EP3620084B1 - Kühltheke mit verbessertem isolationssystem - Google Patents
Kühltheke mit verbessertem isolationssystem Download PDFInfo
- Publication number
- EP3620084B1 EP3620084B1 EP19191706.1A EP19191706A EP3620084B1 EP 3620084 B1 EP3620084 B1 EP 3620084B1 EP 19191706 A EP19191706 A EP 19191706A EP 3620084 B1 EP3620084 B1 EP 3620084B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- display counter
- refrigerated display
- disposed
- insulation
- refrigerated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009413 insulation Methods 0.000 title claims description 38
- 239000000463 material Substances 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 2
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 2
- ZGTNJINJRMRGNV-UHFFFAOYSA-N [V].[Fe].[Zr] Chemical compound [V].[Fe].[Zr] ZGTNJINJRMRGNV-UHFFFAOYSA-N 0.000 claims description 2
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical compound [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 claims description 2
- 159000000007 calcium salts Chemical class 0.000 claims description 2
- 239000011491 glass wool Substances 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims description 2
- ZSJFLDUTBDIFLJ-UHFFFAOYSA-N nickel zirconium Chemical compound [Ni].[Zr] ZSJFLDUTBDIFLJ-UHFFFAOYSA-N 0.000 claims description 2
- 150000005324 oxide salts Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 235000015243 ice cream Nutrition 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 235000014594 pastries Nutrition 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- 239000005001 laminate film Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005026 oriented polypropylene Substances 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- A47F3/0469—Details, e.g. night covers
-
- 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
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0426—Details
-
- 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
- A47F7/00—Show stands, hangers, or shelves, adapted for particular articles or materials
Definitions
- the present invention relates to a refrigerated display counter with an improved insulation system.
- Refrigerated display counters are known on the market and used to display ice cream contained in tubs, and also to display pastry items.
- Such refrigerated display counters are provided with a refrigeration system suitable for refrigerating a refrigerated compartment that contains the products to be displayed.
- the temperature of the refrigerated compartment must be kept within a wide range, which can vary from -20°C to +20°C. In fact, ice cream must be stored at approximately -20°C, pastry items at approximately +4°C and pralines at approximately +20°C.
- the refrigerated compartment is obtained by means of insulation panels that generally consist in sheet metal or plastic walls that define a cavity wherein polyurethane foam is injected with a density of approximately 40 Kg/m 3 .
- the refrigerated display counters of the prior art have a large volume because of the high thickness of the panels.
- Such a drawback is especially experienced in the case of small shops, where a very small space is dedicated to the refrigerated display counter because of the small dimensions and of the high rent of the shop.
- Vacuum panels which are normally defined as "Vacuum Insulation Panels (VIPs)" are known on the market. These panels use the insulation power of vacuum to increase the thermal resistance compared to traditional panels. Vacuum panels are obtained with a tight film that creates a chamber filled with a filler where vacuum is created.
- VIPs Vacuum Insulation Panels
- This type of vacuum panels is generally used in the aeronautics industry or for laboratory applications at cryo-temperatures.
- the vacuum panels are impaired by the fact that they are extremely fragile. In fact, if the film is perforated, the vacuum inside the panel is lost and the panel loses its insulation properties.
- vacuum panels are not used for refrigerated display counters.
- refrigerated display counters are continuously handled by operators and users, who may damage the vacuum panels and impair the insulation properties of the refrigerated compartment.
- WO03083386 A discloses a method for dispensing frozen food products by means of an insulated container.
- the purpose of the present invention is to eliminate the drawbacks of the prior art by disclosing a refrigerated display counter provided with an insulation system that is effective, efficacious, reliable, versatile, not cumbersome and simple to install.
- the refrigerated display counter of the invention is defined by claim 1.
- VIP vacuum insulation panels
- a refrigerated display counter according to the invention is disclosed, which is generally indicated with reference numeral (100).
- the refrigerated display counter (100) comprises:
- the front wall and the back wall (10, 11) are longer than the side walls (12).
- the front wall (11) is lower than the back wall (10).
- the frame (1) and the walls (10, 11, 12) define a refrigerated compartment (R) ( Fig. 5 ) with a substantially parallelepiped shape.
- the refrigerated compartment (R) is refrigerated by means of a refrigeration system of known type, which is omitted in the drawings.
- Support means (2) are disposed in the refrigerated compartment (R) to support the products to be displayed.
- the support means (2) can be ice cream tubs.
- the support means (2) can be a top or trays to support pastry products to be displayed and kept at a controlled temperature.
- Insulation panels (3) are disposed on the side walls (12) of the refrigerated display counter.
- the insulation panels (3) of the side walls are of traditional type.
- the insulation panels (3) of the side walls have sheet metal or plastic walls that define a cavity wherein foam polyurethane is injected and have a thickness of 50-60 mm.
- the insulation panels (3) are used for structural fixings at least on two sides of the refrigerated display counter.
- the back wall (10) and the front wall (11) of the refrigerated display counter are provided with recessed seats (13, 14) defined by rectangular frames (15, 16).
- Insulation panels (4) of vacuum insulation panel type (VIP) are disposed in the recessed seats (13, 14) of the back wall and of the front wall.
- the insulation panel (4) of VIP type comprises an external film (40) that generates a gas-tight enclosure filled with a core (41) made of fiber or pulverulent material, which represents the structural part of the panel.
- the core (41) may comprise an insulation material in fiber form (glass wool), or in porous form (open-cell polyurethane foam) or in pulverulent form (silica powder).
- the absorber material (42) may comprise materials with oxide and calcium salts base or Zirconium-Aluminum alloys (St 101), Zirconium - Vanadium - Iron alloys (St 707) and Zirconium-Nickel alloys (St 198).
- the external film (40) may comprise a laminated multi-layer film composed of layers of various materials, such as polymer layers and layers of aluminum deposited on a polymer layer.
- the polymer layers may be polyamide (PA), polyethylene (PE), polyethylene terephthalate (PET) or other materials that permit thermowelding operations after the evacuation process.
- PA polyamide
- PE polyethylene
- PET polyethylene terephthalate
- the aluminum can be deposited on the polymer layer by means of sputtering or vapor deposition (PVD).
- PVD vapor deposition
- the aluminum layer is used for protection against water vapor.
- Fig. 7 illustrates an example of external film (40) composed of a multi-layer laminate film, comprising:
- Such a type of external film (40) has a thickness of approximately 6 ⁇ m.
- thermowelding W
- the insulation panels (4) of VIP type have a thickness of approximately 15 mm.
- the two insulation panels (4) of VIP type are disposed in sandwich configuration between an internal soft layer (5) and an external protection layer (6).
- the internal soft layer (5) may comprise a soft, deformable material and has a thickness of approximately 1mm.
- the external protection layer (6) may comprise a sheet metal or a hard plastic plate.
- the external protection layer (6) has a thickness of approximately 1 mm.
- Each external protection layer (6) is coupled with the frame (1) by means of coupling means (M) in such a way to cover the insulation panel (4) of VIP type.
- the external protection layer (6) comprises:
- the frame (1) comprises:
- the coupling means (M) join the lower flange (61) of each insulation panel (4) with the base sections (7, 70) of the frame and the upper rib (62) of each insulation panel (4) with the upper sections (7, 70) of the frame.
- the coupling means (M) are of removable type. In view of the above, if the insulation panel (4) is damaged, the external protection layer (6) can be removed and the insulation panel (4) can be replaced.
- the coupling means (M) can be screw means (V) or fit-in means.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Refrigerator Housings (AREA)
- Thermal Insulation (AREA)
Claims (7)
- Warenkühltheke (100), umfassend- einen Rahmen (1),- eine Rückwand (10), die dazu bestimmt ist, einem Bediener zugewandt zu sein,- eine Vorderwand (11), die dazu bestimmt ist, den Verbrauchern zugewandt zu sein,- zwei Seitenwände (12),- ein durch den Rahmen (1) und die Wände definiertes Kühlfach (R),- eine Kühlanlage, die ausgebildet ist, um das Kühlfach (R) zu kühlen,- Trägermittel (2), die in dem Kühlfach (R) angeordnet sind, um die auszustellenden Waren zu tragen, und- Isolationspaneele (3, 4), die auf den Wänden der Warenkühltheke angeordnet sind,wobei die Isolationspaneele zwei Isolationspaneele (4) vom Typ Vakuumisolationspaneel (VIP) umfassen, die auf der Rückwand (10) bzw. auf der Vorderwand (11) der Warenkühltheke angeordnet sind,
wobei die Isolationspaneele (4) vom VIP-Typ in eingelassenen Sitzen (13, 14) angeordnet sind, die auf der Rückwand (10) und der Vorderwand (11) herausgearbeitet und durch schützende Außenschichten (6) geschützt sind;
wobei die schützende Außenschicht (6) mittels entfernbarer Kopplungsmittel (M) mit dem Rahmen (1) der Warenkühltheke gekoppelt ist;
dadurch gekennzeichnet, dass
die schützende Außenschicht (6) der Rückwand Folgendes umfasst:- einen Flansch (61), der in einer unteren Position auskragt, um ein unter der Rückwand (10) angeordnetes unteres Profil (7) in Eingriff zu nehmen; und- eine Rippe (62), die in einer oberen Position auskragt, um ein über der Rückwand (10) angeordnetes oberes Profil (8) in Eingriff zu nehmen; und die schützende Außenschicht (6) der Vorderwand Folgendes umfasst:- einen Flansch (61), der in einer unteren Position auskragt, um ein unter der Vorderwand (11) angeordnetes unteres Profil (70) in Eingriff zu nehmen; und- eine Rippe (62), die in einer oberen Position auskragt, um ein über der Vorderwand (11) angeordnetes oberes Profil (80) in Eingriff zu nehmen. - Warenkühltheke (100) nach Anspruch 1, wobei die Isolationspaneele (4) vom VIP-Typ eine Dicke zwischen 15 und 25 mm aufweisen.
- Warenkühltheke (100) nach Anspruch 1 oder 2, wobei jedes Isolationspaneel (4) vom VIP-Typ in Sandwichkonfiguration zwischen einer weichen Innenschicht (5) und einer schützenden Außenschicht (6) angeordnet ist.
- Warenkühltheke (100) nach einem der vorstehenden Ansprüche, wobei jedes Isolationspaneel (4) vom VIP-Typ eine Außenfolie (40) umfasst, die eine gasdichte Umhüllung erzeugt, die mit einem aus faser- oder pulverförmigem Material bestehenden Kern (41) gefüllt wird, in dem ein Vakuum mit einem Druckwert von weniger als 0,1 mbar erzeugt wird.
- Warenkühltheke (100) nach Anspruch 4, wobei der Kern (41) des Isolationspaneels (4) vom VIP-Typ ein Isoliermaterial in Faserform, wie Glaswolle, oder in poröser Form, wie offenzelliger Polyurethanschaum, oder in Pulverform, wie Siliciumdioxidpulver, umfasst.
- Warenkühltheke (100) nach Anspruch 4 oder 5, wobei jedes Isolationspaneel (4) vom VIP-Typ ein Absorbermaterial (42) umfasst, das in der Umhüllung des Paneels angeordnet ist, um Gase (falls vorhanden) zu absorbieren und das Vakuum in der Umhüllung des Paneels zu erhalten, wobei das Absorbermaterial (42) Materialien auf Oxid- und Calciumsalzbasis oder Zirkonium-Aluminium-Legierungen (St 101), Zirkonium-Vanadium-Eisen-Legierungen (St 707) und Zirkonium-Nickel-Legierungen (St 198) umfasst.
- Warenkühltheke (100) nach einem der Ansprüche 4 bis 6, wobei die Außenfolie (40) eine laminierte Mehrschichtenfolie, bestehend aus Polymerschichten und mindestens einer auf einer Polymerschicht aufgebrachten Aluminiumschicht, umfasst.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT201800008429 | 2018-09-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3620084A1 EP3620084A1 (de) | 2020-03-11 |
EP3620084B1 true EP3620084B1 (de) | 2021-07-07 |
Family
ID=64316881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19191706.1A Active EP3620084B1 (de) | 2018-09-07 | 2019-08-14 | Kühltheke mit verbessertem isolationssystem |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3620084B1 (de) |
CN (1) | CN110881813A (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003083386A1 (en) | 2002-03-28 | 2003-10-09 | Unilever Plc | Method for dispensing frozen edible products and insulated container adapted therefore |
JP2006029456A (ja) * | 2004-07-16 | 2006-02-02 | Matsushita Electric Ind Co Ltd | 真空断熱材、真空断熱材を具備する保温保冷機器、および冷蔵庫 |
KR100700612B1 (ko) * | 2006-01-03 | 2007-03-28 | 엘지전자 주식회사 | 조립식 냉장고의 단열 판넬의 결합 구조 및 이를 구비한조립식 냉장고 |
US10253918B2 (en) * | 2010-12-21 | 2019-04-09 | Savsu Technologies Llc | Insulated storage and transportation containers |
-
2019
- 2019-08-14 EP EP19191706.1A patent/EP3620084B1/de active Active
- 2019-09-06 CN CN201910840995.5A patent/CN110881813A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
CN110881813A (zh) | 2020-03-17 |
EP3620084A1 (de) | 2020-03-11 |
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