EP1537369A1 - Condenseur d'agent refrigerant, notamment pour installations de conditionnement d'air d'automobile - Google Patents

Condenseur d'agent refrigerant, notamment pour installations de conditionnement d'air d'automobile

Info

Publication number
EP1537369A1
EP1537369A1 EP03794894A EP03794894A EP1537369A1 EP 1537369 A1 EP1537369 A1 EP 1537369A1 EP 03794894 A EP03794894 A EP 03794894A EP 03794894 A EP03794894 A EP 03794894A EP 1537369 A1 EP1537369 A1 EP 1537369A1
Authority
EP
European Patent Office
Prior art keywords
tube
pipe
condenser according
passages
collecting
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.)
Withdrawn
Application number
EP03794894A
Other languages
German (de)
English (en)
Inventor
Uwe FÖRSTER
Kurt Molt
Gerrit WÖLK
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1537369A1 publication Critical patent/EP1537369A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • 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

  • Refrigerant condenser in particular for automotive air conditioning systems
  • the invention relates to a refrigerant condenser, in particular for motor vehicle air conditioning systems, consisting of a tube / fin block and on at least one side or also on both sides of the collecting pipes, and from a collector arranged parallel to a collecting pipe, which is in refrigerant connection via overflow openings with the collecting pipe , in particular according to the older patent application of the applicant DE 101 54 891.
  • the condenser disclosed in the earlier patent application DE 101 54 891 has a collector which is composed of two parts, namely a pipe section and an extruded tubular profile.
  • the overflow openings, which connect the collector to the collector tube, are arranged in the profile piece and are designed as bores into which passages engage, which are formed from a cover part of a two-part collector tube.
  • the collecting tube and collector are fixed to each other by joining the passages in the holes of the profile piece. An additional fixation of both parts is done by a common cover, which holds the ends of the collecting tube and collector in the position that the condenser is to maintain during the soldering process.
  • the construction of the collector from a welded tube and a profile piece means an increased production engineering and cost expenditure, because the profile piece causes relatively high costs in terms of material expenditure, production and machining. It is an object of the present invention to improve a condenser of the type mentioned at the outset in such a way that the production and cost outlay and the weight are reduced, in particular for the collector and its connection to the collecting pipe.
  • the solution to this problem results from the features of claim 1; it consists in the collector being designed as a one-piece tube.
  • the first major advantage is that the manufacturing costs are significantly lower because the entire collector can be made from a prefabricated part, for example a semi-finished part, thus reducing material and processing costs.
  • the tube can be designed as a welded, extruded or folded tube or produced by backward extrusion.
  • passages are arranged in the area of the overflow openings on the collecting pipe and / or on the pipe of the collector, which are formed from the pipe material and are preferably directed outwards (towards the pipe outside).
  • the production of such passages is comparatively low in cost, since it is carried out by non-cutting deformation.
  • the passages can have different diameters and interlock in a telescopic or box-like manner, that is, either the passages of the collector pipe engage in the passages of the collector pipe, or the passages of the pipe are arranged within the passages of the collector pipe - overlap in both cases the passages and form a common annular contact surface, where they solder together and thus form a dense overflow channel between the collector and manifold.
  • the manifold and tube of the collector are fixed in place by inserting the passages into each other - fixing both parts is necessary for the later soldering process. Since both parts are fixed to each other solely by joining the pull-throughs, fixing by tacking (tack welding) can be dispensed with.
  • the passages can also have the same or similar cross-section, that is to say the end faces of passages on the collecting tube side and on the tube side form a butt joint, ie they do not overlap.
  • the missing contact area for the soldering of the pull-throughs is formed by a tube sleeve which encases the butt joint of the pull-throughs. This ensures tight soldering of the butt joint.
  • tabs are arranged in the area of the overflow openings on the collecting pipe and / or on the pipe of the collector, which are formed from the pipe material and are preferably directed outwards (towards the pipe outside).
  • the tabs can for example engage in bores of an intermediate piece, which in turn have different cross sections and can be aligned or at any angle to one another.
  • an intermediate piece with bores in the region of the overflow openings can be arranged between the collecting tube and the tube, these bores encasing the passages and thus likewise providing the necessary contact surface for soldering, so that this also results in tight overflow channels between the collecting tube and pipe result.
  • Joining both parts, i. H. inserting the passages into the bores of the intermediate piece is sufficient to fix the header pipe and pipe.
  • the bores can be continuous or designed as stepped bores to accommodate the passages or tabs.
  • the above-mentioned passages can be substituted by a piece of pipe, this piece of pipe being inserted into an opening in the collecting pipe and in the pipe.
  • the openings in the pipe and header pipe are punched out.
  • NEN can be produced at low cost.
  • the pipe section used advantageously has a circumferential, centrally arranged bead which serves as a stop when the pipe section is inserted into the insertion openings in the collecting pipe and pipe. At the same time, the spacing between the collecting pipe and the pipe is created by this bead.
  • the collecting pipe and pipe are adequately fixed to one another by the joining of this piece of pipe.
  • overflow channels between the tube and the collecting tube are formed by a connecting piece which has bores in the region of the overflow openings and lies directly against the outer walls of the collecting tube and tube. In this case, only openings are punched out in the tube and in the collecting tube, which are aligned with the bores of the connecting piece.
  • both the tube and the collecting tube in the area of the overflow openings have outwardly directed features or formations which form an end-face, for example annular contact surface, via which the collecting tube and the tube are soldered to one another, so that overflow channels are formed by direct integral connections between the header pipe and the pipe.
  • Fig. 1 shows a section of a condenser with manifold
  • FIG. 2 collector with passages
  • FIG. 2 a condenser with a collecting tube and collector with an integrated dryer / filter
  • FIG. 3 shows a second exemplary embodiment with passages and intermediate piece
  • FIG. 4 shows a third exemplary embodiment with passages and tubular sleeve
  • FIG. 5 shows a fourth exemplary embodiment with inserted raw pieces
  • FIG. 6 shows a common cover for collecting pipe and collector
  • Fig. 7 shows a fifth embodiment with connector
  • Fig. 8 shows a sixth embodiment with shapes on the manifold and collector.
  • Fig. 1 shows a section of a capacitor 1, which one
  • Has tube / fin block 2 which consists of flat tubes 3 and corrugated fins 4 arranged between them.
  • the ends of the flat tubes 3 open into header tubes, of which only the right header tube 5 is shown here, which is formed in two parts and consists of a bottom part 5a receiving the tube ends and a cover part 5b.
  • a collector 6 is arranged parallel to the collector tube 5, a gap 7 being left between the collector tube 5 and the collector 6.
  • the collector tube 5 and collector 6 are each broken open in their lower region and reveal two overflow openings 8, 9, through which the collector tube 5 is in fluid communication with the collector 6.
  • a partition 10 is arranged in the manifold 5 between the two overflow openings 8, 9.
  • a dryer / filter unit 11 is inserted, which is fastened by means of a holding means, such as a circumferential retaining rib 12 in a groove 13 of the collector 6.
  • the collector 6 is closed at the bottom by a cover 14; in a manner not shown, the collector 6 is closed at the top by a further removable or non-removable cover.
  • the collector 6 is produced according to the invention as a one-piece tube, here as a welded tube 15, ie from the lower cover 14 to the upper cover, not shown.
  • passages 16, 17 are formed outwards from the tube.
  • outwardly directed passages 18, 19 are formed which engage in the passages 16, 17 of the tube 15, that is to say are telescopically inserted therein that the pulling pairs 16/18 and 17/19 each form an adhesive seat with one another.
  • Collector 6 and manifold 5 are sufficiently fixed against each other by this adhesive seat and can be in this position. sition to be soldered.
  • the soldering in the area of the overflow openings 8, 9 takes place via contact areas which are formed by the pairs of passages 16/18 and 17/19. As a result, fluid-tight overflow channels 8, 9 are created without the need for additional parts.
  • Fig. 2 shows a modified embodiment with the same design of the overflow openings 8, 9 - as shown in Fig. 1 - d. H. with interlocking passages.
  • the dryer 20 dryer granules not shown
  • the collector 21 which consists of a welded tube 22.
  • This integration essentially takes place in that the dryer is arranged between an upper bead or bead elements 23 and a lower peripheral bead 24.
  • the dryer 20 is limited at the bottom by a perforated plate 25.
  • an annular sieve 26 is arranged and fixed in a groove 27.
  • the welded tube 22 thus also offers the possibility that circumferential beads 24, bead segments or depressions 23 or annular grooves 27 can be introduced into the tube 22 by means of non-cutting shaping, without any special manufacturing outlay.
  • Fig. 3 shows a second exemplary embodiment of the design of the overflow openings 8, 9 between a collector pipe 28 and a collector 29, which in turn is designed as a one-piece welded or folded pipe 30.
  • Passages 31, 32 in the area of the overflow openings 8, 9 are formed out of the tube 30.
  • passages 33, 34 are also formed on the outside of the collecting tube 28 (from its cover part), so that the passages 31, 32 of the tube 30 with the passages 33, 34 of the collecting tube 28 each form a butt joint 35, 36.
  • an intermediate piece 37 is arranged in the area of the overflow openings 8, 9, which has holes 38, 39 in the area of the overflow openings 8, 9, in which the passages 31, 32 and 33, 34 engage from both sides. This is between the bores 38, 39 and the outer circumference of the passages 31, 32; 33, 34 each have a contact surface via which soldering takes place, so that fluid-tight overflow channels 8, 9 are again created between the collecting pipe 28 and the collector 29.
  • Fig. 4 shows a third embodiment, similar to that shown in Fig. 3, i.e. H. with passages 31, 32, 33, 34, each forming a butt joint 35, 36.
  • the butt joints 31/33 and 32/34 are butted on their outer surfaces by tubular sleeves 40, 41, so that the butt joint 35, 36 is covered by the tubular sleeves 40, 41. This results in contact surfaces on the outside of the passages and the inside of the tube sleeves, via which soldering can take place and thus tight overflow channels are created between the collecting tube 28 and the collector 29.
  • the passages of the collector and the collecting tube meet with one another bluntly, with tube sleeves being introduced within the passages, which are each connected to the inner surfaces of the passages as if soldered.
  • FIG. 5 shows a fourth exemplary embodiment for the formation of the overflow openings 8, 9 by means of inserted pipe pieces 42, 43, which form overflow channels between the collecting pipe 28 and the collector 29.
  • the latter have insertion openings 44, 45 and 46, 47, which are produced, for example, by punching.
  • the tube pieces 42, 43 each have a circumferential, outwardly directed bead 42a, 43a arranged in their center, which serves as a stop and as a spacer when the tube pieces 42, 43 are inserted into the insertion openings 44 to 47.
  • the annular gap between the pipe sections 42, 43 and the insertion openings 44 to 47 is tightly soldered when the entire capacitor is soldered.
  • FIG. 6 shows an upper section of the condenser 1 with a collecting tube 5 and collector 6, which - as mentioned - is designed as a one-piece tube 15.
  • the collecting tube 5 and collector 6 are closed at their upper end faces by a common cover 48.
  • This common cover 48 also serves as a fixing aid in order to position the collecting tube 5 and collector 6 relative to one another in addition to the fixing means already mentioned above.
  • the cover 48 has a cap-shaped part 48a which overlaps the end face of the collector tube 5 and a cover insert 48b which is inserted in a form-fitting manner in the end face of the collector 6. Both parts 48a, 48b are connected to one another by a web 48c. This results in two fixing means for fixing the collecting pipe 5 and the collector 6, namely in the area of the overflow openings 8, 9 and in the upper part of the collector 6 through the common cover 48.
  • FIG. 7 shows a fifth exemplary embodiment for the formation of the overflow openings 8, 9 by means of a connecting piece 49 which is arranged between the collecting pipe 28 and the collector 29 and has through-bores 50, 51 in the region of the overflow openings 8, 9.
  • the connecting piece 49 can be produced as an extruded profile with a cross section that adapts to the outer contours of the collecting pipe 28 and collector 29, so that there is sufficient contact area for soldering.
  • the collector 29 and the collecting pipe 28 have punched out openings 52, 53 and 54, 55 in the area of the overflow openings 8, 9, which are aligned with the through bores 50, 51.
  • the overflow openings 8, 9 are formed by outward-directed features or shapes 58, 59 and 60, 61, which are approximately are designed like a truncated cone and are flattened on their outer end face to form an annular surface 62, 63 which serves as a contact surface for soldering.
  • the Formations 58 to 61 can be produced without any manufacturing effort without cutting, ie by punching and embossing.
  • All of the above-mentioned exemplary embodiments are produced in such a way that the collecting tube and collector are first joined and thus fixed to one another - the entire condenser is then placed in a soldering furnace and soldered “in one shot” Collector tube and collector created.
  • FIG. 9 shows a second exemplary embodiment for the design of the overflow openings 108, 109 between a collecting pipe 128 and a collector 129, which in turn is designed as a one-piece welded or folded pipe 115.
  • Tabs 110, 111 are formed out of the tube 115 in the area of the overflow openings 108, 109.
  • Passages 133, 134 are also formed outward from the collecting tube 128, so that the tabs 110, 111 of the tube 115 form a butt joint 135, 136 with the passages 133, 134 of the collecting tube 128.
  • An intermediate piece 137 is arranged between the collecting pipe 128 and the collector 129 in the area of the overflow openings 108, 109 and has bores into which the passages 133, 134 and the tabs 110, 111 engage from both sides. This creates a contact surface between the bores in the intermediate piece 137 and the outer circumference of the passages 133, 134 or tabs 110, 111, via which soldering takes place, so that in turn fluid-tight overflow channels 108, 109 between the manifold 128 and the Collector 129 can be created.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un condensateur d'agent réfrigérant (1) comprenant un bloc tuyau à ailettes (2) et des tubes collecteurs (5) disposés des deux côtés, ainsi qu'un collecteur (6) qui est disposé parallèlement à un tube collecteur (5) et est en communication d'agent réfrigérant avec le tube collecteur (5), par l'intermédiaire d'ouvertures de trop-plein (8, 9). Ledit collecteur (6) se présente sous forme de tube monobloc.
EP03794894A 2002-08-31 2003-08-19 Condenseur d'agent refrigerant, notamment pour installations de conditionnement d'air d'automobile Withdrawn EP1537369A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10240302 2002-08-31
DE10240302 2002-08-31
PCT/EP2003/009163 WO2004025196A1 (fr) 2002-08-31 2003-08-19 Condenseur d'agent refrigerant, notamment pour installations de conditionnement d'air d'automobile

Publications (1)

Publication Number Publication Date
EP1537369A1 true EP1537369A1 (fr) 2005-06-08

Family

ID=31502230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03794894A Withdrawn EP1537369A1 (fr) 2002-08-31 2003-08-19 Condenseur d'agent refrigerant, notamment pour installations de conditionnement d'air d'automobile

Country Status (8)

Country Link
US (1) US7334429B2 (fr)
EP (1) EP1537369A1 (fr)
JP (1) JP2005537457A (fr)
CN (1) CN1678874A (fr)
AU (1) AU2003260431A1 (fr)
BR (1) BR0306209A (fr)
DE (1) DE10338527A1 (fr)
WO (1) WO2004025196A1 (fr)

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Also Published As

Publication number Publication date
BR0306209A (pt) 2004-08-24
WO2004025196A1 (fr) 2004-03-25
US7334429B2 (en) 2008-02-26
AU2003260431A1 (en) 2004-04-30
US20060162375A1 (en) 2006-07-27
CN1678874A (zh) 2005-10-05
DE10338527A1 (de) 2004-03-11
JP2005537457A (ja) 2005-12-08

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