EP2108905A1 - Condenser, in particular for a motor vehicle - Google Patents

Abstract

The condenser has a pipe-/ rib block, a cooling collecting tank, and a collector for receiving a dryer and/or filter. The collector is closed at axial ends by a closure device. The closure device has a holding unit (30) for one of the collecting tanks. The closure device is externally arranged at one of the axial ends of the collector. A holding device comprises a sealing cover region (17) for closing an axial end of the collector, where the cover region lies at outer side of the collector. The closure device or the holding device is designed as cast components.

Description

The invention relates to a condenser, in particular of a motor vehicle, with a tube / fin block, with refrigerant collecting boxes and with a collector, in particular for receiving a dryer and / or a filter, such as a dryer and / or filter cartridge, wherein the collector at least one its axial ends is closed with a closure device, wherein the closure device has holding means for one of the refrigerant collecting boxes. Moreover, the invention relates to a condenser, in particular of a motor vehicle, with a tube / fin block, with refrigerant collecting boxes, with a collector for receiving a dryer and / or a filter, such as a dryer and / or filter cartridge, and with a holding device, by means which collector is arranged on one of the refrigerant collecting boxes, and in which the holding means closes at least one axial end of the collector.

Generic capacitors are well known from the prior art, in particular the automotive industry. For example, a capacitor is in the published patent application DE 10 2005 005 187 A1 described, which has a tube / rib block and laterally disposed thereon manifolds for a refrigerant. The condenser further includes a dryer-filter insert disposed in a tubular collector. The tubular collector is spatially connected to one of the header tubes of the tube fin block so that refrigerant of the condenser can flow between the tubular header and this header tube.

To the tubular collector on the one hand at one of its ends structurally easy to close and on the other hand structurally easy to attach to the manifold, the tubular collector at least at its lower end a soldered bottom, which can also extend radially beyond the lower end of the manifold. The floor is in this case made of a stamped sheet metal part, which has a paragraph, by means of which the bottom is at least partially inserted into the interior of the tubular collector, wherein the bottom is soldered in the region of the paragraph with the collector inside. In this respect, the tubular collector is closed liquid-tight at its collector inside by means of the inserted paragraph of soldered soil. In addition, the soldered bottom is soldered at the same time at the end of the manifold, whereby the tubular collector and the manifold are connected to each other by means of soldered soil.

In such function combined collector floors, although one end of the collector can be closed by means of soldered soil, and the collector can be attached by means of soldered soil at the same time on the manifold of the capacitor, so that advantageously no additional fastening device, at least in the region of the collector bottom or holding device between the collector and the manifold must be provided, however, it comes in such functionally combined constructions repeatedly leaks in the field of solder joint between the collector and the soldered ground. Although the soldered-in floor can be manufactured as a relatively simple stamped component, it must, however, fulfill a sufficiently high dimensional stability, since the floor must, on the one hand, ensure a sufficiently large solder gap on the inside of the collector in order to reliably enable a liquid-tight soldering there. On the other hand, the soldered ground outside the collector needs to meet other tolerances in order to properly solder the soldered ground, for example, to the manifold can. In particular, in a soldering process in which the components of the capacitor are soldered together in a brazing furnace, it comes with respect to the tolerances to be complied with the punched floors again and again to leakage problems, since the vorzuhaltende soldering gap on the inside of the collector either too small or too big. As a result, there is a risk that an insufficient amount of solder is available in the soldering gap. This often causes leakage rates to occur in an interval of approximately 10 to 20 percent, which results in an unacceptable rejection of capacitors.

It is an object of the present invention to further develop known capacitors such that rejects due to poor solder joints between a dryer and filter cartridge collector and a bottom can be reduced.

The object of the invention is achieved by a condenser, in particular a motor vehicle, with a tube / fin block, with refrigerant collecting boxes and with a collector for receiving a dryer and / or a filter, such as a dryer and / or filter cartridge to which the collector is closed at at least one of its axial ends with a closure device, wherein the closure device comprises holding means for one of the refrigerant collecting boxes, and wherein the condenser is characterized in that at least one of the axial ends of the collector, the closure means is arranged on the outside of the collector ,

The fact that the closure device is arranged on the outside of the collector, it can be constructed much easier. In particular, it is possible with the present closure device that an internal dimension of the collector no longer has to be taken into account in the construction of the closure device. In this respect, no tolerances with regard to the internal dimension of the collector must be taken into account at the closure device. As a result, a suitable soldering gap can be set particularly reliably between the closure device and the collector, in which there can always be enough solder to be able to seal the collector in a particularly permanently secure manner by means of the closure device.

The term "outside" herein describes any areas of the collector that differ from an inside of the collector. In particular, the term "outside" means the lateral surface of the collector, which limits the collector at its periphery relative to its surroundings.

The term "tube / rib block" in the present case describes a region of the capacitor, by means of which heat energy can be released from a refrigerant to the environment. For this purpose, the tube / rib block at least refrigerant tubes, which can be arranged between two refrigerant collecting boxes of the capacitor. Preferably, the tube / fin block in addition to the components "refrigerant tubes" further components, such as ribs or cooling or corrugated fins, whereby a Heat transfer to the environment can be significantly improved. By means of the cooling fins, the heat-emitting surface of the capacitor can be increased well.

The term "refrigerant collecting boxes" in this context describes any structures in which ends of the refrigerant tubes of the condenser can protrude, and in which a refrigerant can be introduced into the condenser, discharged and / or easily or repeatedly deflected. The refrigerant collecting boxes preferably sit here laterally of a tube / rib block of the condenser, formed at least by refrigerant tubes, and can thus form an edge region delimiting the condenser.

The term "collector" is understood in the present case to mean a construction which can accommodate a dryer and / or a filter, such as a dryer and / or filter cartridge of the condenser, wherein moisture and impurities escape from the refrigerant by means of the dryer and / or the filter can be filtered.

Often, the wall of the collector is made of a sheet metal which is bent into a tube, wherein the abutting ends of the sheet are welded together. This can create a collector of almost any length, which still has to be closed at its axial ends. Such sheets are not continuously uniformly thick, so that the inner diameter and the outer diameter of the collector may be different at its two axial ends. The collector is usually provided at one of its axial ends with a connection profile, which connects the collector and the refrigerant collecting box, on which the collector is arranged, spatially with each other, so that a refrigerant exchange can take place. For this purpose, the collector is inserted into the connection profile, wherein the inner diameter of the connecting profile and the lateral surface of the collector are coordinated. The connection profile, which is often referred to as Komoprofil, which is arranged to the outside of the collector. If now the present closure device is likewise arranged on the outside of the collector and the closure device is produced on its side facing the lateral surface with a similar or identical tolerance as the connection profile, the collector need only be designed precisely with respect to its lateral surface. A tolerance with regard to the internal diameter of the collector does not have to be taken into account here advantageously, as in the case of the bottom soldered in a collector. In this way, the present invention differs in particular from conventional closure devices of the prior art.

In the present case, any device which on the one hand closes an interior of the collector and on the other hand can fix the collector to its assigned refrigerant collecting box can be used as the "closure device" of the collector.

Furthermore, the object of the invention also by a condenser, in particular a motor vehicle, with a tube / rib block, with refrigerant collecting boxes, with a collector for receiving a dryer and / or a filter, such as a dryer and / or filter cartridge, and with a holding device is achieved, by means of which the collector is arranged on one of the refrigerant collecting boxes, and wherein the holding means closes at least one axial end of the collector, wherein the condenser is characterized in that the holding means arranged both outside of the collector and on the outside of the refrigerant collecting box is.

Advantageously, a collector on the one hand structurally particularly simple means of the holding means closed and on the other hand be secured by means of the holding device to the refrigerant collecting box when the holding device is arranged both outside of the collector and on the outside of the refrigerant collecting box.

It is advantageous that, with regard to the two solutions explained above, compliance with tolerances with respect to the internal dimension of the collector no longer needs to be considered.

In addition, it can be advantageously dispensed with in both solutions, to install a flux on the inside of the collector in order to ensure a secure solder joint at the ends to be closed of the collector. As a result, the risk is almost excluded that residues of the flux within the collector remain after a soldering process and, for example, dirty and damage a dryer and / or filter cartridge sustained and damage, whereby the capacitor would be adversely affected, at least in the long term in its performance properties.

In this context, a preferred embodiment provides that the holding device comprises a cover cover area lying outside of the collector for closing an axial end of the collector.

If the closure device or the holding device is attached externally to a lateral surface of the collector, the collector can be structurally particularly easily closed and fastened to the refrigerant collecting box. In addition, a particularly simple connection between the closure device or the holding device and the collector is possible.

It is particularly advantageous if the closure device or the holding device seals the collector on its lateral surface. In particular, when the closure device seals the collector on its lateral surface, precautions for preparing a suitable sealing surface on the lateral surface of the collector can be made particularly advantageous, since the lateral surface of the collector is particularly accessible.

A particularly preferred embodiment provides that the closure device or the holding device is soldered to the outside of the collector, whereby a soldering of the components can be made without the risk of contamination of the collector tube interior exists. In particular, procedurally outside the collector, a flux can be attached particularly easily. It is particularly advantageous here that the risk that residues of a flux get into the interior of the collector, can be particularly reduced, since the flux is provided substantially only on the lateral surface of the collector.

If the closure device or the retaining device has a radially inwardly directed inner fastening region, by means of which the closure device or the retaining device is fastened to the lateral surface of the collector, it can be ensured in a particularly reliable manner that the collector can be sealed in a liquid-tight manner on its lateral surface.

In this case, it is advantageous if the radially inwardly directed inner fastening region has a first partial region which bears against the lateral surface of the collector. If the closure device or the holding device with the first subregion abuts against the lateral surface of the collector, the closure device or the holding device can in particular be pre-assembled precisely to the collector. Preferably, the closure device or the holding device in this case jammed with the collector so that they can not shift even in a soldering process or only negligible relative to each other. The first subregion can thus essentially provide a mounting surface on the closure device or on the holding device, via which a non-positive connection between the closure device or the holding device and the collector can be produced.

Moreover, it is advantageous if the radially inwardly directed inner fastening region has a further partial region, which is arranged at a distance from the lateral surface of the collector, so that a soldering gap is present between the further partial region and the lateral surface. In the soldering gap can advantageously accumulate solder, so that during the soldering process at the other portion, for example, between the closure device and the collector a particularly good cohesive solder joint can form. As a result, the risk of a faulty soldering area can be further reduced. Both the first and the further partial area preferably run concentrically and closed around the lateral surface of the collector, wherein the first partial area does not have to form a closed mounting surface, since sealing properties do not necessarily have to be present here.

A preferred embodiment provides that the closure device or the holding device has a receptacle for an axial end of the collector, which is arranged concentrically around the axial end of the collector. With such a concentric circumferential recording of the collector can be particularly well enclosed in a suitably designed Außenbefestigungsbereich the collector. An external attachment area of a collector is characterized in particular in that it is accessible radially from the outside. In particular, an inwardly directed inner fastening region of the closure device or The holding device can communicate particularly well with the lateral surface of the collector if the collector has on its lateral surface such an outer fastening region on which the closure device or the holding device is arranged. Especially between the closure device or the holding device and the collector, a solderable fit can be produced.

For example, the receptacle is arranged as a circumferential collar around the axial end of the collector, so that the axial end or a peripheral surface of the collector machined to an outer fastening area can be snugly fitted to the receptacle. In this respect, an excellently accurate soldering gap can be ensured in the region of the further partial region between the lateral surface of the collector and the receptacle.

In order to advantageously reinforce the collector at its axial ends, the closure device or the holding device may comprise a closure lid region which has a variable cross-section. Since, in particular, the axial ends of the collector can be subjected to high mechanical loading, in particular with regard to a high internal pressure, it is advantageous if a closure lid region is reinforced, for example by means of additional material accumulations.

Moreover, if the closure device or the holding device is arranged contactlessly against the collector with respect to an inner wall of the collector, the closure device or holding device can easily expand with respect to the inner wall of the collector, for instance during a soldering process, without the risk of the closure device being critical hits the inner wall of the collector. This allows a high dimensional accuracy of the closure device or the holding device can be maintained, since the closure device or the holding device can be soldered to an axial end of the collector substantially without critical relative movements.

If the closure device or the holding device has means for holding on one of the refrigerant collecting boxes, wherein the means for holding comprise two holding arms, a refrigerant collecting box can be excellently gripped and held by the holding means of the closure device or the holding device.

If the means for holding a refrigerant collecting box end cover at least partially, an axial end of a related refrigerant collecting box can be additionally covered and particularly well protected against mechanical influences. In particular, a particularly good connection between the closure device or the holding device and an axial end of the refrigerant collecting box can be produced.

It is understood that the closure device or the holding device can be produced in a variety of ways, in particular from a large number of materials. Particularly suitable in terms of a good solder joint, the closure device or the holding device can be produced as a cast component. This is particularly advantageous when the components to be soldered, for example a closure device, a collector for a dry and / or filter cartridge and a refrigerant collection box, are made of a same or at least similar material alloy.

It is understood that the closure device or holding device described here can not only be advantageously provided on a condenser but rather also on further heat exchangers, to which refrigerant or coolant-carrying tubes axially closed and / or two or more more refrigerant or refrigerant pipes must be connected to each other.

Further advantages, objects and features of the present invention will be explained with reference to the following description of the appended drawing, in which an example of a capacitor and alternative collector closures are shown. Components which in the figures at least substantially coincide with respect to their function may in this case be identified by the same reference numerals, these components not having to be numbered and explained in all figures.

It shows

FIG. 1

1 is a schematic perspective view of a condenser, to whose right refrigerant collecting box a collector with a dryer and / or filter cartridge is attached;

FIG. 2

FIG. 2 schematically shows a perspective view of a closure device with a closure lid region and with means for holding the collector to the right-hand refrigerant collection box, FIG.

FIG. 3

schematically a plan view of the closure device of the FIG. 2 .

FIG. 4

schematically a cross section of the closure device of the Figures 2 and 3 regarding the closure lid area,

FIG. 5

schematically a further cross section of the closure device of the FIGS. 2 to 4 in terms of holding means,

FIG. 6

2 schematically shows a perspective view of a holding device with an alternatively designed closure lid region and with alternatively configured means for holding the collector on the right-hand refrigerant collecting box,

FIG. 7

schematically a plan view of the holding device of the FIG. 6 .

FIG. 8

schematically a cross section of the holding device from the FIGS. 6 and 7 with regard to the alternatively designed closure lid area,

FIG. 9

schematically a further cross section of the holding device of the FIGS. 6 to 8 with regard to the alternatively designed holding means,

FIG. 10

FIG. 2 schematically shows a perspective view of an alternative closure device with a thick-walled closure lid region, with a mounting gap and with means for holding the collector, FIG.

FIG. 11

schematically a cross section of the closure lid region of the FIG. 10 .

FIG. 12

schematically a detailed view of the mounting gap from the FIGS. 10 and 11 .

FIG. 13

schematically a perspective view of another closure device with a thick-walled closure lid area, with a mounting gap and with a central accessory receptacle, and

FIG. 14

schematically a cross section of the closure lid region of the FIG. 13 ,

The Indian FIG. 1 shown capacitor 1 is composed of a plurality of components 2. Thus, the condenser 1 comprises a tube / fin block 3, which consists in this embodiment of substantially horizontally extending refrigerant tubes 4, wherein the refrigerant tubes 4 between a first refrigerant collecting box 5 and a second refrigerant collecting box 6 are arranged. By means of the refrigerant tubes 4, the first refrigerant collecting box 5 and the second refrigerant collecting box 6 are spatially connected to each other, so that a refrigerant (not shown here) preferably on several levels (not shown here) of the condenser 1 according to the flow directions 7 between the two refrigerant collecting boxes 5 and 6 can flow back and forth. The various levels of the capacitor 1 can be realized structurally simple within the respective refrigerant collecting box 5 or 6 by guide plates not shown here in detail. The condenser 1 can be connected via the second refrigerant collecting box 6 to an external refrigerant circuit (not shown here). For this purpose, the second refrigerant collecting box 6 has a refrigerant inlet 8 and a refrigerant outlet 9. To be able to extract moisture from the refrigerant, for example with regard to a phase transition between a liquid phase and a gas phase, the condenser 1 has a dryer and / or Filter cartridge 10, which is housed in a specially provided on the condenser 1 dedicated collector 11. In order to close the collector 11 at its axial ends 12 and 13 and at the same time to be able to fix it to the first or right refrigerant collecting box 5, the collector 11 can at least one of its axial ends 12 and 13 with a closure device 14 (see FIGS. 2 to 5 ), which are arranged outside on the collector 11 and on a lateral surface 16 of the collector 11 is soldered. After the presentation of the FIG. 1 the axial ends 12, 13 of the collector 11 are shown without closures.

So that the closure device 14 can assume such a double function, the closure device 14 can essentially be subdivided into a closure lid region 17 and into a holding means region 18. The closure lid region 17 essentially has a closure lid 19 and a receptacle 20 for the axial end 13 of the collector 11.

So that the closure device 14, in particular in the closure lid region 17, is designed to be particularly stable, the closure lid 19 has a variable cross-section 21 (see in particular FIG FIG. 4 ). For this purpose, the closure lid 19 has two intersecting reinforcing webs 22 and 23, which merge into one another in the center 24 of the closure lid region 17.

The receptacle 20 is formed in this embodiment by a concentric about the center 24 circumferential collar 25 which provides a radially inwardly directed Innenbefestigungsbereich 26, which with an outer mounting portion 27 (see FIG. 1 ) at the second axial end 13 of the collector 11 can realize a particularly good and tight solder joint. At the first axial end 12, a Komoprofil 28 is provided, by means of which an inner space (not shown here) of the collector 11 and an inner space (not shown here) of the refrigerant collecting box 5 can be interconnected. On the inside of the Komoprofils 28 a Seeger ring (not shown here) may be mounted in a known manner, which secures the dryer and / or filter cartridge 10 in the collector 11.

The radially inwardly directed internal fastening region 26 is subdivided into a first partial region 26A and into a further partial region 26B. The first portion 26A may abut directly on the lateral surface 16 of the collector 11, so that the closure device 14 advantageously at the collector 11 can be pre-assembled. In the present case, the first subarea 26A can be regarded as a circumferential mounting surface on the closure device 14.

The further partial region 26B can not extend radially as far as to the lateral surface 16 of the collector 11, so that in a mounted state of the closure device 14 there is a soldering gap (not shown here) between the further partial region 26B of the closure device 14 and the lateral surface 16 of the collector 11 whereby it can be ensured that always a sufficient amount of solder for a liquid-tight solder joint can flow into the soldering gap and is available between the closure device 14 and the collector 11.

When mounting the closure device 14 is axially attached to the axial end 13, so that the radially inwardly directed inner mounting portion 26 and the outer mounting portion 27 of the collector 11 come to cover. In this case, the closure device 14 can be plugged onto the axial end 13 until the closure cap 19 bears against the axial end 13. In the present embodiment of the closure lid 14, there are provided with respect to the reinforcing webs 22 and 23 contact surfaces 29 (only explicitly numbered here), to which the collector 11 abuts at a proper connection between the closure device 14 and the collector 11 and the closure device 14 is plugged so far in that a soldering gap is always present between the further partial region 26B of the radially inwardly directed inner fastening region 26 and the outer fastening region 27. Thus, in particular, a liquefied solder can advantageously be distributed along the concentrically encircling collar 25, so that the risk of leakage due to faulty soldering compared to the prior art is reduced.

With regard to the holding means region 18, holding means 30 are provided in this embodiment, which essentially comprise two holding arms 31 and 32 and a cover 33. The holding arms 31 and 32 are well suited to embrace the round refrigerant collecting box 5. By means of the cover, the refrigerant collecting box 5 can be additionally protected against axial mechanical stresses. Since no liquid-conducting regions of the capacitor 1 must be sealed by means of the holding means 30, no special demands are to be placed on these holding means 30 with regard to their precision.

The collector 11 can by means of in the FIGS. 6 to 9 shown holding means 40 are alternatively attached to the refrigerant collecting box 5 of the present capacitor 1. In addition, the holding device 40, the collector 11 at its axial ends 12 and 13 also close. For this purpose, the holding device 40 has a closure lid region 17 and a holding means region 18.

The closure lid region 17 essentially comprises a closure lid 19 and a receptacle 20 for receiving the axial end 13 of the collector 11. The closure lid 19 has a variable cross section 21 which is defined by means of a material accumulation 41 (see FIG FIG. 8 ) is realized on the holding device 40. As a result, the holding device 40 and not least also the closure lid region 17 is given a particularly high strength.

The receptacle 20 here too has a concentrically encircling collar 25 with a radially inwardly directed internal fastening region 26, which can communicate with the outer fastening region 27 of the collector 11. Also with regard to the holding device 40, the radially inwardly directed inner fastening region 26 is subdivided into a first partial region 26A and into a further partial region 26B, wherein the first partial region 26A abut directly on the lateral surface 16 of the collector 11 and the other portion 26 B can not reach down to the lateral surface 16 zoom, which can be formed with respect to the holding device 40 of the advantageous soldering gap.

In the closure lid region 17 abutment surfaces 29 exist, to which the collector 11 can abut when the holding device 40 are axially mounted on the collector 11 and axially on the axial end 13 of the collector 11.

The holding means region 18 also has holding means 30, which, however, comprise only one holding arm 31 and a further holding arm 32. In the present case, a cover 33 is dispensed with, as is still the case with the closure device 14, so that the holding device 40 can be fastened to the shell surface 16 of the collector 11 almost at any height. Advantageously, collectors 11 can thereby be arranged on refrigerant collecting boxes 5 and 6, which are also designed to be longer than the collector 11.

The in the FIG. 10 The alternative closure device 50 shown has a closure lid region 17 and a holding means region 18. The holding means region 18 comprises holding means 30 with two holding arms 31 and 32, but no cover 33, as is still provided in the closure device 14. Thus, the closure device 50 can also be provided without problems on a collector 11, which is designed to be substantially shorter than one of the refrigerant collecting boxes 5 or 6 of the condenser 1.

In this exemplary embodiment, the closure lid region 17 comprises a closure lid 19 which is completely solid except for a mounting gap 51, so that the closure lid 19 has a substantially constant cross-section 52 (see in particular FIG FIG. 11 ) having.

Although this makes the closure device 50 somewhat heavier, but it has due to the somewhat thicker closure cap 19 has a higher strength.

The mounting gap 51 runs concentrically around the center 24 of the closure lid area 17. Within the mounting gap 51, the radially inwardly directed inner mounting region 26 can be found, which is also subdivided in this embodiment into a first partial area 26A and into a further partial area 26B, as particularly well according to the detailed illustration 53 of FIGS FIG. 12 is recognizable. The radially inwardly directed inner attachment region 26 is provided on a likewise concentric about the center 24 circumferential collar 25.

By means of the mounting gap 51, the closure device 50 can be guided much better when placed on the second axial end 13 of the collector 11, whereby tilting of the closure device 50 to the collector 11 can be prevented even more effective than in the previously described embodiments.

In addition, the closure device 50 receives in the portion 26A a much firmer fit on the collector 11, so that the risk of relative movement between the closure device 50 and the collector 11 before and especially during a soldering process hardly exists.

Further, it is possible due to the mounting gap 51, the collector 11 in addition to solder easily on its inside, as in inserted into the mounting gap 51 axial end 13, a further solder gap (not shown here) between the inside of the collector 11 and the cap cover peripheral surface 54 (see FIG. 12 ) can train.

Another advantageous closure device 60 is in the FIGS. 13 and 14 The closure device 60 has substantially the same structure as the closure device 50 with respect to FIG FIGS. 10 to 12 , with the difference that in the closure device 60 in the closure lid 19 in the center, a through hole 61 is provided. The through-hole 61 can be equipped with an internal thread 62, so that a filling valve (not shown here) or a pressure and / or temperature sensor (not shown here) can be arranged on the closure device 60. For all of them, the closure device 60 is advantageously further developed in comparison to conventional generic closure devices and can take on additional functions in addition to the usual locking and holding function.

Otherwise, in the closure lid region 17 between a circumferential collar 25 and the closure lid 19, which has a constant thickness cross-section 52, a mounting gap 51 is provided, in which collar side of the radially inwardly directed inner mounting region 26 is placed with its two portions 26A and 26B.

In addition to the closure lid region 17, the closure device 60 also again comprises a holding means region 18 with holding means 30, which comprise a first holding arm 31 and a further holding arm 32.

Claims (14)

Condenser (1), in particular of a motor vehicle, with a tube / fin block (3), with refrigerant collecting boxes (5, 6) and with a collector (11) for receiving a dryer and / or a filter (10), in which the collector (11) is closed at at least one of its axial ends (12, 13) with a closure device (14; 50; 60), wherein the closure device (14; 50; 60) holding means (30) for one (5) of the refrigerant collecting boxes (5 , 6), characterized in that on at least one of the axial ends (12, 13) of the collector (11), the closure device (14; 50; 60) is arranged outside (15) on the collector (11). Condenser (1), in particular of a motor vehicle, with a tube / fin block (3), with refrigerant collecting boxes (5, 6), with a collector (11) for receiving a dryer and / or a filter (10) and with a holding device (10). 40), by means of which the collector (11) on one (5) of the Kältemitteisammelkästen (5, 6) is arranged, and wherein the holding means (40) at least one axial end (12, 13) of the collector (11) closes, characterized in that the holding device (40) is arranged both outside (15) on the collector (11) and outside on the refrigerant collecting box (5). Capacitor (1) according to claim 2, characterized in that the latching device (40) comprises a closure lid region (17) located outside the collector (11) for closing an axial end (12, 13) of the collector (11). Capacitor (1) according to one of the preceding claims, characterized in that the closure device (14; 50; 60) or the holding device (40) is attached externally (15) to a lateral surface (16) of the collector (11). Capacitor (1) according to one of the preceding claims, characterized in that the closure device (14; 50; 60) or the holding device (40) seals the collector (11) on its lateral surface (16). Capacitor (1) according to one of the preceding claims, characterized in that the closure device (14; 50; 60) or the holding device (40) is soldered to the outside of the collector (11). A capacitor (1) according to any one of the preceding claims, characterized in that the closure means (14; 50; 60) or the holding means (40) comprises a radially inwardly directed inner mounting region (26) over which the closure means (14; 50; 60) or the holding device (40) on the lateral surface (16) of the collector (11) is fixed. Capacitor (1) according to claim 7, characterized in that the radially inwardly directed inner mounting region (26) has a first portion (26A), which rests against the lateral surface (16) of the collector (11). Condenser (1) according to claim 7 or 8, characterized in that the radially inwardly directed inner mounting portion (26) has a further portion (26B) which is spaced from the lateral surface (16) of the collector (11), so that between the further portion (26 B) and the lateral surface (16) has a soldering gap is present. Capacitor (1) according to one of the preceding claims, characterized in that the closure device (14; 50; 60) or the holding device (40) has a receptacle (20) for an axial end (12, 13) of the collector (11), which is arranged concentrically around the axial end (12, 13) of the collector (11). Capacitor (1) according to one of the preceding claims, characterized in that the closure device (14; 50; 60) or the holding device (40) comprises a closure lid region (17) having a variable cross-section (21). Capacitor (1) according to one of the preceding claims, characterized in that the closure device (14; 50; 60) or the holding device (40) has means (30) for holding on one of Refrigerant collecting boxes (5, 6), wherein the means (30) for holding two holding arms (31, 32). Condenser (1) according to claim 12, characterized in that the means (30) for holding at least partially cover an axial refrigerant collecting box end. Capacitor (1) according to one of the preceding claims, characterized in that the closure device (14; 50; 60) or the holding device (40) is produced as a cast component.

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