EP1934545B1 - 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
EP1934545B1
EP1934545B1 EP06806030.0A EP06806030A EP1934545B1 EP 1934545 B1 EP1934545 B1 EP 1934545B1 EP 06806030 A EP06806030 A EP 06806030A EP 1934545 B1 EP1934545 B1 EP 1934545B1
Authority
EP
European Patent Office
Prior art keywords
flat tube
air
heating body
flat
wall
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.)
Not-in-force
Application number
EP06806030.0A
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German (de)
English (en)
Other versions
EP1934545A1 (fr
Inventor
Hans-Peter Heuss
Matthias Traub
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
Mahle Behr GmbH and Co KG
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Publication date
Application filed by Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Priority to EP15184912.2A priority Critical patent/EP3001130A1/fr
Publication of EP1934545A1 publication Critical patent/EP1934545A1/fr
Application granted granted Critical
Publication of EP1934545B1 publication Critical patent/EP1934545B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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.
  • the wall thickness of the flat tubes often has to be greater than in passenger car applications.
  • the field of passenger cars as well as in the field of commercial vehicles exist - taken by itself - in different vehicle types different requirements for the dimensioning of the wall thickness of the flat tubes.
  • Known radiators usually have at least one coolant box, which forms a bottom.
  • one or more partitions may be provided, which divide the interior of this box into sub-chambers and serve to deflect the coolant flowing through the radiator.
  • the partitions may be arranged to effect a deflection in depth or to effect 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 formed on this.
  • 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 discs are used.
  • the maximum occurring during operation voltage of the flat tubes is usually determined in each specific application. Depending on this maximum occurring voltage then the required sheet thickness of the sheet is determined, from which then the flat tube is formed in an illustrated manner.
  • Fig. 1a to 1f show such a flat tube in different partial views.
  • Fig. 1a shows the flat tube 50 from above.
  • the reference numeral 52 schematically indicates the longitudinal axis or longitudinal direction of this flat tube 50.
  • Fig. 1b shows the flat tube according to Fig. 1a from the side or from the point of view of the line l bl b in Fig. 1
  • the Fig. 1c and 1d show sections along the line l cl c and l dl d Fig. 1 that is the same place. On the differences in the Fig. 1c and 1d Illustrated designs will be discussed below.
  • Fig. 1e shows area 54 Fig. 1c in an enlarged view and Fig. 1f shows just this area 54 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 portions of the flat tube wall 56 that form the beads 62 and 64 contact each other at their facing sides and, as indicated by the blackened areas 66, 68 in FIG Fig. 1d are provided for the suggestion provided there solder joints - soldered together so that against each other sealed channels 58, 60 are formed in the flat tube.
  • the flat tube 50 is in Fig. 1c shown before 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 the Fig. 1a to 1f is not highlighted separately.
  • the Fig. 5a to 5f show views of a known flat tube, which substantially correspond to the views 1a to 1f.
  • flat tube In contrast to the basis of the Fig. 5a to 5f explained flat tube are in the design according to the Fig. 5a to 5f the beads 62, 64 but shaped differently. These beads 62, 64 are in the design according to the Fig. 5a to 5f in cross-section each substantially V-shaped, wherein the tip of the "V" and the opposite ends of the tip of the "V” are rounded or curved.
  • EP 1 359 383 A and WO 2004/076930 A2 disclose further radiators with flat tubes having different wall thicknesses.
  • the invention is an object of the invention 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 is proposed.
  • An inventive air conditioner with such a radiator is the subject of claim 10.
  • a cooling circuit according to the invention for an air or water side controlled air conditioning with a radiator is the subject of claim 11.
  • An automotive air conditioning according to the invention is the subject of claim 12.
  • Preferred embodiments are 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 (respective) flat tube wall of one, several or all of these flat tubes has different wall thicknesses, wherein the at least one different wall thicknesses having flat tube forms at least one bead, wherein the wall thickness of the flat tube wall in transverse or perpendicular to the longitudinal axis of the flat tube considered cross-section in the width direction lying end regions and in which, in particular on both sides, is adjacent to the at least one bead adjacent areas greater than in the areas that are seen in the width direction to the widthwise end portions, and / or greater than in the areas that are in Width direction seen at the connect to the at least one bead subsequent areas and wherein the flat tubes are extruded flat tubes.
  • the 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 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 configuration of one or the flat tubes of the radiator according to the invention are shown below in particular with reference to "one" 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 cross-sections of the flat tube seen in the mentioned longitudinal direction are designed identically. Alternatively, however, it may 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 preferably provided that the flat tube wall has different wall thicknesses in a cross-section considered perpendicular to the flat tube longitudinal axis, 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 as 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 in 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 at least qualitatively adapted to the voltage conditions in the flat tube wall occurring during operation and when used in a cooling circuit of an air or water-side controlled air conditioning system of a motor vehicle.
  • This may in particular be such that at the highly stressed points, ie at the points where in the flat tube wall, a high voltage occurs, even greater wall thicknesses are given and are given at locations where the stress ratios in the flat tube wall are smaller, lower wall thicknesses .
  • 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 at one end in the 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 partition may also be a longitudinal partition which extends substantially in the longitudinal direction of the coolant box. Combinations of such partitions are also 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 be, for example, such that the flat tube wall is pulled inwards at a certain point to form a bead and the flat tube wall is pulled inwards on the opposite wall section of this bead, forming a bead, these opposite wall sections contact each other, in particular 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 height 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 multiple times, in each case adjacent channels of the flat tube can be separated from each other by means of an addressed bead or an addressed pair of beads.
  • 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 divided into separate sub-chambers, wherein in the partition slots are introduced, 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.
  • - as mentioned above - are each at opposite portions of the flat tube 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.
  • the dividing wall is sealed off from 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 corrugated 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 length direction and width direction are aligned substantially parallel to each other.
  • the wall thickness of the flat tube wall in the transversely or perpendicularly to the longitudinal axis of the flat tube considered cross-section in the widthwise end portions and in which, in particular on both sides, is adjacent to the at least one bead areas greater than in the areas seen in the width direction connect to the lying in the width direction end portions, and / or is greater than in the areas that follow in the width direction of the adjoining the at least one bead areas and wherein the flat tubes are extruded flat tubes.
  • 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.
  • widthwise spaced beads or bead pairs would be used between the second, to the second bead adjacent region and the intermediate region adjacent to the second end region, further sequences of intermediate region, the i-th bead adjacent first region, i-th bead, the i-th bead adjacent second region, be given, where i a natural number is that from three to n, where n is the number of widthwise spaced beads
  • the wall thicknesses are greater in the region of the end regions and of the respective first and second respective regions adjacent to the beads and / or in the region of the respective beads than in the intermediate regions.
  • 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 pipe outside, if one or more beads are given.
  • the at least one flat tube having different wall thicknesses forms at least one bead, the wall thickness of the flat tube wall in the cross section viewed transversely or perpendicular to the longitudinal axis of the flat tube in the end regions lying in the widthwise direction and in which, in particular on both sides, adjoining the at least one bead Areas larger than in the regions which adjoin the widthwise end regions in the width direction and / or which are larger than in the regions which adjoin the regions adjoining the at least one bead in the width direction.
  • 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 discharge device for the output of the air conditioner flowing through air and a sucked air sucked through by evaporator and a through-sucked air from the 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. 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 lid 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 box 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 in the coolant box 2 and the inlet chamber 8 and then flows, according to the arrow I, through the in Fig. 2b right-hand chamber arranged from top to bottom, ie in the coolant box 3.
  • the coolant following the arrow U, deflected and enters the in Fig. 2b on the left-hand chamber of the flat tube 5, in order to flow, following the arrow II, from bottom to top.
  • the coolant then passes - after twice flow through the flat tube row S - in the outlet chamber 9 of the coolant tank 2 and leaves via the outlet opening 11, following the arrow A, the radiator 1.
  • radiator 1 So is shown a design of a radiator 1, wherein the coolant "in the depth "is redirected.
  • 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 air flow direction is shown by the arrows L, ie the radiator 1 is rubbed in the cross-counterflow:
  • the coolant thus flows first on the leeward (I) from top to bottom through the radiator, is then against the air flow direction, ie 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; it is, however, also one Cross-direct current possible, ie the air flow direction L is rotated by 180 °, ie it would be in the Fig. 2b from right to left.
  • the flat tubes 5 are extruded flat tubes.
  • the respective flat tube wall of the flat tubes 5 has different wall thicknesses.
  • Exemplary configurations of the flat tubes 5, optionally in the design according to the Fig. 2a to 2f can be given below in relation to the Fig. 3a to 3d , on the one hand, and 4a to 4d, on the other hand explained.
  • the Fig. 3a to 3d show a first exemplary design of the flat tubes.
  • 5 Fig. 3a shows a plan view of a flat tube.
  • 5 Fig. 3b shows a view from the perspective of line III b - III b Fig. 3a.
  • Fig. 3c shows a sectional view taken along the line III c - III c Fig. 3a.
  • Fig. 3d shows the area 20 Fig. 3c in 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.
  • Fig. 3c In the perpendicular to the flat tube longitudinal axis 25 seen cross-section (see. Fig. 3c ), the flat tube wall 22 on different wall thicknesses. In Fig. 3c are indicated by the reference numerals 26, 27, 28, 29 wall thicknesses, which are relatively larger compared 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 in Fig. 3c schematically indicated 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 in Fig. 3c is indicated schematically by the reference numerals and 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 larger wall thickness of this flat tube wall is here, for example, in the end regions 38 and 39 provided on both sides in width directions 36 and on the beads 34, 35 on both sides in the width direction 36 21 than in the first intermediate region 42, which is provided in the width direction 36 between the first end region 38 and the first region 40 adjoining the beads 32, 33.
  • 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 expedient if the internal pressure or the pressure of the flowing in the channels 23, 24 coolant is substantially constant in each case or if it is in the respective each perpendicular to the flow direction or longitudinal axis 25 located cross sections each substantially constant.
  • 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.
  • each corrugated fins 26 are supported on the flat tube 5 and soldered there.
  • the corrugated fins 6 may extend over the entire flat tube width 36 and be traversed in the width direction 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.
  • At the ends seen in the width direction 36 of the flat tube 21 is - at least along the height - no or poor support on corrugated fins 6 given; Even in the region of the beads 32, 33, no or poor support is given to the corrugated fins 6. This can lead to higher voltages forming on the flat tube wall 21 in corresponding regions, which can also extend to adjacent regions.
  • 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.
  • a support bar 44 or 45 is provided, which act stiffness-increasing. It is provided in the embodiment that these support webs 44 and 45 are provided continuously in the longitudinal direction 25 of the flat tube 21, 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. Used in a design according to the Fig.
  • the coolant channels 23, on the one hand, and 24, on the other hand flows 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 and coolant from the coolant box through the other of these coolant channels 23, 24 3 flows into the coolant box 2.
  • the flat tubes 5 according to the basis of Fig. 3a to 3d or according to the basis of Fig. 4a to 4d be designed explained design.
  • illustrated flat tubes 5 can also be provided in differently shaped radiators.
  • the invention provides that extruded flat tubes are used with special design of the flat tube wall thickness (see. Fig. 3a to 4d ), where the highly stressed areas 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 must not be guaranteed - which in the prior art is required - since this can already be formed in the extrusion process or is formed. In the prior art, however, 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.
  • the show Fig. 3a to 3d a flat tube 5 that can be used in the radiator area and has different wall thicknesses.
  • additional webs 44, 45 on the inside can - as in particular Fig. 4c shows - the stiffness can be increased or increased further.
  • the beads 32, 33 can in the designs according to the Fig. 3a to 3d or 4a to 4d, for example, alternatively be shaped as in Fig. 5f is shown. Thus, 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 "V” being rounded or curved.
  • 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 realized 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)

Claims (12)

  1. Corps de chauffe pour un circuit de refroidissement d'un système de climatisation d'un véhicule automobile, ledit système de climatisation étant régulé côté entrée d'air ou côté entrée d'eau, où le corps de chauffe (1) présente une multiplicité de tubes plats (5) traversés par un liquide de refroidissement, tubes plats qui présentent à chaque fois une paroi de tube plat (21) servant à la délimitation d'au moins un conduit (23, 24) s'étendant à l'intérieur du tube plat (22), et la paroi de tube plat (21) d'au moins l'un des tubes plats (5) présente différentes épaisseurs de parois (26; 27, 28, 29, 30, 31), où le tube plat (5) au moins au nombre de un présentant différentes épaisseurs de parois forme au moins une moulure en creux (32, 33), caractérisé en ce que l'épaisseur de paroi de la paroi de tube plat (21), vue en section de façon transversale ou perpendiculaire par rapport à l'axe longitudinal (25) du tube plat (5), dans les zones d'extrémités (38, 39) situées dans le sens de la largeur (36), et dans les zones (40, 41) faisant suite, en particulier des deux côtés, à la moulure en creux (32, 33) au moins au nombre de un, est supérieure à celle dans les zones (42, 43) qui, vues dans le sens de la largeur (36), font suite aux zones d'extrémités (38, 39) situées dans le sens de la largeur (36), et / ou est supérieure à celle dans les zones (42, 43) qui, vues dans le sens de la largeur (36), font suite aux zones (40, 41) faisant suite à la moulure en creux (32, 33) au moins au nombre de un, et où les tubes plats (5) sont des tubes plats (5) extrudés.
  2. Corps de chauffe selon la revendication 1, caractérisé en ce que le rapport de l'épaisseur de paroi maximale, relativement à l'épaisseur de paroi minimale du tube plat (5) au moins au nombre de un présentant différentes épaisseurs de parois, est supérieur à 1,1.
  3. Corps de chauffe selon la revendication 1 ou 2, caractérisé en ce que les épaisseurs de parois (26, 27, 28, 29, 30, 31) du tube plat (5) au moins au nombre de un présentant différentes épaisseurs de parois (26, 27, 28, 29, 30, 31) sont adaptées, au moins qualitativement, aux conditions de tension qui se produisent, dans la paroi de tube plat (21), au cours du fonctionnement et lors du montage dans un circuit de refroidissement d'un système de climatisation d'un véhicule automobile, ledit système de climatisation étant régulé côté entrée d'air ou côté entrée d'eau.
  4. Corps de chauffe selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de chauffe (1) présente au moins un bac de liquide de refroidissement (2, 3), bac dans lequel débouchent les tubes plats (5) par au moins l'une de leurs extrémités.
  5. Corps de chauffe selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un bac de liquide de refroidissement (2) présente au moins une paroi de séparation (7) au moyen de laquelle l'espace intérieur de ce bac de liquide de refroidissement (2) est subdivisé en chambres partielles (8, 9) séparées l'une de l'autre.
  6. Corps de chauffe selon la revendication 5, caractérisé en ce que la paroi de séparation (7) forme des fentes dans lesquelles un tube plat (5) est à chaque fois emboîté par une extrémité vue dans le sens de sa longueur (25), où le tube plat (5) respectif est entouré, de l'extérieur, par la fente respective dont la section est vue de façon transversale ou perpendiculaire par rapport à l'axe longitudinal (25) du tube plat (5) et ce, de manière telle, qu'au moins une partie de la paroi de séparation (7), délimitant la fente, s'engage dans une moulure en creux (32, 33) du tube plat (5).
  7. Corps de chauffe selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de chauffe (1) présente au moins une rangée de tubes plats empilés (5), où les tubes plats (5) à chaque fois adjacents sont disposés en étant espacés les uns des autres, et il est prévu, pour une circulation d'air, des ailettes ondulées (6) situées dans les espaces intermédiaires ainsi formés entre des tubes plats (5) à chaque fois adjacents.
  8. Corps de chauffe selon l'une quelconque des revendications précédentes, caractérisé en ce que le tube plat (5) au moins au nombre de un, présentant différentes épaisseurs de parois (26, 27, 28, 29, 30, 31), présente une ou plusieurs barrettes de support (44, 45), laquelle barrette ou lesquelles barrettes de support est ou sont en appui, à l'intérieur (22) du tube plat (5), sur des parties de parois opposées de la paroi de tube plat (21).
  9. Corps de chauffe selon l'une quelconque des revendications précédentes, caractérisé en ce que les tubes plats (5) du corps de chauffe (1), dans leur totalité, sont formés pratiquement de façon identique.
  10. Appareil de climatisation pour un système de climatisation d'un véhicule automobile, ledit appareil de climatisation comprenant un dispositif d'aspiration servant à l'aspiration d'air, comprenant un dispositif de sortie d'air pour la sortie d'air, comprenant un évaporateur traversé par de l'air aspiré et comprenant un corps de chauffe (1) traversé par de l'air aspiré, caractérisé en ce que le corps de chauffe (1) est conçu selon l'une quelconque des revendications précédentes.
  11. Circuit de refroidissement pour un système de climatisation d'un véhicule automobile, ledit système de climatisation étant régulé côté entrée d'air ou côté entrée d'eau, caractérisé en ce qu'un corps de chauffe (1) est intégré dans ce circuit de refroidissement, corps de chauffe qui présente une multiplicité de tubes plats (5) traversés par le liquide de refroidissement du circuit de refroidissement, caractérisé en ce que le corps de chauffe (1) est conçu selon l'une quelconque des revendications 1 à 9.
  12. Système de climatisation pour un véhicule automobile, caractérisé en ce que ce système de climatisation présente un corps de chauffe (1) selon l'une quelconque des revendications 1 à 9 et / ou un appareil de climatisation selon la revendication 10 et / ou un circuit de refroidissement selon la revendication 11.
EP06806030.0A 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 Not-in-force EP1934545B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15184912.2A EP3001130A1 (fr) 2005-10-07 2006-10-04 Corps chauffant, circuit réfrigerant, appareil de climatisation pour une installation de climatisation de véhicule automobile, et installation de climatisation pour un véhicule 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
PCT/EP2006/009592 WO2007042186A1 (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

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP15184912.2A Division-Into EP3001130A1 (fr) 2005-10-07 2006-10-04 Corps chauffant, circuit réfrigerant, appareil de climatisation pour une installation de climatisation de véhicule automobile, et installation de climatisation pour un véhicule automobile
EP15184912.2A Division EP3001130A1 (fr) 2005-10-07 2006-10-04 Corps chauffant, circuit réfrigerant, appareil de climatisation pour une installation de climatisation de véhicule automobile, et installation de climatisation pour un véhicule automobile

Publications (2)

Publication Number Publication Date
EP1934545A1 EP1934545A1 (fr) 2008-06-25
EP1934545B1 true EP1934545B1 (fr) 2017-12-27

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP15184912.2A Withdrawn EP3001130A1 (fr) 2005-10-07 2006-10-04 Corps chauffant, circuit réfrigerant, appareil de climatisation pour une installation de climatisation de véhicule automobile, et installation de climatisation pour un véhicule automobile
EP06806030.0A Not-in-force 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

Family Applications Before (1)

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EP15184912.2A Withdrawn EP3001130A1 (fr) 2005-10-07 2006-10-04 Corps chauffant, circuit réfrigerant, appareil de climatisation pour une installation de climatisation de véhicule automobile, et installation de climatisation pour un véhicule automobile

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

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Publication number Priority date Publication date Assignee Title
JPS59129392A (ja) * 1983-01-10 1984-07-25 Nippon Denso Co Ltd 熱交換器
JP3212268B2 (ja) * 1997-08-08 2001-09-25 株式会社ゼクセルヴァレオクライメートコントロール 熱交換器用チューブとその製造方法
DE19752139B4 (de) * 1997-11-25 2004-06-03 Behr Gmbh & Co. Wärmeübertrager für ein Kraftfahrzeug
DE19920102B4 (de) * 1999-05-03 2009-01-02 Behr Gmbh & Co. Kg Mehrkammerrohr und Wärmeübertrageranordnung für ein Kraftfahrzeug
KR100906769B1 (ko) * 2002-01-31 2009-07-10 한라공조주식회사 오뚜기형 유로를 갖는 열교환기용 튜브 및 이를 이용한열교환기
DE10319226B4 (de) * 2002-05-03 2021-12-02 Mahle International Gmbh Vorrichtung zur Kühlung oder Heizung eines Fluids
US6973965B2 (en) * 2002-12-11 2005-12-13 Modine Manufacturing Company Heat-exchanger assembly with wedge-shaped tubes with balanced coolant flow
DE20303139U1 (de) * 2003-02-27 2003-06-18 Behr GmbH & Co. KG, 70469 Stuttgart Vorrichtung zur Wärmeübertragung
EP1728038B1 (fr) * 2004-03-05 2011-07-27 Behr GmbH & Co. KG Dispositif d'echange de chaleur et procede de fabrication

Also Published As

Publication number Publication date
EP3001130A1 (fr) 2016-03-30
WO2007042186A1 (fr) 2007-04-19
DE102005048227A1 (de) 2007-04-12
EP1934545A1 (fr) 2008-06-25

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