EP1399047B1 - Verfahren und vorrichtung zur klimatisierung einer vitrine - Google Patents

Verfahren und vorrichtung zur klimatisierung einer vitrine Download PDF

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Publication number
EP1399047B1
EP1399047B1 EP02764584A EP02764584A EP1399047B1 EP 1399047 B1 EP1399047 B1 EP 1399047B1 EP 02764584 A EP02764584 A EP 02764584A EP 02764584 A EP02764584 A EP 02764584A EP 1399047 B1 EP1399047 B1 EP 1399047B1
Authority
EP
European Patent Office
Prior art keywords
exchanger
air
interior
temperature
cooling device
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.)
Revoked
Application number
EP02764584A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1399047A1 (de
Inventor
Thomas Hahn
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.)
Glasbau Hahn GmbH
Original Assignee
Glasbau Hahn 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7687954&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1399047(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Glasbau Hahn GmbH filed Critical Glasbau Hahn GmbH
Publication of EP1399047A1 publication Critical patent/EP1399047A1/de
Application granted granted Critical
Publication of EP1399047B1 publication Critical patent/EP1399047B1/de
Anticipated expiration legal-status Critical
Revoked 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
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • A47F3/001—Devices for lighting, humidifying, heating, ventilation

Definitions

  • the invention relates to a method and an apparatus for carrying out the method for air conditioning a display case for display of objects with a more or less hermetically sealed from the outside world interior space, the objects find their place on a support surface and by, the interior completely or partially enclosing Glass panes of the side surfaces are visible from the outside.
  • the object of the invention is to provide a method and a device for carrying out the method for air conditioning the interior of a showcase, which requires little effort and has a low power consumption.
  • This object is achieved in that the air in the interior is passed through an exchanger and cooled in this way and the exchanger is closely connected in terms of temperature transition with a cooling device, wherein the exchanger is operated such that the difference between the higher temperature the air of the interior and the lower temperature of the exchanger is kept constantly at a value which is below the dew point of the air of the interior.
  • a showcase has an upper part 1, which rests on a base 2.
  • the upper part 1 consists for example of four side parts 3, of which at least three are formed as glass sheets.
  • the upper side part 16 may also consist of a glass pane, but it is also conceivable that instead of a glass pane, a box-shaped upper part is present, which covers the upper part 1 upwards and may contain a lighting device, not shown, or other facilities.
  • the glass panes may be simple panes of glass or (multiple) panes of insulating glass.
  • the interior 4 enclosed by the side parts 3 and 16 is also accessible from the outside in a known manner, this serves for the display of objects which rest on a support surface 5, which for example forms the bottom of the interior 3 enclosed by the side surfaces 3 and 16. There may also be other bearing surfaces, not shown, for setting up further objects within the interior 4.
  • the interior 4 is closed airtight or nearly airtight in the closed state by appropriate, not shown means of the environment of the showcase.
  • the air 6 in the interior 4 is sucked by a fan 9 and pressed by an exchanger 8, in which a cooling thereof takes place.
  • the cooled air 7 is then returned to the interior 4.
  • the exchanger 8 consists of a plate with a plurality of fins, where the air to be cooled is passed over, there are plate and fins of a good thermal conductivity metal, such as aluminum or copper.
  • the plate is in terms of heat transfer with a cooling device 10 in close communication.
  • the cooling device 10 acts it is a known cooling unit, ie, a compressor 11 and a cooling coil, in which there is a cooling liquid which expands when heated and emits cold again when compressed by the compressor.
  • This cooling coil may for example be in a tightly closed container which is completely filled with water or other suitable liquid and is in thermally close connection with the plate of the exchanger 8.
  • the water is in this case not only a transmission medium for the cold generated by the cooling device 10 to the exchanger 8, but it is also, so to speak, a cold storage, which also serves to save energy.
  • the cooling device 10 is formed in this case as a closed system, wherein a surge tank ensures that always a close contact between the water of the cooling device 10 and the exchanger 8 is ensured, regardless of the respective temperature of the water.
  • Another design of the cooling device 10 may consist of a solid metal block of aluminum or copper, wherein the cooling coil is guided one or more times through the metal block.
  • the metal block is in close thermal connection with the plate of the exchanger 8, wherein the metal block itself can still take over the function of the cold storage depending on the size. If a heating coil is provided in the exchanger 8, heating of the air is also possible. In this case, the compressor 11 must be controlled in accordance with the signals of the second temperature sensor 13 so that the air leaving the exchanger 8 7 corresponds to the desired value of the temperature.
  • a not shown first thermal switch is attached, which closes an electrical contact as soon as a predetermined temperature, for example 18 degrees is reached.
  • a not shown second thermal switch is attached, which closes an electrical contact as soon as the temperature has dropped to a predetermined value, for example, to 8 degrees.
  • the compressor 11 is switched off with the first thermal switch and the compressor 11 with the second thermal switch.
  • the difference between the higher temperature of the air in the interior 4 and the lower temperature of the exchanger 8 can be kept constantly at a value which is below the dew point of the air in the interior 4 of the showcase lies.
  • condensate can not be produced at the exchanger 8.
  • the outside of the exchanger 8 is suitably thermally insulated.
  • thermo switch 11 it is also conceivable, instead of the first thermal switch, to use a temperature sensor 12 and, instead of the second thermal switch, a temperature sensor 13, which in each case convert temperature values into electrical values and forward them to an electronic control device 14 which is in turn connected to the compressor 11.
  • the control device 14 evaluates the respective temperature values and causes in the manner already described, the control of the compressor 11.
  • the fan 9 constantly performs the air circulation through the exchanger 8 with a constant power. It is also possible to influence the drive motor of the fan 9 by the control device 14 in such a way that the air circulation quantity is changed according to predetermined values as a function of the respective temperature values, as is already the case with respect to the compressor 11.
  • the control device 14 is to be programmed according to the functions already described, in that the control of the compressor 11 and the fan 9 takes place as a function of the temperature values of the respective sensors 12, 13 and 15.
  • dew point sensors can also be mounted in the showcase, which are likewise connected to the control device 14 and whose signals supplement or expand the function of the control device 14.
  • the control device 14 may also be provided in duplicate, wherein a control device is constantly active and the second control device is effective only in case of failure of the first control device.
  • the described devices such as exchanger 8 with fan 9 and cooling device 10 with compressor 11 may be formed as a compact replaceable unit and preferably below the bottom forming bearing surface 5, so housed in the base 2 of the showcase.
  • the support surface 5 is not quite up to two zoom in opposite side surfaces 3, wherein sucked by the resulting slot one air 6 from the interior 4 of the fan 9 and after passing through the exchanger 8, the air 7 passes through the second slot back into the interior 4, if the air movement is not due to special Openings done.
  • the invention is not limited only to this known type of generation of cold but the necessary cold can be produced in other ways, for example by the use of Peltier elements.
  • the structure of the exchanger 8 may change, if it is not mounted together with the Peltier elements below the support surface 5 but on one of the side surfaces 3.
  • the controller 14 to design such that the height of the Peltier elements supplied voltage in response to the signals of the temperature sensors automatically is regulated.
  • the surface temperature of the exchanger 8 can be controlled very precisely, which also allows the temperature of the air in the interior 4 can be set exactly under the lowest temperature fluctuations.
  • the exchanger 8 can also be designed in such a way that the amount of air supplied to it or the amount of air discharged therefrom can be regulated. This control function can also be taken over by the control device 14 if the corresponding air quantity control device is connected to the control device 14 and receives its control signals in the described manner as a function of the signals from the sensors from the control device 14.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
EP02764584A 2001-06-13 2002-06-12 Verfahren und vorrichtung zur klimatisierung einer vitrine Revoked EP1399047B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2001128348 DE10128348B4 (de) 2001-06-13 2001-06-13 Verfahren zur Klimatisierung einer Vitrine und Vorrichtung zur Durchführung des Verfahrens
DE10128348 2001-06-13
PCT/EP2002/006426 WO2002100218A1 (de) 2001-06-13 2002-06-12 Verfahren und vorrichtung zur klimatisierung einer vitrine

Publications (2)

Publication Number Publication Date
EP1399047A1 EP1399047A1 (de) 2004-03-24
EP1399047B1 true EP1399047B1 (de) 2007-01-17

Family

ID=7687954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02764584A Revoked EP1399047B1 (de) 2001-06-13 2002-06-12 Verfahren und vorrichtung zur klimatisierung einer vitrine

Country Status (7)

Country Link
EP (1) EP1399047B1 (enExample)
JP (2) JP2004528142A (enExample)
AU (1) AU2002328811B2 (enExample)
DE (2) DE10128348B4 (enExample)
DK (1) DK1399047T3 (enExample)
ES (1) ES2278953T3 (enExample)
WO (1) WO2002100218A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004027750A1 (de) 2004-06-07 2006-01-05 Glasbau Hahn Gmbh + Co. Kg Vitrine zur Aufbewahrung und/oder Zurschaustellung von Gegenständen
DE102007042240B3 (de) * 2007-09-06 2009-02-05 Caverion Gmbh Verfahren und Vorrichtung zur Klimatisierung einer Vitrine
DE102015015084B3 (de) * 2015-11-18 2017-03-09 Johannes Georg Mehlig Haushalts-Kühlschrank bzw. -Gefrierschrank

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB594544A (en) * 1944-12-08 1947-11-13 John Mathieson Mccreadie An improved cabinet or show case for biscuits liable to deterioration by the absorption of moisture
DE3641354A1 (de) * 1986-12-03 1988-06-16 Horst Muhlack Ausstellungsvitrine
JPS63307509A (ja) * 1987-06-09 1988-12-15 Nippon Mining Co Ltd 結露或いは結霜防止方法及び装置
DE3805212A1 (de) * 1988-02-19 1989-08-31 Hahn Glasbau Vitrine zur aufbewahrung und/oder zur zurschaustellung von gegenstaenden
GB2280971A (en) * 1993-08-09 1995-02-15 Imi Cornelius Drink dispenser refrigeration system
JP3302500B2 (ja) * 1994-04-05 2002-07-15 富士電機株式会社 冷蔵ショーケースの制御装置
JP2957923B2 (ja) * 1995-06-14 1999-10-06 日本テクノ株式会社 ショーケースの冷却方法および冷却装置
US5842597A (en) * 1996-12-10 1998-12-01 Cigar Vending Corp. Environmentally controlled vending machine for humidity sensitive products
DE19826930C2 (de) * 1998-05-25 2002-09-05 Juerg Steiner Klimatisierte Ausstellungsvitrine und System aus derartigen Vitrinen
JP2000253970A (ja) * 1999-03-11 2000-09-19 Sanden Corp ショーケース

Also Published As

Publication number Publication date
JP2009162479A (ja) 2009-07-23
JP2004528142A (ja) 2004-09-16
EP1399047A1 (de) 2004-03-24
DE50209294D1 (de) 2007-03-08
DK1399047T3 (da) 2007-05-21
WO2002100218A1 (de) 2002-12-19
DE10128348A1 (de) 2003-01-02
AU2002328811B2 (en) 2008-01-10
DE10128348B4 (de) 2006-12-07
ES2278953T3 (es) 2007-08-16

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