EP1771697B1 - Heat exchanger, box for receiving a fluid for a heat exchanger, and method for the production of such a box - Google Patents

Description

The invention relates to a heat exchanger, a box for receiving a fluid for a heat exchanger according to the preamble of claims 1 or 18 and to methods for producing such a box. Such a box is z. B. off EP 0 958 953 known.

From the EP 1 139 054 B1 a box for receiving fluid for a heat exchanger is known. This known box has a bottom with receiving slots for connecting pipes or flat tubes and a lid arranged opposite this floor. This cover is formed integrally with the two end walls.

The invention has for its object to provide a cost-effective and easy to manufacture fluid box for a heat exchanger.

According to the invention, a box for receiving a fluid according to claim 1 or according to claim 18 is proposed in particular. An inventive heat exchanger is the subject of claim 30. A method for producing a fluid box for a heat exchanger is the subject of claim 31. Preferred developments are subject of the dependent claims.

According to the invention, in particular a box for receiving a fluid according to claim 1 is proposed. This fluid is preferably coolant, which is why the box, without this being a limitation, is also referred to as a coolant box. This coolant box is preferably intended for a heat exchanger, such as a heat exchanger of a motor vehicle. The coolant box has two side walls, two end walls, a lid and a bottom. It is particularly provided that the side walls are spaced and preferably arranged parallel to each other. The same applies to the end walls. Also, the lid and the bottom are in particular spaced from each other. The floor has one or more receiving openings for pipes. These are in particular connecting pipes. The tubes can be designed, for example, as flat tubes and be part of a tube and fin block.

It can be provided that a separate opening in the bottom is provided for each separate tube. But it can also be provided a large opening for receiving all the tubes of the tube-fin block.

In particular, it is provided that the mentioned end walls, the addressed side walls, the bottom and the lid define the interior of the coolant box.

In the lid, at least one recess is provided into which a wall extends. This wall preferably extends with its ends in this recess. The wall is particularly aligned transversely to the side walls. The wall is in a particularly preferred embodiment, an end wall of the coolant box. It is particularly preferred that several such depressions are provided. It can be provided, for example, which is particularly preferred that such a depression is provided in the lid for each of the two end walls. The recess (s) of the lid, which serve to receive a respective wall, are in particular formed break-through-free.

Furthermore, it can be provided that, alternatively or additionally, a recess is provided in the cover into which a partition wall extends, which subdivides the interior of the coolant box into sub-chambers. In the following, the recess is referred to for simplification, wherein it should be noted that in a preferred embodiment a plurality of recesses are provided, in particular one or more recesses for the end walls of the coolant box.

The recess is preferably formed in the manner of a bead or as a bead. The wall, so in particular end wall or partition wall, preferably extends into the recess, that the wall - as seen in the longitudinal direction of the coolant box - is supported in at least one, but more preferably in both orientations of the recess. A recess is formed in particular as a return. But it can also be provided that a recess is formed so that two spaced-apart projections are provided, between which then the recess is formed, in particular with respect to these projections.

The lid recess for receiving a wall can also be designed as a groove or groove-shaped.

In a particularly preferred embodiment, the depression has one or more run-on slopes. In particular, it can be provided that the boundaries of the depression situated in the longitudinal direction of the coolant box converge towards one another in the depth direction of this depression. The cross-section of this depression, which is formed in particular by the abovementioned boundaries or by means of these boundaries, may for example be elliptical-section-shaped or semicircular or triangular or polygonal or rectangular or square, whereby the shapes of this depression should not be restricted. So there are also other forms of depression preferred However, it should be noted that in a particularly preferred design run-up slopes are given.

Such a depression may for example be rounded, in particular in cross section. The recess may extend, for example, over the entire width of the lid or substantially over the entire width of the lid. It is also preferable that it extends substantially over the entire width, that - seen in the longitudinal direction of the recess - remain wall sections or webs, however, laterally. It can be provided, for example, that the lid has tabs or sections which engage around the end walls. The lid preferably has a substantially U-shaped cross-section as seen transversely to the longitudinal direction. The longitudinal direction is in particular the direction which extends from the one end wall of the coolant box to the other end wall of the coolant box.

In a preferred embodiment, the lid is U-shaped in cross-section, so that two spaced flanges are formed, which are connected via an intermediate connecting portion. This U-shape can be formed for example from vertical or approximately vertical sections. Rounded designs are also preferred. In a particularly preferred embodiment extend from the flanges of the U-shape, which are also referred to as legs, tabs, which are particularly preferably arcuately shaped. These tabs preferably surround the side walls of the coolant box. It can preferably be provided that the lid is inserted into the part of the coolant box, that the flanges protrude in the direction away from the bottom of the coolant tank direction of the connecting portion and connect at the ends located in this direction the tabs, which then to the outside are bent over so that they surround the side walls of the coolant box from the outside. It is particularly provided that - in the longitudinal direction seen the coolant box - a plurality of spaced such tabs are provided on the lid.

In a particularly preferred embodiment, the lid is integrally formed and made of a one-piece part, in particular sheet metal. The lid is particularly made separately from the side walls, the end walls and the floor.

These side walls, these end walls and this bottom are preferably also - as a unit - integrally formed and made of a one-piece part, in particular one-piece sheet metal.

The transition from the bottom to the end walls is preferably formed in one piece, and particularly preferably free of connecting means, such as solder joints or the like. The end walls are particularly preferably bent from the ground.

The floor is preferably curved.

According to the invention, in particular, a box for receiving a fluid, such as coolant, according to claim 18 is proposed. This box is intended for a heat exchanger or may be part of a heat exchanger. The box is intended especially for motor vehicles or for heat exchangers of motor vehicles. The box has a lid, and arranged on the opposite side of the lid of this box floor. In this bottom one or more openings for receiving pipes is provided. These tubes are in particular connecting or flat tubes. These tubes can, for example, fluidically connect the box with another box of the same heat exchanger or open into deflection sections. The box also has a plurality of walls which are in the Essentially arranged transversely to this cover and across this floor. These walls can be arranged, for example, perpendicular to this cover and / or perpendicular to this floor.

A first wall of these walls, which are arranged substantially transversely to this cover and / or to the floor, has at least one recess into which a third wall extends or engages, in particular with an edge region of this third wall.

Furthermore, a second wall of these walls, which are arranged substantially transversely to this cover and / or to the bottom, has at least one depression into which the third wall likewise extends or also engages, in particular with an edge region of this third Wall.

In an advantageous embodiment, the third wall extends substantially transversely to the first wall and substantially transversely to the second wall. For example, the third wall may be arranged perpendicular to the first wall and perpendicular to the second wall.

It is provided in particular that the first wall is positioned at a distance from the second wall. For example, the first wall is spaced and positioned parallel to the second wall.

The third wall is in an advantageous development of a wall of the walls, which are arranged substantially transversely or perpendicular to this cover and / or to the bottom,

It is provided in particular that the third wall with one of two opposite ends of this third wall extends into or engages in a recess of the first wall and extends or engages with the opposite end region into the recess of the second wall.

It is provided according to a particularly preferred embodiment, that the third wall is trapped in the recess of the first and the second wall, in particular in each case with respect to a transverse or perpendicular to the third wall level. It may be provided that this "capture" of the third wall in the recesses of the first and second walls is effected by allowing these recesses to co-operate with the floor in a substantially transverse or perpendicular to the third wall Level are substantially closed circumferentially. This may for example be such that on the floor facing side of the respective recess of the first and the second wall of this bottom forms a stop for the third wall, and that in the direction of the cover and transverse or perpendicular to the third wall in both orientations the boundary wall portions of the recesses form stops for the third wall.

In an advantageous embodiment, it is provided that the recess of the first wall and / or the recess of the second wall is formed as a groove or embossed bead. In a preferred embodiment, the addressed first wall and the addressed second wall are each the side walls, namely opposite side walls, of the box.

It can also be provided that the first wall and the second wall are respective end walls, namely opposite end walls, of the box.

In an advantageous embodiment, the third wall is a partition, by means of which the interior of the box is divided into sub-chambers.

Furthermore, it can be provided that the first wall is a side wall or end wall of the box, and the second wall is a partition of the box, with which the interior of the box is divided into different chambers. According to an advantageous embodiment it is provided that of the walls, which are arranged substantially transversely to the lid of the box and transversely to the bottom of the box, a wall is a fourth wall, a wall is a fifth wall and a wall is a sixth wall , In this advantageous development, provision is made in particular for this sixth wall to be arranged transversely, preferably perpendicular, to the fourth wall and transversely to the fifth wall. In this case, it is provided in particular that the fourth wall and this fifth wall each have at least one depression and the sixth wall extends into this depression of the fourth wall and into this depression of the fifth wall or engages in the respective recesses.

It is provided in particular that the first wall, the second wall and the third wall are different walls. In a corresponding manner, it is provided in particular that the fourth wall, the fifth wall and the sixth wall are different walls.

It can further be provided that none of the first, the second and the third wall is identical to one of the fourth, the fifth and the sixth wall.

Alternatively, however, it is also preferable that the fourth wall is the third wall. This may for example be such that the first wall and the second wall are side walls of the box, and the third wall is a partition wall of this box, by means of which the box is divided into different chambers. It can then be provided that the fifth wall is an end wall of the box and the sixth extends into the recess of the fourth wall identical to the third wall and is a partition, by means of which the interior of the box is divided into different chambers.

In a corresponding manner it can be provided that the first and the second wall is in each case an end wall of the box, the third wall is a partition of the box, with which the interior of the box in different sub-chambers is divided, and the fifth wall is a side wall of the box, wherein the sixth wall is a partition, by means of which the box is divided into different sub-chambers, and wherein the third wall is identical to the fourth wall.

In an advantageous embodiment, the first wall, the second wall and the third wall or the fourth wall, the fifth wall and the sixth wall in each case relatively narrow, circumferential edges and transverse thereto, relatively large surfaces of its surface. The mentioned depressions, which are provided in the first wall and the second wall and the fourth wall and the fifth wall, are preferably provided in the large surface portions, which are located transversely to the peripheral edge.

In a particularly preferred embodiment, it is provided that the first wall and the second wall of the box are each integrally connected to the bottom of the box. This may in particular be such that the first wall and the second wall and the bottom of a part - such as sheet metal - are made. This may, for example, be such that the sheet is deep drawn to form this first and second wall and to form this bottom, and is produced in a bending process.

In an advantageous development of the invention, the third wall has two opposite side edges or side edge sections or narrow sides, which extend essentially transversely to the cover and transversely, preferably substantially vertically, to the bottom of the box, and of which one in particular completely - extends into the recess of the first wall, and of which the other extends - in particular completely - in the recess of the second wall.

But it can also be provided that two mutually opposite side edges or side edge sections or narrow sides of the third wall respectively Form projections, wherein the projection which is formed at the one of these two opposite side edges or narrow sides, extends into the recess of the first wall, and wherein the projection, in the other of these two opposite side edges or side edge portions or narrow sides of the third wall is formed, extends into the recess of the second wall. It can be provided that the two mentioned opposite side edges or side edge portions or narrow sides of the third wall additionally form sections that do not extend into the recess of the first and second wall.

In a corresponding manner it can be provided that the sixth wall forms on two opposite side edges or narrow side projections which extend into the recess of the fourth and fifth wall, said opposite side edges or side edge portions or narrow sides of the sixth wall Have sections that do not extend into the mentioned wells.

With regard to the third wall as well, however, it can be provided that the one of two opposite side edges or narrow sides-in particular completely-extends into a recess of the fourth wall and the other of these two opposite side edges or narrow sides of the sixth wall forms. in particular completely - extends into a recess of the fifth wall.

In an advantageous embodiment, it is provided that the bottom of the box has at least one recess, wherein the third wall extends into this recess of the floor. It can be provided, for example, that this depression, which is provided in the bottom, is formed as a groove or embossed bead.

In a particularly preferred embodiment, the recess which is provided for receiving the third wall in the first wall and / or the recess which is provided for receiving the third wall in the second wall and / or the recess extending for the Recording the third wall is provided in the bottom, essentially linear.

In a particularly preferable embodiment, it is provided that the lid of the box has a recess and the third wall extends into this recess of the box. It can further be provided that the cover further comprises a recess in which the first wall extends, and a recess into which the second wall extends. If the mentioned fourth, fifth and sixth walls are provided, it may further be provided that the cover for receiving these walls likewise has corresponding recesses. The mentioned recesses, which may be provided in the cover for receiving the mentioned walls, may for example be configured in each case as a bead or as an impressed groove.

In such a design, for example, be provided that the first wall and the second wall are each side walls of the box. In combination, it may further be provided that the two opposite end walls also extend in each case a recess of the lid.

However, it can also be provided that the first wall and the second wall are each an end wall of the box. In such a configuration, it may further be provided that the opposite side walls each extend into a recess of the lid.

The mentioned recesses of the lid can each be in particular grooves or beads or the like.

In a particularly preferable embodiment, it is provided that the circumferential edge or the narrow sides of the third wall extend circumferentially substantially completely in recesses. This may in particular be such that depressions are respectively provided in the first wall, the second wall, the bottom and the lid, which are so circumferentially closed in cooperation, wherein the third wall extends circumferentially substantially completely in this recess arrangement.

It can be provided that the recess of the first wall and the second wall, which are respectively provided for receiving the third wall, are located in a plane. This may in particular be a plane that is located transversely, preferably perpendicular, to the direction of extension - in particular the direction of longitudinal extent - of the floor.

If also the bottom and / or the lid each have recesses for receiving the third wall, it can be provided that the recesses are provided in the first wall, in the second wall, and in the bottom and / or cover for receiving the third wall , located in one level.

It can be provided that the recesses which are provided in the first wall, in the second wall and in the bottom and / or in the lid for receiving the third wall, are formed integrally.

In a preferred embodiment, it is provided that the recess or bead, which is provided in the first wall for receiving the third wall, is spaced from the lid facing the end of this first wall. Further, it is preferably provided that the recess or bead, which is provided in the second wall for receiving the third wall, is spaced from the lid facing the end of this second wall. For example, it may be provided that addressed depressions or beads-as mentioned-are spaced from the end of the first or second wall facing the lid are and extending from their closest to this end point continuously substantially to the bottom end facing the first and second wall. It is furthermore preferred that the recesses or beads addressed in the region of the base merge into a recess or bead provided in the bottom, so that the recesses or beads of the first wall, the bottom and the second wall cooperate in a (FIG. in cross-section) form a substantially U-shaped recess or bead. It is particularly preferred that further provided in the lid a recess or bead for receiving the third wall. This is preferably such that the recess or bead of the lid, the recess or bead of the first wall, the recess or bead of the bottom and the recess or bead of the second wall form a circumferentially closed recess or bead in cooperation, in which extend circumferentially - preferably completely closed - the edge regions of the third wall or in which they are received.

But it can also be provided that the recesses or beads, which are provided in the first wall and the second wall for receiving the third wall, extending to the respective end facing the lid of the respective wall and in a local end portion substantially stepped or possibly also formed with bevels. This can be such that on the third wall on opposite sides in each case projections - preferably two projections - are attached, so that these projections can be guided over this stepped recess or bead. It can be provided that a shoulder is provided so that the respective upper projection of the third wall at the end of the insertion is pivoted in the recess or bead so that the third wall or partition is oriented substantially perpendicular to the longitudinal direction of the box , Optionally, it can on the interaction of the projections with the mentioned stepped depressions or beads, in particular stepped sections of the bead, are clamped.

In an advantageous embodiment, however, it is provided that the third wall engages in the recess of the first and the second wall each in the manner of a snap connection. This can be such that the first and the second wall and the bottom are integrally formed, the first and second wall, which can be referred to as bottom flanks, in particular also in such a configuration, opened or bent to the third wall in the The third wall and the first and second walls then snap back and thus catch the third wall in said recesses or beads.

It is further preferred that the third wall forms a snap connection in cooperation with the depressions or beads of the first and the second wall, and that the third wall is held on the first and the second wall by means of additional connecting means, such as welded connection or soldered connection.

In a particularly preferred embodiment, it is provided that the third wall has a tab which extends through a through opening in one of the box outwardly bounding walls or the lid of this box to the outside, and thus indicating that a third wall or Partition was already installed.

According to the invention, a heat exchanger according to claim 30 is further proposed, which is in particular a radiator for a motor vehicle.

Furthermore, the invention proposes in particular a method according to claim 31.

Fig. 1a

einen beispielhaften erfindungsgemäßen Wärmetauscher, der als Kühler ausgebildet ist, mit einem beispielhaften erfindungsgemäßen Kasten zur Aufnahme eines Fluids, der hier ein Kühlmittelkasten ist;

Fig. 1b

den Wärmetauscher gemäß Fig. 1 in einer Ansicht von oben;

Fig. 1c

eine Seitenansicht des Wärmetauschers gemäß Fig. 1;

Fig. 2a

eine Einheit eines Kühlmittelkastens des Wärmetauschers gemäß Fig. 1, die zwei Seitenwände, zwei Stirnwände und einen Boden aufweist in Draufsicht auf eine der beiden Seitenwände;

Fig. 2b

die Einheit gemäß Fig. 2a in Draufsicht auf den Boden;

Fig. 2c

die Einheit gemäß Fig. 2a in Draufsicht auf die andere der beiden Seitenwände;

Fig. 2d

eine teilweise Schnittansicht entlang der Linie A-A aus Fig. 2b;

Fig. 2e

eine (Schnitt)Ansicht der Gestaltung gemäß Fig. 2a von rechts;

Fig. 2f

eine Schnittansicht entlang der Linie B-B aus Fig. 2b;

Fig. 3a

eine beispielhafte Gestaltung eines Deckels eines erfindungsgemäßen Kastens in Seitenansicht, wobei diese Gestaltung des Deckels insbesondere bei der Gestaltung gemäß Fig. 1a bis 3k gegeben ist;

Fig. 3b

den Deckel gemäß Fig. 3a in Draufsicht;

Fig. 3c

den Deckel gemäß Fig. 3a in dreidimensionaler Schrägansicht von unten;

Fig. 3d

einen Schnitt entlang der Linie C-C aus Fig. 3a;

Fig. 3e

einen Schnitt entlang der Linie D-D aus Fig. 3b in teilweiser Ansicht;

Fig. 3f

einen Schnitt entlang der Linie E-E aus Fig. 3b;

Fig. 3g

einen Schnitt entlang der Linie F-F aus Fig. 3a;

Fig. 3h

einen Schnitt entlang der Linie G-G aus Fig. 3a;

Fig. 3i

eine Schrägansicht auf einen mit Laschen versehenen Abschnitt des Deckels gemäß Fig. 3a von oben;

Fig. 3k

einen vergrößerten Ausschnitt aus Fig. 3a;

Fig. 4

einen Ausschnitt eines beispielhaften erfindungsgemäßen Kastens, wobei die Gestaltung gemäß Fig. 4 auch in der Gestaltung gemäß den Fig. 1a bis 3k gegeben sein kann;

Fig. 5

eine Draufsicht auf die Gestaltung gemäß Fig. 4;

Fig. 6

einen Ausschnitt eines beispielhaften erfindungsgemäßen Kastens, wobei die Gestaltung gemäß Fig. 6 auch in der Gestaltung gemäß den Fig. 1a bis 3k gegeben sein kann und / oder mit einer Gestaltung gemäß den Fig. 4 und 5 kombiniert sein kann; und

Fig. 7

einen Ausschnitt eines beispielhaften erfindungsgemäßen Kastens, wobei die Gestaltung gemäß Fig. 7 auch in der Gestaltung gemäß den Fig. 1a bis 3k gegeben sein kann und / oder mit einer Gestaltung gemäß den Fig. 4 und 5 kombiniert sein kann.

Fig. 8a

einen beispielhaften erfindungsgemäßen Kasten zur Aufnahme eines Fluids für einen Wärmetauscher, wobei bei dem Kasten der Deckel entfernt ist, in schematischer Explosionsansicht bzw. mit der Trennwand vor der Montage;

Fig. 8b

die Gestaltung gemäß Fig. 8a mit eingerasteter Trennwand;

Fig. 8c

einen Bodenschnitt bzw. einen Schnitt durch den Boden und die Seitenwände der Gestaltung gemäß Fig. 8b;

Fig. 8d

einen Bodenschnitt bzw. einen Schnitt durch den Boden und die Seitenwände der Gestaltung gemäß Fig. 8b in dem Bereich, in dem die Sicke für die Aufnahme der Trennwand vorgesehen ist;

Fig. 9a

die Trennwand aus der Gestaltung gemäß Fig. 8a bzw. Fig. 8b;

Fig. 9b

eine Seitenansicht der Trennwand aus Fig. 9a;

Fig. 10a

eine Frontalansicht des in Fig. 8a bzw. Fig. 8b entfernten Deckels des Kastens 2;

Fig. 10b

eine dreidimensionale Schrägansicht des Deckels gemäß Fig. 10a;

Fig. 10c

einen Schnitt entlang der Linie Xc-Xc aus Fig 10a in um 90° verschwenkter Ansicht;

Fig. 10d

einen Schnitt entlang der Linie Xd-Xd aus Fig 10a in um 90° verschwenkter Ansicht;

Fig. 10e

einen Schnitt entlang der Linie Xe-Xe aus Fig 10a in um 90° verschwenkter Ansicht;

Fig. 10f

einen Schnitt entlang der Linie Xf-Xf aus Fig 10a;

Fig. 10g

einen Schnitt entlang der Linie Xg-Xg aus Fig 10a;

Fig. 10h

eine Schrägansicht auf einen mit Laschen versehenen Abschnitt des Deckels gemäß Fig. 10a von oben; und

Fig. 11

einen Schnitt durch den Kasten gemäß Fig. 8b, bei dem der Deckel gemäß den Fig. 10a bis 10h vorgesehen ist, im Bereich der Trennwand.

In the following, embodiments of the invention will be explained with reference to the figures. It shows:

Fig. 1a

an exemplary heat exchanger according to the invention, which is designed as a cooler, with an exemplary box according to the invention for receiving a fluid, which is here a coolant box;

Fig. 1b

the heat exchanger according to Fig. 1 in a view from above;

Fig. 1c

a side view of the heat exchanger according to Fig. 1 ;

Fig. 2a

a unit of a coolant box of the heat exchanger according to Fig. 1 having two side walls, two end walls and a bottom in plan view of one of the two side walls;

Fig. 2b

the unit according to Fig. 2a in plan view of the ground;

Fig. 2c

the unit according to Fig. 2a in plan view of the other of the two side walls;

Fig. 2d

a partial sectional view taken along the line AA Fig. 2b ;

Fig. 2e

a (sectional) view of the design according to Fig. 2a from the right;

Fig. 2f

a sectional view taken along the line BB Fig. 2b ;

Fig. 3a

an exemplary design of a lid of a box according to the invention in side view, said design of the lid in particular in the design according to Fig. 1a to 3k given is;

Fig. 3b

the lid according to Fig. 3a in plan view;

Fig. 3c

the lid according to Fig. 3a in a three-dimensional oblique view from below;

Fig. 3d

a section along the line CC Fig. 3a ;

Fig. 3e

a section along the line DD Fig. 3b in partial view;

Fig. 3f

a section along the line EE Fig. 3b ;

Fig. 3g

a section along the line FF Fig. 3a ;

Fig. 3h

a section along the line GG Fig. 3a ;

Fig. 3i

an oblique view of a tabbed portion of the lid according to Fig. 3a from above;

Fig. 3k

an enlarged section Fig. 3a ;

Fig. 4

a section of an exemplary box according to the invention, the design according to Fig. 4 also in the design according to the Fig. 1a to 3k can be given;

Fig. 5

a plan view of the design according to Fig. 4 ;

Fig. 6

a section of an exemplary box according to the invention, the design according to Fig. 6 also in the design according to the Fig. 1a to 3k can be given and / or with a design according to the 4 and 5 can be combined; and

Fig. 7

a section of an exemplary box according to the invention, the design according to Fig. 7 also in the design according to the Fig. 1a to 3k can be given and / or with a design according to the 4 and 5 can be combined.

Fig. 8a

an exemplary box according to the invention for receiving a fluid for a heat exchanger, wherein the lid is removed in the box, in a schematic exploded view or with the partition prior to assembly;

Fig. 8b

the design according to Fig. 8a with latched partition;

Fig. 8c

a bottom section or a section through the bottom and the side walls of the design according to Fig. 8b ;

Fig. 8d

a bottom section or a section through the bottom and the side walls of the design according to Fig. 8b in the area in which the bead is provided for receiving the partition wall;

Fig. 9a

the partition from the design according to Fig. 8a respectively. Fig. 8b ;

Fig. 9b

a side view of the partition off Fig. 9a ;

Fig. 10a

a frontal view of the in Fig. 8a respectively. Fig. 8b removed box 2 lid;

Fig. 10b

a three-dimensional oblique view of the lid according to Fig. 10a ;

Fig. 10c

a section along the line Xc-Xc Fig. 10a in rotated by 90 ° view;

Fig. 10d

a section along the line Xd-Xd Fig. 10a in rotated by 90 ° view;

Fig. 10e

a section along the line Xe-Xe Fig. 10a in rotated by 90 ° view;

Fig. 10f

a section along the line Xf-Xf Fig. 10a ;

Fig. 10g

a section along the line Xg-Xg Fig. 10a ;

Fig. 10h

an oblique view of a tabbed portion of the lid according to Fig. 10a from above; and

Fig. 11

a section through the box according to Fig. 8b in which the lid according to the 10a to 10h is provided in the area of the partition wall.

The 1a to 3k show an exemplary embodiment of a heat transfer 1 according to the invention with a box according to the invention for receiving a fluid. This box for receiving a fluid is in particular a coolant box, so that in the following for simplicity is spoken by the coolant box.

The heat exchanger 1 has a first coolant box 10 and a second coolant box 12 spaced therefrom, as well as a tube-and-fin block 14, which is arranged between these coolant box 10, 12.

The tube-fin block 14 has a plurality of parallel aligned connecting tubes, which are designed in this example as flat tubes, on. Between these connecting tubes are - formed transversely to their longitudinal direction - tube spaces in which ribs are arranged in a known manner, in such a way that the tube-fin block is transverse to the plane formed by the tube assembly of air flowed through.

The connecting tubes of the tube-fin block 14 each open at a first end into the first coolant box 10 and at its second end into the second coolant box 12.

The coolant boxes 10, 12 each have a first unit 16 or 16a, and a lid 18 or 18a.

The first unit 16 or 16a has on the lid 18 and 18a opposite side on a bottom 20 and 20a. Further, the first unit 16, 16a, a first side wall 22 and 22a, one of these first side wall 22, 22a opposite second side wall 24, 24a, a the interior of the coolant box 10 and 12 in a first orientation of his (indicated by the double arrow 30) ) Longitudinally delimiting first end wall 26 or 26a and a said inner space of the first 10 and second coolant box in the opposite orientation (this longitudinal direction 30) limiting the second end wall 28 and 28a. The side walls 22, 24 and 22a, 24a and the bottom 20 and 20a define the interior of the coolant box 10 and 12, respectively.

Further, the interior of the coolant box 10 and 12 is limited by the lid 18 and 18 a.

In the embodiment according to the Fig. 1a to 3k is, which may be otherwise, the heat exchanger 1, which is also referred to as a cooler or can be designed functionally divided into two (part) cooler or (part) heat exchanger. For this purpose, seen in the longitudinal direction 30 at the same height in the two coolant boxes 10, 12, each transverse to this longitudinal direction 30, a partition wall 32 and 34 are provided. It can also be provided in the coolant boxes 10, 12 at different heights in the longitudinal direction 30 partitions arranged (which are not shown in the figures), which cause a serpentine deflection of the coolant.

It can be provided, for example, that the upper part cooler in 1a Part of a high-temperature cooling circuit and the lower part of cooler 38 is part of a low-temperature circuit.

In the first coolant box 10 and in the second coolant box 12 respectively opens a main nozzle 40 and 42, via one of these main nozzle 40, 42 coolant can flow into the upper part of cooler 36 and wherein the other of these nozzles 40, 42, the coolant from the upper part cooler 36 can flow out again.

In a corresponding manner, the lower part of the cooler 38 has a opening into the first coolant box 10 spigot 44 and an opening into the second coolant box 12 spigot 46, also here by one of these stub 44, 46 coolant can flow into the lower part of the cooler 38 and through the other of these nozzles 46, 44 can flow out of this lower part cooler 38.

In the region of the first coolant box 10, a drain screw 48 is further provided for discharging coolant. Further, in the region of the first coolant box 10, here in the region of the upper end, a nozzle 50 for the filling with coolant and / or the vent is provided.

Fig. 1b shows a plan view of the design according to Fig. 1 a from above. Fig. 1 c shows a side view of the design according to FIG Fig. 1a from the left.

The Fig. 2a to 2f show different views of the first coolant box 10 and the first unit 16 of this first coolant box 10th

The Fig. 2a and 2c show a plan view of the side walls 22 and 24 from the outside. Fig. 2b shows a plan view of the bottom 20 from the outside.

In Fig. 2a and 2c can be well seen that the bottom 20 is wave-shaped.

Fig. 2b clearly shows that slot-shaped openings for receiving the flat tubes of the tube-fin block 14 are provided in the bottom.

The Fig. 2a and 2c can - as well as the Fig. 1a - Be well taken that the tube-rib block 14 facing away from the end of the side walls 22, 24 is substantially substantially straight, and in the region in which the main nozzle is arranged, has a bulge. This bulging is provided in particular, since the main nozzle 40 is dimensioned here correspondingly large.

The Fig. 2a and 2c can be seen that the partition 32 does not extend to the tube-rib block facing away from the end of the side walls 22, 24. Nevertheless, this partition wall 32 divides the interior 62 of the coolant box 10 into two sub-chambers 64, 66. This is made possible because the in the Fig. 2a to 2f cover not shown so far inserted into the first unit 16, so that it bears against this partition wall 32 substantially.

Fig. 2d shows a sectional view taken along the line AA Fig. 2b in partial view. Fig. 2e shows a side view and a corresponding sectional view of the design according to Fig. 2a from the right. Fig. 2f shows a sectional view taken along the line BB Fig. 2b , There is good to see that the bottom 20 is curved.

In Fig. 2d It can easily be seen that the bottom which is of a corrugated design in the longitudinal direction 30 and curved between the side walls 22, 24 forms guide slopes for the flat tubes of the tube / fin block 14 by its wave profile. The slots 60 are arranged substantially in the region of the lower points of the wave profile - seen from the outside. The wave structure also achieves a certain stiffening effect in the region of the bottom.

In Fig. 2d It can be seen that the transition region 68 between the bottom 20 and the end wall 26 and 28 is integrally formed. The dashed region 70 schematically indicates that the end walls 26, 28 are folded up or bent up during production. The end walls 26, 28 can be bent, for example, against a stop or against an end face, in particular end face of the side walls 22, 24.

The Fig. 2c and Fig. 2d can also be well taken that the end walls 26, 28 in their side walls 22, 24 facing end portions each have lateral tabs or lists 72. These tabs 72 are in the longitudinal direction 30 and in the direction of the side walls 22, 24 of the end wall 26 and 28 and are soldered, for example by means of Lotplattieren on the side walls 22 and 24 outside or inside. Alternatively, it can also be provided that such tabs 72 are respectively provided on the side walls 22 and 24 at the appropriate location and these tabs are bent so that they extend in the direction of the end wall plane and soldered to the corresponding end wall - in particular by means of Lotplattieren.

The Fig. 3a to 3k show an exemplary cover of the coolant box 10.

It shows the Fig. 3a a side view of the lid 18, Fig. 3b a top view of the lid 18, Fig. 3c a three-dimensional view of the lid 18 from below, Fig. 3d a sectional view taken along the line CC Fig. 3a . Fig. 3e a partial sectional view taken along the line DD Fig. 3b . Fig. 3f a sectional view taken along the line EE Fig. 3b . Fig. 3g a sectional view taken along the line FF Fig. 3a and Fig. 3h a sectional view taken along the line GG Fig. 3a ,

Fig. 3i shows an oblique plan view of the lid according to Fig. 3a in the region of ends of the legs arranged tabs. Fig. 3k shows an enlarged section in the area 80 Fig. 3a ,

The lid 18 has seen in the longitudinal direction 30 has a substantially U-shaped cross section, which fits well in the Fig. 3c . 3d, 3f, 3g, 3h and 3i can be seen.

This U-shape is formed approximately at right angles and is formed by two spaced legs 82, 84, which may also be referred to as flanges, and a connecting portion 86 connecting these two legs.

This cover 18 is inserted on the side facing away from the bottom 20 of the first unit 16 so that the connecting portion 86 faces this floor and the legs 82, 84 protrude in the bottom-facing direction of the connecting portion 16.

Of the legs 82, 84 of the U-shaped profile extend a plurality of tabs 88th

These tabs 88 are designed arcuate in the embodiment. The tabs 88 extend from the ends of the legs 82, 84 facing away from the connection region 86, in particular bent outward. But these tabs 88 may also have a bent course instead of a curved course. In the tabs 88 end portions of the side walls 22, 24 are received. In the region of these tabs, the side walls 22, 24 can be soldered to the lid, in particular by solder plating. In particular, the lid is soldered to the first unit in such a way that a tight connection is produced, wherein in particular the method of solder plating can be used.

The tabs 88 are arranged spaced apart as seen in the longitudinal direction 30, so that in this longitudinal direction 30, tab-free regions are formed on the legs 82, 84 between adjacent tabs 88.

The tabs 88 continue on the legs 82, 84 in such a way that the lid can be made of a metal sheet.

Due to the size of the opening 40, the lid has a bulge, which is adapted to the shape of the side walls 22, 24 substantially. The lid also has recesses 90, 92, 94. These depressions extend transversely or perpendicular to the longitudinal direction 30 approximately through the entire lid.

The depressions 90, 92 serve to receive the end walls 26, 28. These depressions 90, 92 have chamfers which favor the insertion of the end walls and / or allow centering. The depressions 90, 92 support the end walls 26, 28 in the longitudinal direction 30, in particular on both sides or in both orientations.

The recess 94, which here has a substantially rectangular cross-section, but may alternatively be provided with run-on slopes, or curved, serves to receive the partition 32. The recesses 90, 92, 94 facilitate in particular the soldering process by the corresponding end walls or partitions can be introduced there and then can be soldered. This embodiment may be suitable for a complete soldering, that is, the entire heat exchanger is soldered in one operation, the soldering is simplified, for example, by a Lotplattierung some or all parts.

As Fig. 3k can be taken well, the recesses 90, 92 run in this embodiment, a tab-like portion 96 which engages around the end wall 26 and 28 from the outside. This tab-like portion 96 is formed so that it initially applies substantially to the corresponding end wall 26 and 28 and then projects the free end obliquely from this end wall, so that a gap between the free end and the corresponding end wall is given, the the soldering favors.

The recesses 90, 92 and 94, which are in particular beads or beads with insertion bevels, can serve in particular the fixation and / or the play compensation of the end walls.

The 4, 5, 6 and 7 show some exemplary detail of an exemplary coolant box according to the invention 10 and 12, respectively, wherein it should be noted that the designs according to the Fig. 4 to 7 also in the embodiment according to Fig. 1a to 3k can be given.

Fig. 4 shows a side view of a partially completed first unit 16. There, in particular, the opposite side walls 22 and 24 are shown, as well as the bottom 20, which is formed here arched. This one-piece unit 16 is formed from a sheet which was first punched and in which the side walls 22, 24 were bent. Prior to bending the sidewalls or bending the sidewalls, the bottom 20 has been formed in a forming process, such as deep drawing, although other forming methods such as hydroforming or simply drawing, embossing and / or bending may be used. As a result, a closed section 110 of an end wall has formed. In the region of the bending edge 112, a section which serves to form the end wall 26 protrudes from the image plane in this production state. This is good too Fig. 5 to recognize, which is a top view of the design according to Fig. 4 shows. The end wall 26 shown there does not yet have its fully assembled position.

In order to bring the end wall 26 in its position, it is in the context of the manufacturing process to the bending or bending edge 112 - Fig. 5 upwards - bent so that it strikes with its side flaps 112, 114 at the front end of the side walls 22, 24. These tabs 112, 114 are then also bent, in such a way that they are arranged substantially parallel to the end walls 22, 24 and thus areas for a solder joint with the Form the front wall. As Fig. 5 can be seen well, are given in the areas 116, 118 triangular recesses, which are for example punched and allow for certain applications, a simplified bending.

The 6 and 7 show exemplary configurations of the recesses 92, wherein the recess 92 and bead 92 in the design according to Fig. 6 is formed approximately rectangular and in the design according to Fig. 7 is formed substantially approximately semicircular. There are run-on slopes - especially in the design according to Fig. 7 - Given these wells, which may also be part of the depression and facilitate the insertion of the end wall 26. These recesses or beads 92 may be formed symmetrically, for example, in particular, may be provided that the end wall 26 in its fully inserted position - in the 6 and 7 not yet shown - with respect to this recess 92 are substantially centered. In the 6 and 7 also the tabs 112 are shown.

In the 6 and 7 is also easy to see how the tabs 96 engage the end wall 26 embracing in the region of their free ends

Preferably, the box 10, 12 made of metal, in particular aluminum.

The 8a to 11th show a further embodiment of a box 130 according to the invention for receiving a fluid. Also, the box 130 may be, for example, a coolant box of a heat exchanger; The box 130 is therefore referred to below as the coolant box 130.

It can be provided that the coolant box 130 is part of a heat exchanger or heat exchanger according to the invention - which may be, for example, a radiator for a motor vehicle - is. For example, it can be provided that in the design according to the Fig. 1a to 1c the local first coolant box 10 and / or the local second coolant box 12 according to the design a coolant box 130 according to the 8a to 11th is modified, in particular with regard to the design and the reception or the receiving areas of the partition or the partitions.

In particular, it may also be provided that the method described below with reference to 8a to 11th explained, exemplary coolant box 130 in the design according to the Fig. 1a to 1c is given instead of the local coolant box 12. Especially against this background, in the following description of the basis of the 8a to 11th Coolant box 130 used reference numerals, which were also used in the description of the coolant box 12. Unless in the description of the basis 8a to 11th For example, in the description of the coolant box 10, reference numerals that were not used for corresponding parts, regions, or the like in the description of the coolant box 12, but in the description of the coolant box 10 will be described in the description of 8a to 11th attached to the corresponding, referring to the coolant box 10 reference numerals a letter "a".

The coolant box 130 has a bottom 20a, as well as a first side wall 22a, a second side wall 24a, a first end wall 26a, a second end wall 28a, and a lid 18a. Furthermore, the coolant box 130 has a partition 34, by means of which the interior 62a of the coolant box 130 is subdivided into partial chambers or into two partial chambers 64a, 66a.

The Fig. 8a and 8b show this coolant box 130, wherein the lid 18a is removed or not shown in these two views. In the illustration according to Fig. 8a the partition wall 34 is not mounted or exploded in relation to the remaining part of the design shown there; the partition wall is shown there before assembly. Fig. 8b shows the mentioned design without cover 18a with mounted or latched partition 34th

The lid 18 a is disposed opposite the bottom 20 a, which is in the Fig. 8a and 8b not visible, but for example in Fig. 11 , In the bottom 20a a plurality of openings 60a are provided for receiving flat tubes. These openings 60a are designed as slot-shaped passage openings and aligned with their longitudinal extension directions parallel to each other. The mentioned flat tubes, which are in particular flat tubes of a tube and fin block, can be inserted into the openings 60a; A flow connection between the coolant box 130 and a further coolant box can be established via these flat tubes.

The coolant box 130 has a main opening 132 for the entry or exit of fluid or cooling medium, as well as a further opening 134 for the entry or exit of fluid or cooling medium. The openings 132, 134 may be part of the same coolant circuit or fluidly connected within the heat exchanger or be part of various coolant circuits or non-fluidly connected within the heat exchanger.

To the main opening 132 can - which in the Fig. 8a and 8b is not shown - a main socket to be molded and the other opening 134 may - this is also not shown - also be formed a nozzle.

The first side wall 22a, the second side wall 24a, the first end wall 26a, the second end wall 28a and the partition wall 34 are respectively aligned substantially perpendicular to the cover 18a and perpendicular to the bottom 20a.

It can be provided that the first side wall 22a is arranged parallel to and transversely to its direction of extension at a distance from the second side wall 24a.

The bottom 20a is convexly curved. This is in particular such that in a cross-section viewed transversely to the longitudinal direction of the coolant box, the bottom 20a has a substantially constant radius, the corresponding arc extending over less than 180 °; but this can also be different; For example, the bottom 20a may be straight or have a different curvature.

A first wall 136 of the walls 22a, 24a, 26a, 28a, 34 arranged essentially transversely or perpendicular to the cover 18a and / or transversely or perpendicular to the floor 20a has a recess 138, into which a third wall 140 - in particular with an edge portion - extends or engages.

A second wall 142 of the walls extending substantially transverse to the lid 18a and / or transverse to the floor 20a has a recess 144 into which the third wall 140 extends.

The third wall 140 is arranged transversely, preferably perpendicular, to the first wall 22a and transversely - preferably perpendicularly - to the second wall 24a.

In the exemplary embodiment, the third wall 140 is the dividing wall 34, the first wall 136, the first side wall 22a and the second wall 142, the second side wall 24a.

It is further provided that in the bottom 20a, a recess 146 is provided, in which also the third wall 140 - in particular with an edge region - extends.

The recess 138 provided in the first wall 136 merges with the depression 146 provided in the bottom 20a; the recess 146 provided in the bottom 20a merges with the recess 144 provided in the second wall 142.

This is good in the Fig. 8d can be seen, which shows a section through the side walls 22a, 24a and the bottom 20a in the region of the partition 34, wherein the partition wall 34 is not shown there.

Fig. 8c shows a corresponding section at a location which is in the longitudinal direction 30a of the box 130 as seen from the partition 34 spaced.

The previously mentioned recesses 138, 144, 146 are formed in the embodiment as a bead. This bead 138, 144, 146 or these beads 138, 144, 146 are embossed in the side walls 22a, 24a and in the bottom 20a. The recesses or beads 138, 144, 146 are open to the interior 62 a of the coolant box 130.

As in Fig. 8a , especially good though Fig. 8d , it can be seen, the recess or bead 146 introduced into the bottom 20a for receiving the partition wall 34 extends substantially over the entire width of the bottom on its side facing the interior 62a.

The depressions or beads 138 and 144 introduced into the side walls 22a and 24a each extend from the end 20a facing the end 156 or 158 of the respective side wall 22a or 24a - each substantially uninterrupted - in the direction away from the bottom up to a point 148 or 150, which is spaced from the end facing away from the bottom 20a 152 and 154 of the respective side wall 22a and 24a.

In the partition wall area so a circumferential recess or bead is embossed to the distance "a" from the edge above. This depression or bead has a depth "t". The depth "t" of the bead is in Fig. 8d as well as the distance "a" from the upper edge.

Fig. 8d illustrates that the side walls 22a, 24a and the bottom 20a are integrally formed. These side walls 22a; 24a and the bottom 20a may for example be made in one piece or formed from a one-piece sheet metal. It can also be provided that the end walls 26a, 28a are also made in one piece with the bottom 20a and the side walls 22a, 24a, in particular from a one-piece sheet metal. But it can also be provided that the end walls 26a, 28a are separate parts which are integrally formed.

Fig. 9a shows a plan view of the partition 34, which here is the third wall 140. The Fig. 9b shows a side view of in Fig. 9a shown wall 34 and 140th

The partition wall 34 may be made, for example, as a stamped part. The partition wall 34 is wider than the floor or wider than the distance of the bottom flanks, which are referred to here as side walls 22a, 24a. This is in particular such that the inner spacing of the side walls 22a, 24a is less than the width of the bottom, in particular outside of the recesses or beads 138, 144. For example, it can be provided that the partition wall by about 0.5 mm wider as the floor or as the distance of the side walls 22a, 24a. Instead of the specified about 0.5 mm but may for example also be given a width difference, for example, is between 0.1 mm and 3 mm. But other differences in width can be provided.

When inserting the partition in the recess or bead 138, 146, 144, the bottom flanks or the side walls 22a, 24a are opened or bent easily. As soon as the dividing wall 34 is-preferably completely-in the depression or bead 138, 146, 144, the bottom flanks or the side walls 22a, 24a snap back to and fro again.

This is in particular such that the dividing wall 34 then from the depressions or beads 138, 146, 144 and from the side walls 22a, 24a and the bottom 20a is caught. This can be achieved, for example, that the partition 34 is held. This can be helpful, for example, if the partition wall (subsequently) is to be soldered to the side walls 22a, 24a and the bottom 20a. In this case, if necessary, expensive holding devices for holding the partition at the desired position during soldering can be dispensed with. Such soldering of the partition wall 34 with the side walls 22a, 24a and the bottom 20a is preferably provided. For example, this soldering can be done by solder plating or in a soldering oven. It can also be provided that all parts of the box or the heat exchanger to be soldered in a process - in particular of the aforementioned type - are soldered.

The width of the recess or bead 138, 146, 144 may be substantially adapted to the thickness of the partition, so that the partition or the position of the partition in the axial direction of the coolant box 130 is substantially fixed. It can also be given a certain game. The partition wall 34 is, however, in particular also caught in such a way that it can not fall out transversely to the direction of longitudinal extent 30a of the coolant box 130.

Especially Fig. 9a it can be seen that the partition wall 34 has a partition wall tab 160. This partition wall tab 160 is here provided on the side facing away from the bottom 20 a of the partition 34.

The partition wall tab 160 serves or only to ensure or indicate the presence of the partition wall 34 after assembly.

For this purpose, the lid 18a has an opening 162 through which the addressed tab 160 extends outwardly. From the outside can therefore be recognized by the presence of the tab 160 that the partition 34 is mounted.

Fig. 10a shows a plan view of the lid 18 a and Fig. 10b shows a three-dimensional oblique view from above of the lid 18 a. Fig. 10c shows a sectional view along the line Xc-Xc Fig. 10a , Fig. 10d shows a sectional view along the line Xd-Xd Fig. 10a , Fig. 10e shows a sectional view along the line Xe-Xe Fig. 10a , Fig. 10f shows a sectional view along the line Xf-Xf Fig. 10a , Fig. 10g shows a sectional view along the line Xg-Xg Fig. 10a , Fig. 10h shows an oblique view of a tabbed portion of the lid 18a according to Fig. 10a from above.

The in the FIGS. 10a to 10h Cover 18a shown is substantially designed as the lid 18a of the embodiment according to the FIGS. 1 a to 7.

From the lid 18 according to the aforementioned embodiment, based on the Fig. 3a to 3k has been explained above, the lid 18a differs according to the FIGS. 10a to 10h essentially in that the bulge, which is substantially adapted to the course of the side walls and is provided due to the opening 40 or 132, is provided at a longitudinally offset position and the tabs 88 and 88a according to their length and arrangement accordingly are varied, and through the opening 162 for the partition plate 160. Therefore, in view of the design of the lid 18 a according to the 10a to 10h to the description of the lid 18 to the FIGS. 3a to 3k directed.

In particular, it is thus provided that the cover 18a recesses or beads 90a, 92a, in which the end walls 26a, 28a extend. Furthermore, provision is made in particular for the cover 18a to have a recess or bead 94a into which the third wall 140 or the partition wall 34 extends or into which this wall engages.

Advantageously, the lid 18a is sunk between the side walls 22a, 24a received such that the recess or bead 94a of the lid 20a on the one hand, the recess or bead 138 of the first 22a side wall connects or immediately connects, and on the other hand, the recess or Bead 144 of the second side wall or.

It is thus in particular of the recesses or beads 94a, 138, 146 144 in cooperation formed a circumferentially closed recess or bead, in which circumferentially closed, the edge regions of the partition 34 and the third wall 140 extend or be received.

From above, the dividing wall 34 is surrounded by the lid 18a, which also has a corresponding recess or bead 146 in this area, as already mentioned. After soldering, the small assembly gaps between the parts are completely sealed.

In the description of the figures in the Fig. 3a to 3k shown cover 18 has been carried out that provided for receiving the partition bead has a substantially rectangular cross-section. The cross-sectional shape can also be designed differently, such as semicircular, part-circular, elliptical or otherwise.

As indicated, the lid 18a from above on in the Fig. 8b up shown or used.

It should be noted that the dimensions or manufacturing instructions shown in the figures, and in particular the Fig. 9a and 9b and 10c to 10g, indicate particularly preferred designs. Consequently, the designs shown there can also be designed with deviating dimensions or be manufactured in a deviating manner, as it is indicated there.

Claims (31)

1. A box for receiving a fluid, such as coolant, for a heat exchanger (1), in particular for motor vehicles, with two side walls (22, 24 and 22a, 24a), two end walls (26, 28 and 26a, 28a), a cover (18 and 18a) and a base (20 and 20a) arranged opposite the cover (18 and 18a) in which one or more openings (60) are provided for receiving tubes, in particular connecting tubes, such as flat tubes, wherein the cover (18 and 18a) has at least one recess (90, 92, 94) into which at least one wall (26, 26a, 28, 28a, 32) extends, characterised in that the at least one recess (90, 92, 94) of the cover (18 and 18a) in which a wall (26, 26a, 28, 28a, 32), in particular an end wall (26, 28 and 26a, 28a), is received extends essentially over the whole width of the cover (18 and 18a).
2. The box as claimed in claim 1, characterised in that at least one wall received in a recess (90, 92, 94) of the cover (18 and 18a) is an end wall (26, 28 and 26a, 28a) of the box (10 and 12).
3. The box as claimed in one of the preceding claims, characterised in that at least one wall received in a recess of the cover (18 and 18a) is a partition wall (32 and 34) that divides the inside of the box (10 and 12) into chambers.
4. The box as claimed in one of the preceding claims, characterised in that the cover (18 and 18a) has at least one first recess in which a first end wall (26 and 26a) is received and at least one second recess (92) different from the at least one first recess (90) in which a second end wall (28 and 28a) distant from the first end wall (26 and 26a) is received.
5. The box as claimed in one of the preceding claims, characterised in that the at least one recess (90, 92, 94) of the cover (18 and 18a) is formed like a bead.
6. The box as claimed in one of the preceding claims, characterised in that the at least one recess (90, 92, 94) of the cover (18 and 18a) supports the wall (26, 26a, 28, 28a, 32) received in this recess (90, 92, 94) in longitudinal direction (30) of the box (1) or in the direction of the side walls (22, 24 and 22a, 24a), and in particular in both orientations of this direction.
7. The box as claimed in one of the preceding claims, characterised in that the limits of the at least one recess (90, 92, 94) of the cover (18 and 18a) lying in the longitudinal direction (30) of the box (1) or in the direction of the side walls (22, 24 and 22a, 24a) run towards one another as seen in the depth direction of this recess (90, 92, 94).
8. The box as claimed in one of the preceding claims, characterised in that the limits of the at least one recess (90, 92, 94) of the cover (18 and 18a) lying in longitudinal direction (30) or in the direction of the side walls (22, 24 and 22a, 24a) have a centering effect for the wall (26, 26a, 28, 28a, 32) received.
9. The box as claimed in one of the preceding claims, characterised in that the at least one recess (90, 92, 94) of the cover (18 and 18a) as seen transversely to the wall (26, 26a, 28, 28a, 32) received in said recess has a rounded form at least in sections, and is in particular essentially semicircular.
10. The box as claimed in one of the preceding claims, characterised in that the cover (18 and 18a) engages around the end walls (26, 28 and 26a, 28a), and in particular by means of a tapering section (96) of recesses (90, 92, 94).
11. The box as claimed in one of the preceding claims, characterised in that the cover (18 and 18a) has an essentially U-shaped cross-section as seen transversely to its longitudinal direction (30).
12. The box as claimed in claim 11, characterised in that the flanks of the U-shape extend away from the section (86) connecting these flanks (82, 84) of the U-shape in the direction facing away from the base (20 and 20a) of the box (10 and 12).
13. The box as claimed in one of the preceding claims, characterised in that the cover (18 and 18a) has in particular arch-shaped tabs (88) that engage around the side walls (22, 24 and 22a, 24a), wherein it is in particular provided that the cover (18 and 18a) is U-shaped in the cross-section and these tabs (88) extend from the ends of the flanges (82, 84) of the U-shape facing away from the connecting section (86).
14. The box as claimed in one of the preceding claims, characterised in that the cover (18 and 18a) is a part manufactured separately from the side walls (22, 24 and 22a, 24a) and from the end walls (26, 28 and 26a, 28a) and from the base (20 and 20a).
15. The box as claimed in one of the preceding claims, characterised in that the cover (18 and 18a) is formed in one piece and is made from a one-piece, in particular punched, part, in particular a metal plate.
16. The box as claimed in one of the preceding claims, characterised in that the transition from the base (20 and 20a) to the end walls (26, 28 and 26a, 28a) is formed in one piece.
17. The box as claimed in one of the preceding claims, characterised in that the unit of the side walls (22, 24 and 22a, 24a) and the end walls (26, 28 and 26a, 28a) and the base (20 and 20a) is formed in one piece, and in particular is produced from a one-piece part, in particular a metal plate.
18. A box for receiving a fluid, such as coolant, for a heat exchanger (1), in particular for motor vehicles, with a cover (18a) and a base (20a) arranged opposite the cover (18a) in which one or more openings (60) are provided for receiving tubes, and with a plurality of walls (22a, 24a, 26a, 28a, 34) that extend essentially transversely to this cover (18a) or transversely to this base (20a), in particular as claimed in one of the preceding claims, wherein a first wall (136 and 22a) of these walls (22a, 24a, 26a, 28a, 34) that extend essentially transversely to this cover (18a) or transversely to this base (20a) has at least one recess (138) into which a third wall (140 and 34) of the box (130) for receiving fluid extends or engages, and that a second wall (142 and 24a) of these walls (22a, 24a, 26a, 28a, 34) that extend essentially transversely to this cover (18a) or transversely to this base (20a) has at least one recess (144) into which the third wall (140 and 34) extends or engages, characterised in that the at least one recess (90, 92, 94) of the cover (18 and 18a) in which a wall (26, 26a, 28, 28a, 32), in particular an end wall (26, 28 and 26a, 28a), is received extends essentially over the whole width of the cover (18 and 18a).
19. The box as claimed in claim 18, characterised in that this first wall (136 and 22a) and this second wall (142 and 24a) are each a side wall (22a and 24a) of the box (130).
20. The box as claimed in one of claims 18 to 19, characterised in that the first wall (136 and 22a) and the second wall (142 and 24a) are each joined in one piece with the base (20a).
21. The box as claimed in one of claims 18 to 20, characterised in that the third wall (140 and 34) is a partition wall (34) by means of which the inside (62a) of the box (130) is divided into sub-chambers (64a, 66a).
22. The box as claimed in one of claims 18 to 21, characterised in that the base (20a) of the box (130) has at least one recess (146), and that this third wall (140 and 34) extends into this recess (146) of this base (20a), wherein it is in particular provided that the recess (146) of this base (20a) is formed as a groove or as an embossed bead.
23. The box as claimed in claim 22, characterised in that the recesses (138, 144, 146) provided in the first wall (136 and 22a) and the second wall (142 and 24a) and in the base (20a) are formed together.
24. The box as claimed in one of claims 18 to 23, characterised in that the recess (138) provided in the first wall (136 and 22a) is located at a distance from the end (152) of this first wall (136 and 22a) facing towards the cover (18a), and that the recess (144) provided in the second wall (142 and 24a) is located at a distance from the end (154) of this second wall (142 and 24a) facing towards the cover (18a).
25. The box as claimed in one of claims 18 to 24, characterised in that the cover (18a) has at least one recess (94a), in particular bead or embossed groove, into which the third wall (140 and 34) extends.
26. The box as claimed in one of claims 18 to 25, characterised in that the continuous edge of the third wall (140 and 34) essentially extends completely into recesses on all sides, and in particular into recesses (138, 144, 146, 94a) provided in the first wall (136 and 22a), the second wall (142 and 24a), the base (20a) and the cover (18a).
27. The box as claimed in one of claims 18 to 26, characterised in that the third wall (140 and 34) engages the recesses (138, 144) of the first (136 and 22a) and the second wall (142 and 24a) like a snap connection.
28. The box as claimed in one of claims 18 to 27, characterised in that the third wall (140 and 34) forms a snap connection in conjunction with the recesses (138, 144) of the first (136 and 22a) and the second wall (142 and 24a), and that the third wall (140 and 34) is held against the first wall (136 and 22a) and the second wall (142 and 24a) by means of additional connection means, such as a welded joint or soldered joint.
29. The box as claimed in one of claims 18 to 28, characterised in that the third wall (140 and 34) has a tab (160) that extends outwards through an opening (160) in one of the walls or the cover (18a) forming the outer limit of the box (130).
30. A heat exchanger, in particular radiator for a motor vehicle, with a tube-and-fin block (14) and a box (10 and 12) as claimed in one of the preceding claims, wherein the tubes of the tube-and-fin block (14) in the area of the base (20 and 20a) of the box (10 and 12) terminate therein.
31. A method for production of a box for receiving a fluid, such as coolant, for a heat exchanger (1), in particular for production of a box as claimed in one of claims 1 to 29, characterised in that the walls limiting the inside of the box, in particular the two side walls (22, 24 and 22a, 24a), two end walls (26, 28 and 26a, 28a), a cover (18 and 18a) and a base (20 and 20a) arranged opposite the cover (18 and 18a), are each made of two one-piece parts, in particular metal plates, wherein these plates are punched in a first step, bent in a second step and joined together by soldering in a third step, and wherein before, during or after the first step and before or during the second step and before the third step one of these two parts having a section to form a base to receive connecting tubes is deep drawn.

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