EP1744112A2 - Sécheur pour un réfrigérant dans un circuit de réfrigération, en particulier pour un système de climatisation d'un véhicule - Google Patents

Sécheur pour un réfrigérant dans un circuit de réfrigération, en particulier pour un système de climatisation d'un véhicule Download PDF

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Publication number
EP1744112A2
EP1744112A2 EP06014568A EP06014568A EP1744112A2 EP 1744112 A2 EP1744112 A2 EP 1744112A2 EP 06014568 A EP06014568 A EP 06014568A EP 06014568 A EP06014568 A EP 06014568A EP 1744112 A2 EP1744112 A2 EP 1744112A2
Authority
EP
European Patent Office
Prior art keywords
housing
dryer
filter
open end
connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP06014568A
Other languages
German (de)
English (en)
Other versions
EP1744112A3 (fr
Inventor
Andreas Jahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jahn GmbH
Original Assignee
Jahn GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jahn GmbH filed Critical Jahn GmbH
Publication of EP1744112A2 publication Critical patent/EP1744112A2/fr
Publication of EP1744112A3 publication Critical patent/EP1744112A3/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Definitions

  • the invention relates to a dryer for a cooling medium in a cooling medium circuit, in particular for an air conditioning system of a vehicle.
  • Such dryers serve to filter out impurities and to absorb water from the cooling medium.
  • a common application of these dryers is the cleaning of the cooling medium in air conditioning systems of a vehicle, wherein the moisture is absorbed in the system by means of a desiccant.
  • Dryers of the type mentioned are, for example, from the DE 699 00 883 T2 and the EP-A-0 696 714 known.
  • the dryers proposed therein include a housing which is provided at one end with a bottom and at the other end has a closed by a head opening, wherein the head includes inlet and outlet openings for the cooling medium.
  • a hollow cylindrical filter is arranged, which is penetrated by a pipe arranged on the closure part, which projects into the housing and through which the cooling medium located in the cooling circuit (also called refrigerant) flows.
  • the filter consists of a large number of individual parts made of different materials.
  • Other with a dryer formed from a hollow cylindrical and open on both sides of the housing are from the EP 0 838 642 A1 and the EP 0 915 307 A1 known, wherein the open ends are closed by means of bottom and cover elements.
  • the object of the present invention is therefore to provide a dryer which fulfills the requirements of the practice better than the known dryer, in particular in that it allows for easy production and maintenance, consists of fewer individual parts than the dryer known from the prior art and cheaper than this.
  • the object is achieved by a dryer for a cooling medium in a cooling medium circuit with the features of claim 1.
  • Advantageous embodiments of the invention are the subject of the dependent claims.
  • the dryer according to the invention comprises a one-piece housing, for example as Aluminiumlumf demopressteil, and a filter disposed therein, for example as a cartridge or desiccant bag.
  • a filter disposed therein, for example as a cartridge or desiccant bag.
  • the one-piece housing is designed as a one-sided open housing with an at least partially or completely closed bottom and an opposite open end into which the filter is inserted and fixed and held there in a predetermined position.
  • a connecting component can be placed on the housing, in particular on the open end.
  • a covering region is formed between the connecting component and the housing or the filter, in which at least one sealing element integrated on the housing or on the filter is provided.
  • the sealing element extends radially and / or axially on the outer surface of the housing in a thickened edge region.
  • an outer seal is effected.
  • the connecting component covers the open end of the housing circumferentially on the outside.
  • the sealing seat can be reinforced, for example by appropriate dimensions of the connecting member by the inner diameter of the connecting member is only slightly larger than the outer diameter of the open end of the housing. This leads to an increased biasing force on the circumferential sealing element, so that a good form and frictional engagement is given.
  • the filter itself may form the open end of the housing in a cartridge design.
  • the sealing element is integrated on the outer wall of the filter cartridge.
  • the upper filter wall is made correspondingly thick, so that the sealing element can be integrated.
  • connection component Under an integrated sealing element is understood in particular a inserted or molded into the outer wall of the open end seal, which thus causes a secure seal between the connecting member and the housing. This allows an internal seal and thus reliably arranged against contamination. Due to the design and material selection of the connection component this can be soldered directly to a capacitor. Alternatively, the capacitor can be connected indirectly.
  • a one-piece, in particular extruded housing is made possible due to the implemented sealing element.
  • the housing preferably has a one-piece shape, which allows binder-free, ie without soldering and gluing, a secure seal of the dryer through the "inner" positive connection of the housing and the filter used inside and the "outer” positive connection of housing and externally mounted connection component. Due to the given wall shape of the housing and the connecting member in the field of positive connection integrated sealing elements are used, which cause the secure seal. Compared with conventional dryers is ensured in the dryer according to the invention that the housing is securely sealed without welds and without gluing or soldering. Due to the few components of the dryer this allows a simple construction and easy installation.
  • the installation of the dryer is substantially simplified, since preferably a prefabricated filter insert in the manner of a filter cartridge, filter cartridge or a desiccant bag must be inserted into the housing.
  • the closing is done by placing the executed in the manner of a lid connecting member on the open end. The production of both the dryer and the filter cartridge is thus automated, so that errors in their assembly can be excluded.
  • the sealing element extends radially and / or axially along the outer surface of the housing. It can be provided in the thickened open end of the housing any kind of seal.
  • the sealing element is formed as at least one the housing or the filter radially circumferential groove into which one or more sealing elements, for. B. sealing rings are arranged.
  • a sealing ring for example, a so-called O-ring seal may be provided, for example, made of an elastic material, for. B. elastomeric material is.
  • the sealing element can be foamed or injected into the circumferential groove.
  • a plurality of peripheral sealing elements are arranged in the overlapping area between the outer wall of the open end of the dryer and the inner wall of the overlying edge of the connecting component.
  • the open end of the dryer is flared and thickened such that the wall of the open end has a greater thickness than the wall of the remaining housing. That the open end has a thicker wall, in particular in the covering area.
  • This allows the open end with an integrated sealing element, for. B. a sealing ring or a sealing seam, and / or an integrated connecting element, for. B. an external thread provided.
  • the inner wall of the connection component expediently has a corresponding thereto connecting element, for.
  • the connecting member and the open end of the housing in the covering area form a flange connection.
  • a flange be provided.
  • connecting element By means of the connecting element thus a detachable connection of connecting member and housing is possible, which can be designed in the manner of a screw cap, a flange connection and / or a clamping or latching connection.
  • the filter can be changed in case of service via the closable open end of the dryer.
  • the open end of the dryer in particular outside the covering area with at least one holding element, for. B. a peripheral outer shoulder, for fixing and holding, for example, for placement, be provided of the connecting member.
  • the patch on the open end of the connecting member can be positively, for. B. pressed or clamped, be connected to the housing of the dryer.
  • an external closure element can be placed on the outside of the connecting component.
  • a clamping ring, a clamping ring or a screw-nut connection can be provided on the outside for a detachable closure of the dryer.
  • the fixing element can be designed for mechanical fixing as a radially encircling inner paragraph.
  • the inner shoulder is formed, for example, by a constriction, bead or groove formed or inserted into the housing from the outside.
  • the filter is inserted into the housing so deeply that the filter rests on the inner shoulder.
  • a circumferential undercut is provided in the region of the opposite end of the filter in the inner wall of the housing, in which a slightly flared, open end of the filter used , z. B. latched or clamped is.
  • the housing may also be provided with a constriction in this area, so that the filter is held between two radially encircling constrictions whose spacing corresponds approximately to the length of the filter.
  • the one-piece housing is produced inexpensively by the extrusion process.
  • the housing is made of aluminum and has a one-piece shape, which is neither soldered nor glued;
  • the filter cartridge can be made of aluminum, metal or plastic.
  • For a simple assembly and a simple replacement of the filter housing is rod-shaped or tubular, for example, cylindrical or cup-shaped. This allows easy insertion and removal and thus easy replacement of the arranged in the rod-shaped housing filter. In particular, tilting is avoided.
  • a rod-shaped housing with threads, grooves, beads, grooves and / or paragraphs can be particularly easily and inexpensively in the extrusion molding process.
  • the dryer has two openings for supplying and removing the cooling medium.
  • the connecting component is provided with an inlet channel and an outlet channel.
  • the connecting component is for example made of a substantially cylindrical Extruded part formed with corresponding passageways.
  • the passage channels in the connection component run essentially in the longitudinal direction of the dryer and open into associated inlet and outlet openings of the housing.
  • the passage channels in the connecting component are angled in their course at a suitable location and guided laterally in the direction of the wall of the connecting component to the outside.
  • the through channels may be straight, oblique or in any other desired shape.
  • the inlet opening of the housing and thus of the dryer is formed as a radially encircling opening, into which the inlet channel of the connecting component opens.
  • the filter is inserted in the manner of a cartridge in the opening of the housing.
  • the filter has, as an outlet opening in the manner of an outlet channel, a centrally arranged suction or riser pipe, around which the inlet opening and the respective filter components are arranged in radial alignment.
  • the inlet opening as filter components follow in predeterminable order, for example a filter element, the desiccant and a further filter element.
  • the desiccant and filter elements are to be located between the inlet and outlet ports of the housing so that the refrigerant is filtered as it passes through the dryer and the desiccant can absorb water.
  • the filter is designed as a filter cartridge, e.g. B. as a filter cartridge or filter cartridge, trained and installed as a whole.
  • the actual filter is arranged, which consists of a granulated desiccant and fine filters, which are fixed by a perforated plate in the interior of the filter insert. All filter components, such as, for example, drying agents, Filter and sieves arranged according to their arrangement as a prefabricated filter assembly in the cartridge or cartridge accordingly.
  • the prefabricated filter assembly may be formed, for example, as a metal, in particular as an aluminum insert or as a plastic insert.
  • the filter may be implemented in a conventional manner by a layered construction and arrangement of individual filter elements in the housing of the dryer. In this embodiment, all filter elements, such. B. sieves, filters, desiccant, introduced into the housing as an inner filling; then the housing is closed.
  • the input and output of the dryer are due to the operation of the condenser, depending on the installation position of the dryer at the bottom or top of the dryer attached. That
  • the connection component can be placed on the lower or the upper end of the dryer.
  • the dryer is preferably soldered via the connecting member with the capacitor.
  • FIG. 1 shows a housing 1 for a dryer V for a cooling medium circuit.
  • the dryer V is, for example, a so-called dryer for a cooling medium in a cooling medium circuit of an air conditioning system in a vehicle.
  • the housing 1 is designed as a one-sided open housing with a closed bottom 1.1 and an opposite open end 1.2. In the region of the open end 1.2, the housing 1 has a conically widened shape by a thickening housing wall 1.3. As a result, in the outside housing 1.3 as a connecting element 1.3.1 a circumferential external thread can be introduced.
  • the open end 1.2 of the dryer V can be closed with a connecting component 2.
  • the connecting element 1.3.1 serves to connect the open end 1.2 housing 1 with the connecting member 2.
  • the connecting member 2 covers the open end 1.2 on the outside circumferentially, so that a coverage area B is given.
  • the connecting component 2 has on the inside a connecting element 2.1 corresponding to the connecting element 1.3.1 of the housing 1.
  • the corresponding connecting element 2.1 of the connecting member 2 is designed as an internal thread.
  • an integrated sealing element 3 is provided in the covering area B.
  • the integrated sealing element 3 is formed, for example, as a housing 1 circumferential groove into which a sealing ring is inserted, molded, used or foamed. In addition or as an alternative to such a radially arranged sealing element 3, this can also be mounted axially extending on the outer surface of the housing 1 or the inner surface of the connecting component 2.
  • a snap ring or Kleznmring or a nut-screw connection can be provided on the outside of the connecting member 2 on the outside.
  • a sufficiently good form and frictional engagement can be given by means of a corresponding design of the sealing seat caused by the integrated sealing element 3.
  • the connecting component 2 has only a slightly larger inner diameter than the outer diameter of the open end 1.2 of the dryer V.
  • the housing 1 may have a holding element 1.4.
  • the holding element 1.4 is designed, for example, as a circumferential shoulder, in particular a bulge or a wall edge. On this outside shoulder the connecting member 2 is placed. Also, the holding element 1.4 may be performed in a manner not shown as a flange or a constriction or a Aufsetzring.
  • a filter 4 is arranged in the housing 1.
  • the dryer V is filled from below with the filter 4.
  • the filter 4 is a Filter screen or a filter bag with radial and / or axial Ab harshung.
  • the filter 4 is formed, for example, from a bag 4.1, in particular a desiccant or anti-condensation bag with a desiccant 4.1.1, and a filter screen 4.2.
  • the filter 4 (also called filter dryer) is made of individual components which are arranged in the housing 1 according to their sequence.
  • the filter 4 may be inserted into the dryer V as a filter cartridge or filter cartridge.
  • the filter 4 itself can form the open end 1.2 of the dryer V.
  • the housing 1 For fixing and positioning of the filter 4 in the dryer V, the housing 1, at least one fixing element 1.5, z. B. a circumferential inner shoulder on.
  • the inner shoulder is formed for example by an inserted or molded into the housing wall constriction, groove or bead.
  • the fixing element 1.5 serves to mechanically fix the filter 4 in the dryer V, i. in the one-piece housing 1.
  • two radially extending and axially spaced-apart fixing 1.5 can be introduced into the housing.
  • the axial distance of the two fixing elements 1.5 corresponds approximately to the length of the filter 4.
  • the filter 4 has such an outer dimension that a positive connection between the filter 4 and the one-piece housing 1 is given.
  • the dryer V is sealed on the inside via the positive connection of housing 1 and filter 4 and sealed on the outside via the positive connection of housing 1 and connector component 2.
  • the dryer V is connected by such a multiple mechanical sealing of the housing 1 with a one-piece outer shape without material connection, ie without soldering, without gluing, without welding, without gluing, only via positive connection with the connecting member 2.
  • a holding element 5 can be arranged on the bottom 1.1 of the housing 1.
  • the holding element 5 may be formed, for example, as a pin or other similar shape.
  • the holding element 5 is preferably pressed against the housing 1.
  • the filter elements of the filter 4 can be replaced in the case of service.
  • the housing 1 is made of a F bonnepressteil.
  • the housing 1 is made of metal, in particular aluminum or steel.
  • the housing 1 may also be made of a temperature-resistant plastic. In this case, the heels, grooves, beads, grooves, shoulders, threads and / or bulges can be introduced in the manufacture of the housing 1 itself. Thus, a cost-effective and material-saving housing is possible.
  • the passage channels 2.2 and 2.3 are arranged laterally in the outer wall of the connecting member 2 and have an angled course within the connecting member 2, so that the passageways 2.2 and 2.3 below in the longitudinal direction of the dryer V run and open into the open end 1.2 of the dryer V.
  • the course of the passage channels 2.2 and 2.3 may vary depending on the type and shape of the connection to the condenser or to the dryer V.
  • the desiccant 4.2 serves to dry the cooling medium and absorbs water.
  • the filter 4 is arranged directly at the open end 1.2 of the dryer V.
  • the cooling medium flowing in via the inlet channel 2.2 and an adjoining inlet space 1.6 first passes through the filter screen 4.2 arranged on the flow inlet side.
  • the input space 1.6 is limited by the outer wall of the open end 1.2 and the outer wall of a filter 4 in the middle arranged riser 4.3 (also called suction). From the outlet channel 4.3 radially encircling input space 1.6, the cooling medium flows through the filter bag 4.1 with the desiccant 4.1.1.
  • the filter outlet 4.2 provided on the outlet side in a subsequent cavity 1.7 of the housing 1.
  • the cooling medium is dried and filtered.
  • the dried and filtered cooling medium via the riser channel 4.3 and the outlet channel 2.2 is fed to the capacitor, not shown.
  • the filter 4 can be designed as a prefabricated filter bag 4.1 or as a prefabricated filter cartridge or cartridge.
  • FIG. 2 shows in detail the housing 1 with the filter used in the housing 1 4.
  • the filter insert is installed as a prefabricated module as a whole in the housing 1 of the dryer V.
  • the illustrated embodiment shows a cartridge formed in the form of a cartridge or cartridge.
  • the filter cartridge extends substantially longitudinally the length of the housing 1.
  • the housing 1 is cup-shaped, i. it has a hollow cylindrical shape, which is closed on one side by a shaped bottom 1.1.
  • the elements of the filter 4 for example, provided with fine filter openings and arranged between the fine filters volume of a granular desiccant are provided.
  • the elements are separated according to each other and allow upward and downward flow of the cooling medium.
  • the filter F i. the filter insert
  • the open end 1.2 with the connecting member 2, z. B. in the manner of a lid closed. This can be done for example by screws, clamps, detents or similar methods.
  • the housing 1 in the region of the open end 1.2, the integrated sealing element 3 in the form of two circumferential sealing rings.
  • FIG. 3 shows an alternative embodiment for a dryer V with a connecting component 2 closing the open end 1.2 of the dryer V.
  • the connecting component 2 covers the open end 1.2 of the housing 1 on the inside. That the connecting member 2 is inserted into the open end 1.2, so that the outer surface of the connecting member 2 rests against the inner wall of the open end 1.2.
  • a plurality of sealing elements 3 between the housing 1 and the connecting member 2 are provided.
  • a sealing element 3.1 is arranged as a radially encircling sealing ring between the inner wall of the open end 1.2 of the housing 1 and the outer wall of the connecting member 2.
  • Another, radially encircling sealing element 3.2 is integrated on the inner wall of the riser channel 4.3. This sealing element 3.2 serves to seal the riser 4.3 and outlet 2.3 of the connecting member. 2
  • FIGS. 4A and 4B show the housing 1 without a filter 4 in longitudinal section and in a plan view from below with the retaining element 5.
  • Figures 5A to 5C show the connecting member 2 in detail in plan view from above the dryer V, in longitudinal section and in plan view from below.
  • the outlet channel 2.3 is shown for connection to a capacitor, not shown in plan view.
  • the outlet channel 2.3 on the connection side has a mouth shape corresponding to the shape of the media line to be connected.
  • an example tubular media line of the outlet channel 2.3 is provided with a concave mouth shape. This allows a good fit of the outlet channel 2.3 with the media line of the capacitor.
  • Figure 5B shows the Verbin Carlgsbauteil 2 in longitudinal section, which can be produced as a F bonnepressteil in one-piece mold.
  • the connection component 2 is made of metal, in particular aluminum or steel.
  • the connection component 2 can also be made of a temperature-resistant plastic.
  • the passage channels 2.2, 2.3, paragraphs, threads and / or bulges can be introduced in the manufacture of the connecting member 2 itself.
  • a cost-effective and material-saving connection component 2 as a closure part of the dryer V is possible.
  • the inlet channel 2.2 and the outlet channel 2.3 can thereby pass straight through the connecting component 2, obliquely and / or at an angle.
  • FIG. 5C shows the inlet channel 2.2, in particular its mouth shape that can be connected to a media line.
  • the mouth shape of the inlet channel 2.2 corresponds to the outer shape of the media line to be connected.
  • the inlet channel 2.2 is concave on the connection side.
  • a not-shown spacer element for. B. a short piece of pipe, be arranged between them.
  • this Embodiment corresponds to the respective mouth shape of the inlet channel 2.2 and the outlet channel 2.3 with the shape of a spacer element to be connected.

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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)
  • Drying Of Gases (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP06014568A 2005-07-13 2006-07-13 Sécheur pour un réfrigérant dans un circuit de réfrigération, en particulier pour un système de climatisation d'un véhicule Ceased EP1744112A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510033168 DE102005033168B4 (de) 2005-07-13 2005-07-13 Trockner für ein Kühlmedium in einem Kühlmediumkreislauf, insbesondere für eine Klimaanlage eines Fahrzeugs

Publications (2)

Publication Number Publication Date
EP1744112A2 true EP1744112A2 (fr) 2007-01-17
EP1744112A3 EP1744112A3 (fr) 2007-09-19

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EP06014568A Ceased EP1744112A3 (fr) 2005-07-13 2006-07-13 Sécheur pour un réfrigérant dans un circuit de réfrigération, en particulier pour un système de climatisation d'un véhicule

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EP (1) EP1744112A3 (fr)
DE (1) DE102005033168B4 (fr)

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EP2312240B1 (fr) 2009-10-12 2016-04-27 Rupert Fertinger GmbH Boîtier d'un séchoir et procédé de fabrication du boîtier

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