EP2325372B1 - Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel - Google Patents

Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel Download PDF

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Publication number
EP2325372B1
EP2325372B1 EP10193424.8A EP10193424A EP2325372B1 EP 2325372 B1 EP2325372 B1 EP 2325372B1 EP 10193424 A EP10193424 A EP 10193424A EP 2325372 B1 EP2325372 B1 EP 2325372B1
Authority
EP
European Patent Office
Prior art keywords
washing machine
led
lighting device
wash
light beam
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.)
Not-in-force
Application number
EP10193424.8A
Other languages
English (en)
French (fr)
Other versions
EP2325372A1 (de
Inventor
Valter Castellarin
Daniele Favaro
Luca Gruppo
Chris Hill
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 Corp NV
Original Assignee
Electrolux Home Products Corp NV
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Filing date
Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP10193424.8A priority Critical patent/EP2325372B1/de
Publication of EP2325372A1 publication Critical patent/EP2325372A1/de
Application granted granted Critical
Publication of EP2325372B1 publication Critical patent/EP2325372B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/266—Gaskets mounted between tub and casing around the loading opening
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups

Definitions

  • the present invention relates to a washing machine with a wash drum lighting device.
  • last-generation household washing machines are equipped with a lighting device, normally located inside the wash chamber of the machine to illuminate the drum, so that the laundry inside the drum is visible to the user during and/or at the end of the wash cycle.
  • the lighting device comprises a halogen or incandescent lamp located inside the wash chamber, at the door opening of the machine, and oriented to light the inside of the drum; and an electric control circuit for supplying the lamp with a given electric power.
  • the washing machine lighting device described above has various drawbacks.
  • the incandescent or halogen lamps of lighting devices of the above type also have the major drawback of high operating temperature.
  • highly complex electronic control circuits are required to control power supply to the lamp as a function of the temperature of the lamp, and so prevent overheating and the risk of fire.
  • halogen or incandescent lamps indiscriminately illuminate all the space surrounding the lamp, as opposed to producing a light beam directed solely onto the drum area to be illuminated. In point of fact, a large percentage of the light beam emitted by the lamps of currently used lighting devices is wasted.
  • EP 1 582 619 discloses a washing machine having a housing, a door in the front of the housing, and a drum located in the housing whose interior is accessible through the door.
  • a luminous ring-shaped display element is placed around the porthole so that the user can be informed at a glance of the operating state of the machine, even if is far from the machine.
  • the way in which the ring-shaped element is switched on is indicative of the point of the washing cycle reached by the machine.
  • a washing machine comprising a wash drum lighting device as claimed in the accompanying Claims.
  • Number 1 in Figure 1 indicates as a whole a household washing machine substantially comprising a substantially parallelepiped-shaped outer casing 2, one outer face of which has an opening 3 to which a door (not shown) is hinged.
  • Washing machine 1 also comprises a wash chamber 5 housed inside casing 2 and connected to opening 3 by a tubular seal or bellows 6; and a wash drum 7 housed inside wash chamber 5 and rotated, in use, by a drive unit (not shown) about a substantially horizontal axis of rotation A.
  • Washing machine 1 also comprises a lighting device 8 for lighting wash drum 7 and which, unlike the wash drum lighting devices of known washing machines, comprises one or more LEDs 9 for emitting one or more light beams towards the opening of wash drum 7 to illuminate the inside of the drum.
  • lighting device 8 comprises a substantially ogival casing or shell 10, which has a lens 11 at one end 10a and fits stably, but in easily removable manner, inside a seat 12 formed in bellows 6, so that lens 11 faces wash drum 7 ( Figure 1 ).
  • Lighting device 8 also comprises a supporting rod 13, which has LED 9 at one end 13a and fits axially inside a tubular cavity 14 formed in shell 10, so that LED 9 is positioned facing lens 11 of shell 10.
  • Lens 11 provides for concentrating the light beam from LED 9 onto wash drum 7, and, in the example shown, is designed to produce a light-emitting cone with an angle ⁇ of about 80°.
  • lens 11 provides for appropriately collimating the light beams from LEDs 9 onto wash drum 7.
  • shell 10 is made of preferably transparent plastic material, and, in addition to the optical function described above, also protects LED 9 on rod 13 against water.
  • shell 10 is provided on the end with a number of axially spaced lock seals 15, which, on the one hand, seal the end of seat 12 facing wash drum 7, to protect LED 9 against water, and, on the other, assist in locking shell 10 axially inside seat 12.
  • Shell 10 also has two longitudinal anchoring flanges 16, which project from the opposite end of shell 10 to lens 11, are positioned facing and parallel to each other, and the free end of each of which has a supporting edge 16a which, when shell 10 is fitted inside seat 12, rests on the end edge of seat 12 opposite wash drum 7 to prevent axial movement of shell 10 towards wash drum 7.
  • Supporting rod 13 is substantially cylindrical, is made of metal, such as aluminium or any other similar metal material, and provides for dissipating into the outside atmosphere the heat generated by LED 9.
  • the body of rod 13 has two longitudinal grooves 17 (only one shown in Figure 2 ), each for housing a portion of conducting wire of LED 9; and two anchoring tabs 18 (only one shown in Figure 2 ) which fit inside respective seats (not shown), formed in the inner walls of tubular cavity 14 of shell 10, to mechanically connect rod 13 and shell 10 into one body.
  • Seat 12 is substantially complementary in shape to the outer shape of shell 10, and is preferably integrated in the top portion of bellows 6 to reduce exposure of lighting device 8 to water.
  • seat 12 extends along an axis B preferably lying in a vertical diametrical plane of bellows 6 and substantially sloping with respect to horizontal axis A of the wash drum.
  • axis B is substantially parallel to axis A, and seat 12 extends substantially on the inner wall of bellows 6.
  • lighting device 8 also comprises an electronic control unit 19 connected to and for supplying electric operating power to LED 9.
  • Electronic control unit 19 substantially comprises a power block 20 for generating the current/voltage supply of LED 9; a detecting block 21 for detecting the junction temperature T G of LED 9; and a control block 22 for controlling power block 20 as a function of the temperature T G reading.
  • power block 20 may be defined by an electronic PWM (Pulse Width Modulation) circuit connected to the two input terminals of LED 9 to supply electric power to the LED, and having an input supplied with a control signal S COM indicating the electric power to be supplied to LED 9.
  • PWM Pulse Width Modulation
  • Detecting block 21 is input-connected to the two input terminals of LED 9, and has an output supplying a current/voltage signal S T proportional to the junction temperature T G of LED 9; and control block 22 receives and processes signal S T to produce, as a function of the junction temperature T G reading, signal S COM coding the value of the electric power to be supplied to LED 9.
  • control block 22 may be defined by a microprocessor, which compares the temperature T G reading with a predetermined maximum temperature threshold T S , and, in the event the temperature T G reading exceeds the predetermined maximum temperature threshold T S , provides for controlling power block 20 to reduce the electric power supply to LED 9 and so reduce the junction temperature of LED 9.
  • electronic control unit 19 acts as an electronic closed-loop circuit, which controls LED 9 to keep its junction temperature stable below the predetermined maximum temperature threshold T S .
  • LED 9 of lighting device 8 may be defined by a one-colour LED to generate a light beam of one predetermined colour; or by a multicolour RGB diode for generating a number of light beams of different colours, i.e. a number of light beams of different frequency spectrums; or by a number of LEDs, each emitting a light beam of a different colour.
  • lighting device 8 comprises a multicolour RGB diode or a number of LEDs of different colours
  • the colour of the light beam directed onto wash drum 7 can be varied as a function of the operating conditions and/or operating status of washing machine 1.
  • Electronic control unit 19 is able to control the multicolour RGB diode to generate a light beam with a frequency spectrum, i.e. a colour, associated with a given operating condition or a given operating status of the washing machine.
  • electronic control unit 19 may control the multicolour RGB diode or the LEDs to generate a light beam of a predetermined first colour, e.g. red, when the operating status corresponds to the start of the wash cycle; and/or to generate a light beam of a predetermined second colour, e.g. green, when the operating status corresponds to the end of the wash cycle; and/or to generate a light beam of a predetermined third colour, e.g. yellow, when washing machine 1 is in an intermediate wash cycle status.
  • a predetermined first colour e.g. red
  • a predetermined second colour e.g. green
  • a predetermined third colour e.g. yellow
  • Emission of different-coloured light beams may be activated by control block 22 on the basis of an information signal S INF supplied to control block 22 by an additional external control module for controlling and monitoring the operating status of washing machine 1.
  • Lighting device 8 of washing machine 1 described above has numerous advantages.
  • using LED 9 provides for : reducing electric power consumption in use; and reducing the heat produced during emission of the beam, also by virtue of the heat-dissipating function performed by supporting rod 13.
  • LED 9 advantageously provides for concentrating the projected beam solely on the opening of wash drum 7, thus reducing light dispersion outside the drum.
  • lighting device 8 has the major advantage of coding the operating status of washing machine 1 by means of a predetermined colour, thus enabling the user to determine the current operating condition of washing machine 1 quickly and easily, even at a distance from the machine, simply on the basis of the colour of the light projected onto the drum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Claims (9)

  1. Waschmaschine (1), umfassend ein Außengehäuse (2); eine Waschkammer (5), die in dem Außengehäuse (2) untergebracht ist; eine Waschtrommel (7), die in der Waschkammer (5) untergebracht ist und die um eine Rotationsachse (A) rotiert; und eine Beleuchtungsvorrichtung (8), die innerhalb des Außengehäuses (2) angeordnet ist, um die Waschtrommel (7) zu beleuchten; dadurch gekennzeichnet, dass das Außengehäuse (2) eine Öffnung (3) aufweist und die Waschkammer (5) durch eine Dichtung (6) mit der Öffnung (3) verbunden ist; wobei die Beleuchtungsvorrichtung (8) eine Hülle (10) umfasst, die an einem Ende (10a) mit einer Linse versehen ist und stabil, aber leicht herausnehmbar in einen Sitz (12) passt, der in der Dichtung (6) der Waschmaschine (1) ausgebildet ist, und wobei die Beleuchtungsvorrichtung (8) eine Anzahl von LEDs (9) zum Erzeugen von Lichtstrahlen mit unterschiedlichen Frequenzspektren oder eine Mehrfarben-LED (9) zum Erzeugen einer Anzahl von Lichtstrahlen mit unterschiedlichen Frequenzspektren umfasst, wobei die unterschiedlichen Frequenzspektren des Lichtstrahls als Funktion der Betriebsbedingungen und/oder des Betriebszustands der Waschmaschine variiert werden können.
  2. Waschmaschine nach Anspruch 1, wobei die Beleuchtungsvorrichtung eine Haltestange (13) umfasst, an deren einem Ende (13a) sich die mindestens eine LED (9) befindet und die axial in die Hülle (10) passt, so dass mindestens eine LED (9) der Linse (11) auf der Hülle (10) zugewandt ist.
  3. Waschmaschine nach Anspruch 2, wobei die Haltestange (13) aus metallischem Material gefertigt ist, um die von der mindestens einen LED (9) erzeugte Wärme zu zerstreuen.
  4. Waschmaschine nach einem der vorhergehenden Ansprüche, wobei die Beleuchtungsvorrichtung (8) elektrische Steuerungsmittel (19) umfasst, um die elektrische Stromversorgung der mindestens einen LED (9) als Funktion der Temperatur (TG) zu variieren, die an einer Sperrschicht der mindestens einen LED (9) gemessen wird.
  5. Waschmaschine nach Anspruch 4, wobei die elektrischen Steuerungsmittel (19) Folgendes umfassen: Messmittel (21), die mit der mindestens einen LED (9) verbunden sind, um ein Signal (ST) zu erzeugen, das auf die SperrschichtTemperatur (TG) der mindestens einen LED (9) bezogen ist; Strommittel (20) zum Variieren der elektrischen Stromversorgung der mindestens einen LED (9); und Steuerungsmittel (22), die das Temperatursignal (ST) empfangen und die Strommittel (20) als Funktion der gemessenen Sperrschichttemperatur (TG) steuern.
  6. Waschmaschine nach Anspruch 5, wobei die Steuerungsmittel (22) über die Strommittel (20) eine Reduzierung der Stromversorgung der mindestens einen LED (9) veranlassen, wenn die gemessene Temperatur (TG) über einem bestimmten Temperaturschwellenwert (TS) liegt.
  7. Waschmaschine nach einem der vorhergehenden Ansprüche, wobei die Beleuchtungsvorrichtung (8) eine Anzahl von LEDs (9) umfasst, um auf Befehl jeweilige Lichtstrahlen entsprechender Frequenzspektren zu erzeugen; wobei die elektrischen Steuerungsmittel (19) selektiv das Einschalten jeder LED (9) veranlassen, um in Abhängigkeit vom Betriebszustand der Waschmaschine (1) einen Lichtstrahl eines bestimmten Frequenzspektrums auf die Waschtrommel (7) auszusenden.
  8. Waschmaschine nach einem der Ansprüche 1 bis 6, wobei die Beleuchtungsvorrichtung (8) eine Mehrfarben-LED (9) umfasst, um auf Befehl eine Anzahl von Lichtstrahlen entsprechender Frequenzspektren auszusenden; wobei die elektrischen Steuerungsmittel (19) die Mehrfarben-LED (9) veranlassen, in Abhängigkeit vom Betriebszustand der Waschmaschine (1) einen Lichtstrahl eines bestimmten Frequenzspektrums auf die Waschtrommel (7) auszusenden.
  9. Waschmaschine nach einem der vorhergehenden Ansprüche, wobei die elektrischen Steuerungsmittel (19) geeignet sind, die Mehrfarben-LED oder die Anzahl von LEDs zu veranlassen, einen Lichtstrahl mit einer vorbestimmten ersten Farbe zu erzeugen, wenn der Betriebszustand dem Beginn des Waschzyklus entspricht; und/oder einen Lichtstrahl mit einer vorbestimmten zweiten Farbe zu erzeugen, wenn der Betriebszustand dem Ende des Waschzyklus entspricht; und/oder einen Lichtstrahl mit einer vorbestimmten dritten Farbe zu erzeugen, wenn sich die Waschmaschine in einem dazwischenliegenden Waschzykluszustand befindet.
EP10193424.8A 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel Not-in-force EP2325372B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10193424.8A EP2325372B1 (de) 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06123268A EP1918448B1 (de) 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel
EP10193424.8A EP2325372B1 (de) 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP06123268.2 Division 2006-10-31
EP06123268 Previously-Filed-Application 2006-10-31

Publications (2)

Publication Number Publication Date
EP2325372A1 EP2325372A1 (de) 2011-05-25
EP2325372B1 true EP2325372B1 (de) 2013-05-15

Family

ID=37837009

Family Applications (3)

Application Number Title Priority Date Filing Date
EP10193419A Not-in-force EP2314751B1 (de) 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel
EP10193424.8A Not-in-force EP2325372B1 (de) 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel
EP06123268A Active EP1918448B1 (de) 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10193419A Not-in-force EP2314751B1 (de) 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06123268A Active EP1918448B1 (de) 2006-10-31 2006-10-31 Waschmaschine mit einer Beleuchtungseinrichtung für eine Trommel

Country Status (6)

Country Link
EP (3) EP2314751B1 (de)
AT (1) ATE501297T1 (de)
DE (1) DE602006020591D1 (de)
ES (1) ES2363728T3 (de)
PL (1) PL1918448T3 (de)
WO (1) WO2008052659A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009034841B4 (de) * 2009-07-27 2020-11-26 Emz-Hanauer Gmbh & Co. Kgaa Lichtabgabeeinrichtung für eine Trommel eines Haushaltsgeräts
EP2418314B1 (de) * 2010-08-09 2014-12-03 Miele & Cie. KG Waschmaschine mit einer Faltenbalgdichtung
BE1019306A5 (nl) 2010-11-25 2012-05-08 Medibeg N V Manchet voor wasmachine.
EP2458054B1 (de) * 2010-11-29 2014-01-08 Electrolux Home Products Corporation N.V. Verfahren zum Betrieb einer Trommelbeleuchtungsvorrichtung in einer Wäschebehandlungsmaschine und Wäschebehandlungsmaschine mit dem Verfahren
EP2458059B1 (de) 2010-11-29 2013-07-03 Electrolux Home Products Corporation N.V. Waschmaschine mit Trommelbeleuchtungsvorrichtung
DE102012009264A1 (de) * 2011-05-19 2012-11-22 Marquardt Mechatronik Gmbh Beleuchtung für ein Hausgerät
ITRN20110075A1 (it) * 2011-11-07 2013-05-08 Indesit Co Spa Elettrodomestico.
EP2706139A1 (de) * 2012-09-07 2014-03-12 Electrolux Home Products Corporation N.V. Verbesserungen an einer Abflusskreisfilteranordnung für Waschvorrichtungen
EP2941501A1 (de) 2012-12-30 2015-11-11 Arçelik Anonim Sirketi Waschmaschine mit einer beleuchteten trommel
US10078020B2 (en) * 2013-08-23 2018-09-18 Whirlpool Corporation Methods and apparatus to determine home appliance cabinet temperature using a light emitting diode (LED)
DE102014201926B4 (de) * 2014-02-04 2020-07-09 BSH Hausgeräte GmbH Haushaltsgerät
DE102015223132A1 (de) * 2015-11-24 2017-05-24 BSH Hausgeräte GmbH Beleuchtungseinrichtung, Wäschetrommel und Wäschebehandlungsgerät
CN116145377A (zh) * 2021-11-19 2023-05-23 重庆海尔洗衣机有限公司 用于衣物处理系统的控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916652A (en) * 1973-06-26 1975-11-04 Procter & Gamble Washing machine
DE3843385C2 (de) * 1988-12-23 1996-07-11 Aeg Hausgeraete Gmbh Stirnseitig beschickbare Trommelwaschmaschine
DE3843386C2 (de) * 1988-12-23 1996-04-25 Aeg Hausgeraete Gmbh Stirnseitig beschickbare Trommelwaschmaschine
DE4337186A1 (de) * 1993-10-30 1995-05-04 Miele & Cie Trommelwaschmaschine mit einer elektrischen Lichtquelle
US5869932A (en) * 1995-09-18 1999-02-09 Samsung Electronics Co., Ltd. Automatic illuminating apparatus of washing machine and control circuit thereof
DE19919028A1 (de) * 1999-04-27 2000-11-02 Miele & Cie Stirnseitig beschickbare Trommelwaschmaschine mit einer Beleuchtungseinrichtung
DE102004016643A1 (de) 2004-03-30 2005-10-27 Whirlpool Corp., Benton Harbor Waschmaschine

Also Published As

Publication number Publication date
EP2314751B1 (de) 2012-08-22
EP2325372A1 (de) 2011-05-25
EP1918448A1 (de) 2008-05-07
WO2008052659A1 (en) 2008-05-08
ES2363728T3 (es) 2011-08-12
DE602006020591D1 (de) 2011-04-21
ATE501297T1 (de) 2011-03-15
EP2314751A1 (de) 2011-04-27
EP1918448B1 (de) 2011-03-09
PL1918448T3 (pl) 2011-10-31

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