WO2024004457A1 - ユニット - Google Patents
ユニット Download PDFInfo
- Publication number
- WO2024004457A1 WO2024004457A1 PCT/JP2023/019452 JP2023019452W WO2024004457A1 WO 2024004457 A1 WO2024004457 A1 WO 2024004457A1 JP 2023019452 W JP2023019452 W JP 2023019452W WO 2024004457 A1 WO2024004457 A1 WO 2024004457A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit
- oil
- bent portion
- case
- heat
- 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
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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
- H05K7/20236—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures by immersion
-
- 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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20436—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
- H05K7/20445—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing the coupling element being an additional piece, e.g. thermal standoff
- H05K7/20472—Sheet interfaces
- H05K7/20481—Sheet interfaces characterised by the material composition exhibiting specific thermal properties
-
- 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
Definitions
- the present invention relates to a unit.
- Patent Document 1 discloses a cooling member in which a metal fiber sheet is housed in a housing in contact with a heating element, and heat conducted from the heating element to the metal fiber sheet is absorbed by a refrigerant introduced into the housing.
- the metal fiber sheet is composed of highly thermally conductive copper fibers and aluminum fibers, so it is efficiently cooled by the refrigerant.
- the present inventors found that when the cooling liquid passes through the fibers, turbulent flow occurs, and the turbulent flow effect accelerates cooling. Furthermore, it has been found that by passing a cooling liquid over the surface of the fiber, turbulent flow is generated due to turbulence on the fiber surface, and cooling is also promoted by the turbulent flow effect.
- the present invention has been made in view of these problems, and it is an object of the present invention to provide a structure that reflects the utilization form of a fibrous body based on the technical idea of performing cooling using the turbulent flow effect.
- a unit includes a cooling liquid, an electric circuit unit, and a heat-conducting fiber body.
- the heat-conducting fiber body has a contact portion that contacts the electric circuit unit and a bent portion. The bent portion is disposed within a liquid flow path of the cooling liquid.
- turbulence is generated by arranging the bent portion within the liquid flow path, and as a result, cooling of the bent portion itself is promoted. Further, the bent portion is thermally connected to the electric circuit unit via the contact portion. Therefore, by dissipating heat from the electrical circuit unit to the cooling liquid through the bending part, it is possible to cool the electrical circuit unit using the turbulent flow effect, thereby improving the cooling efficiency of the electrical circuit unit. be able to.
- the structure of such heat-conducting fibers allows the length and flexibility to be adjusted as appropriate, which means that the cooling flow path can be formed in any location, and the layout of the unit as a whole can be adjusted. It also contributes to improving the degree of freedom.
- FIG. 1 is a schematic configuration diagram of a unit according to this embodiment.
- FIG. 2 is a sectional view showing the main parts of the inverter.
- FIG. 3 is an enlarged cross-sectional view showing the bent portion together with the partial passage.
- FIG. 4 is an explanatory diagram of the bending direction of the bending portion.
- FIG. 1 is a schematic configuration diagram of a unit 100 according to this embodiment.
- FIG. 2 is a sectional view showing the main parts of the inverter 10.
- FIG. 3 is an enlarged sectional view showing the bent portion 13b together with the partial passage 53a.
- FIG. 4 is a diagram illustrating the bending direction of the bending portion 13b with respect to the liquid flow direction F in the AA cross section shown in FIG.
- the rotor and stator of the rotating electric machine 20 and the reduction gear mechanism of the reducer 30 are omitted from illustration for the rotating electrical machine 20 and the reducer 30, and the oil reservoir 21b of the rotating electrical machine 20 and the oil reservoir of the reducer 30 are omitted.
- 31b is schematically shown in cross section.
- the unit 100 is mounted, for example, on an electric vehicle that uses the rotating electric machine 20 as a drive source.
- the unit 100 includes an inverter 10, a rotating electrical machine 20, a speed reducer 30, and a cooling device 50.
- the inverter 10 is an electric circuit unit and includes a case 11 and an electric circuit 12.
- the case 11 is a container and houses the electric circuit 12.
- the case 11 is made of aluminum alloy, for example.
- the case 11 may have a portion made of resin, for example.
- Case 11 has a box-shaped portion 111 and a plate-shaped portion 112.
- the box-like part 111 has a box-like shape with one side open, and the plate-like part 112 closes the opening of the box-like part 111.
- the case 11 is provided so that the plate-shaped portion 112 forms the lower surface in the direction of gravity.
- the electric circuit 12 is provided inside the case 11.
- the electric circuit 12 includes a substrate 121 and a circuit section 122.
- the circuit section 122 is shown surrounded by a two-dot broken line.
- the board 121 is a printed circuit board and is arranged on the bottom wall of the case 11.
- the circuit section 122 is mounted on the substrate 121.
- the circuit portion 122 is electrically connected to the substrate 121 by connecting to the circuit pattern of the substrate 121.
- the circuit section 122 includes a semiconductor element 122a, a wire 122b, a lead frame 122c, a joining member 122d, a heat dissipation member 122e, and a mold resin 122f.
- the semiconductor element 122a is a power element, for example, and is a switching element such as an IGBT or a power MOSFET.
- a plurality of semiconductor elements 122a can be provided, and are arranged, for example, along the back-to-front direction of FIG. 2 (direction perpendicular to the paper surface of FIG. 2).
- the semiconductor element 122a is electrically connected to the lead frame 122c via wires 122b.
- the joining member 122d joins the semiconductor element 122a and the heat radiation member 122e, and the heat radiation member 122e is used for heat radiation from the semiconductor element 122a.
- Both the bonding member 122d and the heat dissipating member 122e are heat conducting members, and the heat of the semiconductor element 122a is transmitted to the heat dissipating member 122e via the bonding member 122d.
- the joining member 122d and the heat dissipating member 122e are made of, for example, a member having higher thermal conductivity than the mold resin 122f.
- the semiconductor element 122a is provided within a mold resin 122f, and is sealed by the mold resin 122f. Heat radiation from the semiconductor element 122a is performed, for example, via the mold resin 122f.
- the lead frame 122c protrudes from the mold resin 122f, and the heat dissipation member 122e is exposed from the mold resin 122f. Therefore, heat radiation from the semiconductor element 122a can also be promoted via the lead frame 122c and the heat radiation member 122e.
- the lead frame 122c and the heat dissipation member 122e together constitute a heat dissipation promotion part that promotes heat dissipation from the semiconductor element 122a to the outside of the mold resin 122f.
- the rotating electric machine 20 is controlled by the inverter 10 and generates power.
- the power generated by the rotating electrical machine 20 is transmitted to the drive wheels of the vehicle via the reduction gear 30.
- the rotating electric machine 20 has a case 21.
- the case 21 has an inlet 21a and an oil reservoir 21b, and accommodates the rotor and stator of the rotating electrical machine 20.
- the inverter 10 is installed in the case 21 from the outside.
- the inverter 10 is installed in the case 21 from the side.
- the introduction port 21a penetrates the upper wall of the case 21 and communicates between the inside and outside of the case 21.
- Oil OL which is a cooling liquid
- the introduced oil OL falls under the action of gravity, and after lubricating the rotor and cooling the stator, is stored in the oil reservoir 21b.
- a part of the stator can be placed in the oil reservoir 21b, so that the oil OL stored in the oil reservoir 21b can be used for cooling the stator.
- the speed reducer 30 reduces the input rotation from the rotating electrical machine 20 and outputs the reduced speed.
- the speed reducer 30 has a case 31.
- the case 31 has a discharge port 31a and an oil reservoir 31b, and accommodates a reduction gear mechanism.
- the case 31 is integrated with the case 21 by fastening bolts, for example, and together with the case 21 constitutes the housing 40 of the rotating electrical machine 20 and the speed reducer 30.
- the housing 40 has a communication port 41, and the communication port 41 communicates between the oil reservoir 21b in the case 21 and the oil reservoir 31b in the case 31. Therefore, the oil OL can be introduced from the oil reservoir 21b to the oil reservoir 31b via the communication port 41.
- the wall in which the communication port 41 is provided is constituted by a part of the case 21, for example.
- the oil reservoir 31b stores the oil OL introduced from the oil reservoir 21b.
- the oil OL stored in the oil reservoir 31b is scraped up by a rotating member such as a gear and used for lubricating the reduction gear mechanism. Oil OL is discharged from the case 31 from the oil reservoir 31b through the discharge port 31a.
- the speed reducer 30 corresponds to a power transmission mechanism.
- the cooling device 50 has an oil pump 51, an oil cooler 52, and a connecting passage 53.
- the oil pump 51 has a suction port 51a and a discharge port 51b, and pumps oil OL.
- An oil cooler 52 is connected to the discharge port 51b, and the oil cooler 52 cools the oil OL pumped by the oil pump 51.
- connection passage 53 branches from the discharge port 51b of the oil pump 51 and connects to the inverter 10 and the rotating electric machine 20 via the oil cooler 52.
- One of the branched connection passages 53 is connected to the introduction port 21a of the rotating electrical machine 20.
- the other branched connection passage 53 is connected to one end of the partial passage 53a.
- the partial passage 53a is a connecting passage 53 provided within the case 11, and has both ends passing through the case 11. One end of the partial passage 53a passes through the case 11 on the front side in FIGS. 1 and 2, and the other end passes through the case 11 on the back side in FIGS. 1 and 2.
- the connecting passage 53 further joins the other end of the partial passage 53a and the discharge port 31a of the reducer 30, and then connects to the suction port 51a of the oil pump 51.
- the first circulation path C1 is a circulation path in which the oil OL passes through the oil pump 51, the oil cooler 52, and the inverter 10 in this order and returns to the oil pump 51.
- the second circulation path C2 is a circulation path in which the oil OL passes from the oil pump 51 through the oil cooler 52, the rotating electric machine 20, and the speed reducer 30 in this order and returns to the oil pump 51.
- the first circulation path C1 corresponds to a liquid flow path, and oil OL flows in the partial passage 53a using the oil pump 51 incorporated in the first circulation path C1 as a coolant supply source.
- the inverter 10 further includes a fibrous body 13.
- the fiber body 13 is a heat conductive fiber body, and is made of a heat conductive material such as a metal containing an alloy or carbon.
- the fiber body 13 is, for example, a heat conductive fiber body made of a material having higher thermal conductivity than the mold resin 122f.
- the fibrous body 13 is provided within the case 11 and has a stretched plate-like or band-like shape.
- the fibrous body 13 has a contact portion 13a and a bent portion 13b.
- the contact portion 13a is provided at one end of the fibrous body 13 and comes into contact with the heat radiating member 122e.
- the contact portion 13a is arranged between the heat dissipation member 122e and the substrate 121, and makes surface contact with the surface of the heat dissipation member 122e with a plate-like or band-shaped surface.
- the contact portion 13a and the heat dissipating member 122e can be joined by, for example, beam welding or ultrasonic welding.
- the contact portion 13a is thermally connected to the semiconductor element 122a by contacting the heat dissipation member 122e.
- the bent portion 13b is provided at the other end of the fibrous body 13.
- the bent portion 13b is constituted by a bent portion of the fiber body 13, and is provided separately from the contact portion 13a.
- the bent portion 13b is disposed within the partial passage 53a, so that it is disposed within the first circulation path C1, that is, within the flow (liquid flow) of the oil OL in the first circulation path C1.
- the fiber body 13 has a structure in which the length and flexibility can be adjusted as appropriate. Therefore, there is a high degree of freedom in terms of layout, allowing the partial passage 53a to be formed in any location, which also contributes to improving the degree of freedom in the layout of the unit 100 as a whole.
- the bent portion 13b is bent at multiple locations. Therefore, the surface area of the bent portion 13b in the partial passage 53a increases compared to the case where the partial passage 53a is not bent, and more turbulence is caused by the oil OL flowing on the surface of the bent portion 13b. As a result, cooling of the semiconductor element 122a is further promoted.
- the bent portion 13b is bent into a spiral shape by rounding the fibrous body 13 along the stretching direction of the fibrous body 13. Therefore, the surface area of the bent portion 13b is increased not only in the outermost portion of the spiral shape but also in the portion inside the spiral portion.
- the bent portion 13b is arranged in the partial passage 53a such that the bending direction of the bent portion 13b intersects the liquid flow direction F of the oil OL passing through the bent portion 13b. Therefore, the liquid flow resistance can be reduced compared to the case where the bending direction is parallel to the liquid flow direction F.
- the bending direction of the bending portion 13b is approximately perpendicular to the liquid flow direction F. As a result, liquid flow resistance is reduced as much as possible.
- the liquid flow direction F is the extending direction of the partial passage 53a.
- the partial passage 53a can be provided along the direction in which the plurality of semiconductor elements 122a are arranged (for example, the direction toward the back in FIG. 2). Therefore, in the unit 100, by providing the fibrous body 13 for each of the plurality of semiconductor elements 122a, it is possible to improve the cooling efficiency of each of the plurality of semiconductor elements 122a.
- the oil OL has insulation properties. Therefore, even if the bent portion 13b is disposed within the partial passage 53a, the insulation state of the electric circuit 12 is not particularly deteriorated by the oil OL itself. Furthermore, since the partial passage 53a can be made of resin, for example, the insulation of the electric circuit 12 is also ensured. The insulation of the electric circuit 12 may be ensured by, for example, forming a part of the partial passage 53a with resin. Portions of the connecting passage 53 other than the partial passage 53a can be made of an appropriate material such as metal.
- the unit 100 can include, for example, a filter in the connection passage 53 downstream of the speed reducer 30 to trap contamination.
- a filter in the connection passage 53 downstream of the speed reducer 30 to trap contamination.
- the unit 100 includes an oil OL, an inverter 10, and a fibrous body 13.
- the fibrous body 13 has a contact portion 13a that contacts the semiconductor element 122a of the inverter 10, and a bent portion 13b.
- the bent portion 13b is arranged within the first circulation path C1 of the oil OL.
- the contact portion 13a that contacts the semiconductor element 122a directly contacts the heat dissipation member 122e, and indirectly contacts the semiconductor element 122a via other heat conductive members (here, the bonding member 122d and the heat dissipation member 122e). do. That is, the contact portion 13a comes into contact with the contact portion 13a, which includes indirect contact via another heat conducting member.
- the other heat conducting members may be members having higher thermal conductivity than the mold resin 122f.
- the fiber body 13 is a heat-conducting fiber body, and the bent portion 13b is thermally connected to the semiconductor element 122a via the contact portion 13a. Therefore, by dissipating heat from the semiconductor element 122a to the oil OL via the bent portion 13b, the semiconductor element 122a can be cooled using the turbulent flow effect, thereby improving the cooling efficiency of the semiconductor element 122a. be able to.
- the structure of the fibrous body 13 is one in which the length and flexibility can be adjusted as appropriate, this means that the structure allows the cooling flow path, as exemplified by the partial passage 53a, to be formed in any location. do. Therefore, such a configuration also contributes to improving the degree of freedom in layout of the unit 100 as a whole.
- the unit 100 can improve the cooling efficiency of the inverter 10 by cooling the semiconductor elements 122a.
- the contact portion 13a contacts the semiconductor element 122a at one end of the fibrous body 13, and the bent portion 13b is bent at the other end of the fibrous body 13. According to such a configuration, the fiber body 13 does not need to be made longer than necessary, and the bent portion 13b can be easily formed.
- the bent portion 13b is bent at multiple locations. According to such a configuration, the surface area of the bent portion 13b in the partial passage 53a can be increased compared to the case where the bent portion 13b is not bent, so that more turbulent flow can be generated, thereby improving the cooling efficiency. can be increased.
- the bending direction of the bending portion 13b intersects with the direction of the liquid flow passing through the bending portion 13b. According to such a configuration, the liquid flow resistance can be reduced compared to the case where the bending direction is made parallel to the liquid flow direction F.
- the contact portion 13a may be configured to contact the case 11. Even in this case, by releasing heat from the case 11 to the oil OL via the fibrous body 13, the inverter 10 can be cooled using the turbulent flow effect. Also in this case, there is a high degree of freedom in the layout, for example, the partial passage 53a does not need to be provided in the case 11, which contributes to improving the degree of freedom in the layout of the unit 100 as a whole.
- the cooling liquid does not necessarily have to be oil OL, and for example, a liquid having insulation properties other than oil OL may be used as the cooling liquid.
- the unit 100 may be configured to include a rotating electrical machine 20 and/or a reduction gear 30, that is, at least one of the rotating electrical machine 20 and the reduction gear 30.
- the unit 100 can also be called, for example, a motor unit (a unit having at least a motor) or a power transmission device (a device having at least a power transmission mechanism).
- the motor is a rotating electric machine having an electric motor function and/or a generator function (at least one of the electric motor function and the generator function).
- the power transmission mechanism is, for example, a gear mechanism and/or a differential gear mechanism.
- a device (unit) having a motor and a power transmission mechanism is included in the concepts of both a motor unit and a power transmission device.
- the electric circuit unit exemplified by the inverter 10 can be one component of the unit 100 as described above, and has a configuration including an electric circuit and a container that houses the electric circuit.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inverter Devices (AREA)
- Motor Or Generator Cooling System (AREA)
- Rectifiers (AREA)
Abstract
Description
11 ケース
12 電気回路
121 基板
122 回路部
122a 半導体素子(電気回路ユニットの一部)
13 繊維体(導熱繊維体)
13a 接触部
13b 折曲部
20 回転電機
30 減速機
50 冷却装置
53 接続通路
53a 部分通路
100 ユニット
C1 第1循環経路(液流経路)
OL オイル(冷却液)
Claims (4)
- 冷却液と、電気回路ユニットと、導熱繊維体とを有し、
前記導熱繊維体は前記電気回路ユニットに接触する接触部と、折り曲げられた折曲部とを有し、
前記折曲部は前記冷却液の液流経路内に配置される、
ユニット。 - 請求項1に記載のユニットであって、
前記接触部は前記導熱繊維体の一端で前記電気回路ユニットに接触し、
前記折曲部は前記導熱繊維体の他端で折り曲げられる、
ユニット。 - 請求項1に記載のユニットであって、
前記折曲部は複数個所折れ曲がっている、
ユニット。 - 請求項1又は3に記載のユニットであって、
前記折曲部の折り曲げ方向は、前記折曲部を通過する液流の方向と交差する、
ユニット。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380049956.8A CN119404311A (zh) | 2022-06-28 | 2023-05-25 | 组件 |
| JP2024530381A JP7719966B2 (ja) | 2022-06-28 | 2023-05-25 | ユニット |
| EP23830908.2A EP4550409A4 (en) | 2022-06-28 | 2023-05-25 | UNIT |
| US18/878,201 US20250386476A1 (en) | 2022-06-28 | 2023-05-25 | Unit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022-103296 | 2022-06-28 | ||
| JP2022103296 | 2022-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024004457A1 true WO2024004457A1 (ja) | 2024-01-04 |
Family
ID=89382660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2023/019452 Ceased WO2024004457A1 (ja) | 2022-06-28 | 2023-05-25 | ユニット |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250386476A1 (ja) |
| EP (1) | EP4550409A4 (ja) |
| JP (1) | JP7719966B2 (ja) |
| CN (1) | CN119404311A (ja) |
| WO (1) | WO2024004457A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006203159A (ja) * | 2005-01-18 | 2006-08-03 | Internatl Business Mach Corp <Ibm> | 半導体用熱交換器 |
| JP2008067546A (ja) * | 2006-09-08 | 2008-03-21 | Toyota Motor Corp | コンデンサの冷却構造およびその冷却構造を備えたモータ |
| JP2019009433A (ja) | 2017-06-26 | 2019-01-17 | 株式会社巴川製紙所 | 冷却部材 |
| JP2020507212A (ja) * | 2017-01-30 | 2020-03-05 | ヤサ リミテッド | 半導体冷却装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109155592B (zh) * | 2016-04-28 | 2021-01-01 | 日产自动车株式会社 | 车载用电力变换装置 |
-
2023
- 2023-05-25 EP EP23830908.2A patent/EP4550409A4/en active Pending
- 2023-05-25 US US18/878,201 patent/US20250386476A1/en active Pending
- 2023-05-25 WO PCT/JP2023/019452 patent/WO2024004457A1/ja not_active Ceased
- 2023-05-25 CN CN202380049956.8A patent/CN119404311A/zh active Pending
- 2023-05-25 JP JP2024530381A patent/JP7719966B2/ja active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006203159A (ja) * | 2005-01-18 | 2006-08-03 | Internatl Business Mach Corp <Ibm> | 半導体用熱交換器 |
| JP2008067546A (ja) * | 2006-09-08 | 2008-03-21 | Toyota Motor Corp | コンデンサの冷却構造およびその冷却構造を備えたモータ |
| JP2020507212A (ja) * | 2017-01-30 | 2020-03-05 | ヤサ リミテッド | 半導体冷却装置 |
| JP2019009433A (ja) | 2017-06-26 | 2019-01-17 | 株式会社巴川製紙所 | 冷却部材 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4550409A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119404311A (zh) | 2025-02-07 |
| EP4550409A4 (en) | 2025-10-29 |
| JP7719966B2 (ja) | 2025-08-06 |
| US20250386476A1 (en) | 2025-12-18 |
| EP4550409A1 (en) | 2025-05-07 |
| JPWO2024004457A1 (ja) | 2024-01-04 |
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Legal Events
| Date | Code | Title | Description |
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