EP0753710A2 - Appareil frigorifique avec égout d'eau de dégivrage - Google Patents

Appareil frigorifique avec égout d'eau de dégivrage Download PDF

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Publication number
EP0753710A2
EP0753710A2 EP96107717A EP96107717A EP0753710A2 EP 0753710 A2 EP0753710 A2 EP 0753710A2 EP 96107717 A EP96107717 A EP 96107717A EP 96107717 A EP96107717 A EP 96107717A EP 0753710 A2 EP0753710 A2 EP 0753710A2
Authority
EP
European Patent Office
Prior art keywords
funnel
tube
cooling device
tulip
inner container
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.)
Withdrawn
Application number
EP96107717A
Other languages
German (de)
English (en)
Other versions
EP0753710A3 (fr
Inventor
Gerald Dipl.-Ing. Manns
Hans-Peter Dipl.-Ing. Zeismann
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.)
AEG Hausgeraete GmbH
Original Assignee
AEG 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 AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP0753710A2 publication Critical patent/EP0753710A2/fr
Publication of EP0753710A3 publication Critical patent/EP0753710A3/fr
Withdrawn legal-status Critical Current

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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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections

Definitions

  • the invention relates to a cooling device according to the preamble of claim 1.
  • an outwardly directed shape is provided in the vertical side wall of an inner container to be cooled, in the region of a drainage channel provided there, onto which a tulip tube which is inclined downwards is glued, while from the inside of the inner container the funnel tube of a funnel is inserted coaxially into the tulip tube through a corresponding hole in the formation.
  • the adhesive connection between the tulip tube and the molding is not permanently tight and moisture can penetrate into the heat-insulating foam surrounding the tulip tube. This reduces the thermal insulation properties of the thermal insulation layer located between the inner container and the outer housing.
  • the invention has for its object to take measures in a cooling device according to the preamble of the first claim, through which a permanent, tight closure of the condensate drain is achieved.
  • the sealing function is shifted from the area outside the molding to the inside thereof and the sealing function is implemented directly between the funnel and the inside of the molding.
  • the funnel tube also serves for the direct, tight connection to a drain line which is led to an evaporation container which absorbs condensation. As a result, there is no possibility that moisture can pass into the insulating foam.
  • the seal between the funnel and the formation which is made in particular of elastic material, makes it possible to absorb dimensional fluctuations occurring during the operating time by means of axial elastic pressing by means of a suitable tensioning device and thereby ensure tightness over a long period of time.
  • the funnel tube is preferably fixed by means of a screw connection which can be tightened if necessary.
  • a tulip tube can grip the funnel tube coaxially outside of the shape and have a tulip extension that matches the outer shape of the shape in the overlap area with the funnel. The forces transferred from the funnel to the formation via the seal are then absorbed by the tulip extension.
  • the tulip tube serves in particular as a counter bearing for the tensioning device and can be provided directly with an adapted internal thread section which is brought into engagement with the external thread of the funnel tube during assembly and serves to generate the necessary sealing pressure.
  • the tulip tube can also have a step-like extension, on the radial edge of which is supported an independent threaded nut, which can come into engagement with the external thread of the tulip tube.
  • the tulip tube is in particular foam-tight on the shape and also on the adjacent outer wall of the refrigerator housing, so that neither in the shape nor in the opening necessary for the passage of the funnel tube or a pipe to be connected in the vertical housing wall during the foaming process, insulating foam to the outside can reach.
  • the shape and the funnel as well as the tulip widening are preferably spherical-carrot-shaped, because the rotationally symmetrical structure can be achieved with minimal effort during production.
  • the shape is largely bag-shaped, its axis being inclined downwards and at least approximately aligned with the axis of the funnel tube used.
  • the axis inclination is preferably approximately 35 degrees with respect to a vertical.
  • the funnel tube can be provided with a polygonal profile over at least part of its axial length, this profile being located in particular in the region of the funnel and can be designed as a hexagon for conventional socket wrenches.
  • the procedure can be such that the inner container is provided with the necessary bore for the funnel tube in the region of the formation after the deep-drawing. Then a sealing ring can be pushed over the outlet pipe to the funnel and the funnel pipe can be inserted through the hole.
  • the tulip tube can be plugged onto the outwardly projecting end of the funnel tube and fixed on the outside of the formation by means of the tensioning device in such a way that the seal fits tightly between the funnel and the inside of the molding. Due to the pressure that occurs, the. Tulip widening applied tightly to the outside of the molding. Foaming of the cavity between the inner container wall and the outer housing wall can then be carried out.
  • the tulip tube with its tulip extension onto the outside of the undrilled shape and to carry out the foaming of the cavity between the inner container and the outer housing. Then, for example, the shape can be drilled from the outside through the tulip tube and only then can the funnel tube and seal be installed by screwing in.
  • the funnel tube can be dismantled at any time and the seal replaced or readjusted if necessary.
  • the rear wall 1 accommodates a good to be cooled
  • inner container with an outwardly directed, obliquely downwardly inclined, bag-shaped formation 2, into which a condensation water drainage channel 3, which extends over the width of the rear wall 1, preferably opens on opposite sides.
  • the longitudinal axis of the formation extends obliquely downwards and outwards at an angle of inclination of approximately 35 ° with respect to a vertical outer housing wall 4, which runs approximately parallel to the plane of the rear wall 1, the space between the rear wall 1 and the outer housing wall 4 being foamed with heat-insulating foam 5.
  • the latter In the direction of the main axis of the formation 2, the latter has a bore 6 through which a funnel tube 7 projects, the free end of which is accessible from the outside through an opening 8 in the outer housing wall 4.
  • the funnel tube 7 has at its end protruding into the formation 2 a funnel 9 which is adapted in cross section to the contour of the formation in the area of coverage concerned.
  • an annular disk-shaped seal 10 is pushed onto the funnel tube 7 before it is inserted into the bore 6, which seals when the funnel 9 is pressed against the formation 2 inserts into the gap formed between them and forms a watertight seal between the inner container space and the foam 5 surrounding the inner container.
  • the funnel 9 is designed by means of a tensioning device provided outside the inner container and engaging on the funnel tube 7, consisting of an external thread section 11 provided on the funnel tube 7 and a stationary axially supported threaded nut piece 12.
  • the funnel tube 7 engages almost axially with the longitudinal axis of the formation 2 into a tulip tube 13, which is supported with a tulip widening 14 at least in the area of overlap with the funnel 9 on the outside of the formation 2 and on the other hand also forms a foam-tight seal with the outer housing wall 4, whereby it also forms a foam-tight seal with the rear wall 4 with respect to the opening 8.
  • the tulip tube 13 is foamed into the foam during the foaming process.
  • the formation 2 is at least in the overlap region with the funnel 9 in the form of a spherical carrot, the outside of the funnel being shaped in a competitively opposite manner, so that a large-area contact region with the adjacent wall section of the formation 2 occurs via the seal 10.
  • the shape 2 is supported in this area by the shape of the tulip widening 14, so that a stable mechanical arrangement is achieved. As a result, the axial forces occurring when the condensate drain is braced can be absorbed by the tulip tube.
  • the tulip tube 13 is provided with a step-shaped extension 15, an independent threaded nut 12 being supported on the step wall 15 thus formed, which in turn is in engagement with the external thread 11 on the casing of the funnel tube 7.
  • the funnel tube 7 is provided with a polygonal profile 17, in particular an internal hexagonal profile, over at least part of its axial length, so that it can be screwed into the fixedly inserted threaded nut 12 using a conventional hexagon wrench can be executed.
  • the funnel tube 7 is in the region of the funnel 9 with the Polygonal profile 17 provided to enable assembly from the interior of the inner container.
  • the tulip tube 13 can, however, also be provided directly with an internally threaded section 12a, which can be brought into engagement with the external thread 11 of the funnel tube 7 for clamping the seal 10.
  • the assembly aid thus formed is necessary Inclines the funnel tube. This ensures that the corresponding lower funnel flank 18 of the funnel 9 is at least horizontally, but preferably slightly inclined downward towards the funnel tube, in order to avoid permanent water accumulation.
  • the lower end of the funnel tube 7 directed towards the opening 8 is coupled to a drain line 19 in such a way that the tulip tube 13 is not wetted with moisture, which would otherwise form at the support points thereof with the molding 2 or the rear wall 1 in the foam 5 could penetrate.
  • the part that projects beyond the plane of the opening 8 and ensures that the tulip tube 13 is not wetted is to be considered as the drain line.
  • the drain line 19 can therefore be connected in one piece or as an additional part to the funnel tube 7 and lead to an optionally arranged collecting tray for condensate to be evaporated, which is to be removed in particular from the area of an evaporator arranged in the inner container during a defrosting phase.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)
EP96107717A 1995-07-14 1996-05-15 Appareil frigorifique avec égout d'eau de dégivrage Withdrawn EP0753710A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19525691 1995-07-14
DE1995125691 DE19525691A1 (de) 1995-07-14 1995-07-14 Kühlgerät mit einem Tauwasserablauf

Publications (2)

Publication Number Publication Date
EP0753710A2 true EP0753710A2 (fr) 1997-01-15
EP0753710A3 EP0753710A3 (fr) 1998-01-07

Family

ID=7766824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96107717A Withdrawn EP0753710A3 (fr) 1995-07-14 1996-05-15 Appareil frigorifique avec égout d'eau de dégivrage

Country Status (2)

Country Link
EP (1) EP0753710A3 (fr)
DE (1) DE19525691A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003085339A1 (fr) * 2002-04-05 2003-10-16 Dometic Gmbh Caisse de refrigerateur
CN103486803A (zh) * 2013-09-25 2014-01-01 合肥美的电冰箱有限公司 一种冰箱排水管防冰堵结构
US20220341651A1 (en) * 2019-09-12 2022-10-27 Qingdao Haier Refrigerator Co., Ltd. Refrigerator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015006912B4 (de) * 2015-03-25 2023-08-03 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768599A (en) * 1927-10-17 1930-07-01 Frigidaire Corp Refrigerating apparatus
US2069149A (en) * 1934-09-10 1937-01-26 Eidco Inc Refrigerator
US2594073A (en) * 1948-08-06 1952-04-22 Carl G Robbins Condensate disposal system for refrigerators
DE8629578U1 (de) * 1986-11-05 1987-02-12 Bosch-Siemens Hausgeräte GmbH, 8000 München Kühlmöbel, insbesondere Kühlschrank
US4843835A (en) * 1988-09-27 1989-07-04 Amana Refrigeration, Inc. Refrigerator drain funnel
EP0391177A2 (fr) * 1989-04-05 1990-10-10 AURORA Konrad G. Schulz GmbH & Co Buse d'échappement
DE9309600U1 (de) * 1993-06-29 1994-11-03 Licentia Patent-Verwaltungs-Gmbh, 60596 Frankfurt Kühlschrank mit Tauwasserablaufstutzen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768599A (en) * 1927-10-17 1930-07-01 Frigidaire Corp Refrigerating apparatus
US2069149A (en) * 1934-09-10 1937-01-26 Eidco Inc Refrigerator
US2594073A (en) * 1948-08-06 1952-04-22 Carl G Robbins Condensate disposal system for refrigerators
DE8629578U1 (de) * 1986-11-05 1987-02-12 Bosch-Siemens Hausgeräte GmbH, 8000 München Kühlmöbel, insbesondere Kühlschrank
US4843835A (en) * 1988-09-27 1989-07-04 Amana Refrigeration, Inc. Refrigerator drain funnel
EP0391177A2 (fr) * 1989-04-05 1990-10-10 AURORA Konrad G. Schulz GmbH & Co Buse d'échappement
DE9309600U1 (de) * 1993-06-29 1994-11-03 Licentia Patent-Verwaltungs-Gmbh, 60596 Frankfurt Kühlschrank mit Tauwasserablaufstutzen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003085339A1 (fr) * 2002-04-05 2003-10-16 Dometic Gmbh Caisse de refrigerateur
US7296432B2 (en) 2002-04-05 2007-11-20 Dometic Gmbh Refrigerator housing
CN103486803A (zh) * 2013-09-25 2014-01-01 合肥美的电冰箱有限公司 一种冰箱排水管防冰堵结构
CN103486803B (zh) * 2013-09-25 2015-08-26 合肥美的电冰箱有限公司 一种冰箱排水管防冰堵结构
US20220341651A1 (en) * 2019-09-12 2022-10-27 Qingdao Haier Refrigerator Co., Ltd. Refrigerator

Also Published As

Publication number Publication date
DE19525691A1 (de) 1997-01-16
EP0753710A3 (fr) 1998-01-07

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