WO2006114754A1 - Computer, particularly laptop computer, and cooling of the same - Google Patents

Computer, particularly laptop computer, and cooling of the same Download PDF

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Publication number
WO2006114754A1
WO2006114754A1 PCT/IB2006/051263 IB2006051263W WO2006114754A1 WO 2006114754 A1 WO2006114754 A1 WO 2006114754A1 IB 2006051263 W IB2006051263 W IB 2006051263W WO 2006114754 A1 WO2006114754 A1 WO 2006114754A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
screen
motherboard
computer
housing
Prior art date
Application number
PCT/IB2006/051263
Other languages
French (fr)
Inventor
Mark N. O. De Clercq
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2006114754A1 publication Critical patent/WO2006114754A1/en

Links

Classifications

    • 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
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • 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
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • 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
    • G06F1/203—Cooling means for portable computers, e.g. for laptops

Definitions

  • the invention relates to a computer, particularly a transportable, notebook or laptop computer, comprising a motherboard, a keyboard housing and a screen housing containing a screen, the motherboard comprising at least one heat generating component and the screen housing being connected or connectable to the keyboard housing, wherein the motherboard is included in the screen housing.
  • the invention also relates to a screen housing containing a screen, the screen housing being at least connectable to a keyboard housing for forming a computer, wherein a motherboard is included in the screen housing.
  • a laptop computer and screen housing therefore are known from American patent US 5 319 582.
  • American patent US 5 319 582 discloses an upper unit having a liquid crystal display and a bottom unit having a keyboard. The upper unit and the bottom unit can be connected to form a notebook computer.
  • the upper unit is a flat, hollow, enclosed body having a liquid crystal display on the face thereof.
  • a motherboard is fastened inside the upper unit beneath the LCD display.
  • a disadvantage of the known computer is that the presence of the motherboard in the screen housing of the computer causes an unwanted amount of interference on the screen reducing picture quality of the screen, especially when the screen part is of a thin design.
  • a screen housing of the computer according to the invention is characterized in that the screen housing comprises at least one heat transferor which is configured to transfer heat form the motherboard to an environment of the laptop.
  • the invention is based on the insight that the interference is caused by heat emanating from the motherboard.
  • the heat transferor of the screen part can diminish the heat transfer from the motherboard to the screen part to such an extent, simply by transferring heat to the laptop environment, that no significant amount of interference on the screen will be caused by the presence of the motherboard in vicinity of the screen.
  • the computer according to the invention may be a notebook or laptop computer.
  • the laptop comprises a thermally isolating element between the screen and the motherboard.
  • Such an element can, for instance, be formed as a sheet.
  • the amount of heat transferred to the screen can be significantly reduced, without any associated energy dissipation.
  • An energy efficient embodiment of the computer according to the invention is characterized in that the heat transferor comprises at a least one heat outlet, for instance a number of holes or slits.
  • the at least one outlet can be located near a top of the screen housing.
  • the heat transferor can also comprise at least one blower for blowing air to and/or from the motherboard.
  • the amount of heat reduction can be adjusted, for instance, to a predetermined amount of heat reduction.
  • the heat transferor comprises a heat exchanger for instance having a thermally conductive element located behind the motherboard.
  • the heat transferor comprises at least one heat transfer circuit comprising a fluid, wherein the heat transfer circuit is arranged to transfer heat away from the motherboard.
  • heat can be distributed across the screen housing. It is possible to homogeneously distribute the heat across the screen housing, thereby reducing the temperature difference between the motherboard and the screen.
  • the heat transferor is at least partially included inside the heat generating component and wherein the heat transferor comprises at least one heat transfer circuit comprising a fluid, wherein the heat transfer circuit is arranged to transfer heat from the heat generating component to a side of the heat generating component pointing away from the screen.
  • the heat transfer circuit is strategically located on the motherboard allowing for efficient heat transfer.
  • the heat transfer circuit may comprise a plurality of capillary tubes.
  • the computer contains at least one temperature sensor, for example adjacent to the motherboard. From measurement values obtained from the temperature sensor an estimate can be made of the amount of heat that is to be lead away from the motherboard.
  • the invention also provides a computer, wherein the screen housing comprises at least one heat transfer reductor for reducing heat transfer between the screen and the motherboard.
  • Figure Ia is a perspective view of a first laptop embodiment of the computer according to the present invention.
  • Figure Ib is a perspective view of a screen housing of the laptop computer of figure Ia;
  • Figure Ic is a side view of an upper part of the screen housing shown in figure
  • Figure 2a is a perspective view of a second laptop embodiment of the computer according to the present invention.
  • Figure Id is a detailed view of a central processing unit shown in figure Ic illustrating a modification of the embodiment of the laptop computer shown in figure Ia;
  • Figure 2b is a detailed view of a modification of the laptop computer shown in figure 2a;
  • Figure 2c is a perspective view of another modification of the laptop computer shown in figure 2a; and Figure 3 is a perspective rear view of the third laptop embodiment of the computer according to the present invention.
  • FIGS la-c illustrate a laptop computer 1 according to the present invention.
  • the laptop computer 1 comprises a keyboard housing 2 and a screen housing 4 containing a display screen 6, wherein the keyboard housing 2 and the screen housing 4 are pivotally connected with each other by pivot joints 8, 10.
  • the keyboard housing 2 contains a keyboard 12 comprising a number of keys for typing.
  • the keyboard housing 2 is provided with a touchpad 14.
  • the keyboard housing 2 has further been provided with a connector 16 for connecting a power supply cable 18, a battery set 20, a CD-drive 22 and several USB connectors 24a-c for connecting peripheral devices (not shown in the figures) such as a mouse, external memory devices, an external keyboard, a printer device, a scanner device and the like.
  • a surface 26 of the keyboard housing 2 and a surface 28 of the screen housing 4 have approximately the same size, so that, after use, the screen housing 4 can be pivoted in such a way as to cover the keyboard 12, forming a closed state, in which both the keyboard 12 and the screen 6 are turned away from the outside.
  • the closed state the keyboard 12 and the screen 6 are well-protected against damage possibly inflicted by other objects (not shown in the figures) when the laptop computer 1 is packed with these other objects.
  • the laptop computer 1 further comprises a motherboard 30 (see figure Ib) containing at least one heat generating component of which one is a central processing unit 32 (CPU) and several memory units 34.
  • the motherboard 30 can also be provided with further heat generating components, for instance a graphics processor(not shown in the figures).
  • the motherboard 30 is included in the screen housing 4.
  • the screen housing 4 comprises a heat transfer reductor 36 for reducing heat transfer between the screen 6 and the motherboard 30.
  • the heat transfer reductor 36 comprises a thermally isolating element 38, formed as a sheet.
  • the thermally isolating element 38 is located between the screen 6 and the motherboard 30.
  • FIG. Id a modification of the first embodiment of the laptop computer is illustrated.
  • a heat transferor is provided partially included inside the central processing unit and comprising a heat transfer circuit 39 which is partially shown in figure Id.
  • the heat transfer circuit comprises a fluid, which is pumped through the circuit by means of a pump (not shown in the figures).
  • a pump not shown in the figures.
  • FIGs 2a-c show another laptop computer 1 according to the present invention.
  • the screen housing 2 is provided with the two pivot joints 8, 10 and the keyboard housing 4 is provided with two connectors 40, 42.
  • the two pivot joints 8, 10 are connectable with the respective connectors 40, 42.
  • the keyboard housing 2 and the screen housing are shown in a disconnected state.
  • a heat transferor 32 is formed by a number of heat outlets 44, which are located near a top 46 of the screen housing 4.
  • the heat outlets 44 are formed by openings 47.
  • the motherboard 30 is positioned underneath the openings 47. A bottom of the screen can also be provided with such openings.
  • the heat outlets are formed by slits 48 (see figure 2b).
  • the heat transferor 32 can be provided with blowers 49 arranged beneath the central processing unit 32 (see figure 2c). As shown, the blowers 49 can be arranged to increase the flow of air passing through the heat outlets 44.
  • a thermometer 50 is provided near the motherboard 30 for measuring a temperature of the motherboard 30. The temperature measured by the thermometer 50 can be used to determine suitable settings of the blowers 49 thereby forming part of a feed-back system (not shown in the figures).
  • FIG. 3 shows a further laptop computer 1 according to the present invention.
  • the screen housing 4 is provided with a heat transferor 32 comprising a heat exchanger 52 having a thermally conductive element and a heat transfer circuit 54 provided with a number of capillary tubes 56 which are in thermal contact with the heat exchanger 52.
  • Both the heat exchanger 52 and the heat transfer circuit 54 are located inside the screen housing 4.
  • the heat transfer circuit 54 is provided with a fluid, for instance cooling water.
  • the heat exchanger 52 is arranged to transfer heat from the central processing unit 32 located beneath the heat exchanger to the heat transfer circuit 54. Heat emanating from the central processing unit 32 will reach the fluid in the heat transfer circuit through the heat exchanger 52 and the capillary tubes 56.
  • the fluid is pumped around in the heat transfer circuit 54, thereby homogeneously distributing the heat across the screen housing 4. A temperature difference and therefore also the heat transfer between the motherboard 16 and the screen 6 will be reduced.
  • a laptop or notebook computer or similar computer according to the invention is possible having a heat transfer reductor and a heat transferor, for example a laptop provided with both an isolating element and a heat transfer circuit.
  • the present invention can also be applied for improving heat transfer from other components located on the motherboard or other laptop components, for instance a graphics processor, or to improve heat transfer from the motherboard as a whole, such that unwanted interference on the screen can be prevented.

Abstract

Laptop computer (1) comprising a motherboard, a keyboard housing (2) and a screen housing (4) containing a screen (6), the screen housing being connected or connectable to the keyboard housing, wherein the motherboard is included in the screen housing, the screen housing comprising at least one heat transferor.

Description

COMPUTER, PARTICULARLY LAPTOP COMPUTER, AND COOLING OF THE SAME
The invention relates to a computer, particularly a transportable, notebook or laptop computer, comprising a motherboard, a keyboard housing and a screen housing containing a screen, the motherboard comprising at least one heat generating component and the screen housing being connected or connectable to the keyboard housing, wherein the motherboard is included in the screen housing.
The invention also relates to a screen housing containing a screen, the screen housing being at least connectable to a keyboard housing for forming a computer, wherein a motherboard is included in the screen housing.
A laptop computer and screen housing therefore are known from American patent US 5 319 582. American patent US 5 319 582 discloses an upper unit having a liquid crystal display and a bottom unit having a keyboard. The upper unit and the bottom unit can be connected to form a notebook computer. The upper unit is a flat, hollow, enclosed body having a liquid crystal display on the face thereof. A motherboard is fastened inside the upper unit beneath the LCD display. A disadvantage of the known computer is that the presence of the motherboard in the screen housing of the computer causes an unwanted amount of interference on the screen reducing picture quality of the screen, especially when the screen part is of a thin design.
This invention aims to obviate the above disadvantage. To this end, a screen housing of the computer according to the invention is characterized in that the screen housing comprises at least one heat transferor which is configured to transfer heat form the motherboard to an environment of the laptop.
The invention is based on the insight that the interference is caused by heat emanating from the motherboard. The heat transferor of the screen part can diminish the heat transfer from the motherboard to the screen part to such an extent, simply by transferring heat to the laptop environment, that no significant amount of interference on the screen will be caused by the presence of the motherboard in vicinity of the screen. The computer according to the invention may be a notebook or laptop computer. In an embodiment of the computer according to the invention, the laptop comprises a thermally isolating element between the screen and the motherboard. Such an element can, for instance, be formed as a sheet. Hereby, the amount of heat transferred to the screen can be significantly reduced, without any associated energy dissipation. An energy efficient embodiment of the computer according to the invention is characterized in that the heat transferor comprises at a least one heat outlet, for instance a number of holes or slits. The at least one outlet can be located near a top of the screen housing. Such a design advantageously takes into account the physical principle that hot air rises relative to cold air. Heat is led away from the motherboard as well as the screen, thereby reducing heat transfer to the screen.
The heat transferor can also comprise at least one blower for blowing air to and/or from the motherboard. Hereby the amount of heat reduction can be adjusted, for instance, to a predetermined amount of heat reduction.
It has been considered that the heat transferor comprises a heat exchanger for instance having a thermally conductive element located behind the motherboard. By increasing heat conductivity in a direction leading away from the screen, heat is led away from the motherboard and from the screen, thereby reducing heat transfer to the screen.
Yet another embodiment of the computer according to the invention is characterized in that the heat transferor comprises at least one heat transfer circuit comprising a fluid, wherein the heat transfer circuit is arranged to transfer heat away from the motherboard. In such an embodiment, heat can be distributed across the screen housing. It is possible to homogeneously distribute the heat across the screen housing, thereby reducing the temperature difference between the motherboard and the screen.
Also an embodiment of the computer according to the invention in conceivable wherein the heat transferor is at least partially included inside the heat generating component and wherein the heat transferor comprises at least one heat transfer circuit comprising a fluid, wherein the heat transfer circuit is arranged to transfer heat from the heat generating component to a side of the heat generating component pointing away from the screen. Hereby, the heat transfer circuit is strategically located on the motherboard allowing for efficient heat transfer. The heat transfer circuit may comprise a plurality of capillary tubes.
In an advanced embodiment of the invention the computer contains at least one temperature sensor, for example adjacent to the motherboard. From measurement values obtained from the temperature sensor an estimate can be made of the amount of heat that is to be lead away from the motherboard.
The invention also provides a computer, wherein the screen housing comprises at least one heat transfer reductor for reducing heat transfer between the screen and the motherboard.
Possible embodiments of the computer according to the present invention will be illustrated by means of the following drawing, in which corresponding reference signs refer to corresponding parts, wherein:
Figure Ia is a perspective view of a first laptop embodiment of the computer according to the present invention;
Figure Ib is a perspective view of a screen housing of the laptop computer of figure Ia; Figure Ic is a side view of an upper part of the screen housing shown in figure
Ib along the dashed line PF;
Figure 2a is a perspective view of a second laptop embodiment of the computer according to the present invention;
Figure Id is a detailed view of a central processing unit shown in figure Ic illustrating a modification of the embodiment of the laptop computer shown in figure Ia;
Figure 2b is a detailed view of a modification of the laptop computer shown in figure 2a;
Figure 2c is a perspective view of another modification of the laptop computer shown in figure 2a; and Figure 3 is a perspective rear view of the third laptop embodiment of the computer according to the present invention.
Figures la-c illustrate a laptop computer 1 according to the present invention. The laptop computer 1 comprises a keyboard housing 2 and a screen housing 4 containing a display screen 6, wherein the keyboard housing 2 and the screen housing 4 are pivotally connected with each other by pivot joints 8, 10. The keyboard housing 2 contains a keyboard 12 comprising a number of keys for typing. Furthermore, in this embodiment of the laptop computer 1 according to the invention, the keyboard housing 2 is provided with a touchpad 14. The keyboard housing 2 has further been provided with a connector 16 for connecting a power supply cable 18, a battery set 20, a CD-drive 22 and several USB connectors 24a-c for connecting peripheral devices (not shown in the figures) such as a mouse, external memory devices, an external keyboard, a printer device, a scanner device and the like. In this embodiment, a surface 26 of the keyboard housing 2 and a surface 28 of the screen housing 4 have approximately the same size, so that, after use, the screen housing 4 can be pivoted in such a way as to cover the keyboard 12, forming a closed state, in which both the keyboard 12 and the screen 6 are turned away from the outside. In the closed state the keyboard 12 and the screen 6 are well-protected against damage possibly inflicted by other objects (not shown in the figures) when the laptop computer 1 is packed with these other objects.
The laptop computer 1 further comprises a motherboard 30 (see figure Ib) containing at least one heat generating component of which one is a central processing unit 32 (CPU) and several memory units 34. The motherboard 30 can also be provided with further heat generating components, for instance a graphics processor(not shown in the figures). According to the present invention the motherboard 30 is included in the screen housing 4. Turning to figure Ic, the screen housing 4 comprises a heat transfer reductor 36 for reducing heat transfer between the screen 6 and the motherboard 30. In the first embodiment, the heat transfer reductor 36 comprises a thermally isolating element 38, formed as a sheet. The thermally isolating element 38 is located between the screen 6 and the motherboard 30.
Most of the heat transferred from the central processing unit 32, the memory units 34 or any of the further components to the screen 6 will have to pass through the thermally isolating element 38. Having a low thermal conductivity coefficient, the thermally isolating element 38 will reduce heat transfer between the screen 6 and the motherboard 30. In figure Id, a modification of the first embodiment of the laptop computer is illustrated. In this modification a heat transferor is provided partially included inside the central processing unit and comprising a heat transfer circuit 39 which is partially shown in figure Id. The heat transfer circuit comprises a fluid, which is pumped through the circuit by means of a pump (not shown in the figures). Hereby, heat is transferred from the central processing unit 32 to a side of the central processing unit 32 pointing away from the screen 6.
Figures 2a-c show another laptop computer 1 according to the present invention. In this embodiment, the screen housing 2 is provided with the two pivot joints 8, 10 and the keyboard housing 4 is provided with two connectors 40, 42. The two pivot joints 8, 10 are connectable with the respective connectors 40, 42. In figure 2a, the keyboard housing 2 and the screen housing are shown in a disconnected state. When the respective pivot joints 8, 10 and connectors 40, 42 are connected, a usable laptop computer is formed.
In the second embodiment, a heat transferor 32 is formed by a number of heat outlets 44, which are located near a top 46 of the screen housing 4. In this embodiment, the heat outlets 44 are formed by openings 47. Furthermore, the motherboard 30 is positioned underneath the openings 47. A bottom of the screen can also be provided with such openings. In this embodiment, use is made of the general principal in physics, that hot air rises relative to cold air. Air heated by the motherboard 30 will rise and have easy access to ambient air via the heat outlets 44. Heat is transported away from the motherboard 30 through the heat outlets 44, so that the amount of heat that will reach the screen 6 is reduced. In a modification of the second embodiment according to the invention, the heat outlets are formed by slits 48 (see figure 2b).
In another modification of the second embodiment, the heat transferor 32 can be provided with blowers 49 arranged beneath the central processing unit 32 (see figure 2c). As shown, the blowers 49 can be arranged to increase the flow of air passing through the heat outlets 44. In addition, a thermometer 50 is provided near the motherboard 30 for measuring a temperature of the motherboard 30. The temperature measured by the thermometer 50 can be used to determine suitable settings of the blowers 49 thereby forming part of a feed-back system (not shown in the figures).
Figure 3 shows a further laptop computer 1 according to the present invention. In this embodiment of the laptop computer 1 according to the invention, the screen housing 4 is provided with a heat transferor 32 comprising a heat exchanger 52 having a thermally conductive element and a heat transfer circuit 54 provided with a number of capillary tubes 56 which are in thermal contact with the heat exchanger 52. Both the heat exchanger 52 and the heat transfer circuit 54 are located inside the screen housing 4. The heat transfer circuit 54 is provided with a fluid, for instance cooling water. The heat exchanger 52 is arranged to transfer heat from the central processing unit 32 located beneath the heat exchanger to the heat transfer circuit 54. Heat emanating from the central processing unit 32 will reach the fluid in the heat transfer circuit through the heat exchanger 52 and the capillary tubes 56. Using a pump 58 the fluid is pumped around in the heat transfer circuit 54, thereby homogeneously distributing the heat across the screen housing 4. A temperature difference and therefore also the heat transfer between the motherboard 16 and the screen 6 will be reduced. It is noted that the invention is not limited to the embodiments described above. For instance, a laptop or notebook computer or similar computer according to the invention is possible having a heat transfer reductor and a heat transferor, for example a laptop provided with both an isolating element and a heat transfer circuit. It will be clear to a person skilled in the art that the present invention can also be applied for improving heat transfer from other components located on the motherboard or other laptop components, for instance a graphics processor, or to improve heat transfer from the motherboard as a whole, such that unwanted interference on the screen can be prevented.
It is possible, for instance, to arrange the blower underneath the motherboard to blow away heated air from the entire motherboard. Such embodiments are all understood to lie within the scope of the present invention.

Claims

CLAIMS:
1. A computer, particular a laptop computer, comprising a motherboard, a keyboard housing and a screen housing containing a screen, the motherboard comprising at least one heat generating component and the screen housing being connected or connectable to the keyboard housing, wherein the motherboard is included in the screen housing and the screen housing comprises at least one heat transferor which is configured to transfer heat from the motherboard to an environment of the computer.
2. A computer according to claim 1, comprising a thermally isolating element between the screen and the motherboard.
3. A computer according to claim 1 or 2, characterized in that the heat transferor comprises at a least one heat outlet, for instance a number of holes and/or slits extending in at least one outer surface of the screen housing.
4. A computer according to claim 3, characterized in that the at least one heat outlet is located near a top of the screen housing.
5. A computer according to any one of the preceding claims, characterized in that the heat transferor comprises at a least one blower for blowing air to and/or from the motherboard.
6. A computer according to any one of the preceding claims, characterized in that the heat transferor comprises a heat exchanger.
7. A computer according to claim 6, characterized in that the heat exchanger comprises a thermally conductive element located near the motherboard, and/or coupled to the motherboard.
8. A computer according to any one of the preceding claims, characterized in that the heat transferor comprises at least one heat transfer circuit comprising a fluid, wherein the heat transfer circuit is arranged to transfer heat from the motherboard, for example to said environment.
9. A computer according to any one of the preceding claims, characterized in that the heat transferor is at least partially included inside the heat generating component and wherein the heat transferor comprises at least one heat transfer circuit comprising a fluid, wherein the heat transfer circuit is arranged to transfer heat from the heat generator component to a side of the heat generating component pointing away from the screen.
10. A computer according to claim 8 or 9, characterized in that the heat transfer circuit comprises a plurality of capillary tubes.
11. A computer according to any one of the preceding claims, characterized in that the screen housing contains at least one temperature sensor.
12. A computer, for example the computer according to any one of the preceding claims, the computer comprising a motherboard, a keyboard housing and a screen housing containing a screen, the screen housing being connected or connectable to the keyboard housing, wherein the motherboard is included in the screen housing containing a screen, characterized in that the screen housing comprises at least one heat transfer reductor for reducing heat transfer between the screen and the motherboard.
13. A screen housing containing a screen, for example a screen housing of a computer according to any one of the preceding claims, the screen housing being at least connectable to a keyboard housing for forming the computer, wherein a motherboard is included in the screen housing containing a screen, characterized in that the screen housing comprises at least one heat transferor which is configured to transfer heat from the motherboard to an environment of the computer.
PCT/IB2006/051263 2005-04-28 2006-04-24 Computer, particularly laptop computer, and cooling of the same WO2006114754A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05103481 2005-04-28
EP05103481.7 2005-04-28

Publications (1)

Publication Number Publication Date
WO2006114754A1 true WO2006114754A1 (en) 2006-11-02

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ID=36607260

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PCT/IB2006/051263 WO2006114754A1 (en) 2005-04-28 2006-04-24 Computer, particularly laptop computer, and cooling of the same

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0767415A2 (en) * 1995-10-02 1997-04-09 NCR International, Inc. A heat transfer unit
US5872699A (en) * 1995-07-25 1999-02-16 Fujitsu Limited Electronic apparatus, housing for electronic apparatus and housing manufacturing method
WO2000046656A1 (en) * 1999-02-04 2000-08-10 Intel Corporation A cooling system for integrated circuit chips in portable computers
US6256192B1 (en) * 1999-08-09 2001-07-03 Packard Bell Nec, Inc. Accordion-fold laptop computer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5872699A (en) * 1995-07-25 1999-02-16 Fujitsu Limited Electronic apparatus, housing for electronic apparatus and housing manufacturing method
EP0767415A2 (en) * 1995-10-02 1997-04-09 NCR International, Inc. A heat transfer unit
WO2000046656A1 (en) * 1999-02-04 2000-08-10 Intel Corporation A cooling system for integrated circuit chips in portable computers
US6256192B1 (en) * 1999-08-09 2001-07-03 Packard Bell Nec, Inc. Accordion-fold laptop computer

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