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
• • 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
  • A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains

Definitions

• the invention relates to a refrigeration cabinet, in particular vertical cabinet, of the type with cold air curtains at the front of the cabinet in front of the exposed foodstuffs, essentially comprising a high part for the outlet of cold air and a device for taking up air disposed at the upper edge of the front wall of the cabinet tank and comprising air return openings located in a substantially horizontal plane, under the effect of a fan device provided in said tank.
• Refrigerators of this type which are known, have the major drawback that the horizontal recovery device causes a relatively large increase in the width of the cabinet, beyond its useful space for displaying foodstuffs.
• the present invention aims to provide a refrigeration unit which overcomes the drawback which has just been stated.
• a refrigeration unit is characterized in that the air intake device further comprises return openings located in a substantially horizontal plane air return openings located in a substantially vertical plane .
• the horizontal and vertical return openings are part of horizontal and vertical louvers respectively and an inclined anti-detachment surface of the air curtain is provided between the two air return louvers.
• FIG. 1 is a perspective view of a refrigeration unit according to the invention
• FIG. 2 is a schematic view, in section, vertical and perpendicular to an axis of a vertical refrigeration unit, according to the invention
• FIG. 3 is a perspective view of the lower part of a refrigeration unit according to the invention, of the type shown diagrammatically in FIG. 1;
• FIG. 4 is a view on a larger scale of a louver support indicated in IV of FIG. 3;
• FIG. 5 is a perspective view of the louver support according to FIG. 4;
• FIG. 6 is a view similar to FIG. 4 of another version of an embodiment of a louver support according to the invention.
• FIG 1 which shows in a perspective view a vertical refrigeration unit according to the invention
• the reference numbers 1 to 4 respectively illustrate the rear wall of the cabinet, the part forming the roof, the bottom part constituting the tank and a plurality shelves, vertically superimposed and each intended to carry refrigerated or frozen food.
• the shelves are carried by the rear wall of the cabinet.
• the cabinet is equipped with a cooling unit 6 of the exchanger / and evaporator type and a certain number of fans 7, which are housed in the tank, as shown diagrammatically in FIGS. 1 and 2.
• the fans generate the flows d air as symbolized by arrows in Figure 1 and shown more clearly in Figure 2, as known per se.
• FIG. 2 also shows that part of the air separates from the vertically rising flow to be distributed to the shelves by passing over the goods schematized at 14 in FIGS. 1 and 2 and joining the vertical curtain 11.
• the curtain of cold air is taken up at the bottom of the cabinet by a recovery device 15 at the upper edge of the front wall 16 of the tank 3, under the effect of the fans 7.
• FIG. 2 illustrates the presence of a second air curtain indicated at 18, exterior, that is to say in front of the cold air curtain 11.
• This curtain consists of ambient air taken from the top of the cabinet by a fan 20 and rejected down the aisle at the front of the cabinet.
• the secondary curtain 18 is not cooled.
• FIGs 3 to 6 specifically illustrate the device 15 for recovering cold air from the curtain 11. This device will now be described in more detail with reference to these figures.
• the cold air intake device essentially comprises a horizontal return louver 22, that is to say provided with openings 23 located in a substantially horizontal plane and shaped two rows of aligned slots and a vertical louver 24 having openings 25 arranged in a substantially vertical plane and also in the form of two rows of slots.
• the cold air intake device comprises, between the two horizontal louvers 22 and vertical 24, an inclined face 27, which extends in a 45 ° angle to the horizontal and vertical planes. Thanks to this inclined face 27 the two flows Fa and Fb quickly glue downstream of the recoveries so as to obtain a rapid relaminarization.
• the horizontal and vertical louvers are supported by a plurality of support pieces 28 distributed uniformly along the longitudinal axis of the piece of furniture.
• Figure 5 is a perspective view of such a support piece 28.
• middle portion 29 in the form of a plate which extends perpendicular to one longitudinal axis of the furniture and whose edge rear 30 oriented towards the tank is arched and has the curved shape clearly visible in Figure 4.
• the front edge of the middle part 29 has vertically and horizontally projecting parts 31, 32 which constitute support portions of the blades 34 and 35 horizontal and vertical louvers. Between these two support portions 31 and 32 projecting vertically upward and horizontally outward is provided an intermediate portion 37 in the form of a cross-member which extends laterally on either side of the intermediate part 29, in the direction of the axis of the furniture and has a substantially U-shaped cross section.
• this portion 37 which serves to support a profile 39 whose external free front face constitutes the inclined face 27 anti-detachment, which is interposed between the two horizontal and vertical recoveries of the curtain of cold air.
• the profile 39 comprises, projecting towards the rear, two fins 40 which come into engagement behind the branches 41 of the cross member or support bar 37 when the profile is put in place between the two horizontal and vertical. It should also be noted that, at the level of the upper and lower longitudinal edges, the profile 39 has curved projection 51 allowing the placement of labels not shown.
• the support 28 comprises a part forming a foot 42 allowing it to be fixed to the front wall 16 of the tank.
• This part forming a foot 42 projects laterally on either side of the median part of the support and has, in cross section, the shape of an L whose long arm 43 is applied and fixed against the internal face of the front wall 16 of the tank while the other branch 44 bears on the substantially horizontal upper face of the tank wall.
• the end of the branch 44 is bent at 45 so as to constitute a bracket for fixing the support 28 on the front wall of the tank.
• the support 28 is fixed to the front wall of the tank by screws 46, the through holes of which are indicated at 47 in FIG. 5.
• the support piece 28 carries a horizontal bar 49 for supporting the shelves or trays 4 of the piece of furniture by means of an intermediate profile 50 which extends over the entire length of the piece of furniture and constitutes a lateral limitation wall of the horizontal recovery louver.
• the other lateral wall delimiting the louver is formed by the upper edge 51 of the front anti-separation profile 39.
• the lower edge 51 constitutes a side delimiting side of the vertical recovery louver delimited on the other side by a second lower strip 35. The strips are each inserted into a slot in the support.
• FIG. 6 shows another embodiment of the mixed air intake device, established for a piece of furniture whose front tank wall is enhanced by an additional facade element 57.
• the support part of the return louvers horizontal and vertical which now have the reference 28 ′ is identical to the part 28 in its portion of actual support for the shutters, but is configured differently in its lower part for fixing to the tank.
• This part now has in its front part a Z-shaped flange having an upper part 59 for fixing the raising facade wall 57, which is followed by an L-shaped portion 60 corresponding to the shaped foot part L 42 of the support piece 28 and which allows attachment to the front wall of the tank.
• the rear edge oriented towards the inside of the tank of the support part 28 ′, in its part located just below the support portion of the horizontal recovery louver is produced in the form of a flange 61 which extends substantially vertically and allows the establishment of a vertical plate 62 which extends over the entire length of the piece of furniture and establishes downstream of the horizontal and vertical recoveries a chimney 64 for re-bonding the recovery flows, leading this flow thus relaminarized towards the rear outlet edge 68 of the support piece, which is configured as the rear edge 30 of the support piece 28 to ensure the establishment of the spiral flow of air between the recovery device 15 and the fans 7 .
• the support parts for the horizontal and vertical louvers can have any other suitable shape, provided that they meet the two aforementioned requirements of a minimum separation between the two occasions and a reassembly and a re-laminarization of the air flows of return immediately downstream of the two recoveries, and of the establishment of the spiral air circulation between the return and the air recirculation fans towards the top of the cabinet passing through the cooling unit 6 .
• the support pieces 28 and 28 ′ have, in addition to the function which has just been described, the additional function of ensuring the recovery of the efforts of the shelves or trays where the foodstuffs and the transmission are exposed. of these efforts at the tank.

Landscapes

• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Freezers Or Refrigerated Showcases (AREA)
• Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
• Devices That Are Associated With Refrigeration Equipment (AREA)
• Duct Arrangements (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8866321

Family Applications (1)

Country Status (10)

Cited By (3)

Families Citing this family (17)

Citations (2)

Family Cites Families (4)

• 2001
  • 2001-08-06 FR FR0110509A patent/FR2828079B1/fr not_active Expired - Fee Related
• 2002
  • 2002-08-06 CN CNB028154029A patent/CN1269436C/zh not_active Expired - Fee Related
  • 2002-08-06 AT AT02794624T patent/ATE397876T1/de not_active IP Right Cessation
  • 2002-08-06 EP EP02794624A patent/EP1414327B1/de not_active Expired - Lifetime
  • 2002-08-06 HU HU0401183A patent/HUP0401183A2/hu unknown
  • 2002-08-06 DE DE60227077T patent/DE60227077D1/de not_active Expired - Fee Related
  • 2002-08-06 WO PCT/FR2002/002814 patent/WO2003013317A1/fr not_active Ceased
  • 2002-08-06 KR KR10-2004-7001856A patent/KR20040035719A/ko not_active Withdrawn
  • 2002-08-06 PL PL02367690A patent/PL367690A1/xx unknown
  • 2002-08-06 RU RU2004102798/12A patent/RU2297782C2/ru not_active IP Right Cessation

Patent Citations (2)

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