EP3620084B1 - Comptoir frigorifique comportant un système d'isolation amélioré - Google Patents

Comptoir frigorifique comportant un système d'isolation amélioré Download PDF

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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
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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.)
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Application number
EP19191706.1A
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German (de)
English (en)
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EP3620084A1 (fr
Inventor
Marco ABBONANTE
Luca Bossi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clabo SpA
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Clabo SpA
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Publication of EP3620084A1 publication Critical patent/EP3620084A1/fr
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    • 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)

  1. Présentoir de comptoir réfrigéré (100) comprenant
    - un châssis (1),
    - une paroi postérieure (1) apte à être orientée vers un opérateur,
    - une paroi antérieure (1) apte à être orientée vers les consommateurs,
    - deux parois latérales (12),
    - un compartiment réfrigéré (R) défini par le châssis (1) et par les parois,
    - un système réfrigérant agencé de manière à refroidir le compartiment réfrigéré (R),
    - des moyens de support (2) disposés dans le compartiment réfrigéré (R) pour soutenir les produits à exposer, et
    - des panneaux isolants (3, 4) disposés sur les parois du comptoir réfrigéré,
    où lesdits panneaux isolants comprennent deux panneaux isolants (4) du type panneau isolant sous vide (VIP) qui sont disposés respectivement sur la paroi postérieure (10) et sur la paroi antérieure (11) du présentoir de comptoir,
    où les panneaux isolants (4) du type VIP sont disposés dans des emplacements encastrés (13, 14) réalisés dans ladite paroi postérieure (10) et dans ladite paroi antérieure (11) et sont protégés par des couches protectives externes (6) ;
    où la couche protective externe (6) est couplée au dit châssis (1) du comptoir réfrigéré moyennant des moyens d'accouplement (M) de type amovible ;
    caractérisé en ce que
    la couche protective externe (6) de la paroi postérieure comprend :
    - une bride (61) qui déborde inférieurement pour s'engager avec un profilé de base (7) disposé sous la paroi postérieure (10) ; et
    - une nervure (62) qui déborde supérieurement pour s'engager avec un profilé supérieur (8) disposé au-dessus de la paroi postérieure (10) ; et La couche protective externe (6) de la paroi antérieure comprend :
    - une bride (61) qui déborde inférieurement pour s'engager avec un profilé de base (70) disposé sous la paroi antérieure (11) ; et
    - une nervure (62) qui déborde supérieurement pour s'engager avec un profilé supérieur (80) disposé au-dessus de la paroi antérieure (11).
  2. Présentoir de comptoir réfrigéré (100) selon la revendication 1, où lesdits panneaux isolants (4) du type VIP ont une épaisseur comprise entre 15 - 25 mm.
  3. Présentoir de comptoir réfrigéré (100) selon la revendication 1 ou 2, où chaque panneau isolant (4) du type VIP est disposé à sandwich entre une couche souple interne (5) et une couche protective externe (6).
  4. Présentoir de comptoir réfrigéré (100) selon l'une quelconque des revendications précédentes, où chaque panneau isolant (4) du type VIP comprend un film externe (40) qui génère une enveloppe étanche au gaz qui est remplie avec un noyau (41) constitué de matériel fibreux ou pulvérulent dans lequel le vide est créé avec une pression inférieure à 0,1 mbar.
  5. Présentoir de comptoir réfrigéré (100) selon la revendication 4, où ledit noyau (41) du panneau isolant (4) du type VIP comprend un matériau isolant sous forme fibreuse, telle que la laine de verre ou sous forme poreuse, tel que le polyuréthane expansé à cellules ouvertes ou sous forme pulvérulente, telle que la poudre de silice.
  6. Présentoir de comptoir réfrigéré (100) selon la revendication 4 ou 5, où chaque panneau isolant (4) du type VIP comprend un matériau absorbant (42) disposé dans l'enveloppe du panneau pour absorber des gaz éventuels et maintenir le vide dans l'enveloppe du panneau, ledit matériel absorbant (42) comprenant des matières à base d'oxydes et sels de calcium ou des alliages Zircone-Aluminium (St 101), des alliages Zircone - Vanadium - Fer (St 707) et des alliages Zircone-Nickel (St 198).
  7. Présentoir de comptoir réfrigéré (100) selon l'une quelconque des revendications de 4 à 6, où ledit film externe (40) comprend un film multicouches laminé composé de couches polymériques et au moins une couche d'aluminium déposée sur une couche polymérique.
EP19191706.1A 2018-09-07 2019-08-14 Comptoir frigorifique comportant un système d'isolation amélioré Active EP3620084B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201800008429 2018-09-07

Publications (2)

Publication Number Publication Date
EP3620084A1 EP3620084A1 (fr) 2020-03-11
EP3620084B1 true EP3620084B1 (fr) 2021-07-07

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EP19191706.1A Active EP3620084B1 (fr) 2018-09-07 2019-08-14 Comptoir frigorifique comportant un système d'isolation amélioré

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EP (1) EP3620084B1 (fr)
CN (1) CN110881813A (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003210344A1 (en) 2002-03-28 2003-10-13 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

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EP3620084A1 (fr) 2020-03-11
CN110881813A (zh) 2020-03-17

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