WO2007026833A1 - ヒートパイプ及びその製造方法 - Google Patents
ヒートパイプ及びその製造方法 Download PDFInfo
- Publication number
- WO2007026833A1 WO2007026833A1 PCT/JP2006/317249 JP2006317249W WO2007026833A1 WO 2007026833 A1 WO2007026833 A1 WO 2007026833A1 JP 2006317249 W JP2006317249 W JP 2006317249W WO 2007026833 A1 WO2007026833 A1 WO 2007026833A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat pipe
- intermediate plate
- lower member
- upper member
- refrigerant
- Prior art date
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Classifications
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- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- 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
- F28D15/04—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 tubes having a capillary structure
- F28D15/046—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 tubes having a capillary structure characterised by the material or the construction of the capillary structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/09—Heat pipes
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49353—Heat pipe device making
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49366—Sheet joined to sheet
Definitions
- the present invention relates to a heat pipe and a method for producing the same, and is particularly suitable for application to a heat pipe that is thin and flat.
- the formation of the container has been performed by joining and forming the members constituting the container at the periphery of the container.
- the refrigerant is sealed in the container space.
- a hole is provided in the side surface, upper surface, or lower surface of the heat pipe, and the refrigerant is injected into the inside through the hole, and then the hole is closed by caulking or the like. Then, it is done in the way.
- Patent Document 1 Japanese Unexamined Patent Application Publication No. 2002-039693
- Patent Document 2 Japanese Unexamined Patent Application Publication No. 2004-077120
- the present invention has been made in consideration of the above points, and an object of the present invention is to provide a small and thin heat pipe that can further improve the heat conductivity by improving the liquid feedback characteristics. Let's say.
- Another object of the present invention is to provide a small and thin heat pipe that can further improve heat conductivity by improving the heat dissipation effect.
- the heat pipe can be made more inexpensive by increasing the productivity of the heat pipe, and heat that can prevent wrinkles that impair the flatness of the outer surface of the heat pipe by the sealing member.
- the purpose is to provide a pipe.
- the heat pipe of the present invention communicates with the concave portions of the upper member and the lower member between a flat plate-shaped upper member having a concave portion on the lower surface and a flat plate-shaped lower member having a concave portion on the upper surface.
- the vapor diffusion channel and the recess are provided in a sealed space between the upper member and the lower member with one or more flat intermediate plates forming a plurality of planar vapor diffusion channels interposed therebetween.
- a heat pipe in which a refrigerant is sealed in the sealed space, wherein the intermediate plate communicates with the recesses of the upper member and the lower member in a portion other than the portion where the vapor diffusion flow path is formed.
- Capillary channels in the vertical direction or both vertical and planar directions are formed.
- a plurality of protrusions to which the apparatus to be cooled is attached are integrally formed on at least one outer surface of the upper member and the lower member.
- the planar shape of the upper member and the lower member is a rectangular shape
- the central portion is a device to be cooled
- planar shape of the upper member and the lower member is a rectangular shape
- the central portion is a device to be cooled
- each of the vapor diffusion flow paths is a device to be cooled in the central portion. It is preferred that it is formed radially from the arrangement part.
- bonding protrusions are formed on the lower member, the intermediate plate, the peripheral portion of the upper member, and the peripheral portion of the cooled device arrangement portion or in the vicinity thereof, and the lower member, the intermediate plate, and the It is preferable that the upper member is directly bonded through the bonding protrusion by heat press.
- a heat pipe manufacturing method is provided between a flat plate-shaped lower member having a recess on an upper surface, a flat plate-shaped upper member having a recess on a lower surface, and the upper member and the lower member.
- One or a plurality of flat plate-like intermediate plates that form a plurality of planar vapor diffusion channels communicating with the recesses of the upper member and the lower member are stacked, and the lower member, the intermediate plate, and the upper member are mutually connected.
- the lower member is heat-pressed to a peripheral portion to be directly bonded, or a bonding protrusion formed in or near the peripheral portion and the peripheral portion of the cooled device arrangement portion, and at the position where the bonding protrusion is formed.
- the intermediate plate and the upper member are integrated by directly joining.
- a plurality of vapor expansions communicating with the concave portions of the upper member and the lower member are provided between a flat upper member having a concave portion on the lower surface and a flat lower member having a concave portion on the upper surface.
- One or a plurality of flat intermediate plates that form a diffusion channel are interposed, and the vapor diffusion channel and the recess are stacked in the sealing space of the upper member and the lower member,
- One or a plurality of the sealing space and the outside communicate with one of the upper member and the lower member
- the refrigerant injection hole is formed, the refrigerant is sealed in the sealing space, and the refrigerant injection hole is closed with a sealing plug made of a plastic metal.
- each of the refrigerant injection holes the state in which the outside and the internal space are communicated is maintained until the refrigerant injection holes are completely closed by the sealing plugs. It is preferable to form one or a plurality of gas venting grooves which are closed by the sealing plug when it is completely closed.
- each of the refrigerant injection holes has a larger diameter at the upper part than the lower part, and the surface of the sealing plug that closes each of the refrigerant injection holes has an external force of the member in which the refrigerant injection hole is formed. It ’s better not to stick out!
- the inside of the sealed space is preferably under reduced pressure.
- the heat pipe manufacturing method includes a flat plate-shaped lower member having a concave portion on the upper surface, a flat plate-shaped upper member having a concave portion on the lower surface, and a planar direction communicating with the concave portions of the upper member and the lower member.
- One or a plurality of flat plate-like intermediate plates that form a plurality of vapor diffusion flow paths are laminated, and the lower member, the intermediate plate, and the upper member are to be directly joined to each other, or the peripheral portion and the object to be cooled
- the lower member, the intermediate plate and the upper member are directly bonded at the position where the bonding protrusion is formed.
- Process and injection of the refrigerant A step of disposing a plastic metal body serving as a sealing plug on each of the holes, and press-contacting the plastic metal body by pressurization to close each of the refrigerant injection holes.
- the one or a plurality of intermediate plates form a planar vapor diffusion flow path communicating with the concave portions of the upper member and the lower member, and the concave portions of the upper member and the lower member.
- Capillary flow paths in the vertical direction or both vertical and planar directions that are in communication with the flow path are formed, making it easier for the refrigerant to circulate due to vapor diffusion through the vapor diffusion flow path and refrigerant return through the capillary flow path, improving liquid circulation characteristics
- the thermal conductivity can be improved further than before.
- a small and thin heat pipe can be provided.
- the cross-sectional area of each capillary channel in the planar direction is determined by passing through the intermediate plates.
- the cross-sectional area in the plane direction of the through hole can be made narrower, and the liquid circulation action by the vapor diffusion action and the capillary phenomenon can be balanced, so that the heat conduction effect can be maximized.
- a plurality of protrusions for mounting the apparatus to be cooled are integrally formed on the outer surface of at least one of the upper member and the lower member, and the object to be cooled is brought into direct contact with the protrusions, thereby
- the cooling effect of the cooling device can be further increased. Therefore, by taking heat from the apparatus to be cooled directly into the heat pipe, it is possible to provide a small and thin heat pipe that can further improve the thermal conductivity as compared with the prior art. Therefore, it is possible to provide an optimum heat pipe with a high heat dissipation effect that can be reliably cooled, for example, even with a high-speed CPU (Central Processing Unit) of 5 GHz level that generates a large amount of heat.
- CPU Central Processing Unit
- a plurality of fine protrusions are provided in a portion where the apparatus to be cooled is to be disposed, and the apparatus to be cooled is provided via an adhesive provided in a gap between the plurality of protrusions.
- the upper member and the lower member have a rectangular planar shape, a cooling device is provided at the center, and each vapor diffusion channel is formed in an oblique direction with respect to the side, or the center Part If each vapor diffusion channel is formed radially, it is possible to effectively release heat from the central portion to the corner portion, and the entire area including the corner portion of the heat pipe can contribute to heat dissipation. And the heat conduction effect can be further enhanced.
- the peripheral portion of the lower member, the intermediate plate, and the upper member is provided.
- the lower member, the intermediate plate, and the upper member should be directly joined to each other, or in the vicinity of the peripheral portion and the peripheral portion of the cooled device arrangement portion. Since the formed projections are heat-pressed, heat and pressure are concentrated at the position where the bonding projections are formed, so that direct bonding can be performed at the positions where these projections are formed. Welding agents, adhesives, etc. This makes it possible to perform joints that are indispensable for the integration of heat pipes without the need for heat.
- a plastic metal is placed on the refrigerant injection hole of each heat pipe, and the plastic metal is simultaneously applied to the plurality of heat pipes.
- the plastic metal is simultaneously applied to the plurality of heat pipes.
- each of the refrigerant injection holes is made larger in diameter than the lower portion, the remaining portion of the plastic metal in which the lower portion of the small diameter is completely filled is accommodated in the upper portion of the large diameter, and the heat The outer surface force of the pipe can be prevented from protruding.
- the boiling point of the refrigerant is lowered, so that the refrigerant that removes heat from the apparatus to be cooled is at a temperature slightly higher than room temperature, and the vapor diffusion flow path.
- the refrigerant can be circulated by the vapor diffusion and the refrigerant return by the capillary channel, and by improving the heat dissipation effect, it is possible to provide a small and thin heat pipe that can further improve the heat conductivity compared to the conventional one.
- FIG. 1 is a perspective view showing an external configuration of an upper outer surface and a lower outer surface of a heat pipe according to a first embodiment.
- FIG. 2 is a perspective view showing an external configuration of an upper member, an upper intermediate plate, a lower intermediate plate, and a lower member in the section AA ′.
- FIG. 3 is a schematic diagram showing a partial front cross-sectional configuration and a BB ′ cross-sectional configuration when the upper member, the upper intermediate plate, the lower intermediate plate, and the lower member are in the AA ′ cross section. It is.
- FIG. 4 is a perspective view showing an external configuration of a lower outer surface of a lower member in a cross-section taken along the line “ ⁇ - ⁇ ”.
- [051 (A) is a schematic view showing the configuration of the lower inner surface of the upper member, the upper surface configuration of the upper intermediate plate and the lower intermediate plate, and the configuration of the upper inner surface of the lower member. It is the schematic which shows a mode when a side intermediate
- FIG. 6 is a schematic view showing the arrangement of the through holes in the upper intermediate plate and the through holes in the lower intermediate plate.
- FIG. 7 is a schematic view showing a detailed configuration when an upper intermediate plate, a lower intermediate plate and a lower member are laminated.
- An example of a heat pipe manufacturing method according to Example 1 is shown in the order of steps along (A) to (E).
- (A), (B), (D), and (E) are cross-sectional views.
- (C) shows the opening with a view of the upper force.
- FIG. 9 is a plan sectional view showing the configuration of the refrigerant injection hole and the air discharge hole in the upper member.
- FIG. 10 is a cross-sectional view simply showing the principle of refrigerant circulation in the sealed space of a heat pipe.
- FIG. 11 is a detailed cross-sectional side view showing the state of refrigerant circulation through the vapor diffusion channel and the capillary channel.
- FIG. 12 An external view showing a state of a vapor diffusion channel in the heat pipe according to Example 2.
- FIG. 13 is a schematic view showing a simulation result regarding heat diffusibility performed on a heat pipe and a simple copper plate.
- FIG. 15 is a cross-sectional view showing side cross-sectional configurations of an upper member, an upper intermediate plate, a lower intermediate plate, and a lower member of a heat pipe according to Example 3.
- FIG. 16 is a schematic diagram showing an external configuration of a lower intermediate plate, a side cross-sectional configuration, and an external configuration of an intermediate plate central protrusion formed in a capillary center formation region.
- FIG. 18 is a perspective view showing the external configuration of the upper and lower outer surfaces of the heat pipe according to Example 4.
- FIG. 19 shows an example (1) of a heat pipe manufacturing method according to Example 4, in which (A) to (C) are cross-sectional views showing the manufacturing method in the order of steps.
- FIG. 20 is a schematic view showing the overall configuration of the upper inner surface of the lower member.
- FIG. 21 is a schematic diagram showing the overall configuration of the lower inner surface of the upper member.
- FIG. 22 shows an example (2) of a heat pipe manufacturing method according to Example 4, in which (A) to (C) are cross-sectional views showing the manufacturing method in the order of steps.
- FIG. 23 shows a front configuration and a side sectional configuration of a refrigerant injection hole formed in the upper member.
- A) is a plan view
- (B) is a cross-sectional view.
- FIG. 24 shows a front configuration, a side cross-sectional configuration and a sealing state (1) of a refrigerant injection hole or an air discharge hole according to another embodiment, (A) is a plan view, (B) and (C) are sectional views.
- FIG. 25 shows a front configuration, a side cross-sectional configuration and a sealing state (2) of a refrigerant injection hole or an air discharge hole according to another embodiment, (A) is a plan view, (B) and (C) are sectional views.
- the heat pipe of the present invention is configured such that a vapor diffusion channel and a vertical (or both vertical and planar) capillary channel are formed between an upper member having a recess and a lower member having a recess.
- a vapor diffusion channel and a vertical (or both vertical and planar) capillary channel are formed between an upper member having a recess and a lower member having a recess.
- One or a plurality of intermediate plates are interposed, and copper having high thermal conductivity is optimal as the material of the upper member, the lower member, and the intermediate plate.
- Such a heat pipe to-be-cooled device for example, an IC (semiconductor integrated device), an LSI (large scale integrated circuit device), or a CPU or the like to be cooled has a misalignment between the upper member and the lower member. On the other hand, for example, it is provided in the center of the outer (lower) surface of the lower member.
- a protrusion is integrally arranged on the cooled device placement section. It is good to install.
- the protrusion is brought into direct contact with the apparatus to be cooled, so that the apparatus to be cooled is mounted and fixed at the desired position of the apparatus to be cooled. It is possible to quickly transfer the heat of the cooled device to the heat pipe without going through the adhesive.
- the direction of the vapor diffusion flow path may be parallel to the long side or the short side of the heat pipe. It is better to make it diagonal. The reason is that if the long side or the short side is parallel, the center force of the heat pipe cannot be effectively dissipated to the outside. This is because effective heat dissipation can be achieved.
- the heat pipe center force in which the device to be cooled is arranged also includes all four corners.
- heat can be efficiently dissipated uniformly. Therefore, the heat conduction effect can be increased and it can be said that it is optimal as a heat pipe.
- a flow path (hereinafter referred to as a vapor diffusion flow path) is formed.
- the vapor diffusion channel hole itself becomes the vapor diffusion channel.
- the shape of the vapor diffusion flow path may be a band shape, a trapezoidal shape, or a variety of other shapes, in which the width dimension gradually becomes wider or narrower toward the periphery of the central force. .
- the overlapped vapor diffusion channel holes may be completely overlapped, or the vapor diffusion channel holes may be shifted in the width direction.
- the intermediate plate is overlaid so that the vapor diffusion channel holes are not displaced in the width direction.
- the plurality of intermediate plates are overlapped to form overlapping through holes, communicate with the recesses of the upper member and the lower member, and the refrigerant flows in the vertical direction.
- a flow path (hereinafter referred to as a capillary flow path) that flows in both the vertical and plane directions is formed.
- the through holes of each intermediate plate may be formed in different patterns, and the through holes of each intermediate plate may be formed in the same pattern. When there is only one intermediate plate, the through hole itself becomes a capillary channel.
- each through hole of each intermediate plate are completely the same, and the corresponding ones of the through holes of each intermediate plate have the same position, the same shape, and the same capillary flow path.
- the intermediate plate is provided between the upper member and the lower member so as to be configured.
- the shape of the through hole and the capillary channel may be, for example, a rectangle (for example, a square or a rectangle), and corners R may be attached.
- a force that is basically rectangular may be such that the surface of some or all of the sides (inner peripheral surface of the capillary channel) has a large surface area such as a wave shape or a bowl shape. This is because the cooling effect increases if the surface area of the inner peripheral surface of the capillary channel is large.
- the shape of the capillary channel may be a hexagon, a circle, or an ellipse.
- the size, shape, and arrangement pitch of the through holes of the two intermediate plates are the same, and the arrangement position is the arrangement pitch. If the position is shifted in a predetermined direction (for example, the lateral direction (XI direction in FIG. 1 (A) described later)), the substantial cross-sectional area of the capillary channel is changed to the cross-sectional area of the through hole of each intermediate plate. It can be reduced to about one-half of.
- the typical cross-sectional area can be reduced to about one-fourth of the cross-sectional area of the through hole of each intermediate plate.
- a capillary channel is formed in which the refrigerant flows not only in the vertical direction but also in both the vertical and planar directions.
- the concave portions of the upper member and the lower member are partitioned by protruding columns and formed in a lattice shape in the following embodiments, but may be formed in other shape patterns such as a mesh.
- the protruding column is formed in the shape of a column with a square, circular, elliptical, polygonal, or star shape in cross section.
- the plate thickness of the upper member and the lower member is in the range of 500 to 2000 / ⁇ ⁇ , and the depth of the recess (that is, the height of the projection column) is in the range of 100 to 1000 / ⁇ ⁇ . Further, the thickness of the intermediate plate is in the range of 50 to 500 / ⁇ ⁇ .
- direct bonding means pressurization in a state where the first and second surface portions to be bonded are in close contact with each other.
- the atomic force is firmly bonded by the atomic force acting between the first and second surface portions, thereby allowing the first and second to be bonded without using an adhesive or the like.
- the surface portion can be integrated.
- the joining projection is formed in a frame shape around the upper member and the intermediate plate, for example.
- the pressing pressure is in the range of 40 ⁇ 150k gZcm 2
- the temperature is preferably in the range of 250 to 400 ° C.
- the coolant injection amount is preferably equivalent to the total volume of the through holes.
- bonding protrusions are formed in the periphery of the lower member, the intermediate plate, and the upper member, and in the periphery of the portion to be cooled or in the vicinity thereof, and the lower member, the intermediate plate, and the upper member are formed.
- the member is directly joined through a joining projection by heat press. As a result, it is directly joined at the peripheral part of the cooled device arrangement part or in the vicinity thereof, so that the heat pipe is prevented from being deformed and damaged by the thermal expansion of the refrigerant, and the heat pipe has heat resistance and reliability. Can be increased. In addition, since it is difficult to deform and break, the life of the heat pipe can be extended.
- the temperature of the refrigerant rises due to the heat generated from the device to be cooled, and a phenomenon in which the substantially central portion expands outward due to the thermal expansion of the refrigerant (hereinafter referred to as “pop”).
- the occurrence of the Pukone phenomenon) can be prevented.
- at least one or more bonding projections may be formed in the vicinity of the cooled device arrangement portion or in the vicinity thereof.
- the shape of the projections may be a rectangular column (including a square column or a rectangular column), a cylinder, and an elliptical column. But you can.
- the sealing can also be performed by the following mass-productive method.
- vacuum degassing for example, atmospheric pressure 0.5 KPa
- depressurization is performed, for example, for about 10 minutes through a vent groove at a low temperature (0 ° C to room temperature (for example, about 25 ° C)), and thereafter While still in the low temperature state, the sealing member is pressed (10-80 kgZcm 2 ) from above by pressing for several minutes and deformed under high pressure. In this way, the refrigerant injection hole is temporarily sealed by the low-temperature vacuum pressurization treatment. At this time, the coolant injection hole is closed with the plastic metal.
- the vacuum degree is set to 0.5 KPa, for example, at a high temperature (normal temperature (for example, about 25 ° C) to 180 ° C) for about 10 minutes, and the plastic metal is further pressed.
- the upper force of the plastic metal is also pressed (30 to 150 kgZcm 2 ).
- the plastic metal is plastically flowed and deformed at high temperature and pressure, and the refrigerant injection hole is more tightly closed with the plastic metal.
- the plastic metal is placed on the refrigerant injection hole of each heat pipe, and the plastic metal is pressurized and heated at once to the plurality of heat pipes.
- all the plastic metals can be plastically flowed and encapsulated in the refrigerant all at once.
- heat pipes can be sealed easily as much as possible on a flat surface. Can increase the sex. It is also possible to reduce the cost of heat pipes by increasing mass productivity.
- the refrigerant injection holes are arranged so that one (for example, the refrigerant injection hole) is at one corner of the rectangular heat pipe and the other (for example, the air discharge hole) is at the opposite corner. If it is positioned, it is easy to smoothly supply the refrigerant to the entire inside of the heat pipe.
- the sealed space after sealing can be reduced under a pressure lower than the atmospheric pressure, the boiling point of the refrigerant is lowered, so that the refrigerant that takes away the heat of the power to be cooled is vaporized at a temperature slightly higher than room temperature. Can be diffused into the vapor diffusion channel and heat uniformity can be achieved throughout the heat pipe.
- the pressure in the sealed space is preferably in the range of 0.3 to 0.8 KPa.
- the coolant injection hole may have a shape in which the upper part has a larger diameter than the lower part. Then, small diameter The remaining portion of the plastic metal in the state where the lower portion is completely filled can be accommodated in the upper portion of the large diameter, and the external force of the heat pipe can be prevented from protruding.
- the upper member, the intermediate plate and the lower member constituting the main body of the heat pipe are preferably made of copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy, stainless steel or the like having good thermal conductivity.
- the coolant is preferably water (pure water, distilled water, etc.), ethanol, methanol, acetone, etc.
- This heat pipe 1 includes an upper member 2 and a lower member 3 made of a high thermal conductivity material such as copper having a high thermal conductivity, and a device to be cooled is provided at the center of the lower outer surface 3a of the lower member 3.
- a device to be cooled is provided at the center of the lower outer surface 3a of the lower member 3.
- an IC semiconductor integrated device
- an LSI large scale integrated circuit device
- a cooled device 13 such as a CPU
- the upper member 2 and the lower member 3 are flat and have a flat surface with, for example, a rectangular shape (square shape), and the upper outer surface 2a has no unevenness, so that the degree of freedom of mounting in a portable device or a small device is increased. It is configured to improve. Further, the upper member 2 and the lower member 3 are respectively provided with positioning holes 5 at four corners, and based on these positioning holes 5, the upper member 2 and the lower member 3 are positioned. Overlapped and directly joined.
- FIG. 2 shows an external configuration of the upper member 2, the upper intermediate plate 7, the lower intermediate plate 8, and the lower member 3 of the AA ′ cross section of FIG.
- an upper intermediate plate 7 and a lower intermediate plate 8 are positioned based on the positioning holes 5 and sequentially stacked.
- Fig. 3 (A) shows a partial front cross-sectional configuration when the upper member, upper intermediate plate, lower intermediate plate and lower member are integrated
- Fig. 3 (B) shows Fig. 3 (A).
- FIG. 3 shows a B-B ′ cross section, and as shown in FIGS. 3A and 3B, the lower intermediate plate 8 and the upper intermediate plate 7 form a vapor diffusion channel 10 and a capillary channel 11. Has been.
- a coolant (not shown) made of water enters the sealed space 12 of the heat pipe 1 under reduced pressure. A fixed amount is enclosed, and this refrigerant can be circulated through the vapor diffusion channel 10 and the capillary channel 11 by the heat from the cooled device 13.
- the refrigerant is warmed and evaporated by the heat from the cooled device 13, and the plane direction parallel to the direction between the diagonal corners (the upper member 2 having a flat plate shape) And the vapor passes through a plurality of vapor diffusion channels 10 extending in the direction XI in FIG. 1 parallel to the plane portion of the lower member 3 and the direction Y1 parallel to the plane portion and perpendicular to the XI direction.
- the refrigerant that diffused and condensed in the peripheral side and radiated and condensed on the peripheral side is formed on the capillary channel 11 in the vertical direction (direction perpendicular to the XI direction and the Y1 direction) by the capillary phenomenon, and on the lower material 3
- the lattice-shaped recesses (hereinafter referred to as lower member-side lattice-shaped recesses) 17 having a predetermined depth formed on the inner surface 3b, the refrigerant returns to the central portion side again. It can be repeated continuously.
- the heat of the cooled device 13 is deprived by the latent heat when the refrigerant evaporates, and heat is dissipated by the entire upper member 2, the lower member 3 other than the cooled device placement portion 4, and the vapor diffusion flow path 10.
- the apparatus to be cooled 13 can be efficiently cooled.
- the cooled device arrangement portion 4 (Fig. 1 (B)) provided in the central portion of the lower outer surface 3a of the lower member 3 is adapted to the shape of the cooled device 13 (in this case, substantially square).
- FIG. 4 which shows the configuration of the lower member 3 in the AA ′ cross-section portion of FIG. 1 (B), a plurality of projections 14 having a small area are formed in accordance with the outer shape of the apparatus 13 to be cooled.
- the protrusions 14 are formed in a prismatic shape, and the tip surface of the quadrilateral has a 50 to 300 / zm square, and is equidistant (this If the pitch is 500-1000 ⁇ m, it is regularly arranged.
- an adhesive resin 14a such as an epoxy-based resin or a silicon-based adhesive resin is provided in the space, not the projection 14, and the adhesive resin 14a
- the cooled device 13 is adhered to the surface.
- the cooled device 13 can be provided in direct contact with the tip surfaces of the plurality of protrusions 14 without interposing an adhesive or the like.
- FIG. 5 (A) shows the top surface configuration of the upper member, the upper intermediate plate, the lower intermediate plate, and the lower member of the AA ′ cross-section portion of FIG. 1, and FIG. Intermediate plate, lower intermediate plate and lower member Some of them show the state when they are stacked.
- the lower member 3 has a lower member-side lattice-shaped recess 17 except for the periphery of the positioning holes 5 formed in the corners and the peripheral portion 16 serving as the outer shell.
- protruding pillars 18 each having a flat tip portion are provided.
- the thickness of the lower member 3 is about 800 m, for example, and the lower member-side lattice-shaped recess 17 has a depth of about 200 ⁇ m on the upper inner surface 3b of the lower member 3. Is formed.
- the upper member 2 has a lattice shape having a predetermined depth on the entire lower inner surface 2b except for the periphery of the positioning holes 5 formed in the corners and the peripheral portion 20 serving as the outer shell.
- (Hereinafter referred to as upper member side lattice-like recesses) 21 are formed, and in each region separated by the upper member side lattice-like recesses 21, projection pillars 22 having a flat tip portion are respectively provided. It is provided.
- the upper member 2 has the same shape and the same dimensions as the lower member 3, and the thickness is selected to be, for example, about 800 m.
- An upper member-side lattice-shaped recess 21 having a depth of, for example, about 200 m is formed on the lower surface, and a rectangular columnar protruding column 22 having a flat tip end is regularly formed on the lower inner surface 2b.
- the upper intermediate plate 7 and the lower intermediate plate 8 have a flat plate shape with a thickness of, for example, about 100 ⁇ m, and have a high heat conductive material force such as copper, and the outer shapes are the upper member 2 and the lower member 3.
- the peripheral portions 23 and 24 are configured to coincide with the peripheral portions 16 and 20 of the upper member 2 and the lower member 3.
- the upper intermediate plate 7 includes a first vapor diffusion channel hole 25a that forms a vapor diffusion channel 10 together with the lower intermediate plate 8, and a second vapor diffusion.
- the channel hole 25b and the third vapor diffusion channel hole 25c are formed so as to penetrate the thickness, and the first vapor diffusion channel hole 25a and the second vapor diffusion flow are formed.
- Capillary formation regions 26 are provided alternately with the passage holes 25b and the third vapor diffusion flow passage holes 25c, and form the capillary flow passage 11 together with the lower intermediate plate 8 as shown in FIG.
- a plurality of through holes 27 are formed in the capillary forming region 26 in a first pattern (described later).
- first vapor diffusion channel hole 25a, the second vapor diffusion channel hole 25b, and the third vapor diffusion channel hole 25c are formed in a band shape, and the first vapor Diffusion channel hole 25a is diagonal
- the second vapor diffusion channel hole 25b and the second vapor diffusion channel hole 25b are formed to extend between a pair of upper corners, spaced apart from each other on both sides of the first vapor diffusion channel hole 25a, and in parallel.
- a third vapor diffusion channel hole 25c is formed.
- the capillary tube forming region 26 has a grid-like partition wall 30, and each region partitioned by the partition wall 30 is a through hole 27.
- the through-holes 27 are formed in a quadrilateral shape, regularly arranged as a first pattern at a predetermined interval, and each of the four sides is parallel to the four sides of the peripheral portion of the upper intermediate plate 7.
- the width of the through hole 27 is selected to be about 280 m, for example, and the width of the cutting wall 30 is selected to be about 70 ⁇ m, for example.
- the lower intermediate plate 8 is formed in the same manner as the upper intermediate plate 7, but through holes 32 are formed in the capillary forming region 31 in a second pattern (described later)! Is different. That is, the lower intermediate plate 8 includes the first vapor diffusion channel hole 33a, the second vapor diffusion channel hole 33b, and the third vapor diffusion that form the vapor diffusion channel 10 together with the upper intermediate plate 7.
- the passage hole 33c is formed so as to penetrate the thickness, and the first vapor diffusion passage hole 33a, the second vapor diffusion passage hole 33b, and the third vapor diffusion passage hole.
- a plurality of through holes 32 that form the capillary channel 11 together with the upper intermediate plate 7 are drilled in a second pattern in each capillary forming region 31 that is alternately provided with 33c.
- the first vapor diffusion channel hole 33a, the second vapor diffusion channel hole 33b, and the third vapor diffusion channel hole 33c are shown in FIGS. 3 (A) and 3 (B).
- the first intermediate plate 7 is formed in the same shape and at the same position as the first vapor diffusion channel hole 25a, the second vapor diffusion channel hole 25b, and the third vapor diffusion channel hole 25c.
- the upper intermediate plate 7 overlaps the first vapor diffusion channel hole 25a, the second vapor diffusion channel hole 25b, and the third vapor diffusion channel hole 25c without deviation. .
- the first intermediate layer 7 has a first vapor diffusion channel hole 25a, a second vapor diffusion channel hole 25b, a third vapor diffusion channel hole 25c, and the lower intermediate plate 8.
- the upper member 2 upper member side lattice-shaped recess A vapor diffusion flow path 10 can be formed which is a wide area in which the portion 21 to the lower member-side lattice-like concave portion 17 of the lower member 3 communicates widely. As shown in FIG.
- these vapor diffusion channels 10 are composed of a first vapor diffusion channel hole 33a, a second vapor diffusion channel hole 33b, and a third vapor diffusion channel.
- the hole 33c has the same shape as the band, and can be arranged parallel to the direction between a pair of corners on a diagonal line.
- a lattice-shaped partition wall 35 is formed in the capillary tube forming region 31, and each region partitioned by the partition wall 35 is a through hole 32 (FIG. 5A).
- the through holes 32 are formed in a quadrilateral shape, and are regularly arranged at predetermined intervals as the second pattern in the same manner as the first pattern, and each of the four sides is a peripheral portion 24 that is an outline of the lower intermediate plate 8. Although arranged so as to be parallel to each of the four sides, they are arranged so as to be shifted from the through holes 27 of the upper intermediate plate 7 by a predetermined distance.
- FIG. 6 shows the arrangement of the through holes 27 in the upper intermediate plate 7 and the through holes 32 in the lower intermediate plate 8.
- the central portion 01 of the through hole 32 of the lower intermediate plate 8 is aligned with one side direction (X2 direction) of the through hole 27 in the upper intermediate plate 7.
- the upper intermediate plate 7 is arranged so that it is displaced by one half and is displaced by one half of the side in the other side direction (Y2 direction) perpendicular to the X2 direction of the through hole 27 in the upper intermediate plate 7.
- the intersecting portion 02 of the partition wall 35 corresponding to the central portion of the four through holes 32 adjacent to each other of the lower intermediate plate 8 is formed at the center of the through hole 27 of the upper intermediate plate 7.
- 03 so that the four through holes 32 of the lower intermediate plate 8 overlap each other in the region of one through hole 27 in the upper intermediate plate 7 to form four capillary channels 11. Has been made to get.
- FIG. 7 shows a detailed configuration when the upper intermediate plate 7, the lower intermediate plate 8, and the lower member 3 are laminated.
- each of the through holes 27 of the upper intermediate plate 7 is a capillary that is about one-fourth of the area of the through hole 27.
- the flow path 11 can be formed.
- the upper intermediate plate 7 and the lower intermediate plate 8 are much smaller and finer than the through holes 27 of the upper intermediate plate 7 and have a large surface area so that more capillary channels 11 can be formed. It is made and speaks.
- FIGS. 8A to 8C show an example of the manufacturing method of the heat pipe 1.
- the lower member 3 the lower intermediate plate 8, the upper intermediate plate 7, and After preparing the upper member 2, the layers are stacked in order from the bottom.
- FIG. 9 is a plan sectional view showing the configuration of the refrigerant injection hole 37 and the air discharge hole 38 in the upper member 2.
- the upper member 2 includes a lower inner surface 2b.
- a coolant injection hole 37 and an air discharge hole 38 are opened in a part of the peripheral portion 20 of the air.
- the upper member 2 has a frame-like joining projection 40a protruding from the lower inner surface 2b, except for the coolant injection hole 37 and the air discharge hole 38, in the peripheral portion 20. As a result, the upper member 2 can be directly joined to the upper intermediate plate 7 via the joining projections 40a.
- the upper intermediate plate 7 is formed with a frame-like joining projection 40b protruding from the lower surface along the peripheral portion 23, and the lower intermediate plate 8 can be joined directly via the joining projection 40b.
- the lower intermediate plate 8 is formed with a frame-like joining projection 40c protruding from the lower surface along the peripheral portion 24, and the lower member 3 can be joined directly via the joining projection 40c.
- the height of the joining protrusions 40a, 40b, 40c is selected to be about 35 ⁇ m, for example, and the width is selected to be about 50 m, for example.
- the lower member 3 is also provided with a coolant injection hole 37 and an air discharge hole 38.
- the lower member 3, the lower intermediate plate 8, the upper intermediate plate 7, and the upper member 2 are positioned based on the positioning holes 5, and thereby the outer peripheral parts 16, 20, 23, 24 are all matched. They can be stacked and stacked at various positions.
- the first vapor diffusion channel hole 25a, the second vapor diffusion channel hole 25b, and the third vapor diffusion channel of the upper intermediate plate 7 are provided between the upper member 2 and the lower member 3.
- the hole 25c for use with the first vapor diffusion channel hole 33a, the second vapor diffusion channel hole 33b and the third vapor diffusion channel hole 33c of the lower intermediate plate 8 A plurality of vapor diffusion channels 10 extending toward the peripheral portions 16 and 20 in parallel with the direction between the pair of corner portions can be formed (FIG. 3 (A)).
- a plurality of fine capillary channels 11 can be formed in a portion other than the above-described portion.
- the lower member 3, the lower intermediate plate 8, the upper intermediate plate 7, and the upper member 2 are overlapped and laminated at the optimum positions, and the lower member 3, the lower intermediate plate 8 are stacked.
- further pressurization that is, heat press (temperature is, for example, 300 ° C., pressure is, for example, lOOkgZcm 2 )
- heat press temperature is, for example, 300 ° C.
- pressure is, for example, lOOkgZcm 2
- the lower member 3, the lower intermediate plate 8, the upper intermediate plate 7, and the upper member 2 are connected to the peripheral portion 16, by the bonding protrusions 40a, 40b, and 40c, as shown in FIG. 8 (B).
- 20, 23, and 24 are directly joined together so that the internal space 45 of the heat pipe 1 communicates with the outside only through the coolant injection hole 37 and the air discharge hole 38.
- the mounting table is arranged so that the coolant injection hole 37 and the air discharge hole 38 are disposed above.
- a predetermined amount of liquid refrigerant is injected into the internal space 45 of the heat pipe 1 from the refrigerant injection hole 37 under atmospheric pressure. At this time, the air in the internal space 45 of the heat pipe 1 is exhausted from the air discharge hole 38.
- the amount of refrigerant enclosed is preferably equivalent to the total volume of the capillary channel in the case of water, for example.
- the sealing member 39 is pressurized (10-80 kgZcm 2 ) by pressing (not shown) for several minutes in a low temperature state, and deformed at low temperature by pressure. .
- the coolant injection hole 37 and the air discharge hole 38 are temporarily sealed by the low-temperature vacuum pressurization treatment.
- the coolant injection hole 37 and the air discharge hole 38 are closed by the sealing member 39.
- the coolant injection hole 37 and the air discharge hole 38 have a rectangular shape formed with a longitudinal direction of 600 m and a lateral direction of 400 m.
- a gap can be formed between the mounting portion 39a having a circular cross section of the sealing member 39 and the vicinity of the corner portion.
- the refrigerant injection hole 37 and the air discharge hole 38 can be degassed through the gap when being sealed by the sealing member 39.
- the degree of vacuum is set to, for example, 0.5 KPa at a high temperature (normal temperature (for example, 25 ° C) to 180 ° C) for about 10 minutes, and the sealing member 39 is further pressed. Is pressurized from above (30 to 150 kgZcm 2 ). This causes the sealing member 39 to plastically flow and pressurize at a high temperature. As shown in FIG. 8 (E), the sealing member 39 becomes a sealing plug and the refrigerant injection hole 37 and the air discharge hole 38 are more tightly closed. As a result, the internal space 45 becomes the sealed space 12, and the heat pipe 1 in which the refrigerant is sealed can be manufactured.
- FIG. 10 (A) shows a side cross-sectional configuration at the location of the vapor diffusion flow path 10 in the heat pipe 1, and is a schematic diagram showing the transfer of heat of 13 to-be-cooled devices.
- Fig. 10 (B) shows a side cross-sectional configuration at the location of the vapor diffusion channel 10 in the heat pipe 1 as in Fig. 10 (A), and is a schematic diagram showing how the vapor diffuses. It is.
- FIG. 10C shows a side cross-sectional configuration at the location of the capillary channel 11 in the heat pipe 1, and the refrigerant passes through the capillary channel 11 to form the lower member side lattice-shaped recess 17.
- FIG. 10 (D) shows a side sectional configuration at the location of the capillary channel 11 in the heat pipe 1 as in FIG. 10 (C).
- FIG. 5 is a schematic view showing a state in which the refrigerant is guided to the central portion through the lower member side lattice-shaped recess 17.
- the vapor diffusion flow path 10 extending in the peripheral portions 16 and 20 is provided in the sealed space 12 in parallel to the direction between the pair of corner portions on the diagonal line. Therefore, as shown in FIG. 10 (A), for example, when the refrigerant absorbs heat from the device to be cooled 13 mounted on the printed wiring board 42, and the refrigerant is warmed and evaporated, there is no resistance. As shown in FIG. 10 (B), the steam is diffused to the peripheral parts 16 and 20 through the vapor diffusion flow path 10 to the peripheral parts 16 and 20 of the heat pipe 1 as shown in FIG. At 20, the heat dissipates and condenses.
- the upper intermediate plate 7 and the lower intermediate plate 8 are simply drilled in the upper intermediate plate 7 simply by overlapping the peripheral portions of the upper intermediate plate 7 and the lower intermediate plate 8 so as to coincide with each other.
- the through-hole 27 was shifted from the through-hole 32 drilled in the lower intermediate plate 8 by a predetermined distance so that only a part overlapped.
- the through hole 27 of the upper intermediate plate 7 is divided into a plurality of parts by the cutting wall 35 of the lower intermediate plate 8, and penetrates into the upper intermediate plate 7 and the lower intermediate plate 8.
- As a processing technique for the holes 27 and 32 it is possible to easily form the capillary channel 11 that is finer than the limit of miniaturization.
- the capillary force due to the capillary phenomenon can be increased by the amount that the capillary channel 11 is made fine, so that the refrigerant can flow to the lower member side lattice-shaped recess 17 by the capillary force. It can be guided more reliably, and the circulation of refrigerant can be repeated continuously more reliably. Further, in the heat pipe 1, by forming the capillary channel 11 in which the through hole 27 of the upper intermediate plate 7 and the through hole 32 of the lower intermediate plate 8 are finely divided, the surface area of the capillary channel 11 can be increased. As a result, the amount of vapor adhering to the capillary channel 11 increases, and the vapor can be easily dissipated.
- FIG. 11 shows a detailed side sectional structure of the heat pipe 1 where the vapor diffusion channel 10 and the capillary channel 11 are sequentially formed.
- the through hole 27 of the upper intermediate plate 7 is located on the peripheral portions 16 and 20 side (that is, farther from the cooled device placement portion 4) than the through hole 32 of the lower intermediate plate 8.
- Capillary flow channel inclined to the peripheral parts 16, 20 side when moving from the upper member 2 to the lower material 3 only by the capillary flow channel 11 extending in the vertical direction. 11 can also be formed.
- each capillary is simply guided to the steam diffusion channel 10 (in the direction of the arrow al in the figure).
- the center side force rises diagonally upward toward the peripheral parts 16, 20 side, so that it spreads to the periphery in the process of rising the capillary flow path 11, and the peripheral parts 16, 20 side and above
- the heat diffusion to the member 2 and the capillary channel 11 can be further promoted, and heat can be efficiently dissipated by heat.
- the refrigerant which is condensed and liquefied by radiating and condensing in the peripheral portions 16, 20 and the upper member 2 and the capillary channel 11 passes through the capillary channel 11 by capillary force, and the lower member side lattice-shaped recess 17
- the refrigerant can be lowered in the vertical direction (in the direction of arrow a2 in the drawing) toward the center, and the refrigerant can be efficiently returned to the central portion side via the lower member side lattice-like concave portion 17.
- the refrigerant that is condensed and liquefied by the heat radiation in the peripheral portions 16, 20 and the upper member 2 and the capillary channel 11 is liquefied by the capillary force, and the peripheral portions 16, 20 side, the upper member 2, and the capillary flow.
- the channel 11 through the capillary channel 11 in the direction inclined obliquely toward the center (in the direction of arrow a3 in the figure) toward the lower member-side lattice-shaped recess 17 on the center side Yes this makes it possible to efficiently return the refrigerant to the center side.
- the refrigerant that has condensed and dissipated heat in the peripheral parts 16, 20, the upper member 2, and the capillary channel 11 is led mainly to the lower member side lattice-shaped recess 17 via the capillary channel 11.
- a part of the vapor diffusion channel 10 may be guided to the lower member side lattice-shaped recess 17 via the vapor diffusion channel 10.
- the refrigerant circulation phenomenon is continuously repeated, so that the heat to be cooled 13 can be radiated more effectively.
- the vapor diffusion channel 10 and the capillary channel 11 are not in direct communication, and the lower member side lattice-shaped recess 17 and the upper member side lattice-shaped recess 21 are provided.
- the capillary force in the capillary channel 11 does not impede the diffusion of the vapor in the vapor diffusion channel 10, and the vaporized refrigerant is reliably transferred to the peripheral parts 16, 20.
- the capillary force in the capillary channel 11 is not weakened by the diffusion of the vapor in the vapor diffusion channel 10, the liquid refrigerant can be reliably transferred to the lower member by the capillary channel 11. It can be led to the side lattice-shaped recess 17.
- the adhesive resin 14 a as an adhesive is interposed in the gap portion formed between the protrusions 14 of the cooled device disposition portion 4, while the protrusion is connected to the cooled device 13.
- the device to be cooled 13 is attached and fixed at a desired position of the device to be cooled 4, and the heat from the device to be cooled 13 is transferred via the projection 14 that does not pass through the adhesive resin 14 a. It is possible to promptly convey to the heat pipe side.
- the protrusion 14 has a tip surface of 50 to 300 m square, and is regularly arranged with a pitch of 500 to 1000 m in the 15000 ⁇ m square cooled device arrangement section 4.
- the cooled device 13 is in close contact with the lower member 3 over a wide area, and this makes it difficult to form an air layer having a very high thermal resistance between the in close contact surfaces.
- the heat of the cooling device 13 can continue to be transmitted to the lower member 3.
- the thermal conductivity of copper forming the protrusion 14 is 390 WZm'K, whereas the thermal conductivity of the adhesive resin 14a is 4 to 6 WZm'K, and the thermal conductivity of air. The rate is close to OWZm '.
- a plurality of vapor diffusion channels 10 are formed in parallel to the direction between a pair of corners on a diagonal line, and the vapor diffuses through these vapor diffusion channels 10. Therefore, the peripheral parts 16, 20 and the upper member 2, the capillary channel 11, and the vicinity of the pair of corners can contribute to heat dissipation evenly, and heat dissipation is performed efficiently and heat conduction. The effect can be increased.
- FIG. 12 shows the heat pipe 60 of Example 2 according to the present invention, and the above-described implementation is performed except that all the vapor diffusion channels 61 are formed radially from the center point of the cooled device disposition unit 4. It is not different from Example 1.
- the center of the copper plate 46 reached a high temperature of about 67 ° C.
- the temperature around the ring was about 52 ° C, and the temperature around the ring was about 47 to 27 ° C.
- the temperature at the outermost periphery was about 22 ° C.
- the temperature was about 47 to 27 ° C. over the entire region.
- the temperature distribution is substantially uniform, and there is no place where the temperature becomes as high as 67 ° C.
- the heat pipe 60 has a much better heat dissipation effect than the simple copper plate 46. Further, when compared with the surface temperature, the heat pipe 60 according to the present invention provides a heat dissipation effect that is approximately 20 times that of the simple copper plate 46.
- FIGS. 14 (a) and 14 (b) show a graph of the temperature distribution (temperature variation) of this experiment.
- FIG. 14 (a) shows Comparative Example 1
- FIG. 14 (b) shows a heat pipe 60 according to the present invention.
- FIGS. 14 (a) and 14 (b) are temperature distributions in the lateral direction of the sample shown in FIG. 13 (A) (the XI direction which is one of the planar directions).
- the horizontal axis of the graph shown in Figs. 14 (a) and 14 (b) indicates the position where the center of the cooled device 13 is provided at the center, and shows the length of the sample in the XI direction as a standard value of 1.
- the heat pipe 60 as shown in FIG. 14 (b), it was confirmed that the temperature difference was small between the central portion and the peripheral portion. That is, the heat pipe 60 of the present invention causes the entire region including the corners to contribute uniformly to heat dissipation by circulating the refrigerant inside, and the heat diffusion effect is extremely high compared to Comparative Example 1. I understand that.
- Fig. 15 showing the side cross-sectional configurations of the upper member, the upper intermediate plate, the lower intermediate plate, and the lower member, 70 indicates a heat pipe according to Example 3, and the lower member 71, the lower intermediate plate 72, the upper intermediate plate The plate 73 and the upper member 74 are laminated, and the peripheral parts 16, 20, 23, 24 are directly joined by heat press.
- the second embodiment is different from the second embodiment described above in that the region portion of the cooled device disposing portion 4 can be directly joined.
- the lower member 71 is formed with a receiving portion 75 at a position facing the vicinity of the corner of the cooled device disposing portion 4.
- the receiving portion 75 receives a joining projection (hereinafter referred to as an intermediate plate central projection) 76 that slightly protrudes from the lower surface of the lower intermediate plate 72, and the intermediate plate central projection 76 is directly joined by heat press. It is made to gain and speaks.
- the lower intermediate plate 72 is provided with a square capillary center forming region 77 in accordance with the region of the cooled device placement portion 4, and Fig. 16 (A ) In FIG. 16 (B) showing the cross-sectional configuration of the C—C ′ portion and FIG. 16 (C) which is a plan view of the main part of the lower intermediate plate 72.
- An intermediate plate center protrusion 76 is provided at the portion.
- the intermediate plate center protrusion 76 has a small prismatic force with a width W1 of about 50 m and a height HI of about 35 m. The direction is arranged toward the center.
- the lower intermediate plate 72 has eight vapor diffusion channel holes 78 drilled so as to extend radially from the capillary center forming region 77, and for these vapor diffusion channels. Between the holes 78, a through hole 79 has a capillary forming region 80 formed with a second pattern. A through hole 32 is also formed in the capillary center forming region 77 in the second pattern.
- the upper intermediate plate 73 integrally formed with the lower intermediate plate 72 is formed in the same manner as the lower intermediate plate 72, but the through hole 27 is formed in the capillary forming region 82 and the capillary central forming region 83. Is different in that it is formed by the first pattern.
- the upper intermediate plate 73 is provided with an intermediate plate central protrusion 85 that slightly protrudes from the lower surface at a position facing the receiving portion 75, and the lower side via the intermediate plate central protrusion 85 by heat press. Join directly to the intermediate plate 72. As a result, the upper intermediate plate 73 and the lower intermediate plate 72 can be integrated together.
- the upper member 74 is provided with a joining projection 86 (hereinafter referred to as an upper central projection) 86 at which the lower inner surface force slightly projects at a position facing the receiving portion 75 of the lower member 71. Then, it is directly joined to the upper intermediate plate 73 via the upper central projection 86 by a heat press.
- an upper central projection a joining projection 86 at which the lower inner surface force slightly projects at a position facing the receiving portion 75 of the lower member 71. Then, it is directly joined to the upper intermediate plate 73 via the upper central projection 86 by a heat press.
- the heat pipe 70 before the refrigerant filling can be manufactured, and in the same manner as in Example 2 described above.
- the refrigerant can be sealed in the internal space.
- the heat pipe 70 can obtain the same effects as those of the second embodiment described above, and the intermediate plate center protrusions 76 and 85 and the upper center protrusion at the position facing the device-to-be-cooled arrangement portion 4.
- a popcorn phenomenon can be prevented from occurring by providing a post structure in the central portion facing the cooled device arrangement portion 4 to improve the mechanical strength.
- the heat pipe 70 itself can be prevented from being destroyed by the popcorn phenomenon, so that the reliability of the heat pipe 70 can be improved and the life can be extended.
- the lower member 71, the lower intermediate plate 72, the upper intermediate plate 73, and the upper member 74 are not only cooled at the peripheral portions 16, 20, 23, 24 but also to be cooled.
- Intermediate plate center protrusions 76, 85 and upper center protrusion 86 are provided in the part corresponding to the peripheral part of device placement section 4, and the intermediate plate center protrusions 76, 85 and upper center protrusion 86 are directly formed by heat press. Since they are joined and integrated, expansion by the heat generated by the cooled device 13 can be prevented, and further, the heat pipe 70 itself can be prevented from being destroyed by the expansion, and the reliability of the heat pipe 70 can be prevented. It is possible to improve the performance and extend the life.
- the present invention is not limited to this, and as shown in FIG. 17 showing the external configuration of the intermediate plate 88 according to another embodiment, it is formed at the four corners of the capillary central formation region 77 corresponding to the periphery of the cooled device placement portion 4.
- the side protrusions 87 and 89 may be provided.
- intermediate plate 88 there are provided intermediate projections 89 near the center of the capillary center forming region 77 that connect only at the four corners of the capillary center forming region 77, and the radially extending capillary tubes It is also possible to provide an intermediate plate central projection 87 in the capillary formation region 80 arbitrarily selected from the formation regions 80. If the damage due to the popcorn phenomenon can be prevented, the peripheral portion of the device to be cooled 4 or the vicinity thereof An intermediate plate central protrusion may be provided at any location.
- reference numeral 90 denotes a heat pipe according to the present invention, and this heat pipe 90 is characterized by the method of enclosing the refrigerant.
- a coolant injection hole 92 and an air discharge hole 93 are formed in the upper outer surface 91a of the upper member 91, and the sealing member 94 as a sealing plug made of plastic metal force such as solder is plasticized. It has a configuration in which the coolant injection hole 92 and the air discharge hole 93 are sealed.
- the coolant injection hole 92 is provided in the vicinity of one corner portion of the pair of opposing corner portions, and the air discharge hole 93 is provided in the one corner portion. It is provided in the vicinity of the other corner opposite to the corner.
- the lower member is formed by the refrigerant sealed in the sealed space through the refrigerant injection hole 92.
- the cooling target device 13 provided on the lower outer surface 95a of the 95 can be efficiently cooled.
- the heat pipe 90 includes a first intermediate plate 96 and a second intermediate plate between the upper member 91 and the lower member 95, as shown in Fig. 19 (A) showing the manufacturing method of the heat pipe 90 in order.
- Plate 97, third intermediate plate 98, and fourth intermediate plate 99 are provided.
- the upper member 91, first intermediate plate 96, second intermediate plate 97, third intermediate plate 98, fourth intermediate plate The intermediate plate 99 and the lower member 95 can be laminated and joined together directly by heat press.
- each of the first intermediate plate 96, the second intermediate plate 97, the third intermediate plate 98, and the fourth intermediate plate 99 has a bonding protrusion 101 on the upper surface of the peripheral portion 100, and A plurality of intermediate plate center protrusions 102 slightly projecting from the upper surface force are provided at positions corresponding to the device to be cooled 4, The sheet can be directly joined via the joint projection 101 and the intermediate plate central projection 102 by sheet pressing.
- FIG. 20 which shows the entire configuration of the upper inner surface of the lower member 95
- the lower member side lattice-shaped recess 17 is formed, and the cooled device disposition portion 4 on the upper inner surface 95b is formed.
- a lower abutting portion 105 having a square shape is formed in a region corresponding to 1 and a rectangular lower central protrusion 106 slightly projecting at each corner of the lower abutting portion 105 is provided.
- the lower center projection 106 is joined to the fourth intermediate plate 99 by a heat press together with the joint projection 107 provided along the peripheral portion 16, and can be integrally joined. .
- the lower contact portion 105 includes the upper member 91, the first intermediate plate 96, the second intermediate plate 97, the third intermediate plate 98, the fourth intermediate plate 99, and the lower member 95.
- a support post structure can be formed at the central portion together with the intermediate plate central protrusion 102 and the upper contact portion 110.
- the upper member side lattice-shaped recess 21 is formed and corresponds to the cooled device disposition portion 4 on the lower inner surface 91b.
- An upper contact portion 110 is formed in the region.
- the upper contact portion 110 is formed when the upper member 91, the first intermediate plate 96, the second intermediate plate 97, the third intermediate plate 98, the fourth intermediate plate 99, and the lower member 95 are integrated.
- the column structure in the center portion can be formed by integrating with the fourth intermediate plate 99.
- the lower member 95, the fourth intermediate plate 99, the third intermediate plate 98, the second intermediate plate 97, the first intermediate plate 96, and the upper member 91 are sequentially laminated with a lower force. Then, after positioning based on the positioning hole 5, it can be directly bonded and integrally formed as shown in FIG. 19B by heat pressing.
- a predetermined amount of refrigerant M (for example, water) is injected into the internal space 111 of the heat pipe 90 using the refrigerant injection hole 92 force refrigerant dispenser 111 under atmospheric pressure.
- the air discharge hole 93 serves as an air discharge port when the refrigerant is supplied, so that the refrigerant M can be smoothly injected into the internal space 111.
- the amount of the refrigerant M enclosed is preferably equivalent to the total volume of the through holes in the case of water, for example.
- a predetermined number of sealing members 94 made of, for example, a spherical body are prepared in advance, and another manufacturing method of the heat pipe 90 is shown in order, as shown in FIG. 92 and air
- the sealing member 94 is placed on the discharge hole 93.
- FIG. 23 (A) showing the front configuration of the refrigerant injection hole 92 and the refrigerant injection
- FIG. 23 (B) which shows a side sectional configuration of the use hole 92, a cylindrical opening 113 having the largest opening at the center is provided, and a plurality of openings are formed on the inner peripheral surface of the opening 113.
- a vent groove 114 is provided.
- the gas venting grooves 114 have a semicircular shape with a diameter smaller than the diameter of the opening 113, and four are arranged at equal intervals on the inner peripheral surface of the opening 113. It has a configuration.
- vacuum degassing for example, atmospheric pressure 0.5 KPa
- depressurization is performed for about 10 minutes, for example, at a low temperature (0 ° C to room temperature (for example, 25 ° C)) through the gas vent groove 114.
- the sealing member 94 is pressurized (10 to 80 kgZcm 2 ) with a press 116 for several minutes in a low temperature state, and deformed at a low temperature by pressing.
- the coolant injection hole 92 and the air discharge hole 93 are temporarily sealed with the sealing member 94 by performing the low-temperature vacuum pressurization process.
- the coolant injection hole 92 and the air discharge hole 93 are closed by the sealing member 94.
- the gas vent groove 114 is formed even when the spherical sealing member 94 is placed on the coolant injection hole 92 and the air discharge hole 93.
- the arrow in Fig. 22 (B) indicates the direction of deaeration (outgassing).
- the degassing groove 114 is not only when the sealing member 94 is placed on the refrigerant injection hole 92 but when the sealing of the refrigerant injection hole 92 is advanced to some extent. Even so, the inner space 111 of the heat pipe 90 is kept in communication with the outside, and is formed so that it can be blocked by the sealing member 94 by pressurization and heating after the low-temperature vacuum heat treatment! .
- the degree of vacuum is set to, for example, 0.5 KPa at a high temperature (room temperature (for example, 25 ° C) to 180 ° C) for about 10 minutes, and the sealing member is further pressed by a press 116. 94 Pressurize from above (30 to 150 kgZcm 2 ). As a result, the sealing member 94 is plastically flowed and deformed by high-temperature caloric pressure, and the coolant injection hole 92 and the air discharge hole 93 are more tightly blocked by the sealing member 94 as shown in FIG. It becomes a state.
- a high temperature of about 120 ° C is preferable, and as the pressure for deforming the sealing member 94 at a high temperature, about lOOkgZcm 2 is preferable.
- the sealing member 94 mainly plastically flows due to pressurization, and supplementarily (accordingly) plastically flows due to heating, and includes the vent hole 114 and the refrigerant injection hole 92 and the air discharge hole 93. Can be occluded.
- the heating is stopped, the vacuuming is stopped, and the pressurization is released by the press 116, and the pressurization, heating, and vacuuming are performed.
- the spherical sealing member 94 is formed into a coolant injection hole 92 and an air discharge hole 93 due to plastic flow, and substantially becomes a sealing plug.
- the internal space 111 of the heat pipe 90 is sealed to form a sealed space 112.
- the refrigerant injection hole 92 provided with the gas vent groove 114 and the air discharge hole 93 are provided in the upper outer surface 91a of the upper member 91, and the refrigerant injection hole 92 allows the refrigerant to pass through.
- a spherical sealing member 94 is placed on the coolant injection hole 92 and the air discharge hole 93, and the sealing member 94 is heated and pressed by the press 116 while the internal space 111 is decompressed. I did it.
- the sealing member 94 plastically flows and deforms in accordance with the shapes of the refrigerant injection hole 92 and the air discharge hole 93 to substantially become a sealing plug, and the internal space 111 is decompressed. It can seal reliably in the state made to do.
- a plurality of heat pipes 90 are arranged under vacuum, and the heat pipe 90 is provided on the refrigerant injection hole 92 and the air discharge hole 93 of each heat pipe 90.
- the sealing member 94 is placed, and the plurality of heat pipes 90 are degassed at once, the sealing member 94 is pressurized and heated, and all the sealing members 94 are plastically flowed to form a refrigerant. Can be sealed.
- the mass production of the heat pipe 90 can be increased, and by increasing the mass productivity, the low cost of the heat pipe 90 Can also be planned.
- a gas vent groove 114 in which the inner peripheral surface of the opening 113 is cut out is separately provided as the refrigerant injection hole 92 and the air discharge hole 93.
- the heat pipe 90 when the refrigerant injection hole 92 and the air discharge hole 93 are sealed with the sealing member 94, vacuum deaeration is performed through the gas vent groove 114. Even if a harmful component that corrodes the inside of the heat pipe 90 exists in the internal space 111, the air in the internal space 111 is extracted through the gas vent groove 114. It is possible to reliably remove harmful components from the inside. Therefore, it is possible to provide the heat pipe 90 that can reduce the outgas concentration and prevent the life reduction due to internal corrosion.
- the sealing member 94 made of a plastic metal is plastically flowed and deformed to form a sealing plug, so that the gas vent groove 114 can be reliably closed by the sealing member 94.
- the refrigerant injection hole 92 and the air discharge hole 93 are completely blocked, and the refrigerant M is completely enclosed in the internal space 111 of the heat pipe 90 so that the refrigerant M does not leak. it can.
- the sealed space 112 is in a depressurized state (when the refrigerant is water, for example, about 0.5 KPa), the boiling point of the refrigerant is lowered, and the temperature is, for example, 50 ° C or lower. Even at temperatures slightly higher than room temperature (for example, about 30 ° C to 35 ° C), the refrigerant easily becomes vapor.
- the refrigerant M evaporates even with a slight heat from the apparatus to be cooled 13, and the vapor diffuses to the peripheral parts 16, 20 side through the vapor diffusion flow path 10, and the peripheral part
- the circulation phenomenon of the refrigerant M is continuously and easily repeated so that the refrigerant M condensed and liquefied on the 16th and 20th side returns to the center side again through the capillary channel 11 by the capillary phenomenon. Can be repeated.
- the refrigerant M becomes steam at a temperature slightly higher than room temperature, and the circulation phenomenon of the refrigerant M is continuously repeated to equalize the heat, so that the cooled device 1 3 Can be efficiently cooled.
- the heat sink 90 of the present invention can achieve the same cooling effect as a conventional heat pipe without using a heat sink, and the number of parts of the heat pipe 90 itself is reduced by the fact that no heat sink is used. it can.
- the refrigerant injection hole 92 is provided in the vicinity of one corner portion of the pair of opposing corner portions, and is used for air discharge.
- the hole 93 in the vicinity of the other corner opposite to the one corner, the supply of the refrigerant M to the entire internal space 111 of the heat pipe 90 can be facilitated smoothly.
- Example 4 the refrigerant injection hole 92 and the air discharge hole having four semicircular gas extraction grooves 114 provided on the inner peripheral surface of the cylindrical opening 113 are provided.
- FIG. 24 (A) showing the front structure of the refrigerant injection hole 92 or the air discharge hole 93 and the side sectional structure are shown.
- FIG. 24 (B) the refrigerant injection hole 120 and the air discharge hole are formed in an inverted trapezoidal cone shape that gradually decreases as the diameter of the upper end increases and goes down, and becomes the minimum at the lower end.
- the spherical sealing member 94 plastically flows as shown in FIG. 24 (C), which shows the sealing state by the sealing member 94. It is deformed according to the shape of the injection hole 120 and the air discharge hole 1 21 to substantially become a sealing plug, and the internal space 111 is securely sealed. Monkey in.
- FIG. 25 (A) showing the front configuration of another refrigerant injection hole 133 or air discharge hole 134, and the side
- FIG. 25 (B) showing the cross-sectional structure
- the upper portion 130 has a large short cylindrical force and a lower portion 131 also has a small short cylindrical force.
- the coolant injection hole 133 and the air discharge hole 134 that are integrally formed through the step portion 132 may be applied.
- FIG. 25 (C) showing the state of sealing by another sealing member 94.
- the sealing member 94 plastically flows and completely fills the lower portion 131, the remaining portion of the sealing member 94 is accommodated in the upper portion 130 having a large diameter. It can be prevented from protruding from the upper outer surface 91a. Accordingly, the upper outer surface 91a of the heat pipe 90 can be formed flat even when sealed by the sealing member 94.
- the refrigerant injection holes 37 and 92 and the air discharge holes 38 and 93 are applied as one or a plurality of refrigerant injection holes.
- the coolant injection hole 92 in which the coolant injection hole 92 and the air discharge hole 93 are integrally formed has two coolant injection holes 92, one of which is used as a coolant injection hole and the other is air. It may be used as a discharge hole.
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- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
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Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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KR1020077002522A KR101202539B1 (ko) | 2005-09-01 | 2006-08-31 | 히트 파이프 및 그 제조 방법 |
JP2007501638A JP4047918B2 (ja) | 2005-09-01 | 2006-08-31 | ヒートパイプ及びその製造方法 |
CN2006800005969A CN101133295B (zh) | 2005-09-01 | 2006-08-31 | 热管及其制造方法 |
CA002614471A CA2614471A1 (en) | 2005-09-01 | 2006-08-31 | Heat pipe and method for manufacturing same |
US11/573,534 US20080135214A1 (en) | 2005-09-01 | 2006-08-31 | Heat Pipe and Method for Manufacturing Same |
EP06797209A EP1930682A4 (en) | 2005-09-01 | 2006-08-31 | HEATHER AND MANUFACTURING METHOD THEREFOR |
TW095135116A TWI409425B (zh) | 2005-12-05 | 2006-09-22 | 熱管 |
Applications Claiming Priority (6)
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JP2005253016 | 2005-09-01 | ||
JP2005-253016 | 2005-09-01 | ||
JP2005-350157 | 2005-12-05 | ||
JP2005350157 | 2005-12-05 | ||
JPPCT/JP2006/301925 | 2006-01-31 | ||
PCT/JP2006/301925 WO2007029359A1 (en) | 2005-09-01 | 2006-01-31 | Heat pipe and method for manufacturing same |
Publications (1)
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WO2007026833A1 true WO2007026833A1 (ja) | 2007-03-08 |
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PCT/JP2006/301925 WO2007029359A1 (en) | 2005-09-01 | 2006-01-31 | Heat pipe and method for manufacturing same |
PCT/JP2006/317249 WO2007026833A1 (ja) | 2005-09-01 | 2006-08-31 | ヒートパイプ及びその製造方法 |
Family Applications Before (1)
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PCT/JP2006/301925 WO2007029359A1 (en) | 2005-09-01 | 2006-01-31 | Heat pipe and method for manufacturing same |
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US (2) | US8534348B2 (ja) |
JP (1) | JP4047918B2 (ja) |
KR (1) | KR101202539B1 (ja) |
CN (1) | CN101133295B (ja) |
CA (1) | CA2614471A1 (ja) |
TW (1) | TWI299781B (ja) |
WO (2) | WO2007029359A1 (ja) |
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- 2006-01-31 US US10/583,504 patent/US8534348B2/en active Active
- 2006-01-31 WO PCT/JP2006/301925 patent/WO2007029359A1/en not_active Application Discontinuation
- 2006-03-15 TW TW095108714A patent/TWI299781B/zh active
- 2006-08-31 WO PCT/JP2006/317249 patent/WO2007026833A1/ja active Search and Examination
- 2006-08-31 US US11/573,534 patent/US20080135214A1/en not_active Abandoned
- 2006-08-31 CA CA002614471A patent/CA2614471A1/en not_active Abandoned
- 2006-08-31 JP JP2007501638A patent/JP4047918B2/ja active Active
- 2006-08-31 KR KR1020077002522A patent/KR101202539B1/ko active IP Right Grant
- 2006-08-31 CN CN2006800005969A patent/CN101133295B/zh active Active
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009257722A (ja) * | 2008-04-21 | 2009-11-05 | Molex Kiire Co Ltd | ヒートパイプおよび電子機器 |
JP2010212623A (ja) * | 2009-03-12 | 2010-09-24 | Molex Inc | 冷却装置および電子機器 |
JP2010267945A (ja) * | 2009-04-16 | 2010-11-25 | Molex Inc | 冷却装置、電子基板、電子機器 |
US8917507B2 (en) | 2009-04-16 | 2014-12-23 | Molex Incorporated | Cooling device, electronic substrate and electronic device |
US11340022B2 (en) | 2017-04-28 | 2022-05-24 | Murata Manufacturing Co., Ltd. | Vapor chamber having pillars with decreasing cross-sectional area |
WO2018198372A1 (ja) * | 2017-04-28 | 2018-11-01 | 株式会社村田製作所 | ベーパーチャンバー |
WO2018199216A1 (ja) * | 2017-04-28 | 2018-11-01 | 株式会社村田製作所 | ベーパーチャンバー |
US10955733B2 (en) | 2019-03-14 | 2021-03-23 | Seiko Epson Corporation | Cooling device and projector |
JP7041445B2 (ja) | 2020-02-05 | 2022-03-24 | 健治 大沢 | 冷媒液導通柱及び冷媒液導通柱を採用しているヒートパイプ |
JP2021124237A (ja) * | 2020-02-05 | 2021-08-30 | 健治 大沢 | 冷媒液導通柱及び冷媒液導通柱を採用しているヒートパイプ |
JPWO2021256328A1 (ja) * | 2020-06-15 | 2021-12-23 | ||
WO2021256328A1 (ja) * | 2020-06-15 | 2021-12-23 | 三井化学株式会社 | 金属樹脂複合体、冷却装置、金属樹脂複合体の製造方法及び安全弁構造 |
WO2024034279A1 (ja) * | 2022-08-08 | 2024-02-15 | 株式会社村田製作所 | 熱拡散デバイス及び電子機器 |
Also Published As
Publication number | Publication date |
---|---|
US20080135214A1 (en) | 2008-06-12 |
US20070056711A1 (en) | 2007-03-15 |
KR101202539B1 (ko) | 2012-11-19 |
CN101133295A (zh) | 2008-02-27 |
JPWO2007026833A1 (ja) | 2009-03-26 |
TWI299781B (en) | 2008-08-11 |
US8534348B2 (en) | 2013-09-17 |
TW200710363A (en) | 2007-03-16 |
KR20080048438A (ko) | 2008-06-02 |
JP4047918B2 (ja) | 2008-02-13 |
WO2007029359A1 (en) | 2007-03-15 |
CN101133295B (zh) | 2010-05-19 |
CA2614471A1 (en) | 2007-03-08 |
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