EP3743667A1 - Heat exchanger plate, and heat exchanger comprising such a plate - Google Patents
Heat exchanger plate, and heat exchanger comprising such a plateInfo
- Publication number
- EP3743667A1 EP3743667A1 EP18708332.4A EP18708332A EP3743667A1 EP 3743667 A1 EP3743667 A1 EP 3743667A1 EP 18708332 A EP18708332 A EP 18708332A EP 3743667 A1 EP3743667 A1 EP 3743667A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- edge
- piece
- plates
- coupling
- 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
- 230000008878 coupling Effects 0.000 claims abstract description 32
- 238000010168 coupling process Methods 0.000 claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 claims abstract description 32
- 230000008602 contraction Effects 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 40
- 239000013529 heat transfer fluid Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 230000003313 weakening effect Effects 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 230000000644 propagated effect Effects 0.000 claims description 2
- 230000010339 dilation Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000005476 soldering Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000005382 thermal cycling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- -1 copper Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- 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
- F28F9/007—Auxiliary supports for elements
- F28F9/0075—Supports for plates or plate assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
Definitions
- the present invention relates to a plate for a heat exchanger, in particular for a brazed plate heat exchanger on the walls of the casing.
- the automobile like many other industries, uses heat exchangers to provide the engine with optimum temperature conditions.
- An air conditioning system in a vehicle interior also requires heat exchangers.
- Aluminum allows a significant weight gain and aluminum alloys have a quite satisfactory thermal conductivity while having a good resistance to corrosion.
- the plates 2, 3 of a heat exchanger 1 of the state of the art are thus typically assembled by soldering to the casing 5 of the exchanger 1, that is to say assembled by a supply of metal in the liquid state on the metal parts to be assembled.
- heat exchangers 1 are subjected to loads of service at the same time strong and of various natures: constraints thermomechanical and chemical reactions with more or less aggressive environments.
- thermal shocks that are caused by a sudden and significant change in temperature, for example when opening the valves equipped with sensors, to measure the engine temperature, and letting the water pass Cooling the engine, cold, into the engine air intake system, warmer.
- thermal shocks lead to expansion / contraction phenomena of the plates 2, 3 of the heat exchanger 1, called thermal cycles.
- the present invention therefore aims to overcome the disadvantages of the prior art and to meet the above constraints by proposing a heat exchanger plate, simple in its design and in its operating mode, reliable and economical, which can limit or to avoid, the appearance in the plate of rupture zones related to thermal shocks.
- Another object of the present invention is such a plate for heat exchanger ensuring a bearing on the opposite walls of the casing for its assembly by soldering with a complementary plate to form a circulation duct of a heat transfer fluid.
- the present invention also relates to a heat exchanger comprising at least one such exchanger plate, so as to have enhanced reliability.
- the invention relates to a plate for a heat exchanger, said plate comprising a coupling edge to another plate.
- said edge comprises at least one fuse piece for assembling this coupling edge, with at least one casing wall, said at least one fuse piece being configured to be separated from the rest of said coupling edge by differential expansion / contraction between said plate and said at least one housing wall on which it is intended to be assembled.
- the plate for heat exchanger can have any shape such as square, rectangular, ...
- edge of the plate is meant the peripheral portion of this plate defining an area of this plate for the circulation of a heat transfer fluid, this peripheral portion having an upper face, a wafer and a lower face.
- said or at least one of said fusible parts is carried by a corner of said plate or by a portion of the coupling edge, close to this corner, said portion having a width (hi) greater than the width (h 2 ) of this coupling edge, in a median portion of said plate.
- this part may extend over a distance of between 0 and 30 mm, if a minimum width hi of 5 mm is guaranteed in this part.
- each fuse piece is carried by a corner of the plate or a portion of the coupling edge close to this edge, because it is in these parts of the plate that the rupture of the fuse piece is best controlled and that the distance separating the fusible part from the zone of the plate where it is sought to preserve the seal is the most important.
- Two opposite corners of said plate each comprises a fuse piece for assembly of said coupling edge, with the same housing wall or opposite housing walls.
- said coupling edge having a width (h 2 ) in a median portion of said plate, greater than or equal to a predetermined safety width (h s ) for which a fuse break is not propagated beyond said edge coupling, said edge has a fuse piece in said middle portion of said plate.
- this predetermined safety width h s is equal to 5 mm. It is thus possible to position a fuse piece outside a corner or an area of the edge close to this corner, for example in a middle part of the plate, provided that the width of the coupling edge is sufficient to prevent any propagation of a rupture of the fuse piece beyond this edge.
- each fuse piece comprises a predetermined zone of weakening so as to cause its separation from the coupling edge.
- This configuration of the fuse piece makes it possible to achieve another objective of the present invention, namely to obtain a "clean" break, or clean separation, of the fuse piece from the coupling edge, so that this break does not tend to propagate beyond the coupling edge, that is to say in the region of the plate defined by this edge and in which is intended to circulate a heat transfer fluid.
- the predetermined weakening zone is advantageously contained in this main plane (P), preferably belonging to this edge.
- said or at least one fuse piece comprises a line of lesser mechanical resistance so as to break along this line.
- This line of lesser mechanical strength therefore has a lower breaking strength than the metal material surrounding it.
- this line of least resistance is intended to cause the separation, preferably in one piece, of the part of the fuse piece related to this line of least resistance.
- they may be orifices arranged linearly or rectilinearly to form a "line of perforated material".
- said or at least one fuse piece comprises at least one notch.
- said fuse piece comprises a first line of least resistance, two notches being located on either side of this line of least resistance.
- this line of least resistance is obtained by local thinning.
- each fuse piece comprises a tab connected by said predetermined zone of weakening to the coupling edge, said tab being curved to present an assembly surface, preferably flat or substantially flat, intended to be assembled, by soldering, to a crankcase wall.
- this joining surface being contained in a main plane (P), this joining surface advantageously extends perpendicularly to the main plane (P).
- said plate comprises a fluid inlet and a fluid outlet, each of the fluid inlet and outlet having a collar.
- these fluid inlet and outlet are placed in a median or substantially median portion of the plate.
- these fluid inlet and outlet are placed on the same side of the plate.
- Such a plate has at least one fuse piece on at least one of its sides.
- fusible pieces are placed on two of the opposite sides of this plate.
- a first side of this plate comprises a fluid inlet and a fluid outlet placed at the plate head.
- this first side has a continuous rim and the opposite side of said plate to said first side comprises at least one fuse piece, preferably two fusible pieces.
- Each fuse piece has an assembly surface on a housing wall whose longitudinal dimension is between 3 and 20 mm.
- said plate is in one piece and made of a metallic material such as aluminum or an aluminum alloy.
- the casing walls are made of a metallic material, preferably aluminum or an aluminum alloy.
- the present invention also relates to a pair of exchanger plates as described above, the coupling edges of these plates being intended to be assembled to delimit a heat transfer fluid circulation duct between these plates, each coupling edge comprising at least one fusible piece, said fusible parts being arranged on the edges of said plates so that after assembly thereof, two fusible parts belonging to distinct plates, are placed facing one another or are offset one with respect to the other.
- the fusible parts are advantageously placed in the extension of one another.
- each fuse piece is placed only in a corner of said plates.
- the present invention also relates to a plate heat exchanger comprising two plates as described above, these two plates being assembled together to delimit a heat transfer fluid circulation duct between these plates, at least one edge of the assembly and formed, connected to a housing wall comprises, for each of these plates, at least one fuse piece, said or at least some of said fuse pieces placed on this edge being positioned opposite one another or being offset relative to each other.
- the fusible parts are advantageously placed in the extension of one another.
- the offset fusible parts placed on the same corner of the plates thus assembled allows an increase in the assembly area of each fuse piece to be assembled by soldering to the housing wall.
- This heat exchanger may comprise a heat exchange beam between a first fluid and a second fluid, and a casing inside which this exchange beam is placed.
- the first fluid may be air and the second fluid may be a coolant.
- the second fluid may be for example a mixture of water and glycol.
- the air can be charged air.
- FIG. 1 is a partial and enlarged view of a heat exchanger of the state of the art, showing in particular a brazed assembly line between a plate of the exchanger and the corresponding wall of the housing;
- FIG. 2 is a perspective view of a plate for heat exchanger according to a first embodiment of the invention
- Figure 3 is a partial and enlarged view of the plate of FIG. 2 showing a corner of it, equipped with a fuse piece;
- FIG. 4 is a diagrammatic representation in plan view of the corner of the plate of FIG. 3, an area of the plate capable of carrying a fuse, including a corner, is shown in dotted line;
- Figure 5 shows the corner of the plate of FIG. 3, when subjected to thermal cycling
- Figure 6 shows a partial view of two superimposed heat exchanger plates for assembly to form a pair of plates
- FIG. 7 is a partial view of a pair of plates, the corners of the lower transverse edges of these plates and superimposed each having a fuse piece; the fusible parts on each corner being offset between the two plates being placed in the extension of one another;
- FIG 8 is a perspective view of a heat exchanger plate according to a second embodiment of the invention.
- Figure 9 schematically shows a plate for heat exchanger according to a third embodiment of the invention.
- FIGS 2 to 5 schematically show a heat exchanger plate 10 according to a first embodiment of the present invention.
- This plate 10 which is in one piece, is for example made of aluminum or an aluminum alloy.
- This plate 10 is of generally rectangular shape.
- This plate 10 has on a first transverse edge 13, or side extending in a transverse direction, a fluid inlet 14 for introducing a fluid and a fluid outlet 15 for discharging the fluid, which are placed at the top of the plate.
- This plate 10 also comprises a central rib 16 on the surface of its inner wall, which defines a projection for generating a separation on the surface of the inner wall of the plate 10 in order to define a "U" circuit between the inputs 14 and fluid outlet 15.
- this plate 10 has a plurality of protuberances 17 placed in the fluid circulation passage on its inner wall, which are intended to disrupt the flow of fluid.
- This plate 10 has longitudinal edges 18 of dimension just smaller than that of the upper and lower faces of the housing and the transverse edges 13 of dimension equal to or substantially equal to that of the side walls of the housing of the exchanger (not shown).
- This plate 10 also has four corners 19, only one being shown in FIGS. 3 to 5. Each corner 19 defines an edge surrounding a portion of said ribs 14.
- the first transverse edge 13 of the plate 10 receiving the fluid inlet and outlet, comprises a continuous flange for its assembly to a housing wall while the two corners 19 of the transverse edge opposite this first edge 13, each comprise a part 20 fuse.
- the first transverse edge 13 of the plate 10 ensures sealing at the fluid inlet and outlet.
- Each fuse piece here comprises a curved lug 21 having an assembly surface 22, and a predetermined weakening zone 23 connecting this curved lug 21 to the corresponding corner 19 of the plate 10 so as to allow the separation of this curved lug 21 corresponding corner 19.
- the assembly surfaces 22 of the fusible parts being flat, the opposite side walls of the housing are also flat at the assembly areas of these surfaces 22 of assembly with the housing walls.
- This predetermined zone 23 of weakening is here obtained by cutting a part of the lateral edges of the body of the fusible part 20, these notches making it possible to generate a breaking primer.
- These notches are here rectangular or substantially rectangular.
- the depth of the notches is determined so that the separation is carried out after a few thermal cycles of expansion / contraction of this plate 10.
- the largest side of this notch is of a dimension less than or equal to 1 mm and its short side is of a dimension less than or equal to 0.5 mm.
- Figure 5 shows, by numerical simulation, the good results obtained with this plate 10 for heat exchanger when it is subjected to thermal cycles.
- the plate 10 for heat exchanger After rupture of the fusible parts, the plate 10 for heat exchanger is separated at its sides comprising fusible parts.
- Figures 6 and 7 illustrate the assembly of a plate 10 as described above, with another plate 24 to define a pair of plates delimiting between them a passage for the flow of a fluid.
- the elements of Figures 6 and 7 with the same references as those described in Figures 2 to 5, represent the same objects, which will not be described again below.
- the side of this pair of plates 10, 24 thus shown comprises at each of its opposite corners 19, two parts 20, 25 fusible.
- the two pieces 20, 25 fuses of each corner 19 of the pair each belong to a different plate 10, 24 and are offset relative to each other while being in the extension of one another.
- Figure 8 is a perspective view of a heat exchanger plate 30 according to a second embodiment of the invention.
- This plate 30 comprises a fluid inlet 31 and a fluid outlet 32, each of the fluid inlet and outlet having a collar and an oblong shape.
- these fluid inlet and outlet 31, 32 are placed along the length (L) at a distance from the lateral edges of the plate corresponding to L / 2, or substantially L / 2.
- Protuberances 33 disrupt fluid flow while ribs 34 provide fluid flow passages with a sinuous path with half-turns between fluid inlet and outlet 31, 32.
- This plate 30 has 35-38 fusible parts on both sides thereof extending in a transverse direction.
- Figure 9 schematically shows a plate for heat exchanger according to a third embodiment of the invention.
- This plate 40 has a fluid inlet 41 and a fluid outlet 42 placed on the same side of the plate, this side 43 extending in a transverse direction.
- Each of these fluid inlet 41 and outlet 42 has a collar and an oblong shape.
- This plate 40 has a fuse piece 44 in each corner 45 on its side opposite to that 43 extending in a transverse direction where the fluid inlet and outlet are located.
- This side 43 extending in a transverse direction has a continuous flange for brazing to a housing wall.
- the side 43 may alternatively receive fusible parts 44.
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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2018/051609 WO2019145022A1 (en) | 2018-01-23 | 2018-01-23 | Heat exchanger plate, and heat exchanger comprising such a plate |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3743667A1 true EP3743667A1 (en) | 2020-12-02 |
EP3743667B1 EP3743667B1 (en) | 2023-08-16 |
Family
ID=61557222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18708332.4A Active EP3743667B1 (en) | 2018-01-23 | 2018-01-23 | Heat exchanger plate, and heat exchanger comprising such a plate |
Country Status (4)
Country | Link |
---|---|
US (1) | US12013189B2 (en) |
EP (1) | EP3743667B1 (en) |
CN (1) | CN111886470B (en) |
WO (1) | WO2019145022A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202018004979U1 (en) * | 2018-10-25 | 2020-01-28 | Reinz-Dichtungs-Gmbh | Plate-like liquid container and battery temperature control arrangement |
DE102018221487A1 (en) * | 2018-12-12 | 2020-06-18 | Mahle International Gmbh | Heat exchanger for a motor vehicle and associated manufacturing process |
EP4023990A1 (en) * | 2020-12-30 | 2022-07-06 | Valeo Autosystemy SP. Z.O.O. | A tube for a heat exchanger |
EP4023998A1 (en) * | 2020-12-30 | 2022-07-06 | Valeo Autosystemy SP. Z.O.O. | A tube for a heat exchanger |
EP4023991A1 (en) * | 2020-12-30 | 2022-07-06 | Valeo Autosystemy SP. Z.O.O. | A tube for a heat exchanger |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4253520A (en) * | 1978-10-26 | 1981-03-03 | The Garrett Corporation | Heat exchanger construction |
JP3041753B2 (en) | 1994-02-16 | 2000-05-15 | 株式会社日立製作所 | Plate heat exchanger |
GB2303437A (en) * | 1995-06-12 | 1997-02-19 | Ford Motor Co | Stress relief in heat exchangers |
US6412547B1 (en) * | 2000-10-04 | 2002-07-02 | Modine Manufacturing Company | Heat exchanger and method of making the same |
EP1497604A1 (en) * | 2002-04-09 | 2005-01-19 | Behr GmbH & Co. KG | Heat transfer unit, especially for a motor vehicle |
US7059050B2 (en) * | 2004-01-08 | 2006-06-13 | Delphi Technologies, Inc. | One piece integral reinforcement with angled end caps to facilitate assembly to core |
US7621317B2 (en) * | 2006-05-11 | 2009-11-24 | Modine Manufacturing Company | Self-breaking radiator side plates |
FR2980837B1 (en) * | 2011-10-04 | 2015-06-26 | Valeo Systemes Thermiques | HEAT EXCHANGER WITH STACKED PLATES. |
FR2992715B1 (en) | 2012-06-27 | 2018-09-14 | Valeo Systemes Thermiques | HEAT EXCHANGER, ESPECIALLY A MOTOR VEHICLE ENGINE SUPERVISING AIR COOLER |
EP2708840A1 (en) | 2012-09-18 | 2014-03-19 | Linde Aktiengesellschaft | Plate heat exchanger with a connection element, in particular a T-shaped connection element |
US9038610B2 (en) * | 2013-02-18 | 2015-05-26 | Modine Manufacturing Company | Charge air cooler, and intake manifold including the same |
JP5953323B2 (en) * | 2014-02-14 | 2016-07-20 | 株式会社ティラド | Heat exchanger |
US10429133B2 (en) * | 2016-08-04 | 2019-10-01 | Hanon Systems | Heat exchanger element with thermal expansion feature |
DE102017206113A1 (en) * | 2017-04-10 | 2018-10-11 | Mahle International Gmbh | Heat exchanger for a motor vehicle |
CN206626984U (en) | 2017-04-18 | 2017-11-10 | 富奥汽车零部件股份有限公司 | A kind of radiator for including reinforced sheet |
US11137210B2 (en) * | 2019-08-07 | 2021-10-05 | Denso International America, Inc. | Heat exchanger |
-
2018
- 2018-01-23 WO PCT/EP2018/051609 patent/WO2019145022A1/en unknown
- 2018-01-23 EP EP18708332.4A patent/EP3743667B1/en active Active
- 2018-01-23 US US16/964,002 patent/US12013189B2/en active Active
- 2018-01-23 CN CN201880091372.6A patent/CN111886470B/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3743667B1 (en) | 2023-08-16 |
US20210071961A1 (en) | 2021-03-11 |
WO2019145022A1 (en) | 2019-08-01 |
US12013189B2 (en) | 2024-06-18 |
CN111886470A (en) | 2020-11-03 |
CN111886470B (en) | 2022-06-28 |
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