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US20070023170A1 - Tube/plate condenser for refrigerators and/or freezers - Google Patents

Tube/plate condenser for refrigerators and/or freezers Download PDF

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Publication number
US20070023170A1
US20070023170A1 US11/490,772 US49077206A US2007023170A1 US 20070023170 A1 US20070023170 A1 US 20070023170A1 US 49077206 A US49077206 A US 49077206A US 2007023170 A1 US2007023170 A1 US 2007023170A1
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US
United States
Prior art keywords
tube
accordance
plate condenser
sheet metal
carrier panel
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.)
Abandoned
Application number
US11/490,772
Inventor
Thomas Blersch
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen 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 Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Assigned to LIEBHERR-HAUSGERAETE OCHSENHAUSEN GMBH reassignment LIEBHERR-HAUSGERAETE OCHSENHAUSEN GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BLERSCH, THOMAS
Publication of US20070023170A1 publication Critical patent/US20070023170A1/en
Abandoned 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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • 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
    • F28F1/14—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
    • 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
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • 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
    • F25B2339/04—Details of condensers
    • F25B2339/045—Condensers made by assembling a tube on a plate-like element or between plate-like elements
    • 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
    • F28D2021/007—Condensers

Definitions

  • the present invention relates to a tube/plate condenser for a cooling circuit of a refrigerator and/or freezer comprising a tube preferably bent in a meandering shape in which the cooling circuit medium can be condensed and a carrier panel made of sheet metal to which the tube is secured.
  • a tube/plate condenser of this type for refrigerators and/or freezers is known, for example, from DE 20 2004 017 652 U1.
  • Rear wall condensers of this type typically consist of a steel panel onto which the steel tube bent in a meandering shape is mounted and secured, with both the steel panel and the steel tube being lacquered as a rule. Since the heat dissipation is limited with condensers of this type, the tube bent in a meandering shape must have a correspondingly large length and the carrier panel of sheet metal serving the heat dissipation to ambient must have a correspondingly large surface so that the refrigerant evaporated in the evaporator of the refrigeration circuit is sufficiently cooled when flowing through the tube and is thus condensed again.
  • the named DE 20 2004 017 652 U1 proposes, for the improvement of the heat dissipation, providing the condenser tube moving to and fro in a meandering manner with a specific bending radius and thus giving the straight sections a predetermined spacing since a more uniform heat radiation should hereby be achieved over the surface of the carrier panel.
  • the heat dissipation nevertheless remains limited and the required carrier panel surface and tube length thus remains considerable.
  • the present invention is based on the consideration that the heat dissipation of the evaporator can be effectively improved by an increase of the thermal conductivity of the carrier panel, on the one hand, and by an increase of the heat transfer from the condenser tube to the sheet metal of the carrier panel, on the other hand, with both being able to be achieved in a particular degree by a specific material pairing between the material of the carrier panel and the material of the tube.
  • the carrier panel consists of an aluminum sheet, whereas the tube is a steel tube or an aluminum tube. A considerably improved heat dissipation of the condenser can hereby be achieved over the previously typically used steel tubes on sheet steel carrier panels.
  • the aluminum sheet has a much better thermal conductivity over the previously customary steel sheets.
  • a very good heat transfer from the tubes to the carrier panel can be achieved by the material pairing selected.
  • the required tube length and the correspondingly required carrier panel area can hereby be considerably reduced overall so that the condenser has a smaller construction overall. In addition, its weight can be considerably reduced.
  • the tube can in particular be connected to the carrier panel in a shape matched manner and/or in a force transmitting manner.
  • the carrier panel can have bent tube reception passages into which the tube is inserted such that the aluminum sheet snugly fits around the tube areally.
  • a very good heat transfer between the tube and the aluminum sheet is hereby achieved.
  • time-consuming joining steps such as aluminum welding or soldering can be avoided, whereby the condenser can be produced more cost favorably.
  • the tube reception passages advantageously fit snugly around the tube by more than 180° in cross-section such that the heat transfer area, and so the heat dissipation, is particularly large.
  • a firm connection between the sheet metal and the tube is hereby ensured.
  • a press fit or clamp fit is advantageously provided between the tube reception passages and the tube.
  • the tube can in this process generally be differently received in the tube reception passages.
  • the tube can be rolled into the aluminum sheet in the region of the tube reception passages.
  • the carrier panel can generally be made of one single sheet of metal, with it alternatively being possible, however, to assemble the carrier panel from a plurality of sheet metal parts.
  • the carrier panel can in particular consist of a plurality of strips of sheet metal overlapping one another when the tube is not rolled into the aluminum sheet, but is rather received between overlapping strips of sheet metal of the carrier panel. A complete surrounding of the tube by the material of the carrier panel can hereby be achieved.
  • a steel tube is used as the condenser tube, this can generally be a bare steel tube without a surface coating or surface treatment.
  • a particularly favorable material pairing also results when galvanized steel tubing is used. The same applies to tinned steel tubing. A particularly favorable heat transfer can also hereby be achieved.
  • the carrier panel made of aluminum sheet and/or the condenser tube can remain unlacquered in accordance with an embodiment of the invention.
  • a lacquer coating can alternatively be provided.
  • FIG. 1 a perspective representation of a tube/plate condenser for the cooling circuit of a refrigerator and/or freezer in accordance with a preferred embodiment of the invention
  • FIG. 2 a section-wise cross-section through the condenser of FIG. 1 which shows two tube sections of the condenser rolled into the sheet metal of the carrier panel;
  • FIG. 3 a section-wise cross-section through the condenser of FIG. 1 , with the tube pieces being enclosed between overlapping strips of sheet metal of the carrier panel in accordance with an alternative embodiment.
  • the condenser 1 shown in FIG. 1 comprises a substantially plate-shaped carrier panel 2 and a condenser tube 3 which is connected thereto, is guided to and fro in a meandering form and has an inlet 4 and an outlet 5 .
  • the refrigerant gives off the absorbed heat via the condenser tube 3 to the carrier panel 2 and via this to ambient so that the evaporator medium or the refrigerant is cooled down and condensed again until it is again introduced into the subsequent functional unit of the refrigeration circuit via the outlet 5 .
  • the carrier panel 2 is made of a metal sheet of aluminum or of an aluminum alloy.
  • the tube 3 can likewise consist of aluminum or of an aluminum alloy in accordance with an embodiment of the invention.
  • a steel tube which can be galvanized in accordance with one embodiment of the invention or tinned in accordance with another alternative embodiment of the invention, can be used as the condenser tube 3 .
  • the condenser tube 3 is not simply placed onto the carrier panel 2 of the condenser.
  • the carrier panel 2 rather has tube reception passages 6 which extend substantially in a straight line, into which the condenser tube 3 is inserted and in which the condenser tube 3 is snugly surrounded by the sheet metal of the carrier panel 2 such that a large contact area results between the carrier panel 2 and the condenser tube 3 , on the one hand, and the condenser tube 3 is held in a shape matched and/or force transmitting manner in the tube reception passages 6 , on the other hand.
  • the tube 3 is rolled into the sheet metal of the carrier panel 2 .
  • the sheet metal of the carrier panel 2 is folded or bent in a channel-like manner in the region of each tube reception passage 6 so that the sheet metal of the carrier panel 2 surrounds the tube 3 in a range of approximately 270°.
  • the carrier panel 2 is substantially produced from an integral aluminum sheet.
  • the carrier panel 2 is produced from a plurality of mutually overlapping sheet metal strips, with a respective tube reception passage 6 being formed between two overlapping sheet metal strips 7 and 8 and the corresponding condenser tube piece being completely surrounded by the sheet metal of the carrier panel 2 (cf. FIG. 3 ).

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  • 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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The present invention relates to a tube/plate condenser for a cooling circuit of a refrigerator and/or freezer comprising a bent tube in which the cooling circuit medium can be condensed as well as a carrier panel of sheet metal to which the tube is secured. In accordance with the invention, the tube/plate condenser is characterized in that the carrier panel consists of an aluminum sheet and the tube is a steel tube. The present invention further relates to a refrigerator and/or freezer comprising a tube/plate condenser of this type.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates to a tube/plate condenser for a cooling circuit of a refrigerator and/or freezer comprising a tube preferably bent in a meandering shape in which the cooling circuit medium can be condensed and a carrier panel made of sheet metal to which the tube is secured.
  • A tube/plate condenser of this type for refrigerators and/or freezers is known, for example, from DE 20 2004 017 652 U1. Rear wall condensers of this type typically consist of a steel panel onto which the steel tube bent in a meandering shape is mounted and secured, with both the steel panel and the steel tube being lacquered as a rule. Since the heat dissipation is limited with condensers of this type, the tube bent in a meandering shape must have a correspondingly large length and the carrier panel of sheet metal serving the heat dissipation to ambient must have a correspondingly large surface so that the refrigerant evaporated in the evaporator of the refrigeration circuit is sufficiently cooled when flowing through the tube and is thus condensed again. The named DE 20 2004 017 652 U1 proposes, for the improvement of the heat dissipation, providing the condenser tube moving to and fro in a meandering manner with a specific bending radius and thus giving the straight sections a predetermined spacing since a more uniform heat radiation should hereby be achieved over the surface of the carrier panel. The heat dissipation nevertheless remains limited and the required carrier panel surface and tube length thus remains considerable.
    • SUMMARY OF THE INVENTION
  • Starting from this, it is the object underlying the invention to provide an improved condenser of this named type which avoids disadvantages of the prior art and further develops the latter in an advantageous manner. A further improved heat dissipation and/or a smaller construction size of the condenser should in particular be achieved.
  • This object is solved in accordance with the invention by a condenser herein. Preferred aspects of the invention are also the subject of the invention herein.
  • The present invention is based on the consideration that the heat dissipation of the evaporator can be effectively improved by an increase of the thermal conductivity of the carrier panel, on the one hand, and by an increase of the heat transfer from the condenser tube to the sheet metal of the carrier panel, on the other hand, with both being able to be achieved in a particular degree by a specific material pairing between the material of the carrier panel and the material of the tube. In accordance with the invention, the carrier panel consists of an aluminum sheet, whereas the tube is a steel tube or an aluminum tube. A considerably improved heat dissipation of the condenser can hereby be achieved over the previously typically used steel tubes on sheet steel carrier panels. On the one hand, the aluminum sheet has a much better thermal conductivity over the previously customary steel sheets. On the other hand, a very good heat transfer from the tubes to the carrier panel can be achieved by the material pairing selected. The required tube length and the correspondingly required carrier panel area can hereby be considerably reduced overall so that the condenser has a smaller construction overall. In addition, its weight can be considerably reduced.
  • The tube can in particular be connected to the carrier panel in a shape matched manner and/or in a force transmitting manner. In accordance with an advantageous embodiment of the invention, the carrier panel can have bent tube reception passages into which the tube is inserted such that the aluminum sheet snugly fits around the tube areally. On the one hand, a very good heat transfer between the tube and the aluminum sheet is hereby achieved. On the other hand, time-consuming joining steps such as aluminum welding or soldering can be avoided, whereby the condenser can be produced more cost favorably.
  • The tube reception passages advantageously fit snugly around the tube by more than 180° in cross-section such that the heat transfer area, and so the heat dissipation, is particularly large. In addition, a firm connection between the sheet metal and the tube is hereby ensured. A press fit or clamp fit is advantageously provided between the tube reception passages and the tube.
  • The tube can in this process generally be differently received in the tube reception passages. In accordance with an advantageous embodiment of the invention, the tube can be rolled into the aluminum sheet in the region of the tube reception passages. In this process, the carrier panel can generally be made of one single sheet of metal, with it alternatively being possible, however, to assemble the carrier panel from a plurality of sheet metal parts.
  • The carrier panel can in particular consist of a plurality of strips of sheet metal overlapping one another when the tube is not rolled into the aluminum sheet, but is rather received between overlapping strips of sheet metal of the carrier panel. A complete surrounding of the tube by the material of the carrier panel can hereby be achieved.
  • If a steel tube is used as the condenser tube, this can generally be a bare steel tube without a surface coating or surface treatment. Alternatively, a particularly favorable material pairing also results when galvanized steel tubing is used. The same applies to tinned steel tubing. A particularly favorable heat transfer can also hereby be achieved.
  • In contrast to the prior art, the carrier panel made of aluminum sheet and/or the condenser tube can remain unlacquered in accordance with an embodiment of the invention. Optionally, however, a lacquer coating can alternatively be provided.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The invention will be explained in more detail in the following with reference to a preferred embodiment and to associated drawings. There are shown in the drawings:
  • FIG. 1: a perspective representation of a tube/plate condenser for the cooling circuit of a refrigerator and/or freezer in accordance with a preferred embodiment of the invention;
  • FIG. 2: a section-wise cross-section through the condenser of FIG. 1 which shows two tube sections of the condenser rolled into the sheet metal of the carrier panel; and
  • FIG. 3 a section-wise cross-section through the condenser of FIG. 1, with the tube pieces being enclosed between overlapping strips of sheet metal of the carrier panel in accordance with an alternative embodiment.
    • DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The condenser 1 shown in FIG. 1 comprises a substantially plate-shaped carrier panel 2 and a condenser tube 3 which is connected thereto, is guided to and fro in a meandering form and has an inlet 4 and an outlet 5. When flowing through the tube guided in a meandering manner, the refrigerant gives off the absorbed heat via the condenser tube 3 to the carrier panel 2 and via this to ambient so that the evaporator medium or the refrigerant is cooled down and condensed again until it is again introduced into the subsequent functional unit of the refrigeration circuit via the outlet 5.
  • The carrier panel 2 is made of a metal sheet of aluminum or of an aluminum alloy. The tube 3 can likewise consist of aluminum or of an aluminum alloy in accordance with an embodiment of the invention. Alternatively, a steel tube, which can be galvanized in accordance with one embodiment of the invention or tinned in accordance with another alternative embodiment of the invention, can be used as the condenser tube 3.
  • As FIGS. 2 and 3 show, the condenser tube 3 is not simply placed onto the carrier panel 2 of the condenser. The carrier panel 2 rather has tube reception passages 6 which extend substantially in a straight line, into which the condenser tube 3 is inserted and in which the condenser tube 3 is snugly surrounded by the sheet metal of the carrier panel 2 such that a large contact area results between the carrier panel 2 and the condenser tube 3, on the one hand, and the condenser tube 3 is held in a shape matched and/or force transmitting manner in the tube reception passages 6, on the other hand.
  • In the embodiment in accordance with FIG. 2, the tube 3 is rolled into the sheet metal of the carrier panel 2. As FIG. 2 shows, the sheet metal of the carrier panel 2 is folded or bent in a channel-like manner in the region of each tube reception passage 6 so that the sheet metal of the carrier panel 2 surrounds the tube 3 in a range of approximately 270°. In the embodiment in accordance with FIG. 2, the carrier panel 2 is substantially produced from an integral aluminum sheet.
  • In the embodiment in accordance with FIG. 3, the carrier panel 2 is produced from a plurality of mutually overlapping sheet metal strips, with a respective tube reception passage 6 being formed between two overlapping sheet metal strips 7 and 8 and the corresponding condenser tube piece being completely surrounded by the sheet metal of the carrier panel 2 (cf. FIG. 3).

Claims (20)

1. A tube/plate condenser for a cooling circuit of a refrigerator and/or freezer comprising
a bent tube (3) in which the cooling circuit medium can be condensed, and
a carrier panel (2) of sheet metal to which the tube (3) is secured,
wherein the carrier panel (2) is constituted by an aluminum sheet and the tube (3) is a steel tube.
2. A tube/plate condenser for a cooling circuit of a refrigerator and/or freezer comprising
a bent tube (3) in which the cooling circuit medium can be condensed , and
a carrier panel (2) of sheet metal to which the tube (3) is secured, wherein the carrier panel (2) is constituted by an aluminum sheet and the tube (3) is an aluminum tube.
3. A tube/plate condenser in accordance with claim 1, wherein the tube (3) is connected to the carrier panel (2) in a shape matched or force transmitting manner and is in particular held by its sheet metal.
4. A tube/plate condenser in accordance with claim 1, wherein the carrier panel (2) comprises bent tube reception passages (6) into which the tube (3) is inserted and in which the tube (3) is snugly surrounded by the sheet metal areally.
5. A tube/plate condenser in accordance with claim 4, wherein the tube reception passages (6) snugly surround the tube (3) by more than 180° in cross-section.
6. A tube/plate condenser in accordance with claim 4, wherein the tube (3) is rolled into the sheet metal in the region of the tube reception passages (6).
7. A tube/plate condenser in accordance with claim 4, wherein the tube (3) is enclosed between overlapping sheet metal strips (7, 8) of the carrier panel (2) in the region of the tube reception passages (6).
8. A tube/plate condenser in accordance with claim 1, wherein the steel tube is galvanized.
9. A tube/plate condenser in accordance with claim 1, wherein the steel tube is tinned.
10. A tube/plate condenser in accordance with claim 1, wherein the steel tube is uncoated.
11. A tube/plate condenser in accordance with claim 1, wherein the sheet metal and/or the tube (3) are unlacquered.
12. A tube/plate condenser in accordance with claim 1, wherein the sheet metal and/or the tube (3) are lacquered.
13. A refrigerator and/or a freezer comprising a tube/plate condenser (1) in accordance with claim 1.
14. A tube/plate condenser in accordance with claim 2, wherein the tube (3) is connected to the carrier panel (2) in a shape matched or force transmitting manner and is in particular held by its sheet metal.
15. A tube/plate condenser in accordance with claim 2, wherein the carrier panel (2) comprises bent tube reception passages (6) into which the tube (3) is inserted and in which the tube (3) is snugly surrounded by the sheet metal areally.
16. A tube/plate condenser in accordance with claim 15, wherein the tube reception passages (6) snugly surround the tube (3) by more than 180° in cross-section.
17. A tube/plate condenser in accordance with claim 16, wherein the tube (3) is rolled into the sheet metal in the region of the tube reception passages (6).
18. A tube/plate condenser in accordance with claim 5, wherein the tube (3) is enclosed between overlapping sheet metal strips (7, 8) of the carrier panel (2) in the region of the tube reception passages (6).
19. A tube/plate condenser in accordance with claim 2, wherein the sheet metal and/or the tube (3) are unlacquered.
20. A tube/plate condenser in accordance with claim 2, wherein the sheet metal and/or the tube (3) are lacquered.
US11/490,772 2005-07-22 2006-07-21 Tube/plate condenser for refrigerators and/or freezers Abandoned US20070023170A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202005011535 2005-07-22
DEUM202005011535.5 2005-07-22
DE202005012048U DE202005012048U1 (en) 2005-07-22 2005-08-01 Pipe / plate liquefier for refrigerators and / or freezers
DEUM202005012048.0 2005-08-01

Publications (1)

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US20070023170A1 true US20070023170A1 (en) 2007-02-01

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US (1) US20070023170A1 (en)
EP (1) EP1746366A1 (en)
KR (1) KR20070012206A (en)
DE (1) DE202005012048U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130295440A1 (en) * 2012-04-16 2013-11-07 Lg Chem, Ltd. Moisture-limited electrode active material, moisture-limited electrode and lithium secondary battery comprising the same
US20160238262A1 (en) * 2013-09-30 2016-08-18 Arcelik Anonim Sirketi Forced convection heat exchanger for a refrigeration appliance
US20170309953A1 (en) * 2014-10-17 2017-10-26 Toyota Jidosha Kabushiki Kaisha Nonaqueous electrolyte secondary battery and manufacturing method therefor
EP3757484A1 (en) * 2019-06-26 2020-12-30 Whirlpool Corporation Refrigerator appliance

Citations (7)

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US2306772A (en) * 1940-03-12 1942-12-29 Mullins Mfg Corp Sheet and tube evaporator
US2940737A (en) * 1955-04-08 1960-06-14 Houdaille Industries Inc Heat exchanger
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