EP4445088A1 - Échangeur thermique pour véhicule automobile - Google Patents
Échangeur thermique pour véhicule automobileInfo
- Publication number
- EP4445088A1 EP4445088A1 EP22823052.0A EP22823052A EP4445088A1 EP 4445088 A1 EP4445088 A1 EP 4445088A1 EP 22823052 A EP22823052 A EP 22823052A EP 4445088 A1 EP4445088 A1 EP 4445088A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- orifice
- fluid
- return passage
- edge
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
-
- 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
- F28F9/0202—Header boxes having their inner space divided by partitions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
Definitions
- the present invention relates to a heat exchanger for a motor vehicle.
- the vehicle can be land, sea or air.
- the present invention relates in particular to the field of heat exchangers, in particular intended to equip air conditioning systems and / or motor vehicle cooling systems. More particularly, the invention relates to systems for cooling electrical storage devices, in particular batteries, motor vehicles
- a heat exchanger comprising several elongated plates stacked on top of each other, between which cavities are formed. Two fluids circulate in the superimposed cavities - a cooling fluid and a fluid to be cooled - so that heat can be exchanged between the two fluids. Apertures are usually provided in the plates, which apertures coincide to form a total of four channels or chambers perpendicular to the stacked plates. Two of these channels are provided for supplying and discharging one fluid and two of these channels are provided for supplying and discharging the other fluid in the respective cavities. The cavities for the two fluids alternate in the heat exchanger and the channels are only fluidly connected to the corresponding cavities.
- Patent application DE102018206574A1 describes a plate heat exchanger which plans to replace the dip tube as an additional part by a channel which performs the same function, but which is formed by the plates themselves.
- the present invention aims to improve this known exchanger.
- the invention thus relates to a heat exchanger, in particular for a vehicle, comprising a plurality of plates, the plates being stacked on top of each other in a stacking direction to form a bundle of plates, at least a first plate and at least one second plate define a first circulation path configured for circulation of a first fluid, at least the second plate and at least one third plate define a second circulation path configured for circulation of a second fluid, the bundle of plates comprising a first distribution chamber configured to supply the first fluid to the first circulation path, characterized in that the first plate comprises a through hole surrounded by a plate, this hole being surrounded by an internal raised edge of the plate, this edge being of substantially annular shape so as to form, with the hole, a section of a dip channel arranged to conduct the first fluid towards the first distribution chamber, this plate further comprising an outer raised edge, the outer raised edge of the plate surrounding its internal raised edge, the plate further comprising, on its top, an orifice belonging to a return passage of the first circulation path, this orifice
- the stack of plates form a succession of dip channel sections which, together, form a complete dip channel.
- the present invention presents improvements on the aspect of the pressure drop because the plunge channel and/or the orifices of the return passage are not completely surrounded by an annular bead, this bead which results in a pressure drop not optimum.
- the present invention makes it possible to avoid having a multitude of holes around the dip channel, and provides, for each plate, a single return passage orifice. This also makes it possible to improve the pressure drop.
- a second distribution chamber configured to supply the second fluid to the second circulation path.
- the top of the plate is flat and the orifice of the return passage is also flat.
- the orifice of the return passage and the through hole of the first plate extend along two parallel planes spaced apart from each other by a non-zero height.
- the area of the through hole is smaller than the area of the orifice of the return passage.
- the area of the through hole is larger than the area of the orifice of the return passage.
- the area of the through hole is equal to the area of the orifice of the return passage.
- each first plate there is provided a single return passage orifice for the first fluid path.
- the return passage orifice has a shape which is opposite only a portion of the contour of the associated through-hole.
- the return passage orifice does not completely surround the through-hole.
- the dip channel is arranged to conduct the first fluid from a first fluid inlet to the distribution chamber which is substantially opposite the fluid inlet, in the direction of the stacking of the plates.
- the dip channel is formed by at least half of the stacked plates, in particular approximately 55% to 80% of the plates.
- the dip channel is formed by a succession of through holes and annular raised edges associated with these holes and aligned with each other.
- the second plate comprises a plate on the top of which is formed one of the through holes of the dip channel, and this plate of the second plate bears on the first plate so that the through holes of these two plates are aligned.
- Each through-hole is thus opposite a contact between two flat perforated areas of two neighboring plates.
- this flat area of the second plate is in contact with a plate of the neighboring plate, and the orifices of these neighboring plates are aligned with each other.
- the return passage of the first fluid and the dip channel extend in parallel.
- the return passage of the first fluid path extends at least partially around each through hole of the dip channel.
- the through hole has an outline substantially in the portion of a circle and optionally a straight edge.
- the through-hole has a substantially circular outline.
- the orifice of the return passage has an outline substantially in the portion of a circle and optionally a straight edge.
- the orifice of the return passage has a substantially circular contour.
- the orifice of the return passage has a crescent moon shape.
- the through hole and the orifice of the return passage each have an outline substantially in the form of a portion of a circle and a straight edge, the respective straight edges being parallel and facing one another. the other.
- the through hole has a circular outline and the return passage orifice has a crescent moon shape that partially surrounds the through hole.
- the first fluid path due to the return passage, has at least one reversal, so as to create a path with at least two passes.
- the first fluid path due to the return passage, has at least two reversals, so as to create a path with at least three passes.
- the heat exchanger according to the invention can be used in a cooling system, in particular for cooling the cells of an electric battery.
- the invention also relates to a plate for a heat exchanger, in particular for a vehicle, this plate being arranged to define, with an adjacent plate, a first circulation path configured for circulation of a first fluid, characterized in that the first plate comprises a through hole surrounded by a plate, this hole being surrounded by an internal raised edge of the plate, this edge being of substantially annular shape so as to form, with the hole, a section of a dip channel arranged to lead the first fluid to a first distribution chamber, this plate further comprising an external raised edge, the external raised edge of the plate surrounding its internal raised edge, the plate further comprising, on its top, an orifice belonging to a return passage of the first circulation path, this orifice being between the internal and external raised edges of the plate, the distance between the internal edge and the external edge of the tray having a widening in a region where the orifice is present.
- FIG. 1 a heat exchanger 1 for a motor vehicle, comprising a plurality of plates, the plates being stacked on top of each other in a stacking direction to form a bundle 2 of plates.
- a first plate 3 and a second plate 4 define a first circulation path 5 configured for circulation of a first fluid.
- the bundle 2 of plates comprises a first distribution chamber 9 configured to supply the first fluid to the first circulation path 5, and a second distribution chamber, not shown, configured to supply the second fluid to the second circulation path 7 .
- the first plate 3 has a through hole 10 surrounded by a plate 11, this hole 10 being surrounded by an internal raised edge 12 of the plate 11.
- This inner edge 12 is substantially annular in shape so as to form, with the hole 10, a section 14 of a dip channel 15 arranged to conduct the first fluid to the first distribution chamber 9, as shown in the figures 1 and 2.
- This tray 11 further comprises an outer raised edge 16, the outer raised edge 16 of the tray surrounding its inner raised edge 12.
- the plate 11 further comprises, on its top 17, an orifice 18 belonging to a return passage 19 of the first circulation path 5.
- This orifice 18 is between the internal 12 and external 16 raised edges of the plate 11, the distance between the internal edge 12 and the external edge 16 of the plate having a widening in a region 20 where the orifice 18 is present
- the orifice 18 of the return passage and the through hole 10 of the first plate 3 extend along two parallel planes spaced apart from each other by a non-zero height H.
- the area of the through holes 10 is smaller than the area of the orifices 18 of the return passage.
- each first plate 3 there is a single return passage orifice 18 for the first fluid path 5.
- the return passage orifice 18 has a shape which is opposite only a portion of the contour of the associated through-hole.
- the dip channel 15 is arranged to conduct the first fluid from a first fluid inlet 22 to the distribution chamber 9 which is substantially opposite the fluid inlet, in the direction of the stacking of the plates 3 and 4.
- the dip channel 15 is formed by at least half of the stacked plates, in particular by 55% to 80% of the stacked plates 3 and 4.
- Plates 3 and 5 are alternated, namely a plate 3 being between two plates 5 and so on.
- the dip channel 15 is formed by a succession of through holes 10 and annular raised edges 12 associated with these holes 10 and aligned with each other.
- the second plate 4 comprises a plate 24 on the top 17 of which is formed the through hole 10 of the dip channel 15, and this plate 24 of the second plate 4 bears on the first plate 3 so that the through holes 10 of these two plates are aligned.
- Each through hole 10 is opposite the contact of two perforated flat areas 25 and 26 of two adjacent plates 3 and 4.
- the orifice 18 of the return passage on the second plate 4 is formed on a flat area 28 of this second plate which is connected to the plate 24 by a raised edge 27, as can be seen better in Figure 3.
- This flat area 28 of the second plate 4 is in contact with the plate 11 of the neighboring plate, and the orifices 18 of these neighboring plates are aligned with each other.
- the return passage 19 of the first fluid path 5 extends at least partially around each through hole 10 of the dip channel 15.
- the through hole 10 has an outline substantially in the portion of a circle and optionally a straight edge.
- the through hole 10 and the orifice 18 of the return passage each have an outline substantially in the portion of a circle and a straight edge, the respective straight edges 30 and 31 being parallel and opposite one another.
- the through hole 10 has a circular outline and the return passage orifice 18 has a crescent moon shape that partially surrounds the through hole.
- the first fluid path 5, due to the return passage 19, has at least two reversals, so as to create a path with at least three passes.
- the heat exchanger 1 according to the invention can be used in a cooling system, in particular to cool the cells of an electric battery.
- This exchanger 1 could also be used to cool and/or heat other components found in a motor vehicle.
- the heat exchanger 1 according to the invention can be used in a cooling system, in particular to cool the cells of an electric battery.
- This exchanger 1 is arranged in a cooling system comprising a loop thermally coupled with the electrical storage device and in communication with a first path 5 of the heat exchanger 1, and a circuit in communication with a second circulation path of the heat exchanger 1 .
- the heat exchanger implements an exchange of calories between a first fluid and a second fluid, the first fluid then being cooled by the second fluid.
- the first fluid is for example a heat transfer fluid or a mixture between one or more heat transfer fluids and one or more other fluids.
- One of the fluids may be a dielectric fluid.
- the other fluid can be a refrigerant or a mixture between one or more refrigerants and one or more other fluids.
- the coolant(s) are in particular coolants of the family of hydrochlorofluorocarbons (HCFCs), or hydrofluorocarbons.
- the coolant may in particular be RI 34a known as 1,1,1,2-tetrafluoroethane, or 1234YF also called 2,3,3,3-tetrafluropropene.
- the coolant can also be carbon dioxide known by the acronym R744.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2113112A FR3130021B1 (fr) | 2021-12-08 | 2021-12-08 | Échangeur thermique pour véhicule automobile |
| PCT/EP2022/083734 WO2023104594A1 (fr) | 2021-12-08 | 2022-11-29 | Échangeur thermique pour véhicule automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4445088A1 true EP4445088A1 (fr) | 2024-10-16 |
| EP4445088B1 EP4445088B1 (fr) | 2026-02-04 |
Family
ID=80447476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22823052.0A Active EP4445088B1 (fr) | 2021-12-08 | 2022-11-29 | Plaque pour échangeur thermique et échangeur thermique pour véhicule automobile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250052505A1 (fr) |
| EP (1) | EP4445088B1 (fr) |
| CN (1) | CN118401801A (fr) |
| FR (1) | FR3130021B1 (fr) |
| WO (1) | WO2023104594A1 (fr) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5462113A (en) * | 1994-06-20 | 1995-10-31 | Flatplate, Inc. | Three-circuit stacked plate heat exchanger |
| IT1276990B1 (it) * | 1995-10-24 | 1997-11-03 | Tetra Laval Holdings & Finance | Scambiatore di calore a piastre |
| SE508474C2 (sv) * | 1997-02-14 | 1998-10-12 | Alfa Laval Ab | Sätt att framställa värmeväxlingsplattor; sortiment av värmeväxlingsplattor; och en plattvärmeväxlare innefattande värmeväxlingsplattor ingående i sortimentet |
| DE10152363A1 (de) * | 2001-10-24 | 2003-05-08 | Modine Mfg Co | Gehäuseloser Plattenwärmetauscher |
| SE521311C2 (sv) * | 2002-05-29 | 2003-10-21 | Alfa Laval Corp Ab | Plattvärmeväxlaranordning samt värmeväxlarplatta |
| CA2504533A1 (fr) * | 2005-04-20 | 2006-10-20 | Dana Canada Corporation | Piece rapportee de cloison brise-lames a enclenchement pour dispositifs a liquide |
| DE102010028660A1 (de) * | 2010-05-06 | 2011-11-10 | Behr Industry Gmbh & Co. Kg | Stapelscheiben-Wärmetauscher |
| DE102011081886A1 (de) * | 2011-08-31 | 2013-02-28 | Behr Gmbh & Co. Kg | Wärmeübertrager |
| FR2986315B1 (fr) * | 2012-01-30 | 2014-01-10 | Valeo Systemes Thermiques | Echangeur de chaleur |
| DE102015220579A1 (de) * | 2015-10-21 | 2017-04-27 | Mahle International Gmbh | Stapelscheiben-Wärmeübertrager |
| MX2018009399A (es) * | 2016-02-03 | 2019-01-10 | Modine Mfg Co | Intercambiador de calor de placas para refrigeración de baterias y conjunto de placas. |
| DE102018206574A1 (de) | 2018-04-27 | 2019-10-31 | Mahle International Gmbh | Stapelscheibenwärmetauscher |
| CN111380386B (zh) * | 2018-12-28 | 2021-08-27 | 丹佛斯有限公司 | 多回路板式换热器 |
-
2021
- 2021-12-08 FR FR2113112A patent/FR3130021B1/fr active Active
-
2022
- 2022-11-29 CN CN202280081509.6A patent/CN118401801A/zh active Pending
- 2022-11-29 WO PCT/EP2022/083734 patent/WO2023104594A1/fr not_active Ceased
- 2022-11-29 US US18/715,732 patent/US20250052505A1/en active Pending
- 2022-11-29 EP EP22823052.0A patent/EP4445088B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023104594A1 (fr) | 2023-06-15 |
| US20250052505A1 (en) | 2025-02-13 |
| CN118401801A (zh) | 2024-07-26 |
| FR3130021A1 (fr) | 2023-06-09 |
| EP4445088B1 (fr) | 2026-02-04 |
| FR3130021B1 (fr) | 2023-10-27 |
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Owner name: VALEO ELECTRIFICATION |