IT9021486U1 - REFRIGERATOR APPLIANCE, IN PARTICULAR "NO-FROST" REFRIGERATOR - Google Patents
REFRIGERATOR APPLIANCE, IN PARTICULAR "NO-FROST" REFRIGERATOR Download PDFInfo
- Publication number
- IT9021486U1 IT9021486U1 IT021486U IT2148690U IT9021486U1 IT 9021486 U1 IT9021486 U1 IT 9021486U1 IT 021486 U IT021486 U IT 021486U IT 2148690 U IT2148690 U IT 2148690U IT 9021486 U1 IT9021486 U1 IT 9021486U1
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- Italy
- Prior art keywords
- plate
- casing
- refrigerator
- appliance according
- offset
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000003570 air Substances 0.000 description 14
- 238000009413 insulation Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 210000001562 sternum Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- 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
- F25D23/003—General constructional features for cooling refrigerating machinery
-
- 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
- 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
- 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
- F25D17/065—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 with compartments at different temperatures
-
- 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
- F25D2317/065—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 return
- F25D2317/0653—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 return through the mullion
-
- 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
- F25D2317/067—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 air ducts
-
- 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
- F25D2400/04—Refrigerators with a horizontal mullion
-
- 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
- F25D2500/00—Problems to be solved
- F25D2500/02—Geometry problems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Defrosting Systems (AREA)
Description
DESCRIZIONE DESCRIPTION
L'innovazione riguarda un apparecchio refrige ràtore , in,,particolare .un frigorifero "no-frost", dotato di una carcassa termicamente isolata e di un gruppo motocompressore/refrigeratore, il cui condensatore, conformato come piastra in lamiera attrezzata con tubi, costituisce il rivestimento esterno della parete posteriore della carcassa, parete che sulla sua faccia interna è dotata di canali d'aria. The innovation relates to a refrigerating appliance, in particular a "no-frost" refrigerator, equipped with a thermally insulated casing and a motor-compressor / chiller unit, the condenser of which, shaped as a sheet metal plate equipped with pipes, constitutes the external coating of the rear wall of the casing, a wall which on its internal face is equipped with air channels.
Negli apparecchi refrigeratori del tipo menzionato, l'aria di raffreddamento, che viene fatta circolare nella carcassa con un ventilatore, tramite il vaporizzatore del gruppo refrigeratore, attraverso i vari scompartì di varia temperatura, viene guidata attraverso canali comandati da termostati e realizzati almeno in parte come rientranze ricavate dalla faccia interna della parete posteriore della carcassa. Per evitare che si abbiano perdite nei punti in cui lo spessore dello strato termoisolante della parete posteriore é ridotto dalle rientranze, è una pratica consueta progettare lo strato termoisolante in maniera tale che anche nei punti più sottili nel fondo dei canali si ottengano sufficienti vaiori di isolamento .termico. Ciò presenta,però,l 'in-_ conveniente che lo strato termoisolante ..è _sqvradimensionato nelle zone della parete posteriore che non -sono dotate_di canali per l'aria_e che _sono^di gran lunga più estese, per cui viene ad aversi un consumo di materiale termoisolante .considerevolmente. maggiore e, inoltre, lo spazio utile .della carcassa .viene a ridursi. Se come materiale termoisolante per la carcassa viene impiegato un espanso rigido di materiale plastico espanso in situ, a causa del grande spessore di parete che rimanda alla struttura convenzionale, sulla parete posteriore si ha un consumo inultimente elevato di materiale termoisolante. Ciò si traduce a sua volta in lunghi tempi di espansione e in un maggior carico per l'ambiente. Gli inconvenienti descritti si hanno soprattutto allorché la carcassa è rivestita sulla sua faccia posteriore con un condensatore atto a sottrarre calore e costituito da una piastra piana in lamiera attrezzata con.tubi. In chillers of the aforementioned type, the cooling air, which is circulated in the casing with a fan, through the vaporizer of the chiller group, through the various compartments of various temperatures, is guided through channels controlled by thermostats and realized at least in part as recesses made from the inner face of the rear wall of the casing. To avoid leaks in the points where the thickness of the thermal insulation layer of the rear wall is reduced by the recesses, it is common practice to design the thermal insulation layer in such a way that sufficient insulation values are obtained even in the thinnest points in the bottom of the ducts. .thermal. However, this presents the inconvenience that the heat-insulating layer is dimensioned in the areas of the rear wall which are not equipped with air channels and which are far more of heat-insulating material. considerably. moreover, the useful space of the carcass is reduced. If a rigid foam of in situ expanded plastic material is used as thermal insulation material for the casing, due to the large wall thickness which refers to the conventional structure, the rear wall results in an ultimately high consumption of thermal insulation material. This in turn translates into long expansion times and a greater burden on the environment. The disadvantages described above arise when the casing is coated on its rear face with a condenser suitable for removing heat and consisting of a flat sheet metal plate equipped with pipes.
Finalità della presente invenzione è perciò quello di perfezionare_gli apparecchi refrigeratori del tipo meglio indicato in apertura mediante semplici accorgimenti costruttivi ed evitare gli ^svantaggi che si hanno nel contesto della disposizione dei canali d'aria nella parete posteriore della carcassa rivestita esternamente con un condensatore piano .. The aim of the present invention is therefore to improve refrigeration appliances of the type best indicated in opening by means of simple constructive measures and to avoid the disadvantages that occur in the context of the arrangement of the air channels in the rear wall of the casing externally coated with a flat condenser. .
Questo scopo viene, secondo l'innovazione, conseguito in quanto la piastra_ in lamiera, almeno in, corrispondenza del canale d'aria di maggiori dimensioni, non. è attrezzata con tubi e. ivi presenta un , tratto .sfalsato verso l'esterno rispetto .al ..piano _ . della piastra in misura corrispondente almeno approssimativamente alla profondità del canale. This object is achieved, according to the invention, since the sheet metal plate, at least in correspondence with the larger air channel, does not. is equipped with pipes and. there it presents a section offset towards the outside with respect to the plane. of the plate to an extent corresponding at least approximately to the depth of the channel.
In tal modo è possibile in maniera semplice, con sufficiente spessore di isolamento in corrispondenza dei canali, economizzare materiale termoisolan-.te nei rimanenti tratti della parete posteriore poiché, a causa del tratto di piastra in lamiera sfaisato verso l'esterno, lo spessore della parete posteriore nelle zone rimanenti è limitato alla misura che è necessaria secondo la tecnica del freddo. Inoltre , grazie a questo accorgimento, essendo le dimensioni esterne della carcassa pressocché uguali, si ! può conseguire un aumento considerevole del loro contenuto utile. In this way it is possible in a simple way, with sufficient insulation thickness in correspondence with the channels, to save heat-insulating material in the remaining sections of the rear wall since, due to the section of the sheet metal plate displaced towards the outside, the thickness of the rear wall in the remaining areas is limited to the extent that is necessary according to the cold technique. Moreover, thanks to this expedient, since the external dimensions of the casing are almost the same, yes! a considerable increase in their useful content can be achieved.
Una struttura particolarmente .semplice si ha quando, secondo una preferita esecuzione dell'oggetto dell'innovazione, il tratto sfalsato verso l'e- . A particularly simple structure occurs when, according to a preferred embodiment of the object of the invention, the section offset towards the
sterno è realizzato a mo' di calotta mediante stampaggio. sternum is made like a shell by molding.
Può però essere vantaggioso prevedere, secondo una soluzione alternativa, che il tratto sfalsato verso l'esterno sia ricavato dalla piastra'e chiuso mediante inserimento di un pezzo tipo calotta. However, it may be advantageous to provide, according to an alternative solution, that the portion offset towards the outside is obtained from the plate and closed by inserting a piece such as a cap.
II pezzo tipo calotta può qui essere costituito sia da lamiera metallica che da materiale plasticoj. The cap-like piece can be made up of either a metal sheet or a plastic material.
0 da materiale stampato per compressione. Onde evitare che in corrispondenza del pezzo inserito possano insorgere problemi per il depositarsi di umidità proveniente dall'aria ambiente, viene però data la prer ferenza ad un pezzo in lamiera metallica a causa della migliore conduzione termica. 0 from compression molded material. In order to avoid that problems may arise in correspondence with the inserted piece due to the deposition of humidity coming from the ambient air, preference is given to a piece in metal sheet due to the better thermal conduction.
Ulteriori vantaggiose caratteristiche dell’in-, novazione riportate nelle rivendicazioni si rilevano dalla seguente descrizione, nella quale si fa riferìmento al frigorifero "no-frost" rappresentato negli; acclusi disegni come esempio semplificato di attuazione . Further advantageous characteristics of the innovation reported in the claims can be seen from the following description, in which reference is made to the "no-frost" refrigerator represented in; accompanying drawings as a simplified example of implementation.
La Fig. .1 mostra in sezione schematica una vi.-sta laterale di un frigorifero "no-frost" attrezzato con un gruppo compressore/refrigeratore e la cui carcassa. è rivestita, sulla parte posteriore, di un conpensatore realizzato come piastra in lamiera attrezIzata con tubi, Fig. *** 1 shows in schematic section a side view of a "no-frost" refrigerator equipped with a compressor / chiller unit and the casing of which. it is covered, on the rear part, with a conpensatore realized as a plate in sheet metal equipped with pipes,
la Fig. 2 mostra, in vista dal retro, il condensatore come particolare, Fig. 2 shows, in view from the rear, the condenser as a detail,
la Fig. 3 mostra in sezione semplificata il condensatore ..della Fig.2,visto dall'alto,. Fig. 3 shows in simplified section the condenser of Fig. 2, seen from above,.
la Fig. 4 mostra in sezione orizzontale semplificata una carcassa, dotata sulla sua parete posteriore di canali per l'aria, di un frigorifero "nofrost" in esecuzione convenzionale, e ' Fig. 4 shows a simplified horizontal section of a casing, equipped on its rear wall with air channels, with a conventional "nofrost" refrigerator;
la Fig. 5 mostra una vista bella carcassa secondo la Fig. 4, rivestita sulla sua parete posteriore con un condensatore realizzato secondo l'innovazione. Fig. 5 shows a beautiful view of the casing according to Fig. 4, coated on its rear wall with a capacitor made according to the invention.
Un frigorifero "no-frost" 10,rappresentato in vista laterale con rappresentazione in sezione schematica, presenta una carcassa termo.isolata 11 attrezzata in modo convenzionale con scomparti di diversa temperatura accessibili attraverso porte separate 12 e 13 e, rispettivamente, attraverso facciate 14 e 15 di cassetti. Detti scomparti sono collegati fra loro mediante canali d'aria non indicati nei particolari, comandati a termostato e attraversati dall'aria nella direzione indicata dalle frecce segnate nella fig. 1. Il frigorifero "no-frost" 10 è attrézzato con un gruppo compressore/refrigeratore di tipo consueto, il cui motocompressore 16 completamente chiuso è montato in una nicchia 17 situata nella zona posteriore della carcassa 11 vicina al fondo. A "frost-free" refrigerator 10, shown in side view with schematic sectional representation, has a thermo-insulated casing 11 conventionally equipped with compartments of different temperatures accessible through separate doors 12 and 13 and, respectively, through facades 14 and 15 of drawers. Said compartments are connected to each other by means of air channels not indicated in the details, thermostatically controlled and crossed by the air in the direction indicated by the arrows marked in fig. 1. The "no-frost" refrigerator 10 is equipped with a compressor / refrigerator unit of the usual type, the completely closed motor-compressor 16 of which is mounted in a recess 17 located in the rear region of the casing 11 near the bottom.
Il gruppo motocompressore/refrigeratore pre inoltre, un condensatore 18 che è realizzato come piastra in lamiera attrezzata con tubi e che costituisce il rivestimento esterno della parete posteriore .della carcassa 11 dotata sulla faccia interna di canali d'aria 19 e 20. Il gruppo motocompressore/ refrigeratore è, inoltre, attrezzato con un vaporizzatore 21 che è disposto in un fondo intermedio po_ sto all'altezza del canale d'aria 19 tra i due scomparti situati più in alto e attrezzato con canali d'aria non illustrati nei particolari, e che è situato nella corrente d'aria di un ventilatore 22 che guida l'aria raffreddata tramite il sistema di ; canali del frigorifero "no-frost" comandato termostaticamente e la fa circolare .nei singoli scompar- . ti aventi temperature diverse in conformità alle frecce ivi segnate._ Il condensatore 18 è come si può vedere in particolare dalle Figg. 2 e 3, realizzato come pia stra in lamiera 23 attrezzata con tubi, attraverso' la cui faccia interna coniugata alla parete posteriore della carcassa 11 corre un condotto forzato a forma di greca, il quale porta il fluido refrigerante compresso dal motore. Il condotto forzato 24 è collegato in contatto di termoconduzione alla piastra di lamiera in modo convenzionale, ad esempio mediante un foglio autoadesivo di alluminio sovrapposto. La piastra di lamiera 23 non è dotata di tubi in corrispondenza del canale d'aria 19 e ivi presenta un tratto sfalsato verso l'esterno a partire; dal piano della piastra in misura corrispondente alla profondità del canale 19 nella parete posteriore della carcassa 11. Il tratto sfalsato verso l'esterno è configurato mediante stampaggio a mo' di calotta, come si può rilevare in particolare dalle Figg. The motor-compressor / chiller unit also has a condenser 18 which is made as a sheet metal plate equipped with pipes and which constitutes the external coating of the rear wall of the casing 11 equipped on the internal face with air channels 19 and 20. The motor-compressor unit The cooler is also equipped with a vaporizer 21 which is arranged in an intermediate bottom placed at the height of the air channel 19 between the two compartments located higher up and equipped with air channels not shown in detail, and which is located in the air stream of a fan 22 which guides the cooled air through the system; channels of the thermostatically controlled "frost-free" refrigerator and circulates it in the individual compartments. ti having different temperatures in accordance with the arrows marked therein. The capacitor 18 is as can be seen in particular from Figs. 2 and 3, made as a sheet metal plate 23 equipped with pipes, through the internal face of which mating to the rear wall of the casing 11 runs a forced duct in the shape of a Greek, which carries the refrigerant fluid compressed by the engine. The forced conduit 24 is connected in thermal conducting contact to the sheet plate in a conventional manner, for example by means of an overlapping self-adhesive aluminum sheet. The sheet metal plate 23 is not provided with pipes in correspondence with the air channel 19 and therein has a section offset towards the outside starting; from the plane of the plate to an extent corresponding to the depth of the channel 19 in the rear wall of the casing 11. The portion offset towards the outside is configured by molding in the form of a cap, as can be seen in particular from Figs.
1, 3 e 5, e occupa nell'esempio di attuazione raffigurato soltanto la zona centrale della piastra 23.. Sui propri bordi verticali, la piastra 23 è dotata oi piegature ad angolo retto 26 sporgenti all'indietro, il cui sfalsamento rispetto al piano della piastra è maggiore del suo tratto 25 sfalsato verso l' esterno. In tal modo, sul retro del frigorifero "no-frost" montato con la sua carcassa 11 davanti ad una parete viene formato un pozzo 27 tipo camino, in cui si realizza una corrente di convezione indotta dal calore del condensatore e che raffredda il ; condensatore 13. Poiché la calotta occuua nella piastra di lamiera soltanto il tratto centrale del pozzo tipo camino 27 e, inoltre, sporge meno delle piegature a gomito 26 sui bordi verticali della piastra 23* nel pozzo 27 rimane in questo punto una se-.zione verticale sufficientemente grande per la perfetta aereazione o raffreddamento del condensatore 18, Nella Fig. 4, la parete posteriore della carcassa 11 è rivestita esternamente, in modo convenzionale, con un condensatore'piano; ' Come "si "può da ciò rilevare, con la nuova conformazione della parete posteriore, a parità di dimensioni, si ha rispetto a tale struttura convenzionale, un notevole aumento dello spazio utile giacché nella struttura ; secondo l'innovazione la parete della carcassa 11 e la profondità "a" del canale 19 sono sfalsate verso l’esterno. Inoltre, rispetto alla stessa si ha, come illustrato in apertura, un considerevole risparmio di materiale termoisolante. 1, 3 and 5, and occupies in the embodiment shown only the central area of the plate 23. On its vertical edges, the plate 23 is provided with right-angled bends 26 projecting backwards, the offset of which with respect to the plane of the plate is greater than its portion 25 offset towards the outside. In this way, on the back of the "no-frost" refrigerator mounted with its casing 11 in front of a wall, a chimney-like pit 27 is formed, in which a convection current induced by the heat of the condenser is created and which cools the; condenser 13. Since the cap occupies in the sheet plate only the central section of the chimney-like well 27 and, moreover, protrudes less than the elbows 26 on the vertical edges of the plate 23, in the well 27 a section remains at this point. vertical sufficiently large for perfect ventilation or cooling of the condenser 18. In Fig. 4, the rear wall of the casing 11 is externally coated, in a conventional manner, with a flat condenser; As can be seen from this, with the new conformation of the rear wall, with the same dimensions, there is a considerable increase in the useful space with respect to this conventional structure, since it is in the structure; according to the innovation, the wall of the casing 11 and the depth "a" of the channel 19 are offset towards the outside. Furthermore, compared to the same there is, as illustrated at the beginning, a considerable saving of thermal insulating material.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8909029U DE8909029U1 (en) | 1989-07-25 | 1989-07-25 | Cooling device, especially no-frost refrigerator |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| IT9021486V0 IT9021486V0 (en) | 1990-07-13 |
| IT9021486U1 true IT9021486U1 (en) | 1992-01-13 |
| IT220010Z2 IT220010Z2 (en) | 1993-06-03 |
Family
ID=6841411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2148690U IT220010Z2 (en) | 1989-07-25 | 1990-07-13 | REFRIGERATOR APPLIANCE, IN PARTICULAR "NO-FROST" REFRIGERATOR |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE8909029U1 (en) |
| FR (1) | FR2650377B1 (en) |
| IT (1) | IT220010Z2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004048476A1 (en) | 2004-10-05 | 2006-04-13 | BSH Bosch und Siemens Hausgeräte GmbH | The refrigerator |
| KR101649624B1 (en) * | 2009-07-15 | 2016-08-19 | 엘지전자 주식회사 | Refrigerator |
| DE102014218411A1 (en) * | 2014-09-15 | 2016-03-17 | BSH Hausgeräte GmbH | Refrigerating appliance with several storage chambers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2621490A (en) * | 1950-05-05 | 1952-12-16 | Int Harvester Co | Refrigerant condenser |
| FI55086C (en) * | 1976-03-10 | 1979-05-10 | T Mi Pentti Porkka | KONSTRUKTIONSENHET I KYLRUMMET |
| US4539819A (en) * | 1984-09-19 | 1985-09-10 | Amana Refrigeration, Inc. | Reversible meat keeper for refrigerator |
-
1989
- 1989-07-25 DE DE8909029U patent/DE8909029U1/en not_active Expired
-
1990
- 1990-07-13 IT IT2148690U patent/IT220010Z2/en active IP Right Grant
- 1990-07-24 FR FR9009418A patent/FR2650377B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE8909029U1 (en) | 1989-09-07 |
| FR2650377B1 (en) | 1994-03-18 |
| IT9021486V0 (en) | 1990-07-13 |
| FR2650377A1 (en) | 1991-02-01 |
| IT220010Z2 (en) | 1993-06-03 |
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| Date | Code | Title | Description |
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| 0001 | Granted |