EP1492916A1 - Fer a repasser electrique - Google Patents

Fer a repasser electrique

Info

Publication number
EP1492916A1
EP1492916A1 EP03712098A EP03712098A EP1492916A1 EP 1492916 A1 EP1492916 A1 EP 1492916A1 EP 03712098 A EP03712098 A EP 03712098A EP 03712098 A EP03712098 A EP 03712098A EP 1492916 A1 EP1492916 A1 EP 1492916A1
Authority
EP
European Patent Office
Prior art keywords
contact point
soleplate
radiator
electric iron
iron according
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Withdrawn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
EP03712098A
Other languages
German (de)
English (en)
Inventor
Carmelo Albandoz Ruiz De Ocenda
Alfred Fraunhofer
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1492916A1 publication Critical patent/EP1492916A1/fr
Withdrawn legal-status Critical Current

Links

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
    • D06F75/24—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat
    • 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
    • D06F75/38—Sole plates

Definitions

  • the invention relates to an electric iron according to the preamble of claim 1.
  • a generic electric iron is known from DE 42 12 286 A1.
  • the electric iron includes a metallic soleplate and a U-shaped electrical resistance heater.
  • the radiator is positively embedded in the die-cast iron soleplate. When the iron is in operation, the radiator is supplied with electrical energy via electrical contacts at the ends of the two legs of the U-shaped radiator. The radiator emits the electrical energy in the form of heat to the soleplate.
  • a thermostat is provided which detects the current temperature of the soleplate and controls a controller which switches the electric heating element on and off as a function of the current soleplate temperature and the ironing temperature selected by the user.
  • the thermostat has a temperature sensor, which is generally formed by a bimetal.
  • a temperature sensor which is generally formed by a bimetal.
  • the iron soleplate is therefore usually provided with a contact point to which the thermostat is attached.
  • the contact point generally consists of a dome-shaped massive elevation which is molded directly onto the soleplate of the iron.
  • DE 42 12 286 A1 proposes to provide a separate heat-conducting bridge which leads from the contact point to at least one leg of the radiator, thereby a higher heat flow can be transferred.
  • This solution is particularly useful in cases where the contact point is not directly adjacent to the radiator, but is arranged at a clear distance from it.
  • the disadvantage is that a separate thermal bridge, which the heat flow from Raising the radiator to the contact point is of little or no improvement if the contact point is already placed directly on the radiator.
  • the object of the invention is to improve the thermal coupling of the contact point to the radiator.
  • this object is achieved in that the soleplate of the iron has a gap space which is formed locally in the area of the contact point and an associated radiator section and which at least reduces heat conduction of the heat flow emanating from the radiator in a direction away from the contact point.
  • the heat flow from the radiator to the contact point is improved in that the heat generated by the radiator is preferably transported in the direction of the contact point and heat transport away from the contact point is prevented or at least reduced.
  • Local overheating is prevented in particular during the first heating process after switching on the iron. This most problematic moment of the heating control is solved particularly effectively by the invention in order to prevent the ironing material from burning. A further improvement arises if the outflow of heat that has already reached the contact point is prevented or at least reduced.
  • the gap space is preferably arranged on one side of the heating element which faces away from the side of the heating element which points in the direction of the contact point.
  • the gap can thus be arranged on those sides of the radiator that are not directed directly at the contact point.
  • the gap space is arranged on a side of the radiator section assigned to the contact point opposite the contact point. This position has the advantage that heat can be conducted particularly effectively directly in the vicinity of the radiator to the contact point, since the path between this radiator section and the contact point is the shortest and heat losses that would result from a long path are avoided.
  • the contact point is arranged eccentrically to the axis of symmetry of the U-shaped radiator in the vicinity of one of the two limbs of the radiator, then the at least one opening can extend along the outer edge of this limb in the region of the contact point.
  • One possibility is to design the gap space or the at least one separate opening as an elongated hole in the soleplate of the iron, which extends outside along the U-shaped radiator.
  • the gap space can be formed by at least one separate opening in the soleplate, which extends along extends an outside of the U-shaped radiator. This has the advantage that the separate opening also takes on another function as a steam passage opening.
  • the elongated hole can preferably extend over a length of between 2 cm and 6 cm. It is particularly favorable and balanced if the elongated hole in the usual iron dimensions extends over a length between 3 cm and 5 cm outside along the U-shaped radiator. The elongated hole essentially prevents or reduces heat flow in the direction of the outer edge of the soleplate.
  • a second possibility, preferably to conduct the heat emanating from the radiator section in the direction of the contact point, is to design the gap space as a recess on the underside of the soleplate of the iron, which extends below the radiator section assigned to the contact point.
  • Such a gap space prevents or reduces heat flow in the direction of the bottom surface of the soleplate in the area of this radiator section. So that heat flow from the contact point to the bottom surface of the soleplate is prevented or reduced, the gap space can be formed by a recess on the underside of the soleplate, which extends below the contact point. The gap is located in the foundation of the dome-shaped contact point.
  • the heat generally transferred laterally from the radiator to the contact point is therefore preferably directed upwards in the direction of the thermostat attached to the contact parts, and a flow of the heat through the bottom of the contact point into the soleplate of the iron is prevented or reduced.
  • the recess preferably has a base whose size corresponds at least to the base of the contact point. If the contact point is designed as a dome-shaped elevation, it is expedient to choose the size of the base area of the recess between 4 cm 2 and 25 cm 2 . In order to ensure a particularly balanced relationship between the short response time of the thermostat and uniform heat distribution within the soleplate, the base area of the recess should preferably be between 7 cm 2 and 17 cm 2 .
  • the height of the gap should be between 0.5 mm and 5 mm. Particularly balanced results are achieved if the height of the gap space is preferably between 2 mm and 4 mm.
  • Sensitive ironing goods i.e. Items to be ironed can be processed without the risk of damaging them due to uneven temperature distribution.
  • the iron soleplate according to the invention can have two gap spaces, the one gap space being designed as a separate opening which is located at the contact point extends opposite side of the radiator section and the other gap space is formed as at least one recess on the underside of the soleplate, which extends below the radiator section and / or the contact point.
  • An elongated hole according to claims 3 to 5 is therefore preferably combined with a recess according to claims 6 to 10.
  • These two gap spaces can be arranged such that they are connected to one another at at least one point, ie the two gap spaces merge into one another.
  • the effect of the thermal decoupling of the radiator section is particularly effective since there are no webs between the two gap spaces that could dissipate heat.
  • the invention is not limited to electric steam irons, but also extends to electric dry irons.
  • the iron soles of the electric irons according to the invention can consist of different materials, in particular of die-cast aluminum, and can optionally be provided with a separate soleplate.
  • the soleplate can preferably be made of stainless steel, aluminum or a soleplate coated with enamel or ceramic. If the soleplate has a soleplate which is fastened to the underside of the soleplate in flat contact with the latter, one side of the recess or the gap space according to the invention is delimited by the soleplate.
  • Figure 1 is a plan view of the underside of an inventive
  • Figure 2 is a plan view of the top of an iron soleplate according to
  • FIG. 3 shows a cross section through an iron according to the invention
  • FIG. 4 shows a cross section through an iron soleplate according to FIG.
  • FIG. 1 shows the underside of an iron soleplate 1 according to the invention.
  • An electrical resistance heating element 3 is cast into the iron soleplate 1 produced using the aluminum die-casting process.
  • the heater 3 is U-shaped and extends along steam through openings 7, which connects a steam chamber 8 to the underside of the soleplate 1. Ends 9 and 10 of the two legs of the U-shaped radiator 3 protrude from the steam chamber 8 and have the electrical contacts.
  • a dome-shaped contact point 6 is cast onto the soleplate 1 within the steam chamber 8.
  • the contact point 6 forms a base on which a temperature sensor 5 of a control device 4 is contacted.
  • the dome-shaped contact point 6 borders directly on a radiator section 14 of one leg of the U-shaped radiator 3.
  • the dome-shaped contact point 6 rises on the top of the iron soleplate 1.
  • Below the dome-shaped contact point 6, the gap space 2b is located on the underside of the iron soleplate 1 ,
  • the gap 2b is formed as a recess on the underside of the soleplate 1.
  • the gap 2b is essentially rectangular and has a base area of 4.5 cm x 3 cm.
  • the gap 2b as shown in Figure 1, thus has a base area of 13.5 cm 2 .
  • FIG. 2 shows the top of the iron soleplate 1 according to the invention.
  • the gap space 2a is designed as an elongated hole in the iron soleplate 1. This gap 2a extends outside along one leg of the U-shaped radiator 3.
  • the elongated hole 2a extends along a number of the steam outlet openings 7 in the vicinity of the dome-shaped contact point 6.
  • the elongated hole 2a is located on the opposite side of the leg of the radiator 3 which adjoins the dome-shaped contact point 6 to the radiator section 14 of the U-shaped radiator 3.
  • the elongated hole 2a extends along an outer side 15 of the U-shaped radiator 3 over a length of 4.5 cm.
  • FIG. 3 shows the cross section through the iron soleplate 1 according to the invention.
  • the dome-shaped contact point 6 is cast onto the iron soleplate 1 produced using the aluminum die-casting process.
  • the temperature sensor 5 which is of conventional design as a bimetal, is thermally coupled to the soleplate 1.
  • the temperature sensor 5 is connected to the control device 4, which is attached via a rotary knob 13 in a housing 12 of the iron.
  • the gap 2b is arranged below the dome-shaped contact point 6.
  • the gap space 2a designed as an elongated hole directly adjoins the gap space 2b formed as a recess.
  • the gap space 2a designed as an elongated hole is directly connected to the gap space 2b designed as a recess.
  • the gap space 2b designed as a recess extends both below the radiator 3 and below the contact point 6.
  • the gap spaces 2a and 2b according to the invention can in principle be used in steam irons and also in dry irons.
  • the gap spaces 2a and 2b are preferably used in steam irons, the soleplate 1 of which, as shown in FIG. 3, are covered by a soleplate 11.
  • the sole plate 11 delimits the underside of the gap space 2b formed as a recess and is in flat contact with the underside of the iron soleplate 1. This results in a closed ironing surface which rests on the ironing material and the thermal decoupling of the dome-shaped contact point 6 is ensured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)

Abstract

L'invention concerne un fer à repasser électrique comprenant une semelle de fer à repasser (1), chauffée par un élément thermique (3), et un dispositif de régulation (4), permettant de régler ledit élément thermique (3) et comprenant une sonde de température (5), reliée thermiquement à la semelle de fer à repasser (1) au niveau d'un point de contact. L'objectif de cette invention est d'améliorer le couplage thermique du point de contact à l'élément thermique. A cet effet, ladite semelle de fer à repasser (1) présente une fente (2), localisée dans la zone du point de contact (6) et d'une section d'élément thermique correspondante (14) et par le biais de laquelle une conduction thermique du flux de chaleur émanant de l'élément thermique (3) est au moins réduite dans une direction s'éloignant du point de contact (6). Ladite invention offre l'avantage de permettre également une meilleure régulation de la température de la semelle de fer à repasser (1), lorsque le point de contact (6) se trouve directement sur l'élément thermique (3) ou au moins très proche de ce dernier.
EP03712098A 2002-04-03 2003-03-26 Fer a repasser electrique Withdrawn EP1492916A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200200885 2002-04-03
ES200200885A ES2211279B1 (es) 2002-04-03 2002-04-03 Plancha electrica.
PCT/EP2003/003142 WO2003083202A1 (fr) 2002-04-03 2003-03-26 Fer a repasser electrique

Publications (1)

Publication Number Publication Date
EP1492916A1 true EP1492916A1 (fr) 2005-01-05

Family

ID=28459673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03712098A Withdrawn EP1492916A1 (fr) 2002-04-03 2003-03-26 Fer a repasser electrique

Country Status (5)

Country Link
US (1) US20050040153A1 (fr)
EP (1) EP1492916A1 (fr)
CN (1) CN1665977B (fr)
ES (1) ES2211279B1 (fr)
WO (1) WO2003083202A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0901855D0 (en) 2009-02-05 2009-03-11 Strix Ltd Electric steam generation
PL2941502T3 (pl) 2013-01-02 2018-01-31 Koninklijke Philips Nv Parownica do odzieży
DE202014011498U1 (de) * 2013-07-25 2021-06-09 Koninklijke Philips N.V. Einrichtung zum Erzeugen von Dampf
JP2013255833A (ja) * 2013-08-28 2013-12-26 Toshiba Home Technology Corp アイロン
CN105299872B (zh) * 2015-10-26 2018-09-07 黄杰 快速传热型加热器
JP6887137B2 (ja) * 2016-12-21 2021-06-16 パナソニックＩｐマネジメント株式会社 スチーム噴出器およびスチームアイロン
CN108914521A (zh) * 2018-08-23 2018-11-30 浙江月立电器有限公司 一种快速方便补水的熨烫机

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233615A (en) * 1939-06-19 1941-03-04 American Electrical Heater Co Electrically heated laundry iron
US2880530A (en) * 1954-04-27 1959-04-07 Dormeyer Corp Electric iron
US3104482A (en) * 1960-05-02 1963-09-24 Sunbeam Corp Pressing iron
US3369103A (en) * 1965-05-14 1968-02-13 Proctor Silex Corp Electric iron
US3260005A (en) * 1965-06-02 1966-07-12 Son Chief Electrics Inc Method of assembling a steam iron base
US3811208A (en) * 1972-11-07 1974-05-21 Sunbeam Corp Electric steaming and pressing appliance
US3930325A (en) * 1974-07-24 1976-01-06 General Electric Company Steam iron soleplate construction
US4743736A (en) * 1984-12-31 1988-05-10 Black & Decker, Inc. Switching apparatus for an appliance control circuit
US4661685A (en) * 1985-09-06 1987-04-28 John Zink Company Electronic pressing iron
US5146700A (en) * 1991-10-31 1992-09-15 Coors Technical Ceramics Company Steam iron with bonded ceramic and aluminum components
JP2000037599A (ja) * 1998-07-21 2000-02-08 Matsushita Electric Ind Co Ltd アイロン
JP2000042299A (ja) * 1999-08-06 2000-02-15 Matsushita Electric Ind Co Ltd アイロン

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03083202A1 *

Also Published As

Publication number Publication date
CN1665977B (zh) 2011-08-10
CN1665977A (zh) 2005-09-07
US20050040153A1 (en) 2005-02-24
WO2003083202A1 (fr) 2003-10-09
ES2211279B1 (es) 2005-10-01
ES2211279A1 (es) 2004-07-01

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