ITVA20040020U1 - NO-FROST REFRIGERATOR - Google Patents
NO-FROST REFRIGERATOR Download PDFInfo
- Publication number
- ITVA20040020U1 ITVA20040020U1 IT000020U ITVA20040020U ITVA20040020U1 IT VA20040020 U1 ITVA20040020 U1 IT VA20040020U1 IT 000020 U IT000020 U IT 000020U IT VA20040020 U ITVA20040020 U IT VA20040020U IT VA20040020 U1 ITVA20040020 U1 IT VA20040020U1
- Authority
- IT
- Italy
- Prior art keywords
- air
- cavity
- frame
- refrigerator
- shelf
- Prior art date
Links
- 238000009827 uniform distribution Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 235000013305 food Nutrition 0.000 description 5
- 235000012055 fruits and vegetables Nutrition 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
-
- 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
- F25D2317/06—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 with forced air circulation
- F25D2317/061—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 with forced air circulation through special compartments
-
- 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
- F25D2317/06—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 with forced air circulation
- F25D2317/066—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 with forced air circulation characterised by the air supply
- F25D2317/0661—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 with forced air circulation characterised by the air supply from the bottom
-
- 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
- F25D2317/06—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 with forced air circulation
- F25D2317/066—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 with forced air circulation characterised by the air supply
- F25D2317/0665—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 with forced air circulation characterised by the air supply from the top
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/06—Refrigerators with a vertical mullion
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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Defrosting Systems (AREA)
Description
presente trovato riguarda un frigorifero ventilato, del tipo comprendente almeno una cavità in cui è disposta una pluralità di ripiani e provvisto di una canalizzazione per l'immissione d aria refrigerata in detta cavità. Per frigorifero ventilato si intende qui qualsiasi tipo di elettrodomestico per la refrigerazinoe e conservazione di prodotti alimentari in cui viene fatta circolare aria, per mezzo di una ventola, attarverso un evaporatore collegato ad un circuito di refrigerazione. Tali frigoriferi, indicati comunemente con il termine “no-frost”, presentano normalmente almeno un paio di cavità distinte , una prima cavità atta a fungere da comparto di congelamento (o “freezer”) ed Una seconda cavità per la conservazione di alimenti freschi (il cosiddetto comparto “frigo”). L’aria refrigerata a valle dell’evaporatore viene alimentata alla seconda cavità attraverso bocchette di immissione di aria fredda, e aria meno fredda all’interno della seconda cavità viene prelevata attraverso una o più bocchette di prelievo al fine di convogliarla verso l’evaporatore, The present invention relates to a ventilated refrigerator, of the type comprising at least one cavity in which a plurality of shelves is arranged and provided with a channel for the introduction of refrigerated air into said cavity. By ventilated refrigerator we mean here any type of household appliance for the refrigeration and storage of food products in which air is circulated, by means of a fan, through an evaporator connected to a refrigeration circuit. These refrigerators, commonly referred to as "no-frost", normally have at least a couple of distinct cavities, a first cavity designed to act as a freezing compartment (or "freezer") and a second cavity for storing fresh food ( the so-called “fridge” compartment). The refrigerated air downstream of the evaporator is fed to the second cavity through cold air inlets, and less cold air inside the second cavity is drawn through one or more intake vents in order to convey it to the evaporator,
In tale tipo di elettrodomestici un punto caratteristico di immissione di aria fredda è disposto in modo tale che il flusso di aria sia diretto all’interno di un cassetto estraibile per la conservazione di frutta e verdura e/o carne. Infatti è ben noto che per una corretta conservazione di tali alimenti è necessaria una temperatura più bassa rispetto alla temepratura media nel comparto frigo. Si è però riscontrato che tale tipo di alimentazione può portare allo sviluppo indesiderato di ghiaccio o brina sugli alimenti contenuti in detto cassetto, con conseguente decadimento delle prestazioni di conservazione. In this type of appliance, a characteristic point of inlet of cold air is arranged in such a way that the flow of air is directed inside a removable drawer for storing fruit and vegetables and / or meat. In fact, it is well known that for a correct conservation of such foods a lower temperature is required than the average temperature in the refrigerator compartment. However, it has been found that this type of feeding can lead to the undesired development of ice or frost on the foods contained in said drawer, with consequent decay of the conservation performance.
Scopo dei presente trovato è il fornire un frigorifero del tipo specificato all’inizio della descrizione che non presenti il suddetto inconveniente e che risulti di semplice ed economica realizzazione. The purpose of the present invention is to provide a refrigerator of the type specified at the beginning of the description which does not present the aforementioned drawback and which is simple and economical to manufacture.
Secondo il trovato, tale scopo è raggiunto grazie al fatto che almeno uno di detti ripiani comprende una cornice provvista di un elemento di raccordo a detta canalizzazione e mezzi per la distribuzione uniforme deH’aria nella cavità. According to the invention, this object is achieved thanks to the fact that at least one of said shelves comprises a frame provided with an element for connection to said channel and means for the uniform distribution of the air in the cavity.
Preferibilmente la cornice del ripiano è cava ed in detta cornice sono definite una pluralità di apertura per la distribuzione uniforme deH’aria. Preferably the frame of the shelf is hollow and a plurality of openings are defined in said frame for the uniform distribution of the air.
Secondo una variànte del trovato, la cornice delimita un’intercapedine la cui parete inferiore comprende una pluralità di aperture per la distribuzione deN’aria. According to a variant of the invention, the frame delimits an interspace whose lower wall includes a plurality of openings for the distribution of air.
Ulteriori vantaggi e caratteristiche di un frigorifero secondo il trovato risulteranno evidenti dalla descrizione dettagliata seguente, fornita a puro titolo di esempio non limitativo, con riferimento ai disegni allegati in cui: Further advantages and characteristics of a refrigerator according to the invention will become clear from the following detailed description, provided purely by way of non-limiting example, with reference to the attached drawings in which:
la figura 1 è una vista prospettica di un frigorifero no-frost in cui trova applicazione il presente trovato; Figure 1 is a perspective view of a frost-free refrigerator in which the present invention is applied;
la figura 2 è una vista prospettica di un particolare del frigorifero di figura 1, realizzato secondo la tecnica nota; Figure 2 is a perspective view of a detail of the refrigerator of Figure 1, made according to the known art;
la figura 3 e una vista in sezione trasversale di una cavità del frigorifero di figura 1 , in Cui è utilizzato un ripiano secondo il trovato; Figure 3 is a cross-sectional view of a cavity of the refrigerator of Figure 1, in which a shelf according to the invention is used;
la figura 4 è una vista prospettica esplosa del ripiano di figura 3; Figure 4 is an exploded perspective view of the shelf of Figure 3;
la figura 5 illustra il ripiano di figura 4 nella sua configurazione assiemata; la figura 6 è una vista prospettica di un ripiano realizzato secondo una variante del trovato; e Figure 5 illustrates the shelf of Figure 4 in its assembled configuration; Figure 6 is a perspective view of a shelf made according to a variant of the invention; And
la figura 7 è una vista in sezione secondo la linea VII-VII della figura 6. Figure 7 is a sectional view along the line VII-VII of Figure 6.
Con riferimento ai disegni, con 10 è indicato nel suo insieme un frigorifero ventilato (“no-frost”) del tipo cosiddetto “side-by-side”, in cui una cavità freezer 10a è affiancata ad una cavità frigo 10b. In quest’ultima sono disposti una pluralità di ripiani in vetro 12 per prodotti alimentari. Un ripano 14, disposto inferiormente alla cavità, definisce assieme ad un sottostante cassetto 16 uno spazio chiuso per la conservazione di frutta e verdura e/o carne. With reference to the drawings, the number 10 indicates as a whole a ventilated refrigerator ("no-frost") of the so-called "side-by-side" type, in which a freezer cavity 10a is flanked by a refrigerator cavity 10b. A plurality of glass shelves 12 for food products are arranged in the latter. A shelf 14, arranged below the cavity, defines together with an underlying drawer 16 a closed space for storing fruit and vegetables and / or meat.
Secondo la tecnica nota illustrata in figura 2, sulla cornice del ripiano 14 è definita un’apertura 15 atta a disporsi, nella configurazione montata del ripiano, in corrispondenza di una bocchetta 18 di immissione di aria fredda, aria proveniente da una canalizzazlione C interna ad una parete divisoria W tra le due cavità 10a e 10b. According to the known technique illustrated in Figure 2, an opening 15 is defined on the frame of the shelf 14, suitable for arranging itself, in the mounted configuration of the shelf, in correspondence with an inlet 18 for the introduction of cold air, air coming from an internal duct C a dividing wall W between the two cavities 10a and 10b.
Secondo il trovato (figura 3), la cornice del ripiano 14, indicata nei disegni con il riferimento 20, presenta tre lati cavi, ed in particolare il lato di fondo ed i fianchi adiacenti alle paréti laterali della cavità. La sezione dei tre lati cavi della cornice 20 presenta una sezione a guisa di triangolo rettangolo in cui la faccia inclinata 20a, corrispondente all'ipotenusa, presenta una pluralità di fori 22 per la distribuzione uniforme dell’aria verso l'interno del cassetto 16. In tal modo si previene il sottoraffreddamento di una zona del cassetto (tipicamente la zona immediatamente a valle della bocchetta 18 nel caso di figura 2). Il raccordo tra la cornice 20 e la canalizzazione C è realizzato mediante un elemento a guisa di bocchettone 24 atto ad accoppiarsi sostanzialmente a tenuta con la canalizzazione C. Tale elemento 24 può essere realizzato integralmente alla cornice 20, o può essere realizzato in materiale elastomerico e successivamente accoppiato a detta cornice. Com’è chiaramente illustrato in figura 4, per la realizzazione della cornice cava 20 è vantaggioso utilizzare un componente a C, ad esempio realizzato per stampaggio ad iniezione ed indicato in figura 4 con il riferimento 26, successivamente assemblato ad esempio per incollaggio o per saldatura ad ultrasoni alle pareti orizzontali e verticali della cornice stessa. According to the invention (Figure 3), the frame of the shelf 14, indicated in the drawings with the reference number 20, has three hollow sides, and in particular the bottom side and the sides adjacent to the lateral sides of the cavity. The section of the three hollow sides of the frame 20 has a section in the form of a right-angled triangle in which the inclined face 20a, corresponding to the hypotenuse, has a plurality of holes 22 for the uniform distribution of the air towards the interior of the drawer 16. In this way, the undercooling of an area of the drawer is prevented (typically the area immediately downstream of the opening 18 in the case of Figure 2). The connection between the frame 20 and the duct C is made by means of an element in the form of a union 24 adapted to be coupled substantially tightly with the duct C. This element 24 can be made integrally with the frame 20, or it can be made of elastomeric material and subsequently coupled to said frame. As is clearly illustrated in figure 4, for the realization of the hollow frame 20 it is advantageous to use a C-shaped component, for example made by injection molding and indicated in figure 4 with the reference number 26, subsequently assembled for example by gluing or welding ultrasound to the horizontal and vertical walls of the frame itself.
Secondo una variante del trovato, in alternativa alla cornice cava 20 è possibile utilizzare una cornice 28 (figure 6-7) atta a delimitare perimetralmente un’intercapedine K. Quest’ultima è definita, a guisa di doppio vetro, da una lastra superiore 30 e dà una latra inferiore 32 (anch’essa preferibilmente di materiale trasparente) dotata di una pluralità di fori 34 regolarmente distribuiti per l’immissione di aria fredda nel cassetto 16. According to a variant of the invention, as an alternative to the hollow frame 20, it is possible to use a frame 28 (figures 6-7) able to delimit an interspace K on the perimeter. The latter is defined, in the manner of double glazing, by an upper plate 30 and gives a lower side 32 (also preferably of transparent material) provided with a plurality of holes 34 regularly distributed for the introduction of cold air into the drawer 16.
Naturalmente è possibile prevedere altre varianti alle soluzioni sopra descritte, ad esempio un ripiano in cui le aperture di distribuzione deH’aria siano realizzate a guisa di fessure rettilinee o sagomate. Anche tali ulteriori varianti risultano comprese ne ’ambito del presente trovato, in quanto realizzano una distribuzione uniforme di aria all’interno della cavità. Inoltre, sebbene sia stato illustrato un frigorifero “no-frost” del tipo “side-by-side”, il trovato può essere vantaggiosamente applicato su altre tipologie di frigorifero, ad esempio dei tipi cosiddetti doppia porta o combinato, in cui il vano freezer ed il vano frigo sono fra loro sovrapposti. Of course, it is possible to provide other variants to the solutions described above, for example a shelf in which the air distribution openings are made in the manner of straight or shaped slots. These further variants are also included within the scope of the present invention, as they achieve a uniform distribution of air inside the cavity. Furthermore, although a "no-frost" refrigerator of the "side-by-side" type has been illustrated, the invention can be advantageously applied to other types of refrigerator, for example of the so-called double door or combined types, in which the freezer compartment and the refrigerator compartment are superimposed on each other.
Claims (1)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000020U ITVA20040020U1 (en) | 2004-12-07 | 2004-12-07 | NO-FROST REFRIGERATOR |
| EP05811096A EP1825202A1 (en) | 2004-12-07 | 2005-11-22 | No-frost refrigerator |
| BRPI0518417-7A BRPI0518417A2 (en) | 2004-12-07 | 2005-11-22 | ventilated refrigerator |
| PCT/EP2005/056131 WO2006061319A1 (en) | 2004-12-07 | 2005-11-22 | No-frost refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000020U ITVA20040020U1 (en) | 2004-12-07 | 2004-12-07 | NO-FROST REFRIGERATOR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITVA20040020U1 true ITVA20040020U1 (en) | 2005-03-07 |
Family
ID=36577680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000020U ITVA20040020U1 (en) | 2004-12-07 | 2004-12-07 | NO-FROST REFRIGERATOR |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1825202A1 (en) |
| BR (1) | BRPI0518417A2 (en) |
| IT (1) | ITVA20040020U1 (en) |
| WO (1) | WO2006061319A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749911B (en) * | 2008-11-28 | 2012-11-07 | 博西华家用电器有限公司 | Refrigerator |
| CN109798727B (en) * | 2019-03-21 | 2021-05-28 | 合肥华凌股份有限公司 | Refrigeration equipment, storage box and defrosting method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3169383A (en) * | 1958-11-25 | 1965-02-16 | Whirlpool Co | Refrigerator with hollow cold shelf |
| JPS598749B2 (en) * | 1978-02-06 | 1984-02-27 | 三洋電機株式会社 | refrigerator |
| US5722252A (en) * | 1995-10-13 | 1998-03-03 | Lg Electronics, Inc. | Cooling air distribution apparatus for refrigerator |
| JPH11257830A (en) * | 1998-03-12 | 1999-09-24 | Sanyo Electric Co Ltd | Open showcase |
| JP3863699B2 (en) * | 2000-03-31 | 2006-12-27 | 三洋電機株式会社 | refrigerator |
-
2004
- 2004-12-07 IT IT000020U patent/ITVA20040020U1/en unknown
-
2005
- 2005-11-22 EP EP05811096A patent/EP1825202A1/en not_active Withdrawn
- 2005-11-22 WO PCT/EP2005/056131 patent/WO2006061319A1/en active Application Filing
- 2005-11-22 BR BRPI0518417-7A patent/BRPI0518417A2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0518417A2 (en) | 2008-11-25 |
| WO2006061319A1 (en) | 2006-06-15 |
| EP1825202A1 (en) | 2007-08-29 |
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