DE102008027842A1 - Collector box for heat exchangers used in vehicles has connecting section with welding surface on opposite side to connection and is produced by extrusion - Google Patents

Abstract

The collector box (5) for heat exchangers used in vehicles has a connecting section (15) with a welding surface (66) on the opposite side to the connection. It is produced by extrusion. An independent claim is included for heat exchangers incorporating the collector box.

Description

The Invention relates to a collecting box of a heat exchanger, in particular for a motor vehicle, with a connection area, having at least one connection surface, and with a terminal region having at least one opening. The invention further relates to a heat exchanger, in particular for a motor vehicle, with a heat transfer block, having tubes running between two floors, flows through by a fluid and another fluid to be flowed around.

From the German patent application DE 199 02 507 A1 is a heat exchanger, in particular a charge air cooler, known with coolant flowed through slices, which are aligned parallel to one another and provided with an arranged on an end plate inlet and outlet nozzle package and border with their walls at interstices, which flows through the charge air and with Corrugated ribs are filled. The package formed by the discs is inserted into a charge air perfused housing, which is a mold cap made of plastic or of a metal casting.

task The invention is a collection box according to the The preamble of claim 1 and / or a heat exchanger according to the preamble of claim 15, the or the simple and inexpensive can be produced.

The The task is with a collecting box of a heat exchanger, in particular for a motor vehicle, with a connection area, having at least one connection surface, and with a connection area that has at least one opening, solved by the fact that the collection box as extrusions is executed. In extrusion molding is to a forming process in which a blank by a shaping Tool, which is also referred to as a die pressed through becomes. The blank will flow due to high pressure brought. The execution as extruded part delivers among other things the advantage that the interface, preferably designed as a soldering surface is, can be increased.

One preferred embodiment of the collecting tank is characterized in that reinforcing ribs originate from the connecting region, which are integrally connected to the collection box. The Reinforcing ribs are preferably on the outside attached to the collecting box.

One Another preferred embodiment of the collecting tank is characterized in that the reinforcing ribs starting from the interface. Preferably, the arranged in the connection region ends of the ribs part of Interface.

One Another preferred embodiment of the collecting tank is characterized in that the connecting surface extends continuously between the reinforcing ribs. Preferably, the extension of the connection surface from inside to outside of the reinforcing ribs limited.

One Another preferred embodiment of the collecting tank is characterized in that the bonding surface, referring to the collecting box, from the inside to the outside same dimensions as an associated collection box wall having the reinforcing ribs. The interface is preferably arranged perpendicular to the collection box wall.

One Another preferred embodiment of the collecting tank is characterized in that the reinforcing ribs perpendicular to the connection surface. This will simplifies production by extrusion.

One Another preferred embodiment of the collecting tank is characterized in that at least one management and / or fastener integrally connected to the collection box is. The guiding and / or fastening element is preferably connected according to the tongue and groove principle with a support structure of the motor vehicle. As a result, the assembly of a equipped with the collection box Heat exchanger simplified.

One Another preferred embodiment of the collecting tank is characterized in that the leadership and / or Fastener is designed so that there is a balance of tolerances and / or thermal expansions. The guiding and / or fastening element preferably comprises a fixing pin that extends in the direction of tolerances and / or Thermal expansions extends. The fixing pin is preferably taken in a blind hole, on one side allows attachment of the associated collection box, on the other hand, however, a compensation of tolerances and / or Thermal expansion allows.

Another preferred embodiment of the collecting tank is characterized in that the guiding and / or fastening element has at least one blind hole. The blind hole can at the collection box or be mounted on a fastening element of the collecting tank or on a support structure. Similarly, the associated attachment pin can be provided either on the support structure or on the collection box.

One Another preferred embodiment of the collecting tank is characterized in that at least one connecting piece is integrally connected to the collection box. The connecting piece allows the entry or exit of a medium in or from the collection box.

One Another preferred embodiment of the collecting tank is characterized in that at least one fastening pin is integrally connected to the collection box. The fixing pin allows a simple way a connector between the collecting box and a supporting structure of the motor vehicle. Preferably, the support structure is provided with a recess, in which the fastening pin is inserted.

One Another preferred embodiment of the collecting tank Is characterized in that the fastening pin of a Bearing surface goes out. The support surface extends preferably perpendicular to the attachment pin and forms a stop during assembly of the collecting tank to the support structure. Preferably, between the support surface and the support structure Rubber elements arranged as a buffer.

One Another preferred embodiment of the collecting tank is characterized in that at least one locking element in one piece connected to the collection box. The locking element acts with a Rastausnehmung together, on the support structure of the motor vehicle is provided.

One Another preferred embodiment of the collecting tank is characterized in that at least one snap connection element is integrally connected to the collection box. The snap connection element is formed for example by a snap hook, which is in a complementary trained recess engages, which formed on the support structure is.

One Another preferred embodiment of the collecting tank is characterized in that at least one retaining element in one piece connected to the collection box. This will be the attachment a heat exchanger equipped with the collecting box, For example, on a motor vehicle, simplified.

One Another preferred embodiment of the collecting tank is characterized in that the retaining element of a rib emanates. This adds stability and strength of the collecting tank increased.

One Another preferred embodiment of the collecting tank is characterized in that the holding element in a rib is integrated. As a result, the production of the collecting tank through Simplified extrusion.

One Another preferred embodiment of the collecting tank is characterized in that the holding element perpendicular to the Connecting surface is arranged. This will make the production the collecting box simplified by extrusion.

One Another preferred embodiment of the collecting tank is characterized in that the holding element is a recess which faces away from the connecting surface at its Side is open. The recess serves to perform Fasteners, with the help of the collecting box, for example on a support structure of a motor vehicle, can be fastened. By the open design of the recess, for example in shape an open at one end slot, the production of the Collection box facilitated by extrusion.

One Another preferred embodiment of the collecting tank is characterized in that the retaining element at least one Has blind hole. The blind hole is preferably in the flow direction arranged. In the blind hole is used to attach the header box a preferably self-tapping screw turned. alternative the blind hole can be threaded. Alternatively or In addition, at least one rubber part or a plastic part be arranged in the blind hole, the compensation of thermal expansion and / or Tolerances allows.

One Another preferred embodiment of the collecting tank is characterized in that the collecting box at least one tie rod has, the two opposite side walls of the header connects and through the opening accessible in the connection area. The tie rod is integral with the two side walls of the collecting tank connected and serves to increase the strength and rigidity of the header tank to increase. By the arrangement of the tie rod in the area the opening is the manufacture of the collecting tank through Simplified extrusion.

Another preferred embodiment of the header tank is characterized in that the tie rod perpendicular to the connec is arranged. According to one aspect of the invention, it is important to arrange the tie rod fluidly inside the header tank. The tie rod serves as a flow straightener. According to a further aspect, the tie rod can also serve as a dividing wall in order to selectively flow through different zones in the heat exchanger with a medium.

One Another preferred embodiment of the collecting tank is characterized in that the connecting surface has at least one particular circumferential paragraph. Preferably the connection surface has a step in cross-section. The surrounding heel or step becomes the interface increased. In addition, a form-fitting Connection between the collection box and another part of the Heat exchanger allows. This can the positioning before soldering can be simplified. The Execution as extrusion has opposite a drawn part has the advantage that a larger soldering surface can be provided. In addition, in the extruded section a higher material thickness can be used to produce a desired To achieve strength, or with a smaller material thickness, For example, by stiffening beads, a higher strength be achieved as a deep-drawn part. Through the integration the tie rod can be omitted an additional assembly step. Compared to a plastic collection box has the execution as extruded part, inter alia, the advantage that the Strength and stability significantly increased can be. Compared to a version as Cast or as a die-cast part has the execution as Extruded part among other things the advantage that the surface of the collecting tank does not have to be cleaned or processed. Furthermore become in the execution as extruded part longer tool life allows. When casting, the tool must after about 150,000 parts to be renewed.

at a heat exchanger, in particular for a motor vehicle, with a heat transfer block, having tubes running between two floors, flows through by a fluid and another fluid to be flowed around, the task specified above is characterized solved that a previously described collection box at the Connecting surface cohesively with one of Floors is connected. According to a substantial Aspect of the invention is the connection surface, preferably as a soldering surface is executed, but also can be welded between the collecting box and the associated floor compared to conventional collection boxes increased. Through the reinforcing ribs, which are preferably mounted outside, but also inside can be attached, the strength of the header clearly increased. By the streamlined designed tie rods will increase the strength or stability of the collecting tank further increased. By the one piece associated with the collection box holder or mounting bracket is the mounting or fixing of the heat exchanger simplified with the collecting box. In addition, holds the collecting tank according to the invention or Heat exchanger high internal pressures and is resistant to temperature changes. The inventive Heat exchanger is suitable for vacuum soldering or to be soldered by Nocolok soldering. Of the Heat exchanger according to the invention can be for direct or indirect cooling be used.

One preferred embodiment of the heat exchanger is characterized in that the tubes are surrounded by a jacket are, the materially connected to the floors is. Preferably, the jacket is provided with at least one entrance and at least one outlet opening. By the openings will be the more medium in and out of the Heat transfer block led where it the tubes flow around to add or remove heat.

One Another preferred embodiment of the heat exchanger is characterized in that the jacket of two separate shell parts is formed. The shell parts are preferably as two shell halves Running the tubes of the heat transfer block surround. According to another aspect of the invention the shell parts are designed as equal parts. Thereby the production is simplified. The collecting tank according to the invention stabilizes the entire structure of the heat carrier, in particular a charge air cooler, and may serve as a carrier be used.

One Another preferred embodiment of the heat exchanger Is characterized in that the collecting box a foot area or Has foot, in particular by claws and / or a corrugated flute, with a form-fitting with one of the floors is connected. The foot area is integrally connected to the collection box. Preferably is a seal between the foot area and the floor arranged. The seal is preferably received in a groove.

Further Advantages, features and details of the invention will become apparent the following description, with reference to the drawing various embodiments described in detail are. Show it:

1 a perspective view of a heat exchanger according to the invention;

2 the heat exchanger 1 in the top view;

3 the heat exchanger 1 in the rear view;

4 the same view as in 1 without a jacket around the heat transfer block;

5 a perspective view of a first header of the in the 1 to 4 illustrated heat exchanger;

6 a perspective view of the second header of the in the 1 to 4 illustrated heat exchanger;

7 another perspective view of the collection box 5 ;

8th the representation of a section through a connecting region in which a collecting box with a heat transfer block of the heat exchanger from the 1 to 4 connected is;

9 a perspective view of the second header of the in the 1 to 4 illustrated heat exchanger according to another embodiment;

10 the heat exchanger 1 in the plan view according to another embodiment;

11 to 15 schematic representations of various Monoblockaus guides, in which several heat exchangers are integrated into a monoblock;

16 to 18 various possibilities for fastening a collecting tank to a support structure;

19 to 20 two sectional views for attachment of collection boxes to a bottom of a heat exchanger;

21 and 22 in each case a collection box in section with a tubular to set;

23 a simplified representation of a heat exchanger with a collecting box, to which at a fixing point a nozzle is attached;

24 to 27 various embodiments of the attachment point 23 on average and

28 and 29 in each case a section of a collecting tank with a holding element or a fastening element comprising a rubber stopper.

The The invention relates generally to heat exchangers. Especially Advantageously, the invention for intercooler be used. For especially indirect intercoolers occur very high inlet temperatures, for example, more as 200 degrees Celsius. The heat exchanger according to the invention is preferably made of aluminum.

In the 1 to 4 a heat exchanger according to the invention is shown in different views. The heat exchanger 1 includes a heat exchanger block 3 between two storage tanks 4 . 5 is arranged. At the collecting box 4 are two holders 6 and 7 attached, which serve the heat exchanger 1 , preferably in a motor vehicle, to be fastened to a supporting structure. Analog are at the collecting box 5 two more holders 8th . 9 appropriate, which serve the same purpose.

The collection box 4 has a connection area 11 on, the one opening 12 having. The opening 12 is in a neck 13 provided and serves the entry of a first medium, such as air, in the collecting box 4 to enable. Analog has the collection box 5 a connection area 15 with an opening 16 on that in a neck 17 is provided. The opening 16 allows the outlet of the first medium, in particular of charge air, from the collecting box 5 ,

In a connection area 18 is the collector box 5 cohesively with the heat transfer block 3 connected. Analog is the collection box 4 in a connection area 19 cohesively with the heat transfer block 3 connected. The heat transfer block 3 has essentially the shape of a cuboid, the, how to in 3 sees, at its bottom in a connection area 21 an opening 22 which, in egg nem neck 23 is provided. The stub 23 is in a bulge 24 inserted and materially connected to this. Analog is at the top of the heat transfer block 3 in a connection area 41 an opening 42 in a neck 43 intended. The stub 43 is in a bulge 44 inserted and materially connected to this.

Each of the holders 6 to 9 has a recess 26 to 29 with a U-shaped outline. The recesses 26 to 29 are open to the outside.

The heat transfer block 3 includes a shield for shielding to the outside 30 made of two coat halves 31 . 32 is formed. At the shell halves 31 . 32 These are separate parts, which are preferably designed as identical parts. Each half of the jacket 31 . 32 includes two in essence rectangular recesses 33 . 34 ; 35 . 36 , The recesses 33 . 35 and 34 . 36 the shell halves 32 . 31 are arranged in pairs adjacent so that in each case two recesses 33 . 35 and 34 . 36 together a rectangular opening in the mantle 30 form.

In 4 is the heat exchanger 1 without coat ( 30 in 1 ). In this illustration you can see that the two collection boxes 4 . 5 through several pipes 47 to 49 connected to each other. The pipes 47 to 49 are flowed through by the first medium, in particular charge air. At the same time the pipes are 47 to 49 from a second medium, in particular coolant, flows around in order to withdraw heat from the first medium, in particular hot charge air. But it is also possible to supply heat to the first medium via the second medium. The second medium passes through the openings 22 . 42 into the inside of the coat 30 to the pipes 47 to 49 to flow around.

In 5 is the collector box 4 shown in perspective alone. The collection box 4 has a variety of ribs on the outside 51 to 58 on. Ribs 51 to 58 serve to collect the collection box 4 to reinforce and are therefore also referred to as reinforcing ribs. In the in 5 The perspective shown can be seen through the opening 12 in the neck 13 through a tie rod 60 , which is between the two opposite longitudinal walls of the collecting tank 4 arranged and integrally connected to the longitudinal walls, which are also referred to as side walls, is connected. The tie rod 60 serves the mechanical strength of the header 4 to increase. Depending on the design of the collecting tank, the tie rod can also be used as a flow straightening element or as a partition.

In 6 is the collector box 5 shown in perspective alone. The collection box 5 indicates on its outside, like the one in 5 illustrated collection box 4 , a variety of ribs 61 to 65 on. Ribs 61 to 65 go from a connection surface 66 out. At the interface 66 it is an area that serves to collect the collection box 5 with another component of the heat exchanger 1 connect to. The connection is preferably a cohesive connection, in particular a solder connection. Therefore, the connection area becomes 66 referred to as Lötverbindungsfläche. The solder joint surface 66 has essentially the shape of a rectangle, but can have any shapes. Ribs 61 to 65 go from the soldering surface 66 from and run substantially perpendicular to this.

In 7 is the collector box 4 presented in a perspective from below. In this illustration you can see that the tie rod 60 has substantially the shape of a rectangle, which is perpendicular to the circumferential soldering surface 66 is arranged. Through a dashed line 68 is hinted that the soldering surface 66 even to the outer ends of the ribs 51 to 58 may be pulled out to the soldering surface 66 to enlarge.

In 8th is a wall 70 one of the collection boxes shown in section. The wall 70 is with its free end cohesively with a bottom edge region 71 a floor 75 connected. For this purpose is in the bottom edge area 71 a groove 72 placed in the free end of the wall 70 that also as a board 73 is designated, engages. The board 73 has a paragraph 74 on, at the bottom edge area 71 is applied.

The floor 75 has several through holes 76 . 77 on, each with an insertion bevel 78 . 79 are equipped. The insertion bevel 78 . 79 facilitates the insertion of pipe ends from pipes 81 . 82 the heat transfer block of the heat exchanger. The pipe ends of the pipes 81 . 82 be cohesively, preferably by soldering, with the ground 75 connected. Furthermore, the floor 75 cohesively with the jacket 30 connected. Finally, the floor 75 in its outer bottom edge area 71 cohesively, preferably by soldering, with the board 73 the Wall 70 connected to the collection box.

The coat 30 is when assembling the heat exchanger on the heat transfer block 3 pushed with the tubes, with the two shell halves 31 . 32 be compressed. Preferably, the tubes and the jacket are 30 clad in a simple way a cohesive connection between the jacket 30 and the tubes of the heat transfer block 3 to enable. Preferably, the bottoms connected to the tube ends of the tubes of the heat transfer block 3 also have at least one plated surface. The floors are how to get in 8th looks, soldered to the collection boxes. The collection boxes 4 . 5 are preferably unplated.

In 9 is the collector box 5 as he is in 6 is shown in the same perspective according to another embodiment. To denote the same parts, the same reference numerals are used. To avoid repetition, the above description of the 1 to 6 directed.

At the in 9 illustrated embodiment is a locking element 81 with a catch 82 integral with the collecting box 5 executed. The locking element 81 has the shape of a cuboid finger 83 standing at a corner with the catch 82 Is provided. Two paragraphs 84 that is vertical to the main extension direction of the locking element 81 run, form a stop when mounting the header tank 5 on a supporting structure of a motor vehicle. The locking element 81 goes from the rib 64 out for reinforcement at the collecting box 5 is appropriate. The rest element 81 is inserted and locked for fixing the heat exchanger in a complementary recess in the support structure of the motor vehicle. The use of the locking element provides the advantage that additional additional fasteners can be omitted.

10 shows a similar representation as in 2 according to a further embodiment. To designate the same parts, the same reference numerals are used. To avoid repetition, the preceding description of the 1 and 2 directed. At the in 10 illustrated embodiment is a holder 85 integral with a rib 86 executed and partially integrated into this. The rib 86 is for reinforcement on the collecting box 4 attached and points to her the heat transfer block 3 opposite side of a contact surface 87 for a rubber element that also serves as a seat 87 referred to as. From the seat 87 extends in the vertical direction a pin 88 parallel to the pipes 47 to 49 of the heat transfer block 3 , The pencil 88 is used to attach the heat exchanger 1 in a complementary executed recess, for example, a blind hole, inserted in the support structure of the motor vehicle. Preferably, prior to attachment of the heat exchanger 1 on the support structure a rubber element, for example in the form of a rubber stopper with a blind hole for receiving the pin 88 , on the pen 88 plugged it so that it touches the contact surface 87 comes to the plant. The rubber element (not shown) serves to heat exchanger 1 elastic store.

On the other side of the collecting tank 4 that is in 10 Below is a similar holder 90 integral with the collecting box 4 connected. The holder 90 includes a base 91 having a T-shaped cross-section with reinforcing ribs. The base 91 includes a seat 92 in a plane with the seat 87 is arranged. From the seat 92 go a pen 93 from, which has the shape of a straight circular cylinder. The pencil 93 and the seat 92 have the same function as the pen 88 and the seat 87 ,

In 11 is a monoblock 100 shown schematically, are summarized in the four heat exchanger WT1 to WT4. The monoblock 100 becomes, as by arrows 101 and 102 is indicated, flows through a medium. This medium flows in the monobloc 100 past the heat exchangers WT1 to WT4, which are also referred to as heat exchangers. The heat exchangers WT1 to WT4 are arranged side by side. The heat exchangers WT1 and WT3 become as indicated by arrows 103 . 107 and 104 . 108 is indicated, flows through from top to bottom. The heat exchangers WT2 and WT4 are against it, as indicated by arrows 105 . 109 and 106 . 110 is indicated, flows through from bottom to top.

In 12 is a monoblock 111 represented in the three heat exchangers WT1 to WT3 are summarized. By arrows 112 . 113 is indicated that the heat exchanger or heat exchanger WT1 to WT3, in particular for indirect cooling, are flowed through by a medium. The heat exchanger WT1 becomes as indicated by arrows 114 and 115 is indicated, flows through another medium. The medium flow is deflected once. The heat exchanger WT2 becomes, as by arrows 116 . 117 is indicated, flows through from top to bottom. In contrast, the heat exchanger WT3, as indicated by arrows 118 . 119 is indicated, flows through from bottom to top.

In 13 is a monoblock 120 represented in which the same heat exchangers WT1 to WT4 are summarized, as in the 11 shown heat transfer monoblock 100 , However, the heat transfer monoblock becomes 120 flows around directly from a medium, in particular cooled. The flow through the heat exchanger WT1 to WT4 is indicated by arrows 121 to 128 indicated.

In 14 is a monoblock 130 represented in which the same heat exchanger WT1 to WT3 as in the 12 illustrated embodiment are summarized. However, the monoblock will 130 with the heat exchangers WT1 to WT3 for direct cooling flows around directly from a medium. An additional housing, as is the case in the 11 and 12 illustrated embodiments is provided in the in the 13 and 14 not shown provided embodiments. The flow through the heat exchanger WT1 to WT3 is indicated by arrows 131 to 136 indicated.

In 15 is a monoblock 134 shown, which is a monoblock housing 137 with an entrance opening 135 and an exit opening 136 having. In the monoblock 134 are three heat exchangers 138 . 139 . 140 summarized. All three heat exchangers 138 to 140 be in the monoblock housing 137 flows around the same medium. At the same time, the heat exchangers 138 to 140 , as indicated by arrows, flows through another medium. The heat exchanger 138 . 140 are flowed through from top to bottom. The heat exchanger 139 however, flows through from bottom to top. The terms above and below refer to the detailed description of the figures each on the associated figure. Of course, the heat exchanger in the installed state can also be arranged horizontally or flowed through.

In 16 is part of a collection box 142 shown, which according to the tongue and groove principle on a support structure 143 a motor vehicle is attached. Due to the positive connection according to the tongue and groove principle a simple connector without additional fasteners is possible. Below is in 16 hinted that a collecting box 144 also with the aid of a sheet-metal connection element 145 on a supporting structure 146 a motor vehicle can be attached. The connection element is, for example, by means of weld connection points or solder connection points both with the support structure 146 as well as with the collecting box 144 cohesively connected.

In 17 is a collection box 148 simplified, the two upper surfaces on its upper side 149 . 150 each of which has a fixing pin 151 . 152 emanates. The fixing pins 151 . 152 and the bearing surfaces 149 . 150 are integral with the collecting box 148 connected. The fixing pins 151 . 152 are inserted into complementary executed recesses, in particular blind holes, which are provided on a support structure (not shown) of a motor vehicle. The connection is preferably designed as a plug connection. Alternatively, the mounting pins 151 . 152 also be provided with a thread on which a nut (not shown) can be screwed. In this embodiment, the fixing pins 151 . 152 inserted through through holes in the support structure of the motor vehicle. Thereafter, on the free ends of the mounting pins 151 . 152 a mother unscrewed.

In 18 is a holder 154 simplified, showing a snap hook 155 includes. The snap hook 155 is integrally connected to a (not shown) collecting tank and serves to the collecting box to a support structure 156 secure with the help of a snap connection. The snap connection has the advantage that additional, additional fasteners can be omitted.

In the 19 and 20 Two further embodiments are shown how a collecting box can be fixed to a bottom of a heat exchanger. In 19 is part of a collection box 158 shown in section. The collection box 158 has one foot at one end 159 with a rectangular cross section. The foot 159 is with the help of claws 161 coming from a ground 160 bent out, at the bottom 160 attached. Between the foot 159 and the floor 160 is a seal in a groove 157 arranged.

In 20 is a collection box 162 shown on which a foot 163 is formed, which has a rectangular cross-section. The foot 163 is using a corrugated flute 165 on a floor 164 a heat exchanger attached. Between the foot 163 and the floor 164 is a seal 166 arranged.

In 21 is a collection box 180 shown in section. The collection box 180 includes a fastener 181 in the form of a tube-like approach 182 that is integral with the collecting box 180 connected is. The tube-like approach 182 includes a blind hole 183 that can be threaded. Alternatively, a self-tapping screw can be screwed into the blind hole to the collecting box 180 with the fastener 181 to attach to a support structure of the motor vehicle. Alternatively, a fixing pin in the blind hole 183 engage, emanating from the support structure. Alternatively or additionally, a plastic element, in particular a rubber element, in the blind hole 183 be included. In the plastic element, a screw can be screwed, which serves to the collection box 180 with the fastener 181 to attach to the support structure. The plastic element, in particular the rubber element, provides the advantage that tolerances and / or thermal expansions of the collecting tank or of the associated heat exchanger can be compensated at the fastening point.

In 22 is based on a similar collection box 185 shown in section that a fastener 186 can also be attached to the side of the collection box. The fastener 186 includes a tubular approach 187 , the side in one piece with the collection box 185 connected is. The tube-like approach 187 includes a blind hole 188 which can perform the same functions as the blind hole already described 183 of in 21 illustrated embodiment.

In 23 is a heat exchanger 190 with two collection boxes 191 and 192 shown greatly simplified. At the collecting box 192 is a neck 193 at an attachment point 194 attached. The attachment point 194 is in the 24 to 26 shown in section according to various embodiments.

In 24 you can see on average that at the collecting box 192 facing the end of the neck 193 A bunch 196 is trained. The collar is used to attach the neck 193 of claws 199 . 200. embraced by the collecting box 192 out. According to another aspect of the invention Education is the federal government 196 preferably with at least one solder-plated surface 197 Mistake.

In 25 is shown at the end of the neck 193 in addition to the federal government 196 one more step 201 can be trained. The stage 201 creates a paragraph with which the neck 193 radially inward on an angled edge area 202 of the collecting tank 191 rests. The fastening of the neck 193 , done with claws 199 that the covenant 196 surround radially on the outside. For sealing can be between the federal government 196 and the collection box 191 a seal 204 be arranged.

In 26 an embodiment is shown in which the federal government 196 radially outside of a bent edge region 206 of the collecting tank 191 is encompassed. Between the bunch 196 and the collection box 191 is a solder disk 207 arranged.

In 27 an embodiment is shown in which the nozzle 193 at the attachment bulges 210 . 211 that points to a tubular approach 212 of the collecting tank 191 rests. The bulges 210 . 211 can also be designed as a single circumferential bulge. The end of the neck 193 extends through the tubular extension 212 through and slightly bent over to the neck inside 193 to fix before soldering.

In 28 is a section of the in 2 illustrated collecting tank 4 with a holding element 217 illustrated according to another embodiment. The holding element 217 includes a tubular approach 220 that is integral with the collecting box 4 connected is. The tube-like approach 220 includes a blind hole 221 into which a rubber stopper 222 is used. In the blind hole 221 with the rubber stopper 222 is a screw 224 screwed in, which serves the collecting box 4 with the holding element 217 on a supporting structure 225 to fix. The rubber stopper 222 allows the compensation of tolerances and / or thermal expansion of the associated heat exchanger.

In 29 is a section of a collection box 230 represented, from which a fastening pin 231 emanates. The fixing pin 231 is in a blind hole of a rubber stopper 232 added. The rubber stopper 232 in turn is in a through hole 233 on a supporting structure 234 attached. The fixing pin 231 On the one hand enables stable mounting of the collecting tank 230 , On the other hand, it allows in the rubber stopper 232 recorded fixing pin 231 a compensation of tolerances and / or thermal expansions of the associated heat exchanger in different directions.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19902507 A1 [0002]

Claims (27)

Collection box of a heat exchanger ( 1 ), in particular for a motor vehicle, having a connection area ( 18 . 19 ), which has at least one connection surface ( 66 ), and with a connection area ( 11 . 15 ), which has at least one opening ( 12 . 16 ), characterized in that the collecting box ( 4 . 5 ) is designed as extruded part. Collection box according to claim 1, characterized in that of the connection area ( 66 ) Reinforcing ribs ( 51 - 58 ; 61 - 65 ), which are integral with the collecting box ( 4 ; 5 ) are connected. Collecting box according to claim 2, characterized in that the reinforcing ribs ( 51 - 58 ; 61 - 65 ) from the interface ( 66 ) go out. Collecting box according to claim 3, characterized in that the connecting surface ( 66 ) continuously between the reinforcing ribs ( 51 - 58 ; 61 - 65 ). Collecting box according to one of claims 2 to 4, characterized in that the connecting surface ( 66 ), relative to the collecting box ( 4 . 5 ), from inside to outside the same dimensions as an associated collection box wall with the reinforcing ribs ( 51 - 58 ; 61 - 65 ) having. Collecting box according to one of claims 3 to 5, characterized in that the reinforcing ribs ( 51 - 58 ; 61 - 65 ) perpendicular to the bonding surface ( 66 ). Collecting box according to one of the preceding claims, characterized in that at least one guiding and / or fastening element ( 181 ; 186 ) in one piece with the collecting box ( 142 ) connected is. Collecting box according to claim 7, characterized in that the guiding and / or fastening element ( 181 ; 186 ) is designed so that it allows a balance of tolerances and / or thermal expansions. Collecting box according to claim 7 or 8, characterized in that the guiding and / or fastening element ( 181 ; 186 ) at least one blind hole ( 183 ; 188 ) having. Collecting box according to one of the preceding claims, characterized in that at least one connecting piece ( 11 . 15 ) in one piece with the collecting box ( 4 . 5 ) connected is. Collecting box according to one of the preceding claims, characterized in that at least one fixing pin ( 88 ; 93 ; 151 . 152 ) is integrally connected to the collection box. Collecting box according to claim 11, characterized in that the fixing pin ( 88 ; 93 ; 151 . 152 ) from a contact surface or contact surface ( 87 ; 92 ; 149 . 150 ). Collecting box according to one of the preceding claims, characterized in that at least one latching element ( 181 ) in one piece with the collecting box ( 5 ) connected is. Collecting box according to one of the preceding claims, characterized in that at least one snap connection element ( 155 ) is integrally connected to the collection box. Collecting box according to one of the preceding claims, characterized in that at least one retaining element ( 6 - 9 ; 217 ) in one piece with the collecting box ( 4 . 5 ) connected is. Collecting box according to claim 15, characterized in that the holding element ( 6 . 9 ) starts from a rib. Collecting box according to claim 15 or 16, characterized in that the holding element ( 6 . 9 ) is integrated in a rib. Collecting box according to one of claims 15 to 17, characterized in that the holding element ( 6 - 9 ) perpendicular to the bonding surface ( 66 ) is arranged. Collecting box according to one of claims 15 to 18, characterized in that the retaining element ( 6 - 9 ) a recess ( 26 - 29 ), which at their the connection surface ( 66 ) facing away from the side. Collecting box according to one of claims 15 to 19, characterized in that the holding element ( 217 ) at least one blind hole ( 221 ) having. Collecting box according to one of the preceding claims, characterized in that the collecting box ( 4 . 5 ) at least one tie rod ( 60 ), which connects two opposite side walls of the collecting tank with each other and through the opening ( 12 ; 16 ) in the connection area ( 11 ; 15 ) is accessible. Collecting box according to claim 21, characterized in that the tie rod ( 60 ) perpendicular to the bonding surface ( 66 ) is arranged. Collecting box according to one of the preceding claims, characterized in that the connecting surface ( 66 ) at least one particular circulating paragraph ( 74 ) having. Heat exchanger, in particular for a motor vehicle, with a heat transfer block ( 3 ), the pipes ( 47 - 49 . 81 . 82 ) sandwiched between two floors ( 75 ), flowed through by a medium and are flowed around by another medium, characterized in that a collecting box ( 4 . 5 ) according to one of the preceding claims on the connecting surface ( 66 ) cohesively with one of the floors ( 75 ) connected is. Heat exchanger according to claim 24, characterized in that the tubes ( 47 - 49 ) of a coat ( 30 ), which are cohesively bonded to the floors ( 75 ) connected is. Heat exchanger according to claim 25, characterized in that the jacket ( 30 ) of two separate shell parts ( 31 . 32 ) is formed. Heat exchanger according to one of claims 24 to 26, characterized in that the collecting box ( 158 ; 162 ) a foot area or foot ( 159 ; 163 ), which, in particular by claws ( 161 ) and / or a corrugated flute ( 165 ), positively with one of the floors ( 160 ; 164 ) connected is.