DE102006057031A1 - Fluid e.g. cooling agent, accommodation box for use in e.g. cooler, has openings provided in base for accommodation of tubes, and remodeled or folded shaped part including two side walls, front walls, cover and base - Google Patents

Abstract

The box (10) has two front walls (26, 28), a cover (18) and a base (20) arranged opposite to the cover. Openings are provided in the base for accommodation of tubes e.g. flat tubes. A remodeled or folded shaped part e.g. punched sheet metal, includes two side walls (22), the front walls, the cover and the base. One of the side walls has a bulge for accommodating a connecting piece (44). The openings are mounted in the base. Independent claims are also included for the following: (1) a method for producing a box for accommodating a fluid (2) a heat exchanger.

Description

The The invention relates to a box for holding a fluid for a Heat exchanger, a method for producing such a box and a Heat exchanger.

From the EP 1 139 054 B1 a box for receiving a fluid for a heat exchanger is known.

This known box has a bottom with receiving slots for connecting pipes or flat tubes on and arranged opposite this floor Cover. This cover is integral with the two end walls educated.

Of the Invention is the object of a cost and easy to create fluid box for a heat exchanger to create.

These Task is through a box for receiving a fluid for a Heat exchanger, through a method for producing such a box for receiving a fluid and by a heat exchanger solved with the features of the respective independent claim.

advantageous embodiments and further developments are the subject of the dependent claims. The objects of under claims refer both to the box according to the invention for receiving a Fluids for a heat exchanger, to the inventive method for the production of such a box as well as on the heat exchanger according to the invention.

In particular, according to the invention proposed a box for receiving a fluid, wherein the fluid preferably a coolant is why the box, without this being a limitation should, hereinafter also referred to as a coolant box becomes.

Of the Coolant tank, which preferably for a heat exchanger, especially for a heat exchanger of a motor vehicle, has two side walls, two End walls, a lid and a bottom.

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

According to the invention the coolant box from only one formed, in particular folded, molded part, wherein the formed part, in particular a stamped sheet, the two side walls, the two end walls, forming the lid and the bottom.

Especially Preferably, the formed, in particular folded, molded part is soldered, in particular solder-plated.

Also can be further preferred that in the coolant box the end walls spaced and preferably parallel to each other, in particular transverse to a longitudinal direction of the box or coolant box, are arranged. The same applies to the side walls, which then especially in the longitudinal direction of the coolant box are arranged. Also, the lid and the bottom are particular spaced apart from each other.

Especially the molding is a stamped sheet, which can be specified above or along Folding or bending or folding lines to the coolant box is foldable, the two side walls, the two end walls, the lid and the bottom are formed.

The Folding or bending or folding lines are preferred in transition areas arranged between each two of the above-mentioned walls.

Possibly The molding can be shaped before or after folding by other shaping Processes such as a drawing process, in particular a deep-drawing process, and / or hydroforming and / or compression molding.

Furthermore, preferably at least one of the side walls ( 22 . 24 respectively. 22a . 24a ) a bulge, in particular for receiving a nozzle, in particular a nozzle with a large diameter.

Here can be further preferred that the lid a corresponding Has bulge, essentially to the course of the side walls, in particular to the bulge adapted to accommodate the nozzle in the side walls.

Of the The floor is preferably arched educated.

One or more receiving openings for pipes may be provided in the floor, in particular for connecting pipes. The tubes can be designed, for example, as flat tubes and be part of a tube and fin block. It can also be provided that a separate opening in the bottom is provided for each separate tube. But it can also be a large opening for receiving all the tubes of the tube-fin block be provided.

Prefers can also be provided that one of the above, the Interior of the coolant box delimiting walls a, in particular laterally arranged and / or bendable, tab and / or installation.

The at least one tab and / or installation can be angled in this way be that they are arranged substantially parallel to a terminal wall is and / or connected to this, in particular by a solder joint, is.

Also can in the molding one, in particular several, substantially triangular, Recess in a transition area between each two walls be educated. This can be provided in particular for a processing of the one-piece Molded part, in particular a bending or folding or flaps, too simplify.

Further can be provided that a depression provided in the lid is, in which a partition extends, which is the interior of the coolant box divided into sub-chambers.

In preferred design, the lid is designed in cross-section U-shaped, so that two spaced apart flanges are formed, one above the other lying connection portion, a lid base are connected. This U-shape, for example, from vertical or approximately vertical Sections are formed. Even rounded designs are prefers.

Of the Lid can be arranged in the coolant box be so that the flanges the side walls of the coolant box from the outside or embrace from inside.

In particularly preferred design extending from the flanges the U-shape, which are also referred to as legs, tabs, the particularly preferably arcuate are shaped. These tabs preferably surround the side walls of the Coolant reservoir. It may preferably be provided that the lid is arranged in the coolant box is that the flanges in the bottom of the coolant tank facing away Projecting from the connecting portion and to the in In this direction, the ends connect the tabs, the then to the outside are bent over so that they surround the side walls of the coolant box from the outside. It is provided in particular that - in the longitudinal direction of the coolant box seen - several spaced such tabs are provided on the lid.

at the method according to the invention for producing a box for holding a fluid, such as a Coolant, for one Heat exchanger, in particular for the production of the coolant box according to the invention, is an interior of the box through walls, in particular by two side walls, two end walls, a lid and a lid opposite the bottom, limited.

at the production of the coolant box is in a first step, an integral part, in particular a stamped sheet, by a separation process, in particular by punching, made, with the one piece Part of the walls of the box enclosing the walls.

The one-piece Part becomes a substantially closed box in a second step reshaped, especially over or bent or folded along predetermined bending or folding lines.

Subsequently, will in a third step, the deformed, one-piece part for forming the coolant box, in particular by solder plating.

From particular advantage is when over a Front wall or over both end walls is folded.

Especially Preferably, it can also be provided that in the one-piece part, in particular in a region of the one-piece part, which in the Box forms the floor, one or more openings for receiving pipes, in particular connecting pipes, such as flat tubes, is introduced or be.

The one or more openings for receiving pipes may or may before the second step, especially after the first or at the same time as the first step, be introduced.

Further it is of particular preference when in the one or more openings one or more tubes, in particular connecting tubes, such as flat tubes, especially before the second step, be plugged.

Also can be provided further education that the one-piece part is processed by further shaping methods, in particular drawn, in particular deep-drawn, and / or hydroformed and / or mold pressing.

The heat exchanger, in particular a radiator for a motor vehicle, has a tube-rib block and a box according to the invention or Coolant box, wherein pipes of the tube-fin block in the region of the bottom of the box in these open.

in the Following are exemplary embodiments of the Invention explained with reference to the figures become. It shows:

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;

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

1c a side view of the heat exchanger according to 1 ;

2a a unit of a coolant box of the heat exchanger according to 1 having two side walls, two end walls and a bottom in plan view of one of the two side walls;

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

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

2d a partial sectional view taken along the line AA 2 B ;

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 1a to 3i given is;

3b the lid according to 3a in plan view;

3c the lid according to 3a three-dimensional oblique view from below;

3d a section along the line CC 3a ;

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

3f a section along the line EE 3b ;

3g a section along the line FF 3a ;

3h a section along the line GG 3a ;

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

4 a perspective view of a partially finished or fully folded one-piece unit 16 respectively. 16a the box according to the invention according to the 1a to 3i ;

5 a plan view of a stamped from a sheet metal base plate, which the in 4 illustrated, partially finished or fully folded one-piece unit 16 respectively. 16a the box according to the invention according to the 1a to 3i formed.

The 1a to 5 show an exemplary embodiment of a heat transfer according to the invention 1 with a box according to the invention produced by folding a one-piece part for receiving a fluid. This box for receiving a fluid is in particular a coolant medium box, so that is spoken in the following for simplicity of the coolant box.

The heat exchanger 1 has a first coolant box 10 and a second coolant box spaced therefrom 12 on, as well as a tube and rib block 14 that between these chiller boxes 10 . 12 is arranged.

The tube-rib 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 pipes of the pipe-rib block 14 each open with a first end in the first coolant box 10 and with its second end into the second coolant box 12 ,

The coolant boxes 10 . 12 are each formed from a one-piece, folded (sheet) part 16 respectively. 16a and thus each have only one substantially closed (box-shaped) unit 16 respectively. 16a on.

The unit 16 respectively. 16a has a lid 18 respectively. 18a and on the lid 18 respectively. 18a opposite side of a floor 20 respectively. 20a on. Further, the unit indicates 16 . 16a a first side wall 22 respectively. 22a , one of those first sidewalls 22 . 22a opposite second side wall 24 . 24a , one the interior of the coolant box 10 respectively. 12 in a first orientation of his (by the double arrow 30 indicated) longitudinal limiting first end wall 26 respectively. 26a as well as this interior of the first one 10 or second coolant box in the opposite orientation (this longitudinal direction 30 ) limiting second end wall 28 respectively. 28a on.

Also the lid 18 respectively. 18a , the side walls 22 . 24 respectively. 22a . 24a as well as the ground 20 respectively. 20a limit the interior of the coolant box 10 respectively. 12 ,

4 and 5 show like the lid 18 respectively. 18a , the floor 20 respectively. 20a , the side walls 22 . 24 respectively. 22a . 24a and the end walls 26 . 28 respectively. 26a . 28a at the one-piece part 16 respectively. 16a related and to the folded unit 16 . 16a or the coolant box 10 respectively. 12 are folded or become.

It should be noted that other basic designs with other compounds of cover 18 respectively. 18a , Ground 20 respectively. 20a , Side walls 22 . 24 respectively. 22a . 24a and end walls 26 . 28 respectively. 26a . 28a at the one-piece part 16 respectively. 16a - With other folds or with other Faltreihenfolgen - can be realized.

In the embodiment according to the 1a to 5 is what may be different, the heat exchanger 1 , which is also referred to as a cooler or can be designed functionally divided into two (part) Köhler or (part) heat exchanger. For this purpose, is in the longitudinal direction 30 seen at the same height in the two coolant boxes 10 . 12 , each transverse to this longitudinal direction 30 a partition 32 respectively. 34 intended. There may also be other, in the coolant boxes 10 . 12 at different heights in the longitudinal direction 30 arranged partition walls may be provided (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 is and the lower part cooler 38 Part of a low-temperature circuit is.

In the first coolant box 10 as well as in the second coolant box 12 each opens a main nozzle 40 respectively. 42 , using one of these main nozzles 40 . 42 Coolant in the upper part cooler 36 can flow in and being over the other of these nozzles 40 . 42 the coolant from the upper part cooler 36 can escape again.

Correspondingly, the lower part cooler 38 one in the first coolant box 10 opening nozzle 44 and one in the second coolant box 12 opening nozzle 46 on, also here by one of these nozzles 44 . 46 Coolant in the lower part cooler 38 can flow in and through the other of these nozzles 46 . 44 from this lower part cooler 38 can flow out.

In the area of the first coolant box 10 is also a drain plug 48 provided for draining coolant. Furthermore, in the region of the first coolant box 10 , here in the area of the upper end, a neck 50 provided for the filling with coolant and / or the vent.

1b shows a plan view of the design according to 1a from above.

1c shows a side view of the design according to 1a from the left.

The 2a to 2d show different views of the first coolant box 10 or the unit closed by folding 16 this first coolant box 10 , However, in the 2a to 2d the lid 18 of the coolant box 10 not shown what through with 19 designated cutting edges in the transition between the lid 18 and the front wall 26 or and the front wall 28 is clarified.

The 2a and 2c show a plan view of the side walls 22 respectively. 24 from the outside. 2 B shows a plan view of the ground 20 from the outside.

In 2a and 2c can be taken well that the ground 20 is formed wavy. In cross-section is the bottom 20 arched.

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

The 2a and 2c can - as well as the 1a - Also be taken good that the pipe-rib block 14 opposite 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 bulge is provided in particular, since the main nozzle 40 is dimensioned accordingly large.

The 2a and 2c can be seen that the partition 32 not up to the tube-rib block facing away from the end of the side walls 22 . 24 extends. Nevertheless, this partition divides 32 the interior 62 of the coolant box 10 in two sub-chambers 64 . 66 ,

This is made possible because of the 2a to 2d Not shown lid after folding so far in the unit 16 sticks out so he's on that partition 32 essentially rests.

2d shows a sectional view taken along the line AA 2 B in partial view.

In 2d It is easy to see that in the longitudinal direction 30 undulating and between the side walls 22 . 24 arched trained ground through its wave profile import slopes for the flat tubes of the tube-rib block 14 forms. 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 2d can be seen that the transition area 68 between the ground 20 and the front wall 26 respectively. 28 is integrally formed, as well as by the cutting edge 19 clarified, but not shown transition area 68 between the front wall 26 and the lid 18 ,

The 2c and 2d can also be taken well that the end walls 26 . 28 in their side walls 22 . 24 facing end portions each side tabs or lists 72 exhibit.

These tabs 72 stand in the longitudinal direction 30 or in the direction of the side walls 22 . 24 from the front wall 26 . 28 off and become, for example by means of Lotplattieren on the side walls 22 respectively. 24 soldered outside or inside.

Alternatively, it can also be provided that such tabs 72 on the side walls 22 and 24 are each provided at the appropriate place and these tabs are bent so that they extend in the direction of the end wall plane and on the corresponding end wall 26 . 28 - Are soldered in particular by means of solder plating.

The 3a to 3i show an exemplary lid 18 of the coolant box 10 , which along the cut edges 19 from the one-piece part 16 or between the end walls 26 and 28 is cut out.

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

3i shows an oblique plan view of the lid according to 3a in the region of ends of the legs arranged tabs.

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

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

This lid 18 is in the folding (see. 4 ) on the floor 20 opposite side of the unit 16 so in the unit 16 Inserted that connecting section 86 this floor is facing and the thighs 82 . 84 in Bodenabgewandter direction of the connecting portion 16 protrude.

From the thighs 82 . 84 of the U-shaped profile extend a plurality of tabs 88 ,

These tabs 88 are designed arcuate in the embodiment. The tabs 88 extend from the connection area 86 opposite ends of the legs 82 . 84 , in particular bent, to the outside. These tabs 88 But can also have a bent course instead of a curved course.

In the tabs 88 become end sections of the sidewalls 22 . 24 added. In the area of these tabs, the side walls 22 . 24 with the lid 18 be soldered, in particular by solder plating. The lid 18 is in particular soldered so that a tight connection is formed, in particular, the method of Lotplattierens can be used.

The tabs 88 are in the longitudinal direction 30 Seen spaced apart from each other, so that in this longitudinal direction 30 between adjacent tabs 88 strap-free areas on the thighs 82 . 84 be formed.

Due to the size of the opening 40 the lid has a bulge, which essentially follows the course of the side walls 22 . 24 is adjusted.

The lid also has a recess 94 on. This depression extends transversely or perpendicular to the longitudinal direction 30 almost through the entire lid 18 ,

The depression 94 , which here has a substantially rectangular cross-section, but may alternatively be provided with run-on slopes, or arched, serves to accommodate the partition 32 ,

The depression 94 facilitates in particular the soldering process by the partition 32 introduced there and then can be soldered. The soldering can be done in particular by means of solder plating.

The 4 and 5 show illustrations showing the folding of the one-piece part to the closed unit 16 respectively. 16a the coolant box according to the invention 10 respectively. 12 according to the 1a to 3i clarify.

4 shows a perspective view of a partially finished or fully folded one-piece unit 16 respectively. 16a , There are in particular the opposite, already folded, ie along the bending lines 22-1 and 24-1 upturned, side walls 22 and 24 shown, as well as the ground 20 that is arched here.

At the perspective further away lying longitudinal side of the floor 20-1 In one piece, the part already closes along the bending line 26-1 curved front wall 26 at. This is further integral with the lid 18 connected, this along the bend line 18-1 opposite the front wall 26 is folded. The further integral with the lid 18 connected end wall 28 is opposite this along the bend line 18-2 bent.

As 4 shows is in the lid 18 the bulge 18-3 which essentially follows the course of the side walls 22 . 24 is adjusted.

This one-piece unit 16 . 16a is like 5 shows shaped from a sheet, which is first punched (base plate, 16b ) and possibly deep-drawn. The base plate 16b which already have the preformed side panels 22 . 24 , the ground 20 , the end walls 26 . 28 and the lid 18 then becomes the closed unit 16 respectively. 16a along the bend lines 22-1 . 24-1 . 26-1 . 18-1 and 18-2 folded. The folded base plate 16b is subsequently soldered.

As an example, let us briefly mention the folding of the front wall 26 described. To the front wall 26 In the context of the manufacturing process, it is bent around the bending or bending edge 26-1 bent upwards, leaving them with their side flaps 112 . 114 at the front end of the already bent up side walls 22 . 24 striking or striking.

These tabs 112 . 114 are then also bent, in such a way that they are substantially parallel to the side walls 22 . 24 are arranged and thus form areas for a solder joint with the side walls.

As 5 good to see are in the areas 116 . 118 given triangular recesses, which allow a simplified bending.

Such tabs 112 . 114 are also on the front wall 28 intended.

In the base plate 16b before the fold in the area which at the box the floor 20 trains, one or more openings 60 for receiving pipes, in particular connecting pipes, such as flat pipes introduced. The openings 60 for holding the pipes can also be used when punching the base plate 16 be introduced at the above-mentioned point.

In front the folding of the base plate, this can also by further shaping Procedures are processed, especially drawn, in particular deep drawn, and / or hydroformed and / or molded.

Of the Heat exchanger, in particular a cooler for a Motor vehicle, comprising a tube-rib block and a erfindungemäßen box or coolant box on, with tubes of the tube-rib block in the area of the bottom of the In these boxes.

The box is preferred 10 . 12 of metal, in particular of aluminum.

It should also be noted that instead of a stamped and subsequently bent base plate 16b also the use of box profiles for the production of coolant boxes 10 respectively. 12 is possible.

Claims (17)

Box for containing a fluid, such as coolant, for a heat exchanger ( 1 ), in particular for motor vehicles, with two side walls ( 22 . 24 respectively. 22a . 24a ), two end walls ( 26 . 28 respectively. 26a . 28a ), a lid ( 18 respectively. 18a ) and a lid ( 18 respectively. 18a ) oppositely disposed floor ( 20 respectively. 20a ), in which one or more openings ( 60 ) for receiving pipes, in particular connecting pipes, such as flat pipes, are provided, characterized in that the box consists of only one formed, in particular folded, molded part, wherein the formed part, in particular a stamped sheet, the two side walls ( 22 . 24 respectively. 22a . 24a ), the two Stirnwän the ( 26 . 28 respectively. 26a . 28a ), the lid ( 18 respectively. 18a ) and the ground ( 20 respectively. 20a ) trains. Box according to one of the preceding claims, characterized in that at least one of the side walls ( 22 . 24 respectively. 22a . 24a ) has a bulge, in particular for receiving a neck. Box according to one of the preceding claims, characterized in that the lid ( 18 respectively. 18a ) has a bulge which substantially to the course of the side walls ( 22 . 24 respectively. 22a . 24a ), in particular to a bulge in the side walls ( 22 . 24 respectively. 22a . 24a ), is adjusted. Box according to one of the preceding claims, characterized in that in the ground ( 20 respectively. 20a ) one or more openings ( 60 ) for receiving pipes, in particular connecting pipes, such as flat pipes, are introduced. Box according to one of the preceding claims, characterized in that the molded part has bending / folding or folding lines has, especially in transition areas between each two walls, over which the walls are foldable. Box according to one of the preceding claims, characterized in that the formed, in particular folded, molded part soldered, especially soldered, is. Box according to one of the preceding claims, characterized in that at least one of the end walls ( 26 . 28 respectively. 26a . 28a ) has at least one, in particular laterally arranged and / or bendable, tab and / or installation. Box according to one of the preceding claims, characterized in that the at least one tab and / or installation is angled in such a way that it is substantially parallel to one of the side walls ( 22 . 24 respectively. 22a . 24a ) are arranged, and / or with one of the side walls ( 22 . 24 respectively. 22a . 24a ), in particular connected by a solder joint, is. Box according to one of the preceding claims, characterized in that in the molded part at least one, in particular two, in particular substantially triangular, recess in a transition region between two walls, in particular between the bottom ( 20 respectively. 20a ) and one of the end walls ( 26 . 28 respectively. 26a . 28a ), is trained. Heat exchanger, in particular radiator for a motor vehicle, with a tube and fin block ( 14 ) and a box ( 10 respectively. 12 ) according to one of the preceding claims, wherein the tubes of the tube-fin block ( 14 ) in the area of the soil ( 20 respectively. 20a ) of the box ( 10 respectively. 12 ) in these. Method for producing a box for holding a fluid, such as coolant, for a heat exchanger ( 1 ), in particular for producing a box according to one of claims 1 to 9, characterized in that - in a first step, an integral part, in particular a sheet, by a separation process, in particular by punching, is produced, wherein the one-piece part an interior of the Box bounding walls, in particular two side walls ( 22 . 24 respectively. 22a . 24a ), two end walls ( 26 . 28 respectively. 26a . 28a ), a lid ( 18 respectively. 18a ) and a lid ( 18 respectively. 18a ) opposite ground ( 20 respectively. 20a ), in a second step, the one-piece part is formed into a substantially closed box, in particular bent or folded along predetermined bending or folding lines, and - in a third step, the deformed one-piece part is solder-plated, the box being formed becomes. Method according to the preceding method claim, characterized in that in the forming over an end wall or folded over both end walls ( 26 . 28 respectively. 26a . 28a ) becomes. Method according to the preceding method claim, characterized in that the one-piece part before or after the Folding by other shaping methods, such as a drawing process, in particular special a deep-drawing process, and / or a hydroforming and / or a compression molding, is processed. Method according to the preceding method claim, characterized in that in the one-piece part, in particular in a region of the one-piece part, which at the box the ground ( 20 respectively. 20a ), one or more openings ( 60 ) for receiving pipes, in particular connecting pipes, such as flat pipes, are introduced. Method according to at least one of the preceding method claims, characterized in that the one or more openings ( 60 ) are introduced for receiving tubes before the second step, in particular after the first or simultaneously with the first step. Method according to at least one of the preceding method claims, characterized gekenn draws that into the one or more openings ( 60 ) one or more tubes, in particular connecting tubes, such as flat tubes, are inserted. Method according to at least one of the preceding Method claims, characterized in that the one or more tubes before the second step be plugged in.