EP2253917A1 - Tube plate for a heat exchanger - Google Patents

Tube plate for a heat exchanger Download PDF

Info

Publication number
EP2253917A1
EP2253917A1 EP10162258A EP10162258A EP2253917A1 EP 2253917 A1 EP2253917 A1 EP 2253917A1 EP 10162258 A EP10162258 A EP 10162258A EP 10162258 A EP10162258 A EP 10162258A EP 2253917 A1 EP2253917 A1 EP 2253917A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact zone
plate
heat exchanger
plane
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.)
Withdrawn
Application number
EP10162258A
Other languages
German (de)
French (fr)
Inventor
Sylvain Moreau
Etienne Chardin
Christian Casenave
Yannig Travert
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 EP2253917A1 publication Critical patent/EP2253917A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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 invention is in the field of heating, ventilation and / or air conditioning of a motor vehicle. It relates to a heat exchanger intended to be housed inside such a facility. It also relates to a tube, in particular a flat tube, integrated in such a heat exchanger. Finally, it relates to a plate constituting such a tube.
  • a motor vehicle is commonly equipped with a heating, ventilation and / or air conditioning system to modify the aerothermal parameters of a flow of air diffused inside a passenger compartment of the vehicle.
  • the heating, ventilation and / or air-conditioning system consists mainly of a heating, ventilation and / or air-conditioning unit made of plastic and installed under the dashboard of the vehicle.
  • the heating, ventilation and / or air conditioning unit is intended to channel the circulation of the air flow between at least one air intake opening and at least one air distribution opening out of the heating unit, ventilation and / or air conditioning to at least one area of the passenger compartment.
  • the heating, ventilation and / or air conditioning housing houses at least one heat exchanger .
  • the aerothermal treatment of the air flow, in particular the modification of its temperature, is obtained from a crossing of the heat exchanger by the air flow.
  • the heat exchanger is, for example, a radiator installed on a cooling circuit of the engine of the vehicle inside which circulates a coolant, or an evaporator installed on an air conditioning loop inside which circulates a refrigerant.
  • the evaporator is suitable for cool and dehumidify the airflow while the radiator is able to heat up the airflow.
  • the heat exchanger comprises a bundle of a plurality of flat tubes for circulating the fluid in the heat exchanger.
  • the flat tubes are successively stacked and spaced apart by an interval in which is housed a corrugated spacer.
  • the flat tube is formed by the face-to-face assembly of two stamped plates made from a metal strip thus defining a flow conduit in which the fluid passes.
  • the interlayer placed between two adjacent flat tubes promotes a heat exchange between the air flow through the heat exchanger and the fluid, indifferently coolant or refrigerant circulating inside the heat exchanger.
  • Two adjacent flat tubes are assembled together to provide fluid flow between the two flat tubes and, therefore, throughout the heat exchanger.
  • the assembly of two adjacent flat tubes is achieved by means of brazing joints provided between two respective contact areas of the two adjacent flat tubes.
  • Each brazing joint consists of a layer of filler metal having a thickness of about 5% to 12%, in particular between 7.5% to 10%, of a thickness of the metal strip in which are made the stamped plates forming the flat tubes.
  • a solder joint has a small thickness, especially less than 0.03 mm and a short length, especially less than 1.5 mm.
  • the flow of air passing through the heat exchanger is charged with particles, in particular water and / or impurities, for example metal particles.
  • the particles tend to be deposited on the flat tubes and may come into contact with the solder joints. Such a deposit is likely to generate corrosion resulting in weakening and / or damage to the solder joints.
  • the small thickness of the solder joints makes them very sensitive to corrosion.
  • the object of the present invention is to provide a corrosion-resistant heat exchanger caused by particles transported by a flow of air passing through the heat exchanger. Another object is to provide a flat tube arranged to form such a heat exchanger arranged to resist such corrosion. A final object of the present invention is to provide a plate used in the production of such flat tubes.
  • the plate of the present invention is a plate of a flat tube for a heat exchanger.
  • the plate comprises at least one connecting edge comprising at least one contact zone extending along a general extension plane or contact plane.
  • the contact area is intended to be joined by brazing with another contact area of another adjacent plate.
  • the contact zone extends from the general plane of extension of the plate or contact plane in at least a first direction perpendicular to the general plane of extension or plane of contact, in particular a length greater than or equal to at 1.5 mm.
  • the contact zone extends in at least a second direction parallel to the general plane of extension or contact plane.
  • the contact zone advantageously comprises at least one point of inflection.
  • the contact zone preferably comprises a first elementary contact zone and a second elementary contact zone which are situated on either side of the point of inflection.
  • the first elementary contact zone and the second elementary contact zone are, for example, parallel to one another.
  • a second variant consists in that the first elementary contact zone and the second elementary contact zone are for example still perpendicular to each other.
  • the first elementary contact zone and the second elementary contact zone form an angle between 0 ° and 180 ° between them, preferably between 0 ° and 90 °.
  • the contact zone is in particular shaped as a baffle.
  • a flat tube of the present invention consists of at least two plates as previously described.
  • the present invention is specific to a heat exchanger consisting of at least two flat tubes as described above.
  • the flat tubes are assembled by their contact zones by a brazing joint of length greater than or equal to 1.5 mm.
  • the figure 1 is a schematic view of a heat exchanger 1 according to the present invention.
  • the heat exchanger 1 is indifferently a radiator adapted to be installed on a cooling circuit of a motor of a vehicle, or an evaporator adapted to be integrated in an air conditioning loop.
  • the radiator allows the circulation of a coolant, for example a mixture of water and glycol.
  • the radiator is intended to heat an air flow 2.
  • the evaporator conveys a refrigerant, such as a halogenated hydrocarbon, especially the fluid known under the name R134A, or a hydrofluoro-olefin refrigerant, especially the fluid known under the name 1234yf.
  • the evaporator is designed to cool the airflow 2.
  • the heat exchanger 1 is intended to be housed inside a heating, ventilation and / or air conditioning system to modify the temperature of the air flow 2 whose circulation is channeled through the heating, ventilation and / or air conditioning system. This change in temperature is obtained from a crossing of the heat exchanger 1 by the air flow 2.
  • the heat exchanger 1 may also be any other heat exchange device, in particular a condenser, a gas cooler, etc.
  • the heat exchanger 1 extends over a width L along a first direction xx, a height H along a second direction yy and a depth P along a third direction zz.
  • the first, second and third directions xx, yy and zz form a direct dihedron.
  • the heat exchanger heat 1 extends globally according to a first general extension plane P1 containing the first and second directions xx and yy.
  • the first general extension plane P1 is parallel to the plane of the figure 1 .
  • the air flow 2 circulates perpendicularly to the first general plane of extension P1 through the heat exchanger 1. The air flow 2 therefore flows along the third direction zz.
  • the heat exchanger 1 consists of a stack of flat tubes 3 arranged next to each other in the first direction x-x.
  • Each flat tube 3 is formed by an assembly of two metal plates 10.
  • Each flat tube 3 is provided with at least one communication port 4 for the passage of a first fluid between two adjacent flat tubes 3.
  • Each communication orifice 4 is made in a connecting edge 5 of the flat tube 3.
  • the communication orifice 4 is circular in shape.
  • the connecting edge 5 and the communication port 4 of the flat tube 3 extend along a second general extension plane P2 or P2 contact plane.
  • the connecting edge 5 of the flat tube 3 constitutes a connection zone between two adjacent flat tubes 3. Two adjacent flat tubes 3 are joined to each other by brazing at the connecting edge 5 of each flat tube 3.
  • the second plane of general extension P2 contact plane P2 is arranged perpendicularly to the first general plane of extension P1.
  • the flat tube 3 has a plane of symmetry P2 '.
  • the plane of symmetry P2 ' is parallel to the second general plane of extension P2 or contact plane P2.
  • An interlayer 6 is placed between two adjacent flat tubes 3 to define a heat exchange surface between the first fluid flowing in the heat exchanger 1 and the air flow 2.
  • FIGS. 2 and 3 are schematic views of a flat tube 3 constituting the heat exchanger 1 illustrated on the figure 1 .
  • Each flat tube 3 is formed from the assembly, preferably by brazing, of two plates 10.
  • Each plate 10 is obtained from the stamping of a metal strip so as to form bowls and bosses for the circulation. of the first fluid.
  • each plate 10 is of generally rectangular shape.
  • Each plate 10 comprises at least one boss disposed at one end of the plate 10 and a bowl occupying most of the height of the plate 10.
  • Each plate 10 also has a peripheral edge 11 located in a vertical plane parallel to the contact plane P2.
  • the peripheral edges 11 of two adjacent plates 10 are mutually joined sealingly to the first fluid, in particular by soldering, to delimit an internal volume between the two plates 10.
  • the assembly of the peripheral edges 11 of two plates 10 is in the plane of symmetry P2 '.
  • the assembly by soldering of two plates 10 of the flat tube 3 makes it possible to define a circulation channel 7 of the first fluid in the heat exchanger 1.
  • the circulation channel 7 is obtained by facing the cuvettes of each plate 10 constituting the flat tube 3.
  • the brazing assembly of two plates 10 makes it possible to define an upper chamber 8 and a lower chamber 9 obtained by putting the bosses of each plate 10 opposite each other. constituting the flat tube 3.
  • Each upper chamber 8 and each lower chamber 9 respectively comprise at least one communication port 4 allowing the communication of two upper chambers 8 adjacent to each other to define an upper collector and the communication of two adjacent lower chambers 9 between they define a lower collector.
  • the circulation channel 7, the upper chamber 8 and the lower chamber 9 form the internal volume between the two plates 10 defined during the assembly of two plates 10 of the flat tube 3 along their respective peripheral edges 11.
  • the communication orifice 4 of a plate 10 cooperates with the communication orifice 4 of an adjacent plate 10 to communicate two upper chambers 8, respectively two lower chambers 9, adjacent.
  • the two plates 10 of the same pair are assembled together so that their concavities, defined by the bowl and the respective bosses, are facing each other.
  • the upper chambers 8 and the lower chambers 9 therefore cooperate respectively between them to define the two fluid collectors.
  • the heat exchanger 1 comprises the upper collector and the lower collector respectively connected by the circulation channel 7 of each flat tube 3.
  • the heat exchanger 1 comprises two juxtaposed collectors arranged at one end of the flat tubes 3 and connected by the circulation channel 7 of each flat tube 3.
  • certain communication orifices 4 can be closed.
  • the arrangement of the flat tubes 3 makes it possible to carry out various types of circulation of the first fluid passing through the heat exchanger 1, in particular so-called "U” or "U” circulations.
  • the bosses of two adjacent plates 10 belonging to two different pairs of plates 10 are such as to create an interval in which the spacer 6 is arranged in the form of a corrugated metal sheet and to form a circulation passage. for a second fluid, atmospheric air according to the embodiment described.
  • the vertices of the corrugations of the spacer 6 alternately come into contact with the two plates 10 limiting the passage housing the spacer 6.
  • each of the plates 10 further comprises a median partition capable of being assembled with a median partition homologous to the other plate 10 of the same pair.
  • each of the internal volumes defined between two plates 10 of the same pair delimits a U-shaped path for the first fluid.
  • the heat exchanger 1 further comprises an inlet pipe and an outlet pipe, not shown, respectively for the admission of the first fluid into the heat exchanger 1 and for the ejection of the first fluid out of the Heat exchanger 1.
  • the first fluid can flow in the different chambers respectively formed by the pairs of plates 10.
  • each flat tube 3 is formed from the assembly, in particular by brazing, of two plates 10.
  • Each plate 10 is obtained from the stamping of a metal strip.
  • Each plate 10 has a peripheral edge 11 which is joined to another peripheral edge 11 of another plate 10, in particular by brazing.
  • the air flow 2 passing through the heat exchanger 1 is loaded with particles, especially water and / or dust, tending to interfere between two flat tubes 3 and to accumulate on the connecting edge 5 between two flat tubes 3.
  • the present invention proposes specific arrangements of the connecting edge 5.
  • each connecting edge 5 of the plate 10 has a contact zone 13.
  • solder joint 12 constitutes a mechanical connection between two respective contact areas 13, commonly called collars, which comprise two plates 10 of two adjacent flat tubes 3.
  • the contact zone 13 of each plate 10 extends in the first direction xx beyond the second general plane of extension P2 or contact plane P2 of the plate 10.
  • the respective contact areas 13 of the plates 10 are superimposed on an overlapping zone 14, so that the two second planes of general extension P2 or P2 contact planes of the two plates 10 be confused.
  • the overlap area 14 defines the solder joint 12 between two adjacent plates.
  • the brazing joint 12 is protected by the contact zone 13 of one of the plates 10 of the air flow 2, the plates 10 advantageously constituting a barrier against a passage through the air flow 2 .
  • the overlap zone 14 extends over a length Lo defining the length of the solder joint 12.
  • the length Lo of the brazing joint 12 is advantageously greater than 1.5 mm, in particular greater than 2 mm.
  • Such a length Lo contributes to ensuring a tightness of the internal volume vis-à-vis the second flow.
  • this length is optimized to ensure good resistance to corrosion.
  • the contact zones 13 are advantageously obtained during the stamping operation of the plates 10 so that the arrangements proposed by the present invention do not require any particular action to conform the connection edge 5 of the flat tubes 3 and the contact areas 13 of the plates 10.
  • the contact areas 13 are substantially cylindrical in shape. More particularly, the contact zones 13 are arranged in a cylinder of axis D arranged perpendicularly to the second general plane of extension P2 or contact plane P2 of the plate 10 and the plane of symmetry P2 'of the flat tubes 3.
  • the cylinder axis D rests on the contour of the communication port 4 made in the connecting edge 5 of the flat tube 3.
  • the contact zones 13 have an axial contact of length Lo along the axis D between them.
  • the figure 5 presents a second embodiment of the present invention wherein the contact areas 13 are substantially conical in shape. More particularly, the contact zones 13 are arranged in a cone of axis D 'arranged perpendicularly to the second general plane of extension P2 or contact plane P2 of the plate 10 and to the plane of symmetry P2' of the flat tubes 3. axis cone D 'rests on the contour of the communication port 4 made in the connecting edge 5 of the flat tube 3. According to the example of the figure 5 the contact zones 13 have an axial contact of length Lo along the axis D 'between them. These arrangements facilitate an assembly by interlocking two adjacent flat tubes 3.
  • the contact zones 13 comprise at least one inflection point 17.
  • inflection point is meant a part of the contact zone 13 at which the direction of extension of the contact zone 13 is modified.
  • the contact zone 13 then comprises a first elementary contact zone 15 and a second elementary contact zone 16 disposed on either side of the point of inflection 17.
  • the presence of the inflection point 17 allows, in particular, to reduce the phenomenon of corrosion. Indeed, the point of inflection 17 contributes to limiting the development of corrosion in the contact surface 13 by constituting an obstacle to the propagation of the latter.
  • the contact zones 13 have a single point of inflection 17.
  • the contact zones 13 are bent.
  • the first elemental contact area 15 and the second elementary contact area 16 are generally arranged orthogonally with each other.
  • the first elementary contact zone 15 and the second elementary contact zone 16 form between them an angle A of between 0 ° and 180 °, preferably between 0 ° and 90 °.
  • the fourth variant illustrated on the figure 7 is such that the contact areas 13 have two points of inflection 17.
  • the contact areas 13 are arranged in a chicane.
  • the first elementary contact zone 15 and the second elementary contact zone 16 are generally arranged parallel to each other and are interconnected by a complementary contact zone 18 defined between the two points of inflection. 17.
  • the first elementary contact zone 15 and the second elementary contact zone 16 extend in planes parallel to the second general extension plane P2 or P2 contact plane of the plate 10 and to the plane of symmetry P2 'of the flat tubes 3.
  • first elementary contact zone 15 and the second elementary contact zone 16 extend in planes perpendicular to the second general extension plane P2 or contact plane P2 of the plate 10 and to the plane of contact. symmetry P2 'of the flat tubes 3.
  • first elementary contact zone 15 and the second elementary contact zone 16 extend in planes forming any angle with the second general extension plane P2 or P2 contact plane of the plate 10 and the plane of symmetry P2 'of the flat tubes 3.
  • the contact areas 13 of the fourth embodiment are shaped such that the overlap area 14 is S-shaped.
  • the contact areas 13 have three or four inflection points 17, so that the contact areas 13 form a hump or a peak.
  • the contact zone 13 comprises three points of inflection 17
  • the point of inflection 17 between the two other points of inflection 17 is a cusp.
  • the contact zones 13 are formed generally parallel to the general plane of extension P2 or contact plane P2 of the plate 10 and to the plane of symmetry P2 'of the flat tubes 3.
  • the first elementary contact zone 15 and the second elementary contact zone 16 furthest apart from each other are parallel to each other.
  • the contact zone 13 extends at least partially in the first direction xx from the second general extension plane P2 or P2 contact plane of the plate 10.
  • the contact zone 13 extends in all along the first direction xx in the examples of the Figures 4 and 5 .
  • the contact zone 13 extends partially in the first direction xx, the examples of the Figures 6 to 8 .
  • the second elementary contact zone 16 of the contact zone 13 extends partially in the first direction xx.
  • the complementary contact area 18 of the contact zone 13 extends partially in the first direction xx and in figure 8 , the hump and / or the peak defined by the inflection points extend partially in the first direction xx.
  • the contact zone 13 may extend from the second general extension plane P2 or contact plane P2 of the plate 10 towards the interior of the upper chamber 8 and / or the lower chamber 9 and / or to the outside of the upper chamber 8 and / or the lower chamber 9.
  • the present invention has the advantage of allowing the use of common metal strips made of aluminum alloy and commonly referred to as long-life alloys.
  • such alloys are alloys of the 3000 series covered by the soldering materials of the 4000 series.
  • the present invention allows a reduction of the thickness of the plates 10 to a thickness of less than 0.3 mm. more particularly equal to 0.25 mm, while maintaining an optimized resistance to corrosion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The plate (10) has a connection edge extending along a contact plane (P2) and comprising a contact zone (13), where the contact zone extends from the contact plane along a direction perpendicular to the contact plane over a length higher or equal to 1.5 mm. The contact zone is formed in a baffle, and comprises two elementary contact zones respectively located on sides of an inflexion point. The elementary contact zones are parallel to each other or perpendicular to each other and form an angle ranging between 0 and 90 degree with respect to each other. An independent claim is also included for a heat exchanger comprising a flat tube.

Description

L'invention est du domaine des installations de chauffage, de ventilation et/ou de climatisation d'un véhicule automobile. Elle a pour objet un échangeur de chaleur destiné à être logé à l'intérieur d'une telle installation. Elle a aussi pour objet un tube, en particulier un tube plat, intégré à un tel échangeur de chaleur. Elle a enfin pour objet une plaque constituant un tel tube.The invention is in the field of heating, ventilation and / or air conditioning of a motor vehicle. It relates to a heat exchanger intended to be housed inside such a facility. It also relates to a tube, in particular a flat tube, integrated in such a heat exchanger. Finally, it relates to a plate constituting such a tube.

Un véhicule automobile est couramment équipé d'une installation de chauffage, de ventilation et/ou de climatisation pour modifier les paramètres aérothermiques d'un flux d'air diffusé à l'intérieur d'un habitacle du véhicule. L'installation de chauffage, de ventilation et/ou de climatisation est principalement constituée d'un boîtier de chauffage, de ventilation et/ou de climatisation réalisé en matière plastique et installé sous la planche de bord du véhicule. Le boîtier de chauffage, de ventilation et/ou de climatisation est destiné à canaliser la circulation du flux d'air entre au moins une bouche d'admission d'air et au moins une bouche de distribution d'air hors du boîtier de chauffage, de ventilation et/ou de climatisation vers au moins une zone de l'habitacle.A motor vehicle is commonly equipped with a heating, ventilation and / or air conditioning system to modify the aerothermal parameters of a flow of air diffused inside a passenger compartment of the vehicle. The heating, ventilation and / or air-conditioning system consists mainly of a heating, ventilation and / or air-conditioning unit made of plastic and installed under the dashboard of the vehicle. The heating, ventilation and / or air conditioning unit is intended to channel the circulation of the air flow between at least one air intake opening and at least one air distribution opening out of the heating unit, ventilation and / or air conditioning to at least one area of the passenger compartment.

Pour modifier la température du flux d'air préalablement à sa distribution hors du boîtier de chauffage, de ventilation et/ou de climatisation vers l'habitacle, le boîtier de chauffage, de ventilation et/ou de climatisation loge au moins un échangeur de chaleur. Le traitement aérothermique du flux d'air, notamment la modification de sa température, est obtenu à partir d'une traversée de l'échangeur de chaleur par le flux d'air.To modify the temperature of the air flow prior to distribution out of the heating, ventilation and / or air conditioning to the passenger compartment, the heating, ventilation and / or air conditioning housing houses at least one heat exchanger . The aerothermal treatment of the air flow, in particular the modification of its temperature, is obtained from a crossing of the heat exchanger by the air flow.

L'échangeur de chaleur est, par exemple, un radiateur installé sur un circuit de refroidissement du moteur du véhicule à l'intérieur duquel circule un fluide caloporteur, ou encore un évaporateur installé sur une boucle de climatisation à l'intérieur de laquelle circule un fluide réfrigérant. L'évaporateur est apte à refroidir et à déshumidifier le flux d'air tandis que le radiateur à apte à réchauffer le flux d'air.The heat exchanger is, for example, a radiator installed on a cooling circuit of the engine of the vehicle inside which circulates a coolant, or an evaporator installed on an air conditioning loop inside which circulates a refrigerant. The evaporator is suitable for cool and dehumidify the airflow while the radiator is able to heat up the airflow.

L'échangeur de chaleur comprend un faisceau d'une pluralité de tubes plats permettant la circulation du fluide dans l'échangeur de chaleur. Les tubes plats sont successivement empilés et espacés d'un intervalle dans lequel est logé un intercalaires ondulés. Selon divers modes de réalisation, le tube plat est formé par l'assemblage en face-à-face de deux plaques embouties réalisées à partir d'un feuillard métallique définissant ainsi un conduit de circulation dans lequel passe le fluide. L'intercalaire placé entre deux tubes plats adjacents favorise un échange de chaleur entre le flux d'air traversant l'échangeur de chaleur et le fluide, indifféremment caloporteur ou réfrigérant, circulant à l'intérieur de l'échangeur de chaleur.The heat exchanger comprises a bundle of a plurality of flat tubes for circulating the fluid in the heat exchanger. The flat tubes are successively stacked and spaced apart by an interval in which is housed a corrugated spacer. According to various embodiments, the flat tube is formed by the face-to-face assembly of two stamped plates made from a metal strip thus defining a flow conduit in which the fluid passes. The interlayer placed between two adjacent flat tubes promotes a heat exchange between the air flow through the heat exchanger and the fluid, indifferently coolant or refrigerant circulating inside the heat exchanger.

Deux tubes plats adjacents sont assemblés l'un avec l'autre afin d'assurer la circulation du fluide entre les deux tubes plats et, par conséquence, dans la totalité de l'échangeur de chaleur. L'assemblage de deux tubes plats adjacents est réalisé par l'intermédiaire de joints de brasage ménagés entre deux zones de contact respectives des deux tubes plats adjacents.Two adjacent flat tubes are assembled together to provide fluid flow between the two flat tubes and, therefore, throughout the heat exchanger. The assembly of two adjacent flat tubes is achieved by means of brazing joints provided between two respective contact areas of the two adjacent flat tubes.

Chaque joint de brasage est constitué d'une couche de métal d'apport présentant une épaisseur de l'ordre de 5% à 12%, en particulier entre 7,5% à 10%, d'une épaisseur du feuillard métallique dans lequel sont réalisées les plaques embouties formant les tubes plats. Pour réduire la masse et/ou les coûts de fabrication de tels échangeurs de chaleur, il est recherché de diminuer le plus possible l'épaisseur des feuillards métalliques utilisés pour la réalisation des échangeurs de chaleur. Il en résulte donc une réduction de l'épaisseur du joint de brasage. Ainsi, il est courant qu'un joint de brasage présente une faible épaisseur, notamment inférieure à 0,03 mm et une faible longueur, notamment inférieure à 1,5 mm.Each brazing joint consists of a layer of filler metal having a thickness of about 5% to 12%, in particular between 7.5% to 10%, of a thickness of the metal strip in which are made the stamped plates forming the flat tubes. To reduce the mass and / or manufacturing costs of such heat exchangers, it is desired to reduce as much as possible the thickness of the metal strips used for the production of heat exchangers. This results in a reduction in the thickness of the solder joint. Thus, it is common that a solder joint has a small thickness, especially less than 0.03 mm and a short length, especially less than 1.5 mm.

Or, le flux d'air traversant l'échangeur de chaleur est chargé de particules, notamment de l'eau et/ou des impuretés, par exemple des particules métalliques. Lors de la traversée de l'échangeur de chaleur par le flux d'air, les particules tendent à se déposer sur les tubes plats et sont susceptibles de venir au contact des joints de brasage. Un tel dépôt est susceptible de générer une corrosion entraînant un affaiblissement et/ou un endommagement des joints de brasage. Par ailleurs, la faible épaisseur des joints de brasage les rend très sensibles à la corrosion.However, the flow of air passing through the heat exchanger is charged with particles, in particular water and / or impurities, for example metal particles. During the passage of the heat exchanger by the air flow, the particles tend to be deposited on the flat tubes and may come into contact with the solder joints. Such a deposit is likely to generate corrosion resulting in weakening and / or damage to the solder joints. In addition, the small thickness of the solder joints makes them very sensitive to corrosion.

De telles dispositions s'avèrent insatisfaisantes au regard d'une préservation des joints de brasage par rapport à la corrosion.Such provisions are unsatisfactory with regard to the preservation of solder joints with respect to corrosion.

Le but de la présente invention est de proposer un échangeur de chaleur résistant à une corrosion provoquée par des particules transportées par un flux d'air traversant l'échangeur de chaleur. Un autre but est de proposer un tube plat agencé pour former un tel échangeur de chaleur agencé pour résister à une telle corrosion. Un dernier but de la présente invention est de proposer une plaque entrant dans la réalisation de tels tubes plats.The object of the present invention is to provide a corrosion-resistant heat exchanger caused by particles transported by a flow of air passing through the heat exchanger. Another object is to provide a flat tube arranged to form such a heat exchanger arranged to resist such corrosion. A final object of the present invention is to provide a plate used in the production of such flat tubes.

La plaque de la présente invention est une plaque d'un tube plat pour un échangeur de chaleur. La plaque comprend au moins un bord de liaison comportant au moins une zone de contact s'étendant selon un plan d'extension générale ou plan de contact. La zone de contact est destinée à être jointe par brasage avec une autre zone de contact d'une autre plaque adjacente.The plate of the present invention is a plate of a flat tube for a heat exchanger. The plate comprises at least one connecting edge comprising at least one contact zone extending along a general extension plane or contact plane. The contact area is intended to be joined by brazing with another contact area of another adjacent plate.

Selon la présente invention, la zone de contact s'étend depuis le plan général d'extension de la plaque ou plan de contact selon au moins une première direction perpendiculaire au plan général d'extension ou plan de contact, notamment une longueur supérieure ou égale à 1.5 mm. Alternativement ou en complément, la zone de contact s'étend selon au moins une deuxième direction parallèle au plan général d'extension ou plan de contact.According to the present invention, the contact zone extends from the general plane of extension of the plate or contact plane in at least a first direction perpendicular to the general plane of extension or plane of contact, in particular a length greater than or equal to at 1.5 mm. Alternatively or in addition, the contact zone extends in at least a second direction parallel to the general plane of extension or contact plane.

La zone de contact comporte avantageusement au moins un point d'inflexion. Par cet agencement, la zone de contact comporte préférentiellement une première zone de contact élémentaire et une deuxième zone de contact élémentaire qui sont situées de part et d'autre du point d'inflexion.The contact zone advantageously comprises at least one point of inflection. By this arrangement, the contact zone preferably comprises a first elementary contact zone and a second elementary contact zone which are situated on either side of the point of inflection.

Selon une première variante, la première zone de contact élémentaire et la deuxième zone de contact élémentaire sont par exemple parallèles entre elles. Une deuxième variante consiste en ce que la première zone de contact élémentaire et la deuxième zone de contact élémentaire sont par exemple encore perpendiculaires entre elles. Alternativement, la première zone de contact élémentaire et la deuxième zone de contact élémentaire forment entre elles un angle compris entre 0° et 180°, préférentiellement enter 0° et 90°. La zone de contact est notamment conformée en une chicane.According to a first variant, the first elementary contact zone and the second elementary contact zone are, for example, parallel to one another. A second variant consists in that the first elementary contact zone and the second elementary contact zone are for example still perpendicular to each other. Alternatively, the first elementary contact zone and the second elementary contact zone form an angle between 0 ° and 180 ° between them, preferably between 0 ° and 90 °. The contact zone is in particular shaped as a baffle.

Un tube plat de la présente invention est constitué d'au moins deux plaques telles que décrites précédemment.A flat tube of the present invention consists of at least two plates as previously described.

Enfin, la présente invention est propre à un échangeur de chaleur constitué d'au moins deux tubes plats tels que décrit précédemment. Préférentiellement, les tubes plats sont assemblés par leurs zones de contact par un joint de brasage de longueur supérieure ou égale à 1.5 mm.Finally, the present invention is specific to a heat exchanger consisting of at least two flat tubes as described above. Preferably, the flat tubes are assembled by their contact zones by a brazing joint of length greater than or equal to 1.5 mm.

D'autres caractéristiques et avantages de l'invention apparaîtront à l'examen de la description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, qui pourront servir à compléter la compréhension de la présente invention et l'exposé de sa réalisation mais aussi, le cas échéant, contribuer à sa définition, sur lesquels:

  • La figure 1 est une vue schématique d'un échangeur de chaleur selon la présente invention,
  • Les figures 2 et 3 sont des vues schématiques d'un tube plat de l'échangeur de chaleur selon la figure 1, et
  • Les figures 4 à 8 sont des illustrations schématiques de différents modes de réalisation respectives de zones de contact entre deux tubes plats adjacents selon la présente invention.
Other features and advantages of the invention will appear on examining the following description with reference to the accompanying drawings, given by way of non-limiting examples, which may serve to complete the understanding of the present invention and the statement of its realization but also, if necessary, contribute to its definition, on which:
  • The figure 1 is a schematic view of a heat exchanger according to the present invention,
  • The Figures 2 and 3 are schematic views of a flat tube of the heat exchanger according to the figure 1 , and
  • The Figures 4 to 8 are schematic illustrations of different respective embodiments of contact areas between two adjacent flat tubes according to the present invention.

La figure 1 est une vue schématique d'un échangeur de chaleur 1 selon la présente invention. L'échangeur de chaleur 1 est indifféremment un radiateur apte à être installé sur un circuit de refroidissement d'un moteur d'un véhicule, ou un évaporateur apte à être intégré à une boucle de climatisation. Dans le premier cas, le radiateur permet la circulation d'un fluide caloporteur, par exemple un mélange d'eau et de glycol. Le radiateur est destiné à réchauffer un flux d'air 2. Dans le deuxième cas, l'évaporateur véhicule un fluide réfrigérant, tel qu'un hydrocarbure halogéné, notamment le fluide connu sous la dénomination R134A, ou un fluide frigorigène hydrofluoro-oléfine, notamment le fluide connu sous la dénomination 1234yf. L'évaporateur est prévu pour refroidir le flux d'air 2.The figure 1 is a schematic view of a heat exchanger 1 according to the present invention. The heat exchanger 1 is indifferently a radiator adapted to be installed on a cooling circuit of a motor of a vehicle, or an evaporator adapted to be integrated in an air conditioning loop. In the first case, the radiator allows the circulation of a coolant, for example a mixture of water and glycol. The radiator is intended to heat an air flow 2. In the second case, the evaporator conveys a refrigerant, such as a halogenated hydrocarbon, especially the fluid known under the name R134A, or a hydrofluoro-olefin refrigerant, especially the fluid known under the name 1234yf. The evaporator is designed to cool the airflow 2.

Dans les deux cas, l'échangeur de chaleur 1 est destiné à être logé à l'intérieur d'une installation de chauffage, de ventilation et/ou de climatisation pour modifier la température du flux d'air 2 dont la circulation est canalisée par l'installation de chauffage, de ventilation et/ou de climatisation. Cette modification de température est obtenue à partir d'une traversée de l'échangeur de chaleur 1 par le flux d'air 2.In both cases, the heat exchanger 1 is intended to be housed inside a heating, ventilation and / or air conditioning system to modify the temperature of the air flow 2 whose circulation is channeled through the heating, ventilation and / or air conditioning system. This change in temperature is obtained from a crossing of the heat exchanger 1 by the air flow 2.

L'échangeur de chaleur 1 peut également être tout autre dispositif d'échange de chaleur, notamment un condenseur, un refroidisseur de gaz, ...The heat exchanger 1 may also be any other heat exchange device, in particular a condenser, a gas cooler, etc.

L'échangeur de chaleur 1 s'étend sur une largeur L selon une première direction x-x, une hauteur H selon une deuxième direction y-y et une profondeur P selon une troisième direction z-z. Les première, deuxième et troisième directions x-x, y-y et z-z forment un dièdre direct. Selon l'exemple de réalisation, l'échangeur de chaleur 1 s'étend globalement selon un premier plan d'extension générale P1 contenant les première et deuxième directions x-x et y-y. Sur la figure 1, le premier plan d'extension générale P1 est parallèle au plan de la figure 1. Le flux d'air 2 circule perpendiculairement au premier plan d'extension générale P1 en traversant l'échangeur de chaleur 1. Le flux d'air 2 circule donc selon la troisième direction z-z.The heat exchanger 1 extends over a width L along a first direction xx, a height H along a second direction yy and a depth P along a third direction zz. The first, second and third directions xx, yy and zz form a direct dihedron. According to the exemplary embodiment, the heat exchanger heat 1 extends globally according to a first general extension plane P1 containing the first and second directions xx and yy. On the figure 1 , the first general extension plane P1 is parallel to the plane of the figure 1 . The air flow 2 circulates perpendicularly to the first general plane of extension P1 through the heat exchanger 1. The air flow 2 therefore flows along the third direction zz.

L'échangeur de chaleur 1 est constitué d'un empilement de tubes plats 3 disposés les uns à coté des autres selon la première direction x-x. Chaque tube plat 3 est formé par un assemblage de deux plaques métalliques 10.The heat exchanger 1 consists of a stack of flat tubes 3 arranged next to each other in the first direction x-x. Each flat tube 3 is formed by an assembly of two metal plates 10.

Chaque tube plat 3 est pourvu d'au moins un orifice de communication 4 pour le passage d'un premier fluide entre deux tubes plats 3 adjacents. Chaque orifice de communication 4 est réalisé dans un bord de liaison 5 du tube plat 3. Préférentiellement, l'orifice de communication 4 est de forme circulaire. Selon la présente invention, le bord de liaison 5 et l'orifice de communication 4 du tube plat 3 s'étendent selon un deuxième plan d'extension générale P2 ou plan de contact P2. Le bord de liaison 5 du tube plat 3 constitue une zone de liaison entre deux tubes plats adjacents 3. Deux tubes plats adjacents 3 sont assemblés l'un à l'autre par brasage au niveau du bord de liaison 5 de chaque tube plat 3.Each flat tube 3 is provided with at least one communication port 4 for the passage of a first fluid between two adjacent flat tubes 3. Each communication orifice 4 is made in a connecting edge 5 of the flat tube 3. Preferably, the communication orifice 4 is circular in shape. According to the present invention, the connecting edge 5 and the communication port 4 of the flat tube 3 extend along a second general extension plane P2 or P2 contact plane. The connecting edge 5 of the flat tube 3 constitutes a connection zone between two adjacent flat tubes 3. Two adjacent flat tubes 3 are joined to each other by brazing at the connecting edge 5 of each flat tube 3.

Le deuxième plan d'extension générale P2 plan de contact P2 est agencé perpendiculairement au premier plan d'extension générale P1.The second plane of general extension P2 contact plane P2 is arranged perpendicularly to the first general plane of extension P1.

Le tube plat 3 comporte un plan de symétrie P2'. Le plan de symétrie P2' est parallèle au deuxième plan d'extension générale P2 ou plan de contact P2.The flat tube 3 has a plane of symmetry P2 '. The plane of symmetry P2 'is parallel to the second general plane of extension P2 or contact plane P2.

Un intercalaire 6 est placé entre deux tubes plats 3 adjacents pour définir une surface d'échange de chaleur entre le premier fluide circulant dans l'échangeur de chaleur 1 et le flux d'air 2.An interlayer 6 is placed between two adjacent flat tubes 3 to define a heat exchange surface between the first fluid flowing in the heat exchanger 1 and the air flow 2.

Les figures 2 et 3 sont des vues schématiques d'un tube plat 3 constitutif de l'échangeur de chaleur 1 illustré sur la figure 1. Chaque tube plat 3 est formé à partir de l'assemblage, préférentiellement par brasage, de deux plaques 10. Chaque plaque 10 est obtenue à partir de l'emboutissage d'un feuillard métallique de manière à former des cuvettes et des bossages pour la circulation du premier fluide. Avantageusement, chaque plaque 10 est de forme générale rectangulaire.The Figures 2 and 3 are schematic views of a flat tube 3 constituting the heat exchanger 1 illustrated on the figure 1 . Each flat tube 3 is formed from the assembly, preferably by brazing, of two plates 10. Each plate 10 is obtained from the stamping of a metal strip so as to form bowls and bosses for the circulation. of the first fluid. Advantageously, each plate 10 is of generally rectangular shape.

Chaque plaque 10 comprend au moins un bossage disposé à une extrémité de la plaque 10 et une cuvette occupant la majeure partie de la hauteur de la plaque 10.Each plate 10 comprises at least one boss disposed at one end of the plate 10 and a bowl occupying most of the height of the plate 10.

Chaque plaque 10 comporte également un bord périphérique 11 situé dans un plan vertical parallèle au plan de contact P2. Les bords périphériques 11 de deux plaques 10 adjacentes sont mutuellement assemblés de façon étanche au premier fluide, notamment par brasage, pour délimiter un volume interne entre les deux plaques 10. L'assemblage des bords périphériques 11 de deux plaques 10 se fait dans le plan de symétrie P2'.Each plate 10 also has a peripheral edge 11 located in a vertical plane parallel to the contact plane P2. The peripheral edges 11 of two adjacent plates 10 are mutually joined sealingly to the first fluid, in particular by soldering, to delimit an internal volume between the two plates 10. The assembly of the peripheral edges 11 of two plates 10 is in the plane of symmetry P2 '.

L'assemblage par brasage de deux plaques 10 du tube plat 3 permet de définir un canal de circulation 7 du premier fluide dans l'échangeur de chaleur 1. Le canal de circulation 7 est obtenu par la mise en vis-à-vis des cuvettes de chaque plaque 10 constituant le tube plat 3. De plus, l'assemblage par brasage de deux plaques 10 permet de définir une chambre supérieure 8 et une chambre inférieure 9 obtenues par la mise en vis-à-vis des bossages de chaque plaque 10 constituant le tube plat 3. Chaque chambre supérieure 8 et chaque chambre inférieure 9 comportent respectivement au moins un orifice de communication 4 permettant la communication de deux chambres supérieures 8 adjacentes entre elles pour définir un collecteur supérieur et la communication de deux chambres inférieure 9 adjacentes entre elles pour définir un collecteur inférieur.The assembly by soldering of two plates 10 of the flat tube 3 makes it possible to define a circulation channel 7 of the first fluid in the heat exchanger 1. The circulation channel 7 is obtained by facing the cuvettes of each plate 10 constituting the flat tube 3. In addition, the brazing assembly of two plates 10 makes it possible to define an upper chamber 8 and a lower chamber 9 obtained by putting the bosses of each plate 10 opposite each other. constituting the flat tube 3. Each upper chamber 8 and each lower chamber 9 respectively comprise at least one communication port 4 allowing the communication of two upper chambers 8 adjacent to each other to define an upper collector and the communication of two adjacent lower chambers 9 between they define a lower collector.

Le canal de circulation 7, la chambre supérieure 8 et la chambre inférieure 9 forment le volume interne entre les deux plaques 10 défini lors de l'assemblage de deux plaques 10 du tube plat 3 le long de leurs bords périphériques 11 respectifs.The circulation channel 7, the upper chamber 8 and the lower chamber 9 form the internal volume between the two plates 10 defined during the assembly of two plates 10 of the flat tube 3 along their respective peripheral edges 11.

L'orifice de communication 4 d'une plaque 10 coopère avec l'orifice de communication 4 d'une plaque 10 adjacente pour faire communiquer deux chambres supérieures 8, respectivement deux chambres inférieures 9, adjacentes. Les deux plaques 10 d'une même paire sont assemblées entre elles de manière que leurs concavités, définies par la cuvette et les bossages respectifs, soient tournées l'une vers l'autre.The communication orifice 4 of a plate 10 cooperates with the communication orifice 4 of an adjacent plate 10 to communicate two upper chambers 8, respectively two lower chambers 9, adjacent. The two plates 10 of the same pair are assembled together so that their concavities, defined by the bowl and the respective bosses, are facing each other.

Les chambres supérieures 8 et les chambres inférieures 9 coopèrent donc respectivement entre elles afin de définir les deux collecteurs de fluide. L'échangeur de chaleur 1 comporte le collecteur supérieur et le collecteur inférieur respectivement reliés par le canal de circulation 7 de chaque tube plat 3.The upper chambers 8 and the lower chambers 9 therefore cooperate respectively between them to define the two fluid collectors. The heat exchanger 1 comprises the upper collector and the lower collector respectively connected by the circulation channel 7 of each flat tube 3.

Selon un mode de réalisation alternatif non représenté, en fonction de l'agencement des plaques 10 formant les tubes plats 3, l'échangeur de chaleur 1 comporte deux collecteurs juxtaposés disposés à une des extrémités des tubes plats 3 et reliés par le canal de circulation 7 de chaque tube plat 3.According to an alternative embodiment not shown, depending on the arrangement of the plates 10 forming the flat tubes 3, the heat exchanger 1 comprises two juxtaposed collectors arranged at one end of the flat tubes 3 and connected by the circulation channel 7 of each flat tube 3.

De même, afin de créer une circulation particulière du premier fluide dans l'échangeur de chaleur 1, certains orifices de communication 4 peuvent être obturés.Likewise, in order to create a particular circulation of the first fluid in the heat exchanger 1, certain communication orifices 4 can be closed.

Ainsi, l'agencement des tubes plats 3 permet de réaliser divers types de circulation du premier fluide parcourant l'échangeur de chaleur 1, notamment des circulations dites en 'l' ou en 'U'.Thus, the arrangement of the flat tubes 3 makes it possible to carry out various types of circulation of the first fluid passing through the heat exchanger 1, in particular so-called "U" or "U" circulations.

Les bossages de deux plaques 10 adjacentes appartenant à deux paires de plaques 10 différentes sont tels qu'ils permettent de créer un intervalle dans lequel est disposé l'intercalaire 6 réalisé sous la forme d'une feuille métallique ondulée et de former un passage de circulation pour un second fluide, de l'air atmosphérique selon l'exemple de réalisation décrit. Les sommets des ondulations de l'intercalaire 6 viennent alternativement en contact avec les deux plaques 10 limitant le passage logeant l'intercalaire 6.The bosses of two adjacent plates 10 belonging to two different pairs of plates 10 are such as to create an interval in which the spacer 6 is arranged in the form of a corrugated metal sheet and to form a circulation passage. for a second fluid, atmospheric air according to the embodiment described. The vertices of the corrugations of the spacer 6 alternately come into contact with the two plates 10 limiting the passage housing the spacer 6.

Selon un mode particulier de réalisation, chacune des plaques 10 comporte, en outre, une cloison médiane propre à être assemblée avec une cloison médiane homologue de l'autre plaque 10 de la même paire. Ainsi, chacune des volumes internes définis entre deux plaques 10 d'une même paire délimite un trajet en U, pour le premier fluide. L'échangeur de chaleur 1 comprend, en outre, une tubulure d'entrée et une tubulure de sortie , non représentées, respectivement pour l'admission du premier fluide dans l'échangeur de chaleur 1 et pour l'éjection du premier fluide hors l'échangeur de chaleur 1. Ainsi, le premier fluide peut circuler dans les différentes chambres formées respectivement par les paires de plaques 10.According to a particular embodiment, each of the plates 10 further comprises a median partition capable of being assembled with a median partition homologous to the other plate 10 of the same pair. Thus, each of the internal volumes defined between two plates 10 of the same pair delimits a U-shaped path for the first fluid. The heat exchanger 1 further comprises an inlet pipe and an outlet pipe, not shown, respectively for the admission of the first fluid into the heat exchanger 1 and for the ejection of the first fluid out of the Heat exchanger 1. Thus, the first fluid can flow in the different chambers respectively formed by the pairs of plates 10.

Sur la figure 3, chaque tube plat 3 est formé à partir de l'assemblage, en particulier par brasage, de deux plaques 10. Chaque plaque 10 est obtenue à partir de l'emboutissage d'un feuillard métallique. Chaque plaque 10 comporte un bord périphérique 11 qui est assemblé à un autre bord périphérique 11 d'une autre plaque 10, notamment par brasage.On the figure 3 each flat tube 3 is formed from the assembly, in particular by brazing, of two plates 10. Each plate 10 is obtained from the stamping of a metal strip. Each plate 10 has a peripheral edge 11 which is joined to another peripheral edge 11 of another plate 10, in particular by brazing.

Le flux d'air 2 traversant l'échangeur de chaleur 1 est chargé de particules, notamment d'eau et/ou de poussières, tendant à s'immiscer entre deux tubes plats 3 et à s'accumuler sur le bord de liaison 5 entre deux tubes plats 3. Pour éviter une corrosion du bord de liaison 5, la présente invention propose des agencements spécifiques du bord de liaison 5.The air flow 2 passing through the heat exchanger 1 is loaded with particles, especially water and / or dust, tending to interfere between two flat tubes 3 and to accumulate on the connecting edge 5 between two flat tubes 3. To avoid corrosion of the connecting edge 5, the present invention proposes specific arrangements of the connecting edge 5.

Ces agencements spécifiques sont détaillés sur les figures 4 à 8 qui sont des illustrations schématiques de forme de réalisation respectives de zones de contact 13 que comprend chaque plaque 10.These specific arrangements are detailed on the Figures 4 to 8 which are schematic illustrations of respective embodiments of contact areas 13 that each plate 10 comprises.

Les agencements spécifiques selon la présente invention présentent l'avantage commun de limiter un accès par le flux d'air 2 à un joint de brasage 12 réalisé entre les bords de liaison 5 respectifs de deux plaques 10 adjacentes de deux tubes plats 3 en contact. A cet effet, chaque bord de liaison 5 de la plaque 10 comporte une zone de contact 13.The specific arrangements according to the present invention have the common advantage of limiting access by the air stream 2 to a brazing joint 12 formed between the respective connecting edges 5 of two adjacent plates 10 of two flat tubes 3 in contact. For this purpose, each connecting edge 5 of the plate 10 has a contact zone 13.

Ainsi, le joint de brasage 12 constitue une liaison mécanique entre deux zones de contact 13 respectives, couramment dénommés collets, que comportent deux plaques 10 de deux tubes plats 3 adjacents.Thus, the solder joint 12 constitutes a mechanical connection between two respective contact areas 13, commonly called collars, which comprise two plates 10 of two adjacent flat tubes 3.

Selon une variante de la présente invention, la zone de contact 13 de chaque plaque 10 s'étend selon la première direction x-x au-delà du deuxième plan d'extension générale P2 ou plan de contact P2 de la plaque 10. Ainsi, lors de l'assemblage de deux plaques 10 adjacentes entre elles, les zones de contact 13 respectives des plaques 10 se superposent sur une zone de chevauchement 14, de sorte que les deux deuxièmes plans d'extension générale P2 ou plans de contact P2 des deux plaques 10 soient confondus.According to a variant of the present invention, the contact zone 13 of each plate 10 extends in the first direction xx beyond the second general plane of extension P2 or contact plane P2 of the plate 10. Thus, when the assembly of two plates 10 adjacent to each other, the respective contact areas 13 of the plates 10 are superimposed on an overlapping zone 14, so that the two second planes of general extension P2 or P2 contact planes of the two plates 10 be confused.

La zone de chevauchement 14 définit le joint de brasage 12 entre deux plaques 10 adjacentes. Ainsi, le joint de brasage 12 est protégé par la zone de contact 13 d'une des plaques 10 du flux d'air 2, les plaques 10 constituant avantageusement une barrière à l'encontre d'un passage par le flux d'air 2.The overlap area 14 defines the solder joint 12 between two adjacent plates. Thus, the brazing joint 12 is protected by the contact zone 13 of one of the plates 10 of the air flow 2, the plates 10 advantageously constituting a barrier against a passage through the air flow 2 .

La zone de chevauchement 14 s'étend sur une longueur Lo définissant la longueur du joint de brasage 12. De façon préférentielle, la longueur Lo du joint de brasage 12 est avantageusement supérieure à 1.5 mm, en particulier supérieure à 2 mm. Une telle longueur Lo contribue à assurer une étanchéité du volume interne vis-à-vis du second flux. De plus, cette longueur est optimisée pour assurer une bonne résistance à la corrosion.The overlap zone 14 extends over a length Lo defining the length of the solder joint 12. Preferably, the length Lo of the brazing joint 12 is advantageously greater than 1.5 mm, in particular greater than 2 mm. Such a length Lo contributes to ensuring a tightness of the internal volume vis-à-vis the second flow. In addition, this length is optimized to ensure good resistance to corrosion.

Les zones de contact 13 sont avantageusement obtenues lors de l'opération d'emboutissage des plaques 10 de telle sorte que les dispositions proposées par la présente invention ne nécessitent pas d'action particulière pour conformer le bord de liaison 5 des tubes plats 3 et les zones de contact 13 des plaques 10.The contact zones 13 are advantageously obtained during the stamping operation of the plates 10 so that the arrangements proposed by the present invention do not require any particular action to conform the connection edge 5 of the flat tubes 3 and the contact areas 13 of the plates 10.

Selon un premier mode de réalisation tel qu'illustré à la figure 4, les zones de contact 13 sont de forme sensiblement cylindrique. Plus particulièrement, les zones de contact 13 sont agencées selon un cylindre d'axe D disposé perpendiculairement au deuxième plan d'extension générale P2 ou plan de contact P2 de la plaque 10 et au plan de symétrie P2' des tubes plats 3. Le cylindre d'axe D repose sur le contour de l'orifice de communication 4 réalisé dans le bord de liaison 5 du tube plat 3. Selon l'exemple de la figure 4, les zones de contact 13 présentent un contact axial de longueur Lo selon l'axe D entre elles.According to a first embodiment as illustrated in figure 4 the contact areas 13 are substantially cylindrical in shape. More particularly, the contact zones 13 are arranged in a cylinder of axis D arranged perpendicularly to the second general plane of extension P2 or contact plane P2 of the plate 10 and the plane of symmetry P2 'of the flat tubes 3. The cylinder axis D rests on the contour of the communication port 4 made in the connecting edge 5 of the flat tube 3. According to the example of the figure 4 the contact zones 13 have an axial contact of length Lo along the axis D between them.

La figure 5 présente un deuxième mode de réalisation de la présente invention dans lequel les zones de contact 13 sont de forme sensiblement coniques. Plus particulièrement, les zones de contact 13 sont agencées en un cône d'axe D' disposé perpendiculairement au deuxième plan d'extension générale P2 ou plan de contact P2 de la plaque 10 et au plan de symétrie P2' des tubes plats 3. Le cône d'axe D' repose sur le contour de l'orifice de communication 4 réalisé dans le bord de liaison 5 du tube plat 3. Selon l'exemple de la figure 5, les zones de contact 13 présentent un contact axial de longueur Lo selon l'axe D' entre elles. Ces dispositions facilitent un assemblage par emboîtement de deux tubes plats 3 adjacents.The figure 5 presents a second embodiment of the present invention wherein the contact areas 13 are substantially conical in shape. More particularly, the contact zones 13 are arranged in a cone of axis D 'arranged perpendicularly to the second general plane of extension P2 or contact plane P2 of the plate 10 and to the plane of symmetry P2' of the flat tubes 3. axis cone D 'rests on the contour of the communication port 4 made in the connecting edge 5 of the flat tube 3. According to the example of the figure 5 the contact zones 13 have an axial contact of length Lo along the axis D 'between them. These arrangements facilitate an assembly by interlocking two adjacent flat tubes 3.

Il résulte finalement des dispositions présentées sur les figure 4 et figure 5, une facilité d'assemblage des tubes plats 3 les uns avec les autres à partir d'un encastrement de leurs zones de contact 13 respectives. En effet, selon les premier et deuxième modes de réalisation selon les figures 4 et 5, les zones de contact 13 sont globalement d'extension rectiligne.Finally, it results from the provisions presented on Figure 4 and Figure 5 , an ease of assembly of the flat tubes 3 with each other from a embedding their respective contact areas 13. Indeed, according to the first and second embodiments according to the Figures 4 and 5 , the contact areas 13 are generally rectilinear extension.

Les figures 6 à 8 présentent respectivement des troisième, quatrième et cinquième modes de réalisation de la présente invention. Selon ces variantes, les zones de contact 13 comportent au moins un point d'inflexion 17. On entend par point d'inflexion, une partie de la zone de contact 13 au niveau de laquelle la direction d'extension de la zone de contact 13 est modifiée.The Figures 6 to 8 present third, fourth and fifth embodiments of the present invention respectively. According to these variants, the contact zones 13 comprise at least one inflection point 17. By inflection point is meant a part of the contact zone 13 at which the direction of extension of the contact zone 13 is modified.

Selon cet agencement, la zone de contact 13 comporte alors une première zone de contact élémentaire 15 et une deuxième zone de contact élémentaire 16 disposées de part et d'autre du point d'inflexion 17. La présence du point d'inflexion 17 permet, notamment, de réduire le phénomène de corrosion. En effet, le point d'inflexion 17 contribue à limiter le développement de la corrosion dans la surface de contact 13 en constituant un obstacle à la propagation de cette dernière.According to this arrangement, the contact zone 13 then comprises a first elementary contact zone 15 and a second elementary contact zone 16 disposed on either side of the point of inflection 17. The presence of the inflection point 17 allows, in particular, to reduce the phenomenon of corrosion. Indeed, the point of inflection 17 contributes to limiting the development of corrosion in the contact surface 13 by constituting an obstacle to the propagation of the latter.

Selon la variante illustrée sur la figure 6 présentant un troisième mode de réalisation, les zones de contact 13 présentent un unique point d'inflexion 17. Ainsi, selon un exemple préféré du troisième mode de réalisation, les zones de contact 13 sont coudées. La première zone de contact élémentaire 15 et la deuxième zone de contact élémentaire 16 sont globalement disposées orthogonalement l'une avec l'autre. Selon une autre forme de réalisation, la première zone de contact élémentaire 15 et la deuxième zone de contact élémentaire 16 forment entre elles un angle A compris entre 0° et 180°, préférentiellement entre 0° et 90°.According to the variant illustrated on the figure 6 presenting a third embodiment, the contact zones 13 have a single point of inflection 17. Thus, according to a preferred example of the third embodiment, the contact zones 13 are bent. The first elemental contact area 15 and the second elementary contact area 16 are generally arranged orthogonally with each other. According to another embodiment, the first elementary contact zone 15 and the second elementary contact zone 16 form between them an angle A of between 0 ° and 180 °, preferably between 0 ° and 90 °.

La quatrième variante illustrée sur la figure 7 est telle que les zones de contact 13 présentent deux points d'inflexion 17. Ainsi, selon un exemple préféré du quatrième mode de réalisation, les zones de contact 13 sont agencées en une chicane. Selon cette disposition, la première zone de contact élémentaire 15 et la deuxième zone de contact élémentaire 16 sont globalement disposées parallèlement l'une avec l'autre et sont reliées entre elles par une zone de contact complémentaire 18 définie entre les deux points d'inflexion 17.The fourth variant illustrated on the figure 7 is such that the contact areas 13 have two points of inflection 17. Thus, according to a preferred example of the fourth embodiment, the contact areas 13 are arranged in a chicane. According to this arrangement, the first elementary contact zone 15 and the second elementary contact zone 16 are generally arranged parallel to each other and are interconnected by a complementary contact zone 18 defined between the two points of inflection. 17.

Selon une première alternative présentée à la figure 7, la première zone de contact élémentaire 15 et la deuxième zone de contact élémentaire 16 s'étendent selon des plans parallèles au deuxième plan d'extension générale P2 ou plan de contact P2 de la plaque 10 et au plan de symétrie P2' des tubes plats 3.According to a first alternative presented to figure 7 the first elementary contact zone 15 and the second elementary contact zone 16 extend in planes parallel to the second general extension plane P2 or P2 contact plane of the plate 10 and to the plane of symmetry P2 'of the flat tubes 3.

Selon une deuxième alternative non représentée, la première zone de contact élémentaire 15 et la deuxième zone de contact élémentaire 16 s'étendent selon des plans perpendiculaires au deuxième plan d'extension générale P2 ou plan de contact P2 de la plaque 10 et au plan de symétrie P2' des tubes plats 3.According to a second alternative not shown, the first elementary contact zone 15 and the second elementary contact zone 16 extend in planes perpendicular to the second general extension plane P2 or contact plane P2 of the plate 10 and to the plane of contact. symmetry P2 'of the flat tubes 3.

Enfin, selon une autre alternative, la première zone de contact élémentaire 15 et la deuxième zone de contact élémentaire 16 s'étendent selon des plans formant un angle quelconque avec le deuxième plan d'extension générale P2 ou plan de contact P2 de la plaque 10 et le plan de symétrie P2' des tubes plats 3.Finally, according to another alternative, the first elementary contact zone 15 and the second elementary contact zone 16 extend in planes forming any angle with the second general extension plane P2 or P2 contact plane of the plate 10 and the plane of symmetry P2 'of the flat tubes 3.

Les zones de contact 13 du quatrième mode de réalisation sont conformées de telle sorte que le zone de chevauchement 14 soit en forme de 'S'.The contact areas 13 of the fourth embodiment are shaped such that the overlap area 14 is S-shaped.

Selon une cinquième variante illustrée sur la figure 8, les zones de contact 13 présentent trois ou quatre points d'inflexion 17, de telle sorte que les zones de contact 13 forment une bosse ou un pic. Dans le cas où la zone de contact 13 comporte trois points d'inflexions 17, le point d'inflexion 17 compris entre les deux autres points d'inflexion 17 est un point de rebroussement. Dans les deux cas, les zones de contact 13 sont ménagées globalement parallèlement au plan général d'extension P2 ou plan de contact P2 de la plaque 10 et au plan de symétrie P2' des tubes plats 3. Préférentiellement, la première zone de contact élémentaire 15 et la deuxième zone de contact élémentaire 16 les plus éloignées l'une de l'autre sont parallèles entre elles.According to a fifth variant illustrated on the figure 8 the contact areas 13 have three or four inflection points 17, so that the contact areas 13 form a hump or a peak. In the case where the contact zone 13 comprises three points of inflection 17, the point of inflection 17 between the two other points of inflection 17 is a cusp. In both cases, the contact zones 13 are formed generally parallel to the general plane of extension P2 or contact plane P2 of the plate 10 and to the plane of symmetry P2 'of the flat tubes 3. Preferably, the first elementary contact zone 15 and the second elementary contact zone 16 furthest apart from each other are parallel to each other.

Selon les divers modes de réalisation décrits précédemment, la zone de contact 13 s'étend au moins partiellement selon la première direction x-x depuis le deuxième plan d'extension générale P2 ou plan de contact P2 de la plaque 10. Ainsi, selon les divers modes de réalisation, la zone de contact 13 s'étend en totalité selon la première direction x-x dans les exemples des figures 4 et 5. La zone de contact 13 s'étend partiellement selon la première direction x-x, les exemples des figures 6 à 8. Ainsi, en figure 6, la deuxième zone de contact élémentaire 16 de la zone de contact 13 s'étend partiellement selon la première direction x-x. En figure 7, la zone de contact complémentaire 18 de la zone de contact 13 s'étend partiellement selon la première direction x-x et en figure 8, la bosse et/ou le pic définis par les points d'inflexion s'étendent partiellement selon la première direction x-x.According to the various embodiments described above, the contact zone 13 extends at least partially in the first direction xx from the second general extension plane P2 or P2 contact plane of the plate 10. Thus, according to the various modes of embodiment, the contact zone 13 extends in all along the first direction xx in the examples of the Figures 4 and 5 . The contact zone 13 extends partially in the first direction xx, the examples of the Figures 6 to 8 . So, in figure 6 the second elementary contact zone 16 of the contact zone 13 extends partially in the first direction xx. In figure 7 the complementary contact area 18 of the contact zone 13 extends partially in the first direction xx and in figure 8 , the hump and / or the peak defined by the inflection points extend partially in the first direction xx.

Indifféremment et dans le cadre de la présente invention, la zone de contact 13 peut s'étendre depuis le deuxième plan d'extension générale P2 ou plan de contact P2 de la plaque 10 vers l'intérieur de la chambre supérieure 8 et/ou de la chambre inférieure 9 et/ou vers l'extérieure de la chambre supérieure 8 et/ou de la chambre inférieure 9.In the context of the present invention, the contact zone 13 may extend from the second general extension plane P2 or contact plane P2 of the plate 10 towards the interior of the upper chamber 8 and / or the lower chamber 9 and / or to the outside of the upper chamber 8 and / or the lower chamber 9.

La présente invention offre l'avantage de permettre l'utilisation de feuillards métalliques communs réalisés en alliage d'aluminium et couramment dénommés alliages longue durée. En particulier, de tels alliages sont des alliages de la série 3000 couverts par les matériaux de brasage de la série 4000. En utilisant ces alliages, la présente invention permet une réduction de l'épaisseur des plaques 10 à une épaisseur inférieure à 0.3 mm, plus particulier égale à 0,25 mm, tout en conservant une résistance optimisée à la corrosion.The present invention has the advantage of allowing the use of common metal strips made of aluminum alloy and commonly referred to as long-life alloys. In particular, such alloys are alloys of the 3000 series covered by the soldering materials of the 4000 series. By using these alloys, the present invention allows a reduction of the thickness of the plates 10 to a thickness of less than 0.3 mm. more particularly equal to 0.25 mm, while maintaining an optimized resistance to corrosion.

Bien évidemment, l'invention n'est pas limitée aux modes de réalisation décrits précédemment et fournis uniquement à titre d'exemple. Elle englobe diverses modifications, formes alternatives et autres variantes que pourra envisager l'homme du métier dans le cadre de la présente invention et notamment toutes combinaisons des différents modes de réalisation décrits précédemment.Of course, the invention is not limited to the embodiments described above and provided solely by way of example. It encompasses various modifications, alternative forms and other variants that may be considered by those skilled in the art in the context of the present invention and in particular any combination of the various embodiments described above.

Claims (12)

Plaque (10) d'un tube plat (3) pour un échangeur de chaleur (1) comprenant au moins un bord de liaison (5) s'étendant selon un plan de contact (P2) et comportant au moins une zone de contact (13) , caractérisée en ce que la zone de contact (13) s'étend depuis le plan de contact (P2) de la plaque (10) au moins selon une première direction (x-x) perpendiculaire au plan de contact (P2).Plate (10) of a flat tube (3) for a heat exchanger (1) comprising at least one connecting edge (5) extending along a contact plane (P2) and having at least one contact zone ( 13), characterized in that the contact zone (13) extends from the contact plane (P2) of the plate (10) at least in a first direction (xx) perpendicular to the contact plane (P2). Plaque (10) selon la revendication 1, caractérisée en ce que la zone de contact (13) s'étend depuis le plan de contact (P2) de la plaque (10) selon la première direction (x-x) sur une longueur supérieure ou égale à 1.5 mm.Plate (10) according to claim 1, characterized in that the contact zone (13) extends from the contact plane (P2) of the plate (10) in the first direction (xx) over a length greater than or equal to at 1.5 mm. Plaque (10) selon la revendication 1 ou 2, caractérisée en ce que la zone de contact (13) comporte au moins un point d'inflexion (17).Plate (10) according to claim 1 or 2, characterized in that the contact zone (13) comprises at least one point of inflection (17). Plaque (10) selon la revendication 3, caractérisée en ce que la zone de contact (13) comporte une première zone de contact élémentaire (15) et une deuxième zone de contact élémentaire (16) situées de part et d'autre du point d'inflexion (17).Plate (10) according to claim 3, characterized in that the contact zone (13) comprises a first elementary contact zone (15) and a second elementary contact zone (16) situated on either side of the point of contact. inflection (17). Plaque (10) selon la revendication 4, caractérisée en ce que la première zone de contact élémentaire (15) et la deuxième zone de contact élémentaire (16) sont parallèles entre elles.Plate (10) according to claim 4, characterized in that the first elementary contact zone (15) and the second elementary contact zone (16) are parallel to one another. Plaque (10) selon la revendication 4, caractérisée en ce que la première zone de contact élémentaire (15) et la deuxième zone de contact élémentaire (16) sont perpendiculaires entre elles.Plate (10) according to claim 4, characterized in that the first elementary contact zone (15) and the second elementary contact zone (16) are perpendicular to one another. Plaque (10) selon la revendication 4, caractérisée en ce que la première zone de contact élémentaire (15) et la deuxième zone de contact élémentaire (16) forment entre elles un angle (A) compris entre 0° et 180°, préférentiellement enter 0° et 90°.Plate (10) according to claim 4, characterized in that the first elementary contact zone (15) and the second contact zone elementary elements (16) form between them an angle (A) of between 0 ° and 180 °, preferably between 0 ° and 90 °. Plaque (10) selon l'une des revendications 1 à 7, caractérisée en ce que la zone de contact (13) est conformée en une chicane.Plate (10) according to one of claims 1 to 7, characterized in that the contact zone (13) is shaped as a baffle. Plaque (10) selon l'une des revendications 1 à 8, caractérisée en ce que la zone de contact (13) s'étend selon au moins une deuxième direction (y-y) parallèle au plan de contact (P2).Plate (10) according to one of claims 1 to 8, characterized in that the contact zone (13) extends in at least a second direction (yy) parallel to the contact plane (P2). Tube plat (3) constitué de deux plaques (10) selon l'une quelconque des revendications précédentes.Flat tube (3) consisting of two plates (10) according to any one of the preceding claims. Echangeur de chaleur (1) comportant au moins deux tubes plats (3) selon la revendication 10.Heat exchanger (1) comprising at least two flat tubes (3) according to claim 10. Echangeur de chaleur (1) selon la revendication 11, caractérisée en ce que les tubes plats (3) sont assemblés par leurs zones de contact (3) par un joint de brasage (12) de longueur supérieure ou égale à 1.5 mm.Heat exchanger (1) according to claim 11, characterized in that the flat tubes (3) are assembled by their contact areas (3) by a brazing joint (12) of length greater than or equal to 1.5 mm.
EP10162258A 2009-05-13 2010-05-07 Tube plate for a heat exchanger Withdrawn EP2253917A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0902294A FR2945614B1 (en) 2009-05-13 2009-05-13 TUBE PLATE FOR A HEAT EXCHANGER.

Publications (1)

Publication Number Publication Date
EP2253917A1 true EP2253917A1 (en) 2010-11-24

Family

ID=41278306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10162258A Withdrawn EP2253917A1 (en) 2009-05-13 2010-05-07 Tube plate for a heat exchanger

Country Status (3)

Country Link
EP (1) EP2253917A1 (en)
CN (1) CN101907418A (en)
FR (1) FR2945614B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019145556A1 (en) * 2018-01-29 2019-08-01 Valeo Systemes Thermiques Heat exchanger plate
US11098639B2 (en) * 2012-12-18 2021-08-24 Valeo Systemes Thermiques Flat tube for a charge air cooler and corresponding charge air cooler

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103837026A (en) * 2014-03-18 2014-06-04 清华大学 Microarray heat pipe gas-liquid heat exchange device
ES2679868B1 (en) * 2017-02-16 2019-06-21 Valeo Termico Sa HEAT EXCHANGER FOR GASES, ESPECIALLY FOR AN ENGINE EXHAUST GAS, AND MANUFACTURING METHOD OF SUCH EXCHANGER

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1165173A (en) * 1966-08-19 1969-09-24 Marston Excelsior Ltd Heat Exchanger
US3650321A (en) * 1969-11-21 1972-03-21 Tranter Mfg Inc Sheet metal radiator assembly
JP2001012888A (en) * 1999-07-01 2001-01-19 Showa Alum Corp Lamination type heat exchanger
US20050133210A1 (en) * 2003-12-18 2005-06-23 Mitsuharu Inagaki Easily assembled cooler
EP1696195A1 (en) * 2005-01-28 2006-08-30 Calsonic Kansei Corporation Air cooled oil boiler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050173100A1 (en) * 2004-01-20 2005-08-11 Calsonic Kansei Corporation Heat exchanger
CN101437646B (en) * 2006-01-19 2012-04-18 摩丁制造公司 Flat tube, flat tube heat exchanger, and method of manufacturing same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1165173A (en) * 1966-08-19 1969-09-24 Marston Excelsior Ltd Heat Exchanger
US3650321A (en) * 1969-11-21 1972-03-21 Tranter Mfg Inc Sheet metal radiator assembly
JP2001012888A (en) * 1999-07-01 2001-01-19 Showa Alum Corp Lamination type heat exchanger
US20050133210A1 (en) * 2003-12-18 2005-06-23 Mitsuharu Inagaki Easily assembled cooler
EP1696195A1 (en) * 2005-01-28 2006-08-30 Calsonic Kansei Corporation Air cooled oil boiler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11098639B2 (en) * 2012-12-18 2021-08-24 Valeo Systemes Thermiques Flat tube for a charge air cooler and corresponding charge air cooler
WO2019145556A1 (en) * 2018-01-29 2019-08-01 Valeo Systemes Thermiques Heat exchanger plate
FR3080174A1 (en) * 2018-01-29 2019-10-18 Valeo Systemes Thermiques PLATE FOR HEAT EXCHANGER

Also Published As

Publication number Publication date
FR2945614B1 (en) 2012-08-31
CN101907418A (en) 2010-12-08
FR2945614A1 (en) 2010-11-19

Similar Documents

Publication Publication Date Title
EP2105694B1 (en) Heat exchanger
EP2208955B1 (en) heat exchange fin for a heat exchange system
FR2546287A1 (en) HEAT EXCHANGER, PARTICULARLY FOR HEATING THE INTERIOR OF PASSENGER CARS
EP2064506B1 (en) Heat exchanger, in particular charge air cooler
EP2689205B1 (en) Connecting reinforcement for between the plates of a heat exchanger
WO2011023825A1 (en) Heat exchanger
EP2912396B1 (en) Heat exchanger, particularly for a motor vehicle
EP2253917A1 (en) Tube plate for a heat exchanger
FR3081983A1 (en) Heat exchange device
EP2105693B1 (en) Heat exchanger with high cooling power
EP2056054B1 (en) Tube for heat exchanger
WO2020178536A1 (en) Temperature control device, in particular cooling device for a motor vehicle
FR2832788A1 (en) Profile for tubes in heat exchangers used in motor vehicles, uses folded metal sheet to form tube and bends one edge over so that it rests on other wall of tube, providing strength to the tube during manufacture
EP1015838B1 (en) Motor vehicle heat exchanger and method for making same
EP2852803B1 (en) Heat exchanger tube, heat exchanger tube bundle and heat exchanger comprising such a bundle
WO2008135321A1 (en) Extruded heat exchanger
EP2936038B1 (en) Flat tube for a charge air cooler and corresponding charge air cooler
WO2014082931A1 (en) Gas heat exchanger, in particular for exhaust gases of an engine
WO2024008650A1 (en) Device for thermal regulation, in particular for cooling
WO2021136897A1 (en) Tube heat exchanger having spacers
EP2764317A1 (en) Heat exchanger
FR2989766A1 (en) Heat exchange beam for radiator for cooling engine of car, has heat exchange inserts connected to tubes, where each tube includes channel with corrugations to enhance capacity of tube to withstand internal pressure in transition zone
FR2826108A1 (en) Automobile heat exchanger comprises two manifolds each provided with two rows of holes, tube bundle, received in holes, has inserts alternately located with tubes in separate rows

Legal Events

Date Code Title Description
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

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 SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

17P Request for examination filed

Effective date: 20110423

R17P Request for examination filed (corrected)

Effective date: 20110421

17Q First examination report despatched

Effective date: 20170306

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170718