EP2312240B1 - Housing of a dryer and method of producing it - Google Patents

Housing of a dryer and method of producing it Download PDF

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Publication number
EP2312240B1
EP2312240B1 EP10187081.4A EP10187081A EP2312240B1 EP 2312240 B1 EP2312240 B1 EP 2312240B1 EP 10187081 A EP10187081 A EP 10187081A EP 2312240 B1 EP2312240 B1 EP 2312240B1
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EP
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Prior art keywords
housing
region
dryer
cooling medium
housing portion
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EP10187081.4A
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German (de)
French (fr)
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EP2312240A1 (en
Inventor
Patrick Janak
Thomas Glück-Schinhan
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Rupert Fertinger GmbH
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Rupert Fertinger GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0446—Condensers with an integrated receiver characterised by the refrigerant tubes connecting the header of the condenser to the receiver; Inlet or outlet connections to receiver

Definitions

  • the present invention relates to a housing of a dryer for a cooling medium in a cooling medium circuit, in particular an air conditioner of a vehicle, to a dryer for a cooling medium in a cooling medium circuit, also in particular an air conditioning system of a vehicle, and to a manufacturing method for such a Gehaüse.
  • Dryer housing of the type in question are well known in the art and find application in dryers, which serve to filter out impurities and moisture from a cooling medium and absorb. Frequently, such dryers are used for cleaning the cooling medium in air conditioning systems of a vehicle to absorb the moisture in the system by means of a desiccant.
  • the DE 10 2005 023 103 A1 shows a dryer of an air conditioner of a vehicle, in which a housing is filled with a desiccant.
  • the housing is formed from a first housing part and a second housing part, which are fluid-tightly connected to one another via a welding method.
  • the first housing part has two openings, to which connecting elements for connection to media lines are attached or welded.
  • a problem with such dryer housings is that leaks can occur, in particular at the welds or solder joints, and thus the functionality of the dryer can not be guaranteed.
  • the housing in the region of the joints (welds and solder joints) disadvantageous material properties in terms of toughness and ductility so that also a failure of the dryer due to cracking in the housing is possible.
  • the DE 10 2008 034 631 relates to a drying device for drying and storage of a refrigerant, with at least one connecting part, by means of which the drying device can be fixed to a condenser of a refrigeration system.
  • the US-2004/007012 A1 relates to a dryer for a cooling medium in a cooling medium circuit with a cylindrical body and a cap which closes the lower end of the body, the body having a support region for a filter which separates the body into an upper and a lower region.
  • the EP 1 762 798 A1 discloses a method for manufacturing a container for use in a heat exchanger system, wherein a rolled metal cylinder is provided with a pipe section, a first end closable by a plug, and a second end provided with a retaining portion and an inwardly projecting shoulder is formed.
  • EP 1 762 798 also discloses a housing according to the preamble of claim 1.
  • the cross-sectional configurations of the first and second housing regions and of the connection region can be configured as desired, for example, round or angular or polygonal.
  • the second housing portion may be closed at its end opposite the first housing portion. This can be done indirectly via additional closure elements or directly by forming the second housing region as a tube body closed on one side (that is to say with a closed bottom). The same can apply to the first housing area.
  • the connection region arranged between advantageously has at least one radial opening. The opening can thus be formed radially or laterally or on the circumference of the connection region or transversely, preferably perpendicularly, to the longitudinal axis of the housing.
  • the housing is designed as a one-piece extruded part.
  • the housing is integrally or integrally formed of a preferably homogeneous material.
  • the housing according to the invention has no joining areas of different elements, as is known in the case of the prior art.
  • a tubular or rod-shaped housing is provided, which is formed as a one-piece body joining edge or area-free.
  • connection section has a connection surface for arrangement on a capacitor, which is preferably concave.
  • the connection surface advantageously has a round, preferably circular, surface configuration with a cross-sectional shape that is preferably constant along the longitudinal axis of the housing.
  • the wall thickness of the first housing portion is greater than the wall thickness of the second housing portion. This makes it possible that the first housing portion can be at least partially subjected to a cutting forming, for example, to provide a thread for a closure element.
  • the first and second housing regions preferably have a round, preferably circular, cross-sectional configuration.
  • the first and second housing region can thus expediently have a substantially rotationally symmetrical cross-sectional shape.
  • the connection area can also have a round or circular interior configuration. However, on the outside or surface of the radially outwardly projecting connection portion is advantageously provided.
  • the first and second housing portion on the same outer diameter.
  • the first and second housing regions constitute a substantially tubular or rod-shaped body.
  • the inner diameter of the first and second housing region does not have to be identical, since the first housing region expediently has a greater wall thickness and thus has a smaller inner diameter than the second housing region.
  • connection region has an inwardly projecting abutment section, on which a terminating element can be brought into contact with the abutment.
  • the contact portion may advantageously be circumferentially formed on the inner circumference of the end element and thus rotationally symmetrical as an annular projection.
  • the (inner) cross section of the connection region is thus tapered.
  • the inner radius of the contact section is expediently smaller than the inner radius of the sealing section of the first housing section.
  • inlet and outlet ports are expediently along the longitudinal axis or - Extension of the housing arranged, which are particularly preferably axially aligned or aligned.
  • the housing is formed of a light metal, such as aluminum or an aluminum alloy, or of a temperature-resistant plastic. This is particularly advantageous because the housing is designed as a flow press.
  • the dryer further comprises a closure element comprising a filter to filter the cooling medium supplied to the dryer.
  • the closing element can in particular close an open end of the first housing area.
  • connection region has two lateral openings which are separated from one another by the built-in terminating element, which has a structure correspondingly separated by the filter.
  • an inlet opening arranged adjacent to the first housing area can supply the cooling medium to the filter of the closing element, after which it flows into the second housing area or one of the second housing area adjacent region of the connection region, at which the outlet opening is provided.
  • a production method for a housing of a dryer for a cooling medium in a cooling medium circuit comprising the steps of providing a workpiece blank, and pressure forming by extrusion of the workpiece blank such that the workpiece blank is a one-piece unit of a first and a second housing portion and an intermediate terminal portion is formed with at least one radially outwardly projecting terminal portion.
  • a housing according to the invention can thus be produced by means of a single pressure-forming step by using an extrusion molding process.
  • a first exemplary, preferred embodiment of the housing according to the invention of a dryer for a cooling medium in a cooling medium circuit is shown.
  • the housing has a first housing region 2, a second housing region 4 and a connection region 6.
  • the first housing portion 2, the second housing portion 4 and the terminal portion 6 are arranged in a hollow cylindrical shape with expediently circular or circular inner cross-section such that they adjoin one another at the end and are preferably arranged substantially concentric to the longitudinal axis X of the housing. This results in a housing which is formed substantially tubular or rod-shaped.
  • the second housing region 4 can be provided as a region (eg container) which is open on one side and has a bottom, which is arranged on an end of the second housing region 4 facing away from the connection region 6.
  • the second housing region 4 is designed as a region (eg tube) which is open on both sides and whose end facing the connection region 6 is closed in a fluid-tight manner with a closure element or cover.
  • the second housing region 4 has a cross-sectional shape that is constant along its longitudinal extent (ie, parallel to the longitudinal axis X).
  • the second housing portion 4 is tubular with a round, expediently circular, cross-sectional configuration.
  • the second housing area 4 has a longitudinal extension (ie, parallel to the longitudinal axis X), which is significantly greater than the longitudinal extent of the first housing portion 2 or the terminal portion 6.
  • the longitudinal extension of the second housing region 4 may be 4 to 11 times, preferably 6 to 9 times and particularly preferably approximately 7.5 times the longitudinal extent of the connection region 6.
  • the second housing portion 4 is also advantageously formed thin-walled, wherein the wall thickness of the second housing portion 4 about 0.01 - 0.1, preferably about 0.02 - 0.07 and particularly preferably about 0.04 times the diameter of the second housing portion equivalent.
  • the second housing portion 4 is formed as about the longitudinal axis X rotationally symmetrical body.
  • the first housing portion 2 is advantageously formed as a tubular portion or body with open end on both sides.
  • the first housing portion 2 may be formed as about the longitudinal axis X rotationally symmetrical body.
  • the first housing region 2 has (along the longitudinal axis X) an average or average wall thickness which is greater than the wall thickness of the second housing region 4.
  • the average wall thickness is about 1.3-3 times, preferably about 1.8-2.6 and particularly preferably about 2 times greater than the wall thickness of the second housing area 4.
  • the first housing area 2 along its longitudinal extent (ie parallel to the longitudinal axis X) no constant cross-sectional shape.
  • the outer cross section of the first housing portion 2 and the second housing portion 4 may be identical in size and / or shape.
  • the first housing region 2 has an engagement section 8 on its inner side at an end region opposite or opposite the connection region 6 or the second housing region 4, with which end element 52 (FIG. Fig. 4 ) is engageable.
  • the engagement portion may be formed, for example, as an internal thread. It is understood that the engagement portion may also have any other Verrastkonfiguration, for example, can be provided as a bayonet lock or in the form of radial ribs.
  • the engagement portion 8 advantageously has an inner radius or diameter which is smaller than the inner radius or diameter of the second housing portion 4 is.
  • the first housing region 2 has a sealing section 10, on which a sealing body 54 of the closure element 52 (FIG. Fig. 4 ) Can be brought to the plant.
  • connection region 6 furthermore has an inwardly projecting abutment section 20, which can be designed as a circumferentially extending radial projection.
  • the inner radius of the contact portion 20 is expediently smaller than the inner radius of the sealing portion 10 of the first housing portion 2.
  • the connection portion 6 in the region of the contact portion 20 in relation to the inner configuration of the first housing portion 2 is again tapered.
  • the closing element 52 can be abuttingly brought into abutment ( Fig. 4 ), so that a fluid flow between the contact portion 20 and mounted end member 52 is not possible.
  • FIG. 4 is a cross-sectional view of a preferred exemplary embodiment of the dryer of the invention.
  • the dryer has a drying means 50, which is arranged essentially in the second housing region 4.
  • the end member 52 is threadedly engaged with and fixed to the engaging portion 8 of the first housing portion 2.
  • the sealing body 54 for example, an O-ring, which is sealingly engageable with the sealing portion 10 of the first housing portion 2 and thus seals the housing to the outside.
  • a filter region 56 is provided, the end of which essentially rests against the contact section 20 in a fluid-tight manner.
  • the fluid entering through the inlet opening 14 is forced to flow through the filter area 56. From there, it then passes into the second housing region 4, in which the drying agent 50 is arranged in order to extract moisture from the cooling medium. Subsequently, the cooling medium is led out of the housing again via the outlet opening 16.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Description

Die vorliegende Erfindung bezieht sich auf ein Gehäuse eines Trockners für ein Kühlmedium in einem Kühlmedienkreislauf, insbesondere einer Klimaanlage eines Fahrzeugs, auf einen Trockner für ein Kühlmedium in einem Kühlmedienkreislauf, ebenfalls insbesondere einer Klimaanlage eines Fahrzeugs, sowie auf ein Herstellungsverfahren für ein solches Gehaüse.The present invention relates to a housing of a dryer for a cooling medium in a cooling medium circuit, in particular an air conditioner of a vehicle, to a dryer for a cooling medium in a cooling medium circuit, also in particular an air conditioning system of a vehicle, and to a manufacturing method for such a Gehaüse.

Trocknergehäuse der in Rede stehenden Art sind hinlänglich aus dem Stand der Technik bekannt und finden in Trocknern Anwendung, welche dazu dienen, Verunreinigungen und Feuchtigkeit aus einem Kühlmedium herauszufiltern und aufzunehmen. Häufig werden derartige Trockner zur Reinigung des Kühlmediums in Klimaanlagen eines Fahrzeugs eingesetzt, um die Feuchtigkeit im System mittels eines Trocknungsmittels aufzunehmen.Dryer housing of the type in question are well known in the art and find application in dryers, which serve to filter out impurities and moisture from a cooling medium and absorb. Frequently, such dryers are used for cleaning the cooling medium in air conditioning systems of a vehicle to absorb the moisture in the system by means of a desiccant.

Die DE 10 2005 023 103 A1 zeigt einen Trockner einer Klimaanlage eines Fahrzeugs, bei welchem ein Gehäuse mit einem Trocknungsmittel befüllt ist. Das Gehäuse ist aus einem ersten Gehäuseteil und einem zweiten Gehäuseteil ausgebildet, die über ein Verschweißungsverfahren miteinander fluiddicht verbunden sind. Das erste Gehäuseteil weist zwei Öffnungen auf, an welche Verbindungselemente zur Verbindung mit Medienleitungen angebracht bzw. verschweißt sind. Problematisch bei derartigen Trocknergehäusen ist jedoch, dass insbesondere an den Schweiß- oder Lötstellen Undichtigkeiten auftreten können und somit die Funktionalität des Trockners nicht gewährleistet werden kann. Darüber hinaus weist das Gehäuse im Bereich der Verbindungsstellen (Schweißnähte und Lötstellen) nachteilige Werkstoffeigenschaften hinsichtlich der Zähigkeit und Dehnfähigkeit auf, so dass ebenfalls ein Versagen des Trockners aufgrund von Rissbildung im Gehäuse möglich ist.The DE 10 2005 023 103 A1 shows a dryer of an air conditioner of a vehicle, in which a housing is filled with a desiccant. The housing is formed from a first housing part and a second housing part, which are fluid-tightly connected to one another via a welding method. The first housing part has two openings, to which connecting elements for connection to media lines are attached or welded. However, a problem with such dryer housings is that leaks can occur, in particular at the welds or solder joints, and thus the functionality of the dryer can not be guaranteed. In addition, the housing in the region of the joints (welds and solder joints) disadvantageous material properties in terms of toughness and ductility so that also a failure of the dryer due to cracking in the housing is possible.

Die DE 10 2005 024 158 A1 betrifft einen Trockner für ein Kühlmedium in einem Kühlmedienkreislauf einer Klimaanlage eines Fahrzeugs, umfassend ein Gehäuse, welches als ein einseitig offenes Gehäuse mit einem Boden und einem gegenüberliegenden offenen Ende ausgeführt ist, das von einem anschlussfreien Verschlusselement verschlossen ist.The DE 10 2005 024 158 A1 relates to a dryer for a cooling medium in a cooling medium circuit of an air conditioning system of a vehicle, comprising a housing, which is designed as a unilaterally open housing with a bottom and an opposite open end, which is closed by a connection-free closure element.

Die DE 10 2008 034 631 betrifft eine Trocknereinrichtung zum Trocknen und Bevorraten eines Kältemittels, mit wenigstens einem Verbindungsteil, mittels welchem die Trocknereinrichtung an einem Kondensator einer Kälteanlage festlegbar ist.The DE 10 2008 034 631 relates to a drying device for drying and storage of a refrigerant, with at least one connecting part, by means of which the drying device can be fixed to a condenser of a refrigeration system.

Die US-2004/007012 A1 betrifft einen Trockner für ein Kühlmedium in einem Kühlmedienkreislauf mit einem zylindrischen Körper und einer Kappe, die das untere Ende des Körpers abschließt, wobei der Körper einen Abstützbereich für einen Filter aufweist, der den Körper in einen oberen und einen unteren Bereich trennt.The US-2004/007012 A1 relates to a dryer for a cooling medium in a cooling medium circuit with a cylindrical body and a cap which closes the lower end of the body, the body having a support region for a filter which separates the body into an upper and a lower region.

Die EP 1 762 798 A1 offenbart ein Verfahren zur Herstellung eines Behälters zum Einsatz in einem Wärmetauscher-System, wobei ein gewalzter Metallzylinder mit einem Rohrabschnitt, einem ersten Ende, welches durch einen Stopfen verschließbar ist, und einem zweiten Ende, an dem ein Haltebereich und ein nach innen ragender Absatz vorgesehen ist, gebildet wird.The EP 1 762 798 A1 discloses a method for manufacturing a container for use in a heat exchanger system, wherein a rolled metal cylinder is provided with a pipe section, a first end closable by a plug, and a second end provided with a retaining portion and an inwardly projecting shoulder is formed.

EP 1 762 798 offenbart auch ein Gehaüse gemäß Oberbegriff des Anspruchs 1. EP 1 762 798 also discloses a housing according to the preamble of claim 1.

Es ist somit Aufgabe der vorliegenden Erfindung, ein Gehäuse eines Trockners für ein Kühlmedium in einem Kühlmedienkreislauf, einen Trockner für ein Kühlmedium in einem Kühlmedienkreislauf, insbesondere für eine Klimaanlage eines Fahrzeugs sowie ein entsprechendes Herstellungsverfahren vorzusehen, bei welchen die Gefahr von Undichtigkeiten vermieden wird und welche eine hohe Werkstoffeigenschaft und -qualität aufweisen.It is therefore an object of the present invention to provide a housing of a dryer for a cooling medium in a cooling medium circuit, a dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle and a corresponding manufacturing method in which the risk of leaks is avoided and which have a high material property and quality.

Diese Aufgabe wird durch ein Gehäuse eines Trockners für ein Kühlmedium in einem Kühlmedienkreislauf, insbesondere einer Klimaanlage eines Fahrzeugs, mit den Merkmalen des Anspruchs 1 und durch einen Trockner für ein Kühlmedium in einem Kühlmedienkreislauf, insbesondere einer Klimaanlage eines Fahrzeugs, mit den Merkmalen des Anspruchs 10 gelöst. Ferner vorgesehen ist ein Herstellungs- 2verfahren für ein Gehäuse eines Trockners mit den Merkmalen des Anspruchs 13. Bevorzugte Ausführungsformen ergeben sich aus den abhängigen Ansprüchen.This object is achieved by a housing of a dryer for a cooling medium in a cooling medium circuit, in particular an air conditioning system of a vehicle, with the features of claim 1 and by a dryer for a cooling medium in a cooling medium circuit, in particular an air conditioning system of a vehicle, having the features of claim 10 solved. Also provided is a production method for a housing of a dryer with the features of claim 13. Preferred embodiments are evident from the dependent claims.

Erfindungsgemäß ist ein Gehäuse eines Trockners für ein Kühlmedium in einem Kühlmedienkreislauf, insbesondere einer Klimalange eines Fahrzeugs, vorgesehen, umfassend einen ersten und einen zweiten Gehäusebereich, welche jeweils hohlzylinderförmig ausgebildet sind, und einen Anschlussbereich, welcher zwischen dem ersten und dem zweiten Gehäusebereich angeordnet und hohlzylinderförmig ausgebildet ist, wobei der Anschlussbereich zumindest eine radiale Öffnung aufweist, und wobei das Gehäuse als einteiliges Fließpressteil ausgebildet ist. Das Gehäuse dient zweckmäßigerweise zur Anwendung als Trocknergehäuse für ein Kühlmedium in einem Kühlmedienkreislauf, welcher der Kühlmedienkreislauf einer Klimalange eines Fahrzeugs bzw. Kraftfahrzeugs sein kann. Hierfür weist das Gehäuse einen ersten und zweiten Gehäusebereich auf, die jeweils hohlzylinderförmig ausgebildet sind. Entsprechend ist ebenfalls der Anschlussbereich hohlzylinderförmig ausgebildet. Hierbei können der erste und der zweite Gehäusebereich sowie der Anschlussbereich zueinander konzentrisch angeordnet sein, sodass diese parallel zu einer Längsachse des Gehäuses angeordnet sind.According to the invention, a housing of a dryer for a cooling medium in a cooling medium circuit, in particular a climalange of a vehicle provided, comprising a first and a second housing portion, which are each formed in a hollow cylinder, and a connection area which is arranged between the first and the second housing portion and a hollow cylinder is formed, wherein the connecting portion has at least one radial opening, and wherein the housing is formed as a one-piece flow press. The housing is expediently used as a dryer housing for a cooling medium in a cooling medium circuit, which may be the cooling medium circuit of a climate-controlled vehicle or motor vehicle. For this purpose, the housing has a first and second housing portion, which are each formed in a hollow cylinder. Accordingly, the connection area is likewise hollow-cylindrical. Here, the first and the second housing portion and the terminal portion may be arranged concentrically with each other, so that they are arranged parallel to a longitudinal axis of the housing.

Die Querschnittskonfigurationen des ersten und zweiten Gehäusebereichs sowie des Anschlussbereichs können beliebig ausgestaltet sein, beispielsweise rund oder eckig bzw. polygonförmig. Zweckmäßigerweise kann der zweite Gehäusebereich an seinem dem ersten Gehäusebereich gegenüberliegenden Ende verschlossen sein. Dies kann mittelbar über zusätzliche Verschlusselemente oder unmittelbar durch eine Ausbildung des zweiten Gehäusebereichs als einseitig geschlossener Rohrkörper (d. h. mit einem geschlossenen Boden) erfolgen. Gleiches kann für den ersten Gehäusebereich gelten. Der zwischen angeordnete Anschlussbereich weist vorteilhafterweise zumindest eine radiale Öffnung auf. Die Öffnung kann somit radial bzw. lateral bzw. am Umfang des Anschlussbereichs bzw. quer, vorzugsweise senkrecht, zur Längsachse des Gehäuses ausgebildet sein. Um Undichtigkeiten und hohe Werkstoffeigenschaften zu gewährleisten, ist das Gehäuse als einteiliges Fließpressteil ausgebildet. In anderen Worten, ist das Gehäuse einteilig bzw. einstückig bzw. integral aus einem vorzugsweise homogenen Material ausgebildet. Infolgedessen weist das Gehäuse erfindungsgemäß keine Fügebereiche von verschiedenen Elementen auf, wie dies bei Gehäusen aus dem Stand der Technik bekannt ist. Es wird somit ein rohrförmiges oder stabförmiges Gehäuse bereitgestellt, welches als einstückiger Körper fügekanten- bzw. -bereichefrei ausgebildet ist.The cross-sectional configurations of the first and second housing regions and of the connection region can be configured as desired, for example, round or angular or polygonal. Conveniently, the second housing portion may be closed at its end opposite the first housing portion. This can be done indirectly via additional closure elements or directly by forming the second housing region as a tube body closed on one side (that is to say with a closed bottom). The same can apply to the first housing area. The connection region arranged between advantageously has at least one radial opening. The opening can thus be formed radially or laterally or on the circumference of the connection region or transversely, preferably perpendicularly, to the longitudinal axis of the housing. To ensure leaks and high material properties, the housing is designed as a one-piece extruded part. In other words, the housing is integrally or integrally formed of a preferably homogeneous material. As a result, the housing according to the invention has no joining areas of different elements, as is known in the case of the prior art. Thus, a tubular or rod-shaped housing is provided, which is formed as a one-piece body joining edge or area-free.

Erfindungsgemäß weist der Anschlussbereich einen radial nach außen ragenden Anschlussabschnitt auf, in welchem die zumindest eine Öffnung vorgesehen ist. Der Anschlussabschnitt kann somit zweckmäßigerweise als radial oder lateral über den Außenumfang des ersten bzw. zweiten Gehäusebereichs oder Anschlussbereichs vorragender Vorsprung ausgebildet sein, welcher die zumindest eine Öffnung umgibt. Die Öffnung kann somit in dem nach außen ragenden Anschlussabschnitt vorgesehen sein.According to the invention, the connection region has a connection section projecting radially outwards, in which the at least one opening is provided. The connection section can thus be expediently designed as a projection which protrudes radially or laterally beyond the outer circumference of the first or second housing region or connection region and which surrounds the at least one opening. The opening can thus be provided in the outwardly projecting connection section.

Vorteilhafterweise weist der Anschlussbereich zwei radiale Öffnungen auf. So können die beiden Öffnungen als Einlass- und Auslassöffnung ausgebildet sein. Besonders vorteilhafterweise sind die beiden Öffnungen im gleichen Anschlussabschnitt ausgebildet. Alternativ können jedoch auch zwei nach außen ragende Anschlussabschnitte vorgesehen sein, welche jeweils eine Öffnung beherbergen. Die Querschnittsform der Öffnungen kann beliebig gestaltet sein, beispielsweise rechteckig oder vieleckig. Vorzugsweise ist diese jedoch rund, insbesondere kreisrund.Advantageously, the connection region has two radial openings. Thus, the two openings may be formed as an inlet and outlet opening. Particularly advantageously, the two openings are formed in the same connection section. Alternatively, however, two outwardly projecting terminal portions may be provided, each housing an opening. The Cross-sectional shape of the openings can be designed arbitrarily, for example, rectangular or polygonal. Preferably, however, this is round, in particular circular.

Zweckmäßigerweise weist der Anschlussabschnitt eine Anschlussfläche zur Anordnung an einem Kondensator auf, welche vorzugsweise konkav ausgebildet ist. Die Anschlussfläche weist vorteilhafterweise eine runde, vorzugsweise kreisrunde, Oberflächenkonfiguration mit einer vorzugsweise entlang der Längsachse des Gehäuses konstanten Querschnittsform auf.Expediently, the connection section has a connection surface for arrangement on a capacitor, which is preferably concave. The connection surface advantageously has a round, preferably circular, surface configuration with a cross-sectional shape that is preferably constant along the longitudinal axis of the housing.

Vorzugsweise ist die Wandstärke des ersten Gehäusebereichs größer als die Wandstärke des zweiten Gehäusebereichs. Hierdurch ist es möglich, dass der erste Gehäusebereich zumindest partiell einer spanenden Umformung unterzogen werden kann, um beispielsweise ein Gewinde für ein Abschlusselement vorzusehen.Preferably, the wall thickness of the first housing portion is greater than the wall thickness of the second housing portion. This makes it possible that the first housing portion can be at least partially subjected to a cutting forming, for example, to provide a thread for a closure element.

Bevorzugterweise weisen der erste und zweite Gehäusebereich eine runde, vorzugsweise kreisrunde, Querschnittskonfiguration auf. Der erste und zweite Gehäusebereich können somit zweckmäßigerweise eine im Wesentlichen rotationssymmetrische Querschnittsform aufweisen. Auch der Anschlussbereich kann eine runde, bzw. kreisrunde Innenkonfiguration aufweisen. An dessen Außenseite bzw. -fläche ist jedoch vorteilhafterweise der radial nach außen ragenden Anschlussabschnitt vorgesehen.The first and second housing regions preferably have a round, preferably circular, cross-sectional configuration. The first and second housing region can thus expediently have a substantially rotationally symmetrical cross-sectional shape. The connection area can also have a round or circular interior configuration. However, on the outside or surface of the radially outwardly projecting connection portion is advantageously provided.

Zweckmäßigerweise weisen der erste und zweite Gehäusebereich den gleichen Außendurchmesser auf. Hierdurch konstituieren der erste und zweite Gehäusebereich einen im Wesentlichen rohr- oder stabförmigen Körper. Der Innendurchmesser des ersten und zweiten Gehäusebereichs muss jedoch nicht identisch sein, da der erste Gehäusebereich zweckmäßigerweise eine größere Wandstärke aufweist und somit einen geringeren Innendurchmesser besitzt als der zweite Gehäusebereich.Conveniently, the first and second housing portion on the same outer diameter. As a result, the first and second housing regions constitute a substantially tubular or rod-shaped body. However, the inner diameter of the first and second housing region does not have to be identical, since the first housing region expediently has a greater wall thickness and thus has a smaller inner diameter than the second housing region.

Weiterhin bevorzugt weist der erste Gehäusebereich einen Eingriffsabschnitt auf, mit welchem ein Abschlusselement in Eingriff bringbar ist. Der Eingriffsabschnitt ist hierbei vorzugsweise an der Innenseite bzw. -fläche des ersten Gehäusebereichs vorzugsweise an dessen dem zweiten Gehäusebereich abgewandten Endbereich vorgesehen. Der Eingriffsabschnitt kann somit beispielsweise als Innengewinde ausgebildet sein, dessen Radius vorteilhafterweise kleiner als der Innenradius des zweiten Gehäusebereichs ist.Further preferably, the first housing portion has an engagement portion, with which a closure element can be brought into engagement. In this case, the engagement section is preferably provided on the inside or surface of the first housing region, preferably on its end region facing away from the second housing region. The engagement portion may thus be formed, for example, as an internal thread whose radius is advantageously smaller than the inner radius of the second housing portion.

In einer weiteren bevorzugten Ausführungsform weist der erste Gehäusebereich zumindest einen Dichtungsabschnitt, vorzugsweise zwei Dichtungsabschnitte, auf, an welchem ein Dichtungskörper eines Abschlusselements zur Anlage bringbar ist. Der Dichtungsabschnitt ist hierbei zweckmäßigerweise an der Innenseite bzw. -oberfläche des ersten Gehäusebereichs an der dem zweiten Gehäusebereich zugewandten Seite bzw. Ende vorgesehen. Dieser kann eine beliebige Querschnittskonfiguration aufweisen, ist jedoch vorteilhafterweise rotationssymmetrisch um die Längsachse des Gehäuses. Infolgedessen kann der Dichtungsabschnitt einen (Innen-)Radius aufweisen, welcher geringer als der (Innen-)Radius des Eingriffsabschnitts ist, sodass sich der erste Gehäusebereich, ausgehend von seinem dem zweiten Gehäusebereich abgewandten Ende in Richtung des zweiten Gehäusebereichs verjüngt.In a further preferred embodiment, the first housing region has at least one sealing section, preferably two sealing sections, on which a sealing body of a closing element can be brought into abutment. The sealing section is expediently provided on the inside or surface of the first housing region on the side or end facing the second housing region. This may have any cross-sectional configuration, but is advantageously rotationally symmetrical about the longitudinal axis of the housing. As a result, the sealing portion may have an (inner) radius which is smaller than the (inner) radius of the engagement portion, so that the first housing portion, starting from its end facing away from the second housing portion, tapers in the direction of the second housing portion.

Erfindungsgemäß weist der Anschlussbereich einen nach innen ragenden Anlageabschnitt auf, an welchem ein Abschlusselement sich abstützend zur Anlage bringbar ist. Der Anlageabschnitt kann vorteilhafterweise umlaufend am Innenumfang des Abschlusselements und somit rotationssymmetrisch als ringförmiger Vorsprung ausgebildet sein. Im Bereich des Anlageabschnitts ist somit der (Innen-)Querschnitt des Anschlussbereichs verjüngt. Der Innenradius des Anlageabschnitts ist zweckmäßigerweise kleiner als der Innenradius des Dichtungsabschnitts des ersten Gehäusebereichs. In einem Gehäuse mit zwei radialen Öffnungen (d. h. Einlass- und Auslassöffnung) kann der Anlageabschnitt somit zwischen den beiden Öffnungen vorgesehen sein. Hierbei sind Einlass- und Auslassöffnung zweckmäßigerweise entlang der Längsachse bzw. - erstreckung des Gehäuses angeordnet, wobei diese besonders vorzugsweise axial zueinander ausgerichtet bzw. fluchtend sind.According to the invention, the connection region has an inwardly projecting abutment section, on which a terminating element can be brought into contact with the abutment. The contact portion may advantageously be circumferentially formed on the inner circumference of the end element and thus rotationally symmetrical as an annular projection. In the region of the contact section, the (inner) cross section of the connection region is thus tapered. The inner radius of the contact section is expediently smaller than the inner radius of the sealing section of the first housing section. In a housing with two radial openings (ie, inlet and outlet openings), the abutment section can thus be provided between the two openings. Here, inlet and outlet ports are expediently along the longitudinal axis or - Extension of the housing arranged, which are particularly preferably axially aligned or aligned.

Zweckmäßigerweise ist das Gehäuse aus einem Leichtmetall, wie Aluminium oder einer Aluminiumlegierung, oder aus einem temperaturbeständigen Kunststoff ausgebildet. Dies ist besonders vorteilhaft, da das Gehäuse als Fließpressteil ausgebildet ist.Conveniently, the housing is formed of a light metal, such as aluminum or an aluminum alloy, or of a temperature-resistant plastic. This is particularly advantageous because the housing is designed as a flow press.

Weiterhin erfindungsgemäß ist ein Trockner für ein Kühlmedium in einem Kühlmedienkreislauf, insbesondere einer Klimaanlage eines Fahrzeugs, vorgesehen, umfassend ein Gehäuse mit einem darin angeordneten Trocknungsmittel, wobei das Gehäuse einen ersten und einen zweiten Gehäusebereich, welche jeweils hohlzylinderförmig ausgebildet sind, und einen Anschlussbereich aufweist, welcher zwischen dem ersten und dem zweiten Gehäusebereich angeordnet und hohlzylinderförmig ausgebildet ist, wobei der Anschlussbereich zumindest eine radiale Öffnung aufweist, und wobei das Gehäuse als einteiliges Fließpressteil ausgebildet ist. Besonders zweckmäßigerweise ist das Trocknungsmittel im Wesentlichen innerhalb des zweiten Gehäusebereichs des Gehäuses angeordnet, wobei dieses vorzugsweise partiell in den Anschlussbereich ragen kann. Das Trocknungsmittel kann in Form eines losen Granulats oder alternativ in Form eines in dem Gehäuse angeordneten Trocknerbeutels ausgebildet sein.According to the invention, a dryer for a cooling medium in a cooling medium circuit, in particular an air conditioning system of a vehicle is provided, comprising a housing with a desiccant disposed therein, wherein the housing has a first and a second housing portion, which are each formed in a hollow cylindrical shape, and a connection area, which is arranged between the first and the second housing portion and formed in a hollow cylindrical shape, wherein the connecting portion has at least one radial opening, and wherein the housing is formed as a one-piece flow press. Particularly desirably, the desiccant is disposed substantially within the second housing portion of the housing, which may preferably protrude partially into the connection area. The drying agent may be in the form of loose granules or alternatively in the form of a dryer bag arranged in the housing.

Vorteilhafterweise weist der Trockner weiterhin ein Abschlusselement auf, welches einen Filter umfasst, um das dem Trockner zugeführte Kühlmedium zu filtrieren. Das Abschlusselement kann insbesondere ein offenes Ende des ersten Gehäusebereichs verschließen.Advantageously, the dryer further comprises a closure element comprising a filter to filter the cooling medium supplied to the dryer. The closing element can in particular close an open end of the first housing area.

Zweckmäßigerweise weist der Anschlussbereich zwei laterale Öffnungen auf, welche durch das eingebaute Abschlusselement, das einen entsprechend durch den Filter trennenden Aufbau aufweist, voneinander getrennt sind. So kann insbesondere eine benachbart zum ersten Gehäusebereich angeordnete Einlassöffnung dem Filter des Abschlusselements das Kühlmedium zuführen, nach dessen Durchströmen es in den zweiten Gehäusebereich oder einem dem zweiten Gehäusebereich benachbarten Bereich des Anschlussbereichs gelangt, an welchem die Auslassöffnung vorgesehen ist.Expediently, the connection region has two lateral openings which are separated from one another by the built-in terminating element, which has a structure correspondingly separated by the filter. Thus, in particular, an inlet opening arranged adjacent to the first housing area can supply the cooling medium to the filter of the closing element, after which it flows into the second housing area or one of the second housing area adjacent region of the connection region, at which the outlet opening is provided.

Es versteht sich, dass die weiteren Merkmale und Vorteile des erfindungsgemäßen Gehäuses ebenfalls in dem erfindungsgemäßen Trockner Anwendung finden können.It is understood that the other features and advantages of the housing according to the invention can also be found in the dryer according to the invention application.

Weiterhin erfindungsgemäß vorgesehen ist ein Herstellungsverfahren für ein Gehäuse eines Trockners für ein Kühlmedium in einem Kühlmedienkreislauf, insbesondere einer Klimaanlage eines Fahrzeugs, umfassend die Schritte: Bereitstellen eines Werkstückrohlings, und Druckumformen mittels Fließpressens des Werkstückrohlings derart, dass aus dem Werkstückrohling eine einstückige Einheit aus einem ersten und einem zweiten Gehäusebereich und einem dazwischen liegenden Anschlussbereich mit zumindest einem radial nach außen ragenden Anschlussabschnitt gebildet wird. Ein erfindungsgemäßes Gehäuse kann somit mittels eines einzigen Druckumformschritts durch Verwendung eines Fließpressverfahrens hergestellt werden. Insbesondere ist es möglich, ein vorbeschriebenes Gehäuse mit einem radial nach außen ragenden Anschlussabschnitt an dem Anschlussbereich sowie sich daran anschließenden ersten und zweiten Gehäusebereichen auszubilden, sodass zwischen diesen Bereichen keine Fügestellen aufgrund von Verschweißungen oder Verlötungen bestehen.Further provided according to the invention is a production method for a housing of a dryer for a cooling medium in a cooling medium circuit, in particular an air conditioning system of a vehicle, comprising the steps of providing a workpiece blank, and pressure forming by extrusion of the workpiece blank such that the workpiece blank is a one-piece unit of a first and a second housing portion and an intermediate terminal portion is formed with at least one radially outwardly projecting terminal portion. A housing according to the invention can thus be produced by means of a single pressure-forming step by using an extrusion molding process. In particular, it is possible to form a previously described housing with a radially outwardly projecting connection section on the connection region as well as adjoining first and second housing regions, so that there are no joints due to welding or soldering between these regions.

Es versteht sich, dass sämtliche durch den Druckumformschritt herstellbaren weiteren Merkmale des erfindungsgemäßen Gehäuses ebenfalls Gegenstand des erfindungsgemäßen Herstellungsverfahrens sein können. Dies betrifft insbesondere die Ausbildung des Dichtungsabschnitts, des Eingriffsabschnitts, des Anlageabschnitts und der Anschlussfläche.It is understood that all further features of the housing according to the invention which can be produced by the pressure-forming step can likewise be the subject of the production method according to the invention. This relates in particular to the formation of the sealing section, the engagement section, the abutment section and the connection surface.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung von bevorzugten Ausführungsformen mit Bezug auf die beigefügten Figuren, wobei einzelne Merkmal von verschiedenen Ausführungsformen zu neuen Ausführungsformen kombiniert werden können. Es zeigen:

Fig. 1
eine perspektivische Ansicht einer ersten Ausführungsform des erfindungsgemäßen Gehäuses eines Trockners.
Fig. 2
eine Querschnittsansicht einer bevorzugten Ausführungsform des erfindungsgemäßen Gehäuses eines Trockners.
Fig. 3
eine Seitenansicht einer bevorzugten Ausführungsform des erfindungsgemäßen Gehäuses eines Trockners.
Fig. 4
eine Querschnittsansicht einer bevorzugten Ausführungsform des erfindungsgemäßen Trockners.
Further advantages and features of the invention will become apparent from the following description of preferred embodiments with reference to the accompanying figures, wherein individual features of various embodiments may be combined to form novel embodiments. Show it:
Fig. 1
a perspective view of a first embodiment of the housing according to the invention a dryer.
Fig. 2
a cross-sectional view of a preferred embodiment of the housing according to the invention a dryer.
Fig. 3
a side view of a preferred embodiment of the housing according to the invention a dryer.
Fig. 4
a cross-sectional view of a preferred embodiment of the dryer according to the invention.

In den Fig. 1 - 3 ist eine erste beispielhafte, bevorzugte Ausführungsform des erfindungsgemäßen Gehäuses eines Trockners für ein Kühlmedium in einem Kühlmedienkreislauf dargestellt. Das Gehäuse weist einen ersten Gehäusebereich 2, einen zweiten Gehäusebereich 4 sowie einen Anschlussbereich 6 auf. Wie ersichtlich, sind der erste Gehäusebereich 2, der zweite Gehäusebereich 4 und der Anschlussbereich 6 hohlzylinderförmig mit zweckmäßigerweise rundem oder kreisrundem Innenquerschnitt derart angeordnet, dass diese sich stirnseitig aneinander anschließen und vorzugsweise im Wesentlichen konzentrisch zur Längsachse X des Gehäuses angeordnet sind. Hierdurch ergibt sich ein Gehäuse, welches im Wesentlichen rohrförmig oder stabförmig ausgebildet ist.In the Fig. 1-3 a first exemplary, preferred embodiment of the housing according to the invention of a dryer for a cooling medium in a cooling medium circuit is shown. The housing has a first housing region 2, a second housing region 4 and a connection region 6. As can be seen, the first housing portion 2, the second housing portion 4 and the terminal portion 6 are arranged in a hollow cylindrical shape with expediently circular or circular inner cross-section such that they adjoin one another at the end and are preferably arranged substantially concentric to the longitudinal axis X of the housing. This results in a housing which is formed substantially tubular or rod-shaped.

Der zweite Gehäusebereich 4 kann als einseitig offener Bereich (z. B. Behälter) mit einem Boden, welcher an einem den Anschlussbereich 6 abgewandten Ende des zweiten Gehäusebereichs 4 angeordnet ist, versehen sein. Vorteilhafterweise ist der zweite Gehäusebereich 4 jedoch als beidseitig offener Bereich (z. B. Rohr) ausgebildet, dessen dem Anschlussbereich 6 gegenüberliegendes Ende mit einem Verschlusselement oder -deckel fluiddicht verschlossen ist. Der zweite Gehäusebereich 4 weist eine entlang seiner Längserstreckung (d. h. parallel zur Längsachse X) konstante Querschnittsform auf. Besonders vorteilhafterweise ist der zweite Gehäusebereich 4 rohrförmig mit einer runden, zweckmäßigerweise kreisrunden, Querschnittskonfiguration ausgebildet. Der zweite Gehäusebereich 4 weist eine Längserstreckung (d. h. parallel zur Längsachse X) auf, welche deutlich größer als die Längserstreckung des ersten Gehäusebereichs 2 oder des Anschlussbereichs 6 ist. So kann die Längserstreckung des zweiten Gehäusebereichs 4 das 4 - 11-fache, vorzugsweise das 6 - 9-fache und besonders bevorzugterweise ca. das 7,5-fache der Längserstreckung des Anschlussbereichs 6 betragen. Der zweite Gehäusebereich 4 ist darüber hinaus vorteilhafterweise dünnwandig ausgebildet, wobei die Wandstärke des zweiten Gehäusebereichs 4 etwa 0,01 - 0,1, vorzugsweise etwa 0,02 - 0,07 und besonders bevorzugterweise etwa 0,04-mal dem Durchmesser des zweiten Gehäusebereichs entspricht. Vorteilhafterweise ist der zweite Gehäusebereich 4 als um die Längsachse X rotationssymmetrischer Körper ausgebildet.The second housing region 4 can be provided as a region (eg container) which is open on one side and has a bottom, which is arranged on an end of the second housing region 4 facing away from the connection region 6. Advantageously, however, the second housing region 4 is designed as a region (eg tube) which is open on both sides and whose end facing the connection region 6 is closed in a fluid-tight manner with a closure element or cover. The second housing region 4 has a cross-sectional shape that is constant along its longitudinal extent (ie, parallel to the longitudinal axis X). Particularly advantageously, the second housing portion 4 is tubular with a round, expediently circular, cross-sectional configuration. The second housing area 4 has a longitudinal extension (ie, parallel to the longitudinal axis X), which is significantly greater than the longitudinal extent of the first housing portion 2 or the terminal portion 6. Thus, the longitudinal extension of the second housing region 4 may be 4 to 11 times, preferably 6 to 9 times and particularly preferably approximately 7.5 times the longitudinal extent of the connection region 6. The second housing portion 4 is also advantageously formed thin-walled, wherein the wall thickness of the second housing portion 4 about 0.01 - 0.1, preferably about 0.02 - 0.07 and particularly preferably about 0.04 times the diameter of the second housing portion equivalent. Advantageously, the second housing portion 4 is formed as about the longitudinal axis X rotationally symmetrical body.

Der erste Gehäusebereich 2 ist vorteilhafterweise als rohrförmiger Bereich oder Körper mit beidseitige offenem Ende ausgebildet. Insbesondere kann der erste Gehäusebereich 2 als um die Längsachse X rotationssymmetrischer Körper ausgebildet sein. Der erste Gehäusebereich 2 weist (entlang der Längsachse X) eine durchschnittliche bzw. gemittelte Wandstärke auf, die größer als die Wandstärke des zweiten Gehäusebereichs 4 ist. Insbesondere ist die durchschnittliche Wandstärke etwa 1,3 - 3-mal, vorzugsweise etwa 1,8 - 2,6 und besonders bevorzugterweise etwa 2-mal größer als die Wandstärke des zweiten Gehäusebereichs 4. Anders als der zweite Gehäusebereich 4 weist der erste Gehäusebereich 2 entlang seiner Längserstreckung (d. h. parallel zur Längsachse X) keine konstante Querschnittsform auf. So kann der Außenquerschnitt vom ersten Gehäusebereich 2 und zweiten Gehäusebereich 4 in Größe und/oder Form identisch sein. Jedoch weist der erste Gehäusebereich 2 an einem dem Anschlussbereich 6 bzw. dem zweiten Gehäusebereich 4 gegenüberliegenden bzw. entgegengesetzten Endbereich an seiner Innenseite einen Eingriffsabschnitt 8 auf, mit welchem ein Abschlusselement 52 (Fig. 4) in Eingriff bringbar ist. Der Eingriffsabschnitt kann beispielsweise als Innengewinde ausgebildet sein. Es versteht sich, dass der Eingriffsabschnitt auch eine beliebig andere Verrastkonfiguration aufweisen kann, beispielsweise als Bajonettverschluss oder in Form von radialen Rippen vorgesehen sein kann. Der Eingriffsabschnitt 8 weist vorteilhafterweise einen Innenradius bzw. -durchmesser auf, der kleiner als der Innenradius bzw. -durchmesser des zweiten Gehäusebereichs 4 ist. An einem dem Anschlussbereich 6 bzw. zweiten Gehäusebereich 4 zugewandtem Endbereich weist der erste Gehäusebereich 2 einen Dichtungsabschnitt 10 auf, an welchem ein Dichtungskörper 54 des Abschlusselements 52 (Fig. 4) zur Anlage bringbar ist. Der Dichtungsabschnitt 10 ist an der Innenseite bzw. -oberfläche des ersten Gehäusebereichs 2 derart angeordnet, dass dieser radial nach innen hervorragt. Der Dichtungsabschnitt 10 bildet hierbei eine zur Längsachse X parallele Fläche aus, welche an der dem Eingriffsabschnitt 8 zugewandten Seite mit einer nach außen gerichteten Abschrägung bzw. Abfasung ausgebildet ist. Der Innendurchmesser des Dichtungsabschnitts, welcher vorteilhafterweise um die Längsachse X rotationssymmetrisch ausgebildet ist, ist zweckmäßigerweise kleiner als der Innendurchmesser des Eingriffsabschnitts 8. In anderen Worten verjüngt sich der Innenquerschnitt des ersten Gehäusebereichs 2 von dessen ersten, offenen Ende hin zu dessen dem Anschlussbereich 6 benachbarten Ende.The first housing portion 2 is advantageously formed as a tubular portion or body with open end on both sides. In particular, the first housing portion 2 may be formed as about the longitudinal axis X rotationally symmetrical body. The first housing region 2 has (along the longitudinal axis X) an average or average wall thickness which is greater than the wall thickness of the second housing region 4. In particular, the average wall thickness is about 1.3-3 times, preferably about 1.8-2.6 and particularly preferably about 2 times greater than the wall thickness of the second housing area 4. Unlike the second housing area 4, the first housing area 2 along its longitudinal extent (ie parallel to the longitudinal axis X) no constant cross-sectional shape. Thus, the outer cross section of the first housing portion 2 and the second housing portion 4 may be identical in size and / or shape. However, the first housing region 2 has an engagement section 8 on its inner side at an end region opposite or opposite the connection region 6 or the second housing region 4, with which end element 52 (FIG. Fig. 4 ) is engageable. The engagement portion may be formed, for example, as an internal thread. It is understood that the engagement portion may also have any other Verrastkonfiguration, for example, can be provided as a bayonet lock or in the form of radial ribs. The engagement portion 8 advantageously has an inner radius or diameter which is smaller than the inner radius or diameter of the second housing portion 4 is. At an end region facing the connection region 6 or second housing region 4, the first housing region 2 has a sealing section 10, on which a sealing body 54 of the closure element 52 (FIG. Fig. 4 ) Can be brought to the plant. The seal portion 10 is disposed on the inner surface of the first housing portion 2 so as to protrude radially inwardly. In this case, the sealing section 10 forms a surface which is parallel to the longitudinal axis X and which is formed on the side facing the engagement section 8 with an outwardly directed chamfer or chamfer. The inner diameter of the sealing portion, which is advantageously rotationally symmetrical about the longitudinal axis X, is expediently smaller than the inner diameter of the engagement portion 8. In other words, the inner cross section of the first housing portion 2 tapers from its first, open end to its end adjacent to the connection region 6 ,

Wie ersichtlich, ist der Anschlussbereich 6 zwischen dem ersten Gehäusebereich 2 und dem zweiten Gehäusebereich 4 angeordnet. In der dargestellten Ausführungsform weist der Anschlussbereich 6 einen Anschlussabschnitt 12 auf, welcher radial nach außen hervorragt. In anderen Worten ist der Anschlussabschnitt 12 als nach außen radial hervorragender Vorsprung ausgebildet, sodass - anders als der erste Gehäusebereich 2 und der zweite Gehäusebereich 4 - der Anschlussbereich 6 hinsichtlich dessen Außenkonfiguration bzw. -querschnitt nicht rotationssymmetrisch um die Längsachse X ausgebildet ist. Dennoch kann der Anschlussbereich 6 hinsichtlich dessen Innenquerschnitt bzw. -konfiguration im Wesentlichen rotationssymmetrisch um die Längsachse X ausgebildet sein. In dem Anschlussabschnitt 12 sind zwei radiale Öffnungen bzw. Durchbrüche ausgebildet, welche eine Einlassöffnung 14 und eine Auslassöffnung 16 konstituieren. Die Einlassöffnung 14 ist hierbei zweckmäßigerweise an einem dem ersten Gehäusebereich 2 zugewandten Abschnitt des Anschlussabschnitts 12 angeordnet, wohingegen die Auslassöffnung 16 an einem dem zweiten Gehäusebereich 4 zugewandten Abschnitt des Anschlussabschnitts 12 vorgesehen ist. Vorteilhafterweise liegen die Einlassöffnung 14 und die Auslassöffnung 16 auf einer zur Längsachse X parallelen Geraden. Zumindest eine der Öffnungen 14, 16 ist in dem Anschlussabschnitt 12 vorgesehen. In einer alternativen Ausführungsform kann die weitere Öffnung 14, 16 kopf- oder bodenseitig im Deckel, im Abschlusselement 52 oder im Boden vorgesehen sein. Um das Gehäuse an einen Kondensator (nicht dargestellt) anzuschließen bzw. anzuordnen, weist der Anschlussabschnitt 12 eine Anschlussfläche 18 auf. Wie insbesondere aus Fig. 3 ersichtlich, ist die Anschlussfläche 18 zweckmäßigerweise konkav ausgebildet mit einer runden, vorzugsweise kreisrunden, Oberflächenkonfiguration. Es versteht sich, dass ebenfalls alternative Oberflächenkonfigurationen zum Anschluss an den Kondensator möglich sind. Der Anschlussbereich 6 weist darüber hinaus einen nach innen ragenden Anlageabschnitt 20 auf, welcher sicht als umfänglich verlaufender radialer Vorsprung ausgebildet sein kann. Der Innenradius des Anlageabschnitts 20 ist hierbei zweckmäßigerweise kleiner als der Innenradius des Dichtungsabschnitts 10 des ersten Gehäusebereichs 2. In anderen Worten ist der Anschlussbereich 6 im Bereich des Anlageabschnitts 20 in Relation zur Innenkonfiguration des ersten Gehäusebereichs 2 nochmals verjüngt. An dem Anlageabschnitt 20 kann das Abschlusselement 52 sich abstützend zur Anlage gebracht werden (Fig. 4), sodass ein Fluidfluss zwischen Anlageabschnitt 20 und montiertem Abschlusselement 52 nicht möglich ist.As can be seen, the connection region 6 is arranged between the first housing region 2 and the second housing region 4. In the illustrated embodiment, the terminal portion 6 has a terminal portion 12 projecting radially outward. In other words, the connecting portion 12 is formed as a radially outwardly projecting projection, so that - unlike the first housing portion 2 and the second housing portion 4 - the terminal portion 6 is not rotationally symmetrical about the longitudinal axis X with respect to its outer configuration or cross-section. Nevertheless, the connection region 6 can be designed substantially rotationally symmetrically about the longitudinal axis X with regard to its inner cross-section or configuration. In the connection section 12, two radial openings or openings are formed, which constitute an inlet opening 14 and an outlet opening 16. The inlet opening 14 is expediently arranged on a section of the connection section 12 facing the first housing section 2, whereas the outlet opening 16 is provided on a section of the connection section 12 facing the second housing section 4. Advantageously, the inlet opening 14 and the outlet opening 16 lie on a straight line parallel to the longitudinal axis X. At least one of the openings 14, 16 is in the connection section 12 intended. In an alternative embodiment, the further opening 14, 16 may be provided on the top or bottom in the cover, in the end element 52 or in the bottom. In order to connect or arrange the housing to a capacitor (not shown), the connection section 12 has a connection surface 18. As in particular from Fig. 3 can be seen, the connection surface 18 is suitably concave with a round, preferably circular, surface configuration. It is understood that alternative surface configurations are also possible for connection to the capacitor. The connection region 6 furthermore has an inwardly projecting abutment section 20, which can be designed as a circumferentially extending radial projection. The inner radius of the contact portion 20 is expediently smaller than the inner radius of the sealing portion 10 of the first housing portion 2. In other words, the connection portion 6 in the region of the contact portion 20 in relation to the inner configuration of the first housing portion 2 is again tapered. At the abutment portion 20, the closing element 52 can be abuttingly brought into abutment ( Fig. 4 ), so that a fluid flow between the contact portion 20 and mounted end member 52 is not possible.

Erfindungsgemäß ist das Gehäuse als einteiliges Fließpressteil ausgebildet. Anders als im bekannten Stand der Technik, in welchem das Gehäuse zwar teilweise aus Fließpressteilen ausgebildet ist, diese Vielzahl von Teilen jedoch miteinander verschweißt wird, ist das Gehäuse der vorliegenden Erfindung einteilig bzw. einstückig aus einem homogenen Material und somit einem konstanten Materialverlauf ausgebildet, so dass Fügestellen nicht vorhanden sind, die zu Materialschwächungen führen können. In anderen Worten ist das erfindungsgemäße Gehäuse in einem Fließpressverfahren als einstückiger Körper hergestellt. Im Stand der Technik hingegen sind erster Gehäusebereich, zweiter Gehäusebereich und Anschlussbereich separate voneinander als Strang- oder Fließpressteile ausgebildet und miteinander verschweißt. Auch die Ausbildung des Anschlussabschnitts am Anschlussbereich als integraler Bestandteil des Fließpressteils ist im Stand der Technik nicht bekannt. Dieser wird hingegen bei den aus dem Stand der Technik bekannten Gehäusen separat gefertigt und daran angeschweißt oder verlötet.According to the invention, the housing is designed as a one-piece extruded part. Unlike in the known art, in which the housing is partly formed of extruded parts, but this plurality of parts is welded together, the housing of the present invention is integrally formed of a homogeneous material and thus a constant material course, so that joints are not present, which can lead to material weakening. In other words, the housing according to the invention is produced in an extrusion molding process as a one-piece body. In contrast, in the prior art, the first housing region, second housing region and connection region are formed separately from one another as extruded or extruded parts and welded together. The formation of the connection section at the connection region as an integral part of the extruded part is also unknown in the prior art. This is, however, made separately in the known from the prior art housings and welded or soldered thereto.

In Fig. 4 ist eine Querschnittsansicht einer bevorzugten, beispielhaften Ausführungsform des erfindungsgemäßen Trockners dargestellt. Der Trockner weist ein Trocknungsmittel 50 auf, welches im Wesentlichen im zweiten Gehäusebereich 4 angeordnet ist. Das Abschlusselement 52 wird über Gewinde mit dem Eingriffsabschnitt 8 des ersten Gehäusebereichs 2 in Eingriff gebracht und daran befestigt. Hieran schließt sich der Dichtungskörper 54, beispielsweise ein O-Ring, an, welcher am Dichtungsabschnitt 10 des ersten Gehäusebereichs 2 dichtend zur Anlage bringbar ist und das Gehäuse somit nach außen hin abdichtet. Ferner vorgesehen ist ein Filterbereich 56, dessen Ende sich im Wesentlichen fluiddicht an den Anlageabschnitt 20 anlegt. Hierdurch wird das durch die Einlassöffnung 14 eintretende Fluid gezwungen, den Filterbereich 56 zu durchströmen. Von dort gelangt es anschließend in den zweiten Gehäusebereich 4, in welchem das Trocknungsmittel 50 angeordnet ist, um dem Kühlmedium Feuchtigkeit zu entziehen. Daran anschließend wird das Kühlmedium über die Auslassöffnung 16 aus dem Gehäuse wieder herausgeleitet.In Fig. 4 Figure 3 is a cross-sectional view of a preferred exemplary embodiment of the dryer of the invention. The dryer has a drying means 50, which is arranged essentially in the second housing region 4. The end member 52 is threadedly engaged with and fixed to the engaging portion 8 of the first housing portion 2. This is followed by the sealing body 54, for example, an O-ring, which is sealingly engageable with the sealing portion 10 of the first housing portion 2 and thus seals the housing to the outside. Furthermore, a filter region 56 is provided, the end of which essentially rests against the contact section 20 in a fluid-tight manner. As a result, the fluid entering through the inlet opening 14 is forced to flow through the filter area 56. From there, it then passes into the second housing region 4, in which the drying agent 50 is arranged in order to extract moisture from the cooling medium. Subsequently, the cooling medium is led out of the housing again via the outlet opening 16.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

22
erster Gehäusebereichfirst housing area
44
zweiter Gehäusebereichsecond housing area
66
Anschlussbereichterminal area
88th
Eingriffsabschnittengaging portion
1010
Dichtungsabschnittsealing section
1212
Anschlussabschnittconnecting section
1414
Einlassöffnunginlet port
1616
Auslassöffnungoutlet
1818
Anschlussflächeterminal area
2020
Anlageabschnittcontact section
5050
Trocknungsmitteldesiccant
5252
Abschlusselementtermination element
5454
Dichtungskörperseal body
5656
Filterbereichfilter area
XX
Längsachselongitudinal axis

Claims (13)

  1. A dryer housing for a cooling medium in a cooling medium circuit, in particular an air conditioning system of a vehicle, comprising a first (2) and a second (4) housing portion, which are each formed of hollow cylindrical shape, and a connection region (6) which is arranged between the first housing portion (2) and the second (4) housing portion and is formed in a hollow cylinder shape, wherein the connection region (6) has at least one radial opening (14; 16), characterized in that
    the housing is formed as a one-piece extruded part,
    the connection region (6) has an inwardly projecting abutment portion (20), onto which a terminating element (52) is supportingly abutable, and
    wherein the connection region (6) has a radially outwardly projecting connecting portion (12), in which the at least one opening (14; 16) is provided.
  2. The housing according to one of the preceding claims, wherein the connecting region (6) comprises two radial openings (14, 16).
  3. The housing according to one of claims 1 or 2, wherein the connecting portion (6) has a connection surface (18) for arrangement onto a capacitor, which preferably is concave.
  4. The housing according to one of the preceding claims, wherein the wall thickness of the first housing portion (2) is greater than the wall thickness of the second housing portion (4).
  5. The housing according to one of the preceding claims, wherein the first (2) and second (4) housing portions have a round, preferably circular cross-sectional configuration.
  6. The housing according to claim 5, wherein the first (2) and second (4) housing portions have the same outer diameter.
  7. The housing according to one of the preceding claims, wherein the first housing portion (2) has an engagement portion (8), into which a terminating element (52) is engageable.
  8. The housing according to one of the preceding claims, wherein the first housing portion (2) has at least a sealing portion (10), on which a sealing body (54) of a terminating element (52) is bringable into abutment.
  9. The housing according to one of the preceding claims, which is formed of a light metal, such as aluminum or an aluminum alloy, or is formed of a temperature-resistant plastic material.
  10. The housing according to one of the preceding claims, which is formed of a light metal, such as aluminum or an aluminum alloy, or from a temperature-resistant plastic.
  11. The dryer according to claim 10, further comprising a terminal element(52), which comprises a filter region (56) in order to filter the cooling medium supplied to the dryer.
  12. The dryer according to any one of claims 12 or 13, wherein the connecting region (6) comprises two radial openings (14, 16) which are separated by the built-in termination element (52) that has a structure appropriately separating by way of the filter portion (56).
  13. A manufacturing process for a casing according to one of the claims 1 to 9 of a dryer for a cooling medium in a cooling medium circuit, in particular an air conditioning system of a vehicle comprising the steps of:
    providing a workpiece, and
    pressure forming by means of impact extrusion of the workpiece such that a one-piece unit of a first (2) and a second (4) housing portion, and an intermediate connecting region (6) with at least one radial-outwardly projecting connecting portion (12) and an inwardly projecting abutment element (20), onto which a terminal element (52) is supportingly abutable, is formed.
EP10187081.4A 2009-10-12 2010-10-11 Housing of a dryer and method of producing it Active EP2312240B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009045584.1A DE102009045584B4 (en) 2009-10-12 2009-10-12 Housing of a dryer

Publications (2)

Publication Number Publication Date
EP2312240A1 EP2312240A1 (en) 2011-04-20
EP2312240B1 true EP2312240B1 (en) 2016-04-27

Family

ID=43478063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10187081.4A Active EP2312240B1 (en) 2009-10-12 2010-10-11 Housing of a dryer and method of producing it

Country Status (4)

Country Link
EP (1) EP2312240B1 (en)
DE (1) DE102009045584B4 (en)
ES (1) ES2584913T3 (en)
PL (1) PL2312240T3 (en)

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US20040007012A1 (en) 2002-07-09 2004-01-15 Halla Climate Control Corporation Receiver-drier for air-conditioning system and method of manufacturing the same
DE10240305A1 (en) 2002-08-31 2004-03-11 Behr Gmbh & Co. Refrigerant condenser, in particular for motor vehicle air conditioning systems
KR20040090277A (en) 2003-04-17 2004-10-22 한라공조주식회사 Receiver drier and the fabrication method the same
DE102005023103A1 (en) 2005-05-13 2006-11-16 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer e.g. for cooling agent in cooling agent cycle such as air conditioning system of vehicle, has housing with filter arranged in it for filtering of cooling agent and housing formed of two overlapping parts
DE102005024158A1 (en) 2005-05-23 2006-11-30 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a coolant, in an automobile air conditioning system, has a housing containing a filter open at one end and sealed by a soldered closure at the other end and inflow/outflow openings through the housing wall
EP1744112A2 (en) 2005-07-13 2007-01-17 Jahn GmbH Dryer for a refrigerant in a refrigeration circuit, in particularly for an air conditioning system in a vehicule
EP1762798A1 (en) * 2005-09-09 2007-03-14 Ebea sas Production method of a tank which is to be integrated in a heat exchanger
US20080006052A1 (en) 2006-07-07 2008-01-10 Halla Climate Control Corp. Installing structure of lower part cap in receiverdrier
DE102008034631A1 (en) 2008-07-25 2009-04-02 Daimler Ag Dryer device for use in cooling device of motor vehicle, has connection parts provided for fixing dryer device to condenser of cooling device, where connection parts are designed as single piece with dryer device
DE102007051512A1 (en) 2007-10-29 2009-04-30 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for air conditioning system of vehicle, has insert for filtering and drying refrigerant arranged at inner side of housing between openings, where insert is provided with housing region with larger diameter than another housing region

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Publication number Priority date Publication date Assignee Title
JP2000320932A (en) * 1999-05-13 2000-11-24 Suzuki Motor Corp Liquid receiver
KR100371934B1 (en) * 2000-10-18 2003-02-11 신도엔지니어링(주) Method of manufacturing receiver dryer assembly tank of vehicle
DE102005024167B4 (en) * 2005-05-23 2008-05-15 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040007012A1 (en) 2002-07-09 2004-01-15 Halla Climate Control Corporation Receiver-drier for air-conditioning system and method of manufacturing the same
DE10240305A1 (en) 2002-08-31 2004-03-11 Behr Gmbh & Co. Refrigerant condenser, in particular for motor vehicle air conditioning systems
KR20040090277A (en) 2003-04-17 2004-10-22 한라공조주식회사 Receiver drier and the fabrication method the same
DE102005023103A1 (en) 2005-05-13 2006-11-16 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer e.g. for cooling agent in cooling agent cycle such as air conditioning system of vehicle, has housing with filter arranged in it for filtering of cooling agent and housing formed of two overlapping parts
DE102005024158A1 (en) 2005-05-23 2006-11-30 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a coolant, in an automobile air conditioning system, has a housing containing a filter open at one end and sealed by a soldered closure at the other end and inflow/outflow openings through the housing wall
EP1744112A2 (en) 2005-07-13 2007-01-17 Jahn GmbH Dryer for a refrigerant in a refrigeration circuit, in particularly for an air conditioning system in a vehicule
DE102005033168A1 (en) 2005-07-13 2007-01-25 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle
EP1762798A1 (en) * 2005-09-09 2007-03-14 Ebea sas Production method of a tank which is to be integrated in a heat exchanger
US20080006052A1 (en) 2006-07-07 2008-01-10 Halla Climate Control Corp. Installing structure of lower part cap in receiverdrier
DE102007051512A1 (en) 2007-10-29 2009-04-30 Jahn Gmbh Umform- Und Zerspanungstechnik Dryer for air conditioning system of vehicle, has insert for filtering and drying refrigerant arranged at inner side of housing between openings, where insert is provided with housing region with larger diameter than another housing region
DE102008034631A1 (en) 2008-07-25 2009-04-02 Daimler Ag Dryer device for use in cooling device of motor vehicle, has connection parts provided for fixing dryer device to condenser of cooling device, where connection parts are designed as single piece with dryer device

Also Published As

Publication number Publication date
PL2312240T3 (en) 2016-12-30
DE102009045584B4 (en) 2016-09-15
EP2312240A1 (en) 2011-04-20
DE102009045584A1 (en) 2011-04-21
ES2584913T3 (en) 2016-09-30

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