EP3598050B1 - Échangeur de chaleur renforcé comprenant un empilement de plaques - Google Patents

Échangeur de chaleur renforcé comprenant un empilement de plaques Download PDF

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Publication number
EP3598050B1
EP3598050B1 EP18184519.9A EP18184519A EP3598050B1 EP 3598050 B1 EP3598050 B1 EP 3598050B1 EP 18184519 A EP18184519 A EP 18184519A EP 3598050 B1 EP3598050 B1 EP 3598050B1
Authority
EP
European Patent Office
Prior art keywords
plate
heat exchanger
plates
reinforcing elements
lower plate
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.)
Active
Application number
EP18184519.9A
Other languages
German (de)
English (en)
Other versions
EP3598050A1 (fr
Inventor
M. Dario PENA
Daniel SEBASTIAN
Pedro BRUNA
José ESCOS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Termico SA
Original Assignee
Valeo Termico SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Termico SA filed Critical Valeo Termico SA
Priority to EP18184519.9A priority Critical patent/EP3598050B1/fr
Publication of EP3598050A1 publication Critical patent/EP3598050A1/fr
Application granted granted Critical
Publication of EP3598050B1 publication Critical patent/EP3598050B1/fr
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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
    • 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
    • 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
    • F28D2021/0089—Oil coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/06—Adapter frames, e.g. for mounting heat exchanger cores on other structure and for allowing fluidic connections

Definitions

  • heat exchangers comprising stack of plates for the circulation of two fluids alternately between the adjacent pairs of plates.
  • Such heat exchangers are used for example as oil coolers for the oil of the engine.
  • the oil and coolant circulate along respective sides of each intermediate plate of the stack of plates.
  • the heat exchanger may also comprise a fixation plate for fixation of the stack of plates into the automotive vehicle.
  • the stack of plates is for example soldered to the fixation plate which is itself fastened to the vehicle, for example with screws.
  • a reinforcement plate between the fixation plate and the stack of plates is also known from US2007084809-A and EP2267390-A .
  • One aspect of the invention relates to a heat exchanger comprising a stack of plates comprising a lower plate onto which the other plates are stacked, and the heat exchanger comprises a fixation plate, and a reinforcement plate between the fixation plate and the lower plate, wherein the reinforcement plate has reinforcing elements only around one or more corners of the lower plate and wherein the fixation plate has a planar surface receiving the reinforcement plate and a protrusion around the reinforcement plate.
  • the heat exchanger may comprise one, several or any combination of the following technical features:
  • FIG. 1 shows a heat exchanger 2 typically used for oil cooling.
  • the heat exchanger comprises a stack of plates 4, a fixation plate 6 and a reinforcement plate 8 between the fixation plate 6 and the stack of plates 4.
  • the heat exchanger comprises a coolant inlet 10 and coolant outlet 12 going through the top end plate 14 of the stack of plates.
  • the coolant is for example a water and glycol based liquid commonly used for engine cooling.
  • an oil inlet 16 and an oil outlet 18 can also be seen through the lower plate 20, through the reinforcement plate 8 and through the fixation plate 6.
  • the heat exchanger is thus intended to be used as an oil cooler, for example for cooling the oil of the engine of the automotive vehicle.
  • the heat exchanger could also be used for heat exchange between other fluids, such as for example between water and glycol based liquid and a refrigerant fluid such as for example 1234yf.
  • the stack of plates 4 of the heat exchanger is designed so that the two fluids circulate alternately between the adjacent pairs of plates. That is to say, each fluid circulates along respective sides of each intermediate plate 22 (also called “base plates") of the stack of plates.
  • the base plates 22 have holes for the circulation of the two fluids through each base plate.
  • the reinforcement plate 8 shown more specifically on Figures 2 a 3, is a substantially planar plate having two reinforcing elements 24 around two corners 26 of the lower plate 20. These two reinforcing elements 24 shown more closely on Figure 4 are obtained preferably by cutting and folding material from the reinforcement plate, but they could also be obtained by any other adapted process of the lower plate 20.
  • the internal surface 28 of the reinforcing elements 24 contact the external surface 30 of the peripheral edge 32 of the lower plate 20.
  • the internal surface 28 of the reinforcing elements 24 have a shape that is complementary of the shape of the external surface 30 and thus in contact along the whole corner 26.
  • the height h of the reinforcing element 24, measured from the top planar surface 34 of the fixation plate 6 is preferably at least half the height h' of the peripheral edge 32 of the lower plate 20, measured from the top main planar surface 36 of the reinforcement plate 8.
  • reinforcing elements 24 there are reinforcing elements 24 around only two corners 26 of the lower plate 20, as can be seen on the figures.
  • the reinforcing elements 24 are in one part (or “continuous") around their respective corners 26. That is to say that each corner 26 is reinforced by only one reinforcing element. It was found a more reliable reinforcement compared to having several reinforcing elements around a specific corner.
  • the reinforced corners are the one at proximity of the holes for fluid communication 16 and 18 for oil. If the inlet and outlet of water and glycol based coolant were also designed through the reinforcement plate 8 and fixation plate 6, which is also a possible alternative, then the reinforcing elements would be at proximity of the inlet & outlet for oil, and there would be no reinforcing elements at proximity of the inlet & outlet for water & glycol based coolant.
  • the reinforcement plate 8 has fixation holes 38 in regards of corresponding fixation holes of the fixation plate 6, in order to receive for example fixation screws intended to fasten the heat exchanger into the automotive vehicle.
  • the reinforcement plate has no fixation hole and the fixation plate 6 is fastened to the automotive by holes that are external to the reinforcement plate.
  • the reinforcement plate 8 also has positioning protrusions 42, or more generally positioning elements, that cooperate with corresponding positioning elements 42 of the lower plate 20.
  • the positioning elements 42 of the lower plate 20, the reinforcement plate 8 and the fixation plate 6, are protruding plots, the protruding plots of each of the plates 20, 6 and 8 being respectively identical.
  • fixation plate 6 shown on figures 2 , 3 & 4 is intended to receive the reinforcement plate and to fasten the heat exchanger 2 to the automotive vehicle thanks to fixation holes 44 in regards of the fixation holes 38 of the reinforcement plate 8. Fixation can be done with fixation screws or any other adapted fixation element such as bolts.
  • the fixation plate 6 has a top planar surface 34 ( Figure 4 ) receiving the bottom planar surface 46 of the reinforcement plate, the two surfaces being in contact with each other.
  • the fixation plate 6 and reinforcement plate 8 could have any other adapted geometry.
  • the fixation plate 6 has a peripheral edge 48 around the reinforcement plate 8 for reinforcement of the fixation plate 6.
  • the peripheral edge 48 extends along substantially the whole contour of the reinforcement plate 6. In the figures, there are only two regions 52 where the peripheral edge 48 is not present, but the peripheral edge 48 is still present around at least 50% of the contour of the reinforcement plate 6.
  • the stack of plates 4 is made of identical base plates, an upper plate (not shown) and of the top end plate 14, as commonly known.
  • the lower plate 20 has two holes 54 & 56. There holes are inactive for the lower plate 20 because these holes do not have corresponding holes in the reinforcement plate 8 and in the fixation plate 6.
  • the lower plate 20 also has holes 58 & 60 for the circulation of oil.
  • the base plates 22 are all identical. They have holes 62 for the circulation of oil and holes 64 for the circulation of coolant.
  • each base plate is turned 180 degrees in respect of the adjacent base plates. In this way, it is not necessary to make two different kinds of plates, as commonly known.
  • a first group of base plates are intended for the circulation of oil above the base plates 22.
  • the holes 62 for the circulation of oil are in the same plane as the main planar surfaces of these plates and the holes 66 for the circulation of coolant are elevated so that they make a tight contact with the bottom planar surface of the base plate above, which is turned 180 degrees.
  • the second half of the base plates 22 of the stack of plates have holes 64 for coolant in the plane of the main planar surfaces of these base plates 22 and the holes for the circulation of oil 62 are elevated so that they make a tight contact with the bottom surface of the plates above. Coolant will circulate on the top side of this second type of base plate.
  • each base plate 22 of the stack of plates 4, the lower plate 22 and the upper plate having a peripheral edge 32 of an identical shape.
  • the peripheral edge 32 of each plate receives the external surface of the peripheral edge 32 of the plate above in a tight manner.
  • This design is also called a "tub” design wherein each tub plate receives the tub plate above in a tight manner along the peripheral edges 32.
  • the top end plate only has holes 66 & 68 for receiving the inlet & outlet of coolant.
  • the inlet & outlet of coolant could also be on the side of the fixation plate 6, in which case, there would be not circulation holes in the top end plate 14.

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)

Claims (11)

  1. Échangeur de chaleur (2) comprenant un empilement de plates (4) comprenant une plaque inférieure (20) sur laquelle les autres plaques (22) sont empilées, et l'échangeur de chaleur comprend une plaque de fixation (6), et une plaque de renfort (8) entre la plaque de fixation (6) et la plaque inférieure (20), dans lequel la plaque de renfort (8) a des éléments de renforcement (24) seulement autour d'un ou de plusieurs coins (26) de la plaque inférieure (20) ; caractérisé en ce que
    la plaque de fixation (6) a une surface plane (34) recevant la plaque de renfort (8) et une protubérance (48) autour de la plaque de renfort (8).
  2. Échangeur de chaleur (2) selon la revendication 1, dans lequel les éléments de renforcement (24) sont seulement autour de deux coins (26) de la plaque inférieure (20).
  3. Échangeur de chaleur (2) selon la revendication 1 ou 2, dans lequel les éléments de renforcement (24) sont en contact avec la plaque inférieure (20).
  4. Échangeur de chaleur (2) selon l'une quelconque des revendications précédentes, dans lequel les éléments de renforcement (24) ont une forme complémentaire à la forme de la plaque inférieure (20).
  5. Échangeur de chaleur (2) selon l'une quelconque des revendications précédentes, dans lequel les éléments de renforcement (24) sont obtenus à partir d'une découpe et d'un pli du matériau de la plaque de renfort (8).
  6. Échangeur de chaleur (2) selon l'une quelconque des revendications précédentes, dans lequel la plaque de renfort (8) est une plaque plane, sauf dans les régions des éléments de renforcement (24).
  7. Échangeur de chaleur (2) selon l'une quelconque des revendications précédentes, dans lequel la plaque de renfort (8) a deux trous (16, 18) pour la circulation de fluide, les éléments de renforcement (24) étant à proximité des deux trous (16, 18).
  8. Échangeur de chaleur (2) selon la revendication précédente, dans lequel la plaque inférieure (20) a des trous correspondants (58, 60) en regard des deux trous (16, 18) pour la circulation de fluide de la plaque de renfort (8), les deux trous (58, 60) de la plaque inférieure (20) étant respectivement dans les deux coins (26) de la plaque inférieure (20) qui sont renforcés par les éléments de renforcement (24).
  9. Échangeur de chaleur (2) selon la revendication 8, dans lequel la protubérance (48) est un bord périphérique de la plaque de fixation (6).
  10. Échangeur de chaleur (2) selon l'une quelconque des revendications précédentes, dans lequel l'empilement de plaques (4) définit deux circuits pour deux fluides respectifs, les circuits étant configurés pour que les deux fluides circulent en alternance entre les paires adjacentes de plaques (22).
  11. Échangeur de chaleur (2) selon l'une quelconque des revendications précédentes, dans lequel l'échangeur de chaleur (2) est un refroidisseur d'huile.
EP18184519.9A 2018-07-19 2018-07-19 Échangeur de chaleur renforcé comprenant un empilement de plaques Active EP3598050B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18184519.9A EP3598050B1 (fr) 2018-07-19 2018-07-19 Échangeur de chaleur renforcé comprenant un empilement de plaques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18184519.9A EP3598050B1 (fr) 2018-07-19 2018-07-19 Échangeur de chaleur renforcé comprenant un empilement de plaques

Publications (2)

Publication Number Publication Date
EP3598050A1 EP3598050A1 (fr) 2020-01-22
EP3598050B1 true EP3598050B1 (fr) 2021-03-03

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ID=63012928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18184519.9A Active EP3598050B1 (fr) 2018-07-19 2018-07-19 Échangeur de chaleur renforcé comprenant un empilement de plaques

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EP (1) EP3598050B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3276291B1 (fr) 2005-10-05 2019-07-24 Dana Canada Corporation Échangeur thermique à plaques embouties avec élément de renfort
DE102009030095A1 (de) 2009-06-22 2010-12-23 Behr Gmbh & Co. Kg Stapelscheibenkühler
JP6376836B2 (ja) * 2013-08-22 2018-08-22 株式会社マーレ フィルターシステムズ 熱交換器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3598050A1 (fr) 2020-01-22

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