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
  • F28F9/0224—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
• • 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
  • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits

Definitions

• Metal collector box, heat exchanger comprising such a collector box and method of manufacturing such a collector box
• the invention relates to a metal collector box for a heat exchanger, a heat exchanger comprising such a collector box and a method for obtaining such a collector box.
• collector boxes having a collector plate and a metal cover.
• Such metal manifolds reduce the bulk of a heat exchanger with respect to the same heat exchanger having manifolds having a plastic portion.
• JP 2003/302189 proposes to punch a wall of a header box where will be inserted such a straight inlet / outlet fluid manifold.
• the present invention aims to overcome this disadvantage.
• it proposes a manifold of the type defined in the introduction in which the collar is adapted to allow an oblique adaptation of said tubing with respect to the face.
• the present invention also relates to a heat exchanger comprising at least one header as previously defined and a method for obtaining such a header comprising at least the following steps:
• FIG. 1A partially shows a heat exchanger comprising a collecting box according to the invention.
• Figure 1B shows a view of the manifold box in section BB of Figure 1A.
• Figure 2 shows a sectional view along N-II of a portion of the manifold of Figure 1A.
• Figure 3 shows a variant of a header box according to the invention.
• Figure 4 is a side view of a portion of a manifold of a variant of the invention.
• Figure 5 shows a sectional view of a manifold according to the invention prior to assembly with a fluid inlet / outlet manifold.
• Figure 6 shows a sectional view of a portion of the manifold according to another embodiment.
• FIG. 1 shows a heat exchanger 10 comprising a manifold 12 according to the invention in which open ends of tubes 14 of a heat exchange bundle.
• the tubes 14 are tubes, preferably flat, parallel between which are arranged corrugated inserts 16 forming heat exchange fins.
• the exchanger 10 comprises an opposite header (not shown) which may be similar to the manifold 12 and into which opens the other end of the tubes 14.
• the exchanger 10 which finds a particular application in motor vehicles is designed to be made by brazing.
• the manifold 12 consists of two nested metal parts, namely a cover 19 and a manifold 18, to be assembled by brazing.
• the metal used to form the header 12 is preferably aluminum.
• the collector 18 is in the form of a U-shaped metal member having a bottom wall provided with holes for insertion of the tubes 14 and two side walls connected to the bottom wall.
• the manifold 12 has at least one face 20 which, in the example shown, is flat.
• This face 20 which comprises a collar 22 intended to allow the adaptation of a pipe, this pipe being preferably a fluid inlet / outlet pipe.
• the collar 22 is oriented obliquely with respect to the flat face 22 on which it is arranged.
• the collector 18 comprises the flat face 20 on which the collar 22 is provided.
• each branch of the U of the collector 18 has an extension 23 arranged facing each other. and one of the two branches is the flat face 20 which comprises the collar 22.
• the manifold 12 has only one collar 22. However, it is quite possible to provide several collars for adapting several manifolds.
• the collar 22 is inclined relative to said face, for example, an angle ⁇ between 0 and 70 °.
• connection radius R of the collar 22 with the flat face 20 is angularly variable and is at least equal to the thickness of the flat face 20.
• the connecting radius R is, for example, at least equal to material thickness of the wall of the collector box or there is a risk of material tearing at the time of manufacture of the collet and a risk of breakage due to mechanical stresses of the type for example vibratory.
• the collar 22 further defines, at its end E, an annular surface which is included in the same plane P.
• the plane P of the annular surface and the face plane bearing the collar form an angle ⁇ which is preferably less than or equal to ( ⁇ / 2) - ⁇ .
• the collar 22 may be oriented towards the outside or towards the inside of the manifold 10 as shown respectively in FIGS. 2 and 3.
• the tubes may be inserted around the collar 22 or inside of it.
• a particular embodiment shown in Figure 4 proposes that the collar 22 is oval and has a major axis X-X.
• the flat face 20, meanwhile, has a longitudinal axis YY parallel to the longitudinal axis of the box.
• the major axis of the collar 22 and the longitudinal axis Y-Y of the plane face 20 form an angle ⁇ of 90 ° and 270 °.
• the collar 22 further comprises an outer diameter D and a height H relative to the planar face 20 measured at said outer diameter.
• the collar 22 forms a hole 24 in the face 20.
• the height of the collar 22 is dependent on a ratio between the size of the hole 24 formed by the collar 22 and the outside diameter D of the collar 22.
• the collar 22 of the manifold 12 allows the adaptation of a straight pipe 26.
• this pipe 26 is a fluid inlet / outlet manifold.
• the collar 22 comprises at least one positioning means 28 for the tubing.
• This positioning means 28 may in particular be placed at the end E of the collar.
• the positioning means is further adapted to cooperate with a complementarily shaped means 30 located on the tubular 26.
• the complementary positioning means 28 and 30 may take different forms.
• the collar 22 may comprise a protrusion 28 of complementary shape to a bore provided at the end of the tubing 26.
• the collar 22 further comprises means for holding the tubing and the collar before brazing.
• the holding means may, for example, consist of a crimping, punching or respective diameters allowing tight assembly.
• the plating layer may be located on an outer side of the flat face having the flange or on both sides thereof.
• the plating layer may also be located at the level of the tubing.
• the embodiment described here is related to a manifold with a flat face on which is fitted a collar for the adaptation of a tubing.
• the invention also applies to a collector box having a face, for example, curved, rounded or deformed on which is arranged a collar identical to that described above.
• the manifold 12 comprises a deformation 40 which is located on a flat face 20.
• the deformation has a flat surface 42 at least at the face 20.
• the collar 22 is arranged on the deformation 40.
• the collar 22 is, in this example, made perpendicular to the deformation 40. It is also possible to orient this collar obliquely with respect to the deformation 40.
• the deformation 40 is oriented towards the inside of the manifold 20.
• Another embodiment not shown provides that the deformation is oriented towards the inside of the manifold.
• the collar 22 is able to allow an oblique adaptation of a tubing with respect to the flat face 20 on which the deformation 40 is arranged.
• the present invention also proposes a method of manufacturing a collecting box as defined previously comprising at least the following steps:
• This manufacturing method makes it possible to control the thickness of material and thus not to concentrate the stresses at the sensitive zones of the collecting box and in particular at the level of the collar.

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)
• Details Of Heat-Exchange And Heat-Transfer (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (4)

• 2006
  • 2006-02-24 FR FR0601628A patent/FR2897929B1/fr active Active
• 2007
  • 2007-02-22 EP EP07726486A patent/EP1987311A1/de not_active Withdrawn
  • 2007-02-22 WO PCT/EP2007/051728 patent/WO2007096413A1/fr active Application Filing

Non-Patent Citations (1)

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