WO2018030478A1 - Chambre à vapeur - Google Patents

Chambre à vapeur Download PDF

Info

Publication number
WO2018030478A1
WO2018030478A1 PCT/JP2017/028974 JP2017028974W WO2018030478A1 WO 2018030478 A1 WO2018030478 A1 WO 2018030478A1 JP 2017028974 W JP2017028974 W JP 2017028974W WO 2018030478 A1 WO2018030478 A1 WO 2018030478A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
block
vapor chamber
cavity
chamber according
Prior art date
Application number
PCT/JP2017/028974
Other languages
English (en)
Japanese (ja)
Inventor
佐々木　泰海
義勝 稲垣
聡 濱川
一樹 宮武
川畑　賢也
Original Assignee
古河電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 古河電気工業株式会社 filed Critical 古河電気工業株式会社
Publication of WO2018030478A1 publication Critical patent/WO2018030478A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • F28D15/04—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

Definitions

  • the present invention relates to a vapor chamber that exhibits excellent heat transport characteristics by reducing the flow resistance of a liquid-phase working fluid.
  • a vapor chamber or a flat heat pipe may be used as a method for cooling a heating element such as an electronic component.
  • Patent Document 1 Although a predetermined heat dissipation efficiency can be imparted to the planar heat pipe by the thermal conductivity of the fins, when the condensed liquid-phase working fluid recirculates from the radiator to the heat receiver, It recirculates along the inner surface, that is, the recirculation path of the liquid-phase working fluid becomes longer. Therefore, there is a problem that the flow resistance of the liquid-phase working fluid is large and an excellent heat transport amount cannot be obtained. Further, when the heat generation amount of the heating element is large, the fin has a problem that sufficient heat dissipation characteristics cannot be obtained.
  • an object of the present invention is to provide a vapor chamber that exhibits excellent heat transport characteristics by reducing the flow resistance of a liquid-phase working fluid and having excellent heat dissipation performance.
  • An aspect of the present invention includes a container in which a cavity is formed by one plate-like body thermally connected to a heating element and the other plate-like body facing the one plate-like body, and connected to the container And a working fluid sealed in a space from the hollow portion to the inside of the tubular body.
  • the heating element is thermally connected to the outer surface of one plate-like body of the container, and the tube is attached to the container. Since the cavity that is the internal space of the container communicates with the internal space of the tube, the working fluid is sealed in the space formed from the cavity to the inside of the tube. Moreover, the internal space of the tubular body is in a state where the pressure is reduced by the deaeration process, similarly to the hollow portion.
  • An aspect of the present invention is a vapor chamber in which the hollow portion side end portion of the tubular body is fitted into a through hole of the container.
  • the tubular body is connected to the container by inserting the end of the tubular body side into the through hole of the container. Therefore, the tube body and the container are separate bodies.
  • An aspect of the present invention is a vapor chamber in which a burring is formed in a peripheral portion of the through hole.
  • a vapor projecting from the end surface is provided on the end surface of the tubular body on the side of the cavity, and the tip of the section is in contact with one inner surface on the side of the plate-shaped body Chamber.
  • a protruding section is provided on the end face on the hollow portion side of the tubular body, and the tip of the section is in contact with one inner surface on the one side of the hollow section.
  • An aspect of the present invention is a vapor chamber in which a wick structure is provided on the inner surface of the tube.
  • An aspect of the present invention is a vapor chamber in which a wick structure is provided on the inner surface of the one plate-like body on the hollow portion side.
  • An aspect of the present invention is a vapor chamber in which a plurality of the tubular bodies connected to the container are arranged at an equal distance from a central portion of a heating element that is thermally connected to the one plate-like body.
  • An aspect of the present invention is a vapor chamber in which a surface of the section that is continuous with the inner surface of the tubular body is opposed to a portion to which the heating element is connected among the inner surfaces of the one plate-shaped body. is there.
  • a first block is erected on the inner surface of the one plate-like body on the cavity portion side, and the area in plan view is smaller than the first block around the first block. It is a vapor chamber in which the second block is erected.
  • a 1st block and a 2nd block are provided on the cavity part side inner surface of one plate-shaped body, and both a 1st block and a 2nd block are one plate-shaped body. It is a projection protruding from the cavity side inner surface toward the cavity side inner surface of the other plate-like body.
  • the heating element is thermally connected to the position facing the first block. The first block receives heat from the heating element.
  • plane view means the aspect visually recognized from the perpendicular direction with respect to the plane part of one plate-shaped body (vapor chamber).
  • An aspect of the present invention is a vapor chamber in which the first block is integrally formed with the inner surface on the cavity side of the one plate-like body.
  • the first block and the one plate-like body are integrated.
  • An aspect of the present invention includes a container in which a cavity is formed by one plate-like body thermally connected to a heating element and the other plate-like body facing the one plate-like body, and connected to the container
  • a first block is erected on the inner surface of the one plate-like body on the cavity portion side, and a second block having a smaller area in plan view than the first block is formed around the first block. This is a vapor chamber that is erected.
  • the heating element is thermally connected to the outer surface of one of the plate-like bodies.
  • the first block and the second block are provided on the inner surface of the one plate-like body on the cavity portion side, and both of the first block and the second block are the cavity portions of the one plate-like body. It is the projection part which protruded from the side inner surface toward the cavity part side inner surface direction of the other plate-shaped body.
  • the heating element is thermally connected to the position facing the first block. The first block receives heat from the heating element.
  • the hollow portion that is the internal space of the container and the internal space of the tubular body communicate with each other, the working fluid is sealed in the space formed from the hollow portion to the inside of the tubular body. Moreover, the internal space of the tubular body is in a state where the pressure is reduced by the deaeration process, similarly to the hollow portion.
  • An aspect of the present invention is a vapor chamber in which the first block is erected on a portion of the inner surface of the one plate-like body on the cavity side where the heat generating element has the highest heat generation density.
  • An aspect of the present invention is a vapor chamber in which the first block is integrally formed with the inner surface on the cavity side of the one plate-like body.
  • the first block and the one plate-like body are integrated.
  • the aspect of the present invention includes a first part where the first block and the second block are erected among the one plate-like body, and a second part other than the first part. Is a separate vapor chamber.
  • one plate-shaped body has the 1st site
  • One plate-like body is formed by combining the first part and the second part.
  • An aspect of the present invention is a vapor chamber in which the wick structure is provided on the surface of the first block and the surface of the second block.
  • An aspect of the present invention is a vapor chamber in which a flat fin portion integrally formed with the first block extending from the first block in the planar direction of the one plate-like body is further provided upright. It is.
  • An aspect of the present invention is a vapor chamber in which the shape of the one plate-like body in a plan view is circular.
  • An aspect of the present invention is a vapor chamber in which the shape of the first portion in plan view is circular.
  • An aspect of the present invention is a vapor chamber in which the flat fin portion extends radially from the first block.
  • a plurality of the plate-like fins of the plate-like fin portion formed in one plate-like body or the first portion of the one plate-like body are provided, and the plate-like fins are radially centered around the first block. Has been placed.
  • An aspect of the present invention is a vapor chamber in which the wick structure is provided on a surface of the flat fin portion.
  • An aspect of the present invention is a vapor chamber in which a wick structure is provided on the inner surface of the tube.
  • the degree of freedom in designing the vapor chamber is improved in terms of the arrangement and shape of the tube body.
  • the working fluid since the cavity of the container and the inside of the pipe connected to the container communicate with each other, when the heat receiving part of the cavity receives heat from the heating element, the working fluid is The phase changes from the liquid phase to the gas phase in the cavity, and flows into the pipe body from the cavity of the container.
  • the working fluid in the gas phase that has flowed into the tube body releases latent heat inside the tube body and changes in phase from the gas phase to the liquid phase, and then changes in phase from the gas phase to the liquid phase in the tube body.
  • the working fluid that has undergone a phase change from the gas phase to the liquid phase returns from the tube to the heat receiving portion of the cavity, and the end of the tube is one of the containers.
  • the flow path can be shortened as compared with the reflux path along the inner surface of the container. As a result, the flow resistance of the liquid phase working fluid can be reduced.
  • the gas-phase working fluid flows into the tube body from the cavity of the container and releases latent heat inside the tube body.
  • the phase change is promoted, that is, the latent heat release of the gas phase working fluid is promoted. Therefore, excellent heat dissipation performance can be exhibited.
  • the tube can be attached to the container by being inserted into the through hole of the other plate-like body, the manufacture is easy.
  • the burring is formed at the peripheral portion of the through hole, the tube body is supported by the burring, and the attachment stability of the tube body to the container is improved. By joining the gaps, the sealing property between the through hole and the tube body is improved.
  • the protruding portion is provided on the end surface on the cavity side of the tubular body, and the distal end portion of the section is in contact with one inner surface on the side of the plate-like body.
  • the working fluid that has changed from the phase to the liquid phase can surely be recirculated from the tube body to the inner surface on the one plate-like body side of the hollow portion through a path shorter than the recirculation path along the inner surface of the container.
  • the wick structure is provided on the inner surface of the tubular body, the return of the liquid-phase working fluid from the tubular body to the cavity is promoted.
  • the first block and the second block which are the protrusions, are provided on the inner surface of the hollow portion side of one plate-like body that is thermally connected to the heating element.
  • the evaporation area of the working fluid increases. Therefore, the heat transferability in the heat receiving part is improved, and the thermal resistance of the heat receiving part can be reduced.
  • the area in plan view of the first block is larger than the area in plan view of the second block, when the heating element is thermally connected to a position facing the first block, the first block is Mainly receiving heat from the heating element, the heat received from the heating element can be transmitted in the plane direction of one plate-like body.
  • the first block makes the thermal diffusion in the planar direction of one plate-like body uniform, it is possible to prevent one plate-like body from being locally heated, and as a result, the liquid phase in the heat receiving part. The evaporation of the working fluid can be facilitated.
  • the thermal resistance between the first block and the one plate-like body can be reduced. Heat can be transferred to the inside of the cavity more efficiently.
  • the first block and the second block which are the protrusions, are provided on the inner surface of the hollow portion side of one plate-like body that is thermally connected to the heating element.
  • the evaporation area of the working fluid increases. Therefore, the heat transferability in the heat receiving part is improved, and the thermal resistance of the heat receiving part can be reduced.
  • the area in plan view of the first block is larger than the area in plan view of the second block, when the heating element is thermally connected to a position facing the first block, the first block is Mainly receiving heat from the heating element, the heat received from the heating element can be transmitted in the plane direction of one plate-like body.
  • the first block makes the thermal diffusion in the planar direction of one plate-like body uniform, it is possible to prevent one plate-like body from being locally heated, and as a result, the liquid phase in the heat receiving part. The evaporation of the working fluid can be facilitated. From the above, the vapor chamber of the present invention exhibits excellent heat transport characteristics.
  • the working fluid is transferred to the cavity of the container.
  • the liquid phase changes from the liquid phase to the gas phase and flows into the inside of the tube from the cavity of the container.
  • the working fluid in the gas phase that has flowed into the tube body releases latent heat inside the tube body and changes in phase from the gas phase to the liquid phase, and then changes in phase from the gas phase to the liquid phase in the tube body. Is recirculated from the tube body to the heat receiving portion of the hollow portion.
  • the working fluid that has undergone a phase change from the gas phase to the liquid phase returns from the tube to the heat receiving portion of the cavity, and the end of the tube is one of the containers.
  • the flow path can be shortened as compared with the reflux path along the inner surface of the container.
  • the flow resistance of the liquid phase working fluid can be reduced.
  • the gas-phase working fluid flows into the tube body from the cavity of the container and releases latent heat inside the tube body. Compared with the phase change to the liquid phase, the phase change is promoted, that is, the latent heat release of the gas phase working fluid is promoted. Therefore, excellent heat dissipation performance can be exhibited.
  • the thermal resistance between the first block and the one plate-like body can be reduced. Heat can be transferred to the inside of the cavity more efficiently.
  • the heat from the heating element is transferred from the first block to the plate-like fin portion.
  • the thermal diffusion in the plane direction of the plate-like body can be made smoother.
  • the plate-like fins provided in one plate-like body and the first part are arranged radially around the first block, so that one plate-like body, The heat from the heating element can be efficiently diffused throughout the entire region.
  • the vapor chamber 1 according to the first embodiment of the present invention has two plate-like bodies facing each other, that is, one plate-like body 11 and the other opposite to the one plate-like body 11. From the container 10 in which the cavity portion 13 is formed by overlapping the plate-like body 12, the tube 20 connected to the other plate-like body 12 and communicating with the cavity portion 13 and the internal space, and the cavity portion 13. And a working fluid (not shown) sealed in a space up to the inside of the tube body 20. A heating element (not shown) is thermally connected to the outside of the bottom surface of one plate-like body 11.
  • One plate-like body 11 has a flat plate shape, and the other plate-like body 12 has a flat plate shape.
  • One plate-like body 11 has its central portion plastically deformed into a convex shape.
  • a portion of one plate-like body 11 protruding outward and plastically deformed into a convex shape is a convex portion 14 of the container 10, and the inside of the convex portion 14 is a hollow portion 13.
  • the shape of the container 10 is not particularly limited, but the vapor chamber 1 has a rectangular shape in plan view (viewed from the vertical direction with respect to the plane of the vapor chamber 1).
  • the cavity 13 is decompressed by a deaeration process.
  • a plurality (eight in FIG. 1) of tube bodies 20 are attached to the other plate-like body 12 corresponding to the hollow portion 13.
  • the tube body 20 is arranged in parallel to the peripheral edge portion of the other plate-like body 12.
  • the shape of the tube body 20 is not particularly limited, but in the vapor chamber 1, the shape in the longitudinal direction is linear, and the shape in the direction orthogonal to the longitudinal direction is circular.
  • the tube body 20 is erected vertically with respect to the outer surface of the other plate-like body 12.
  • the end of the tube 20 on the side of the cavity 13 (hereinafter sometimes referred to as “one end”) is open, and the end opposite to the cavity 13 (hereinafter referred to as “the other end”). May be occluded). Further, the hollow space 13 and the internal space of the tubular body 20 are in communication with each other, and the internal space of the tubular body 20 is decompressed by the deaeration process, similarly to the hollow space 13.
  • a first wick structure 23 having a capillary force is provided on the inner surface of the tube body 20.
  • the first wick structure 23 is formed so as to cover the inner surface of the tube body 20.
  • the sintered compact of metal powders such as copper powder, the metal mesh which consists of metal wires, a groove, a nonwoven fabric, etc. can be mentioned.
  • a groove which is a narrow groove formed along the longitudinal direction of the tube body 20 is used as the first wick structure 23.
  • the other plate-like body 12 is formed with a through hole 15 for attaching the tube body 20 to the container 10.
  • the shape and size of the through-hole 15 correspond to the shape and size of the tube body 20, and one end portion 21 of the tube body 20 is inserted into the through-hole 15 of the other plate-like body 12.
  • the tube body 20 is connected to the other plate-like body 12. Therefore, the pipe body 20 and the container 10 (the other plate-like body 12) are separate bodies.
  • the pipe body 20 and the container 10 are separate, the arrangement, shape, dimensions, etc. of the pipe body 20 can be freely selected, and the degree of freedom in designing the vapor chamber 1 is improved. Moreover, since the pipe body 20 can be attached to the container 10 by fitting the pipe body 20 into the through-hole 15 of the other plate-like body 12, assembly is easy.
  • a burring 16 is formed on the peripheral edge of the through hole 15.
  • the burring 16 may extend from the peripheral edge of the through hole 15 toward the cavity 13, and extends from the peripheral edge of the through hole 15 in the direction opposite to the cavity 13 (that is, the outer direction of the vapor chamber 1). An aspect may be sufficient.
  • the burring 16 is configured to extend outward from the peripheral edge of the through hole 15.
  • a method of joining the tubular body 20 attached to the container 10 to the burring 16 and fixing it to the other plate-like body 12 is not particularly limited, and examples thereof include welding, soldering, and brazing.
  • the brazing material is easily collected between the pipe body 20 and the burring 16 and the sealing performance is improved.
  • a mode that extends from the peripheral edge of the through hole 15 toward the cavity 13 is preferable.
  • the burring 16 is provided at the attachment portion of the tubular body 20 to the other plate-like body 12, the tubular body 20 is supported by the burring 16, and the attachment stability of the tubular body 20 to the container 10 is improved.
  • the burring 16 facilitates the joining between the tube body 20 and the other plate-like body 12 and improves the sealing property between the through hole 15 and the tube body 20.
  • one end portion 21 of the tube body 20 is fitted into the through-hole 15 of the other plate-like body 12 so as to be accommodated in the cavity portion 13.
  • One end portion 21 of the tube body 20 accommodated in the cavity portion 13 is provided with a cut 22 along the longitudinal direction of the tube body 20, and a plurality of (six in the drawing) sections 24 are formed by the cut 22. Is formed.
  • the section 24 extends in the longitudinal direction of the tube body 20 without being bent, and the first section 24-1 folded in the plane direction of the other plate-like body 12.
  • the second section 24-2 is a section protruding from the end face of the one end portion 21.
  • first sections 24-1 bent in the planar direction of the other plate-like body 12 and second sections 24-2 extending in the longitudinal direction of the tube body 20 are alternately arranged. Has been.
  • the first section 24-1 prevents the tube body 20 from coming out of the through hole 15. Therefore, it is possible to prevent the tubular body 20 from being detached from the container 10 by the first section 24-1. Further, the side surface of one end portion 21 corresponding to the portion of the first section 24-1 is a notch. Therefore, the gas-phase working fluid can flow into the tube body 20 from the cavity portion 13 through the notch portion. Therefore, the first section 24-1 can facilitate the flow of the gas-phase working fluid from the cavity 13 to the tube body 20.
  • the tip of the second section 24-2 is opposed to one plate-like body (not shown), and the tip of the second section 24-2 is in contact with the one plate-like body.
  • the cavity 13 that has been decompressed can be maintained. That is, the second section 24-2 functions as a support column of the cavity portion 13.
  • a second wick structure 23 ′ having a capillary force is provided on the inner surface of one plate-like body 11.
  • the second wick structure 23 ′ is formed so as to cover the inner surface of one plate-like body 11.
  • 2nd wick structure 23 ' For example, the sintered compact of metal powders, such as copper powder, the metal mesh which consists of metal wires, a groove, a nonwoven fabric, etc. can be mentioned.
  • a metal powder sintered body is used as the second wick structure 23 '.
  • Examples of the material of the container 10 and the pipe body 20 include copper, copper alloy, aluminum, aluminum alloy, nickel, nickel alloy, stainless steel, and titanium.
  • the working fluid to be sealed in the hollow space 13 and the internal space of the tube body 20 can be appropriately selected according to the compatibility with the material of the container 10 and the tube body 20, and for example, water can be cited.
  • fluorocarbons such as alternative chlorofluorocarbon and fluorinate, cyclopentane, ethylene glycol, a mixture of these with water, and the like can be mentioned.
  • the thickness of the vapor chamber 1 is not particularly limited, and examples thereof include 1.0 to 5.0 mm.
  • the thicknesses of one plate-like body 11 and the other plate-like body 12 are not particularly limited. However, for example, it may be 0.1 to 0.3 mm.
  • the cavity 13 of the container 10 and the internal space of the tube 20 connected to the container 10 communicate with each other.
  • the working fluid changes in phase from the liquid phase to the gas phase at the heat receiving part of the cavity 13 and flows into the internal space of the tube body 20 from the cavity 13.
  • the working fluid in the gas phase that has flowed into the inner space of the tube body 20 releases latent heat inside the tube body 20 and changes in phase from the gas phase to the liquid phase, and from the gas phase to the liquid phase in the tube body 20.
  • the phase-change working fluid is returned from the tube 20 to the heat receiving portion of the cavity 13 by the first wick structure 23.
  • the working fluid whose phase has changed from the gas phase to the liquid phase is returned from the tube 20 to the heat receiving portion of the cavity 13, and as shown in FIG.
  • the tip of the second section 24-2 is in contact with the one plate-like body 11 side of the container 10, so that FIG.
  • the path can be shortened compared to the reflux path along the inner surface of the container 10 as shown in FIG. 2, and the flow resistance of the liquid-phase working fluid can be reduced.
  • the tip of the second section 24-2 of the tubular body 20 provided with the first wick structure 23 is in contact with one plate-like body 11. Further, a second wick structure 23 ′ is provided on the inner surface of one plate-like body 11. That is, the first wick structure 23 of the tube body 20 is continuously arranged with the second wick structure 23 ′ of the one plate-like body 11. Therefore, the liquid-phase working fluid inside the tube body 20 is surely piped through the second section 24-2 provided with the first wick structure 23, not through the side wall surface of the cavity portion 13. It is possible to return from the body 20 to one plate-like body 11 and further to the heat receiving part of one plate-like body 11 via the second wick structure 23 '. From the above, the reflux path can be reliably shortened.
  • the gas-phase working fluid flows into the inner space of the tube body 20 from the cavity 13 of the container 10 and releases latent heat in the inner space of the tube body 20. Therefore, the phase change is promoted and the latent heat release of the gas-phase working fluid is promoted as compared with the phase change to the liquid phase of the gas-phase working fluid only inside the container 10. Therefore, the vapor chamber 1 can exhibit excellent heat dissipation performance.
  • heat exchange means is further thermally connected to the tube of the vapor chamber according to the first embodiment.
  • a plurality of tubular heat radiating fins 100 having a flat plate shape are provided as heat exchange means. Holes corresponding to the position and dimensions of the tube body 102 are provided in the tube heat dissipation fin 100, and the tube heat dissipation fin 100 is inserted into the tube body 20 by fitting the tube body 20 into the hole portion. It is fixed.
  • the plurality of tube radiating fins 100 are arranged at equal intervals in the vertical direction with respect to the surface of the vapor chamber 2, and the surface of each of the tube radiating fins 100 is the surface of the vapor chamber 2. It arrange
  • the heat radiating fin 100 for a tubular body is a metal material having good thermal conductivity, and examples thereof include aluminum, an aluminum alloy, copper, and a copper alloy.
  • the release of latent heat from the gas-phase working fluid inside the tube body 20 is further promoted by the tube heat radiation fin 100 thermally connected to the tube body 20.
  • the heat dissipation efficiency can be further improved.
  • a vapor chamber according to a third embodiment of the present invention will be described with reference to the drawings.
  • the same components as those of the vapor chambers according to the first and second embodiments will be described using the same reference numerals.
  • the first section 24-1 bent in the plane direction of the other plate-like body 12 and the second section 24-2 extending in the longitudinal direction of the tube body 20 are used.
  • the second slice 24-2 is connected to the other plate-like body 12 as shown in FIG.
  • the protrusion is provided only on the peripheral edge side of the heater, that is, only on the side far from the position of the heating element.
  • the surface of the second piece 24-2 that is continuous with the inner surface of the one end portion 21 is the heating element (not illustrated) among the inner surfaces of the one plate-shaped body (not illustrated).
  • a second piece 24-2 is provided at a position facing the part of the outer surface of one plate-like body (connected to the central portion). In the vapor chamber 3, one of the six sections is the second section 24-2.
  • the surface of the second section 24-2 that is continuous with the inner surface of the one end portion 21 is opposed to the heating element portion, so that the gas-phase working fluid flows from the cavity to the inside of the tube. Inflow can be made smoother.
  • a vapor chamber according to a fourth embodiment of the present invention will be described with reference to the drawings.
  • the same components as those in the vapor chambers according to the first to third embodiments will be described using the same reference numerals.
  • one plate-like body 11 is different from the first portion 44 and the first portion 44 which are flat plates having a circular shape in plan view.
  • a second part 45 which is a body.
  • the second portion 45 has a flat surface portion 41 and a side surface portion 42 provided on the periphery of the flat surface portion 41, and a hole 46 having a circular shape in plan view is provided in the central portion of the flat surface portion 41. Yes.
  • the first part 44 By fitting the first part 44 into the hole 46, the first part 44 and the second part 45 are combined to form one plate-like body 11. Accordingly, the first portion 44 is located at the center of one plate-like body 11.
  • first block 47 On the inner surface of the first portion 44 on the cavity 13 side, a first block 47 (one in FIG. 7) and a plurality of (28 in FIG. 7) separate from the first block 47 are provided.
  • a second block 48 is erected. Both the first block 47 and the second block 48 are protrusions that protrude from the inner surface of the one plate-like body 11 toward the cavity 13 side of the other plate-like body (not shown). Part. Therefore, both the first block 47 and the second block 48 are columnar members. The top part of the first block 47 and the top part of the second block 48 may or may not be in contact with the cavity 13 side inner surface of the other plate-like body.
  • the first block 47 is disposed at the center of the first part 44. Therefore, the first block 47 is disposed at the center of one plate-like body 11.
  • the second block 48 is arranged around the first block 47. Therefore, the second block 48 is disposed at the peripheral edge of the first portion 44.
  • the first block 47 is integrally formed with the first portion 44 of the one plate-like body 11.
  • the second block 48 is also integrally formed with the first portion 44.
  • forging can be mentioned as an integral molding method.
  • the area of the first block 47 in plan view is larger than the area of each second block 48 in plan view.
  • the shape of the first block 47 and the second block 48 in plan view is not particularly limited, such as a polygonal shape or a circular shape, the vapor chamber 4 has a quadrangular shape. Therefore, the first block 47 and the second block 48 which are the protrusions are prisms (square columns).
  • the second portion 45 includes a flat surface portion 41 and a side surface portion 42 provided on the periphery of the flat surface portion 41.
  • the flat portion 41 of the second portion 45 is not provided with either the first block or the second block.
  • the second wick structure 23 ′ is also formed on the surfaces of the first block 47 and the second block 48. Therefore, the evaporation area of the liquid-phase working fluid is further increased. Therefore, the heat transfer property in the heat receiving part of the vapor chamber 4 is improved, and the thermal resistance of the heat receiving part can be reduced. Further, in the vapor chamber 4, since the area of the first block 47 in plan view is larger than the area of each second block 48 in plan view, the heating element is thermally disposed at a position facing the first block 47. When the first block 47 is located at a portion where the heat generating element has the highest heat generation density (the central portion of the first portion 44 in FIG. 7), the first block 47 is mainly the heating element.
  • the heat received from the heating element is transmitted in the plane direction of the first portion 44 (one plate 11). That is, since the first block 47 promotes thermal diffusion in the planar direction of the first portion 44 (one plate-like body 11), the first portion 44 (one plate-like body 11) is localized. Therefore, it is possible to prevent the liquid-phase working fluid from evaporating smoothly in the heat receiving portion.
  • the first block 47 and the second block 48 are integrated with the first portion 44 (one plate 11), so that the first block 47, the second block 48, and the second block 48 are integrated. Since the thermal resistance between the 1 part 44 (one plate-like body 11) can be reduced, the heat from a heat generating body can be more efficiently transmitted inside the cavity part 13.
  • FIG. 1 one plate-like body 11
  • one plate-like body 11 is a first part 44 including the first block 47 and the second block 48, and the first part 44 is a separate body.
  • the second portion 45 that does not include the second block 48 and the second block 48, the degree of freedom of design of the one plate-like body 11 is improved. The manufacturing cost of the chamber 4 can be reduced.
  • the shape of the tube in the longitudinal direction is linear, but instead, it may be L-shaped or the like, and the shape perpendicular to the longitudinal direction. was circular, but it may be flat or elliptical.
  • the shape in plan view is rectangular, but a circular shape or the like may be used instead.
  • the tubes are arranged in parallel to the peripheral edge of the other plate-like body, but the arrangement of the tubes can be selected according to the usage state of the vapor chamber.
  • a heating element in which a plurality of tubes connected to the other plate is thermally connected to one plate It may be arranged equidistant from the central part.
  • the inner surface of one plate-like body is covered with the second wick structure.
  • the second wick structure may be formed on a part of the inner surface of the plate-like body, and the second wick structure may not be formed on the inner surface of one plate-like body.
  • the tubular body is attached to the flat portion of the other plate-like body (that is, the surface portion of the container). Instead, as shown in FIG. Moreover, it is good also as the vapor chamber 5 by which the pipe body 20 was attached to the side part of the container 10 as a vapor chamber which concerns on the example of 5th Embodiment.
  • the vapor chamber 5 can be installed even if the space in the height direction is limited.
  • the vapor chamber 6 according to the sixth embodiment of the present invention includes two opposing plate-like bodies, that is, one plate-like body 211 having a rectangular shape in plan view and one plate-like body. 211 and the other rectangular plate-like body 212 having a rectangular shape in plan view facing each other, a container 210 having a rectangular shape in plan view having a hollow portion 213 formed therein, and a working fluid (not shown) sealed in the hollow portion 213 ).
  • a heating element (not shown) is thermally connected to the outer surface of one plate-like body 211.
  • One plate-like body 211 has a first portion 214 that is a flat plate having a circular shape in plan view, and a second portion 215 that is a separate body from the first portion 214.
  • the second portion 215 has a flat surface portion 221 and a side surface portion 222 provided on the periphery of the flat surface portion 221, and a hole portion 216 having a circular shape in plan view is provided in the central portion of the flat surface portion 221. Yes.
  • the first part 214 By fitting the first part 214 into the hole 216, the first part 214 and the second part 215 are combined to form one plate-like body 211. Therefore, the first portion 214 is located at the center of one plate-like body 211.
  • a first block 217 and a second block 218 that is a separate body from the first block 217 are erected on the inner surface of the first portion 214 on the cavity 213 side.
  • Each of the first block 217 and the second block 218 is a protrusion that protrudes from the inner surface of the one plate-like body 211 toward the inner side of the cavity 213 of the other plate-like body 212 from the inner surface of the other plate-like body 212. Therefore, the first block 217 and the second block 218 are both columnar members.
  • the top part of the first block 217 and the top part of the second block 218 may or may not be in contact with the inner surface of the other plate-like body 212 on the cavity part 213 side.
  • the first block 217 is disposed at the center of the first part 214. Therefore, the first block 217 is arranged at the center of one plate-like body 211.
  • the second block 218 is arranged around the first block 217. Therefore, the second block 218 is disposed on the peripheral edge of the first portion 214.
  • the first block 217 is integrally formed with the first portion 214 of the one plate-like body 211.
  • the second block 218 is also integrally formed with the first part 214.
  • forging can be mentioned as an integral molding method.
  • one first block 217 is provided, and a plurality of second blocks 218 (28 in FIG. 9) are provided.
  • the area of the first block 217 in plan view is larger than the area of each second block 218 in plan view.
  • the shape of the first block 217 and the second block 218 in plan view is not particularly limited, such as a polygonal shape or a circular shape, but the vapor chamber 6 has a quadrangular shape. Therefore, the first block 217 and the second block 218 which are the protrusions are prisms (square columns).
  • a plate-like fin portion 219 having a plurality of plate-like (four in FIG. 9) plate-like fins 220 is further erected on the inner surface of the first portion 214 on the cavity 213 side.
  • Each flat fin 220 extends from the first block 217 in the planar direction of the one plate-like body 211 toward the peripheral edge of the first portion 214.
  • Each flat fin 220 of the flat fin portion 219 extends radially from the first block 217.
  • all four regions formed between the adjacent flat fins 220 have the same area.
  • Each flat fin 220 may be integrated with or separate from the first block 217, but in the vapor chamber 6, each flat fin 220 is integrated with the first block 217.
  • each region (four regions in FIG. 9) formed between the adjacent flat fins 220, a plurality of second blocks 218 (seven in FIG. 9) are arranged. In each region, the second blocks 218 are arranged at equal intervals.
  • the space between the first block 217 and the second block 218 and between the second blocks 218 is a steam flow path through which a gas-phase working fluid flows.
  • the width of the space is not particularly limited, but the liquid-phase working fluid is prevented from blocking the vapor flow path, and the working fluid that has undergone a phase change from the liquid phase to the gas phase by receiving heat from the heating element is smooth. Is preferably 1.0 mm or more from the point of circulation.
  • a wick structure 223 having a capillary force is provided on the inner surface of the first portion 214 on the cavity 213 side, the surface of the first block 217, the surface of the second block 218, and the surface of the flat fin portion 219. That is, the wick structure 223 is formed so as to cover the inner surface of the first portion 214 on the cavity 213 side, the surface of the first block 217, the surface of the second block 218, and the surface of the flat fin portion 219.
  • the wick structure 223 For example, the sintered compact of metal powders, such as copper powder, the metal mesh which consists of metal wires, a groove, a nonwoven fabric, etc. can be mentioned.
  • the second portion 215 has a flat surface portion 221 and a side surface portion 222 provided on the periphery of the flat surface portion 221.
  • the flat portion 221 of the second part 215 is provided with neither the first block nor the second block.
  • the wick structure 223 is also provided on the surface of the flat portion 221 of the second portion 215.
  • the container 210 having the hollow portion 213 is formed by joining the peripheral portion of the other plate-like body 212 which is a flat plate to the side surface portion 222 of the second portion 215.
  • the bonding method is not particularly limited, and examples thereof include diffusion bonding, brazing, laser welding, ultrasonic welding, friction bonding, and pressure welding. Therefore, the first block 217, the second block 218, and the flat fin portion 219 are accommodated in the cavity portion 213.
  • the internal space of the cavity 213 is a vapor flow path through which a gas-phase working fluid flows, similarly to the space between the first block 217 and the second block 218 and between the second blocks 218. Yes.
  • the cavity 213 is depressurized by a deaeration process.
  • Examples of the material of the container 210 include copper, copper alloy, aluminum, aluminum alloy, nickel, nickel alloy, stainless steel, and titanium.
  • the working fluid to be sealed in the cavity 213 can be appropriately selected according to the compatibility with the material of the container 210.
  • water can be used, and in addition, fluorocarbons such as alternative chlorofluorocarbons and fluorinates, Examples thereof include cyclopentane, ethylene glycol, and a mixture of these with water.
  • the thickness of the vapor chamber 6 is not particularly limited.
  • 1.0 to 5.0 mm can be mentioned, and the thicknesses of one plate-like body 211 and the other plate-like body 212 are not particularly limited. However, for example, it may be 0.1 to 0.3 mm.
  • the other plate-like body 212 of the vapor chamber 6 is provided with a radiating fin member 301 as a heat exchanging means on the flat portion of the outer surface. That is, the vapor chamber 6 is thermally connected to the radiating fin member 301, and the portion thermally connected to the radiating fin member 301 functions as a radiating portion of the vapor chamber 6.
  • the radiating fin member 301 is erected so that the plane portion thereof is perpendicular to the plane portion of the other plate-like body 212.
  • the several radiation fin member 301 is arranged in parallel with each other. The heat received by the vapor chamber 6 from the heating element is transmitted from the vapor chamber 6 to the radiating fin member 301 and released from the radiating fin member 301 to the external environment.
  • a portion thermally connected to a heating element functions as a heat receiving portion.
  • the first block 217 is formed on the portion of the inner surface of the one plate-like body 211 on the cavity portion 213 side where the heat generating element has the highest heat generation density (for example, the central portion of the one plate-like body 211 in FIG. 9).
  • the heating elements are thermally connected so that is located.
  • the first block 217 mainly receives heat from the heating element by thermally connecting the heating element to a position facing the first block 217.
  • the liquid-phase working fluid enclosed in the cavity 213 changes from the liquid phase to the gas phase at the heat receiving portion and flows through the vapor flow path inside the container 210. Then, the heat receiving portion moves from the heat receiving portion to the heat radiating portion of the vapor chamber 6 thermally connected to the heat radiating fin member 301.
  • the gas phase working fluid that has moved to the heat radiating section releases latent heat in the heat radiating section, and changes from the gas phase to the liquid phase.
  • the latent heat released in the heat radiating part is released to the external environment through the heat radiating fin member 301.
  • the working fluid phase-changed from the gas phase to the liquid phase in the heat radiating portion is returned to the heat receiving portion from the heat radiating portion in the wick structure 23.
  • a first block 217 and a second block 218, which are protrusions, are provided on the inner surface on the cavity 213 side of one plate-like body 211 that is thermally connected to the heating element. Since the wick structure 223 is formed on the surfaces of the block 217 and the second block 218, the evaporation area of the liquid-phase working fluid increases. Therefore, the heat transfer property in the heat receiving part of the vapor chamber 6 is improved, and the thermal resistance of the heat receiving part can be reduced. Further, in the vapor chamber 6, since the area of the first block 217 in plan view is larger than the area of each second block 218 in plan view, the heating element is thermally disposed at a position facing the first block 217.
  • the first portion 214 (one plate-like body 211) is mainly due to the size of the area of the first block 217 in plan view.
  • the heat received from the heating element is transmitted in the plane direction. That is, since the first block 217 promotes thermal diffusion in the planar direction of the first part 214 (one plate-like body 211), the first part 214 (one plate-like body 211) is locally localized. Therefore, it is possible to prevent the liquid-phase working fluid from evaporating smoothly in the heat receiving portion. From the above, the vapor chamber 6 can exhibit excellent heat transport characteristics.
  • the first block 217 and the second block 218 are integrated with the first portion 214 (one plate-like body 211), so that the first block 217, the second block 218, Since the thermal resistance between the one part 214 (one plate-like body 211) can be reduced, the heat from the heating element can be more efficiently transferred into the cavity 213.
  • one plate-like body 211 is a first part 214 having the first block 217 and the second block 218, and the first part 214 is a separate body.
  • the degree of freedom of design of the one plate-like body 211 is improved, and further, the one plate-like body 211, and consequently the vapor, is improved.
  • the manufacturing cost of the chamber 6 can be reduced.
  • the flat fins 220 provided in the first portion 214 having a circular shape in a plan view are arranged radially around the first block 217, so that the flat fins 220 are formed. Since heat is diffused radially from the first block 217 along the surface of the first portion 214, the heat from the heating element can be more efficiently diffused throughout the first portion 214. As a result, The cooling performance for the heating element is further improved.
  • a vapor chamber according to a seventh embodiment of the present invention will be described with reference to the drawings.
  • the same components as those of the vapor chamber according to the sixth embodiment will be described using the same reference numerals.
  • the radiating fin member is provided on the flat portion of the outer surface of the other plate-like body.
  • a tubular body 302 is provided in place of the heat dissipating fin member on the flat portion of the outer surface of the other plate-like body 212.
  • the tube 302 functions as a heat radiating member for the vapor chamber 7.
  • the tubular body 302 is linear and is erected vertically with respect to the outer surface of the other plate-like body 212.
  • a plurality (eight in FIG. 10) of the pipe bodies 302 are arranged in parallel on the peripheral edge of the other plate-like body 212.
  • the inside of the tube 302 communicates with the cavity 213 of the vapor chamber 7. That is, one end, which is the end of the tube 302 on the vapor chamber 7 side, is open and the other end is closed. Therefore, the inside of the tubular body 302 is in a state where the pressure is reduced by the deaeration process, similarly to the hollow portion 213.
  • a wick structure (not shown) is provided on the inner surface of the tube 302. Although it does not specifically limit as a wick structure formed in the tubular body 302 inner surface, for example, the sintered compact of metal powders, such as copper powder, the metal mesh which consists of metal wires, a groove, a nonwoven fabric, etc. can be mentioned. Examples of the material of the tube 302 include copper, a copper alloy, aluminum, and an aluminum alloy.
  • a liquid-phase working fluid (not shown) enclosed in the cavity 213 is removed from the liquid phase by the heat receiving portion.
  • the phase changes to the phase and flows through the steam flow path inside the container 210 (cavity 213).
  • the gas phase working fluid flows from the vapor flow path inside the container 210 (cavity 213) into the tube 302 communicating with the cavity 213.
  • the gas-phase working fluid that has flowed into the tube 302 releases latent heat inside the tube 302 and changes from the gas phase to the liquid phase.
  • the latent heat released inside the tube 302 is released to the external environment through the wall surface of the tube 302.
  • the working fluid that has changed in phase from the gas phase to the liquid phase inside the pipe 302 is returned to the cavity 213 from the pipe 302 by the wick structure provided on the inner surface of the pipe 302 and provided in the cavity 213.
  • the wick structure 223 is refluxed from the cavity portion 213 to the heat receiving portion.
  • the vapor chamber 7 according to the seventh embodiment also includes the first on the cavity 213 side inner surface of one plate-like body 211 that is thermally connected to the heating element.
  • the block 217 and the second block 218 are provided, and the wick structure 223 is formed on the surfaces of the first block 217 and the second block 218, so that the evaporation area of the liquid-phase working fluid increases. Therefore, the heat transfer property in the heat receiving part of the vapor chamber 7 is improved, and the thermal resistance of the heat receiving part can be reduced.
  • the heating element is thermally connected to a position facing the first block 217, the first block Since the block 217 promotes thermal diffusion in the planar direction of the first part 214 (one plate-like body 211), the first part 214 (one plate-like body 211) is locally heated. Can be prevented.
  • the working fluid phase-changed from the gas phase to the liquid phase is transferred from the pipe body 302 to the heat receiving part of the cavity 213.
  • the working fluid recirculates.
  • the end of the tube 302 is in contact with or close to one plate-like body 211 side of the container 210 (in FIG. 11A, the end of the tube 302 is one plate-like. From the return path along the inner surface of the container 210 shown in FIG. 11B (the end of the tube 302 is not in contact with or close to one plate-like body 211 side). As a result, the flow resistance of the liquid-phase working fluid can be reduced.
  • the tubular body 302 communicating with the cavity 213, the phase change of the gas phase working fluid to the liquid phase is further promoted, that is, the latent heat release of the gas phase working fluid is further promoted. Therefore, the heat dissipation efficiency of the vapor chamber 7 can be further improved.
  • a vapor chamber according to an eighth embodiment of the present invention will be described with reference to the drawings.
  • the same components as those of the vapor chambers according to the sixth and seventh embodiments will be described using the same reference numerals.
  • the heat exchange means is further thermally connected to the tube of the vapor chamber according to the seventh embodiment.
  • the vapor chamber 8 is provided with a plurality of tubular heat dissipating fins 303 having a flat plate shape as heat exchange means.
  • a through hole corresponding to the position and size of the tubular body 302 is provided in the tubular body radiating fin 303, and the tubular body radiating fin 303 is inserted into the tubular body 302 by inserting the tubular body 302 into the through hole. It is fixed.
  • the plurality of tube radiating fins 303 are arranged at equal intervals in the vertical direction with respect to the surface of the vapor chamber 8, and the surface of each of the tube radiating fins 303 is the surface of the vapor chamber 8. It arrange
  • the heat radiating fin 303 for a tube is a metal material having good thermal conductivity, and examples thereof include aluminum, aluminum alloy, copper, and copper alloy.
  • the release of latent heat from the gas-phase working fluid inside the tube 302 is further promoted by the heat dissipation fins 303 for the tube thermally connected to the tube 302.
  • the heat dissipation efficiency can be further improved.
  • a vapor chamber according to a ninth embodiment of the present invention will be described with reference to the drawings.
  • the same components as those of the vapor chambers according to the sixth to eighth embodiments will be described using the same reference numerals.
  • the vapor chambers according to the sixth to eighth embodiments are containers having a rectangular shape in plan view, and one plate-like body includes a first portion where the first block and the second block are provided, However, as shown in FIGS. 13 and 14, in the vapor chamber 9 according to the ninth embodiment, one of the circular parts in a plan view is provided.
  • This is a container 240 having a circular shape in plan view, which is composed of a plate-like body 241 and the other plate-like body 242 having a circular shape in plan view facing the one plate-like body 241, and one plate-like body 241 is integrated. Yes.
  • neither the first block nor the second block is provided in the second portion corresponding to the peripheral portion of one plate-like body.
  • the second block 218 is also provided at the peripheral portion of one plate-like body 241.
  • the second blocks 218 are arranged concentrically and radially with the first block 217 positioned at the center of one plate-like body 241 as the center.
  • the arrangement of the second block 218 increases the evaporation area of the liquid-phase working fluid over the entire plate-like body 241 having a circular shape in plan view. Therefore, heat transferability is improved over the entire vapor chamber 9, and the thermal resistance can be reduced.
  • one plate-like body 241 is not provided with a flat fin portion.
  • the heat dissipating fins for tubes are thermally connected to the linear tubes, but as shown in FIGS. 13 and 14, according to the ninth embodiment.
  • the heat dissipating fins 313 for the tubular body are thermally connected to the tubular body 312 having a substantially L shape in plan view.
  • the other plate-like body 242 has a flat surface portion and a side surface portion provided on the periphery of the flat surface portion, and a side surface portion of the other plate-shaped body 242.
  • a container 240 having a hollow portion is formed by joining the peripheral edge portion of one plate-like body 241 that is a flat plate to each other.
  • the end surface of one end portion of the substantially L-shaped tube body 312 in plan view is connected to the flat surface portion (surface portion of the vapor chamber 9) of the other plate-like body 242.
  • the inside of the tubular body 312 having a substantially L shape in plan view communicates with the inside of the container 240 (cavity).
  • a plurality of pipe bodies 312 having a substantially L shape in plan view are provided at equal intervals along the periphery of the plane portion of the other plate-like body 242 that is circular in plan view (six in FIG. 13 and FIG. 14). Is attached.
  • the load of heat transport of the substantially L-shaped tube bodies 312 in plan view can be made uniform, and the tube body 312 can be uniformly used from the entire vapor chamber 9. Heat can be transported to the radiation fins 313.
  • the three right-side substantially L-shaped tubular bodies 312 are Whereas the bending direction of the end portion is the right direction, the bending direction of the other end portion of the three left side three substantially L-shaped tubular bodies 312 is the left direction. That is, the bending direction of the other end of the tube body 312 having a substantially L shape in plan view located on the left side and the tube body 312 having a substantially L shape in plan view located on the right side are opposite.
  • a plurality of heat dissipating fins 313 for a tubular body are thermally connected to the other end of the substantially L-shaped tubular body 312 in plan view.
  • the heat dissipating fins 313 for the tubular body are arranged in parallel along the longitudinal direction of the other end of the substantially L-shaped tubular body 312 in plan view.
  • the tube heat radiation fin 313 includes a first tube heat radiation fin portion 313-1 and a second tube heat radiation fin portion 313-2.
  • the other end of the tube body 312 having a substantially L shape in plan view is disposed between the first tube heat dissipating fin portion 313-1 and the second tube heat dissipating fin portion 313-2.
  • the other end of the substantially L-shaped tube body 312 in plan view is in direct or indirect contact with the first tube heat dissipating fin portion 313-1 and the second tube heat dissipating fin portion 313-2.
  • the tube body 312 having a substantially L-shape in plan view forms the first tube heat dissipating fin portion 313-1 and the second tube heat dissipating fin portion 313-2, that is, the tube heat dissipating fin 313. And thermally connected.
  • the latent heat from the gas phase working fluid inside the substantially L-shaped tube body 312 in plan view is radiated by the heat dissipating fins 313 for the tube body thermally connected to the tube body 312 in plan view. Is further promoted, so that the heat radiation efficiency of the vapor chamber 9 can be further improved in the same manner as the vapor chamber 8 according to the eighth embodiment.
  • the end surface of one end portion of the substantially L-shaped tubular body in plan view is connected to the planar portion of the other plate-like body (surface portion of the vapor chamber).
  • the vapor chamber 9 ′ according to the tenth embodiment as shown in FIG. 15, one end portion of the tube body 312 having a substantially L-shape in plan view is formed on the side surface portion of the vapor chamber 9 ′. The end faces of are connected.
  • the gas-phase working fluid flows from the vapor flow path inside the container 240 (cavity) into the tube 312 having a substantially L shape in plan view communicating with the cavity.
  • the phase change of the working fluid to the liquid phase is further promoted, and the heat radiation efficiency of the vapor chamber 9 ′ can be improved.
  • the first block and the second block are both integrated with one plate-like body. Instead, one plate-like body is used instead. It may be a separate body.
  • the flat fin portion is provided in the first portion of one plate-like body. However, the flat fin portion is not provided depending on the use situation. May be.
  • the radiating fin member is provided on the other plate-like body.
  • the radiating fin member may not be provided.
  • a part of the container that is a predetermined distance away from the heat receiving part that is a part thermally connected to the heating element functions as a heat radiating part.
  • the vapor chamber of the present invention can exhibit excellent heat transport characteristics by reducing the flow resistance of the liquid-phase working fluid, and thus can be used in a wide range of fields.
  • electronic devices such as vehicles and personal computers It can be used for cooling the heating element mounted on the.
  • the vapor chamber of the present invention can be used in a wide range of fields because it can exhibit excellent heat transport characteristics by reducing the heat resistance of the heat receiving part and further preventing local temperature rise of the heat receiving part.
  • it can be used for cooling a heating element mounted on an electronic device such as a vehicle or a personal computer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

Chambre à vapeur pour laquelle la résistance aux fluides d'un fluide de travail à phase liquide est réduite, et qui présente d'excellentes performances de dissipation de chaleur, ce qui permet d'obtenir une excellente caractéristique de transfert de chaleur. Cette chambre à vapeur comporte : un récipient dans lequel une cavité est formée au moyen d'un corps de plaque relié thermiquement à un corps de production de chaleur et d'un autre corps de plaque opposé au corps de plaque ; des corps de tuyau qui sont reliés au récipient et dont un espace interne communique avec la cavité ; et un fluide de travail enfermé dans un espace s'étendant depuis la cavité jusqu'à l'intérieur des corps de tuyau.
PCT/JP2017/028974 2016-08-10 2017-08-09 Chambre à vapeur WO2018030478A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016158144 2016-08-10
JP2016158143 2016-08-10
JP2016-158144 2016-08-10
JP2016-158143 2016-08-10

Publications (1)

Publication Number Publication Date
WO2018030478A1 true WO2018030478A1 (fr) 2018-02-15

Family

ID=61162359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/028974 WO2018030478A1 (fr) 2016-08-10 2017-08-09 Chambre à vapeur

Country Status (2)

Country Link
TW (1) TW201812238A (fr)
WO (1) WO2018030478A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI801160B (zh) * 2021-03-23 2023-05-01 日商村田製作所股份有限公司 熱擴散裝置及電子機器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI807158B (zh) * 2020-01-20 2023-07-01 大陸商深圳興奇宏科技有限公司 熱虹吸散熱裝置之連通強化結構

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04198690A (ja) * 1990-11-29 1992-07-20 Furukawa Electric Co Ltd:The ヒートパイプとその製造方法
JPH10209355A (ja) * 1996-11-25 1998-08-07 Denso Corp 沸騰冷却装置
JPH10227585A (ja) * 1997-02-13 1998-08-25 Furukawa Electric Co Ltd:The ヒートスプレッダとそれを用いた冷却器
JP2003336976A (ja) * 2002-05-17 2003-11-28 Furukawa Electric Co Ltd:The ヒートシンクおよびその実装構造
US20050135062A1 (en) * 2003-12-23 2005-06-23 Kiley Richard F. Heat sink, assembly, and method of making
JP2007003034A (ja) * 2005-06-21 2007-01-11 Fujikura Ltd 冷却装置
JP2007317876A (ja) * 2006-05-25 2007-12-06 Fujitsu Ltd ヒートシンク
WO2011145618A1 (fr) * 2010-05-19 2011-11-24 日本電気株式会社 Dispositif de refroidissement à ébullition
US20170153066A1 (en) * 2015-12-01 2017-06-01 Asia Vital Components Co., Ltd. Heat dissipation device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04198690A (ja) * 1990-11-29 1992-07-20 Furukawa Electric Co Ltd:The ヒートパイプとその製造方法
JPH10209355A (ja) * 1996-11-25 1998-08-07 Denso Corp 沸騰冷却装置
JPH10227585A (ja) * 1997-02-13 1998-08-25 Furukawa Electric Co Ltd:The ヒートスプレッダとそれを用いた冷却器
JP2003336976A (ja) * 2002-05-17 2003-11-28 Furukawa Electric Co Ltd:The ヒートシンクおよびその実装構造
US20050135062A1 (en) * 2003-12-23 2005-06-23 Kiley Richard F. Heat sink, assembly, and method of making
JP2007003034A (ja) * 2005-06-21 2007-01-11 Fujikura Ltd 冷却装置
JP2007317876A (ja) * 2006-05-25 2007-12-06 Fujitsu Ltd ヒートシンク
WO2011145618A1 (fr) * 2010-05-19 2011-11-24 日本電気株式会社 Dispositif de refroidissement à ébullition
US20170153066A1 (en) * 2015-12-01 2017-06-01 Asia Vital Components Co., Ltd. Heat dissipation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI801160B (zh) * 2021-03-23 2023-05-01 日商村田製作所股份有限公司 熱擴散裝置及電子機器

Also Published As

Publication number Publication date
TW201812238A (zh) 2018-04-01

Similar Documents

Publication Publication Date Title
JP6623296B2 (ja) ベーパーチャンバ
TWI711798B (zh) 蒸氣腔室以及散熱裝置
JP6606267B1 (ja) ヒートシンク
JP6688936B2 (ja) ヒートシンク
US7540318B2 (en) Heat sink
US20200173731A1 (en) Heat sink
JP6688863B2 (ja) 冷却装置および冷却装置を用いた冷却システム
WO2019131814A1 (fr) Dissipateur thermique
EP3686539B1 (fr) Dissipateur thermique
US10247485B2 (en) Pipe member, heat pipe, and cooling device
TWI741592B (zh) 散熱裝置
JP6782326B2 (ja) ヒートシンク
US20190041138A1 (en) Joint assembly of vapor chambers
EP3686540B1 (fr) Dissipateur thermique
WO2018030478A1 (fr) Chambre à vapeur
JP2018123987A (ja) ベーパーチャンバ
US10760855B2 (en) Heat sink
US11369042B2 (en) Heat exchanger with integrated two-phase heat spreader
WO2020054752A1 (fr) Dispositif de refroidissement et système de refroidissement faisant appel audit dispositif
JP2006234267A (ja) 沸騰冷却装置
JP7269422B1 (ja) ヒートシンク
JP7450125B2 (ja) ヒートシンク
WO2018139656A1 (fr) Chambre à vapeur

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE