EP1957893A1 - Kältemittel-verflüssiger für ein kältegerät - Google Patents
Kältemittel-verflüssiger für ein kältegerätInfo
- Publication number
- EP1957893A1 EP1957893A1 EP06807408A EP06807408A EP1957893A1 EP 1957893 A1 EP1957893 A1 EP 1957893A1 EP 06807408 A EP06807408 A EP 06807408A EP 06807408 A EP06807408 A EP 06807408A EP 1957893 A1 EP1957893 A1 EP 1957893A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- condenser
- layer
- tube
- layers
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- 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
- 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
- F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/10—Particular layout, e.g. for uniform temperature distribution
-
- 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
- F28F2275/06—Fastening; Joining by welding
-
- 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
- F28F2275/08—Fastening; Joining by clamping or clipping
Definitions
- the present invention relates to a refrigerant condenser for a refrigeration device, which comprises a condenser tube bent into a tube layer comprising a plurality of tube loops, wherein the tube loops are fixed in position relative to one another by struts.
- the present invention relates to a method for producing a condenser for a refrigeration device with a multiply bent condenser tube.
- Such a condenser is known, for example, from DE 20 2004 017 652 U1.
- the struts are formed by wire rods which are fixed to the condenser tube by welding.
- the wire rods serve on the one hand to stabilize the multi-curved condenser tube and on the other hand support the heat dissipation from the condenser tube to the environment.
- a variety of wire rods are necessary. The welding of the wires on the condenser tube means a large production cost.
- a condenser in which first a tube layer formed with a plurality of series-connected tube loops and rectilinear portions of these tube bearings are then bent once or twice to a compact condenser with rectilinear sections in two or three layers to obtain.
- the object of the present invention is to provide a condenser of the type mentioned, in which the struts ensure a good heat transfer from the refrigerant to the environment, a support of the multi-fold condenser tube and the condenser is also inexpensive to manufacture.
- the object of the present invention is also to specify a cost-effective method for producing a condenser with a multiply bent condenser tube.
- a condenser for a refrigeration device for example, a household refrigerator or household freezer
- the usual in the art for stabilizing the pipe layer wire rods can be omitted in favor of one or more even flowed through by refrigerant pipe sections.
- the available heat to be available pipe length of the condenser is increased at a constant footprint.
- the pipe layer and the struts are portions of a continuous pipe section.
- the struts are preferably formed by pipe grinding a further pipe layer of the condenser tube.
- the refrigerant condenser therefore comprises a further, second pipe layer which, like the former pipe layer, is formed from the multiply bent condenser pipe, wherein the pipe loops of one pipe layer serve the other pipe layer as struts.
- the pipe layers are preferably connected to one another in the condenser according to the invention by welding, for example by spot welding.
- welding for example by spot welding.
- a fixing of the pipe layers is possible even without direct material connection, as it arises during welding or soldering.
- By locking or plug-in elements it is possible to fasten the pipe layers spaced apart from each other at their intersections. Temperature-induced stresses in the pipe material due to large Temperature differences of the flowing refrigerant can be avoided.
- the pipe layers viewed in plan view, intersect at at least one point and are fastened to one another at this intersection.
- each pipe loop comprises two rectilinear, generally parallel sections joined together by a curved section, i. the condenser tube is meandered within a pipe layer.
- the straight sections of the two pipe layers preferably cross each other at right angles.
- Each rectilinear section should be attached to at least one point of intersection, preferably at all of its points of intersection, with a rectilinear section of the other layer of tubes thereon.
- the first pipe layer and the second pipe layer hang together a single pipe section.
- this one pipe section must be ge or deformed to bring both pipe layers in their predetermined position to each other.
- all rectilinear pipe sections must be bent together to form the layers of the condenser, which makes the production complex and thus expensive.
- the pipe layers are integrally connected via the pipe section connecting the pipe layers. This makes it possible to form the entire condenser from a single tube by bending it. Thus, only a single type of semi-finished product is needed to produce the condenser.
- the pipe layers preferably hang together at one corner of the condenser. For a simple construction and thus a cost-effective production of the condenser is possible. - A -
- the condenser according to the invention may also comprise more than two pipe layers, for example three, which are shaped and connected in the same way, as explained above.
- the present invention also encompasses a process for producing a condenser described above, for example, which comprises the following steps:
- the tube layers preferably hang together over a tube section which is bent when the tube layers are placed on one another in step (c).
- this has the advantage that in the production of the condenser, only this one pipe section is deformed or deformed in order to bring both pipe layers into their predetermined position relative to one another.
- the first pipe layer and the second pipe layer and a pipe section connecting both pipe layers are formed integrally from the condenser tube.
- the condenser may thus be formed by molding a single tube, i. from a single part.
- the tube layers are formed as a plurality of serially connected tube loops, each tube loop comprising two parallel, rectilinear sections interconnected by a curved section.
- a multilayer structure of the condenser is easy to implement.
- the tube loops of the first tube layer and the tube loops of the second tube layer are formed in one pass and in one plane.
- the rectilinear sections of the first pipe layer are preferably formed in a length which differs from the length of the rectilinear sections of the second pipe layer. This makes it possible to adapt the condenser in its dimensions optimally to the available rear wall surface of a refrigerator.
- the tube section connecting the first tube layer and the second tube layer is preferably initially formed with a radius of curvature which is greater than the radius of curvature of the curved sections of the tube loops.
- a refrigerator which has a condenser as described above.
- This is preferably a refrigerator or freezer, preferably for a private household.
- FIG. 1 is a greatly simplified perspective rear view of a household refrigerating appliance with a back wall condenser according to the invention
- FIG. 2 is a perspective sectional view of a section of the rear wall condenser shown in FIG. 2; FIG.
- FIGS. 1 and 2 shows a first step in the production of the back wall condenser shown in FIGS. 1 and 2 in a simplified representation
- FIG. 4 shows a second step in the production of the rear wall condenser
- FIG. 5 shows a third step in the production of the rear wall condenser
- FIG. 6 shows a plug-in element for connecting pipes
- Fig. 1 shows a perspective rear view of a household refrigerating appliance.
- a compressor not shown, from which vaporous refrigerant is introduced into a located on the rear wall 2 of the body 1 refrigerant condenser 3 according to the invention.
- the refrigerant via the condenser tube designated by the reference numeral 4 heat to the environment of the refrigerator and liquefies.
- the effluent from the condenser 3, liquefied refrigerant is passed to a located in the interior of the refrigerator evaporator for cooling the interior.
- the condenser 3 is formed from a one-piece condenser tube 4 by multiple bending, which, as can be seen in particular from FIG. 2, extends over a first tube layer 5 and a second tube layer 6 which lie in two planes parallel to the rear wall of the body 1 ,
- the condenser tube 4 forms a plurality of pipe loops 8 and 8 'connected in series.
- Each pipe loop 8 or 8 ' comprises two straight, mutually parallel sections 9 and 9', which are connected by a curved portion 10 and 10 'with each other.
- the two pipe layers 5 and 6 are connected via a pipe loop 1 1 at a corner 12 of the condenser 3 together.
- the transfer of the refrigerant from the first pipe layer 5 to the second pipe layer 6 takes place.
- the straight sections 9 of the pipe layer 5 and the straight sections 9 'of the pipe layer 6 intersect in a plan view of the pipe layers 5 and 6 at a plurality of points 14, here at an angle of approximately 90 °.
- the pipe sections 9, 9 ' are connected to each other by spot welding.
- the pipe layers 5 and 6 stabilize each other.
- Conventionally used for stabilizing a pipe layer wire struts or sheets are no longer needed, since the straight sections 9 or 9 'take one of the pipe layers 5 or 6 for the other pipe layer 6 and 5, the function of the wire struts.
- the rear wall condenser 3 thus has a compact design with a large condenser tube length available for heat exchange. In contrast to the embodiment shown in FIGS.
- FIG. 1 An example of a plug-in element 20 is shown in FIG. It consists of a slightly elastic plastic and has a cylindrical shape with two intersecting, different deep slots 24, 25, which are provided to be plugged at a crossing point 14 and in each case a pipe section 9, 9 'of the two pipe layers fifth , 6, record.
- the latter In order to anchor the pipe sections in the slots 24, 25 in a form-fitting manner, the latter each have an expansion 21 or 22 at their bottom.
- the plug element 20 may be attached at all crossing points 14. Alternatively, it is possible to attach a small number of plug-in elements to the rear wall of the body and to attach the condenser by pushing in each case a pipe section 9, 9 'of the two layers 5, 6. In this case, the pipe sections 9, 9 'are preferably welded together at a plurality of crossing points 14, at least those which are not held in one of the plug-in elements 20.
- the rear wall condenser 3 described with reference to FIGS. 1 and 2 may also, but not shown, have further pipe layers which are shaped and connected in the same way as explained with reference to FIGS. 1 and 2 ,
- the back wall condenser can also have three, four or more pipe layers.
- FIGS. 3 to 5 show a method for producing the rear wall condenser 3 described in FIGS. 1 to 2.
- a one-piece pipe 4 is meandered in a plane, so that it forms a plurality of pipe loops 8 and 8 'connected in series.
- Each pipe loop 8 or 8 ' comprises two straight, mutually parallel sections 9 and 9', which are connected by a curved portion 10 and 10 'with each other.
- the condenser tube 4 is bent in tube loops 8 and 8 ', the rectilinear portions 10 and 10' have different lengths.
- the straight sections 9 of a first condenser tube part 41 which will form the first tube layer 5 of the condenser 3, are formed longer than the straight sections 9 'of a second condenser tube part 42, which will form the second tube layer 6.
- the tube loops 8 and 8 ' are formed in one pass.
- the distance between the rectilinear portions 9 and between the rectilinear portions 9 ' is made equal in both condenser tube parts 41 and 42, respectively.
- a curved section 11 is formed whose radius of curvature is greater than that of the curved sections 10, 10 '.
- Fig. 4 shows a second step of the manufacturing process.
- the first condenser tube part 41 is pivoted over the second condenser tube part 42 to form the tube layers 5, 6.
- the radius of curvature of the section 1 1 narrows after pivoting the straight sections 9, 9 'of the tube layers 5, 6 at an angle of about 90 °, as shown in Fig. 5, and the radius of curvature of the portion 1 1 is in Essentially the same as in sections 10, 10 '.
- the straight sections 9, 9 'of the pipe layers 5 and 6 are spot-welded and / or attached to a male element 20 or by bonding, e.g. with the help of a cable tie, attached to each other.
Landscapes
- 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-Conditioning For Vehicles (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005057158A DE102005057158A1 (de) | 2005-11-30 | 2005-11-30 | Kältemittel-Verflüssiger für ein Kältegerät |
PCT/EP2006/067581 WO2007062916A1 (de) | 2005-11-30 | 2006-10-19 | Kältemittel-verflüssiger für ein kältegerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1957893A1 true EP1957893A1 (de) | 2008-08-20 |
EP1957893B1 EP1957893B1 (de) | 2009-08-12 |
Family
ID=37607330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06807408A Not-in-force EP1957893B1 (de) | 2005-11-30 | 2006-10-19 | Kältemittel-verflüssiger für ein kältegerät |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1957893B1 (de) |
AT (1) | ATE439560T1 (de) |
DE (2) | DE102005057158A1 (de) |
ES (1) | ES2329719T3 (de) |
RU (1) | RU2008121858A (de) |
WO (1) | WO2007062916A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009000668A1 (de) | 2009-02-06 | 2010-08-12 | BSH Bosch und Siemens Hausgeräte GmbH | Wärmetauscher, insbesondere Verflüssiger oder Verdampfer für ein Haushaltskältegerät |
CN101629770B (zh) * | 2009-08-14 | 2011-03-09 | 海信科龙电器股份有限公司 | 一种卧式冷柜冷凝器 |
US10145621B2 (en) | 2012-02-17 | 2018-12-04 | Hussmann Corporation | Multi-zone circuiting for a plate-fin and continuous tube heat exchanger |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1280453A (en) * | 1968-06-24 | 1972-07-05 | Univ Newcastle | Heat exchangers |
DE3309923C2 (de) * | 1983-03-19 | 1985-10-31 | Rolf Dipl.-Ing. 4100 Duisburg Bähr | Wärmetauscher |
DE58903713D1 (de) * | 1988-09-10 | 1993-04-15 | Harald Klostermann | Handtuchtrockner. |
JPH0626777A (ja) * | 1992-07-10 | 1994-02-04 | Daikin Ind Ltd | 熱交換器 |
US5540276A (en) * | 1995-01-12 | 1996-07-30 | Brazeway, Inc. | Finned tube heat exchanger and method of manufacture |
DE10005668B4 (de) * | 2000-02-09 | 2005-06-16 | Kermi Gmbh | Röhrenheizkörper mit umlaufenden Heizröhren |
-
2005
- 2005-11-30 DE DE102005057158A patent/DE102005057158A1/de not_active Withdrawn
-
2006
- 2006-10-19 AT AT06807408T patent/ATE439560T1/de not_active IP Right Cessation
- 2006-10-19 WO PCT/EP2006/067581 patent/WO2007062916A1/de active Application Filing
- 2006-10-19 DE DE502006004554T patent/DE502006004554D1/de active Active
- 2006-10-19 EP EP06807408A patent/EP1957893B1/de not_active Not-in-force
- 2006-10-19 RU RU2008121858/06A patent/RU2008121858A/ru not_active Application Discontinuation
- 2006-10-19 ES ES06807408T patent/ES2329719T3/es active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007062916A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102005057158A1 (de) | 2007-05-31 |
RU2008121858A (ru) | 2010-01-10 |
ES2329719T3 (es) | 2009-11-30 |
ATE439560T1 (de) | 2009-08-15 |
EP1957893B1 (de) | 2009-08-12 |
DE502006004554D1 (de) | 2009-09-24 |
WO2007062916A1 (de) | 2007-06-07 |
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