DE10353160A1 - Heat exchanger and sump / dryer assembly for heat exchangers - Google Patents

Abstract

The invention relates to a sump dryer assembly for a refrigerant condenser of an automotive air conditioning system, comprising a collecting container and a dryer accommodated therein replaceable dryer, wherein the sump has a circumferential wall extending about its longitudinal axis, at least in a longitudinal axis extending portion of a wherein the collecting container has at least one inlet opening for a refrigerant and at least one outlet opening for the refrigerant and wherein the outlet opening is arranged in the end region facing the first axial end of the collecting container and wherein the collecting container at its second, the first axial facing away End has a removal opening for the replacement of the dryer and a releasable closure for this removal opening in the region of the second end is provided, wherein on the side facing away from the first end of the first n pipe an adapter device or a first profile piece is provided for the releasable closure, on which or on which the releasable closure is held in its closed position.

Description

The This invention relates to a sump dryer assembly for heat exchangers, and in particular for a refrigerant condenser a motor vehicle air conditioning and a heat exchanger.

Collection drier modules for example Refrigerant condensers of a motor vehicle air conditioning used. They are, especially in this area, as Condenser modules refer to and have a collection container, which receives a dryer. Such a dryer can, for example have a dryer cartridge and a filter that also to a Assembly can be summarized.

capacitors for one Air conditioning systems are i.d.R. a tube-and-fins block on whose tubes are connected at their two ends in each case to a manifold. Parallel and adjacent to one of these manifolds is a Collecting container arranged. This collection container is over at least two overflow openings fluidly connected to the adjacent manifold, wherein via a this overflow fluid, ie in particular refrigerants, from the manifold into the sump can flow, and over the others of the overflow openings Fluid or refrigerant from the collection container into the manifold.

In Motor vehicles such capacitors are usually installed so that the headers and the sump substantially vertically are aligned. The overflow opening, by which fluid or refrigerant from the collection container into which a collecting pipe flows or a corresponding outlet opening of the collecting container is usually in the lower part of the collection container positioned. This has in particular the reason that thereby the Probability is reduced or it is avoided that any gaseous Shares of the collection container located Fluids or refrigerant from the outlet of the collection container be discharged.

From the DE 197 05 720 A1 a condenser for an air conditioning system of a motor vehicle is known, in which a tubular, extruded profile for forming the collector and a half-shell of a manifold is provided. Another, separate half shell, which is integrally formed on the half shell of the extruded profile, complements the shell wall of the manifold. In this further manufactured separately from the extruded profile half-shell of the manifold tube ends of the tube-fin block are added. This half-shell facing the tube-rib block is also referred to as the bottom, while the opposite half-shell is referred to as the lid. In such extruded collecting containers with integrated lid, the collecting container usually has a constant wall thickness over its entire length. Due to the direct extruded connection between the cover of the collecting tube and the collecting container, direct heat conduction between the collecting tube and the collecting container is generally provided.

From the EP 131 07 48 A2 a refrigerant condenser for a motor vehicle air conditioner is known, in which the jacket wall of the collector or collecting container is formed by a tube and an integrally formed at the bottom of this tube extruded tube piece. This pipe section has in its jacket wall two holes into which corresponding collar of the adjacent manifold engage in the clamping seat, wherein a fluid connection is provided which allows the entry of refrigerant into the reservoir and the escape of refrigerant from the reservoir. At the upper end of the sump is closed by a depressed lid on which a cap-like extension piece is arranged, that surrounds the upper end of the adjacent header and this closes the top. By means of this cover and the clamping seat arranged in the lower region collecting container and the manifold are held before soldering, wherein in each case a solder joint is created during soldering in these areas, so that the collecting container and the adjacent manifold is firmly closed at its upper end. At the bottom of the sump is closed by a stopper.

From the EP 0 936 423 A2 a condenser is known in which the jacket wall of the collecting container is formed by a continuous one-piece hollow cylindrical tube. The tube has a substantially constant wall thickness and is closed at its upper end with a threaded cover.

Of the Invention is based on the object, a sump dryer assembly for heat exchangers to provide that can be produced inexpensively and is reliable.

According to the invention is a Header dryer assembly according to claim 1 proposed and a heat exchanger according to claim 30. Preferred embodiments are in particular subject of the dependent claims.

According to the invention, in particular, a sump-dryer assembly for heat exchangers is provided which has a sump and a dryer. The dryer is interchangeably housed in the sump, So not so fixed that a non-destructive removal would be impossible. The collecting container has a jacket wall extending around its longitudinal axis. This jacket wall is at least in a portion, seen in the longitudinal direction of the collecting container, essentially formed by a first tube. Furthermore, the collecting container has at least one inlet opening for a fluid, such as refrigerant, and an outlet opening for the fluid. At least the outlet opening is arranged in an end region facing the first axial end of the collecting container. The inlet opening can likewise be arranged in this end region facing the first axial end of the collecting container, or in another region of the collecting container, such as, in particular, an end region arranged opposite the second, the first, opposite end. The inlet opening and the outlet opening are preferably each arranged in the jacket wall of the collecting container. At its second, the first axial end facing away from the collecting container on a removal or exchange opening for the replacement of the dryer. Through this removal opening, the dryer can be removed and a (new) dryer can be used. Furthermore, the collecting container has a releasable closure for this removal opening. The releasable closure is provided in the region of the second end. In particular, by means of this releasable closure, the removal opening can be closed and opened. The closure may be releasable such that it is no longer held in its open position on the collecting container or so that it is still held in its open position on the collecting container, but the discharge opening is free. On the side facing away from the first end of the first tube, an adapter device or a first profile piece is provided, by means of which or by means of which the releasable closure is held or supported in its closed position.

This Holding or supporting may for example be such that the releasable closure immediately engages in the adapter device or the first profile piece, such as over a thread pairing, or so that it is via intermediate holding elements, such as a snap ring on the adapter device or the first profile piece, in particular form-fitting, supported or held.

It can be provided that the closure in his shot Position blocking retaining element must be solved before the shutter open can be, with such a retaining element, for example, a retaining ring can be.

Preferably the shutter is held in the axial direction.

The dryer can for example have a dryer cartridge and a filter or be formed by these. A filter may be combined with such a dryer cartridge in an assembly, or may be separate from such a dryer cartridge. In particular, a dryer may be a dryer / filter cartridge. With regard to exemplary and preferred inventive designs of such dryer cartridges or dryer / filter cartridges is on the DE 103 06 192 A1 by the Applicant, which is hereby incorporated by reference herein. The dryer part of this dryer serves to extract moisture, in particular water, from the fluid or refrigerant. By way of example, particles which are in the fluid or refrigerant, for example due to abrasion or the like, can be filtered out by the filter.

The exchangeable dryers, especially dryer cartridge and filter or Filter / dryer cartridge, is preferably in the context of manufacturing a soldering in a soldering oven in the collection container inserted.

It can also be provided that a solderable dryer, in particular with a solderable dryer part and a solderable one Filter part is provided. A solderable dryer is particular so that he is in a soldering oven not destroyed or damaged becomes.

Of the Closure can be, for example, a plug or screw cap be.

The second end of the collection container is, in particular if this example, in a refrigerant condenser integrated into a motor vehicle air conditioning and in a motor vehicle is fitted that upper end, so that the detachable closure at the top collecting end attached or recorded.

The first profile piece is preferably attached to the first tube of the collecting container and soldered to it. The first tube can be made in one piece or in one piece or be connected from a number of separately manufactured parts to form a one-piece tube. For example, it can be provided that it is composed of several, in particular two, half-pipe profiles or welded or soldered. It can therefore be given for example a parting plane in the longitudinal direction of the tube. Preferably, the first tube is cylindrical. But it can also have a different cross-sectional shape. Preferably, the adapter device or the first profile piece is designed tubular or annular. The adapter device can be, for example, an adapter ring. Also, the first profile piece may be an adapter device. In a preferred Ge The first profile piece adjoins the first tube in such a way that the first profile piece itself forms on the lateral wall section of the collecting container which adjoins the lateral wall section formed by the first tube. The adapter device or the first profile piece are, in particular, parts or devices which are manufactured separately from the first tube. With particular preference, they are firmly connected to the first tube, as already mentioned. Such a solid connection can be produced, for example, via a welded or soldered joint. It is particularly preferred that the connection is tight. The wall thickness of the preferably tubular first profile piece is at least partially larger in an advantageous design than the wall thickness of the first tube. In a preferred embodiment, the first tube has a constant wall thickness, seen in particular in the circumferential direction and seen in the longitudinal direction. The inner surface of the first profile piece is in a preferred development sections or completely - seen in cross section - substantially circular. The first profile piece can, viewed at various points along its longitudinal axis, have different (inner) circumferential dimensions, that is, circumferential dimensions of its inner surface. It can be provided, for example, that heels or bevels - seen in the longitudinal direction - are provided. In particular, with round or in cross-section considered circular inner surface so different diameters can be given.

The first pipe is preferably a welded tube of semi-finished material.

In a preferred embodiment, the closure is completely recessed in its closed position in the first profile piece. In a preferred embodiment of the invention, the first profile piece has at least one groove, in particular circumferential groove, for receiving a securing ring. This groove can be arranged in an inner surface of the first profile piece. It can be provided that in such a groove, a securing ring is detachably received, by means of which the closure element can be releasably held in a closed position. In particular, in this case, the closure may be a stopper. A detachable closure connection of the collecting container can thus be realized, for example, by means of a stopper with securing ring. It can also be provided that a releasable closure connection is realized by means of a threaded plug or screw cap. For this purpose, this threaded plug or screw cap can carry a thread which is screwed into a counter-thread carried by the first profile piece for closing. It can be provided that the screw cap carries an internal thread and the first profile piece has an external thread, or that the screw cap carries an external thread and the first profile piece has a corresponding internal thread. Preferably, at least one sealing device is provided. A sealing device is particularly preferably provided for sealing the releasably held closure relative to the first profile piece or the adapter device. For example, for this purpose, one or more circumferential grooves may be provided in the closure element, in each of which an O-ring is received. In particular, in such a design is preferably provided that the first profile piece has a sealing surface for this or these O-rings. It can also be provided that such a sealing surface or contact surface for the or the O-rings is formed by a surface region of the first tube. In such a design is advantageous if care is taken that the corresponding sealing surface is provided with a corresponding tolerance range. The sealing surface may in particular be a section of the inner surface of the first profile piece or of the first tube, it being particularly important with respect to the first tube that - especially in the case of a round (inner) design - the inner diameter has correspondingly narrow tolerances. If such a sealing surface is formed by a surface portion of the first tube, the first profile piece may be designed correspondingly smaller or shorter. In particular, it may be provided in a preferred embodiment that the first profile piece only includes a groove for receiving a securing ring or by this the connection with the pipe is formed. In a preferred embodiment, the first profile piece is round. As a result, under certain conditions, the use of materials can be kept low, and a simple processing can be made possible. However, the first profile piece may also have other shapes. The first profile piece may in particular also have any outer contour. Such an outer contour can for example also be such that a contact surface is created to a manifold. It can also be provided that the outer contour of the first profile piece is additionally or alternatively designed so that a contact surface is formed into a holder. Such a holder may for example be a ring holder. Such a holder or ring holder can serve, for example, to hold a collecting pipe to the collecting container. This can for example be such that at least by means of such a holder a collecting tube is clamped or held in a similar manner to the collecting container, wherein in the manufacture in a soldering oven then additionally a soldering between collecting container and holder and / or holder and manifold is generated. Advantageously, therefore, a positioning of the collecting container to the collecting tube can be generated via such a holder, which can be designed in particular as a ring holder be made particularly fixed by a soldering process then fixed or non-releasable.

In In a preferred embodiment, the first profile piece is short educated. In particular, it can be provided that the first profile piece - in the direction the longitudinal axis of the collection container seen - relatively short is formed compared to the first tube. It can be provided be that the first profile piece in the direction of this longitudinal axis shorter is formed as in a direction perpendicular thereto. But it can also be provided that the first profile piece in the direction the longitudinal axis longer is formed as in a direction perpendicular thereto.

Preferably is the first profile piece designed around.

Especially It is preferably provided that the wall thickness of the first profile piece is greater than is the wall thickness of the first tube. There may also be fluctuations in the Wall thickness of the first profile piece be provided.

In Particularly preferred design is provided that the first profile piece a thread for receiving a thread provided in the closure or with a groove for receiving a securing ring, by means of which the closure is detachable can be held, wherein the residual wall thickness in the range this thread or this groove is greater than or equal to the wall thickness of first pipe is. This is to be understood in particular that the Groove represents a recess provided in the wall or in the Threads one helical Well is provided, and in the region of these respective wells the remaining wall thickness larger or is equal to the wall thickness of the first tube.

In a preferred embodiment of the invention is the inlet opening for the fluid, the first collection container is provided, in the first axial end facing the end region arranged. But it can also be provided that this inlet opening another place, such as in particular facing away from the first axial end End area is positioned.

The inlet port and the outlet opening are arranged in a particularly advantageous design in the jacket wall of the collecting container. It is preferably provided that the collecting container has passages. These passages are more preferably so that they protrude outward. Limit the passages or define advantageously the inlet opening or the outlet opening.

It can also be provided that the sump protruding outward manifestations having a preferably annular outer contact surface. Limit such characteristics or preferably define the inlet opening and the outlet opening.

In a particularly preferred design are such forms or by trains provided on the first tube.

In A preferred embodiment of the invention is in the first End of the collection container facing end portion of this collection container provided a second profile piece. This second profile piece is in a preferred design an extruded profile piece.

This second profile piece In a preferred embodiment, the inlet opening and the outlet opening for fluid or for refrigerant of the collection container on. In a particularly preferred design, these inlet opening and this outlet as designed in the jacket wall of the second profile piece provided hole.

The second profile piece is preferably connected to the first tube, in particular directly. In particular, this compound can be a non-soluble one Connection, like solder connection or welded joint or the like.

The second profile piece can at its end facing away from the second end of the collecting container by means of a detachable one Closure, such as screw cap or plug or the like may be closed. This releasable closure can, for example be like the releasable closure, the first profile piece is arranged. In a corresponding manner, in the second profile piece a corresponding Thread or a groove for receiving a locking ring provided be. Furthermore, a suitable sealing device can be provided, which this closure for closing the second profile piece with respect to this second Pro filstück seals. It can also be done in Reference to the first profile piece or the local detachable Connection was described, a corresponding sealing surface on the second profile piece be provided. Furthermore, a corresponding groove for holding the releasable Closure on the second profile piece be provided.

It but can also be provided that the second profile piece at his the second end of the collection container opposite end closed by a non-releasable closure is. This can, for example, to form a sealing groove connection the collection container seal at its first end.

Preferably is in the collection container a filter device added. Such a filter device For example, with a dryer can form an assembly, such as for example, a dryer cartridge. Such an assembly will in the context of the present invention also referred to as a dryer.

According to the invention is further a heat exchanger proposed that a collection container-dryer assembly according to the invention having. Such a heat exchanger in particular, a refrigerant condenser for one Be automotive air conditioning.

In Preferred design, such a heat exchanger is a pipe or Tube-rib block on which a variety of at least in sections essentially parallel tubes and, in particular in the design having ribs arranged as a tube-and-fin block between the tubes. The respective first ends of the tubes of this block are thereby received by a first manifold, which is arranged parallel to the collecting container is. This first collecting pipe is arranged in particular adjacent to the collecting container and may be kept, for example, at this. The first collection pipe has at least two openings on, of which one of the inlet opening of the collecting container and one of the exit opening of the collection container is assigned, so that in each case an overflow opening or overflow formed become. For example, it may be provided that between the each associated openings additional Channel sections or the like are interposed. About these overflow openings or overflow can fluid or refrigerant from the first manifold flow into collection container or vice versa.

Especially Preferably, it is provided that further provides a second manifold which is the respective second ends of the tubes of the tube-rib block receives. In particular, in such a design with two manifolds can be provided that the or all tubes of the pipe or Tube-rib blocks are straight.

The Tubes of the tube or ribbed block preferably have theirs Frontal openings on, in the pipe inside about a channel are connected.

Prefers The second ends of the tubes of the tube or rib-block are in taken a second manifold, which is parallel to the first manifold is arranged.

The first manifold preferably has a cup-shaped cover part and a associated bowl-shaped Bottom part up. This cover part and this bottom part are for example soldered together or welded. The cover part and the bottom part are to form a shell wall the first manifold together. In the bottom part are openings, like slots, provided, the inclusion of the first pipe ends serve the pipe or tube-rib block.

One second manifold can, for example, a lid part and be composed of a bottom part, where there in the openings or slitting the bottom part of the second pipe ends of the tubes of the Tube or tube rib blocks are added.

In preferred design, the first manifold to the inside or outward protruding passages for the formation of openings on, preferably provided in the cover part and facing the sump are. From these passages is one of the entrance opening and one of the exit opening of the collecting assigned.

In preferred design are such passages of the first manifold telescopically with passages of the collection container inserted into each other, with overflow openings or overflow channels formed become. One of these overflow openings or overflow channels is used to that fluid or refrigerant from the first manifold into the reservoir can flow, and the other overflow or overflow serves causing the fluid from the sump into the first header stream can.

Instead of Such telescopically inserted passages can also the passages be designed so that passages of the collection container and passages of the first manifold with their outwardly directed end faces dull each other poking are arranged, wherein the respective abutting faces preferably are identically shaped and dimensioned. These faces can, for example circular ring be.

It can also be provided that such a with their faces together jerking passages of one common radially outside arranged sleeve are sheathed. Further, it can be provided that a sleeve radially inside of these abutting oneself by trains is positioned. Preferably, the mutually associated passages are interconnected soldered and / or in the presence of such a sleeve with the sleeve soldered. One such soldering process For example, in a soldering oven be made.

It can also be provided that the first manifold in education the openings, the entrance opening or the outlet opening the Sammelbe container are assigned to the outside having directed formations with a preferably annular outer contact surface.

Prefers is further that the first manifold protruding outward, respectively forming an opening Collar which in the inlet opening and the outlet opening of the collecting for the formation of overflow openings or overflow channels intervene. It can be provided in particular that the inlet opening or the exit opening each designed as a bore, and particularly preferably on the second profile piece of the collection container is arranged. Also in this area is preferably a connection provided, which is sealing. Particularly preferred is provided that also in this area a solder joint is given.

Prefers is further that the second profile piece a the first manifold facing outer surface area facing an outer surface area of the first manifold is conformed. This outer surface area of the second profile piece may be curved, for example. It is particularly preferred that these outer surface areas contact each other. The corresponding outer surface area of the manifold For example, it can be a cylinder segment.

Especially Preferably, it is provided that the overflow or overflow according to a the variants are formed, which in the German patent application 103 38 527.4, to which reference is made in this regard and is made the subject of the local revelation. Also there explained Connection between the first manifold and the collecting container can be given in a preferred design, so that also in this regard German Patent Application 103 38 527.4 reference is made and the designs be made the subject of the local revelation. This refers in particular also to the steps for the production the connection, and in particular in the region of the overflow or overflow.

It should be noted However, that is there at the top of the collection container or the common tube provided common cover of the present here Invention can not be provided, as the local, the collection above covering portion of this cover is not solvable.

In however, a ring holder may be provided in a preferred design be covering the upper end of the first manifold, for example in the manner of the German patent application 103 38 527.4, in this regard to Subject of the present disclosure is made, and a annular or annular section-shaped Has area that orbits the collector in whole or in part.

As addressed, the sump can in its, the first axial end facing the end, the lower End region, have an extruded profile. It can with to the manifold side directed bores be provided, in which passages of the manifold for the formation of overflow openings or overflow channels are joined. This second profile piece or profile can be connected to the first tube of the collecting container, which in turn is attached at its upper end and soldered first profile piece can have.

in the Area of the lower end and the first axial end can in the second profile piece, like mentioned, a detachable one Shutter to be seen. In a preferred design, one of this covered opening Be such that the dryer is not just taken up can, but in addition can be taken down.

In preferred design of the collecting container and the first manifold held together, passing over a slot are spaced.

The second extruded profile and the design of the overflow or overflow can be, for example, as it is in the EP 131 07 48 , which is hereby incorporated by reference into the subject matter of the present invention, is described. This is a preferred embodiment of the invention.

Of the Clippings can be any length exhibit. For example, it can be shorter than one or both sides be the first manifold. It can also be longer than one or both sides be the first manifold. He can also have the same length, like the first manifold.

The first profile piece is preferably an extrusion part. It can be provided that the first profile part and / or the second profile part a contact surface for Having the first manifold or the lid of the first manifold. It can also be provided that the first profile part and / or the second profile part has extruded holders.

In a particularly preferred embodiment, the wall thickness of the first tube is designed so that it can withstand the bursting pressures or pressures which occur in operation in the collecting container. It can also be provided that a certain, for example, small wall thickness surcharge is given.

Especially It is preferably provided that the first profile part and / or the second profile part has a wall thickness greater than is the wall thickness of the first tube.

Thereby, that a detachable one Closure at the upper end of the collection container or at the second end of the collection container is provided is allowed that a replaceable dryer through which through this closure covered opening can be removed or can be used, or replaced can be. The replacement at the top is often beneficial because heat exchangers often be installed so that the upper end is more accessible. Due to the fact that in the upper end region or at the second end region of the collecting an adapter or a profile piece for one releasable Closure is provided is not in a preferred design only allows that a dryer exchanged by an opening arranged in the upper area but it gets beyond that a basis for a variety of cost and weight reduced designs laid. Thus, this allows, for example, that the jacket wall of the collector over wide areas relatively thin-walled is formed, while withstanding the pressures occurring in the collecting container or bursting pressures can, in addition in the region of the upper and second end of the collecting container releasable Closure can be arranged in its closed position essentially kept safe. For example, in the first or in the upper end region arranged profile piece or the adapter device a thread or grooves for receiving retaining rings or similar Wells are introduced without the collection container along his entire length must be trained thick-walled accordingly. So it can be made possible that the collecting container, For example, in the region of the first tube, so thin-walled is formed, that on the one hand the occurring during operation To press or bursting withstands in the collecting container, this but would no longer be sufficiently secured, if there are the grooves or Thread for one solvable Closing element would be arranged. In preferred development is thus made possible that the adapter or the first profile piece is formed in a correspondingly thick wall thickness, the Provide such recess, such as grooves, threads and the like allows without critical wall thicknesses be achieved.

in the The following are exemplary configurations with reference to the figures explained However, the invention is not limited thereby should.

It shows:

1 a partially illustrated inventive heat exchanger 1 with an exemplary collection container according to the invention;

2 the upper section 1 in enlarged, partially cut-open form;

3 a lower section of the design according to 1 in enlarged, partially cut-open form;

4 a sectional view through the design according to 2 in partial view;

5 a lower end of a collector and a first manifold in partial, unfolded representation;

6 another exemplary design of the upper section 1 ; and

7 another exemplary design for the lower section 1 ,

1 shows an exemplary heat exchanger according to the invention 1 with an exemplary, inventive collection container 10 or with an exemplary collection container-dryer assembly according to the invention in a schematic, partial view.

The heat exchanger 1 points the collection container (collector) 10 , a first manifold 12 and a second, not shown manifold and a tube-rib block 14 on. The tube-rib block 14 has a plurality of parallel tubes 16 on, which are designed for example as flat tubes, extending straight and with their respective first end in the first manifold 12 be recorded. For this purpose, facing the tube-rib block, designed as slots openings in the first manifold 12 provided, which receive these pipe ends. The pipe ends may possibly slightly into the manifold 12 protrude. The second, in 1 not shown ends of the tubes 16 of the tube and rib block 14 are correspondingly taken up by the second collection tube, not shown, so that over the pipes 16 each a flow connection between the first manifold 12 and the second manifold is given.

In Preferred embodiment of the invention for a refrigerant condenser for a motor vehicle air conditioning used or used.

At the same time the pipes become 16 traversed by refrigerant, allowing a refrigerant connection through the pipes 16 between the first manifold 12 and the second manifold is given. It can be provided that in the collecting pipes a plurality of perpendicular to the longitudinal axis separating partition walls are drawn, so that the refrigerant serpentine through the tubes 16 and the two headers is routed. In this case, for example, it can also be provided that in each case a plurality of tubes between two such partitions 16 are positioned.

The headers may each be composed of a bottom part and a lid part, wherein the bottom part in each case the tube-rib block 14 facing, and the cover part of this tube-rib block 14 turned away. Adjacent to the first manifold 12 is the collector 10 arranged, which is substantially parallel to this first manifold 12 extends. The collection container 10 can on the side facing away from the tube-rib block side of the first manifold 12 be arranged. It can also be pivoted in the direction of this tube-rib block.

At the second, not shown manifold is such a collection container 10 not provided.

The second manifold is above and below via suitable closure means locked. For example, you can not solvable here Cover be used. It can also detachable Cover be provided. Not solvable Lid can in particular soldered or welded be.

Between the pipes 16 of the tube and rib block 14 each ribs are arranged, which of air, in particular transversely to the longitudinal direction of the tubes 16 can be flowed through.

The collector 10 has a first tube 20 on, as well as a first profile piece 22 , The first profile piece 22 is in a first end 24 remote end portion of the collection container 10 arranged. This is the top end area. The profile piece 22 extends substantially to the second or upper end 26 of the collection container 10 ,

In the design according to 1 shows the first pipe 20 a substantially hollow cylindrical shape. The profile piece 22 is designed substantially round, and has substantially a cylindrical outer circumferential surface. On an inner side, this profile piece on a profiling, which will be explained with reference to the following figures.

The wall thickness of the first pipe 20 is less than the wall thickness of the profile piece 22 , The first pipe 20 is thus substantially thin-walled compared to the profile piece 22 designed.

Between the collection container 10 and the first manifold 12 are overflow openings or overflow channels 28 . 30 intended. The overflow opening 28 or overflow channel 28 serves to the fluid or refrigerant from the reservoir 10 in the first manifold 12 can flow, and the overflow or the overflow 30 serves to the fluid or refrigerant from the first manifold 12 in the collection container 10 can flow. Between these overflow openings 28 . 30 a sealing lip or a suitable separating means is provided, which is a direct flow of fluid or refrigerant from the overflow opening 30 in the overflow opening 28 inside the collection container 10 prevented. In the collection container 10 Furthermore, a dryer is arranged, which has a dryer cartridge and a filter. The dryer part of this dryer or the dryer cartridge serves to extract moisture or water from the fluid or refrigerant. It can be provided, for example, that for this purpose a granulate or powder or the like is provided. The filter serves to extract from the fluid or refrigerant any particles which could be introduced there, for example by abrasion.

The first pipe 20 For example, it can be a welded pipe.

The first profile piece 22 is on the first pipe 20 put on and soldered with this.

At the second or lower end 24 of the first pipe 20 this tube is closed. So is a closure element 32 intended. This closure element 32 according to the design 1 non-releasable and sealing with the first tube 20 connected. For example, a solder joint may be provided here.

In the area of the second end 26 or the upper end of the collecting container 10 is a ring holder 34 intended. This ring holder surrounds the sump 10 or its first profile piece 20 at least partially, here circumferentially completely. As 2 shows, this ring holder has a bend which extends slightly frontally of the profile piece. This ring holder further has an extension which in the upper end or the upper region of the first manifold 12 attacks. In this area, the extension of the ring holder at the same time a lid for closing this first manifold 12 form. He can also encompass manifold from the outside. Furthermore, it can be plugged into the frontal opening of the manifold by clamping. Preferably, the ring holder takes both the first manifold 12 as well as the Sammelbe container 10 or the first profile piece 22 clamped up. By means of such a ring holder, the first manifold 12 at the collecting container 10 or the first profile piece 22 be held or takes place the positioning of the collecting container 10 to the first manifold 12 over this ring holder, at least in the upper area. In a soldering process in the soldering oven then the ring holder 34 in the soldering oven with the first manifold 12 and the collection container 10 or the first profile 22 be soldered. This can for example be such that the first manifold 12 is sealed at its upper end.

It can also before filling in the collecting furnace soldering points or detention sites may be provided for prefixing.

2 shows an upper section of the design according to 1 in an enlarged view, wherein the collecting container 10 or the first pipe 20 and the first profile piece 22 as well as the ring holder 34 partially cut open and the arrangement according to the design according to 1 tilted slightly forward.

In 2 is the releasable closure 36 to recognize, by means of which the second end 26 or the upper end 26 the collection container can be closed. This closure element 36 is designed here as a plug. The closure 36 has on its outer surface on two circumferential, longitudinally spaced grooves, in which as an O-ring 38 designed sealing devices are each arranged. The profile piece 22 has on its inner surface a sealing surface 40 for the o-rings of the plug 36 on.

Further, in the inner surface of the first profile piece 22 a circumferential groove 42 provided, which can accommodate a retaining ring.

The stopper or closure 36 is used for closing so far the first profile piece, the one in the groove 24 arranged or subsequently arranged retaining ring the plug or closure 36 holds in its closed position. This locking ring can be removed for example by means of a suitable tool to release the closure again and to allow removal of the dryer.

The closure may by suitable means, stops or the like at a fall into the collecting tube 10 be prevented.

For this can For example, spacers or attacks or energy storage, such as Be provided spring or the like.

Preferably is the dryer, which in particular designed as a dryer cartridge can be, solvable held in a certain position.

For this For example, a power storage or elastic retaining elements or the like may be provided.

Exemplary design for such a holding are in the DE 103 06 192 A1 The applicant discloses and is incorporated by reference into the subject matter of the present disclosure as preferred embodiments.

There are also disclosed dryer, which are designed as a dryer filter cartridge. Also in terms of the design of the local dryer, or dryer elements, or filter elements, or dryer filter cartridges could be given in a preferred embodiment of the invention is based on the DE 103 06 192 referred to in this regard by inclusion in the subject of the present disclosure.

The first profile piece 22 has on its inner surface on a circumferential slope, for example, allow a gentle insertion of the O-rings. Accordingly, this slope is above the sealing surface of the first profile piece 22 arranged.

As in 2 shown, the wall thickness of the first profile piece is greater than the wall thickness of the first tube 10 , This is there such that the first profile piece radially inward in the contact area between this first profile piece 22 and the tube 20 essentially flush with the tube 20 terminates and radially outward a conforming to the outer surface extension 44 is provided, which is the pipe 20 overlaps or envelops.

The pipe 20 here supports axially on the first profile piece 22 off, with the profile piece 22 on the first pipe 20 is plugged.

3 shows an exemplary lower portion of the design according to 1 in enlarged, partially cutaway view.

In the cutaway view of the dryer or the dryer cartridge or dryer / filter cartridge is partially visible, which may for example be designed as it in the DE 103 06 197 the applicant is described. In particular, the dryer cartridge or dryer / filter cartridge can also form a structural unit with a filter. A filter can also be provided separately from a filter cartridge. Dryer cartridge and filters are also referred to as dryers.

In 3 is the overflow or over flow channel 28 cut free. There it can be recognized that forms 60 . 62 to form an overflow opening of a transfer channel 28 in the collection container 10 or on the first pipe 20 on the one hand, and on the first manifold 12 provided on the other hand, each projecting outward, and here are slightly inserted into each other, but this can also be designed differently. In the area of these overflow openings, this also applies to the overflow opening 30 , the first collection pipe 12 soldered together tightly.

The dryer / filter cartridge or dryer cartridge 64 of the dryer 66 is in a detachable snap fit 68 in the collection container 10 held so that it is fixed in the longitudinal direction of the collecting container, but can also be solved for replacement. At least one of the disc-shaped elements 69 . 69a to be a sealing lip. The sealing lips 69 . 69a may in particular be such that it has a direct flow of fluid or refrigerant from the overflow opening or the overflow channel 30 to the overflow or to the overflow 28 prevent so that the fluid or refrigerant must flow through the dryer.

In 3 is further shown that between the collecting container 10 and the first manifold 12 a slot is provided around which they are substantially spaced from each other.

4 shows a sectional view of the design according to 2 in partial view.

As can be seen there, the slope is 44 of the profile piece 22 from the point of view of the positions where the O-rings 38 are positioned, in the direction of the upper and first end 24 of the collection container 10 located. In 4 may well be the groove 42 be recognized on the inner surface of the first profile piece 22 is arranged and a retaining ring for holding the closure 36 having.

Furthermore, can 4 also be taken well, as in the contact area between the first closure piece 22 and the first pipe 20 these parts on their inner surface substantially flush, with the extension 46 of the first profile piece 22 overlapping on the outer surface of the first tube 20 continues. Furthermore, in 4 in the groove 42 inserted circlip 72 shown.

5 shows an exemplary alternative design for the sump 10 or the first manifold 12 , respective lower or the first ends facing area. This design can in particular also be part of a heat exchanger. For example, the design according to 5 alternatively in the design according to 1 be in the lower part of the heat exchanger. For example, the design according to 5 alternatively according to the design 1 be provided in the lower area. In the upper area of the sump 10 according to 5 For example, be designed as the basis of the 2 and 4 was explained. In the collection container 10 according to 5 For example, a dryer / filter cartridge or dryer cartridge 64 of the dryer 66 be arranged as it is based on the 3 was explained.

The collection container 10 in the design according to 5 differs in the first end 24 facing end region in particular in that the first tube 20 not until the end 24 extends. According to 5 is at the bottom or first sump end a second profile piece or a second extruded profile 80 arranged. This second extruded profile 80 is with the first pipe 20 connected, on the side facing away from the first profile piece. In the design according to 5 is also exemplified manner, a first profile piece provided, which may in particular be as it has already been explained above, which, however, in 5 not shown. The wall thickness of the second extruded profile 80 is greater than the wall thickness of the first tube 20 , The extruded profile 80 may in particular be such that the correspondingly designed extruded profile, which in the lower region of the collecting container with respect to the lower part of the collecting container in 2 of the EP 131 07 48 A2 is explained to the Applicant, so that reference is made to this description and this is the subject of the present disclosure. The same applies to the lower portion of the first manifold, which is also in 2 of the EP 131 07 48 is shown in a corresponding manner, so that reference is made to the comments there on the design of the first manifold in the lower area and these embodiments are the subject of the present disclosure.

It is provided in particular that the second profile piece 80 has a thicker wall thickness than the first tube 20 of the collection container 10 , In the design according to 5 is provided in particular that the second profile piece on the first manifold 12 facing side through holes 82 . 84 in which the passages 86 respectively. 88 the first manifold or the lid 90 of the first manifold inserted or inserted in the assembled state. The second profile piece 80 also has an area 92 its outer surface, which has an outer surface area 94 of the first manifold 12 or the lid 90 is conformed to and contacted in the assembled state or to this snugly. As 5 can be taken, this is the outer surface area 92 of the second profile piece 18 arched allowed.

6 shows an according to the design according to 2 and 4 alternative design of the upper end region or in the region of the second end 26 located end of the collection container 10 in a schematic partially cutaway view. The design according to 6 In particular, with a design according to 1 and / or according to 3 and / or according to 5 be combined. The following are essentially the differences in the design according to 6 according to those according to 2 and 4 described with regard to further preferred design features also to the description of the 2 and 4 is referenced.

The design according to 6 differs from the design according to 2 respectively. 4 essentially by the fact that the sealing surface 40 for the two O-rings 38 not from a portion of the inner surface of the first profile piece 22 is formed, but from an inner surface portion of the first tube 20 , It is advantageous if this inner surface portion or the inner diameter of the first tube 20 being closely or very tightly tolerated.

In the design according to 6 is, the profile piece 22 correspondingly smaller or shorter, with only the groove 42 for receiving the safety ring 72 includes. The profile piece is, for example, in the manner explained with reference to the previous Fig. With the first tube 20 connected.

7 an exemplary design of the collection container 10 in the lower area, for example, as an alternative to the design of the collection container 10 can be provided in the lower area, the basis of the 3 has been explained, and then can be combined accordingly with other exemplified designs with reference to FIGS. In the design according to 7 is also, what is not shown, in the upper and second end of the collection container a first profile piece 22 provided, as well as a detachable closure 36 ,

In the following, in particular the differences to the design of the collection container 22 in the lower area according to 3 be explained.

In the upper or second end 24 remote end region, the collection container 10 in the design according to 7 a second profile piece 80a which is extruded, for example. Further, the sump in the design according to 7 also at its first, lower end by a (second) releasable closure 100 locked. This (second) releasable closure 100 For example, it can be designed like the closure 36 holding the sump 10 detachable at the top or first end 24 closes. In 7 is this closure 100 designed as a plug, substantially with the plug 36 is identical, based on the 2 and 4 was explained. Also the second profile piece 80a can be designed as the first profile piece, based on the 2 and 4 was explained. The second profile piece may for example be an extruded part.

In particular, in a corresponding manner - in particular two axially spaced - circumferential grooves in the plug or closure 100 be provided, each with an O-ring 38a for sealing, sealingly against an inner surface portion of the second profile piece 80a or the first pipe 20 is applied. The second profile piece may, in particular, have a circumferential groove which carries a releasable retaining ring which seals the closure 100 can hold. In particular, the connection between the second profile piece 80a and adjacent end of the tube 20 including the appropriate shape design in the connection area so as to be in relation to the connection between the other end of the tube 20 and the detachable closure provided at the upper end.

According to the invention is enabled the dryer upwards or through an upper opening of the collecting container to remove or exchange. The invention provides a basis for such, in particular Even preferred designs show that costs can be eliminated by omitting a long extruded profile are saved, in particular in designs in which the dryer up or by a in the area of the second opening arranged opening or exchange opening can be removed or replaced. An inventive design can also be such or be developed that saved weight becomes. An inventive design can be used advantageously in motor vehicles, in which it is advantageous or necessary to arrange a detachable closure at the top around collecting containers, in an advantageous, for example, simpler way the exchange to allow the dryer or possibly even only possible close. The invention further provides a basis for simple Way a thermal separation of the first manifold and sump too realize.

1

heat exchangers

10

Clippings

12

first manifold

14

Tube / fin block

16

Pipe from 14

18

Rib of 14

20

first pipe

22

first profile piece

24

first end of 10

26

upper end of 10

28

Overflow channel or -opening

30

Overflow channel or -opening

32

closure element

34

ring holder

36

shutter

38

O-ring

40

Sealing surface of 22

42

groove

44

slope

46

extension

60

Expression 12

62

Expression 10

64

dryer cartridge

66

Trocker

68

detachable latching seat

70

slot

72

circlip

80

second profile piece

80a

second profile piece

82

Bore in 80

84

Bore in 80

86

Draft in

88

Draft in

90

cover

92

Outside surface area of 80

94

Outside surface area of 12 respectively. 90

Claims (43)

Container-dryer assembly for heat exchangers, and in particular for a refrigerant condenser of a motor vehicle air conditioner, comprising a collecting container and a dryer accommodated therein exchangeably, wherein the collecting container has a jacket wall extending about its longitudinal axis, at least in a section extending along the longitudinal axis a first tube is formed, wherein the collecting container has at least one inlet opening for a fluid such as refrigerant, and at least one outlet opening for the fluid and wherein the outlet opening is arranged in the end region facing the first axial end of the collecting container and wherein the collecting container at its second, the first remote axial end has a removal opening for the replacement of the dryer, and a releasable closure for this removal opening in the region of the second end is provided, characterized in that on the The first end facing away from the first end of the first tube, an adapter device or a first profile piece is provided for the releasable closure, on which or on which the releasable closure is held in its closed position. Assembly according to claim 1, characterized in that that adapter device or the first profile piece with an end region in one end of the first tube inserted or on one end of the first tube is plugged. Assembly according to one of the preceding claims, characterized characterized in that the adapter device or the first profile piece directly is connected to the first tube, in particular by means of a solder joint or a welded joint. Assembly according to one of the preceding claims, characterized in that the adapter device or the first profile piece has a Section of itself around the longitudinal axis of the collection container forms extending jacket wall of this collection container, in particular the end portion of this jacket wall located at the second end. Assembly according to one of the preceding claims, characterized in that the first profile piece or the adapter device tubular or ring-shaped is designed. Assembly according to one of the preceding claims, characterized in that the first profile piece is an extruded component is. Assembly according to one of the preceding claims, characterized characterized in that the first tube is a substantially constant one Wall thickness has. Assembly according to one of the preceding claims, characterized in that the adapter device or the first profile piece is one of the first pipe is a different component. Assembly according to one of the preceding claims, characterized characterized in that the inner surface of the first piece profile piece sections or completely perpendicular to its longitudinal axis seen cross-section circular is. Assembly according to one of the preceding claims, characterized in that the inner surface of the first profiled piece piece in the cross section seen perpendicular to its longitudinal axis along this longitudinal axis different (inner) order having starting dimensions. Assembly according to one of the preceding claims, characterized in that the first profiled piece piece has at least one groove for Receiving a locking ring. Assembly according to claim 11, characterized in that that in this groove a securing ring is detachably arranged, and by means of this locking ring, the closure element in the first end of the Module facing away from the direction is blocked. Assembly according to one of the preceding claims, characterized characterized in that the closure element as a screw cap is designed and in a thread of the adapter device or the first profile piece to the detachable Closing the collecting is screwed. Assembly according to one of the preceding claims, characterized in that at least one sealing device is provided is, in particular at least one sealing device for sealing of the solvable faced lock the first profile piece or the adapter device or with respect to the first tube. Assembly according to one of the preceding claims, characterized in that the closure and / or the first profile piece or the adapter device at least one groove for receiving an O-ring having. Assembly according to one of the preceding claims, characterized characterized in that at least one O-ring in one or a respective Groove of the closure is held, and this O-ring with egg nem surface section of the first profile piece or sealingly cooperating with the adapter device and / or the first tube, in particular with a portion of an inner surface. Assembly according to one of the preceding claims, characterized characterized in that the first profile piece in the direction of the longitudinal axis of the collection container seen is short, and in particular compared to the first tube. Assembly according to one of the preceding claims, characterized characterized in that the first profile piece is round. Assembly according to one of the preceding claims, characterized characterized in that the wall thickness of the first profile piece is larger as the wall thickness of the first pipe. Assembly according to one of the preceding claims, characterized characterized in that the first profile piece with a thread for receiving a threaded closure and / or with a groove is provided for receiving a retaining ring, and the remaining Wall thickness in the area of the threaded recesses or the Groove reduced wall thickness larger or is equal to the wall thickness of the first tube. Assembly according to one of the preceding claims, characterized characterized in that the inlet opening for the fluid in the first axial end of the collection container facing end portion is arranged. Assembly according to one of the preceding claims, characterized in that the inlet opening or the outlet opening of the collecting as, especially to the outside protruding, passages are formed, in particular at least a portion of a transfer port form. Assembly according to one of the preceding claims, characterized in that the inlet opening or the outlet opening of the Clippings through to the outside directed formations formed with a preferably annular outer contact surface are. Assembly according to one of Claims 22 and 23, characterized that the expressions or passages are provided on the first tube. Assembly according to one of the preceding claims, characterized characterized in that in the first end of the collecting container facing end portion of the collection container a second, preferably extruded, profile piece provided. Assembly according to claim 25, characterized in that that the second profile piece the entrance opening and / or the exit opening of the collection container having, in particular, this respective opening designed as provided in a jacket wall bore. Assembly according to one of Claims 25 and 26, characterized that the second profile piece is connected to the first pipe, in particular directly, and For example, about a Solder joint. Assembly according to one of Claims 25 to 27, characterized that the second profile piece closed in the region of its end facing away from the second end of the collecting container is, in particular by means of a releasable closure. Assembly according to one of the preceding claims, characterized by in that a filter device for the fluid is received in the collecting container is, which preferably forms a module with a dryer cartridge. Heat exchanger, in particular refrigerant condenser for one Automotive air conditioning system comprising a sump dryer assembly according to a of the preceding claims. heat exchangers according to claim 30, characterized in that the heat exchanger a pipe or pipe / fin block having a plurality of at least partially substantially parallel tubes and optionally having ribs disposed between the tubes, the first ends be absorbed by a first manifold and being parallel is arranged to this first manifold, the collection container, and wherein the first collecting tube has at least two openings, of which one of the entrance opening of the collection container and one of the exit opening of the collection container is assigned, so that an overflow or overflow formed be to a fluid or refrigerant flow from the first manifold into the sump and vice versa. heat exchangers according to claim 31, characterized in that a second manifold is provided, which the second ends of the tubes of the pipe or Pipe / rib blocks absorbs. heat exchangers according to one of claims 30 to 32, characterized in that the first manifold a cup-shaped cover part and an associated, in particular soldered or welded, cup-shaped bottom part has, wherein this cover part and this bottom part in cooperation forming a jacket wall of the first manifold, and wherein in the bottom part openings, in particular Slots for receiving the first tube ends of the tubes of the tube or tube / rib blocks are provided. heat exchangers according to one of claims 30 to 33, characterized in that the first manifold to the inside or to the outside outstanding passages to form the openings has, that of the inlet opening or the outlet opening of the collection container assigned. heat exchangers according to one of claims 30 to 34, characterized in that the passages of the first Collection tube telescopically in the passages of the collection under Formation of overflow openings or overflow channels intervene. heat exchangers according to one of claims 30 to 35, characterized in that the passages of the first Manifold and the passages of the collection container for the formation of overflow openings or overflow with after each outward-facing faces dull on each other are arranged, wherein the respective abutting passages preferably essentially identically shaped and identically dimensioned faces exhibit. heat exchangers according to claim 36, characterized in that the with their End faces abutting by trains from a common sleeve radially outside are sheathed or radially inside a common sleeve, in particular under contact, record. heat exchangers according to one of claims 30 to 37, characterized in that the first manifold for Formation of the openings, the entrance opening or the outlet opening of the collection container are assigned to the outside having directed formations with a preferably annular outer contact surface. heat exchangers according to one of claims 30 to 38, characterized in that the first collecting pipe projecting outwards, one opening each having forming collar which in the inlet opening and the outlet opening of the collecting for the formation of overflow openings or overflow channels intervene, wherein the inlet and / or the outlet opening of the collecting container is preferred on the second profile piece is arranged. heat exchangers according to one of claims 30 to 39, characterized in that the second profile piece a Having the first manifold facing outer surface area, the an outer surface area the shape of the first manifold is shaped, in particular curved designed is, these outer surface areas each other to contact. heat exchangers according to one of claims 30 to 40, characterized in that the collecting container and the first manifold spaced by a slot to each other being held. heat exchangers according to one of claims 30 to 41, characterized in that the one, in particular as a ring holder designed, holding element is provided, which in the field of second end of the collection container the collection container stops at the first manifold, and optionally a cover of the first header forms. heat exchangers Claim 42, characterized in that the ring holder with an annular or ring-shaped Section the sump embraces.