WO2007042186A1 - Corps chauffant, circuit de refrigerant, appareil de climatisation pour une installation de climatisation de vehicule automobile, et installation de climatisation pour un vehicule automobile - Google Patents

Corps chauffant, circuit de refrigerant, appareil de climatisation pour une installation de climatisation de vehicule automobile, et installation de climatisation pour un vehicule automobile Download PDF

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Publication number
WO2007042186A1
WO2007042186A1 PCT/EP2006/009592 EP2006009592W WO2007042186A1 WO 2007042186 A1 WO2007042186 A1 WO 2007042186A1 EP 2006009592 W EP2006009592 W EP 2006009592W WO 2007042186 A1 WO2007042186 A1 WO 2007042186A1
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WO
WIPO (PCT)
Prior art keywords
flat tube
radiator
wall
flat
air
Prior art date
Application number
PCT/EP2006/009592
Other languages
German (de)
English (en)
Inventor
Hans-Peter Heuss
Matthias Traub
Original Assignee
Behr Gmbh & 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 & Co. Kg filed Critical Behr Gmbh & Co. Kg
Priority to EP06806030.0A priority Critical patent/EP1934545B1/fr
Publication of WO2007042186A1 publication Critical patent/WO2007042186A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0096—Radiators for space heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Definitions

  • the invention relates to a radiator for a cooling circuit of an air or water side controlled air conditioning of a motor vehicle, air conditioner for a motor vehicle air conditioning, a cooling circuit for an air or water side regulated automotive air conditioning and air conditioning for a motor vehicle.
  • An air conditioning system for motor vehicles usually consists of the subsystems heating circuit and refrigeration circuit, as well as the air conditioner, an air duct to the air conditioner and the outlet openings and from the control unit for the air conditioning (including the associated control and the associated sensors).
  • the air conditioner has a radiator.
  • the radiator is integrated in a cooling circuit.
  • the coolant of this cooling circuit is for example also led to the engine of the motor vehicle.
  • Soldered radiators are used in the passenger car and commercial vehicle sector for different engines and different cooling circuits in air- and water-side controlled air conditioning systems.
  • different cooling circuits i. particularly in different vehicles, occurring stresses, in particular stresses on radiators,
  • BESTATIGUNGSKOPIE are sometimes significantly different in terms of temperatures, pressures, coolant, volume flow, etc. This has the consequence that the flat tubes (different radiators in terms of wall thickness can be or have different dimensions Wall thickness of the flat tubes often be greater than in applications in passenger cars.But also in the field of passenger cars as well as in the field of commercial vehicles are - taken by itself - different requirements for the dimensioning of the wall thickness of the flat tubes for different vehicle types.
  • Known radiators usually have at least one coolant box, which forms a bottom.
  • one or more partitions can be provided, which divide the interior of this box into sub-chambers and serve for deflecting the coolant flowing through the radiator.
  • the partitions may be arranged to effect a deflection in depth or to cause a deflection in the width.
  • the one partition or the partitions are inserted into the boxes.
  • the flat tubes are inserted into the bottom of the box or molded onto it.
  • the manufacture of the flat tubes themselves is carried out in the known radiators so that a correspondingly cut sheet of constant thickness by means of a special device having roller sets, is formed into a flat tube.
  • the flat tube is then welded or soldered to the abutting edge. It can also be provided that soldered disks are used.
  • FIGS. 1a to 1f show such a flat tube in different partial views.
  • Fig. 1 a shows the flat tube 50 from above.
  • the reference numeral 52 schematically indicates the longitudinal axis or longitudinal direction of this flat tube 50.
  • FIGS. 1 b and 1 d show sections along the line I cl c or I dl d from FIG. 1 that is the same place. The differences between the designs shown in FIGS. 1c and 1d will be discussed below.
  • FIG. 1e shows an enlarged view of the region 54 from FIG. 1c
  • FIG. 1f shows this region 54 from FIG. 1d in an enlarged view.
  • the flat tube 50 has a flat tube wall 56, which is provided by means of which the channels 58, 60 formed in the flat tube 50.
  • the flat tube wall 56 forms beads 62, 64, which are formed on opposite areas of the flat tube wall 56 at its seen in cross section wide sides on the flat tube outside.
  • the regions of the flat tube wall 56, which form the beads 62 and 64, contact each other on their mutually facing sides and, as provided by the blackened points 66, 68, which are provided in FIG. 1d for the indication of the solder joints provided there, soldered together so that opposite each other sealed channels 58, 60 are formed in the flat tube.
  • Fig. 1d shows the flat tube 50 after soldering at said locations
  • the flat tube 50 is shown in Fig. 1c prior to soldering.
  • the flat tube 50 is - as mentioned - formed from a sheet of constant thickness, which is soldered or welded to free, each extending in the direction of the longitudinal axis of the flat tube ends to form the circumferentially closed flat tube wall, which in Figs. 1 a to 1 f not is highlighted separately.
  • Figs. 5a to 5f show views of a known flat tube, which substantially correspond to the views 1a to 1f.
  • the beads 62, 64 have a different shape in the design according to FIGS. 5 a to 5 f.
  • These beads 62, 64 are in the configuration according to FIGS. 5a to 5f in cross section in each case substantially V-shaped, wherein the tip of the "V” and the opposite ends of the tip of the "V" are rounded or curved.
  • the invention is based on the object to provide a reliable radiator, which is well adapted and adaptable to be used in a cooling circuit of an air or water side controlled air conditioning.
  • a radiator according to claim 1 or according to claim 2 is proposed.
  • An inventive air conditioner with such a radiator is the subject of claim 15.
  • An inventive cooling circuit for an air or water side controlled air conditioning with a radiator is the subject of claim 16.
  • An automotive air conditioning according to the invention is the subject of claim 17.
  • Preferred embodiments are the subject of the dependent claims.
  • a radiator for a cooling circuit of an air or water side controlled air conditioning of a motor vehicle has a multiplicity of flat tubes through which a coolant can flow.
  • These flat tubes each have a flat tube wall for delimiting at least one channel extending in the flat tube interior.
  • the Wise) flat tube wall of one, several or all of these flat tubes has different wall thicknesses.
  • a radiator according to claim 2 is also proposed in particular. It is provided in particular that one, several o- all flat tubes of the radiator extruded flat tubes.
  • a flat tube or several or all flat tubes of the radiator are extruded flat tubes, wherein the respective flat tube walls of this or these flat tubes have different wall thicknesses. It can be provided that the different loaned wall thicknesses have been formed in the context of extrusion.
  • the radiator has a variety of flat tubes. It can be provided that all flat tubes of the radiator are designed identically. But it can also be provided that the radiator has differently shaped flat tubes. To simplify the following illustrations, it should be noted in advance that embodiments which relate in particular to the design of one or the flat tubes of the radiator according to the invention are shown below with particular reference to "a" flat tube.
  • the radiator according to the invention or its developments may of course also each have a plurality of flat tubes of the type described in each case or it may be provided that all flat tubes are formed in the manner described in each case.
  • the flat tube wall of the flat tube has different wall thicknesses in its transverse cross-section or perpendicular to the flat tube longitudinal axis. It can be provided that essentially all the cross sections of the flat tube seen in the mentioned longitudinal direction are designed identically. Alternatively, however, it can also be provided that different cross sections exist in the longitudinal direction mentioned. For example, it can also be provided that in the mentioned longitudinal direction of the flat tube in different cross-sections different wall thicknesses are given. However, it is particularly preferred that the flat tube wall has different wall thicknesses in a cross section considered perpendicular to the longitudinal axis of the flat tube, although these wall thicknesses are constant for each point of the cross section in the flat tube longitudinal direction.
  • the ratio of the maximum wall thickness to the minimum wall thickness of the flat tube is greater than 1, 1 or greater than 1, 2 or greater than 1, 3 or greater than 1, 4 or greater than 1, 5 or greater than 1, 7 or greater than 1, 9 or greater than 2. It may also be provided that the mentioned ratio is greater than 2.5 or greater than 3. Also significantly larger values are preferred.
  • the aforementioned relationships relate to a cross section lying perpendicular to the tube longitudinal axis or to the cross sections located perpendicular to the tube longitudinal axis.
  • the wall thicknesses of the flat tube are adapted at least qualitatively to the stress ratios in the flat tube wall occurring during operation and when used in a cooling circuit of an air-conditioning or water-side controlled air conditioning system of a motor vehicle.
  • This may in particular be such that at the highly stressed points, that is to say at the points in which a high tension occurs in the flat tube wall, greater wall thicknesses are also provided and at locations where the stress ratios in the flat tube wall are smaller, smaller wall thicknesses given is. It can be provided that this qualitative adaptation is quite crude.
  • the different wall thickness is adapted quantitatively or quantitatively approximated to the voltage conditions occurring in the flat tube wall during operation and when used in a cooling circuit of an air or water side controlled air conditioning system of a motor vehicle. This can for example be such that the wall thickness is at least for the most part a proportional representation of the stress conditions in the flat tube wall.
  • the radiator has at least one coolant box in which the flat tubes open with at least one of their ends.
  • the radiator on two coolant boxes.
  • the flat tubes of the radiator are arranged and open with their one end in one of these coolant boxes and end with its other end in the other of their coolant boxes.
  • the flat tubes are continuously formed substantially straight.
  • the flat tube ends for example, each be twisted, in particular by 90 °.
  • the flat tubes are free of twisted ends.
  • At least one coolant box has at least one partition, by means of which the interior of this coolant box is divided into separate sub-chambers.
  • a partition wall is a transverse partition, which is arranged transversely to the longitudinal axis of the coolant box.
  • Such a separating wall can also be a longitudinal dividing wall which runs essentially in the longitudinal direction of the coolant box. Also combination of such partitions are preferred.
  • the mentioned partitions may be provided in particular for a deflection of the coolant in the width or in the depth.
  • a plurality of transverse partition walls are arranged at a distance from one another in the longitudinal direction.
  • the flat tube has at least one bead in the cross-section viewed transversely or perpendicular to its longitudinal axis.
  • the flat tube in each case in its transverse or perpendicular to its longitudinal axis considered cross sections in two opposite wall portions of the flat tube wall in each case a bead, said opposite wall sections abut each other for the formation of separate flow channels.
  • This can for example be such that the flat tube wall is pulled inwards at a certain point to form a bead and on the opposite wall portion of this bead also the flat tube wall is pulled inwards to form a bead, said opposite wall portions contact each other, namely especially in the bead area. It can be provided that these beads extend along the entire length of the flat tube, so that by means of the abutting beads different flow channels for the coolant are formed.
  • the bead or the beads are advantageously arranged on the broad side of the flat tube.
  • the flat tube extends in a width direction and a vertical direction perpendicular thereto.
  • the width direction is the direction in which the flat tube has larger dimensions than in the vertical direction.
  • the expansion of the flat tube is thus less than in the width direction, so that it is flat.
  • At least one bead is provided at a plurality of points spaced in the width direction in the cross section considered transversely to the flat tube longitudinal axis. It can be provided that are provided at several spaced apart in the width direction points each on opposite sides beads, the opposite regions, each forming the beads contact each other so that each separate flow channels are formed.
  • the flat tube may be formed, for example, for a single or multiple deflection.
  • a deflection can be provided several times, whereby here each adjacent channels of the flat tube can be separated from each other by means of an addressed bead or an addressed bead pair.
  • the flat tube, the formation of the coolant boxes or the flow interconnection can - in particular by means of one or more arranged in the coolant or the partitions - be such that the same flat tube is flowed through during operation in different, opposite flow directions, to which separate channels are formed.
  • the flat tube has one or more support webs, which is or in the interior of the flat tube is supported on opposite wall portions of the flat tube wall.
  • This can for example be such that the one or more support webs opposite portions of the extending in the width direction of the flat tube flat tube wall relative to each other is supported or supported itself on these opposite sections.
  • the or the support webs may be formed so that they extend along the entire length of the flat tube.
  • Such support webs may be provided, for example, to increase the rigidity.
  • a channel or sub-channel of the flat tube can be divided into sub-channels. It can be provided that these sub-channels, which are formed by means of a support web, are flowed through in the same flow direction by the coolant or open into the respective same chambers of the or the coolant boxes.
  • At least one coolant box has at least one partition, by means of which the interior of this coolant box is subdivided into separate sub-chambers, in which slots are introduced into the partition, in each of which a flat tube is received.
  • This is in particular such that the flat tube is inserted at a seen in its longitudinal direction end in a slot of the partition.
  • each wall beads are introduced and the flat tube is inserted at one end into a slot of the partition that opposite, the slot of the partition wall delimiting sections of the partition extending in these beads.
  • partition wall are sealed against the flat tubes extending into their slots in the slot areas. This seal can be achieved for example by means of soldering.
  • the radiator is in a particularly preferable embodiment, a brazed radiator.
  • the radiator may be soldered, for example, in Lotplattier method.
  • the radiator may comprise at least one row stacked flat tubes, wherein the respective adjacent flat tubes are spaced from each other and wherein in the spaces formed therebetween between adjacent flat tubes corrugated fins are provided for an air flow.
  • This may for example be such that the corrugated fins are arranged such that the air flow is transverse or perpendicular to the coolant flow through the flat tubes.
  • the corrugated ribs may in particular be such that they contact the respective adjacent flat tubes.
  • the corrugated ribs may be soldered to the adjacent flat tubes, for example.
  • the flat tubes can be supported on the ribs or vice versa.
  • the radiator thus preferably has a tube-rib block.
  • the flat tubes are arranged so that their surfaces lying substantially transversely or perpendicular to their heights or extending in the lengthwise direction and in the width direction are aligned substantially parallel to one another.
  • the wall thickness of the flat tube wall in the transverse or perpendicular to the flat tube longitudinal axis considered cross-section in the ge opposite in the widthwise end portions greater than in areas that follow in this cross-section of the widthwise end portions. It is further particularly preferred that the flat tube forms beads, in particular in the manner already explained above, wherein the wall thicknesses of the flat tube wall are greater in the area of these beads and / or in areas adjoining these beads than in the areas which each extend Beading-away connected to the adjoining the beads areas.
  • the wall thicknesses are in the widthwise end regions as well as in the region of the bead and / or in the bead on both sides in the cross section considered perpendicular to the flat tube longitudinal axis adjacent areas is greater than in a widthwise intermediate region located between the one widthwise end region and the nearest region adjacent to the bead region, and greater than the wall thicknesses given in an intermediate region extending between the region another end region and the end region closest to this, located adjacent to the bead area.
  • regions lying in the width direction can be described as follows: first end region, first intermediate region, first region adjacent to a first bead, first bead, second region adjacent to the first bead, second intermediate region, first the second bead adjacent region, second bead, second adjacent to the second bead region, second end region.
  • all flat tubes of the radiator are designed substantially identical.
  • the coolant box on a box lid and a tube sheet connected thereto, wherein the flat tubes open into the tube sheet and / or are plugged into one or more openings provided there.
  • Each of the flat tubes is designed in one piece in an advantageous embodiment.
  • the bead or beads are preferably provided on the flat-tube outer side, provided one or more beads are present.
  • an air conditioner for an air conditioning system of a motor vehicle wherein the air conditioner comprises a suction device for sucking air and an air output device for the output of air flowing through the air conditioner and an air permeable by sucked air evaporator and a through-sucked by air radiator ,
  • the radiator is designed in accordance with the invention.
  • a cooling circuit according to claim 16 is also proposed.
  • an air conditioner according to claim 17 is proposed according to the invention in particular.
  • Fig. 1a to Fig. 1f a flat tube made of a sheet metal, in different views or partial views or stages of manufacture, which can be used in a radiator of known type;
  • FIGS. 2a to 1c show an exemplary radiator according to the invention for a cooling circuit of an air-conditioning or water-side controlled air conditioning system of a motor vehicle, optionally provided with flat tubes according to FIGS. 3a to 3d or according to FIGS. 4a to 4d is;
  • FIGS. 3a to 3d show, in different views and partial views, a first exemplary flat tube which may be installed in an exemplary radiator;
  • FIGS. 4a to 4d show various views or partial views of an exemplary flat tube which may be installed in an exemplary radiator.
  • FIG. 2a shows a radiator 1 with an upper coolant box 2 and a lower coolant box 3, between which a tube-rib block or a heat transfer network 4, consisting of flat tubes 5 and corrugated fins 6, is arranged.
  • the upper water tank 2 consists of a de- ekel 2a and a tube plate 2b, which are circumferentially soldered together.
  • the lower coolant box 3 also has a lid 3a and a tube bottom 3b, which are soldered together.
  • the tube plates 2a, 3b take in a manner not shown, the ends of the flat tubes 5 fluid-tight, so that the tubes 5 are in fluid communication with the two coolant boxes 2, 3.
  • Fig. 2b shows the radiator 1 according to Fig. 2a in a side view
  • Fig. 2c shows the radiator 1 in a plan view
  • a dashed line partition 7 is arranged, which divides the coolant boxes 2 into a coolant inlet chamber 8 and into a coolant outlet chamber 9.
  • the inlet chamber 8 has an opening 10 for the entry of the coolant
  • the chamber 9 has an opening 11 for the exit of the coolant.
  • All parts of the radiator are made of an aluminum alloy and are soldered together.
  • a separation 12 which is shown as a dashed line.
  • the separation 12 divides the flat tube 5 into two chambers or flow channels, which are flowed through in different directions.
  • the coolant flows through the radiator 1 as follows:
  • the coolant enters, represented by the arrow E, through the opening 10 into the coolant box 2 or the inlet chamber 8 and then flows according to the arrow I, through the right in Fig. 2b arranged Chamber from top to bottom, ie in the coolant box 3.
  • the coolant following the arrow U, deflected and enters the left in Fig. 2b located chamber of the flat tube 5, to, following the arrow Il, from bottom to top to stream.
  • the coolant then passes - after twice flow through the flat tube row S - in the outlet chamber 9 of the coolant box 2 and leaves via the outlet opening 11, the arrow A, the radiator 1.
  • radiator 1 Shown is a design of a radiator 1, in which the coolant is deflected "in depth".
  • the radiator can also be designed so that the coolant "in width", ie with respect to a deflection "in depth” by 90 ° turned, deflected.
  • the radiator 1 can be designed so that the coolant is deflected "in width” and "in depth”.
  • the direction of air flow is shown by the arrows L, d. H. the radiator 1 is rubbed in the cross-counterflow:
  • the coolant thus flows first on the leeward side (I) from top to bottom through the radiator, is then opposite to the air flow direction, d. H. in the depth, deflected and then flows in a second passage (II) on the windward side of the radiator 1 from bottom to top.
  • This flow arrangement of coolant and air flow is preferred for high performance; However, it is also a cross-DC possible, d. H. the air flow direction L is rotated by 180 °, i. H. it would take place from right to left in FIG. 2b.
  • the flat tubes 5 are extruded flat tubes.
  • the respective flat tube wall of the flat tubes 5 has different wall thicknesses.
  • FIG. 3 a to 3 d show a first exemplary design of the flat tubes 5.
  • FIG. 3 a shows a plan view of a flat tube 5.
  • FIG. 3 b shows a view from the perspective of the line 1 b - 1 b in FIG. 3 a.
  • Fig. 3c shows a sectional view taken along the line IM c - IM c of Fig. 3a.
  • Fig. 3d shows the area 20 of Fig. 3c in an enlarged view.
  • the flat tube 5 has a flat tube wall 21, by means of which the flat tube interior 22 or flow channels 23, 24 formed by the flat tube are delimited for the coolant.
  • the flat tube wall 22 has different wall thicknesses.
  • wall thicknesses are indicated by way of example by the reference numerals 26, 27, 28, which are relatively larger in comparison to the wall thicknesses, which are indicated by the reference numerals 30, 31.
  • the flat tube 5 has beads 32, 33.
  • the bead 32 is formed by or in a wall portion 34 of the flat tube wall 21, and the bead 33 is formed by or in a wall portion 34 opposite wall portion 35 of the flat tube wall 21.
  • the beads 32, 33 extend along the entire length of the flat tube 5 in its longitudinal direction 25.
  • the beads 34, 35 are provided on the flat tube sides, which are determined by the flat tube width and the flat tube length.
  • the flat tube width or the width direction of the flat tube is indicated schematically in FIG. 3 c by the double arrow 36.
  • the cross section of the flat tube 21, which is perpendicular to the longitudinal axis 25, lies in a plane which is determined by the flat tube width 36 and the flat tube height, wherein the flat tube height is indicated schematically in FIG. 3c by the reference symbols or the double arrow 37.
  • the flat tube width is larger or significantly larger than the flat tube height.
  • the flat tube 5 and the interior 22 of the flat tube 5 is divided into the flow channels 23, 24, and thereby the flow channels 23, 24 are separated.
  • This is here such that the wall sections 34, 35 make contact with each other on their sides facing each other, wherein they are in fluid-tight connection there.
  • a higher or considerably higher wall thickness is given at heavily stressed points or at locations where greater stresses occur than at points at which the stress or the stresses are comparatively lower.
  • a larger wall thickness is here for example in the end regions 38 and 39 on both sides in width directions 36 and on the regions 40, 41 of the flat tube wall 21 adjoining the beads 34, 35 on both sides in the width direction 36 this flat tube wall 21 is given, as in the first intermediate region 42, which is given in the width direction 36 between the first end portion 38 and the first adjoining the beads 32, 33 area 40.
  • the wall thickness is lower than in the regions 38, 39, 40 , 41.
  • a relatively thicker design of the wall thickness of the flat tube wall 21 in said areas 38, 39, 40, 41 may for example also be useful if the internal pressure or the pressure of the flowing in the channels 23, 24 coolant is substantially constant or if it is in each case substantially constant in the respective respective cross sections perpendicular to the flow direction or longitudinal axis 25.
  • 21 different voltages can be given in the flat tube wall 21 in the considered perpendicular to the longitudinal axis 25 cross section along the flat tube wall.
  • the corrugated fins 6 may extend over the entire flat tube width 36 and be traversed in Beitencardi 36 of air.
  • the flat tube 5 can be relatively well supported at least in the areas 42 and 43 to the respectively adjacent corrugated fins 6.
  • the flat tubes 5, each in the stacked flat tube row have a relatively greater wall thickness, at least on the side facing away from the flat tube row, in particular continuously, than other flat tubes in the areas 42, 43. This can be provided, for example be when no supporting means are provided on corresponding outer sides of the stack of flat tubes.
  • FIGS. 4a to 4d differs from the configuration of a flat tube 5 shown in FIGS. 3a to 3d essentially in that in addition a support webs 44 and 45 are respectively provided in the channels 23 and 24, which increases stiffness. It is provided in the embodiment that these support webs 44 and 45 is provided in the longitudinal direction 25 of the flat tube 21 continuously, so that by means of these support webs 44, 45, the flow channels 23, 24 are each divided into two sub-channels. The number of support webs 44, 45 can also be varied.
  • the coolant channels 23, on the one hand, and 24, on the other hand flow through coolant in opposite directions, so that coolant flows from the coolant box 2 into the coolant box 3 through one of these coolant channels 23, 24 Through the other of these coolant channels 23, 24 coolant flows from the coolant box 3 into the coolant box 2.
  • radiator which is in particular a soldered radiator 1
  • the flat tubes 5 according to the reference to FIGS. 3a to 3d or according to the basis of the Fig. 4a to 4d explained configuration may be formed.
  • the flat tubes 5 explained with reference to FIGS. 3 a to 3 d or with reference to FIGS. 4 a to 4 d can also be provided in differently shaped radiators.
  • the wall thickness design are designed for the highest stress and the remaining parts of the walls are oversized, as the embodiment shows - according to the invention, for example, provided that extruded flat tubes used with special design of the flat tube wall thickness (see Figures 3a to 4d), wherein the highly stressed sites have a significantly higher wall thickness than less stressed areas. This can be achieved in total a saving of material and / or weight and a high-quality and process-reliable product.
  • the soldering of the bead no longer has to be ensured - which is necessary in the prior art - since it can already be formed or is formed in the extrusion process.
  • the prior art inevitably an increased use of material and an increased cost situation is given, which can be avoided at least by the designs according to the embodiments of the invention.
  • FIGS. 3 a to 3 d show a flat tube 5 that can be used in the radiator area and that has different wall thicknesses.
  • additional webs 44, 45 on the inside can - as in particular Fig. 4c shows - the rigidity can be increased or further increased.
  • the beads 32, 33 may alternatively also be shaped in the configurations according to FIGS. 3 a to 3d or 4 a to 4 d, as shown in FIG. 5 f.
  • they can each be substantially V-shaped, in particular in cross-section, the tip of the "V” and the ends opposite the tip of the 11 V "being rounded or curved.
  • a design according to the invention a low weight and better results with internal pressure stresses can be achieved.
  • extruded flat tubes in radiators can also lead to lower investment costs for the machinery. It is namely possible to realize different internal geometries with a constant outer geometry of the flat tubes in order to be able to react easily to different requirements. This can for example be such that different types of vehicles, such as cars and commercial vehicles or for various motor vehicle engines in the radiators in question flat tubes are used, each having the same outer geometry.
  • the internal geometry can in each case be adapted to the specific application, which can be implemented well in the extrusion process.

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

Abstract

L'invention concerne un corps chauffant conçu pour un circuit de réfrigérant d'une installation de climatisation de véhicule automobile régulée côté air et côté eau. Selon l'invention, le corps chauffant (1) comprend une pluralité de tuyaux plats (5) qui peuvent être traversés par un réfrigérant, et qui comportent respectivement une paroi de tuyau plat (21) pour délimiter au moins un canal (23, 24) d'étendant à l'intérieur (22) du tuyau plat. La paroi de tuyau plat (21) d'au moins un des tuyaux plats présente différentes épaisseurs de paroi (26, 27, 28, 29, 30, 31).
PCT/EP2006/009592 2005-10-07 2006-10-04 Corps chauffant, circuit de refrigerant, appareil de climatisation pour une installation de climatisation de vehicule automobile, et installation de climatisation pour un vehicule automobile WO2007042186A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06806030.0A EP1934545B1 (fr) 2005-10-07 2006-10-04 Corps chauffant, circuit de refrigerant, appareil de climatisation pour une installation de climatisation de vehicule automobile, et installation de climatisation pour un vehicule automobile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005048227A DE102005048227A1 (de) 2005-10-07 2005-10-07 Heizkörper, Kühlkreislauf, Klimagerät für eine Kraftfahrzeug-Klimaanlage sowie Klimaanlage für ein Kraftfahrzeug
DE102005048227.9 2005-10-07

Publications (1)

Publication Number Publication Date
WO2007042186A1 true WO2007042186A1 (fr) 2007-04-19

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Country Status (3)

Country Link
EP (2) EP3001130A1 (fr)
DE (1) DE102005048227A1 (fr)
WO (1) WO2007042186A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055624A1 (de) 2007-12-10 2009-06-18 Behr Gmbh & Co. Kg Wärmeträger, insbesondere Heizkörper für Kraftfahrzeuge
DE102009020711A1 (de) * 2009-05-11 2010-11-18 Behr Gmbh & Co. Kg Heizkörper für ein Kraftfahrzeug mit einer Brennkraftmaschine
DE102009021796A1 (de) 2009-05-18 2010-11-25 Behr Gmbh & Co. Kg Verschaltung zweier Heizkörper zu einem Hochleistungskörper
DE102011076641B4 (de) * 2011-05-27 2023-02-23 Purem GmbH Wärmeübertragungsanordnung und Wärmeübertrager
EP3428562A1 (fr) 2017-07-14 2019-01-16 Nissens A/S Échangeur de chaleur comprenant des tubes de fluide ayant une première et une seconde paroi intérieure

Citations (7)

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Publication number Priority date Publication date Assignee Title
EP1014024A1 (fr) * 1997-08-08 2000-06-28 Zexel Corporation Tube pour echangeurs thermiques et procede de fabrication correspondant
DE19920102A1 (de) * 1999-05-03 2000-11-09 Behr Gmbh & Co Mehrkammerrohr und Wärmeübertrageranordnung für ein Kraftfahrzeug
US20030141048A1 (en) * 2002-01-31 2003-07-31 Sangok Lee Heat exchanger tube and heat exchanger using the same
EP1359383A2 (fr) * 2002-05-03 2003-11-05 Behr GmbH & Co. Echangeur de chaleur
EP1429101A2 (fr) * 2002-12-11 2004-06-16 Modine Manufacturing Company Echangeur de chaleur comprenant des tubes en forme de coin , avec écoulement équilibré du fluide réfrigérant
WO2004076930A2 (fr) * 2003-02-27 2004-09-10 Behr Gmbh & Co. Kg Dispositif de transfert de chaleur
WO2005085738A1 (fr) * 2004-03-05 2005-09-15 Behr Gmbh & Co. Kg Dispositif d'echange de chaleur et procede de fabrication

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JPS59129392A (ja) * 1983-01-10 1984-07-25 Nippon Denso Co Ltd 熱交換器
DE19752139B4 (de) * 1997-11-25 2004-06-03 Behr Gmbh & Co. Wärmeübertrager für ein Kraftfahrzeug

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Publication number Priority date Publication date Assignee Title
EP1014024A1 (fr) * 1997-08-08 2000-06-28 Zexel Corporation Tube pour echangeurs thermiques et procede de fabrication correspondant
DE19920102A1 (de) * 1999-05-03 2000-11-09 Behr Gmbh & Co Mehrkammerrohr und Wärmeübertrageranordnung für ein Kraftfahrzeug
US20030141048A1 (en) * 2002-01-31 2003-07-31 Sangok Lee Heat exchanger tube and heat exchanger using the same
EP1359383A2 (fr) * 2002-05-03 2003-11-05 Behr GmbH & Co. Echangeur de chaleur
EP1429101A2 (fr) * 2002-12-11 2004-06-16 Modine Manufacturing Company Echangeur de chaleur comprenant des tubes en forme de coin , avec écoulement équilibré du fluide réfrigérant
WO2004076930A2 (fr) * 2003-02-27 2004-09-10 Behr Gmbh & Co. Kg Dispositif de transfert de chaleur
WO2005085738A1 (fr) * 2004-03-05 2005-09-15 Behr Gmbh & Co. Kg Dispositif d'echange de chaleur et procede de fabrication

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Title
ANONYMOUS: "High performance, high strength, light weight, multi-port extruded tube", RESEARCH DISCLOSURE, MASON PUBLICATIONS, HAMPSHIRE, GB, vol. 354, no. 29, October 1993 (1993-10-01), XP007119365, ISSN: 0374-4353 *

Also Published As

Publication number Publication date
EP1934545A1 (fr) 2008-06-25
EP3001130A1 (fr) 2016-03-30
EP1934545B1 (fr) 2017-12-27
DE102005048227A1 (de) 2007-04-12

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