EP1728038B1 - Device for replacing heat and method for the production thereof - Google Patents

Abstract

A device which is used to replace heat, for a motor vehicle, includes at least one first collecting and/or distribution device for at least one fluidic medium. The collecting and/or distribution device is fluidically connected to a plurality of through-flow devices, through which the medium flows at least in parts. The collecting and/or distribution device includes at least one base device, a covering device and a separating device, which divides the collecting and/or distribution device into at least two partial areas. The base device includes at least one projection which protrudes in an inward manner from a predetermined plane of the base device in relation to the collecting and/or distribution device and at least one section of the separating device is in contact with at least one lateral side of the projection, and at least one section of the plane of the base device is in indirect contact.

Description

The present invention relates to a device for exchanging heat according to the preamble of patent claim 1 and a method for their preparation according to claim 34. Such a device is for example from the EP-A-0270433 known. Devices for exchanging heat have long been known from the prior art, especially in the automotive sector. These devices are known to have leads for a refrigerant, a distribution pipe for distributing the refrigerant to a plurality of flat tubes, a header for collecting the refrigerant after passing through the flat tubes, and a drain. It is possible that the collecting and the distribution pipe to fill in the form of a channel box, which has a partition wall. However, it must be ensured that the partition wall separates the water box tightly into an input and an output-side section.

For this reason, partitions are used in the prior art, which divide the water tank into two subspaces. There is the problem that the partitions are possible cost-saving and nevertheless sealing inserted into the collection box.

From the EP 0 656 517 a water / air heat exchanger made of aluminum for motor vehicles is known, in which a partition of a channel box engages in grooves and / or slots in the tube sheet, wherein the engagement is carried out by crossing of collars through which flat tubes are pushed. These are grooves, which have a rectangular shape and are limited to all sides. By engaging the partition wall or its tongues a relatively secure hold and a relatively reliable sealing of the heat exchanger assembly is achieved. During production, however, flux or solder may accumulate in the bordered grooves, which may result in joining problems in the manufacturing process.

The invention is therefore based on the object to reduce the cost of producing a device for exchanging heat.

Furthermore, a collection box is to be made available in which the input and the output side area are reliably separated from each other or sealed.

According to the invention, the objects are achieved by a device for exchanging heat, which has at least one first collecting and / or distributing device for at least one flowable medium, the collecting and / or distributing device having a plurality of throughflow devices, through which the medium at least in sections flows, is fluid-connected, and the collecting and / or distribution device has at least one bottom device, a cover device and a separating device, which divides the collecting and / or distribution device into at least two subspaces. In this case, according to the invention, the floor device has at least one projection projecting inwards in a predetermined plane of the floor device with respect to the collecting and / or distributing device, and at least one section of the separating device is connected with at least one a side surface of the projection and a portion of the plane of the bottom device in at least indirect contact.

The advantage of the invention is that the partition is in this way in contact with two side surfaces at the same time and thereby the stability of the device can be increased, which is particularly important when relatively thin-walled components are used for weight and cost reduction. In addition, it is prevented according to the invention that during the production process solder, flux and the like accumulate in spatially limited grooves.

A collecting and / or distributing device is understood to mean a device which can either distribute a fluid to a plurality of tubes or collect a fluid that flows out of a multiplicity of tubes. In this case, this distribution device has a bottom and ei ne cover device, that is, the collecting and / or distribution device is at least from a bottom device, which is assembled with a lid device constructed. In the given level of the ground device is a geometric plane from which on the one hand protrude the inwardly projecting projections, and on the other hand also further edge regions can be increased or lowered. Here, the level of the bottom device is understood to be the plane against which the separating device rests. More precisely, the level of the ground device is understood to mean the plane at which the separating device rests. This plane is thus to be understood as a reference plane with regard to further planes, as will be explained with reference to the figures.

Under projecting inward is to be understood that the projection protrudes into the interior of the collecting and / or distribution device. At least indirect contact is to be understood as meaning that the individual surfaces involved can either touch directly or that between them Surfaces another material or another medium is arranged. This may be, for example, a solder layer or flux or the like.

According to the invention, the inwardly projecting projection has at least one side surface which forms a substantially right angle with the plane of the bottom device, the separating device being arranged at this right angle. This is to be understood that the projection, as shown above, may have any geometric shapes, but one of its outer surfaces includes a right angle together with the plane of the bottom device. The separator is arranged at this right angle and is on the one hand in indirect contact with the side surface of the projection, and on the other hand with the portion of the bottom device adjacent to this side surface.

In a further preferred embodiment, a plurality of inwardly projecting projections is provided. In this case, preferably, all of these inwardly projecting projections at least each have a side surface which is perpendicular to the plane of the bottom device.

In a further preferred embodiment, the plurality of inwardly projecting protrusions are arranged substantially in a line. This means that the side surfaces of the projections, which are in contact with the separating device and which preferably make a right angle with the plane of the bottom device or the bottom surface, are arranged essentially in one plane. This plane is preferably substantially perpendicular to the plane of the ground device.

The separating device is arranged on the side surface of the individual projections, and communicates with the individual side surfaces and the plane of the

Ground device in at least indirect contact. In this case, the individual projections may have a predetermined distance from each other. In a preferred embodiment, the individual projections are interrupted by openings in the bottom device, through which the individual flow devices can be guided into the interior of the collecting and / or distribution device, wherein preferably the openings and the projections are arranged alternately.

In a further preferred embodiment, the plurality of projections and sections are arranged alternately offset from each other laterally. This means that essentially a first subset of the plurality is arranged in a first line, and a second subunit of the plurality is arranged in a second line, wherein these lines are preferably parallel to one another. Preferably, the side surfaces of the alternately mutually laterally offset projections, which are in contact with the separator, are substantially each obliquely opposite to each other at a predetermined angle. This means that the individual projections are arranged in a zigzag manner relative to one another, and the side surfaces, which are in contact with the separating device, respectively the planes, which are spanned by the individual side surfaces, face one another substantially parallel.

During assembly, the partition wall is arranged between the individual projections in such a way that the sections are alternately in contact with the separating device from different sides. For example, the first, third, fifth, seventh, etc. protrusions will be in contact with one side of the separator, whereas the second, fourth, sixth and eighth portions will be in contact with the other side of the divider.

In a further preferred embodiment, the dividing wall has a thickness of 0.2 mm - 5 mm, preferably between 0.4 mm and 2 mm, and particularly preferably from 0.8 mm to 1.2 mm. Preferably, the partition is at least partially coated with a layer, such as in particular - but not exclusively - solder-plated, with zinc or the like. It has been shown that a thickness of the dividing wall in the specified range, in a particularly advantageous manner on the one hand the weight and cost savings, but on the other hand causes a reliable separation of the collecting tank.

According to the invention, the inwardly projecting projections on a surface - in particular a surface - which extends substantially parallel to the bottom device. According to the invention, the inwardly projecting protrusions have a surface which is substantially oblique with respect to the plane of the bottom means. Thus, the inwardly projecting projections on the shape of a step, which has at least one inclined surface.

In addition, the projections can have further surfaces which are substantially perpendicular to the plane of the bottom device and which are particularly preferably also substantially perpendicular to the abovementioned surfaces. Assuming the image of a step, these surfaces would be side surfaces that bound the step in their width.

In a further preferred embodiment, the inwardly projecting protrusions have a height which is between 2 mm and 10 mm, preferably between 3 mm and 8 mm, and particularly preferably between 4 mm and 6 mm.

The extent of the side surfaces along the longitudinal direction of the collecting and / or distributing device is between 2 mm and 10 mm, preferably between 3 mm and 8 mm, and more preferably between 4 mm and 6 mm.

It has been found that the resulting side surface, which is substantially perpendicular to the plane of the bottom device, ensures a particularly advantageous manner secure contact with the separator.

In a further preferred embodiment, the inwardly projecting portions extend substantially uninterruptedly along the longitudinal direction of the bottom means. This means that a substantially continuous step occurs along the longitudinal direction of the bottom device, on which the separating device is arranged.

In a particularly preferred embodiment, the separating device is in at least indirect contact with at least one side surface of all inwardly projecting sections.

It is particularly preferred in the contact region between the bottom device and the side surface on the one hand, and the separating device on the other hand provided a connection medium to promote a material connection between the separating device and the bottom device. This bonding medium is selected from a group of bonding media containing solders, particularly solders comprising aluminum, flux and the like.

In a further preferred embodiment, the separating device is designed as a partition. That is, the separating device is a substantially two-dimensional structure, which runs in the interior of the collecting and / or distribution device.

In a further preferred embodiment, the bottom device has a multiplicity of passage openings, wherein the plurality of passage openings particularly preferably have a substantially slot-like profile. In this case, the individual protruding sections are preferably each arranged between the passage openings.

the passage openings serve to introduce a multiplicity of flow-through devices, which have a flat tube-like profile, into the collecting and / or distributing device. For this purpose, the passage openings on profiles which are adapted to those of the flow device. Particularly preferably, the flat-tube-like flow devices have two flow paths for a liquid and / or gaseous medium, which are separated from one another.

This separation can be effected by a partition wall in the interior of the flow-through device, but it would also be possible for the flow-through devices to be pressed together in a preferably central region, so that two chambers are created in this way. In addition, it is also possible that the separation between the two areas in the course of a brazing process arises.

A slot-like profile is understood to mean that the openings extend substantially in one direction and only slightly in a direction perpendicular to this direction. In a further preferred embodiment, the plane spanned by the separating device essentially represents a plane of symmetry for the bottom device. In this case, the individual passage openings are also divided essentially centrally by the separating device. In this symmetry consideration any existing outflows or the like are not taken into account. In a preferred embodiment, the passage openings, peripheral edges or collars. By these collars, the flow-through devices are pushed through during production and preferably connected to the collars in a positive and / or material and / or non-positive manner.

Preferably, the collars are inwardly directed with respect to the collection and / or distribution device, i. towards the ends of the flow devices. The collars are preferably adapted to the shape of the flow-through devices and surround them substantially completely. In this case, it is essentially understood completely that nevertheless smaller regions in the circumferential direction, for example the region in which the separation region of the flow-through device is provided, can be recessed by the collars.

By the inwardly projecting collars, the connection between the bottom device and the flow tubes can be promoted.

In a further preferred embodiment, the ends of the collars are arranged on a different level with respect to the plane bottom device. Concretely, the ends of the collars are less in the interior of the collection and / or distribution device or, in a particularly preferred embodiment, as compared to the level of the ground device. In the latter case, that is, in the case where the plane of the bottom device is arranged higher than the level of the collars, this results in the partition inserted into the bottom device being above the collars, and therefore no crossing of the collars by the collars Separator occurs. In this way, a higher sealing effect can be achieved.

In a further embodiment, the collars with respect to the collecting and / or distribution device to the outside. In a further embodiment, some of the collars bzg. the collection and / or distribution device inside, others to the outside.

It would be possible in principle to provide on the two sides of the partition in the installed state each separated from each other passage openings. In a preferred embodiment, however, the passage openings extend along a majority of the width of the bottom device and are also connected to each other in its central region, preferably by a narrowed region.

In a further preferred embodiment, the length of the bottom device extends beyond the length of the separating device. In this case, the separating device is preferably in contact with both the bottom and the lid device and connects them. In this case, the plurality of throughflow devices with a substantially flat tube-like cross section is preferably inserted into the plurality of individual passage openings and soldered in a subsequent work step.

In a further preferred embodiment, the side surface of the inwardly projecting protrusions, which is in contact with the separator, is larger than the portion of the bottom device, which is in contact with the separator. By this is meant that the respective side surface surmounts the surface assigned to it in the plane of the bottom device, which is preferably perpendicular to it, in terms of its size. In this way, the partition within the collecting and / or distribution device can be supported particularly advantageous.

In a further preferred embodiment, the portion of the bottom device that is in contact with the separator is wider than the thickness the separator. Therefore, the separator is preferably not inserted into a groove or a slot, but the bottom portion in which the contact with the separator occurs is wider than the separator itself.

In a further preferred embodiment, a multiplicity of support devices projecting with respect to a predetermined plane or base surface of the floor device are provided. These support means are protrusions of a predetermined length, which cause the ground means to be stabilized against bending. The individual support means are arranged substantially between the passage openings. Preferably, at least part of these support means goes over into the projections. This means that in each case a support means with the projection has an approximately T-shaped profile.

In a further preferred embodiment, the bottom device has a projecting peripheral edge. This means that an edge is provided which extends upwards starting from the plane of the floor device, for example in the direction of a second cover device. The peripheral edge serves to connect the bottom device with a cover device. Particularly preferably, the bottom device has at least one tab, preferably a plurality of tabs in the peripheral edge. These tabs also serve to connect to a second lid means to thereby assemble a bottom means and a lid means into a collecting and / or distributing means.

In a further preferred embodiment, the separating device, in particular the dividing wall, is aligned substantially parallel to the passage openings. Preferably, the separating device is arranged in a receiving portion having guide surfaces for holding the separating device.

The present invention is further directed to a method for producing a device for exchanging heat with the following method steps. In a first method step, a bottom device is produced with at least one projection; In a further method step, at least one connection medium is applied to at least one side surface of the projection.

In addition, the connection medium is also applied to at least a portion of the bottom device, which adjoins the side surface of the at least one projection. In a further step, the separating device is arranged on the bottom device so that the separating device is in at least indirect contact both with the bottom device and with the side surface of the projection.

In this case, a plurality of projections are preferably provided, with which the separating device or with its side surfaces, the separating device is brought into contact.

Preferably, in the method, the separating device is placed on the side surfaces of the individual projections and then soldered, wherein during the soldering process, the effect of gravity is used to establish the contact between the side surfaces and the separating device.

In another preferred embodiment, at least one inwardly projecting portion is produced by machining the bottom means, the working being formed from a group of operations including punching, deep drawing and the like.

In a further preferred embodiment, the portion of the bottom device adjacent to the inwardly projecting portion extends substantially in the plane of the bottom device. This means that the bottom device is present for example in the form of a sheet, wherein the individual through holes are punched out, for example, and the individual protrusions, such as the support means and the inwardly projecting portions by pressing, pulling or the like are effected.

Thus, as the level of the floor device, the plane from which the inwardly projecting sections and the other devices extend and which is in contact with the partition wall can be understood.

Preferably, furthermore, a support device is produced in the floor device, and in doing so it particularly preferably merges into at least one inwardly projecting section. Furthermore, a plurality of through-openings are preferably stamped into the bottom device, in which case collars of the through-opening are particularly preferably produced, which result in the interior of the collecting and / or distributing device. These collars preferably surround the individual passage opening substantially completely. By substantially complete it is understood that nevertheless a small area of the collars can be recessed, through which the separator runs.

Preferably, a flat-tube-like flow device is also at least partially inserted in each passage opening and generates a force-fit, form-fitting and / or material-locking connection between the base device and each flow-through device.

More preferably, the connection between the bottom device and the plurality of flow devices is generated by a method selected from a group of methods including brazing, brazing, welding, and the like, as well as combinations of these methods.

Furthermore, the separating device is preferably pressed with a predetermined force both against a side surface of the projection and against the section of the bottom device. In this case, as stated above, the effect of gravity in the pressing against the side surface can be used.

Furthermore, the bottom device surrounding edges are preferably produced by a further process step. Also in the production of these edges, a method such as a deep drawing method or a bending method or the like can be resorted to.

The invention is further directed to the use of the above-described apparatus for exchanging heat in air conditioning systems of motor vehicles.

Further advantages of the device and the method according to the invention will become apparent from the accompanying drawings.

Fig. 1

eine Ausschnittsdarstellung einer erfindungsgemäßen Vorrichtung zum Austausch von Wärme;

Fig. 2

eine Explosionsdarstellung der Ausschnittsdarstellung aus Fig. 1;

Fig. 3

eine Ausschnittsdarstellung einer erfindungsgemäßen Bodenein- richtung in einer ersten perspektivischen Ansicht;

Fig. 4

eine weitere perspektivische Ansicht der Bodeneinrichtung aus Fig. 3;

Fig. 5

eine Rückansicht der Bodeneinrichtung aus Fig. 3;

Fig. 6

eine Detailansicht einer weiteren Ausführungsform einer erfin- dungsgemäßen Bodeneinrichtung;

Fig. 7

eine weitere Darstellung der Bodeneinrichtung aus Fig. 6;

Fig. 8

eine Rückansicht der Bodeneinrichtung aus Fig. 6;

Fig. 9

eine Detailansicht einer weiteren Ausführungsform einer erfin- dungsgemäßen Bodeneinrichtung;

Fig. 10

eine weitere Darstellung der Bodeneinrichtung aus Fig. 9;

Fig. 11

eine Rückansicht der Bodeneinrichtung aus Fig. 9;

Fig. 12

eine Detailansicht einer weiteren Ausführungsform der erfin- dungsgemäßen Bodeneinrichtung;

Fig. 13

eine weitere Darstellung der Bodenansicht aus Fig. 12;

Fig. 14

eine Rückansicht der Bodeneinrichtung aus Fig. 12;

Fig. 15a

eine schematische Darstellung einer Bodeneinrichtung nach den Stand der Technik;

Fig. 15b

eine schematische Darstellung einer erfindungsgemäßen Boden- einrichtung;

Fig. 15c

eine schematische Draufsicht auf eine erfindungsgemäße Boden- einrichtung;

Fig. 15d

eine schematische Darstellung einer erfindungsgemäßen Boden- einrichtung;

Fig. 16

eine rückwärtige Ansicht einer weiteren Ausführungsform der er- findungsgemäßen Bodeneinrichtung;

Fig. 17

eine weitere Darstellung der erfindungsgemäßen Bodeneinrich- tung;

Fig. 18

eine perspektivische Darstellung der erfindungsgemäßen Boden- einrichtung in einer weiteren Ausführungsform,

Fig. 19

eine rückwärtige Ansicht der weiteren Ausführungsform der erfin- dungsgemäßen Bodeneinrichtung;

Fig. 20

ein weitere Darstellung der erfindungsgemäßen Bodeneinrichtung nach Fig. 18,

Fig. 21

eine rückwärtige Ansicht einer weiteren Ausführungsform der er- findungsgemäßen Bodeneinrichtung nach Fig. 18,

Fig. 22

eine Explosionsdarstellung der erfindungsgemäßen Vorrichtung zum Austauschen von Wärme

Fig. 23

eine Darstellung der Vorrichtung nach Fig. 22,

Fig. 24

einen Querschnitt der Bodeneinrichtung der Fig. 23 quer zur Trennwand entlang eines Trennwandschlitzes,

Fig. 25

eine Querschnitt der Bodeneinrichtung der Fig. 23 quer zur unge- schlitzten Trennwand,

Fig. 26

eine perspektivische Darstellung der erfindungsgemäßen Boden- einrichtung in einer weiteren Ausführungsform,

Fig. 27

eine rückwärtige Ansicht der weiteren Ausführungsform der erfin- dungsgemäßen Bodeneinrichtung;

Fig. 28

eine Explosionsdarstellung der weiteren Ausführungsform der er- findungsgemäßen Vorrichtung zum Austauschen von Wärme

Fig. 29

eine Explosionsdarstellung der weiteren Ausführungsform der er- findungsgemäßen Vorrichtung zum Austauschen von Wärme in rückwärtiger Ansicht,

Fig. 30

eine perspektivische Darstellung der weiteren Ausführungsform der Vorrichtung zum austauschen von Wärme, und

Fig. 31

einen Querschnitt durch die Bodeneinrichtung der Vorrichtung nach Fig. 30.

Showing:

Fig. 1

a sectional view of a device according to the invention for the exchange of heat;

Fig. 2

an exploded view of the detail view Fig. 1 ;

Fig. 3

a sectional view of a Bodenein- device according to the invention in a first perspective view;

Fig. 4

another perspective view of the bottom device Fig. 3 ;

Fig. 5

a rear view of the ground facility Fig. 3 ;

Fig. 6

a detailed view of another embodiment of an inventive ground device;

Fig. 7

another illustration of the ground facility Fig. 6 ;

Fig. 8

a rear view of the ground facility Fig. 6 ;

Fig. 9

a detailed view of another embodiment of an inventive ground device;

Fig. 10

another illustration of the ground facility Fig. 9 ;

Fig. 11

a rear view of the ground facility Fig. 9 ;

Fig. 12

a detailed view of another embodiment of the inventive bottom device;

Fig. 13

another illustration of the bottom view Fig. 12 ;

Fig. 14

a rear view of the ground facility Fig. 12 ;

Fig. 15a

a schematic representation of a ground device according to the prior art;

Fig. 15b

a schematic representation of a bottom device according to the invention;

Fig. 15c

a schematic plan view of a bottom device according to the invention;

Fig. 15d

a schematic representation of a bottom device according to the invention;

Fig. 16

a rear view of another embodiment of the inventive bottom device;

Fig. 17

a further illustration of the Bodeneinrich- inventive device;

Fig. 18

a perspective view of the bottom device according to the invention in a further embodiment,

Fig. 19

a rear view of the further embodiment of the inventive bottom device;

Fig. 20

a further illustration of the soil device according to the invention Fig. 18 .

Fig. 21

a rear view of another embodiment of the inventive ground device according to Fig. 18 .

Fig. 22

an exploded view of the device according to the invention for exchanging heat

Fig. 23

a representation of the device according to Fig. 22 .

Fig. 24

a cross section of the bottom device of Fig. 23 transverse to the dividing wall along a dividing wall slot,

Fig. 25

a cross section of the bottom device of Fig. 23 transverse to the non-slotted partition,

Fig. 26

a perspective view of the bottom device according to the invention in a further embodiment,

Fig. 27

a rear view of the further embodiment of the inventive bottom device;

Fig. 28

an exploded view of the further embodiment of the inventive device for exchanging heat

Fig. 29

an exploded view of the further embodiment of the inventive device for exchanging heat in rear view,

Fig. 30

a perspective view of the further embodiment of the device for exchanging heat, and

Fig. 31

a cross section through the bottom device of the device according to Fig. 30 ,

In Fig. 1 a section of a device according to the invention for the exchange of heat is shown. In this case, the device according to the invention on a plurality of flow devices 40, which are arranged substantially parallel to each other. At least one end of these flow-through devices 40 protrudes through a bottom device 1 with an end section 42. In a preferred embodiment, a further bottom device of the type shown here is arranged at the lower end of the flow devices 40. When assembled, the heat exchange device includes a lid (not shown) on, which causes two separate from each other through the partition wall 30 partial spaces arise, with a partial space in the figure to the left of the partition wall and a subspace in the figure to the right of the partition wall 30 is located. The spaces are separated by the partition wall 30 substantially gas and / or liquid-tight.

Fig. 2 is a detail view Fig. 1 shown in an exploded view. The partition wall 30 has a thickness D _T between 0.2 mm and 5 mm, preferably between 0.5 and 3 mm and particularly preferably between 0.7 mm and 1.2 mm. The partition has a plurality of recesses or slots 32 into which the areas 45 of the individual flat tubes 40 and the ends of these areas are inserted during assembly. In Fig. 1 this is shown for the assembled state.

The individual flow devices 40 in this embodiment have a first flow chamber 46 and a second flow chamber 48. The cross section of these flow chambers 46 and 48 is formed substantially flat tube-like, thus has a predetermined length in cross section and a width significantly reduced compared to this length. Instead of the flow chambers can also be provided a plurality of channels for the fluid or refrigerant. Between the flow chambers 46 and 48, the flow devices have a restricted area 45. The thickness D _{F of} this narrowed region is between 0.5 mm and 6 mm, preferably between 1 mm and 4 mm and particularly preferably between 1.5 and 2.7 mm.

In this constricted region 45, as stated above, the flow chambers 46 and 48 are separated from each other in a gas-tight and / or liquid-tight manner. During manufacture, the constricted areas can be created by pressing the flow devices at the appropriate location. In addition, these areas on the inner walls can also be solder coated, so that during a soldering a gas- and / or liquid-tight connection is formed.

The reference numerals 43 and 44 designate transition areas between the flow chambers 48 and 46. In these areas, the width of the flow devices preferably decreases at a predetermined angle with respect to the transverse direction 1B toward the area 45. This angle is preferably between 10 ° and 90 °, preferably between 30 ° and 90 ° and particularly preferably between 60 ° and 85 °. However, it is also possible for the regions 43 and 44 to curve or to bow in an arc shape towards the middle region 45. The reference numerals 7a and 7b denote in Fig. 2 a left-side or right-side projection provided in the bottom device. In this case, the projections are each arranged alternately once on the left and on the right side with respect to the partition wall 30. The distance D _A between the protrusions 7a and 7b, that is, in this case, between a protrusion 7b and the position corresponding to the position where an adjacent protrusion 7a is located is between 0.5 mm and 8 mm, preferably between 1.5 mm and 5 mm and more preferably between 1.8 mm and 4 mm.

Fig. 3 shows a detailed view of a ground device according to the invention in a first embodiment. In this case, the reference numerals 7a and 7b respectively refer again to left- and right-side projections. The reference numeral 8 b denotes a portion of the projection 7 b, which is in contact with the partition wall 30. In the same way, portions 8a of the projections 7a are in contact with the partition wall 30. In this embodiment, the individual projections 7a and the portions 8a are arranged substantially in a plane which is perpendicular to the plane of the bottom device. The portions 8b of the projections 7b are also arranged in a plane perpendicular to the plane of the ground device, but opposite laterally offset from the first-mentioned plane. Thus, the distance D _{A is} also the distance between these two planes to each other.

Reference numeral 9 denotes a portion of the bottom device, with which the separating device is at least in indirect contact. In this case, this section of the ground device lies substantially in the plane of the ground device.

As shown, in this embodiment, a mutual-stage arrangement 7a and 7b is provided.

Out Fig. 3 As a result, the portion of the ground device which is in at least indirect contact with the separating device 30 is at a predetermined height level N2 and, in contrast, the level N1 of the regions 11 of the ground device is lowered. Thus, N2 denotes the level of the level of the ground facility and thus the level of the reference plane mentioned above. The reference numeral 3 refers to a gap or a passage opening through which the end region 42 of the flow device 40 can be pushed. This gap has a narrowed central region 4, which, as stated above, is provided for receiving the constricted regions 45 of the flow-through device 40.

The reference numeral 5 refers to a collar which ensures a secure hold of the flow-through device 40, which is pushed through the passage openings.

It can be seen that the level N2, on which the bottom portion 9 of the bottom device is arranged, lies above the level N3, in which the collars 5 end.

However, other ratios of levels N1, N2 and N3 could be provided here as well. For example, all levels could be at the same level, and level N2 could be below level N3.

Fig. 4 shows another view of the bottom device Fig. 3 , It can be seen that the alternately arranged projections 7a and 7b are each made step-shaped. This means that in addition to the portions 8a and 8b, on which the partition wall 30 abuts, an upper portion 18a, 18b is provided, which is substantially perpendicular to the portion 8a, 8b. In addition, a rear portion 19a, 19b is provided which extends substantially parallel to the portion 8b and substantially perpendicular to the portion 18b. In this way, the projections 7a, 7b substantially in the shape of an inverted U on. The height of the projections, that is the distance between the upper surface 18b and the portion 9 is between 0.3 mm and 3 mm, preferably between 0.6 mm and 2 mm and more preferably between 0.8 mm and 1.5 mm ,

The reference numeral 11 refers to supporting means in the ground facility whose surface is at the level N1.

Fig. 5 shows a rear view of the ground device according to the invention. In this case, the reference numeral 3 again denotes an opening provided for the passage of the flow-through device, and the reference numeral 4 denotes the narrowed region in the middle. The reference numeral 8a here refers to the rear part of the portion in which the partition wall 30 is arranged. Also in this illustration it can be seen that the level of the bottom portion 9 is offset from the level of the recesses 11.

Fig. 6 shows a detailed view of another embodiment of the bottom device according to the invention. In contrast to the embodiment shown above, protrusions 7a and 7b are arranged on both sides of the bottom section 9 here. Between these projections, the (not shown) partition wall is provided and from below the (also not shown) flow-through devices are pushed through.

The partition in this embodiment abuts both the portions 8b of the projections 7b and the portions 8a of the projections 7a. However, it is also possible to choose the partition in a thickness which is less than the thickness D _A in Fig. 6 lies. In this case, the partition preferably abuts either the portions 8a or the portions 8b. In addition, the separator may also have a corrugated or serrated profile, and alternately abut the projections 8a and 8b.

As in Fig. 3 Here too, the surfaces 18a and 19a or 18b and 19b have a smaller extension in the longitudinal direction I of the bottom device than the corresponding surfaces 8b and 8a. The reason for this is that the sections 8b are designed such that they adapt to the narrowed central region 45 of the respective flat tubes and therefore the distance between the individual surfaces 8a and the surfaces 8b is adapted to the thickness of the flow devices in the central region 45. Also in this embodiment, the bottom portion 9 is at a higher level than the respective sections 11.

Fig. 7 shows another view of the in Fig. 6 shown embodiment of the bottom device. As it turned out Fig. 7 results, the ground device is symmetrical with respect to a geometric plane, which preferably extends centrally with respect to the (not shown) partition wall.

Fig. 8 shows a bottom view of the in Fig. 7 shown embodiment. The bulges of the support means 11 serve to increase the stability of the ground facility. The collars 5 are also used in this embodiment to achieve a secure fit with the pushed through the respective openings 3 flow tubes. In a preferred embodiment, the respective flow tubes (not shown) or their end portions may be at least partially folded around the collars 5, so as to promote the mutual grip.

In all of the above-mentioned embodiments, a flux or soldering medium applied to the bottom portions 9 and the side portions 8a and 8b of the projections 7a, 7b, respectively, may flow out during the manufacturing process and does not accumulate within a closed area. While at the in FIGS. 3 to 5 In the embodiment shown, the medium can flow away both in the direction of the openings 3 and 4 and in the directions opposite to the respective projections FIGS. 6 to 8 shown embodiment, the medium substantially only in the direction of the respective openings 3 and 4 drain.

In the Fig. 9 shown embodiment of the ground device according to the invention is similar to the in Fig. 3 shown embodiment. In addition, in the case of this embodiment, auxiliary projections 12a and 12b are provided, with the aid of which insertion of the partition wall is facilitated. For this purpose, the partition preferably has tongues or end regions (not shown) adjacent the openings or slots 32, the shape of which takes into account the projections 12a and 12b. Instead of this embodiment, however, only the respective longitudinal auxiliary projections 12a or only the respective right-side auxiliary projections 12b could be provided. It would also be possible to arrange auxiliary projections 12a and 1b in each case alternately on the individual bottom sections 9.

The auxiliary projections 12a and 12b have surfaces 22a which is inclined with respect to the bottom surface 9 at a predetermined angle. This angle is between 0 and 90 °, preferably between 10 and 70 ° and particularly preferably between 20 and 50 °. In this embodiment, the individual auxiliary projections substantially close with the respective collars 5. However, the projections may also be higher in height level than the collars 5 or the level of the collars 5 do not reach.

The advantage of the auxiliary projections 12a or 12b is to achieve additional stability when inserting the partition walls. In a further preferred embodiment, it would also be possible in each case to bring together an auxiliary projection 12a and an auxiliary projection 12b in such a way that they touch each other. In this case, however, the partition would preferably have a corresponding notch (not shown).

Also in this embodiment, the ends of the collars 5 are preferably arranged below the plane of the bottom device, that is to say the plane of the section 9.

In Fig. 10 is another view of the embodiment of the ground device Fig. 9 shown. It can be seen that the auxiliary projections 12a and 12b do not quite reach the height level of the projections 7b in terms of their height. However, this is not necessary, it would also be possible for the auxiliary projections to be higher than the main projections 7b or at the same level. In the embodiment shown here, the highest level is that of the projections 7b, followed by the level of the auxiliary projections 12a, 12b and the collars 5 and finally the lowest level that of the depressions 11th

The distance D _A in this embodiment also substantially corresponds to the distances shown in the previous embodiments. In this embodiment, the soldering medium may preferably flow out to the side at which no projection 7a or 7b is disposed. In addition, the auxiliary projections 12a, 12b may also be arranged such that a gap remains between the auxiliary projections and the relevant section 7a and 7b, through which a liquid connection means can pass.

Fig. 11 shows a rear view of the in the FIGS. 9 and 10 shown embodiment. In particular, the auxiliary devices 12b can be seen here as well, whereas the auxiliary devices 12a can be found on the respectively opposite side.

In the Fig. 12 shown further embodiment of the bottom device according to the invention is similar to the in Fig. 6 shown embodiment. However, even in the case of in Fig. 12 shown embodiment auxiliary projections 12a and 12b provided, which facilitate insertion of the partition wall. Due to the lower level of the auxiliary projections 12a and 12b compared to the projections 7a and 7b, a medium, such as flux, can also flow away in the direction of the openings 4 during the manufacturing process. In addition, columns may also be provided between the sections 8a, 8b, on the one hand, and the auxiliary projections, on the other hand, allowing a passage of a flux.

Fig. 13 shows another view of the in Fig. 12 shown embodiment. Again, the auxiliary projections 12a and 12b are provided. Also, in this embodiment, the bottom portion 9 and the collars 5 are at a different height level, more specifically, the portion 9 is higher than the ends of the collars. 5

In Fig. 14 is a rear view of the in the FIGS. 12 to 13 shown embodiment shown. Also in this case, it can be seen that the respective projections on the rear side approximately take the shape of a U. The auxiliary projections 12a and 12b are also shown in this case with the slope shown above the bottom portion.

The areas 11 also have in the side view of this figure the shape of an inverted U, wherein a side surface of the portion 11 is substantially parallel to the bottom portion 9 and another portion 11 b or 11a thereto is arranged at a predetermined angle. This angle is between 0 and 90 °, preferably between 20 and 70 ° and particularly preferably between 30 and 60 °.

Fig. 15a shows a cross-sectional view of a ground device according to the prior art. In this bottom device, a groove 38 is provided, in which the (not shown) partition wall is inserted. The reference numeral 28 refers to a flux or solder which is applied to the ground device. In this case, the groove 38 is also completed in the sheet level in the prior art. As a result, the flux collects on the bottom of the groove and the subsequently inserted dividing wall may no longer reach the bottom of the groove. In addition, the thickness of the flux on the side wall 38a of the groove 38 may vary widely, which may cause jointing problems.

Fig. 15b schematically shows a cross section of a bottom device according to the invention. Due to the one-sided stage 7, the flux can flow off laterally, so that an approximately constant flux density is formed. In this way it is possible to get a better grip on the joining problems.

At the in Fig. 15b In the embodiment shown, the step has a section 8a which is substantially perpendicular to the bottom section 9. However, the angle can also be chosen differently, for example, the partition wall in the lower region have a tapered portion which adapts to such a slope. The portion 18 of the projection 7 is substantially parallel to the bottom portion 9. The portion 19 is disposed opposite to the portion 18 angled. The angle is in this case between 0 and 90 °, preferably between 20 and 70 ° and particularly preferably between 40 ° and 60 °. The reference numeral 27 denotes lateral edges provided on the bottom means, which serve for connection to a lid device (not shown). In Fig. 15c a further embodiment of a ground device according to the invention is shown. Here, the projection has substantially the shape of an open rectangle, that is, the portion 19 and the portion 8a are substantially parallel to each other. In the preferred manufacturing method, it is possible to place the partition on the portion 8a, the partition being pressed by the action of gravity on the portion 8a. Furthermore, the partition wall is pressed against the portion 9 by a tension with a cover device (not shown). Subsequently, the so pre-stabilized collection and / or distribution device can be soldered.

In Fig. 15d schematically a plan view of the ground device according to the invention is shown. Here, the reference numerals 42 refer to end portions of the flow-through means 40 pushed through the bottom means. Reference numerals 7a and 7b here also refer to mutually-arranged projections each exerting a force represented by F on the partition wall 30. In this case, by the alternating projections 7a, 7b, the partition wall is stabilized against the ground means. At the same time, however, can be one-sided Arranged stage drain a flux to the respective side of an existing stage opposite side.

Fig. 16 shows a further embodiment of a bottom device according to the invention. In a rear view, that is, the flow-through devices are inserted in this representation in the direction in the leaf level. In this case, mutual steps 7a and 7b are provided and auxiliary projections 12a and 12b, which facilitate insertion of the partition wall. Also, in this embodiment, the constricted region 4 can be easily seen, which is adapted to the region 45 of the flow-through device. Reference numerals 15 refer to an edge region of the bottom device and reference numeral 16 to a tab which serves to connect the cover device (not shown). Similarly, the tabs 14 of the connection with a cover device.

In Fig. 17 a further embodiment of a bottom device according to the invention is shown in this case with a one-sided stage 7a. As in the Fig. 16 In the embodiment shown, the flux can flow off laterally into the regions 11 during production, so that accumulation of the flux in the region of the bottom section 9 can be prevented in this way. The openings 3 are, as illustrated above, through openings which have a strongly narrowed cross section in the intermediate area 4. It would also be possible to completely close the intermediate region 4, but in this case the flow devices would have to have a corresponding cutout in this region. Also in this embodiment, two tabs 14 and an edge region 15 and a further tab 16 are provided, which serve for connection to a lid (not shown).

Fig. 18 shows a further embodiment of the bottom device 1 of the device according to the invention for the exchange of heat in a perspective view from above. The bottom device 1 has passage openings 3 of the collars 5 are included. The collars 5 are connected by means of bevels 6 with a base 13 de r bottom device 1. Approximately centrally transversely to the passage openings for receiving corresponding, not shown flat tubes of the bottom portion 9 is shown with the projections 7a, 7b for receiving the partition. At the outer ends of the collars of the through openings, a gap 11 is arranged in each case. The through holes 3, collars 5 with gap 11 can be produced by a combined tear and punching process.

Fig. 19 shows the bottom device 1 of Fig. 18 from below, ie in backward view. In addition to the passage openings 3, the bottom section 9 with the projections 7a, 7b, the narrowed areas 4 of the passage openings 3 can be seen.

FIGS. 20 and 21 correspond to the FIGS. 18 and 19 in a further perspective view. For explanation, reference is therefore made to the preceding description of FIGS. 18 and 19 directed.

Fig. 22 shows the inventive device for exchanging heat using the ground device of Fig. 18 , Flat tubes or throughflow devices 40 with flow chambers 46 and 48 and the narrowed region are inserted into the bottom device 1 through the passage openings 3 with their narrowed region 4. In the bottom section 9, a partition 30 is introduced with slots 32, which serves for a separation of the flow flow.

Fig. 23 shows the device after Fig. 22 consisting of ground device 1, a plurality of introduced flow devices 40 and a partition wall 30th

Fig. 24 shows a section perpendicular to the introduced partition wall 30 through the bottom device 1 of Fig. 18 wherein the section through a slot 32 of the partition 30 and thus along the passage opening 3 extends.

Fig. 25 shows a further section perpendicular to the introduced partition 30 through the bottom device 1 of Fig. 18 wherein the section through a portion of the partition wall 30 without slot and thus does not extend along a through hole, so that the base 13 of the bottom device 1 can be seen.

Fig. 26 shows a further embodiment of a bottom device 1 with through holes 5, which are comprised of collars 5 which are arranged on slopes 6, wherein the bevels 6 provide the connection to the base 13 of the ground device. Analogous to the ground facility of Fig. 18 is a substantially perpendicular to the through holes 3 extending bottom portion 9 with opposing projections 7a, 7b provided, which serves to receive a partition wall, not shown. In contrast to the embodiment of Fig. 18 is another, perpendicular to the bottom portion 9 extending receiving portion 34 is provided, the guide surfaces 35a, 35b, 35c, and 35d, which are perpendicular to the plane of the bottom device. By means of the receiving section 34 and the guide surface 35a, 35b, 35c, 35d, a further partition wall can be introduced into the base device 1, whereby a fourfold subdivision of the flow flow is possible.

Fig. 27 shows the bottom device 1 of Fig. 26 in rear view It can be seen that the intersection of the two receiving portions 9 and 34 in the rear view in the shape of a cross 36 have.

Fig. 28 shows an embodiment of the device according to the invention for the exchange of heat in an exploded view with a bottom device. 1 according to Fig. 26 , another partition wall 31 and a plurality of flow devices 40. The further partition wall 31 extends in the direction of the elongated passage openings 3 and leads to a flow separation into two areas, if only this further partition wall 31 is used. If a corresponding "first" dividing wall 30, not shown, is introduced into the bottom section 9, a quadruple division is effected.

Fig. 29 shows the embodiment of the inventive device for exchanging heat of Fig. 28 in exploded view in rear view with a ground device 1 according to Fig. 26 another divider wall 31 and a plurality of throughflow devices 40. The cross 36, which is arranged approximately centrally in the bottom device 1, can be seen, so that a partition wall can be used, which extends either in the direction perpendicular or in the direction parallel to the passage openings 3.

Fig. 30 indicates the device for exchanging heat Fig. 28 in assembled state with partition 31, bottom device 1 and a plurality of flat tubes 40th

Fig. 31 Finally, FIG. 1 shows a cross section through a bottom device 1 provided with a further partition wall 31 along the bottom section 9 of FIG Fig. 26 so that the narrowed portions 4 of the through holes 3 in the base 13 can be seen.

Claims (44)

1. An apparatus for exchanging heat, in particular for a motor vehicle, comprising at least one first collecting and/or distributing device for at least one flowable medium, the collecting and/or distributing device being connected to a plurality of throughflow devices (40) through which the medium flows at least in sections, and the collecting and/or distributing device having at least one bottom device (1), a cover device and a separating device (30), which divides the collecting and/or distributing device into at least two partial spaces, the bottom device having at least one projection (7a, 7b), which protrudes inward with respect to the collecting and/or distributing device from a predefined plane of the bottom device, and at least one section of the separating device is in at least indirect contact with at least one side face of the projection and with at least one section of the plane of the bottom device, characterized in that the bottom device comprises a base (13), wherein the height level of the base is reduced with respect to the height level (N2) of the predefined plane and the at least one inwardly protruding projection is formed by at least one side face (8a, 8b), which forms a substantially right angle with the plane of the bottom device, and the separating device is arranged at said right angle, and a surface (7a, 7b), which runs substantially parallel to the plane of the bottom device, and a surface area, which runs substantially obliquely at a predetermined angle with respect to the plane of the base device and connects the base (13) to the surface (7a, 7b).
2. An apparatus as claimed in at least one of the preceding claims, characterized in that a plurality of inwardly protruding projections are provided.
3. An apparatus as claimed in at least one of the preceding claims, characterized in that the plurality of inwardly protruding projections are arranged substantially in a straight line.
4. The apparatus as claimed in claim 3, characterized in tat those side faces of the projections which are in contact with the separating device are arranged substantially in a plane.
5. An apparatus as claimed in at least one of the preceding claims, characterised in that the plane in which the side faces of the projections are arranged are substantially perpendicular to the plane of the bottom device.
6. An apparatus as claimed in at least one of the preceding claims, characterized in that the plurality of projections are arranged so as to be alternately laterally offset relative to one another with respect to a transverse direction of the collecting and/or distributing device.
7. An apparatus as claimed in at least one of the preceding claims, characterized in that the side faces of those projections which are alternately laterally offset relative to one another and are in contact with the separating device are situated obliquely opposite of one another at a predefined angle.
8. An apparatus as claimed in at least one of the preceding claims, characterized in that the separating device is arranged between the projections which are arranged offset relative to one another in each case.
9. An apparatus as claimed is at least one of the preceding claims, characterized in that the separating device has a thickness of 0.2 mm - 5 mm, preferably between 0.4 mm and 2 mm, and particularly from 0.8 mm - 1.2 mm.
10. An apparatus as claimed in at least one of the preceding claims, characterized in that the inwardly protruding projections have a height between 0.2 mm and 5 mm, preferably between 0.4 mm and 2 mm, and particularly preferably between 0.8 mm and 1.2 mm.
11. An apparatus as claimed in at least one of the preceding claims, characterized in that the inwardly protruding sections extend substantially continuously in the longitudinal direction of the bottom device.
12. An apparatus as claimed in at least one of the preceding claims, characterized in that the separating device is in at least indirect contact with at least one side face of all the inwardly protruding sections.
13. An apparatus as claimed in at least one of the preceding claims, characterized in that a connecting medium is provided in a contact region between the bottom device and the separating device.
14. An apparatus as claimed in at least one of the preceding claims, characterized in that the connecting medium is selected from a group of connecting media which includes solders, flux and the like.
15. An apparatus as claimed in at least one of the preceding claims, characterized in that the separating device is embodied as a separating wall.
16. An apparatus as claimed in at least one of the preceding claims, characterized in that the bottom device has a plurality of passage openings.
17. An apparatus as claimed in at least one of the preceding claims, characterized in that the plurality of passage openings have a substantially oblong hole-like profile.
18. An apparatus as claimed in at least one of the preceding claims, characterized in that the passage openings have flanges through which the throughflow devices are inserted.
19. An apparatus as claimed in at least one of the preceding claims, characterized in that the flanges point inward with respect to the collecting and/or distributing device.
20. An apparatus as claimed in at least one of the preceding claims, characterized in that the ends of the flanges are arranged at a level which differs from the plane of the bottom device.
21. An apparatus as claimed in at least one of the preceding claims, characterized in that the plane of the bottom device is arranged higher than the level of the ends of the flanges.
22. An apparatus as claimed in at least one of the preceding claims, characterized in that the plane defined by the separating device substantially represents a plane of symmetry of the bottom device.
23. An apparatus as claimed in at least one of the preceding claims, characterized in that the length of the bottom device exceeds the length of the separating device.
24. An apparatus as claimed in at least one of the preceding claims, characterized in that a plurality of throughflow devices having a substantially flat tube-like cross-section are inserted into the plurality of passage openings.
25. An apparatus as claimed in at least one of the preceding claims" characterized in that that side face of the inwardly protruding projections which is in contact with the separating device is larger than that section of the bottom device which is in contact with the separating device.
26. An apparatus as claimed in at least one of the preceding claims, characterized in that that section of the bottom device which is in contact with the separating device is wider than the thickness of the separating device.
27. An apparatus as claimed in at least one of the preceding claims, characterized in that a plurality of support devices are provided, which project relative to a base area of the bottom device.
28. An apparatus as claimed in at least one of the preceding claims, characterized in that the support devices are arranged substantially between the passage openings.
29. An apparatus as claimed in at least one of the preceding claims, characterized in that at least some of the support devices merge into the projections.
30. An apparatus as claimed in at least one of the preceding claims, characterized in that the bottom device has a projecting peripheral edge.
31. An apparatus as claimed in at least one of the preceding claims, characterized in that the bottom device has at least one lug, preferably a plurality of lugs, on the periphery.
32. An apparatus as claimed in any one of claims 17 to 31, characterized in that the separating device runs parallel to the passage openings.
33. The apparatus as claimed in claim 32, characterized in that the separating device is arranged in a holding section, which has guide surfaces.
34. A method for producing an apparatus for exchanging heat according to at least one of claims 1 to 33, comprising the following method steps:

    - producing a bottom device (1) having a base (13) and having at least one projection protruding inwardly from a predefined plane of the bottom device, wherein the height level of the base (13) is reduced with respect to the height level (N2) of the predefined plane;

    - applying at least one connecting medium to at least one side face of the projection, and to ant least one section of the bottom device that adjoins the side face of the projection;

    - arranging the separating device on the bottom device, wherein the separating device is in at least indirect contact with the bottom device and the side face of the projection.
35. The method as claimed in claim 34, characterized in that at least one inwardly protruding projection is generated by machining the bottom device, the machining operation being selected from a group of machining operations which includes punching, deep-drawing and the like.
36. A method as claimed in at least one of the preceding claims, characterized in that a plurality of inwardly protruding projections are generated.
37. A method as claimed in at least one of the preceding claims, characterized in that that section of the bottom device which adjoins the inwardly protruding projection runs substantially in the plane of the bottom device.
38. A method as claimed in at least one of the preceding claims, characterized in that at least one support device is generated in the bottom device.
39. A method as claimed in at least one of the preceding claims, characterised in that at least one support device is generated such that it merges into at least one inwardly protruding projection.
40. A method as claimed in at least one of the preceding claims, characterized in that a plurality of passage openings are punched into the bottom device.
41. A method is claimed in at least one of the preceding claims, characterized in that a flat tube-like through-flow device is at least partially inserted into each passage opening, and a positive and/or bonded and/or non-positive connection is generated between the bottom device and each throughflow device.
42. A method as claimed in at least one of the preceding claims, characterized in that a non-positive, positive and/or bonded connection is generated between the bottom device and the plurality of throughflow devices by means of a method selected from a group of methods which includes soldering, brazing, welding and the like, and combinations of said methods.
43. A method as claimed in at least one of the preceding claims characterized in that the separating device is pressed with a predefined force both against at least one side face of the projection and against the section or the bottom device.
44. A method as claimed in at: least one of the preceding claims, characterized in that edges surrounding the bottom device are generated by a further method step.

Images