EP0582940A1 - Armoire frigorifique - Google Patents

Armoire frigorifique Download PDF

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Publication number
EP0582940A1
EP0582940A1 EP93112418A EP93112418A EP0582940A1 EP 0582940 A1 EP0582940 A1 EP 0582940A1 EP 93112418 A EP93112418 A EP 93112418A EP 93112418 A EP93112418 A EP 93112418A EP 0582940 A1 EP0582940 A1 EP 0582940A1
Authority
EP
European Patent Office
Prior art keywords
cooling
table according
ventilation duct
compartments
air
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.)
Granted
Application number
EP93112418A
Other languages
German (de)
English (en)
Other versions
EP0582940B1 (fr
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.)
Horstke Grosskuecheneinrichtungen GmbH
Original Assignee
Horstke Grosskuecheneinrichtungen GmbH
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
Priority claimed from DE9210458U external-priority patent/DE9210458U1/de
Application filed by Horstke Grosskuecheneinrichtungen GmbH filed Critical Horstke Grosskuecheneinrichtungen GmbH
Publication of EP0582940A1 publication Critical patent/EP0582940A1/fr
Application granted granted Critical
Publication of EP0582940B1 publication Critical patent/EP0582940B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0408—Cases or cabinets of the closed type with forced air circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0665—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the top
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/08—Refrigerator tables

Definitions

  • the invention relates to a cooling table with an air-cooled cooling space, which has a row of cooling compartments arranged side by side, and with a cooling unit, which has an evaporator with a fan and a control with an operating device.
  • a cooling table In a cooling table according to the invention, the object is achieved in that the cooling unit is arranged on an end face of the cooling space, that in an upper region of the cooling space, a ventilation duct runs across the cooling compartments and has outlet openings directed into the cooling compartments, and in that the fan sucks the air out of the cooling compartments of the cold room via the evaporator and blows it back into the ventilation duct.
  • the main advantage of a cooling table according to the invention is an evaporator-free, continuous cooling space.
  • the inner wall of the cooling room can therefore be made essentially smooth and continuous, so that hygienically perfect cleaning can be done quickly and easily.
  • the risk of damage is reduced to a minimum.
  • the air is sucked out of the cooling space by the evaporator and blown into a ventilation duct by means of a blower which runs over the individual cooling compartments and through which the cooled air is blown into the cooling compartments.
  • a blower which runs over the individual cooling compartments and through which the cooled air is blown into the cooling compartments.
  • This enables a precisely aligned circulating air movement to take place within the cooling room, which cools the stored goods evenly.
  • the ventilation duct is arranged directly under the ceiling of the cold room.
  • the evaporator forms an end closure of the cooling space. This means that there is a very large area available for extracting air from the refrigerator.
  • the blower can be a cross-flow blower. This fan is usually installed within a channel which adjoins the evaporator and tapers like a funnel.
  • the fan is mounted within a blow-out duct and through this the air is blown into the ventilation duct.
  • the duct arranged after the evaporator continues with its tapering as a blow-out duct, which opens directly into the ventilation duct.
  • the fan is arranged in a fluidically favorable manner.
  • the cooling table according to the invention has only a single cooling unit, which is preferably designed as a module, which is supported by a frame and can be completely pulled out of the cooling table.
  • the cooling unit is thus freely accessible and can be easily maintained and serviced.
  • the cooling unit can be replaced quickly and only one cooling unit is required for different series, so that the easy interchangeability and storage ensure maximum safety and possible downtimes can be kept within limits.
  • the module has a front panel and that the control with operating device is integrated in the front panel. This achieves a front that does not require any additional doors and through which the cooling unit can be operated and controlled directly.
  • the evaporator can be connected to an external cooling machine.
  • a cooling unit is also designed as a module, so that the change from a module with a complete cooling unit to a unit that e.g. is suitable for the connection of an external central cooling device, can be carried out easily.
  • Necessary connection fittings such as expansion valve and solenoid valves are located directly next to the evaporator.
  • a complete cooling unit it is provided that the evaporator and a condenser are arranged separately one above the other and that the condenser is accessible to itself via a front door. In order to keep the efficiency of a condenser as high as possible, it must be cleaned frequently. The door provided makes this very easy and possible without any tools.
  • the cooling space and the drawer shutters and doors closing the cooling compartments at the front are double-walled with intermediate insulating plates, which preferably consist of CFC-free - according to the Montreal conference - rigid polyurethane foam.
  • intermediate insulating plates which preferably consist of CFC-free - according to the Montreal conference - rigid polyurethane foam.
  • Such a construction is practical in the housing wall or in the drawer panels and doors no cold spots.
  • rigid foam panels cannot enter into a foam connection with the housing walls.
  • rigid foam panels made of polyurethane, for example 30M / HFA have a K value of 0.64 at a thickness of 1.8 kg / cm2 and are therefore ideally suited for insulation purposes.
  • such insulation panels are also recyclable.
  • the ventilation duct is designed as a flat duct and over almost the entire depth of the cooling space.
  • the e.g. Cold air blown into the flat duct via a blow-out duct can be distributed over the entire upper side of the cooling space and enter through the outlet openings, as a result of which a largely uniform circulating air flow is established.
  • a channel of rectangular cross section is advantageously provided.
  • the cooling compartments are often equipped with telescopic drawers, the telescopic pulls of which drop diagonally to the rear so that the drawers can close automatically under the influence of gravity.
  • the cross section of the ventilation duct increases towards the rear wall of the cooling space, which contributes to an even distribution of cold air.
  • the outlet openings of the air duct are, seen in the flow direction of the air, arranged in a front region of each cooling compartment transversely to the flow direction in the bottom of the air duct on the cooling chamber side; a large outlet opening is also provided at the end of the air duct.
  • a uniform air outlet is thus achieved in each cooling compartment, the cooling air entering in particular in the area between the individual cooling compartments, where it can circulate freely and unhindered.
  • the large outlet opening at the end of the ventilation duct ensures pressure equalization between the cooling room and the end of the ventilation duct.
  • profiles having tear-off edges can be arranged in front of the outlet openings.
  • tear-off edges can e.g. be formed by glued strips, over which the air must flow, the air flow being directed directly into the outlet opening before re-application to the channel floor.
  • a number of outlet openings can be arranged parallel to the direction of flow in the bottom of the ventilation duct on the cooling chamber side towards the rear and parallel to the latter, which likewise ensure uniform ventilation, particularly in the case of inclined telescopic pull-outs.
  • a good circulating air flow in the refrigerator is ultimately supported if the cross section or the number of outlet openings increases in the direction of flow.
  • the cooling table has a trough which extends over one or more cooling compartments and is accessible through a table top recess, between the bottom and the cooling compartments of which the ventilation duct runs as a flat duct.
  • the tub and the cooling compartments are advantageously in one of the Table top arranged separate table body, which can be built under a table top. Alternatively, it is also possible to insert the tub into a table top recess.
  • the tub is also cooled by circulating air, so that cooling pipes are eliminated and the tub is consequently easy to clean. The flow of cooling air flows through the tub, so that all tub areas are brought to the same temperature.
  • the trough bottom is advantageously inclined towards a drain, the drain being blocked by a shut-off device, e.g. a stopper, tap or valve that can be shut off.
  • a shut-off device e.g. a stopper, tap or valve that can be shut off.
  • a cooling space 1 is formed by four cooling compartments 2, 3, 4, 5.
  • the cooling compartments 4, 5 are closed by doors 6, 6 and the cooling compartments 2, 3 by drawer panels 7.
  • a cooling unit is arranged on an end face of the cooling room 1. All subjects have standard catering dimensions.
  • the cooling unit consists of an evaporator 9 with a blower 10 and a controller, the operating device 11 of which is embedded in a front panel 12 and is therefore accessible from the outside (cf. FIG. 1).
  • the evaporator 9 of the cooling unit forms a partial closure of the end face 13 of the cooling space 1.
  • the remaining area of the end face 13 is closed by an insulating housing wall.
  • a ventilation duct 14 with outlet openings 15, 16 runs over the cooling compartments 2 to 5.
  • the arrows entered illustrate how the blower 10 sucks the air out of the cooling space 1 through the evaporator 9 and blows it into the ventilation duct 14.
  • the air is guided behind the evaporator 9 into a channel which tapers like a funnel and merges into a blow-out channel 17 which is detachably connected to the ventilation channel 14.
  • the blower 10 is designed as a cross-flow blower and is mounted inside the blow-out duct 17.
  • Fig. 3 shows a top view of the arrangement of the outlet openings 15, 16 within the ventilation duct 14 and further that the ventilation duct 14 is formed over almost the entire depth of the cooling space 1 as a flat channel.
  • the outlet openings 16 are, seen in the direction of flow of the air, in a front region of each cooling compartment 2, 3, 4, 5, the direction of flow in the ventilation duct 14 being indicated by arrows 18.
  • a large outlet opening 15, like the outlet openings 16 is let into the bottom 19 of the ventilation duct 14 transversely to the flow direction 18.
  • profiles 20 are attached in front of the outlet openings 16, which provide a vortex formation behind their tear-off edge 21 and thus enable good air outlet through the outlet openings 16, as shown by the arrows 22 in FIG 6 show.
  • Further outlet openings 24 are arranged parallel to the rear wall 23 along the rear wall 23 of the ventilation duct 14.
  • Fig. 4 shows a complete cooling unit, which is designed as a module 25 carried by a frame 26 and can be pulled out completely from the compartment 8 of the cooling room is.
  • the module 25 is provided with a front panel 12, in which the control with the operating device 11 is integrated.
  • the module 25 is a complete cooling unit which, in addition to the evaporator 9, also has a condenser 28.
  • the evaporator 9 and the condenser 28 are, separated from one another, arranged one above the other in the frame 26. This offers the possibility of making the condenser 28 accessible for maintenance purposes and cleaning via a front door 29 (cf. FIGS. 1 and 2).
  • FIG. 5 - a cross-section through a cooling table in the area of a drawer, which is not to scale, the cooling space 1 and the drawer shutters 7 and doors 6 closing the cooling compartments 2 to 5 on the front are double-walled with intermediate insulating plates 30, which is an excellent, cold bridge-free wall construction enables.
  • 5 also shows a ventilation duct 31, the cross section of which widens towards the rear wall 32 of the cooling space 1.
  • the ventilation duct 31 takes into account here that the drawer 33 is equipped with inclined telescopic cables 34 so that it can close automatically under the influence of gravity. Due to the inclined telescopic cables 34, a space enlarged towards the rear wall 32 must be supplied with cold air through the outlet openings 16 of the channel 31. To ensure this reliably, the cross section of the ventilation duct 31 towards the rear wall 32 is also enlarged.
  • the side walls 35 of the drawer 33 are provided with holes 36, which support the air circulation in the cold room 1 according to the arrows in FIG. 2.
  • the table body 37 is formed separately from the table top 38 and comprises the cooling unit compartment 8, four cooling compartments 39, 40 and a trough 41 arranged above the cooling compartments.
  • the cooling compartment 39 accommodates a drawer 42, while the cooling compartments 40 have doors 43, 44, 45 are provided.
  • the trough 41 is received by a cooling air space 46 and the cooling air flows around it on all sides.
  • the tub 41 is provided with air outlet openings 47 at its longitudinal end adjacent to the cooling unit and with air outlet openings 48 at its opposite longitudinal end so that the cooling air also flows through the interior of the tub in the longitudinal direction.
  • a flat duct 50 for the cooling air flow is provided above the cooling compartments 39, 40, from which the cooling air flows - as in the exemplary embodiment described above - into the cooling compartments through upper air outlet openings 51, from where the cooling air flows through lower air outlet openings 52
  • the cooling compartments flow back to the cooling unit.
  • the tub 41 is accessible from above through a recess 53 in the table top 38. It is covered by a telescopically collapsible cover 54 which is hinged on the rear side by a hinge 55 and is hinged to the table top 38.
  • the trough bottom 49 slopes down to an outlet 56, which can be a flexible hose.
  • a shut-off device 57 is advantageously provided in the sequence.
  • Reference list 1 Cold room 31 Ventilation duct 2nd Refrigerator compartment 32 Back wall 3rd Refrigerator compartment 33 drawer 4th Refrigerator compartment 34 Telescopic train 5 Refrigerator compartment 35 Side wall 6 door 36 Holes 7 Drawer cover 37 Table body 8th subject 38 Table top 9 Evaporator 39 Refrigerator compartment 10th fan 40 Refrigerator compartment 11 Operating device 41 Tub 12th Front panel 42 Drawer 13 Face 43 door 14 Ventilation duct 44 door 15 Outlet opening 45 door 16 Outlet opening 46 Cooling air space 17th Exhaust duct 47 Air outlet opening 18th Flow direction 48 Air outlet opening 19th ground 49 Tub floor 20th profile 50 Flat channel 21 Tear-off edge 51 Air outlet opening 22 Arrows 52 Air outlet opening 23 Back wall 53 Recess 24th Outlet openings 54 cover 25th module 55 hinge 26 frame 56 procedure 28 Condenser 57 Shut-off device 29 door 30th Insulating plate

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP93112418A 1992-08-05 1993-08-03 Armoire frigorifique Expired - Lifetime EP0582940B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9210458U DE9210458U1 (de) 1992-08-05 1992-08-05 Kühltisch
DE9210458U 1992-08-05
DE4317456 1993-05-26
DE4317456A DE4317456C2 (de) 1992-08-05 1993-05-26 Kühltisch

Publications (2)

Publication Number Publication Date
EP0582940A1 true EP0582940A1 (fr) 1994-02-16
EP0582940B1 EP0582940B1 (fr) 1996-10-09

Family

ID=25926215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112418A Expired - Lifetime EP0582940B1 (fr) 1992-08-05 1993-08-03 Armoire frigorifique

Country Status (2)

Country Link
EP (1) EP0582940B1 (fr)
AT (1) ATE143781T1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29506735U1 (de) * 1995-04-20 1995-06-14 Holland Kühlmöbel K. & M. Holland GmbH, 94327 Bogen Theke mit eingebauter Kühleinrichtung, insbesondere für Gastronomiebetriebe
WO1997006715A1 (fr) * 1995-08-16 1997-02-27 Floeysvik Jan Egil Comptoir refrigerant a tiroirs
WO1997033504A1 (fr) * 1996-03-13 1997-09-18 Floeysvik Jan Egil Armoire de refrigeration
ITPN20090059A1 (it) * 2009-10-13 2011-04-14 Ali Spa "sistema innovativo di raffreddamento derrate in un tavolo refrigerato"
DE202018004422U1 (de) 2018-09-25 2018-10-11 Edgar Hakemann Steckerfertiges Kühlmöbel
CN110345691A (zh) * 2019-07-30 2019-10-18 中山市晨凌电器有限公司 一种模块化制冷机组系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE495191A (fr) *
US2275323A (en) * 1940-05-29 1942-03-03 Gen Motors Corp Refrigerating apparatus
US2788641A (en) * 1953-06-19 1957-04-16 Freez Aire Corp Freezing unit
US4457140A (en) * 1982-05-21 1984-07-03 Leitner Corporation Modular refrigeration unit and cabinet systems therewith
US4802340A (en) * 1987-10-28 1989-02-07 Hobart Corporation Refrigerated salad bar

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH588670A5 (fr) * 1975-11-12 1977-06-15 Giovanna H Sa

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE495191A (fr) *
US2275323A (en) * 1940-05-29 1942-03-03 Gen Motors Corp Refrigerating apparatus
US2788641A (en) * 1953-06-19 1957-04-16 Freez Aire Corp Freezing unit
US4457140A (en) * 1982-05-21 1984-07-03 Leitner Corporation Modular refrigeration unit and cabinet systems therewith
US4802340A (en) * 1987-10-28 1989-02-07 Hobart Corporation Refrigerated salad bar

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29506735U1 (de) * 1995-04-20 1995-06-14 Holland Kühlmöbel K. & M. Holland GmbH, 94327 Bogen Theke mit eingebauter Kühleinrichtung, insbesondere für Gastronomiebetriebe
WO1997006715A1 (fr) * 1995-08-16 1997-02-27 Floeysvik Jan Egil Comptoir refrigerant a tiroirs
US6014867A (en) * 1995-08-16 2000-01-18 Ab Electrolux Refrigerating counter with drawers
WO1997033504A1 (fr) * 1996-03-13 1997-09-18 Floeysvik Jan Egil Armoire de refrigeration
ITPN20090059A1 (it) * 2009-10-13 2011-04-14 Ali Spa "sistema innovativo di raffreddamento derrate in un tavolo refrigerato"
EP2325585A1 (fr) * 2009-10-13 2011-05-25 ALI S.p.A.-DIV. FRIULINOX Système de refroidissement d'aliments dans une table réfrigérée
DE202018004422U1 (de) 2018-09-25 2018-10-11 Edgar Hakemann Steckerfertiges Kühlmöbel
CN110345691A (zh) * 2019-07-30 2019-10-18 中山市晨凌电器有限公司 一种模块化制冷机组系统

Also Published As

Publication number Publication date
ATE143781T1 (de) 1996-10-15
EP0582940B1 (fr) 1996-10-09

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