EP3228964A1 - Appareil de refroidissement et/ou congélation - Google Patents

Appareil de refroidissement et/ou congélation Download PDF

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Publication number
EP3228964A1
EP3228964A1 EP17162997.5A EP17162997A EP3228964A1 EP 3228964 A1 EP3228964 A1 EP 3228964A1 EP 17162997 A EP17162997 A EP 17162997A EP 3228964 A1 EP3228964 A1 EP 3228964A1
Authority
EP
European Patent Office
Prior art keywords
mist generator
piezoelectric element
tank
water
partition plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17162997.5A
Other languages
German (de)
English (en)
Other versions
EP3228964B1 (fr
Inventor
Thomas Gindele
Arnulf Probst
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
Priority claimed from DE102016005405.0A external-priority patent/DE102016005405A1/de
Application filed by Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP3228964A1 publication Critical patent/EP3228964A1/fr
Application granted granted Critical
Publication of EP3228964B1 publication Critical patent/EP3228964B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • F25D23/069—Cooling space dividing partitions
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification

Definitions

  • the present invention relates to a refrigerator and / or freezer with at least one body and with at least one of the body surrounded cooled interior, wherein in the cooled interior at least one mist generator is arranged, wherein the mist generator has at least one piezoelectric element.
  • the present invention has the object of developing a refrigerator and / or freezer of the type mentioned in that this has a particularly compact structure.
  • the mist generator is integrated into the horizontal partition plate that this not or not substantially above the horizontal Partition plate protrudes.
  • the mist generator is thus integrated into the partition plate in such a way that it preferably does not project beyond the partition plate to either side, which results overall in a particularly compact construction and also achieves the advantage of a particularly attractive overall visual impression.
  • the invention also includes some projection of the mist generator on one or more sides beyond the surface of the separator plate.
  • This protrusion is preferably not more than 3 cm or not more than 2 cm, and more preferably not more than 1 cm.
  • the degree of supernatant is preferably lower (preferably not more than 1 cm) due to the visibility of the supernatant by the user, than in the case of a projection on the underside of the separating plate. There, a maximum projection of 2 cm is preferably provided.
  • the mist generator extends - if at all - on the bottom only so far beyond the partition plate that the drawer can be completely removed from the device and the mist generator hindering the removal Stop forms.
  • the mist generator is constructed from a plurality of modularly assembled components. These components may be, for example, a tank and a lid which may be slidable, pivotable or detachable relative to the tank.
  • Constituent may also be understood as meaning other elements of the mist generator, such as, for example, one or more concentrators which have the task of concentrating the sound waves or water jets emanating from the at least one piezoelectric element at a point or a region, or one or more deflectors, which have the task to redirect the output from the at least one piezoelectric element sound waves or water jets, or even components of the electronics, such as the piezoelectric electronics for driving the piezoelectric element.
  • concentrators which have the task of concentrating the sound waves or water jets emanating from the at least one piezoelectric element at a point or a region
  • deflectors which have the task to redirect the output from the at least one piezoelectric element sound waves or water jets
  • components of the electronics such as the piezoelectric electronics for driving the piezoelectric element.
  • the present invention further relates to a refrigerator and / or freezer with at least one cooled interior space surrounded by the body, wherein in the cooled interior at least one mist generator is arranged, wherein the mist generator has at least one piezoelectric element.
  • the piezoelectric element is inclined so that the outgoing from this oblique water jet outside the water surface is divided into droplets, so that can be dispensed with the concentrator.
  • the mist generator has at least one tank and at least one lid closing the tank and at least one receptacle for the tank, wherein it is preferably provided that the Lid is movable relative to the tank, preferably removable and / or that the tank can be removed from the receptacle. Due to the removability of the tank this can be cleaned very easily, eg in a dishwasher.
  • the receptacle can form a solid or integral part of the partition plate or of any other element of the device or can also be detachably arranged in the device.
  • the mist generator may comprise at least one nebulizing chamber having a plurality of outlet openings for the generated mist and the width of the nebulization chamber decreasing as the distance from the piezoelectric element increases.
  • the mist generator according to the present invention is arranged such that the mist emanating therefrom "falls" in an area below the mist generator or is conveyed by a blower or air flow.
  • This area may be, for example, a drawer or any other compartment which is preferably located below a horizontal partition plate. This separates in a preferred embodiment of the invention, two compartments of each other, which are operated during operation of the device at different temperatures, such. a refrigerated compartment and a cold storage compartment.
  • the mist generator may comprise at least one concentrator for focusing the sound waves emanating from the piezoelectric element, the piezoelectric element and / or the concentrator being inclined towards the horizontal. In this way it is possible to direct or direct the water jet or the sound waves in the desired direction and preferably in the direction of the at least one outlet opening of the mist generator.
  • the piezoelectric element may be inclined so that outside the water surface of the water in the tank, the water jet generated by the piezoelectric element is divided into droplets.
  • the mist generator has at least one lid, wherein at least one deflecting element is provided on the lid, which deflects the water jet impinging thereon and generated by the piezoelectric element in the direction of one or more outlet openings of the mist generator.
  • at least one deflecting element is provided on the lid, which deflects the water jet impinging thereon and generated by the piezoelectric element in the direction of one or more outlet openings of the mist generator.
  • the mist generator has at least one water tank, which is inclined so that water runs towards the piezoelectric element. This ensures that sufficient water is always present on the piezoelectric element when the tank has sufficient filling.
  • the piezoelectric element is completely or substantially covered with water when the mist generator is in operation.
  • the mist generator has at least one water tank, which comprises at least one opening to the piezoelectric element, wherein this opening is closed by at least one vibration transmitting sealing element.
  • FIG. 1 shows by reference numeral 10, a horizontal partition plate, which separates two compartments of different temperature within the cooled interior of a refrigerator or freezer from each other.
  • the mist generator 20 which is integrated so that it is flush with the top of the partition plate 10.
  • the mist generator is not on either side, i. also not on the bottom over the surface of the partition plate 10 over.
  • the partition plate has a thickness of 30 mm or less.
  • the mist generator comprises the lid 30, the tank 40 and the receptacle 50, as shown FIG. 2 a), b) and c) evident.
  • the lid 30 may be made in one or more parts. It can be completely removed to fill the tank 40 or even part of it.
  • a measuring cup can be arranged, preferably molded, which allows easier filling of the tank with water.
  • cover 30 could also be arranged foldable or pivotable or displaceable on the tank.
  • the lid 30 may include means or be marked such that these means or markers serve as level markings.
  • the tank 40 is designed so that its top can be completely covered by the lid 30.
  • the tank has openings that prevent gas tightness, thus ensuring that the mist can escape through the outlet openings of the tank 40.
  • the tank has means for level detection, such as steps, colored markers, sprayed marks on the tank wall, float systems, etc.
  • FIG. 2c shows the receptacle 50 for the tank 40 and the piezoelectric element, the piezoelectric electronics for its control, cables, connectors, etc.
  • the receptacle 50 preferably has all the necessary for the operation of the mist generator elements. This can be integrated into the horizontal partition plate 10, as is the case for example with an injection molded part, or also be used as an additional, ie as a separate part in the partition plate 10.
  • FIG. 3 illustrates the design of the mist generator in a view obliquely from above without a lid.
  • the reference numeral 100 shows the piezoelectric electronics that drives the piezoelectric element P.
  • the reference character K denotes the concentrator which focuses the sound waves or water jets originating from the piezoelectric element P, such as a lens, onto a point or area. From the concentrator K, the water or the mist passes to the deflecting element 90, according to FIG. 4 an integral part of the lid 30 may represent. From there, the mist is directed into the misting chamber V, where the mist is directed through the discharge ports 60 into the drawer or the like below the separation plate.
  • Reference numeral 80 indicates means at the outlet openings which cause larger drops to fall back into the tank 40 and only fine drops to pass through the outlet openings 60.
  • Reference numeral 70 denotes a wall which causes the mist to be uniformly pushed through the outlet openings 60.
  • FIG. 4 shows the mist generator in a longitudinal sectional view and illustrates the arrangement of the concentrator K. This directs the water jet or the sound waves, which are excited by the piezoelectric element P to.
  • the shape of the concentrator may be parabolic, semicircular, circular or even oblique.
  • the concentrator K is preferably made of aluminum or another metal. Also plastic or coated plastic or plastic or metal metallized film is conceivable. Preferably, the concentrator K is dimensioned so that only the coming of the piezoelectric element P water jet or sound wave is received. The advantage of the small size and the appropriate dimension is that the water can get into the ram between the piezoelectric element and the concentrator K well from all sides.
  • the concentrator K may be inclined to the horizontal, i. stand diagonally so that the water jet already points in the direction of the outlet openings.
  • the piezoelectric element P could also be inclined or inclined to the horizontal and direct the water jet in the direction of the outlet opening (s).
  • the invention also includes a non-planar design of the piezoelectric element, such as a parabolic shape, which could shorten the distance between the piezoelectric element and the nebulizing unit.
  • FIG. 6 shows a further sectional view and illustrates that the outlet openings 60 for the mist can have different heights.
  • high channels can be used which delimit the outlet openings 60 and with increasing distance from the piezoelectric element P their height can be reduced, as can be seen FIG. 6 evident.
  • FIG. 6 apparent slope S in the bottom of the water tank 40 is achieved that water is always passed to the piezoelectric element. Thus, no valve is required in this embodiment.
  • the water tank 40 and the nebulizer unit may form a common unit.
  • the piezoelectric element P is formed so that it does not damage when it runs dry.
  • the mist generator can be operated until the water is used up or is no longer sufficient for fog generation.
  • the in FIG. 7 Separable nebulizer unit shown in individual parts separable, ie the tank 40, the concentrator K and the deflector 90 can be removed without that electrical components such as the piezoelectric element P or the piezoelectric electronics must be removed.
  • the reference character O denotes an opening in the tank 40 in the region of the piezoelectric element P.
  • FIG. 8 shows the nebulizer unit, which is an integral part of the tank 40 in a view obliquely from above.
  • the nebulizer unit consists of the nebulizer chamber V, the outlet ports 60, the concentrator K, which is optional, and as the piezoelectric element P and its control.
  • FIG. 9 illustrates that when removing the tank 40 for cleaning, for example, by turning, tilting up or pushing an opening indicated by the arrow is formed, from which the remaining water in the tank 40 leak can.
  • all components are designed below this point so that a vessel can be placed, so that the water can be drained.
  • FIG. 10 an embodiment can be seen in which the opening O according to FIG. 7 is closed by a component B which has the property of transmitting the vibrations generated by the piezoelectric element P to the water located in the tank 40.
  • this part B prevents, at least for a short time, that the residual water at this point can run out of the tank 40.
  • a membrane can be used which allows a very small amount of water to be present between the piezoelectric element P and the membrane, so that the vibrations can be transmitted but prevents leakage of water when the tank is removed becomes.
  • the drop between the piezoelectric element and the membrane then drips, for example, into a drawer or the like, which is located below the mist generator and evaporates there.
  • it is to arrange the component B directly on the piezoelectric element P.
  • a porous material e.g. a sponge can be used as component B. This absorbs water and allows the transmission of the vibrations of the piezoelectric element, but prevents a rapid leakage of the tank.
  • FIG. 11 indicated by arrows the path of the water within the tank to the nebulizer unit.
  • FIG. 12 is schematically seen that the nebulizable amount of water W is preferably 9 to 14 mm above the tank bottom.

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  • 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)
  • Special Spraying Apparatus (AREA)
EP17162997.5A 2016-04-05 2017-03-27 Appareil de refroidissement et/ou congélation Active EP3228964B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016004123 2016-04-05
DE102016005405.0A DE102016005405A1 (de) 2016-04-05 2016-05-02 Kühl- und/oder Gefriergerät

Publications (2)

Publication Number Publication Date
EP3228964A1 true EP3228964A1 (fr) 2017-10-11
EP3228964B1 EP3228964B1 (fr) 2021-06-16

Family

ID=58428160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17162997.5A Active EP3228964B1 (fr) 2016-04-05 2017-03-27 Appareil de refroidissement et/ou congélation

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EP (1) EP3228964B1 (fr)
ES (1) ES2886611T3 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69307488T2 (de) * 1992-04-29 1997-07-10 Chronotec Sarl Vorrichtung zur durch ultraschallwellen erzeugten feinzerstäubung
JP2006046768A (ja) * 2004-08-03 2006-02-16 Toshiba Corp 冷蔵庫
JP2006118825A (ja) * 2004-10-25 2006-05-11 Toshiba Corp 冷蔵庫
JP2007024421A (ja) * 2005-07-19 2007-02-01 Takagi Ind Co Ltd ミスト発生方法及びその装置
JP2009002590A (ja) * 2007-06-22 2009-01-08 Panasonic Corp 冷蔵庫および冷蔵庫に搭載される霧化装置
US20100223944A1 (en) * 2007-10-09 2010-09-09 Panasonic Corporation Refrigerator
DE102013213206A1 (de) * 2013-07-05 2015-01-08 BSH Bosch und Siemens Hausgeräte GmbH Haushaltskältegerät mit einem im Innenraum ausgebildeten Lagerbereich und einer Befeuchtungsvorrichtung
DE102014017044A1 (de) 2013-11-26 2015-05-28 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
WO2016009127A1 (fr) * 2014-07-17 2016-01-21 Areco Finances Et Technologie - Arfitec Nébuliseur compact pour rafraîchir l'air
US20160067368A1 (en) * 2013-04-30 2016-03-10 Areco Finances Et Technologie - Arfitec Nebulizer system for freshening the air

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69307488T2 (de) * 1992-04-29 1997-07-10 Chronotec Sarl Vorrichtung zur durch ultraschallwellen erzeugten feinzerstäubung
JP2006046768A (ja) * 2004-08-03 2006-02-16 Toshiba Corp 冷蔵庫
JP2006118825A (ja) * 2004-10-25 2006-05-11 Toshiba Corp 冷蔵庫
JP2007024421A (ja) * 2005-07-19 2007-02-01 Takagi Ind Co Ltd ミスト発生方法及びその装置
JP2009002590A (ja) * 2007-06-22 2009-01-08 Panasonic Corp 冷蔵庫および冷蔵庫に搭載される霧化装置
US20100223944A1 (en) * 2007-10-09 2010-09-09 Panasonic Corporation Refrigerator
US20160067368A1 (en) * 2013-04-30 2016-03-10 Areco Finances Et Technologie - Arfitec Nebulizer system for freshening the air
DE102013213206A1 (de) * 2013-07-05 2015-01-08 BSH Bosch und Siemens Hausgeräte GmbH Haushaltskältegerät mit einem im Innenraum ausgebildeten Lagerbereich und einer Befeuchtungsvorrichtung
DE102014017044A1 (de) 2013-11-26 2015-05-28 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
WO2016009127A1 (fr) * 2014-07-17 2016-01-21 Areco Finances Et Technologie - Arfitec Nébuliseur compact pour rafraîchir l'air

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EP3228964B1 (fr) 2021-06-16
ES2886611T3 (es) 2021-12-20

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