WO2015197423A1 - Wärmetauscher für ein haushaltsgerät, verfahren zum herstellen eines solchen sowie haushaltsgerät mit einem solchen - Google Patents
Wärmetauscher für ein haushaltsgerät, verfahren zum herstellen eines solchen sowie haushaltsgerät mit einem solchen Download PDFInfo
- Publication number
- WO2015197423A1 WO2015197423A1 PCT/EP2015/063412 EP2015063412W WO2015197423A1 WO 2015197423 A1 WO2015197423 A1 WO 2015197423A1 EP 2015063412 W EP2015063412 W EP 2015063412W WO 2015197423 A1 WO2015197423 A1 WO 2015197423A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- heat sink
- shrink film
- flange
- heat
- Prior art date
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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
- F28D1/047—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 bent, e.g. in a serpentine or zig-zag
- F28D1/0477—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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
- F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
- F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
- F28D7/087—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
-
- 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
- F28F1/24—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 and extending transversely
- F28F1/32—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 and extending transversely the means having portions engaging further tubular elements
-
- 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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
-
- 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
- F28D2021/0038—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for drying or dehumidifying gases or vapours
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2235/00—Means for filling gaps between elements, e.g. between conduits within casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/12—Fastening; Joining by methods involving deformation of the elements
- F28F2275/127—Fastening; Joining by methods involving deformation of the elements by shrinking
-
- 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
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
Definitions
- Heat exchanger for a household appliance method for producing such as well as household appliance with such
- the invention relates to a heat exchanger for a domestic appliance, comprising a tube with a plurality of tube loops and a heat sink, in which the tube is inserted.
- the invention also relates to a method for producing a heat exchanger.
- the invention is particularly advantageously applicable to laundry drying equipment.
- Fig.l OA shows an oblique view of a conventional heat exchanger 101 in an oblique view.
- Fig.10B shows the heat exchanger 101 in an oblique view in an assembled state.
- the heat exchanger 101 has a cuboidal disk set 102, a plurality of U-shaped pipe loops 103, a rear-side locking plate 104, a front-side locking plate 105 and a plurality of arcuate pipe connections 106.
- the disk set 102 has along its longitudinal extension (which here coincides with an x-axis) a plurality of successively arranged slats (o. Fig.) On, which have a plane perpendicular to a (y, z) plane basic shape.
- the lamellas are metallic sheet metal parts that are firmly connected with each other, but between which there are still slot-shaped gaps (not shown).
- the disk set 102 can thus be traversed parallel to the lamellae (parallel to the (y, z) plane) of air L.
- the identically formed lamellae have here in plan view along the longitudinal extent of a rectangular basic shape, in which a plurality of holes 107 are introduced.
- the locking plates 104 and 105 have corresponding holes 108.
- the holes 107 and 108 form passages in the plate pack 102 and the locking plates 104 and 105 for performing straight pipe sections 103a of the pipe loops 103.
- the pipe loops 103 are inserted through the front side lock plate 105, the disk pack 102 and the rear locking plate 104, at least substantially only their arcuate connecting portions 103b projecting front side. Then, the U-shaped pipe loops 103 are connected at their open ends 103c by means of the arcuate pipe connections 106 into a single channel, for example soldered.
- inlet and outlet ports can be attached to the ends of the duct.
- Coolant or working fluid of the heat pump cycle can flow through the channel formed by the pipe loops 103 and the pipe connections 106 and at the same time air L (eg warm or cold process air) between the Slats of the plate pack 102 flow.
- air L eg warm or cold process air
- the heat exchanger 101 may serve as an evaporator or as a condenser of the heat cycle.
- the other outer surfaces of the fin package 102 should be as airtight as possible to an air bypass or 'bypass' air flow prevent.
- a front side 1 12 and a back side 1 13 of the disk pack 102 are sealed by the terminal lamellae and by the locking plates 104 and 105. Only through narrow annular gaps between the straight pipe sections 103a of the pipe loops 103 and the holes 107 and 108 can escape air to a small extent.
- An upper side 14 and a lower side 15 of the disk pack 102 are sealed by the fact that the disk pack 102 with its underside 15 on a closed floor area, e.g. a heat exchanger housing surrounding the heat exchanger 101 (o. Fig.) Lays tight and on its upper side 1 14 another component tightly rests, for. a cover of the heat exchanger housing.
- the locking plates 104 and 105 respectively have lateral, rearwardly and forwardly bent flange portions 104a and 105a, respectively, which serve firstly to position the heat exchanger 101 and secondly to allow possible flow of air around the heat exchanger 101 by engagement with e.g. prevent the heat exchanger housing.
- the heat exchanger 101 has the disadvantage that it can be manufactured only with high assembly costs.
- FIG 11 is an exploded view of an inexpensive heat exchanger 121 is shown as an exploded view in an oblique view.
- the heat exchanger 121 is constructed similar to the heat exchanger 101, but now has a multiple meandering curved tube 122.
- 12 shows the heat exchanger 121 in an oblique view in an assembled state.
- the tube 122 in one possible approach, has a plurality of rectilinear tubular sections 123, which are interconnected by arcuate connecting sections 124.
- the two open ends 125 of the tube 122 can be connected to corresponding connecting pieces (not shown).
- Two rectilinear pipe sections 123 and at least one connecting section 124 connecting them may form a U-shaped pipe loop section.
- the tube 122 may in one variant have been produced in one piece by forming a previously rectilinear tube of equal length. This eliminates the connection of individual pipe sections 123 and 124.
- the pipe 122 may have been composed of a plurality of previously separately manufactured pipe sections or pipe sections 123 and 124. This is manufacturing technology still significantly easier than assembling on a disk set.
- the tube 122 is also used here analogous to the heat exchanger 101 in a heat sink in the form of a rectangular plate set 126, but can no longer be inserted as in the heat exchanger 101 in round holes. Rather, each of the U-shaped tube loop sections 123, 124 has to be inserted or inserted into slots 128 in the individual lamellae 127.
- the slots 128 require comparatively large openings in the longitudinal direction of the heat exchanger 121, resulting in a no longer negligible air side flow from a front side 129 and a rear side 130 of the disk set 126 results.
- FIG. 13 shows an exploded perspective view of another heat exchanger 141 which can be produced inexpensively.
- the heat exchanger 141 is constructed similarly to the heat exchanger 121, but now has a tube 142 which is approximately twice as long in the unbent state and which has a length of several meandering curves.
- the tube 142 and thus also the heat exchanger 141 are thereby twice as wide as the tube 122 or the heat exchanger 121.
- FIG. 14 shows the heat exchanger 141 in an oblique view in an assembled state.
- the covering of the tube 142 with lamellae 127 is done by a juxtaposition of two lamellae packages 126.
- the heat sink 143 has, in other words, two heatsink parts in the form of identical lamellae packages 126.
- the disk packs 126 are held together by the pipe 142. This can also lead to an air side stream through a gap between the two disk packs 126. In order to reduce this gap, loop passages 123 routed through one of the disk packs 126, for example, may be attracted to one another by cable ties, for example.
- EP 2 358 937 B1 discloses a condensation dryer with a drying chamber for the objects to be dried, a process air circuit, a blower in the process air circuit, a heat pump in which a refrigerant circulates, with an evaporator, a compressor, a throttle and a condenser, wherein the Evaporator and / or the condenser is a heat exchanger with flat surfaces, which comprises at least one endlessly folded, flattened tube which forms a plurality of rows of mutually laterally offset meander stack.
- a heat exchanger for a domestic appliance comprising a tube with a plurality of tube loops and comprising a heat sink, in which the tube is inserted, wherein the heat sink is partially covered by a shrunk shrink film.
- This heat exchanger has the advantage that the shrunk shrink film rests firmly on the surfaces covered by the heat exchanger and seals them. In particular, so openings, such as slots or gaps, overarched by the shrink film, so that a free exchange of air through them with the environment is prevented. This in turn allows the use of heat sinks and / or tubes which can be produced particularly inexpensively and are easy to assemble.
- the shrunk shrink film may serve to hold together two or more components covered therewith, eg by positive engagement and / or traction.
- the shrink film is inexpensively available, easily shrinkable and robust and durable ausgestaltbar.
- the heat sink may be a one-piece or a multi-part heat sink.
- the heat sink may in particular consist of two or more segments or parts.
- the household appliance may in particular be a laundry care appliance, in particular a laundry drying appliance such as a tumble dryer or a combined washing / drying appliance (washer-dryer).
- the tube may be a tube made in one piece (e.g., by tube bending) or may be a tube composed of a plurality of previously separately manufactured parts.
- the tube may in particular be introduced into the heat sink as a whole (possibly even without connecting pieces), which considerably simplifies the assembly of the heat exchanger.
- the tube may e.g. Made of aluminum and / or copper, for example, it may have both aluminum and copper sections.
- the tube is designed meandering by means of the pipe loops. This allows a particularly compact design and effective heat transfer.
- a pipe loop may have at least two rectilinear pipe sections and a bent section ("connecting section") connecting them.
- the connecting portion may in particular be bent annularly. He may in particular be bent by 180 °.
- a pipe loop has two at least approximately mutually parallel straight pipe sections, which are interconnected by the connecting portion.
- the tube may therefore in particular have a plurality of, in particular parallel, straight pipe sections, which are on the front side and are back connected by curved connecting portions.
- the pipe may have several, in particular arranged in parallel, straight U-shaped pipe loops, which are connected to each other on the front or back by curved connecting portions.
- the fact that the heat sink is partially covered by a shrunken shrink film includes that the heat sink is covered by the shrink film except for at least two surfaces (e.g., an air inlet surface and an air outlet surface). These uncovered areas may e.g. be facing away from each other, e.g. parallel surfaces of a rectangular or cuboid heat sink.
- the shrink wrap is typically plastic, such as polyolefin (s), such as polyethylene or a plastic blend of polyethylene, polypropylene and other ingredients. It may be provided as a band-shaped (quasi) endless roll of predetermined width. Instead of a band-shaped film, a tubular film may also be used.
- the shrink wrap may e.g. be wrapped around the desired surfaces of the heat exchanger, optionally cut and welded together at their free end portions and following by heat, e.g. shrunk in a shrink tunnel.
- the heat exchanger may have exactly one shrink film, which allows a particularly simple production.
- the heat exchanger may also have a plurality of shrink films, e.g. for a particularly robust construction and / or for a particularly multi-faceted cover.
- the plurality of shrink films may at least partially overlap or may be laid separately from each other.
- the heat sink has a plurality of parts or heat sink segments, which are held together by means of at least one common shrink film.
- a particularly simple, yet secure attitude of the heat sink segments to each other is achieved.
- Such a multi-part heat sink can be made particularly varied and / or inexpensive.
- a particularly inexpensive production results from the use of identical parts or identically designed heat sink segments.
- at least one additional element of the heat exchanger is held non-positively by means of at least one shrink film. This is manufacturing technology particularly simple and inexpensive to implement, for example, compared to a welding or bonding.
- the at least one additional element may assume one or more functions, for example a sealing element, a spacer, a fastening means, a transport aid, etc.
- At least one additional element is designed as a carrying handle and / or as a positioning aid. It is a further embodiment that at least one additional element is a flange element, which has at least one flange projection with respect to the heat sink. The flange projection provides the flange function or acts as a flange. Thus, at least one flange overhang can be provided in a particularly simple manner, eg to avoid secondary air flows, if the flange element is provided as a sealing element.
- the heat sink is designed as at least one disk set with parallel aligned, in particular flat lamellae. Adjacent fins are arranged in a gap with each other so that air can flow between them. Such a disk set allows a particularly effective heat transfer.
- the fins may be sheet metal parts, e.g. made of steel, copper or aluminum.
- the lamellae are in particular plate-shaped, for example with a rectangular in plan view of their main surface basic shape.
- the disk set is a cuboid disk set, that has a cuboid basic shape. This allows a particularly simple production, in particular wrinkle-free occupancy with the shrink film, as well as positioning.
- the shrink film covers end faces of the at least one disk set from which project the pipe loops, and two mutually opposite, the end faces connecting surfaces.
- at least one band-shaped flange element revolves around a non-shrink-covered, e.g. a to be flowed through by air, side surface of the heat sink, in particular plate pack runs.
- a flange member allows providing a flange projection and thus a flange function on all edges of the side surface of the heat sink, e.g. top, bottom, front and back.
- At least one flange element is partially inserted between two slats. This allows a particularly secure attachment and also a torsional and Verkipp.
- the flange is inserted so with a front, comb-like portion between the two blades that corresponding tines between pipe sections, in particular straight pipe sections, pass.
- the tines may be formed straight. Adjacent tines may in particular have a distance from each other which corresponds to a distance between two adjacent rectilinear pipe sections of the pipe.
- the tines are held together in particular by a transversely extending flange projection.
- the flange elements can eg as sheet metal parts available. Such a flange element may for example be partially covered by the shrink film, for example at an edge of the flange projection.
- At least one flange is placed on a side surface of the heat sink so that it projects laterally beyond this side surface.
- the flange element may in particular completely cover the side surface of the heat sink.
- the at least one projecting area may serve as a flange overhang.
- the flange element may protrude on one side or on both sides over this side surface. This embodiment is particularly easy to implement, e.g. by placing a simple plate-shaped flange on one side or side surface of the heat sink.
- At least one additional element made of sheet metal, cardboard or plastic can be used.
- an element made of cardboard or plastic can be used.
- the object is also achieved by a method for producing a heat exchanger, comprising at least the following steps: placing at least one additional element on a heat sink so that a portion thereof projects laterally beyond the heat sink; Transferring shrinkage film not yet shrunk around the heat sink so that the at least one additional element is at least partially disposed between the heat sink and the shrink film; and shrinking the shrink film by means of a supply of thermal energy to the contour of the heat sink so that the at least one additional element is clamped therebetween.
- the method can be designed analogously to the heat exchanger and has the same advantages.
- the object is also achieved by a household appliance with at least one heat exchanger as described above.
- the household appliance can be designed analogously to the heat exchanger and has the same advantages.
- the household appliance may in particular be a laundry care appliance, in particular a laundry drying appliance such as a tumble dryer or a washer-dryer. It is a development that the household appliance has a heat pump.
- the heat exchanger may in particular represent a part of the heat pump. It may serve, for example, as an evaporator or as a condenser, for example for heat transfer between working medium conducted in the pipe or coolant of the heat pump and air flowing through the heat sink, eg process air.
- the heat exchanger is then in particular an air / fluid heat exchanger.
- FIG. 1 shows an oblique view of a heat exchanger for a household appliance according to a first embodiment in a non-finished state of manufacture
- FIG. 2 shows an oblique view of the heat exchanger according to the first embodiment after a subsequent manufacturing step
- FIG. 3 shows an oblique view of the heat exchanger according to the first embodiment after a further manufacturing step
- FIG. 4 shows an oblique view of a heat exchanger for a domestic appliance according to a second embodiment in a non-finished state of manufacture
- FIG. 5 shows an enlarged detail from FIG. 4 during a following
- Manufacturing step shows an oblique view of the heat exchanger according to the second embodiment after a further production step; 7 shows an oblique view of the heat exchanger according to the second embodiment after a further manufacturing step;
- FIG. 8 shows an oblique view of a heat exchanger for a domestic appliance according to a third embodiment in a non-finished state of manufacture
- FIG. 9 shows an oblique view of a heat exchanger for a household appliance according to the third embodiment after a subsequent manufacturing step.
- Fig. 1 shows an oblique view of a heat exchanger 1 for a domestic appliance, e.g. a heat pump tumble dryer W, in a not yet finished state of manufacture.
- the heat exchanger 1 builds here purely by way of example on the heat exchanger 141 and adds more components to it. In other words, to produce the heat exchanger 1, first, the heat exchanger 141 is provided in its assembled state.
- each serving as a flange element band 2 has been placed as an additional element at the edge, for example a metal strip.
- the band 2 sits a short distance on the other side surfaces 1 14, 1 15, 129 and 130 and extends with respect to its width perpendicular to the respectively associated side surface 1 1 1.
- the band 2 thus projects laterally (in the y-direction) over the side surfaces 14, 15, 129 and 130.
- This projecting portion of the band 2 may also be referred to as a flange projection 2a.
- FIG. 2 shows an oblique view of the heat exchanger 1 after a subsequent manufacturing step, in which now the not to be flowed through by the air L side surfaces 1 14, 1 15, 129 and 130 of the disk packs 126 and the heat sink 143 are covered by a shrink film 3.
- This may, for example, with supernatant to the back 130 toward the top 1 14, then to the front 129 and then - again with supernatant to the Rear side 130 have been placed on the bottom 1 15.
- the shrink film 3 is so wide that it covers at least the part of the band 2 which rests on the heat sink 143, in the illustrated embodiment completely covers the band 2 including the flange overhang 2a.
- connection sections 125 may, for example, be wrapped laterally by the shrink film 3 or may pass through Cutouts in the shrink film 3 be passed.
- a shrink film may be used which is open with respect to the air to be flowed through by the side surfaces L 1 1 1.
- the terminal portions 125 matching openings need to be introduced.
- the shrink film 3 shows an oblique view of the heat exchanger 1 after a further manufacturing step, in which the shrink film 3 has been shrunk by the action of heat.
- the shrink film 3 presses firmly on the side surfaces 1 14, 1 15, 129 and 130 and seals them.
- the slots 128 are also arched over by the shrinking film 3, so that a free exchange of air with the environment is prevented.
- the gap between the disk packs 126 is also sealed so.
- the shrunken shrink film 3 serves to hold the two lamination packs 126 together, e.g.
- the shrunken shrink film 3 also holds the band 2 frictionally or in a press fit on the respective disc pack 126. This is manufacturing technology particularly simple and inexpensive feasible, for example, compared to a welding or bonding.
- the heat exchanger 1 may now be ready, or it may be processed by still further steps.
- the peripheral flange portion 2a may be cut open at its corners together with the shrink film 3 resting thereon to bend portions thereof (especially straight portions), eg, front side or back.
- these portions of the flange portion 2a can be formed similarly to the flange portions 104a and 105a of the locking plates 104 and 105 of the heat exchanger 1, respectively.
- On locking plates can be dispensed with.
- 4 shows an oblique view of a heat exchanger 1 1 for a household appliance for a household appliance, such as a heat pump tumble dryer W, in a not yet finished state of manufacture.
- the heat exchanger 1 1 is similar to the heat exchanger 1 on the heat exchanger 141 and adds him more components, namely two comb-shaped flange 12 and the shrink film 3 (see Figure 6).
- the comb-shaped flange elements 12 have a front-side insertion section 13 with a plurality of flat tines 14 arranged in parallel.
- the tines 14 are rectilinear rod-shaped. Adjacent tines 14 have a distance from one another, which corresponds to a distance between rectilinear pipe sections 123 of the pipe 142.
- the tines 14 are held together by a transversely extending flange projection 15.
- the flange members 12 may be e.g. exist as sheet metal parts.
- the here seven prongs 14 can thus be inserted between the lying at an equal height rectilinear pipe sections 123 of the tube 142 and the gaps 16, and at most until the flange projection 15 strikes the tube 142. As shown in Figure 5, the tines 14 are passed between the first two fins 127 of the front 129 and the back 130 (not shown). As a result, the comb-shaped flange elements 12 are secured against rotation and tilting.
- FIG. 6 shows an oblique view of the heat exchanger 1 1 after a subsequent manufacturing step of folding and shrinking a shrink film 3 analogous to FIG.
- the flange projections 15 are covered only on a narrow edge of the shrink film 3.
- the largest part of the two laterally projecting over the disk pack 126 flange projections 15 remains free.
- the shrunken shrink film 3 can compress the two outer sipes 127 between which the prongs 14 are inserted, thereby pinching the comb-shaped flange members 12 therebetween.
- the comb-shaped flange elements 12 are attached to that of the shrink film 3 covered narrow edge of the flange projections 15 pressed against the second outermost blade 127 and so held in a tight fit.
- FIG. 7 shows the heat exchanger 1 1 after a further manufacturing step, in which now the flange projections 15 have been bent outwardly in the longitudinal extension of the heat exchanger 1 1. Thus, they are arranged analogously to the flange projections 104a and 105b and can prevent an air flow past the heat exchanger 11.
- the heat exchanger 1 1 may now be finished.
- Fig. 8 shows an oblique view of a heat exchanger 21 for a domestic appliance for a domestic appliance, e.g. a heat pump tumble dryer W, in a not yet finished state of manufacture.
- the heat exchanger 1 1 builds similar to the heat exchanger 1 on the heat exchanger 141 and adds it to other components, namely two sheets ("Flanschbleche" 22) and the shrink film 3.
- the flange plates 22 are located on the top 1 14 and on the bottom of the heat sink 143 and stand with their flange projections 23 laterally beyond the heat sink 143 and its side surfaces 1 1 1 addition. In the longitudinal extension, they occupy at least approximately the length of the heat sink 143 or the disk packs 126.
- 9 shows an oblique view of the heat exchanger 21 after a subsequent manufacturing step in which a shrink film 3 has been applied analogously to FIG. 2 and then shrunk.
- the shrink film 3 thereby holds the flange plates 22 firmly on the heat sink 143.
- it also covers the flange projections 23.
- the flange projections 23 can be bent over in a further step.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112015003020.4T DE112015003020A5 (de) | 2014-06-24 | 2015-06-16 | Wärmetauscher für ein Haushaltsgerät, Verfahren zum Herstellen eines solchen sowie Haushaltsgerät mit einem solchen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014212085.3A DE102014212085A1 (de) | 2014-06-24 | 2014-06-24 | Wärmetauscher für ein Haushaltsgerät, Verfahren zum Herstellen eines solchen sowie Haushaltsgerät mit einem solchen |
DE102014212085.3 | 2014-06-24 |
Publications (1)
Publication Number | Publication Date |
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WO2015197423A1 true WO2015197423A1 (de) | 2015-12-30 |
Family
ID=53284234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/063412 WO2015197423A1 (de) | 2014-06-24 | 2015-06-16 | Wärmetauscher für ein haushaltsgerät, verfahren zum herstellen eines solchen sowie haushaltsgerät mit einem solchen |
Country Status (2)
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DE (2) | DE102014212085A1 (de) |
WO (1) | WO2015197423A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10545000B2 (en) * | 2017-03-15 | 2020-01-28 | Denso International America, Inc. | Reinforcing clip and heat exchanger |
DE102019208619A1 (de) * | 2019-06-13 | 2020-12-17 | Siemens Aktiengesellschaft | Wärmetauscher, Verfahren zum Herstellen eines Wärmetauschers sowie Kraftwerk mit einem solchen Wärmetauscher |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH526083A (de) * | 1969-10-24 | 1972-07-31 | Ygnis Sa | Wärmetauscher |
DE3925704A1 (de) * | 1989-08-03 | 1991-02-21 | Wieland Werke Ag | Waermeaustauscher |
EP0429953A2 (de) * | 1989-12-01 | 1991-06-05 | Bosch-Siemens HausgerÀ¤te GmbH | Luftgekühlter Kondensator für einen Haushalt-Wäschetrockner |
DE4023000A1 (de) * | 1990-07-19 | 1992-01-23 | Bosch Siemens Hausgeraete | Waeschetrockner mit einem waermepumpenkreis |
DE19546489A1 (de) * | 1995-07-12 | 1997-01-16 | Bosch Gmbh Robert | Wärmeübertrager und Verfahren zur Herstellung eines Wärmeübertragers |
JP2002005558A (ja) * | 2000-06-23 | 2002-01-09 | Hitachi Ltd | 冷蔵庫及び冷蔵庫の製造方法 |
US20050086827A1 (en) * | 2003-09-05 | 2005-04-28 | Etsushi Nagae | Drying machine |
EP2358937B1 (de) | 2008-11-20 | 2012-10-10 | BSH Bosch und Siemens Hausgeräte GmbH | Kondensationstrockner mit einer wärmepumpe sowie verfahren zu seinem betrieb |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2674527A1 (de) * | 2012-06-12 | 2013-12-18 | Electrolux Home Products Corporation N.V. | Wäschebehandlungsvorrichtung mit Wärmetauschereinheit |
-
2014
- 2014-06-24 DE DE102014212085.3A patent/DE102014212085A1/de not_active Withdrawn
-
2015
- 2015-06-16 DE DE112015003020.4T patent/DE112015003020A5/de active Pending
- 2015-06-16 WO PCT/EP2015/063412 patent/WO2015197423A1/de active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH526083A (de) * | 1969-10-24 | 1972-07-31 | Ygnis Sa | Wärmetauscher |
DE3925704A1 (de) * | 1989-08-03 | 1991-02-21 | Wieland Werke Ag | Waermeaustauscher |
EP0429953A2 (de) * | 1989-12-01 | 1991-06-05 | Bosch-Siemens HausgerÀ¤te GmbH | Luftgekühlter Kondensator für einen Haushalt-Wäschetrockner |
DE4023000A1 (de) * | 1990-07-19 | 1992-01-23 | Bosch Siemens Hausgeraete | Waeschetrockner mit einem waermepumpenkreis |
DE19546489A1 (de) * | 1995-07-12 | 1997-01-16 | Bosch Gmbh Robert | Wärmeübertrager und Verfahren zur Herstellung eines Wärmeübertragers |
JP2002005558A (ja) * | 2000-06-23 | 2002-01-09 | Hitachi Ltd | 冷蔵庫及び冷蔵庫の製造方法 |
US20050086827A1 (en) * | 2003-09-05 | 2005-04-28 | Etsushi Nagae | Drying machine |
EP2358937B1 (de) | 2008-11-20 | 2012-10-10 | BSH Bosch und Siemens Hausgeräte GmbH | Kondensationstrockner mit einer wärmepumpe sowie verfahren zu seinem betrieb |
Also Published As
Publication number | Publication date |
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DE112015003020A5 (de) | 2017-03-23 |
DE102014212085A1 (de) | 2015-12-24 |
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