shown in the example of FIG. 2.
  • the pipe 26 can be configured to encase at least a portion of the coolant passage 24, as shown in the example of FIG. 2.
  • the pipe 26 can be made of a material with a relatively high thermal conductivity, such as, for example, copper.
  • the coolant can be, for example, a fluid, such as a liquid.
  • a liquid coolant is a water based mixture, such as a mixture of propylene glycol and water.
  • a particular example of such a mixture is Showbrine SLP-F manufactured by Showa Water Industries Co., Ltd.
  • the cooling device 20 can include a pump 30 that is configured to circulate coolant through the coolant passage 24.
  • the pump 30 can be configured to circulate the coolant through the coolant passage 24 in the direction indicated by arrows D in FIG. 2.
  • the cooling device 20 can include a heat exchanger 32 to remove heat absorbed from the TIM 22 by coolant in the coolant passage 24.
  • the heat exchanger 32 can be, for example, an evaporator or other type of heat exchanger used in the art.
  • the heat exchanger 32 can be naturally air cooled, forced air cooled, liquid cooled, or any combination thereof.
  • the pump 30 and heat exchanger 32, when present in a cooling device 20, can be located inside of the interior of a display 10 or outside of the interior of a display, as in the example of FIG. 3.
  • the cooling device 20 can also be configured to dissipate heat generated by other components contained within a computer, such as, for example, a central processing unit (CPU), a graphics processing unit (GPU), or other computer component.
  • a computer such as, for example, a central processing unit (CPU), a graphics processing unit (GPU), or other computer component.
  • FIG. 2 shows that a CPU 36 or a GPU 36 can be cooled by the cooling device 20.
  • Such components may have previously had their own dedicated cooling system but the use of the cooling device 20 to cool other components in addition to the display 10 of a computer can provide efficient cooling of the display and computer components without the use of redundant cooling systems, additional parts, and additional cost.
  • the cooling device 20 can be used in various computer configurations that include a display utilizing a heat generating light source 14, such as, for example, notebook PC's, desktop computers, desktop gaming systems or gaming notebook computers, network terminals, or other computers with backlit displays.
  • a display utilizing a heat generating light source 14 such as, for example, notebook PC's, desktop computers, desktop gaming systems or gaming notebook computers, network terminals, or other computers with backlit displays.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention porte sur un dispositif de refroidissement, pour un dispositif d'affichage d'ordinateur qui possède une source de lumière générant de la chaleur, qui peut comprendre un matériau d'interface thermique configuré pour venir en interface avec la source de lumière générant de la chaleur d'un dispositif d'affichage d'ordinateur et un passage de liquide réfrigérant qui est disposé soit à l'intérieur du matériau d'interface thermique, soit adjacent à celui-ci. Le passage de liquide réfrigérant peut être configuré pour permettre l'écoulement d'un liquide réfrigérant pour dissiper de la chaleur générée par la source de lumière générant de la chaleur.
PCT/US2008/071789 2008-07-31 2008-07-31 Dispositif de refroidissement pour un dispositif d'affichage d'ordinateur Ceased WO2010014101A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2008/071789 WO2010014101A1 (fr) 2008-07-31 2008-07-31 Dispositif de refroidissement pour un dispositif d'affichage d'ordinateur
TW098122394A TW201009550A (en) 2008-07-31 2009-07-02 Cooling device for computer display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2008/071789 WO2010014101A1 (fr) 2008-07-31 2008-07-31 Dispositif de refroidissement pour un dispositif d'affichage d'ordinateur

Publications (1)

Publication Number Publication Date
WO2010014101A1 true WO2010014101A1 (fr) 2010-02-04

Family

ID=41610626

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/071789 Ceased WO2010014101A1 (fr) 2008-07-31 2008-07-31 Dispositif de refroidissement pour un dispositif d'affichage d'ordinateur

Country Status (2)

Country Link
TW (1) TW201009550A (fr)
WO (1) WO2010014101A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2498787A (en) * 2012-01-29 2013-07-31 Guy Hutchins Cooling device for computer displays
US10174260B2 (en) 2011-06-10 2019-01-08 Steeper Energy Aps Process and apparatus for producing liquid hydrocarbon

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5502582A (en) * 1994-09-02 1996-03-26 Aavid Laboratories, Inc. Light source cooler for LCD monitor
US20020109969A1 (en) * 2001-02-12 2002-08-15 Innowert Service-Center In Gesellschaft Fur Innovation Und Kommunikationstechnik Mbh Apparatus for mounting and cooling a flat screen
US20040196628A1 (en) * 2003-01-31 2004-10-07 Kabushiki Kaisha Toshiba Electronic apparatus having heat-generating components to be cooled with liquid coolant
KR20070054001A (ko) * 2005-11-22 2007-05-28 주식회사 대우일렉트로닉스 냉각수를 이용한 디스플레이 장치의 냉각 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5502582A (en) * 1994-09-02 1996-03-26 Aavid Laboratories, Inc. Light source cooler for LCD monitor
US20020109969A1 (en) * 2001-02-12 2002-08-15 Innowert Service-Center In Gesellschaft Fur Innovation Und Kommunikationstechnik Mbh Apparatus for mounting and cooling a flat screen
US20040196628A1 (en) * 2003-01-31 2004-10-07 Kabushiki Kaisha Toshiba Electronic apparatus having heat-generating components to be cooled with liquid coolant
KR20070054001A (ko) * 2005-11-22 2007-05-28 주식회사 대우일렉트로닉스 냉각수를 이용한 디스플레이 장치의 냉각 장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10174260B2 (en) 2011-06-10 2019-01-08 Steeper Energy Aps Process and apparatus for producing liquid hydrocarbon
GB2498787A (en) * 2012-01-29 2013-07-31 Guy Hutchins Cooling device for computer displays

Also Published As

Publication number Publication date
TW201009550A (en) 2010-03-01

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