EP1035390A1 - Kühlgerät mit Anzeigemitteln der Lagerdauer der aufbewahrten Lebensmittelgegenstände - Google Patents

Kühlgerät mit Anzeigemitteln der Lagerdauer der aufbewahrten Lebensmittelgegenstände Download PDF

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Publication number
EP1035390A1
EP1035390A1 EP00100050A EP00100050A EP1035390A1 EP 1035390 A1 EP1035390 A1 EP 1035390A1 EP 00100050 A EP00100050 A EP 00100050A EP 00100050 A EP00100050 A EP 00100050A EP 1035390 A1 EP1035390 A1 EP 1035390A1
Authority
EP
European Patent Office
Prior art keywords
control means
items
refrigeration appliance
compartment
operational parameters
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
EP00100050A
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English (en)
French (fr)
Other versions
EP1035390B1 (de
Inventor
Claudio Diodato
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.)
Electrolux Home Products Italy SpA
Original Assignee
Zeltron SpA
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
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Application filed by Zeltron SpA filed Critical Zeltron SpA
Publication of EP1035390A1 publication Critical patent/EP1035390A1/de
Application granted granted Critical
Publication of EP1035390B1 publication Critical patent/EP1035390B1/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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/07—Remote controls
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/02—Humidity
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • 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
    • F25D2400/36—Visual displays
    • F25D2400/361—Interactive visual displays
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Definitions

  • the present invention refers to a refrigeration appliance, in particular a deep freezer, provided with means adapted to indicate the storage life, ie. the useful preservability period, of various items that may be stored therein.
  • EP-A-0 189 207 discloses a deep freezer that is provided with selector means adapted to drive a microprocessor with parameters corresponding to the nature or kind of associated items stored therein. Control means detect the time taken to bring the stored items down to their frozen state and drive the microprocessor with a corresponding second parameter. In response to the combination of said parameters, the microprocessor is then able to drive a display unit with a signal that is representative of the storage life, ie. preservability of the frozen items.
  • Such a solution enables the user to be automatically informed on the theoretical expiry date of the items stored in the freezer on the basis of the main parameters that actually determine the same expiry with a related decay in the organoleptic, bromatologic, bacteriologic and similar characteristics thereof.
  • variations in temperature and/or humidity may be brought about at any moment by any of a number of different events and occurrences, such as for instance a temporary malfunction in the operation of the refrigeration appliance, repeated and/or extended openings of the door thereof, an altered frequency of automatic defrost cycles and the like.
  • refrigeration appliances In order to limit the risks incurred by the user, refrigeration appliances have been proposed which are adapted to detect and indicate any possible excessive and extended, albeit temporary, temperature rise in the compartment in which the items are stored. The indication of the so detected irregular condition persists until the associated control means are reset.
  • Such a solution provides a kind of indication that is certainly sure and reliable, but unavoidably generic, so that the user is not in a position to either evaluate the actual extent or nature of the decay suffered by the stored items or, for the matter, discriminate between the items that have actually suffered a deterioration and the ones that can on the contrary be still used to some extent.
  • a possible variation in storage temperature and/or humidity generally affects the different stored items (eg. meat and vegetables) to a varying extent; furthermore, it can take place as an event of limited intensity and/or duration, such as to somehow alter the preservability of the items, without however fully spoiling it.
  • a refrigeration appliance of the above cited kind which is capable of providing an accurate, sure and reliable indication of the storage life, ie. preservability of the therein stored items, in view of enabling the same items to be possibly used selectively in an appropriate manner.
  • the refrigeration appliance can be noticed to be for instance constituted by a deep freezer 3, although it will be appreciated that it may also be constituted by a refrigerator, or even a refrigerator/freezer combination, provided with an access door 7.
  • the appliance 3 is preferably of the type comprising a (generally known and not shown) refrigerating circuit of the compressor type, adapted to keep at least a compartment 4 intended for the storage of items, such as for instance foodstuffs, at a pre-determined average temperature, eg. -18°C.
  • the refrigerating circuit is operated automatically, in a traditional manner, by a control device 5, preferably of a per sè known electronic type, which is driven by a plurality of sensors which are indicated generally at 6 in Figure 2 and are adapted to detect, in said storage compartment 4, respective operational parameters or quantities, such as the temperature and/or the humidity of the air, the temperature of the evaporator of the refrigerating circuit, the opening of the door 7, and the like.
  • the control device 5 communicates via a connection 8 with a control unit 9 which may for instance comprise a Motorola 68HC05B16 or similar microprocessor.
  • control unit 9 is associated to a non-volatile mass-storage memory 10, such as for instance a magnetic disc or a solid-state memory of the flash or Eeprom type.
  • the unit 9 is adapted to drive at least a display device 11, preferably of the graphic type, and to be driven with coded signals from a data input device 12, such as a keyboard or the like.
  • the user can drive the unit 9, via said keyboard or similar means 12, with data that are indicative of the chemical-physical characteristics of the same items, such as for instance the nature (ie. meat, vegetables, etc.) and the quantity (weight and/or volume) thereof.
  • the data so fed into the unit 9 are stored in the associated memory 10 and possibly made visible on the display 11.
  • the unit 9 is further driven by the control device 5 with the operational parameters detected by the sensors 6.
  • the microprocessor 9 is so set as to be able to combine the data stored in the memory 10 with the operational parameters entered by the control device 5, such as the temperature and the humidity in the storage compartment 4, the time taken by the refrigeration appliance to bring the items placed in the same compartment down to a frozen state, the number and/or the duration of the openings of the door 7, and the like.
  • the unit 9 drives the display 11 in such a manner as to indicate the respective expiry date that is expected as a result of the afore mentioned combination of characteristic data and operational parameters.
  • the microprocessor 9 is adapted to carry out the afore cited combination of characteristic data and operational parameters repeatedly throughout the operation of the appliance, ie. preferably periodically, eg. every second, so as to be able to correspondingly update the expiry date expected for each stored item and indicated on the display 11.
  • the refrigeration appliance according to the present invention enables the correct expiry date, as calculated repeatedly throughout the operation time of the same appliance by taking each time into account all possible significant variations in the operational parameters and, therefore, in the actual storage conditions, to be indicated on the display 11 for each item stored in the compartment 4.
  • This again advantageously enables the user to be reliably informed at any moment on the actual expiry date of all items stored in said compartment 4.
  • the unit 9 may be adapted to also drive appropriate alarm indicators adapted to signal the impending (or already occurred) expiry of one or more items.
  • the unit 9 and the control device 5 may be implemented in a mutually integrated form, and the keyboard 12 will preferably comprise a key for cancelling the data concerning items that are removed from the compartment 4.
  • connection 8 between the control device 5 and the unit 9 may be implemented in the form of a cable, radio-frequency, infrared or similar connection channel, thereby enabling the unit 9 and the associated devices 10-12 to be installed remotely.
EP00100050A 1999-03-05 2000-01-05 Kühlgerät mit Anzeigemitteln der Lagerdauer der aufbewahrten Lebensmittelgegenstände Revoked EP1035390B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN990028 1999-03-05
IT1999PN000028A IT1311210B1 (it) 1999-03-05 1999-03-05 Apparecchio refrigerante con indicatore della durata diconservazione degli articoli

Publications (2)

Publication Number Publication Date
EP1035390A1 true EP1035390A1 (de) 2000-09-13
EP1035390B1 EP1035390B1 (de) 2004-04-21

Family

ID=11395501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100050A Revoked EP1035390B1 (de) 1999-03-05 2000-01-05 Kühlgerät mit Anzeigemitteln der Lagerdauer der aufbewahrten Lebensmittelgegenstände

Country Status (6)

Country Link
EP (1) EP1035390B1 (de)
AT (1) ATE265031T1 (de)
DE (1) DE60009978T2 (de)
DK (1) DK1035390T3 (de)
ES (1) ES2219203T3 (de)
IT (1) IT1311210B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1215470A2 (de) * 2000-12-15 2002-06-19 BSH Bosch und Siemens Hausgeräte GmbH Gehäuse mit getrennter Mess- und Anzeigevorrichtung
WO2003087955A1 (en) * 2002-04-18 2003-10-23 Remigiusz Swierczek Food product freshness indicator and packaging, specifically for food products
WO2004005817A1 (de) * 2002-07-06 2004-01-15 BSH Bosch und Siemens Hausgeräte GmbH Kühl- oder gefriergerät

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189207A2 (de) * 1985-01-24 1986-07-30 INDUSTRIE ZANUSSI S.p.A. Kühltruhe mit Mittel zur Anzeige der Dauer der Haltbarkeit von Konsumartikeln
DE3936543A1 (de) * 1989-11-02 1991-05-08 Badische Tabakmanufaktur Elektrischer verfallsindikator
DE9213106U1 (de) * 1992-09-29 1993-04-08 Liebherr-Werk Lienz Ges.M.B.H., Lienz, At
EP0697638A1 (de) * 1994-07-29 1996-02-21 Bull S.A. Verfahren zur Aufspürung von vollständigen Sequenzen und Misserfolgsequenzen in einem Fallerkennungssystem
US5619734A (en) * 1993-04-01 1997-04-08 Mitsubishi Denki Kabushiki Kaisha Programmable controller and method of operation thereof
DE29611091U1 (de) * 1996-06-25 1997-10-23 Aeg Hausgeraete Gmbh Flüssigkeitsführendes Hausgerät mit einer Programmsteuerung
EP0851348A1 (de) * 1996-11-22 1998-07-01 Hans Beckhoff Verfahren und Vorrichtung zum Implementieren eines echtzeitfähigen Steuerprogramms in einem nicht-echtzeitfähigen Betriebsprogramm
DE29812877U1 (de) * 1998-07-20 1998-10-01 Liebherr Hausgeraete Kühlgerät mit automatischer Warenerfassung
EP0874225A2 (de) * 1997-04-23 1998-10-28 Siemens Aktiengesellschaft Verfahren und System zur Archivierung von Prozesssignalen einer technischen Anlage

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189207A2 (de) * 1985-01-24 1986-07-30 INDUSTRIE ZANUSSI S.p.A. Kühltruhe mit Mittel zur Anzeige der Dauer der Haltbarkeit von Konsumartikeln
DE3936543A1 (de) * 1989-11-02 1991-05-08 Badische Tabakmanufaktur Elektrischer verfallsindikator
DE9213106U1 (de) * 1992-09-29 1993-04-08 Liebherr-Werk Lienz Ges.M.B.H., Lienz, At
US5619734A (en) * 1993-04-01 1997-04-08 Mitsubishi Denki Kabushiki Kaisha Programmable controller and method of operation thereof
EP0697638A1 (de) * 1994-07-29 1996-02-21 Bull S.A. Verfahren zur Aufspürung von vollständigen Sequenzen und Misserfolgsequenzen in einem Fallerkennungssystem
DE29611091U1 (de) * 1996-06-25 1997-10-23 Aeg Hausgeraete Gmbh Flüssigkeitsführendes Hausgerät mit einer Programmsteuerung
EP0851348A1 (de) * 1996-11-22 1998-07-01 Hans Beckhoff Verfahren und Vorrichtung zum Implementieren eines echtzeitfähigen Steuerprogramms in einem nicht-echtzeitfähigen Betriebsprogramm
EP0874225A2 (de) * 1997-04-23 1998-10-28 Siemens Aktiengesellschaft Verfahren und System zur Archivierung von Prozesssignalen einer technischen Anlage
DE29812877U1 (de) * 1998-07-20 1998-10-01 Liebherr Hausgeraete Kühlgerät mit automatischer Warenerfassung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1215470A2 (de) * 2000-12-15 2002-06-19 BSH Bosch und Siemens Hausgeräte GmbH Gehäuse mit getrennter Mess- und Anzeigevorrichtung
EP1215470A3 (de) * 2000-12-15 2004-01-07 BSH Bosch und Siemens Hausgeräte GmbH Gehäuse mit getrennter Mess- und Anzeigevorrichtung
WO2003087955A1 (en) * 2002-04-18 2003-10-23 Remigiusz Swierczek Food product freshness indicator and packaging, specifically for food products
WO2004005817A1 (de) * 2002-07-06 2004-01-15 BSH Bosch und Siemens Hausgeräte GmbH Kühl- oder gefriergerät
JP2005532524A (ja) * 2002-07-06 2005-10-27 ベーエスハー ボッシュ ウント ジーメンス ハウスゲレーテ ゲゼルシャフト ミット ベシュレンクテル ハフツング 冷蔵装置または冷凍装置
CN100350202C (zh) * 2002-07-06 2007-11-21 Bsh博施及西门子家用器具有限公司 冷却或冷冻设备

Also Published As

Publication number Publication date
ITPN990028A0 (it) 1999-03-05
EP1035390B1 (de) 2004-04-21
IT1311210B1 (it) 2002-03-04
ES2219203T3 (es) 2004-12-01
ATE265031T1 (de) 2004-05-15
DK1035390T3 (da) 2004-05-10
DE60009978D1 (de) 2004-05-27
DE60009978T2 (de) 2004-10-21
ITPN990028A1 (it) 2000-09-05

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