EP2354730A2 - Kühleinheit - Google Patents

Kühleinheit Download PDF

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Publication number
EP2354730A2
EP2354730A2 EP11000411A EP11000411A EP2354730A2 EP 2354730 A2 EP2354730 A2 EP 2354730A2 EP 11000411 A EP11000411 A EP 11000411A EP 11000411 A EP11000411 A EP 11000411A EP 2354730 A2 EP2354730 A2 EP 2354730A2
Authority
EP
European Patent Office
Prior art keywords
compressor
axial fan
evaporator
cooling unit
condenser
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Withdrawn
Application number
EP11000411A
Other languages
English (en)
French (fr)
Other versions
EP2354730A3 (de
Inventor
Claudio Fossati
Marco Gallinotti
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.)
Mondial Group Srl
Original Assignee
Mondial Group Srl
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
Application filed by Mondial Group Srl filed Critical Mondial Group Srl
Publication of EP2354730A2 publication Critical patent/EP2354730A2/de
Publication of EP2354730A3 publication Critical patent/EP2354730A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F25D19/02—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors plug-in type

Definitions

  • the present invention refers to an improved cooling unit.
  • the prior art provides cooling units comprising all components of a refrigerating machine, such units being adapted to be coupled with one or more refrigerating cells made separately.
  • cooling units are real stand-alone and functionally independent modules: in such a way, a manufacturer of a refrigerating cell can be limited to make such cell, by choosing and finding afterwards the most suitable cooling unit for the cell itself: therefore, it is then only enough to operatively couple the cell with the cooling unit deemed adequate, consequently limiting design costs and complexitiy, allowing the manufacturers of cells and/or refrigerated exhibitors to demand to third parties the technical competencies necessary for making the actual refrigerating machine.
  • Known cooling units are therefore usually composed of an external containing casing, inside which the various necessary components are placed in a functionally cooperating way, such as a compressor, an evaporator, a condenser, the various fans for circulating air flows and the ducts for transporting the refrigerating fluids, in addition to the common components necessary for electric supply, control, etc.
  • a functionally cooperating way such as a compressor, an evaporator, a condenser, the various fans for circulating air flows and the ducts for transporting the refrigerating fluids, in addition to the common components necessary for electric supply, control, etc.
  • Such external container is then equipped with one or more grids adapted to allow the passage of the various air flows, such as the flow towards the condenser and the compressor, and the recirculation of the air flow cooled by the evaporator to the refrigerating cell to which the unit is coupled and vice versa.
  • the external container sizes are determined both by the sizes of the individual components and by the lay-out according to which such components are arranged inside the container itself.
  • the sizes of the individual components are determined by the refrigerating power with which the related cooling unit must be equipped. It is therefore clear that, technically, while it would be adequate, for manufacturers of refrigerating cells, to have refrigerating units available with more and more reduced external sizes, in such a way as to make it easy to place them into the working internal volume, such sizes are constrained by the required refrigerating power and by the sizes of the components necessary to obtain such power.
  • Object of the present invention is solving the above prior art problems, by providing an improved cooling unit that allows a relevant decrease of the external sizes of its own container, though strongly limiting the decrease of offered refrigerating power.
  • Another object of the present invention is providing an improved cooling unit that allows a relevant decrease of the external sizes of its own container optimising the lay-out of internal components.
  • an object of the present invention is providing an improved cooling unit that allows a relevant decrease of the external sizes of its own container using an internal deflecting element that allows conveying and optimising the air flows towards the evaporator.
  • the improved cooling unit 1 is composed of a supporting and containing structure comprising at least one base 3 on which the following are arranged, suitably cooperating and mutually communicating as taught by the prior art: at least one compressor 5 of a refrigerating fluid communicating on its front part with at least one condenser 7, preferably of the type with micro-channels to obtain a relevant weight saving with respect to prior art cooling units, and on its upper part with at least one evaporator 9.
  • at least one first axial fan 11 is arranged, adapted to take air flows from such condenser 7 and to eject such flows towards such compressor 5.
  • the supporting and containing structure comprises at least one shelf 13 for supporting the evaporator 9, arranged in a substantially horizontal position above the compressor 5, such shelf 13 being joined at one edge thereof to at least one deflecting profile 15, suitably slanted, adapted to convey air flows F c coming from at least one second axial fan 17 towards the evaporator 9.
  • the adoption of the deflecting profile 15, slanted and joined to the shelf 13, allows arranging in a slanted position, in agreement with the slanting of the profile 13 itself, such second axial fan 17, consequently allowing a strong reduction of the global sizes of the unit 1 according to the present invention, in the below-specified measure.
  • the supporting and containing structure is equipped with suitable size coatings, both to make the cooling unit 1 an independent and stand-alone module, and to protect the components arranged therein. Therefore, with particular reference to Figures 3, 4 and 5 , it is possible to note that such side coatings comprise:
  • the second axial fan 17 is adapted to guarantee the re-circulation of cooled air inside such cell, taking the air flows F c coming from inside this latter one through the first slit 35 and forcing such flows to pass through the evaporator 9 that takes care of cooling them, in order to be afterwards inserted again upwards as cooled air flows F R inside the refrigerating cell: during the path of the air flows F c , the deflecting profile 15, with the help of the shelf 13, takes care of correctly orienting the flows F c coming from the second axial fan 17 towards the evaporator 9, though such second axial fan 17 is arranged in a slanted position and, consequently, not optimally oriented towards the evaporator 9.
  • the Applicant has therefore discovered that, using a compressor with R404A refrigerating gas and a displacement of 7.28 cm 3 at 936 Kcal under ASHRAE conditions (reference working conditions), the adoption of the deflecting profile 15 advantageously allows obtaining a cooling unit 1 according to the present invention having a global volume lower by 64% to 67% than the volume of comparable cooling units belonging to the prior art, with a reduction of the yielded refrigerating power included between 35% and 37% only, such loss having to be ascribed only to the compromise choice related to the compressor, made in such a way as to optimise the relationship between sizes and provided performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)
  • Secondary Cells (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP11000411A 2010-01-28 2011-01-20 Kühleinheit Withdrawn EP2354730A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO2010A000056A IT1399811B1 (it) 2010-01-28 2010-01-28 Unità di raffreddamento perfezionata.

Publications (2)

Publication Number Publication Date
EP2354730A2 true EP2354730A2 (de) 2011-08-10
EP2354730A3 EP2354730A3 (de) 2011-10-26

Family

ID=42938409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11000411A Withdrawn EP2354730A3 (de) 2010-01-28 2011-01-20 Kühleinheit

Country Status (2)

Country Link
EP (1) EP2354730A3 (de)
IT (1) IT1399811B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103632443A (zh) * 2012-08-29 2014-03-12 鸿富锦精密工业(武汉)有限公司 自动售货机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005016871U1 (de) 2005-04-20 2006-06-14 Götz Gastroküchen GmbH Kühlhochschrank mit Kälteschleier

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2241023A (en) * 1938-07-15 1941-05-06 Westinghouse Electric & Mfg Co Dry bottle cooler
US2245234A (en) * 1938-10-19 1941-06-10 Westinghouse Electric & Mfg Co Cooler for bottled beverages
JPS515088Y2 (de) * 1971-11-05 1976-02-12
JPH0431663Y2 (de) * 1985-01-30 1992-07-29
US4882910A (en) * 1989-02-08 1989-11-28 Meehan Kermit E Refrigeration system for product display enclosures
JPH08110144A (ja) * 1994-10-11 1996-04-30 Fuji Electric Co Ltd 冷凍機内蔵形ショーケースの空冷コンデンシングユニット
IT1306633B1 (it) * 1999-02-19 2001-10-02 Costan Spa Banco espositore refrigerato.
JP2002345607A (ja) * 2001-05-29 2002-12-03 Sanyo Electric Co Ltd オープンショーケース
US7000415B2 (en) * 2004-04-29 2006-02-21 Carrier Commercial Refrigeration, Inc. Foul-resistant condenser using microchannel tubing
JP4761818B2 (ja) * 2005-04-25 2011-08-31 ザ・コカ−コーラ・カンパニー 低温ショーケース

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005016871U1 (de) 2005-04-20 2006-06-14 Götz Gastroküchen GmbH Kühlhochschrank mit Kälteschleier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103632443A (zh) * 2012-08-29 2014-03-12 鸿富锦精密工业(武汉)有限公司 自动售货机

Also Published As

Publication number Publication date
EP2354730A3 (de) 2011-10-26
IT1399811B1 (it) 2013-05-03
ITTO20100056A1 (it) 2010-04-29

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