EP2438384B1 - Header for a condenser - Google Patents

Header for a condenser Download PDF

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Publication number
EP2438384B1
EP2438384B1 EP10717161.3A EP10717161A EP2438384B1 EP 2438384 B1 EP2438384 B1 EP 2438384B1 EP 10717161 A EP10717161 A EP 10717161A EP 2438384 B1 EP2438384 B1 EP 2438384B1
Authority
EP
European Patent Office
Prior art keywords
transverse channels
flat tubes
longitudinal channel
lid
cover
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.)
Active
Application number
EP10717161.3A
Other languages
German (de)
French (fr)
Other versions
EP2438384A2 (en
Inventor
Uwe FÖRSTER
Kurt Molt
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
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.)
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Publication date
Application filed by Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP2438384A2 publication Critical patent/EP2438384A2/en
Application granted granted Critical
Publication of EP2438384B1 publication Critical patent/EP2438384B1/en
Active 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0073—Gas coolers

Definitions

  • the present invention relates to a manifold for a heat exchanger and to a capacitor.
  • the DE 10 2007 016 050 A1 describes a heat exchanger having tubes coupled to a header tank.
  • the header tank includes a plate member to which the ends of the tubes are coupled, a tank member connected to the plate member, and an intermediate member disposed between the tank member and the plate member.
  • principle-related doublings of the material occur. This is unfavorable for weight and thus cost reasons and from a soldering point of view.
  • the US 2006/0162917 A1 relates to a heat exchanger, in particular a heat exchanger for carbon dioxide, in which a tank with a number of domes is coupled to a collector and wherein a connecting element is arranged with a connecting flow channel between the collector and the tank.
  • the headers of condensers made for the refrigerant R134a may be in two parts and consist of the so-called bottom and a lid. Especially with capacitors for a C02 refrigerant circuit, the so-called gas coolers, the previous design can not be maintained due to the higher pressure levels.
  • the present invention is based on the finding that a two-part manifold can save weight and thus costs.
  • By arranging special channels in the interior of the collecting tube it can be avoided that the main flow channels are partially blocked by flat tubes of the heat exchanger and thus produce a pressure drop on the refrigerant side.
  • the inventive approach allows cost savings, a reduction in weight, a reduction of pressure losses and an increase in process reliability.
  • the present invention provides a two-part manifold for a heat exchanger having a plurality of flat tubes arranged in a longitudinal direction, comprising: a bottom having a plurality of transversely disposed openings for coupling the manifold to the plurality of flat tubes; and a lid disposed opposite the bottom, the lid being formed or extruded from a sheet, the bottom being fluid-tightly connected to the lid, at least longitudinally extending edges thereof, the lid resting on one of the bottom facing side a plurality of transverse channels, which are arranged opposite to the plurality of openings, and having only one longitudinally extending longitudinal channel.
  • the heat exchanger can be a gas cooler for CO 2 as a refrigerant. Alternatively, another suitable gaseous or liquid fluid may be used as the refrigerant or cooling medium.
  • the flat tubes may be configured to guide the fluid through the heat exchanger.
  • the floor is a contact element between the heat exchanger and the manifold.
  • the floor may be fixedly connected to a longitudinal side of the heat exchanger. In this case, the floor may be formed as a separate component or as part of the heat exchanger.
  • the openings of the bottom can have a cross-section adapted to the flat tubes. Ends of the flat tubes may be inserted into the openings. Outer sides of the flat tubes can be sealed off from the bottom in a fluid-tight manner.
  • the openings allow an inflow of the refrigerant from the flat tubes in an interior of the manifold and vice versa.
  • the lid may be connected to the floor so that a cavity is formed between the lid and the floor.
  • the cavity may be formed by the longitudinal channel in the lid.
  • the longitudinal channel may be formed as a recess or as a deflection in the lid.
  • the longitudinal channel may extend over an entire length of the lid.
  • the transverse channels may increase the cavity between the lid and the bottom and be connected to the longitudinal channel, respectively.
  • the transverse channels may be formed as a recess or as a deflection in the lid.
  • the transverse channels can be aligned at right angles to the longitudinal channel.
  • the transverse channels are arranged opposite the openings of the bottom and thus opposite the ends of the flat tubes.
  • a cross section of the transverse channels may be adapted in shape to a shape of a cross section of the ends of the flat tubes. Especially the cross-section of the transverse channels may be greater than
  • Each of the plurality of openings of the bottom may be formed to receive one end of each of the plurality of flat tubes, and each of the plurality of transverse channels may be formed to respectively form a clearance between the lid and a respective end of one of the plurality of flat tubes.
  • each flat tube can be assigned exactly one opening and exactly one transverse channel. The free space allows a compensation of process variations in the production of the manifold or the heat exchanger.
  • each of the plurality of cross channels may be formed to allow fluid flow between the longitudinal channel and an interior of the plurality of flat tubes.
  • the plurality of transverse channels can be arranged on both sides of the longitudinal channel.
  • the longitudinal channel may be arranged, for example, centrally to the flat tubes.
  • the plurality of transverse channels may be arranged on one side of the longitudinal channel.
  • the bottom may have a plurality of further transverse channels, which may be arranged opposite the transverse channels of the lid.
  • the cross-section or the depth of the transverse channels arranged in the cover can be increased.
  • the bottom may have a further longitudinal channel, which may be arranged opposite the longitudinal channel of the lid.
  • the cross section or the depth of the longitudinal channel arranged in the lid can be increased.
  • the bottom may have a curvature for forming the further longitudinal channel.
  • the curvature may be formed from an inner side of the collecting tube in the direction of the heat exchanger, when the base is connected to the heat exchanger.
  • one, the longitudinal channel opposite surface portion of the floor be made flat.
  • Such a floor can be produced inexpensively.
  • the lid is formed from a sheet, or is extruded.
  • the lid can be manufactured by known manufacturing methods.
  • the transverse channels can be formed by material doubling of the lid.
  • the floor may have, at longitudinally extending edges, composites configured to enclose opposite edges of the cover.
  • the composite devices may include tabs, caulkings or toxics and provide a bottom to top connection suitable to prevent leakage of fluid in the header.
  • the bottom and the cover may be formed to receive a partition at least at a transversely to the longitudinal end.
  • the partition can be inserted or inserted into the manifold.
  • the partition may be configured to provide termination of the manifold.
  • the partition can also be used for flow guidance.
  • the present invention further provides a condenser, comprising: a heat exchanger having a plurality of in a longitudinal direction arranged flat tubes; and a collecting pipe according to the invention, which is connected to the heat exchanger.
  • Such a condenser can be used, for example, as a gas cooler for a CO2 refrigerant circuit.
  • Fig. 1 shows a condenser with a manifold 100 and a heat exchanger 102, according to an embodiment of the present invention.
  • the heat exchanger 102 has a plurality of flat tubes 112, which with coupled to the manifold 100.
  • the manifold 100 is connected at one end of the heat exchanger 102 with this.
  • the flat tubes 112 are aligned parallel to each other and arranged side by side with respect to a longitudinal direction.
  • the manifold 100 is aligned in the longitudinal direction so that the flat tubes 112 may be aligned orthogonal to the manifold 100.
  • cooling elements such as cooling fins may be arranged between the flat tubes 112.
  • the flat tubes 112 are designed to guide a refrigerant, for example a fluid.
  • respective ends of the flat tubes 112 are connected to corresponding openings of the manifold 100. In this way, the refrigerant from the flat tubes 112 can flow into the manifold 100, and vice versa.
  • Fig. 2 shows a cross-sectional view through the in Fig. 1 Shown are a plurality of transverse channels 214, which are arranged on a, the flat tubes opposite the inside of the collecting tube 100. For the sake of clarity, only one of the transverse channels shown is provided with the reference numeral 214.
  • Fig. 3 shows a side view of the in Fig. 1 shown condenser with the manifold 100 and the heat exchanger 102.
  • the manifold 100 has a bottom 316 and a lid 318 on.
  • the bottom 316 and the lid 318 are joined together at their longitudinal edges so that the refrigerant in the header 100 can not escape.
  • the bottom 316 and the lid 318 are formed so that there is a cavity for guiding the refrigerant therebetween.
  • the lid 318 has a longitudinal channel 320 for guiding the refrigerant.
  • the lid 318 has one outward curvature on. The curvature may be formed centrally in the lid 318 and extend in the longitudinal direction over the entire length of the lid 318.
  • the floor 316 may be fixedly connected to or part of a body of the heat exchanger 102.
  • the bottom 316 has openings for receiving end pieces of the flat tubes arranged in the heat exchanger on a side facing the heat exchanger. Via the openings, the refrigerant between the flat tubes and between the bottom 316 and the lid 318 arranged interior of the manifold 100 can be replaced.
  • Fig. 4 shows a representation of the lid 318, the in Fig. 1 shown capacitor, according to an embodiment of the present invention.
  • the lid 318 Transverse to the longitudinal direction and thus transversely to the longitudinal channel 320, the lid 318 has a plurality of transverse channels 214.
  • the number of transverse channels can correspond to the number of flat tubes of the heat exchanger, with which the manifold is coupled.
  • the transverse channels 214 are aligned with the openings of the floor and thus with the flat tubes. In this way, the refrigerant can enter via the transverse channels 214 in the flat tubes or emerge from the flat tubes via the transverse channels 214.
  • the transverse channels 214 can each extend over the entire width of the lid 318.
  • the transverse channels 214 form recesses in the cover and can each be interrupted in the middle by the longitudinal channel 320, so that mutually opposite sections of the transverse channels 214 can extend on both sides of the longitudinal channel 320.
  • the longitudinal channel 320 is connected to the transverse channels 314 so that the refrigerant between the longitudinal channel 320 and transverse channels 314 can flow back and forth.
  • Fig. 5 shows a rear view of the in Fig. 4 shown lid 318 with the longitudinal channel 320 and the transverse channels 214.
  • the in the FIGS. 4 and 5 shown lid can be formed from a sheet metal.
  • Fig. 6 shows a representation of the lid 318, the in Fig. 1 shown capacitor, according to another embodiment of the present invention.
  • the lid 318 shown is opposite to in FIG Fig. 4 embodiment shown by means of another manufacturing process.
  • Fig. 7 shows a representation of the lid 318, the in Fig. 1 shown capacitor, according to another embodiment of the present invention.
  • the lid 318 shown is opposite to in FIG Fig. 4 embodiment shown by means of another manufacturing process.
  • the in the FIGS. 6 and 7 Lids shown can be extruded.
  • Fig. 8 shows a representation of the lid 318, the in Fig. 1 shown capacitor, according to another embodiment of the present invention.
  • the lid 318 shown is opposite to in FIG Fig. 4 embodiment shown by means of another manufacturing process.
  • the transverse channels 214 may be formed by material doubling.
  • the longitudinal edges of the lid 318 can be bent inwards, ie on the side to be joined to the floor. Areas of the transverse channels 214 may be recessed, so that the bent edges can form those areas which are each arranged between two adjacent transverse channels 214.
  • Fig. 9 shows a representation of the bottom 316, the in Fig. 1 shown capacitor, according to an embodiment of the present invention.
  • the bottom 316 Transverse to the longitudinal direction, the bottom 316 has a plurality of openings 924.
  • the number of openings 924 can correspond to the number of flat tubes of the heat exchanger, with which the manifold is coupled.
  • the ends of the flat tubes may each engage a corresponding one of the openings 924.
  • the floor 316 has at the longitudinal edges of the composite elements with which a firm connection between the bottom 316 and the lid can be created.
  • Fig. 10 shows another illustration of in Fig. 1 shown capacitor.
  • an arrangement of the bottom 316 and the lid 318 is shown, which together form the manifold.
  • FIGS. 11 to 13 show a capacitor, according to another embodiment of the present invention.
  • the manifold may have a domed bottom. All other elements can be determined by the FIGS. 1 to 10 correspond to described elements.
  • Fig. 11 shows a representation of the capacitor with the manifold 100 and the heat exchanger 102nd
  • Fig. 12 shows a further illustration of the condenser with the manifold 100 and the heat exchanger 102. Furthermore, the flat channels 112 of the heat exchanger are shown, of which only one is provided with the reference numeral 112 for clarity.
  • Fig. 13 shows a representation of the bottom 316, the in Fig. 11 shown capacitor, according to an embodiment of the present invention.
  • the bottom 316 Transverse to the longitudinal direction, the bottom 316 has a plurality of openings 924.
  • the number of openings 924 can correspond to the number of flat tubes of the heat exchanger, with which the manifold is coupled.
  • the ends of the flat tubes may each engage a corresponding one of the openings 924.
  • the bottom 316 has a longitudinal channel 1326.
  • the longitudinal channel 1326 together with the longitudinal channel of the lid, may serve to guide the refrigerant within the header.
  • the floor 316 has an outward curvature, ie, in the direction of the heat exchanger.
  • the camber is formed centrally in the bottom 316 and may extend in the longitudinal direction over the entire length of the bottom 316.
  • the floor 316 has at the longitudinal edges of the composite elements with which a firm connection between the bottom 316 and the lid can be created.
  • FIGS. 14 to 17 show a capacitor, according to another embodiment of the present invention.
  • the collecting tube may have an off-center longitudinal channel. All other elements can, apart from the resulting from the arrangement of the longitudinal channel conditions, the basis of the FIGS. 1 to 13 correspond to described elements.
  • Fig. 14 shows a representation of the capacitor with the manifold 100 and the heat exchanger 102.
  • the transverse channels 214 are arranged only on one side of the longitudinal channel.
  • Fig. 15 shows a further illustration of the condenser with the manifold 100, the heat exchanger 102 and the transverse channels 214th
  • Fig. 16 shows a further illustration of the condenser with the manifold 100 and the heat exchanger 102nd
  • Fig. 17 shows a representation of the lid 318, the in Fig. 14 shown capacitor, according to an embodiment of the present invention.
  • the lid 318 on one side of a recess in the form of an outward curvature, which forms the longitudinal channel.
  • the lid 318 has a plurality of transverse channels 214 which open into the longitudinal channel.
  • the transverse channels 214 may be aligned with the openings of the bottom when the lid 318 is connected to the bottom to form the collection tube. In this case, the openings of the bottom can conclude with the transverse channels 214 or extend into the region of the longitudinal channel.
  • FIGS. 18 to 20 show embodiments of the manifold 100 with board on the ground.
  • the solution according to the invention provides a collection tube 100 with a bottom 316 and a cover 318.
  • the bottom 316 can preferably be flat ( FIGS. 1 to 10 ) or arched ( FIGS. 11 to 13 ) be.
  • the bottom 316 serves to receive and connect the flat tubes 112 of the heat exchanger. This can be done by soldering.
  • the lid 318 has a so-called longitudinal channel 320, which extends in the longitudinal direction of the collecting tube 100. In the lid 318 corresponding to the passages 924 in the bottom 316 so-called transverse channels 214 are introduced. In the optimal case, in each case on both sides of the longitudinal channel 320.
  • the transverse channels 214 have the task of creating a free space at the flat tube ends. This is needed to allow an inflow and outflow into / out of the flat tube 112. In addition, the transverse channels 214 serve to compensate for process variations of the insertion depth.
  • the lid 318 itself can be formed from a sheet metal, as in the FIGS. 4 and 5 is shown, or extruded, as in the FIGS. 6 and 7 is shown.
  • the bottom 316 encloses the lid 318. Both parts 316, 318 are joined together by tabs, caulking, toxics or the like.
  • the flow guide and the termination of the headers 100 at the ends is achieved by so-called partitions. These are inserted or inserted into the manifold 100.
  • the transverse channels as in FIG Fig. 8 shown achieved by material doubling the lid 318.
  • the bottom 316 may have transverse channels 214 to the depth or to increase the cross section of the transverse channel 214.
  • the cover 318 may have further holders, noses or the like on which flanges, holders or the like. can be attached.

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

Description

Die vorliegende Erfindung bezieht sich auf ein Sammelrohr für einen Wärmeübertrager sowie auf einen Kondensator.The present invention relates to a manifold for a heat exchanger and to a capacitor.

Die DE 10 2007 016 050 A1 beschreibt einen Wärmeaustauscher, der über Rohre verfügt, die mit einem Sammlertank gekuppelt sind. Der Sammlertank umfasst ein Plattenelement, an das die Enden der Rohre gekuppelt sind, ein mit dem Plattenelement verbundenes Tankelement und ein Zwischenelement, das zwischen dem Tankelement und dem Plattenelement angeordnet ist. Hierbei treten Prinzip bedingte Dopplungen des Materials auf. Dies ist aus Gewichts- und somit Kostengründen sowie aus löttechnischer Sicht unvorteilhaft.The DE 10 2007 016 050 A1 describes a heat exchanger having tubes coupled to a header tank. The header tank includes a plate member to which the ends of the tubes are coupled, a tank member connected to the plate member, and an intermediate member disposed between the tank member and the plate member. In this case, principle-related doublings of the material occur. This is unfavorable for weight and thus cost reasons and from a soldering point of view.

Die US 2006/0162917 A1 betrifft einen Wärmetauscher, insbesondere einen Wärmetauscher für Kohlendioxid, bei dem ein Tank mit einer Anzahl von Kuppeln mit einem Sammler gekoppelt ist und wobei ein Verbindungselement mit einem Verbindungsströmungskanal zwischen dem Sammler und dem Tank angeordnet ist.The US 2006/0162917 A1 relates to a heat exchanger, in particular a heat exchanger for carbon dioxide, in which a tank with a number of domes is coupled to a collector and wherein a connecting element is arranged with a connecting flow channel between the collector and the tank.

Die Sammelrohre von Kondensatoren, die für das Kältemittel R134a hergestellt sind, können zweiteilig sein und aus dem sogenannten Boden sowie einem Deckel bestehen. Insbesondere bei Kondensatoren für einen C02-Kältemittelkreislauf, den sogenannten Gaskühlern, kann die bisherige Bauform aufgrund des höheren Druckniveaus nicht beibehalten werden.The headers of condensers made for the refrigerant R134a may be in two parts and consist of the so-called bottom and a lid. Especially with capacitors for a C02 refrigerant circuit, the so-called gas coolers, the previous design can not be maintained due to the higher pressure levels.

Es ist die Aufgabe der vorliegenden Erfindung, ein verbessertes Sammelrohr für einen Wärmeübertrager sowie einen verbesserten Kondensator zu schaffen.It is the object of the present invention to provide an improved header for a heat exchanger and an improved condenser.

Diese Aufgabe wird durch ein Sammelrohr gemäß Anspruch 1 sowie einen Kondensator gemäß Anspruch 13 gelöst.This object is achieved by a manifold according to claim 1 and a capacitor according to claim 13.

Der vorliegenden Erfindung liegt die Erkenntnis zugrunde, dass ein zweiteiliges Sammelrohr Gewicht und somit Kosten sparen kann. Durch die Anordnung spezieller Kanäle im Inneren des Sammelrohrs kann vermieden werden, dass die Hauptströmungskanäle teilweise durch Flachrohre des Wärmeübertragers versperrt werden und somit einen Druckverlust auf der Kältemittelseite erzeugen.The present invention is based on the finding that a two-part manifold can save weight and thus costs. By arranging special channels in the interior of the collecting tube, it can be avoided that the main flow channels are partially blocked by flat tubes of the heat exchanger and thus produce a pressure drop on the refrigerant side.

Daher lässt sich der erfindungsgemäße Ansatz u.a. vorteilhaft bei Wärmeübertragern, wie beispielsweise Kondensatoren beispielsweise für einen CO2-Kältemittelkreislauf, den sogenannten Gaskühlern, einsetzen, da die erfindungsgemäße Bauform für die dabei auftretenden höheren Druckniveaus geeignet ist.Therefore, the approach of the invention u.a. advantageous in heat exchangers, such as capacitors, for example, for a CO2 refrigerant circuit, the so-called gas coolers use, since the design of the invention for the occurring higher pressure levels is suitable.

Vorteilhafterweise ermöglicht der erfindungsgemäße Ansatz eine Kosteneinsparung, eine Gewichtsreduzierung, eine Verringerung von Druckverlusten und eine Erhöhung der Prozesssicherheit.Advantageously, the inventive approach allows cost savings, a reduction in weight, a reduction of pressure losses and an increase in process reliability.

Durch die vorliegende Erfindung ist es möglich, ein im Vergleich zum Stand der Technik, einfach herzustellendes, kostengünstiges und hochdruckfestes Sammelrohr für Wärmeübertrager herzustellen. Das erfindungsgemäße Design zeichnet sich durch einen geringen kältemittelseitigen Druckverlust aus.By means of the present invention, it is possible to produce a cost-effective and high-pressure-resistant collecting tube for heat exchangers which is simple to produce compared with the prior art. The design according to the invention is characterized by a low pressure loss on the refrigerant side.

Die vorliegende Erfindung schafft ein zweiteiliges Sammelrohr für einen Wärmeübertrager, der eine Mehrzahl von in einer Längsrichtung angeordneten Flachrohren aufweist, mit folgenden Merkmalen: einem Boden, der eine Mehrzahl von in einer Querrichtung angeordneten Öffnungen zum Ankoppeln des Sammelrohrs an die Mehrzahl von Flachrohren aufweist; und einem Deckel, der dem Boden gegenüberliegend angeordnet ist, wobei der Deckel aus einem Blech ausgeformt ist oder extrudiert ist, wobei der Boden mit dem Deckel, zumindest an sich in der Längsrichtung erstreckenden Rändern, fluiddicht verbunden ist, wobei der Deckel auf einer dem Boden zugewandten Seite eine Mehrzahl von Querkanälen, die der Mehrzahl von Öffnungen gegenüberliegend angeordnet sind, und nur einen sich in der Längsrichtung erstreckenden Längskanal aufweist.The present invention provides a two-part manifold for a heat exchanger having a plurality of flat tubes arranged in a longitudinal direction, comprising: a bottom having a plurality of transversely disposed openings for coupling the manifold to the plurality of flat tubes; and a lid disposed opposite the bottom, the lid being formed or extruded from a sheet, the bottom being fluid-tightly connected to the lid, at least longitudinally extending edges thereof, the lid resting on one of the bottom facing side a plurality of transverse channels, which are arranged opposite to the plurality of openings, and having only one longitudinally extending longitudinal channel.

Bei dem Wärmeübertrager kann es sich um einen Gaskühler für C02 als Kältemittel handeln. Alternativ kann ein anderes geeignetes gasförmiges oder flüssiges Fluid als Kältemittel oder Kühlmedium eingesetzt werden. Die Flachrohre können ausgebildet sein, um das Fluid durch den Wärmeübertrager zu führen. Der Boden stellt ein Kontaktelement zwischen dem Wärmeübertrager und dem Sammelrohr dar. Der Boden kann fest mit einer Längsseite des Wärmeübertragers verbunden sein. Dabei kann der Boden als separates Bauteil oder als Teil des Wärmeübertragers ausgebildet sein. Die Öffnungen des Bodens können einen an die Flachrohre angepassten Querschnitt aufweisen. Enden der Flachrohre können in die Öffnungen eingeführt sein. Außenseiten der Flachrohre können fluiddicht gegenüber dem Boden abgeschlossen werden. Somit ermöglichen die Öffnungen ein Einströmen des Kältemittels aus den Flachrohren in einen Innenraum des Sammelrohrs und umgekehrt. Der Deckel kann so mit dem Boden verbunden sein, dass zwischen dem Deckel und dem Boden ein Hohlraum ausgebildet wird. Der Hohlraum kann durch den Längskanal in dem Deckel ausgeformt sein. Der Längskanal kann als Aussparung oder als Ausbiegung in dem Deckel ausgeformt sein. Der Längskanal kann sich über eine gesamte Länge des Deckels erstrecken. Die Querkanäle können den Hohlraum zwischen dem Deckel und dem Boden vergrößern und jeweils mit dem Längskanal verbunden sein. Die Querkanäle können als Aussparung oder als Ausbiegung in dem Deckel ausgeformt sein. Die Querkanäle können rechtwinklig zu dem Längskanal ausgerichtet sein. Die Querkanäle sind den Öffnungen des Bodens und somit den Enden der Flachrohre gegenüberliegend angeordnet. Ein Querschnitt der Querkanäle kann in seiner Form an eine Form eines Querschnitts der Enden der Flachrohre angepasst sein. Insbesondere kann der Querschnitt der Querkanäle größer als der Querschnitt der Enden der Flachrohre gewählt sein.The heat exchanger can be a gas cooler for CO 2 as a refrigerant. Alternatively, another suitable gaseous or liquid fluid may be used as the refrigerant or cooling medium. The flat tubes may be configured to guide the fluid through the heat exchanger. The floor is a contact element between the heat exchanger and the manifold. The floor may be fixedly connected to a longitudinal side of the heat exchanger. In this case, the floor may be formed as a separate component or as part of the heat exchanger. The openings of the bottom can have a cross-section adapted to the flat tubes. Ends of the flat tubes may be inserted into the openings. Outer sides of the flat tubes can be sealed off from the bottom in a fluid-tight manner. Thus, the openings allow an inflow of the refrigerant from the flat tubes in an interior of the manifold and vice versa. The lid may be connected to the floor so that a cavity is formed between the lid and the floor. The cavity may be formed by the longitudinal channel in the lid. The longitudinal channel may be formed as a recess or as a deflection in the lid. The longitudinal channel may extend over an entire length of the lid. The transverse channels may increase the cavity between the lid and the bottom and be connected to the longitudinal channel, respectively. The transverse channels may be formed as a recess or as a deflection in the lid. The transverse channels can be aligned at right angles to the longitudinal channel. The transverse channels are arranged opposite the openings of the bottom and thus opposite the ends of the flat tubes. A cross section of the transverse channels may be adapted in shape to a shape of a cross section of the ends of the flat tubes. Especially the cross-section of the transverse channels may be greater than the cross-section of the ends of the flat tubes.

Jede der Mehrzahl von Öffnungen des Bodens kann ausgebildet sein, um jeweils ein Ende eines der Mehrzahl von Flachrohren aufzunehmen und jeder der Mehrzahl von Querkanälen kann ausgebildet sein, um jeweils einen Freiraum zwischen dem Deckel und einem jeweiligen Ende eines der Mehrzahl von Flachrohren auszubilden. Somit können jedem Flachrohr genau eine Öffnung und genau ein Querkanal zugeordnet sein. Der Freiraum ermöglicht einen Ausgleich von Prozessstreuungen bei der Herstellung des Sammelrohrs bzw. des Wärmeübertragers.Each of the plurality of openings of the bottom may be formed to receive one end of each of the plurality of flat tubes, and each of the plurality of transverse channels may be formed to respectively form a clearance between the lid and a respective end of one of the plurality of flat tubes. Thus, each flat tube can be assigned exactly one opening and exactly one transverse channel. The free space allows a compensation of process variations in the production of the manifold or the heat exchanger.

Auch kann jeder der Mehrzahl von Querkanälen ausgebildet sein, um eine Fluidströmung zwischen dem Längskanal und einem Inneren der Mehrzahl von Flachrohren zu ermöglichen. Somit wird ein möglichst reibungsloser Austausch des Kältemittels zwischen den Flachrohren und dem Inneren des Sammelrohrs ermöglicht.Also, each of the plurality of cross channels may be formed to allow fluid flow between the longitudinal channel and an interior of the plurality of flat tubes. Thus, the smoothest possible replacement of the refrigerant between the flat tubes and the interior of the manifold is possible.

Gemäß einer Ausführungsform kann die Mehrzahl von Querkanälen beidseitig des Längskanals angeordnet sein. Somit kann der Längskanal beispielsweise mittig zu den Flachrohren angeordnet sein. Alternativ kann die Mehrzahl von Querkanälen einseitig des Längskanals angeordnet sein.According to one embodiment, the plurality of transverse channels can be arranged on both sides of the longitudinal channel. Thus, the longitudinal channel may be arranged, for example, centrally to the flat tubes. Alternatively, the plurality of transverse channels may be arranged on one side of the longitudinal channel.

Ferner kann der Boden eine Mehrzahl weiterer Querkanäle aufweisen, die den Querkanälen des Deckels gegenüberliegend angeordnet sein können. Somit kann der Querschnitt oder die Tiefe der im Deckel angeordneten Querkanäle vergrößert werden.Further, the bottom may have a plurality of further transverse channels, which may be arranged opposite the transverse channels of the lid. Thus, the cross-section or the depth of the transverse channels arranged in the cover can be increased.

Auch kann der Boden einen weiteren Längskanal aufweisen, der dem Längskanal des Deckels gegenüberliegend angeordnet sein kann. Somit kann der Querschnitt oder die Tiefe des im Deckel angeordneten Längskanals vergrößert werden.Also, the bottom may have a further longitudinal channel, which may be arranged opposite the longitudinal channel of the lid. Thus, the cross section or the depth of the longitudinal channel arranged in the lid can be increased.

Gemäß einer Ausführungsform kann der Boden zum Ausbilden des weiteren Längskanals eine Wölbung aufweisen. Die Wölbung kann von einer Innenseite des Sammelrohres in Richtung des Wärmeübertragers ausgebildet sein, wenn der Boden mit dem Wärmeübertrager verbunden ist.According to one embodiment, the bottom may have a curvature for forming the further longitudinal channel. The curvature may be formed from an inner side of the collecting tube in the direction of the heat exchanger, when the base is connected to the heat exchanger.

Alternativ kann ein, dem Längskanal gegenüberliegender Flächenabschnitt des Bodens, eben ausgeführt sein. Ein solcher Boden kann kostengünstig hergestellt werden.Alternatively, one, the longitudinal channel opposite surface portion of the floor, be made flat. Such a floor can be produced inexpensively.

Der Deckel ist aus einem Blech ausgeformt, oder ist extrudiert. Somit kann der Deckel mittels bekannter Herstellungsverfahren gefertigt werden. Dabei können die Querkanäle durch Materialdopplungen des Deckels ausgeformt sein.The lid is formed from a sheet, or is extruded. Thus, the lid can be manufactured by known manufacturing methods. The transverse channels can be formed by material doubling of the lid.

Der Boden kann, an sich in der Längsrichtung erstreckenden Rändern, Verbundeinrichtungen aufweisen, die ausgebildet sind, um gegenüberliegende Ränder des Deckels zu umschließen. Die Verbundeinrichtungen können Laschen, Verstemmungen oder Toxen umfassen und eine Verbindung zwischen Boden und Deckel schaffen, die geeignet ist, um ein Austreten eines in dem Sammelrohr befindlichen Fluids zu verhindern.The floor may have, at longitudinally extending edges, composites configured to enclose opposite edges of the cover. The composite devices may include tabs, caulkings or toxics and provide a bottom to top connection suitable to prevent leakage of fluid in the header.

Ferner können der Boden und der Deckel ausgebildet sein, um zumindest an einem quer zur Längsrichtung verlaufenden Ende, eine Trennwand aufzunehmen. Somit kann die Trennwand in das Sammelrohr eingesteckt oder eingeschoben werden. Die Trennwand kann ausgebildet sein, um einen Abschluss des Sammelrohrs zu schaffen. Die Trennwand kann auch zur Strömungsführung eingesetzt werden.Further, the bottom and the cover may be formed to receive a partition at least at a transversely to the longitudinal end. Thus, the partition can be inserted or inserted into the manifold. The partition may be configured to provide termination of the manifold. The partition can also be used for flow guidance.

Die vorliegende Erfindung schafft ferner einen Kondensator, mit folgenden Merkmalen: einen Wärmeübertrager, der eine Mehrzahl von in einer Längsrichtung angeordneten Flachrohren aufweist; und ein erfindungsgemäßes Sammelrohr, das mit dem Wärmeübertrager verbunden ist.The present invention further provides a condenser, comprising: a heat exchanger having a plurality of in a longitudinal direction arranged flat tubes; and a collecting pipe according to the invention, which is connected to the heat exchanger.

Ein solcher Kondensator kann beispielsweise als ein Gaskühler für einen CO2-Kältemittelkreislauf eingesetzt werden.Such a condenser can be used, for example, as a gas cooler for a CO2 refrigerant circuit.

Bevorzugte Ausführungsbeispiele der vorliegenden Erfindung werden nachfolgend Bezug nehmend auf die beiliegenden Zeichnungen näher erläutert. Es zeigen:

Figuren 1 bis 10
Darstellungen von Kondensatoransichten, gemäß einem ersten Ausführungsbeispiel der vorliegenden Erfindung;
Figuren 11 bis 13
Darstellungen von Kondensatoransichten, gemäß einem weiteren Ausführungsbeispiel der vorliegenden Erfindung;
Figuren 14 bis 17
Darstellungen von Kondensatoransichten, gemäß einem weiteren Ausführungsbeispiel der vorliegenden Erfindung; und
Figuren 18 bis 20
Darstellungen von Böden, gemäß weiteren Ausführungsbeispielen der vorliegenden Erfindung.
Preferred embodiments of the present invention will be explained in more detail below with reference to the accompanying drawings. Show it:
FIGS. 1 to 10
Illustrations of capacitor views, according to a first embodiment of the present invention;
FIGS. 11 to 13
Illustrations of capacitor views, according to another embodiment of the present invention;
FIGS. 14 to 17
Illustrations of capacitor views, according to another embodiment of the present invention; and
FIGS. 18 to 20
Illustrations of soils according to further embodiments of the present invention.

In der nachfolgenden Beschreibung der bevorzugten Ausführungsbeispiele der vorliegenden Erfindung werden für die in den verschiedenen Zeichnungen dargestellten und ähnlich wirkenden Elemente gleiche oder ähnliche Bezugszeichen verwendet, wobei eine wiederholte Beschreibung dieser Elemente weggelassen wird.In the following description of the preferred embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various drawings and similar, and a repeated description of these elements will be omitted.

Fig. 1 zeigt einen Kondensator mit einem Sammelrohr 100 und einem Wärmeübertrager 102, gemäß einem Ausführungsbeispiel der vorliegenden Erfindung. Der Wärmeübertrager 102 weist eine Mehrzahl von Flachrohren 112 auf, die mit dem Sammelrohr 100 gekoppelt sind. Der Übersichtlichkeit halber ist nur eines der gezeigten Flachrohre mit dem Bezugszeichen 112 versehen. Das Sammelrohr 100 ist an einem Ende des Wärmeübertragers 102 mit diesem verbunden. Fig. 1 shows a condenser with a manifold 100 and a heat exchanger 102, according to an embodiment of the present invention. The heat exchanger 102 has a plurality of flat tubes 112, which with coupled to the manifold 100. For the sake of clarity, only one of the flat tubes shown is provided with the reference numeral 112. The manifold 100 is connected at one end of the heat exchanger 102 with this.

Die Flachrohre 112 sind parallel zueinander ausgerichtet und in Bezug auf eine Längsrichtung nebeneinander angeordnet. Das Sammelrohr 100 ist in der Längsrichtung ausgerichtet, so dass die Flachrohre 112 orthogonal zu dem Sammelrohr 100 ausgerichtet sein können. Zwischen den Flachrohren 112 können Kühlelemente, beispielsweise Kühlrippen angeordnet sein. Die Flachrohre 112 sind ausgebildet, um ein Kältemittel, beispielsweise ein Fluid zu führen. Auf der dem Sammelrohr 100 zugewandten Seite, sind jeweilige Enden der Flachrohre 112 mit korrespondierenden Öffnungen des Sammelrohrs 100 verbunden. Auf diese Weise kann das Kältemittel aus den Flachrohren 112 in das Sammelrohr 100, und umgekehrt strömen.The flat tubes 112 are aligned parallel to each other and arranged side by side with respect to a longitudinal direction. The manifold 100 is aligned in the longitudinal direction so that the flat tubes 112 may be aligned orthogonal to the manifold 100. Between the flat tubes 112 cooling elements, such as cooling fins may be arranged. The flat tubes 112 are designed to guide a refrigerant, for example a fluid. On the side facing the manifold 100, respective ends of the flat tubes 112 are connected to corresponding openings of the manifold 100. In this way, the refrigerant from the flat tubes 112 can flow into the manifold 100, and vice versa.

Fig. 2 zeigt eine Querschnittsdarstellung durch den in Fig. 1 gezeigten Kondensator mit dem Sammelrohr 100 und dem Wärmeübertrager 102. Gezeigt sind eine Mehrzahl von Querkanälen 214, die auf einer, den Flachrohren gegenüberliegenden Innenseite des Sammelrohrs 100 angeordnet sind. Der Übersichtlichkeit halber ist nur einer der gezeigten Querkanäle mit dem Bezugszeichen 214 versehen. Fig. 2 shows a cross-sectional view through the in Fig. 1 Shown are a plurality of transverse channels 214, which are arranged on a, the flat tubes opposite the inside of the collecting tube 100. For the sake of clarity, only one of the transverse channels shown is provided with the reference numeral 214.

Fig. 3 zeigt eine Seitenansicht des in Fig. 1 gezeigten Kondensators mit dem Sammelrohr 100 und dem Wärmeübertrager 102. Das Sammelrohr 100 weist einen Boden 316 und einen Deckel 318 auf. Der Boden 316 und der Deckel 318 sind an ihren in der Längsrichtung verlaufenden Rändern so miteinander verbunden, dass das sich in dem Sammelrohr 100 befindliche Kältemittel nicht entweichen kann. Der Boden 316 und der Deckel 318 sind so ausgebildet, dass zwischen ihnen ein Hohlraum zum Führen des Kältemittels besteht. Ferner weist der Deckel 318 einen Längskanal 320 zum Führen des Kältemittels auf. Gemäß diesem Ausführungsbeispiel weist der Deckel 318 dazu eine nach außen gerichtete Wölbung auf. Die Wölbung kann mittig in dem Deckel 318 ausgebildet sein und in der Längsrichtung über die gesamte Länge des Deckels 318 verlaufen. Der Boden 316 kann fest mit einem Grundkörper des Wärmeübertragers 102 verbunden sein oder Teil desselben sein. Der Boden 316 weist auf einer dem Wärmeübertrager zugewandten Seite Öffnungen zum Aufnehmen von Endstücken der im Wärmeübertrager angeordneten Flachrohre auf. Über die Öffnungen kann das Kältemittel zwischen den Flachrohren und dem zwischen dem Boden 316 und dem Deckel 318 angeordneten Innenraum des Sammelrohrs 100 ausgetauscht werden. Fig. 3 shows a side view of the in Fig. 1 shown condenser with the manifold 100 and the heat exchanger 102. The manifold 100 has a bottom 316 and a lid 318 on. The bottom 316 and the lid 318 are joined together at their longitudinal edges so that the refrigerant in the header 100 can not escape. The bottom 316 and the lid 318 are formed so that there is a cavity for guiding the refrigerant therebetween. Further, the lid 318 has a longitudinal channel 320 for guiding the refrigerant. According to this embodiment, the lid 318 has one outward curvature on. The curvature may be formed centrally in the lid 318 and extend in the longitudinal direction over the entire length of the lid 318. The floor 316 may be fixedly connected to or part of a body of the heat exchanger 102. The bottom 316 has openings for receiving end pieces of the flat tubes arranged in the heat exchanger on a side facing the heat exchanger. Via the openings, the refrigerant between the flat tubes and between the bottom 316 and the lid 318 arranged interior of the manifold 100 can be replaced.

Fig. 4 zeigt eine Darstellung des Deckels 318, des in Fig. 1 gezeigten Kondensators, gemäß einem Ausführungsbeispiel der vorliegenden Erfindung. Quer zur Längsrichtung und somit quer zu dem Längskanal 320 weist der Deckel 318 eine Mehrzahl von Querkanälen 214 auf. Die Anzahl der Querkanäle kann dabei der Anzahl der Flachrohre des Wärmeübertragers entsprechen, mit dem das Sammelrohr gekoppelt wird. Wenn der Deckel 318 mit dem Boden verbunden ist, sind die Querkanäle 214 gegenüber den Öffnungen des Bodens und somit gegenüber den Flachrohren ausgerichtet. Auf diese Weise kann das Kältemittel über die Querkanäle 214 in die Flachrohre eintreten bzw. aus den Flachrohren über die Querkanäle 214 austreten. Die Querkanäle 214 können jeweils über die gesamte Breite des Deckels 318 verlaufen. Die Querkanäle 214 bilden Vertiefungen in dem Deckel aus und können jeweils in der Mitte durch den Längskanal 320 unterbrochen sein, so dass beidseitig des Längskanals 320 jeweils gegenüberliegende Teilabschnitte der Querkanäle 214 verlaufen können. Der Längskanal 320 ist so mit den Querkanälen 314 verbunden, das das Kältemittel zwischen Längskanal 320 und Querkanälen 314 hin und her strömen kann. Fig. 4 shows a representation of the lid 318, the in Fig. 1 shown capacitor, according to an embodiment of the present invention. Transverse to the longitudinal direction and thus transversely to the longitudinal channel 320, the lid 318 has a plurality of transverse channels 214. The number of transverse channels can correspond to the number of flat tubes of the heat exchanger, with which the manifold is coupled. When the lid 318 is connected to the floor, the transverse channels 214 are aligned with the openings of the floor and thus with the flat tubes. In this way, the refrigerant can enter via the transverse channels 214 in the flat tubes or emerge from the flat tubes via the transverse channels 214. The transverse channels 214 can each extend over the entire width of the lid 318. The transverse channels 214 form recesses in the cover and can each be interrupted in the middle by the longitudinal channel 320, so that mutually opposite sections of the transverse channels 214 can extend on both sides of the longitudinal channel 320. The longitudinal channel 320 is connected to the transverse channels 314 so that the refrigerant between the longitudinal channel 320 and transverse channels 314 can flow back and forth.

Fig. 5 zeigt eine Rückansicht des in Fig. 4 gezeigten Deckels 318 mit dem Längskanal 320 und den Querkanälen 214. Der in den Figuren 4 und 5 gezeigte Deckel kann aus einem Blech umgeformt sein. Fig. 5 shows a rear view of the in Fig. 4 shown lid 318 with the longitudinal channel 320 and the transverse channels 214. The in the FIGS. 4 and 5 shown lid can be formed from a sheet metal.

Fig. 6 zeigt eine Darstellung des Deckels 318, des in Fig. 1 gezeigten Kondensators, gemäß einem weiteren Ausführungsbeispiel der vorliegenden Erfindung. Der gezeigte Deckel 318 ist gegenüber dem in Fig. 4 gezeigten Ausführungsbeispiel mittels eines anderen Herstellungsprozesses hergestellt worden. Fig. 6 shows a representation of the lid 318, the in Fig. 1 shown capacitor, according to another embodiment of the present invention. The lid 318 shown is opposite to in FIG Fig. 4 embodiment shown by means of another manufacturing process.

Fig. 7 zeigt eine Darstellung des Deckels 318, des in Fig. 1 gezeigten Kondensators, gemäß einem weiteren Ausführungsbeispiel der vorliegenden Erfindung. Der gezeigte Deckel 318 ist gegenüber dem in Fig. 4 gezeigten Ausführungsbeispiel mittels eines anderen Herstellungsprozesses hergestellt worden. Die in den Figuren 6 und 7 gezeigten Deckel können extrudiert sein. Fig. 7 shows a representation of the lid 318, the in Fig. 1 shown capacitor, according to another embodiment of the present invention. The lid 318 shown is opposite to in FIG Fig. 4 embodiment shown by means of another manufacturing process. The in the FIGS. 6 and 7 Lids shown can be extruded.

Fig. 8 zeigt eine Darstellung des Deckels 318, des in Fig. 1 gezeigten Kondensators, gemäß einem weiteren Ausführungsbeispiel der vorliegenden Erfindung. Der gezeigte Deckel 318 ist gegenüber dem in Fig. 4 gezeigten Ausführungsbeispiel mittels eines anderen Herstellungsprozesses hergestellt worden. Gemäß diesem Ausführungsbeispiel können die Querkanäle 214 durch Materialdopplung ausgebildet sein. Dazu können die in Längsrichtung verlaufenden Ränder des Deckels 318 nach innen, d.h. auf die mit dem Boden zu verbindende Seite, umgebogen werden. Bereiche der Querkanäle 214 können dabei ausgespart sein, so dass die umgebogenen Ränder diejenigen Bereiche ausbilden können, die jeweils zwischen zwei benachbarten Querkanälen 214 angeordnet sind. Fig. 8 shows a representation of the lid 318, the in Fig. 1 shown capacitor, according to another embodiment of the present invention. The lid 318 shown is opposite to in FIG Fig. 4 embodiment shown by means of another manufacturing process. According to this embodiment, the transverse channels 214 may be formed by material doubling. For this purpose, the longitudinal edges of the lid 318 can be bent inwards, ie on the side to be joined to the floor. Areas of the transverse channels 214 may be recessed, so that the bent edges can form those areas which are each arranged between two adjacent transverse channels 214.

Fig. 9 zeigt eine Darstellung des Bodens 316, des in Fig. 1 gezeigten Kondensators, gemäß einem Ausführungsbeispiel der vorliegenden Erfindung. Quer zur Längsrichtung weist der Boden 316 eine Mehrzahl von Öffnungen 924 auf. Die Anzahl der Öffnungen 924 kann dabei der Anzahl der Flachrohre des Wärmeübertragers entsprechen, mit dem das Sammelrohr gekoppelt wird. Wenn der Boden 316 mit dem Wärmeübertrager gekoppelt ist, können die Enden der Flachrohre jeweils in eine entsprechende der Öffnungen 924 eingreifen. Der Boden 316 weist an den in der Längsrichtung verlaufenden Rändern Verbundelemente auf, mit denen eine feste Verbindung zwischen dem Boden 316 und dem Deckel geschaffen werden kann. Fig. 9 shows a representation of the bottom 316, the in Fig. 1 shown capacitor, according to an embodiment of the present invention. Transverse to the longitudinal direction, the bottom 316 has a plurality of openings 924. The number of openings 924 can correspond to the number of flat tubes of the heat exchanger, with which the manifold is coupled. When the bottom 316 is coupled to the heat exchanger, the ends of the flat tubes may each engage a corresponding one of the openings 924. The floor 316 has at the longitudinal edges of the composite elements with which a firm connection between the bottom 316 and the lid can be created.

Fig. 10 zeigt eine weitere Darstellung des in Fig. 1 gezeigten Kondensators. Insbesondere ist eine Anordnung des Bodens 316 und des Deckels 318 gezeigt, die zusammen das Sammelrohr ausbilden. Fig. 10 shows another illustration of in Fig. 1 shown capacitor. In particular, an arrangement of the bottom 316 and the lid 318 is shown, which together form the manifold.

Die Figuren 11 bis 13 zeigen einen Kondensator, gemäß einem weiteren Ausführungsbeispiel der vorliegenden Erfindung. Gemäß diesem Ausführungsbeispiel kann das Sammelrohr einen gewölbten Boden aufweisen. Alle übrigen Elemente können den anhand der Figuren 1 bis 10 beschriebenen Elementen entsprechen.The FIGS. 11 to 13 show a capacitor, according to another embodiment of the present invention. According to this embodiment, the manifold may have a domed bottom. All other elements can be determined by the FIGS. 1 to 10 correspond to described elements.

Fig. 11 zeigt eine Darstellung des Kondensators mit dem Sammelrohr 100 und dem Wärmeübertrager 102. Fig. 11 shows a representation of the capacitor with the manifold 100 and the heat exchanger 102nd

Fig. 12 zeigt eine weitere Darstellung des Kondensators mit dem Sammelrohr 100 und dem Wärmeübertrager 102. Ferner sind die Flachkanäle 112 des Wärmeübertragers gezeigt, von denen der Übersichtlichkeit halber nur einer mit dem Bezugszeichen 112 versehen ist. Fig. 12 shows a further illustration of the condenser with the manifold 100 and the heat exchanger 102. Furthermore, the flat channels 112 of the heat exchanger are shown, of which only one is provided with the reference numeral 112 for clarity.

Fig. 13 zeigt eine Darstellung des Bodens 316, des in Fig. 11 gezeigten Kondensators, gemäß einem Ausführungsbeispiel der vorliegenden Erfindung. Quer zur Längsrichtung weist der Boden 316 eine Mehrzahl von Öffnungen 924 auf. Die Anzahl der Öffnungen 924 kann dabei der Anzahl der Flachrohre des Wärmeübertragers entsprechen, mit dem das Sammelrohr gekoppelt wird. Wenn der Boden 316 mit dem Wärmeübertrager gekoppelt ist, können die Enden der Flachrohre jeweils in eine entsprechende der Öffnungen 924 eingreifen. Ferner weist der Boden 316 einen Längskanal 1326 auf. Der Längskanal 1326 kann zusammen mit dem Längskanal des Deckels zum Führen des Kältemittels innerhalb des Sammelrohrs dienen. Gemäß diesem Ausführungsbeispiel weist der Boden 316 dazu eine nach außen, d.h. in Richtung des Wärmeübertragers, gerichtete Wölbung auf. Die Wölbung ist mittig in dem Boden 316 ausgebildet und kann in der Längsrichtung über die gesamte Länge des Bodens 316 verlaufen. Der Boden 316 weist an den in der Längsrichtung verlaufenden Rändern Verbundelemente auf, mit denen eine feste Verbindung zwischen dem Boden 316 und dem Deckel geschaffen werden kann. Fig. 13 shows a representation of the bottom 316, the in Fig. 11 shown capacitor, according to an embodiment of the present invention. Transverse to the longitudinal direction, the bottom 316 has a plurality of openings 924. The number of openings 924 can correspond to the number of flat tubes of the heat exchanger, with which the manifold is coupled. When the bottom 316 is coupled to the heat exchanger, the ends of the flat tubes may each engage a corresponding one of the openings 924. Further, the bottom 316 has a longitudinal channel 1326. The longitudinal channel 1326, together with the longitudinal channel of the lid, may serve to guide the refrigerant within the header. According to this exemplary embodiment, the floor 316 has an outward curvature, ie, in the direction of the heat exchanger. The camber is formed centrally in the bottom 316 and may extend in the longitudinal direction over the entire length of the bottom 316. The floor 316 has at the longitudinal edges of the composite elements with which a firm connection between the bottom 316 and the lid can be created.

Die Figuren 14 bis 17 zeigen einen Kondensator, gemäß einem weiteren Ausführungsbeispiel der vorliegenden Erfindung. Gemäß diesem Ausführungsbeispiel kann das Sammelrohr einen außermittig angeordneten Längskanal aufweisen. Alle übrigen Elemente können, abgesehen von den aus der Anordnung des Längskanals resultierenden Gegebenheiten, den anhand der Figuren 1 bis 13 beschriebenen Elementen entsprechen.The FIGS. 14 to 17 show a capacitor, according to another embodiment of the present invention. According to this embodiment, the collecting tube may have an off-center longitudinal channel. All other elements can, apart from the resulting from the arrangement of the longitudinal channel conditions, the basis of the FIGS. 1 to 13 correspond to described elements.

Fig. 14 zeigt eine Darstellung des Kondensators mit dem Sammelrohr 100 und dem Wärmeübertrager 102. Gemäß diesem Ausführungsbeispiel sind die Querkanäle 214 lediglich auf einer Seite des Längskanals angeordnet. Fig. 14 shows a representation of the capacitor with the manifold 100 and the heat exchanger 102. According to this embodiment, the transverse channels 214 are arranged only on one side of the longitudinal channel.

Fig. 15 zeigt eine weitere Darstellung des Kondensators mit dem Sammelrohr 100, dem Wärmeübertrager 102 und den Querkanälen 214. Fig. 15 shows a further illustration of the condenser with the manifold 100, the heat exchanger 102 and the transverse channels 214th

Fig. 16 zeigt eine weitere Darstellung des Kondensators mit dem Sammelrohr 100 und dem Wärmeübertrager 102. Fig. 16 shows a further illustration of the condenser with the manifold 100 and the heat exchanger 102nd

Fig. 17 zeigt eine Darstellung des Deckels 318, des in Fig. 14 gezeigten Kondensators, gemäß einem Ausführungsbeispiel der vorliegenden Erfindung. Entlang der Längsrichtung weist der Deckel 318 an einer Seite eine Vertiefung in Form einer nach außen gerichteten Wölbung auf, die den Längskanal ausformt. Quer zur Längsrichtung weist der Deckel 318 eine Mehrzahl von Querkanälen 214 auf, die in den Längskanal münden. Die Querkanäle 214 können gegenüber den Öffnungen des Bodens ausgerichtet sein, wenn der Deckel 318 mit dem Boden verbunden ist, um das Sammelrohr zu bilden. Dabei können die Öffnungen des Bodens mit den Querkanälen 214 abschließen oder in den Bereich des Längskanals hineinreichen. Fig. 17 shows a representation of the lid 318, the in Fig. 14 shown capacitor, according to an embodiment of the present invention. Along the longitudinal direction, the lid 318 on one side of a recess in the form of an outward curvature, which forms the longitudinal channel. Transverse to the longitudinal direction, the lid 318 has a plurality of transverse channels 214 which open into the longitudinal channel. The transverse channels 214 may be aligned with the openings of the bottom when the lid 318 is connected to the bottom to form the collection tube. In this case, the openings of the bottom can conclude with the transverse channels 214 or extend into the region of the longitudinal channel.

Die Figuren 18 bis 20 zeigen Ausführungsbeispiele des Sammelrohrs 100 mit Bord am Boden.The FIGS. 18 to 20 show embodiments of the manifold 100 with board on the ground.

Wie in den Figuren 1 bis 3 gezeigt, sieht die erfindungsgemäße Lösung ein Sammelrohr 100 mit einem Boden 316 und einem Deckel 318 vor. Wie in Fig. 9 gezeigt kann der Boden 316 hierbei vorzugsweise eben (Figuren 1 bis 10) bzw. gewölbt (Figuren 11 bis 13) sein. Der Boden 316 dient dazu, die Flachrohre 112 des Wärmeübertragers aufzunehmen und zu verbinden. Dies kann durch verlöten erfolgen. Der Deckel 318 weist einen so genannten Längskanal 320 auf, der sich in Längsrichtung des Sammelrohres 100 erstreckt. Im Deckel 318 sind korrespondierend zu den Durchzügen 924 im Boden 316 so genannte Querkanäle 214 eingebracht. Im optimalen Fall jeweils beidseitig des Längskanals 320. Allerdings ist auch eine einseitige Einbindung vorstellbar, wie es in den Figuren 14 bis 17 gezeigt ist. Die Querkanäle 214 haben die Aufgabe, einen Freiraum an den Flachrohrenden zu schaffen. Dieser wird benötigt um eine Ein- und Ausströmung in/aus dem Flachrohr 112 zu ermöglichen. Zusätzlich dienen die Querkanäle 214 dazu, Prozessstreuungen der Einschubtiefe auszugleichen.As in the FIGS. 1 to 3 1, the solution according to the invention provides a collection tube 100 with a bottom 316 and a cover 318. As in Fig. 9 In this case, the bottom 316 can preferably be flat ( FIGS. 1 to 10 ) or arched ( FIGS. 11 to 13 ) be. The bottom 316 serves to receive and connect the flat tubes 112 of the heat exchanger. This can be done by soldering. The lid 318 has a so-called longitudinal channel 320, which extends in the longitudinal direction of the collecting tube 100. In the lid 318 corresponding to the passages 924 in the bottom 316 so-called transverse channels 214 are introduced. In the optimal case, in each case on both sides of the longitudinal channel 320. However, a unilateral involvement is conceivable, as in the FIGS. 14 to 17 is shown. The transverse channels 214 have the task of creating a free space at the flat tube ends. This is needed to allow an inflow and outflow into / out of the flat tube 112. In addition, the transverse channels 214 serve to compensate for process variations of the insertion depth.

Der Deckel 318 selbst, kann aus einem Blech umgeformt sein, wie es in den Figuren 4 und 5 gezeigt ist, bzw. auch extrudiert werden, wie es in den Figuren 6 und 7 gezeigt ist.The lid 318 itself, can be formed from a sheet metal, as in the FIGS. 4 and 5 is shown, or extruded, as in the FIGS. 6 and 7 is shown.

Der Boden 316 umschließt den Deckel 318. Beide Teile 316, 318 werden durch Laschen, Verstemmungen, Toxen oder ähnlichem miteinander verbunden.The bottom 316 encloses the lid 318. Both parts 316, 318 are joined together by tabs, caulking, toxics or the like.

Die Strömungsführung und der Abschluss der Sammelrohre 100 an den Enden wird durch so genannte Trennwände erreicht. Diese sind in das Sammelrohr 100 eingeschoben bzw. eingesteckt.The flow guide and the termination of the headers 100 at the ends is achieved by so-called partitions. These are inserted or inserted into the manifold 100.

Gemäß einem alternativen Ausführungsbeispiel können die Querkanäle, wie in Fig. 8 gezeigt, durch Materialdopplungen des Deckels 318 erreicht werden. Ggf. kann zusätzlich der Boden 316 Querkanäle 214 aufweisen, um die Tiefe oder den Querschnitt des Querkanals 214 zu vergrößern. Zusätzlich kann der Deckel 318 weitere Halter, Nasen oder ähnliches aufweisen an denen Flansche, Halter o.ä. befestigt sein können.According to an alternative embodiment, the transverse channels, as in FIG Fig. 8 shown achieved by material doubling the lid 318. Possibly. In addition, the bottom 316 may have transverse channels 214 to the depth or to increase the cross section of the transverse channel 214. In addition, the cover 318 may have further holders, noses or the like on which flanges, holders or the like. can be attached.

Die beschriebenen Ausführungsbeispiele sind nur beispielhaft gewählt und können miteinander kombiniert werden.The described embodiments are chosen only by way of example and can be combined with each other.

Claims (13)

  1. A two-part header (100) for a heat exchanger, which has a plurality of flat tubes (112) arranged in a longitudinal direction, with the following features:
    a bottom (316), which has a plurality of openings (924) arranged in a transverse direction for coupling the header (100) to the plurality of flat tubes (112); and
    a cover (318), which is arranged opposite to the bottom (316), wherein the cover (318) is formed from a metal sheet or is extruded, wherein the bottom (316) is connected fluid-tight to the cover (318), at least at edges extending in the longitudinal direction, wherein the cover (318) on a side facing the bottom (316) has a plurality of transverse channels (214), which are arranged opposite to the plurality of openings (924), and has only one longitudinal channel (320) extending in the longitudinal direction.
  2. The two-part header according to claim 1, wherein each of the plurality of openings (924) is designed to receive in each case an end of one of the plurality of flat tubes (112) and each of the plurality of transverse channels (214) is designed to form in each case a free space between the cover (318) and a respective end of one of the plurality of flat tubes.
  3. The two-part header according to any one of the preceding claims, wherein each of the plurality of transverse channels (214) is designed to enable a fluid flow between the longitudinal channel (320) and an interior of the plurality of flat tubes (112).
  4. The two-part header according to any one of the preceding claims, wherein the plurality of transverse channels (214) is arranged on both sides of the longitudinal channel (320).
  5. The two-part header according to any one of claims 1 to 3, wherein the plurality of transverse channels (214) is arranged on one side of the longitudinal channel (320).
  6. The two-part header according to any one of the preceding claims, wherein the bottom (316) has a plurality of additional transverse channels, which are arranged opposite to the transverse channels (214) of the cover (318).
  7. The two-part header according to any one of the preceding claims, wherein the bottom (316) has an additional longitudinal channel (1326), which is arranged opposite to the longitudinal channel (320) of the cover (318).
  8. The two-part header according to claim 7, wherein the bottom (316) has a curvature to form the additional longitudinal channel (1326).
  9. The two-part header according to any one of claims 1 to 6, wherein a surface section, opposite to the longitudinal channel (320), of the bottom (316) is made planar.
  10. The two-part header according to any one of the preceding claims, wherein the transverse channels (214) are formed by material doubling of the cover (318) .
  11. The two-part header according to any one of the preceding claims, wherein the bottom (316) at edges extending in the longitudinal direction has interconnections which are designed to enclose opposite edges of the cover (318).
  12. The two-part header according to any one of the preceding claims, wherein the bottom (316) and the cover (318) are designed to receive a partition wall at least at one end running transverse to the longitudinal direction.
  13. A condenser with the following features:
    a heat exchanger, which has a plurality of flat tubes (112) arranged in a longitudinal direction; and
    a two-part header (100) according to any one of the preceding claims, which is connected to the heat exchanger.
EP10717161.3A 2009-06-04 2010-05-06 Header for a condenser Active EP2438384B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009023954A DE102009023954A1 (en) 2009-06-04 2009-06-04 Collecting tube for a condenser
PCT/EP2010/056193 WO2010139525A2 (en) 2009-06-04 2010-05-06 Header for a condenser

Publications (2)

Publication Number Publication Date
EP2438384A2 EP2438384A2 (en) 2012-04-11
EP2438384B1 true EP2438384B1 (en) 2019-11-06

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EP10717161.3A Active EP2438384B1 (en) 2009-06-04 2010-05-06 Header for a condenser

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US (1) US9097469B2 (en)
EP (1) EP2438384B1 (en)
CN (1) CN102449425B (en)
DE (1) DE102009023954A1 (en)
WO (1) WO2010139525A2 (en)

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CN107255373A (en) * 2016-12-19 2017-10-17 浙江银轮机械股份有限公司 A kind of air-conditioning equipment heat exchanger and its current collector
DE102018220143A1 (en) 2018-11-23 2020-05-28 Mahle International Gmbh Collecting pipe for a heat exchanger
DE102018220139A1 (en) 2018-11-23 2020-05-28 Mahle International Gmbh Collecting pipe for a heat exchanger
DE102018220142A1 (en) * 2018-11-23 2020-05-28 Mahle International Gmbh Collecting pipe for a heat exchanger

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Also Published As

Publication number Publication date
WO2010139525A2 (en) 2010-12-09
DE102009023954A1 (en) 2010-12-09
EP2438384A2 (en) 2012-04-11
WO2010139525A3 (en) 2011-03-03
US9097469B2 (en) 2015-08-04
US20120138282A1 (en) 2012-06-07
CN102449425B (en) 2014-12-10
CN102449425A (en) 2012-05-09

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