WO2017077619A1 - Heat pipe fixing structure and heat pipe fixing method - Google Patents

Heat pipe fixing structure and heat pipe fixing method 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
French (fr)
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/en
Publication of WO2017077619A1 publication Critical patent/WO2017077619A1/en

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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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Abstract

Provided is a heat pipe fixing structure such that the area of contact between a heat pipe and a housing recess of a heat receiving block and the area of contact between the heat pipe and a lid member can be maintained at all times, and, as a result, the variations in thermal conductivity of each product can be reliably reduced. This heat pipe fixing structure is equipped with: the heat receiving block (10) which is provided with the housing recess (11) that houses the heat pipe (20); and the lid member (30) which is brought into close contact with the heat pipe (20) housed in the housing recess (11). The housing recess (11) of the heat receiving block (10) has a surface in contact with the heat pipe (20), the surface having the same shape as the outer peripheral surface of the heat pipe (20). A space (40) having no contact with the heat pipe (20) is formed between the heat receiving block (10) and the lid member (30) or in the heat receiving block (10) and/or the lid member (30). The heat pipe fixing structure is configured so that the area of contact between the heat receiving block (10) and the heat pipe (20) is maintained.

Description

ヒートパイプの固定構造およびヒートパイプの固定方法Heat pipe fixing structure and heat pipe fixing method
　本発明は、ヒートパイプの固定構造およびヒートパイプの固定方法に係り、特に、各種電気・電子機器に搭載される半導体素子などの発熱体冷却用ヒートシンクにおけるヒートパイプの固定構造およびヒートパイプの固定方法に関する。 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. About.
　従来から、各種電気・電子機器に搭載された半導体素子などの発熱性の素子を冷却するために、放熱フィンおよびヒートパイプを備えたヒートシンクが多く用いられている。このようなヒートパイプを備えたヒートシンクにおいては、ヒートパイプによって、放熱すべき電気・電子部品の熱を別の場所に配置された放熱フィンに移動させることにより、放熱フィンから外部に放熱することができるものである。 Conventionally, in order to cool a heat-generating 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. In a heat sink equipped with such a heat pipe, 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.
　このようなヒートシンクにおいては、一般に、熱伝導性に優れた材料からなるベースプレート（受熱ブロック）にヒートパイプを密着させ、発熱性素子からベースプレートに伝達される熱を効率よくヒートパイプに伝達することにより、発熱性素子の冷却効率を高めることができるものである。そのため、このようなヒートシンクでは、発熱性素子の冷却を効率よく行うため、ベースプレートとヒートパイプとをできるだけ密着させることが要求されている。 In such a heat sink, generally, 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.
　このようなベースプレートとヒートパイプとを密着させる技術として、例えば、従来、ベースプレートに、ヒートパイプの受熱部を熱的に接続して収納する底面部と、２つの壁面部からなるヒートパイプ収納部を設け、底面部と接続する壁面部の相対するそれぞれの内側の基部に、壁面部の長手方向に沿って、切り欠き部を形成し、ヒートパイプ収納部にヒートパイプを配置し、加圧によって、２つの壁面部をそれぞれ内側の基部からヒートパイプに被さるように変形して接触させ、ヒートパイプの上面に沿って変形された２つの壁面部を密着配置させるようにした技術が開示されている（例えば、特許文献１参照。）。 As 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. Provided, forming a notch portion along the longitudinal direction of the wall surface portion on the opposite inner base portion of the wall surface portion connected to the bottom surface portion, arranging the heat pipe in the heat pipe storage portion, and by pressurization, 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.)
特開２０１１－１６９５０６号公報JP 2011-169506 A
　しかしながら、前記特許文献１の発明においては、ヒートパイプの全面とベースプレートとを可能な限り接触させることにより、熱伝導性能を高めるものであるが、ヒートパイプの全面を接触させるには、ヒートパイプをある程度変形させる必要があり、このようにヒートパイプを変形させた場合、製品ごとにヒートパイプの変形状態にばらつきが生じるとともに、製品ごとに熱伝導性能にもばらつきが生じてしまい、設計通りの熱伝導特性を得ることができないという問題を有している。 However, in the invention of Patent Document 1, the heat conduction performance is improved by bringing the entire surface of the heat pipe and the base plate into contact with each other as much as possible. When the heat pipe is deformed to some extent, the deformation state of the heat pipe varies from product to product, and the heat conduction performance varies from product to product. There is a problem that the conductive characteristics cannot be obtained.
　本発明は、前記した点に鑑みてなされたものであり、ヒートパイプと受熱ブロックの収容凹部との接触面積およびヒートパイプと蓋部材との接触面積を常に一定にすることができ、その結果、製品ごとの熱伝導効率のばらつきを確実に低減させることができるヒートパイプの固定構造およびヒートパイプの固定方法を提供することを目的とするものである。 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.
　前記目的を達成するため本発明に係るヒートパイプの固定構造は、ヒートパイプを収容する収容凹部を備えた受熱ブロックと、前記収容凹部に収容された前記ヒートパイプに接触する蓋部材とを備え、前記受熱ブロックの収容凹部は、前記ヒートパイプに接触する面が前記ヒートパイプの外周面と同一形状に形成され、前記受熱ブロックおよび前記蓋部材の間、もしくは前記受熱ブロックまたは前記蓋部材の少なくとも一方に前記ヒートパイプに接触しない空間部が形成されていることを特徴とする。 In order to achieve the above object, a heat pipe fixing structure according to the present invention 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.
　この構成によれば、受熱ブロックおよび蓋部材の間、もしくは受熱ブロックまたは蓋部材の少なくとも一方にヒートパイプに接触しない空間部を形成するようにしているので、ヒートパイプが変形した場合に、ヒートパイプの変形箇所を空間部に逃がすことができ、ヒートパイプと受熱ブロックの収容凹部との接触面積を一定にすることができる。 According to this configuration, since the 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, 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.
　また、本発明は、前記構成において、前記受熱ブロックの収容凹部と前記ヒートパイプとの接触面積を一定となるように構成したことを特徴とする。この構成によれば、受熱ブロックの収容凹部とヒートパイプとの接触面積を一定となるように構成しているので、設計段階で設定されたヒートパイプと受熱ブロックとの熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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.
　また、本発明は、前記構成において、前記ヒートパイプと前記蓋部材との接触面積が一定となるように構成したことを特徴とする。この構成によれば、ヒートパイプと蓋部材との接触面積を一定となるように構成しているので、設計段階で設定されたヒートパイプと蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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.
　また、本発明は、前記構成において、前記蓋部材は、前記ヒートパイプに密接される面が前記ヒートパイプの外周面と同一形状に形成され、前記蓋部材と前記ヒートパイプとは面接触されていることを特徴とする。この構成によれば、蓋部材を、ヒートパイプに密接される面がヒートパイプの外周面と同一形状に形成され、蓋部材とヒートパイプとを面接触させるようにしているので、蓋部材とヒートパイプとを面接触させる場合に、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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. According to this configuration, 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. When the pipe is in surface contact, the heat transfer efficiency between the heat pipe, the heat receiving block, and the lid member set in the design stage can always be kept constant, and the variation in heat transfer efficiency between products can be reliably reduced. be able to.
　また、本発明は、前記構成において、前記ヒートパイプは、前記蓋部材に接触する面が前記蓋部材の接触面と同一形状に形成され、前記蓋部材と前記ヒートパイプとは線接触または面接触されていることを特徴とする。この構成によれば、ヒートパイプの蓋部材に接触する面を蓋部材の接触面と同一形状に形成することにより、蓋部材とヒートパイプとを線接触または面接触させるようにしているので、蓋部材とヒートパイプとを線接触または面接触させる場合に、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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.
　また、本発明は、前記構成において、前記蓋部材は、平板状に形成されており、前記蓋部材と前記ヒートパイプとは線接触または面接触されていることを特徴とする。この構成によれば、蓋部材とヒートパイプとを線接触または面接触させる場合に、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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.
　また、本発明は、前記構成において、前記蓋部材は、平板状に形成されており、前記蓋部材には、前記ヒートパイプに接する面が前記ヒートパイプの外周面と同一形状に形成された押さえ突起が形成され、前記ヒートパイプと前記押さえ突起とは面接触されていることを特徴とする。この構成によれば、押さえ突起によりヒートパイプの両側部分を押し付けることになるので、ヒートパイプの押圧変形の方向を収容凹部の下面側に向けた方向とすることができ、押圧変形の方向を規制して収容凹部とヒートパイプとの密着性を向上させることができる。その結果、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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. According to this configuration, since both sides of the heat pipe are pressed by the pressing protrusion, 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. Thus, the adhesion between the housing recess and the heat pipe can be improved. As a result, 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.
　また、本発明は、前記構成において、前記収容凹部の底面は、平面状に形成された平坦部を備えていることを特徴とする。この構成によれば、収容凹部の底面に平坦部を設けることにより、ヒートパイプと収容凹部との密着性をより向上させることができ、しかも、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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.
　また、本発明は、前記構成において、前記蓋部材は、かしめにより前記受熱ブロックに固定されていることを特徴とする。この構成によれば、蓋部材をかしめにより受熱ブロックに固定する場合に、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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.
　また、本発明は、前記構成において、前記蓋部材は、締結用部材により前記受熱ブロックに固定されていることを特徴とする。この構成によれば、蓋部材を締結用部材により受熱ブロックに固定する場合に、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 Further, 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.
　また、本発明は、前記構成において、前記蓋部材は、前記受熱ブロックの収容凹部の長さ寸法より長く形成されていることを特徴とする。この構成によれば、蓋部材の長さ寸法を受熱ブロックの収容凹部の長さ寸法より長く形成するようにしているので、蓋部材とヒートパイプとの接触面積を大きく確保することができ、熱伝達効率を向上させることができる。 Further, 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.
　また、本発明は、前記構成において、前記受熱ブロックと前記ヒートパイプの接触面または前記蓋部材と前記ヒートパイプとの接触面の少なくとも一方に、充填材を塗布したことを特徴とする。この構成によれば、受熱ブロックとヒートパイプの接触面または蓋部材とヒートパイプとの接触面の少なくとも一方に、充填材を塗布することにより、受熱ブロックとヒートパイプの接触面または蓋部材とヒートパイプとの接触面の密着性を高めることができる。 Further, 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. According to this configuration, 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.
　また、本発明に係るヒートパイプの固定方法は、受熱ブロックの収容凹部にヒートパイプを収容し、前記収容凹部に収容された前記ヒートパイプに蓋部材を接触させて固定し、前記蓋部材の固定時に生じる前記ヒートパイプの変形を空間部に逃がすことにより、前記受熱ブロックと前記ヒートパイプとの接触面積を一定となるようにしたことを特徴とする。 In the heat pipe fixing method according to the present invention, 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.
　この構成によれば、ヒートパイプが変形した場合に、ヒートパイプの変形箇所を空間部に逃がすようにしているので、ヒートパイプと受熱ブロックの収容凹部との接触面積およびヒートパイプと蓋部材との接触面積を常に一定にすることができ、その結果、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 According to this configuration, when the heat pipe is deformed, 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.
　本発明によれば、受熱ブロックおよび蓋部材の間、もしくは受熱ブロックまたは蓋部材の少なくとも一方にヒートパイプに接触しない空間部を形成するとともに、受熱ブロックの収容凹部とヒートパイプとの接触面積を一定となるようにしているので、ヒートパイプが変形した場合に、ヒートパイプの変形箇所を空間部に逃がすことができ、ヒートパイプと受熱ブロックの収容凹部との接触面積を常に一定にすることができ、その結果、設計段階で設定されたヒートパイプと受熱ブロックおよび蓋部材との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 According to the present invention, 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.
図１は、本発明に係るヒートパイプの固定構造の第１実施形態を示す分解斜視図である。FIG. 1 is an exploded perspective view showing a first embodiment of a heat pipe fixing structure according to the present invention. 図２は、本発明に係るヒートパイプの固定構造の第１実施形態を示す受熱ブロック部分の蓋部材を外した状態の断面図である。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. 図３は、本発明に係るヒートパイプの固定構造の第１実施形態を示す受熱ブロック部分の斜視図である。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. 図４は、本発明に係るヒートパイプの固定構造の第１実施形態を示す受熱ブロック部分の断面図である。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. 図５は、本発明に係るヒートパイプの固定構造の第１実施形態を示す受熱ブロック部分のかしめた状態の断面図である。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. 図６は、本発明に係るヒートパイプの固定構造の第１実施形態における空間部の変形例を示す受熱ブロック部分の断面図である。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. 図７は、本発明に係るヒートパイプの固定構造の第２実施形態を示す受熱ブロック部分の断面図である。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. 図８は、本発明に係るヒートパイプの固定構造の第２実施形態における変形例を示す受熱ブロック部分の断面図である。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. 図９は、本発明に係るヒートパイプの固定構造の第２実施形態における変形例を示す受熱ブロック部分の断面図である。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. 図１０は、本発明に係るヒートパイプの固定構造の第３実施形態を示す受熱ブロック部分の斜視図である。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. 図１１は、本発明に係るヒートパイプの固定構造の第３実施形態を示す受熱ブロックにヒートパイプを挿入した状態の斜視図である。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. 図１２は、本発明に係るヒートパイプの固定構造の第３実施形態を示す受熱ブロックに蓋部材を挿入した状態の斜視図である。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. 図１３は、本発明に係るヒートパイプの固定構造の第３実施形態を示す受熱ブロックに蓋部材を固定した状態の斜視図である。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. 図１４は、本発明に係るヒートパイプの固定構造の第４実施形態を示す受熱ブロック部分の断面図である。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. 図１５は、本発明に係るヒートパイプの固定構造の第４実施形態における押さえ突起によりヒートパイプが押圧変形した状態を示す断面図である。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. 図１６は、本発明に係るヒートパイプの固定構造の第５実施形態を示す受熱ブロック部分の断面図である。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. 図１７は、本発明に係るヒートパイプの固定構造の第５実施形態における押さえ突起によりヒートパイプが押圧変形した状態を示す断面図である。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.
　以下、本発明の実施形態を図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　図１から図５は、本発明に係るヒートパイプの固定構造の第１実施形態を示したものであり、図１は分解斜視図であり、図２は受熱ブロック部分の蓋部材を外した状態の断面図である。図３は受熱ブロック部分の斜視図であり、図４は受熱ブロック部分の断面図である。さらに、図５は受熱ブロック部分のかしめた状態の断面図である。 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, and FIG. 2 is a state in which a cover member of a heat receiving block portion is removed. FIG. FIG. 3 is a perspective view of the heat receiving block portion, and 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.
　本実施形態におけるヒートパイプの固定構造は、熱伝導性に優れた金属などにより形成された受熱ブロック１０を備えており、この受熱ブロック１０の上面ほぼ中央部分には、受熱ブロック１０の長手方向に沿って延在する収容凹部１１が形成されている。この収容凹部１１には、ヒートパイプ２０の所定の部位が収容されるものであり、ヒートパイプ２０は、本実施形態においては、例えば、ヒートパイプ２０の収容凹部１１に収容される部位は、直線状に形成されるとともに、受熱ブロック１０の外側において、上方に立ち上がるほぼＵ字状に形成されている。なお、ヒートパイプ２０の形状は、これに限定されるものではなく、例えば、直線状など任意の形状に形成することが可能である。 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. In addition, 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.
　また、受熱ブロック１０の収容凹部１１が形成された面と反対側の面、すなわち、受熱ブロック１０の底面には、冷却する対象である被冷却部材（図示せず）が接触されるように構成されている。また、この収容凹部１１の底部の形状は、ヒートパイプ２０の外周面の形状に合わせて形成されるものであり、本実施形態においては、収容凹部１１の底部形状がヒートパイプ２０の外周面の形状と同一形状とされた半円形状を有するとともに、この底部形状から収容凹部１１の上面に向けてほぼ直線状に連続する断面形状ほぼＵ字状に形成されている。また、収容凹部１１の深さ寸法は、ヒートパイプ２０の直径より大きく形成されている。 In addition, a member to be cooled (not shown) to be cooled is brought into contact with the surface of the heat receiving block 10 opposite to the surface where the housing recess 11 is formed, that is, the bottom surface of the heat receiving block 10. Has been. Further, 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. In the present embodiment, 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.
　また、受熱ブロック１０の上面であって収容凹部１１の両側部分には、受熱ブロック１０の収容凹部１１の形成方向に沿って延在する溝１２がそれぞれ形成されており、受熱ブロック１０の収容凹部１１の両側縁と溝１２との間に、かしめ用突起１３が形成されるように構成されている。なお、このかしめ用突起１３は、図２に示すように、受熱ブロック１０の収容凹部１１の上部内壁に対して、平行に形成するようにしてもよいし、上部内壁を内側に向けて傾斜するように形成してもよい。 Further, 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.
　また、本実施形態におけるヒートパイプ２０の固定構造は、熱伝導性に優れた金属などにより形成された蓋部材３０を備えている。蓋部材３０は、収容凹部１１の開口寸法とほぼ同様の長さ寸法および幅寸法を有しており、この蓋部材３０の下面は、ヒートパイプ２０の外周面と同一の形状を有している。また、蓋部材３０の上面両側角部には、蓋部材３０の長手方向に沿って延在する切欠き３１が形成されており、図５に示すように、かしめ用突起１３をかしめた際に、かしめ用突起１３を切欠き３１に係合させることにより、蓋部材３０を固定するように構成されている。 In addition, 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. . Further, 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.
　なお、本実施形態においては、受熱ブロック１０とヒートパイプ２０との接触面および蓋部材３０とヒートパイプ２０との接触面には、グリースまたは接着剤などの充填材（図示せず）を塗布するように構成されている。このように充填材を塗布することにより、受熱ブロック１０とヒートパイプ２０の接触面または蓋部材３０とヒートパイプ２０との接触面の密着性を高めることができるものである。この充電材は、受熱ブロック１０とヒートパイプ２０との接触面または蓋部材３０とヒートパイプ２０との接触面のいずれか一方に塗布するようにしてもよい。 In the present embodiment, a filler (not shown) 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.
　そして、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入するとともに、収容凹部１１に蓋部材３０を挿入して、ヒートパイプ２０の外周面を収容凹部１１と蓋部材３０とに接触させた状態で、ヒートパイプ２０と受熱ブロック１０と蓋部材３０との間に空間部４０が形成されるように構成されている。また、本実施形態においては、ヒートパイプ２０の外周面を収容凹部１１と蓋部材３０と面接触させた場合の例を示すものであり、ヒートパイプ２０の外周面を収容凹部１１と蓋部材３０とに接触させた場合に、このヒートパイプ２０と、収容凹部１１および蓋部材３０との接触面積は、あらかじめ所定の接触面積となるように設定されている。 And 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 made to contact the accommodation recessed part 11 and the lid member 30 Thus, the space 40 is formed between the heat pipe 20, the heat receiving block 10, and the lid member 30. Moreover, in this embodiment, 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.
　ここで、面接触とは、ヒートパイプ２０の長手方向に沿って、所定の幅をもった面で接触している状態をいう。例えば、円形状のものと、それと同様の曲面を持ったものが長手方向で接触しているような場合や、円筒状のものと平板状のものの接触において、円筒状のものの一部が圧縮変形されることにより一部平面状となり、平板状のものと長手方向で接しているような場合などが考えられる。また、線接触とは、ヒートパイプ２０の長手方向に沿って長細い面積で接触している状態をいう。例えば、円筒状のものと平板状のものが長手方向で接触しているような場合などが考えられる。 Here, 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. For example, when 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. Moreover, 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.
　そして、本実施形態においては、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入するとともに、収容凹部１１に蓋部材３０を挿入して、ヒートパイプ２０の外周面を収容凹部１１と蓋部材３０とに接触させた状態で、図示しないかしめ装置により、かしめ用突起１３を蓋部材３０の側に倒しながら、かしめることにより、かしめ用突起１３を切欠き３１に係合させて蓋部材３０を固定するように構成されている。 And in this embodiment, 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. 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.
　この場合において、かしめ装置によりかしめ用突起１３をかしめる際に、かしめ用突起１３に加える圧力を加減することにより、原則として、ヒートパイプ２０を変形させないように加工するようにしている。その際、かしめ用突起１３を変形させる圧力を掛けすぎると、蓋部材３０に圧力が加わることにより、ヒートパイプ２０に必要以上の圧力が加わってしまい、ヒートパイプ２０が変形することがある。 In this case, when the caulking projection 13 is caulked by the caulking device, 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.
　しかしながら、本実施形態においては、空間部４０が形成されているので、ヒートパイプ２０が変形した場合に、ヒートパイプ２０の変形した箇所が空間部４０にはみ出して、ヒートパイプ２０の変形を逃がすように構成されている。そのため、本実施形態においては、ヒートパイプ２０が変形した場合でも、受熱ブロック１０の収容凹部１１と蓋部材３０との接触箇所には変化はなく、その結果、かしめ加工の際に、過剰な圧力によりヒートパイプ２０が変形したとしても、ヒートパイプ２０と受熱ブロック１０の収容凹部１１との接触面積およびヒートパイプ２０と蓋部材３０との接触面積は、常に一定にすることができるように構成されている。 However, in the present embodiment, 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.
　なお、本実施形態においては、ヒートパイプ２０と受熱ブロック１０および蓋部材３０とを面接触させるとともに、各接触面積を常に一定にするようにしているが、蓋部材３０は、受熱ブロック１０の被冷却部材と接触する面と反対側に設置されるものであるため、ヒートパイプ２０と蓋部材３０との接触面積は、熱伝導性能には大きくは寄与しないものである。そのため、少なくとも、ヒートパイプ２０と受熱ブロック１０との接触面積を常に一定にすることが重要であるが、ヒートパイプ２０と蓋部材３０との接触面積を一定にすれば、より熱伝導効率を一定にする効果を得ることができるものである。 In this embodiment, 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.
　そして、図１に示すように、受熱ブロック１０にヒートパイプ２０が固定されたヒートパイプ２０の両端部には、放熱フィン５０が取付けられている。 And as shown in FIG. 1, 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.
　次に、本発明に係るヒートパイプ２０の固定方法について説明する。
　本実施形態においては、まず、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した後、収容凹部１１に蓋部材３０を挿入して、ヒートパイプ２０の外周面を収容凹部１１と蓋部材３０とに接触させる。この状態で、図示しないかしめ装置により、かしめ用突起１３を蓋部材３０の側に倒しながら、かしめることにより、かしめ用突起１３を切欠き３１に係合させて蓋部材３０を固定する。 Next, a method for fixing the heat pipe 20 according to the present invention will be described.
In the present embodiment, first, after the heat pipe 20 is inserted into the housing recess 11 of 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. In this state, 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).
　この場合に、ヒートパイプ２０と受熱ブロック１０の収容凹部１１と蓋部材３０との間に、空間部４０が形成されているので、かしめ用突起１３をかしめる際に、ヒートパイプ２０が変形した場合でも、ヒートパイプ２０の変形した箇所が空間部４０にはみ出して、ヒートパイプ２０の変形を逃がすことができ、ヒートパイプ２０と受熱ブロック１０の収容凹部１１との接触面積およびヒートパイプ２０と蓋部材３０との接触面積は、常に一定に保持することができるものである。 In this case, since the space 40 is formed between the heat pipe 20 and the housing recess 11 of the heat receiving block 10 and the lid member 30, 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.
　以上述べたように、本実施形態においては、ヒートパイプ２０と受熱ブロック１０と蓋部材３０との間に空間部４０を形成し、ヒートパイプ２０が変形した場合に、ヒートパイプ２０の変形箇所を空間部４０に逃がすようにしているので、ヒートパイプ２０と受熱ブロック１０の収容凹部１１との接触面積およびヒートパイプ２０と蓋部材３０との接触面積を常に一定にすることができる。その結果、設計段階で設定されたヒートパイプ２０と受熱ブロック１０および蓋部材３０との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 As described above, in this embodiment, when 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. .
　なお、前記実施形態においては、ヒートパイプ２０と受熱ブロック１０と蓋部材３０との間に空間部４０を形成するようにしているが、これに限定されるものではなく、例えば、図６に示すように、受熱ブロック１０に２つの空間部４０を形成するようにしてもよい。この場合に、１つの空間部４０を形成するようにしてもよいし、３つ以上形成するようにしてもよい。また、受熱ブロック１０ではなく、蓋部材３０に空間部４０を形成するようにしてもよいし、受熱ブロック１０および蓋部材３０の両方に空間部４０を形成するようにしてもよい。この場合に、空間部４０の数も、任意に設定することができる。 In addition, in the said embodiment, although 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.
　また、前記実施形態においては、蓋部材３０の長さ寸法を受熱ブロック１０の長さ寸法と同一に形成するようにしたが、例えば、受熱ブロック１０の長さ寸法に対して、長くなるように形成するようにしてもよい。このように構成することにより、蓋部材３０とヒートパイプ２０との接触面積を大きく確保することができ、熱伝達効率を向上させることが可能である。 Moreover, in the said embodiment, although 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.
　次に、本発明の第２実施形態について説明する。
　図７は本発明の第２実施形態を示したものであり、蓋部材３０を平板状に形成し、ヒートパイプと蓋部材とを線接触させるようにしたものである。 Next, a second embodiment of the present invention will be described.
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.
　本実施形態においては、前記第１実施形態と同様に、かしめ用突起１３が形成された受熱ブロック１０を備えており、この受熱ブロック１０の収容凹部１１にヒートパイプ２０を収容した状態で、収容凹部１１に平面状に形成された蓋部材３０を挿入し、この状態で、かしめ用突起１３をかしめることにより、蓋部材３０を受熱ブロック１０に固定するように構成されている。 In the present embodiment, similarly to the first embodiment, 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.
　本実施形態においては、このように蓋部材３０を固定した状態で、蓋部材３０はヒートパイプ２０の外周面に対してほぼ線接触となるものであり、蓋部材３０とヒートパイプ２０との接触面積は低減するものの、蓋部材３０とヒートパイプ２０との接触面積を一定にすることができるものである。なお、本実施形態においては、蓋部材３０とヒートパイプ２０との間の空間が空間部４０として機能するものであり、ヒートパイプ２０の変形を空間部４０により逃がすことができる構成となっている。 In the present embodiment, 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. .
　以上述べたように、本実施形態においても、前記第１実施形態と同様に、ヒートパイプ２０が変形した場合に、ヒートパイプ２０の変形箇所を空間部４０に逃がすようにしているので、ヒートパイプ２０と受熱ブロック１０の収容凹部１１との接触面積およびヒートパイプ２０と蓋部材３０との接触面積を常に一定にすることができる。その結果、設計段階で設定されたヒートパイプ２０と受熱ブロック１０および蓋部材３０との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 As described above, also in the present embodiment, as in the first embodiment, when the heat pipe 20 is deformed, 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. 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. .
　なお、本実施形態においては、ヒートパイプ２０と蓋部材３０とを線接触させるようにしているため、ヒートパイプ２０と蓋部材３０との熱伝導効率は低くなってしまう。しかしながら、前述のように、ヒートパイプ２０と蓋部材３０との接触面積が少ない場合でも、ヒートパイプ２０と蓋部材３０との接触面積を一定にすれば、より熱伝導効率を一定にする効果を得ることができるものである。 In the present embodiment, since 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. However, as described above, even when 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.
　また、本実施形態においては、かしめにより蓋部材３０を固定するようにしているが、例えば、締結用部材としてのねじにより固定することも可能である。この場合は、例えば、図８に示すように、受熱ブロック１０の収容凹部１１の深さ寸法を、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した状態で、ヒートパイプ２０の上部が受熱ブロック１０の上面とほぼ面一になるような深さ寸法に形成するものであり、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した状態で、蓋部材３０を受熱ブロック１０の上面に載置して、ねじ１４を受熱ブロック１０に螺合させることにより、固定するようにすればよい。なお、締結用部材としては、ねじの他、ピンやリベットなどを適用するようにしてもよい。 In the present embodiment, the lid member 30 is fixed by caulking, but it can also be fixed by, for example, a screw as a fastening member. In this case, for example, as shown in FIG. 8, 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. In addition, as a fastening member, you may make it apply a pin, a rivet, etc. other than a screw.
　また、本実施形態においては、ヒートパイプ２０と蓋部材３０とを線接触させるようにしているが、図９に示すように、ヒートパイプ２０の上面を蓋部材３０により押圧変形させることにより、ヒートパイプ２０と蓋部材３０とを面接触させるようにしてもよい。 Further, in the present embodiment, the heat pipe 20 and the lid member 30 are in line contact with each other. However, as shown in FIG. 9, 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.
　次に、本発明の第３実施形態について説明する。
　図１０から図１３は本発明の第３実施形態を示したものであり、複数のヒートパイプ２０を固定する場合の構造を示したものである。 Next, a third embodiment of the present invention will be described.
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.
　本実施形態においては、受熱ブロック１０に、複数の収容凹部１１を並べて形成するようにしたものであり、この複数並べて配置された収容凹部１１の列を、必要に応じて複数列並べて形成するように構成されている。また、受熱ブロック１０の各収容凹部１１のほぼ中央部分には、列方向に延在する蓋収容溝１５が形成されており、この蓋収容溝１５は、各収容凹部１１を横切るように形成されている。また、蓋収容溝１５の各収容凹部１１の間部分には、ねじ穴１６が形成されているとともに、蓋部材３０のねじ穴１６に対応する位置には、ねじ穴１６に螺合されるねじ１４を挿入するためのねじ挿入孔１７が形成されている。 In the present embodiment, 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.
　また、本実施形態においては、図８に示した例と同様に、受熱ブロック１０の収容凹部１１の深さ寸法を、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した状態で、ヒートパイプ２０の上部が受熱ブロック１０の蓋収容溝１５の上面とほぼ面一になるような深さ寸法に形成されている。そして、図１１に示すように、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した状態で、図１２に示すように、蓋部材３０を受熱ブロック１０の蓋収容溝１５に挿入することにより、蓋部材３０とヒートパイプ２０とを線接触させる構造となっている。 Further, in the present embodiment, as in the example shown in FIG. 8, 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. Then, as shown in FIG. 11, with the heat pipe 20 inserted into the housing recess 11 of the heat receiving block 10, the lid member 30 is inserted into the lid housing groove 15 of the heat receiving block 10 as shown in FIG. 12. The lid member 30 and the heat pipe 20 are in line contact with each other.
　そして、各収容凹部１１にそれぞれヒートパイプ２０を収容した状態で、平板状の蓋部材３０を蓋収容溝１５に挿入させ、図１３に示すように、各ねじ穴１６にねじ１４を螺合させることにより、蓋部材３０を固定するように構成されている。この場合、前述のように、ヒートパイプ２０と蓋部材３０とは線接触になるものであるが、ヒートパイプ２０と受熱ブロック１０の収容凹部１１との接触面積およびヒートパイプ２０と蓋部材３０との接触面積を常に一定に保持することができるものである。 And in the state which accommodated each heat sink 20 in each accommodation recessed part 11, the flat cover member 30 is inserted in the lid accommodation groove | channel 15, and the screw 14 is screwed in each screw hole 16, as shown in FIG. Thus, the lid member 30 is configured to be fixed. In this case, as described above, 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.
　以上述べたように、本実施形態においても、前記各実施形態と同様に、ヒートパイプ２０が変形した場合に、ヒートパイプ２０の変形箇所を空間部４０に逃がすようにしているので、ヒートパイプ２０と受熱ブロック１０の収容凹部１１との接触面積およびヒートパイプ２０と蓋部材３０との接触面積を常に一定にすることができる。その結果、設計段階で設定されたヒートパイプ２０と受熱ブロック１０および蓋部材３０との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 As described above, also in the present embodiment, when the heat pipe 20 is deformed, 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. 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. .
　さらに、本実施形態においては、１つの蓋部材３０により、複数のヒートパイプ２０を同時に固定することができるので、作業効率を著しく高めることができる。 Furthermore, in the present embodiment, since a plurality of heat pipes 20 can be fixed simultaneously by one lid member 30, work efficiency can be significantly increased.
　次に、本発明の第４実施形態について説明する。
　図１４および図１５は本発明の第４実施形態を示したものである。 Next, a fourth embodiment of the present invention will be described.
14 and 15 show a fourth embodiment of the present invention.
　図１４に示すように、本実施形態においては、図８に示した例と同様に、受熱ブロック１０の収容凹部１１の深さ寸法を、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した状態で、ヒートパイプ２０の上部が受熱ブロック１０の上面とほぼ面一になるような深さ寸法に形成するものである。また、受熱ブロックの上面側には、図８と同様に受熱ブロックの上面に当接される蓋部材３０が設けられている。
　本実施形態においては、蓋部材３０の下面側の収容凹部１１に対応する位置には、ヒートパイプ２０の外周面に当接する押さえ突起３２が形成されている。この押さえ突起３２の下面は、ヒートパイプ２０の外周面と同一の形状を有しており、押さえ突起３２の両側と収容凹部１１の内側面との間には、空間部４０が形成されるようになっている。 As shown in FIG. 14, in this embodiment, 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. In this state, 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. Further, 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.
In the present embodiment, 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.
　本実施形態においては、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した状態で、蓋部材３０を受熱ブロック１０の上面に載置して、ねじ（図示せず）などで固定することにより、図１５に示すように、ヒートパイプ２０の上部を押さえ突起３２により押圧変形させて、ヒートパイプ２０と蓋部材３０の押さえ突起３２とを面接触させることができるものである。
　この場合に、本実施形態においては、押さえ突起３２の両端に形成される肩部３３によりヒートパイプ２０の両側部分を押し付けることになるので、ヒートパイプ２０の押圧変形の方向を収容凹部１１の下面側に向けた方向とすることができ、押圧変形の方向を規制して収容凹部１１とヒートパイプ２０との密着性を向上させることができる。 In the present embodiment, 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. As shown in FIG. 15, 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.
In this case, in this embodiment, 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.
　以上述べたように、本実施形態においても、前記各実施形態と同様に、ヒートパイプ２０が変形した場合に、ヒートパイプ２０の変形箇所を空間部４０に逃がすようにしているので、ヒートパイプ２０と受熱ブロック１０の収容凹部１１との接触面積およびヒートパイプ２０と蓋部材３０との接触面積を常に一定にすることができる。その結果、設計段階で設定されたヒートパイプ２０と受熱ブロック１０および蓋部材３０との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 As described above, also in the present embodiment, when the heat pipe 20 is deformed, 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. 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. .
　次に、本発明の第５実施形態について説明する。
　図１６および図１７は本発明の第５実施形態を示したものである。 Next, a fifth embodiment of the present invention will be described.
16 and 17 show a fifth embodiment of the present invention.
　図１６に示すように、本実施形態においては、図１４に示した例と同様に、受熱ブロック１０の収容凹部１１の深さ寸法を、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した状態で、ヒートパイプ２０の上部が受熱ブロック１０の上面とほぼ面一になるような深さ寸法に形成するものである。また、受熱ブロックの上面側には、図１４と同様に受熱ブロックの上面に当接される蓋部材３０が設けられている。
　また、本実施形態においても、蓋部材３０の下面側の収容凹部１１に対応する位置には、ヒートパイプ２０の外周面に当接する押さえ突起３２が形成されている。この押さえ突起３２の下面は、ヒートパイプ２０の外周面と同一の形状を有しており、押さえ突起３２の両側と収容凹部１１の内側面との間には、空間部４０が形成されるようになっている。
　さらに、本実施形態においては、収容凹部１１の底面には、平面状に形成してなる平坦部１８が形成されている。 As shown in FIG. 16, in this embodiment, 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. In this state, 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. Further, 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.
Also in the present embodiment, 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.
　本実施形態においても前記第４実施形態と同様に、受熱ブロック１０の収容凹部１１にヒートパイプ２０を挿入した状態で、蓋部材３０を受熱ブロック１０の上面に載置して、ねじなどで固定することにより、図１７に示すように、ヒートパイプ２０の上部を押さえ突起３２により押圧変形させて、ヒートパイプ２０と蓋部材３０の押さえ突起３２とを面接触させることができるものである。
　また、本実施形態においても前記第４実施形態と同様に、押さえ突起３２の両端に形成される肩部によりヒートパイプ２０の両側部分を押し付けることになるので、ヒートパイプ２０の押圧変形の方向を収容凹部１１の下面側に向けた方向とすることができ、押圧変形の方向を規制して収容凹部１１とヒートパイプ２０との密着性を向上させることができる。特に、収容凹部１１の下面側に平坦部１８を形成しているので、特に熱伝導性能に寄与する収容凹部１１の下面側とヒートパイプ２０との密着性がより向上し、より製品ごとの熱伝導効率のばらつきを低減することができる。 Also in this embodiment, in the same manner as in the fourth embodiment, 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. By doing so, as shown in FIG. 17, 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.
Also in the present embodiment, as in the fourth embodiment, 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. In particular, since 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.
　以上述べたように、本実施形態においても、前記各実施形態と同様に、ヒートパイプ２０が変形した場合に、ヒートパイプ２０の変形箇所を空間部４０に逃がすようにしているので、ヒートパイプ２０と受熱ブロック１０の収容凹部１１との接触面積およびヒートパイプ２０と蓋部材３０との接触面積を常に一定にすることができる。その結果、設計段階で設定されたヒートパイプ２０と受熱ブロック１０および蓋部材３０との熱伝導効率を常に一定にすることができ、製品ごとの熱伝導効率のばらつきを確実に低減させることができる。 As described above, also in the present embodiment, when the heat pipe 20 is deformed, 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. 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. .
　なお、前記各実施形態においては、ヒートパイプ２０の外周面形状に合わせた形状の蓋部材３０をヒートパイプ２０に接触させるか、平板状の蓋部材３０をヒートパイプ２０に接触させるようにしているが、蓋部材３０の下面の形状に合うように、ヒートパイプ２０の外周面の形状を形成するようにしてもよい。この場合に、ヒートパイプ２０の外周面の形状に応じて、蓋部材３０とヒートパイプ２０とを線接触させてもよいし、面接触させてもよい。 In each of the above embodiments, 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. However, 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.
　また、本発明は前記実施形態に限定されるものではなく、本発明の趣旨に基づいて種々の変形が可能である。 Further, the present invention is not limited to the above embodiment, and various modifications can be made based on the gist of the present invention.
　１０　受熱ブロック
　１１　収容凹部
　１２　溝
　１３　かしめ用突起
　１４　ねじ
　１５　蓋収容溝
　１６　ねじ穴
　１７　ねじ挿入孔
　１８　平坦部
　２０　ヒートパイプ
　３０　蓋部材
　３１　切欠き
　３２　押さえ突起
　４０　空間部
　５０　放熱フィン DESCRIPTION OF SYMBOLS 10 Heat receiving block 11 Accommodation recessed part 12 Groove 13 Caulking protrusion 14 Screw 15 Cover receiving groove 16 Screw hole 17 Screw insertion hole 18 Flat part 20 Heat pipe 30 Cover member 31 Notch 32 Holding protrusion 40 Space part 50 Radiation fin

Claims (13)

  1. 　ヒートパイプを収容する収容凹部を備えた受熱ブロックと、前記収容凹部に収容された前記ヒートパイプに接触する蓋部材とを備え、
    　前記受熱ブロックの収容凹部は、前記ヒートパイプに接触する面が前記ヒートパイプの外周面と同一形状に形成され、前記受熱ブロックおよび前記蓋部材の間、もしくは前記受熱ブロックまたは前記蓋部材の少なくとも一方に前記ヒートパイプに接触しない空間部が形成されていることを特徴とするヒートパイプの固定構造。     A heat receiving block having a housing recess for housing a heat pipe, and a lid member that contacts the heat pipe housed in the housing 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 The heat pipe fixing structure is characterized in that a space portion that does not contact the heat pipe is formed.
  2. 　前記受熱ブロックの収容凹部と前記ヒートパイプとの接触面積を一定となるように構成したことを特徴とする請求項１に記載のヒートパイプの固定構造。 The heat pipe fixing structure according to claim 1, wherein a contact area between the housing recess of the heat receiving block and the heat pipe is constant.
  3. 　前記ヒートパイプと前記蓋部材との接触面積が一定となるように構成したことを特徴とする請求項１または請求項２に記載のヒートパイプの固定構造。 3. The heat pipe fixing structure according to claim 1, wherein a contact area between the heat pipe and the lid member is constant.
  4. 　前記蓋部材は、前記ヒートパイプに接する面が前記ヒートパイプの外周面と同一形状に形成され、前記蓋部材と前記ヒートパイプとは面接触されていることを特徴とする請求項１から請求項３のいずれか一項に記載のヒートパイプの固定構造。 The surface of the lid member in 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 in surface contact with each other. The heat pipe fixing structure according to claim 3.
  5. 　前記ヒートパイプは、前記蓋部材に接触する面が前記蓋部材の接触面と同一形状に形成され、前記蓋部材と前記ヒートパイプとは線接触または面接触されていることを特徴とする請求項１から請求項３のいずれか一項に記載のヒートパイプの固定構造。 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. The heat pipe fixing structure according to any one of claims 1 to 3.
  6. 　前記蓋部材は、平板状に形成されており、前記蓋部材と前記ヒートパイプとは線接触または面接触されていることを特徴とする請求項１から請求項３のいずれか一項に記載のヒートパイプの固定構造。 The said cover member is formed in flat form, The said cover member and the said heat pipe are the line contact or the surface contact, The Claim 1 characterized by the above-mentioned. Heat pipe fixing structure.
  7. 　前記蓋部材は、平板状に形成されており、前記蓋部材には、前記ヒートパイプに接する面が前記ヒートパイプの外周面と同一形状に形成された押さえ突起が形成され、前記ヒートパイプと前記押さえ突起とは面接触されていることを特徴とする請求項１から請求項３のいずれか一項に記載のヒートパイプの固定構造。 The lid member is formed in a flat plate shape, and the lid member is formed with a pressing protrusion whose surface contacting the heat pipe is formed in the same shape as the outer peripheral surface of the heat pipe. The heat pipe fixing structure according to any one of claims 1 to 3, wherein the pressing protrusion is in surface contact.
  8. 　前記収容凹部の底面は、平面状に形成された平坦部を備えていることを特徴とする請求項１から請求項３および請求項７のいずれか一項に記載のヒートパイプの固定構造。 The heat pipe fixing structure according to any one of claims 1 to 3 and claim 7, wherein a bottom surface of the accommodating recess includes a flat portion formed in a flat shape.
  9. 　前記蓋部材は、かしめにより前記受熱ブロックに固定されていることを特徴とする請求項１から請求項８のいずれか一項に記載のヒートパイプの固定構造。 The heat pipe fixing structure according to any one of claims 1 to 8, wherein the lid member is fixed to the heat receiving block by caulking.
  10. 　前記蓋部材は、締結用部材により前記受熱ブロックに固定されていることを特徴とする請求項１から請求項８のいずれか一項に記載のヒートパイプの固定構造。 The heat pipe fixing structure according to any one of claims 1 to 8, wherein the lid member is fixed to the heat receiving block by a fastening member.
  11. 　前記蓋部材は、前記受熱ブロックの収容凹部の長さ寸法より長く形成されていることを特徴とする請求項１から請求項１０のいずれか一項に記載のヒートパイプの固定構造。 The heat pipe fixing structure according to any one of claims 1 to 10, wherein the lid member is formed to be longer than a length dimension of an accommodation recess of the heat receiving block.
  12. 　前記受熱ブロックと前記ヒートパイプの接触面または前記蓋部材と前記ヒートパイプの接触面の少なくとも一方に、充填材を塗布したことを特徴とする請求項１から請求項１１のいずれか一項に記載のヒートパイプの固定構造。 12. The filler according to claim 1, wherein 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. Heat pipe fixing structure.
  13. 　受熱ブロックの収容凹部にヒートパイプを収容し、前記収容凹部に収容された前記ヒートパイプに蓋部材を接触させて固定し、前記蓋部材の固定時に生じる前記ヒートパイプの変形を空間部に逃がすことにより、前記受熱ブロックと前記ヒートパイプとの接触面積を一定となるようにしたことを特徴とするヒートパイプの固定方法。 A heat pipe is accommodated in the accommodating recess of the heat receiving block, a lid member is brought into contact with and fixed to the heat pipe accommodated in the accommodating recess, and the deformation of the heat pipe that occurs when the lid member is fixed is released to the space portion. Thus, the contact area between the heat receiving block and the heat pipe is made constant.
PCT/JP2015/081152 2015-11-05 2015-11-05 Heat pipe fixing structure and heat pipe fixing method WO2017077619A1 (en)

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WO2019012579A1 (en) * 2017-07-10 2019-01-17 三菱電機株式会社 Cooling device and method for manufacturing same
WO2019131834A1 (en) 2017-12-28 2019-07-04 古河電気工業株式会社 Cooling device

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JP2000304476A (en) * 1999-04-23 2000-11-02 Hitachi Ltd Heat pipe fixing structure
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JP2010203672A (en) * 2009-03-03 2010-09-16 Yamari Sangyo Kk Pipe heater device and method of installing the pipe heater device
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JP2000304476A (en) * 1999-04-23 2000-11-02 Hitachi Ltd Heat pipe fixing structure
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