EP2239366A1 - Elektrisches Dampfbügeleisen mit Niedrigtemperaturdampfsteuerungssystem - Google Patents

Elektrisches Dampfbügeleisen mit Niedrigtemperaturdampfsteuerungssystem Download PDF

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Publication number
EP2239366A1
EP2239366A1 EP10157171A EP10157171A EP2239366A1 EP 2239366 A1 EP2239366 A1 EP 2239366A1 EP 10157171 A EP10157171 A EP 10157171A EP 10157171 A EP10157171 A EP 10157171A EP 2239366 A1 EP2239366 A1 EP 2239366A1
Authority
EP
European Patent Office
Prior art keywords
temperature
water
steam
valve
soleplate
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Withdrawn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
EP10157171A
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English (en)
French (fr)
Inventor
Lung Wai Choi
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2239366A1 publication Critical patent/EP2239366A1/de
Withdrawn legal-status Critical Current

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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
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • 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
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • D06F75/18—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron the water being fed slowly, e.g. drop by drop, from the reservoir to a steam generator
    • 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
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/26—Temperature control or indicating arrangements

Definitions

  • the present patent application relates to an electric steam iron with a low temperature steam control system.
  • Conventional electric steam irons include a water reservoir, a water discharge valve and a vaporization chamber. Water flows from the water reservoir, through the water discharge valve, and into the vaporization chamber. In the vaporization chamber, water is vaporized by the heat from the soleplate. When the soleplate is at a high temperature, steam is generated and escaped through steam holes on the soleplate. However, at a low temperature, as temperature drops, water remaining in the vaporization chamber tends to spill out undesirably from the steam holes during ironing.
  • a steam iron including:
  • the second bi-metal plate flexes away and closes the second valve when the temperature of the soleplate drops to a temperature below the second temperature
  • the first bi-metal plate flexes away and closes the first valve when the temperature of the soleplate drops to a temperature below the first temperature
  • each of the first and second bi-metal plates includes two overlaying metal plates with different thermal expansion coefficients.
  • the steam iron further includes first and second arms fixed to and extending from the first and second bi-metal plates for pushing the first and second valves respectively.
  • each of the first and second valves includes a spring for biasing the valve in a closed position.
  • the first and second valves are seated on a platform mounted between the water tank and the vaporization chamber.
  • first and the second valves are operable in first and second valve openings respectively on a platform mounted on the vaporization chamber, and the platform is provided with first and second passageways through which water flows from the first and second valve openings to the vaporization chamber.
  • the steam iron further includes a water compartment having a first opening through which water flows from the water tank into the water compartment, and second and third openings in registration with the first and second valve openings respectively through which water flows from the water compartment into the first and second passageways and then into the vaporization chamber.
  • the first and second bi-metal plates are supported on the vaporization chamber.
  • the first temperature is about 100°C.
  • the second temperature is about 140°C.
  • the second bi-metal plate flexes away and closes the second valve when the temperature of the soleplate drops to about 130°C.
  • the first bi-metal plate flexes away and closes the first valve when the temperature of the soleplate drops to about 95 °C.
  • the first volume of steam is generated at a rate of about 2 to 7 g/min. when the temperature of the soleplate reaches about 120°C.
  • a steam iron including:
  • first and second valve assemblies include:
  • the second bi-metal plate flexes away and closes the second valve when the temperature of the soleplate drops to a temperature below the second temperature
  • the first bi-metal plate flexes away and closes the first valve when the temperature of the soleplate drops to a temperature below the first temperature
  • each of the first and second bi-metal plates includes two overlaying metal plates with different thermal expansion coefficients.
  • the steam iron further includes first and second arms fixed to and extending from the first and second bi-metal plates for pushing the first and second valves respectively.
  • each of the first and second valves includes a spring for biasing the valve in a closed position.
  • the first and second valves are seated on a platform mounted between the water tank and the vaporization chamber.
  • first and the second valves are operable in first and second valve openings respectively on a platform mounted on the vaporization chamber, and the platform is provided with first and second passageways through which water flows from the first and second valve openings to the vaporization chamber.
  • the steam iron further includes a water compartment having an upper opening through which water flows from the water tank into the water compartment, and first and second lower openings in registration with the first and second valve openings respectively through which water flows from the water compartment into the first and second passageways and then into the vaporization chamber.
  • the first and second bi-metal plates are supported on the vaporization chamber.
  • the first temperature is about 100°C.
  • the second temperature is about 140°C.
  • the second bi-metal plate flexes away from the second valve when the temperature of the soleplate drops to about 130°C.
  • the first bi-metal plate flexes away from the first valve when the temperature of the soleplate drops to about 95 °C.
  • the first volume of steam is generated at a rate of about 2 to 7 g/min. when the temperature of the soleplate reaches about 120°C.
  • FIG. 1 is a perspective view of an electric steam iron having a low temperature steam control system.
  • FIGS. 2 , 3 and 4 are cross sectional views of the low temperature steam control system of an electric steam iron according to an embodiment disclosed in the present patent application.
  • the low temperature steam control system may include a low temperature water discharge valve 12 and a high temperature water discharge valve 14.
  • the low and high temperature water discharge valves 12, 14 may be actuated by a low temperature bi-metal plate and a high temperature bi-metal plate generally designated by reference numerals 16 and 18 respectively.
  • the low and high temperature bi-metal plates 16, 18 may be supported on an upper wall of a vaporization chamber 26 provided on a soleplate 28. Each bi-metal plate 16, 18 may include two overlaying metal plates with different thermal expansion coefficients. When the low and high temperature bi-metal plates 16, 18 are heated by a heating element 20 mounted on a soleplate 28, as shown in FIG. 5 , they can flex in two different directions due to the difference in thermal expansion property.
  • the low temperature bi-metal plate 16 may include two overlaying metal plates 16a, 16b
  • the high temperature bi-metal plate 18 may include two overlaying metal plates 18a, 18b.
  • An arm 17 can be fixed to and extending from the metal plate 16a for contacting with and pushing up the low temperature water discharge valve 12.
  • an arm 19 can be fixed to and extending from the metal plate 18a for contacting with and pushing up the high temperature water discharge valve 14.
  • the low and high temperature water discharge valves 12, 14 can be seated on a platform 50, which may be mounted between a main water tank 24 and the vaporization chamber 26.
  • Each water discharge valve 12, 14 may be biased to a normally closed position by a spring 40.
  • the low and high temperature water discharge valves 12, 14 are operable in first and second valve openings 56, 58 respectively provided on the platform 50.
  • the platform 50 may be provided with first and second passageways 52, 54 through which water can flow from the first and second valve openings 56, 58 into the vaporization chamber 26.
  • an intermediate water compartment 60 can be provided below the main water tank 24.
  • the intermediate water compartment 60 may include an upper opening 62 through which water can flow from the water tank 24 into the water compartment 60 when a steam shaft 30 is lifted, and first and second lower openings 64, 66 in registration with the first and second valve openings 56, 58 respectively through which water can flow from the water compartment 60 into the first and second passageways 52, 54 and then into the vaporization chamber 26.
  • the first and second lower openings 64, 66 may be formed on a horizontal partition wall 72 mounted on the soleplate 28.
  • the low temperature valve assembly may include the low temperature water discharge valve 12 and the low temperature bi-metal plate 16.
  • the high temperature valve assembly may include the high water discharge valve 14 and the high temperature bi-metal plate 18.
  • the low temperature bi-metal plate 16 is adapted to flex upwards and push the low temperature water discharge valve 12 open when the temperature at the soleplate 28 reaches about 100°C, and flex downwards and close the low temperature water discharge valve 12 when the temperature at the soleplate 28 drops to about 95 °C.
  • the high temperature bi-metal plate 18 is adapted to flex upwards and push the high temperature water discharge valve 14 open when the temperature at the soleplate 28 reaches about 140°C, and flex downwards and close the high temperature water discharge valve 14 when the temperature at the soleplate 28 drops to about 130°C.
  • both the low and high temperature bi-metal plates 16, 18 flex downwards and close the low and high temperature water discharge valves 12, 14, respectively. Water W in the water tank 24 cannot flow towards the vaporization chamber 26 even when the steam shaft 30 is lifted.
  • the high temperature bi-metal plate 18 flexs downwards and closes the high temperature water discharge valve 14.
  • the low temperature bi-metal plate 18 still flexs upwards allowing a small amount of water W in the water tank 24 to flow into the vaporization chamber 26. This can avoid the accumulation of excess water in the vaporization chamber 26, and can prevent undesirable discharge or spill of water from the steam vents 27 on the soleplate 28 at a low temperature.
  • the low temperature bi-metal plate 18 flexs downwards as well. Both the low and high temperature water discharge valves 12, 14 are closed and no steam or water comes out from the steam vents 27 on the soleplate 28.
  • the temperature of the soleplate 28 can be measured by a temperature sensor 70 located at the center of the soleplate 28.
  • the temperature at the soleplate 28 can be shown on a display 72 electrically connected to the temperature sensor 70.
  • bi-metal plates 16, 18 are employed to push the valves 12, 14 open, it is understood by one skilled in the art that one may employ other suitable heat-activated valve actuating means such as a combination of temperature sensing means and electro-mechanical valve actuating means, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • General Induction Heating (AREA)
EP10157171A 2009-04-08 2010-03-22 Elektrisches Dampfbügeleisen mit Niedrigtemperaturdampfsteuerungssystem Withdrawn EP2239366A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16786409P 2009-04-08 2009-04-08

Publications (1)

Publication Number Publication Date
EP2239366A1 true EP2239366A1 (de) 2010-10-13

Family

ID=42232673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10157171A Withdrawn EP2239366A1 (de) 2009-04-08 2010-03-22 Elektrisches Dampfbügeleisen mit Niedrigtemperaturdampfsteuerungssystem

Country Status (5)

Country Link
US (1) US20100257760A1 (de)
EP (1) EP2239366A1 (de)
JP (1) JP3160930U (de)
CN (2) CN201793976U (de)
HK (2) HK1138993A2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100257760A1 (en) * 2009-04-08 2010-10-14 Lung Wai Choi Electric steam iron with a low temperature steam control system
CN102720047B (zh) * 2012-05-23 2014-09-24 广东新宝电器股份有限公司 一种用于电烫斗的同时控制底板温度和蒸汽量的控制装置
ES2445163B1 (es) * 2012-08-30 2014-12-10 Bsh Electrodomésticos España, S.A. Plancha, sistema de plancha y estación de planchado a vapor y procedimiento para planchar tejidos
DE202014011498U1 (de) * 2013-07-25 2021-06-09 Koninklijke Philips N.V. Einrichtung zum Erzeugen von Dampf
CN106319913B (zh) * 2015-07-02 2019-04-09 佛山市顺德区美的电热电器制造有限公司 一种挂烫机以及挂烫机控制方法
CN105483972B (zh) * 2016-02-01 2018-11-23 珠海格力电器股份有限公司 蒸汽发生器的控制装置、方法、蒸汽发生器以及洗衣机
EP4108825A1 (de) * 2021-06-23 2022-12-28 Koninklijke Philips N.V. Kleidungspflegevorrichtung mit einer in der dämpffläche angeordneten hauptrille

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125953A (en) * 1976-07-15 1978-11-21 Fibelco N.V. Steam iron
US4197664A (en) * 1977-05-09 1980-04-15 Jura Elektroapparate-Fabriken L. Henzirohs A.G. Steam iron
EP0454048A2 (de) * 1990-04-24 1991-10-30 Robert Krups GmbH & Co. KG Dampfbügeleisen
DE10225576A1 (de) * 2001-02-10 2004-01-08 Inter Control Hermann Köhler Elektrik GmbH & Co. KG Thermisch gesteuerte Einrichtung zur Betätigung einer Ventilöffnung
EP1837436A1 (de) * 2006-03-22 2007-09-26 Wen-Ching Li Verbessertes Dampfbügeleisen
US20090000161A1 (en) * 2005-12-22 2009-01-01 Rowenta Werke Gmbh Iron Comprising a Valve Controlled by a Thermally Deformable Element

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017988A (en) * 1976-04-07 1977-04-19 General Electric Company Self-cleaning steam iron
JPS61162996A (ja) * 1985-01-11 1986-07-23 松下電器産業株式会社 スチ−ムアイロン
US5345703A (en) * 1993-10-06 1994-09-13 Black & Decker, Inc. Steam iron seal with tangential flow for surge
SG54401A1 (en) * 1996-12-12 1998-11-16 Philips Electronics Nv Steam iron
DE29705092U1 (de) * 1997-03-20 1997-06-05 Rowenta-Werke GmbH, 63071 Offenbach Dampfbügeleisen
SG55460A1 (en) * 1998-03-04 2000-04-18 Koninkl Philips Electronics Nv Device for ironing laundry
US20100257760A1 (en) * 2009-04-08 2010-10-14 Lung Wai Choi Electric steam iron with a low temperature steam control system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125953A (en) * 1976-07-15 1978-11-21 Fibelco N.V. Steam iron
US4197664A (en) * 1977-05-09 1980-04-15 Jura Elektroapparate-Fabriken L. Henzirohs A.G. Steam iron
EP0454048A2 (de) * 1990-04-24 1991-10-30 Robert Krups GmbH & Co. KG Dampfbügeleisen
DE10225576A1 (de) * 2001-02-10 2004-01-08 Inter Control Hermann Köhler Elektrik GmbH & Co. KG Thermisch gesteuerte Einrichtung zur Betätigung einer Ventilöffnung
US20090000161A1 (en) * 2005-12-22 2009-01-01 Rowenta Werke Gmbh Iron Comprising a Valve Controlled by a Thermally Deformable Element
EP1837436A1 (de) * 2006-03-22 2007-09-26 Wen-Ching Li Verbessertes Dampfbügeleisen

Also Published As

Publication number Publication date
CN201793976U (zh) 2011-04-13
CN101858030A (zh) 2010-10-13
HK1142216A2 (zh) 2010-11-26
JP3160930U (ja) 2010-07-15
HK1138993A2 (zh) 2010-09-03
US20100257760A1 (en) 2010-10-14

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