EP4026409A1 - Couvercle en plastique de fermeture d'un circuit de refroidissement a fluide, pour un equipement electrique - Google Patents
Couvercle en plastique de fermeture d'un circuit de refroidissement a fluide, pour un equipement electriqueInfo
- Publication number
- EP4026409A1 EP4026409A1 EP20761296.1A EP20761296A EP4026409A1 EP 4026409 A1 EP4026409 A1 EP 4026409A1 EP 20761296 A EP20761296 A EP 20761296A EP 4026409 A1 EP4026409 A1 EP 4026409A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- cooling circuit
- fluid
- ribs
- electrical equipment
- 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.)
- Pending
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
-
- 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
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- 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
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20872—Liquid coolant without phase change
Definitions
- the present invention relates to the field of electrical equipment, in particular for vehicles, in particular for electric or hybrid vehicles. More specifically, the present invention relates to a cover for a fluid cooling circuit for electrical equipment, in particular for a DC / DC converter, electric charger or inverter, in particular for a vehicle.
- certain electrical components are cooled by the circulation of a fluid from cooling, for example a mixture of water and glycol, or even oil, in a cooling circuit arranged in a part of the chassis of the electrical equipment.
- the cooling circuit is generally configured to route the cooling fluid near the electrical components or other elements to be cooled, such as electronic boards for example.
- the cooling circuit is closed by a closing cover.
- the chassis and the closing cover in particular for a DC / DC converter, an electric charger or an inverter, in particular for vehicles, are most often made of aluminum.
- such a cooling circuit can be formed from two complementary parts.
- a frame and a cover of an electrical equipment include complementary cooling circuit portions.
- Said complementary portions comprise channels, hollow parts or protruding parts, so that the cooling circuit obtained by assembly can in particular extend in a “three-dimensional” manner, in the sense that the path followed by the cooling fluid undergoes direction changes in three non-coplanar directions.
- the circulation channel then comprises successive levels at different levels.
- “Spigots” are also provided to form inlets / outlets for cooling fluid in the cooling circuit.
- the term “spigot”, in English, is well known to those skilled in the art. This term denotes a valve or a tube, or more generally a fluid nozzle, generally male, allowing the passage of fluid and forming an inlet or an outlet of an integrated circuit in a housing. Usually associated with a gasket, the spigots thus allow the entry or exit of a fluid vis-à-vis an integrated circuit in a chassis of electrical equipment.
- the term “spigot” corresponds here to a “fluid nozzle” which makes it possible to connect the cooling circuit to pipes conveying the cooling fluid. Sealing at the junction between water fittings and said pipes can be achieved in several ways, either by the use of gaskets, or by tightening a collar on the pipe around said water nozzle.
- the spigots are separate mechanical elements, attached to the frame in the continuity of channels emerging from the cooling circuit, to form cooling fluid inlets / outlets. These spigots cooperate with gaskets, at the interface between the inside of the cooling system and the outside of the chassis in which they are installed, to ensure the tightness of the electrical equipment.
- the assembly operates in an environment in which the temperatures reach in particular - 40 ° C or even + 105 ° C and the cooling fluid flow rates are high, in particular greater than 8 l / s.
- the voltages can in particular exceed 400 V and the current intensities exceed 800 A.
- the temperatures of the cooling fluid are notably included in a range going from - 40 ° C to + 80 ° C.
- the fluid circulation channels of the cooling circuit must keep their form factor, which is complicated by the constraints in terms of temperature and in terms of mechanical stresses. Given the flow rates of the cooling fluid used, sealing is also difficult to guarantee.
- the invention relates to the use of a cover for closing a cooling circuit of an electrical equipment which is made of plastic, obtained by molding, the chassis of the electrical equipment, in which the fluid cooling circuit is arranged, being made of another material, in particular aluminum or cast iron.
- the spigots can be molded together or overmolded with the plastic closure cover.
- the invention relates to a closing cover of a fluid cooling circuit for electrical equipment, in particular of a motor vehicle, said closure cover being made of plastic and being configured to close, in covering it, a channel for circulating coolant from said cooling circuit.
- the present invention allows in particular to achieve a less expensive closing cover, being obtained by a plastic injection process rather than by an injection process aluminum, in particular.
- the closure cover according to the invention is also lighter and makes it possible to perform, depending on the embodiment chosen, several functions - sealing, inlet / outlet of cooling fluid, etc. - Via a reduced number of parts, in particular by means of a single part, namely said closing cover.
- said closure cover has a water side face and an opposite face, the opposite face having an arrangement of ribs configured to mechanically reinforce portions of the cooling circuit.
- said closing cover has a thickness which is defined as a function of ranges of predefined values respectively for the pressure and for the temperature of the cooling fluid intended to circulate in the cooling fluid circulation channel .
- said ribs have a thickness of between 0.3 times and 1 times the thickness of the closing cover.
- portions of the closing cover intended to be mechanically fixed to the frame, on either side of the cooling fluid circulation channel are connected by first ribs, second ribs, substantially transverse to said first ribs, connecting said first ribs to an edge of the closure cover, on each side of said first ribs, respectively.
- the closing cover further incorporates at least one inlet fluid nozzle and / or outlet for cooling fluid.
- said at least one fluid inlet and / or outlet for cooling fluid is molded in the mass of the closing cover, forming a single homogeneous piece of material.
- said at least one cooling fluid inlet or outlet fluid nozzle is formed of a mechanical element, in particular made of metal, integrated into the closure cover by overmolding.
- the closing cover further comprises at least two fluid inlet and / or outlet fluid nozzles including a cooling fluid inlet nozzle of the cooling circuit and a cooling fluid outlet nozzle of the cooling circuit.
- the closing cover further comprises at least one metal insert, of which at least one plate having a function of heat sink or at least one threaded hollow barrel intended to receive a fixing screw of the cover of closing.
- the invention also relates to electrical equipment, comprising a frame, in particular made of aluminum or cast iron, in the mass of which is arranged a cooling fluid circulation channel forming a fluid cooling circuit, said electrical equipment comprising a cover for closing the fluid cooling circuit as briefly described above.
- said electrical equipment is a DC / DC voltage converter or an inverter or an electrical charger.
- said cooling fluid circulation channel is arranged in the frame.
- the closure cover has a thickness of between 2 mm and 4 mm, in particular equal to approximately 3.5 mm, and the cooling fluid circulation channel has a section having an approximately equal area to 200 mm 2 , in which the cooling fluid is intended to circulate at a pressure of approximately 3.5 bars absolute and at a temperature between - 40 ° C and + 80 ° C.
- the cooling circuit comprises a first portion and a second portion, said first and second portions of the cooling circuit being complementary and being formed respectively in the frame and in the closing cover, said first portion comprising at least one hollow part and said second portion comprising at least one protruding part, said hollow and protruding parts being configured to fit into each other so as to form bearings of the cooling circuit located at different levels arranged successively one after the other along said cooling circuit.
- said at least one hollow part and said at least one protruding part are configured to fit into each other thanks to a functional clearance allowing the nesting of said hollow parts and in protrusion.
- FIG. 1 is a schematic representation of a frame of electrical equipment, intended to receive a closing cover according to the invention
- FIG. 2 is a schematic representation of an electrical equipment consisting of a frame as shown in Figure 1 and an example of a closing cover according to the invention
- FIG. 3 is a schematic representation of an example of a closing cover according to the invention, seen from its face opposite the cooling fluid;
- FIG. 4 is a schematic representation of the same example of a closing cover according to the invention, seen from its face on the cooling fluid side;
- FIG. 5 is a schematic representation of the same example of a closing cover according to the invention, seen in profile.
- Figure 1 shows a frame 20 of electrical equipment, in which is arranged, in the form of a cooling fluid circulation channel 130, a fluid cooling circuit 130.
- This frame 20 is intended for receive a cover for closing the fluid cooling circuit 130.
- FIG 2 shows an electrical equipment 30, in particular a DC / DC voltage converter or an inverter or an electric charger, for example for an electric or hybrid vehicle, comprising a frame 2 as shown in Figure 1 and a cover closure 10 of the cooling circuit, in accordance with an exemplary embodiment of the invention.
- said closure cover 10 is made of plastic, in particular PA66GF30, the frame 20 being made of a different material, in particular aluminum for example.
- the plastic used to make the closure cover 10 is suitable for withstanding the mechanical and environmental stresses (high or low temperatures, high pressure, chemical environment) expected in particular in the context of use in high voltage electrical equipment of a vehicle. electric or hybrid.
- the plastic material used can be reinforced with glass fibers to reinforce the qualities of mechanical strength, the glass fibers providing a physical binder function.
- the closure cover 10 is made of plastic injection molded by plastic.
- the closing cover 10 has a cooling fluid side face 101, comprising a portion of the cooling circuit channel forming the top 131 of the cooling circuit.
- the closing cover 10 has a face 102 opposite the cooling circuit.
- the opposite face 102 comprises an arrangement of reinforcing ribs 11 A, 11 B, formed in the mass of the closure cover 10.
- the thickness of the closure cover 10 can be constant and corresponds in particular to the thickness of the material constituting said closure cover 10.
- the thickness of the closure cover 10 is defined as the distance between the face on the cooling fluid side 101 and the opposite face 102 of the closure cover 10.
- the thickness of the cover closure 10 can be between 2 mm and 4 mm to withstand a pressure of the cooling fluid circulating in the cooling fluid circulation channel 130 of up to 3.5 bars absolute and a temperature between - 40 ° C and + 80 ° C.
- the thickness of the closing cover 10 can also depend on the geometry of the coolant circulation channel, that is to say on the area of its section, which corresponds to the product of its width by s in height.
- the ribs 11 A, 11 B have for example a height of between 2 mm and 30 mm and a width of between 0.3 times and 1 times the thickness of the closure cover 10, ie between approximately 1 mm and 3 , 5 mm for a closing cover having a thickness of 3.5 mm.
- the arrangement of the ribs 11 A, 11 B is provided to strengthen sensitive portions of the cooling circuit, in particular parts where there is a change in direction of the coolant or extended flat portions of the cooling circuit.
- the sizing and the arrangement of the ribs 11 A, 11 B are configured to avoid deformation of the cooling circuit, in particular under the pressure induced by the flow of cooling fluid in said cooling circuit.
- the ribs 11 A, 11 B are adapted to prevent the deformation of portions of the cooling circuit where coolant flows.
- the ribs 11 A, 11 B are thus provided to improve the mechanical strength of the closure cover 10, while preserving or even reducing its mass.
- the ribs 11 A, 11 B can be arranged such that portions of the closing cover 10 which are mechanically fixed to the frame, on either side of the cooling fluid circulation channel 130, are connected by first ribs 11A; furthermore, second ribs 11B, transverse to these first ribs 11A, connect said first ribs 11A to an edge of the closure cover 10, on each side of said first ribs 11A, respectively, to limit the deformation of the circulation channel of coolant 130.
- the arrangement of ribs 11 A, 11 B is thus configured to ensure the conservation of the form factor of the cooling fluid circulation channel 130, including under very restrictive temperature and pressure conditions, in particular under a pressure of approximately 3.5 bars absolute and at an external environment temperature between - 40 ° C and + 105 ° C.
- the second ribs 11B and the first ribs 11A can form between them an angle of between 20 ° and 90 °.
- the closing cover 10 is provided to close a cooling circuit of electrical equipment, in particular, for example, of an inverter, of a DC / DC converter or an electric charger for a motor vehicle.
- the cooling fluid which circulates in the cooling fluid circulation channel 130 has for example a pressure of 3.5 bars absolute and a temperature between - 40 ° C and + 150 ° C.
- the section of the cooling fluid circulation channel 130 may have a section of about 200 mm 2 , preferably constant.
- the coolant circulation channel may have a width of 31 mm and a height of 6.3 mm.
- the thickness of the cover may be approximately equal to 3.5 mm, the thickness of the ribs, preferably between 0.3 times and 1 times the thickness of the closing cover 10, is between about 1mm and 3.5mm.
- the side of the cooling fluid 101 also includes a groove 101 A allowing the installation of a seal.
- an aluminum closure cover is also preferably used.
- a single material makes it possible, for example, to use a joint-glue-type seal, ensuring that the glue will adhere correctly both to the chassis side and to the closing cover side.
- a plastic is used having a coefficient of thermal expansion, in the intended service temperature range, similar to that of aluminum, if the frame is made of aluminum.
- a gasket capable of ensuring the seal between the separate materials used, in particular aluminum on the one hand and a plastic type PA66GF30 on the other hand, is used. It is specified that different types of sealing gaskets can be used, in particular an adhesive joint type Fl PG OR Cl PG, a metal gasket or a rubber gasket, for example made of EPDM.
- an advantage of the invention also resides in the fact that, according to one embodiment, corresponding to that shown in Figures 2 to 5, the spigots 12 are integrated into the closure cover 10.
- said spigots 12 are, according to a preferred embodiment, formed in the mass of the cover 10, thus being molded, in particular by plastic injection, at the same time as the closure cover 10 as a whole, in particular in a single molding operation.
- the spigots 12 can be formed of end pieces, in particular made of metal, integrated into the closure cover 10 by overmolding.
- the integration of the spigots 12 in the closing cover 130 also makes it possible to obtain an improved fluidity of the circulation of the cooling fluid at the level of the inlet and the outlet in the cooling circuit, via such spigots 12. As the cooling fluid circulation characteristics are consequently improved, said cooling fluid circulation consumes less energy, that is to say it allows better thermal dissipation of the heat produced by the components. electric to cool.
- the present invention makes it possible to reduce the number of operations for mounting an electrical equipment 30.
- the integration of the spigots 12 in the closing cover 130 also improves the sealing of the electrical equipment 30.
- the integration of the spigots 12 in the closure cover 10 reduces the number of machining operations on the frame 20 because it becomes unnecessary to machine a docking hole of the spigots or performing a rectification of the surface state of the frame in a docking zone of said spigots on a portion intended to receive a respective seal associated with said spigots.
- the spigots 12 are made in the mass of the closure cover 130, during the same molding operation, the tightness is in fact natively guaranteed.
- the closure cover 130 is suitable for closing a "three-dimensional" cooling fluid circulation channel 130.
- the frame 20 and the closure cover 10 can be configured such that said frame 20 and the closure cover 10 comprise complementary cooling circuit portions.
- Said complementary portions comprise hollow parts 133 or projecting parts 132, so that the cooling circuit obtained by assembly can in particular extend in a “three-dimensional” manner.
- the cooling channel then comprises successive stages at different levels, of way, for example, to cool the electrical components themselves arranged in the chassis at different levels.
- the closure cover 10 thus comprises a projecting portion 132 and, in Figure 1, the frame 20 comprises a hollow portion 133, forming a stall in the cooling circuit, in other words a bearing of the cooling circuit located at a different level from the rest of the cooling circuit, so as to cool electrical components arranged at different levels in the frame 20.
- said hollow 133 and protruding 132 parts fit into one another. the other thanks to a functional game.
- the closure cover 10 can furthermore comprise at least one insert, in particular metallic.
- said metal insert may be a plate having a heat sink function and be integrated into said closure cover 10 by overmolding.
- the closure cover can include several such plates.
- said metal insert may be at least one threaded hollow barrel intended to receive a fixing screw of the closing cover 10.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1909842A FR3100671A1 (fr) | 2019-09-06 | 2019-09-06 | Couvercle en plastique de fermeture d’un circuit de refroidissement à fluide, pour un équipement électrique |
| PCT/EP2020/074243 WO2021043725A1 (fr) | 2019-09-06 | 2020-08-31 | Couvercle en plastique de fermeture d'un circuit de refroidissement a fluide, pour un equipement electrique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4026409A1 true EP4026409A1 (fr) | 2022-07-13 |
Family
ID=69375427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20761296.1A Pending EP4026409A1 (fr) | 2019-09-06 | 2020-08-31 | Couvercle en plastique de fermeture d'un circuit de refroidissement a fluide, pour un equipement electrique |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12342511B2 (fr) |
| EP (1) | EP4026409A1 (fr) |
| CN (1) | CN114667808A (fr) |
| FR (1) | FR3100671A1 (fr) |
| WO (1) | WO2021043725A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12543298B1 (en) * | 2023-01-31 | 2026-02-03 | Zoox, Inc. | Composite power electronics cover |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6166937A (en) * | 1998-06-02 | 2000-12-26 | Hitachi Ltd. | Inverter device with cooling arrangement therefor |
| EP2179895B1 (fr) * | 2008-10-24 | 2011-09-28 | Harman Becker Automotive Systems GmbH | Système électronique de véhicule avec refroidissement de fluide |
| US20130235527A1 (en) * | 2012-03-06 | 2013-09-12 | Mission Motor Company | Power electronic system and method of assembly |
| US20160021796A1 (en) * | 2007-03-20 | 2016-01-21 | Conti Temic Microelectronic Gmbh | Control appliance for using in the engine compartment or in the transmission of a motor vehicle and cooling sysem for such a control appliance |
| US20170102194A1 (en) * | 2015-10-13 | 2017-04-13 | Caterpillar Inc. | Sealless cooling device having manifold and turbulator |
| US20170181332A1 (en) * | 2015-12-18 | 2017-06-22 | Siemens Aktiengesellschaft | Liquid-cooled electric drive component, powertrain, vehicle and method |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5841634A (en) * | 1997-03-12 | 1998-11-24 | Delco Electronics Corporation | Liquid-cooled baffle series/parallel heat sink |
| JP3730968B2 (ja) * | 2003-03-26 | 2006-01-05 | Tdk株式会社 | スイッチング電源 |
| DE10317705A1 (de) * | 2003-04-17 | 2004-10-28 | Robert Bosch Gmbh | Gehäuse mit Kühlung für elektronische Steuergeräte, insbesondere in Kfz |
| US20060254755A1 (en) * | 2005-05-12 | 2006-11-16 | Win-Haw Chen | Radiation board |
| US7291036B1 (en) * | 2006-11-08 | 2007-11-06 | Tyco Electronics Corporation | Photovoltaic connection system |
| DE102007022517B4 (de) * | 2007-05-14 | 2010-06-02 | Continental Automotive Gmbh | Wärmetauscher zur Kühlung einer elektronischen Baugruppe |
| JP2010171279A (ja) * | 2009-01-23 | 2010-08-05 | Toyota Motor Corp | 放熱装置 |
| DE102010032078B4 (de) * | 2010-07-23 | 2012-02-16 | Siemens Aktiengesellschaft | Leistungselektronik-Baueinheit für eine Magnetresonanzeinrichtung und Magnetresonanzeinrichtung |
| JP5885392B2 (ja) * | 2011-03-25 | 2016-03-15 | 矢崎総業株式会社 | 電気接続箱 |
| EP2608309A1 (fr) * | 2011-12-21 | 2013-06-26 | Fortu Intellectual Property AG | Module de batterie doté d'un boîtier de module de batterie et de cellules de batterie |
| US8699225B2 (en) * | 2012-03-28 | 2014-04-15 | Delphi Technologies, Inc. | Liquid cooled electronics assembly suitable to use electrically conductive coolant |
| KR20140006392A (ko) * | 2012-07-05 | 2014-01-16 | 엘에스산전 주식회사 | 자동차용 전장부품 박스 |
| CN104334003A (zh) | 2014-11-06 | 2015-02-04 | 广州高澜节能技术股份有限公司 | 一种具有扰流交错台阶直流道水冷板 |
| KR102202419B1 (ko) * | 2015-04-17 | 2021-01-13 | 한온시스템 주식회사 | 전동 압축기 |
| JP6141538B2 (ja) * | 2015-04-20 | 2017-06-07 | 三菱電機株式会社 | 異物除去装置、循環システム及び車両用冷却システム |
| EP3352216B1 (fr) * | 2015-09-18 | 2021-11-10 | T.RAD Co., Ltd. | Dissipateur thermique type stratifié |
| KR102458738B1 (ko) * | 2015-11-11 | 2022-10-25 | 현대모비스 주식회사 | 커패시터 직접냉각방식의 인버터 |
| KR102406163B1 (ko) | 2016-11-04 | 2022-06-07 | 현대자동차주식회사 | 자동차의 오일쿨러 |
| JP7055800B2 (ja) * | 2016-11-17 | 2022-04-18 | エルジー イノテック カンパニー リミテッド | 直流-直流コンバータ |
| DE102018206944A1 (de) * | 2018-05-04 | 2019-11-07 | Zf Friedrichshafen Ag | Verfahren zum Herstellen eines Stromrichtermoduls zum Einbau in ein Kraftfahrzeug und Stromrichtermodul zum Einbau in ein Kraftfahrzeug |
-
2019
- 2019-09-06 FR FR1909842A patent/FR3100671A1/fr active Pending
-
2020
- 2020-08-31 EP EP20761296.1A patent/EP4026409A1/fr active Pending
- 2020-08-31 CN CN202080069238.3A patent/CN114667808A/zh active Pending
- 2020-08-31 US US17/640,535 patent/US12342511B2/en active Active
- 2020-08-31 WO PCT/EP2020/074243 patent/WO2021043725A1/fr not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6166937A (en) * | 1998-06-02 | 2000-12-26 | Hitachi Ltd. | Inverter device with cooling arrangement therefor |
| US20160021796A1 (en) * | 2007-03-20 | 2016-01-21 | Conti Temic Microelectronic Gmbh | Control appliance for using in the engine compartment or in the transmission of a motor vehicle and cooling sysem for such a control appliance |
| EP2179895B1 (fr) * | 2008-10-24 | 2011-09-28 | Harman Becker Automotive Systems GmbH | Système électronique de véhicule avec refroidissement de fluide |
| US20130235527A1 (en) * | 2012-03-06 | 2013-09-12 | Mission Motor Company | Power electronic system and method of assembly |
| US20170102194A1 (en) * | 2015-10-13 | 2017-04-13 | Caterpillar Inc. | Sealless cooling device having manifold and turbulator |
| US20170181332A1 (en) * | 2015-12-18 | 2017-06-22 | Siemens Aktiengesellschaft | Liquid-cooled electric drive component, powertrain, vehicle and method |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2021043725A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US12342511B2 (en) | 2025-06-24 |
| FR3100671A1 (fr) | 2021-03-12 |
| US20220338391A1 (en) | 2022-10-20 |
| WO2021043725A1 (fr) | 2021-03-11 |
| CN114667808A (zh) | 2022-06-24 |
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