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WO1999039145A1 - Dispositif de refroidissement de type caloduc, procede de production et plaque de refroidissement destinee au dispositif de refroidissement de type caloduc - Google Patents

Dispositif de refroidissement de type caloduc, procede de production et plaque de refroidissement destinee au dispositif de refroidissement de type caloduc Download PDF

Info

Publication number
WO1999039145A1
WO1999039145A1 PCT/JP1998/000395 JP9800395W WO9939145A1 WO 1999039145 A1 WO1999039145 A1 WO 1999039145A1 JP 9800395 W JP9800395 W JP 9800395W WO 9939145 A1 WO9939145 A1 WO 9939145A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
heat pipe
cooling plate
cooling device
type cooling
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP1998/000395
Other languages
English (en)
Japanese (ja)
Inventor
Mitsuyoshi Hasegawa
Toshio Takasaki
Hisashi Kondo
Osamu Suzuki
Yasuhiro Hara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to CNB988133660A priority Critical patent/CN1175239C/zh
Priority to PCT/JP1998/000395 priority patent/WO1999039145A1/fr
Priority to KR1020007008223A priority patent/KR20010034443A/ko
Publication of WO1999039145A1 publication Critical patent/WO1999039145A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores

Definitions

  • the present invention relates to a heat pipe type cooling device, a method of manufacturing the same, and a cooling plate for the heat pipe type cooling device.
  • the present invention relates to a heat pipe type cooling device, and particularly to a heat source suitable for cooling a power conversion device such as an inverter device for a main motor, a converter device, or an inverter device for an auxiliary power source mounted on an electric vehicle. It is related to a top pipe cooling device.
  • a conventional heat pipe type cooling device is configured, for example, as shown in FIG. 1 of JP-A-3-133165 (Prior Art 1) and FIG. 1 of JP-A-4-1225790 (Prior Art 2). Have been.
  • a heating element is mounted on one side of a cooling plate, a hole is formed in the thickness direction from the other side, a heat pipe is inserted into the hole, and the cooling fin is further cooled. It is formed on the thickness side of the plate.
  • a concave groove is formed on one side surface of the cooling plate, and a heat pipe is mounted in the concave groove.
  • An object of the present invention is to provide a heat pipe type cooling device capable of efficiently cooling a cooling plate according to heat reception.
  • the present invention provides a heat pipe type cooling device comprising a cooling plate having one side as a heat receiving surface and the other side as a heat releasing surface, and a heat pipe embedded in the cooling plate. A plurality of heat radiation fins were provided on the heat radiation surface.
  • FIG. 1 is a longitudinal side view showing an embodiment of a heat pipe type cooling device according to the present invention.
  • FIG. 2 is an enlarged cross-sectional view taken along the line III-III of FIG.
  • Fig. 3 is an enlarged view of Fig. 2 before caulking the heat pipe.
  • Fig. 4 is an equivalent view of Fig. 1 showing another embodiment of the heat pipe type cooling device as viewed from the right side.
  • FIG. 5 is a cross-sectional view taken along the line VV of FIG. 4, wherein (a), (b), (c), and (d) show different cross-sectional shapes.
  • FIG. 6 shows a power conversion to which the heat pipe type cooling device according to the present invention is applied.
  • Block diagram showing the electrical circuit of the switching device for the u phase, and omitting the V and W phases.
  • FIGS. 1 to 3 by taking a power conversion device mounted under the floor of an electric vehicle as an example.
  • a cooling plate 3 is installed so as to cover the opening 2 of the electrical equipment box 1 that stores electrical equipment that dislikes dust, moisture, and water droplets among the electrical equipment required as a power converter.
  • This cooling plate 3 is secured to the peripheral edge 2F of the opening 2 by a well-known fastening means, for example, through packing (not shown), if necessary, in order to secure airtightness in the electrical equipment box 1. Installed.
  • the cooling plate 3 is formed of a good heat conductive material such as copper or aluminum, and the side facing the inside of the electric equipment box 1 is a flat heat receiving surface, and the side facing the outside of the electric equipment box 1 is Heat dissipation surface.
  • a plurality of heat radiating fins 4 projecting substantially perpendicular to the heat radiating surface and extending over the entire height of the cooling plate 3 are provided in parallel in the vertical direction.
  • a concave groove 5 is provided at the bottom between adjacent heat radiation fins 4 for every four or more heat radiation fins, and every three heat fins in FIGS. 2 and 3.
  • the concave groove 5 is provided so as to be parallel to the heat radiating fins 4 and has a length extending over the entire height of the cooling plate 3.
  • the concave groove 5 is a groove in which a heat pipe 10 described later is embedded, and has a cross-sectional shape similar to the outer shape of the heat pipe 10 in order to secure a contact area with the heat pipe 10. That is, when the outer shape of the heat pipe 10 has a circular cross-section, the heat pipe 10 is formed in the concave groove 5 having a semi-circular cross-section facing approximately 180 degrees of the circular cross-section.
  • Small sides 6a and 6b are provided on both sides of the opening edge of the concave groove 5 over its entire length.
  • the protruding dimensions of these small sides 6a and 6b are as follows. When the small sides 6a and 6b are caulked with the groove embedded in the concave groove 5, a length that covers the remaining 180 degrees of the circular cross section of the heat pipe 10 is required.
  • the cooling plate 3 having a plurality of heat radiating fins 4, concave grooves 5, and small sides 6a and 6b improves productivity by, for example, extruding aluminum by extrusion molding using a die. I do.
  • the cooling plate 3 may be formed by forming the concave groove 5 in a flat plate by cutting and screwing the ripe fin 4.
  • the heat pipe 10 buried in the concave groove 5 is formed in a circular cross section, is bent about 95 degrees at an intermediate portion, and is formed in an L-shape as a whole. Is the heat receiving part 11 and the other side is the heat radiating part 12.
  • a refrigerant having a volume substantially corresponding to the volume of the heat receiving portion 11 is sealed.
  • a large number of about 50 radiating fins 13 are attached to the radiating section 12 by press fitting.
  • the heat receiving portion 11 of the heat pipe 10 thus formed is buried in the concave groove 5, as shown in FIG. 3, the heat receiving portion 11 is inserted into the concave groove 5.
  • the crimping tool 14 presses the small sides 6a and 6b at the edge of the concave groove 5. Due to the pressing by the crimping tool 14, the small sides 6a and 6b are plastically deformed so as to surround the heat receiving portion 11 of the heat pipe 10 and adhere to each other. Due to the plastic deformation of the small sides 6a and 6b due to this caulking, the heat receiving portion 11 can be always kept in a pressure contact state in the concave groove 5.
  • the crimping tool 14 has a concave curved surface portion 15 at the distal end so as to plastically deform the small sides 6 a and 6 b so as to surround the heat receiving portion 11.
  • a method of plastically deforming the small sides 6a and 6b by using the crimping tool 14 such as a method of fixing the crimping tool 14 to a punch and lowering it by a press machine, or a method of caulking.
  • the cooling plate 3 having the heat-generating electric parts 9 attached to the heat-receiving surface side and the heat pipe 10 attached to the heat-dissipating surface side is used as shown in FIG. Fix so that opening 2 of box 1 is closed.
  • the cooling plate 3 When attaching the cooling plate 3 to the electric equipment box 1, be careful about the direction of the heat radiation fins 4.
  • the radiating fins 4 by mounting the radiating fins 4 so as to face up and down, it is possible to follow the flow of the outside air due to natural convection, and to perform efficient cooling.
  • the cooling plate 3 may be configured by assembling a plurality of small cooling plates 3 as shown in FIG. 4 in consideration of ease of assembly and handling. That is, it has the same height dimensions as the cooling plate 3, like the cooling plate 3, mounts the heat-generating electric parts 9 with one side as a heat-receiving surface, and heats the heat-radiating fins 4 with the other side as a heat-radiating surface.
  • the small cooling plates 3 U, 3 V, 3 W provided with the main pipe 10 are connected to the opening 2 of the electric equipment box 1 and fixed.
  • the electrical equipment box When mounting multiple small cooling plates 3U, 3V, 3W in a row, the electrical equipment box should be between the opposing adjacent cooling plates 3U—3V, 3V—3W between the boundary surfaces 7a, 7b.
  • engaging recesses parallel to the heat radiating fins 4 and the concave grooves 5 as shown in FIG. 8a and the engaging projection 8b are formed.
  • the engaging concave portions 8a and the engaging convex portions 8b are formed by the engaging small portions of the adjacent small cooling plates 3U—3V and 3V-3W, respectively. 8b and the engaging recess 8a are fitted and adhered to each other with a slight tolerance, preventing invasion of outside air and moisture from the boundary surfaces 7a and 7b.
  • the fitting structure between the engaging concave portion 8a and the engaging convex portion 8b is, as shown in (a) of FIG. 5 and (c), (d) in FIG. 5, two sets of rectangular engaging recesses and engaging projections are respectively provided.
  • the fitting structure between the engaging concave portion 8a and the engaging convex portion 8b is, as shown in (a) of FIG. 5 and (c), (d) in FIG. 5, two sets of rectangular engaging recesses and engaging projections are respectively provided.
  • a heat generating electric component 9 for one phase consisting of four series gate-insulated bipolar transistors, diodes, etc.
  • the assembly work and maintenance work can be performed in units of small cooling plates 3U, 3V, 3W. It will be easier.
  • the engaging concave portion 8a and the engaging convex portion 8b of the boundary surfaces 7a, 7b of the adjacent small cooling plates 3U, 3V, 3W are engaged.
  • the airtightness of the boundary surfaces 7a and 7b can be improved.
  • the cooling plate is The surface facing the electrical equipment box 1 of 3 becomes a heat receiving surface, and absorbs heat generated from the electrical equipment in the electrical equipment box 1 and heat generated from the heat generating electrical components 9 mounted on the cooling plate 3.
  • the heat transmitted to the heat receiving surface is guided to the heat radiating surface of the cooling plate 3 facing the outside air, and is released into the outside air by the heat radiating fins 4 and the heat pipe 10.
  • the evaporated refrigerant in the heat pipe 10 freezes as it is condensed in the heat radiating section 12 and does not return to the heat receiving section 11, a so-called dryout phenomenon may occur. There is. If the refrigerant freezes in the heat radiating section 12 and does not return to the heat receiving section 11, the refrigerant is not present in the heat receiving section 11 at the time of start-up, and even if there is a small amount, the refrigerant is transmitted to the cooling plate 3. Heat cannot be transferred to the heat radiating section 12 to dissipate heat, and the heat-generating electrical components 9 may be thermally damaged.
  • a short heat pipe shorter than the heat pipe 10 is provided separately from the heat pipe 10 to intentionally lower the cooling performance and raise the temperature. It is also conceivable that the function of the heat pipe 10 is restored by melting the frozen refrigerant in the heat receiving section 11.
  • cooling plate 3 can be efficiently cooled according to the heat reception.
  • the heat radiation fin 4 the concave groove 5, the small side 6a,
  • the cooling plate 3 having the engaging concave portions 8a and the engaging convex portions 8b of the boundary surfaces 7a and 7b can be integrally formed by extrusion, so that a hole is required for mounting the heat pipe 10 therein. Since there is no need for a machine to be provided, manufacturing is simplified.
  • the small sides 6 a and 6 b provided at the edge of the concave groove 5 at the same length as the heat radiation fin 4 are caulked over the entire length after the heat pipe 10 is attached, and the plastic
  • the caulking is not necessarily performed for the entire length, but may be performed partially, for example, only one side or discontinuously on both sides.
  • a slight gap remains between the concave groove 5 and the surface of the heat pipe 10.
  • the contact thermal resistance increases. Heat conduction efficiency and crevice corrosion.
  • the surface of the heat receiving portion 11 of the heat pipe 10 is coated with a soft metal film 16 of low hardness, such as solder, tin, or lead, and is put into the groove 5.
  • a filler having good heat conductivity, a sheet-like soft metal is applied or wound on the surface of the heat receiving portion 11 of the heat pipe 10 or a concave groove is used.
  • the heat receiving portion 11 is inserted into the concave groove 5 while being applied or spread in the inside of the groove 5, and the crimping work is performed in this state, so that the generation of the gap can be eliminated.
  • a resin having good thermal conductivity may be permeated by vacuum impregnation or the like to eliminate the gap.

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

Abstract

La présente invention concerne un dispositif de refroidissement de type caloduc capable de refroidir efficacement une plaque de refroidissement en fonction de la chaleur que cette dernière reçoit. Ledit dispositif de refroidissement comprend une plaque de refroidissement (3) dont un côté constitue une surface de réception de chaleur et dont l'autre côté constitue une surface de dissipation de chaleur, et un caloduc (10) enseveli dans la plaque de refroidissement (3). Plusieurs ailettes de dissipation de chaleur sont formées sur la surface de dissipation de chaleur.
PCT/JP1998/000395 1998-01-30 1998-01-30 Dispositif de refroidissement de type caloduc, procede de production et plaque de refroidissement destinee au dispositif de refroidissement de type caloduc Ceased WO1999039145A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CNB988133660A CN1175239C (zh) 1998-01-30 1998-01-30 热管型冷却装置及其制造方法
PCT/JP1998/000395 WO1999039145A1 (fr) 1998-01-30 1998-01-30 Dispositif de refroidissement de type caloduc, procede de production et plaque de refroidissement destinee au dispositif de refroidissement de type caloduc
KR1020007008223A KR20010034443A (ko) 1998-01-30 1998-01-30 히트 파이프형 냉각장치 및 그 제조방법, 히트 파이프형냉각장치용 냉각판

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/000395 WO1999039145A1 (fr) 1998-01-30 1998-01-30 Dispositif de refroidissement de type caloduc, procede de production et plaque de refroidissement destinee au dispositif de refroidissement de type caloduc

Publications (1)

Publication Number Publication Date
WO1999039145A1 true WO1999039145A1 (fr) 1999-08-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/000395 Ceased WO1999039145A1 (fr) 1998-01-30 1998-01-30 Dispositif de refroidissement de type caloduc, procede de production et plaque de refroidissement destinee au dispositif de refroidissement de type caloduc

Country Status (3)

Country Link
KR (1) KR20010034443A (fr)
CN (1) CN1175239C (fr)
WO (1) WO1999039145A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008010828A (ja) * 2006-06-29 2008-01-17 Cooler Master Co Ltd 導熱モジュールおよびその製造方法
US20130155616A1 (en) * 2011-12-16 2013-06-20 Delta Electronics (Shanghai) Co., Ltd. Hybrid heat sink and hybrid heat sink assembly for power module
EP3422403A1 (fr) * 2017-06-30 2019-01-02 Siemens Aktiengesellschaft Dispositif de refroidissement
WO2019012579A1 (fr) * 2017-07-10 2019-01-17 三菱電機株式会社 Dispositif de refroidissement et son procédé de fabrication
WO2019131834A1 (fr) * 2017-12-28 2019-07-04 古河電気工業株式会社 Dispositif de refroidissement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003023307A1 (fr) * 2001-09-05 2003-03-20 Showa Denko K.K. Dissipateur de chaleur, dispositif de commande et machine-outil associee au dispositif de commande
CN100356557C (zh) * 2003-09-05 2007-12-19 良维科技股份有限公司 加热除气式的导热管制法
DE102010015018A1 (de) 2010-04-14 2011-10-20 Krones Ag Strahlerkühlung
DE102010018214A1 (de) * 2010-04-23 2011-10-27 Krones Ag Heizmodul mit Oberflächenkühlung für Vorformlinge
CN109066007B (zh) * 2018-07-26 2020-06-30 东南大学 一种基于热管的大规模电池模组集成箱冷却系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104181U (fr) * 1980-12-17 1982-06-26
JPS599495A (ja) * 1982-07-09 1984-01-18 Matsushita Electric Ind Co Ltd ヒ−トパイプ式放熱装置
JPH0536897U (ja) * 1991-10-11 1993-05-18 古河電気工業株式会社 ヒートパイプ式放熱装置
JPH07169889A (ja) * 1993-12-15 1995-07-04 Hitachi Cable Ltd ヒートシンク

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104181U (fr) * 1980-12-17 1982-06-26
JPS599495A (ja) * 1982-07-09 1984-01-18 Matsushita Electric Ind Co Ltd ヒ−トパイプ式放熱装置
JPH0536897U (ja) * 1991-10-11 1993-05-18 古河電気工業株式会社 ヒートパイプ式放熱装置
JPH07169889A (ja) * 1993-12-15 1995-07-04 Hitachi Cable Ltd ヒートシンク

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008010828A (ja) * 2006-06-29 2008-01-17 Cooler Master Co Ltd 導熱モジュールおよびその製造方法
US20130155616A1 (en) * 2011-12-16 2013-06-20 Delta Electronics (Shanghai) Co., Ltd. Hybrid heat sink and hybrid heat sink assembly for power module
US9136201B2 (en) * 2011-12-16 2015-09-15 Delta Electronics (Shanghai) Co., Ltd. Hybrid heat sink and hybrid heat sink assembly for power module
EP3422403A1 (fr) * 2017-06-30 2019-01-02 Siemens Aktiengesellschaft Dispositif de refroidissement
WO2019012579A1 (fr) * 2017-07-10 2019-01-17 三菱電機株式会社 Dispositif de refroidissement et son procédé de fabrication
JPWO2019012579A1 (ja) * 2017-07-10 2020-01-23 三菱電機株式会社 冷却装置及び冷却装置の製造方法
WO2019131834A1 (fr) * 2017-12-28 2019-07-04 古河電気工業株式会社 Dispositif de refroidissement

Also Published As

Publication number Publication date
CN1175239C (zh) 2004-11-10
CN1284160A (zh) 2001-02-14
KR20010034443A (ko) 2001-04-25

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