WO1996017122A1 - Fer a repasser multizones et methode de regulation thermique de la partie chaude - Google Patents
Fer a repasser multizones et methode de regulation thermique de la partie chaude Download PDFInfo
- Publication number
- WO1996017122A1 WO1996017122A1 PCT/FR1995/001555 FR9501555W WO9617122A1 WO 1996017122 A1 WO1996017122 A1 WO 1996017122A1 FR 9501555 W FR9501555 W FR 9501555W WO 9617122 A1 WO9617122 A1 WO 9617122A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- zone
- heating element
- iron according
- thermal
- heating
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F75/00—Hand irons
- D06F75/08—Hand irons internally heated by electricity
- D06F75/24—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat
Definitions
- the present invention relates to the general technical field of devices designed to ensure the shaping of a textile article such as a garment, by subjecting it to the combined action of a heat treatment, a mechanical ironing treatment. and steam treatment.
- the present invention relates to an electric steam iron comprising a hot part comprising a soleplate and a vaporization chamber, said hot part of the iron being subdivided into at least two thermal zones, each of them being provided with a heating element and associated with a regulatory body.
- the thermal energy transmitted to the ironing sole is conventionally provided by heating elements such as tubular heating elements, or by heating elements of the flat type including a resistive track.
- the resistive track forms a heating circuit defining a heating zone on the ironing sole, said track being inserted between two films of electrical insulator adhering against each other and now also holding the resistive track in place.
- regulation means or temperature sensors for example a thermostat, disposed in the iron in thermal relation with the heating element.
- the thermostat or any other regulating or temperature control member is arranged in thermal relation with the heating element in a previously chosen zone and often as close as possible to the zone identified as being the most hot at the sole. Indeed, care should be taken to avoid or at least to limit the classic phenomenon of overshoot frequently occurring on irons.
- Such a phenomenon occurs when the regulating or controlling member of the temperature only records or controls a thermal image of the heating element which is offset in time and / or in space. This occurs when the thermostat is for example located in an area too far from the heating element, so that the thermostat is triggered at the right set temperature but too late, at least a portion of the ironing soleplate is already at a temperature higher than the set temperature.
- this classic phenomenon of thermal dysfunction it is consequently well known to systematically fix the temperature regulation or control members in the region of the heating element known to be the hottest.
- the French patent application No. 2,691,723 discloses a household apparatus including an iron board in which the temperature control is improved.
- a heating element including at least one resistive track forming a heating circuit delimiting a heating surface, and a member temperature regulation or control arranged in thermal relation with said heating element, said heating surface comprising at least one local overheating zone opposite which is arranged the temperature regulation or control member.
- the regulation / heating circuit is unique. Therefore, the associated regulatory body can only have a partial picture of the temperature of the soleplate. This is the temperature prevailing at the precise place where this regulating member is fixed. This member therefore activates the heating element when the temperature of the point on which it is fixed drops below a set value, without taking account of the temperature differences which exist between different points of the soleplate.
- Irons are also known, the sole of which has two thermal zones, each comprising a heating element.
- Document GB-2 006835 describes such an iron, comprising a front zone and a rear zone. This configuration aims to compensate for the significant thermal losses suffered by the frontal region, by general in high demand.
- thermography In the case of steam irons where a heating element is associated with the vaporization chamber (generally unique serving both to provide the heat energy for the vaporization of water and to heat the soleplate), the applicant has found and demonstrated by thermography that the part of the sole located under the vaporization chamber is substantially cooler than the rest of the surface of the sole, in particular during the vaporization operation. This situation is troublesome since it is generally desired that the surface of the soleplate of the iron reaches its optimum temperature at the time when the steam is emitted.
- the object of the invention is therefore to produce an iron such that the temperature of several different zones of the hot part of the iron, either of the soleplate and / or of the vaporization chamber, can be managed selectively. It will thus be possible, by construction, by having as many thermal regulation members and by appropriately managing these regulations, eliminating or attenuating the cold zone situated below the vaporization chamber. This will create a sole capable of vaporizing water while maintaining a temperature that is adapted in all respects to the fabric. In addition, we can optimize the performance of the vaporization chamber and make an iron capable of vaporizing large quantities of water (greater than 30 grams / minute) and steam iron synthetic textiles for which the temperature of the sole in contact with the laundry must remain close to 100 * C.
- Another object of the invention consists in proposing an iron, the sole of which has several temperature zones which can be managed independently so as to be able to be situated at different temperature levels with respect to one another.
- an electric steam iron comprising a hot part comprising a soleplate and a vaporization chamber, said hot part of the iron being subdivided into at least two thermal zones A, B, C, each of them having a heating element and associated with a regulating member characterized on the one hand in that a first zone A comprises at least one surface corresponding substantially to the vaporization chamber and on the other hand in that a second zone B comprises at least one surface corresponding substantially to the portion of the sole located under the chamber.
- the heat losses due to vaporization are thus compensated for by the heating element arranged between the vaporization chamber and the soleplate.
- This element avoids the creation of a cold zone under the vaporization chamber in the event that it absorbs a large amount of thermal energy.
- the regulating member associated with zone B is provided for activating the heating element associated with zone B in particular during vaporization. Since the risk of the cold zone appearing is greatest at the time of vaporization, the risk is eliminated by providing additional thermal energy at the most critical time.
- At least one of said heating elements is associated with a mechanical and / or electronic vaporization control.
- this heating element is that corresponding to zone B located under the vaporization chamber. This control mode ensures that the thermal energy of the soleplate will not be absorbed by the vaporization process. The user does not have to worry about the temperature of the soleplate, the heating being controlled automatically during spraying.
- the first zone A also comprises at least a portion of the surface corresponding substantially to the portion of the sole not covered by said chamber. vaporization.
- the portion of soleplate situated, for example at the rear of the vaporization chamber can be brought to temperature, without necessarily stressing the second heating element continuously.
- the hot part comprises a third thermal zone C provided with a heating element and associated with a regulating member, said zone being preferably arranged near the peripheral edge of the sole.
- the second heating element is substantially flat. It is then easy to integrate it into the reduced space located between the vaporization chamber and the soleplate.
- the aims of the invention are also achieved by means of a thermal regulation method for an electric steam iron, in which the heating element is regulated so as to avoid the formation of a cold zone at the level of the sole, in particular during vaporization.
- the heating of zone A is ensured by a first heating element and that of zone B both by the first heating element and by a second separate heating element.
- the second heating element thus serves as an auxiliary heating means.
- the heating of zone A is ensured by a first separate heating element and that of zone B by a second separate heating element.
- This regulation mode allows great flexibility in managing the thermal map of the sole.
- the present invention also relates to the characteristics which will emerge during the following description, and which should be considered in isolation or in all their possible technical combinations.
- FIG. 1 is a schematic sectional view of the hot part of an iron according to the invention
- FIG. 2 is a partial bottom view of an iron according to FIG. 1,
- FIG. 3 is a partial bottom view of an iron according to an alternative embodiment of the thermal zones of the hot part.
- a vaporization chamber 4 is shaped in the hot part 1 of the iron.
- a first heating element 2, preferably tubular, is inserted by overmolding, by fitting into a groove, or by any other means on a support 3.
- This support 3 is most often made of cast aluminum, but it is obvious that this material may be replaced by any other material whose conductivity characteristics are advantageous.
- This support 3 further delimits the vaporization chamber 4.
- This chamber communicates in a conventional manner with a reservoir (not shown) supplying the water necessary for the production of steam.
- a reservoir not shown
- the vaporization chamber can also be connected to a steam generator external also of known type.
- a regulating member 8 or thermostat cooperates thermally with the vaporization chamber 4.
- This regulating member controls the first heating element 2.
- This heating element 2 is supplied via an electrical power source 9 so as to supply the heat energy required on the one hand for the vaporization of water and on the other hand for the heating of the sole.
- This first heating element acts in particular on an area “A” of the hot part corresponding substantially to the vaporization chamber and possibly to another portion of the soleplate, not covered by the vaporization chamber (FIGS. 1 and 2).
- the rear portion of the soleplate not covered by the vaporization chamber is designated A when it is brought to temperature by the same heating element as zone A, and A ′ when it has an element separate heater.
- the hot part 1 has at its lower part another heating element 11 preferably flat, defining a zone “B” corresponding substantially to the portion of the soleplate located under the chamber 4.
- the heating element flat 11 is housed in a recess 10 formed between the support 3 and the sole 7.
- the heating element of zone “B” is intended to compensate for the “heat losses” caused by vaporization, tending to cause at least partial cooling of this zone.
- the flat heating element 11 is controlled by the regulating member or thermostat 12 independently of the aforementioned thermostat 8 of the vaporization chamber 4.
- the regulation can also be carried out electronically.
- the regulation can allow the heating of the zone "B” entirely independently of the zone "A", or even in addition to the heating element 2 when necessary, in particular during vaporization.
- a complementary regulating member 8a arranged at the level of the “A” part of the sole, can complete the regulation of the “A” zone, for example to avoid exceeding certain given temperature limits.
- the flat heating element 11 is preferably flexible and produced according to a conventional technique. It includes at least one resistive track made of any material that is a good heat conductor, such as aluminum, copper, constantan, for example said track forming a heating circuit whose outer envelope internally delimits a heating surface.
- the resistive track is in a manner known per se inserted between two films of electrical insulating adherent one on the other for example by gluing and holding the track in place.
- the electrical insulating films can be chosen from all the known insulating materials such as PVC, polyester, polyamide, silicone, micanite, etc.
- the heating element is substantially flat.
- a traditional heating element for example, of the tubular type.
- the heating element shown is intended to be integrated into an iron by bonding between the ironing soleplate itself and an upper support plate.
- the hot part 1 of the iron is in fact subdivided into two zones "A” and “B", preferably mechanically secured to one another.
- the arrangement is provided so that the different zones are preferably substantially thermally independent: zone “A” being provided with a separate heating element 11 which is specific to it, associated with a regulating member 12 independent of the regulation 8 of the heating element 2 of the zone “B". It is then possible to selectively manage the temperature of said zones “A” and “B” independently of one another, as a function of a thermal mapping of the desired sole.
- it is advantageous that the two defined thermal zones are not isolated from each other, in order to facilitate heat transfers. This configuration allows the flat heating element 11 to be used only as a backup.
- the heating element under the vaporization chamber can be activated only during vaporization in order to avoid the creation of the cold zone previously described. Outside the vaporization period, the heating element associated with the vaporization chamber then also heats the entire soleplate.
- the control of the heating element 11 can also be associated with a mechanical and / or electronic vaporization control.
- the zones “A” and “B” are substantially isolated from one another; the zone “B” can then be brought to temperature only by the heating element 11 associated with this zone.
- the heating element 11 disposed under the chamber 4 is maintained at a fixed temperature, or is controlled by a regulating member 12 as described above.
- the heating element 11 disposed under the chamber 4 and / or the heating element 2 of the vaporization chamber are energized alternately by means of a detection device (not shown) of the presence of the operator's hand, so as to ensure their operation only during the working period, excluding the rest periods of the adopted ironing cycle.
- the heating element 2 of the vaporization chamber 4 is regulated either according to a fixed setpoint, or according to a variable setpoint decided by the operator, or linked to a physical quantity.
- the heating element 11 located under the vaporization chamber 4 is a flat heating element while the heating element 2 located in the vaporization chamber 4 is a tubular heating element.
- the hot part 1 always includes a first zone A corresponding substantially to the vaporization chamber 4, but the sole 7 comprises two thermal zones "A" and “B” located respectively at I 'rear and I' front of said sole 7 to which is added a third thermal zone "C" arranged near its peripheral edge 22, each of said zones "A", “A”, “B” and “C” being high in temperature by means of separate heating elements 11, 13, 20 and 2, controlled independently of one another by the regulating members respectively 12, 14, 21, 8, according to the temperature map of the desired sole.
- the different thermal zones "A 1 ", "B” and / or “C” of the heating circuit of the sole 7 include flat heating elements 11, 13, 20 attached to the sole 7, either directly or via an attached plate.
- the different thermal zones "A", "B” and / or “C” of the heating circuit of the sole 7 can also include tubular heating elements (not shown) attached to the sole 7 either directly or by means of an attached plate.
- the different thermal zones "A”, “A '", “B” and or “C” of the sole heating circuit can also include flat heating elements 11, 13 and / or tubular.
- the regulating bodies 12, 14, 21, 8, of the different elements heaters are connected to servo means able to allow programming of the temperature gradients chosen as a function of the different zones of the sole 7 in order to modulate the ironing temperature according to the fabrics.
- the means implemented by the invention and which have just been described above can make it possible, on the one hand, to avoid the cold zone situated under the vaporization chamber, and on the other hand to obtain both a perfectly uniform temperature of the soleplate of the iron and a rigorous control of zones of deliberately different temperatures, for example to achieve a front attack zone hotter than a rear zone.
- the present invention finds its application in the production of an electric steam iron comprising a hot part 1 comprising a soleplate 7 and a vaporization chamber 4, said hot part 1 of the iron being subdivided into at least two thermal zones A, B, C, each of them being provided with a heating element 11, 13, 20 and associated with a regulating member 12, 14, 21.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Irons (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/836,810 US5864122A (en) | 1994-11-25 | 1995-11-24 | Multizone laundry iron and method for the thermal regulation of the hot part |
CA002206136A CA2206136C (fr) | 1994-11-25 | 1995-11-24 | Fer a repasser multizones et methode de regulation thermique de la partie chaude |
JP8518329A JPH10509889A (ja) | 1994-11-25 | 1995-11-24 | マルチゾーン・アイロンおよび加熱部分の熱調節方法 |
EP95941141A EP0793745B1 (fr) | 1994-11-25 | 1995-11-24 | Fer a repasser multizones et methode de regulation thermique de la partie chaude |
DE69516168T DE69516168T2 (de) | 1994-11-25 | 1995-11-24 | Multizonig beheiztes bügeleisen und verfahren zur temperaturregelung des heissen teiles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR94/14417 | 1994-11-25 | ||
FR9414417A FR2727439B1 (fr) | 1994-11-25 | 1994-11-25 | Fer a repasser multizones |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996017122A1 true WO1996017122A1 (fr) | 1996-06-06 |
Family
ID=9469352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1995/001555 WO1996017122A1 (fr) | 1994-11-25 | 1995-11-24 | Fer a repasser multizones et methode de regulation thermique de la partie chaude |
Country Status (8)
Country | Link |
---|---|
US (1) | US5864122A (fr) |
EP (1) | EP0793745B1 (fr) |
JP (1) | JPH10509889A (fr) |
CA (1) | CA2206136C (fr) |
DE (1) | DE69516168T2 (fr) |
ES (1) | ES2146790T3 (fr) |
FR (1) | FR2727439B1 (fr) |
WO (1) | WO1996017122A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2766502B1 (fr) * | 1997-07-22 | 1999-09-17 | Seb Sa | Fer comportant deux moyens de chauffe avec un mode d'asservissement en temperature particulier |
CN101072911B (zh) * | 2004-11-11 | 2011-06-08 | 皇家飞利浦电子股份有限公司 | 具有两个用于加热底板的平坦电阻式加热元件的蒸汽熨斗 |
US8089030B2 (en) * | 2005-01-18 | 2012-01-03 | Marvel Concepts, Llc | Bucky warmer with holder |
AU2006202065B2 (en) * | 2005-06-28 | 2010-09-02 | Newell Australia Pty Ltd | An iron |
US7926208B2 (en) * | 2007-02-12 | 2011-04-19 | Applica Consumer Products, Inc. | Fast heat/fast cool iron with steam boiler |
RU2655224C2 (ru) * | 2013-07-25 | 2018-05-24 | Конинклейке Филипс Н.В. | Устройство для генерации пара |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3110975A (en) * | 1960-11-30 | 1963-11-19 | Landers Frary & Clark | Steam iron with dual heating means |
GB2006835A (en) * | 1977-10-31 | 1979-05-10 | Braun Ag | Improvements in or Relating to Irons |
DE4107236A1 (de) * | 1991-03-07 | 1992-09-10 | Braun Ag | Dampfbuegeleisen |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2345413A (en) * | 1941-05-20 | 1944-03-28 | Westinghouse Electric & Mfg Co | Steam iron |
US2970394A (en) * | 1958-10-29 | 1961-02-07 | Eugene S Brumbaugh | Electric iron |
JPS6044798U (ja) * | 1983-09-05 | 1985-03-29 | 株式会社 星和電機 | スチ−ムアイロン |
NL8600048A (nl) * | 1986-01-13 | 1987-08-03 | Philips Nv | Stoomstrijkijzer. |
US5380983A (en) * | 1993-07-12 | 1995-01-10 | Black & Decker Inc. | Electrical appliance having user proximity sensor |
US5595672A (en) * | 1994-05-19 | 1997-01-21 | Pentalpha Enterprises Ltd. | Automatic power interrupting apparatus for an electric appliance |
-
1994
- 1994-11-25 FR FR9414417A patent/FR2727439B1/fr not_active Expired - Fee Related
-
1995
- 1995-11-24 ES ES95941141T patent/ES2146790T3/es not_active Expired - Lifetime
- 1995-11-24 DE DE69516168T patent/DE69516168T2/de not_active Expired - Fee Related
- 1995-11-24 JP JP8518329A patent/JPH10509889A/ja active Pending
- 1995-11-24 EP EP95941141A patent/EP0793745B1/fr not_active Expired - Lifetime
- 1995-11-24 WO PCT/FR1995/001555 patent/WO1996017122A1/fr active IP Right Grant
- 1995-11-24 CA CA002206136A patent/CA2206136C/fr not_active Expired - Fee Related
- 1995-11-24 US US08/836,810 patent/US5864122A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3110975A (en) * | 1960-11-30 | 1963-11-19 | Landers Frary & Clark | Steam iron with dual heating means |
GB2006835A (en) * | 1977-10-31 | 1979-05-10 | Braun Ag | Improvements in or Relating to Irons |
DE4107236A1 (de) * | 1991-03-07 | 1992-09-10 | Braun Ag | Dampfbuegeleisen |
Also Published As
Publication number | Publication date |
---|---|
JPH10509889A (ja) | 1998-09-29 |
FR2727439B1 (fr) | 1996-12-27 |
CA2206136A1 (fr) | 1996-06-06 |
EP0793745B1 (fr) | 2000-04-05 |
ES2146790T3 (es) | 2000-08-16 |
DE69516168T2 (de) | 2000-11-23 |
FR2727439A1 (fr) | 1996-05-31 |
US5864122A (en) | 1999-01-26 |
DE69516168D1 (de) | 2000-05-11 |
CA2206136C (fr) | 2002-12-10 |
EP0793745A1 (fr) | 1997-09-10 |
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