EP3546858B1 - A household appliance with a condensation dripping edge - Google Patents

A household appliance with a condensation dripping edge Download PDF

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Publication number
EP3546858B1
EP3546858B1 EP19160965.0A EP19160965A EP3546858B1 EP 3546858 B1 EP3546858 B1 EP 3546858B1 EP 19160965 A EP19160965 A EP 19160965A EP 3546858 B1 EP3546858 B1 EP 3546858B1
Authority
EP
European Patent Office
Prior art keywords
household appliance
wall
condensate
appliance according
drop receiver
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.)
Active
Application number
EP19160965.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3546858A1 (en
Inventor
Ibrahim Levent Altay
Orkun Mert Ergin
Tahir Özhan
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL19160965T priority Critical patent/PL3546858T3/pl
Publication of EP3546858A1 publication Critical patent/EP3546858A1/en
Application granted granted Critical
Publication of EP3546858B1 publication Critical patent/EP3546858B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls

Definitions

  • the present invention relates to a household appliance being a refrigerator.
  • Thermal insulation is of vital importance for energy performance of several types of household appliances, in particular cooling appliances.
  • GB 2 258 297 A discloses an exemplary cooling appliance provided with thermal insulation material.
  • EP 2 295 899 A1 discloses a household appliance, wherein a collecting groove for dew water is attached to an outer surface of the appliance.
  • EP 3 147 604 A1 discloses a household appliance comprising a rear wall made of cardboard and a device for leading away dew water arising at the appliance.
  • JP 2017 003143 A discloses a refrigerator which is provided with a ridge protruding outward and extending in the front-rear direction at a lower portion of an outer surface of a side wall.
  • JP S60 11031 A discloses an air conditioner having a dew treatment device whose main body is formed of a synthetic resin material.
  • the document JP S61 49284 U discloses a refrigerator with a dew guiding device to guide the dew formed on the outer walls of the refrigerator.
  • inner liner of a cooling appliance is covered from several sides (usually five sides except a door side) with polyurethane (PU) foam which is filled into an insulation volume.
  • PU foam is obtained from a liquid mixture introduced into the insulation volume and then such liquid mixture reacts to form the PU foam.
  • Such cover may be made of cardboard or any other material having a rigidity to a low extent, and its position is usually fixed using a member which can be called "foaming traverse".
  • a member which can be called "foaming traverse”.
  • Such member can be a single piece formed from a plastic material such as polyethylene.
  • the cover is usually fixed to the member using adhesive materials, usually by adhesive tape; which results in an assembly for defining a compressor housing and its position relative to an inner liner of the appliance.
  • Household appliances e.g. cooling appliances
  • Household appliances are usually positioned for being operated, in a way such that an outer wall thereof (usually a rear wall of the appliance) is faced a substantially parallel surface in the surroundings (e.g. a kitchen wall), leaving only a small distance therebetween for using the total volume of such surroundings effectively.
  • the compressor housing of a cooling appliance being usually positioned at a lower rear portion of such appliance, results in release of heated air to the region behind the rear wall of the cooling appliance, which further results in increased temperature around the outer surface of the rear wall.
  • the temperature difference between the outer surface of the rear wall and the surrounding air is therefore highest when compared to the temperature difference between outer surfaces of other walls of the cooling appliance and air in contact with said surfaces.
  • a portion of the air humidity may condense on outer surfaces of walls of cooling appliances, in particular on outer surface of the rear wall of a cooling appliance.
  • Condensate i.e. water drops formed on a surface due to condensation of the air humidity
  • Condensate may continue traveling to regions of said surface over the compressor housing, such regions at least partly defining an upper side of the compressor housing where some elements sensitive to water exists.
  • the present member design needs to be improved against deflection which generally occurs at the above mentioned conversion into foam.
  • Primary object of the present invention is to overcome the abovementioned shortcomings encountered in the prior art.
  • Another object of the present invention is to provide a household appliance with enhanced safety against short circuits.
  • Another object of the present invention is to provide a household appliance with minimized mold formation.
  • a further object of the present invention is to provide a household appliance with higher form stability at foaming of insulation material.
  • the present invention proposes a household appliance comprising an outer wall with a condensation surface for formation of condensate from air humidity thereon; wherein the household appliance further comprises a member having a guiding surface adjacent to said condensation surface, adapted to receive the condensate from the condensation surface in accordance with gravity; the member further comprises a dripping edge at a side of the guiding surface distal to the outer wall.
  • the household appliance can further comprise a drop receiver adapted by its size, shape and position to receive the condensate when dropped from the dripping edge.
  • the drop receiver can have two distal ends substantially along a length of the dripping edge, said length being substantially in a horizontal direction when in use; and the drop receiver can be attached to the member at one or more zone(s) between said distal ends.
  • the drop receiver can have a shape and size adapted to direct the condensate towards an evaporation receptacle.
  • the drop receiver can have one or more inclined portion(s) adapted to provide a horizontal component to a flow of the condensate thereon when in use, said horizontal component being at least partly directed towards a vertical projection of the evaporation receptacle.
  • the household appliance can further comprise a conduit adapted to further guide the condensate from the drop receiver towards the evaporation receptacle when in use.
  • the evaporation receptacle can be adapted to have a greater temperature than the condensation surface when in operation.
  • the drop receiver can further include one or more housing(s) to receive respective one or more spacer(s) adapted to, in use, secure a pre-determined distance for the outer wall from a further surface substantially parallel thereto.
  • the one or more housing(s) or respective one or more spacer(s) can include multiple engagement positions in a direction substantially perpendicular to the outer wall.
  • the member is substantially formed from a non-flammable material. Thus, it prevents any possible flame to reach the flammable insulation foam inside the wall of the appliance.
  • the member is substantially formed from a metallic material.
  • the member can be substantially formed from bent sheet metal.
  • the household appliance according to the present invention is a cooling appliance, namely a refrigerator. All features and details explained above may be combined in any technically enabling combination.
  • the present invention proposes a household appliance (100) comprising an outer wall (50) with a condensation surface (51) for formation of condensate from air humidity thereon.
  • the household appliance further comprises a member (10) having a guiding surface (11) adjacent to said condensation surface (51).
  • Said guiding surface (11) is adapted to receive the condensate from the condensation surface (51) in accordance with gravity (g) (i.e. gravity force applied on the condensate);
  • the member (10) further comprises a dripping edge (12) at a side of the guiding surface (11) distal to the outer wall (50).
  • Such dripping edge (12) provides that the member (10) is adapted to allow the condensate drop from the member (10).
  • the condensation may also occur on the guiding surface (11) when the household appliance (100) is in operation.
  • Fig. 1 shows a perspective view of a household appliance (100) including the member (10) according to the present invention, emphasizing an outer wall (50) with a condensation surface (51).
  • the item “A” in Fig. 1 corresponds to a portion of the household appliance (100) around its compressor housing (90) for being shown in a close-up view in Fig. 2 ; and "g” represents the gravity as a vector quantity.
  • the compressor housing (90) is positioned substantially at a lower portion of the household appliance (100).
  • the compressor housing (90) remains below an outer wall (50, here: rear wall) which has an outer surface (51) substantially parallel to the gravity (g), such that any condensate appeared on the outer surface (51) tend to be guided on the outer surface (51) mainly parallel to the gravity (g).
  • Fig. 2 shows a detail from the Fig. 1 , emphasizing an exemplary positioning of an exemplary embodiment of the member (10), wherein the member (10) is positioned adjacent to an outer wall (50) (e.g. a rear wall), along their respective edges to directly receive condensate from the condensation surface (51).
  • Fig. 5 is a perspective view from another angle without side walls, insulation, inner lining and front section of the appliance (100).
  • the member (10) can be considered as a constructional detail which can be named as e.g. "foaming traverse”.
  • the household appliance (100) can further comprise a drop receiver (20) adapted by its size, shape and position to receive the condensate when dropped from the dripping edge (12).
  • Fig. 3 shows is an exploded view partly showing an exemplary embodiment according to the present invention, wherein the drop receiver (20) is arranged to remain below the member (10) when in operation to receive condensate therefrom.
  • the shaded items on the Fig. 3 represent drops of condensate.
  • Fig. 4 shows a side view showing an exemplary positioning between a member (10) and an outer surface (51) of an outer wall (50) in an exemplary embodiment of the household appliance (100) according to the present invention, emphasizing a dripping edge (12), and a drop receiver (20) which is arranged to remain below (at a vertical projection of) the dripping edge (12) when the household appliance is in operation. Due to the gravitation, any condensate formed on the condensation surface (51) is to flow to the guiding surface (11) of the member (10), and to continue towards the dripping edge (12), then to leave the member (10) by dropping onto or being conducted to the drop receiver (20).
  • the drop receiver (20) can have two distal ends substantially along a length (L) of the dripping edge (12), said length being substantially in a horizontal direction (H) (which is perpendicular to the direction of gravity "g" as emphasized in the Fig. 3 ) when in use; and the drop receiver (20) can be attached to the member (10) at one or more zone(s) between said distal ends.
  • This embodiment provides secure relative positioning between the dripping edge (12) and the drop receiver (20) against bending of the drop receiver (20) e.g. at assembly of the household appliance (100), which would potentially result in dripping of condensate to any location other than the drop receiver (20).
  • This embodiment is exemplified in Fig. 7 and Fig. 8 , with two (as an example for one or more) connecting means (28) each corresponding to one of such zones.
  • the drop receiver (20) can have a shape and size adapted to direct condensate towards an evaporation receptacle (30).
  • Fig. 6 shows a perspective view showing detail of an exemplary embodiment including an evaporation receptacle (30) for receiving condensate from the drop receiver (20).
  • the drop receiver can have one or more inclined portion(s) (21) adapted to provide a horizontal component to a flow of the condensate thereon when in use, said horizontal component being partly or completely directed towards a vertical projection of the evaporation receptacle (30), as schematically exemplified in the Fig.3 .
  • the household appliance can further comprise a conduit adapted to further guide the condensate from the drop receiver (20) towards the evaporation receptacle (30) when in use. Schematics of such embodiment is exemplified in the Fig. 3 .
  • the evaporation receptacle (30) can be adapted to have a greater temperature than the condensation surface (51) when in operation.
  • This embodiment facilitates and expedite the evaporation of condensate on the evaporation receptacle (30), said evaporation being symbolized over curved, dashed arrows on Fig. 3 .
  • the evaporation receptacle (30) can be configured to be in heat transfer communication with e.g. a compressor which readily generates heat when in operation thereby having a higher temperature when compared to its surroundings.
  • the drop receiver (20) can further include one or more housing(s) (23) configured to partly receive respective one or more spacer(s) (24).
  • housings (23) are exemplified in Fig. 6 , Fig. 7 , Fig. 12 and Fig. 13 before installation of respective spacers (24).
  • a spacer (24) is configured to, in use, be only partly received by a respective housing (23) thereby leaving a portion thereof extending out of a plane to an extent corresponding to a distance (D, D1 or D2), which plane being substantially defined by the condensation surface (51) of the outer wall (50).
  • the spacer(s) (24) are configured to secure one or more pre-determined distance(s) (exemplified as one or more of D, D1, D2) for the outer wall (50) from a further surface substantially parallel to said outer wall (50).
  • Spacer(s) (24) being or to be received by such housing(s) (23) are exemplified in Fig. 8 , Fig.
  • the housing(s) (23) may be formed integral to the drop receiver (20), thereby providing an enhanced mechanical stability for the respective positioning between the housing(s) (23) and the drop receiver (20), e.g. at assembling of the household appliance (100).
  • a housing (23) may include one or more lug(s) (26) as exemplified in the Fig. 13 configured to limit the penetration of a respective spacer (24) at introduction thereof into the housing (23), thereby preventing the spacer (24) being completely received by the housing (23), and further securing that the extent to which the spacer (24) extends out-of said plane is greater than zero.
  • the one or more housing(s) (23) or respective one or more spacer(s) (24) can include multiple engagement positions (251, 252) in a direction substantially perpendicular to the outer wall (50).
  • This embodiment enables selection of such distance from multiple options, such that a more suitable distance between the outer wall (50) and the further surface can be selected from other option(s) in accordance with the climatic requirements (and psychrometric values including air humidity, temperature and pressure) determining a tendency for condensation and a condensation rate on the condensation surface (51) when the household appliance (100) is in operation.
  • a housing (23) and spacer (24) may be configured to be engaged over snap-fit connection therebetween.
  • a housing (23) may be provided with one or more slit(s) determining respective engagement position(s) (251, 252); and a respective spacer (24) may be provided with a flexible protrusion (27) configured to engage with either one of said slit(s) thereby securing a respective distance (D, e.g. D1 or D2).
  • D e.g. D1 or D2
  • the member (10) is substantially formed from a non-flammable material.
  • a non-flammable material can be selected in accordance with the international standard IEC 60235-2-24 (e.g. the version thereof valid as of the date of filing of the present application), such that the material meets the requirements of said standard.
  • the member (10) is substantially formed from a thermally stable, inflammable, metallic material, for example steel or aluminum.
  • the member (10) is substantially formed from a metallic material.
  • the dripping edge (12) in this embodiment can be substantially formed from metallic material, and thereby provide an increased resistance and rigidity against any deflexion of the member (10), especially against deflection caused by volumetric expansion of insulation material at conversion thereof into a foam.
  • the member (10) may be substantially formed from bent sheet metal.
  • the exemplary member (10) side section view of which is shown in the Fig. 4 can be obtained from a sheet metal.
  • the dripping edge (12) can be formed by bending the sheet metal to about 180° (taking 360° as full angle) with respect to zone to be corresponding to a guiding surface (11) thereon; and then further bending the sheet metal around a line mainly parallel to the dripping edge (12) in opposite direction to about 90-100°, the dripping edge (12) remaining between said line and the guiding surface (11).
  • the household appliance (100) according to the present invention is a cooling appliance, namely a refrigerator.
  • the present invention provides management of condensation by conducting the condensate away from delicate electronics in the compressor housing (90), such that condensate cannot reach to the electronics.
  • the present invention further provides elimination of mold formation on outer walls (50) of the household appliance (100) by conducting the condensate away.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cookers (AREA)
  • Refrigerator Housings (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP19160965.0A 2018-03-27 2019-03-06 A household appliance with a condensation dripping edge Active EP3546858B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19160965T PL3546858T3 (pl) 2018-03-27 2019-03-06 Urządzenie gospodarstwa domowego z krawędzią ociekową kondensatu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR201804275 2018-03-27

Publications (2)

Publication Number Publication Date
EP3546858A1 EP3546858A1 (en) 2019-10-02
EP3546858B1 true EP3546858B1 (en) 2020-11-18

Family

ID=65717857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19160965.0A Active EP3546858B1 (en) 2018-03-27 2019-03-06 A household appliance with a condensation dripping edge

Country Status (3)

Country Link
EP (1) EP3546858B1 (pl)
CN (1) CN110307686B (pl)
PL (1) PL3546858T3 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021134065A1 (de) 2021-12-21 2023-06-22 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
JPS6011031A (ja) * 1983-07-01 1985-01-21 Matsushita Electric Ind Co Ltd 空気調和機の露処理装置
JPS6149284U (pl) * 1984-08-31 1986-04-02
JP2557707B2 (ja) * 1989-04-27 1996-11-27 三洋電機株式会社 ショーケース
IT222658Z2 (it) 1991-07-03 1995-04-24 Candy Struttura performata per la realizzazione del vano compressore in frigoriferi e simili
JP2840506B2 (ja) * 1992-07-31 1998-12-24 三洋電機株式会社 低温ショーケース
JP3689251B2 (ja) * 1999-03-08 2005-08-31 ホシザキ電機株式会社 冷凍機構を有する装置の蒸発皿
JP2001201240A (ja) * 2000-01-17 2001-07-27 Sanyo Electric Co Ltd 貯蔵ケース
JP2004239474A (ja) * 2003-02-04 2004-08-26 Hoshizaki Electric Co Ltd ショーケースの結露水排出構造
JP2008025888A (ja) * 2006-07-19 2008-02-07 Sanyo Electric Co Ltd 低温ショーケース
JP5111871B2 (ja) * 2007-01-22 2013-01-09 株式会社岡村製作所 オープンショーケース
DE102009028781A1 (de) * 2009-08-21 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Tauwasser-Auffangrinne
CN204165306U (zh) * 2014-10-20 2015-02-18 河南鸿昌电子有限公司 具有接水盘的半导体致冷箱
JP6579806B2 (ja) * 2015-06-05 2019-09-25 東芝ライフスタイル株式会社 冷蔵庫
CN106322564A (zh) * 2015-06-30 2017-01-11 淄博气宇空调节能设备有限公司 组合式空调机组接水盘
DE102015218449A1 (de) * 2015-09-25 2017-03-30 BSH Hausgeräte GmbH Verfahren zum Herstellen eines Haushaltskältegeräts mit spezifisch befestigter Rückwand sowie Haushaltskältegerät

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None *

Also Published As

Publication number Publication date
CN110307686B (zh) 2022-05-06
PL3546858T3 (pl) 2021-05-17
CN110307686A (zh) 2019-10-08
EP3546858A1 (en) 2019-10-02

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