WO2006095217A1 - Appareil menager comprenant un dispositif d'eclairage et procede pour commander la mise en marche de ce dernier - Google Patents

Appareil menager comprenant un dispositif d'eclairage et procede pour commander la mise en marche de ce dernier Download PDF

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Publication number
WO2006095217A1
WO2006095217A1 PCT/IB2005/003275 IB2005003275W WO2006095217A1 WO 2006095217 A1 WO2006095217 A1 WO 2006095217A1 IB 2005003275 W IB2005003275 W IB 2005003275W WO 2006095217 A1 WO2006095217 A1 WO 2006095217A1
Authority
WO
WIPO (PCT)
Prior art keywords
lighting device
household appliance
supply voltage
value
filament
Prior art date
Application number
PCT/IB2005/003275
Other languages
English (en)
Inventor
Valerio Aisa
Paolo Santonicola
Brunetta Vinerba
Valeria Animobono
Original Assignee
Indesit Company S.P.A.
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 Indesit Company S.P.A. filed Critical Indesit Company S.P.A.
Priority to EA200701513A priority Critical patent/EA010991B1/ru
Priority to CN2005800474257A priority patent/CN101124854B/zh
Priority to EP05798680.4A priority patent/EP1856951B1/fr
Publication of WO2006095217A1 publication Critical patent/WO2006095217A1/fr

Links

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
    • F25D27/00—Lighting arrangements
    • F25D27/005—Lighting arrangements combined with control means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/02—Switching on, e.g. with predetermined rate of increase of lighting current

Definitions

  • the present invention relates to a household appliance according to the preamble of claim 1 and to a method for controlling the activation of a lighting device according to the preamble of claim 10.
  • the structure of many household appliances includes at least one inner compartment in which one can place what one wants the household appliance to perform its function on.
  • Such an inner compartment may for example be the cell of a refrigerator or a freezer or a refrigerator-freezer, wherein a user places foodstuffs to be cooled or frozen, or the muffle of an oven, wherein a user places foods to be cooked.
  • refrigerator-freezer designates a household appliance fitted with at least two cells having different temperatures, thereby allowing for at least two different preservation states for the foodstuffs kept inside the household appliance.
  • Said lighting system usually comprises, for each compartment to be illuminated, an incandescent lamp comprising a metal filament (typically a filament made of tungsten or a metal alloy including tungsten among its components).
  • a metal filament typically a filament made of tungsten or a metal alloy including tungsten among its components.
  • the current flowing through said metal filament causes the filament to become incandescent, thereby producing the diffusion of visible light in the inner compartment of the household appliance.
  • the control device of Fig. 2 may be connected to a triggering device for switching on the lighting device, e.g. the device 6 shown in Fig. 1.
  • the triggering device for switching on the lighting device may be provided in many different ways and may be either manual or automatic. If the household appliance is a refrigerator or a freezer or a refrigerator-freezer, the triggering device could be the push-button normally used for activating the lamp when the door is opened, whereas if the household appliance is a cooking oven, the triggering device could be the knob or push-button located in the appliance control panel, through which the user can activate or deactivate the lamp.
  • the duration of the transient is approximately 80 ⁇ 100 ms. It has been found that it is exactly the above-mentioned transient of power absorption (which remains higher than the rated value from the peak value to the achievement of the steady state) which subjects the metal filament of incandescent lamps to thermal stress, thereby causing a reduction of the lamp life, if the lamp is operated according to the method known in the art.
  • the fact that said reduction of the life of the lamp is greater as the on/off operation frequency of the lamp increases is perfectly in accordance with such a discovery. Indeed, the higher the on/off operation frequency of the lamp, the higher the number of transients generated and the higher the number of power absorption peaks suffered by the lamp.
  • the method being the subject of the present invention aimed at extending the life of an incandescent lamp, is based on lessening of the above-mentioned power absorption peak occurring during the initial transient following the activation of the lamp. Even better results are obtained if the absorption peak is completely eliminated, rather than only attenuated: in this case, in fact, the life of an incandescent lamp will tend to match the average life of the same lamp under uninterrupted operation.
  • the method according to the present invention finds a typical application in lighting devices for household appliances, and is particularly advantageous in refrigerators and refrigerator-freezers, wherein the lamp is usually switched on and off (number of times the refrigerator door is opened and closed) several dozens of times a day and the lamp on time is typically less than one minute.
  • the graduality with which the lighting device, in particular the incandescent lamp, starting from the activation at voltage V o> reaches the steady state (corresponding to the voltage V * ) depends on the number N of transitions Pj-P 2 -...-P, -...-P N illustrated in Fig. 3. The higher said number N, the more gradual and progressive the activation of the lighting device, in particular an incandescent lamp.
  • the present invention focuses on the behaviour of the lighting device, in particular a filament-type incandescent lamp, when it is switched on and/or off.
  • the control device is adapted to apply a variable supply voltage to the lighting device only when the lighting device is switched on and/or off.
  • the household appliance according to the present invention has the advantage of ensuring, by means of the method described above and substantially defined in the annexed claims, an average life of its lighting device, in particular an incandescent lamp comprising a metal filament, being comparable to the average life of the other components of the household appliance. Furthermore, it also offers the advantage of being much more suited to usages requiring frequent on/off switchings of its lighting device, compared to the household appliances according to the prior art.
  • the lighting device through an appropriate modulation of the luminous flux emitted, communicates to the user information concerning the operating state of the household appliance wherein the device is installed.
  • Such a communication can take place through different flashing frequencies or different sequences consisting of flashes and pauses repeated regularly.

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)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un appareil ménager (1) comprenant au moins un compartiment interne (2A), au moins un dispositif d'éclairage (3) destiné à éclairer le compartiment interne (2A) et un dispositif de commande (5) destiné à commander le dispositif d'éclairage (3). Selon l'invention, le dispositif d'éclairage (5) est conçu pour appliquer une tension d'alimentation, qui varie dans le temps, au dispositif d'éclairage (3), de manière à prolonger la durée de vie du dispositif d'éclairage (3).
PCT/IB2005/003275 2005-03-09 2005-11-03 Appareil menager comprenant un dispositif d'eclairage et procede pour commander la mise en marche de ce dernier WO2006095217A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EA200701513A EA010991B1 (ru) 2005-03-09 2005-11-03 Бытовой прибор с осветительным устройством и способ управления его включением
CN2005800474257A CN101124854B (zh) 2005-03-09 2005-11-03 包括照明装置的家用设备和用于控制照明装置激励的方法
EP05798680.4A EP1856951B1 (fr) 2005-03-09 2005-11-03 Appareil menager comprenant un dispositif d'eclairage et procede pour commander la mise en marche de ce dernier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO20050148 ITTO20050148A1 (it) 2005-03-09 2005-03-09 Elettrodomestico comprendente un dispositivo di illuminazione e metodo di controllo della sua accensione
ITTO2005A000148 2005-03-09

Publications (1)

Publication Number Publication Date
WO2006095217A1 true WO2006095217A1 (fr) 2006-09-14

Family

ID=35613886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/003275 WO2006095217A1 (fr) 2005-03-09 2005-11-03 Appareil menager comprenant un dispositif d'eclairage et procede pour commander la mise en marche de ce dernier

Country Status (5)

Country Link
EP (2) EP1856951B1 (fr)
CN (1) CN101124854B (fr)
EA (1) EA010991B1 (fr)
IT (1) ITTO20050148A1 (fr)
WO (1) WO2006095217A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010045697A1 (fr) * 2008-10-20 2010-04-29 Whirlpool S.A. Système et procédé d’éclairage intelligent
WO2012032460A1 (fr) 2010-09-10 2012-03-15 Indesit Company S.P.A. Appareil électroménager multifonctions
EP3023718A1 (fr) 2006-10-24 2016-05-25 Indesit Company S.p.A. Appareil de réfrigération
JP2018087691A (ja) * 2018-02-28 2018-06-07 三菱電機株式会社 冷蔵庫

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710065A (en) * 1971-12-06 1973-01-09 Litton Systems Inc Magnetron power supply having in-rush current limiter
US3898516A (en) * 1973-05-29 1975-08-05 Henry H Nakasone Lighting control system for incandescent lamps
US4152607A (en) * 1977-02-14 1979-05-01 Nakasone Henry H Soft switch with rapid recovery circuit
EP0068618A2 (fr) 1981-05-18 1983-01-05 Westinghouse Electric Corporation Procédé pour immobiliser les ions d'un oxyde de metal actinide
US5030890A (en) * 1988-05-25 1991-07-09 Johnson Samuel A Two terminal incandescent lamp controller
EP0588273A1 (fr) * 1992-09-17 1994-03-23 ABBPATENT GmbH Procédé pour varier l'intensité lumineuse et dimmer pour mettre en oeuvre ce procédé
JPH07183083A (ja) * 1993-12-24 1995-07-21 Sharp Corp 調理機器用ランプ制御回路
DE29722905U1 (de) * 1997-12-29 1998-02-19 Wittmann, Gerhard, 81247 München Lampen-Steuerschaltung
WO2002021664A1 (fr) 2000-09-05 2002-03-14 Wrap S.P.A. Procede, systeme et dispositifs permettant la transmission de donnees dans un reseau electrique
EP1249922A1 (fr) * 2001-04-11 2002-10-16 Quadlux, Inc. Procédé et appareil de régulation du papillotement de tension
EP1465320A2 (fr) 2003-04-01 2004-10-06 WRAP S.p.A. Procédé et système pour le contrôle automatique d'appareils eléctriques, en particulier d'appareils électroménagers, et dispositif adapté pour ce procédé.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1266851B1 (it) 1994-06-08 1997-01-21 Merloni Elettrodomestici Spa Metodo per il controllo di un apparato frigorifero, ed apparato implementante tale metodo.

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710065A (en) * 1971-12-06 1973-01-09 Litton Systems Inc Magnetron power supply having in-rush current limiter
US3898516A (en) * 1973-05-29 1975-08-05 Henry H Nakasone Lighting control system for incandescent lamps
US4152607A (en) * 1977-02-14 1979-05-01 Nakasone Henry H Soft switch with rapid recovery circuit
EP0068618A2 (fr) 1981-05-18 1983-01-05 Westinghouse Electric Corporation Procédé pour immobiliser les ions d'un oxyde de metal actinide
US5030890A (en) * 1988-05-25 1991-07-09 Johnson Samuel A Two terminal incandescent lamp controller
EP0588273A1 (fr) * 1992-09-17 1994-03-23 ABBPATENT GmbH Procédé pour varier l'intensité lumineuse et dimmer pour mettre en oeuvre ce procédé
JPH07183083A (ja) * 1993-12-24 1995-07-21 Sharp Corp 調理機器用ランプ制御回路
DE29722905U1 (de) * 1997-12-29 1998-02-19 Wittmann, Gerhard, 81247 München Lampen-Steuerschaltung
WO2002021664A1 (fr) 2000-09-05 2002-03-14 Wrap S.P.A. Procede, systeme et dispositifs permettant la transmission de donnees dans un reseau electrique
EP1249922A1 (fr) * 2001-04-11 2002-10-16 Quadlux, Inc. Procédé et appareil de régulation du papillotement de tension
EP1465320A2 (fr) 2003-04-01 2004-10-06 WRAP S.p.A. Procédé et système pour le contrôle automatique d'appareils eléctriques, en particulier d'appareils électroménagers, et dispositif adapté pour ce procédé.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3023718A1 (fr) 2006-10-24 2016-05-25 Indesit Company S.p.A. Appareil de réfrigération
WO2010045697A1 (fr) * 2008-10-20 2010-04-29 Whirlpool S.A. Système et procédé d’éclairage intelligent
WO2012032460A1 (fr) 2010-09-10 2012-03-15 Indesit Company S.P.A. Appareil électroménager multifonctions
JP2018087691A (ja) * 2018-02-28 2018-06-07 三菱電機株式会社 冷蔵庫

Also Published As

Publication number Publication date
EP1856951B1 (fr) 2017-01-11
EP2282613A1 (fr) 2011-02-09
CN101124854B (zh) 2012-03-28
EA200701513A1 (ru) 2007-12-28
EP1856951A1 (fr) 2007-11-21
EA010991B1 (ru) 2008-12-30
CN101124854A (zh) 2008-02-13
ITTO20050148A1 (it) 2006-09-10

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