EP3743667B1 - Heat exchanger plate, and heat exchanger comprising such a plate - Google Patents

Heat exchanger plate, and heat exchanger comprising such a plate Download PDF

Info

Publication number
EP3743667B1
EP3743667B1 EP18708332.4A EP18708332A EP3743667B1 EP 3743667 B1 EP3743667 B1 EP 3743667B1 EP 18708332 A EP18708332 A EP 18708332A EP 3743667 B1 EP3743667 B1 EP 3743667B1
Authority
EP
European Patent Office
Prior art keywords
plate
fusible
edge
plates
fusible component
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
EP18708332.4A
Other languages
German (de)
French (fr)
Other versions
EP3743667A1 (en
Inventor
Jean-Pierre Galland
Nicolas Vallee
Yoann Naudin
Frédéric WASCAT
Eddie Sausset
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 Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP3743667A1 publication Critical patent/EP3743667A1/en
Application granted granted Critical
Publication of EP3743667B1 publication Critical patent/EP3743667B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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 an exchanger with plates brazed on the walls of the casing.
  • EN 2992 715 A1 discloses a plate according to the preamble of claim 1.
  • Automotive like many other industrial fields, uses heat exchangers to provide the engine with optimal temperature operating conditions.
  • a vehicle cabin air conditioning system also requires heat exchangers.
  • Aluminum in fact allows a not insignificant weight gain and aluminum alloys also have a completely satisfactory thermal conductivity while exhibiting good resistance to corrosion.
  • the assembly of the constituent elements of a heat exchanger is carried out, industrially, by brazing, and not by spot welding.
  • the plates 2, 3 of a state-of-the-art heat exchanger 1 are thus typically assembled by brazing to the casing 5 of the exchanger 1, that is to say assembled by adding metal to the liquid state on the metal parts to be assembled.
  • heat exchangers 1 are subjected to stresses in service that are both strong and of various natures: stresses thermomechanical and chemical reactions with more or less aggressive environments.
  • thermal shocks which are caused by a sudden and significant variation in temperature, for example when opening valves equipped with sensors, making it possible to measure the temperature of the engine, and allowing water to pass engine coolant, cold, in the engine air intake circuit, warmer.
  • thermal shocks lead to phenomena of expansion/contraction of the plates 2, 3 of the heat exchanger 1, called thermal cycles.
  • the present invention therefore aims to overcome the drawbacks of the prior art and to respond to the constraints set out above by proposing a plate for an exchanger, simple in its design and in its mode of operation, reliable and economical, which makes it possible to limit, or even to avoid the appearance in the plate of rupture zones linked to thermal shocks.
  • Another object of the present invention is such a plate for a heat exchanger providing a bearing on the opposite walls of the casing with a view to its assembly by brazing with a complementary plate to form a conduit for the circulation of a heat transfer fluid.
  • the present invention also relates to a heat exchanger comprising at least one such plate for an exchanger, so as to present enhanced reliability.
  • the invention relates to a plate for a heat exchanger according to claim 1, said plate comprising an edge for coupling to another plate.
  • said edge comprises at least one fusible part for assembling this coupling edge, with at least one casing wall, said at least one fusible part being configured to be separated from the rest of said coupling edge by differential expansion/contraction between said plate and said at least one casing wall on which it is intended to be assembled.
  • the heat exchanger plate can have any shape such as square, rectangular, ...
  • edge of the plate is meant the peripheral part of this plate delimiting a zone of this plate for the circulation of a heat transfer fluid, this peripheral part having an upper face, an edge and a lower face.
  • this part can extend over a distance of between 0 and 30 mm, if a minimum width h 1 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 places 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 sealing is the greatest.
  • this predetermined safety width h s is equal to 5 mm.
  • 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 mating edge, so that this break does not tend to to propagate beyond the coupling edge, that is to say in the region of the plate delimited by this edge and in which a heat transfer fluid is intended to circulate.
  • Said coupling edge extending in a main plane (P) the predetermined weakening zone is advantageously contained in this main plane (P), preferably belonging to this edge.
  • said or at least one fusible part comprises a line of lesser mechanical resistance so as to break along this line.
  • This line of lesser mechanical resistance therefore has a breaking strength lower than that of the metallic material surrounding it.
  • this line of least resistance is intended to cause the separation, preferably in one piece, of the part of the fusible part linked to this line of least resistance.
  • these may be orifices arranged linearly, or even rectilinearly, to form a “line of perforated material”.
  • said or at least one fusible part comprises at least one notch.
  • said fusible part comprises a first line of least resistance, two notches being located on either side of this line of least resistance.
  • these fluid inlets and outlets are placed in a middle or substantially middle part of the plate.
  • these fluid inlets and outlets are placed on the same side of the plate.
  • Such a plate comprises at least one fusible part on at least one of its sides.
  • fuse 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 head of the plate.
  • the housing walls are made of a metallic material, preferably aluminum or an aluminum alloy.
  • the present invention also relates to a pair of plates for an exchanger as described previously, the coupling edges of these plates being intended to be assembled to delimit a conduit for the circulation of a heat transfer fluid between these plates, each coupling edge comprising at least one fuse piece, said fuse pieces being arranged on the edges of said plates so that after assembly of the latter, two fuse pieces belonging to separate plates are placed facing each other or are offset one in relation to the other.
  • the fusible parts are advantageously placed in the extension of one another.
  • each fusible part is placed only in one corner of said plates.
  • the present invention also relates to a plate heat exchanger comprising two plates as described previously, these two plates being assembled together to delimit a conduit for the circulation of a heat transfer fluid between these plates, at least one edge of the assembly as well formed, connected to a casing 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 from one another.
  • the fusible parts are advantageously placed in the extension of one another.
  • the offset of the fuse parts placed on the same corner of the plates thus assembled allows an increase in the assembly surface of each fuse part intended to be assembled by brazing to the casing wall.
  • This heat exchanger may comprise a bundle for exchanging heat between a first fluid and a second fluid, and a casing inside which this exchange bundle is placed.
  • the first fluid may be air and the second fluid may be a coolant.
  • the second fluid may for example be a mixture of water and glycol.
  • the air can for example be charged air.
  • FIGS. 2 to 5 schematically represent a plate 10 for a heat exchanger 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 generally rectangular in shape.
  • This plate 10 comprises 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 includes a central rib 16 on the surface of its interior wall, which defines a projection to generate a separation on the surface of the interior wall of the plate 10 in order to define a "U" circuit between the inlets 14 and outlet 15 of fluid.
  • this plate 10 comprises a plurality of protuberances 17 placed in the fluid circulation passage on its inner wall, which are intended to disturb the fluid circulation.
  • This plate 10 has longitudinal edges 18 of dimension just smaller than that of the upper and lower faces of the housing and transverse edges 13 of dimension equal or substantially equal to that of the side walls of the housing of the exchanger (not shown).
  • This plate 10 also comprises four corners 19, only one being represented on the Fig. 3 to 5 .
  • Each corner 19 defines an edge surrounding part 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 to this first edge 13, each comprise a part 20 fuse.
  • the first transverse edge 13 of the plate 10 makes it possible to guarantee sealing at the fluid inlet and outlet.
  • Each fuse piece 20 here comprises a curved leg 21 having an assembly surface 22, and a predetermined weakening zone 23 connecting this curved leg 21 to the corresponding corner 19 of the plate 10 so as to allow the separation of this curved leg 21 from the corresponding corner 19.
  • This predetermined zone 23 of weakening is here obtained by cutting out part of the side edges of the body of the fuse part 20, these notches making it possible to generate an incipient fracture.
  • These notches are here rectangular or substantially rectangular.
  • the depth of the notches is determined so that the separation is achieved after a few thermal cycles of expansion/contraction of this plate 10.
  • the longest side of this notch has a dimension less than or equal to 1 mm and its short side has a dimension less than or equal to 0.5 mm.
  • the plate 10 for the heat exchanger is separated at its sides comprising the fuse parts.
  • FIGS. 6 and 7 illustrate the assembly of a plate 10 as described previously, with another plate 24 to define a pair of plates defining between them a passage for the flow of a fluid.
  • the side of this pair of plates 10, 24 thus represented, comprises at each of its opposite corners 19, two pieces 20, 25 fuses.
  • 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.
  • FIG. 8 is a perspective view of a plate 30 for a heat exchanger 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 inlets and outlets having a collar and an oblong shape.
  • the plate 30 having a length (L) and a width (h), these fluid inlets and outlets 31, 32 are placed along the length (L) at a distance from the side edges of the plate corresponding to L/2, or substantially L/2.
  • Protuberances 33 make it possible to disturb the circulation of the fluid while ribs 34 give the fluid flow passages a sinuous path having half-turns between the fluid inlets and outlets 31, 32.
  • This plate 30 comprises fuse parts 35-38 on both sides thereof extending in a transverse direction.
  • 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 inlets 41 and outlets 42 has a collar and an oblong shape.
  • This plate 40 has a fusible part 44 in each corner 45 of 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 comprises a continuous rim intended to be brazed to a casing wall.
  • the side 43 can alternatively receive fuse 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)

Description

La présente invention concerne une plaque pour un échangeur de chaleur, notamment pour un échangeur à plaques brasées sur les parois du carter.The present invention relates to a plate for a heat exchanger, in particular for an exchanger with plates brazed on the walls of the casing.

Elle concerne également un échangeur de chaleur comprenant au moins une telle plaque. FR 2992 715 A1 divulgue une plaque selon le préambule de la revendication 1.It also relates to a heat exchanger comprising at least one such plate. EN 2992 715 A1 discloses a plate according to the preamble of claim 1.

L'automobile, comme de nombreux autres domaines industriels, utilise des échangeurs de chaleur pour assurer au moteur des conditions de fonctionnement en température optimales.Automotive, like many other industrial fields, uses heat exchangers to provide the engine with optimal temperature operating conditions.

Un système de climatisation de l'habitacle d'un véhicule requiert également des échangeurs de chaleur.A vehicle cabin air conditioning system also requires heat exchangers.

Il est ainsi connu d'équiper un véhicule de plusieurs échangeurs de chaleur, lesquels sont chacun équipés d'un jeu de plaques formant un faisceau d'échange de chaleur entre un premier fluide et un second fluide caloporteurs, ce faisceau d'échange étant logé dans un carter.It is thus known to equip a vehicle with several heat exchangers, which are each equipped with a set of plates forming a bundle of heat exchange between a first fluid and a second heat transfer fluid, this exchange bundle being housed in a casing.

Depuis plusieurs décennies, l'aluminium s'est imposé comme métal constitutif des échangeurs de chaleur et a, de fait, remplacé d'autres métaux tels que le cuivre, mis en oeuvre en raison de leurs bonnes propriétés thermiques.For several decades, aluminum has established itself as the constituent metal of heat exchangers and has, in fact, replaced other metals such as copper, used because of their good thermal properties.

L'aluminium autorise en effet un gain de poids non négligeable et les alliages d'aluminium possèdent de plus une conductivité thermique tout à fait satisfaisante tout en présentant une bonne tenue à la corrosion.Aluminum in fact allows a not insignificant weight gain and aluminum alloys also have a completely satisfactory thermal conductivity while exhibiting good resistance to corrosion.

En raison de la complexité des échangeurs de chaleur et des faibles dimensions autorisées, l'assemblage des éléments constitutifs d'un échangeur de chaleur est réalisé, de manière industrielle, par brasage, et non par soudure par point.Due to the complexity of heat exchangers and the small authorized dimensions, the assembly of the constituent elements of a heat exchanger is carried out, industrially, by brazing, and not by spot welding.

Comme représenté sur la Figure 1, les plaques 2, 3 d'un échangeur 1 de chaleur de l'état de l'art sont ainsi typiquement assemblées par brasage au carter 5 de l'échangeur 1, c'est-à-dire assemblées par un apport de métal à l'état liquide sur les pièces métalliques à assembler.As shown on the Figure 1 , the plates 2, 3 of a state-of-the-art heat exchanger 1 are thus typically assembled by brazing to the casing 5 of the exchanger 1, that is to say assembled by adding metal to the liquid state on the metal parts to be assembled.

Ces plaques 2, 3 étant brasées sur toute leur surface en contact avec les parois de carter 5, le métal ainsi apporté forme une ligne 4 continue.These plates 2, 3 being brazed over their entire surface in contact with the housing walls 5, the metal thus provided forms a continuous line 4.

Il en résulte un manque de flexibilité de l'ensemble ainsi obtenu.This results in a lack of flexibility of the assembly thus obtained.

Or, il est connu que les échangeurs 1 de chaleur sont soumis à des sollicitations en service à la fois fortes et de natures diverses : contraintes thermomécaniques et réactions chimiques avec des environnements plus ou moins agressifs.However, it is known that the heat exchangers 1 are subjected to stresses in service that are both strong and of various natures: stresses thermomechanical and chemical reactions with more or less aggressive environments.

Notamment, on observe l'existence de chocs thermiques qui sont provoqués par une variation soudaine et importante de la température, par exemple lors de l'ouverture des vannes équipées de capteurs, permettant de mesurer la température du moteur, et laissant passer l'eau de refroidissement du moteur, froide, dans le circuit d'admission d'air moteur, plus chaud.In particular, we observe the existence of thermal shocks which are caused by a sudden and significant variation in temperature, for example when opening valves equipped with sensors, making it possible to measure the temperature of the engine, and allowing water to pass engine coolant, cold, in the engine air intake circuit, warmer.

Ces chocs thermiques conduisent à des phénomènes de dilation/contraction des plaques 2, 3 de l'échangeur 1 de chaleur, appelées cycles thermiques.These thermal shocks lead to phenomena of expansion/contraction of the plates 2, 3 of the heat exchanger 1, called thermal cycles.

Toutefois, le manque de flexibilité de ces plaques 2, 3 ainsi brasées, engendre des contraintes importantes, lesquelles peuvent conduire à l'apparition de zones de rupture dans les plaques 2, 3.However, the lack of flexibility of these plates 2, 3 thus brazed, generates significant stresses, which can lead to the appearance of rupture zones in the plates 2, 3.

On observe alors que ces zones de rupture peuvent engendrer des fuites de fluide caloporteur.It is then observed that these rupture zones can cause heat transfer fluid leaks.

Il existe donc un besoin pressant pour une plaque pour échangeur de chaleur dont le design original assure une plus grande flexibilité de la plaque.There is therefore a pressing need for a plate for a heat exchanger whose original design ensures greater flexibility of the plate.

La présente invention vise donc à pallier les inconvénients de l'art antérieur et à répondre aux contraintes ci-dessus énoncées en proposant une plaque pour échangeur, simple dans sa conception et dans son mode opératoire, fiable et économique, laquelle permet de limiter, voire d'éviter, l'apparition dans la plaque de zones de rupture liées à des chocs thermiques.The present invention therefore aims to overcome the drawbacks of the prior art and to respond to the constraints set out above by proposing a plate for an exchanger, simple in its design and in its mode of operation, reliable and economical, which makes it possible to limit, or even to avoid the appearance in the plate of rupture zones linked to thermal shocks.

Un autre objet de la présente invention est une telle plaque pour échangeur de chaleur assurant une prise d'appui sur les parois opposées du carter en vue de son assemblage par brasage avec une plaque complémentaire pour former un conduit de circulation d'un fluide caloporteur.Another object of the present invention is such a plate for a heat exchanger providing a bearing on the opposite walls of the casing with a view to its assembly by brazing with a complementary plate to form a conduit for the circulation of a heat transfer fluid.

La présente invention vise également un échangeur de chaleur comprenant au moins une telle plaque pour échangeur, de manière à présenter une fiabilité renforcée.The present invention also relates to a heat exchanger comprising at least one such plate for an exchanger, so as to present enhanced reliability.

A cet effet, l'invention concerne une plaque pour échangeur de chaleur selon la revendication 1, ladite plaque comprenant un bord d'accouplement à une autre plaque.To this end, the invention relates to a plate for a heat exchanger according to claim 1, said plate comprising an edge for coupling to another plate.

Selon l'invention, ledit bord comporte au moins une pièce fusible pour l'assemblage de ce bord d'accouplement, avec au moins une paroi de carter, ladite au moins une pièce fusible étant configurée pour être séparée du reste dudit bord d'accouplement par dilatation/contraction différentielle entre ladite plaque et ladite au moins une paroi de carter sur laquelle elle est destinée à être assemblée.According to the invention, said edge comprises at least one fusible part for assembling this coupling edge, with at least one casing wall, said at least one fusible part being configured to be separated from the rest of said coupling edge by differential expansion/contraction between said plate and said at least one casing wall on which it is intended to be assembled.

La plaque pour échangeur de chaleur peut présenter toute forme telle que carrée, rectangulaire, ...The heat exchanger plate can have any shape such as square, rectangular, ...

Par « bord » de la plaque, on entend la partie périphérique de cette plaque délimitant une zone de cette plaque pour la circulation d'un fluide caloporteur, cette partie périphérique présentant une face supérieure, une tranche et une face inférieure.By “edge” of the plate, is meant the peripheral part of this plate delimiting a zone of this plate for the circulation of a heat transfer fluid, this peripheral part having an upper face, an edge and a lower face.

Dans différents modes de réalisation particuliers de cette plaque, chacun ayant ses avantages particuliers et susceptibles de nombreuses combinaisons techniques possibles selon les revendications 1-14:

  • ladite ou au moins une desdites pièces fusibles est portée par un coin de ladite plaque ou par une portion du bord d'accouplement, proche de ce coin, ladite portion présentant une largeur (h1) supérieure strictement à la largeur (h2) de ce bord d'accouplement, dans une partie médiane de ladite plaque.
In different particular embodiments of this plate, each having its particular advantages and capable of numerous possible technical combinations according to claims 1-14:
  • 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 (h 1 ) strictly greater than the width (h 2 ) of this coupling edge, in a middle part of said plate.

A titre purement illustratif, pour une largeur h2 de l'ordre de 3 mm, cette partie peut s'étendre sur une distance comprise entre 0 et 30 mm, si une largeur h1 minimale de 5 mm est garantie dans cette partie.For purely illustrative purposes, for a width h 2 of the order of 3 mm, this part can extend over a distance of between 0 and 30 mm, if a minimum width h 1 of 5 mm is guaranteed in this part.

De préférence, chaque pièce fusible est portée par un coin de la plaque ou une portion du bord d'accouplement proche de ce bord, car c'est en ces endroits de la plaque que la rupture de la pièce fusible est la mieux maîtrisée et que la distance séparant la pièce fusible de la zone de la plaque où l'on cherche à préserver l'étanchéité, est la plus importante.Preferably, 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 places 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 sealing is the greatest.

Par ailleurs, on constate que c'est dans les coins de la plaque que les contraintes thermiques sont les plus importantes. Un positionnement d'une pièce fusible dans un coin de la plaque assure ainsi une rupture, ou "cassure" de celle-ci, le plus rapidement possible, c'est à dire dès les premiers cyclages thermiques.

  • deux coins opposés de ladite plaque comporte chacun une pièce fusible pour l'assemblage dudit bord d'accouplement, avec une même paroi de carter ou des parois opposées de carter.
Furthermore, it is found that it is in the corners of the plate that the thermal stresses are the greatest. Positioning a fusible part in a corner of the plate thus ensures rupture, or "breaking" thereof, as quickly as possible, that is to say from the first thermal cycles.
  • two opposite corners of said plate each comprises a fusible part for assembling said coupling edge, with the same casing wall or opposite casing walls.

Dans ce dernier mode de réalisation, on forme ainsi avantageusement des points d'appui de la plaque sur les parois opposées de carter en vue de l'assemblage de cette plaque avec une plaque complémentaire pour former un conduit de circulation d'un fluide caloporteur.

  • ledit bord d'accouplement, présentant une largeur (h2) dans une partie médiane de ladite plaque, supérieure ou égale à une largeur prédéterminée de sécurité (hs) pour laquelle une rupture de pièce fusible est non propagée au-delà dudit bord d'accouplement, ledit bord comporte une pièce fusible dans ladite partie médiane de ladite plaque.
In this latter embodiment, bearing points of the plate are thus advantageously formed on the opposite walls of the casing with a view to assembling this plate with a complementary plate to form a conduit for the circulation of a heat transfer fluid.
  • said coupling edge, having a width (h 2 ) in a middle part of said plate, greater than or equal to a predetermined safety width (h s ) for which a fuse part rupture is not propagated beyond said edge d coupling, said edge has a fusible part in said middle part of said plate.

A titre purement illustratif, cette largeur prédéterminée de sécurité hs est égale à 5 mm.For purely illustrative purposes, this predetermined safety width h s is equal to 5 mm.

Il est ainsi possible de positionner une pièce fusible en dehors d'un coin ou d'une zone du bord proche de ce coin, par exemple dans une partie médiane de la plaque, à la condition que la largeur du bord d'accouplement, soit suffisante pour éviter toute propagation d'une rupture de la pièce fusible au-delà de ce bord.

  • chaque pièce fusible comporte une zone prédéterminée d'affaiblissement de manière à provoquer sa séparation du bord d'accouplement.
It is thus possible to position a fusible part 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 fuse part rupture beyond this edge.
  • each fuse piece has a predetermined zone of weakening so as to cause its separation from the mating edge.

Cette configuration de la pièce fusible permet d'atteindre un autre objectif de la présente invention, à savoir obtenir une rupture « nette », ou séparation propre, de la pièce fusible du bord d'accouplement, afin que cette rupture n'ait pas tendance à se propager au-delà du bord d'accouplement, c'est-à-dire dans la région de la plaque délimitée par ce bord et dans laquelle est destiné à circuler un fluide caloporteur. Ledit bord d'accouplement s'étendant dans un plan principal (P), la zone prédéterminée d'affaiblissement est avantageusement contenue dans ce plan principal (P), en appartenant, de préférence, à ce bord.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 mating edge, so that this break does not tend to to propagate beyond the coupling edge, that is to say in the region of the plate delimited by this edge and in which a heat transfer fluid is intended to circulate. Said coupling edge extending in a main plane (P), the predetermined weakening zone is advantageously contained in this main plane (P), preferably belonging to this edge.

De manière avantageuse, ladite ou au moins une pièce fusible comporte une ligne de moindre résistance mécanique de manière à se rompre le long de cette ligne. Cette ligne de moindre résistance mécanique présente donc une résistance à la rupture inférieure à celle du matériau métallique l'entourant.Advantageously, said or at least one fusible part comprises a line of lesser mechanical resistance so as to break along this line. This line of lesser mechanical resistance therefore has a breaking strength lower than that of the metallic material surrounding it.

Avantageusement, cette ligne de moindre résistance est destinée à provoquer la séparation, de préférence en un seul morceau, de la partie de la pièce fusible liée à cette ligne de moindre résistance.Advantageously, this line of least resistance is intended to cause the separation, preferably in one piece, of the part of the fusible part linked to this line of least resistance.

A titre purement illustratif, il peut s'agir d'orifices disposés linéairement, ou encore de manière rectiligne, pour former une « ligne de matière ajourée ».For purely illustrative purposes, these may be orifices arranged linearly, or even rectilinearly, to form a “line of perforated material”.

Alternativement, ou en supplément, ladite ou au moins une pièce fusible comporte au moins une encoche.Alternatively, or in addition, said or at least one fusible part comprises at least one notch.

A titre d'exemple, ladite pièce fusible comporte une première ligne de moindre résistance, deux encoches étant situées de part et d'autre de cette ligne de moindre résistance.By way of example, said fusible part comprises a first line of least resistance, two notches being located on either side of this line of least resistance.

Encore de manière alternative, cette ligne de moindre résistance est obtenue par un amincissement local.

  • chaque pièce fusible comporte une patte reliée par ladite zone prédéterminée d'affaiblissement au bord d'accouplement, ladite patte étant incurvée pour présenter une surface d'assemblage, de préférence plane ou sensiblement plane, destinée à être assemblée, par brasage, à une paroi de carter.
Still alternatively, this line of least resistance is obtained by local thinning.
  • each fuse piece comprises a lug connected by said predetermined zone of weakening to the coupling edge, said lug being curved to present an assembly surface, preferably flat or substantially flat, intended to be assembled, by brazing, to a wall of carter.

Ledit bord d'accouplement étant contenu dans un plan principal (P), cette surface d'assemblage s'étend avantageusement de manière perpendiculaire au plan principal (P).

  • ladite plaque comprend une entrée de fluide et une sortie de fluide, chacune des entrée et sortie de fluide présentant un collet.
Said coupling edge being contained in a main plane (P), this assembly surface advantageously extends perpendicular to the main plane (P).
  • said plate includes a fluid inlet and a fluid outlet, each of the fluid inlets and outlets having a collar.

A titre purement illustratif, ces entrée et sortie de fluide sont placées dans une partie médiane ou sensiblement médiane de la plaque. Alternativement, ces entrée et sortie de fluide sont placées sur un même côté de la plaque.For purely illustrative purposes, these fluid inlets and outlets are placed in a middle or substantially middle part of the plate. Alternatively, these fluid inlets and outlets are placed on the same side of the plate.

Une telle plaque comporte au moins une pièce fusible sur au moins un de ses côtés. De préférence, des pièces fusibles sont placées sur deux des côtés opposés de cette plaque.Such a plate comprises at least one fusible part on at least one of its sides. Preferably, fuse pieces are placed on two of the opposite sides of this plate.

De manière alternative, un premier côté de cette plaque comprend une entrée de fluide et une sortie de fluide placées en tête de plaque.Alternatively, a first side of this plate comprises a fluid inlet and a fluid outlet placed at the head of the plate.

Dans cette configuration de la plaque, ce premier côté comporte un rebord continu et le côté opposé de ladite plaque audit premier côté comporte au moins une pièce fusible, de préférence, deux pièces fusibles.

  • chaque pièce fusible présente une surface d'assemblage sur une paroi de carter dont la dimension longitudinale est comprise entre 3 et 20 mm.
  • ladite plaque est d'une seule pièce et réalisée dans un matériau métallique tel qu'en aluminium ou en un alliage d'aluminium.
In this configuration of the plate, this first side comprises a continuous rim and the opposite side of said plate to said first side comprises at least one fuse piece, preferably two fuse pieces.
  • each fusible part has an assembly surface on a casing 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.

Les parois de carter sont réalisées dans un matériau métallique, de préférence, en aluminium ou un alliage d'aluminium.The housing walls are made of a metallic material, preferably aluminum or an aluminum alloy.

La présente invention concerne aussi une paire de plaques pour échangeur telles que décrites précédemment, les bords d'accouplement de ces plaques étant destinés à être assemblés pour délimiter un conduit de circulation d'un fluide caloporteur entre ces plaques, chaque bord d'accouplement comprenant au moins une pièce fusible, lesdites pièces fusibles étant agencées sur les bords desdites plaques de sorte qu'après assemblage de celles-ci, deux pièces fusibles appartenant à des plaques distinctes, sont placées en regard l'une de l'autre ou sont décalées l'une par rapport à l'autre.The present invention also relates to a pair of plates for an exchanger as described previously, the coupling edges of these plates being intended to be assembled to delimit a conduit for the circulation of a heat transfer fluid between these plates, each coupling edge comprising at least one fuse piece, said fuse pieces being arranged on the edges of said plates so that after assembly of the latter, two fuse pieces belonging to separate plates are placed facing each other or are offset one in relation to the other.

Dans ce dernier cas, les pièces fusibles sont avantageusement placées dans le prolongement l'une de l'autre.In the latter case, the fusible parts are advantageously placed in the extension of one another.

De préférence, chaque pièce fusible est placée uniquement dans un coin desdites plaques.Preferably, each fusible part is placed only in one corner of said plates.

La présente invention concerne également un échangeur de chaleur à plaques comportant deux plaques telles que décrites précédemment, ces deux plaques étant assemblées entre elles pour délimiter un conduit de circulation d'un fluide caloporteur entre ces plaques, au moins un bord de l'ensemble ainsi formé, relié à une paroi de carter comporte, pour chacune de ces plaques, au moins une pièce fusible, lesdites ou au moins certaines desdites pièces fusibles placées sur ce bord étant positionnées en regard l'une de l'autre ou étant décalées l'une par rapport à l'autre.The present invention also relates to a plate heat exchanger comprising two plates as described previously, these two plates being assembled together to delimit a conduit for the circulation of a heat transfer fluid between these plates, at least one edge of the assembly as well formed, connected to a casing 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 from one another.

Dans ce dernier cas, les pièces fusibles sont avantageusement placées dans le prolongement l'une de l'autre. De manière avantageuse, le décalage des pièces fusibles placées sur un même coin des plaques ainsi assemblées autorise une augmentation de la surface d'assemblage de chaque pièce fusible destinée à être assemblée par brasage à la paroi de carter.In the latter case, the fusible parts are advantageously placed in the extension of one another. Advantageously, the offset of the fuse parts placed on the same corner of the plates thus assembled allows an increase in the assembly surface of each fuse part intended to be assembled by brazing to the casing wall.

Notamment, elle concerne un échangeur de chaleur à plaques brasées.In particular, it relates to a heat exchanger with brazed plates.

Cet échangeur de chaleur peut comporter un faisceau d'échange de chaleur entre un premier fluide et un second fluide, et un carter à l'intérieur duquel est placé ce faisceau d'échange.This heat exchanger may comprise a bundle for exchanging heat between a first fluid and a second fluid, and a casing inside which this exchange bundle is placed.

A titre purement illustratif, le premier fluide peut être de l'air et le second fluide peut être un liquide de refroidissement.For purely illustrative purposes, the first fluid may be air and the second fluid may be a coolant.

Le second fluide peut être par exemple un mélange d'eau et de Glycol. L'air peut par exemple être de l'air chargé.The second fluid may for example be a mixture of water and glycol. The air can for example be charged air.

D'autres avantages, buts et caractéristiques particulières de la présente invention ressortiront de la description qui va suivre, faite, dans un but explicatif et nullement limitatif, en regard des dessins annexés, dans lesquels :

  • la Figure 1 est une vue partielle et élargie d'un échangeur de chaleur de l'état de l'art, montrant notamment une ligne d'assemblage par brasage entre une plaque de l'échangeur et la paroi correspondante du carter ;
  • la Figure 2 est une vue en perspective d'une plaque pour échangeur de chaleur selon un premier mode de réalisation de l'invention ;
  • la Figure 3 est une vue partielle et élargie de la plaque de la Fig. 2 montrant un coin de celle-ci, équipé d'une pièce fusible ;
  • la Figure 4 est une représentation schématique et en vue de dessus, du coin de la plaque de la Fig. 3, une zone de la plaque susceptible de porter une pièce fusible, incluant un coin, est représentée en pointillé ;
  • la Figure 5 montre le coin de la plaque de la Fig. 3, lorsqu'elle est soumise à des cycles thermiques ;
  • la Figure 6 montre une vue partielle de deux plaques pour échangeur de chaleur superposées en vue de leur assemblage pour former une paire de plaques ;
  • la Figure 7 est une vue partielle d'une paire de plaques, les coins des bords transversaux inférieurs de ces plaques ainsi superposées comportant chacun une pièce fusible; les pièces fusibles sur chaque coin étant décalées entre les deux plaques en étant placées dans le prolongement l'une de l'autre;
  • la Figure 8 est une vue en perspective d'une plaque pour échangeur de chaleur selon un deuxième mode de réalisation de l'invention;
  • la Figure 9 représente schématiquement une plaque pour échangeur de chaleur selon un troisième mode de réalisation de l'invention ;
Other advantages, aims and particular characteristics of the present invention will emerge from the description which will follow, made, for the purpose of explanation and in no way limiting, with regard to the appended drawings, in which:
  • there Figure 1 is a partial and enlarged view of a state-of-the-art heat exchanger, showing in particular an assembly line by brazing between a plate of the exchanger and the corresponding wall of the casing;
  • there Figure 2 is a perspective view of a heat exchanger plate according to a first embodiment of the invention;
  • there Figure 3 is a partial and enlarged view of the plate of the Fig. 2 showing a corner of it, fitted with a fusible part;
  • there Figure 4 is a schematic representation and in plan view, of the corner of the plate of the Fig. 3 , an area of the plate likely to carry a fusible part, including a corner, is shown in dotted lines;
  • there Figure 5 shows the corner of the plate of the Fig. 3 , when subjected to thermal cycles;
  • there Figure 6 shows a partial view of two superimposed heat exchanger plates for their assembly to form a pair of plates;
  • there Picture 7 is a partial view of a pair of plates, the corners of the lower transverse edges of these plates thus superimposed each comprising a fusible part; the fusible parts on each corner being offset between the two plates by being placed in the extension of one another;
  • there Figure 8 is a perspective view of a heat exchanger plate according to a second embodiment of the invention;
  • there Figure 9 schematically represents a plate for a heat exchanger according to a third embodiment of the invention;

Tout d'abord, on note que les figures ne sont pas à l'échelle.First, note that the figures are not to scale.

Les Figures 2 à 5 représentent de manière schématique une plaque 10 pour échangeur de chaleur selon un premier mode de réalisation de la présente invention.THE Figures 2 to 5 schematically represent a plate 10 for a heat exchanger according to a first embodiment of the present invention.

Cette plaque 10 qui est d'un seul tenant, est par exemple réalisée en aluminium ou dans un alliage d'aluminium.This plate 10 which is in one piece, is for example made of aluminum or an aluminum alloy.

Cette plaque 10 est de forme globalement rectangulaire.This plate 10 is generally rectangular in shape.

Elle comporte un bord 11 d'accouplement et une région 12 concave délimitée par ce bord.It comprises a coupling edge 11 and a concave region 12 delimited by this edge.

Cette plaque 10 comporte sur un premier bord 13 transversal, ou côté s'étendant dans une direction transversale, une entrée 14 de fluide pour introduire un fluide et une sortie 15 de fluide pour décharger le fluide, lesquelles sont placées en tête de plaque.This plate 10 comprises 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.

Cette plaque 10 comporte également une nervure 16 centrale sur la surface de sa paroi intérieure, qui définit une saillie pour générer une séparation sur la surface de la paroi intérieure de la plaque 10 afin de définir un circuit en « U » entre les entrée 14 et sortie 15 de fluide.This plate 10 also includes a central rib 16 on the surface of its interior wall, which defines a projection to generate a separation on the surface of the interior wall of the plate 10 in order to define a "U" circuit between the inlets 14 and outlet 15 of fluid.

En outre, cette plaque 10 comporte une pluralité de protubérances 17 placées dans le passage de circulation du fluide sur sa paroi intérieure, lesquelles sont destinées à perturber la circulation du fluide.In addition, this plate 10 comprises a plurality of protuberances 17 placed in the fluid circulation passage on its inner wall, which are intended to disturb the fluid circulation.

Cette plaque 10 présente des bords longitudinaux 18 de dimension juste inférieure à celle des faces supérieure et inférieure du carter et des bords 13 transversaux de dimension égale ou sensiblement égale à celle des parois latérales du carter de l'échangeur (non représenté).This plate 10 has longitudinal edges 18 of dimension just smaller than that of the upper and lower faces of the housing and transverse edges 13 of dimension equal or substantially equal to that of the side walls of the housing of the exchanger (not shown).

Cette plaque 10 comporte également quatre coins 19, un seul étant représenté sur les Fig. 3 à 5. Chaque coin 19 définit un bord entourant une partie desdites nervures 14.This plate 10 also comprises four corners 19, only one being represented on the Fig. 3 to 5 . Each corner 19 defines an edge surrounding part of said ribs 14.

Le premier bord 13 transversal de la plaque 10, recevant les entrée et sortie de fluide, comporte un rebord continu pour son assemblage à une paroi de carter tandis que les deux coins 19 du bord transversal opposé à ce premier bord 13, comprennent chacun une pièce 20 fusible.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 to this first edge 13, each comprise a part 20 fuse.

Le premier bord 13 transversal de la plaque 10 permet de garantir l'étanchéité au niveau des entrée et sortie de fluide.The first transverse edge 13 of the plate 10 makes it possible to guarantee sealing at the fluid inlet and outlet.

Chaque pièce 20 fusible comporte ici une patte 21 incurvée présentant une surface 22 d'assemblage, et une zone prédéterminée 23 d'affaiblissement reliant cette patte 21 incurvée au coin 19 correspondant de la plaque 10 de manière à permettre la séparation de cette patte 21 incurvée du coin 19 correspondant.Each fuse piece 20 here comprises a curved leg 21 having an assembly surface 22, and a predetermined weakening zone 23 connecting this curved leg 21 to the corresponding corner 19 of the plate 10 so as to allow the separation of this curved leg 21 from the corresponding corner 19.

Les surfaces 22 d'assemblage des pièces 20 fusibles étant planes, les parois latérales opposées du carter sont également planes au niveau des zones d'assemblage de ces surfaces 22 d'assemblage avec les parois de carter.Since the assembly surfaces 22 of the fuse parts 20 are flat, the opposite side walls of the casing are also flat at the level of the assembly zones of these assembly surfaces 22 with the casing walls.

Cette zone prédéterminée 23 d'affaiblissement est ici obtenue par découpe d'une partie des bords latéraux du corps de la pièce 20 fusible, ces encoches permettant de générer une amorce de rupture.This predetermined zone 23 of weakening is here obtained by cutting out part of the side edges of the body of the fuse part 20, these notches making it possible to generate an incipient fracture.

Ces encoches sont ici rectangulaires ou sensiblement rectangulaires.These notches are here rectangular or substantially rectangular.

La profondeur des encoches est déterminée de sorte que la séparation soit réalisée après quelques cycles thermiques de dilatation/contraction de cette plaque 10.The depth of the notches is determined so that the separation is achieved after a few thermal cycles of expansion/contraction of this plate 10.

Dans le cas présent, et à titre purement illustratif, le plus grand côté de cette encoche est d'une dimension inférieure ou égale à 1mm et son petit côté est d'une dimension inférieure ou égale à 0,5 mm.In the present case, and purely by way of illustration, the longest side of this notch has a dimension less than or equal to 1 mm and its short side has a dimension less than or equal to 0.5 mm.

La Figure 5 montre, par simulation numérique, les bons résultats obtenus avec cette plaque 10 pour échangeur de chaleur lorsqu'elle est soumise à des cycles thermiques.There Figure 5 shows, by numerical simulation, the good results obtained with this plate 10 for heat exchanger when it is subjected to thermal cycles.

On observe que les contraintes sont concentrées au niveau de la zone prédéterminée 23 d'affaiblissement.It is observed that the stresses are concentrated at the level of the predetermined zone 23 of weakening.

Après rupture des pièces 20 fusibles, la plaque 10 pour échangeur de chaleur est désolidarisée en ses côtés comprenant des pièces fusibles.After the fuse parts 20 have broken, the plate 10 for the heat exchanger is separated at its sides comprising the fuse parts.

Les Figures 6 et 7 illustrent l'assemblage d'une plaque 10 telle que décrite précédemment, avec une autre plaque 24 pour définir une paire de plaques délimitant entre elles un passage pour l'écoulement d'un fluide. Les éléments des Figures 6 et 7 portant les mêmes références que ceux décrits aux Figures 2 à 5, représentent les mêmes objets, lesquels ne seront pas décrits de nouveau ci-après.THE Figures 6 and 7 illustrate the assembly of a plate 10 as described previously, with another plate 24 to define a pair of plates defining between them a passage for the flow of a fluid. The elements of Figures 6 and 7 bearing the same references as those described in Figures 2 to 5 , represent the same objects, which will not be described again below.

Le côté de cette paire de plaques 10, 24 ainsi représenté, comporte au niveau de chacun de ses coins 19 opposés, deux pièces 20, 25 fusibles.The side of this pair of plates 10, 24 thus represented, comprises at each of its opposite corners 19, two pieces 20, 25 fuses.

Les deux pièces 20, 25 fusibles de chaque coin 19 de la paire appartiennent chacune à une plaque 10, 24 différente et sont décalées l'une par rapport à l'autre tout en étant dans le prolongement l'une de l'autre.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.

La Figure 8 est une vue en perspective d'une plaque 30 pour échangeur de chaleur selon un deuxième mode de réalisation de l'invention.There Picture 8 is a perspective view of a plate 30 for a heat exchanger according to a second embodiment of the invention.

Cette plaque 30 comprend une entrée 31 de fluide et une sortie 32 de fluide, chacune des entrée et sortie de fluide présentant un collet et une forme oblongue.This plate 30 comprises a fluid inlet 31 and a fluid outlet 32, each of the fluid inlets and outlets having a collar and an oblong shape.

La plaque 30 ayant une longueur (L) et une largeur (h), ces entrée et sortie de fluide 31, 32 sont placées sur la longueur (L) à une distance des bords latéraux de la plaque correspondant à L/2, ou sensiblement L/2.The plate 30 having a length (L) and a width (h), these fluid inlets and outlets 31, 32 are placed along the length (L) at a distance from the side edges of the plate corresponding to L/2, or substantially L/2.

Des protubérances 33 permettent de perturber la circulation du fluide tandis que des nervures 34 donnent à des passages d'écoulement de fluide un trajet sinueux présentant des demi-tours entre les entrée et sortie de fluide 31, 32.Protuberances 33 make it possible to disturb the circulation of the fluid while ribs 34 give the fluid flow passages a sinuous path having half-turns between the fluid inlets and outlets 31, 32.

Cette plaque 30 comporte des pièces 35-38 fusibles sur les deux côtés de celle-ci s'étendant selon une direction transversale.This plate 30 comprises fuse parts 35-38 on both sides thereof extending in a transverse direction.

La Figure 9 représente schématiquement une plaque pour échangeur de chaleur selon un troisième mode de réalisation de l'invention.There Picture 9 schematically represents a plate for a heat exchanger according to a third embodiment of the invention.

Cette plaque 40 comporte une entrée 41 de fluide et une sortie 42 de fluide placées sur un même côté de la plaque, ce côté 43 s'étendant selon une direction transversale. Chacune de ces entrée 41 et sortie 42 de fluide présente un collet et une forme oblongue.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 inlets 41 and outlets 42 has a collar and an oblong shape.

Cette plaque 40 comporte une pièce 44 fusible dans chaque coin 45 de son côté opposé à celui 43 s'étendant dans une direction transversale où les entrée et sortie de fluide sont situées.This plate 40 has a fusible part 44 in each corner 45 of its side opposite to that 43 extending in a transverse direction where the fluid inlet and outlet are located.

Ce côté 43 s'étendant dans une direction transversale comporte un rebord continu destiné à être brasé à une paroi de carter.This side 43 extending in a transverse direction comprises a continuous rim intended to be brazed to a casing wall.

L'étanchéité des entrée et sortie de fluide étant assurée par un collet, le côté 43 peut alternativement recevoir des pièces fusibles 44.The tightness of the fluid inlets and outlets being ensured by a collar, the side 43 can alternatively receive fuse parts 44.

Claims (14)

  1. Plate for a heat exchanger, said plate comprising an edge (11) for coupling to another plate, characterized in that said edge has at least one fusible component (20) for joining this coupling edge (11) to at least one casing wall, said at least one fusible component (20) being configured to be separated from the rest of said coupling edge by differential expansion/contraction between said plate and said at least one casing wall to which it is intended to be joined, and in that each fusible component (20) has a predetermined weakening region (19) so as to bring about separation thereof from the coupling edge (11) .
  2. Plate according to Claim 1, characterized in that said fusible component or at least one of said fusible components is carried by a corner (19) of said plate or by a portion of said coupling edge that is close to this corner (19), said portion having a width (h1) that is strictly greater than the width (h2) of said coupling edge (11) in a median part of said plate.
  3. Plate according to Claim 1 or 2, characterized in that two opposite corners (19) of said plate each have a fusible component (20) for joining said coupling edge (11) to a single casing wall or opposite casing walls.
  4. Plate according to any one of Claims 1 to 3, characterized in that, since said coupling edge (11) has a width (h2) in a median part of said plate that is greater than or equal to a predetermined safety width for which a break in the fusible component does not propagate beyond said coupling edge (11), said edge (11) has a fusible component (20) in said median part of said plate.
  5. Plate according to any one of Claims 1 to 4, characterized in that said or at least one fusible component (20) has a line (23) of lower mechanical strength.
  6. Plate according to any one of Claims 1 to 5, characterized in that said or at least one fusible component (20) has at least one notch.
  7. Plate according to any one of Claims 1 to 6, characterized in that said plate (30) comprises a fluid inlet (31) and a fluid outlet (32), each of the fluid inlet and fluid outlet having a collar.
  8. Plate according to Claim 7, characterized in that fusible components (35-38) are placed on two of the opposite sides of said plate.
  9. Plate according to any one of Claims 1 to 6, characterized in that a first side (13) of said plate (10) comprises a fluid inlet (14) and a fluid outlet (15) that are placed at the head of the plate.
  10. Plate according to Claim 9, characterized in that said first side has a continuous lip and the opposite side of said plate from said first side has at least one fusible component (20).
  11. Plate according to any one of Claims 1 to 10, characterized in that each fusible component (20) has a joining surface (22) that is intended to be joined to a casing wall, the longitudinal dimension of which is between 3 and 20 mm.
  12. Plate according to any one of Claims 1 to 11, characterized in that said plate (10) is in one piece and is made from a metallic material, such as aluminium or an aluminium alloy.
  13. Pair of plates for a heat exchanger, according to any one of Claims 1 to 12, the coupling edges (11) of these plates being intended to be joined so as to delimit a duct for circulation of a heat transfer fluid between these plates, each coupling edge (11) comprising at least one fusible component (20), said fusible components (20) being arranged at the edges (11) of said plates such that, after the latter have been joined, two fusible components (20) belonging to separate plates are placed next to one another or are offset relative to one another.
  14. Plate-type heat exchanger having at least two plates according to any one of Claims 1 to 12, said two plates being joined together so as to delimit a duct for circulation of a heat transfer fluid between these plates, at least one edge of the assembly thus formed, which is connected to a casing wall, having, for each of these plates, at least one fusible component (20), said or at least some of said fusible components that are placed at this edge being positioned next to one another or being offset relative to one another.
EP18708332.4A 2018-01-23 2018-01-23 Heat exchanger plate, and heat exchanger comprising such a plate Active EP3743667B1 (en)

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 EP3743667A1 (en) 2020-12-02
EP3743667B1 true 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)

* Cited by examiner, † Cited by third party
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
EP4023991A1 (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

Family Cites Families (16)

* Cited by examiner, † Cited by third party
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
AU2003227571A1 (en) * 2002-04-09 2003-10-20 Behr Gmbh And Co. 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

Also Published As

Publication number Publication date
EP3743667A1 (en) 2020-12-02
WO2019145022A1 (en) 2019-08-01
US20210071961A1 (en) 2021-03-11
US12013189B2 (en) 2024-06-18
CN111886470A (en) 2020-11-03
CN111886470B (en) 2022-06-28

Similar Documents

Publication Publication Date Title
EP3743667B1 (en) Heat exchanger plate, and heat exchanger comprising such a plate
EP2310788B1 (en) Heat exchanger comprising a heat exchanger bundle and a housing
EP2310787B1 (en) Heat exchanger comprising a heat exchanger bundle and a housing
FR3031140B1 (en) HEAT RECOVERY DEVICE AND EXHAUST LINE EQUIPPED WITH SUCH A DEVICE
EP2912396B1 (en) Heat exchanger, particularly for a motor vehicle
WO2011023825A1 (en) Heat exchanger
EP2872847B1 (en) Heat exchanger, particularly motor vehicle engine charge air cooler
EP1780490B1 (en) Header box for heat exchanger
EP1994353B1 (en) Multiple-chamber exchanger with improved collector boxes
WO2013050393A1 (en) Plate for heat exchanger and heat exchanger equipped with such plates
FR3061952B1 (en) PLATE FOR HEAT EXCHANGER AND HEAT EXCHANGER COMPRISING SUCH PLATE
EP3384224B1 (en) Motor vehicle heat exchanger comprising a header tank
EP2253917A1 (en) Tube plate for a heat exchanger
EP3555545A1 (en) Heat exchanger with reinforcing plate
EP2852803B1 (en) Heat exchanger tube, heat exchanger tube bundle and heat exchanger comprising such a bundle
EP3499165A1 (en) Heat recovery device and corresponding manufacturing method
EP3532788A1 (en) Flange for heat exchanger of a motor vehicle
FR2911394A1 (en) Collector box for heat exchanger of motor vehicle, has intermediate plate with openings having dimensions larger than that of drillings or holes, and spacing unit providing space between ends of tubes and edges of openings
EP3394546B1 (en) Heat exchanger, in particular for a motor vehicle
EP3394544B1 (en) Heat exchanger, in particularl for a motor vehicle
FR3109210A1 (en) HEAT EXCHANGER, ESPECIALLY FOR MOTOR VEHICLES
FR2742536A1 (en) Automobile heat exchanger with double row of heat exchanging tubes
FR3045806A1 (en) THERMAL EXCHANGER, IN PARTICULAR FOR MOTOR VEHICLE

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200728

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230321

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230528

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018055404

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230816

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1600439

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231218

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231116

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231216

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231117

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240115

Year of fee payment: 7

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602018055404

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240124

Year of fee payment: 7

26N No opposition filed

Effective date: 20240517