EP1811259B1 - Fastening assembly for heat exchangers - Google Patents
Fastening assembly for heat exchangers Download PDFInfo
- Publication number
- EP1811259B1 EP1811259B1 EP07001145A EP07001145A EP1811259B1 EP 1811259 B1 EP1811259 B1 EP 1811259B1 EP 07001145 A EP07001145 A EP 07001145A EP 07001145 A EP07001145 A EP 07001145A EP 1811259 B1 EP1811259 B1 EP 1811259B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- assembly according
- tube plate
- flange
- seal
- box
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 13
- 238000004873 anchoring Methods 0.000 claims description 7
- 235000011837 pasties Nutrition 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
-
- 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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/067—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/08—Reinforcing means for header boxes
Definitions
- the invention relates to an arrangement for fastening a collecting tank on a tube plate of a heat exchanger according to the preamble of claim 1.
- connection between a tube sheet and a collecting box for heat exchangers in various forms.
- the type of connection depends on the selected materials of the tube plate on the one hand and the header box on the other.
- a cohesive, compound by welding or soldering is preferred.
- a plastic box and a tube sheet made of metal for.
- As aluminum come mechanical connections, so-called flare with inserted seal used.
- a closed sealing frame is inserted into a circumferential groove of the tube sheet, the collecting box is placed on the sealing frame and clamped to the ground by Umbördein the edge region of the soil.
- the seal between the box and the tube bottom is arranged laterally on the box, ie in the region of the side walls of the box, and overlapped by the erected edge region of the base.
- the seal preferably an O-ring thus enclosing the circumference of the box and is preferably arranged for guiding in a circumferential groove.
- the tubesheet abuts with its edge region from the outside to the seal and exerts due to the mechanical connection of the soil with the box also the required sealing force. This sealing or pressing force is exerted essentially in a plane which is arranged approximately parallel to the plane of the tube bottom.
- the advantage of the box / floor connection according to the invention lies in the reduced depth compared to the prior art.
- the arrangement of the seal on the side walls of the header box eliminates existing in the prior art circumferential groove in the tube sheet in which the seal was added. Due to the arrangement according to the invention, the tube sheet without such a groove, ie up to the peripheral, erected edge region can be formed flat, so that the passages for receiving the tubes can extend to the edge region.
- the block dimension, ie the depth of the tube / rib block corresponds approximately to the depth of the bottom or of the box received in the bottom.
- the seal between the box and the floor can also be designed as a pasty seal, which is applied in a doughy form on the box and hardens after connection to the tube sheet.
- Suitable sealing materials are, for example, silicone or a two-component plastic.
- the edge region of the bottom has a lateral sealing region, to which a fastening region adjoins.
- the sealing area is smooth and abuts the seal with a certain preload, while the mounting area is deformable and serves to establish a mechanical connection between the box and the floor.
- the attachment portion for this purpose has T-shaped punched out locking elements, which are deformed after insertion of the box in the ground to U-shaped locking elements ("claws"), which engage with the box grooves and with the side walls of the box protruding ribs.
- U-shaped locking elements By the U-shaped deformed locking elements, the box is on the one hand in the longitudinal direction of the tubes of the heat exchanger, ie secured perpendicular to the tube bottom plane and on the other hand transversely to this direction, ie in a plane parallel to the tube bottom.
- the fastening region of the tube plate is designed as a locking strip with a continuous outer edge and punched openings, which is bent around the flange of the box and fixed there by means of anchoring elements.
- the edge region of the tube sheet and the flange of the box is made.
- the tube sheet passages for receiving pipes in particular of flat tubes, wherein the passages are formed either to the side of the box or to the opposite side, d. H. the collar of the passages points either to the box or in the direction of the tube / rib block.
- a maximum length for the passages which extend over the entire width of the soil and reach up to the wall of the edge region of the soil.
- the collar of the passage on the narrow sides in the wall of the edge area over.
- a maximum tube depth or block depth for the tube / rib block in relation to the bottom width can be achieved.
- the block depth thus corresponds approximately to the overall depth of the heat exchanger.
- the collection box and the tube sheet are self-locking connected to each other.
- a seal can be pressed more strongly against the tubesheet and the collecting box.
- pressure that would lead to loosening of the tube plate from the header be converted into a self-locking clamping force.
- Fig. 1 shows a heat exchanger 1, partially shown, which a collection box 2, hereinafter also referred to as a short box called a tube plate 3, hereafter also called bottom, and a tube / rib block 4, hereinafter also referred to as a short block.
- the heat exchanger 1 can be used as a coolant radiator for cooling an internal combustion engine of a motor vehicle or as a radiator heating and air conditioning of a motor vehicle - it is flowed through in this case of coolant and secondary side acted upon by ambient air.
- the box 2 is preferably made of plastic, ie formed as a molded part. Likewise, however, is a preparation of metal, for. B. achtmetalldruck- or injection molding possible.
- the collection box 2 is, as will be shown and explained in more detail below, formed as a box-shaped hollow body, which has a longitudinal side 2a with molded ribs 5 and a narrow side 2b, also with molded ribs 5. (the two opposite sides are not visible in this representation and therefore not marked).
- the collecting box 2 thus has a substantially rectangular floor plan with rounded corners.
- a nozzle 2c for the entry or exit of a heat exchange medium, for example, the coolant of a cooling circuit of an internal combustion engine.
- the tube sheet 3 is made of a metal sheet, preferably aluminum sheet without cutting and takes the pipes of the block 4, not shown.
- the tube plate 3 has on its upper side U-shaped locking elements 6 (so-called claws), which - which will be explained - are in engagement with the ribs 5.
- Fig. 2 shows an enlarged section of the attachment of collection box 2 and tube sheet 3 in another isometric view.
- the U-shaped deformed locking elements 6 are part of the bottom 3, pass through a groove 5 arranged in the groove 5 a and lie with their U-legs on both sides of the rib 5 at.
- Fig. 3 shows in a 3-D representation of the open bottom 3, ie before the connection to the box 2, which is not shown here.
- the tube plate 3 has an approximately rectangular planar bottom portion 3a, are received in which tube ends 7 of flat tubes of the block 4, not shown.
- the flat tube ends 7 extend recognizably over the entire width (depth) of the bottom region 3a.
- the bottom region 3 a surrounds an approximately vertically erected circumferential edge region 3 b, which has a multiplicity of T-shaped locking elements 6 'on its outer edge.
- the tube sheet 3 is preferably made of an aluminum sheet, ie made of a board, wherein the T-shaped locking elements 6 'are punched out before the edge region 3b is set up.
- Fig. 4 shows the "closed" tube sheet 3 with U-shaped locking elements 6, which are formed by deformation of the T-shaped locking elements 6 '. However, this transformation takes place after placing the box 2, which is omitted here - for better illustration.
- Fig. 5 shows the box 2 in a 3-D representation and a cross section through the two longitudinal sides 2a, at the foot of a circumferential groove 8 is arranged for receiving a round cord seal 9.
- the groove 8 is used for positioning and guiding the round cord seal 9, also called O-ring, during assembly of the box 2, ie when inserted into the open bottom 3, as in Fig. 3 is shown.
- the round cord seal 9 is a closed, preferably molded from an elastomer sealing frame which is inserted with slight bias in the groove 8.
- the corner areas of the box 2 and the tube bottom 3 are sufficiently rounded to ensure proper installation of the seal on both sides.
- Fig. 6 shows a cross section through the collecting box 2 with longitudinal sides 2a, groove 8 and inserted round cord seal 9.
- the long sides 2a - this also applies to the narrow sides 2b not shown here - are thickened in their foot to a flange 2d, in which the groove 8 is introduced ,
- the groove 8 is open to the outside, but the sealing frame 9 can not fall out of the groove 8 after insertion due to its bias.
- the ribs 5 are arranged, which have on their underside an approximately rectangular groove 5a formed.
- the box 2 is - as mentioned - used with inserted round cord seal 9 in the open bottom 3.
- Fig. 7 shows the finished connection (mounting arrangement) between box 2 and tube sheet 3, with U-shaped locking elements 6, which rest on the top of the flange 2d.
- the tube sheet 3 is inserted with its locking elements 6 'in the grooves 5a until the upper edge of the flange 2d below the lower edge of the locking elements 6' is - then the locking elements-6 'are bent inwardly around the respective ribs 5, so that they include these as U-shaped locking elements 6.
- Box 2 and bottom 3 are thus fixed against each other in all directions.
- the round cord seal 9 is slightly deformed by the system on the inside of the edge region 3b in the manner of an O-ring, so that the required Sealing effect is achieved without requiring a relatively high contact pressure would be required.
- a pasty seal for example based on silicone
- a two-component plastic can be deposited in a corresponding groove, wherein the plastic cures after application to air.
- the two-component plastic is introduced into a groove, for example, by means of a two-component plastic injection technique. We first introduce a first component and then the second component, in particular injected. In another embodiment, the two components are mixed and then introduced into the groove, in particular injected.
- the bottom 3, ie the flat bottom portion 3 a has passages 10 for receiving flat tubes 11, which communicate with the interior of the collecting box 2 and are part of the above-mentioned block 4.
- the passages 10 are - as known per se - produced by punching and Kragen realise, wherein the collar of the passages 10 are formed in this embodiment, to the side of the block. This results in a maximum clear width Di of the passage 10 (corresponds to the depth of the flat tube 11).
- the outer dimension of the passage 10 is denoted by Da and corresponds to the width of the bottom 3.
- the collar of the passage 10 is thus in the edge region 3b of the bottom 3 over.
- the block depth of the heat exchanger which corresponds approximately to the dimension Di, is thus only slightly smaller than the bottom width Da, more precisely, only by twice the bottom wall thickness less.
- FIGS. 8, 9 and 10 show a further embodiment of the invention for a mounting arrangement of a box with a tube sheet of a heat exchanger.
- Fig. 8 shows a (closed) bottom 12, which is placed on pipe ends 13 of a tube / rib block 14.
- the tube sheet 12 has a circumferential edge region 12a arranged at the outer edges Locking strips 15, which are notched in the corner areas.
- Fig. 9 shows a collection box 16, which with respect to circumferential groove 8 and inserted round cord seal 9 corresponds to the previous embodiment (therefore, the same reference numerals).
- the collecting box has a circumferential flange 16a with a top 16b on which anchoring elements 17 are arranged in the form of a series of teeth.
- Fig. 10 shows an enlarged section of the finished connection, ie the locking bar 15 in engagement with the anchoring elements 17 on the box 16.
- the locking bar 15 of the tube sheet 12 has a continuous outer edge 15a and behind arranged openings 15b, which in the form and arrangement of the toothed rack anchoring elements 17 correspond.
- the four circumferentially arranged locking strips 15 are bent inwardly such that the teeth 17 pass through the openings 15b in the locking strip 15 and thus bring about a positive connection.
- the sealing of collecting tank and tube sheet takes place in the same manner as in the previous embodiment:
- the edge region 12a of the bottom 12 exerts a (in the drawing) horizontal contact pressure on the O-ring 9, ie approximately parallel to the plane of the tube bottom 12th
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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)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Description
Die Erfindung betrifft eine Anordnung zur Befestigung eines Sammelkastens auf einem Rohrboden eines Wärmeübertragers nach dem Oberbegriff des Patentanspruches 1.The invention relates to an arrangement for fastening a collecting tank on a tube plate of a heat exchanger according to the preamble of claim 1.
Derartige Befestigungsanordnungen sind als Verbindungen zwischen einem Rohrboden und einem Sammelkasten für Wärmeübertrager in verschiedensten Formen bekannt. Die Art der Verbindung hängt von den gewählten Materialien des Rohrbodens einerseits und des Sammelkastens andererseits ab. Bestehen beide Teile der Verbindung aus dem gleichen Material, z. B. aus Kunststoff oder aus Aluminiumblech, wird eine stoffschlüssige, Verbindung durch Schweißen oder Löten bevorzugt. Bei unterschiedlichen Materialien, z. B. einem Kunststoffkasten und einem Rohrboden aus Metall, z. B. Aluminium, kommen mechanische Verbindungen, so genannte Bördelverbindungen mit eingelegter Dichtung zum Einsatz. Dabei wird ein geschlossener Dichtrahmen in eine umlaufende Nut des Rohrbodens eingelegt, der Sammelkasten wird auf den Dichtrahmen aufgesetzt und mit dem Boden durch Umbördein des Randbereiches des Bodens verspannt. Damit erhält man eine dichte Verbindung zwischen einem Kunststoffkasten und einem Metallboden. Derartige Kasten/Boden-Verbindungen wurden durch folgende Druckschriften der Anmelderin bekannt:
Insbesondere besteht bei steigendem Druck bei den bekannten Sammelkästen die Gefahr, dass sich diese aus der Verankerung lösen. Dadurch kann sich insbesondere die Spannkraft der Dichtung verringern.Such mounting arrangements are known as connections between a tube sheet and a collecting box for heat exchangers in various forms. The type of connection depends on the selected materials of the tube plate on the one hand and the header box on the other. Are both parts of the compound of the same material, eg. As plastic or aluminum sheet, a cohesive, compound by welding or soldering is preferred. For different materials, eg. B. a plastic box and a tube sheet made of metal, for. As aluminum, come mechanical connections, so-called flare with inserted seal used. In this case, a closed sealing frame is inserted into a circumferential groove of the tube sheet, the collecting box is placed on the sealing frame and clamped to the ground by Umbördein the edge region of the soil. This gives a tight connection between a plastic box and a metal floor. Such box / floor connections have been known by the following publications of the applicant:
In particular, with increasing pressure in the known collecting tanks there is a risk that they will detach from the anchorage. This can in particular reduce the clamping force of the seal.
Es ist Aufgabe der vorliegenden Erfindung, eine Anordnung zur Befestigung eines Sammelkastens auf einem Rohrbodens eines Wärmeübertragers der eingangs genannten Art zu schaffen, welche eine geringere Bautiefe des Wärmeübertragers zur Folge hat.It is an object of the present invention to provide an arrangement for fastening a collecting tank on a tube plate of a heat exchanger of the type mentioned, which has a smaller overall depth of the heat exchanger result.
Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst. Erfindungsgemäß ist vorgesehen, dass die Dichtung zwischen Kasten und Rohrboden seitlich am Kasten, d. h. im Bereich der Seitenwände des Kastens angeordnet ist und von dem aufgestellten Randbereich des Bodens übergriffen wird. Die Dichtung, vorzugsweise ein Rundschnurring umschließt somit den Umfang des Kastens und ist vorzugsweise zur Führung in einer umlaufenden Nut angeordnet. Der Rohrboden, liegt mit seinem Randbereich von der Außenseite her an der Dichtung an und übt aufgrund der mechanischen Verbindung des Bodens mit dem Kasten auch die erforderliche Dichtkraft aus. Diese Dicht- oder Anpresskraft wird im Wesentlichen in einer Ebene ausgeübt, welche etwa parallel zur Ebene des Rohrbodens angeordnet ist. Bei Verwendung eines O-Ringes, der in einer entsprechenden Nut geführt wird, ist keine hohe Dichtkraft erforderlich, sondern lediglich eine leichte Verformung des O-Querschnittes. Der Vorteil der erfindungsgemäßen Kasten/Boden-Verbindung liegt in der verringerten Bautiefe gegenüber dem Stand der Technik. Durch die Anordnung der Dichtung an den Seitenwänden des Sammelkastens entfällt die beim Stand der Technik vorhandene umlaufende Nut im Rohrboden, in welcher die Dichtung aufgenommen wurde. Aufgrund der erfindungsgemäßen Anordnung kann der Rohrboden ohne eine derartige Rinne, d. h. bis zu dem umlaufenden, aufgestellten Randbereich eben ausgebildet werden, so dass die Durchzüge zur Aufnahme der Rohre bis an den Randbereich reichen können. Damit entspricht das Blockmaß, d. h. die Tiefe des Rohr/Rippenblockes etwa der Tiefe des Bodens bzw. des im Boden aufgenommenen Kastens. Insbesondere bei Verwendung des erfindungsgemäßen Wärmeübertragers in einem Kraftfahrzeug, z. B. als Kühlmittelkühler zur Kühlung einer Brennkraftmaschine wirkt sich die reduzierte Bautiefe besonders vorteilhaft aus.This object is solved by the features of claim 1. According to the invention, it is provided that the seal between the box and the tube bottom is arranged laterally on the box, ie in the region of the side walls of the box, and overlapped by the erected edge region of the base. The seal, preferably an O-ring thus enclosing the circumference of the box and is preferably arranged for guiding in a circumferential groove. The tubesheet, abuts with its edge region from the outside to the seal and exerts due to the mechanical connection of the soil with the box also the required sealing force. This sealing or pressing force is exerted essentially in a plane which is arranged approximately parallel to the plane of the tube bottom. When using an O-ring, which is guided in a corresponding groove is, no high sealing force is required, but only a slight deformation of the O-section. The advantage of the box / floor connection according to the invention lies in the reduced depth compared to the prior art. The arrangement of the seal on the side walls of the header box eliminates existing in the prior art circumferential groove in the tube sheet in which the seal was added. Due to the arrangement according to the invention, the tube sheet without such a groove, ie up to the peripheral, erected edge region can be formed flat, so that the passages for receiving the tubes can extend to the edge region. Thus, the block dimension, ie the depth of the tube / rib block corresponds approximately to the depth of the bottom or of the box received in the bottom. In particular, when using the heat exchanger according to the invention in a motor vehicle, for. As a coolant radiator for cooling an internal combustion engine, the reduced overall depth has a particularly advantageous effect.
Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen. Die Dichtung zwischen Kasten und Boden kann auch als pastöse Dichtung ausgebildet sein, welche in einer teigigen Form auf den Kasten aufgebracht wird und nach Verbindung mit dem Rohrboden aushärtet. Als Dichtungswerkstoffe eignen sich beispielsweise Silikon oder ein Zweikomponentenkunststoff.Further advantageous embodiments of the invention will become apparent from the dependent claims. The seal between the box and the floor can also be designed as a pasty seal, which is applied in a doughy form on the box and hardens after connection to the tube sheet. Suitable sealing materials are, for example, silicone or a two-component plastic.
Nach einer vorteilhaften Ausgestaltung der Erfindung weist der Randbereich des Bodens einen seitlichen Dichtbereich auf, an welchen sich ein Befestigungsbereich anschließt. Der Dichtbereich ist glatt ausgebildet und liegt an der Dichtung mit einer bestimmten Vorspannung an, während der Befestigungsbereich verformbar ist und der Herstellung einer mechanischen Verbindung zwischen Kasten und Boden dient.According to an advantageous embodiment of the invention, the edge region of the bottom has a lateral sealing region, to which a fastening region adjoins. The sealing area is smooth and abuts the seal with a certain preload, while the mounting area is deformable and serves to establish a mechanical connection between the box and the floor.
Nach einer ersten Ausführungsform weist der Befestigungsbereich hierzu T-förmig ausgestanzte Verriegelungselemente auf, welche nach dem Einsetzen des Kastens in den Boden zu U-förmigen Verriegelungselementen ("Krallen") verformt werden, welche in Eingriff mit am Kasten angeordneten Nuten und mit von den Seitenwänden des Kastens abragenden Rippen stehen. Durch die U-förmig verformten Verriegelungselemente wird der Kasten einerseits in Längsrichtung der Rohre des Wärmeübertragers, d. h. senkrecht zur Rohrbodenebene gesichert und andererseits quer zu dieser Richtung, d. h. in einer Ebene parallel zur Ebene des Rohrbodens.According to a first embodiment, the attachment portion for this purpose has T-shaped punched out locking elements, which are deformed after insertion of the box in the ground to U-shaped locking elements ("claws"), which engage with the box grooves and with the side walls of the box protruding ribs. By the U-shaped deformed locking elements, the box is on the one hand in the longitudinal direction of the tubes of the heat exchanger, ie secured perpendicular to the tube bottom plane and on the other hand transversely to this direction, ie in a plane parallel to the tube bottom.
Nach einer zweiten Ausführungsform ist der Befestigungsbereich des Rohrbodens als Verriegelungsleiste mit durchgehender Außenkante und ausgestanzten Öffnungen ausgebildet, welche um den Flansch des Kastens gebogen und dort über Verankerungselemente fixiert wird. Damit wird eine formschlüssige Verbindung zwischen dem Randbereich des Rohrbodens und dem Flansch des Kastens hergestellt.According to a second embodiment, the fastening region of the tube plate is designed as a locking strip with a continuous outer edge and punched openings, which is bent around the flange of the box and fixed there by means of anchoring elements. In order for a positive connection between the edge region of the tube sheet and the flange of the box is made.
Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung weist der Rohrboden Durchzüge zur Aufnahme von Rohren, insbesondere von Flachrohren auf, wobei die Durchzüge entweder zur Seite des Kastens oder zur entgegengesetzten Seite ausformbar sind, d. h. der Kragen der Durchzüge weist entweder zum Kasten oder in Richtung des Rohr/Rippenblockes. Im letzteren Falle ergibt sich eine maximale Länge für die Durchzüge, welche sich über die gesamte Breite des Bodens erstrecken und bis an die Wandung des Randbereiches des Bodens heranreichen. Damit geht der Kragen des Durchzuges an den Schmalseiten in die Wandung des Randbereiches über. Damit kann eine maximale Rohrtiefe bzw. Blocktiefe für den Rohr/Rippenblock im Verhältnis zur Bodenbreite erzielt werden. Die Blocktiefe entspricht damit annähernd der Bautiefe des Wärmeübertragers.According to a further advantageous embodiment of the invention, the tube sheet passages for receiving pipes, in particular of flat tubes, wherein the passages are formed either to the side of the box or to the opposite side, d. H. the collar of the passages points either to the box or in the direction of the tube / rib block. In the latter case, a maximum length for the passages, which extend over the entire width of the soil and reach up to the wall of the edge region of the soil. Thus, the collar of the passage on the narrow sides in the wall of the edge area over. Thus, a maximum tube depth or block depth for the tube / rib block in relation to the bottom width can be achieved. The block depth thus corresponds approximately to the overall depth of the heat exchanger.
Nach einer weiteren vorteilhaften Ausgestaltung sind der Sammelkasten und der Rohrboden selbstsichernd miteinander verbindbar. Besonders vorteilhaft kann insbesondere bei steigendem Druck eine Dichtung stärker gegen den Rohrboden und den Sammelkasten gedrückt werden. Insbesondere kann Druck, der zum Lösen des Rohrbodens vom Sammelkasten führen würde, in eine selbstsichernde Spannkraft umgewandelt werden.According to a further advantageous embodiment of the collection box and the tube sheet are self-locking connected to each other. Particularly advantageous, in particular with increasing pressure, a seal can be pressed more strongly against the tubesheet and the collecting box. In particular, pressure that would lead to loosening of the tube plate from the header, be converted into a self-locking clamping force.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden näher erläutert. Es zeigen
- Fig. 1
- eine erfindungsgemäße Befestigungsanordnung für einen Kasten und einen Rohrboden eines Wärmeübertragers,
- Fig. 2
- einen vergrößerten Ausschnitt der Befestigungsanordnung aus
Fig. 1 , - Fig. 3
- den Rohrboden vor dem Einsetzen des Kastens,
- Fig. 4
- den Rohrboden mit verformtem Randbereich nach dem Einsetzen des hier nicht dargestellten Kastens,
- Fig. 5
- den Kasten mit eingelegter Dichtung und Querschnitt in 3-D-Darstellung,
- Fig. 6
- einen Schnitt durch den Kasten mit eingelegter Dichtung,
- Fig. 7
- einen Querschnitt durch den Kasten und den Rohrboden mit Durchzug,
- Fig. 8
- ein zweites Ausführungsbeispiel für eine Kasten/Boden-Verbindung mit Rohrboden,
- Fig. 9
- den Kasten mit Verankerungselementen und
- Fig. 10
- einen vergrößerten Ausschnitt der Verbindung zwischen Rohrboden und Kasten.
- Fig. 1
- a fastening arrangement according to the invention for a box and a tube plate of a heat exchanger,
- Fig. 2
- an enlarged section of the mounting arrangement
Fig. 1 . - Fig. 3
- the tubesheet before inserting the box,
- Fig. 4
- the tubesheet with deformed edge region after insertion of the box, not shown here,
- Fig. 5
- the box with inlaid seal and cross-section in 3-D representation,
- Fig. 6
- a section through the box with inserted seal,
- Fig. 7
- a cross section through the box and the tube sheet with passage,
- Fig. 8
- a second embodiment of a box / floor connection with tube sheet,
- Fig. 9
- the box with anchoring elements and
- Fig. 10
- an enlarged section of the connection between the tube sheet and box.
Die Rundschnurdichtung 9 ist ein geschlossener, vorzugsweise aus einem Elastomer gespritzter Dichtrahmen, der mit leichter Vorspannung in die Nut 8 eingelegt wird. Die Eckbereiche des Kastens 2 und des Rohrbodens 3 sind hinreichend abgerundet, um eine einwandfreie Anlage der Dichtung an beiden Seiten zu gewährleisten.The
In Abweichung des dargestellten Ausführungsbeispieles, insbesondere der T-förmig ausgebildeten Verriegelungselemente 6' und der daraus umgeformten U-förmigen Verriegelungselemente 6 kann als Alternative auch eine so genannte Wellenschlitzbördelung, wie sie in der eingangs genannten Druckschrift der Anmelderin
Claims (15)
- Assembly for fastening a header box (2) to a tube plate (3) of a heat exchanger, wherein the header box (2) can be made of a material that can be cast, in particular a plastic, and the tube plate (3) of a deformable material, in particular metal, the tube plate (3) having a raised, all-round edge area (3b) and the header box (2) having an all-round flange (2d) such that a seal (9) can be arranged between the tube plate (3) and the flange (2d) and the said edge area (3b) can be mechanically connected to the flange (2d), characterised in that the seal (9) can be arranged between a lateral part (8) of the flange (2d) and the raised edge area (3b) of the tube plate (3).
- Assembly according to Claim 1, characterised in that the lateral part of the flange (2d) has an all-round groove (8) in which the seal (9) is held.
- Assembly according to Claims 1 or 2, characterised in that the seal is in the form or a loop or O-ring (9).
- Assembly according to any of the preceding claims, characterised in that the seal consists of a pasty sealing material that can be laid into the groove (8) and hardens therein.
- Assembly according to any of the preceding claims, characterised in that the seal can be made of silicone or a two-component plastic.
- Assembly according to any of the preceding claims, characterised in that the edge area (3b) of the tube plate (3) has a lateral sealing area against which the seal (9) rests, and a fastening area (6) which overlaps the flange (2d0, which is joined to the header box (2).
- Assembly according to Claim 6, characterised in that the header box (2) has longer sides (2a) and shorter sides (2b), and the fastening area (6) of the tube plate (3) is connected, preferably with shape interlock, to the said longer and shorter sides (2a, 2b).
- Assembly according to Claims 6 or 7, characterised in that the fastening area comprises locking elements (6', 6) stamped to form a T-shape that can be deformed to a U-shape and the longer sides (2a) of the header box (2) have projecting fins (5) with grooves (5a), and the said locking elements (6) engage with the said grooves (5a).
- Assembly according to Claim 8, characterised in that in each case one U-shaped locking element (6) engages in one groove (5a).
- Assembly according to Claims 6 or 7, characterised in that the fastening area is formed as a locking strip (15) with openings (16b) stamped out of it, anchoring elements (17) are arranged above the flange (16a) of the header box (16), and the locking strip (15) overhangs the upper side (16b) of the flange (1a) in such manner that the anchoring elements (17) engage in the openings (16b).
- Assembly according to Claim 10, characterised in that the locking strip (15) is bent outwards in its corner areas.
- Assembly according to any of the preceding claims, characterised in that to receive tubes, in particular flat tubes (11), the tube plate (3) has passages which are formed on the side facing towards the header box (2).
- Assembly according to any of the preceding claims, characterised in that the tube plate (3) has passages (10) which are formed on the side facing away from the header box (2).
- Assembly according to Claim 13, characterised in that the passages (10) have longer and shorter sides, and the wall of the passages (10) on their shorter sides merges into the edge area (3b) of the tube plate (3).
- Assembly according to any of the preceding claims, characterised in that the header box (2) and the tube plate (3) can be connected to one another in a self-locking manner.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006002854A DE102006002854A1 (en) | 2006-01-19 | 2006-01-19 | Mounting arrangement for heat exchangers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1811259A1 EP1811259A1 (en) | 2007-07-25 |
EP1811259B1 true EP1811259B1 (en) | 2009-04-15 |
Family
ID=37898623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07001145A Not-in-force EP1811259B1 (en) | 2006-01-19 | 2007-01-19 | Fastening assembly for heat exchangers |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1811259B1 (en) |
AT (1) | ATE428901T1 (en) |
DE (2) | DE102006002854A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008019320A1 (en) * | 2008-04-16 | 2009-10-22 | Behr Gmbh & Co. Kg | Heat exchanger, particularly exhaust gas evaporator for motor vehicle, has heat exchanger block and two axial termination devices, where heat exchanger block has axial inlets and axial outlets |
DE102009009807A1 (en) * | 2009-02-20 | 2010-08-26 | Behr Gmbh & Co. Kg | Mechanical connector for mechanically connecting tube plate and air box for intercooler of internal combustion engine of motor vehicle, has tube plate's edge region including continuous, linear edge strip above deformable tabs |
JP2013032901A (en) * | 2011-06-27 | 2013-02-14 | Denso Corp | Gasket material for heat exchanger, and heat exchanger using the same |
DE102012206982A1 (en) | 2012-04-26 | 2013-10-31 | Behr Gmbh & Co. Kg | Heat exchanger |
FR3127562B1 (en) * | 2021-09-24 | 2024-01-19 | Sogefi Air & Cooling | Heat transfer liquid distribution device |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3841470A1 (en) * | 1988-12-09 | 1990-06-13 | Sueddeutsche Kuehler Behr | WATERCASE CLAMP CONNECTION |
DE4425238C2 (en) * | 1994-07-16 | 1997-05-15 | Laengerer & Reich Gmbh & Co | Heat exchangers, especially coolers |
FR2732454B1 (en) * | 1995-03-27 | 1997-05-09 | Valeo Thermique Moteur Sa | HEAT EXCHANGER, ESPECIALLY FOR A MOTOR VEHICLE |
FR2742528B1 (en) * | 1995-12-13 | 1998-01-30 | Valeo Thermique Moteur Sa | HEAT EXCHANGER WITH REINFORCED COLLECTOR PLATE, ESPECIALLY FOR A MOTOR VEHICLE |
DE29611633U1 (en) * | 1996-07-04 | 1997-10-30 | Autokühler GmbH & Co KG, 34369 Hofgeismar | Heat exchanger |
FR2789758B1 (en) * | 1998-11-30 | 2001-04-27 | Valeo Thermique Moteur Sa | METHOD FOR ASSEMBLING A HEAT EXCHANGER, PARTICULARLY A MOTOR VEHICLE, AND EXCHANGER THUS OBTAINED |
FR2805036B1 (en) * | 2000-02-10 | 2002-06-14 | Valeo Thermique Moteur Sa | HEAT EXCHANGER WITH IMPROVED SEAL, PARTICULARLY FOR MOTOR VEHICLE |
DE10016029A1 (en) * | 2000-03-31 | 2001-10-04 | Modine Mfg Co | Heat exchanger with pipe ends fitting into passages , heat exchange circuit, connecting section, ridge at thin-walled end |
US7121329B2 (en) * | 2001-10-30 | 2006-10-17 | Modine Manufacturing Company | Plastic tanked heat exchanger-side, header tank assembly |
EP1450123A1 (en) * | 2003-02-20 | 2004-08-25 | Behr France S.A.R.L. | Mechanically assembled heat exchanger, particularly for motor vehicles |
DE10335344A1 (en) * | 2003-08-01 | 2005-03-10 | Modine Mfg Co | Automobile radiator |
-
2006
- 2006-01-19 DE DE102006002854A patent/DE102006002854A1/en not_active Withdrawn
-
2007
- 2007-01-19 DE DE502007000590T patent/DE502007000590D1/en active Active
- 2007-01-19 AT AT07001145T patent/ATE428901T1/en active
- 2007-01-19 EP EP07001145A patent/EP1811259B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE502007000590D1 (en) | 2009-05-28 |
DE102006002854A1 (en) | 2007-07-26 |
ATE428901T1 (en) | 2009-05-15 |
EP1811259A1 (en) | 2007-07-25 |
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