EP3246459B1 - Fer a repasser a vapeur comportant un corps chauffant muni d'une chambre de vaporisation et une surface de repassage en relation thermique avec le corps chauffant - Google Patents

Fer a repasser a vapeur comportant un corps chauffant muni d'une chambre de vaporisation et une surface de repassage en relation thermique avec le corps chauffant Download PDF

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Publication number
EP3246459B1
EP3246459B1 EP16170011.7A EP16170011A EP3246459B1 EP 3246459 B1 EP3246459 B1 EP 3246459B1 EP 16170011 A EP16170011 A EP 16170011A EP 3246459 B1 EP3246459 B1 EP 3246459B1
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EP
European Patent Office
Prior art keywords
heating body
contact
plate
iron according
iron
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.)
Active
Application number
EP16170011.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3246459A1 (fr
Inventor
Andrea Lukas
Björn SCHEVE
Dierk Spatz
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.)
Rowenta Werke GmbH
Original Assignee
Rowenta Werke 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 Rowenta Werke GmbH filed Critical Rowenta Werke GmbH
Priority to ES16170011T priority Critical patent/ES2927039T3/es
Priority to EP16170011.7A priority patent/EP3246459B1/fr
Priority to CN201710320473.3A priority patent/CN107385846B/zh
Priority to US15/596,662 priority patent/US10358764B2/en
Publication of EP3246459A1 publication Critical patent/EP3246459A1/fr
Application granted granted Critical
Publication of EP3246459B1 publication Critical patent/EP3246459B1/fr
Active 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
    • 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
    • D06F75/08—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
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/20—Arrangements for discharging the steam to the article being ironed
    • 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 present invention relates to a steam iron comprising a heating body comprising a vaporization chamber and an ironing surface in thermal relationship with the heating body, the ironing surface being intended to come into contact with the linen to be ironed and being advantageously provided with steam outlet holes, and relates more particularly to an iron in which the heat produced by the heating body is transmitted to the ironing surface by conduction through at least two elements of the iron placed against each other when assembling the iron.
  • a steam iron comprising a soleplate comprising a heating body comprising a vaporization chamber for the production of steam and an ironing surface in thermal relationship with the heating body, the ironing surface being intended to come into contact with the laundry to be ironed and being provided with steam outlet holes.
  • the ironing surface is carried by a cover which is attached to the heating body, the heat produced by the heating body being transmitted to the ironing surface by conduction through the heating body then through a cover, the latter being in contact with the heating body at the level of contact zones constituted by the walls of distribution channels and by heat transfer studs.
  • Such an iron construction makes it possible to limit the thermal flow established towards the ironing surface in order to have a temperature of the heating body in the vicinity of the vaporization chamber which is sufficient to ensure the vaporization of the water even when the ironing surface is at a minimum temperature allowing the ironing of delicate fabrics.
  • an object of the present invention is to provide a steam iron which overcomes these drawbacks and which has a structure which is simple and economical to produce.
  • the documents FR1424320A , EP0380896 A1 and EP1772551 A1 disclose steam irons.
  • the subject of the invention is a steam iron comprising a heating body comprising a vaporization chamber and an ironing surface in thermal relationship with the heating body, the ironing surface being intended to come into contact with the linen to be ironed and being advantageously provided with steam outlet holes, the heat produced by the heating body being transmitted to the ironing surface by conduction through at least two elements of the iron placed one against the other , characterized in that the two elements are in direct contact with each other at at least one point of contact having a contact surface of less than 2 mm 2 and preferably less than 1 mm 2 .
  • two elements of the iron placed against each other is meant two constituent elements of the iron which have been manufactured independently of each other and then placed against each other during assembly iron.
  • Such a characteristic makes it possible to locally establish a point of contact diffusing little energy by thermal conduction while ensuring a mechanical link between the two elements.
  • the two elements are in direct contact with each other at several contact points, all the contact points having a contact surface of less than 2 mm 2 and preferably less at 1 mm 2 .
  • Such a characteristic makes it possible to distribute the thermal diffusion by conduction between the two elements at several contact points with low thermal diffusivity for a more homogeneous distribution of the heat and better mechanical strength between the two elements.
  • the iron comprises at least 3 contact points and preferably between 10 and 30 contact points between the two elements.
  • the contact points are located at the end of protuberances projecting from a surface of at least one of the elements.
  • the protrusions are obtained by a stamping process.
  • the protrusion(s) protrude over a height greater than 0.3 mm and advantageously between 0.4 mm and 0.8 mm.
  • Such a height makes it possible to provide a space having a height between the two elements which makes it possible to limit thermal diffusion by radiation.
  • a steam distribution chamber is arranged between the two elements.
  • Such a feature makes it possible to take advantage of the space provided between the two elements to circulate the steam and distribute it over the entire surface of the elements.
  • a seal is arranged between the two elements at the periphery of the distribution chamber.
  • the sole comprises a plate which is fitted against the heating body, the said point(s) of contact being located at the interface between the heating body and the plate.
  • the heating body and the plate constitute the two elements of the iron which are placed one against the other and have points of contact of small surface area.
  • the contact points are distributed along the periphery of the ironing surface.
  • the plate is made of aluminum.
  • the iron comprises a cap, advantageously made of stainless steel, which is attached to the plate, the ironing surface being supported by the cap.
  • Such a characteristic makes it possible to combine both good temperature homogeneity at the level of the ironing surface thanks to the good thermal diffusion taking place through the aluminum plate and good scratch resistance of the ironing surface when the cap is made of a scratch-resistant material such as stainless steel.
  • the plate is fixed to the heating body by means of screws, the cover being fixed to the plate by flapping the edges of the cover over the edges of the plate.
  • the heating body is a foundry containing an electrical resistor.
  • the electric resistor is the only heating element of the iron.
  • the figure 1 represents an iron comprising a casing 1 made of plastic material comprising a handle and a heel on which the iron can rest vertically.
  • the box 1 contains, in a manner known per se, a reservoir provided with a filling orifice 10 and comprises a cord 11 for the electrical supply of the iron using a 220V domestic network.
  • the iron comprises a soleplate 2 comprising a heating body 3 made of molded aluminum including a tubular electric resistor 30 whose power can reach 2300 W and which is the only heating element of the iron.
  • the power supply to this electrical resistor 30 is regulated by means of a thermostat, not shown in the figures, which is fixed on a housing 31 made on an upper face of the heating body 3, the thermostat being advantageously set around a temperature set point of 165°C not modifiable by the user.
  • the upper face of the heating body 3 comprises projecting walls which define a vaporization chamber 32 supplied with water from the reservoir by a pump or a drip valve, not shown in the figures, and channels 33 for distributing vapor extending along the periphery of the vaporization chamber 32, these channels 33 meeting at the level of the front end of the heating body 3.
  • Channels 33 include passages 33A passing through heating body 3 and opening into a cavity provided on the underside of heating body 3 forming a steam distribution chamber 34 .
  • the sole 2 comprises, under the heating body 3, an intermediate plate 4, advantageously made of aluminum, the upper face of which comes into contact with the heating body 3 and defines a wall for delimiting the distribution chamber 34 of steam.
  • the sole 2 also comprises a metal cap 5, advantageously made of stainless steel, which is fitted against the underside of the plate 4, the metal cap 5 coming into direct contact with the plate 4 and being advantageously fixed to the latter by folding the edge peripheral of the cap 5 around the peripheral edge of the plate 4.
  • the cap 5 comprises, in a manner known per se, a flat lower surface which defines an ironing surface 52 intended to come into contact with the laundry to be ironed.
  • This ironing surface 52 is advantageously provided with more than two hundred steam outlet holes 50 having a passage section of less than 4 mm 2 , as described in more detail in the patent application EP 1 772 551 filed by the plaintiff.
  • the steam outlet holes 50 are advantageously distributed according to a first and a second network of steam outlet holes 50 separated from each other by a middle zone 51 devoid of steam outlet holes.
  • the plate 4 comprises several bosses 40 in relief, the upper ends of which form points of contact 40A between the plate 4 and the heating body 3, the heating body 3 comprising, opposite each of these bosses, a stop 35 provided with a flat surface against which the boss 40 comes to rest when the plate 4 is assembled against the heating body 3.
  • bosses 40 are preferably produced by a process of stamping the plate 4 and have a substantially spherical upper surface.
  • Each boss 40 advantageously protrudes over a height of the order of 0.6 mm relative to the upper surface of the plate 4.
  • a silicone seal 6, illustrated on the figure 5 and 7 is interposed between the plate 4 and the heating body 3 over the entire periphery of the distribution chamber 34 to ensure the seal against steam, this silicone gasket 6 also having a thickness of 0.6 mm.
  • each boss 40 forms a contact point 40A which has a contact surface of less than 2 mm 2 and preferably less than 1 mm 2 .
  • the plate 4 has a thickness of the order of 2 mm and comprises seventeen bosses 40 distributed over the periphery of the plate 4, the bosses 40 having a contact surface with the stops 35 consisting of a circular surface with a diameter of the order of 1 mm.
  • the contact surfaces of the bosses 40 are the only zones where the plate 4 is directly in contact with the heating body 3 so that the heat transfer by conduction between the heating body 3 and the plate 4 takes place only by these bosses 40.
  • the plate 4 is fixed against the heating body 3 by three screws 7, visible on the figure 5 , one of the screws 7 being placed close to a front point of the sole 2 and the two other screws being placed symmetrically on the edge of the plate 4 in the rear part of the sole 2.
  • the plate 4 is not in direct contact with the heating body 3 at the level of the screws 7 in order to limit the heat transfer by conduction in this zone.
  • the heating body 3 also comprises ribs 36, 37 which protrude into the steam distribution chamber 34, these ribs 36, 37 being located in a middle zone of the soleplate 2 and coming opposite a middle zone 41 of the plate 4 devoid of opening.
  • the height of these ribs 36, 37 is adapted so that they do not come into direct contact with the plate 4 when the plate 4 is assembled on the heating body 3 with the bosses 40 resting against the stops 35, a silicone seal , not shown in the figures, filling the resulting space between the ribs 36, 37 and the plate 4 to provide a mechanical connection between the plate 4 on the heating body 3, in addition to the fixing screws.
  • the ribs 36, 37 are constituted by a first rib 36 having a general U-shape and by a second rib 37 having a general V-shape, each of these ribs 36, 37 having a groove forming a cavity into which the silicone seal is injected, this seal covering the ribs 36, 37 over a height of 0.5 mm to come into contact with the plate 4 and contribute to the fixing of the latter.
  • the plate 4 comprises, on either side of the central zone 41, openings 42, 43 allowing the vapor to be diffused from the distribution chamber 34 towards the cap 5, the cap 5 comprising, facing each opening 42, 43 at least one steam outlet hole 50 .
  • most of the openings 42 of the plate 4 have a diameter corresponding substantially to the diameter of the steam outlet hole 50 of the cap 5 coming opposite so that the plate 4 is in direct contact of the cap 5 in the vicinity of the steam outlet holes 50 and can transmit heat by conduction in this zone.
  • the plate 4 may however have a larger surface to locally limit heat transfer by conduction.
  • the plate 4 comprises three larger openings 43 located respectively close to the front tip, in the central zone of the sole 2 and close to the rear part of the plate 4, each of these openings supplying several steam outlet holes of the cap 5.
  • the iron thus produced has the advantage of having a cap 5 provided with an ironing surface which has a relatively homogeneous temperature of the order of 140° C. when the vaporization chamber 32 is at a temperature of the order 165°C to produce a continuous steam flow of the order of 35 g/min.
  • the heat transfer by conduction between the heating body 3 and the plate 4 is limited only to the contact points 40A located at the end of the bosses 40, the latter having a very reduced, the rest of the heat transfer taking place by radiation through the distribution chamber 34.
  • the large number of contact points 40A and their small contact surface makes it possible to have excellent control of the heat flow established by conduction between the body heater 3 and the plate 4.
  • the large number of contact points 40A also makes it possible to obtain good control of the distance separating the bottom of the cavity forming the distribution chamber 34 and the plate 4, which makes it possible to to have an excellent control of the heat flow established by radiation between the heating body 3 and the plate 4 .
  • contact points 40A carried by bosses 40 produced by stamping on plate 4, have the advantage of being very economical to produce. They also have the advantage of being very compact, making it possible to obtain a very compact sole 2 construction.
  • the presence of the aluminum plate 4, which has a high thermal conductivity, also makes it possible to contribute to improving the uniformity of the temperature at the level of the ironing surface. Indeed, if a temperature gradient appears between different points of the plate 4, this is quickly attenuated by the heat transfer which is then established in the thickness of the plate 4.
  • An iron is thus obtained having a compact construction and economical to implement and having a temperature at the level of the ironing surface that is substantially constant, around 140° C., for ironing all types of textiles without damaging them.
  • such a construction makes it possible to maintain the temperature of the heating body in the immediate vicinity of the vaporization chamber around 165° C. which makes it possible to produce a continuous steam despite of the order of 35 g/min sufficient to ensure high ironing efficiency.
  • bosses in relief could be made by molding, the latter being able to be made on the heating body rather than on the plate.
  • the aluminum plate/stainless steel cap assembly may be replaced by a single aluminum plate, the underside of which directly constitutes the ironing surface.
  • the iron may comprise a heating element whose power is limited to 1600 W when the voltage of the domestic electrical network is of the order of 120 V.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
EP16170011.7A 2016-05-17 2016-05-17 Fer a repasser a vapeur comportant un corps chauffant muni d'une chambre de vaporisation et une surface de repassage en relation thermique avec le corps chauffant Active EP3246459B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES16170011T ES2927039T3 (es) 2016-05-17 2016-05-17 Plancha de vapor que comprende un cuerpo calefactor provisto de una cámara de vaporización y una superficie de planchado en relación térmica con el cuerpo calefactor
EP16170011.7A EP3246459B1 (fr) 2016-05-17 2016-05-17 Fer a repasser a vapeur comportant un corps chauffant muni d'une chambre de vaporisation et une surface de repassage en relation thermique avec le corps chauffant
CN201710320473.3A CN107385846B (zh) 2016-05-17 2017-05-09 包括配备有蒸发室的加热体以及与加热体热连接的熨烫表面的蒸汽式熨斗
US15/596,662 US10358764B2 (en) 2016-05-17 2017-05-16 Steam iron comprising a heating body provided with a steam chamber and an ironing surface thermally connected to the heating body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16170011.7A EP3246459B1 (fr) 2016-05-17 2016-05-17 Fer a repasser a vapeur comportant un corps chauffant muni d'une chambre de vaporisation et une surface de repassage en relation thermique avec le corps chauffant

Publications (2)

Publication Number Publication Date
EP3246459A1 EP3246459A1 (fr) 2017-11-22
EP3246459B1 true EP3246459B1 (fr) 2022-09-14

Family

ID=56008559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16170011.7A Active EP3246459B1 (fr) 2016-05-17 2016-05-17 Fer a repasser a vapeur comportant un corps chauffant muni d'une chambre de vaporisation et une surface de repassage en relation thermique avec le corps chauffant

Country Status (4)

Country Link
US (1) US10358764B2 (zh)
EP (1) EP3246459B1 (zh)
CN (1) CN107385846B (zh)
ES (1) ES2927039T3 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD930925S1 (en) 2020-03-04 2021-09-14 Conair Corporation Garment steamer
US11261561B2 (en) 2020-03-04 2022-03-01 Conair Llc Garment steaming device
US11306429B2 (en) 2020-03-04 2022-04-19 Conair Llc Garment steaming device
US11629453B2 (en) 2020-03-04 2023-04-18 Conair Llc Garment steaming device
US11505893B2 (en) 2020-03-04 2022-11-22 Conair Llc Garment steaming device
CN113106719B (zh) * 2021-05-25 2022-07-12 宁波凯波集团有限公司 蒸汽熨烫底板组件及蒸汽熨烫设备
CN113106718B (zh) * 2021-05-25 2022-07-12 宁波凯波集团有限公司 蒸汽熨烫底板组件及蒸汽熨烫设备

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2299202A (en) * 1941-08-26 1942-10-20 American Plush & Velvet Pressb Shoe for steam pressing irons
US2880530A (en) * 1954-04-27 1959-04-07 Dormeyer Corp Electric iron
FR1424320A (fr) * 1964-02-11 1966-01-07 Philips Nv Appareil chauffé électriquement, en particulier fer à repasser
US3192654A (en) * 1964-03-31 1965-07-06 John S Weaver Ball bearing soleplate for iron
US3721026A (en) * 1971-08-02 1973-03-20 Nat Appliance Ind Inc Apparatus for dry cleaning and pressing
US4642922A (en) * 1985-12-06 1987-02-17 D.M.D.S.R.L. Removable steam iron sole plate
FR2606043B1 (fr) * 1986-10-31 1988-12-30 Seb Sa Fer a repasser a vapeur
FR2628283B1 (fr) * 1988-03-02 1996-04-19 Seb Sa Composant chauffant plat a element chauffant electriquement resistant et son procede de fabrication
FR2641291B1 (zh) * 1989-01-04 1991-03-22 Seb Sa
FR2711996B1 (fr) * 1993-11-03 1995-12-15 Seb Sa Fer à repasser électrique comportant une semelle de repassage à faible inertie thermique.
FR2798403B1 (fr) 1999-09-09 2001-10-19 Seb Sa Fer a vapeur tous tissus a un seul element chauffant
FR2891846B1 (fr) 2005-10-06 2007-12-14 Rowenta Werke Gmbh Ges Mit Bes Fer a repasser comprenant une semelle comportant un reseau de trous de sortie de vapeur particulier
RU2423569C2 (ru) * 2006-02-23 2011-07-10 Конинклейке Филипс Электроникс Н.В. Гладильная прокладка
US7610701B2 (en) * 2007-02-12 2009-11-03 Applica Consumer Products, Inc. Iron with actively cooled soleplate
CN202116906U (zh) * 2011-04-29 2012-01-18 深圳市强博金机电有限公司 一种节能环保的挂烫机熨头
DE202013012578U1 (de) * 2013-01-02 2017-08-03 Koninklijke Philips N.V. Kleidungsstückbedampfungsvorrichtung
CN203174395U (zh) * 2013-03-18 2013-09-04 浙江月立电器有限公司 一种蒸汽电熨斗
CN104120598A (zh) * 2014-08-07 2014-10-29 广东新宝电器股份有限公司 蒸汽电烫斗

Also Published As

Publication number Publication date
ES2927039T3 (es) 2022-11-02
US20170335506A1 (en) 2017-11-23
CN107385846B (zh) 2021-12-28
EP3246459A1 (fr) 2017-11-22
US10358764B2 (en) 2019-07-23
CN107385846A (zh) 2017-11-24

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