EP0918199A2 - Evaporateur - Google Patents

Evaporateur Download PDF

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Publication number
EP0918199A2
EP0918199A2 EP98122073A EP98122073A EP0918199A2 EP 0918199 A2 EP0918199 A2 EP 0918199A2 EP 98122073 A EP98122073 A EP 98122073A EP 98122073 A EP98122073 A EP 98122073A EP 0918199 A2 EP0918199 A2 EP 0918199A2
Authority
EP
European Patent Office
Prior art keywords
levels
evaporator
evaporator according
refrigerant channel
planes
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
Application number
EP98122073A
Other languages
German (de)
English (en)
Other versions
EP0918199A3 (fr
EP0918199B1 (fr
Inventor
Walter Dipl.-Ing. Holz
Wolfgang Dipl.-Ing. Becker
Hans Christian Mack
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to SI9830568T priority Critical patent/SI0918199T1/xx
Publication of EP0918199A2 publication Critical patent/EP0918199A2/fr
Publication of EP0918199A3 publication Critical patent/EP0918199A3/fr
Application granted granted Critical
Publication of EP0918199B1 publication Critical patent/EP0918199B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • F28F1/14—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 longitudinally
    • F28F1/22—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 longitudinally the means having portions engaging further tubular elements
    • 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
    • F25B39/02—Evaporators
    • 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
    • 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
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators

Definitions

  • the invention relates to an evaporator for arrangement outside the cold space to be cooled and for forced ventilation using the cooled cold air forced into the cooling room promoting fan.
  • refrigerators and freezers designed as no-frost refrigeration units, they are used to generate refrigeration serving evaporator arranged outside their storage room and in generally designed as a so-called lamella evaporator.
  • this type of vaporizer are meandering evaporator tubes are provided, which for enlargement their heat transfer surface with arranged along their meander shape, slats made in the form of thin-walled sheets are provided.
  • the production such an evaporator is technically complex and costly, especially when the evaporator tubes consist of straight and curved individual tube pieces put together and soldered together.
  • the invention is based, an evaporator according to the preamble of the task Claim 1 to improve with simple constructive measures.
  • the evaporator by at least thermally conductive planes arranged approximately parallel one above the other which is used to connect at least one of the two levels refrigerant channel standing in heat-conducting contact with the levels.
  • the planes are formed by angling a one-piece board, in the angled State the planes are at least approximately parallel and are provided with the refrigerant channel arrangement.
  • Such an evaporator is not only particularly simple and inexpensive in terms of production technology producible but offers a high inherent rigidity due to its U-shaped cross-section, so that the handling of the evaporator in production is significantly easier is.
  • the channel pattern of the evaporator is particularly easy to change in terms of production technology and thus particularly adaptable to its cooling capacity as required, if according to a next preferred embodiment of the subject of the invention it is provided that the circuit board with the refrigerant channel arrangement arranged thereon is generated in the roll bond or with the Z bond process.
  • the refrigerant channel arrangement is designed as a pipe formed in turns which is fixed at the levels in thermally conductive contact.
  • an evaporator enables targeted Material combination between the pipeline carrying the refrigerant and the Levels representing heat exchange surfaces, which increases the heat transfer between the two Elements can be optimized in a simple manner.
  • the refrigerant channel arrangement on the evaporator is particularly expediently arranged, if after a next advantageous embodiment of the subject of the invention it is provided that the refrigerant channel arrangement on the mutually facing surfaces the levels is provided.
  • Such an embodiment variant is particularly space-saving with simple means and large heat exchange area in the evaporator is achieved, which to enlarge the heat exchange surface contributing wave profiles by their arrangement between the two levels in particularly intensive heat-conducting contact with the levels are feasible.
  • the levels forming the evaporator are particularly expedient if provided according to a next advantageous embodiment of the subject of the invention is that the two levels are at least largely flat are.
  • the purpose of this is to increase the surface area of the heat exchange surfaces is particularly favorable in terms of production technology in the manufacture of the evaporator can generate and which without additional measures by their immediate Connection to the heat exchange surfaces in the particularly intensive heat-conducting There is contact with the heat exchange surfaces. Furthermore, such a solution additional measures that can be brought into intensive heat-conducting contact by additional measures Avoid elements to increase the heat exchange area on the evaporator.
  • a particularly intensive swirling of the air flowing around the heat exchange surfaces and thus results in good heat transfer from the heat exchange surfaces to this air himself when according to a last preferred embodiment of the object the invention provides that the surface elements alternately from the levels exposed are arranged and both in the space between the two Layers as well as facing away from it.
  • FIG. 1 shows a first embodiment of a device for use in so-called no-frost refrigeration devices, such as refrigerators or freezers, suitable evaporator 10, which is shown three in a parallel distance one above the other, made of heat-conducting material such as aluminum or aluminum alloy levels 11 having. These are due to repeated bending of a sheet-like aluminum sheet blank generated, with the bend a substantially vertical to the levels 11 arranged wall piece 12 is created, each two adjacently arranged levels 11 interconnected in one piece.
  • no-frost refrigeration devices such as refrigerators or freezers
  • suitable evaporator 10 which is shown three in a parallel distance one above the other, made of heat-conducting material such as aluminum or aluminum alloy levels 11 having.
  • the Levels 11 are meandering on their mutually facing inner sides Equipped refrigerant channel arrangement 13 equipped, which in the roll bond process is introduced into the blank of evaporator 10, the refrigerant channel arrangement 13 on the higher and middle level 11 as well the wall piece 12 connecting the two levels 11 to one another on the outside the circuit board is provided, while the refrigerant channel arrangement 13 on the middle and lower level 11 and the wall piece used to connect them 12 is arranged on the opposite outside of the board.
  • refrigerant channel arrangements 13 are interconnected by a channel piece, not shown connected so that the three levels 11 with a continuous Refrigerant guide are covered, which are from a refrigerator of a no-frost refrigerator is supplied with refrigerant.
  • intermediate spaces 14 which for forced ventilation of levels 11 and thus to increase the heat transfer on the levels 11 to the for example by a fan circulated cooling air serve, the ventilation direction of the evaporator 10 transversely
  • the meandering refrigerant channel arrangement 13 takes place, as is exemplary in Fig. 2 is indicated by an arrow.
  • Fig. 3 shows a simplified embodiment of a further embodiment of a Evaporator 20, which has two plates, for example made of aluminum or aluminum alloy trained levels 21 which are at a parallel distance from each other are arranged.
  • the levels 21 are on their mutually facing inner sides 22 provided with a meandering refrigerant channel arrangement 23, which by, for example, made of a copper pipe, in heat-conducting contact with the level 21 standing pipeline is formed.
  • the refrigerant channel arrangements 23 are connected to each other on the inner sides 22 by a connecting piece 24, so that the evaporator 20 a continuous over its two levels 21 Has refrigerant management.
  • the levels 21 form one another due to their distance from one another Gap 25, which for the forced ventilation of the inner sides 22, in particular the refrigerant channel arrangement 23 is used, the ventilation, which to increase serves to transfer heat to the forced air, transversely to the meandering shape applied refrigerant channel arrangements 23 takes place along the levels 21, as this is shown by way of example in FIG. 4 by means of an arrow.
  • FIGS. 5 and 6 show an evaporator 30, which is similar to the evaporator 20 and like this two, like a board, arranged in parallel distance from each other executed levels 31 made of heat-conducting material, such as aluminum or the like has, which like the levels 21 on their mutually facing inner sides 32 each a meandering refrigerant channel arrangement 33 are equipped, which with each other through a connecting piece 34 to a continuous over the entire evaporator-running refrigerant guide are connected.
  • Levels 31 form one by their vertical distance between their inner sides 32
  • Intermediate space 35 which, like the intermediate space 25, is by means of a fan forced cooling air (shown symbolically in Fig.
  • the wave profile 36 is, for example, by non-cutting deformation one made of a good heat-conducting material such as aluminum, copper or the like Sheet metal plate produces and at least largely has in its corrugated form the dimensions of the levels 31.
  • FIGS. 7 and 8 show an embodiment variant designed similarly to the evaporator 30 of an evaporator 40 with two spaced apart from each other Levels 41. These are meandering on their mutually facing inner sides 42 arranged refrigerant channel arrangement 43, which via a tubular trained connector are interconnected and which of a meandering shaped, in heat-conducting contact with the levels 41 Pipeline made of a good heat-conducting material such as copper, aluminum or the like is shaped. Between the levels 41 is due to their parallel distance an interstice 45 is created, within which along the planes 41 Cooling air is forced to achieve a more favorable heat transfer in the direction of the arrow (see Fig. 8) is promoted.
  • wave profile sections 46 and 47 are provided, both of which wave profile sections 46 and 47 on the refrigerant channel arrangement 43 of the higher level 41 and on the refrigerant channel arrangement 43 of the lower level 41 bear in heat-conducting contact.
  • the wave profile sections 46 and 47 are forced to increase turbulence in the Intermediate space 45 conveyed cooling air offset from one another such that the Troughs and troughs of the strip-like cooling air conveyed in the direction of the arrow Wave profile sections run in opposite phase to each other (see Fig. 7).
  • FIG. 9 and FIG. 10 show a further embodiment of an evaporator 50, which consists of two planes 51 arranged one above the other at a parallel distance from one another thermally conductive material such as aluminum or an aluminum alloy is formed.
  • the levels 51 are each facing their inner sides 52 with one Refrigerant channel arrangement 53 in the form of a meandering shaped pipe good heat-conducting material such as copper provided, the refrigerant channel arrangements 53 through a pipe connector 54 to a continuous extending refrigerant guide for the evaporator 50 are connected.

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)
  • Freezers Or Refrigerated Showcases (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP98122073A 1997-11-21 1998-11-20 Réfrigérateur Expired - Lifetime EP0918199B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9830568T SI0918199T1 (en) 1997-11-21 1998-11-20 Refrigerator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19751768 1997-11-21
DE19751768A DE19751768A1 (de) 1997-11-21 1997-11-21 Verdampfer

Publications (3)

Publication Number Publication Date
EP0918199A2 true EP0918199A2 (fr) 1999-05-26
EP0918199A3 EP0918199A3 (fr) 2000-04-05
EP0918199B1 EP0918199B1 (fr) 2003-08-27

Family

ID=7849508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122073A Expired - Lifetime EP0918199B1 (fr) 1997-11-21 1998-11-20 Réfrigérateur

Country Status (4)

Country Link
EP (1) EP0918199B1 (fr)
DE (2) DE19751768A1 (fr)
ES (1) ES2205365T3 (fr)
SI (1) SI0918199T1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006066953A2 (fr) * 2004-12-22 2006-06-29 Stiebel Eltron Gmbh & Co. Kg Agent caloporteur et circuit de thermopompe
WO2011061070A3 (fr) * 2009-11-23 2011-11-10 BSH Bosch und Siemens Hausgeräte GmbH Appareil frigorifique comportant un dispositif de type "roll bond"
EP2818809A3 (fr) * 2013-06-26 2015-04-29 Samsung Electronics Co., Ltd Condensateur et réfrigérateur le comportant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009047005A1 (de) 2009-11-23 2011-08-04 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Wärmetauscher mit einem Kältemittelkanal
DE102010028177A1 (de) 2010-04-26 2011-10-27 BSH Bosch und Siemens Hausgeräte GmbH Rohrhalter für ein Rohr eines Wärmetauschers
SI25298A (sl) * 2016-10-07 2018-04-30 TALUM d.d. KidriÄŤevo Toplotni prenosnik

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063646A (en) * 1933-06-27 1936-12-08 Gen Electric Cooling unit
US3081608A (en) * 1959-04-23 1963-03-19 Westinghouse Electric Corp Frozen food compartment for domestic refrigerator
US3712372A (en) * 1971-03-01 1973-01-23 Oilin Corp Method and apparatus for deforming a flat on parts of metal strip-type tubing while leaving other parts undeformed
DE2516156A1 (de) * 1975-04-14 1976-10-28 Buderus Eisenwerk Kuehlbox
GB1559356A (en) * 1976-10-22 1980-01-16 Castel Mac Spa Display cabinet for deep frozen foodstuffs
EP0009458A1 (fr) * 1978-09-27 1980-04-02 Application Des Gaz Dispositif échangeur de température
EP0057749A1 (fr) * 1981-02-11 1982-08-18 Kabel- und Metallwerke Gutehoffnungshütte Aktiengesellschaft Dispositif pour l'utilisation de l'énergie ambiante pour des buts de chauffage
FR2502763A2 (fr) * 1981-03-30 1982-10-01 Bernier Jacques Installation de chauffage par pompe a chaleur
JPS60191190A (ja) * 1984-03-12 1985-09-28 Nippon Alum Mfg Co Ltd:The 熱交換器
US5186022A (en) * 1990-03-13 1993-02-16 Samsung Electronics Co., Ltd. Evaporator structure for refrigerator-freezer
US5375655A (en) * 1993-03-31 1994-12-27 Lee; Yong N. Heat sink apparatus

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063646A (en) * 1933-06-27 1936-12-08 Gen Electric Cooling unit
US3081608A (en) * 1959-04-23 1963-03-19 Westinghouse Electric Corp Frozen food compartment for domestic refrigerator
US3712372A (en) * 1971-03-01 1973-01-23 Oilin Corp Method and apparatus for deforming a flat on parts of metal strip-type tubing while leaving other parts undeformed
DE2516156A1 (de) * 1975-04-14 1976-10-28 Buderus Eisenwerk Kuehlbox
GB1559356A (en) * 1976-10-22 1980-01-16 Castel Mac Spa Display cabinet for deep frozen foodstuffs
EP0009458A1 (fr) * 1978-09-27 1980-04-02 Application Des Gaz Dispositif échangeur de température
EP0057749A1 (fr) * 1981-02-11 1982-08-18 Kabel- und Metallwerke Gutehoffnungshütte Aktiengesellschaft Dispositif pour l'utilisation de l'énergie ambiante pour des buts de chauffage
FR2502763A2 (fr) * 1981-03-30 1982-10-01 Bernier Jacques Installation de chauffage par pompe a chaleur
JPS60191190A (ja) * 1984-03-12 1985-09-28 Nippon Alum Mfg Co Ltd:The 熱交換器
US5186022A (en) * 1990-03-13 1993-02-16 Samsung Electronics Co., Ltd. Evaporator structure for refrigerator-freezer
US5375655A (en) * 1993-03-31 1994-12-27 Lee; Yong N. Heat sink apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 037 (M-453), 14. Februar 1986 (1986-02-14) & JP 60 191190 A (NIHON ARUMINIUMU KOGYO KK), 28. September 1985 (1985-09-28) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006066953A2 (fr) * 2004-12-22 2006-06-29 Stiebel Eltron Gmbh & Co. Kg Agent caloporteur et circuit de thermopompe
WO2006066953A3 (fr) * 2004-12-22 2006-12-07 Stiebel Eltron Gmbh & Co Kg Agent caloporteur et circuit de thermopompe
WO2011061070A3 (fr) * 2009-11-23 2011-11-10 BSH Bosch und Siemens Hausgeräte GmbH Appareil frigorifique comportant un dispositif de type "roll bond"
EP2818809A3 (fr) * 2013-06-26 2015-04-29 Samsung Electronics Co., Ltd Condensateur et réfrigérateur le comportant
EP3156744A1 (fr) * 2013-06-26 2017-04-19 Samsung Electronics Co., Ltd. Condenseur et réfrigérateur le comportant

Also Published As

Publication number Publication date
DE59809407D1 (de) 2003-10-02
DE19751768A1 (de) 1999-05-27
ES2205365T3 (es) 2004-05-01
EP0918199A3 (fr) 2000-04-05
SI0918199T1 (en) 2004-04-30
EP0918199B1 (fr) 2003-08-27

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