DK150124B - METHOD AND DEVICE FOR DEFINING A COOLED OR FREEZE DISK - Google Patents
METHOD AND DEVICE FOR DEFINING A COOLED OR FREEZE DISK Download PDFInfo
- Publication number
- DK150124B DK150124B DK023378AA DK23378A DK150124B DK 150124 B DK150124 B DK 150124B DK 023378A A DK023378A A DK 023378AA DK 23378 A DK23378 A DK 23378A DK 150124 B DK150124 B DK 150124B
- Authority
- DK
- Denmark
- Prior art keywords
- air
- defrosting
- duct
- normal operation
- flow
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
- F25D21/125—Removing frost by hot-fluid circulating system separate from the refrigerant system the hot fluid being ambient air
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0439—Cases or cabinets of the open type
- A47F3/0443—Cases or cabinets of the open type with forced air circulation
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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
- 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
- F25D2317/068—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 fans
- F25D2317/0684—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 fans the fans allowing rotation in reverse direction
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Defrosting Systems (AREA)
- Freezers Or Refrigerated Showcases (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Packaging For Recording Disks (AREA)
- Laminated Bodies (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Description
150124 i150124 i
Den foreliggende opfindelse angår en fremgangsmåde til at afrime køleelementer i en køle- eller frysedisk af den i krav l's indledning angivne art samt et apparat til at gennemføre fremgangsmåden og af den i krav 2's indledning angivne 5 art.The present invention relates to a method of defrosting cooling elements in a refrigeration or freezer counter of the kind set forth in the preamble of claim 1, and an apparatus for carrying out the method and of the kind specified in the preamble of claim 2.
En sådan fremgangsmåde og et sådant apparat kendes f.eks. fra GB patentskrift nr. 1.368.872. Ved at luften ved denne kendte teknik under afrimningen bringes til at strømme i 10 luftkanalen i modsat retning i forhold til strømretningen under diskens normale drift til ledeorganer ved kanalens ene ende, som styrer den forbrugte afrimningsluft væk fra varerne, får man den fordel, at varerne ikke udsættes for nogen varm afrimningsluft, som kan optø varerne under afrim-15 ningen.Such a method and apparatus is known e.g. from GB Patent No. 1,368,872. By causing the air in this known technique during defrost to flow in the air duct in the opposite direction to the flow direction during the normal operation of the disc to conductors at one end of the duct which control the defrosting air consumed away from the goods, the advantage is obtained that the goods not be exposed to any hot defrosting air which can thaw the goods during defrosting.
Luften til afrimningen tages ved den kendte teknik ind fra den omgivende rumluft. Kun at vende strømretningen i luftkanalen, således at varm rumluft bringes til at strømme gennem 20 køleelementerne, er ikke tilstrækkelig til at frembringe en så hurtig afrimning af køleelementerne, at varerne ikke begynder at tø og tage skade. Derfor er der ved den nævnte teknik anbragt en separat luftvarmer i kanalen, hvilken luftvarmer sattes i drift, når afrimningen skal foregå.The air for defrosting is taken in by the known technique from the ambient room air. Only reversing the direction of flow in the air duct so that warm room air flows through the cooling elements is not sufficient to produce such a rapid defrost of the cooling elements that the goods do not begin to thaw and damage. Therefore, in the aforementioned technique, a separate air heater is arranged in the duct, which air heater was put into operation when defrosting is to take place.
2525
En sådan luftvarmer medfører ulemper, idet den sammen med de tilhørende nødvendige styreorganer fordyrer disken og desuden kræver en betragtelig energi under afrimningen.Such an air heater causes disadvantages in that it, together with the associated necessary control means, expensiveens the disk and also requires considerable energy during defrosting.
30 Det er den foreliggende opfindelses formål at undgå de nævnte ulemper ved hjælp af meget enkle og billige midler, hvilket formål tilgodeses ved, at den indledningsvist omtalte fremgangsmåde henholdsvis det indledningsvist omtalte apparat er ejendommelige ved det i den kendetegnende del af krav 35 1 henholdsvis krav 2 anførte, hvorved den omgivende rumluft uden tilsat varme fra en luftvarmer udnyttes til at frembringe en hurtig afrimning og dette sker ved, at der ved fremgangsmåden ifølge opfindelsen under afrimningen cirkule- 150124 2 res en større luftmsngde pr. tidsenhed end ved normal drift, hvilken luftmsngde fortrinsvis er to til fire gange større, og ved at bissermotorerne ved apparatet ifølge opfindelsen er udformet til under normal drift at arbejde med en lavere 5 hastighed, som giver en lavere luftkapacitet, og er udformet til ved afrimning at arbejde med en større hastighed, som giver en større luftkapacitet.It is an object of the present invention to avoid said drawbacks by very simple and inexpensive means, which object is provided by the fact that the method and the device mentioned in the preamble of the invention are characterized by the features of claim 35 and claim 1 respectively. 2, whereby the ambient room air without the addition of heat from an air heater is utilized to produce a rapid defrost, and this is done by circulating a larger amount of air per unit during the defrosting process. unit of time than in normal operation, which air volume is preferably two to four times greater, and in that the bit motors of the apparatus according to the invention are designed to operate at a lower speed, which gives a lower air capacity, and is designed for defrosting during normal operation. to work at a higher speed, which gives a higher air capacity.
Det skal navnes, at det fra US patentskrift nr. 3.226.945 10 i og for sig er kendt at afrime en køle- eller frysedisk med uopvarmet rumluft. Luftstrømmen forøges imidlertid ikke ved afrimningen, som derfor vil tage en betragtelig længere tid end som muliggjort ved den foreliggende opfindelse.It should be noted that US Patent No. 3,226,945 10 is known per se to defrost a cooling or freezer counter with unheated room air. However, the air flow is not increased by defrosting, which will therefore take a considerably longer time than made possible by the present invention.
15 Nedenfor forklares apparatet ifølge opfindelsen under henvis ning til tegningen, hvor fig. 1 viser en frysedisk set fra siden delvis i snit, og 20 fig. 2 viser det samme for en ændret udførelsesform.15 The apparatus according to the invention is explained below with reference to the drawing, in which fig. 1 is a side sectional view of a freezer counter, and FIG. 2 shows the same for a changed embodiment.
Den i fig. 1 viste frysedisk har to endevsgge 10, en forvåg 11, en bagvæg 12 og en bund 13. Alle disse dele er forsynet med hensigtsmæssig varmeisolering. Disken står med fødder 25 14,15 på et gulv 16. Da disken er beregnet til at blive anbragt i en forretning på en sådan måde, at den passeres af kunder på højre side i figuren, er den forreste væg 11 lav, men har en øvre del 17 af isoleringsglas, som medfører, at man lettere kan se diskens indhold. I denne findes en 30 af plader 18,19,20 udført kasse for frosne varer 21.The FIG. 1, two end walls 10, a front wall 11, a rear wall 12 and a bottom 13. have all of these parts provided with appropriate thermal insulation. The counter stands with feet 25 14,15 on a floor 16. Since the counter is intended to be placed in a store in such a way that it is passed by customers on the right side of the figure, the front wall 11 is low but has a upper part 17 of insulating glass, which makes it easier to see the contents of the disc. This contains a 30 of plates 18,19,20 box of frozen goods 21.
Kassen har en sådan form og placering i forhold til diskens vægge, at en luftkanal 22 er dannet imellem kassen og væggene 11,12 samt diskens bund 13. Under kassen indeholder luftkana-35 len 22 en af en motor 23 dreven blaser 24 samt et køleelement 25, som kan være fremstillet på i og for sig kendt måde, og derfor ikke vises i detaljer. Køleelementet kan bestå af rørspiraler med flanger og være tilsluttet en på i og 3 150124 for sig kendt måde udformet kølemaskine, som cirkulerer et kølemedium gennem rørspiralerne.The box has such a shape and position with respect to the walls of the disc that an air duct 22 is formed between the box and the walls 11, 12 and the bottom of the disc 13. Under the box, the air duct 22 contains a blower 24 driven by a motor 23 and a cooling element. 25, which may be manufactured in a manner known per se, and therefore not shown in detail. The cooling element may consist of pipe spirals with flanges and be connected to a cooling machine, known in a manner known per se, which circulates a cooling medium through the pipe spirals.
Luftkanalen 22's bund hælder imod et afløb 26 for vand, 5 som dannes ved afrimning af køleelementet 25. Bundafløbet 26 er indrettet til at forbindes med et afløbssystem.The bottom of the air duct 22 slopes against a drain 26 for water 5 which is formed by defrosting the cooling element 25. The bottom drain 26 is arranged to be connected to a drain system.
Under normal drift af frysedisken arbejder blæseren 24 i en sådan retning, at luften i overensstemmelse med de fuldt 10 optrukne pile 27 suges ind i luftkanalen 22 på figurens højre øvre side ned mod blæseren, igennem denne og gennem køleelementet 25, hvorefter den passerer opad mellem diskens bagvæg 12 og kassen 18,19,20 med varer for derefter ved figurens venstre øvre side at blive presset ud gennem ledeor-15 ganer 28 over varerne i disken i vandret retning. Luften styres her således, at den rettes imod luftindtaget til kanalen på figurens højre side.During normal operation of the freezer counter, the fan 24 operates in such a way that, in accordance with the fully drawn arrows 27, the air is sucked into the air duct 22 on the right upper side of the figure down towards the fan, through it and through the cooling element 25, after which it passes upwards between the back wall 12 of the disc and the box 18,19,20 with goods, to be then pressed out at the left upper side of the figure through guide members 28 over the goods in the disc in a horizontal direction. The air is controlled here so that it is directed towards the air inlet to the duct on the right side of the figure.
Selv om ledeorganerne 28 udformes rigtigt, og luftmængde i 20 og lufthastighed er godt afbalancerede, kan en vis indblanding af varm fugtig luft fra omgivelserne ikke undgås. Da denne fugt successivt afsættes på køleelementet i form af rim, må dette afrimes. Ifølge opfindelsen sker dette dels ved, at luften bringes til at strømme igennem luftkanalen 22 25 i modsat retning af den nævnte normale driftsretning, dels ved, at cirkulationen afbrydes og omgivelsernes varme luft suges ind gennem ledeorganerne 28, idet den af køleelementet afkølede luft af ledeorganer 29 ved kanalens modsatte ende styrer den udblsste luft i en retning bort fra vareforrådet 30 og bort fra den tidligere cirkulationsvej således, at luften ikke går tilbage til ledeorganerne 28 og man ikke får en cirkulation af kold luft.Although the guide means 28 are properly designed and the airflow at 20 and the air velocity are well balanced, some mixing of warm humid air from the surroundings cannot be avoided. Since this moisture is gradually deposited on the cooling element in the form of rhyme, this must be defrosted. According to the invention, this is done partly by causing the air to flow through the air duct 22 25 in the opposite direction to the normal operating direction, and partly by interrupting the circulation and the warm air of the surroundings being sucked in through the conductors 28, the air cooled by the cooling element by conductors 29 at the opposite end of the duct, the exhaust air directs in a direction away from the supply stock 30 and away from the former circulation path so that the air does not return to the guide means 28 and no circulation of cold air is obtained.
Eftersom den omgivende varme luft har en betydelig højere 35 temperatur end køleelementet 25, men har et begrænset varmeind- hold, er den ganske vist anvendelig til afrimning, men utilstrækkelig, hvis dette skal ske hurtigt. Derfor er apparatet ifølge opfindelsen udformet således, at den pr. tidsenhed 4 158124 ved afrimning transporterede luftmængde er større, end den under normal drift cirkulerede mængde luft. Det er hensigtsmæssigt at udforme apparatet på en sådan måde, at en større luftmængde og fortrinsvis en to til fire gange større luft-^ mængde cirkuleres pr. tidsenhed ved afrimning.Since the ambient hot air has a considerably higher temperature than the cooling element 25 but has a limited heat content, it is of course useful for defrosting, but insufficient if this is to be done quickly. Therefore, the apparatus according to the invention is designed such that it time unit 4 158124 during defrost air flow is greater than the amount of air circulated during normal operation. It is convenient to design the apparatus in such a way that a larger amount of air and preferably a two to four times greater amount of air is circulated per unit. time unit at defrost.
For at luften ved afrimning skal få modsat strømningsretning, således som det er vist med punkterede pile 31, fremstilles blæseren 24's motor 23 ifølge opfindelsen med et sådant 10 reguleringsorgan, at blæseren kan arbejde i begge omdrejnings- retninger. For at den tilstræbte forøgelse af den transporterede luftmængde skal frembringes, kan man ifølge opfindelsen indrette motoren således, at den arbejder med højere omdrejningstal ved afrimning end ved normal drift. Han kan imidlertid også 15 samtidigt hermed eller som erstatning herfor udforme blæseren med større luftkapacitet, når den arbejder med afrimning, end når den arbejder i normal drift.In order for the air to defrost, in the direction of defrost, as shown by dashed arrows 31, the motor 23 of the blower 24 according to the invention is produced with such a control means that the blower can operate in both directions of rotation. In order to achieve the desired increase in the amount of air transported, the engine can according to the invention be arranged so that it operates at higher rpm in defrosting than in normal operation. However, he can also simultaneously designate or replace it with the fan with greater air capacity when working with defrosting than when operating in normal operation.
Ued en lang køledisk kan flere blæsere med motorer være 20 anbragt i luftkanalen. Kølingen kan ske ved et til diskens længde tilpasset køleelement eller ved hjælp af flere elementer. I fig. 2 er vist en frysedisk med to separate vareforråd i varekasser 32, 33, og en delvis falles, lodret luftkanal 34 imellem disse kasser. Disken består af to endesider 35, 25 af hvilke den ene ses i figuren, to langdesider 36, 37, der er således udformede, at disken er tilgængelig for kunder fra begge sider,.samt en bund 38. Disken står med fødder 14, 15 på et gulv 16. Under normal drift suges luft ind foroven i midterkanalen 34 i overensstemmelse med pilene 30 39 og trækkes ned mod af motorer 40 drevne blæsere 41, som er fælles for en fortsat kanal 42 til venstre og en fortsat kanal 43 til højre i dfiguren. Luften passerer i kanalen 42 et køleelement 44, og i kanalen 43 et køleelement 45 for siden at stige opad gennem kanaldele 46,47 og blive 35 blæst ud gennem ledeorganer 28 ved hver side. Luften blæses her i vandret retning ud over varerne 21 og mod en midterlinie over indløbet til midterkanalen 34, hvor luften suges ind 5 150124 for siden at cirkulere begge veje. Hensigtsmæssigt ledes indsugningsstrømmen af et hen over midterlinien anbragt luftstyr 51 således, at opadrettede strømninger så vidt muligt undgås.Without a long cooling disk, several fans with motors may be located in the air duct. The cooling can be done by a cooling element adapted to the length of the disc or by means of several elements. In FIG. 2, a freezer counter is shown with two separate commodities in product boxes 32, 33, and a partially dropped vertical air duct 34 between these boxes. The disc consists of two end sides 35, 25 of which one is seen in the figure, two longitudinal sides 36, 37, which are designed so that the disc is accessible to customers from both sides, as well as a bottom 38. The disc stands with feet 14, 15 on a floor 16. During normal operation, air is sucked into the top of the central duct 34 in accordance with the arrows 30 39 and is pulled down towards motors 40 driven by motors 40, which are common to a continued duct 42 on the left and a continued duct 43 on the right. dfiguren. The air passes in the duct 42 a cooling element 44, and in the duct 43 a cooling element 45 thereafter rising upwardly through duct portions 46,47 and being blown out through guiding means 28 at each side. Here, the air is blown in a horizontal direction beyond the goods 21 and towards a center line over the inlet to the center duct 34, where the air is sucked in and then circulated both ways. Conveniently, the suction flow is guided by an air guide 51 located over the center line so that upward flow is avoided as far as possible.
55
Ved afrimning af frysedisken vendes luftens strømningsretning i kanalerne, og den kolde luft blæses ud gennem midterkanalen 34, som vist med punkterede pile 48. Dette forårsager, at den ved ledeorganerne 28 på begge sider indsugede luft ikke 10 er kold luft, men derimod omgivelsernes varme luft, således som vist med pile 49. Særskilte ledeorganer 50 ved kanalen 34's øvre munding leder den ved afrimning udstrømmende luft opad og via luftstyrene 51 bort fra den normale cirkulationsvej .When defrosting the freezer counter, the direction of flow of the air in the ducts is reversed and the cold air is blown out through the central duct 34, as shown by dashed arrows 48. This causes the air sucked in by the guide means 28 on both sides not 10 cold air, but instead the heat of the surroundings. air, as shown by arrows 49. Separate guide means 50 at the upper mouth of the duct 34 directs the air flowing upwards through defrosting and via the air guides 51 away from the normal circulation path.
1515
Også den i fig. 2 viste frysedisk har en skrånende bund og er således udformet, at det vand, som dannes ved afrimningen af køleelementerne 44,45 samles på et sted, hvor der findes afledningsorganer.Also shown in FIG. 2 has a sloping bottom and is designed so that the water formed by defrosting the cooling elements 44,45 is collected at a location where drainage means are present.
2020
Den store luftmængde kan tilvejebringes ved stort omdrejningstal for blæserne. Det lavere omdrejningstal for blæserne kan man få ved hjælp af spændingsnedssttende organer i blæser-motorernes tilførselsledninger, f.eks. en transformator 25 eller en tyristorregulator .The large amount of air can be provided at high fan speeds. The lower speed of the fans can be obtained by means of voltage reducing means in the supply lines of the blower motors, e.g. a transformer 25 or a thyristor controller.
Den høje strømningshastighed på luften medfører, at den parallelle strømning over vareoverfladen ikke indtræder, således at en hel del varm luft fra omgivelserne indsuges 30 og kan udnyttes til afrimning. Når siden lufthastigheden nedsættes, går strømningen tilbage til den normale cirkulation.The high flow velocity of the air means that the parallel flow over the product surface does not occur, so that a lot of warm air from the surroundings is sucked in and can be used for defrosting. As the air velocity decreases, the flow returns to normal circulation.
Rimdannelsen på køleelementerne i en disk af den beskrevne art kan variere afhængig på omgivelsernes klima. For at 35 sikre, at elementerne altid bliver fri for rim under en afrim ning, kan man under afslutningen af afrimningen vende luftens strømningsretning til den normale, men holde køleelementerneThe rim formation on the cooling elements of a disc of the type described may vary depending on the ambient climate. In order to ensure that the elements are always free of rhyme during a defrost, during the defrost, one can reverse the flow direction of the air to the normal, but keep the cooling elements
Claims (2)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7701081A SE403961B (en) | 1977-02-01 | 1977-02-01 | METHOD OF DEFROSTING COOLING ELEMENTS IN A FREEZER DISPING DEVICE FOR IMPLEMENTING THE SET |
| SE7701081 | 1977-02-01 | ||
| SE7701572A SE7701572L (en) | 1977-02-11 | 1977-02-11 | DEFROST SET AND DEVICE DEVICE AND DEVICE |
| SE7701572 | 1977-02-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK23378A DK23378A (en) | 1978-08-02 |
| DK150124B true DK150124B (en) | 1986-12-08 |
Family
ID=26656777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK023378AA DK150124B (en) | 1977-02-01 | 1978-01-17 | METHOD AND DEVICE FOR DEFINING A COOLED OR FREEZE DISK |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS53124369A (en) |
| AU (1) | AU509659B2 (en) |
| DE (1) | DE2804008A1 (en) |
| DK (1) | DK150124B (en) |
| ES (2) | ES466507A1 (en) |
| FI (1) | FI64239C (en) |
| FR (1) | FR2378482A1 (en) |
| GB (1) | GB1573901A (en) |
| IT (1) | IT1102264B (en) |
| NO (1) | NO143954C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE414338B (en) * | 1978-10-20 | 1980-07-21 | Electrolux Ab | DEVICE FOR COOLED OR FROZEN GOODS |
| US4295340A (en) * | 1979-02-14 | 1981-10-20 | Tyler Refrigeration Corporation | Refrigerated display case having ambient air defrost |
| US4338792A (en) * | 1979-01-31 | 1982-07-13 | Tyler Refrigeration Corporation | Refrigerated merchandiser display case with defrost device |
| USRE31909E (en) * | 1979-02-14 | 1985-06-11 | Tyler Refrigeration Corporation | Refrigerated display case having ambient air defrost |
| US4457139A (en) * | 1980-02-01 | 1984-07-03 | Tyler Refrigeration Corporation | Refrigerated display case having ambient air defrost |
| US4341081A (en) * | 1979-02-14 | 1982-07-27 | Tyler Refrigeration Corporation | Multiband open front refrigerated case with air defrost |
| FR2473294A1 (en) * | 1979-02-14 | 1981-07-17 | Tyler Refrigeration Corp | Refrigerated display cabinet for goods - has two air pipes, with two air inlets and outlets, and two fans to circulate cold air |
| US4514988A (en) * | 1979-02-14 | 1985-05-07 | Tyler Refrigeration Corporation | Refrigerated display case having ambient air defrost |
| US4314453A (en) * | 1979-07-25 | 1982-02-09 | Tyler Refrigeration Corporation | One and a half band refrigerated display case |
| FR2484065A1 (en) * | 1980-06-06 | 1981-12-11 | Helpac Applic Thermodyn Solair | IMPROVEMENTS ON HEAT PUMPS |
| GB2251928A (en) * | 1991-01-17 | 1992-07-22 | Imi Cornelius | Chilled display apparatus |
| US5475988A (en) * | 1994-11-17 | 1995-12-19 | Delaware Capital Formation Inc. | Refrigerated display case with an improved air flow control and a contaminant control apparatus |
| CN112325543B (en) * | 2020-11-26 | 2023-12-22 | 珠海格力电器股份有限公司 | Refrigerator, control method thereof, controller and computer readable storage medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS514647A (en) * | 1974-07-01 | 1976-01-14 | Sanyo Electric Co | Shookeesuno jososochi |
| JPS51118141A (en) * | 1975-04-10 | 1976-10-16 | Fuji Electric Co Ltd | Defrosting method of opened show case freezer by air curtain |
-
1978
- 1978-01-17 DK DK023378AA patent/DK150124B/en not_active Application Discontinuation
- 1978-01-18 GB GB2025/78A patent/GB1573901A/en not_active Expired
- 1978-01-27 FI FI780277A patent/FI64239C/en not_active IP Right Cessation
- 1978-01-27 AU AU32813/78A patent/AU509659B2/en not_active Expired
- 1978-01-31 IT IT47857/78A patent/IT1102264B/en active
- 1978-01-31 DE DE19782804008 patent/DE2804008A1/en not_active Ceased
- 1978-01-31 ES ES466507A patent/ES466507A1/en not_active Expired
- 1978-02-01 NO NO780360A patent/NO143954C/en unknown
- 1978-02-01 FR FR7802728A patent/FR2378482A1/en active Granted
- 1978-02-01 JP JP937678A patent/JPS53124369A/en active Pending
- 1978-05-08 ES ES469581A patent/ES469581A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FI64239C (en) | 1983-10-10 |
| AU509659B2 (en) | 1980-05-22 |
| NO780360L (en) | 1978-08-02 |
| FR2378482B1 (en) | 1982-12-31 |
| NO143954C (en) | 1981-05-13 |
| IT7847857A0 (en) | 1978-01-31 |
| AU3281378A (en) | 1979-08-02 |
| DK23378A (en) | 1978-08-02 |
| JPS53124369A (en) | 1978-10-30 |
| ES469581A1 (en) | 1979-01-01 |
| ES466507A1 (en) | 1978-10-01 |
| NO143954B (en) | 1981-02-02 |
| FI64239B (en) | 1983-06-30 |
| GB1573901A (en) | 1980-08-28 |
| FI780277A (en) | 1978-08-02 |
| IT1102264B (en) | 1985-10-07 |
| DE2804008A1 (en) | 1978-08-03 |
| FR2378482A1 (en) | 1978-08-25 |
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