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
  • F28D9/0056—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 with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates
• • 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
  • F28D9/0062—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 spaced plates with inserted elements
  • F28D9/0075—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 spaced plates with inserted elements the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
• • 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
  • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
  • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
  • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
  • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
  • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates
  • F28F9/0246—Arrangements for connecting header boxes with flow lines
  • F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
• • 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 the field of heat exchangers, and more particularly to such heat exchangers which are equipped with fluid flow disruptors.
• These heat exchangers can, for example, equip a vehicle. They are then arranged within this vehicle to allow the thermal regulation of a first fluid circulating in a first space thanks to the circulation of a second fluid in a second space distinct from the first space, so that the two fluids do not do not mix.
• the fluids can in particular be a refrigerant circulating within an air conditioning loop of the vehicle or even a cooling liquid intended to regulate the temperature of a heat engine.
• the fluids circulate by dissipating or absorbing thermal energy.
• the efficiency of heat exchangers and thermodynamic circuits is mainly determined by the thermal exchanges between the fluids flowing through them. It is therefore sought to design heat exchangers in which the thermal exchanges between the fluids circulating within them are optimized. To this end, it is known to equip heat exchangers with fluid flow disturbance devices, so as to increase the thermal exchanges between the fluids.
• a type of heat exchanger used in the automotive field is a plate exchanger, consisting of a stack of plates which are joined to each other by brazing and in which the spaces remaining between two contiguous plates after brazing define zones of circulation of fluids. These circulation zones are normally adapted to the fluids that pass through them, which implies the existence of several different types of plates.
• a technical problem lies in the fact that the means of production and storage of these plates are different, which complicates the logistical management during the manufacture of these plate heat exchangers.
• the present invention aims to overcome this drawback by proposing a heat exchanger plate whose fluid flow disturbance devices are configured to optimize the disturbance of the circulation of fluids on the one hand, while offering improved mechanical resistance within the heat exchanger that the plate equips, the dimension of these plates being configured so that it adapts, in particular by deformation, to the height of the fluid circulation space which is defined in particular by the devices of disruption.
• the main object of the present invention is thus a heat exchanger plate having the shape of a bathtub with two opposite longitudinal edges and connected to each other by two lateral edges, these longitudinal and lateral edges surrounding a bottom wall of the plate, an angle measured between this bottom wall and any one of the edges being between 103.5 0 and 109.5°, a thickness of the bottom wall being between 0.20 mm and 0.45 mm , the bottom wall being equipped with fluid flow disruptors, at least one of these fluid flow disruptors having a vertical dimension measured inside a volume delimited by the bottom wall and the edges between 0.75mm and 1.15mm.
• the heat exchanger plate according to the invention is configured for the circulation of fluid, such circulation making it possible to optimize heat exchanges via fluid flow disruptors.
• Fluid flow disturbances are deformations of the bottom wall.
• the fluid circulates within a volume of the heat exchanger plate, which is delimited on the one hand by a bottom wall, from which the fluid flow disruptors project, and on the other hand by longitudinal and lateral edges which extend in intersecting planes to the bottom wall. These intersecting planes are not necessarily perpendicular to the bottom wall, which gives the heat exchanger plate its bathtub shape.
• an angle measured between the bottom wall and any one of the edges is between 103.5 0 and 109.5 0 ; preferably, this angle is between 105 0 and 108 0 ; still preferably, this angle is between 105.5 0 and 107.5 ° -
• the bottom wall has a determined thickness, this thickness corresponding to its vertical dimension measured between a first face of the plate and a second face of the plate. Such a dimension is measured along a vertical direction which extends perpendicular to a plane in which the bottom wall mainly extends.
• the thickness of the plate is between 0.20 mm and 0.45 mm, and it is ideally between 0.27 mm and 0.35 mm.
• a vertical dimension of the fluid flow disruptors which corresponds to their size measured in the vertical direction, is also predetermined. It is thus between 0.75 mm and 1.15 mm. It is understood that the fluid flow disruptors protrude from a plane in which the bottom wall extends and extend inside a space delimited between the longitudinal and lateral edges, this is i.e. inside the volume of the heat exchanger plate.
• the vertical dimension of the fluid flow disruptors is a first vertical dimension of between 0.75 mm and 0.85 mm.
• the vertical dimension of the fluid flow disruptors is a second vertical dimension of between 1.05 mm and 1.15 mm.
• the fluid flow disruptors comprise at least one truncated dome extending between a base and a top.
• Such a shape of the truncated domes is appreciated according to a sectional view, which here corresponds to a vertical sectional plane.
• These truncated domes extend between a base and a vertex, their base corresponding to their portion which joins the bottom wall while their vertex is the most distant portion of this plane, the vertex forming a free end of the truncated dome, before brazing of the heat exchanger.
• the top of the truncated dome is a flat part, preferably extending parallel to the bottom wall.
• Fluid flow disturbances are deformations, for example by stamping, of the bottom wall.
• the mechanical resistance of the heat exchanger plate is notably dependent on the thinning of material obtained during the deformation of the bottom wall to obtain these fluid flow disruptors.
• a minimum diameter of the truncated dome measured at its top is 2 mm.
• the base of the truncated domes that is to say their seat, is circular and potentially has a diameter greater than its summit, which is also circular.
• the bottom wall is equipped with a separation strip which extends from one of the side edges towards the other side edge, without nevertheless being in contact with the latter
• the separation band has a sinusoidal shape.
• the separation strip has the effect of optimizing heat exchanges within the heat exchanger plate by increasing the path of the fluid in the volume of this plate.
• the invention further relates, according to a first embodiment, to a heat exchanger configured to carry out a heat exchange between a first fluid and a second fluid, this heat exchanger comprising first plates as mentioned previously, it is that is to say presenting the first vertical dimension, and second plates as mentioned previously, that is to say presenting the second vertical dimension.
• the first and second fluids carrying out heat exchange could be, respectively, a heat transfer fluid, of the dielectric type, a cooling fluid such as water or a mixture of water and ethylene glycol, and a refrigerant, such as Ri34a, Ri234yf or R744.
• a heat transfer fluid of the dielectric type
• a cooling fluid such as water or a mixture of water and ethylene glycol
• a refrigerant such as Ri34a, Ri234yf or R744.
• the first plates and second plates then constitute a heating body within the heat exchanger, this heating body corresponding to its portion where the fluids circulate and therefore where the heat exchanges take place.
• a first fluid and another second fluid circulate respectively between two adjacent plates, for example so as to achieve an alternation between circulation zone of the first fluid and circulation zone of the second fluid, these circulation zones being delimited vertically by the bottom walls of the adjacent plates.
• Such a heat exchanger here has first plates whose height of the fluid flow disturbers is between 0.75 and 0.85 mm, and second plates whose height of the fluid flow disturbers is between 1 .05 and 1.15 mm, installed alternately.
• spacings between the plates constituent therefore have variable vertical dimensions.
• Such a combination of first and second plates offers the heat exchanger dimensional flexibility with regard to its circulation zones. It is thus possible, for example, to obtain a circulation zone of the first fluid greater than a circulation zone of the second fluid, or vice versa.
• this angle is between 105.5 0 and 107.5 ° -
• Such an angle offers flexibility which makes it possible to deform the edge of the plates having the first vertical dimension or the second vertical dimension, while guaranteeing the seal between these plates at least at their edge.
• the heat exchanger presents a heating body, that is to say a portion dedicated to heat exchanges, consisting exclusively of first plates, that is to say of plates whose fluid flow disruptors have a vertical dimension of between 0.75 and 0.85 mm.
• the angle measured between the bottom wall and any one of the edges is between 106.5 0 and 109.5 ° - This angle is particularly suitable for ensuring the stacking of the plates having the first vertical dimension, as well as the seal between two plates, at least at their edges.
• the invention intends to cover a heat exchanger configured to carry out a heat exchange between a first fluid and a second fluid, this heat exchanger comprising a heating body solely made up of plates as mentioned previously, that is to say having the second vertical dimension.
• the heat exchanger presents a heating body, that is to say a portion dedicated to heat exchanges, made up exclusively of second plates, that is to say of plates whose fluid flow disruptors have a vertical dimension of between 1.05 and 1.15 mm.
• the angle measured between the bottom wall and any one of the edges is between 103.5 0 and 106.5 ° - This angle is particularly suitable for ensuring the stacking of the plates having the second vertical dimension, as well as the seal between two plates, at least at their edges.
• the plates are assembled by brazing.
• Brazing ensures in particular the sealing of the heat exchanger, the first fluid and the second fluid thus having distinct and non-communicating circulation zones, these zones being also sealed with respect to the external environment of the heat exchanger. heat.
• the plates are stacked in a stacking direction, the fluid flow disruptors of two adjacent plates in the stacking direction being arranged in a staggered manner.
• the stacking direction corresponds to the vertical direction; it is the direction in which the plates are superimposed on each other so that their respective longitudinal and lateral edges are in contact.
• What is meant here by “arranged in a staggered pattern” is that the fluid flow disruptors of a given plate are not vertically aligned with the fluid flow disruptors of the plate(s) adjacent to it, particularly when these plates are viewed. in a vertical section which passes through three fluid flow disruptors.
• the fluid flow disruptors of one plate do not overlap with the fluid flow disruptors of the adjacent plate when these plates are seen from above.
• the tops of the fluid flow disruptors of a plate are in contact with the bottom wall of the plate which is adjacent to it in the stacking direction.
• FIG. 1 illustrates, schematically, a heat exchanger according to the invention, in a perspective view
• FIG. 2 is a sectional view of the exchanger of Figure 1, according to a first embodiment
• FIG. 3 is a perspective view of two plates of the heat exchanger of Figure 1;
• FIG. 4 is a sectional view of the exchanger of Figure 1 according to the first embodiment, in a close-up view;
• FIG. 5 is a sectional view of the exchanger of Figure 1 according to a second embodiment, in a close-up view;
• the characteristics, variants and different embodiments of the invention can be associated with each other, according to various combinations, to the extent that they are not incompatible or exclusive with respect to each other.
• variants of the invention comprising only a selection of characteristics described subsequently in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage and/or to differentiate the invention. compared to the prior art.
• a longitudinal direction corresponds to a main extension direction of this plate, this longitudinal direction being parallel to a longitudinal axis L of a mark L, V, T illustrated in the figures.
• a vertical direction corresponds to a direction measured in line with a plane in which the bottom wall of the heat exchanger plate mainly extends, this vertical direction being parallel to a vertical axis V of the mark L, V, T and this vertical axis V being perpendicular to the longitudinal axis L.
• a transverse direction corresponds to a direction parallel to a transverse axis T of the reference L, V, T, this transverse axis T being perpendicular to the longitudinal axis L and to the vertical axis V.
• the stack of plates 10 is covered by a cheek 2, which constitutes an end plate of the heat exchanger 1.
• This cheek 2 is not shown in Figure 1. It has a rectangular shape and its surface is smooth.
• all of the plates 10 constitute a heating body of the heat exchanger 1, i.e. that is to say a portion within which thermal exchanges take place between the first fluid and the second fluid.
• the heat exchanger 1 comprises at a first of its longitudinal ends two connection pipes 4, 6 and at a second of its longitudinal ends a connection block 8. These pipes and connection block 4 , 6, 8 allow the routing of fluids to the fluid distribution openings of the heat exchanger 1 as well as their evacuation from these fluid distribution openings.
• Two of the plates 10 of the heat exchanger 1 according to the invention are shown separately in Figure 3, in a perspective view. These two plates 10 are adjacent and superimposed in the stacking direction E, one of the plates 10 having been pivoted by a half-turn relative to the other.
• the stacking of the plates 10 within the heat exchanger 1 is such that the first fluid circulates between two directly adjacent plates 10, the second fluid circulating between each of these two plates 10 and other plates which are attached to them. are directly adjacent.
• Each plate 10 of the heat exchanger 1 is intended to be assembled by brazing to the plates 10 which are adjacent to it in the stacking direction E and/or to the cheek 2, in order to ensure the sealing of the heat exchanger i.
• the plate 10 has a substantially rectangular shape as well as four rounded corners.
• the plate 10 is delimited by two longitudinal edges 12, 14 opposite each other and which extend in the longitudinal direction L, and two lateral edges 16, 18 opposite each other and perpendicular to these longitudinal edges 12, 14.
• One of the lateral edges 16, 18 is thus disposed at a first longitudinal end 20 of the plate 10, the other of these lateral edges 16, 18 being disposed at a second longitudinal end 22 of the plate 10. this.
• the longitudinal edges 12, 14 and lateral edges 16, 18 constitute a periphery or raised edge of the plate 10.
• the longitudinal edges 12, 14 and lateral edges 16, 18 delimit between them a volume of the plate 10.
• the volume of the plate 10 is further delimited in particular by a bottom wall 24, which extends mainly in a longitudinal-transverse plane .
• This bottom wall 24 is connected to each of the longitudinal edges 12, 14 and lateral 16, 18. More precisely, the bottom wall 24 is connected to these longitudinal edges 12, 14 and lateral 16, 18 so that an angle has measured between this bottom wall 24 and any one of the edges 12, 14, 16, 18 is between 103.5° and 109.5° - Preferably, such an angle a is between 105 0 and 108°.
• the longitudinal edges 12, 14 and lateral edges 16, 18 thus extend in intersecting planes but not perpendicular to the longitudinal-transverse plane in which the bottom wall 24 extends, thereby giving a bathtub shape to the plate 10 .
• the plate 10 also has a determined thickness, such a thickness corresponding to its dimension which is measured along the vertical direction V taken at the bottom wall 24.
• the thickness of this bottom wall 24 of the plate 10 is between 0.20 mm and 0.45 mm, preferably between 0.27 mm and 0.35 mm.
• the fluids are conveyed to fluid distribution openings of the heat exchanger i. These fluid distribution openings are here arranged in the vicinity of each of the four corners of the plate 10, that is to say on the bottom wall 24 at the junction between their longitudinal edges 12, 14 and lateral edges 16, 18.
• first fluid distribution opening 26 a second fluid distribution opening 28, a third fluid distribution opening 30 and a fourth fluid distribution opening 32, i.e. two openings fluid distribution openings 26, 28 at the first longitudinal end 20 and two fluid distribution openings at the second longitudinal end 22.
• These fluid distribution openings 26, 28, 30, 32 are intended to deliver or evacuate fluid to/from each of the zones delimited by two adjacent plates 10 of the heat exchanger 1. They extend in particular in the extension of the connection pipes 4, 6 or the connection block 8.
• the two fluid distribution openings 30, 32 which are arranged at the vicinity of the second longitudinal end 22 have a collar 33, which corresponds to a deformation by stamping of the material constituting the bottom wall 24 on the contour of these fluid distribution openings 30, 32.
• the two fluid distribution openings 26 , 28 arranged at the first longitudinal end 20 26, 28 are devoid of such a collar 33.
• a circulation zone 34 dedicated to the circulation of the first fluid or the second fluid.
• This circulation zone 34 is delimited, when it is defined by two adjacent plates 10, on the one hand between the longitudinal edges 12, 14 and lateral 16, 18 of one of the two adjacent plates 10 and vertically on the other hand between the bottom walls 24 of each of these two adjacent plates 10.
• the circulation zone 34 is between a plate 10 and the cheek 2, it is delimited vertically by the bottom wall 24 of the plate 10 and by the cheek 2.
• This circulation zone 34 is in fluid communication with the openings of fluid distribution 26, 28, 30, 32. Fluid circulation zones 34 are therefore spaces between two adjacent plates 10 in the stacking direction E where fluid circulates.
• the plate 10 has fluid flow disruptors 40, which are particularly visible in Figures 3 to 6, Figures 4 to 6 being sectional views A-A of the heat exchanger 1.
• the fluid flow disruptors 40 are protuberances or asperities which are deformations of the bottom wall 24 of the plate 10. Such deformations can in particular be obtained by stamping the bottom wall 24, towards the inside of the volume of the plate 10 delimited by its edges longitudinal 12, 14 and lateral 16, 18. Unlike the cheek 2 whose surface is flat, the plates 10 therefore have an irregular surface which avoids the laminar flow of the fluid concerned within the circulation zone 34.
• a fluid flow disruptor 40 is here a truncated dome 41 which projects from a plate 10. In the presence of several truncated domes 41, these are distributed in a regular pattern and at a predefined pitch.
• these truncated domes 41 extend between a base 42, closest to the longitudinal-transverse plane in which the bottom wall 24 mainly extends, and a vertex 44 at a distance of this one.
• the top 44 of each of the truncated domes 41 is a flat part, preferably extending parallel to the bottom wall 24.
• the fluid flow disruptors 40 have a vertical dimension D, i.e. their dimension measured between their base 42 and their top 44, between 0.75 mm and 1.15 mm. Such a dimension vertical corresponds to a height of the truncated domes 41.
• a maximum diameter of the truncated domes 41 measured at their base 42 is 4.5 mm, while a minimum diameter of these truncated domes 41 measured at their top 44 is 2mm.
• the truncated dome 41 has a circular profile, seen from above, just like the top 44 and/or the base 42.
• Figures 4 to 6 it is also illustrated that the fluid flow disruptors 40 of two adjacent plates 10 in the stacking direction E are arranged in a staggered manner. In other words, there is an offset between the respective fluid flow disruptors 40 of two adjacent plates 10, such an offset being observed in a sectional view along a longitudinal-vertical plane.
• Figures 4 to 6, which correspond to three distinct embodiments of the heat exchanger 1 according to the invention, will now be described successively.
• the embodiment shown in Figure 4 corresponds to a first embodiment of the heat exchanger 1 according to the invention.
• the plates 10 stacked under the cover 2 in the stacking direction E, which correspond to the heating body, are here first plates 10A interspersed with second plates 10B.
• the angle measured between any one, advantageously all, of the longitudinal edges 12, 14 or lateral edges 16, 18 on the one hand and the bottom wall 24 on the other hand is here a first angle al which is between 105 0 and 108 °.
• ai is chosen to guarantee, during the assembly of the heat exchanger 1 and more particularly during the deformation of the plates 10 composing it, an ability of the longitudinal edges 12, 14 and lateral 16, 18 to deform. such that the vertices 44 of each of the fluid flow disruptors 40 of a given plate 10 come into contact with the bottom wall 24 of the plate 10 which is adjacent to it.
• the first angle ai contributes by elsewhere to ensure a seal between the longitudinal edges 12, 14 and lateral 16, 18 of two adjacent plates 10, even if these present fluid flow disruptors 40 of variable dimensions, that is to say at both according to the first dimension Di and the second dimension D2.
• the heat exchanger 1 according to the second embodiment illustrated in Figure 5 comprises a heating body consisting solely of first plates 10A. It is thus understood that according to this second embodiment, the heat exchanger 1 presents a stack of plates 10 all presenting fluid flow disruptors 40 along the first dimension Di. In other words, the heat exchanger 1 here exclusively comprises fluid flow disruptors 40 whose vertical dimension D is between 0.75 and 0.85 mm.
• the angle a is a second angle a2, which is between 106.5 0 and 109.5 ° -
• This second angle a2 is adapted to the assembly of plates 10 all having fluid disruptors 40 according to the first dimension Di. It is understood here that this angle a2 allows the first plates 10A to be deformed to guarantee both contact between the fluid flow disruptors 10 of a first plate 10A and the bottom wall 24 of the first plate 10A which is adjacent to it, and also the sealing of the heat exchanger 1 comprising only such first plates 10A.
• the heating body of the heat exchanger 1 comprises only second plates 10B; all the fluid flow disruptors 40 of this heat exchanger 1 therefore have the second vertical dimension D2, that is to say between 1.05 and 1.15 mm.
• the angle a between the bottom plate 24 and either one of the longitudinal edges 12, 14, or one of the lateral edges 16, 18 is a third angle 0C3 between 103.5° and 106.5 ° -
• the third angle 013 allows adequate deformation of the second plates 10B so that their fluid flow disruptors 40 along the second dimension D2 come into contact with the bottom walls 24 of the second adjacent plates 10B during the assembly of the heat exchanger 1 according to the third embodiment.
• Such an angle 013 also contributes to the sealing of the second plates 10B after they have been stacked and brazed, particularly at their longitudinal edges 12, 14 and lateral edges 16, 18.
• the present invention thus proposes a heat exchanger plate and an associated heat exchanger comprising several of these plates, their fluid flow disturbance devices being configured to optimize the disturbance of the circulation of fluids within the exchanger. of heat and offer it improved mechanical resistance, the plate being able to deform to absorb dimensional differences when the heating body is exclusively made up of plates according to the first vertical dimension, of an alternation of plates according to the first vertical dimension and according to the second vertical dimension or plates according to the second vertical dimension.

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• 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)

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• 2022
  • 2022-05-12 FR FR2204534A patent/FR3135517B1/fr active Active
• 2023
  • 2023-05-11 EP EP23727468.3A patent/EP4522931A1/de active Pending
  • 2023-05-11 US US18/865,034 patent/US20250305771A1/en active Pending
  • 2023-05-11 WO PCT/EP2023/062620 patent/WO2023217970A1/fr not_active Ceased
  • 2023-05-11 CN CN202380038108.7A patent/CN119137436A/zh active Pending

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