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
  • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
  • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
  • F25B39/00—Evaporators; Condensers
  • F25B39/04—Condensers
• • 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
  • F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
• • 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
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates
  • F28F9/0246—Arrangements for connecting header boxes with flow lines
  • F28F9/0248—Arrangements for sealing connectors to header boxes
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
  • F25B2339/00—Details of evaporators; Details of condensers
  • F25B2339/04—Details of condensers
  • F25B2339/044—Condensers with an integrated receiver
  • F25B2339/0446—Condensers with an integrated receiver characterised by the refrigerant tubes connecting the header of the condenser to the receiver; Inlet or outlet connections to receiver
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
  • F25B2500/00—Problems to be solved
  • F25B2500/01—Geometry problems, e.g. for reducing size
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
  • F28D2021/0084—Condensers

Definitions

• Heat exchanger comprising at least one flange for a collector of this exchanger and a reservoir intended to equip such an exchanger
• the invention relates to a heat exchanger, in particular a condenser of a motor vehicle air-conditioning installation and a reservoir intended to equip such an exchanger.
• It relates more particularly to a heat exchanger adapted to be traversed by a fluid, comprising at least one flange connected to a collector of the exchanger, and a beam for conveying the fluid, connected to the collector and extending in a plane. .
• Flanges of this type are already known, used in particular for connecting the inlet and / or outlet pipes to at least one collector of a condenser in a circuit forming part of an air-conditioning installation for a motor vehicle.
• an air conditioning installation comprises a compressor, a condenser, an expander and an evaporator traveled in this order by a refrigerant.
• the condenser is placed at the front of the vehicle, that is to say in front of the cooling radiator of the heat engine, and it is provided with at least one manifold connected on the one hand to tubings of inlet and outlet of the fluid in the condenser, and secondly, to a beam of the heat exchanger.
• the flange then makes it possible to connect the manifold to the inlet and outlet pipe, one serving for supplying the gaseous cooling fluid from the compressor and the other for discharging condensed refrigerant towards the expander, said manifolds being provided with attachment means complementary to those provided on the flange.
• the flange is obtained either by stamping and then machining, or by extrusion and machining or any other manufacturing method, the flange then being brazed to the collector.
• the flange is positioned on the collector in the plane of the beam, that is to say that a connection axis that has 1 connection opening of the flange forms a zero or very low angle with the plane beam.
• the position of the flange on the manifold may have to be different, that is to say that the angle of the connection axis with the plane of the beam may have to be different. to be non-zero.
• bent flanges said "90 °".
• the purpose of the invention is in particular to improve the situation.
• a heat exchanger capable of being traversed by a fluid, comprising at least one flange connected to a manifold of the exchanger, and a beam for transporting the fluid, connected to the manifold.
• the manifold has two parts connected by edges of the two parts, and the flange is connected to the manifold in the connection region of these two parts.
• the beam extends in a plane, and the connection opening has an axis of connection forming a substantially non-zero angle with the plane of the beam.
• Such an exchanger has the advantage of using a flange substantially similar to conventional straight flanges. This means both cost savings and reduced congestion. This makes it possible to keep the conventional brazing technology to connect the flange to the collector without having to use a specially designed part.
• an edge of at least one of the two parts has an opening for receiving the flange.
• the edge of the part that has the receiving opening is set back relative to the corresponding edge of the other part, the latter covering it in the connection region and that the two parts are shells having a profile. substantially semicircular, one of which is extended by two edges clamps.
• a face of the flange has a projection arranged to be housed in the receiving opening of the manifold, which projection has a shape for locking in position of the flange at the receiving opening before soldering.
• the flange has a shape complementary to that of the manifold in the region of the connection opening. This facilitates the sealing of the assembly.
• said flange is a fluid inlet / outlet flange and comprises a connection opening.
• the manifold then has a transfer opening opposite which is placed the connection opening of the flange. It can then be provided that the projection has a depression, so that it corresponds exactly ⁇ to the portion of the header that has been cut to form the receiving opening. Thus, the fluid entering or leaving the header box does not see its flow be disturbed.
• connection angle is straight and the transfer opening is included in the receiving opening, the projection having a cutout to preserve the transfer opening.
• the invention aims in particular a tubular collector and flat-tube condenser for a motor vehicle air conditioning circuit having the aforementioned characteristics.
• the invention also relates to a tank for equipping a heat exchanger adapted to be traversed by a fluid, said exchanger comprising at least one collector box provided in two parts, connected by edges of the two parts, and a beam_j> our transporting the fluid, connected to said collector box.
• the reservoir comprises at least one flange, said flange being able to be connected to said manifold in the bonding region of these two parts. It is therefore one or more flanges in accordance with those mentioned above, said flanges being this time connected to a bottle before being assembled on the collector of the exchanger.
• the said flange or flanges may have all or part of the characteristics of the flanges of the various embodiments of the exchanger already described.
• Such a reservoir has the advantage of being pre ⁇ assembled on said heat exchanger in a single operation.
• the invention furthermore aims at such an exchanger, equipped with said bottle, the flange (s) of the bottle being connected to the manifold of the exchanger in the connection region of these two parts.
• FIG. 1 is a block diagram of a flat-tube heat exchanger according to the invention.
• FIG. 2 is an exploded perspective view of a header box used in the heat exchanger of FIG. 1;
• FIG. 3 is a perspective view of FIG. 2 after assembly
• FIG. 4 is a sectional view of an inlet flange and / or a fluid outlet for a heat exchanger of FIG.
• FIG. 5 is a sectional view along the axis W of Figure 4.
• FIG. 6 is a close-up view of detail VI of the flange of FIG. 5;
• FIG. 7 is a schematic sectional view of a flange mounted at a right angle on a manifold of the exchanger of Figure 1;
• Figure 8 is a variant showing a schematic sectional view in which the flange is mounted at any angle non-zero and not straight on the manifold;
• Figure 9 is a view of a coolant tank attached to a collector box of a heat exchanger;
• FIG. 10 is a view of the coolant reservoir of FIG. 9;
• FIG. 11 is a sectional view of a connection flange of a cooling liquid reservoir to a heat exchanger of FIG. 1;
• FIG. 1 shows a heat exchanger according to
• the invention comprising a bundle of flat tubes interposed between two manifolds.
• This exchanger is a condenser for an air conditioning circuit of a motor vehicle.
• the beam 2 is formed of a multiplicity of flat tubes 4 arranged parallel to each other and alternating with corrugated inserts 6. These spacers are formed from a metal strip which is deformed to form corrugations. An interlayer 6 is disposed between two adjacent tubes 4 and comes into respective contact with these two tubes 4 by end regions of the corrugations.
• the tubes 4 of the bundle are inserted, at each of their ends, in openings made in collector plates 8, also called collectors.
• collector plates 8 are closed by a cover 9 to consti ⁇ kill manifolds 10, for example coolant boxes or air.
• partitions 12 which divide the boxes collectri ⁇ these 10 into separate rooms.
• This exchanger is fed at its boxes collectri ⁇ these 10 by two flanges 14 which receive each respective- An inlet manifold 16 and an outlet manifold 18 through which the fluid enters and exits the exchanger.
• This type of exchanger is very useful for manufacturing, for example, condensers for a motor vehicle air conditioning circuit.
• FIGS 2 and 3 are perspective views of a manifold used in the exchanger of Figure 1.
• This manifold 10 is in two parts, consisting of the manifold plate 8 in which fits the cover 9.
• the collector plate 8 is made of aluminum and has a hollow half-cylinder shape.
• the collecting plate 8 has a determined thickness, and receives, in the mounted exchanger, the bundle 2 of flat tubes in a lower part of the half-cylinder indicated by the arrow F. For practical reasons, the openings for receiving the tubes of the collector plate 8 are not shown.
• the lid 9 is also made of aluminum. It has a half-cylinder shape identical to that of the header plate 8, extended by two connecting edges 22.
• the edges 22 53sen ⁇ tent a pinch. This nip allows the connection of the collector plate 8 and the cover 9. In fact, the cou ⁇ vercle can come to cover the collector plate 8, thanks to their respective half-cylinders. At the same time, the edges 22 bear against an internal wall 23 of the collecting plate 8, thanks to the pinching of the edges 22.
• One of the edges 22 has a recess 24, here located at the end of the cover 9. This recess is made over the entire height of the connecting edge 22, so that it is covered by the header plate 8 when the cover 9 fits over it (as can be seen in FIG. 3), and that the end of the cover 9 accessible to through the recess 24 belongs to the half-cylinder shaped part.
• the recess 24 is extended by a partial recess 26 of the half-cylinder-shaped portion of the cover 9. The role of this recess will be explained later.
• FIG. 4 is a sectional view of a flange 14 of the exchanger of FIG. 1.
• the flanges 14 are inlet flanges and / or fluid outlet flanges.
• the flange 14 comprises a body 140 dug a blind hole 142 side by side with a through opening 144.
• the blind hole 142 is intended to receive means for fixing the heat exchanger in its environment.
• the opening 144 has an axis W.
• An upper portion of the flange is intended to receive the inlet tubing 16 or fluid outlet 18, the opening 144 then tapering into a lower part which opens out of the body 140 into the collector box 10 in 146.
• the flange 14 has a means of complementary shape to the inner wall of the recess 24.
• This means may in particular take the form of a projection 148 which is can observe more precisely in Figures 5 and 6 and whose role will be explained later.
• the projection 148 has a recess 154 whose shape is similar to that of the nipping of the edges 22 of the cover 9.
• FIG. 6 is an enlargement of the reference VI of Figure 5.
• the projection 148 is provided at its end 153 of excrescences cooperating with the inner wall 23 of the manifold.
• the protrusions emit two spaces 156 and 158 between the projection 148 and the body 140 of the flange whose thickness is substantially equal to that of the cover 9 and the collector portion 8.
• the projection 148 corresponds exactly in shape and size to the 24 of the cover 9. The projection 148 thus allows the locking in position of the flange 14 before brazing.
• the flange 14 is thus made that the opening 144 opening 146 is provided to ensure the passage of fluid from one outside to 1 inside the exchanger and vice versa.
• FIG. 7 shows how the flange 14 is mounted on the manifold 10.
• the flange 14 Before fitting the cover 9 onto the collector plate 8, the flange 14 is placed at the recess 24 of the cover 9, resting on the flange 14. - this.
• the projection 148 having exactly the same size as the recess 24, it "plugs" it and we just block the flange 14 by fitting the collector plate 8 in the hole 158 on the one hand and against the half-cylinder of the cover 9 on the other hand, the space 156 being filled by the latter opposite the opening 24.
• the projection here has a notch in order to disengage the opening 146 from the flange 14, opposite the partial recess 26.
• the recess 26 allows to improve the flow of the fluid opening into
• the flange here forms a 90 ° angle with the plane of the beam 2.
• the projection 148 of the flange 14 and the opening 144 which allows connection to the manifold 10 are linked.
• FIGS 9 to 11 show a reservoir 220 for equipping an exchanger as described above.
• the reservoir comprises connecting means 14 of the reservoir 220 on the exchanger, the connecting means 14 being flanges 14 as described above.
• the tank usually houses filtration means for dividing the interior of the tank into an upstream compartment that receives condensed, unfiltered refrigerant, and a downstream compartment that receives the condensed and filtered coolant.
• the tank also houses dehydration means, for example a desiccant cartridge, housed in the upstream compartment of the tank.
• the tank 220 has three flanges 14.
• a first flange 14A located in the upper part of the tank 220, is a fastening flange.
• the other two flanges 14B and 14C are located in part lower tank 220 and are respectively a fluid passage flange of the collector of the exchanger to the tank and a flange for passing the fluid from the reservoir to the collector of the exchanger.
• the flange or flanges are, for example, made from material with the body of the tank. Such a reservoir is obtained, in particular, by extrusion of the body. It is provided with a material thickness, in which are then formed the flanges by machining.
• the opening 24 is not located at the end of the cover but anywhere on it, in which the flange 14 comprises two 144-type openings for fluid entry and exit, and wherein these openings are placed so that the flange forms any angle with the plane of the heat exchanger bundle.
• heat exchanger 10 is, following the positioning of the flange between the two parts of the collec ⁇ tor and the assembly of the other parts of the exchanger, brazed to ensure its assembly.

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=34953048

Family Applications (1)

Country Status (3)

Families Citing this family (6)

Family Cites Families (10)

• 2004
  • 2004-09-28 FR FR0410254A patent/FR2875897A1/fr active Pending
• 2005
  • 2005-09-28 EP EP05807775A patent/EP1817536A1/de not_active Withdrawn
  • 2005-09-28 WO PCT/FR2005/002403 patent/WO2006035165A1/fr not_active Ceased

Non-Patent Citations (2)

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