EP3691499A1 - Ventilated chiller display cabinet - Google Patents
Ventilated chiller display cabinetInfo
- Publication number
- EP3691499A1 EP3691499A1 EP18804360.8A EP18804360A EP3691499A1 EP 3691499 A1 EP3691499 A1 EP 3691499A1 EP 18804360 A EP18804360 A EP 18804360A EP 3691499 A1 EP3691499 A1 EP 3691499A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- shelf
- flow
- support surface
- openings
- 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.)
- Withdrawn
Links
- 238000007664 blowing Methods 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims description 5
- 235000013305 food Nutrition 0.000 claims description 4
- 239000011800 void material Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- A47F3/0482—Details common to both closed and open types
- A47F3/0486—Details common to both closed and open types for charging, displaying or discharging the articles
-
- 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
- A47F3/0456—Cases or cabinets of the counter type
-
- 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
- A47F2003/046—Cases or cabinets of the open type with forced air circulation with shelves having air ducts
Definitions
- the present invention relates to a cold ventilated display cabinet for the presentation of products such as food products.
- a piece of furniture comprising at least one open or closed enclosure comprising an upper area of exposure of the products and a lower technical area containing at least partially means for forced circulation of the air and means for producing cold in order to a cooling of said air, said zones being separated from each other at least by a presentation tray of the products and communicating with each other at least via blowing and air intake openings for a circulating the air between said zones with a flow of air flowing over the presentation tray from the at least one air blowing opening to the at least one air intake opening and a flow of return air circulating below the presentation tray from the at least one air intake opening to the at least one air blowing opening, the product presentation tray separating the zones from each other being surmounted by a shelf disposed on the path followed by the flow of air to go, this shelf delimiting a support surface of the products to be exposed.
- An object of the invention is to provide a display cabinet of the aforementioned type, whose design allows the reduction of the temperature differential between the bottom face and the top face of the shelf.
- Another object of the invention is to provide a display cabinet of the aforementioned type, whose design allows a limitation of a temperature rise of the shelf.
- the subject of the invention is a ventilated cold display cabinet for the presentation of products, such as food products, the cabinet comprising at least one enclosure comprising an upper zone of exposure of the products and a lower zone. at least partially containing means for forced circulation of air and cooling means for cooling said air, said zones being separated from each other at least by a product display tray and communicating with each other at least through blowing and air intake openings for looping air between said zones with a flow of air flowing over the presentation tray from the at least one air blowing opening to the at least one air intake opening and a return air flow flowing below the presentation tray from the at least one air intake opening.
- the product presentation tray separating the zones from one another being surmounted by a shelf disposed on the path followed by the flow of air, this shelf delimiting a support surface of the products to be exhibited, characterized in that the or at least one of the air blowing openings opens into the upper product exposure area at a lower level than that occupied by the product support surface of the shelf, in that the shelf is provided with at least an opening passing through the product support surface of said shelf, and in that the or at least one of the through openings of the support surface is an elongate opening extending transversely to the direction of flow of the incoming air flow.
- the or at least one of the through openings of the product support surface of the shelf which is an elongated opening extending transversely to the flow direction of the air flow affects the shape of a slot, called longitudinal.
- the product support surface of the shelf and the or at least one of the through openings of the support surface are made in one piece. This results in a simplification of manufacturing.
- the product support surface of the shelf is made of at least two elements and the or at least one of the through openings of the support surface is formed by the space left free between the two or at least two of the elements of the support surface.
- the product support surface of the shelf is a transparent or translucent surface.
- the product support surface of the shelf is a glazed surface.
- the product support surface of the shelf could be of another material, such as wood, composite material or the like.
- At least one of the through openings of the product support surface of the shelf is disposed in the middle longitudinal zone of the shelf.
- This arrangement allows an optimization of the action of the air flows on the temperature differential between top and bottom faces of the shelf.
- the through opening of the product support surface, or the set of through openings of the product support surface of the shelf, in the case of a plurality of openings. through the support surface represents a void area at least equal to 9% relative to the total area of the product support surface of the shelf.
- the upper zone of exposure of the products is equipped with at least one lighting member of the shelf and the or at least one of the through openings of the product support surface.
- the shelf is arranged plumb and below the lighting member.
- the heating potentially produced by the lighting member tends to easily cross the shelf.
- the or at least one of the air blowing openings has the shape of a chamber having an inlet and an outlet, this chamber being connected as input to the lower technical zone and at the outlet to the upper exposure zone, this chamber being provided between its entry and its exit of a honeycomb structure adapted to be traversed by a flow of air.
- the outlet of the or at least one of the air blowing openings in the upper zone of exposure of the products is oriented upwards.
- the shelf is delimited by two edges extending transversely to the flow of air to go
- the enclosure is, at the level of the upper exposure zone, delimited at least partially by so-called front and rear walls respectively extending transversely to the flow of air to go
- the edges of the shelf extending transversely to the flow of air to go are arranged spaced apart from the front and rear walls delimiting the upper zone d exposure of the enclosure.
- FIG. 1 represents a perspective view of an exhibition stand according to the invention
- FIG. 2 represents a detail view A of FIG. 1;
- - Figure 3 shows a cross-sectional view of an exposure unit according to the invention. ;
- Figure 4 shows a partial perspective view of an exposure unit taken at the air blowing opening
- Figure 5 shows a perspective view of another embodiment of an exhibit furniture according to the invention.
- the subject of the invention is a ventilated cold display cabinet 1 for the presentation of products, in particular food products.
- This piece of furniture 1 comprises an enclosure 3.
- This enclosure 3 can be open or closed. Open enclosure means an enclosure which permanently has a non-closable access inside the enclosure.
- This enclosure 3 comprises an upper zone 4 for exposing the products and a lower technical zone 5 containing at least partially means 6 for forced circulation of air and means 7 for producing cold for cooling said air.
- zones 4, 5 are separated from each other by a plate 8 for presenting the products which can be made in one or more elements.
- this presentation plate 8 is formed of several juxtaposed plate elements.
- the zones 4, 5 communicate with each other by at least one air-blowing aperture 9 arranged along one of the edges, called the rear edge or the service edge, of the upper exposure zone 4 and by an opening 12 of air intake disposed along the opposite edge said before or exposure of the upper exposure zone 4.
- the opening 9 or each of the air blowing openings 9, in the case of a plurality of air blowing openings 9, opens into the upper exposure zone 4 at a level lower than that occupied by the air blast opening 9. surface 1 1 product support of the shelf 2.
- This outlet 91 of the or each of the openings 9 of air blowing in the upper zone 4 of product exposure is oriented upwards, that is to say towards the top of the enclosure 3.
- This top of the enclosure 3, formed by the top face of the enclosure 3, is here shown partially open.
- the upward orientation of the outlet 91 of the or each of the openings 9 for blowing air makes it possible to generate an ascending airflow in the upper exposure zone 4 in the direction of the shelf 2.
- the opening 9 of air blowing affects the shape of a chamber 15.
- This chamber 15 has an inlet 16 and an outlet 17 which forms the outlet of the opening 9 for blowing air into the chamber. Zone 4 upper exposure. Indeed, this chamber 15 is connected at the input 16 to the lower technical zone 5 and at the outlet 17 to the upper exposure zone 4.
- This chamber 15 is provided between its inlet 16 and its outlet 17 with a honeycomb structure 10 which allows a good distribution of the flow of air passing through said structure.
- the air circulates in a loop between said zones 4 and 4. 5 with a flow F of air flowing over the presentation plate 8 from the chamber 15 to the opening or openings 12 of air intake and a flow F1 of return air flowing below the presentation tray 8 from the opening or openings 12 of air intake to the chamber 15.
- the chamber 3 is an open body facing the top face.
- This enclosure 3 has a top face at least partially open. This face of the top could have been closed.
- This enclosure 3 is at the level of the upper exposure zone 4 delimited at least partially by so-called front and rear walls respectively extending transversely to the flow F of forward air and represented at 31 and 32 in the figures.
- the front wall 31 of the enclosure intended to face the customers and which adjoins the front edge of the upper zone 4 of exposure, is generally at least partially transparent. It is formed here of a protective glass.
- a windscreen which comes to close at least partially the top face of the enclosure 3, is arranged in the extension of the window. Of course, and equally, this speaker could have been completely closed.
- the chamber 15 is in turn surmounted by a shelf on which the products can be placed before being introduced into the enclosure and arranged in particular on the plate 8 of exposure.
- This exposure plate 8 is arranged in a fixed or removable manner inside the enclosure 3.
- the means 6 for forced circulation of the air comprise, for their part, at least one, preferably a plurality of fans arranged along a line substantially parallel to one of the front or rear edges of the upper zone 4. preferably at least three fans per linear meter.
- these fans are arranged in the technical area, slightly offset from the plumb with the or openings 12 of air intake.
- the air intake can be effected by a single opening in the form of an elongated light extending along the front edge 1 1 of the upper exposure zone 4 formed here by one of edges of the tray or by a plurality of lights as shown in the figures.
- the means 7 for producing cold are formed by an evaporator of a refrigerant circuit.
- This evaporator can itself be made in the form of one or more heat exchangers, preferably plates.
- the plates may be plates arranged vertically and interconnected by a refrigerant circulation circuit called refrigeration circuit.
- the air is cooled by circulation between said plates before being introduced into the air blowing chamber 15 disposed along the rear edge of the upper exposure zone 4.
- This upper exposure zone 4 comprises, for the product exhibition, in addition to the presentation tray 8 separating the zones 4, 5, a shelf 2 overlying said tray 8.
- This shelf 2 is disposed at a distance from the presentation tray chosen to allow the shelf to be disposed in the path followed by the flow F air to go. This shelf should not be too far from the presentation tray 8.
- This shelf delimits a surface 1 1 support, in this case here a support plane of the products to be exposed.
- the or at least one, preferably each of the air blowing openings 9 opens into the upper zone 4 of exposure of the products to a level lower than that occupied by the surface 1 1 product support of the shelf 2
- the shelf 2 is, for its part, provided with at least one opening 13 passing through the product support surface 1 1 of the shelf 2, this at least one through opening 13 being an elongate opening extending transversely to the direction of flow of the air flow F go.
- the shelf 2, shown here in the form of a quadrangular shelf, is delimited by two edges 21 extending transversely to the flow F of air to go and two edges extending substantially parallel to the flow F of air to go. These edges of the shelf parallel to the air flow F go are in contact with the so-called side walls of the enclosure 3, these side walls connecting the front and rear walls of the enclosure 3.
- edges 21 of the shelf which extend transversely to the flow F of air are arranged spaced apart from the front walls 31 and rear 32 delimiting the upper zone 4 of exposure of the enclosure 3.
- the opening or each opening 13 through the shelf 2 is disposed spaced from the edges 21 of the shelf extending transversely to the flow F air to go.
- the or at least one of the openings 13 preferably extends equidistant from the edges 21 of the shelf 2.
- the flow F of the air coming from the opening 9 of blowing located below the shelf can pass under the shelf 2.
- This flow F air can also go over the air 2 taking the space left free between the edge 21 of the shelf extending transversely to the flow F of air to go and the wall
- the flow F of the air can also, after having crossed the top of the shelf, take the passage formed by the space left free between the edge 21 of the shelf 2 extending transversely to the flow F of air to go and the wall 31 before the enclosure opposite said edge 21.
- edges 21 of the shelf 2 in orthogonal projection on the plate 8 extend within the area defined by the plate 8 and set back from the edges of the plate 8 adjacent, one, the opening 9 air blowing, the other, the opening 12 of air intake.
- the surface 1 1 support of the shelf 2 can be made in one or more elements.
- this surface 1 1 support of the shelf is formed by means of a juxtaposition of trays with each quadrangular plate having a through opening 13. These through apertures 13 are aligned in the juxtaposed state of the trays and form a line which extends transversely to the direction of movement of the air flow F from the opening or openings 9 to the blowing opening or openings 12 'air.
- Each through opening 13 can be made in one piece with the product support surface 1 of the shelf 2, as shown in FIG. 1, where each through opening is formed by a cutout of the surface 1 1 of the product support. of the shelf 2.
- the product support surface 1 1 of the shelf 2 can be made of at least two elements and the or at least one of the through openings 13 of the surface 1 1 support is formed by the space left free between the two or at least two of the elements of the surface 1 1 support.
- the surface 1 1 support comprises both through openings made in one piece with said surface 1 1 support and through openings formed by a free space left between two components of the surface 1 1 support.
- the product support surface 1 of the shelf 2 is a transparent or translucent surface.
- the product support surface 1 1 of the shelf 2 is a glazed surface.
- the or at least one of the openings 13 through the surface 1 1 product support of the shelf 2 is disposed in the central longitudinal zone of the shelf 2.
- the opening 13 through the surface 1 1 product support, or the set of openings 13 through the surface 1 1 support products, in the case of a plurality of through apertures of the support surface represents a void area at least equal to 9% with respect to the total area of the surface 1 1 product support.
- the upper zone 4 of exposure of the products is equipped with at least one lighting member 14 of the shelf 2, such as a strip of diodes, or the through openings of the support surface Shelf products are ideally positioned plumb and below the lighting member 14.
- the operation of such a refrigerated cabinet is as follows. An airflow is produced by the fans arranged in the lower technical area. This flow of air is cooled by passing through the means 7 for producing cold before reaching the upper exposure zone via the chamber 15. In this upper exposure zone, part of the air flow F passes above the shelf while another part of the air flow F passes below the shelf before the air from these flows is sucked by the or the air intake openings and driven by the fans for a new loop circulation cycle. In the upper exposure area, a portion of the airflow flowing over the shelf passes through the shelf through the through aperture (s) of the shelf and creates a turbulence under the shelf. tend to chase hot air that could have accumulated under the underside of the shelf.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Freezers Or Refrigerated Showcases (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1759232A FR3071709B1 (en) | 2017-10-03 | 2017-10-03 | VENTILATED COLD EXPOSURE CABINET |
PCT/FR2018/052391 WO2019068994A1 (en) | 2017-10-03 | 2018-09-28 | Ventilated chiller display cabinet |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3691499A1 true EP3691499A1 (en) | 2020-08-12 |
Family
ID=60382408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18804360.8A Withdrawn EP3691499A1 (en) | 2017-10-03 | 2018-09-28 | Ventilated chiller display cabinet |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3691499A1 (en) |
FR (1) | FR3071709B1 (en) |
MA (1) | MA50624A (en) |
WO (1) | WO2019068994A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB722716A (en) * | 1952-12-01 | 1955-01-26 | Hussmann British Refrigeration | Refrigerator display cabinets |
GB2256266A (en) * | 1991-05-02 | 1992-12-02 | Malling Group Limited | Display cabinets |
CA2462992C (en) * | 2004-04-01 | 2006-03-21 | Foodtrust Of Prince Edward Island Limited | Refrigerated merchandiser |
DE102005045330A1 (en) * | 2005-09-22 | 2007-03-29 | BSH Bosch und Siemens Hausgeräte GmbH | Storage shelf for a refrigeration appliance |
EP2205131B1 (en) * | 2007-11-08 | 2014-09-03 | Carrier Corporation | Display case |
DE102012003936B4 (en) * | 2012-01-31 | 2022-01-27 | Liebherr-Hausgeräte Lienz Gmbh | Method for securing a shelf of a refrigerator and/or freezer |
-
2017
- 2017-10-03 FR FR1759232A patent/FR3071709B1/en active Active
-
2018
- 2018-09-28 WO PCT/FR2018/052391 patent/WO2019068994A1/en unknown
- 2018-09-28 MA MA050624A patent/MA50624A/en unknown
- 2018-09-28 EP EP18804360.8A patent/EP3691499A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2019068994A1 (en) | 2019-04-11 |
MA50624A (en) | 2021-05-05 |
FR3071709B1 (en) | 2019-10-11 |
FR3071709A1 (en) | 2019-04-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200311 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
RAV | Requested validation state of the european patent: fee paid |
Extension state: MA Effective date: 20200311 |
|
18D | Application deemed to be withdrawn |
Effective date: 20201124 |