EP4129028A1 - Systeme electronique comportant un systeme de refroidissement d'un dispositif electrique - Google Patents
Systeme electronique comportant un systeme de refroidissement d'un dispositif electriqueInfo
- Publication number
- EP4129028A1 EP4129028A1 EP21713032.7A EP21713032A EP4129028A1 EP 4129028 A1 EP4129028 A1 EP 4129028A1 EP 21713032 A EP21713032 A EP 21713032A EP 4129028 A1 EP4129028 A1 EP 4129028A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electronic system
- cavity
- cooling
- housing
- electrical device
- 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.)
- Withdrawn
Links
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
Definitions
- the present invention relates to an electronic system comprising a cooling system for an electrical device.
- the invention also relates to a voltage converter comprising such an electronic system.
- the bottom of the housing comprises in its thickness a cooling fluid inlet nozzle 10, a cooling fluid outlet nozzle 20 and a cooling channel 30, a cooling fluid, for example of ethylene glycol, circulating in the cooling channel 30 from the inlet nozzle 10 to the outlet nozzle 20 so as to cool the electronic components.
- the coolant inlet and outlet nozzles are fixed.
- the aim of the invention is to alleviate at least part of this problem.
- an electronic system comprising: a. A box b.
- a cooling system for an electrical device comprising: i. a cavity formed in the bottom of the housing, the cavity comprising two independent orifices ii.
- a sealing wall delimits the volume of the cavity of the cooling system in which a cooling liquid circulates, the electrical device being disposed on a face of the sealing wall opposite to that in contact with the cooling liquid iii.
- a plug allowing one of the two openings to be closed iv.
- An interface element with independent cooling fluid inlet and outlet configured to fit over the unclosed port v.
- a separation element configured to create a coolant circulation channel between the inlet and the outlet
- Such an electronic system comprising a cooling system according to the invention makes it possible to obtain a changeable position of the inlet and the outlet of coolant according to the arrangement of the voltage converter in the vehicle.
- the cooling system according to the invention therefore makes it possible to simplify the cooling system and to obtain more flexibility in the integration of the voltage converter in the vehicle.
- the electronic system according to the first aspect of the invention may also have one or more of the characteristics of the particular embodiments below, considered individually or in any technically possible combination.
- the closure part comprises removable fixing means.
- the interface element comprises removable fixing means.
- the separation element extends at least in part between the interface element and the shutter piece
- the interface element comprises a protuberance so as to be in mechanical contact with the separation element
- the separation element comprises a flat part projecting transversely so as to be pressed against the wall
- the electrical device comprises at least one electronic component such as a galium nitride FET transistor, or a MOSFET transistor or an IGBT transistor
- the inlet and outlet of the interface element each comprise a tip forming an angle between 90 ° and 180 ° with respect to the axis of the channel. circulation of coolant.
- the invention also relates, according to a second aspect, to a voltage converter comprising an electronic system according to the first aspect of the invention.
- the voltage converter is a DC-DC voltage converter or an AC-DC voltage converter.
- FIG.1 shows a schematic view of an electronic system according to the prior art.
- FIG.2 shows a sectional view of the electronic system in a first embodiment of the invention.
- FIG.3 shows a top view of the electronic system in a first embodiment of the invention.
- the electronic system 1 according to a first embodiment of the invention will be described with reference to Figures 2 and 3.
- the electronic system 1 is for example used in a motor vehicle.
- the electronic system 1 comprises a housing 100, an electrical device 20 to be cooled.
- the electronic system 1 comprises a cooling system 300 intended to cool the electrical device 20.
- the electrical device 20 comprises for example one or more electronic switches 80 such as MOSFET or IGBT transistor forming part of a switching arm.
- the housing 100 is a rectangular parallelepiped comprising a bottom 110 surrounded by a first 111, a second 112, a third 113 and a fourth 114 wall.
- the bottom and the four walls of the housing 100 form an interior housing of the housing 100.
- the housing 100 is a metal housing, for example aluminum.
- the electronic system 1 comprises a housing 100 and the cooling device 300 comprises a cavity 130 which is formed in the bottom 110 of the housing 100 and thus forms a protuberance relative to the rest of the surface substantially flat of the bottom 110 of the housing 100.
- This cavity 130 has a parallelepipedal shape which extends between the first wall 111 and the second wall 112, the cavity opening out to the outside of the housing 100.
- the cavity 130 is produced without any discontinuity of material. with the bottom 110.
- the cooling system 300 comprises a cavity 130 which is formed in the thickness of the bottom 110 of the housing 100.
- the cavity 130 is machined in the thickness of the bottom 110, and extends between the first wall 111 and the second wall 112, the cavity opening out to the outside of the housing 100.
- the housing 100 and the cavity 130 can also be obtained by a pressure casting process (more commonly known as "HPDC, high pressure die casting” according to the English terminology) so as to obtain a housing comprising a cavity without discontinuity of matter.
- HPDC high pressure die casting
- the cooling system 300 comprises a sealing wall 115 disposed in the bottom 110 of the housing 100 coinciding with the cavity 130 so as to delimit the volume of the cavity 130 of the cooling system 300 in which a cooling liquid circulates .
- the sealing wall 115 comprises a fixing means so as to obtain a continuity of the flatness with the rest of the flat surface of the bottom 110.
- the sealing wall 115 has a face in contact with the cooling fluid. and its opposite face is in thermal contact with the electrical device 20.
- the sealing wall 115 also has sealing means. These sealing means comprise for example a seal between the sealing wall 115 and the bottom 110.
- the interior of the housing 100 and the cavity 130 are therefore hermetically separated, so there is no opening between. the cavity 130 and the interior of the housing 100 comprising the electrical device 20.
- the sealing wall 115 can be arranged in the bottom of the cavity 130 facing the outside of the housing 100. In this way, there is no discontinuity of material in the bottom of the housing 110.
- the sealing wall 115 makes it possible to delimit the cavity of the exterior of the housing 100. Sealing means such as a seal may be implemented between the cavity 130 and the sealing wall so as to avoid any opening between the cavity 130 and the exterior of the housing 100.
- the electrical device 20 is in thermal contact with the sealing wall via a thermal paste 85.
- the bottom of the housing 130 cooperates with the sealing wall 115 to form a first 140 and a second orifice 141.
- the first 140 and second orifice 141 form respectively in the first 111 and second wall 112 rectangular holes.
- the first 140 and second orifice 141 can obviously take other forms depending on the needs of the electronic system integration into the vehicle.
- the cooling system 300 also includes a sealing piece 50 and an interface element 60.
- the interface element 60 is configured to fit over the first port 140 and the sealing piece 50 is configured to fit on the second orifice 141.
- the interface element 60 and the closure part 50 are provided with removable fixing means.
- the interface element 60 is also configured to fit over the second port 141 and the shutter 50 is also configured to fit over the first port 140.
- the interface element 60 and the closure part 50 each comprise removable fixing means making it possible to be fixed on one or the other of the first 140 and second 141 orifices, so as to obtain the reversibility of the cooling system 300.
- the interface element 60 has an inlet 61 and an outlet 62 for coolant.
- the inlet 61 and the outlet 62 are through orifices made in the interface element 60 intended for the passage of the cooling fluid inside and then outside the cavity 130.
- the inlet 61 or the outlet 62 are shaped to receive a tip 64 allowing connection to the vehicle cooling loop.
- the interface element has a tip 64 on the inlet 61 and on the outlet 62.
- This tip 64 forms an angle with respect to the axis of the cooling channel.
- the nozzle 64 and the axis of the cooling channel form an angle of between 90 ° and 180 °.
- This tip 64 further improves the flexibility of use of the cooling system.
- This tip 64 is for example assembled with the inlet or the outlet by stamping.
- the interface element 60 is made of plastic.
- the interface element 60 can be metallic, for example aluminum.
- the closure part 50 also includes a sealing means such as a seal so as to create a sealed contact with one or the other of the first 140 and second 141 orifices.
- the closure part 50 is made of plastic.
- the closure part 50 may be metallic, for example aluminum.
- the cooling system 300 includes a separation element 65 is disposed in the cavity 130. This separation element 65 is arranged perpendicular to the bottom 130. The separation element 65 has a flat portion 66 projecting transversely. against the sealing wall 115 so as to create a sealed contact. The separation element 65 extends at least in part between the first wall 111 and the second wall 112 without being in mechanical contact with the closure part 50 or the interface element 60.
- the separation element 65 makes it possible to create a cooling fluid circulation channel between the inlet 61 and the outlet 62.
- the cooling fluid comes from the inlet 61, the flow of this fluid from cooling being directed by the separation element 65 and flows towards the outlet 62 through a passage defined between the separation element 65 and the closure part 50.
- the inlet 61 and outlet 62 are arranged on either side of the separation element 65.
- the separating element 65 when the cavity is formed in the thickness of the bottom 110 of the housing 100, the separating element 65 is formed in the thickness of the bottom 110 without any material discontinuity. In other words, the separation element 65 is machined in the thickness of the bottom 110. The separation element 65 extends at least in part between the first 111 and the second wall 112 without being in mechanical contact with it. the interface element 60 and the closure part 50.
- the interface element 60 comprises a protuberance 63 disposed between the inlet 61 and the outlet 62 and which extends until it is in mechanical contact with the separation element 65.
- This protuberance 63 thus makes it possible to avoid a direct circulation of cooling fluid between the inlet 61 and the outlet 62.
- the protuberance 63 improves the circulation of the cooling fluid in the cooling channel going from the inlet 61. towards exit 62.
- the electrical device 20 heats up and the temperature of the electronic switches increases.
- the thermal energy dissipated by the electrical device 20 is then drained to the cooling system via the thermal paste and then discharged to the outlet 62 of the cooling system 300.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2003071A FR3108825B1 (fr) | 2020-03-27 | 2020-03-27 | Système électronique comportant un système de refroidissement d’un dispositif électrique |
| PCT/EP2021/057394 WO2021191191A1 (fr) | 2020-03-27 | 2021-03-23 | Systeme electronique comportant un systeme de refroidissement d'un dispositif electrique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4129028A1 true EP4129028A1 (fr) | 2023-02-08 |
Family
ID=72266374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21713032.7A Withdrawn EP4129028A1 (fr) | 2020-03-27 | 2021-03-23 | Systeme electronique comportant un systeme de refroidissement d'un dispositif electrique |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4129028A1 (fr) |
| FR (1) | FR3108825B1 (fr) |
| WO (1) | WO2021191191A1 (fr) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006245479A (ja) * | 2005-03-07 | 2006-09-14 | Nichicon Corp | 電子部品冷却装置 |
| EP1961281B1 (fr) * | 2005-12-08 | 2009-10-14 | Sew-Eurodrive GmbH & Co. KG | Appareil, serie d'appareils, dispositif comprenant des parties de boitier, procede, utilisation d'un refroidisseur a air et utilisation d'un refroidisseur a liquide |
| US20120138281A1 (en) * | 2010-12-06 | 2012-06-07 | Transistor Devices, Inc. D/B/A Tdi Power | Heat Exchanger for Electronic Assemblies |
| JP2014079117A (ja) * | 2012-10-11 | 2014-05-01 | Mitsubishi Electric Corp | 車載用電力変換装置 |
| JP2014220452A (ja) * | 2013-05-10 | 2014-11-20 | 三菱電機株式会社 | 電子部品の冷却器 |
| KR20150121540A (ko) * | 2014-04-21 | 2015-10-29 | 정재욱 | 수냉식 방열판 실러 |
| US20160021784A1 (en) * | 2014-07-15 | 2016-01-21 | Caterpillar Inc. | Cooling Module for Electrical Components |
| JP2016076641A (ja) * | 2014-10-08 | 2016-05-12 | カルソニックカンセイ株式会社 | 半導体冷却装置 |
| JP2016076642A (ja) * | 2014-10-08 | 2016-05-12 | カルソニックカンセイ株式会社 | 半導体冷却装置 |
| EP3518413A1 (fr) * | 2016-09-20 | 2019-07-31 | Mitsubishi Electric Corporation | Dispositif de conversion de puissance |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009051864B4 (de) * | 2009-11-04 | 2023-07-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kühlvorrichtung für eine elektrische Einrichtung |
| CN105592665A (zh) * | 2014-10-24 | 2016-05-18 | 富瑞精密组件(昆山)有限公司 | 散热装置 |
| US10462941B2 (en) * | 2017-11-06 | 2019-10-29 | Caterpillar Inc. | Heat sink assembly |
| KR102099266B1 (ko) * | 2018-09-11 | 2020-04-08 | (주)새명산전 | Hvdc & statcom 전용 방열판 |
| CN109640601A (zh) * | 2019-01-31 | 2019-04-16 | 英特换热设备(浙江)有限公司 | 一种用介质冷却的散热器,以及具有该散热器的空调变频器、电子设备 |
-
2020
- 2020-03-27 FR FR2003071A patent/FR3108825B1/fr active Active
-
2021
- 2021-03-23 EP EP21713032.7A patent/EP4129028A1/fr not_active Withdrawn
- 2021-03-23 WO PCT/EP2021/057394 patent/WO2021191191A1/fr not_active Ceased
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006245479A (ja) * | 2005-03-07 | 2006-09-14 | Nichicon Corp | 電子部品冷却装置 |
| EP1961281B1 (fr) * | 2005-12-08 | 2009-10-14 | Sew-Eurodrive GmbH & Co. KG | Appareil, serie d'appareils, dispositif comprenant des parties de boitier, procede, utilisation d'un refroidisseur a air et utilisation d'un refroidisseur a liquide |
| US20120138281A1 (en) * | 2010-12-06 | 2012-06-07 | Transistor Devices, Inc. D/B/A Tdi Power | Heat Exchanger for Electronic Assemblies |
| JP2014079117A (ja) * | 2012-10-11 | 2014-05-01 | Mitsubishi Electric Corp | 車載用電力変換装置 |
| JP2014220452A (ja) * | 2013-05-10 | 2014-11-20 | 三菱電機株式会社 | 電子部品の冷却器 |
| KR20150121540A (ko) * | 2014-04-21 | 2015-10-29 | 정재욱 | 수냉식 방열판 실러 |
| US20160021784A1 (en) * | 2014-07-15 | 2016-01-21 | Caterpillar Inc. | Cooling Module for Electrical Components |
| JP2016076641A (ja) * | 2014-10-08 | 2016-05-12 | カルソニックカンセイ株式会社 | 半導体冷却装置 |
| JP2016076642A (ja) * | 2014-10-08 | 2016-05-12 | カルソニックカンセイ株式会社 | 半導体冷却装置 |
| EP3518413A1 (fr) * | 2016-09-20 | 2019-07-31 | Mitsubishi Electric Corporation | Dispositif de conversion de puissance |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2021191191A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3108825B1 (fr) | 2022-06-03 |
| WO2021191191A1 (fr) | 2021-09-30 |
| FR3108825A1 (fr) | 2021-10-01 |
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