EP3184949A2 - Élément de tôle comprenant une structure nervurée présentant une grille d'un caloporteur et procédé de fabrication - Google Patents

Élément de tôle comprenant une structure nervurée présentant une grille d'un caloporteur et procédé de fabrication Download PDF

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Publication number
EP3184949A2
EP3184949A2 EP16203917.6A EP16203917A EP3184949A2 EP 3184949 A2 EP3184949 A2 EP 3184949A2 EP 16203917 A EP16203917 A EP 16203917A EP 3184949 A2 EP3184949 A2 EP 3184949A2
Authority
EP
European Patent Office
Prior art keywords
metal part
sheet metal
cutting
sections
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16203917.6A
Other languages
German (de)
English (en)
Other versions
EP3184949A3 (fr
Inventor
Johann Ehrmanntraut
Tobias Isermeyer
Johannes Kälber
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 International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP3184949A2 publication Critical patent/EP3184949A2/fr
Publication of EP3184949A3 publication Critical patent/EP3184949A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/10—Incompletely punching in such a manner that the parts are still coherent with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/12—Punching using rotatable carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/022—Making the fins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/022—Making the fins
    • B21D53/025—Louvered fins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet 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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F28F1/128—Fins with openings, e.g. louvered fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/08—Fins with openings, e.g. louvers

Definitions

  • the present invention relates to a sheet metal part of a fin structure of a heat exchanger having gills, according to the preamble of claim 1.
  • the invention further relates to a method for producing such a sheet metal part by means of a pair of rollers and a roller of such a pair of rollers.
  • Heat exchangers serve the heat exchange between two fluids and are used in a variety of applications. Such heat exchangers can be used for example in air conditioning systems and in motor vehicles.
  • a heat exchanger usually has two fluidically separate duct systems which are connected to one another in a heat-transmitting manner.
  • rib structures arranged in one of the channel systems. To increase the heat transfer and / or an advantageous influence on the flow of the corresponding fluid such rib structures are usually provided with gills, which in particular allow a flow through the rib structure.
  • the EP 1 331 464 A2 as well as the DE 200 10 994 U1 show such rib structures with gills, which are arranged in gill sections, wherein the gill sections are separated by gill-free smooth areas.
  • Such rib structures are usually made of a sheet metal part, wherein the sheet metal parts provided for the purpose of producing the gills with cuts whose cut edges are then raised to produce the gills. To provide the respective sheet metal part with the cuts or for introducing a cutting structure in the sheet metal part, this is processed with appropriate resources, eg. With a pair of rollers. This results in the sheet metal part symmetrical cutting structures and accordingly symmetrical gill structures.
  • the outer edges of the sheet metal parts correspond to such smooth areas in order to reduce damage to the sheet metal part and / or reject rates.
  • Said smooth regions in which no gills are provided in the rib structure represent disadvantages with regard to the flow of the associated fluid and / or the heat exchange, so that they can lead to a lower efficiency of the associated heat exchanger.
  • the rib structures are to be adapted to these.
  • the present invention therefore deals with the problem of providing improved or at least alternative embodiments for a sheet metal part of a gill-containing rib structure and for a method for producing such a sheet metal part and for a roll for producing such a sheet metal part, which in particular by a more variable production of Rib structure and / or increased variability of possible geometries of the rib structures and / or lower manufacturing costs of the rib structure distinguished.
  • the present invention is based on the general idea to provide a sheet metal part for producing a gill-comprising rib structure of a heat exchanger with sections of different number of cuts, wherein from the respective cut such a gill is produced.
  • the sheet metal part thus has sections with a different number of gills.
  • This allows a more flexible use of the rib structure.
  • rib structures of different geometry can be produced from the sheet metal part, which accordingly can be used in different heat exchangers, in particular in heat exchangers of different geometrical conditions.
  • an increased variety of rib structures made of the same sheet metal part is possible.
  • the manufacturing cost of the sheet metal parts or the rib structures can be reduced.
  • the sheet metal part thus has the cutting structure, which subsequently serves to form the gills.
  • the sectional structure has at least two cutting sections, wherein the respective section comprises at least two sections.
  • the respective cut can serve to produce such a gill, for example by reshaping the cut edges.
  • the gills of each section are doing with an acute angle of sheet metal part, the acute angle is the smaller angle between the gill and the sheet metal part.
  • the cut portions are in a width direction of the sheet metal part separated from each other, wherein cut-free smooth areas are arranged between the cut sections.
  • the width direction is therefore usually transverse to the cuts.
  • the cutting sections extend in the width direction over a sectional structure width. At least two adjacent sections in the width direction have a different number of cuts. Accordingly, at least two widthwise adjacent gill portions have a different number of gills. That is to say, the sheet metal part extends in the width direction of the cutting structure over a width, which is referred to below as the sheet metal part width.
  • the sectional structure has at least two such section sections, of which at least two have a different number of sections. Accordingly, after producing the gills from the cuts, the sheet metal part has at least two widthwise adjacent gill portions which have a different number of gills.
  • the sectional structure is formed asymmetrically with respect to the center of the sheet metal part width, which is referred to below as sheet metal part width center.
  • the gill structure is formed asymmetrically with respect to the sheet metal part width center.
  • the asymmetrical design is realized by means of the different number of cuts or gills. This asymmetrical design makes it possible to produce rib structures of different geometry or rib structures matched to different geometries from the sheet metal part or from identically designed sheet metal parts.
  • the production of the rib structure from the sheet metal part can be done by a corresponding forming of the sheet metal part. This reshaping is advantageously carried out after the sheet metal part has been provided with the cutting structure and / or after the sheet metal part has been provided with the gills.
  • the sheet metal part can in principle be made of any metal-containing material.
  • the sheet metal part is made of a material with good thermal conductivity.
  • metals or metal-containing alloys are used. To think about aluminum or an aluminum alloy.
  • the cut sections have a same, running in the width direction section width section. It is also conceivable that the cut sections each have an equal number of cuts.
  • the cuts in the respective section are arranged equidistantly, in particular in the width direction equidistant.
  • the gills of the cutting section are also arranged equidistant.
  • the sections of such a section are arranged at different distances and / or sections of different sections at different distances.
  • the larger cut section width of one of the cut sections results in a higher number of cuts or gills.
  • At least two of the cut portions have different widthwise section widths.
  • rib structures of different geometry can be produced from the sheet metal part.
  • the different sectional section widths can in this case, in particular in equidistantly arranged sections, lead to the cut sections of different section widths have different numbers of cuts.
  • Embodiments in which section sections of different sectional section width are alternately arranged at least in sections are advantageous. That is, in at least one region, cut portions of different cut portion widths are alternately arranged. This leads in particular to the fact that immediately adjacent cut sections in this section have different cut section widths. As a result, a larger number of rib structures of different geometry can be produced from the sheet metal part.
  • such a section has a minimum section width. That is, there is at least one other cut portion having a larger cut width. In this case, it is preferable if the section width of at least one other section corresponds to a multiple whole of the minimum section width.
  • the same can also apply to the distances between the cut sections. That is, there is a minimum widthwise distance between two of the cut portions, the distance between at least two other cut portions corresponding to a multiple whole of the minimum distance.
  • the sheet metal part in the width direction has outer edges, hereinafter also referred to as longitudinal edges, which are cut free. This means that the sheet metal part has such a smooth area at these edges. As a result, damage to the sheet metal part is avoided when providing the cutting structure or at least reduced and / or reduces a reject rate of the sheet metal part.
  • the gills of the section sections adjacent in the width direction have the same orientation, that is to say they are shaped or elevated in the same direction.
  • gills of widthwise adjacent cut portions are oriented in opposite directions.
  • the gills of such a section section are formed in one direction, in particular raised, while the gills of such adjacent in the width direction section section are formed in the opposite direction, in particular superscript.
  • the fluid flowing through the rib structure is deflected in different directions as it passes through cut sections which are adjacent in the width direction through the gills, so that, in particular, turbulences of different orientations arise.
  • section sections or gill sections next to one another in the width direction have gills of different orientation.
  • the respective gill can protrude from the sheet metal part with any gill angle.
  • the respective gill angle can be, for example, between 15 ° and 40 °.
  • the gill angle is in particular 20 ° or 23 ° or 27 °.
  • the gill angle of gills adjacent cutting sections in particular adjacent in the width direction cut sections, a varying course. That means that the Gill angle of such a section section may be larger or smaller than the gill angle of the gills of an adjacent, in particular next adjacent, such section section.
  • the gill angle of gills of the sections adjacent in the width direction decreases in the width direction.
  • This decrease can in this case both stepwise, that is, with jumps, as well as continuously configured. That is, the gill angle along the width direction may decrease from one cut section to the next cut section.
  • the change in the flow exerted by the gill angle on the flow in particular a pressure drop in the flow, which increases with increasing gill angle, is taken into account, so that the influence of the gills in the width direction, in particular with regard to the pressure drop in the fluid caused by the decreasing gill angles, is taken into account becomes.
  • the gill angle decreases from the cut sections with gills of equal orientation in the width direction.
  • the gill angle of the gills of such a cut section or gill section is greater than the gill angle of the gills of such adjacent, in particular next adjacent, section section with gills of the same orientation.
  • Such a sheet metal part is advantageously produced by means of a pair of rollers.
  • at least one roller of the pair of rollers on its outer circumference on a cutting contour, with which the sheet metal part is provided with the cutting structure.
  • the cutting contour has corresponding cutting edges for introducing the cuts into the sheet metal part, wherein the cutting contour has at least two cutting sections with such cutting edges, which in the axial direction of the Roller are spaced from each other.
  • the cutting sections are separated from each other in an axially extending roll longitudinal direction of the roller, wherein between separate cutting sections cutting-free smooth sections are arranged.
  • the respective cutting edge may extend in the circumferential direction of the roller over a partial section of the roller. It is also conceivable if at least one of the cutting edges runs circumferentially.
  • the cutting edges preferably extend in the circumferential direction with interruptions and thus have interruption sections. These interruption portions form in the sheet metal cutting-free forming sections or bending sections, in which the sheet metal part is formed or bent to form the ribbed structure.
  • the cutting contour of the respective roller extends in the axial direction of the roller over a cutting contour length, wherein at least two such, spaced in the roll longitudinal direction or axial direction cutting sections have a different number of cutting edges.
  • the sheet metal part is guided through the pair of rollers. This results in said cutting sections, which are separated by the smooth regions, wherein at least two of the cut sections have a different number of cuts.
  • the width direction of the sectional structure runs along the axial direction of the roller pair or the respective roller, in particular parallel thereto.
  • the cutting contour is formed asymmetrically with respect to a longitudinal center of the cutting contour width, which is referred to below as the cutting contour width center.
  • the cutting contour width center a longitudinal center of the cutting contour width
  • Embodiments in which the sheet-metal part is introduced into the pair of rolls in such a way that a sheet-metal part edge of the sheet-metal part extends along the axial direction of the roll pair are preferred.
  • Embodiments in which the sheet-metal part is positioned before passing through the pair of rollers are advantageous in that a sheet-metal part edge middle of the sheet-metal part running along the axial direction is arranged with an offset relative to the cutting contour width center.
  • the sheet metal part is not centered, but for example eccentrically or asymmetrically guided by the pair of rollers. This makes it possible in particular to produce sheet metal parts with different sectional structure geometries by a corresponding variation of the offset. In particular, this makes it possible to produce sheet metal parts of different sectional structure geometries with the same pair of rolls.
  • sectional structure width center of the sectional structure width of the sheet metal part running along the axial direction being offset with respect to the longitudinal center of the roll.
  • the offset is advantageously at least as large as such a cutting section width.
  • the roller pair is advantageously at least as large in the axial direction as the sheet metal part width. That is, the axially extending Roller length, preferably the cutting contour width, is greater than or equal to the extent of the extending through the pair of rollers in the axial direction extending extension of the sheet metal part, in particular as the sheet metal part width.
  • Embodiments in which the offset corresponds to the minimum section width or a multiple to the minimum section section width are preferred.
  • the subsequent processing of the sheet metal part in particular the production of the gills and / or the forming of the sheet metal part to the rib structure, simplified.
  • the respective roller has such a smooth section at its edges extending in the axial direction.
  • Advantageous embodiments provide for aligning or arranging the sheet-metal parts in such a way to the pair of rolls and passing through the pair of rolls that at least one axially outward end or edge of the sheet-metal part, in particular such a longitudinal edge, corresponds to such a smooth section of the rolls. Accordingly, this end or edge is provided with such a smooth area.
  • the method for producing the sheet metal part also includes such a roll for producing the sheet metal part of the scope of this invention.
  • the roller has at least two cutting sections which have different cutting section widths in the axial direction of the roller. In this way, a corresponding oversight of the sheet metal part with cut sections of different section widths is possible.
  • a cutting section having a minimum cutting section width, wherein the cutting section width of at least one of the other cutting sections corresponds to a multiple of the minimum cutting section width.
  • the cutting edges are arranged axially equidistant at least one of the cutting sections, preferably all cutting sections.
  • the corresponding cuts in the sheet metal part, at least one such section section are arranged equidistantly.
  • a heat exchanger with such a sheet metal part belongs to the scope of this invention.
  • Such a heat exchanger in this case has a flow space through which a first fluid can flow.
  • the first fluid in this case flows in a flow direction through the flow space, wherein in the flow space at least two tubes, in particular flat tubes, are arranged, in which, separated from the first fluid, a second fluid flows. This results in a heat exchange between the first fluid and the second fluid.
  • a sheet metal part is arranged to improve the degree of heat exchange between the first fluid and the second fluid.
  • the sheet metal part is arranged such that it can be flowed through by the first fluid, wherein the width direction of the sheet metal part preferably extends along the flow direction, such that the first fluid can pass through the gills on opposite sides of the sheet metal part when flowing through the sheet metal part.
  • the sheet-metal part is designed such that the gill angles decrease in the direction of flow adjacent cutting sections adjacent in the width direction.
  • a larger gill angle leads to a larger pressure drop in the first fluid.
  • the pressure decrease in the flow direction can be reduced by the increasingly decreasing gill angle, with sufficient area for heat exchange being available through the longer flow path. With a shorter flow path less heat transfer surface is available, so that larger gill angles higher turbulence can be generated, which lead to a sufficient heat transfer despite the larger relative pressure losses.
  • a fin structure 1 of a heat exchanger 0 is shown, which is arranged between tubes 41 of the heat exchanger 0.
  • the heat exchanger 0 in this case has a flow space 40 through which a first fluid can flow in a flow direction 39 in which the tubes 41 are arranged.
  • the tubes 41 can be traversed by a second fluid, wherein the first fluid and the second fluid are fluidically separated.
  • the rib structure 1 is a sheet metal part 2, which is provided with gills 3 and formed to form the rib structure 1 in the form shown, for example. bent over, is.
  • the ribbed structure 1 is formed wave-shaped, wherein in the view shown between the gills 3 Umbiegeabête 4 of the rib structure 1 are arranged.
  • Fig. 2 shows the sheet metal part 2 after forming the rib structure 1 in section.
  • the sheet metal part 2 is provided with a cutting structure 5, which comprises a plurality of cuts 6.
  • the cuts 6 run in a Blechteill bugsscardi 7 and are spaced apart in a width direction 8.
  • the width direction 8 thus extends inclined, preferably transversely to the cuts 6.
  • the width direction 8 preferably runs along, in particular parallel to the flow direction 39.
  • the cuts 6 of the cut structure 5 are grouped in such a way that the cut structure 5 has cut sections 10 which extend in the width direction 8 By cut-free smooth areas 11 are separated from each other. Thus, such a smooth region 11 is arranged between adjacent cut sections 10.
  • the sheet metal part 2 is cut free on its outer side in the width direction 8 longitudinal edges 12 and corresponds to such a smooth region 11.
  • the sectional structure 5 extends in the width direction 8 over a sectional structure width 13.
  • the sheet metal part 2 extends in the width direction 8 over a sheet metal part width 14, which corresponds to the sectional structure width 13 in the example shown.
  • At least two adjacent section sections 10 in the width direction 8 have a different number of such sections 6.
  • the sectional structure 5 is asymmetrical with respect to a sheet metal part width center 15, indicated by a dashed line, which in the example shown corresponds to a sectional structure width center 16 of the sectional structure width 13.
  • the respective cut portion 10 extends in the width direction 8 over a cut portion width 17. It can be seen that the cut structure 5 has two types of cut portions 10.
  • the first type of cutting sections 10 ' has a minimum section width 17 '.
  • the section width 17 of at least one other section 10 corresponds to a multiple of the total length of the section 17 '.
  • the sectional structure 5 and thus the sheet metal part 2 only such a section portion 10 'of the first kind, ie with minimum section width section 17', while the remaining section sections 10 have sectional section widths 17 ", which is a multiple of the total Section section width 17 ', in the example shown correspond to twice the minimum section section width 17'.
  • the section sections 10 with the double section section width 17 "thus form section sections 10" of the second type.
  • the cut portion 10 has a smaller number of cuts 6 on the outside left than the other cut portions 10. Accordingly, the left outer gill structure 19 has a smaller number of gills 3 than the other gill portions 19.
  • the sheet metal part 2 is doing by means of in Fig. 3 shown attachment 21 produced.
  • the plant 21 comprises a pair of rollers 22 with two rollers 23, of which in Fig. 3 Viewed only the top can be seen.
  • the roller 23 is at her Outer circumference or its lateral surface provided with a cutting contour 24 which has a plurality of not fully circumferential cutting edges 25 which are arranged in an axial direction 26 of the roller 23 spaced.
  • at least one interruption section 38 is provided in the roller 23, wherein in Fig. 3 such an interruption section 38 is visible.
  • the respective interruption section 38 interrupts the cutting edges 25 in the circumferential direction.
  • the cutting edges 25 are grouped into cutting sections 27, wherein the cutting sections 27 are separated from one another in the axial direction 26 by cutting-free smooth sections 28.
  • the cutting edges 25 serve the purpose of introducing into the sheet metal part 2 associated cuts 6.
  • Fig. 3 non-visible roller 23 of the roller pair 22 provided on its outer circumference with a counter contour, which forms a negative for the cutting contour 24, such that with the cutting contour 24 corresponding cut structures 5 can be introduced into associated sheet metal parts 2.
  • the cutting contour 24 extends along the axial direction 26 over a cutting contour width 29.
  • the respective cutting portion 27 extends in the axial direction 26 over a cutting portion width 30.
  • the roller 23 has two types of such cutting portions 27, the differ with respect to their cutting section width 30.
  • a first type of the cutting portions 27 ' has a minimum cutting portion width 30'.
  • a second type of cutting portion 27 has a cutting portion width 30" that is a multiple of the minimum cutting portion width 30 ', in the present example, twice the minimum cutting portion width 30'.
  • At least two adjacent cutting sections 27 in the axial direction 26 have a different number of such cutting edges 25.
  • the cutting sections 27 with the larger cutting section width 30 have a higher number of such Cutting 25 as cutting sections 27 having a smaller cutting section width 30.
  • the cutting contour 24 is formed asymmetrically with respect to a cutting contour width center 31 of the cutting contour width 29 extending in the axial direction 26, wherein the cutting contour width center 31 is indicated by a corresponding, dashed line.
  • the sheet metal part 2 is guided in a feedthrough direction 9, which in the example shown extends transversely to the axial direction 26 of the roller 23 and transversely to the width direction 8 of the sheet metal part 2, through the pair of rollers 22.
  • the sheet metal part 2 is aligned such that the sheet metal part width 14 extends along the axial direction 26. Since the sheet metal part 2 is rectangular, thus extending transversely to the sheet metal part width 14 Blechteilin 7 of the sheet metal part 2 transverse to the axial direction 26. The sheet metal part 2 is thus guided along its length 7 by the pair of rollers 22.
  • the sheet 2, 2 " is thus guided through the pair of rolls 22 in such a way that a sheet part leading edge 35 of the sheet metal part 2 extends along the axial direction 26 of the roll pair 22, in particular parallel to the axial direction 26.
  • the sheet width center 15 therefore corresponds to a sheet metal edge center 36 the sheet metal part leading edge 35.
  • the sheet metal part width center 15 is arranged in the axial direction 26 with an offset 34 to the cutting contour width center 31.
  • the sheet metal part 2 ' is thus guided eccentrically or asymmetrically by the roller pair 22.
  • This offset 34 also provided with the reference numeral 34 ', is greater than the minimum cutting section width 30'.
  • the cutting portions 27 ' When passing the sheet metal part 2 through the pair of rollers, the cutting portions 27 'form the cutting portions 10', while the cutting portions 27 "constitute the cutting portions 10". Accordingly, the smooth sections 28 of the roller 23 correspond to the smooth regions 11 of the sheet metal part 2.
  • Fig. 4 2 shows another embodiment of the sheet-metal part 2, which is provided with the reference numeral 2 ".
  • This sheet-metal part 2" differs from the sheet-metal part 2 'in FIG Fig. 2 in particular in that the sheet-metal part width 14, which is provided with the reference numeral 14 ", is larger than the sheet-metal part width 14 'of the sheet metal part 2.
  • the sheet metal part 2" has a sectional structure 5, which in particular with respect to the number the cutting sections 10 'and 10 "and their distribution of the cutting structure 5 of the sheet metal part 2 differs' .
  • This sheet metal part 2" is also prepared by means of the roller pair 22 of the system 21. For this purpose, a passage of the sheet metal part 2 "takes place in Fig.
  • FIG. 5 Another example of such a sheet metal part 2 is in Fig. 5
  • the sheet metal part width 14 of the sheet metal part 2 "' which is provided with the reference numeral 14"', larger than the sheet metal part width 14 "of the sheet metal part 2".
  • the sheet metal part 2 '"analogous to the sheet metal part 2" and 2' by the roller pair 22 is performed.
  • this sheet metal part 2 '"in Fig. 3 shown with punk-dashed lines and provided with V.
  • the sheet metal part 2'" without offset through the pair of rollers 22 is performed.
  • the sheet metal part width center 15 '"of the sheet metal part 2'" in the axial direction 26 to the cutting contour width center 31 is not spaced or coincides with the cutting contour width center 31.
  • This also results, due to the different number of cutting edges 25 of at least two cutting sections 27 adjacent in the axial direction 26, a corresponding design of the cutting structure 5, in which at least two adjacent cutting sections 10 in the width direction 8 have a different number of such cuts 6.
  • an asymmetrical formation of the sectional structure 5 is produced with respect to the sheet metal part width center 15 '''or sectional structure width center 16'''.
  • the at least two in Width direction 8 has adjacent gill portions 19 with different number of gills 3.
  • a gill structure 20 is realized, which is asymmetrical with respect to the sheet metal part width center 15.
  • the sheet-metal parts 2 are also positioned relative to the pair of rollers 22, that in the axial direction 26 outer sheet edges 12 each correspond to at least such a smooth portion 28, such that in the region of the sheet edges 12 such smooth regions 11 are arranged.
  • Fig. 6 is the in Fig. 2 enlarged section shown again.
  • the width direction 8 extends along the flow direction 39.
  • Fig. 7 is another embodiment of the heat exchanger 0 and the sheet metal part 2 is shown.
  • next adjacent cutting sections 10 and gill sections 19 are provided with oppositely oriented gills 3.
  • Out Fig. 7 It can also be seen that the gill angle 42 of the gill sections 19 decreases in the flow direction 39.
  • the gill angle 42 also decreases, as shown in greater detail, from section sections 10 or gill sections 19 nearest in the width direction 8 or flow direction 39, with gills 3 of the same orientation in the flow direction 39.
  • the first fluid in the flow direction 39 first strikes gills 3 with a larger gill angle 42, as a result of which higher turbulences but also a greater pressure drop in the first fluid are produced.
  • the relative pressure drop in the first fluid decreases due to the decreasing gill angle 42.
  • the pressure drop in the first fluid is thus reduced, at the same time sufficient turbulence for a good heat exchange between the first fluid and the sheet metal part 2 is achieved.
EP16203917.6A 2015-12-22 2016-12-14 Élément de tôle comprenant une structure nervurée présentant une grille d'un caloporteur et procédé de fabrication Withdrawn EP3184949A3 (fr)

Applications Claiming Priority (1)

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DE102015226577.3A DE102015226577A1 (de) 2015-12-22 2015-12-22 Blechteil mit einer Kiemen aufweisenden Rippenstruktur eines Wärmeübertragers sowie Herstellungsverfahren

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EP3184949A2 true EP3184949A2 (fr) 2017-06-28
EP3184949A3 EP3184949A3 (fr) 2017-08-23

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EP (1) EP3184949A3 (fr)
JP (1) JP2017122568A (fr)
KR (1) KR20170074819A (fr)
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DE102018205308A1 (de) * 2018-04-09 2019-10-10 Mahle International Gmbh Wellrippe für einen Wärmeübertrager
JP2020034236A (ja) * 2018-08-30 2020-03-05 株式会社ティラド コルゲートフィンおよびその製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20010994U1 (de) 2000-06-21 2000-08-31 Behr Gmbh & Co Netz für einen Wärmeübertrager
EP1331464A2 (fr) 2002-01-25 2003-07-30 Behr GmbH & Co. Echangeur de chaleur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1912522A1 (de) * 1969-03-12 1970-10-01 Benteler Werke Ag Verfahren und Vorrichtung zur Herstellung von Jalousieblechen,insbesondere von Heizkoerperblechen
US3993125A (en) * 1975-11-28 1976-11-23 Ford Motor Company Heat exchange device
US4067219A (en) * 1977-03-23 1978-01-10 Bernard J. Wallis Heat exchanger fin roll
ZA832592B (en) * 1982-04-14 1984-01-25 Nippon Denso Co Method and apparatus for cutting continuous corrugated member
US5289874A (en) * 1993-06-28 1994-03-01 General Motors Corporation Heat exchanger with laterally displaced louvered fin sections
US5730214A (en) * 1997-01-16 1998-03-24 General Motors Corporation Heat exchanger cooling fin with varying louver angle
JP3855346B2 (ja) * 1997-03-17 2006-12-06 株式会社デンソー 熱交換器
CN101846479B (zh) * 2009-03-25 2012-02-22 三花丹佛斯（杭州）微通道换热器有限公司 用于换热器的翅片以及采用该翅片的换热器
JP5803768B2 (ja) * 2012-03-22 2015-11-04 株式会社デンソー 熱交換器用フィンおよび熱交換器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20010994U1 (de) 2000-06-21 2000-08-31 Behr Gmbh & Co Netz für einen Wärmeübertrager
EP1331464A2 (fr) 2002-01-25 2003-07-30 Behr GmbH & Co. Echangeur de chaleur

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JP2017122568A (ja) 2017-07-13
EP3184949A3 (fr) 2017-08-23
KR20170074819A (ko) 2017-06-30
DE102015226577A1 (de) 2017-06-22

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