WO2024004459A1 - ユニット - Google Patents

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Publication number
WO2024004459A1
WO2024004459A1 PCT/JP2023/019477 JP2023019477W WO2024004459A1 WO 2024004459 A1 WO2024004459 A1 WO 2024004459A1 JP 2023019477 W JP2023019477 W JP 2023019477W WO 2024004459 A1 WO2024004459 A1 WO 2024004459A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibrous body
cooler
cooling water
unit
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/JP2023/019477
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
俊一 忍足
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.)
JATCO Ltd
Original Assignee
JATCO 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 JATCO Ltd filed Critical JATCO Ltd
Priority to EP23830910.8A priority Critical patent/EP4550410A4/en
Priority to JP2024530383A priority patent/JPWO2024004459A1/ja
Priority to CN202380050808.8A priority patent/CN119487632A/zh
Publication of WO2024004459A1 publication Critical patent/WO2024004459A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20927—Liquid coolant without phase change
    • 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
    • H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
    • H05K7/20254—Cold plates transferring heat from heat source to coolant
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W40/00—Arrangements for thermal protection or thermal control
    • H10W40/40—Arrangements for thermal protection or thermal control involving heat exchange by flowing fluids
    • H10W40/47—Arrangements for thermal protection or thermal control involving heat exchange by flowing fluids by flowing liquids, e.g. forced water cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for

Definitions

  • the present invention relates to a unit.
  • Patent Document 1 discloses a cooling member that fills a housing with metal fibers and performs cooling by utilizing the high thermal conductivity of the metal fibers.
  • An object of the present invention is to provide a novel structure for utilizing a fibrous body based on the above idea.
  • the unit includes an electric circuit unit, a cooler through which a cooling liquid passes, and a fibrous body, and the electric circuit unit is cooled by the cooler and the fibrous body has a portion disposed at the coolant inlet of the cooler.
  • FIG. 1 is a perspective view of a unit according to an embodiment of the invention.
  • FIG. 2 is a view taken along arrow II in FIG.
  • FIG. 3 is a cross-sectional view taken along line III--III in FIG.
  • FIG. 4 is a perspective view of a unit according to a modification of the embodiment of the present invention.
  • FIG. 5 is a view taken along arrow V in FIG.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG.
  • FIG. 1 is a perspective view of the water-cooled electric circuit unit 1.
  • FIG. 2 is a view taken along arrow II in FIG.
  • FIG. 3 is a cross-sectional view taken along line III--III in FIG.
  • the water-cooled electric circuit unit 1 includes a power module 10 as an electric circuit unit, a cooler 20, and a fibrous body 30.
  • the power module 10 includes switching elements (not shown) such as a plurality of IGBTs (Insulated Gate Bipolar Transistors) that constitute an inverter circuit that controls a rotating electric machine (not shown) as a drive source of the vehicle.
  • the power module 10 is in contact with the cooler 20 and is cooled by the cooler 20.
  • Contact is a concept that includes not only direct contact but also indirect contact (thermal contact), for example, by sandwiching a metal plate with high thermal conductivity.
  • the cooler 20 cools the power module 10, which generates heat during operation. Cooling water as a cooling liquid for cooling the power module 10 passes through the cooler 20 .
  • the cooling liquid is not limited to cooling water, and may be other liquids such as cooling oil.
  • the cooler 20 includes a main body 21 , an inlet 22 as a coolant inlet, an outlet 23 as a coolant outlet, and a plurality of partition plates 24 .
  • the main body portion 21 is formed into a substantially rectangular parallelepiped shape.
  • the main body portion 21 has a top surface 21a and four side surfaces 21b, 21c, 21d, and 21e (see FIG. 3).
  • a cooling water passage 25 serving as a cooling liquid passage is defined within the main body portion 21 .
  • the power module 10 is provided on the top surface 21a.
  • the side surface 21b and the side surface 21c are provided facing each other.
  • the side surface 21d and the side surface 21e are provided to face each other and are provided so as to connect the side surface 21b and the side surface 21c.
  • the introduction port 22 opens on the side surface 21b of the main body portion 21. Cooling water that flows into the cooling water passage 25 and cools the power module 10 is introduced from the inlet 22 .
  • the outlet 23 opens on the side surface 21c of the main body 21.
  • the cooling water that flows out from the cooling water passage 25 after cooling the power module 10 in the cooling water passage 25 is led out from the outlet 23 .
  • a plurality of partition plates 24 (here, three) are provided to partition the cooling water passage 25 into a plurality of (here, four) parallel passages 25a.
  • Each parallel passage 25a is formed to have a substantially rectangular cross section.
  • the partition plate 24 is provided between the pair of side surfaces 21d and 21e of the main body portion 21.
  • the partition plates 24 are arranged at equal intervals between the pair of side surfaces 21d and 21e.
  • the fibrous body 30 is formed into a substantially rectangular shape.
  • the fibrous body 30 is provided along the flow of cooling water, that is, parallel to the liquid flow direction.
  • the fibrous body 30 is provided within a predetermined length of the cooling water passage 25 from the inlet 22 . That is, the fibrous body 30 has a portion located at the inlet 22 of the cooler 20.
  • the fibrous body 30 is attached to the inner surfaces of the side surfaces 21d and 21e of the main body portion 21 and to both surfaces of the partition plate 24, respectively. Thereby, the fibrous bodies 30 are provided on both sides of all the parallel passages 25a.
  • the fibrous body 30 is, for example, copper fiber, but may be other metal fiber, carbon fiber, resin fiber, or the like.
  • turbulence is generated in the cooling water due to surface turbulence caused by the fibers.
  • the cooling water flows along the surface side of the fibrous body 30, turbulent flow can be generated by the fibrous body 30, and the pressure loss of the cooling water can be reduced. Therefore, the energy required to circulate the cooling water can be kept low.
  • the fibrous body 30 is arranged so as to overlap only a portion of the power module 10 when viewed in a cross direction that intersects the liquid flow direction in which cooling water flows in the cooler 20. That is, the power module 10 has a portion that is offset from the fiber body 30.
  • turbulent flow will occur downstream of the fiber body 30 that is offset from the fiber body 30. Therefore, by arranging the power module 10 so as to have a portion that is offset from the fiber body 30, turbulent flow can be generated.
  • the power modules 10 can be overlapped in the area, and cooling efficiency can be improved.
  • the fibrous body 30 may be further provided in the middle of the cooling water passage 25. It's okay. In this way, by providing the plurality of fiber bodies 30 intermittently along the flow of cooling water in the cooling water passage 25, turbulence can be generated in the cooling water over the entire length of the power module 10. .
  • FIGS. 4 to 6 a water-cooled electric circuit unit 1 as a unit according to a modification of the embodiment of the present invention will be described with reference to FIGS. 4 to 6.
  • points different from the above embodiment will be mainly explained, and components having similar functions will be given the same reference numerals and explanations will be omitted.
  • FIG. 4 is a perspective view of the water-cooled electric circuit unit 1.
  • FIG. 5 is a view taken along arrow V in FIG.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG.
  • the water-cooled electric circuit unit 1 includes a power module 10 as an electric circuit unit, a cooler 20, and a fibrous body 30.
  • the fibrous body 30 is formed into a substantially rectangular shape.
  • the fibrous body 30 is provided at the inlet 22 of the parallel passage 25a in the cooling water passage 25.
  • the fibrous body 30 is provided along a cross direction that intersects the liquid flow direction in which the cooling water flows. Thereby, the cooling water passes through the fibrous body 30 and is introduced into the cooler 20.
  • the fibrous body 30 generates turbulence in the cooling water due to its fibers when the cooling water passes through it. Since the fibrous body 30 is provided so as to intersect substantially perpendicularly to the flow direction of the cooling water, it is desirable to use one having a coarser mesh than the case where the fiber body 30 is provided along the flow direction of the cooling water in the above embodiment.
  • the fibrous body 30 since it is only necessary to attach the fibrous body 30 to the inlet 22 of each parallel passage 25a, the fibrous body 30 can be easily attached to the cooler 20.
  • the fibrous body 30 may be further provided in the middle of the cooling water passage 25. It's okay. In this way, by providing the plurality of fiber bodies 30 intermittently along the flow of cooling water in the cooling water passage 25, it is possible to generate turbulence in the cooling water over the entire length direction of the power module 10. .
  • the water-cooled electric circuit unit 1 includes a power module 10, a cooler 20 through which cooling water passes, and a fiber body 30.
  • the power module 10 is cooled by the cooler 20, and the fiber body 30 is cooled by the cooler 20. , has a portion disposed at the inlet 22 of the cooler 20.
  • the power module 10 has a portion that is offset from the fibrous body 30 when viewed in a cross direction that intersects the liquid flow direction in which the cooling water flows in the cooler 20.
  • the power module 10 is arranged so as to have a portion that is offset from the fiber body 30.
  • the power module 10 can be overlapped with the turbulent flow generation region, and the cooling efficiency can be improved.
  • turbulent flow can be generated by the fibrous body 30, and the pressure loss of the cooling water can be reduced.
  • the cooling water passes through the fibrous body 30 and is introduced into the cooler 20.
  • the fibrous body 30 can be easily attached to the cooler 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
PCT/JP2023/019477 2022-07-01 2023-05-25 ユニット Ceased WO2024004459A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP23830910.8A EP4550410A4 (en) 2022-07-01 2023-05-25 Unit
JP2024530383A JPWO2024004459A1 (https=) 2022-07-01 2023-05-25
CN202380050808.8A CN119487632A (zh) 2022-07-01 2023-05-25 组件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022107066 2022-07-01
JP2022-107066 2022-07-01

Publications (1)

Publication Number Publication Date
WO2024004459A1 true WO2024004459A1 (ja) 2024-01-04

Family

ID=89382674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/019477 Ceased WO2024004459A1 (ja) 2022-07-01 2023-05-25 ユニット

Country Status (4)

Country Link
EP (1) EP4550410A4 (https=)
JP (1) JPWO2024004459A1 (https=)
CN (1) CN119487632A (https=)
WO (1) WO2024004459A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000196276A (ja) * 1998-12-25 2000-07-14 Mitsubishi Electric Corp 電子機器
JP2006203159A (ja) * 2005-01-18 2006-08-03 Internatl Business Mach Corp <Ibm> 半導体用熱交換器
JP2019009433A (ja) 2017-06-26 2019-01-17 株式会社巴川製紙所 冷却部材
WO2020235449A1 (ja) * 2019-05-21 2020-11-26 株式会社巴川製紙所 温調ユニット

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002046482A (ja) * 2000-07-31 2002-02-12 Honda Motor Co Ltd ヒートシンク式冷却装置
JP2006132841A (ja) * 2004-11-05 2006-05-25 Mitsubishi Electric Corp 熱交換器
JP4985382B2 (ja) * 2007-12-21 2012-07-25 株式会社デンソー 半導体冷却構造
WO2012114475A1 (ja) * 2011-02-23 2012-08-30 トヨタ自動車株式会社 冷却器
KR102721923B1 (ko) * 2020-05-29 2024-10-24 가부시키가이샤 도모에가와 코퍼레이션 온도 조절 유닛

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000196276A (ja) * 1998-12-25 2000-07-14 Mitsubishi Electric Corp 電子機器
JP2006203159A (ja) * 2005-01-18 2006-08-03 Internatl Business Mach Corp <Ibm> 半導体用熱交換器
JP2019009433A (ja) 2017-06-26 2019-01-17 株式会社巴川製紙所 冷却部材
WO2020235449A1 (ja) * 2019-05-21 2020-11-26 株式会社巴川製紙所 温調ユニット

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4550410A4

Also Published As

Publication number Publication date
EP4550410A4 (en) 2025-10-29
JPWO2024004459A1 (https=) 2024-01-04
CN119487632A (zh) 2025-02-18
EP4550410A1 (en) 2025-05-07

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