EP4673701A1 - Systeme et dispositif de regulation de composants electroniques - Google Patents
Systeme et dispositif de regulation de composants electroniquesInfo
- Publication number
- EP4673701A1 EP4673701A1 EP24708991.5A EP24708991A EP4673701A1 EP 4673701 A1 EP4673701 A1 EP 4673701A1 EP 24708991 A EP24708991 A EP 24708991A EP 4673701 A1 EP4673701 A1 EP 4673701A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channels
- upper plate
- component
- thermal
- contact
- 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
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20872—Liquid coolant without phase change
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0256—Arrangements for coupling connectors with flow lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
Definitions
- processors system on a chip (SoC) in English
- SoC system on a chip
- the subject of the invention relates to a thermal regulation device for components whose operation is sensitive to temperature, these components being in particular electronic components, in particular power components, capable of heating, said device comprising an upper plate and a lower plate assembled with the upper plate to form together a plurality of circulation channels, said channels extending mainly along a longitudinal axis, for a heat transfer fluid, in particular a refrigerant fluid, the upper plate of the cooling device being configured to be in thermal contact with the component,
- the device comprising in at least part of the circulation channels configured to face the component, at least one disruptive element, extending only partially over the length of said channels of the plate along the main longitudinal axis of extension of the channels, the device being characterized in that the surface of the disruptive elements of the device are configured to have, with respect to the surface of the component in contact with the upper plate of the device, a surface ratio of between 15 and 60, preferably between 15 and 36.
- surface area of the disturbing elements is understood to mean the sum of the surfaces of each disturbing element in contact with the fluid.
- surface area of both faces of the fins is taken into account.
- surface of the component means the surface in contact with the cooling device, in particular the surface of the thermal interface of the component.
- Vis-à-vis means overlapping zones when they are observed along an axis perpendicular to these zones.
- said disruptive elements extend over the entire width of the plate along an axis transverse to the longitudinal axis of the channels.
- said disturbing elements extend between the two longitudinal walls of a channel, said walls extending along the longitudinal axis.
- the channels which comprise disturbing elements each comprise a disturbing element in the form of a fin-type corrugated plate.
- the fins are chosen from smooth, perforated, chevron, louvered or serrated fins.
- the fins are configured to extend over a length of between 95% and 130% of the length of the surface of the component in contact with the device along the longitudinal axis.
- the fins are preferably centered longitudinally relative to the component.
- the fins are configured to be opposite at least 95% of the projected surface of the component opposite the channels, preferably 100%.
- the surface of the component opposite the channels sees the facing fins over at least 95% of its length, preferably 100%.
- the fins are then not centered longitudinally relative to the component, and may overflow particularly or only on one side.
- the fins extend between the lower plate and the upper plate over the entire height of the channels.
- the fins have a pitch between each corrugation of between 0.4 mm and 1.5 mm, preferably 1 mm.
- Laterally offset fins are also called “roll offset” in English.
- the surface ratio is between 16 and 35 and the at least one disruptive element is in the form of a corrugated plate of the louvered fin type.
- the device comprises two fluid circulation channels, the two channels being configured to be in thermal contact with the component, each channel comprising a fin-type disruptive element.
- the two channels form forward and return passes from a fluid circulation inlet conduit and to a fluid circulation outlet conduit, one channel forms the forward pass and one channel forms the return pass, the two channels being connected together by a turnaround portion forming a U-shaped fluid circulation.
- the device comprises three fluid circulation channels. [0030] According to one aspect of the invention, the three channels being configured to be in thermal contact with the component, each channel comprising a fin-type disruptive element.
- the 3 channels form forward and return passes from a fluid circulation inlet conduit and to a fluid circulation outlet conduit, one channel forms the forward pass and two channels form the return pass, all of the channels forming a U-shaped fluid circulation.
- the 3 channels form forward and return passes from a fluid circulation inlet conduit and to a fluid circulation outlet conduit, two channels form the forward pass and one channel forms the return pass, all of the channels forming a U-shaped fluid circulation.
- the invention also relates to a system comprising an electronic device as described above, and at least one element to be regulated, the element comprising at least one component capable of heating and a thermal interface in contact between said component and the upper plate of the device, the surface ratio being calculated between the surface of the thermal interface in contact with the upper plate with respect to the surface of the disturbing elements.
- the invention relates to an electronic system comprising a thermal regulation device for at least one component capable of heating, the component comprising at least one element to be regulated, and in particular an intermediate heat-diffusing element, and a thermal interface in contact between said element to be regulated or the intermediate element and the device, said device (x) comprising an upper plate and a lower plate assembled with the upper plate to form together a plurality of circulation channels (21), said channels extending mainly along a longitudinal axis, for a heat transfer fluid, in particular a refrigerant fluid, the upper plate of the cooling device being configured to be in thermal contact with the thermal interface of the element, the device comprising in at least part of the circulation channels configured to be opposite the element, at least one disturbing element, extending only partially over the length of said channels of the plate along the main longitudinal axis of extension of the channels, the device being characterized in that the surface of the disturbing elements of the device are configured to have, with respect to the surface of the component in contact with the upper plate of the device, a
- the thermal interface (301) comprises at least one layer in contact with the upper plate of the device composed of indium and having a thickness between 0.3 and 0.5 mm.
- the thermal interface comprises several layers, the layer in contact with the upper plate of the device being made of indium and having a thickness between 0.3 and 0.5 mm.
- the thermal interface has a thermal resistance ratio of less than 6% of the total thermal resistance between the thermal interface and the heat transfer fluid, in particular a ratio of between 2 and 5.5%, preferably between 2.2% and 5%, more preferably between 2.2% and 2.7% of the total thermal resistance between the thermal interface and the heat transfer fluid.
- Figure 1 schematically shows a prior art device viewed from above
- Figure 2 schematically shows a device according to a first embodiment in top view
- Figure 3 schematically shows a device according to the first embodiment in sectional view
- Figure 4 schematically shows a device according to a second embodiment in a side view
- Figure 5 schematically shows a system according to a first embodiment in a perspective view
- Figure 6 schematically shows a system according to the first embodiment in an exploded view
- Figure 1 shows an example of a device according to the prior art.
- the device 210 comprises a first fluid channel 213 for guiding the heat exchange fluid through the device between the two plates.
- the device comprises fluid openings 250 for introducing and discharging the heat transfer fluid.
- the first fluid channel 213 forms a U-shaped flow path having a first arm 214 and a second arm 215.
- the fluid openings 250 may be disposed at opposite ends of the U-shaped flow path.
- the device 210 may comprise a plurality of channels (216, 217, 218), separated by ribs (253, 254) formed on one of the plates, preferably the lower plate, for example by stamping.
- the device may be attached to the system 100 by a support plate 202.
- Figure 2 shows the device according to a non-limiting example of the invention, with disturbing elements under the component to be cooled such as an element to be regulated, comprising in particular an intermediate heat diffusing element, such as a copper insert, and the thermal interface.
- disturbing elements under the component to be cooled such as an element to be regulated
- an intermediate heat diffusing element such as a copper insert
- the element to be regulated comprises in particular a high-power electronic element, such as a processor, an insulator such as indium, and a heat-diffusing element such as a copper insert.
- This assembly may itself be in contact with the cooling device.
- a Cartesian reference is formed (o, x, y, z), and the direction o-x is defined as being the length direction, o-y is the height direction, and o-z is the width direction, as shown in FIG. 5.
- the heat transfer fluid may be a refrigerant (such as R134A, R-1234YF or R744) or a coolant-type refrigerant (e.g., a water-glycol mixture).
- a refrigerant such as R134A, R-1234YF or R744
- a coolant-type refrigerant e.g., a water-glycol mixture
- the element to be thermally regulated is located on a first heat source module 410 which is a printed circuit board.
- the electronic system further comprises a chassis on which the control device and the first heat source module are attached.
- Figure 3 shows a sectional view of the device 200 of Figure 2.
- a disturbing element 270 intended to improve the efficiency of the heat exchange is placed inside the fluid channels 213 opposite the element to be thermally regulated 300 which is in thermal contact with the upper plate 211, via a thermal interface 301.
- the component to be cooled is only opposite two of the 3 channels of the device according to the invention.
- these two facing channels each comprise a fluid-disrupting element.
- thermal interface 301 comprises indium.
- thermal interface 301 comprises a copper layer and an indium layer.
- the element to be regulated comprises an intermediate heat diffusing element formed of at least one layer of copper, for example forming a copper insert.
- the copper layer has strong thermal conduction, which advantageously makes it possible to standardize the temperature released by the element to be cooled over a surface area greater than that of the element to be cooled.
- the indium layer has the advantage of electrically insulating the element to be cooled while exhibiting relatively good thermal conduction. It is advantageously more malleable than copper, which allows better contact with the upper face of the device, thus acting as a thermal paste. This makes it possible in particular to manage different heights of components to be cooled.
- Figure 4 shows two control devices 200 in a side view.
- the control device 210 and the control device 220 may be connected by interconnectors 260 to mechanically attach to each other and allow heat transfer fluid to flow between them.
- interconnectors 260 there are two interconnectors 260.
- One of the interconnectors 260 may be associated with the introduction of the heat transfer fluid into the primary tube 210 and the terminal tube 220, while the other interconnector 260 may be associated with the outlet of the heat transfer fluid from the control device 210 and the control device 220.
- An inlet nozzle 251 may be attached to the device 210 and communicate with the interconnector 260 to introduce the heat transfer fluid into the device 210.
- An outlet nozzle 252 may be attached to the device 210 and communicate with the interconnector 260 to evacuate the heat transfer fluid from the device 210.
- the device 210 may comprise collars for receiving the inlet and outlet tips 251, 252, in particular flat tube collars 261 located on the device 210, which in this case would be opposite the inlet and outlet tips 251, 252.
- the device 210 and the device 220 may include collars for receiving the interconnectors 260.
- FIG. 5 shows an electronic system 100 with a plurality of heat source modules 410, 420, 430, 440 in a perspective view.
- the control device 200 includes a device 210 for a heat transfer fluid.
- the heat transfer fluid circulates through the control device 210, and allows heat exchange between the control device 210 and any heat source in contact with it.
- the system comprises two control devices 210 and 220, but there may be only one or a plurality, depending on the cooling needs.
- the two control devices 210 and 220 are connected by interconnectors 260.
- Figure 6 shows a system 100 of Figure 1 in an exploded view.
- the first heat source module 410 comprises at least one thermally regulated element 411.
- the first heat source module 410 comprises a plurality of thermally regulated elements 411.
- the first heat source module 410 is a printed circuit board.
- the elements to be thermally regulated 411 may be individual integrated circuits.
- the second heat source module 420 comprises at least one thermally regulated element 421.
- the second heat source module 420 is in the form of a cartridge 422, in which there is a printed circuit board comprising at least one integrated circuit.
- the third heat source module 430 comprises at least one thermally regulated element 431.
- the third heat source module 430 comprises a plurality of thermally regulated elements 431.
- the fourth heat source module 440 comprises at least one fourth heat source 441.
- the fourth heat source module 440 is in the form of a cartridge 422 in which there is located a PCB board with at least one integrated circuit.
- the present invention particularly relates to the cooling of power electronic components, having a very high thermal power, for example between 100W and 1KW, over a very small surface area, for example of the order of ten mm2, for example 12x12mm or 65x65mm.
- the element to be regulated, and/or the intermediate heat diffusing element can easily reach a temperature close to 100°C.
- the heat transfer fluid has a temperature at the inlet of the cooling device of between 60°C and 65°C, the heat transfer fluid coming in particular for example from a circuit cooled by a low temperature radiator rather than by an air conditioning loop as can be found in battery cooling applications.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2301947A FR3146371B1 (fr) | 2023-03-02 | 2023-03-02 | Système et dispositif de régulation de composants électroniques |
| PCT/EP2024/055126 WO2024180141A1 (fr) | 2023-03-02 | 2024-02-28 | Systeme et dispositif de regulation de composants electroniques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4673701A1 true EP4673701A1 (fr) | 2026-01-07 |
Family
ID=86942071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24708991.5A Pending EP4673701A1 (fr) | 2023-03-02 | 2024-02-28 | Systeme et dispositif de regulation de composants electroniques |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4673701A1 (fr) |
| CN (1) | CN120659963A (fr) |
| FR (1) | FR3146371B1 (fr) |
| WO (1) | WO2024180141A1 (fr) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11525638B2 (en) * | 2020-10-19 | 2022-12-13 | Dana Canada Corporation | High-performance heat exchanger with calibrated bypass |
-
2023
- 2023-03-02 FR FR2301947A patent/FR3146371B1/fr active Active
-
2024
- 2024-02-28 EP EP24708991.5A patent/EP4673701A1/fr active Pending
- 2024-02-28 WO PCT/EP2024/055126 patent/WO2024180141A1/fr not_active Ceased
- 2024-02-28 CN CN202480013556.6A patent/CN120659963A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024180141A1 (fr) | 2024-09-06 |
| FR3146371A1 (fr) | 2024-09-06 |
| FR3146371B1 (fr) | 2025-02-21 |
| CN120659963A (zh) | 2025-09-16 |
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Legal Events
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20250715 |
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| AK | Designated contracting states |
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Owner name: VALEO ELECTRIFICATION |