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
  • 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
  • F28D1/04—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 tubular conduits
  • F28D1/053—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 tubular conduits the conduits being straight
  • F28D1/0535—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 tubular conduits the conduits being straight the conduits having a non-circular cross-section
  • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
• • 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
  • F28F9/0224—Header boxes formed by sealing end plates into covers
• • 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
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
  • F28F2265/32—Safety or protection arrangements; Arrangements for preventing malfunction for limiting movements, e.g. stops, locking means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2275/00—Fastening; Joining
  • F28F2275/04—Fastening; Joining by brazing
• • 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
  • F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove

Definitions

• the invention relates to the field of heat exchangers, in particular for motor vehicles.
• It relates more precisely to a heat exchanger comprising a bundle of tubes, at least one collector into which the tubes of the bundle open, as well as a manifold box covering the collector.
• Such a heat exchanger can constitute, for example, a radiator for cooling the vehicle engine, a radiator for heating the passenger compartment, or even an evaporator or a condenser of an air conditioning circuit.
• the tube bundle is usually mounted between two manifolds through their respective manifolds, and is suitable for being traversed by a fluid.
• a fluid In the case of an engine cooling radiator or a passenger compartment heating radiator, this fluid is the liquid used for cooling the engine. In the case of an evaporator or an air conditioning condenser, this fluid is a refrigerant.
• the collector is usually made in the form of a plate which is provided with holes to receive the ends of the tubes of the bundle. These holes are generally bordered by a collar to facilitate watertight mounting between. the manifold and the bundle tubes.
• This assembly can be carried out either by brazing or by means of a seal.
• the manifold which covers the collector is arranged to cooperate in sealed manner with him.
• the manifold can be made in the form of a metal part which is connected by soldering to the collector.
• manifold and the manifold constitute very different specific parts which are designed to cooperate with each other.
• the invention aims to simplify the production of manifolds and manifolds.
• the manifold and the manifold are formed by two generally symmetrical half-shells on either side of a junction plane and having respective flat seals assembled along said junction plane.
• the two half-shells are metallic, for example aluminum, and their respective flat joints are assembled by brazing.
• the respective flat seals are formed towards the outside of the half-shells.
• the flat seals thus formed towards the outside are advantageously held by at least one claw.
• the respective flat seals are formed towards the inside of the half-shells.
• one of the. flat seals thus formed inwards advantageously form a stop with respect to the bundle tubes.
• the flat seals can have respective imprints of conjugate shapes which are intended to fit together by shape cooperation to ensure that the two half-shells are held in position.
• the collector half-shell further comprises holes for the reception of the tubes of the bundle.
• a heat exchanger manifold can include one or more pipes used for the inlet or outlet of a heat transfer fluid.
• the two half-shells are formed with half-pipes generally symmetrical with respect to the junction plane, so as to form a complete pipe (also called "spacer"), when the two half-shells are assembled together.
• the half-shells are each produced by forming a metal sheet.
• forming is meant to denote at least one conventional mechanical operation, such as for example stamping, bending, rolling, etc.
• the half-pipes are also produced during the forming of the two half-shells.
• the heat exchanger also comprises corrugated spacers placed between the tubes, the assembly being formed by brazing.
• FIG. 1 is a partial side view of a heat exchanger according to the invention
• FIG. 2 is a cross-sectional view along the line
• FIG. 3 is a perspective view of an assembly collector-collector box according to the invention, in another embodiment
• FIG. 4 is a partial perspective view of a heat exchanger according to the invention, in which the manifold and the manifold are each formed with a half-pipe;
• Figure 5 is a sectional view similar to Figure 2 in another embodiment.
• FIG. 6 is a partial sectional view of two flat seals provided with holding means.
• FIGS. 1 and 2 partially show a heat exchanger 10 according to the invention comprising a bundle 12 formed of flat tubes 14, mutually parallel, and between which corrugated spacers 16 are arranged.
• the tubes 14 are received in a collector 18, which is capped by a manifold 20 to form a volume which communicates with the tubes 14 of the bundle.
• the assembly can thus be traversed by a heat transfer fluid which exchanges heat with an air flow sweeping the beam.
• the tubes 14 of the bundle are advantageously received in an identical or similar collector (not shown), also capped by a manifold (not shown).
• the manifold 18 and the manifold 20 are formed of two generally symmetrical half-shells, assembled on either side of a junction plane P.
• these two half-shells are identical and they have respective flat seals 22 and 24 formed at the periphery of the shells and towards the outside.
• the two half-shells 18 and 20 are advantageously produced by forming and in particular by stamping a metal sheet, preferably made of aluminum or an aluminum-based alloy. These two half-shells are formed from the same basic elements and with the same tools.
• the only difference here lies in the fact that the half-shell forming the manifold 18 must also be machined to form elongated holes 26 (FIG. 2) suitable for each receiving one end of a tube 14.
• These holes are advantageously formed by press cutting. They are advantageously surrounded each by a collar improving the junction between the tube and the collector.
• all the other components of the heat exchanger are formed from metal, preferably from the same metal or metal alloy as the manifold and the manifold.
• the assembly is assembled by brazing, advantageously by passage through the oven, during the same operation.
• the assembly of the manifold and the manifold is carried out in the same junction plane with a flat docking against the flat joints 22 and 24.
• This design allows for shallow stampings, which saves material.
• a certain part of the stamping can be common to the two half-shells, which makes it possible to reduce the manufacturing times.
• Figure 3 shows a manifold / manifold assembly similar to that of Figures 1 and 2, but in an alternative embodiment.
• the main difference here lies in the fact that one of the flat seals, namely the flat seal 22, has two protruding tabs 28 and 30 which can be used, for example, for wedging the heat exchanger in a housing (not represented) .
• a claw 32 for holding the two flat seals against each other.
• the respective half-shells 18 and 20 are each formed with half-pipes 34 and 36 each having a substantially semi-shaped section circular. These two half-pipes are generally symmetrical with respect to the junction plane. Thus, when the two half-shells are assembled together, the half-pipes 34 and 36 jointly form a complete pipe 38, also called "spacer".
• This tubing is used for the inlet or outlet of a heat transfer fluid circulating in the heat exchanger.
• the respective flat seals 22 and 24 of the two half-shells continue at the level of the half-pipes 34 and 36, thus improving the tight junction of these two half-pipes together.
• the two half-pipes 34 and 36 are advantageously produced by forming, in particular by stamping, at the same time as the two half-shells, which again facilitates manufacturing.
• the interface with the pipes can be provided by a brazed element which surrounds the two half-shells.
• This embodiment offers the advantage of. allow an oblong or even a rectangle connection to the box water. This also allows a reduction in the height of the manifold, which results in a reduction in the material used and a reduction in size.
• This design allows connection of a tubing either laterally on the manifold, or at the end of the latter.
• Figure 5 differs from that of Figure 2 in that the respective flat seals 22 and 24 are formed towards the inside of the half-shells, instead of the outside. Under these conditions, the forming of the half-shells cannot be obtained only by stamping and requires at least one additional operation to fold the flat joints inward.
• one of the flat seals here the seal 22 forms a stop with respect to the tubes 14 of the bundle 12. This makes it possible to automatically position the tubes in the axial direction relative to the manifold.
• the flat seals 22 and 24 have respective indentations 40 and 42 of conjugate shapes which are intended to fit together by shape cooperation to maintain the two half-shells in position.
• these imprints are obtained by a U-shaped folding of each of the flat seals. These impressions can be made either on the whole, or on a portion of the periphery of the half-shells.
• the invention finds particular application to heat exchangers of motor vehicles.
• a heat exchanger can constitute, for example, a radiator for cooling the vehicle engine, a radiator for heating the passenger compartment, or even an evaporator or a condenser of an air conditioning circuit.

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)
• Air-Conditioning For Vehicles (AREA)
• Motor Or Generator Cooling System (AREA)
• Power Steering Mechanism (AREA)
• Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
• Separation By Low-Temperature Treatments (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

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• 2002
  • 2002-06-04 FR FR0206857A patent/FR2840395B1/fr not_active Expired - Lifetime
• 2003
  • 2003-06-02 DE DE60330238T patent/DE60330238D1/de not_active Expired - Lifetime
  • 2003-06-02 EP EP03756045A patent/EP1509740B1/de not_active Expired - Lifetime
  • 2003-06-02 EP EP09170676.2A patent/EP2128548B1/de not_active Expired - Lifetime
  • 2003-06-02 WO PCT/FR2003/001657 patent/WO2003102485A1/fr not_active Ceased
  • 2003-06-02 ES ES03756045T patent/ES2333861T3/es not_active Expired - Lifetime
  • 2003-06-02 BR BRPI0304974-4B1A patent/BR0304974B1/pt not_active IP Right Cessation
  • 2003-06-02 AU AU2003253061A patent/AU2003253061A1/en not_active Abandoned
  • 2003-06-02 AT AT03756045T patent/ATE449944T1/de not_active IP Right Cessation
  • 2003-06-02 JP JP2004509329A patent/JP4461010B2/ja not_active Expired - Lifetime

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