EP3757281B1 - Iron fitted with a steam chamber provided with two electrical heating resistors - Google Patents

Iron fitted with a steam chamber provided with two electrical heating resistors Download PDF

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Publication number
EP3757281B1
EP3757281B1 EP20181697.2A EP20181697A EP3757281B1 EP 3757281 B1 EP3757281 B1 EP 3757281B1 EP 20181697 A EP20181697 A EP 20181697A EP 3757281 B1 EP3757281 B1 EP 3757281B1
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EP
European Patent Office
Prior art keywords
iron
heating resistor
electrical heating
electrical
water
Prior art date
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Application number
EP20181697.2A
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German (de)
French (fr)
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EP3757281A1 (en
Inventor
Frédéric COLLET
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SEB SA
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SEB SA
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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
    • D06F75/24—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
    • D06F75/24—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat
    • D06F75/243—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat using other than ohmic-resistance heating means, e.g. electrolytic or induction heating
    • 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
    • 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
    • D06F75/16—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 reservoir being heated to produce the steam
    • 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

Definitions

  • the present invention relates to the field of ironing appliances, and in particular ironing appliances comprising irons equipped with a vaporization chamber.
  • An iron having the characteristics of the preamble of claim 1 is known under the number GB 2 437 283 A .
  • such an iron has the disadvantage of comprising a vaporization chamber of small surface area, which matches the U-shape of the two electrical heating resistors arranged in parallel, so that the exchange surface becomes insufficient to vaporize the injected water. in the vaporization chamber, without risking the projection of water droplets on the linen to be ironed, when the injected water flow becomes high.
  • a small-volume vaporization chamber can quickly become clogged with scale when the flow rate of steam generated becomes high.
  • the present invention aims to remedy all or part of these drawbacks.
  • the technical problem at the basis of the invention consists in particular in providing an iron comprising a vaporization chamber which may have a large volume and which makes it possible to produce a high rate of steam, while avoiding the projection of water droplets on the ironing linen.
  • the present invention relates to an iron comprising an ironing sole comprising at least one steam outlet orifice and a heating body comprising a vaporization chamber connected by a steam distribution circuit to the at least one orifice vapor outlet, the vaporization chamber having a bottom wall comprising a water injection zone into which water is intended to be injected to produce steam, the heating body comprising a first electrical resistance heater s extending in a first zone of the bottom wall and a second electric heating resistance extending in a second zone of the bottom wall, the first electric heating resistance having a curved portion extending between two connection ends for its supply electric heater and the second electric heating resistor having a curved portion extending between two connection ends for s an electrical power supply, characterized in that the first electrical heating resistor and the second electrical heating resistor are arranged head to tail, the curved portions of the first and second electrical resistors being arranged opposite one another.
  • Such a configuration of the electrical resistances makes it possible to independently heat two vaporization zones of the vaporization chamber which can be distant from each other allowing to have a vaporization chamber having a large surface with a good homogeneity of the temperature of the bottom wall of the vaporization chamber.
  • the vaporization chamber can be supplied with a large flow of water while limiting the risk of puddle formation due to insufficient temperature in a zone of the bottom wall of the vaporization chamber and therefore the risk of projection of water droplets on the linen to be ironed.
  • the iron according to the present invention therefore has improved ironing efficiency.
  • the iron may additionally have one or more of the following characteristics, taken alone or in combination.
  • the iron comprises a regulating device configured to independently regulate the electrical power supply of the first electrical heating resistance from the electrical power supply of the second electrical heating resistance.
  • connection ends of the first electric heating resistance protrude outside the heating body on the side of a rear end of the heating body and the connection ends of the second electric heating resistance projecting outside the heating body on the side of a front end of the heating body.
  • the iron comprises a regulating device configured to regulate the electrical supply of the second electric heating resistor by means of a thermostat mounted on a regulating stud located at the level of a rear portion of the vaporization chamber and to regulate the electrical power supply of the first electric heating resistor by means of an additional thermostat mounted on an additional regulation stud located at the level of a front portion of the vaporization chamber .
  • the first electric heating resistance extends at the periphery of the bottom wall and the second electric heating resistance extends under the bottom wall.
  • the curved portion of the first electric heating resistor is arranged vertically to the additional regulation stud when the ironing surface rests on a horizontal plane support.
  • the first electric heating resistor comprises a first branch extending close to a first lateral portion of the vaporization chamber, and a second branch extending close to a second side portion of the vaporization chamber which is opposite to the first side portion.
  • the second electric heating resistance extends inside the first and second branches of the first electric heating resistance.
  • the first and second electric heating resistors have a combined power greater than 2400 W.
  • the first electric heating resistor and/or the second electric heating resistor have a general U, V or ⁇ shape.
  • the curved portion of the first electrical resistor is located at a front part of the vaporization chamber.
  • the curved portion of the second electrical resistor is located at a rear part of the vaporization chamber.
  • the first electric heating resistance extends in a first plane of extension and the second electric heating resistance extends in a second plane of extension which is substantially parallel to the first plane of extension. 'extension.
  • the first electric heating resistance is located above the second electric heating resistance when the ironing surface rests on a flat support horizontal.
  • the first electric heating resistance is located at a higher altitude than the second electric heating resistance when the ironing surface rests on a horizontal plane support.
  • the heating body comprises a foundry delimiting at least in part the vaporization chamber.
  • the first and second electric heating resistances are integrated in the foundry.
  • the heating body comprises a closing plate which rests on the foundry, the vaporization chamber being delimited by the foundry and the closing plate.
  • the vaporization chamber is delimited laterally by a peripheral wall comprising a connection opening through which the steam escapes from the vaporization chamber to travel into a scale recovery cavity. including a scale collection container.
  • the bottom wall comprises an intermediate zone extending between the first and second zones, the water injection zone of the bottom wall comprising a surface configured to channel the water flowing over the water injection zone towards the intermediate zone when the iron is lying flat on the ironing soleplate.
  • the electrical supply of the second electric heating resistor is regulated by means of a thermostat mounted on a regulation pad placed on the flow path of the flow of water injected on the bottom wall from the water injection zone.
  • the regulation stud deflects the flow towards two lateral flow paths arranged on either side of the regulation stud.
  • the regulation pad is located at a rear portion of the vaporization chamber.
  • the curved portion of the second electric heating resistor is arranged vertically to the regulation pad when the ironing surface rests on a horizontal plane support.
  • each of the lateral flow paths is inclined towards the rear of the vaporization chamber.
  • the intermediate zone comprises at least one cavity for retaining a volume of water.
  • the bottom wall comprises a barrier wall which delimits a downstream end of the retention cavity.
  • the retention cavity is arranged at the foot of the regulation stud.
  • the bottom wall comprises two retention cavities, the retention cavities being arranged on both sides of the regulation pad.
  • the retention cavity is arranged above at least a portion of the second electric heating resistor when the iron rests flat on the ironing soleplate.
  • the regulation pad is arranged in the vicinity of the curved portion of the second electric heating resistor.
  • the regulation pad is placed in the vicinity of one of the branches of the first electric heating resistor.
  • the bottom wall comprises a curved surface configured to channel the water flowing over the curved surface in the direction of the intermediate zone.
  • the curved surface comprises a first portion of wall inclined towards a first side edge of the bottom wall, a second portion of wall inclined towards a second side edge of the bottom wall, and a longitudinal ridge connecting the first and second wall portions.
  • the longitudinal ridge may, for example, extend in the median longitudinal plane of the iron, and may, for example, have a rounded cross section.
  • the heating body comprises a water injection opening opening into a front part of the vaporization chamber, and for example close to the front end of the bottom wall.
  • the water injection opening is located above the curved surface.
  • the bottom wall has a top located substantially below the water injection opening.
  • the bottom wall of the vaporization chamber generally has a quadrilateral shape.
  • the second electric heating resistor extends to the periphery of the curved surface.
  • the second electric heating resistor comprises a first branch extending close to a first lateral edge of the curved surface, and a second branch extending close to a second side edge of the domed surface which is opposite the first side edge.
  • the water injection opening opens above a zone located between the branches of the second electrical resistance.
  • the steam distribution circuit comprises a scale recovery cavity, the iron comprising a scale recovery container which is placed in the scale recovery cavity.
  • the scale collection container is configured to collect scale particles from the vaporization chamber.
  • the scale recovery container is removable.
  • the scale recovery cavity is arranged at the rear of the vaporization chamber.
  • the scale recovery cavity comprises an evacuation orifice closed by a removable plug which is accessible from outside the iron.
  • the discharge orifice is arranged at the rear of the iron.
  • the scale recovery container is secured to the removable plug.
  • the scale recovery cavity is connected to the vaporization chamber by the connection opening opening out into the rear end of the vaporization chamber.
  • the scale recovery container comprises a filtration element comprising passage openings configured to retain scale particles entrained by the steam flowing in the steam distribution circuit.
  • each of the passage openings has a dimension of between 0.05 mm and 0.5 mm.
  • the steam distribution circuit comprises at least one exhaust channel opening into the scale recovery cavity, the at least one exhaust channel being fluidly connected to the au least one steam outlet.
  • the at least one exhaust channel is located downstream of the filtration element.
  • the steam distribution circuit comprises two exhaust channels located respectively on each side of the connecting opening.
  • the steam distribution circuit comprises a distribution chamber arranged under the heating body, the steam distribution chamber fluidically connecting the at least one exhaust channel to the at least a steam outlet.
  • the thermostat and the additional thermostat are produced respectively by a temperature sensor and an additional temperature sensor connected to a microcontroller.
  • the present invention further relates to an ironing appliance comprising an iron according to the invention, a water tank and a supply circuit fluidically connected to the water tank and configured to supply water to the vaporization chamber.
  • the supply circuit comprises a conduit for conveying water fluidly connecting the water reservoir to the vaporization chamber.
  • the ironing appliance comprises a base on which the iron is placed during inactive ironing phases.
  • the base encloses the water reservoir.
  • the supply circuit comprises a supply pump configured to supply the vaporization chamber with water coming from the water reservoir.
  • the feed pump is integrated into the base.
  • the figures 1 to 9 represent an ironing appliance 2 which comprises an iron 3 and a base 4 on which the iron 3 can be placed during inactive ironing phases.
  • the ironing appliance 2 further comprises a water reservoir 5 integrated into the base 4 and which can for example be removable, and a power supply circuit connected fluidically to the water reservoir 5.
  • the supply circuit comprises in particular a water conveying conduit 6 fluidly connecting the water reservoir 5 to the iron 3, and a supply pump (not visible in the figures ) integrated in the base 4 and configured to supply the iron 3 with water from the water tank 5.
  • the iron 3 comprises a housing 7 comprising a gripping part 8 at its upper end, and an ironing soleplate 9 provided with a substantially flat ironing surface 11 and with a plurality of steam outlet orifices 12 emerging in the ironing surface 11.
  • the iron 3 also comprises a heating body 13 integrated into the lower part of the case 7, and thermally and mechanically linked to the ironing soleplate 9.
  • the heating body 13 comprises a foundry 14, for example aluminum, and a plate closure 15 which rests on the foundry 14.
  • the heating body 13 also comprises a vaporization chamber 16, of the instantaneous vaporization type, delimited by the casting 14 and the closure plate 15.
  • the casting 14 more particularly comprises a peripheral wall 17 laterally delimiting the vaporization chamber 16.
  • the vaporization chamber 16 is at least partly, and for example substantially entirely, internally coated with an anti-calefaction coating.
  • the heating body 13 further comprises a first electric heating resistor 18 and a second electric heating resistor 19 which are integrated in the foundry 14.
  • the first electric heating resistor 18 and the second electric heating resistor 19 have a general U-shape. , V or ⁇ .
  • the first and second electric heating resistances 18, 19 are more particularly visible on the figure 10 where they are represented separately.
  • the first electric heating resistor 18 comprises a first branch 18.1, extending close to a first lateral portion of the vaporization chamber 16, and a second branch 18.2, extending close to a second lateral portion of the vaporization chamber 16, the first and second branches 18.1, 18.2 being interconnected by a curved connecting portion 18.3.
  • the second electric heating resistance 19 extends inside the first and second branches 18.1, 18.2 of the first electric heating resistance 18.
  • the second electric heating resistance 19 also has a first branch 19.1 extending close to a first lateral portion of the vaporization chamber 16, and a second branch 19.2, extending close to a second lateral portion of the vaporization chamber 16, the first and second branches 19.1, 19.2 being interconnected by a connecting portion curve 19.3.
  • the first electric heating resistor 18 and the second electric heating resistor 19 are arranged head to tail.
  • the first electric heating resistor 18 comprises two connection ends 18A, 18B projecting outside the foundry 14 on the side of the rear end of the heating body 13
  • the second electric heating resistor 19 comprises two connection ends 19A, 19B protruding outside the foundry on the side of the front end of the heating body 13.
  • the first and second electrical heating resistors 18, 19 have a combined power greater than 2400W.
  • the first electrical heating resistor 18 may have an electrical power of the order of 2000W and the second electrical heating resistor 19 may have an electrical power of the order of 1000W, such a power distribution making it possible to balance the power density in view of the respective length of the two electric heating resistors to reach a total of 3000W.
  • the first electric heating resistance 18 extends in a first plane of extension and the second electric heating resistance 19 extends in a second plane of extension which is substantially parallel to the first plane of extension and preferably substantially parallel to the plane of the ironing surface 11.
  • the first electric heating resistance 18 is located at a higher altitude than the second electric heating resistance 19 when the ironing surface 11 rests on a horizontal plane support.
  • the vaporization chamber 16 comprises a bottom wall 21, over which water is intended to flow to produce steam, which advantageously has a multitude of pyramidal studs which protrude from the bottom wall 21 in order to increase the heat exchange surface.
  • the bottom wall 21 has the overall shape of a quadrilateral and advantageously comprises a curved surface 22 located in a central longitudinal zone of the bottom wall 21.
  • the curved surface 22 is more particularly curved in a transverse direction D1 which extends transversely to the longitudinal direction D2 of the iron 3.
  • the curved surface 22 is arranged symmetrically with respect to a median longitudinal plane of the iron 3, and comprises a first wall portion 22.1 inclined in the direction of a first lateral edge of the wall bottom 21, a second wall portion 22.2 inclined towards a second side edge of the bottom wall 21, and a longitudinal ridge 22.3 connecting the first and second wall portions 22.1, 22.2.
  • the longitudinal ridge 22.3 can for example extend in the median longitudinal plane of the iron 3, and can for example have a rounded cross section.
  • the first electric heating resistance 18 extends in a first zone of the bottom wall 21 located at the periphery of the bottom wall 21, while the second electric heating resistance 19 extends in a second zone of the wall bottom 21 located at the periphery of the curved surface 22.
  • the first electric heating resistance 18 extends to the periphery of the bottom wall 21, and the second electric heating resistance 19 extends to the periphery of the curved surface 22.
  • the bottom wall 21 further comprises an intermediate zone 23 extending between the first and second zones of the bottom wall 21, and therefore between the curved surface 22 and the periphery of the bottom wall 21.
  • the intermediate zone 23 comprises more particularly two lateral flow paths 23.1, 23.2 extending between the first and second electric heating resistors, each of the lateral flow paths being inclined towards the rear of the vaporization chamber 16 and the curved surface 22 being configured to channeling the water flowing over the curved surface 22 in the direction of the two lateral flow paths 23.1, 23.2.
  • the heating body 13 further comprises a regulation stud 24 located between the two lateral flow paths 23.1, 23.2, at the level of the rear end of the vaporization chamber 16, each of the lateral flow paths 23.1, 23.2 being inclined towards the rear of the vaporization chamber 16, that is to say towards the regulation stud 24.
  • the two lateral flow paths 23.1, 23.2 are advantageously located below the contour of the curved surface 22 at the level of the rear part of the vaporization chamber 16, so that a step results between the bottom of the two lateral flow paths 23.1, 23.2 and the contour of the curved surface 22.
  • the rear end of the vaporization chamber 16 comprises two dam walls 20 which protrude transversely from the bottom wall 21 of the vaporization chamber 16, between the regulation pad 24 and the peripheral wall 17, the two dam walls 20 retaining the water flowing along summer paths side flow 23.1, 23.2 thus forming a retention cavity 27 upstream of the dam wall 20.
  • the regulating stud 24 is formed by the foundry 14 and is located at a rear portion of the curved surface 22, the upper end of the regulating stud extending through the closing plate 15.
  • the iron 3 comprises a thermostat (not shown) mounted on the regulation stud 24, and the bottom wall 21 is configured to channel the water flowing over the bottom wall 21 by direction of the regulation stud 24 and of the intermediate zone 23.
  • the heating body 13 also comprises an additional regulation pad 26 located at a front part of the vaporization chamber 16.
  • the additional regulation pad 26 is located vertically above the curved end of the first resistor electrical heater 18 and the regulation pad 24 is located above the curved end of the second electrical heating resistor 19.
  • the additional regulation pad 26 is formed by the foundry 14 and extends through the closure plate 15.
  • the iron 3 comprises an additional thermostat (not shown) mounted on the additional regulation pad 26.
  • the iron 3 advantageously includes a microcontroller-type regulating device (not shown in the figures) configured to regulate the electrical supply to the first electric heating resistor 18 by means of the additional thermostat mounted on the additional regulating pad 26 located at the front of the vaporization chamber 16 and to regulate the electrical supply of the second electric heating resistance 19 by means of the thermostat mounted on the regulation pad 24 located at the rear of the vaporization chamber 16.
  • a microcontroller-type regulating device (not shown in the figures) configured to regulate the electrical supply to the first electric heating resistor 18 by means of the additional thermostat mounted on the additional regulating pad 26 located at the front of the vaporization chamber 16 and to regulate the electrical supply of the second electric heating resistance 19 by means of the thermostat mounted on the regulation pad 24 located at the rear of the vaporization chamber 16.
  • the heating body 13 further comprises a water injection opening 28 fluidly connected to the feed pump and opening into a front part of the vaporization chamber 16, and for example near the front end of the wall. bottom 21.
  • the supply pump is thus configured to supply the vaporization chamber 16 with water coming from the water tank 5 with a pressure greater than 500 Pa, the assembly being adapted to allow the production of a flow rate of steam greater than 60 gr/min according to the standardized cycle of 5 sec of vaporization followed by 15 sec of stoppage
  • the water injection opening 28 is provided on the closure plate 15, and opens into the vaporization chamber 16 above a water injection zone located close to the front end of the bottom wall 21, and between the branches of the second electric heating resistor 19.
  • the bottom wall 21 has a top located substantially below the water injection opening 28.
  • the iron 3 further comprises a steam distribution circuit 29 defined by the foundry 14 and the closure plate 15, and fluidly connecting the vaporization chamber 16 to the steam outlet orifices 12, and this in such a way that the steam generated in the vaporization chamber 16 can flow to the steam outlets 12.
  • the steam distribution circuit 29 comprises in particular a scale recovery cavity 31 comprising an evacuation orifice 32 closed by a removable plug 33 which is accessible from outside the iron 3.
  • the orifice of evacuation 32 opens into a rear surface of the housing 7 of the iron 3.
  • the scale recovery cavity 31 is arranged at the rear of the vaporization chamber 16, and is connected to the vaporization chamber 16 by a connection opening 34 opening out into the rear end of the vaporization chamber 16.
  • the cavity scale recovery 31 is advantageously located in a part of the housing 7 which is cantilevered behind the ironing soleplate 9 when the iron 3 rests on the ironing soleplate 9.
  • the iron 3 further comprises a scale collection container 35 which is mounted, for example in a removable manner, in the scale collection cavity 31.
  • the scale collection container 35 is configured to collect particles of scale from of the vaporization chamber 16. These scale particles can fall by gravity from the vaporization chamber 16 when the ironing soleplate 9 is inclined with respect to the horizontal, and for example when the iron 3 rests on the base 4 , and can also be entrained by the steam coming from the vaporization chamber 16.
  • the scale recovery container 35 is integral with the removable plug 33.
  • the scale recovery container 35 may optionally include a filtration element having passage openings configured to retain scale particles entrained by the steam flowing in the circuit. steam distribution.
  • each of the passage openings has a dimension of between 0.05 mm and 0.5 mm.
  • the steam distribution circuit 29 comprises two exhaust channels 25, visible on the figure 8 , arranged symmetrically on either side of the connecting opening 34, these two exhaust channels 25 connecting the scale recovery cavity 31 with a steam distribution chamber provided under the heating body 13 in order to supply the steam outlet holes 11 of the ironing soleplate 9.
  • the unvaporized water then spreads, in the form of a puddle of water, along the two lateral flow paths 23.1, 23.2 and towards the rear of the vaporization chamber 16, under the combined effect in particular of gravity (the lateral flow paths are inclined towards the rear ) and drag forces related to the flow of vapor which escapes towards the connecting opening 34.
  • the scale particles formed in the vaporization chamber 16 are entrained, both by the displacement of the puddle of water towards the rear of the vaporization chamber 16 and by the flow of steam under the effect of the drag forces, in the direction of the connecting opening 34 and the scale collection container 35.
  • the scale particles are thus collected by the scale collection container 35.
  • the water may be injected into the vaporization chamber by a drip valve fed by gravity with water coming from a reservoir rather than by a pump.

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

Description

Domaine techniqueTechnical area

La présente invention concerne le domaine des appareils de repassage, et en particulier des appareils de repassage comprenant des fers à repasser équipés de chambre de vaporisation.The present invention relates to the field of ironing appliances, and in particular ironing appliances comprising irons equipped with a vaporization chamber.

Etat de la techniqueState of the art

Un fer à repasser présentant les caractéristiques du préambule de la revendication 1 est connu sous le numéro GB 2 437 283 A .An iron having the characteristics of the preamble of claim 1 is known under the number GB 2 437 283 A .

Il est connu du document EP3156538 , un fer à repasser comprenant :

  • un corps chauffant comportant une chambre de vaporisation présentant une paroi de fond qui est plane et sur laquelle de l'eau est destinée à s'écouler pour produire de la vapeur, le corps chauffant pouvant comprendre une première résistance électrique chauffante s'étendant à la périphérie de la paroi de fond et une deuxième résistance électrique chauffante située dans une zone centrale de la paroi de fond,
  • une semelle de repassage liée thermiquement et mécaniquement au corps chauffant, la semelle de repassage comportant une surface de repassage et au moins un orifice de sortie de vapeur débouchant dans la surface de repassage, la surface de repassage étant parallèle à la paroi de fond,
  • un circuit de distribution de vapeur reliant fluidiquement la chambre de vaporisation à l'au moins un orifice de sortie de vapeur et dans lequel est destinée à s'écouler la vapeur produite par la chambre de vaporisation.
It is known from the document EP3156538 , an iron comprising:
  • a heating body comprising a vaporization chamber having a bottom wall which is flat and over which water is intended to flow to produce steam, the heating body being able to comprise a first electric heating resistance extending at the periphery of the bottom wall and a second electric heating resistance located in a central zone of the bottom wall,
  • an ironing sole thermally and mechanically linked to the heating body, the ironing sole comprising an ironing surface and at least one steam outlet opening into the ironing surface, the ironing surface being parallel to the bottom wall,
  • a vapor distribution circuit fluidly connecting the vaporization chamber to the at least one vapor outlet orifice and in which the vapor produced by the vaporization chamber is intended to flow.

Cependant un tel fer à repasser présente l'inconvénient de comporter une chambre de vaporisation de faible surface, qui épouse la forme en U des deux résistances électriques chauffantes disposées parallèlement, de sorte que la surface d'échange devient insuffisante pour vaporiser l'eau injectée dans la chambre de vaporisation, sans risquer la projection de gouttelettes d'eau sur le linge à repasser, lorsque le débit d'eau injecté devient important. De plus une telle chambre de vaporisation de faible volume peut rapidement être encombrée par le tartre lorsque le débit de vapeur généré devient important.However, such an iron has the disadvantage of comprising a vaporization chamber of small surface area, which matches the U-shape of the two electrical heating resistors arranged in parallel, so that the exchange surface becomes insufficient to vaporize the injected water. in the vaporization chamber, without risking the projection of water droplets on the linen to be ironed, when the injected water flow becomes high. In addition, such a small-volume vaporization chamber can quickly become clogged with scale when the flow rate of steam generated becomes high.

Résumé de l'inventionSummary of the invention

La présente invention vise à remédier à tout ou partie de ces inconvénients.The present invention aims to remedy all or part of these drawbacks.

Le problème technique à la base de l'invention consiste notamment à fournir un fer à repasser comprenant une chambre de vaporisation pouvant présenter un volume important et permettant de produire un fort débit de vapeur, tout en évitant la projection de gouttelettes d'eau sur le linge à repasser.The technical problem at the basis of the invention consists in particular in providing an iron comprising a vaporization chamber which may have a large volume and which makes it possible to produce a high rate of steam, while avoiding the projection of water droplets on the ironing linen.

A cet effet, la présente invention concerne un fer à repasser comprenant une semelle de repassage comportant au moins un orifice de sortie de vapeur et un corps chauffant comportant une chambre de vaporisation reliée par un circuit de distribution de vapeur à l'au moins un orifice de sortie de vapeur, la chambre de vaporisation présentant une paroi de fond comprenant une zone d'injection d'eau sur laquelle de l'eau est destinée à être injectée pour produire de la vapeur, le corps chauffant comprenant une première résistance électrique chauffante s'étendant dans une première zone de la paroi de fond et une deuxième résistance électrique chauffante s'étendant dans une deuxième zone de la paroi de fond, la première résistance électrique chauffante présentant une portion courbe s'étendant entre deux extrémités de raccordement pour son alimentation électrique et la deuxième résistance électrique chauffante présentant une portion courbe s'étendant entre deux extrémités de raccordement pour son alimentation électrique, caractérisé en ce que la première résistance électrique chauffante et la deuxième résistance électrique chauffante sont disposées tête-bêche, les portions courbes des première et deuxième résistances électriques étant disposées à l'opposé l'une de l'autre.To this end, the present invention relates to an iron comprising an ironing sole comprising at least one steam outlet orifice and a heating body comprising a vaporization chamber connected by a steam distribution circuit to the at least one orifice vapor outlet, the vaporization chamber having a bottom wall comprising a water injection zone into which water is intended to be injected to produce steam, the heating body comprising a first electrical resistance heater s extending in a first zone of the bottom wall and a second electric heating resistance extending in a second zone of the bottom wall, the first electric heating resistance having a curved portion extending between two connection ends for its supply electric heater and the second electric heating resistor having a curved portion extending between two connection ends for s an electrical power supply, characterized in that the first electrical heating resistor and the second electrical heating resistor are arranged head to tail, the curved portions of the first and second electrical resistors being arranged opposite one another.

Une telle configuration des résistances électriques permet de chauffer indépendamment deux zones de vaporisation de la chambre de vaporisation qui peuvent être éloignées l'une de l'autre permettant d'avoir une chambre de vaporisation présentant une grande surface avec une bonne homogénéité de la température de la paroi de fond de la chambre de vaporisation.Such a configuration of the electrical resistances makes it possible to independently heat two vaporization zones of the vaporization chamber which can be distant from each other allowing to have a vaporization chamber having a large surface with a good homogeneity of the temperature of the bottom wall of the vaporization chamber.

Par conséquent, la chambre de vaporisation peut être alimentée avec un débit d'eau important tout en limitant le risque de formation de flaque d'eau du fait d'une température insuffisante dans une zone de la paroi de fond de la chambre de vaporisation et donc le risque de projection de gouttelettes d'eau sur le linge à repasser. Le fer à repasser selon la présente invention présente donc une efficacité de repassage améliorée.Consequently, the vaporization chamber can be supplied with a large flow of water while limiting the risk of puddle formation due to insufficient temperature in a zone of the bottom wall of the vaporization chamber and therefore the risk of projection of water droplets on the linen to be ironed. The iron according to the present invention therefore has improved ironing efficiency.

Le fer à repasser peut en outre présenter une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison.The iron may additionally have one or more of the following characteristics, taken alone or in combination.

Selon un mode de réalisation avantageux de l'invention, le fer à repasser comporte un dispositif de régulation configuré pour réguler indépendamment l'alimentation électrique de la première résistance électrique chauffante de l'alimentation électrique de la deuxième résistance électrique chauffante.According to an advantageous embodiment of the invention, the iron comprises a regulating device configured to independently regulate the electrical power supply of the first electrical heating resistance from the electrical power supply of the second electrical heating resistance.

Selon un mode de réalisation avantageux de l'invention, les extrémités de raccordement de la première résistance électrique chauffante font saillie en dehors du corps chauffant du côté d'une extrémité arrière du corps chauffant et les extrémités de raccordement de la deuxième résistance électrique chauffante font saillie en dehors du corps chauffant du côté d'une extrémité avant du corps chauffant.According to an advantageous embodiment of the invention, the connection ends of the first electric heating resistance protrude outside the heating body on the side of a rear end of the heating body and the connection ends of the second electric heating resistance projecting outside the heating body on the side of a front end of the heating body.

Selon un mode de réalisation avantageux de l'invention, le fer à repasser comporte un dispositif de régulation configuré pour réguler l'alimentation électrique de la deuxième résistance électrique chauffante au moyen d'un thermostat monté sur un plot de régulation situé au niveau d'une portion l'arrière de la chambre de vaporisation et pour réguler l'alimentation électrique de la première résistance électrique chauffante au moyen d'un thermostat additionnel monté sur un plot de régulation additionnel situé au niveau d'une portion avant de la chambre de vaporisation.According to an advantageous embodiment of the invention, the iron comprises a regulating device configured to regulate the electrical supply of the second electric heating resistor by means of a thermostat mounted on a regulating stud located at the level of a rear portion of the vaporization chamber and to regulate the electrical power supply of the first electric heating resistor by means of an additional thermostat mounted on an additional regulation stud located at the level of a front portion of the vaporization chamber .

Ces dispositions permettent de réguler au mieux la température dans la chambre de vaporisation et notamment de détecter la position d'une éventuelle flaque d'eau à l'avant ou à l'arrière de la chambre de vaporisation afin d'activer en conséquence la première ou la deuxième résistance électrique chauffante et de résorber cette flaque d'eau en chauffant prioritairement avec la zone arrière ou la zone avant de la chambre de vaporisation sans engendrer de surchauffe dans la zone où ne se situe pas la flaque.These provisions make it possible to better regulate the temperature in the vaporization chamber and in particular to detect the position of any puddle of water at the front or at the rear of the vaporization chamber in order to activate the first or the second electric heating resistor and to absorb this puddle of water by heating primarily with the rear zone or the front zone of the vaporization chamber without generating overheating in the zone where the puddle is not located.

Selon un mode de réalisation avantageux de l'invention, la première résistance électrique chauffante s'étend à la périphérie de la paroi de fond et la deuxième résistance électrique chauffante s'étend sous la paroi de fond.According to an advantageous embodiment of the invention, the first electric heating resistance extends at the periphery of the bottom wall and the second electric heating resistance extends under the bottom wall.

Selon un mode de réalisation avantageux de l'invention, la portion courbe de la première résistance électrique chauffante est disposée à la verticale du plot de régulation additionnel lorsque la surface de repassage repose sur un support plan horizontal.According to an advantageous embodiment of the invention, the curved portion of the first electric heating resistor is arranged vertically to the additional regulation stud when the ironing surface rests on a horizontal plane support.

Selon un mode de réalisation avantageux de l'invention, la première résistance électrique chauffante comporte une première branche s'étendant à proximité d'une première portion latérale de la chambre de vaporisation, et une deuxième branche s'étendant à proximité d'une deuxième portion latérale de la chambre de vaporisation qui est opposée à la première portion latérale.According to an advantageous embodiment of the invention, the first electric heating resistor comprises a first branch extending close to a first lateral portion of the vaporization chamber, and a second branch extending close to a second side portion of the vaporization chamber which is opposite to the first side portion.

Selon un mode de réalisation avantageux de l'invention, la deuxième résistance électrique chauffante s'étend à l'intérieur des première et deuxième branches de la première résistance électrique chauffante.According to an advantageous embodiment of the invention, the second electric heating resistance extends inside the first and second branches of the first electric heating resistance.

Selon un mode de réalisation avantageux de l'invention, les première et deuxième résistances électriques chauffantes présentent une puissance cumulée supérieure à 2400 W.According to an advantageous embodiment of the invention, the first and second electric heating resistors have a combined power greater than 2400 W.

Selon un mode de réalisation avantageux de l'invention, la première résistance électrique chauffante et/ou la deuxième résistance électrique chauffante présentent une forme générale en U, V ou Ω.According to an advantageous embodiment of the invention, the first electric heating resistor and/or the second electric heating resistor have a general U, V or Ω shape.

Selon un mode de réalisation avantageux de l'invention, la portion courbe de la première résistance électrique est située au niveau d'une partie avant de la chambre de vaporisation.According to an advantageous embodiment of the invention, the curved portion of the first electrical resistor is located at a front part of the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, la portion courbe de la deuxième résistance électrique est située au niveau d'une partie arrière de la chambre de vaporisation.According to an advantageous embodiment of the invention, the curved portion of the second electrical resistor is located at a rear part of the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, la première résistance électrique chauffante s'étend dans un premier plan d'extension et la deuxième résistance électrique chauffante s'étend dans un deuxième plan d'extension qui est sensiblement parallèle au premier plan d'extension.According to an advantageous embodiment of the invention, the first electric heating resistance extends in a first plane of extension and the second electric heating resistance extends in a second plane of extension which is substantially parallel to the first plane of extension. 'extension.

Selon un mode de réalisation avantageux de l'invention, la première résistance électrique chauffante est située au-dessus de la deuxième résistance électrique chauffante lorsque la surface de repassage repose sur un support plan horizontal. En d'autres termes, la première résistance électrique chauffante est située à une altitude plus haute que la deuxième résistance électrique chauffante lorsque la surface de repassage repose sur un support plan horizontal.According to an advantageous embodiment of the invention, the first electric heating resistance is located above the second electric heating resistance when the ironing surface rests on a flat support horizontal. In other words, the first electric heating resistance is located at a higher altitude than the second electric heating resistance when the ironing surface rests on a horizontal plane support.

Selon un mode de réalisation avantageux de l'invention, le corps chauffant comporte une fonderie délimitant au moins en partie la chambre de vaporisation. Avantageusement, les première et deuxième résistances électriques chauffantes sont intégrées dans la fonderie.According to an advantageous embodiment of the invention, the heating body comprises a foundry delimiting at least in part the vaporization chamber. Advantageously, the first and second electric heating resistances are integrated in the foundry.

Selon un mode de réalisation avantageux de l'invention, le corps chauffant comporte une plaque de fermeture qui repose sur la fonderie, la chambre de vaporisation étant délimitée par la fonderie et la plaque de fermeture.According to an advantageous embodiment of the invention, the heating body comprises a closing plate which rests on the foundry, the vaporization chamber being delimited by the foundry and the closing plate.

Selon un mode de réalisation avantageux de l'invention, la chambre de vaporisation est délimitée latéralement par une paroi périphérique comportant une ouverture de liaison par laquelle la vapeur s'échappe de la chambre de vaporisation pour s'acheminer dans une cavité de récupération de tartre comprenant un récipient de récupération de tartre.According to an advantageous embodiment of the invention, the vaporization chamber is delimited laterally by a peripheral wall comprising a connection opening through which the steam escapes from the vaporization chamber to travel into a scale recovery cavity. including a scale collection container.

Selon un mode de réalisation avantageux de l'invention, la paroi de fond comprend une zone intermédiaire s'étendant entre les première et deuxième zones, la zone d'injection d'eau de la paroi de fond comportant une surface configurée pour canaliser l'eau s'écoulant sur la zone d'injection d'eau en direction de la zone intermédiaire lorsque le fer à repasser repose à plat sur la semelle de repassage.According to an advantageous embodiment of the invention, the bottom wall comprises an intermediate zone extending between the first and second zones, the water injection zone of the bottom wall comprising a surface configured to channel the water flowing over the water injection zone towards the intermediate zone when the iron is lying flat on the ironing soleplate.

Selon un mode de réalisation avantageux de l'invention, l'alimentation électrique de la deuxième résistance électrique chauffante est régulée au moyen d'un thermostat monté sur un plot de régulation disposé sur la trajectoire d'écoulement du flux d'eau injecté sur la paroi de fond depuis la zone d'injection d'eau.According to an advantageous embodiment of the invention, the electrical supply of the second electric heating resistor is regulated by means of a thermostat mounted on a regulation pad placed on the flow path of the flow of water injected on the bottom wall from the water injection zone.

Ces dispositions permettent de détecter rapidement l'apparition d'une flaque d'eau au niveau du plot de régulation, et donc de réguler l'alimentation électrique des première et/ou deuxième résistances électriques chauffantes au moyen du thermostat afin de vaporiser cette flaque d'eau, et donc d'éviter de mouiller un éventuel récipient de récupération de tartre situé à l'arrière de la chambre de vaporisation.These provisions make it possible to quickly detect the appearance of a puddle of water at the level of the regulation pad, and therefore to regulate the electrical supply of the first and/or second electric heating resistors by means of the thermostat in order to vaporize this puddle of water. water, and therefore avoid wetting any scale collection container located at the rear of the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, le plot de régulation dévie le flux vers deux chemins d'écoulement latéraux disposés de part et d'autre du plot de régulation.According to an advantageous embodiment of the invention, the regulation stud deflects the flow towards two lateral flow paths arranged on either side of the regulation stud.

Avantageusement, le plot de régulation est situé au niveau d'une portion arrière de la chambre de vaporisation. De façon avantageuse, la portion courbe de la deuxième résistance électrique chauffante est disposée à la verticale du plot de régulation lorsque la surface de repassage repose sur un support plan horizontal.Advantageously, the regulation pad is located at a rear portion of the vaporization chamber. Advantageously, the curved portion of the second electric heating resistor is arranged vertically to the regulation pad when the ironing surface rests on a horizontal plane support.

Selon un mode de réalisation avantageux de l'invention, chacun des chemins d'écoulement latéraux est incliné vers l'arrière de la chambre de vaporisation. Ces dispositions favorisent un écoulement d'une flaque d'eau formée dans la chambre de vaporisation vers l'arrière de la chambre de vaporisation.According to an advantageous embodiment of the invention, each of the lateral flow paths is inclined towards the rear of the vaporization chamber. These arrangements promote the flow of a puddle of water formed in the vaporization chamber towards the rear of the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, la zone intermédiaire comprend au moins une cavité de rétention d'un volume d'eau.According to an advantageous embodiment of the invention, the intermediate zone comprises at least one cavity for retaining a volume of water.

Selon un mode de réalisation avantageux de l'invention, la paroi de fond comporte une paroi de barrage qui délimite une extrémité aval de la cavité de rétention.According to an advantageous embodiment of the invention, the bottom wall comprises a barrier wall which delimits a downstream end of the retention cavity.

Selon un mode de réalisation avantageux de l'invention, la cavité de rétention est disposée au pied du plot de régulation.According to an advantageous embodiment of the invention, the retention cavity is arranged at the foot of the regulation stud.

Selon un mode de réalisation avantageux de l'invention, la paroi de fond comporte deux cavités de rétention, les cavités de rétention étant disposées des deux côtés du plot de régulation.According to an advantageous embodiment of the invention, the bottom wall comprises two retention cavities, the retention cavities being arranged on both sides of the regulation pad.

Selon un mode de réalisation avantageux de l'invention, la cavité de rétention est disposée au-dessus d'au moins une portion de la deuxième résistance électrique chauffante lorsque le fer à repasser repose à plat sur la semelle de repassage.According to an advantageous embodiment of the invention, the retention cavity is arranged above at least a portion of the second electric heating resistor when the iron rests flat on the ironing soleplate.

Selon un mode de réalisation avantageux de l'invention, le plot de régulation est disposé au voisinage de la portion courbe de la deuxième résistance électrique chauffante.According to an advantageous embodiment of the invention, the regulation pad is arranged in the vicinity of the curved portion of the second electric heating resistor.

Selon un mode de réalisation avantageux de l'invention, le plot de régulation est disposé au voisinage d'une des branches de la première résistance électrique chauffante.According to an advantageous embodiment of the invention, the regulation pad is placed in the vicinity of one of the branches of the first electric heating resistor.

Selon un mode de réalisation avantageux de l'invention, la paroi de fond comporte une surface bombée configurée pour canaliser l'eau s'écoulant sur la surface bombée en direction de la zone intermédiaire.According to an advantageous embodiment of the invention, the bottom wall comprises a curved surface configured to channel the water flowing over the curved surface in the direction of the intermediate zone.

Selon un mode de réalisation avantageux de l'invention, la surface bombée comporte une première portion de paroi inclinée en direction d'un premier bord latéral de la paroi de fond, une deuxième portion de paroi inclinée en direction d'un deuxième bord latéral de la paroi de fond, et une crête longitudinale reliant les première et deuxième portions de paroi. La crête longitudinale peut, par exemple, s'étendre dans le plan longitudinal médian du fer à repasser, et peut, par exemple, présenter une section transversale arrondie.According to an advantageous embodiment of the invention, the curved surface comprises a first portion of wall inclined towards a first side edge of the bottom wall, a second portion of wall inclined towards a second side edge of the bottom wall, and a longitudinal ridge connecting the first and second wall portions. The longitudinal ridge may, for example, extend in the median longitudinal plane of the iron, and may, for example, have a rounded cross section.

Selon un mode de réalisation avantageux de l'invention, le corps chauffant comporte une ouverture d'injection d'eau débouchant dans une partie avant de la chambre de vaporisation, et par exemple à proximité de l'extrémité avant de la paroi de fond.According to an advantageous embodiment of the invention, the heating body comprises a water injection opening opening into a front part of the vaporization chamber, and for example close to the front end of the bottom wall.

Selon un mode de réalisation avantageux de l'invention, l'ouverture d'injection d'eau est située au-dessus de la surface bombée. Ces dispositions évitent une accumulation d'eau dans la portion de la chambre de vaporisation située en dessous de la zone d'injection d'eau dans la chambre de vaporisation, et favorise donc la vaporisation de l'eau introduite dans la chambre de vaporisation. Ces dispositions améliorent ainsi encore l'efficacité de repassage du fer à repasser selon la présente invention.According to an advantageous embodiment of the invention, the water injection opening is located above the curved surface. These arrangements prevent an accumulation of water in the portion of the vaporization chamber situated below the zone for injecting water into the vaporization chamber, and therefore promotes the vaporization of the water introduced into the vaporization chamber. These arrangements thus further improve the ironing efficiency of the iron according to the present invention.

Selon un mode de réalisation avantageux de l'invention, la paroi de fond présente un sommet situé sensiblement en dessous de l'ouverture d'injection d'eau.According to an advantageous embodiment of the invention, the bottom wall has a top located substantially below the water injection opening.

Selon un mode de réalisation avantageux de l'invention, la paroi de fond de la chambre de vaporisation présente globalement une forme quadrilatérale.According to an advantageous embodiment of the invention, the bottom wall of the vaporization chamber generally has a quadrilateral shape.

Selon un mode de réalisation avantageux de l'invention, la deuxième résistance électrique chauffante s'étend à la périphérie de la surface bombée.According to an advantageous embodiment of the invention, the second electric heating resistor extends to the periphery of the curved surface.

Selon un mode de réalisation avantageux de l'invention, la deuxième résistance électrique chauffante comporte une première branche s'étendant à proximité d'un premier bord latéral de la surface bombée, et une deuxième branche s'étendant à proximité d'un deuxième bord latéral de la surface bombée qui est opposé au premier bord latéral.According to an advantageous embodiment of the invention, the second electric heating resistor comprises a first branch extending close to a first lateral edge of the curved surface, and a second branch extending close to a second side edge of the domed surface which is opposite the first side edge.

Selon un mode de réalisation avantageux de l'invention, l'ouverture d'injection d'eau débouche au-dessus d'une zone située entre les branches de la deuxième résistance électrique.According to an advantageous embodiment of the invention, the water injection opening opens above a zone located between the branches of the second electrical resistance.

Selon un mode de réalisation avantageux de l'invention, le circuit de distribution de vapeur comporte une cavité de récupération de tartre, le fer à repasser comprenant un récipient de récupération de tartre qui est disposé dans la cavité de récupération de tartre.According to an advantageous embodiment of the invention, the steam distribution circuit comprises a scale recovery cavity, the iron comprising a scale recovery container which is placed in the scale recovery cavity.

Selon un mode de réalisation avantageux de l'invention, le récipient de récupération de tartre est configuré pour collecter des particules de tartre provenant de la chambre de vaporisation.According to an advantageous embodiment of the invention, the scale collection container is configured to collect scale particles from the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, le récipient de récupération de tartre est amovible.According to an advantageous embodiment of the invention, the scale recovery container is removable.

Selon un mode de réalisation avantageux de l'invention, la cavité de récupération de tartre est disposée à l'arrière de la chambre de vaporisation.According to an advantageous embodiment of the invention, the scale recovery cavity is arranged at the rear of the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, la cavité de récupération de tartre comprend un orifice d'évacuation fermé par un bouchon amovible qui est accessible depuis l'extérieur du fer à repasser.According to an advantageous embodiment of the invention, the scale recovery cavity comprises an evacuation orifice closed by a removable plug which is accessible from outside the iron.

Selon un mode de réalisation avantageux de l'invention, l'orifice d'évacuation est disposé à l'arrière du fer à repasser.According to an advantageous embodiment of the invention, the discharge orifice is arranged at the rear of the iron.

Selon un mode de réalisation avantageux de l'invention, le récipient de récupération de tartre est solidaire du bouchon amovible.According to an advantageous embodiment of the invention, the scale recovery container is secured to the removable plug.

Selon un mode de réalisation avantageux de l'invention, la cavité de récupération de tartre est reliée à la chambre de vaporisation par l'ouverture de liaison débouchant dans l'extrémité arrière de la chambre de vaporisation.According to an advantageous embodiment of the invention, the scale recovery cavity is connected to the vaporization chamber by the connection opening opening out into the rear end of the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, le récipient de récupération de tartre comprend un élément de filtration comportant des ouvertures de passage configurées pour retenir des particules de tartre entraînées par la vapeur s'écoulant dans le circuit de distribution de vapeur.According to an advantageous embodiment of the invention, the scale recovery container comprises a filtration element comprising passage openings configured to retain scale particles entrained by the steam flowing in the steam distribution circuit.

Avantageusement, chacune des ouvertures de passage présente une dimension comprise entre 0,05 mm et 0,5 mm.Advantageously, each of the passage openings has a dimension of between 0.05 mm and 0.5 mm.

Selon un mode de réalisation avantageux de l'invention, le circuit de distribution de vapeur comporte au moins un canal d'échappement débouchant dans la cavité de récupération de tartre, l'au moins un canal d'échappement étant relié fluidiquement à l'au moins un orifice de sortie de vapeur. Avantageusement, l'au moins un canal d'échappement est situé en aval de l'élément de filtration.According to an advantageous embodiment of the invention, the steam distribution circuit comprises at least one exhaust channel opening into the scale recovery cavity, the at least one exhaust channel being fluidly connected to the au least one steam outlet. Advantageously, the at least one exhaust channel is located downstream of the filtration element.

Selon un mode de réalisation avantageux de l'invention, le circuit de distribution de vapeur comporte deux canaux d'échappement situés respectivement de chaque côté de l'ouverture de liaison.According to an advantageous embodiment of the invention, the steam distribution circuit comprises two exhaust channels located respectively on each side of the connecting opening.

Selon un mode de réalisation avantageux de l'invention, le circuit de distribution de vapeur comporte une chambre de distribution ménagée sous le corps chauffant, la chambre de distribution de vapeur reliant fluidiquement l'au moins un canal d'échappement à l'au moins un orifice de sortie de vapeur.According to an advantageous embodiment of the invention, the steam distribution circuit comprises a distribution chamber arranged under the heating body, the steam distribution chamber fluidically connecting the at least one exhaust channel to the at least a steam outlet.

Selon un mode de réalisation avantageux de l'invention, le thermostat et le thermostat additionnel sont réalisés respectivement par un capteur de température et un capteur de température additionnel reliés à un microcontrôleur.According to an advantageous embodiment of the invention, the thermostat and the additional thermostat are produced respectively by a temperature sensor and an additional temperature sensor connected to a microcontroller.

La présente invention concerne en outre un appareil de repassage comprenant un fer à repasser selon l'invention, un réservoir d'eau et un circuit d'alimentation relié fluidiquement au réservoir d'eau et configuré pour alimenter en eau la chambre de vaporisation.The present invention further relates to an ironing appliance comprising an iron according to the invention, a water tank and a supply circuit fluidically connected to the water tank and configured to supply water to the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, le circuit d'alimentation comporte un conduit d'acheminement d'eau reliant fluidiquement le réservoir d'eau à la chambre de vaporisation.According to an advantageous embodiment of the invention, the supply circuit comprises a conduit for conveying water fluidly connecting the water reservoir to the vaporization chamber.

Selon un mode de réalisation avantageux de l'invention, l'appareil de repassage comporte une base sur laquelle le fer à repasser est disposé lors des phases inactives de repassage.According to an advantageous embodiment of the invention, the ironing appliance comprises a base on which the iron is placed during inactive ironing phases.

Selon un mode de réalisation avantageux de l'invention, la base renferme le réservoir d'eau.According to an advantageous embodiment of the invention, the base encloses the water reservoir.

Selon un mode de réalisation avantageux de l'invention, le circuit d'alimentation comporte une pompe d'alimentation configurée pour alimenter la chambre de vaporisation en eau provenant du réservoir d'eau. Avantageusement, la pompe d'alimentation est intégrée dans la base.According to an advantageous embodiment of the invention, the supply circuit comprises a supply pump configured to supply the vaporization chamber with water coming from the water reservoir. Advantageously, the feed pump is integrated into the base.

Brève description des figures.Brief description of figures.

L'invention sera bien comprise à l'aide de la description sui suit en référence aux dessins schématiques annexés représentant, à titre d'exemple non limitatif, une forme d'exécution de cet appareil de repassage.

  • [Fig. 1] La figure 1 est une vue en perspective d'un appareil de repassage selon l'invention.
  • [Fig. 2] La figure 2 est une vue partielle en perspective d'un fer à repasser de l'appareil de repassage de la figure 1.
  • [Fig. 3] La figure 3 est une vue partielle en perspective du fer à repasser de la figure 2.
  • [Fig. 4] La figure 4 est une vue partielle de dessus du fer à repasser de la figure 2.
  • [Fig. 5] La figure 5 est une vue en coupe selon la ligne V-V de la figure 4.
  • [Fig. 6] La figure 6 est une vue en coupe selon la ligne VI-VI de la figure 4.
  • [Fig. 7] La figure 7 est une vue en coupe selon la ligne VII-VII de la figure 4.
  • [Fig. 8] La figure 8 est une vue en coupe selon la ligne VIII-VIII de la figure 4.
  • [Fig. 9] La figure 9 est une vue en coupe selon la ligne IX-IX de la figure 4.
  • [Fig. 10] La figure 10 est une vue de dessus des première et deuxième résistances chauffantes électriques représentées isolément.
The invention will be better understood with the aid of the following description with reference to the appended diagrammatic drawings representing, by way of non-limiting example, one embodiment of this ironing appliance.
  • [ Fig. 1 ] The figure 1 is a perspective view of an ironing appliance according to the invention.
  • [ Fig. 2 ] The picture 2 is a partial perspective view of an iron of the ironing apparatus of the figure 1 .
  • [ Fig. 3 ] The picture 3 is a partial perspective view of the iron of the figure 2 .
  • [ Fig. 4 ] The figure 4 is a partial top view of the iron of the figure 2 .
  • [ Fig. 5 ] The figure 5 is a sectional view along the line VV of the figure 4 .
  • [ Fig. 6 ] The figure 6 is a sectional view along line VI-VI of the figure 4 .
  • [ Fig. 7 ] The figure 7 is a sectional view along line VII-VII of the figure 4 .
  • [ Fig. 8 ] The figure 8 is a sectional view along the line VIII-VIII of the figure 4 .
  • [ Fig. 9 ] The figure 9 is a sectional view along the line IX-IX of the figure 4 .
  • [ Fig. 10 ] The figure 10 is a top view of the first and second electric heating resistors shown in isolation.

Description détailléedetailed description

Les figures 1 à 9 représentent un appareil de repassage 2 qui comporte un fer à repasser 3 et une base 4 sur laquelle le fer à repasser 3 peut être disposé lors des phases inactives de repassage.The figures 1 to 9 represent an ironing appliance 2 which comprises an iron 3 and a base 4 on which the iron 3 can be placed during inactive ironing phases.

L'appareil de repassage 2 comporte en outre un réservoir d'eau 5 intégré dans la base 4 et pouvant par exemple être amovible, et un circuit d'alimentation relié fluidiquement au réservoir d'eau 5. Le circuit d'alimentation comporte notamment un conduit d'acheminement d'eau 6 reliant fluidiquement le réservoir d'eau 5 au fer à repasser 3, et une pompe d'alimentation (non visible sur les figures) intégrée dans la base 4 et configurée pour alimenter le fer à repasser 3 en eau provenant du réservoir d'eau 5.The ironing appliance 2 further comprises a water reservoir 5 integrated into the base 4 and which can for example be removable, and a power supply circuit connected fluidically to the water reservoir 5. The supply circuit comprises in particular a water conveying conduit 6 fluidly connecting the water reservoir 5 to the iron 3, and a supply pump (not visible in the figures ) integrated in the base 4 and configured to supply the iron 3 with water from the water tank 5.

Le fer à repasser 3 comporte un boîtier 7 comportant une partie de préhension 8 à son extrémité supérieure, et une semelle de repassage 9 munie d'une surface de repassage 11 sensiblement plane et d'une pluralité d'orifices de sortie de vapeur 12 débouchant dans la surface de repassage 11.The iron 3 comprises a housing 7 comprising a gripping part 8 at its upper end, and an ironing soleplate 9 provided with a substantially flat ironing surface 11 and with a plurality of steam outlet orifices 12 emerging in the ironing surface 11.

Comme montré plus particulièrement sur la figure 2, le fer à repasser 3 comporte également un corps chauffant 13 intégré dans la partie basse du boitier 7, et lié thermiquement et mécaniquement à la semelle de repassage 9. Le corps chauffant 13 comporte une fonderie 14, par exemple en aluminium, et une plaque de fermeture 15 qui repose sur la fonderie 14.As shown more particularly on the picture 2 , the iron 3 also comprises a heating body 13 integrated into the lower part of the case 7, and thermally and mechanically linked to the ironing soleplate 9. The heating body 13 comprises a foundry 14, for example aluminum, and a plate closure 15 which rests on the foundry 14.

Le corps chauffant 13 comporte également une chambre de vaporisation 16, de type à vaporisation instantanée, délimitée par la fonderie 14 et la plaque de fermeture 15. La fonderie 14 comporte plus particulièrement une paroi périphérique 17 délimitant latéralement la chambre de vaporisation 16. Avantageusement, la chambre de vaporisation 16 est au moins en partie, et par exemple sensiblement entièrement, revêtue intérieurement par un revêtement anti-caléfaction.The heating body 13 also comprises a vaporization chamber 16, of the instantaneous vaporization type, delimited by the casting 14 and the closure plate 15. The casting 14 more particularly comprises a peripheral wall 17 laterally delimiting the vaporization chamber 16. Advantageously, the vaporization chamber 16 is at least partly, and for example substantially entirely, internally coated with an anti-calefaction coating.

Le corps chauffant 13 comporte en outre un première résistance électrique chauffante 18 et une deuxième résistance électrique chauffante 19 qui sont intégrées dans la fonderie 14. De manière préférentielle la première résistance électrique chauffante 18 et la deuxième résistance électrique chauffante 19 présentent une forme générale en U, V ou Ω.The heating body 13 further comprises a first electric heating resistor 18 and a second electric heating resistor 19 which are integrated in the foundry 14. Preferably the first electric heating resistor 18 and the second electric heating resistor 19 have a general U-shape. , V or Ω.

Les première et deuxième résistances électriques chauffantes 18, 19 sont plus particulièrement visibles sur la figure 10 où elles sont représentées isolément. La première résistance électrique chauffante 18 comporte une première branche 18.1, s'étendant à proximité d'une première portion latérale de la chambre de vaporisation 16, et une deuxième branche 18.2, s'étendant à proximité d'une deuxième portion latérale de la chambre de vaporisation 16, les première et deuxième branches 18.1, 18.2 étant reliées entre elles par une portion de liaison courbe 18.3.The first and second electric heating resistances 18, 19 are more particularly visible on the figure 10 where they are represented separately. The first electric heating resistor 18 comprises a first branch 18.1, extending close to a first lateral portion of the vaporization chamber 16, and a second branch 18.2, extending close to a second lateral portion of the vaporization chamber 16, the first and second branches 18.1, 18.2 being interconnected by a curved connecting portion 18.3.

La deuxième résistance électrique chauffante 19 s'étend à l'intérieur des première et deuxième branches 18.1, 18.2 de la première résistance électrique chauffante 18. La deuxième résistance électrique chauffante 19 présente également une première branche 19.1 s'étendant à proximité d'une première portion latérale de la chambre de vaporisation 16, et une deuxième branche 19.2, s'étendant à proximité d'une deuxième portion latérale de la chambre de vaporisation 16, les première et deuxième branches 19.1, 19.2 étant reliées entre elles par une portion de liaison courbe 19.3.The second electric heating resistance 19 extends inside the first and second branches 18.1, 18.2 of the first electric heating resistance 18. The second electric heating resistance 19 also has a first branch 19.1 extending close to a first lateral portion of the vaporization chamber 16, and a second branch 19.2, extending close to a second lateral portion of the vaporization chamber 16, the first and second branches 19.1, 19.2 being interconnected by a connecting portion curve 19.3.

Plus particulièrement selon l'invention, la première résistance électrique chauffante 18 et la deuxième résistance électrique chauffante 19 sont disposées tête-bêche.More particularly according to the invention, the first electric heating resistor 18 and the second electric heating resistor 19 are arranged head to tail.

Afin de permettre leur alimentation électrique, la première résistance électrique chauffante 18 comporte deux extrémités de raccordement 18A, 18B faisant saillie en dehors de la fonderie 14 du côté de l'extrémité arrière du corps chauffant 13, et la deuxième résistance électrique chauffante 19 comporte deux extrémités de raccordement 19A, 19B faisant saillie en dehors de la fonderie du côté de l'extrémité avant du corps chauffant 13.In order to allow their electrical supply, the first electric heating resistor 18 comprises two connection ends 18A, 18B projecting outside the foundry 14 on the side of the rear end of the heating body 13, and the second electric heating resistor 19 comprises two connection ends 19A, 19B protruding outside the foundry on the side of the front end of the heating body 13.

De manière préférentielle, les première et deuxième résistances électriques chauffantes 18, 19 présentent une puissance cumulée supérieure à 2400W. A titre d'exemple, la première résistance électrique chauffante 18 pourra présenter une puissance électrique de l'ordre de 2000W et la deuxième résistance électrique chauffante 19 pourra présenter une puissance électrique de l'ordre de 1000W, une telle répartition de puissance permettant d'équilibrer la densité de puissance au vu de la longueur respective des deux résistances électriques chauffantes pour atteindre un total de 3000W.Preferably, the first and second electrical heating resistors 18, 19 have a combined power greater than 2400W. By way of example, the first electrical heating resistor 18 may have an electrical power of the order of 2000W and the second electrical heating resistor 19 may have an electrical power of the order of 1000W, such a power distribution making it possible to balance the power density in view of the respective length of the two electric heating resistors to reach a total of 3000W.

De façon avantageuse, la première résistance électrique chauffante 18 s'étend dans un premier plan d'extension et la deuxième résistance électrique chauffante 19 s'étend dans un deuxième plan d'extension qui est sensiblement parallèle au premier plan d'extension et préférentiellement sensiblement parallèle au plan de la surface de repassage 11.Advantageously, the first electric heating resistance 18 extends in a first plane of extension and the second electric heating resistance 19 extends in a second plane of extension which is substantially parallel to the first plane of extension and preferably substantially parallel to the plane of the ironing surface 11.

Selon le mode de réalisation représenté sur les figures, la première résistance électrique chauffante 18 est située à une altitude plus élevée que la deuxième résistance électrique chauffante 19 lorsque la surface de repassage 11 repose sur un support plan horizontal.According to the embodiment shown in the figures, the first electric heating resistance 18 is located at a higher altitude than the second electric heating resistance 19 when the ironing surface 11 rests on a horizontal plane support.

La chambre de vaporisation 16 comporte une paroi de fond 21, sur laquelle de l'eau est destinée à s'écouler pour produire de la vapeur, qui présente avantageusement une multitude de plots pyramidaux qui font saillie sur la paroi de fond 21 afin d'augmenter la surface d'échange thermique. La paroi de fond 21 présente globalement la forme d'un quadrilatère et comporte avantageusement une surface bombée 22 située dans une zone longitudinale centrale de la paroi de fond 21. La surface bombée 22 est plus particulièrement bombée dans une direction transversale D1 qui s'étend transversalement à la direction longitudinale D2 du fer à repasser 3.The vaporization chamber 16 comprises a bottom wall 21, over which water is intended to flow to produce steam, which advantageously has a multitude of pyramidal studs which protrude from the bottom wall 21 in order to increase the heat exchange surface. The bottom wall 21 has the overall shape of a quadrilateral and advantageously comprises a curved surface 22 located in a central longitudinal zone of the bottom wall 21. The curved surface 22 is more particularly curved in a transverse direction D1 which extends transversely to the longitudinal direction D2 of the iron 3.

Selon le mode de réalisation représenté sur les figures, la surface bombée 22 est disposée symétriquement par rapport à un plan longitudinal médian du fer à repasser 3, et comporte une première portion de paroi 22.1 inclinée en direction d'un premier bord latéral de la paroi de fond 21, une deuxième portion de paroi 22.2 inclinée en direction d'un deuxième bord latéral de la paroi de fond 21, et une crête longitudinale 22.3 reliant les première et deuxième portions de paroi 22.1, 22.2. La crête longitudinale 22.3 peut par exemple s'étendre dans le plan longitudinal médian du fer à repasser 3, et peut par exemple présenter une section transversale arrondie.According to the embodiment shown in the figures, the curved surface 22 is arranged symmetrically with respect to a median longitudinal plane of the iron 3, and comprises a first wall portion 22.1 inclined in the direction of a first lateral edge of the wall bottom 21, a second wall portion 22.2 inclined towards a second side edge of the bottom wall 21, and a longitudinal ridge 22.3 connecting the first and second wall portions 22.1, 22.2. The longitudinal ridge 22.3 can for example extend in the median longitudinal plane of the iron 3, and can for example have a rounded cross section.

Avantageusement, la première résistance électrique chauffante 18 s'étend dans une première zone de la paroi de fond 21 située à la périphérie de la paroi de fond 21, tandis que la deuxième résistance électrique chauffante 19 s'étend dans une deuxième zone de la paroi de fond 21 située à la périphérie de la surface bombée 22. En d'autres termes, la première résistance électrique chauffante 18 s'étend à la périphérie de la paroi de fond 21, et la deuxième résistance électrique chauffante 19 s'étend à la périphérie de la surface bombée 22.Advantageously, the first electric heating resistance 18 extends in a first zone of the bottom wall 21 located at the periphery of the bottom wall 21, while the second electric heating resistance 19 extends in a second zone of the wall bottom 21 located at the periphery of the curved surface 22. In other words, the first electric heating resistance 18 extends to the periphery of the bottom wall 21, and the second electric heating resistance 19 extends to the periphery of the curved surface 22.

La paroi de fond 21 comprend de plus une zone intermédiaire 23 s'étendant entre les première et deuxième zones de la paroi de fond 21, et donc entre la surface bombée 22 et la périphérie de la paroi de fond 21. La zone intermédiaire 23 comprend plus particulièrement deux chemins d'écoulement latéraux 23.1, 23.2 s'étendant entre les première et deuxième résistances électriques chauffantes, chacun des chemins d'écoulement latéraux étant incliné vers l'arrière de la chambre de vaporisation 16 et la surface bombée 22 étant configurée pour canaliser l'eau s'écoulant sur la surface bombée 22 en direction des deux chemins d'écoulement latéraux 23.1, 23.2.The bottom wall 21 further comprises an intermediate zone 23 extending between the first and second zones of the bottom wall 21, and therefore between the curved surface 22 and the periphery of the bottom wall 21. The intermediate zone 23 comprises more particularly two lateral flow paths 23.1, 23.2 extending between the first and second electric heating resistors, each of the lateral flow paths being inclined towards the rear of the vaporization chamber 16 and the curved surface 22 being configured to channeling the water flowing over the curved surface 22 in the direction of the two lateral flow paths 23.1, 23.2.

Le corps chauffant 13 comporte en outre un plot de régulation 24 situé entre les deux chemins d'écoulement latéraux 23.1, 23.2, au niveau de l'extrémité arrière de la chambre de vaporisation 16, chacun des chemins d'écoulement latéraux 23.1, 23.2 étant incliné vers l'arrière de la chambre de vaporisation 16 c'est-à-dire vers le plot de régulation 24. Les deux chemins d'écoulement latéraux 23.1, 23.2 sont avantageusement situés en contrebas du contour de la surface bombée 22 au niveau de la partie arrière de la chambre de vaporisation 16, de sorte qu'il résulte une marche entre le fond des deux chemins d'écoulement latéraux 23.1, 23.2 et le contour de la surface bombée 22. L'extrémité arrière de la chambre de vaporisation 16 comporte deux parois de barrage 20 qui font transversalement saillie sur la paroi de fond 21 de la chambre de vaporisation 16, entre le plot de régulation 24 et la paroi périphérique 17, les deux parois de barrage 20 retenant l'eau s'écoulant le long des chemins d'écoulement latéraux 23.1, 23.2 formant ainsi une cavité de rétention 27 en amont de la paroi de barrage 20.The heating body 13 further comprises a regulation stud 24 located between the two lateral flow paths 23.1, 23.2, at the level of the rear end of the vaporization chamber 16, each of the lateral flow paths 23.1, 23.2 being inclined towards the rear of the vaporization chamber 16, that is to say towards the regulation stud 24. The two lateral flow paths 23.1, 23.2 are advantageously located below the contour of the curved surface 22 at the level of the rear part of the vaporization chamber 16, so that a step results between the bottom of the two lateral flow paths 23.1, 23.2 and the contour of the curved surface 22. The rear end of the vaporization chamber 16 comprises two dam walls 20 which protrude transversely from the bottom wall 21 of the vaporization chamber 16, between the regulation pad 24 and the peripheral wall 17, the two dam walls 20 retaining the water flowing along summer paths side flow 23.1, 23.2 thus forming a retention cavity 27 upstream of the dam wall 20.

Comme montré plus particulièrement sur les figures 2 et 3, le plot de régulation 24 est formé par la fonderie 14 et est situé au niveau d'une portion arrière de la surface bombée 22, l'extrémité supérieure du plot de régulation s'étendant à travers la plaque de fermeture 15. Selon le mode de réalisation représenté sur les figures, le fer à repasser 3 comporte un thermostat (non représenté) monté sur le plot de régulation 24, et la paroi de fond 21 est configurée pour canaliser l'eau s'écoulant sur la paroi de fond 21 en direction du plot de régulation 24 et de la zone intermédiaire 23.As shown more particularly on the figure 2 and 3 , the regulating stud 24 is formed by the foundry 14 and is located at a rear portion of the curved surface 22, the upper end of the regulating stud extending through the closing plate 15. According to the mode embodiment shown in the figures, the iron 3 comprises a thermostat (not shown) mounted on the regulation stud 24, and the bottom wall 21 is configured to channel the water flowing over the bottom wall 21 by direction of the regulation stud 24 and of the intermediate zone 23.

Le corps chauffant 13 comporte également un plot de régulation additionnel 26 situé au niveau d'une partie avant de la chambre de vaporisation 16. Avantageusement, le plot de régulation additionnel 26 est situé verticalement au-dessus de l'extrémité recourbée de la première résistance électrique chauffante 18 et le plot de régulation 24 est situé au-dessus de l'extrémité recourbée de la deuxième résistance électrique chauffante 19. Comme montré plus particulièrement sur les figures 2 et 3, le plot de régulation additionnel 26 est formé par la fonderie 14 et s'étend à travers la plaque de fermeture 15. Selon le mode de réalisation représenté sur les figures, le fer à repasser 3 comporte un thermostat additionnel (non représenté) monté sur le plot de régulation additionnel 26.The heating body 13 also comprises an additional regulation pad 26 located at a front part of the vaporization chamber 16. Advantageously, the additional regulation pad 26 is located vertically above the curved end of the first resistor electrical heater 18 and the regulation pad 24 is located above the curved end of the second electrical heating resistor 19. As shown more particularly on the figure 2 and 3 , the additional regulation pad 26 is formed by the foundry 14 and extends through the closure plate 15. According to the embodiment shown in the figures, the iron 3 comprises an additional thermostat (not shown) mounted on the additional regulation pad 26.

Le fer à repasser 3 comporte avantageusement un dispositif de régulation de type microcontroleur (non représenté sur les figures) configuré pour réguler l'alimentation électrique de la première résistance électrique chauffante 18 au moyen du thermostat additionnel monté sur le plot de régulation additionnel 26 situé à l'avant de la chambre de vaporisation 16 et pour réguler l'alimentation électrique de la deuxième résistance électrique chauffante 19 au moyen du thermostat monté sur le plot de régulation 24 situé à l'arrière de la chambre de vaporisation 16.The iron 3 advantageously includes a microcontroller-type regulating device (not shown in the figures) configured to regulate the electrical supply to the first electric heating resistor 18 by means of the additional thermostat mounted on the additional regulating pad 26 located at the front of the vaporization chamber 16 and to regulate the electrical supply of the second electric heating resistance 19 by means of the thermostat mounted on the regulation pad 24 located at the rear of the vaporization chamber 16.

Le corps chauffant 13 comporte en outre une ouverture d'injection d'eau 28 reliée fluidiquement à la pompe d'alimentation et débouchant dans une partie avant de la chambre de vaporisation 16, et par exemple à proximité de l'extrémité avant de la paroi de fond 21. La pompe d'alimentation est ainsi configurée pour alimenter la chambre de vaporisation 16 en eau provenant du réservoir d'eau 5 avec une pression supérieure à 500 Pa, l'ensemble étant adapté pour permettre la production d'un débit de vapeur supérieur à 60 gr/min selon le cycle normalisé de 5 sec de vaporisation suivi de 15 sec d'arrêtThe heating body 13 further comprises a water injection opening 28 fluidly connected to the feed pump and opening into a front part of the vaporization chamber 16, and for example near the front end of the wall. bottom 21. The supply pump is thus configured to supply the vaporization chamber 16 with water coming from the water tank 5 with a pressure greater than 500 Pa, the assembly being adapted to allow the production of a flow rate of steam greater than 60 gr/min according to the standardized cycle of 5 sec of vaporization followed by 15 sec of stoppage

De façon avantageuse, l'ouverture d'injection d'eau 28 est ménagée sur la plaque de fermeture 15, et débouche dans la chambre de vaporisation 16 au-dessus d'une zone d'injection d'eau située à proximité de l'extrémité avant de la paroi de fond 21, et entre les branches de la deuxième résistance électrique chauffante 19. De façon avantageuse, la paroi de fond 21 présente un sommet situé sensiblement en dessous de l'ouverture d'injection d'eau 28.Advantageously, the water injection opening 28 is provided on the closure plate 15, and opens into the vaporization chamber 16 above a water injection zone located close to the front end of the bottom wall 21, and between the branches of the second electric heating resistor 19. Advantageously, the bottom wall 21 has a top located substantially below the water injection opening 28.

Le fer à repasser 3 comprend en outre un circuit de distribution de vapeur 29 défini par la fonderie 14 et la plaque de fermeture 15, et reliant fluidiquement la chambre de vaporisation 16 aux orifices de sortie de vapeur 12, et ce de telle sorte que la vapeur générée dans la chambre de vaporisation 16 puisse s'écouler jusqu'aux orifices de sortie de vapeur 12.The iron 3 further comprises a steam distribution circuit 29 defined by the foundry 14 and the closure plate 15, and fluidly connecting the vaporization chamber 16 to the steam outlet orifices 12, and this in such a way that the steam generated in the vaporization chamber 16 can flow to the steam outlets 12.

Le circuit de distribution de vapeur 29 comporte notamment une cavité de récupération de tartre 31 comprenant un orifice d'évacuation 32 fermé par un bouchon amovible 33 qui est accessible depuis l'extérieur du fer à repasser 3. De façon avantageuse, l'orifice d'évacuation 32 débouche dans une surface arrière du boîtier 7 du fer à repasser 3.The steam distribution circuit 29 comprises in particular a scale recovery cavity 31 comprising an evacuation orifice 32 closed by a removable plug 33 which is accessible from outside the iron 3. Advantageously, the orifice of evacuation 32 opens into a rear surface of the housing 7 of the iron 3.

La cavité de récupération de tartre 31 est disposée à l'arrière de la chambre de vaporisation 16, et est reliée à la chambre de vaporisation 16 par une ouverture de liaison 34 débouchant dans l'extrémité arrière de la chambre de vaporisation 16. La cavité de récupération de tartre 31 est avantageusement située dans une partie du boîtier 7 se trouvant en porte-à-faux derrière la semelle de repassage 9 lorsque le fer à repasser 3 repose sur la semelle de repassage 9.The scale recovery cavity 31 is arranged at the rear of the vaporization chamber 16, and is connected to the vaporization chamber 16 by a connection opening 34 opening out into the rear end of the vaporization chamber 16. The cavity scale recovery 31 is advantageously located in a part of the housing 7 which is cantilevered behind the ironing soleplate 9 when the iron 3 rests on the ironing soleplate 9.

Le fer à repasser 3 comprend en outre un récipient de récupération de tartre 35 qui est monté, par exemple de manière amovible, dans la cavité de récupération de tartre 31. Le récipient de récupération de tartre 35 est configuré pour collecter des particules de tartre provenant de la chambre de vaporisation 16. Ces particules de tartre peuvent tomber par gravité depuis la chambre de vaporisation 16 lorsque la semelle de repassage 9 est inclinée par rapport à l'horizontale, et par exemple lorsque le fer à repasser 3 repose sur la base 4, et peuvent également être entraînées par la vapeur provenant de la chambre de vaporisation 16. De façon avantageuse, le récipient de récupération de tartre 35 est solidaire du bouchon amovible 33.The iron 3 further comprises a scale collection container 35 which is mounted, for example in a removable manner, in the scale collection cavity 31. The scale collection container 35 is configured to collect particles of scale from of the vaporization chamber 16. These scale particles can fall by gravity from the vaporization chamber 16 when the ironing soleplate 9 is inclined with respect to the horizontal, and for example when the iron 3 rests on the base 4 , and can also be entrained by the steam coming from the vaporization chamber 16. Advantageously, the scale recovery container 35 is integral with the removable plug 33.

Le récipient de récupération de tartre 35 peut éventuellement comprendre un élément de filtration comportant des ouvertures de passage configurées pour retenir des particules de tartre entraînées par la vapeur s'écoulant dans le circuit de distribution de vapeur. Avantageusement, chacune des ouvertures de passage présente une dimension comprise entre 0,05 mm et 0,5 mm.The scale recovery container 35 may optionally include a filtration element having passage openings configured to retain scale particles entrained by the steam flowing in the circuit. steam distribution. Advantageously, each of the passage openings has a dimension of between 0.05 mm and 0.5 mm.

De manière préférentielle, le circuit de distribution de vapeur 29 comporte deux canaux d'échappement 25, visibles sur la figure 8, disposés symétriquement de part et d'autre de l'ouverture de liaison 34, ces deux canaux d'échappement 25 reliant la cavité de récupération de tartre 31 avec une chambre de distribution de vapeur ménagée sous le corps chauffant 13 afin d'alimenter les orifices de sortie de vapeur 11 de la semelle de repassage 9.Preferably, the steam distribution circuit 29 comprises two exhaust channels 25, visible on the figure 8 , arranged symmetrically on either side of the connecting opening 34, these two exhaust channels 25 connecting the scale recovery cavity 31 with a steam distribution chamber provided under the heating body 13 in order to supply the steam outlet holes 11 of the ironing soleplate 9.

Lorsque de l'eau est injectée dans la chambre de vaporisation 16 du fer à repasser 3 via l'ouverture d'injection d'eau 28, une partie de l'eau injectée est vaporisée au contact de la surface bombée 22 qui est située en dessous de l'ouverture d'injection d'eau 28, tandis que l'eau non vaporisée est guidée par la surface bombée 22 en direction du plot de régulation 24 et des deux chemins d'écoulement latéraux 23.1, 23.2, le plot de régulation 24 formant un obstacle empêchant l'eau de s'écouler directement en direction de l'ouverture de liaison 34 ménagée à l'arrière de la chambre de vaporisation 16. L'eau non vaporisée se propage ensuite, sous la forme d'une flaque d'eau, le long des deux chemins d'écoulement latéraux 23.1, 23.2 et vers l'arrière de la chambre de vaporisation 16, sous l'effet conjugué notamment de la gravité (les chemins d'écoulement latéraux sont inclinés vers l'arrière) et des forces de trainée liées au flux de vapeur qui s'échappe vers l'ouverture de liaison 34.When water is injected into the vaporization chamber 16 of the iron 3 via the water injection opening 28, part of the injected water is vaporized in contact with the curved surface 22 which is located in below the water injection opening 28, while the non-vaporized water is guided by the domed surface 22 in the direction of the regulating stud 24 and the two lateral flow paths 23.1, 23.2, the regulating stud 24 forming an obstacle preventing the water from flowing directly towards the connecting opening 34 provided at the rear of the vaporization chamber 16. The unvaporized water then spreads, in the form of a puddle of water, along the two lateral flow paths 23.1, 23.2 and towards the rear of the vaporization chamber 16, under the combined effect in particular of gravity (the lateral flow paths are inclined towards the rear ) and drag forces related to the flow of vapor which escapes towards the connecting opening 34.

Lorsque la flaque d'eau atteint les parois de barrage 20 (via l'un ou l'autre des deux chemins d'écoulement latéraux 23.1, 23.2), elle est bloquée dans la cavité de rétention 27 formée en amont de la paroi de barrage 20, au pied du plot de régulation 24, de sorte que la température du plot de régulation 24 diminue, ce qui permet au thermostat d'informer le dispositif de régulation de façon à enclencher l'alimentation électrique de la deuxième résistance électrique chauffante 19. La puissance thermique absorbée par la flaque d'eau, qui se trouve alors à proximité directe des première et deuxième résistances électriques chauffantes 18, 19, permet de résorber la taille de la flaque d'eau, la présence de la paroi de barrage 20 permettant d'empêcher l'eau d'être entrainée jusqu'à l'ouverture de liaison 34 et donc jusqu'au récipient de récupération de tartre 35.When the puddle reaches the dam walls 20 (via either of the two lateral flow paths 23.1, 23.2), it is blocked in the retention cavity 27 formed upstream of the dam wall. 20, at the foot of the regulation stud 24, so that the temperature of the regulation stud 24 decreases, which allows the thermostat to inform the regulation device so as to switch on the electrical supply of the second electric heating resistor 19. The thermal power absorbed by the puddle of water, which is then in direct proximity to the first and second electrical heating resistors 18, 19, makes it possible to reduce the size of the puddle of water, the presence of the barrier wall 20 allowing to prevent water from being drawn into the connecting opening 34 and therefore into the scale recovery container 35.

En outre, les particules de tartre formées dans la chambre de vaporisation 16 sont entraînées, à la fois par le déplacement de la flaque d'eau vers l'arrière de la chambre de vaporisation 16 et par le flux de vapeur sous l'effet des forces de trainée, en direction de l'ouverture de liaison 34 et du récipient de récupération de tartre 35. Les particules de tartre sont ainsi collectées par le récipient de récupération de tartre 35.In addition, the scale particles formed in the vaporization chamber 16 are entrained, both by the displacement of the puddle of water towards the rear of the vaporization chamber 16 and by the flow of steam under the effect of the drag forces, in the direction of the connecting opening 34 and the scale collection container 35. The scale particles are thus collected by the scale collection container 35.

Bien entendu, la présente invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the present invention is in no way limited to the embodiment described and illustrated which has been given only by way of example. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Ainsi, dans une variante de réalisation non représentée, l'eau pourra être injectée dans la chambre de vaporisation par un boisseau goutte-à-goutte alimenté par gravité en eau en provenance d'un réservoir plutôt que par une pompe.Thus, in a variant embodiment not shown, the water may be injected into the vaporization chamber by a drip valve fed by gravity with water coming from a reservoir rather than by a pump.

Claims (15)

  1. Iron (3) comprising an ironing sole plate comprising at least one steam outlet orifice (12) and a heating body (13) comprising a steam chamber (16) connected by a steam distribution circuit to the at least one steam outlet orifice (12), the steam chamber (16) having a bottom wall (21) comprising a water injection zone on which water is intended to be injected to produce steam, the heating body (13) comprising a first electrical heating resistor (18) extending into a first zone of the bottom wall (21) and a second electrical heating resistor (9), the first electrical heating resistor (18) having a curved portion (18.3) extending between two connecting ends (18A, 18B) to its electrical supply and the second electrical heating resistor (19) having a curved portion (19.3) extending between two connecting ends (19A, 19B) for its electrical supply, and the first electrical heating resistor (18) and the second electrical heating resistor (19) being arranged head-to-tail, the curved portions (18.3, 19.3) of the first and second electrical resistors (18, 19) being arranged opposite one another, characterised in that the second electrical heating resistor (19) extends into a second zone of the bottom wall (21) of the steam chamber (16).
  2. Iron (3) according to claim 1, wherein the iron (3) comprises a regulating device configured to independently regulate the electrical supply of the first electrical heating resistor (18) of the electrical supply of the second electrical heating resistor (19).
  3. Iron (3) according to any one of claims 1 to 2, characterised in that the connecting ends (18A, 18b) of the first electrical heating resistor (18) project outside of the heating body (13) of the side of a rear end of the heating body (13) and in that the connecting ends (19A, 19B) of the second electrical heating resistor (19) project outside of the heating body (13) of the side of a front end of the heating body (13).
  4. Iron (3) according to the preceding claim, wherein the iron comprises a regulating device configured to regulate the electrical supply of the second electrical heating resistor (19) by means of a thermostat mounted on a regulating pad (24) located at the level of a rear portion of the steam chamber (16) and to regulate the electrical supply of the first electrical heating resistor (18) by means of an additional thermostat mounted on an additional regulating pad (26) located at the level of a front portion of the steam chamber (16).
  5. Iron (3) according to any one of claims 1 to 4, wherein the first electrical heating resistor (18) extends to the periphery of the bottom wall (21) and the second electrical heating resistor (19) extends under the bottom wall (21).
  6. Iron (3) according to any one of claims 1 to 5, wherein the first electrical heating resistor (18) comprises a first branch (18.1) extending in the proximity of a first side portion of the steam chamber (16), and a second branch (18.2) extending in the proximity of a second side portion of the steam chamber (16) which is opposite the first side portion.
  7. Iron (3) according to any one of claims 1 to 6, wherein the second electrical heating resistor (19) extends inside the first and second branches (18.1, 18.2) of the first electrical heating resistor (18).
  8. Iron (3) according to any one of claims 1 to 7, wherein the first electrical heating resistor (18) and the second electrical heating resistor (19) have an accumulated power of greater than 2400W.
  9. Iron (3) according to any one of claims 1 to 8, wherein the steam chamber (16) is laterally delimited by a peripheral wall (17) comprising a connecting opening (34) through which the steam escapes from the steam chamber (16) to be conveyed into a scale collection cavity (31) comprising a scale collection container (35).
  10. Iron (3) according to any one of claims 1 to 9, wherein the bottom wall (21) comprises an intermediate zone (23) extending between the first and second zones and wherein the water injection zone of the bottom wall (21) comprises a surface (22) configured to channel the water flowing over the water injection zone in the direction of the intermediate zone (23) when the iron rests flat on the ironing sole plate (9)
  11. Iron (3) according to the preceding claim, wherein the electrical supply of the second electrical heating resistor (19) is regulated by means of a thermostat mounted on a regulation pad (24) arranged on the flow path of the water flow injected on the bottom wall (21) from the water injection zone.
  12. Iron (3) according to any one of claims 10 to 11, wherein the intermediate zone (23) comprises at least one cavity for retaining (27) a water volume.
  13. Iron (3) according to the preceding claim, wherein the retaining cavity (27) is arranged at the foot of the regulation pad (24).
  14. Iron (3) according to any one of claims 12 to 13, wherein the regulation pad (24) is arranged in the vicinity of the curved portion (19.3) of the second electrical heating resistor (19).
  15. Ironing appliance (2) comprising an iron (3) according to any one of the preceding claims, a water reservoir (5) and a supply circuit fluidly connected to the water reservoir (5) and configured to supply the steam chamber (16) with water.
EP20181697.2A 2019-06-28 2020-06-23 Iron fitted with a steam chamber provided with two electrical heating resistors Active EP3757281B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1907116A FR3097882B1 (en) 2019-06-28 2019-06-28 Iron equipped with a vaporization chamber fitted with two electric heating resistors

Publications (2)

Publication Number Publication Date
EP3757281A1 EP3757281A1 (en) 2020-12-30
EP3757281B1 true EP3757281B1 (en) 2022-05-04

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ID=68425034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20181697.2A Active EP3757281B1 (en) 2019-06-28 2020-06-23 Iron fitted with a steam chamber provided with two electrical heating resistors

Country Status (3)

Country Link
EP (1) EP3757281B1 (en)
CN (1) CN112144257B (en)
FR (1) FR3097882B1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970394A (en) * 1958-10-29 1961-02-07 Eugene S Brumbaugh Electric iron
GB2437283A (en) * 2006-04-22 2007-10-24 Richards Morphy N I Ltd Steam iron
ES2308952B1 (en) * 2008-07-03 2009-11-16 Electrodomesticos Taurus, S.L. STEAM IRON.
FR2971796B1 (en) * 2011-02-18 2014-05-09 Seb Sa STEAM IRON COMPRISING AN IRONING PLATE COMPRISING AT LEAST ONE FIRST GROUP AND A SECOND GROUP OF STEAM OUTPUT HOLES
FR3033338B1 (en) * 2015-03-03 2017-02-24 Seb Sa IRONING HOUSEHOLD APPLIANCE COMPRISING A FILTER FOR RETAINING VAPOR TRANSPARENT TARTRE PARTICLES
EP3156538B1 (en) 2015-10-12 2018-07-25 Rowenta Werke GmbH Iron comprising a steam chamber provided with two separate evaporation areas
FR3060032B1 (en) * 2016-12-13 2018-11-23 Seb S.A. STEAM IRONING APPARATUS COMPRISING A STEAM GENERATING BASE AND AN IRON CONNECTED THROUGH THEM BY A CONDUIT
CN207659747U (en) * 2017-12-05 2018-07-27 漳州灿坤实业有限公司 Steam generating iron

Also Published As

Publication number Publication date
EP3757281A1 (en) 2020-12-30
CN112144257A (en) 2020-12-29
FR3097882B1 (en) 2021-05-28
CN112144257B (en) 2023-12-19
FR3097882A1 (en) 2021-01-01

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