CN112144257B

CN112144257B - Iron equipped with an evaporation chamber provided with two heating resistors

Info

Publication number: CN112144257B
Application number: CN202010588498.3A
Authority: CN
Inventors: 弗雷德里克·科莱
Original assignee: SEB SA
Current assignee: SEB SA
Priority date: 2019-06-28
Filing date: 2020-06-24
Publication date: 2023-12-19
Anticipated expiration: 2040-06-24
Also published as: EP3757281B1; EP3757281A1; CN112144257A; FR3097882B1; FR3097882A1

Abstract

The invention relates to an iron (3) comprising an ironing soleplate comprising at least one steam outlet aperture (12) and a heating body (13), the heating body comprising a vaporisation chamber (16) connected to the at least one steam outlet aperture by a steam distribution circuit, the vaporisation chamber having a bottom wall (21) comprising a water injection zone in which water is injected to generate steam, the heating body comprising a first heating resistor (18) extending in a first zone of the bottom wall and a second heating resistor (19) extending in a second zone of the bottom wall, the first heating resistor having a curvature (18.3) extending between two connection ends (18A, 18B) for the supply of electricity to the first heating resistor, the second heating resistor having a curvature (19.3) extending between the two connection ends (19A, 19B) for the supply of electricity to the second heating resistor, characterized in that the first heating resistor and the second heating resistor are arranged head to foot, the curvature of the first resistor and the second resistor being arranged opposite to each other.

Description

Iron equipped with an evaporation chamber provided with two heating resistors

Technical Field

The present invention relates to the field of ironing devices, and in particular to the field of ironing devices comprising an iron equipped with a vaporization chamber.

Background

An iron is known from document EP3156538, comprising:

a heating body comprising an evaporation chamber having a flat bottom wall over which water flows for generating steam, the heating body may comprise a first heating resistor extending at the periphery of the bottom wall and a second heating resistor located in a central region of the bottom wall,

an ironing soleplate thermally and mechanically connected to said heating body, said ironing soleplate comprising an ironing surface and at least one steam outlet opening to said ironing surface, said ironing surface being parallel to said bottom wall,

-a steam distribution circuit fluidly connecting the evaporation chamber to at least one steam output aperture, and the steam generated by the evaporation chamber is used for flowing in the steam distribution circuit.

However, a drawback of such an iron is the fact that it has a relatively small surface evaporation chamber, which is combined with the U-shape of the two heating resistances arranged in parallel, so that when the flow of injected water becomes large, the exchange surface becomes insufficient to evaporate the water injected into the evaporation chamber, with the risk of water droplets splashing on the laundry to be ironed. In addition, such a small volume evaporation chamber may be quickly blocked by scale when the flow rate of the generated steam becomes large.

Disclosure of Invention

The present invention aims to remedy all or part of said drawbacks.

The technical problem underlying the present invention is in particular that of providing an iron comprising a vaporization chamber capable of having a large volume, which allows to generate a large flow of steam, while avoiding the risk of water droplets splashing on the laundry to be ironed.

To this end, the invention relates to an iron comprising an ironing soleplate comprising at least one steam output aperture and a heating body comprising an evaporation chamber connected to the at least one steam output aperture by a steam distribution circuit, the evaporation chamber having a bottom wall comprising a water injection zone in which water is injected to generate steam, the heating body comprising a first heating resistor extending in a first zone of the bottom wall and a second heating resistor extending in a second zone of the bottom wall, the first heating resistor having a curved portion extending between two connection ends for the supply of power to the first heating resistor and the second heating resistor having a curved portion extending between two connection ends for the supply of power to the second heating resistor, characterized in that the first heating resistor and the second heating resistor are arranged head to foot, the curved portions of the first resistor and the second resistor being arranged opposite to each other.

This configuration of the resistor allows to independently heat the two evaporation areas of the evaporation chamber, which can be distanced from each other, allowing a good uniformity of the temperature of the evaporation chamber with a large surface and of the bottom wall of the evaporation chamber.

Thus, it is possible to supply water to the evaporation chamber at a greater flow rate, while limiting the risk of forming a pool of water due to insufficient temperature of the bottom wall area of the evaporation chamber, thus limiting the risk of water droplets splashing on the laundry to be ironed. Therefore, the iron according to the present invention has an improved ironing efficiency.

The iron may also have one or more of the following features, alone or in combination.

According to an advantageous embodiment of the invention, the iron comprises adjustment means configured to independently adjust the power supply of the first heating resistor and the power supply of the second heating resistor.

According to an advantageous embodiment of the invention, the connection end of the first heating resistor protrudes from the side of the rear end of the heating body to the outside of the heating body, and the connection end of the second heating resistor protrudes from the side of the front end of the heating body to the outside of the heating body.

According to an advantageous embodiment of the invention, the iron comprises an adjusting device configured to adjust the supply of the second heating resistor by means of a temperature regulator mounted on an adjusting stud located at the rear of the evaporation chamber and to adjust the supply of the first heating resistor by means of an additional temperature regulator mounted on an additional adjusting stud located at the front of the evaporation chamber.

These arrangements allow to optimally adjust the temperature in the steam chamber and in particular to detect the position of a possible water spot in front of or behind the steam chamber in order to thereby activate the first or second heating resistor and to absorb this water spot by preferentially heating the rear or front area of the evaporation chamber without causing overheating in areas where there is no water spot.

According to an advantageous embodiment of the invention, the first heating resistor extends to the periphery of the bottom wall and the second heating resistor extends below the bottom wall.

According to an advantageous embodiment of the invention, the curved portion of the first heating resistor is arranged perpendicular to the additional adjusting stud when the ironing surface is resting on a horizontal support plane.

According to an advantageous embodiment of the invention, the first heating resistor comprises a first branch extending near a first side of the evaporation chamber and a second branch extending near a second side of the evaporation chamber, said second side being opposite to said first side.

According to an advantageous embodiment of the invention, the second heating resistor extends inside the first and second branches of the first heating resistor.

According to an advantageous embodiment of the invention, the first heating resistor and the second heating resistor have a cumulative power of more than 2400W.

According to an advantageous embodiment of the invention, the first heating resistor and/or the second heating resistor has a shape of substantially U, V or Ω.

According to an advantageous embodiment of the invention, the curved portion of the first heating resistor is located at the front of the evaporation chamber.

According to an advantageous embodiment of the invention, the curved portion of the second heating resistor is located at the rear of the evaporation chamber.

According to an advantageous embodiment of the invention, the first heating resistor extends in a first plane of extension and the second heating resistor extends in a second plane of extension substantially parallel to the first plane of extension.

According to an advantageous embodiment of the invention, the first heating resistor is located above the second heating resistor when the ironing surface is resting on a horizontal support plane. In other words, the first heating resistor is located at a higher level than the second heating resistor when the ironing surface rests on a horizontal support plane.

According to an advantageous embodiment of the invention, the heating body comprises a casting at least partially delimiting the evaporation chamber. Advantageously, the first heating resistor and the second heating resistor are integrated in the casting.

According to an advantageous embodiment of the invention, the heating body comprises a closing plate resting on the casting, the evaporation chamber being delimited by the casting and the closing plate.

According to an advantageous embodiment of the invention, the evaporation chamber is laterally delimited by a peripheral wall comprising a connection opening through which steam escapes from the evaporation chamber for entering a scale collection cavity comprising a scale collection container.

According to an advantageous embodiment of the invention, the bottom wall comprises an intermediate region extending between the first region and the second region, and the water filling region of the bottom wall comprises a surface configured to direct water flow over the water filling region towards the intermediate region when the iron is laid flat on the ironing base plate.

According to an advantageous embodiment of the invention, the supply of the second heating resistor is regulated by a temperature regulator mounted on a regulating stud arranged in the flow path of the water flow injected into the bottom wall by the water injection zone.

These arrangements allow the presence of a water spot to be detected very quickly at the adjustment stud and thus the power supply to the first heating resistor and/or the second heating resistor is adjusted by the temperature regulator to evaporate the water spot, thereby avoiding wetting of a scale collection container which may be located behind the evaporation chamber.

According to an advantageous embodiment of the invention, the adjusting stud deflects the water towards two lateral flow paths arranged on both sides of the adjusting stud.

Advantageously, the adjustment stud is located at the rear of the evaporation chamber. Advantageously, the curved portion of the second heating resistor is arranged perpendicular to the adjustment stud when the ironing surface rests on the horizontal support.

According to an advantageous embodiment of the invention, each lateral flow path is inclined towards the rear of the evaporation chamber. These arrangements facilitate a spreading of the water formed in the evaporation chamber to flow rearward of the evaporation chamber.

According to an advantageous embodiment of the invention, the intermediate zone comprises at least one holding chamber for holding a quantity of water.

According to an advantageous embodiment of the invention, the bottom wall comprises a blocking wall defining the downstream end of the holding chamber.

According to an advantageous embodiment of the invention, the holding chamber is arranged at the foot of the adjustment stud.

According to an advantageous embodiment of the invention, the bottom wall comprises two holding chambers, which are arranged on both sides of the adjusting stud.

According to an advantageous embodiment of the invention, the holding chamber is arranged above at least a part of the second heating resistor when the iron is laid flat on the ironing base plate.

According to an advantageous embodiment of the invention, the adjusting stud is arranged in the vicinity of the curved portion of the second heating resistor.

According to an advantageous embodiment of the invention, the adjusting stud is arranged near one branch of the first heating resistor.

According to an advantageous embodiment of the invention, the bottom wall comprises a raised surface configured to direct the flow of water over the raised surface towards the intermediate area.

According to an advantageous embodiment of the invention, the raised surface comprises a first portion of the wall inclined towards a first side edge of the bottom wall, a second portion of the wall inclined towards a second side edge of the bottom wall, and a longitudinal ridge connecting the first portion and the second portion of the wall. The longitudinal ridge may for example extend in a longitudinal mid-plane of the iron and may for example have a circular cross-section.

According to an advantageous embodiment of the invention, the heating body comprises a water filling opening which opens into the front of the evaporation chamber and is for example close to the front end of the bottom wall.

According to an advantageous embodiment of the invention, the water filling opening is located above the raised surface. These arrangements avoid accumulation of water in the portion of the evaporation chamber below the water injection zone in the evaporation chamber, thereby promoting evaporation of water fed into the evaporation chamber. Therefore, these arrangements further improve the ironing efficiency of the iron according to the invention.

According to an advantageous embodiment of the invention, the bottom wall has a top portion substantially below the water filling opening.

According to an advantageous embodiment of the invention, the bottom wall of the evaporation chamber has a generally quadrangular shape.

According to an advantageous embodiment of the invention, the second heating resistor extends at the periphery of the convex surface.

According to an advantageous embodiment of the invention, the second heating resistor comprises a first branch extending near a first side edge of the convex surface, and a second branch extending near a second side edge of the convex surface, said second side edge being opposite to said first side edge.

According to an advantageous embodiment of the invention, the water filling opening opens onto the region between the branches of the second resistor.

According to an advantageous embodiment of the invention, the steam distribution circuit comprises a scale collection chamber, and the iron comprises a scale collection container arranged in the scale collection chamber.

According to an advantageous embodiment of the invention, the scale collection container is configured to collect scale particles from the evaporation chamber.

According to an advantageous embodiment of the invention, the scale collection container is removable.

According to an advantageous embodiment of the invention, the scale collection chamber is arranged behind the evaporation chamber.

According to an advantageous embodiment of the invention, the scale collection chamber comprises a drain hole closed by a removable plug, which is accessible from the outside of the iron.

According to an advantageous embodiment of the invention, the discharge opening is arranged behind the iron.

According to an advantageous embodiment of the invention, the scale collection container is integrally connected to a removable plug.

According to an advantageous embodiment of the invention, the scale collection chamber is connected to the evaporation chamber through a connection opening leading to the rear end of the evaporation chamber.

According to an advantageous embodiment of the invention, the scale collection container comprises a filter element having a through hole configured to hold scale particles entrained by the flowing steam in the steam distribution circuit. Advantageously, each through hole has a dimension comprised between 0.05mm and 0.5 mm.

According to an advantageous embodiment of the invention, the steam distribution circuit comprises at least one exhaust channel leading into the scale collection chamber, said at least one exhaust channel being fluidly connected to the at least one steam output aperture. Advantageously, at least one exhaust passage is located downstream of the filter element.

According to an advantageous embodiment of the invention, the steam distribution circuit comprises two exhaust channels, one on each side of the connection opening.

According to an advantageous embodiment of the invention, the steam distribution circuit comprises a distribution chamber arranged below the heating body, said steam distribution chamber fluidly connecting the at least one exhaust channel to the at least one steam output aperture.

According to an advantageous embodiment of the invention, the temperature regulator and the additional temperature regulator are made of a temperature sensor and an additional temperature sensor, respectively, which are connected to the microcontroller.

The invention also relates to an ironing device comprising an iron according to the invention, a water tank and a supply circuit, said supply circuit being fluidly connected to the water tank and configured to supply water to the evaporation chamber.

According to an advantageous embodiment of the invention, the supply circuit comprises a water conduit fluidly connecting the water tank to the evaporation chamber.

According to an advantageous embodiment of the invention, the ironing device comprises a base on which the iron is arranged during an inactive phase of ironing.

According to an advantageous embodiment of the invention, the base comprises a water tank.

According to an advantageous embodiment of the invention, the supply circuit comprises a supply pump configured to supply water from the water tank to the evaporation chamber. Advantageously, the supply pump is integrated in the base.

Drawings

The invention will be better understood by means of the following description, with reference to the accompanying drawings, which show, by way of non-limiting example, an embodiment of the ironing device.

Fig. 1 is a perspective view of an ironing apparatus according to the present invention.

Fig. 2 is a partial perspective view of an iron of the ironing device of fig. 1.

Fig. 3 is a partial perspective view of the iron of fig. 2.

Fig. 4 is a partial top view of the iron of fig. 2.

Fig. 5 is a cross-sectional view taken along line V-V of fig. 4.

Fig. 6 is a cross-sectional view taken along line VI-VI of fig. 4.

Fig. 7 is a cross-sectional view taken along line VII-VII of fig. 4.

Fig. 8 is a cross-sectional view taken along line VIII-VIII of fig. 4.

Fig. 9 is a cross-sectional view taken along line IX-IX of fig. 4.

Fig. 10 is a top view of the first heating resistor and the second electric heating resistor shown separately.

Detailed Description

Fig. 1 to 9 show an ironing device 2, which ironing device 2 comprises an iron 3 and a soleplate 4, the iron 3 being arranged on the soleplate 4 during an inactive phase of ironing.

The ironing device 2 further comprises a water tank 5, which is integrated in the base 4 and may be removable, for example, and a supply circuit fluidly connected to the water tank 5. The supply circuit comprises, inter alia, a water conduit 6 fluidly connecting the water tank 5 to the iron 3, and a water supply pump (not shown in the figures) integrated in the soleplate 4 and configured to supply water from the water tank 5 to the iron 3.

The iron 3 comprises a housing 7 and an ironing base plate 9, the housing 7 comprising a grip portion 8 at its upper end, the ironing base plate 9 being provided with a substantially flat ironing surface 11 and a plurality of steam output holes 12 leading to the ironing surface 11.

As shown more particularly in fig. 2, the iron 3 further comprises a heating body 13, which heating body 13 is integrated in the lower part of the housing 7 and is thermally and mechanically connected to the ironing base plate 9. The heating body 13 comprises a casting 14, for example made of aluminium, and a closing plate 15 resting on the casting 14.

The heating body 13 also comprises an evaporation chamber 16 of the instantaneous evaporation type, delimited by the casting 14 and by the closing plate 15. The casting 14 more particularly includes a peripheral wall 17 that laterally defines the evaporation chamber 16. Advantageously, the interior of the evaporation chamber 16 is at least partially, e.g. almost entirely, covered by the anti-fouling coating.

The heating body 13 further comprises a first heating resistor 18 and a second heating resistor 19 integrated in the casting 14. Preferably, the first heating resistor 18 and the second heating resistor 19 have a shape of approximately U, V or Ω.

In fig. 10, it can be seen in more detail that the first heating resistor 18 and the second heating resistor 19 are shown separately. The first heating resistor 18 comprises a first branch 18.1 extending near a first side of the evaporation chamber 16 and a second branch 18.2 extending near a second side of the evaporation chamber 16, the first branch 18.1 and the second branch 18.2 being connected to each other by a curved connecting portion 18.3.

The second heating resistor 19 extends inside the first branch 18.1 and the second branch 18.2 of the first heating resistor 18. The second heating resistor 19 further comprises a first branch 19.1 extending near a first side of the evaporation chamber 16 and a second branch 19.2 extending near a second side of the evaporation chamber 16, the first branch 19.1 and the second branch 19.2 being connected to each other by a curved connecting portion 19.3.

More specifically, according to the present invention, the first heating resistor 18 and the second heating resistor 19 are arranged head-to-foot.

In order to allow the power supply to the first heating resistor 18 and the second heating resistor 19, the first heating resistor 18 includes two connection ends 18A, 18B protruding outside the casting 14 on the side of the rear end of the heating body 13, and the second heating resistor 19 includes two connection ends 19A, 19B protruding outside the casting 14 on the side of the front end of the heating body 13.

Preferably, the cumulative power of the first heating resistor 18 and the second heating resistor 19 is greater than 2400W. As an example, the first heating resistor 18 may have an electric power of about 2000W, while the second heating resistor 19 may have an electric power of about 1000W, such a distribution of power allowing to balance the density of the power according to the respective lengths of the two heating resistors so as to reach a total power of 3000W.

Advantageously, the first heating resistor 18 extends in a first plane of extension and the second heating resistor 19 extends in a second plane of extension substantially parallel to the first plane of extension and preferably substantially parallel to the plane in which the ironing surface 11 lies.

According to the embodiment shown in the figures, the first heating resistor 18 is located at a higher level than the second heating resistor 19 when the ironing surface 11 rests on a horizontal support.

The evaporation chamber 16 comprises a bottom wall 21 over which water flows to generate steam, which bottom wall advantageously has a plurality of pyramidal studs protruding on the bottom wall 21 in order to increase the heat exchange area. The bottom wall 21 has a substantially quadrangular shape and advantageously comprises a raised surface 22 located in a central longitudinal area of the bottom wall 21. The convex surface 22 is more specifically convex in a transverse direction D1, which transverse direction D1 extends transversely to the longitudinal direction D2 of the iron 3.

According to the embodiment shown in the drawings, the raised surface 22 is symmetrically arranged with respect to the longitudinal mid-plane of the iron 3 and comprises a first wall portion 22.1 inclined towards a first side edge of the bottom wall 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 wall portion 22.1 and the second wall portion 22.2. The longitudinal ridge 22.3 may for example extend in a longitudinal mid-plane of the iron 3 and may for example have a circular cross-section.

Advantageously, the first heating resistor 18 extends in a first region of the bottom wall 21 located at the periphery of the bottom wall 21, while the second heating resistor 19 extends in a second region of the bottom wall 21 located at the periphery of the raised surface 22. In other words, the first heating resistor 18 extends at the periphery of the bottom wall 21, and the second heating resistor 19 extends at the periphery of the convex surface 22.

The bottom wall 21 further comprises an intermediate region 23 extending between the first and second regions of the bottom wall 21, the intermediate region 23 thus extending between the raised surface 22 and the periphery of the bottom wall 21. The intermediate region 23 more specifically comprises two lateral flow paths 23.1, 23.2 extending between the first and second heating resistances, each lateral flow path being inclined towards the rear of the evaporation chamber 16, and the convex surface 22 being configured to direct the water flow on the convex surface 22 towards the two lateral flow paths 23.1, 23.2.

The heating body 13 further comprises an adjusting stud 24 at the rear end of the evaporation chamber 16 between the two lateral flow paths 23.1, 23.2, each lateral flow path 23.1, 23.2 being inclined to the rear of the evaporation chamber 16, i.e. to the adjusting stud 24. The two lateral flow paths 23.1, 23.2 are advantageously located below the contour of the raised surface 22 at the rear of the evaporation chamber 16, so as to form a height difference (marche) between the bottom of the two lateral flow paths 23.1, 23.2 and the contour of the raised surface 22. The rear end of the evaporation chamber 16 has two blocking walls 20 protruding laterally on the bottom wall 21 of the evaporation chamber 16, which blocking walls 20 keep the water flowing along the lateral flow paths 23.1, 23.2 between the adjusting stud 24 and the peripheral wall 17, so that a holding chamber 27 is formed upstream of the blocking walls 20.

As shown more particularly in fig. 2 and 3, an adjustment stud 24 is formed from the casting 14 and is located at the rear of the raised surface 22 with the upper end of the adjustment stud extending through the closure plate 15. According to the embodiment shown in the figures, the iron 3 comprises a temperature regulator (not shown) mounted on the adjustment stud 24, and the bottom wall 21 is configured to direct the flow of water on the bottom wall 21 towards the adjustment stud 24 and the intermediate area 23.

The heating body 13 also comprises an additional adjusting stud 26 at the front of the evaporation chamber 16. Advantageously, the additional adjustment stud 26 is located vertically above the curved end of the first heating resistor 18 and the adjustment stud 24 is located above the curved end of the second heating resistor 19. As shown in more detail in fig. 2 and 3, additional adjustment studs 26 are formed from the casting 14 and extend through the closure plate 15. According to the embodiment shown in the figures, the iron 3 comprises an additional temperature regulator (not shown) mounted on an additional regulating stud 26.

The iron 3 advantageously comprises a regulating device (not shown in the figures) of the microcontroller type, configured to regulate the power supply of the first heating resistor 18 by means of an additional thermostat mounted on an additional regulating stud 26 located in front of the steam chamber 16, and to regulate the power supply of the second heating resistor 19 by means of a thermostat mounted on a regulating stud 24 located behind the steam chamber 16.

The heating body 13 further comprises a water filling port 28 which is fluidly connected to the supply pump and which opens into the front of the evaporation chamber 16, and for example near the front end of the bottom wall 21. Thus, the supply pump is configured to supply water from the water tank 5 to the evaporation chamber 16 at a pressure of greater than 500Pa, the assembly being adapted to produce a steam flow of greater than 60gr/min according to a standardized cycle of evaporation for 5 seconds, stopping for 15 seconds.

Advantageously, a water filling port 28 is provided in the closing plate 15 and opens into the evaporation chamber 16, above the water filling zone located near the front end of the bottom wall 21, and between the branches of the second heating resistor 19. Advantageously, the bottom wall 21 has a top substantially below the water filling opening 28.

The iron 3 further comprises a steam distribution circuit 29 defined by the casting 14 and the closing plate 15, which fluidly connects the evaporation chamber 16 to the steam output aperture 12, so that steam generated in the evaporation chamber 16 can flow to the steam output aperture 12.

The steam distribution circuit 29 comprises, inter alia, a scale collection chamber 31 comprising a drain hole 32 closed by a removable plug 33, which is accessible from the outside of the iron 3. Advantageously, the drain hole 32 opens onto the rear surface of the housing 7 of the iron 3.

The scale collection chamber 31 is disposed behind the evaporation chamber 16 and is connected to the evaporation chamber 16 through a connection opening 34 to the rear end of the evaporation chamber 16. The scale collection chamber 31 is advantageously located in a portion of the housing 7 protruding (porte-a-faux) behind the ironing shoe 9 when the iron 3 is resting on the ironing shoe 9.

The iron 3 further comprises a scale collection container 35, which is for example removably mounted in the scale collection chamber 31. The scale collection container 35 is configured to collect scale particles from the evaporation chamber 16. When the ironing soleplate 9 is tilted with respect to the horizontal plane, and for example when the iron 3 is resting on the soleplate 4, these scale particles may fall from the evaporation chamber 16 by gravity, and may also be entrained by steam from the evaporation chamber 16. Advantageously, the scale collection reservoir 35 is integrally connected to the removable plug 33.

The scale collection vessel 35 may optionally include a filter element having a through-hole configured to retain scale particles entrained by the steam flowing in the steam distribution circuit. Advantageously, each through hole has a dimension comprised between 0.05mm and 0.5 mm.

Preferably, the steam distribution circuit 29 comprises two exhaust channels 25 symmetrically arranged on either side of the connection opening 34, which two exhaust channels 25 connect the scale collection chamber 31 to a steam distribution chamber arranged below the heating body 13, as can be seen in fig. 8, to supply the steam output holes 12 of the ironing base plate 9.

When water is injected into the evaporation chamber 16 of the iron 3 through the water filling port 28, a portion of the injected water is evaporated by contacting the raised surface 22 located below the water filling port 28, and when the non-evaporated water is guided by the raised surface 22 towards the adjusting stud 24 and the two lateral flow paths 23.1, 23.2, the adjusting stud 24 forms an obstacle preventing the water from directly flowing towards the connection opening 34 formed at the rear of the evaporation chamber 16. The unevaporated water then flows along the two lateral flow paths 23.1, 23.2 and to the rear of the evaporation chamber 16 in the form of a spread of water, in particular under the combined action of gravity (the lateral flow paths being inclined backwards) and the resistance associated with the flow of steam to the connection opening 34.

When a water spot reaches the blocking wall 20 (via either of the two lateral flow paths 23.1, 23.2), this water spot is blocked in a holding chamber 27 formed upstream of the blocking wall, at the foot of the adjustment stud 24, to lower the temperature of the adjustment stud 24, which allows the temperature regulator to inform the adjustment device to activate the supply of power to the second heating resistor 19. The thermal power absorbed by this spreading water located very close to the first heating resistor 18 and the second heating resistor 19 allows to absorb a volume of spreading water, the presence of the blocking wall 20 allowing to prevent water from being entrained to the connection opening 34 and thus to the scale collection container 35.

In addition, scale particles formed in the evaporation chamber 16 are entrained by this movement of the spreading water to the rear of the evaporation chamber 16, and are entrained by the steam flow under the effect of the entraining force, the direction in which the scale particles are entrained being in the direction towards the connection opening 34 and the scale collection container 35. Thus, the scale particles are collected by the scale collection container 35.

Of course, the invention is in no way limited to the embodiments described and shown, which are given by way of example only. Modifications are still possible, in particular from the point of view of the construction of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Thus, in an alternative embodiment, not shown, water may be injected into the evaporation chamber drop by drop through a screw hole (boisseau), the water from the container being supplied by gravity rather than by a pump.

Claims

1. An iron (3) comprising an ironing soleplate comprising at least one steam outlet aperture (12) and a heating body (13), the heating body comprising an evaporation chamber (16), the evaporation chamber (16) being connected to the at least one steam outlet aperture (12) by a steam distribution circuit, the evaporation chamber (16) having a bottom wall (21) comprising a water injection zone in which water is injected to generate steam, the heating body (13) comprising a first heating resistor (18) extending in a first zone of the bottom wall (21) and a second heating resistor (19) extending in a second zone of the bottom wall (21), the first heating resistor (18) having a curved portion extending between two connection ends (18A, 18B) for the supply of electricity to the first heating resistor, and the second heating resistor (19) having a curved portion extending between two connection ends (19A, 19B) for the supply of electricity to the second heating resistor, characterized in that the connection ends of the first heating resistor (18) and the curved portion of the second heating resistor (19) are arranged opposite to each other.

2. An iron (3) as claimed in claim 1, characterized in that the iron (3) comprises an adjustment device configured to independently adjust the power supply of the first heating resistor (18) and the power supply of the second heating resistor (19).

3. Iron (3) according to any one of claims 1 to 2, characterized in that the connection ends (18A, 18B) of the first heating resistor (18) protrude from the side of the rear end of the heating body (13) to the outside of the heating body (13), and in that the connection ends (19A, 19B) of the second heating resistor (19) protrude from the side of the front end of the heating body (13) to the outside of the heating body (13).

4. An iron (3) as claimed in claim 3, characterized in that it comprises adjustment means configured to adjust the supply of electricity to the second heating resistor (19) by means of a temperature regulator mounted on an adjustment stud (24) located at the rear of the evaporation chamber (16) and to adjust the supply of electricity to the first heating resistor (18) by means of an additional temperature regulator mounted on an additional adjustment stud (26) located at the front of the evaporation chamber (16).

5. An iron (3) according to any one of claims 1-2, characterized in that the first heating resistor (18) extends to the periphery of the bottom wall (21) and the second heating resistor (19) extends below the bottom wall (21).

6. An iron (3) according to any one of claims 1 to 2, characterized in that the first heating resistor (18) comprises a first branch (18.1) extending near a first side of the evaporation chamber (16) and a second branch (18.2) extending near a second side of the evaporation chamber (16), the second side being opposite to the first side.

7. An iron (3) as claimed in claim 6, characterized in that the second heating resistor (19) extends inside the first branch (18.1) and the second branch (18.2) of the first heating resistor (18).

8. An iron (3) according to any one of claims 1 to 2, characterized in that the first heating resistor (18) and the second heating resistor (19) have a cumulative power of more than 2400W.

9. An iron (3) according to any one of claims 1 to 2, characterized in that the evaporation chamber (16) is laterally delimited by a peripheral wall (17) comprising a connection opening (34) through which steam escapes from the evaporation chamber (16) to enter a scale collection chamber (31) comprising a scale collection container (35).

10. An iron (3) according to any one of claims 1-2, characterized in that the bottom wall (21) comprises an intermediate region (23) extending between the first and second regions, the water injection region of the bottom wall (21) comprising a surface (22), the surface (22) being configured to direct water flow over the water injection region towards the intermediate region (23) when the iron is laid flat on the ironing base plate (9).

11. An iron (3) according to claim 10, characterized in that the power supply of the second heating resistor (19) is regulated by a temperature regulator mounted on a regulating stud (24) arranged in the flow path of the water flow injected into the bottom wall (21) by the water injection zone.

12. An iron (3) as claimed in claim 11, characterized in that the intermediate zone (23) comprises at least one holding chamber (27) for holding a quantity of water.

13. Iron (3) according to claim 12, characterized in that the holding cavity (27) is provided at the foot of the adjustment stud (24).

14. An iron (3) as claimed in claim 12, wherein the adjustment stud (24) is arranged in the vicinity of the curved portion of the second heating resistor (19).

15. Ironing device (2) comprising an iron (3) according to any of the preceding claims, a water tank (5) and a supply circuit fluidly connected to the water tank and configured to supply water to the evaporation chamber (16).