NO833587L - GLASS DOER - Google Patents

GLASS DOER

Info

Publication number
NO833587L
NO833587L NO833587A NO833587A NO833587L NO 833587 L NO833587 L NO 833587L NO 833587 A NO833587 A NO 833587A NO 833587 A NO833587 A NO 833587A NO 833587 L NO833587 L NO 833587L
Authority
NO
Norway
Prior art keywords
glass
freezer
panes
door
glass door
Prior art date
Application number
NO833587A
Other languages
Norwegian (no)
Inventor
Bengt Lindgren
Original Assignee
Termofrost Sweden Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Termofrost Sweden Ab filed Critical Termofrost Sweden Ab
Publication of NO833587L publication Critical patent/NO833587L/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47FSPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00Show cases or show cabinets
    • A47F3/04Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404Cases or cabinets of the closed type
    • A47F3/0426Details
    • A47F3/0434Glass or transparent panels
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6715Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refrigerator Housings (AREA)
  • Glass Compositions (AREA)

Description

Foreliggende oppfinnelse angår en glassdør for kjøle- og fryserom i dagligvarehandelen, først og fremst for frem-vising av kjøle- og frysevarer i matvarehandelen. The present invention relates to a glass door for refrigerated and freezer rooms in the grocery store, primarily for displaying refrigerated and frozen goods in the grocery store.

Slike dører utnyttes nå mer og mer for å avskjerme kjøle-og fryserommet mot det øvrige lokalet i en matvareforretning. Gjennom glassdørene fremvises kjøle- og frysevarene. Når Such doors are now used more and more to screen off the fridge and freezer from the rest of the premises in a food store. The refrigerated and frozen goods are displayed through the glass doors. When

en kunde skal ta en vare, åpner denne døren, tar varen ut og døren stenges. Ved at dørene åpnes relativt ofte, utsettes de omskiftende for butikklokalets klima og kjøle- og fryserommets klima. a customer takes an item, opens this door, takes the item out and the door closes. As the doors are opened relatively often, they are alternately exposed to the climate of the shop premises and the climate of the cold and freezer rooms.

Dørene omfatter normalt to eller tre glassruter, idet tre glassruter er det vanligste. I dette tilfellet utgjøres den mot butikklokalet vendende ruten, i likhet med den som vender mot kjøle- eller fryserommet av herdet glass for å kunne motstå normale påkjenninger uten å briste. Den mellomste ruten utgjøres oftest av vanlig vindusglass. The doors normally include two or three panes of glass, with three panes of glass being the most common. In this case, the pane facing the shop premises, like the one facing the fridge or freezer, is made of tempered glass to be able to withstand normal stresses without breaking. The middle pane is most often made up of ordinary window glass.

Ved at dørene omvekslende utsettes for forskjellige klimaer med hensyn til relativ fuktighet og temperatur, er normalt den mot lokalet vendende glassruten oppvarmet for å for-hindre rimdannelse,slik at varene alltid tydelig blir frem-vist. As the doors are alternately exposed to different climates with regard to relative humidity and temperature, the glass pane facing the premises is normally heated to prevent frost forming, so that the goods are always clearly displayed.

Den fremre, mot butikklokalet vendende ruten er normalt oppvarmet med en tilført effekt på omkring 80-120 W/m 2. The front, facing the shop premises, is normally heated with an input power of around 80-120 W/m 2.

I tillegg kommer ca. 60 W for oppvarming av dørrammen.In addition, approx. 60 W for heating the door frame.

Denne effekt holder døren klar og fri for dugg, når f.eks. temperaturen i lokalet er +25°C og temperaturen i et fryserom er -30°C. This effect keeps the door clear and free of dew, when e.g. the temperature in the room is +25°C and the temperature in a freezer room is -30°C.

Ved disse og tilsvarende forhold ledes omkring 60% av den tilførte effekten inn i fryserommet mens omkring 40% ledes inn i butikklokalet. Dette medfører at 72-96 W/m 2 føres inn i fryserommet. Denne energimengden medfører betydelige kostnader pr. år når et antall, f.eks. fem dører på omkring In these and similar conditions, around 60% of the supplied power is directed into the freezer room, while around 40% is directed into the shop premises. This results in 72-96 W/m 2 being fed into the freezer compartment. This amount of energy entails significant costs per years when a number, e.g. five doors on

1 m 2 pr. dør benyttes. Det kreves da en kontinuerlig 1 m 2 per door is used. A continuous is then required

energitilførsel på 600-800 W. Kostnaden blir ved en energipris på 0,20 kr. pr. kWh omkring 300-400 kr. pr. år. energy supply of 600-800 W. The cost is at an energy price of NOK 0.20. per kWh around NOK 300-400. per year.

Foruten denne kostnad belaster naturligvis den i fryserommet innførte energimengden fryserommets kjøleaggregat, ved hjelp av hvilket den innførte energimengden må kjøles bort. Prisen for dette er høyere ettersom kjøleaggregatet ikke har en virkningsgrad på 100%. In addition to this cost, the amount of energy introduced into the freezer naturally burdens the freezer's cooling unit, with the help of which the amount of energy introduced must be cooled away. The price for this is higher as the cooling unit does not have an efficiency of 100%.

Foreliggende oppfinnelse går ut på i vesentlig grad å redusere ovenstående problem. The present invention aims to substantially reduce the above problem.

Foreliggende oppfinnelse angår således en glassdør, beregnet for å utnyttes for kjøle- og fryserom, der den bort fra kjøle- og fryserommet vendende, fremre ruten blir oppvarmet ved et på rutens innside anbragt elektrisk ledende sjikt ogkarakterisert vedat glassdøren omfatter fire parallelt med hverandre anordnede glassruter som på i og for seg kjent måte er avtettet mot hverandre med rundt rutenes kanter forløpende tetninger. The present invention thus relates to a glass door, intended to be used for fridge and freezer rooms, where the front pane facing away from the fridge and freezer compartment is heated by an electrically conductive layer placed on the inside of the pane and characterized in that the glass door comprises four glass panes arranged parallel to each other which are sealed against each other in a manner known per se with continuous seals around the edges of the panes.

Oppfinnelsen skal i det følgende beskrives nærmere under henvisning til tegningen, der In the following, the invention will be described in more detail with reference to the drawing, where

fig. 1 viser et skjematisk tverrsnitt av en dør ifølge oppfinne Isen. fig. 1 shows a schematic cross-section of a door according to inventor Isen.

I figuren vises skjematisk en glassdør 1 ifølge oppfinnelsen. Glassdøren omfatter en fremre, bort fra kjøle- og fryserommet vendende rute 2 av herdet glass og en bakre mot kjøle- og fryserommet vendende rute 3 av herdet glass. The figure schematically shows a glass door 1 according to the invention. The glass door comprises a front pane 2 of tempered glass facing away from the fridge and freezer and a back pane 3 of tempered glass facing the fridge and freezer.

Den fremre ruten er utført for å bli oppvarmet. Opp-varmingen skjer ved at ruten er belagt med et ytterst tynt sjikt av et elektrisk ledende materiale, f.eks. tinnoksyd, hvilket sjikt i rutens 2 øvre resp. nedre del er tilkoplet oppsamlingsledere 6,7 som i sin tur er tilkoplet normal nettspenning. The front pane is designed to be heated. The heating takes place by coating the pane with an extremely thin layer of an electrically conductive material, e.g. tin oxide, which layer in the 2 upper resp. lower part is connected to collection conductors 6,7 which in turn are connected to normal mains voltage.

Mellom disse rutene 2,3 er det ifølge oppfinnelsen to mellomliggende ruter 4,5 som hensiktsmessig er av vindusglass. According to the invention, between these panes 2,3 there are two intermediate panes 4,5 which are suitably made of window glass.

Ifølge oppfinnelsen er det således fire parallelt med hverandre anordnede ruter 2,3,4,5. Rutene er' tettet mot hverandre med rundt rutenes kanter forløpende tetninger 8,9,10. According to the invention, there are thus four routes 2,3,4,5 arranged parallel to each other. The panes are sealed against each other with continuous seals 8,9,10 around the edges of the panes.

Som grunn for å utnytte fire ruter, der den fremre rutenAs a reason for using four routes, where the front route

2 er oppvarmet, ligger oppdagelsen av at effektbehovet kan reduseres i betydelig grad samtidig som effekttapenes hovedretning omkastes sammenlignet med en konvensjonell glassdør med tre glassruter. 2 is heated, lies the discovery that the power requirement can be reduced to a significant extent at the same time as the main direction of the power losses is reversed compared to a conventional glass door with three panes of glass.

Ved et ytterligere antall glassruter øker den tekniske effekten ubetydelig. With a further number of glass panes, the technical effect increases insignificantly.

Ved samme forutsetninger som nevnt ovenfor, nemlig enUnder the same conditions as mentioned above, namely a

lokal temperatur på +25°C og en temperatur i fryserommet på -30°C, er det med glassdøren ifølge oppfinnelsen bare nødvendig å oppvarme den fremre ruten 2 med en maksimal effekt som er mindre enn 50 W/m 2, fortrinnsvis omkring 40 W/m 2, dvs. en halvert effekt. Til dette kommer at effekttapenes hovedretning kastes om. Ved en konvensjonell glassdør føres omkring 60% av tilført effekt inn i fryserommet, mens omkring 40% ledes inn i lokalet. local temperature of +25°C and a temperature in the freezer room of -30°C, with the glass door according to the invention it is only necessary to heat the front pane 2 with a maximum effect that is less than 50 W/m 2 , preferably around 40 W /m 2, i.e. a halved effect. In addition, the main direction of the power losses is reversed. With a conventional glass door, around 60% of the added power is led into the freezer compartment, while around 40% is led into the room.

Ved en glassdør 1 ifølge oppfinnelsen ledes omkring 25%With a glass door 1 according to the invention, about 25%

av tilført effekt inn i fryserommet, mens 75% føres ut i lokalet, noe som illustreres med pilene 11 resp. 12 i figuren. Således er effekttapene, i den forstand at all tilført energi går bort som tap, blitt kastet om, hvilket of supplied power into the freezer compartment, while 75% is led out into the room, which is illustrated by the arrows 11 and 12 in the figure. Thus, the power losses, in the sense that all supplied energy is lost as losses, have been reversed, which

innebærer at fryserommets kjøleaggregat blir mindre be-lastet, ettersom den til fryserommet tilførte energimengden er lavere enn ved en konvensjonell glassdør. means that the freezer compartment's cooling unit is less loaded, as the amount of energy supplied to the freezer compartment is lower than with a conventional glass door.

Økonomisk innebærer naturligvis glassdøren ifølge oppfinnelsen at energikostnaden for oppvarming halveres, samtidig som kostnaden for bortkjøling av til fryserommet tilført energi minsker drastisk. Ved en konvensjonell dør tilføres omkring 72-96 W/m 2til fryserommet, mens ved en dør ifølge oppfinnelsen omkring 28-32 W/m 2 tilføres fryserommet. Economically, the glass door according to the invention naturally means that the energy cost for heating is halved, while at the same time the cost of cooling down the energy supplied to the freezer compartment is drastically reduced. With a conventional door, about 72-96 W/m 2 is supplied to the freezer compartment, while with a door according to the invention, around 28-32 W/m 2 is supplied to the freezer compartment.

Med hensyntagen til samtidig minskning av kjølemaskinens effektbehov, blir ifølge oppfinnelsen den totalt inn-sparte effekten pr. dør 73 W til 130 W. Taking into account the simultaneous reduction in the cooling machine's power requirement, according to the invention the total power saved per door 73 W to 130 W.

Det som er sagt ovenfor om fryserommet gjelder analogt for kjølerom. Naturligvis kan oppfinnelsen varieres ved at de mellomliggende og/eller de ytre glassrutene utføres i en annen glassort enn vindusglass resp. herdet glass. What has been said above about the freezer room applies analogously to the cold room. Naturally, the invention can be varied by making the intermediate and/or the outer panes of glass in a different type of glass than window glass or tempered glass.

Oppfinnelsen er ikke begrenset til det ovenfor angitte ut-førelseseksempel, men kan varieres innen rammen for de etterfølgende patentkrav. The invention is not limited to the embodiment given above, but can be varied within the scope of the subsequent patent claims.

Claims (2)

1. Glassdør beregnet for å benyttes for kjøle- og fryserom, der den bort fra kjøle- og fryserommet vendende, fremre ruten (2) er oppvarmet ved et på rutens innside anbragt elektrisk ledende sjikt, karakterisert ved at glassdøren (1) omfatter fire parallelt med hverandre anordnede glassdører (2,3,4,5) som på i og for seg kjent måte er avtettet mot hverandre med rundt rutenes kanter for-løpende tetninger (8,9,10).1. Glass door intended to be used for cold and freezer rooms, where the front window (2) facing away from the cold and freezer room is heated by an electrically conductive layer placed on the inside of the window, characterized in that the glass door (1) comprises four parallel mutually arranged glass doors (2,3,4,5) which are sealed against each other in a known manner with seals (8,9,10) running around the edges of the panes. 2. Glassdør ifølge krav 1, karakterisert ved at nevnte fremre rute (2) er oppvarmet med en maksimal effekt som er mindre enn 50 W/m 2.2. Glass door according to claim 1, characterized in that said front pane (2) is heated with a maximum effect that is less than 50 W/m 2.
NO833587A 1982-10-05 1983-10-03 GLASS DOER NO833587L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8205677A SE444636B (en) 1982-10-05 1982-10-05 GLASDORR INTENDED TO BE USED FOR REFRIGERATING AND COLD SPACE

Publications (1)

Publication Number Publication Date
NO833587L true NO833587L (en) 1984-04-06

Family

ID=20348101

Family Applications (1)

Application Number Title Priority Date Filing Date
NO833587A NO833587L (en) 1982-10-05 1983-10-03 GLASS DOER

Country Status (6)

Country Link
DE (1) DE3335842A1 (en)
FI (1) FI833600A (en)
FR (1) FR2534007A1 (en)
GB (1) GB2130280A (en)
NO (1) NO833587L (en)
SE (1) SE444636B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD940057A1 (en) * 1994-03-28 1995-09-28 Isoclima Spa PERFECTED HEATING INSULATING GLASS.
CN112944777A (en) * 2019-12-10 2021-06-11 苏州阿奎睿思机器人科技有限公司 Low-temperature environment preparation device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR790366A (en) * 1934-05-22 1935-11-20 Carbonique Francaise Improvements to display cases and more specifically to refrigerated display cases
US2179585A (en) * 1939-01-09 1939-11-14 Ed Friedrich Inc Refrigerator window
US2408460A (en) * 1944-03-30 1946-10-01 Philco Corp Refrigerator
US3526753A (en) * 1966-12-08 1970-09-01 Ardco Inc Anti-shock control devices for electrically heated glass
US3475594A (en) * 1967-08-16 1969-10-28 Ardco Inc Electrically heated glass panel with anti-shock control circuit having electronic switches
US3449551A (en) * 1967-09-05 1969-06-10 Ardco Inc Antishock control devices for electrically heated glass panels or the like
GB1301651A (en) * 1968-10-08 1973-01-04
GB1241392A (en) * 1969-03-19 1971-08-04 Thermovitrine Ltd An improved transparent insulating unit
DE2035891C3 (en) * 1970-07-20 1974-02-07 Glas- U. Spiegelmanufaktur N. Kinon Gmbh, 5100 Aachen Electrically heated laminated glass
DE2121319A1 (en) * 1971-04-30 1973-01-18 Rocholl Martin Ggottfried Dipl Electrically heating coating for glass plates - - consisting of electroconductive layer contg a doping element
US3892947A (en) * 1974-02-27 1975-07-01 Donnelly Mirrors Inc Electrically heated panel with anti-shock conductive strips
US4035608A (en) * 1975-11-17 1977-07-12 Anthony's Manufacturing Company, Inc. Multi-pane window structure
US4127765A (en) * 1978-02-17 1978-11-28 Anthony's Manufacturing Company, Inc. Anti-condensation system for refrigerator doors

Also Published As

Publication number Publication date
GB2130280A (en) 1984-05-31
SE444636B (en) 1986-04-28
GB8326682D0 (en) 1983-11-09
FI833600A0 (en) 1983-10-04
FI833600A (en) 1984-04-06
FR2534007A1 (en) 1984-04-06
DE3335842A1 (en) 1984-04-05
SE8205677L (en) 1984-04-06
SE8205677D0 (en) 1982-10-05

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