WO2017077619A1 - Structure de fixation de caloduc et procédé de fixation de caloduc - Google Patents

Structure de fixation de caloduc et procédé de fixation de caloduc Download PDF

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Publication number
WO2017077619A1
WO2017077619A1 PCT/JP2015/081152 JP2015081152W WO2017077619A1 WO 2017077619 A1 WO2017077619 A1 WO 2017077619A1 JP 2015081152 W JP2015081152 W JP 2015081152W WO 2017077619 A1 WO2017077619 A1 WO 2017077619A1
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WO
WIPO (PCT)
Prior art keywords
heat pipe
heat
lid member
receiving block
contact
Prior art date
Application number
PCT/JP2015/081152
Other languages
English (en)
Japanese (ja)
Inventor
敬大 片山
千佳 佐々木
将和 伊勢村
山田　裕
泰博 内村
雅人 渡邉
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
Priority to PCT/JP2015/081152 priority Critical patent/WO2017077619A1/fr
Publication of WO2017077619A1 publication Critical patent/WO2017077619A1/fr

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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
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • 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
    • 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
    • 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
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/20—Fastening; Joining with threaded elements

Definitions

  • the present invention relates to a heat pipe fixing structure and a heat pipe fixing method, and in particular, to a heat pipe fixing structure and a heat pipe fixing method in a heat sink for cooling a heating element such as a semiconductor element mounted on various electric / electronic devices.
  • a heating element such as a semiconductor element mounted on various electric / electronic devices.
  • a heat sink provided with heat radiation fins and heat pipes is often used.
  • the heat pipe can dissipate heat from the heat radiating fin to the outside by moving the heat of the electrical and electronic parts to be radiated to the heat radiating fin arranged in another place. It can be done.
  • a heat pipe is brought into close contact with a base plate (heat receiving block) made of a material having excellent thermal conductivity, and heat transmitted from the heat generating element to the base plate is efficiently transmitted to the heat pipe.
  • the cooling efficiency of the exothermic element can be increased. Therefore, in such a heat sink, in order to efficiently cool the exothermic element, it is required to make the base plate and the heat pipe as close as possible.
  • a heat pipe storage portion composed of a bottom surface portion that stores a heat receiving portion of a heat pipe thermally connected to the base plate, and a two wall surface portion.
  • a technique for bringing such a base plate and a heat pipe into close contact for example, conventionally, a heat pipe storage portion composed of a bottom surface portion that stores a heat receiving portion of a heat pipe thermally connected to the base plate, and a two wall surface portion.
  • a technique is disclosed in which two wall surfaces are deformed and brought into contact with each other so as to cover the heat pipe from the inner base, and the two wall surfaces deformed along the upper surface of the heat pipe are arranged in close contact with each other ( For example, see Patent Document 1.)
  • the present invention has been made in view of the above points, and the contact area between the heat pipe and the receiving recess of the heat receiving block and the contact area between the heat pipe and the lid member can always be made constant. It is an object of the present invention to provide a heat pipe fixing structure and a heat pipe fixing method capable of reliably reducing variation in heat conduction efficiency between products.
  • a heat pipe fixing structure includes a heat receiving block including an accommodation recess that accommodates the heat pipe, and a lid member that contacts the heat pipe accommodated in the accommodation recess,
  • the housing recess of the heat receiving block has a surface that contacts the heat pipe formed in the same shape as the outer peripheral surface of the heat pipe, and is between the heat receiving block and the lid member, or at least one of the heat receiving block or the lid member A space portion that does not contact the heat pipe is formed.
  • the heat pipe is deformed when the heat pipe is deformed.
  • the deformed portion can be escaped to the space, and the contact area between the heat pipe and the receiving recess of the heat receiving block can be made constant.
  • the present invention is characterized in that, in the configuration described above, the contact area between the housing recess of the heat receiving block and the heat pipe is constant. According to this configuration, since the contact area between the housing recess and the heat pipe of the heat receiving block is constant, the heat conduction efficiency between the heat pipe and the heat receiving block set in the design stage is always constant. It is possible to reliably reduce the variation in the heat conduction efficiency of each product.
  • the present invention is characterized in that, in the above configuration, the contact area between the heat pipe and the lid member is constant. According to this configuration, since the contact area between the heat pipe and the lid member is configured to be constant, the heat conduction efficiency between the heat pipe and the lid member set in the design stage can be always constant. It is possible to reliably reduce the variation in heat conduction efficiency of each product.
  • the present invention is the above configuration, wherein the lid member has a surface that is in close contact with the heat pipe formed in the same shape as the outer peripheral surface of the heat pipe, and the lid member and the heat pipe are in surface contact with each other. It is characterized by being.
  • the surface of the lid member that is in close contact with the heat pipe is formed in the same shape as the outer peripheral surface of the heat pipe, and the lid member and the heat pipe are brought into surface contact.
  • the present invention is the above configuration, wherein the surface of the heat pipe that contacts the lid member is formed in the same shape as the contact surface of the lid member, and the lid member and the heat pipe are in line contact or surface contact. It is characterized by being. According to this configuration, since the surface of the heat pipe that contacts the lid member is formed in the same shape as the contact surface of the lid member, the lid member and the heat pipe are brought into line contact or surface contact. When the member and the heat pipe are brought into line contact or surface contact, the heat conduction efficiency between the heat pipe, the heat receiving block and the lid member set in the design stage can always be constant, and the heat conduction efficiency of each product can be kept constant. Variation can be reliably reduced.
  • the present invention is characterized in that, in the above configuration, the lid member is formed in a flat plate shape, and the lid member and the heat pipe are in line contact or surface contact. According to this configuration, when the lid member and the heat pipe are brought into line contact or surface contact, the heat conduction efficiency between the heat pipe and the heat receiving block and the lid member set at the design stage can be always constant, It is possible to reliably reduce variation in heat conduction efficiency between products.
  • the present invention is the above configuration, wherein the lid member is formed in a flat plate shape, and the lid member has a pressing surface in which the surface in contact with the heat pipe is formed in the same shape as the outer peripheral surface of the heat pipe. A protrusion is formed, and the heat pipe and the pressing protrusion are in surface contact.
  • the direction of the pressure deformation of the heat pipe can be set to the direction toward the lower surface side of the housing recess, and the direction of the pressure deformation is regulated.
  • the adhesion between the housing recess and the heat pipe can be improved.
  • the heat conduction efficiency between the heat pipe, the heat receiving block, and the lid member set at the design stage can always be kept constant, and variations in the heat conduction efficiency of each product can be reliably reduced.
  • the present invention is characterized in that, in the above-mentioned configuration, the bottom surface of the accommodating recess is provided with a flat portion formed in a flat shape. According to this configuration, by providing the flat portion on the bottom surface of the housing recess, the adhesion between the heat pipe and the housing recess can be further improved, and the heat pipe, the heat receiving block and the lid set at the design stage can be further improved.
  • the heat conduction efficiency with the member can be made constant at all times, and variations in the heat conduction efficiency between products can be reliably reduced.
  • the present invention is characterized in that, in the above configuration, the lid member is fixed to the heat receiving block by caulking. According to this configuration, when the lid member is fixed to the heat receiving block by caulking, the heat conduction efficiency between the heat pipe, the heat receiving block, and the lid member set in the design stage can be always constant, Variations in heat conduction efficiency can be reliably reduced.
  • the present invention is characterized in that, in the above configuration, the lid member is fixed to the heat receiving block by a fastening member. According to this configuration, when the lid member is fixed to the heat receiving block by the fastening member, the heat conduction efficiency between the heat pipe, the heat receiving block, and the lid member set in the design stage can be always constant, and the product It is possible to reliably reduce the variation in the heat conduction efficiency of each.
  • the present invention is characterized in that, in the above-mentioned configuration, the lid member is formed longer than the length dimension of the housing recess of the heat receiving block. According to this configuration, since the length dimension of the lid member is formed longer than the length dimension of the housing recess of the heat receiving block, a large contact area between the lid member and the heat pipe can be ensured, Transmission efficiency can be improved.
  • the present invention is characterized in that, in the above configuration, a filler is applied to at least one of a contact surface between the heat receiving block and the heat pipe or a contact surface between the lid member and the heat pipe.
  • a filler is applied to at least one of a contact surface between the heat receiving block and the heat pipe or a contact surface between the lid member and the heat pipe.
  • the contact surface between the heat receiving block and the heat pipe or the lid member and the heat is applied to at least one of the contact surface between the heat receiving block and the heat pipe or the contact surface between the lid member and the heat pipe.
  • the adhesion of the contact surface with the pipe can be enhanced.
  • the heat pipe is accommodated in the accommodating recess of the heat receiving block, the lid member is brought into contact with the heat pipe accommodated in the accommodating recess, and the lid member is fixed.
  • the contact area between the heat receiving block and the heat pipe is made constant by letting the deformation of the heat pipe that sometimes occurs escape to the space.
  • the deformed portion of the heat pipe is allowed to escape into the space, so that the contact area between the heat pipe and the receiving recess of the heat receiving block and the heat pipe and the lid member
  • the contact area can be made constant at all times, and as a result, the heat conduction efficiency between the heat pipe, the heat receiving block and the lid member set in the design stage can be kept constant, and the heat conduction efficiency varies from product to product. Can be reliably reduced.
  • a space that does not contact the heat pipe is formed between the heat receiving block and the lid member, or at least one of the heat receiving block or the lid member, and the contact area between the housing recess of the heat receiving block and the heat pipe is constant. Therefore, when the heat pipe is deformed, the deformed part of the heat pipe can be released to the space, and the contact area between the heat pipe and the receiving recess of the heat receiving block can be always constant. As a result, the heat conduction efficiency between the heat pipe, the heat receiving block, and the lid member set in the design stage can always be kept constant, and variations in the heat conduction efficiency of each product can be reliably reduced.
  • FIG. 1 is an exploded perspective view showing a first embodiment of a heat pipe fixing structure according to the present invention.
  • FIG. 2 is a cross-sectional view of the heat receiving block portion showing the first embodiment of the heat pipe fixing structure according to the present invention with the lid member removed.
  • FIG. 3 is a perspective view of the heat receiving block portion showing the first embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 4 is a cross-sectional view of the heat receiving block portion showing the first embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 5 is a cross-sectional view of the heat receiving block portion in the caulked state showing the first embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 6 is a cross-sectional view of a heat receiving block portion showing a modification of the space portion in the first embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 7 is a sectional view of a heat receiving block portion showing a second embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 8 is a cross-sectional view of a heat receiving block portion showing a modification of the second embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 9 is a cross-sectional view of a heat receiving block portion showing a modification of the second embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 10 is a perspective view of the heat receiving block portion showing the third embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 11 is a perspective view showing a state in which the heat pipe is inserted into the heat receiving block showing the third embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 12 is a perspective view of the heat receiving block showing the third embodiment of the heat pipe fixing structure according to the present invention with the lid member inserted.
  • FIG. 13 is a perspective view of a heat receiving block showing a third embodiment of a heat pipe fixing structure according to the present invention in a state where a lid member is fixed.
  • FIG. 14 is a cross-sectional view of a heat receiving block portion showing a fourth embodiment of a heat pipe fixing structure according to the present invention.
  • FIG. 15 is a cross-sectional view showing a state in which the heat pipe is pressed and deformed by the pressing protrusion in the fourth embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 16 is sectional drawing of the heat receiving block part which shows 5th Embodiment of the fixing structure of the heat pipe which concerns on this invention.
  • FIG. 17 is a cross-sectional view showing a state in which the heat pipe is pressed and deformed by the pressing protrusion in the fifth embodiment of the heat pipe fixing structure according to the present invention.
  • FIG. 1 to 5 show a first embodiment of a heat pipe fixing structure according to the present invention
  • FIG. 1 is an exploded perspective view
  • FIG. 2 is a state in which a cover member of a heat receiving block portion is removed.
  • FIG. 3 is a perspective view of the heat receiving block portion
  • FIG. 4 is a cross-sectional view of the heat receiving block portion.
  • FIG. 5 is a cross-sectional view of the heat receiving block portion in a caulked state.
  • the fixing structure of the heat pipe in the present embodiment includes a heat receiving block 10 formed of a metal having excellent thermal conductivity, and the heat receiving block 10 has a central portion on the upper surface thereof in the longitudinal direction of the heat receiving block 10.
  • a housing recess 11 extending along the side is formed.
  • a predetermined part of the heat pipe 20 is accommodated in the accommodation recess 11, and the heat pipe 20 is, for example, a part accommodated in the accommodation recess 11 of the heat pipe 20 is a straight line in the present embodiment.
  • And is formed in a substantially U-shape that rises upward outside the heat receiving block 10.
  • the shape of the heat pipe 20 is not limited to this, For example, it can be formed in arbitrary shapes, such as linear form.
  • the shape of the bottom of the housing recess 11 is formed in accordance with the shape of the outer peripheral surface of the heat pipe 20.
  • the shape of the bottom of the housing recess 11 is the outer surface of the heat pipe 20. It has a semicircular shape that is the same shape as the shape, and is formed in a substantially U-shaped cross-sectional shape that continues substantially linearly from the bottom shape toward the upper surface of the housing recess 11. Further, the depth of the housing recess 11 is formed larger than the diameter of the heat pipe 20.
  • grooves 12 extending along the forming direction of the housing recess 11 of the heat receiving block 10 are formed on both sides of the housing recess 11 on the upper surface of the heat receiving block 10, respectively.
  • the caulking projections 13 are formed between both side edges of the groove 11 and the groove 12. As shown in FIG. 2, the caulking protrusion 13 may be formed in parallel to the upper inner wall of the housing recess 11 of the heat receiving block 10, or the upper inner wall is inclined inward. You may form as follows.
  • the fixing structure of the heat pipe 20 in the present embodiment includes a lid member 30 formed of a metal having excellent thermal conductivity.
  • the lid member 30 has a length dimension and a width dimension substantially the same as the opening dimension of the housing recess 11, and the lower surface of the lid member 30 has the same shape as the outer peripheral surface of the heat pipe 20.
  • notches 31 extending along the longitudinal direction of the lid member 30 are formed at the corners on both sides of the upper surface of the lid member 30, and when the caulking projections 13 are caulked as shown in FIG. The lid member 30 is fixed by engaging the caulking protrusion 13 with the notch 31.
  • a filler such as grease or adhesive is applied to the contact surface between the heat receiving block 10 and the heat pipe 20 and the contact surface between the lid member 30 and the heat pipe 20. It is configured as follows. By applying the filler as described above, the adhesion of the contact surface between the heat receiving block 10 and the heat pipe 20 or the contact surface between the lid member 30 and the heat pipe 20 can be improved.
  • the charging material may be applied to either the contact surface between the heat receiving block 10 and the heat pipe 20 or the contact surface between the lid member 30 and the heat pipe 20.
  • the cover member 30 is inserted in the accommodation recessed part 11, and the outer peripheral surface of the heat pipe 20 is made to contact the accommodation recessed part 11 and the lid member 30
  • the space 40 is formed between the heat pipe 20, the heat receiving block 10, and the lid member 30.
  • the example at the time of making the outer peripheral surface of the heat pipe 20 surface-contact with the accommodation recessed part 11 and the cover member 30 is shown, and the outer periphery of the heat pipe 20 is shown by the accommodation recessed part 11 and the lid member 30.
  • the contact area between the heat pipe 20, the housing recess 11 and the lid member 30 is set in advance to be a predetermined contact area.
  • the surface contact refers to a state where the surface is in contact with a surface having a predetermined width along the longitudinal direction of the heat pipe 20.
  • a circular shape and a similar curved surface are in contact in the longitudinal direction, or when a cylindrical shape and a flat shape are in contact, a part of the cylindrical shape is compressed and deformed. As a result, it may be partly flat and may be in contact with a flat plate in the longitudinal direction.
  • line contact means the state which is contacting in the long and thin area along the longitudinal direction of the heat pipe 20. As shown in FIG. For example, the case where a cylindrical thing and a flat thing are contacting in the longitudinal direction can be considered.
  • the cover member 30 while inserting the heat pipe 20 in the accommodation recessed part 11 of the heat receiving block 10, the cover member 30 is inserted in the accommodation recessed part 11, and the outer peripheral surface of the heat pipe 20 is accommodated in the accommodation recessed part 11 and the lid member 30.
  • the caulking protrusion 13 With the caulking device not shown, the caulking protrusion 13 is crimped while being brought into contact with the lid member 30 in a state where the caulking protrusion 13 is brought into contact with the notch 31 so that the lid member 30 is engaged. It is configured to be fixed.
  • the pressure applied to the caulking projection 13 is increased or decreased so that the heat pipe 20 is not deformed in principle. At this time, if too much pressure is applied to deform the caulking projections 13, pressure is applied to the lid member 30, so that an excessive pressure is applied to the heat pipe 20, and the heat pipe 20 may be deformed.
  • the space portion 40 since the space portion 40 is formed, when the heat pipe 20 is deformed, the deformed portion of the heat pipe 20 protrudes into the space portion 40 so that the deformation of the heat pipe 20 is released. It is configured. Therefore, in this embodiment, even when the heat pipe 20 is deformed, there is no change in the contact location between the housing recess 11 of the heat receiving block 10 and the lid member 30, and as a result, excessive pressure is applied during caulking. Even if the heat pipe 20 is deformed by the above, the contact area between the heat pipe 20 and the receiving recess 11 of the heat receiving block 10 and the contact area between the heat pipe 20 and the lid member 30 can be made constant at all times. ing.
  • the heat pipe 20 and the heat receiving block 10 and the lid member 30 are brought into surface contact with each other, and the contact areas are always constant. Since it is installed on the opposite side to the surface in contact with the cooling member, the contact area between the heat pipe 20 and the lid member 30 does not greatly contribute to the heat conduction performance. Therefore, it is important that at least the contact area between the heat pipe 20 and the heat receiving block 10 is always constant. However, if the contact area between the heat pipe 20 and the lid member 30 is constant, the heat conduction efficiency is more constant. It is possible to obtain the effect of.
  • the radiation fin 50 is attached to the both ends of the heat pipe 20 with which the heat pipe 20 was fixed to the heat receiving block 10.
  • the lid member 30 is inserted into the housing recess 11, and the outer circumferential surface of the heat pipe 20 is placed between the housing recess 11 and the lid member 30. Contact with.
  • the caulking projection 13 is engaged with the notch 31 to fix the lid member 30 by crimping the caulking projection 13 toward the lid member 30 by a caulking device (not shown).
  • the heat pipe 20 is deformed when the caulking protrusion 13 is caulked. Even in this case, the deformed portion of the heat pipe 20 protrudes into the space portion 40, and the deformation of the heat pipe 20 can be escaped.
  • the contact area between the heat pipe 20 and the receiving recess 11 of the heat receiving block 10, the heat pipe 20 and the lid The contact area with the member 30 can always be kept constant.
  • the space portion 40 is formed between the heat pipe 20, the heat receiving block 10, and the lid member 30, and the heat pipe 20 is deformed, the deformation portion of the heat pipe 20 is changed. Since it is made to escape to the space part 40, the contact area of the heat pipe 20 and the accommodation recessed part 11 of the heat receiving block 10 and the contact area of the heat pipe 20 and the cover member 30 can always be made constant. As a result, the heat conduction efficiency between the heat pipe 20 and the heat receiving block 10 and the lid member 30 set at the design stage can always be made constant, and variations in the heat conduction efficiency of each product can be reliably reduced. .
  • the space part 40 is formed between the heat pipe 20, the heat receiving block 10, and the cover member 30, it is not limited to this, For example, it shows in FIG. As described above, the two space portions 40 may be formed in the heat receiving block 10. In this case, one space 40 may be formed, or three or more may be formed. In addition, the space 40 may be formed in the lid member 30 instead of the heat receiving block 10, or the space 40 may be formed in both the heat receiving block 10 and the lid member 30. In this case, the number of space portions 40 can also be set arbitrarily.
  • the length dimension of the cover member 30 was formed identically with the length dimension of the heat receiving block 10, so that it may become long with respect to the length dimension of the heat receiving block 10, for example. You may make it form. By comprising in this way, the contact area of the cover member 30 and the heat pipe 20 can be ensured largely, and it is possible to improve heat transfer efficiency.
  • FIG. 7 shows a second embodiment of the present invention, in which the lid member 30 is formed in a flat plate shape, and the heat pipe and the lid member are brought into line contact.
  • the heat receiving block 10 having the caulking protrusion 13 is provided, and the heat pipe 20 is accommodated in the accommodating recess 11 of the heat receiving block 10.
  • the lid member 30 formed in a planar shape is inserted into the recess 11, and the caulking projection 13 is caulked in this state to fix the lid member 30 to the heat receiving block 10.
  • the lid member 30 With the lid member 30 fixed in this manner, the lid member 30 is in substantially line contact with the outer peripheral surface of the heat pipe 20, and the lid member 30 and the heat pipe 20 are in contact with each other. Although the area is reduced, the contact area between the lid member 30 and the heat pipe 20 can be made constant. In this embodiment, the space between the lid member 30 and the heat pipe 20 functions as the space portion 40, and the deformation of the heat pipe 20 can be released by the space portion 40. .
  • the deformed portion of the heat pipe 20 is allowed to escape to the space portion 40.
  • the contact area between the heat receiving block 10 and the housing recess 11 of the heat receiving block 10 and the contact area between the heat pipe 20 and the lid member 30 can always be made constant.
  • the heat conduction efficiency between the heat pipe 20 and the heat receiving block 10 and the lid member 30 set at the design stage can always be made constant, and variations in the heat conduction efficiency of each product can be reliably reduced. .
  • the heat pipe 20 and the lid member 30 are brought into line contact, the heat conduction efficiency between the heat pipe 20 and the lid member 30 is lowered.
  • the contact area between the heat pipe 20 and the lid member 30 is small, if the contact area between the heat pipe 20 and the lid member 30 is made constant, the effect of making the heat conduction efficiency more constant can be obtained. It can be obtained.
  • the lid member 30 is fixed by caulking, but it can also be fixed by, for example, a screw as a fastening member.
  • the depth of the housing recess 11 of the heat receiving block 10 is set so that the upper part of the heat pipe 20 receives heat while the heat pipe 20 is inserted into the housing recess 11 of the heat receiving block 10.
  • the cover member 30 is formed on the upper surface of the heat receiving block 10 with the heat pipe 20 inserted into the receiving recess 11 of the heat receiving block 10.
  • the screw 14 may be fixed by screwing the screw 14 into the heat receiving block 10.
  • the heat pipe 20 and the lid member 30 are in line contact with each other.
  • the upper surface of the heat pipe 20 is pressed and deformed by the lid member 30.
  • the pipe 20 and the lid member 30 may be brought into surface contact.
  • 10 to 13 show a third embodiment of the present invention, and show a structure in the case where a plurality of heat pipes 20 are fixed.
  • a plurality of receiving recesses 11 are formed side by side on the heat receiving block 10, and a plurality of rows of receiving recesses 11 arranged side by side are arranged side by side as necessary. It is configured. Further, a lid housing groove 15 extending in the column direction is formed at a substantially central portion of each housing recess 11 of the heat receiving block 10, and this lid housing groove 15 is formed so as to cross each housing recess 11. ing.
  • a screw hole 16 is formed in a portion between the receiving recesses 11 of the lid receiving groove 15, and a screw that is screwed into the screw hole 16 at a position corresponding to the screw hole 16 of the lid member 30.
  • a screw insertion hole 17 for inserting 14 is formed.
  • the depth dimension of the housing recess 11 of the heat receiving block 10 is the same as the heat pipe 20 inserted into the housing recess 11 of the heat receiving block 10.
  • the upper portion 20 is formed to have a depth dimension so as to be substantially flush with the upper surface of the lid receiving groove 15 of the heat receiving block 10.
  • the flat cover member 30 is inserted in the lid accommodation groove
  • the lid member 30 is configured to be fixed.
  • the heat pipe 20 and the lid member 30 are in line contact, but the contact area between the heat pipe 20 and the housing recess 11 of the heat receiving block 10 and the heat pipe 20 and the lid member 30 are The contact area can be kept constant at all times.
  • the deformed portion of the heat pipe 20 is allowed to escape to the space portion 40 as in the above embodiments.
  • the contact area between the heat receiving block 10 and the housing recess 11 and the contact area between the heat pipe 20 and the lid member 30 can be kept constant.
  • the heat conduction efficiency between the heat pipe 20 and the heat receiving block 10 and the lid member 30 set at the design stage can always be made constant, and variations in the heat conduction efficiency of each product can be reliably reduced. .
  • the depth dimension of the housing recess 11 of the heat receiving block 10 is the same as the example shown in FIG. 8, and the heat pipe 20 is inserted into the housing recess 11 of the heat receiving block 10.
  • the heat pipe 20 is formed to have a depth dimension such that the upper part of the heat pipe 20 is substantially flush with the upper surface of the heat receiving block 10.
  • a lid member 30 that is in contact with the upper surface of the heat receiving block is provided on the upper surface side of the heat receiving block as in FIG.
  • a pressing protrusion 32 that contacts the outer peripheral surface of the heat pipe 20 is formed at a position corresponding to the housing recess 11 on the lower surface side of the lid member 30.
  • the lower surface of the pressing protrusion 32 has the same shape as the outer peripheral surface of the heat pipe 20, and a space 40 is formed between both sides of the pressing protrusion 32 and the inner surface of the housing recess 11. It has become.
  • the lid member 30 is placed on the upper surface of the heat receiving block 10 with the heat pipe 20 inserted into the housing recess 11 of the heat receiving block 10 and fixed with screws (not shown) or the like.
  • the upper portion of the heat pipe 20 can be pressed and deformed by the pressing protrusion 32, and the heat pipe 20 and the pressing protrusion 32 of the lid member 30 can be brought into surface contact.
  • both side portions of the heat pipe 20 are pressed by the shoulder portions 33 formed at both ends of the pressing protrusion 32, so that the direction of the pressure deformation of the heat pipe 20 is set to the lower surface of the housing recess 11.
  • the direction toward the side can be set, and the direction of pressure deformation can be regulated to improve the adhesion between the housing recess 11 and the heat pipe 20.
  • the deformed portion of the heat pipe 20 is allowed to escape to the space portion 40 as in the above embodiments.
  • the contact area between the heat receiving block 10 and the housing recess 11 and the contact area between the heat pipe 20 and the lid member 30 can be kept constant.
  • the heat conduction efficiency between the heat pipe 20 and the heat receiving block 10 and the lid member 30 set at the design stage can always be made constant, and variations in the heat conduction efficiency of each product can be reliably reduced. .
  • 16 and 17 show a fifth embodiment of the present invention.
  • the depth dimension of the housing recess 11 of the heat receiving block 10 is the same as the example shown in FIG. 14, and the heat pipe 20 is inserted into the housing recess 11 of the heat receiving block 10.
  • the heat pipe 20 is formed to have a depth dimension such that the upper part of the heat pipe 20 is substantially flush with the upper surface of the heat receiving block 10.
  • a lid member 30 that is in contact with the upper surface of the heat receiving block is provided on the upper surface side of the heat receiving block as in FIG.
  • a pressing protrusion 32 that contacts the outer peripheral surface of the heat pipe 20 is formed at a position corresponding to the housing recess 11 on the lower surface side of the lid member 30.
  • the lower surface of the pressing protrusion 32 has the same shape as the outer peripheral surface of the heat pipe 20, and a space 40 is formed between both sides of the pressing protrusion 32 and the inner surface of the housing recess 11. It has become. Furthermore, in this embodiment, the flat part 18 formed in planar shape is formed in the bottom face of the accommodation recessed part 11. As shown in FIG.
  • the lid member 30 is placed on the upper surface of the heat receiving block 10 and fixed with screws or the like with the heat pipe 20 inserted into the receiving recess 11 of the heat receiving block 10.
  • the upper portion of the heat pipe 20 is pressed and deformed by the pressing protrusion 32, and the heat pipe 20 and the pressing protrusion 32 of the lid member 30 can be brought into surface contact.
  • both side portions of the heat pipe 20 are pressed by the shoulder portions formed at both ends of the pressing protrusion 32, so that the direction of the pressure deformation of the heat pipe 20 is changed.
  • the direction toward the lower surface side of the housing recess 11 can be set, and the adhesive deformation between the housing recess 11 and the heat pipe 20 can be improved by regulating the direction of pressure deformation.
  • the flat portion 18 is formed on the lower surface side of the housing recess 11, the adhesion between the lower surface side of the housing recess 11 and the heat pipe 20 that contributes particularly to heat conduction performance is further improved, and the heat of each product is further increased. Variations in conduction efficiency can be reduced.
  • the deformed portion of the heat pipe 20 is allowed to escape to the space portion 40 as in the above embodiments.
  • the contact area between the heat receiving block 10 and the housing recess 11 and the contact area between the heat pipe 20 and the lid member 30 can be kept constant.
  • the heat conduction efficiency between the heat pipe 20 and the heat receiving block 10 and the lid member 30 set at the design stage can always be made constant, and variations in the heat conduction efficiency of each product can be reliably reduced. .
  • the lid member 30 having a shape matching the outer peripheral surface shape of the heat pipe 20 is brought into contact with the heat pipe 20 or the flat lid member 30 is brought into contact with the heat pipe 20.
  • the shape of the outer peripheral surface of the heat pipe 20 may be formed so as to match the shape of the lower surface of the lid member 30. In this case, depending on the shape of the outer peripheral surface of the heat pipe 20, the lid member 30 and the heat pipe 20 may be brought into line contact or surface contact.
  • the present invention is not limited to the above embodiment, and various modifications can be made based on the gist of the present invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Sustainable Development (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

L'invention concerne une structure de fixation de caloduc telle que la zone de contact entre un caloduc et un creux de logement d'un bloc de réception de chaleur et la zone de contact entre le caloduc et un élément couvercle puissent être maintenues en permanence et, par conséquent, les variations de la conductivité thermique de chaque produit peuvent être réduites de manière fiable. Cette structure de fixation de caloduc est équipée des éléments suivants : le bloc de réception de chaleur (10) qui comporte le creux de logement (11) qui accueille le caloduc (20) ; et l'élément couvercle (30) qui est mis en contact étroit avec le caloduc (20) accueilli dans le creux de logement (11). Le creux de logement (11) du bloc de réception de chaleur (10) présente une surface en contact avec le caloduc (20), la surface ayant la même forme que la surface périphérique extérieure du caloduc (20). Un espace (40) n'étant pas en contact avec le caloduc (20) est formé entre le bloc de réception de chaleur (10) et l'élément couvercle (30) ou dans le bloc de réception de chaleur (10) et/ou l'élément couvercle (30). La structure de fixation de caloduc est configurée de sorte que la surface de contact entre le bloc de réception de chaleur (10) et le caloduc (20) soit maintenue.
PCT/JP2015/081152 2015-11-05 2015-11-05 Structure de fixation de caloduc et procédé de fixation de caloduc WO2017077619A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/081152 WO2017077619A1 (fr) 2015-11-05 2015-11-05 Structure de fixation de caloduc et procédé de fixation de caloduc

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PCT/JP2015/081152 WO2017077619A1 (fr) 2015-11-05 2015-11-05 Structure de fixation de caloduc et procédé de fixation de caloduc

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019012579A1 (fr) * 2017-07-10 2019-01-17 三菱電機株式会社 Dispositif de refroidissement et son procédé de fabrication
WO2019131834A1 (fr) 2017-12-28 2019-07-04 古河電気工業株式会社 Dispositif de refroidissement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000304476A (ja) * 1999-04-23 2000-11-02 Hitachi Ltd ヒートパイプ取り付け構造
JP3150877U (ja) * 2009-03-17 2009-06-04 水谷電機工業株式会社 ヒートパイプ式放熱器
JP2010203672A (ja) * 2009-03-03 2010-09-16 Yamari Sangyo Kk パイプヒータ装置及び該パイプヒータ装置の設置方法
US20130008629A1 (en) * 2011-07-05 2013-01-10 Chun-Ming Wu Thermal module and method of manufacturing same
JP3181915U (ja) * 2012-12-14 2013-02-28 水谷電機工業株式会社 放熱器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000304476A (ja) * 1999-04-23 2000-11-02 Hitachi Ltd ヒートパイプ取り付け構造
JP2010203672A (ja) * 2009-03-03 2010-09-16 Yamari Sangyo Kk パイプヒータ装置及び該パイプヒータ装置の設置方法
JP3150877U (ja) * 2009-03-17 2009-06-04 水谷電機工業株式会社 ヒートパイプ式放熱器
US20130008629A1 (en) * 2011-07-05 2013-01-10 Chun-Ming Wu Thermal module and method of manufacturing same
JP3181915U (ja) * 2012-12-14 2013-02-28 水谷電機工業株式会社 放熱器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019012579A1 (fr) * 2017-07-10 2019-01-17 三菱電機株式会社 Dispositif de refroidissement et son procédé de fabrication
JPWO2019012579A1 (ja) * 2017-07-10 2020-01-23 三菱電機株式会社 冷却装置及び冷却装置の製造方法
WO2019131834A1 (fr) 2017-12-28 2019-07-04 古河電気工業株式会社 Dispositif de refroidissement
TWI694233B (zh) * 2017-12-28 2020-05-21 日商古河電氣工業股份有限公司 冷卻裝置

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