EP0918199B1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
EP0918199B1
EP0918199B1 EP98122073A EP98122073A EP0918199B1 EP 0918199 B1 EP0918199 B1 EP 0918199B1 EP 98122073 A EP98122073 A EP 98122073A EP 98122073 A EP98122073 A EP 98122073A EP 0918199 B1 EP0918199 B1 EP 0918199B1
Authority
EP
European Patent Office
Prior art keywords
planes
frost
evaporator
appliance according
refrigerating appliance
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.)
Expired - Lifetime
Application number
EP98122073A
Other languages
German (de)
English (en)
Other versions
EP0918199A2 (fr
EP0918199A3 (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 a Nofrost refrigeration device according to the preamble of Claim 1.
  • Such Device is e.g. from US-A-3 081 608.
  • refrigerators and freezers designed as no-frost refrigerators, they are used for refrigeration serving evaporator outside their storage room and arranged in the generally designed as a so-called finned evaporator.
  • meandered evaporator tubes are provided, which for enlargement their heat-transferring surface arranged along their meandering shape, are provided in the form of thin-walled sheets produced lamellae.
  • the production Such evaporator is expensive to manufacture and expensive, in particular, when the evaporator tubes of straight and curved single pipe pieces assembled and soldered together.
  • the invention is based on the object, a refrigerator according to the preamble of Claim 1 with simple constructive measures to improve.
  • platinum-like levels Due to the platinum-like levels are elaborate without manufacturing technology Measures, eg. B. in the form of slats to bring in approach, cost produced large heat exchange surfaces, by their parallel arrangement over each other At the same time a targeted cooling capacity is possible with low space requirements.
  • the platinum-like levels open up the opportunity to increase the cooling capacity of the evaporator with simple production engineering measures to increase the arrangement density of the refrigerant channel arrangement.
  • the planes are formed by bending an integral board, in whose angled State the planes are at least approximately parallel and are provided with the refrigerant channel arrangement.
  • Such an evaporator is not only production technology particularly simple and inexpensive producible but offers by its U-shaped cross section a high inherent rigidity, so that the handling of the evaporator in production significantly easier is.
  • Manufacturing technology particularly easy to change the channel image of the evaporator and thus particularly purposefully adaptable to its required cooling capacity, when according to a next preferred embodiment of the subject invention is provided, which is the board with the refrigerant channel arrangement arranged thereon produced in the roll bond or Z-Bond method.
  • a particularly cost-effective design for an evaporator results when after a next preferred embodiment of the subject of the invention is provided, in that the refrigerant channel arrangement is designed as a coiled tubing is, which is set at the levels in thermally conductive contact.
  • an evaporator allows a targeted Material combination between the pipeline carrying the refrigerant and the Heat exchange surfaces representing levels, whereby the heat transfer between the two Elements can be optimized in a simple manner.
  • the refrigerant channel arrangement on the evaporator when according to a next advantageous embodiment of the subject invention is provided that the refrigerant channel arrangement on the mutually facing surfaces the levels is provided.
  • the two planes exposed surface elements arranged out of its surface exhibit.
  • a particularly intensive turbulence of the air flowing around the heat exchange surfaces gives good heat transfer from the heat exchange surfaces to this air when, according to a last preferred embodiment of the subject the invention is provided that the surface elements alternately from the planes are exposed and placed both in the space between the two Plains as well as facing away from it are directed outwards.
  • FIG. 1 shows a first embodiment of one for use in so-called no-frost refrigerators, as refrigerators or freezers, suitable evaporator 10 is shown which three superposed at a parallel distance, made of thermally conductive material such as aluminum or aluminum alloys made levels 11 having. These are due to repeated bending of a platinum-like aluminum sheet blank produced by the angled an essentially perpendicular to the planes 11 arranged wall piece 12 is provided, which two in each case adjacently arranged planes 11 integrally connects to each other.
  • the Layers 11 are at their facing inner sides with a meandering equipped refrigerant channel assembly 13, which in Rollbondbacter is introduced into the platinum-like blank of the evaporator 10, wherein the refrigerant channel arrangement 13 at the higher and middle level 11 and the two levels 11 interconnecting wall piece 12 on the one outer side the board is provided while the refrigerant channel assembly 13 at the middle and lower level 11 and serving to connect wall piece 12 is arranged on the opposite outside of the board.
  • the at the middle level 11 on both sides of this board section provided refrigerant channel arrangements 13 are interconnected by a not-shown channel piece connected, so that the three levels 11 with a continuous running Refrigerant guide are covered, which of a chiller of a no-frost refrigerator supplied with refrigerant.
  • Fig. 3 shows a simplified schematic representation of another embodiment of a Evaporator 20, which two platinum-like example of aluminum or aluminum alloy formed planes 21, which in parallel distance from each other are arranged.
  • the planes 21 are at their inner sides facing each other 22 is provided with a meandering applied refrigerant channel arrangement 23, which by, for example, made of a copper tube, in heat-conducting contact with the levels 21 standing pipeline is formed.
  • the refrigerant channel assemblies 23 on the inner sides 22 are interconnected by a connecting piece 24, so that the evaporator 20 is a continuous over its two planes 21 extending Has refrigerant guide.
  • the planes 21 form one another by their distance from one another Gap 25, which for forced ventilation of the inner sides 22, in particular the refrigerant channel assembly 23 is used, the ventilation, which for increasing the heat transfer to the forced circulating air is used, across the meandering applied refrigerant channel assemblies 23 along the planes 21 takes place, 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 is like this two in parallel spaced, platinum-like running planes 31 of heat-conducting material, such as aluminum or the like which, like the planes 21 on their mutually facing inner sides 32 with each a meandering refrigerant channel arrangement 33 are equipped, which interconnected by a connector 34 to a continuous over the entire evaporator extending refrigerant duct are connected.
  • the levels 31 form by their vertical distance from each other between their inner sides 32 a Interspace 35, which like the gap 25 by a means of a fan forcibly circulated cooling air (symbolically represented in Fig.
  • the wave profile 36 is, for example, by chipless deformation a made of good heat conducting material such as aluminum, copper or the like Sheet metal produced and has in its corrugated form, at least as far as possible the dimensions of the levels 31.
  • FIGS. 7 and 8 show a variant embodiment similar to that of the evaporator 30 an evaporator 40 having two spaced apart in parallel Layers 41. These are on their mutually facing inner sides 42, each with a meandering arranged refrigerant channel assembly 43 is provided, which via a tube-like trained connector are interconnected and which from a meandering, in heat-conducting contact with the planes 41 standing Pipe made of good heat conducting material such as copper, aluminum or the like is shaped. Between the planes 41 is by their parallel distance to each other a gap 45 is generated within which along the levels 41st Cooling air to achieve a more favorable heat transfer forcibly in the direction of arrow (see Fig. 8) is conveyed.
  • wave profile sections 46 and 47 are provided, of which both wave profile sections 46 and 47 on the refrigerant channel arrangement 43 of the higher level 41 and on the refrigerant channel assembly 43 of the lower level 41 lie in thermally conductive contact.
  • the wave profile sections 46 and 47 are to increase the turbulence of forcibly in the Interspace 45 promoted cooling air offset from each other so arranged that the Wave troughs and troughs of the conveyed in the arrow direction cooling air arranged strip-like Wave profile sections opposite to each other (see Fig. 7).
  • FIGS. 9 and 10 show a further embodiment of an evaporator 50, which consists of two in parallel spaced superimposed planes 51 of good thermally conductive material such as aluminum or an aluminum alloy is formed.
  • the levels 51 are each facing their inner sides 52 each with a Refrigerant channel assembly 53 in the form of a meandering shaped pipeline good heat conducting material such as copper, wherein the refrigerant channel arrangements 53 through a pipe connector 54 to a continuous extending refrigerant guide for the evaporator 50 are connected.
  • the space 56 is to achieve a promoted more favorable heat transfer using a fan forcibly cooling air, which in addition due to the lobes 55 exposed in different directions is swirled, so that the turbulence of the forced into the space promoted cooling air increases and in this way the heat transfer in addition is improved.

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)

Claims (9)

  1. Appareil frigorifique sans givre avec un espace frigorifique et un évaporateur disposé à l'extérieur de l'espace frigorifique à refroidir pour la ventilation par force à l'aide d'un ventilateur acheminant l'air froid refroidi par force dans l'espace frigorifique, l'évaporateur étant formé par deux plans (21, 31, 41, 51) disposés l'un au-dessus de l'autre approximativement parallèlement, thermiquement conducteurs sur lesquels s'étend au moins un canal d'agent réfrigérant (23, 33, 43, 53) reliant ensemble les deux plans en termes de technique de froid, se trouvant en contact thermiquement conducteur avec les plans, caractérisé en ce que les plans (21, 31, 41, 51) sont formés en pliant en U une plaque, laquelle présente dans l'état plié une section transversale au moins approximativement en forme de U et qui sont dotés au moins sur une de leurs surfaces de plaque de grande surface d'un canal d'agent réfrigérant (23, 33, 43, 53).
  2. Appareil frigorifique sans givre selon la revendication 1, caractérisé en ce que le canal d'agent réfrigérant (23, 33, 43, 53) est produit sur la plaque dans un procédé de liaison par laminage.
  3. Appareil frigorifique sans givre selon la revendication 1 ou 2, caractérisé en ce que le canal d'agent réfrigérant (23, 33, 43, 53) est réalisé dans un conduite formée en enroulements, laquelle est fixée en contact thermiquement conducteur sur les plans (21, 31, 41, 51) .
  4. Appareil frigorifique sans givre selon l'une des revendications 1 à 3, caractérisé en ce que le canal d'agent réfrigérant (23, 33, 43, 53) est prévu sur les surfaces externes orientées l'une par rapport à l'autre des plans (21, 31, 41, 51).
  5. Appareil frigorifique sans givre selon l'une des revendications 1 à 4, caractérisé en ce qu'entre les plans disposés l'un au-dessus de l'autre parallèlement (31, 41) est disposé un profil ondulé (36, 46, 47) se trouvant en contact thermiquement conducteur avec eux.
  6. Appareil frigorifique sans givre selon la revendication 5, caractérisé en ce qu'entre les deux plans (41) est déplacé un autre profil ondulé (47) en opposition de phase au profil ondulé (46).
  7. Appareil frigorifique sans givre selon l'une des revendications 1 à 6, caractérisé en ce que les deux plans (21, 31, 41) sont conçus en étant à surface fermée de façon extrêmement étendue.
  8. Appareil frigorifique sans givre selon l'une des revendications 1 à 6, caractérisé en ce que les deux plans (51) présentent des éléments de surface (55) disposés en étant fabriqués à partir de leur surface.
  9. Appareil frigorifique sans givre selon la revendication 8, caractérisé en ce que les éléments de surface (55) sont disposés en étant fabriqués alternativement à partir des plans (51) et sont orientés vers l'extérieur non seulement dans l'espace intermédiaire (56) situé entre les deux plans (51) mais aussi en y étant opposés.
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 EP0918199A2 (fr) 1999-05-26
EP0918199A3 EP0918199A3 (fr) 2000-04-05
EP0918199B1 true 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 (2)

* 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
DE102009047003A1 (de) * 2009-11-23 2011-09-22 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einer Rollbond-Anordnung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4808732B2 (ja) * 2004-12-22 2011-11-02 シユテイーベル・エルトロン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・コンパニー・コマンデイトゲゼルシヤフト ヒートエクスチェンジャおよびヒートポンプ回路
DE102010028177A1 (de) 2010-04-26 2011-10-27 BSH Bosch und Siemens Hausgeräte GmbH Rohrhalter für ein Rohr eines Wärmetauschers
KR20150001030A (ko) * 2013-06-26 2015-01-06 삼성전자주식회사 응축기 및 이를 갖는 냉장고
SI25298A (sl) * 2016-10-07 2018-04-30 TALUM d.d. KidriÄŤevo Toplotni prenosnik

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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
DE7731904U1 (de) * 1976-10-22 1978-02-09 Castel Mac S.P.A., Castelfranco Veneto, Treviso (Italien) Kuehlvitrine fuer kalt zu geniessende nahrungsmittel
FR2437595A1 (fr) * 1978-09-27 1980-04-25 Applic Gaz Sa Echangeur de temperature et refrigerateur comportant un tel dispositif
DE3104775A1 (de) * 1981-02-11 1982-09-02 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover "vorrichtung zur nutzung von umgebungsenergie zu heizzwecken"
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
JPH0651758U (ja) * 1990-03-13 1994-07-15 三星電子株式会社 冷蔵庫用蒸発器構造
US5375655A (en) * 1993-03-31 1994-12-27 Lee; Yong N. Heat sink apparatus

Cited By (2)

* 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
DE102009047003A1 (de) * 2009-11-23 2011-09-22 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einer Rollbond-Anordnung

Also Published As

Publication number Publication date
EP0918199A2 (fr) 1999-05-26
EP0918199A3 (fr) 2000-04-05
DE59809407D1 (de) 2003-10-02
DE19751768A1 (de) 1999-05-27
SI0918199T1 (en) 2004-04-30
ES2205365T3 (es) 2004-05-01

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