US20060107676A1 - Cabinet for the storage of goods requiring refrigeration - Google Patents

Cabinet for the storage of goods requiring refrigeration Download PDF

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Publication number
US20060107676A1
US20060107676A1 US10/522,304 US52230405A US2006107676A1 US 20060107676 A1 US20060107676 A1 US 20060107676A1 US 52230405 A US52230405 A US 52230405A US 2006107676 A1 US2006107676 A1 US 2006107676A1
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US
United States
Prior art keywords
cabinet
heat exchanger
exchanger means
channel system
air channel
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.)
Abandoned
Application number
US10/522,304
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English (en)
Inventor
Vilmos Fockter
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20060107676A1 publication Critical patent/US20060107676A1/en
Abandoned legal-status Critical Current

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    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/023—Air curtain closures
    • 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
    • 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
    • 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
    • F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices

Definitions

  • the invention relates to a cabinet for the storage of goods requiring refrigeration, consisting of a modular frame structure, space-delimiting elements and shelves bearing the goods.
  • Non-refrigerated cabinets made usually of galvanized sintered steel plates, are typically structured in a modular way, that is, thanks to their structural design, they can be assembled on the spot, out of “elements” of a smaller size, in function of the demands ever of the user and the possibilities offered by the premises.
  • Refrigerating cabinets are pieces of ready-built furniture manufactured according to the demand ever, transported to the place of use—where only their caloric heat exchanger and electronic units are to be connected to supply sources installed beforehand—in assembled form, ready for operation.
  • Refrigerating wall cabinets used mainly for the purpose of storing milk and dairy goods, meat and deep-frozen food goods, are typically of a robust design and include an insulated refrigerating furniture body set in a rigid steel frame.
  • the insulation is usually a two-component, high-density polyurethane foam introduced between two steel plates, which forms a sandwich-type panel element of some sort with the latter after solidification. This is the insulated frame of the refrigerating cabinet, and the electrical units and caloric heat exchanger parts are built into this furniture body.
  • the cabinet system used for storing goods is also incorporated into this ready-built frame structure.
  • Systems similar to the refrigerating cabinet outlined above are manufactured and distributed as “RP Standard refrigerated wall cabinets” by the Austrian Hauserdeanlagen GmbH (A-4040 Linz, Am Hartmayrgut 4-6).
  • a piece of ready-built refrigerating cabinet is a massive unit that cannot be disassembled into its units after manufacture. Of course, it is possible to manufacture this, too, in non-standard sizes, to design elements broken in some angle or corner elements, but the relevant manufacturing costs often exceed the production cost of refrigerating furniture pieces manufactured in standard sizes.
  • a cabinet for the storage of goods requiring refrigeration having a modular assembled frame structure, space-delimiting elements and shelves supporting the goods.
  • said cabinet is equipped it with a caloric heat exchanger means generating an air flow of a temperature selected to suit the goods, and an air channel system communicating with it.
  • the caloric heat exchanger means' includes an air inlet, an evaporator, a fan and an air outlet.
  • the walls of the air channel system consist in part of the frame structure and space-delimiting elements of the said cabinet.
  • the walls of the air channel system are at least partly heat-insulated.
  • the heat exchanger means and air channel system of the cabinet be designed as a single unit attachable to the assembled cabinet.
  • the caloric heat exchanger means generating the air stream is arranged under the lowest shelf of the cabinet, and the air channel system communicating with it is located deep-set behind the frame structure of the cabinet.
  • the caloric heat exchanger means generating the air stream is built into the upper space-delimiting element of the cabinet, and the air channel system communicating with it is located deep-set behind the frame structure of the cabinet.
  • the caloric heat exchanger means of the cabinet is associated with a condensing unit requiring power supply only, that is arranged on the cabinet, thermally insulated from the caloric heat exchanger means.
  • FIG. 1 provides an perspective view of the frame structure, space-delimiting elements and shelves of a non-refrigerated cabinet
  • FIG. 2 shows the cabinet according to FIG. 1 in rear view
  • FIG. 3 indicates a possible implementation of the caloric heat exchanger means of the cabinet according to the present invention
  • FIG. 4 shows a possible implementation of the house incorporating the caloric heat exchanger means according to FIG. 3 ;
  • FIG. 5 shows the house according to FIG. 4 , partly fitted to its place in the cabinet according to FIG. 1 ;
  • FIG. 6 shows a possible embodiment of combining the air channel system and the house, in the course of the air channel system being superimposed onto the house;
  • FIG. 7 shows the air channel system, almost fitted onto the house, according to FIG. 6 ;
  • FIG. 8 shows the cabinet including the caloric heat exchanger means fitted to its final place, partly in rear view
  • FIG. 9 shows a cross-section of a possible embodiment of the caloric heat exchanger means and the air channel system designed as a single unit, installed already;
  • FIG. 10 shows a caloric heat exchanger means placed in the upper part of the cabinet
  • FIG. 11 shows the schematic cross-section of a two-sided (twin) refrigerated cabinet joined back to back and
  • FIG. 12 is the schematic cross-section of a cabinet according to the present invention, supplemented with a separate condensing unit.
  • FIG. 1 shows the frame structure and space-delimiting elements of a well-known, extensively manufactured and distributed non-refrigerated cabinet type.
  • the frame structure consists of two column elements 1 whose Vertical size essentially determines the height of the cabinet, with two horizontal foot elements 2 attached to the lower end of the column elements 1 .
  • the length of the horizontal foot elements 2 determines the depth of the cabinet to be made, that is, the depth of the shelves on the cabinet.
  • Legs 3 are fitted to the ends of each column element 1 and foot element 2 .
  • the legs 3 are optionally designed as screwed paw to regulate height, or one designed as a wheel or fitted with a wheel to allow to move of the cabinet.
  • Column elements are usually made of a hollow, preferably rectangular section or a U-shaped bar, provided with openings in one row or in two rows into which other parts constituting the cabinet can be fixed by hanging in order to allow a modular arrangement. Accordingly, on FIG. 1 , between the two column elements 1 , back panels 4 are inserted vertically, whose length determines the width of the finished cabinet. Back panels 4 can be solid or perforated to promote the airing of goods placed in the cabinet.
  • Base shelf 5 is fitted on foot elements 2 , with another two shelves 6 arranged on consoles fixed by hanging on column elements 1 above it. Mainly for aesthetic reasons, between legs 3 of foot elements 2 a cover 7 is placed, attached to a base shelf 5 . Owing to its design, the finished cabinet, assembled this way, can be used as a wall cabinet.
  • FIG. 2 shows the cabinet in FIG. 1 in rear view. As can be seen, under base shelf 5 and between column elements 1 , there is sufficient space to ensure the circulation of air of a temperature determined by appropriate technical measures.
  • a heat exchanger means 8 is built into the cabinet, providing air of the temperature desirable for the goods placed on the cabinet or, more precisely, on base shelf 5 and shelves 6 .
  • This caloric heat exchanger means 8 can be designed for example according to the method outlined in FIG. 3 , and it can be placed in a housing 9 as shown in FIG. 4 .
  • Housing 9 of heat exchanger means 8 has an air inlet 10 , coinciding, in operating position, with internal opening 11 in base shelf 5 , in the given case, preferably along almost its entire length.
  • Housing 9 may include heat insulation 12 , but in the given case, material of sufficient heat insulating capacity as the material of housing 9 can be used, hence, for example, housing 9 can be made entirely of polyurethane foam.
  • Behind air inlet 10 considering the flow direction of the generated air stream—a heat exchanger 13 , in the given case a lamellar evaporator is positioned, connected in a way that is not shown in the drawing, to the cooling medium source created in the premises in advance.
  • an outlet 14 is formed to allow to dispose of humidity/liquids having entered housing 9 or generated there, and behind heat exchanger 13 , there is a fan 15 connected to an air outlet 16 of the housing 9 .
  • Heat exchanger means 8 includes, as a matter of course, in addition to the units indicated in the drawing, the supply valve necessary for introducing the cooling medium, other control and safety elements, and owing to its design presented here, it conducts cold air onto the goods to be refrigerated, more precisely, it creates and maintains a continuous air curtain between the external space and the internal refrigerated space of the cabinet.
  • Caloric heat exchanger means 8 can be placed as shown in the cross-section on FIG. 9 , under base shelf 5 of the cabinet, or in the uppermost part of the non-refrigerated cabinet (see FIG. 10 ). It can be ensured in both cases that the installation of caloric heat exchanger means 8 shall not alter the structure of the cabinet, and hence heat exchanger means 8 can be ordered as optional accessory at will, and it can be mounted onto or dismounted from the cabinet at any time.
  • air outlet 16 of the caloric beat exchanger means 8 is not positioned in the same plane as the air inlet 10 , but it rises higher, like a chimney.
  • the explanation for that is that, putting housing 9 including heat exchanger means 8 into working position, that is, pushing it into the space defined by column elements 1 , consoles 2 and cover 7 of the cabinet, air outlet 16 will be positioned in between column elements 1 , behind back plane elements 4 . This operation is shown in FIG. 5 .
  • an air channel system 17 preferably an insulated one, in several ways, so that the said channel, communicating with caloric heat exchanger means 8 , shall direct cooled air exiting the latter to the top of the cabinet, and conduct it to the goods stored on shelves 6 .
  • This air will then proceed downwards along the front plane of the cabinet, in front of shelves 6 , as an air curtain, to re-enter subsequently, through air inlet 10 of the heat exchanger means 8 , housing 9 of heat exchanger means 8 .
  • Air channel system 17 is preferably provided with insulation on the back side of the cabinet and on the sides of its column elements 1 , and according to a preferred embodiment, it is perforated on its side to back panels 4 , and hence it ensures, similarly to the traditional cabinets, the free flow of air outwards, towards the open product space to be refrigerated.
  • Heat-insulated air channel system 17 is directly connected to caloric heat exchanger means 8 placed under the base shelf 5 . This may happen in the manner shown in FIGS. 6 and 7 , that is, air channel system 17 may be shrouded onto caloric heat exchanger means 8 , and then the entire structure be pulled under and behind the cabinet.
  • Air drawn and cooled via heat exchanger means 8 enters through air channel system 17 built in between column elements 1 to flow up to the top of the cabinet, to the upper outlet, that can be formed directly above the uppermost back plane 4 or, if the cabinet has, similarly to the display refrigeration counters designed like pieces of furniture, space-delimiting elements both on top and on its two sides (for the sake of better understanding, lateral space-delimiting elements are omitted from the drawings), then it may exit through opening 18 formed in the top of the cabinet, to pass by shelves 6 , continuously cooling them as well as goods stored on base shelf 5 in the meantime.
  • Air channel system 17 is built in between column elements 1 from the rear, and it is fixed in a way allowing to take it out and away at any time without destruction if it is no longer necessary to operate the cabinet as refrigerated cabinet.
  • housing 9 of caloric heat exchanger means 8 is also installed detachably, and it can be disconnected easily from the caloric and electric supply sources of heat exchanger 13 and fan 15 , respectively.
  • caloric heat exchanger means 8 is located roof-like in the upper part of the cabinet.
  • heat exchanger means 8 will suck the air through the air channel system 17 from the lower part of the cabinet, and cool it in its upper part with the help of the heat exchanger 13 , and create an air curtain by letting it flow out through air outlet 16 formed at the upper external edge of the cabinet, that will separate the inner space of the cabinet from the outer space and cool goods stored on shelves 6 and base shelf 5 .
  • This solution allows, similarly to the traditional refrigerating serve over counters, the refrigeration of goods placed on a platform.
  • foot elements 2 and the cabinet shall be covered skirt-like at the bottom, so that air channel system 17 should circulate the air inside the cabinet.
  • caloric heat exchanger means 8 and air channel system 17 either fitted to each other or designed as a single, integrated unit conducting the air creating the air curtain in a heat-insulated way in all directions.
  • air channel system 17 may also be constituted by back panels 4 of the cabinet, the wall of the room including the cabinet, and the column elements 1 as well.
  • heat exchanger means 8 and air channel system 17 realized as a single integrated structural module shall be treated as advantageous implementation, as shown in FIG. 8 , because the module manufactured this way, suitable for numerous cabinets owing to the modular structure, can be coupled in a simple way with the cabinet that is to be transformed into a refrigerating-type cabinet.
  • the cabinet can be adjusted at any time to the needs of the user or the transformation of the premises, and if two of the presented cabinets are placed back to back, it is possible to form a twin refrigerated cabinet as shown in FIG. 11 .
  • the proposed cabinet can also be used with an in-built condensing unit.
  • condensing unit 19 shall be used preferably thermally separated from caloric heat exchanger means 8 , and placed at the back of the cabinet or equipped with special casing, fixed on the top of it.
  • the proposed cabinet can be altered or re-built easily and quickly later on to match the turnover ever and, thanks to its structural design, it is substantially cheaper than the traditional, ready-built refrigerating cabinets.

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
US10/522,304 2002-05-27 2002-12-20 Cabinet for the storage of goods requiring refrigeration Abandoned US20060107676A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU0201760A HUP0201760A2 (hu) 2002-05-27 2002-05-27 Állvány hűtendő termékek tárolására
PCT/HU2002/000160 WO2003099077A1 (en) 2002-05-27 2002-12-20 Cabinet for the storage of goods requiring refrigeration

Publications (1)

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US20060107676A1 true US20060107676A1 (en) 2006-05-25

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US10/522,304 Abandoned US20060107676A1 (en) 2002-05-27 2002-12-20 Cabinet for the storage of goods requiring refrigeration

Country Status (6)

Country Link
US (1) US20060107676A1 (enrdf_load_stackoverflow)
EP (1) EP1517627A1 (enrdf_load_stackoverflow)
AU (1) AU2002353253A1 (enrdf_load_stackoverflow)
CA (1) CA2493570A1 (enrdf_load_stackoverflow)
HU (1) HUP0201760A2 (enrdf_load_stackoverflow)
WO (1) WO2003099077A1 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9084496B1 (en) * 2014-05-09 2015-07-21 Heatcraft Refrigeration Products Llc Refrigerated display case
US20160106232A1 (en) * 2013-05-29 2016-04-21 Carrier Corporation Refrigerated sales furniture
US9532661B2 (en) 2011-06-30 2017-01-03 Pepsico, Inc. Modular refrigerated merchandise display system
CN112425966A (zh) * 2020-11-13 2021-03-02 深圳市新厨厨房设备有限公司 智能化冷藏食物弧型双通展示柜
US11326829B2 (en) * 2017-02-10 2022-05-10 Benoit Floquet Portable refrigerated cabinet

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0508204D0 (en) 2005-04-22 2005-06-01 Alan Nuttall Ltd Heated food storage and display cabinet
DE102008005736B4 (de) * 2008-01-23 2012-07-19 Girana Anuman-Rajadhon Regal für Ladenbau
WO2011138704A1 (en) * 2010-05-03 2011-11-10 Bim Birlesik Magazalar Anonim Sirketi A display cabinet
NZ611793A (en) 2011-06-30 2013-10-25 Hussmann Corp Apparatus for disease detection
GB2509207B (en) 2012-11-06 2014-11-05 Alan Nuttall Ltd Open fronted cabinet
GB201316911D0 (en) 2013-09-24 2013-11-06 Alan Nuttall Ltd Energy saving food storage unit
NL2011668C2 (en) * 2013-10-24 2015-04-29 Fri Jado Bv Modular merchandising display device.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915884A (en) * 1957-04-01 1959-12-08 Frank Dewey Company Inc Separable and readily portable refrigeration display cabinet
US4269037A (en) * 1979-07-03 1981-05-26 Masashi Karashima Refrigerated show case
US4898004A (en) * 1988-04-15 1990-02-06 Richardson James E In-store refrigerated display system
US4964281A (en) * 1988-10-06 1990-10-23 Sanyo Electric Co., Ltd. Low-temperature showcase
US5086627A (en) * 1990-11-19 1992-02-11 Margaret Platt Borgen Removable cooling unit for display case and method for using same
US5417079A (en) * 1992-07-01 1995-05-23 The Coca-Cola Company Modular refrigeration apparatus
US5502979A (en) * 1993-02-12 1996-04-02 Renard; Andre Collapsible refrigerated cabinets
US5860290A (en) * 1998-01-12 1999-01-19 Super S.E.E.R. Systems Inc. Refrigeration system with improved heat exchanger efficiency
US5996366A (en) * 1995-07-05 1999-12-07 Renard; Andre Refrigerated cabinet for displaying food or the like

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1545260A (fr) * 1966-11-23 1968-11-08 Clark Equipement Company Perfectionnements au circuit de refroidissement d'enceintes réfrigérées
FR2038670A5 (fr) * 1969-03-21 1971-01-08 Bonnet Ets Perfectionnements aux dispositifs refrigerants
DE3210423A1 (de) * 1982-03-22 1983-10-13 Linde Ag, 6200 Wiesbaden Kuehlregal

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915884A (en) * 1957-04-01 1959-12-08 Frank Dewey Company Inc Separable and readily portable refrigeration display cabinet
US4269037A (en) * 1979-07-03 1981-05-26 Masashi Karashima Refrigerated show case
US4898004A (en) * 1988-04-15 1990-02-06 Richardson James E In-store refrigerated display system
US4964281A (en) * 1988-10-06 1990-10-23 Sanyo Electric Co., Ltd. Low-temperature showcase
US5086627A (en) * 1990-11-19 1992-02-11 Margaret Platt Borgen Removable cooling unit for display case and method for using same
US5417079A (en) * 1992-07-01 1995-05-23 The Coca-Cola Company Modular refrigeration apparatus
US5502979A (en) * 1993-02-12 1996-04-02 Renard; Andre Collapsible refrigerated cabinets
US5996366A (en) * 1995-07-05 1999-12-07 Renard; Andre Refrigerated cabinet for displaying food or the like
US5860290A (en) * 1998-01-12 1999-01-19 Super S.E.E.R. Systems Inc. Refrigeration system with improved heat exchanger efficiency

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9532661B2 (en) 2011-06-30 2017-01-03 Pepsico, Inc. Modular refrigerated merchandise display system
US20160106232A1 (en) * 2013-05-29 2016-04-21 Carrier Corporation Refrigerated sales furniture
US10368660B2 (en) * 2013-05-29 2019-08-06 Carrier Corporation Refrigerated sales furniture
US9084496B1 (en) * 2014-05-09 2015-07-21 Heatcraft Refrigeration Products Llc Refrigerated display case
US11326829B2 (en) * 2017-02-10 2022-05-10 Benoit Floquet Portable refrigerated cabinet
CN112425966A (zh) * 2020-11-13 2021-03-02 深圳市新厨厨房设备有限公司 智能化冷藏食物弧型双通展示柜

Also Published As

Publication number Publication date
CA2493570A1 (en) 2003-12-14
EP1517627A1 (en) 2005-03-30
AU2002353253A1 (en) 2003-12-12
HUP0201760A2 (hu) 2003-12-29
WO2003099077A1 (en) 2003-12-04
HU0201760D0 (enrdf_load_stackoverflow) 2002-07-29

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