WO2014192279A1 - 冷却装置およびその製造方法 - Google Patents
冷却装置およびその製造方法 Download PDFInfo
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- WO2014192279A1 WO2014192279A1 PCT/JP2014/002757 JP2014002757W WO2014192279A1 WO 2014192279 A1 WO2014192279 A1 WO 2014192279A1 JP 2014002757 W JP2014002757 W JP 2014002757W WO 2014192279 A1 WO2014192279 A1 WO 2014192279A1
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- cooling device
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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
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- 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
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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
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
- F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/18—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes sintered
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the present invention relates to a cooling device used for a semiconductor device, an electronic device, and the like, and a manufacturing method thereof, for example, a cooling device using a phase change cooling method that transports and dissipates heat by a phase change cycle of refrigerant vaporization and condensation, and a mounting method thereof.
- a cooling device used for a semiconductor device, an electronic device, and the like, and a manufacturing method thereof, for example, a cooling device using a phase change cooling method that transports and dissipates heat by a phase change cycle of refrigerant vaporization and condensation, and a mounting method thereof.
- phase change cooler that uses the phase change of the refrigerant for heat transport has been developed.
- a phase change cooler typically takes heat from a gas phase refrigerant by an evaporator, an external fan, etc. that changes the phase of a liquid phase refrigerant into a gas phase by receiving heat from a heating element, and changes from a gas phase to a liquid phase. Consists of a condensing unit that changes phase.
- the cooling device using the phase change cooling method that transports and dissipates heat by the phase change cycle of the vaporization and condensation of the refrigerant can improve the heat transport capability compared to a heat sink or the like.
- Patent Document 1 An example of a cooling device using such a phase change cooling method is described in Patent Document 1.
- FIG. 7 shows a cross-sectional view of a related cooling device described in Patent Document 1.
- the phase change cooling device 700 is used to cool semiconductor devices such as a central processing unit (CPU) mounted on a circuit board.
- CPU central processing unit
- the related cooling device 700 includes an evaporation unit 702 attached to the surface of a semiconductor device which is a heating element 708, and a condensing unit 701 having a heat radiating surface (radiator).
- a pair of pipes composed of a steam pipe 703 and a liquid pipe 704 are attached between the evaporation section 702 and the condensation section 701.
- Heat generated by the heating element 708 is transmitted to the evaporation unit 702.
- the liquid phase refrigerant is vaporized by the transmitted heat.
- the gas-phase refrigerant that has undergone phase change from the liquid-phase refrigerant is guided from the evaporation unit 702 to the condensing unit 701 through the vapor pipe 703.
- the gas-phase refrigerant is cooled by the cooling fan 709 and returns to the liquid-phase refrigerant. Then, the liquid phase refrigerant returns to the evaporation unit 702 again through the liquid pipe 704.
- FIG. 8 is a cross-sectional view showing another configuration of the related cooling device.
- the phase change cooling device 800 includes an evaporation unit 802 and a condensing unit 801.
- a pair of pipes composed of a steam pipe 803 and a liquid pipe 804 are attached between the evaporation section 802 and the condensation section 801.
- the difference between the configuration of the phase change cooling device 800 and the configuration of the phase change cooling device 700 is that the condensing unit 801 is disposed substantially parallel to the heating element 808 and that the evaporation unit 802 and the condensing unit are directly above the heating element 808.
- the portion 801 and the like are arranged together.
- JP 2011-047616 A Japanese Patent Laid-Open No. 10-335551 JP 09-186279 A
- the cooling device described in Patent Document 1 has a configuration in which the evaporation unit 702 and the condensation unit 701 are mounted separately. For this reason, the cooling device described in Patent Document 1 cannot be used by replacing the existing device layout as it is with respect to an electronic device or the like that is cooled by a heat sink installed immediately above the heating element. In other words, it is necessary to review the internal footprint of the electronic device or the like, or the flow of air blown by a cooling fan or the like (hereinafter referred to as “air flow”). Thus, there was a problem that compatibility with existing cooling devices was lacking.
- the cooling device described in Patent Document 2 has a configuration in which the condensing unit 801 is arranged substantially parallel to the heating element 808, although the evaporation unit 802, the condensing unit 801, and the like are gathered compactly immediately above the heating element. . Therefore, the air flow generated by the cooling fan 809 is substantially perpendicular to the heating element 808, and the air flow in the entire interior of the electronic device or the like changes significantly. For this reason, there has been a problem that the internal airflow of the electronic device or the like needs to be reexamined and compatibility with existing cooling devices is lacking.
- Patent Literature 1 and Patent Literature 2 lack compatibility with existing cooling devices, it is not possible to utilize assets related to the cooling structure. This necessitates a redesign of the device layout dedicated to phase change cooling. As a result, there was a problem that the development and manufacturing costs increased.
- the cooling device using the related phase change cooling method is not compatible with the existing cooling device, so it needs to be redesigned, and the manufacturing cost of the entire device including the cooling target and the cooling device itself is reduced. There was a problem of increasing.
- An object of the present invention is to provide a cooling device that solves the above-described problem that the manufacturing cost of the entire device increases in order to ensure compatibility with existing cooling devices, and a method for manufacturing the same.
- the cooling device of the present invention includes an evaporation unit that stores refrigerant, a condensing unit that condensates and vaporizes vapor phase refrigerant vaporized in the evaporating unit, a vapor pipe that transports the gas phase refrigerant to the condensing unit, and a condensing unit. It has a liquid pipe for transporting the condensed liquid phase refrigerant to the evaporation section and a mounting plate having a connection structure with the device side to be cooled, and the evaporation section is arranged on one surface of the mounting plate, and the condensation section Are arranged on the other side of the mounting plate.
- an attachment plate having a connection structure with the device side to be cooled is formed by providing a connection structure on a flat member, and an evaporation part for storing refrigerant is attached to the attachment plate.
- the condensing part which arrange
- FIG. 1A is a front view showing the configuration of the phase change cooling device 100 according to the first embodiment of the present invention.
- FIG. 1B is a top view showing the configuration of the phase change cooling device 100 according to the first embodiment of the present invention.
- the phase change cooling device 100 includes a condensing unit 101, an evaporating unit 102, a steam pipe 103, a liquid pipe 104, a mounting plate 105, and a condensing unit mounting bracket 107. ing.
- the condensing unit 101 is fixed to the upper surface of the mounting plate 105 by a condenser mounting bracket 107.
- the evaporation unit 102 is located below the attachment plate 105 and is pressed against the heating element 108 by the attachment plate 105.
- the steam pipe 103 connects the steam header 101a at the top of the condensing unit and the evaporating unit 102.
- the liquid pipe 104 connects the liquid header 101b below the condensing unit and the evaporation unit 102.
- the vapor pipe 103 and the liquid pipe 104 connect the condensing unit 101 and the evaporating unit 102 through the shortest paths, respectively.
- the steam pipe 103 extends vertically downward from an elbow 101c that protrudes from the steam header 101a of the condensing part and is connected to an opening provided on the upper surface of the attachment plate 105 and the evaporation part 102. .
- the condensing unit 101 and the evaporation unit 102 are connected through the shortest path.
- one end of the liquid pipe 104 is connected to the evaporation unit 102, and the other end is connected to the bottom surface of the liquid header 101 b of the condensing unit and an opening provided in the attachment plate 105.
- the condensing unit 101 and the evaporation unit 102 are connected through the shortest path.
- the condensing unit 101 is arranged on the mounting plate 105.
- the mounting plate 105 is provided with a cooling device fixing screw hole 115.
- the cooling device fixing screw hole 115 is formed so as to satisfy the compatibility with the screwing portion of the device to be cooled to which the existing cooling device is attached.
- the phase change cooling device 100 can be fixed to the heating element 108 within the footprint of the existing heat sink and at the existing screw hole position.
- the attachment plate 105 can ensure the joining of the evaporation section 102 to the heating element 108.
- the evaporation unit 102 is arranged below the attachment plate 105, the evaporation unit 102 is not provided above the attachment plate 105, and the degree of freedom in arranging the condensation unit 101 above the attachment plate 105 is increased. .
- the lateral width of the heat radiation surface in the condensing unit 101 can be extended to the full width of the mounting plate 105 without being limited by the limitation of the cooling device fixing screw hole 115 and the arrangement of the evaporation unit 102.
- the depth of the heat radiation surface in the condensing unit 101 can be extended within the range allowed by the positions of the steam pipe 103 and the cooling device fixing screw hole 115.
- connection structure of the attachment plate 105 can be configured to be compatible with the connection structure on the device side to be cooled. As a result, compatibility can be ensured and an increase in manufacturing cost of the entire apparatus can be suppressed.
- the phase change cooling device 100 can be adapted to a heating element with a high calorific value.
- a structure or member for promoting the evaporation of the refrigerant is provided on the bottom surface of the evaporation unit 102 in which the refrigerant is accumulated. Thereby, it becomes possible to improve cooling efficiency more.
- FIG. 2 is a perspective view for explaining the details of the configuration of the evaporation unit 102 according to the second embodiment of the present invention.
- FIG. 2 shows an example in which the evaporation assisting member 106 is provided on the bottom surface of the evaporation unit 102.
- the configuration of this embodiment is different from that of the first embodiment in that the evaporation assisting member 106 is installed on the bottom surface of the evaporation unit 102.
- Other configurations of the present embodiment are the same as those of the first embodiment.
- the evaporation assisting member 106 is, for example, a porous member or a pleated member (fin shape), and has a member or structure that increases the surface area. By increasing the surface area, the contact area with the refrigerant increases, so that evaporation of the refrigerant is promoted. Therefore, by providing the evaporation assisting member 106, the evaporation efficiency of the refrigerant in the evaporation unit 102 can be improved. Further, the evaporation unit 102 can be made compact (for example, reduced in height) while maintaining the evaporation efficiency of the refrigerant.
- the height of the condensation section can be extended by that amount while maintaining a constant mounting height.
- the heat radiation area in the condensing part can be expanded, and the cooling efficiency can be further improved.
- FIG. 3A, FIG. 3B, and FIG. 3C are plan sectional views for explaining the details of the configuration of the evaporation section according to the third embodiment of the present invention.
- 3A, 3B, and 3C show an example of a change in the cross-sectional shape of the evaporation assisting member 106 and an example of a change in the degree that the evaporation assisting member 106 occupies the interior of the evaporation unit 102.
- a sintered body containing a metal is used for the evaporation auxiliary member 106.
- the sintered body is cut out from the base material that generates the sintered body, if the cross section of the sintered body 106a is rectangular as shown in FIG. 3A, the sintered body is cut out from the base material without waste.
- the sintered body 106b when the cross section of the sintered body 106b is circular, even if the inside of the evaporation section is a circular space, the sintered body can be installed in the interior of the evaporation section.
- a circular sintered body is cut out from a base material that generates a sintered body, surplus of the base material is generated. As a result, the base material is wasted.
- the sintered body 106c when the cross section of the sintered body 106c has a hexagonal shape, the sintered body can efficiently occupy the inside of the evaporation section even if the inside of the evaporation section is a circular space. Moreover, when the sintered body is cut out from the base material, the hexagonal sintered body can eliminate the surplus of the base material. Therefore, no waste is generated in the base material.
- the above is an example, and is not limited to the shape in the evaporation section and the shape of the sintered body.
- FIG. 4A is a front view showing a configuration of a phase change cooling device 200 according to the fourth embodiment of the present invention.
- FIG. 4B is a top view showing the configuration of the phase change cooling device 200 according to the fourth embodiment of the present invention.
- the configuration of this embodiment is different from that of the first embodiment in that the evaporation unit 202 and the liquid pipe 204 are arranged in a cavity provided on three attachment plates (upper plate 305a, middle plate 305b, and bottom plate 305c). It is the point made into the structure made.
- the evaporating section 202 and the liquid tube 204 are embedded in a cavity provided in three attachment plates (an upper plate 305a, an intermediate plate 305b, and a bottom plate 305c).
- Other configurations of the present embodiment are the same as those of the first embodiment.
- phase change cooling device 200 includes the mounting plate (upper plate 305a, The intermediate plate 305b and the bottom plate 305c) are pressed against the heating element 208.
- the same effect as that of the first embodiment is obtained.
- the evaporation unit and the like in the mounting plate can be reduced from the components of the phase change cooling device. Can do.
- the number of parts of the entire phase change cooling device is reduced, and as a result, cost advantages can be expected.
- fins 206 d may be installed in the evaporation unit 202. By providing the fin 206d, evaporation can be promoted, and the cooling efficiency is further improved.
- FIG. 5A is a front view for explaining the structure of each layer of the upper plate 305a, middle plate 305b, and bottom plate 305c of the mounting plate according to the fifth embodiment of the invention.
- FIG. 5B is a back view for explaining the configuration of each layer of the upper plate 305a, middle plate 305b, and bottom plate 305c of the mounting plate according to the fifth embodiment of the present invention.
- FIG. 5A shows the surfaces of the mounting plates (upper plate 305a, middle plate 305b, and bottom plate 305c) in which members corresponding to the evaporation section 202 and the liquid pipe 204 in FIGS. 4A and 4B are embedded.
- FIG. 5B shows the back surface of the mounting plates (upper plate 305a, middle plate 305b, and bottom plate 305c) in which members corresponding to the evaporation section 202 and the liquid pipe 204 are embedded.
- the combination member of the liquid pipe hole 325a and the liquid pipe hole 325b corresponds to the liquid pipe 204 in FIGS. 4A and 4B.
- the functions corresponding to the evaporation unit 202 and the liquid pipe 204 of this embodiment are incorporated in a laminate of the upper plate 305a, the middle plate 305b, and the bottom plate 305c.
- the upper plate 305a is formed with a steam pipe connecting portion 335a and a liquid pipe hole 325a.
- the back surface of the upper plate 305a functions as the upper surface of the evaporation unit 202 (see FIGS. 4A and 4B).
- a steamer hole 335b and a liquid pipe hole 325b are formed in the intermediate plate 305b.
- the liquid tube hole 325b is not only formed so as to open in a direction substantially perpendicular to the surface of the intermediate plate 305b, but also in a direction substantially parallel to the surface of the intermediate plate 305b. Grooves are formed.
- a liquid pipe hole 325b is formed in an L-shape of the alphabet like the liquid pipe 204 in FIG. 4 (the same applies to the liquid pipe 102 in FIG. 2).
- the inner wall of the steamer hole 335b of the intermediate plate 305b functions as a side surface of the evaporation unit 202 (see FIGS. 4A and 4B).
- a fin 306d may be formed on the bottom plate 305c on the surface side in contact with the refrigerant. By providing the fin 306d, evaporation can be promoted. Further, the surface of the bottom plate 305 c functions as the bottom surface of the evaporation unit 202.
- the evaporation section 302 is formed by a space sandwiched between the surface of the bottom plate 305c, the inner wall of the steamer hole 335b of the middle plate 305b, and the back surface of the upper plate 305a.
- the liquid pipe 204 is formed from a space between the liquid pipe hole 325a of the intermediate plate 305b and the surface of the liquid pipe hole 325b of the intermediate plate 305b and the bottom plate 305c.
- FIGS. 5A and 5B The configuration of the embodiment shown in FIGS. 5A and 5B is the same as the configuration of the embodiment shown in FIGS. 4A and 4B except for the configurations related to the upper plate 305a, the middle plate 305b, and the bottom plate 305c. Further, the embodiment shown in FIGS. 5A and 5B has the same effect as the first embodiment, similarly to the embodiment shown in FIGS. 4A and 4B.
- the evaporation section and the liquid pipe can be manufactured by combining plate-like members such as a bottom plate, an intermediate plate, and an upper plate, it is possible to utilize design assets and reduce processing costs. As a result, it is possible to further reduce the manufacturing cost.
- the combination of the plate-like members is not limited to three. Various applications other than those illustrated here are possible.
- FIG. 6A is a surface view for explaining each layer of the mounting plate according to the fifth embodiment of the present invention.
- FIG. 6B is a back view for explaining each layer of the mounting plate according to the fifth embodiment of the present invention.
- the evaporation section and the liquid pipe are produced by combining plate-like members such as a bottom plate, an intermediate plate, and an upper plate.
- the configuration of this embodiment is different from that of the fourth embodiment in that the bottom plate that forms the bottom surface of the evaporation section is made of the same metal material as the sintered body. That is, the bottom plate forming the bottom surface of the evaporation unit 402 is a sintered body-forming bottom plate 405d formed of the same metal material as the sintered body 406.
- the evaporation of the refrigerant is promoted by providing the sintered body 406 on the inner bottom surface of the evaporation section.
- the metal material which can form a sintered compact is limited, and may differ from the metal material which comprises the bottom face of an evaporation part. If it does so, the case where it becomes difficult to join between dissimilar metals arises, ensuring the favorable heat conductivity between dissimilar metals.
- the bottom plate 405d is fixed to the middle plate by screwing or the like through the screw hole 455d of the bottom plate and the screw hole 355b of the middle plate.
- a ring-shaped groove 465d may be provided in the bottom plate 405d, and the 0-ring may be disposed in the groove.
- a part or all of the first and second embodiments can be described as follows, but is not limited thereto.
- (Appendix 1) An evaporating section for storing refrigerant; A condensing part that condenses and liquefies the gas-phase refrigerant vaporized in the evaporating part; and A vapor pipe for transporting the gas-phase refrigerant to the condensing unit; A liquid pipe for transporting the liquid-phase refrigerant condensed in the condensing unit to the evaporation unit; A mounting plate with a connection structure with the device to be cooled, And having The evaporator is disposed on one surface of the mounting plate, and the condensing unit is disposed on the other surface of the mounting plate.
- the mounting plate further includes a second opening on an upper surface thereof, The cooling device according to any one of appendices 1 to 3, wherein a connection portion of the steam pipe is formed in a second opening on the upper surface of the mounting plate.
- the mounting plate is An upper plate that forms the upper surface of the evaporation section, the connection section of the steam pipe and the connection section of the liquid pipe; A side plate of the evaporation section and an intermediate plate forming the liquid pipe; A bottom plate forming a bottom surface of the evaporation section;
- the cooling device according to any one of appendices 1 to 7, wherein a fin-like protrusion is formed on a bottom surface of the evaporation unit that is in contact with the liquid phase refrigerant.
- Appendix 9 The cooling device according to any one of appendices 1 to 7, wherein a sintered body is joined to a bottom surface of the evaporating part in contact with the liquid phase refrigerant.
- Appendix 10 The cooling according to claim 9, wherein the sintered body has a porous shape, and the sintered body and a bottom surface of the evaporation section are joined so that the porous shape is substantially maintained. apparatus.
- a mounting plate having a connection structure with the device side to be cooled is formed by providing a connection structure on the planar member, An evaporator for storing the refrigerant is disposed on one surface of the mounting plate; A condensing part that condenses and liquefies the gas-phase refrigerant vaporized in the evaporation part is disposed on the other surface of the mounting plate, The manufacturing method of the cooling device which connects the said condensation part with piping to the said evaporation part.
- (Appendix 14) Forming a first planar member partially having an opening; 14.
- the present invention can be used, for example, in a cooling device using a phase change cooling system that transports and dissipates heat by a phase change cycle of refrigerant vaporization and condensation, and a method for attaching the cooling device.
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Abstract
Description
次に、本発明を実施するための形態について図面を参照して説明する。なお、以下の説明では、同じ機能を有するものには同じ符号をつけ、その説明を省略する場合がある。
図1Aは、本発明の第1の実施形態に係る相変化冷却装置100の構成を示す正面図である。図1Bは、本発明の第1の実施形態に係る相変化冷却装置100の構成を示す上面図である。
以上のような構造により、既存のヒートシンクのフットプリント内で、かつ、既存のねじ穴位置において、相変化冷却装置100を発熱体108に固定することができる。取り付け板105により、蒸発部102の発熱体108への接合が確保できる。
以上のように、本実施形態の相変化冷却装置100によれば、取り付け板105の接続構造を冷却対象となる装置側の接続構造と適合した構成とすることができる。その結果、互換性を確保することができ、装置全体の製造コストの増大を抑制することができる。
本実施形態では、冷媒が蓄積される蒸発部102の底面に、冷媒の蒸発を促進する構造や部材を設けた構成とした。これにより、冷却効率をより向上させることが可能となる。
図3A、図3Bおよび図3Cは、本発明の第3の実施形態に係る蒸発部の構成の詳細を説明するための平面断面図である。図3A、図3Bおよび図3Cは、蒸発補助部材106の断面形状の変化例や、蒸発部102内部を蒸発補助部材106が占有する度合いの変化例を示している。
図4Aは、本発明の第4の実施形態に係る相変化冷却装置200の構成を示す正面図である。図4Bは、本発明の第4の実施形態に係る相変化冷却装置200の構成を示す上面図である。
また、中板305bの蒸気器穴335bの内壁は、蒸発部202(図4A、B参照)の側面として機能する。底板305cには、フィン306dが、冷媒が接する面側に形成してあってもよい。フィン306dを設けることで蒸発を促進することができる。また、底板305cの表面は、蒸発部202の底面として機能する。
図6Aは、本発明の第5の実施形態に係る取り付け板の各層を説明するための表面図である。図6Bは、本発明の第5の実施形態に係る取り付け板の各層を説明するための裏面図である。
(付記1)
冷媒を貯蔵する蒸発部と、
前記蒸発部で気化した気相冷媒を凝縮液化させて放熱する凝縮部と、
前記気相冷媒を前記凝縮部へ輸送する蒸気管と、
前記凝縮部で凝縮した液相冷媒を前記蒸発部へ輸送する液管と、
冷却対象となる装置側との接続構造を備えた取り付け板、
とを、有し、
前記蒸発部は前記取り付け板の一の面に配置し、前記凝縮部は前記取り付け板の他の面に配置している
冷却装置。
(付記2)
前記蒸発部および前記液管の少なくとも一部が、前記取り付け板内の板厚方向の一部に設けられた空洞内に配置している
付記1に記載の冷却装置。
(付記3)
前記凝縮部はその底面に開口を備え、かつ、前記取り付け板はその上面に第1の開口を備え、
前記凝縮部の底面の開口と前記取り付け板上面の第1の開口とが接して、前記液管が形成されている
ことを特徴とする付記1または2に記載の冷却構造。
(付記4)
前記取り付け板はその上面に第2の開口をさらに備え、
前記蒸気管の接続部が前記取り付け板上面の第2の開口に形成されている
ことを特徴とする付記1乃至3のいずれか1項に記載の冷却装置。
(付記5)
前記取り付け板は、複数の平板部材を積層して形成されている
ことを特徴とする付記1乃至4のいずれか1項に記載の冷却装置。
(付記6)
前記取り付け板は、
前記蒸発部の上面および前記蒸気管の接続部および前記液管の接続部を形成する上板と、
前記蒸発部の側面および前記液管を形成する中板と、
前記蒸発部の底面を形成する底板と、
を含むことを特徴とする付記5に記載の冷却装置。
(付記7)
前記取り付け板の大きさが冷却対象となる発熱体と略同等かそれ以上である
ことを特徴とする付記1乃至6のいずれか1項に記載の冷却装置。
(付記8)
前記液相冷媒と接する前記蒸発部の底面に、ひれ状の突起が形成されている
ことを特徴とする付記1乃至7のいずれか1項に記載の冷却装置。
(付記9)
前記液相冷媒と接する前記蒸発部の底面に、焼結体が接合されている
ことを特徴とする付記1乃至7のいずれか1項に記載の冷却装置。
(付記10)
前記焼結体は多孔質形状を備え、前記多孔質形状が略維持されるように、前記焼結体と前記蒸発部の底面とが接合されている
ことを特徴とする付記9に記載の冷却装置。
(付記11)
前記焼結体と前記底板とが同じ金属で形成されている
ことを特徴とする付記9または10に記載の冷却装置。
(付記12)
前記底板が、前記中板および前記上板の両方、またはいずれか一方と異なる金属で構成されていることを特徴とする付記6乃至11のいずれか1項に記載の冷却装置。
(付記13)
冷却対象となる装置側との接続構造を備えた取り付け板を、平面部材に接続構造を設けることにより形成し、
冷媒を貯蔵する蒸発部を前記取り付け板の一の面に配置し、
前記蒸発部で気化した気相冷媒を凝縮液化させて放熱する凝縮部を前記取り付け板の他の面に配置し、
前記蒸発部に前記凝縮部を配管で接続する
冷却装置の製造方法。
(付記14)
一部に開口を備えた第1の平面部材を形成し、
前記第1の平面部材の上面および下面に、第2の平面部材と第3の平面部材を積層することにより、前記取り付け板と前記蒸発部を形成する工程を含む
付記13に記載の冷却装置の製造方法。
101、201、701、801 凝縮部
101a、201a 蒸気ヘッダー
101b、201b 液ヘッダー
101c、201c エルボウ
101d、201d 冷却管(チューブ)
102、202、302、402、702、802 蒸発部
103、203、703、803 蒸気管
104、204、304、704、804 液管
105、205 取り付け板
115、215、315a、315b、315c 冷却装置固定ねじ穴
305a 上板
325a 液管穴
335a 蒸気管接続口
305b 中板
325b 液管穴
335b 蒸発器穴
345b 液管切欠き
355b 底板固定ねじ穴
305c 底板
405d 焼結体形成底板
455d 底板固定ねじ穴
465d オーリング固定溝
106 蒸発補助部材
106a、106b、106c、406 焼結体
206d、306d フィン
107、207 凝縮部取り付け金具
108、208、708、808 発熱体
709、809 冷却ファン
Claims (10)
- 冷媒を貯蔵する蒸発部と、
前記蒸発部で気化した気相冷媒を凝縮液化させて放熱する凝縮部と、
前記気相冷媒を前記凝縮部へ輸送する蒸気管と、
前記凝縮部で凝縮した液相冷媒を前記蒸発部へ輸送する液管と、
冷却対象となる装置側との接続構造を備えた取り付け板、
とを、有し、
前記蒸発部は前記取り付け板の一の面に配置し、前記凝縮部は前記取り付け板の他の面に配置している
冷却装置。 - 前記蒸発部および前記液管の少なくとも一部が、前記取り付け板内の板厚方向の一部に設けられた空洞内に配置している
請求項1に記載の冷却装置。 - 前記凝縮部はその底面に開口を備え、かつ、前記取り付け板はその上面に第1の開口を備え、
前記凝縮部の底面の開口と前記取り付け板上面の第1の開口とが接して、前記液管が形成されている
ことを特徴とする請求項1または2に記載の冷却構造。 - 前記取り付け板は、複数の平板部材を積層して形成されている
ことを特徴とする請求項1乃至3のいずれか1項に記載の冷却装置。 - 前記取り付け板は、
前記蒸発部の上面および前記蒸気管の接続部および前記液管の接続部を形成する上板と、
前記蒸発部の側面および前記液管を形成する中板と、
前記蒸発部の底面を形成する底板と、
を含むことを特徴とする請求項4に記載の冷却装置。 - 前記液相冷媒と接する前記蒸発部の底面に、ひれ状の突起が形成されている
ことを特徴とする請求項1乃至5のいずれか1項に記載の冷却装置。 - 前記液相冷媒と接する前記蒸発部の底面に、焼結体が接合されている
ことを特徴とする請求項1乃至5のいずれか1項に記載の冷却装置。 - 前記焼結体と前記底板とが同じ金属で形成されている
ことを特徴とする請求項7に記載の冷却装置。 - 前記底板が、前記中板および前記上板の両方、またはいずれか一方と異なる金属で構成されている
ことを特徴とする請求項5乃至8のいずれか1項に記載の冷却装置。 - 冷却対象となる装置側との接続構造を備えた取り付け板を、平面部材に接続構造を設けることにより形成し、
冷媒を貯蔵する蒸発部を前記取り付け板の一の面に配置し、
前記蒸発部で気化した気相冷媒を凝縮液化させて放熱する凝縮部を前記取り付け板の他の面に配置し、
前記蒸発部に前記凝縮部を配管で接続する
冷却装置の製造方法。
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US14/892,443 US20160116225A1 (en) | 2013-05-29 | 2014-05-26 | Cooling device and method for manufacturing same |
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CN109037882A (zh) * | 2018-07-26 | 2018-12-18 | 西南电子技术研究所(中国电子科技集团公司第十研究所) | 机载相控阵天线相变储热液冷散热箱 |
TWI805943B (zh) * | 2020-09-09 | 2023-06-21 | 萬在工業股份有限公司 | 堆疊式垂直散熱裝置 |
CN113038787B (zh) * | 2020-12-22 | 2022-10-18 | 中科可控信息产业有限公司 | 相变散热结构及散热装置 |
CN115696885B (zh) * | 2022-11-23 | 2023-07-18 | 广东越新微系统研究院 | 一种复合相变储热器件及制备方法、航天电子系统 |
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