EP3786346A1 - Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement - Google Patents

Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement Download PDF

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Publication number
EP3786346A1
EP3786346A1 EP19194219.2A EP19194219A EP3786346A1 EP 3786346 A1 EP3786346 A1 EP 3786346A1 EP 19194219 A EP19194219 A EP 19194219A EP 3786346 A1 EP3786346 A1 EP 3786346A1
Authority
EP
European Patent Office
Prior art keywords
steam generator
temperature
pump
water
given
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19194219.2A
Other languages
German (de)
English (en)
Inventor
Xin Xian Kong
Kenny KHNG
Yao Hean CHIAH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Priority to EP19194219.2A priority Critical patent/EP3786346A1/fr
Priority to RU2021107417A priority patent/RU2765177C1/ru
Priority to CN202080005457.5A priority patent/CN112789376B/zh
Priority to PCT/EP2020/072963 priority patent/WO2021037596A1/fr
Priority to EP20754275.4A priority patent/EP3847306B1/fr
Publication of EP3786346A1 publication Critical patent/EP3786346A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • D06F75/12—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water supplied to the iron from an external source
    • 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

Definitions

  • the invention relates to a method of water priming a garment care device.
  • the invention also relates to a garment care device implementing such a method.
  • the invention may be used in the field of garment care.
  • garment care devices comprising:
  • the generated steam is used to treat garments, such as removing wrinkles.
  • the above-mentioned garment care devices have technical limitations in the sense that after the user has actuated the steam trigger arranged on the mobile unit, there is a relatively long delay before steam is finally generated by the steam generator. In other words, such types of garment care devices lack responsiveness in steam generation, which may affect the efficiency of garment treatment, as well as result in a negative user experience.
  • the method according to the invention is for water priming a garment care device comprising a mobile unit comprising a steam generator, a base, a cord for connecting the base and the mobile unit, a water tank and a first pump arranged in the base for pumping water from the water tank to the steam generator via the cord.
  • the method according to the invention comprises the following steps:
  • This method allows that before the garment care device is used by the user for treating garments, the water circuit carrying water between the base and the steam generator arranged in the mobile unit is already primed with water. This method is thus preferably implemented during the start-up phase of the device, right after the user has switched-on the device, and before the time the device indicates to the user that the start-up phase is finished and that the device is ready to be used.
  • the water circuit may comprise a water pipe arranged in the cord, as well as other water pipe portions or water path arranged in the base and/or in the mobile unit for carrying water between the base and the steam generator.
  • the water circuit carrying water between the base and the steam generator arranged in the mobile unit is primed with water when a significant decrease of temperature of the steam generator is detected, reflecting that the water circuit is filled-in with water, and that water has now reached the steam generator.
  • the water circuit is already filled-in with water (i.e. all air has been replaced by water), so that water can be instantaneously dosed into the steam generator, and generate steam also instantaneously. In other words, there is no delay between actuating the steam trigger, and the steam generation.
  • the invention also relates to a garment care device implementing steps of the above method.
  • the invention also relates to a computer program product comprising instructions codes for implementing steps of the above method.
  • Fig.1 depicts a garment care device 100 according to the invention.
  • the garment care device 100 comprises:
  • the cord 104 may correspond to a hose cord comprising at least one water pipe to carry water from the water tank 105 to the steam generator 102.
  • the mobile unit 101 is a steam iron 101 or a steamer head (not shown).
  • the base 103 further comprises a second steam generator 106 supplied in water by a second pump P2 from the water tank 105, for generating steam carried from the base 103 to the mobile unit 101 via the cord 104.
  • a second steam generator 106 supplied in water by a second pump P2 from the water tank 105, for generating steam carried from the base 103 to the mobile unit 101 via the cord 104.
  • the base 103 comprises a micro controlling unit MCU adapted to actuate the pump P1 and/or P2, retrieve a temperature signal of the steam generator 102, and perform various measurements and calculations, by running a computer program product comprising instructions codes implementing steps of the method according to the invention that will be described in the following.
  • Fig.2 depicts a flow chart of a method according to the invention.
  • Fig.3 depicts a first series of signals when a method according to the invention is used.
  • the method comprises a step S1 of starting the heating of the steam generator 102. This step is started at time t0. At that time, the temperature T of the steam generator 102 is T0, which may for example be close to the ambient room temperature where the device is located. After the heating of the steam generator 102 has started, the temperature of the steam generator 102 increases, more or less linearly depending on the characteristics of the steam generator 102.
  • the method also comprises a first step S2 of detecting that the steam generator 102 has a temperature T equal or larger than a given first increased temperature T1.
  • a temperature measurement of the steam generator 102 is performed regularly, for example every second.
  • the steam generator 102 has a temperature T equal or larger than said given first increased temperature T1 at time t1.
  • the given first increased temperature T1 is a value in the range [90;150] degrees Celsius, for example 120 degrees Celsius.
  • the method also comprises a step S3 of starting the first pump P1. In the diagram of Fig.3 , this may happen at time t1 or slightly later. Water is thus pumped from the water tank 105, and water starts to flow along the water circuit formed by:
  • water circuit would already be partly filled-in with water, for example if the user has recently used the garment care device, water will continue to flow along the water circuit from the point where water had drained out or had evaporated.
  • the method also comprises a second step S4 of detecting that the steam generator 102 has a temperature T equal or larger than a given second increased temperature T2, the second increased temperature T2 being equal or larger than said first increased temperature T1.
  • a temperature measurement of the steam generator 102 is performed regularly, for example every second.
  • the steam generator 102 has a temperature T equal or larger than said given second increased temperature T2 at time t2.
  • the given second increased temperature T2 is a value in the range [130;190] degrees Celsius, for example 150 degrees Celsius.
  • the method also comprises a step S5 of stopping the heating of the steam generator 102.
  • this given second increased temperature T2 is deemed a sufficiently high temperature for the steam generator 102 in terms of for example being able to generate a sufficient amount of steam as soon as the start-up phase of the device will be elapsed.
  • the method also comprises a step (S6) of measuring at least one rate of temperature decrease for the steam generator (102).
  • the temperature of the steam generator 102 will in turns decrease step by step. It is noted that right after the heating of the steam generator 102 has been stopped, the temperature of the steam generator 102 might still increase little bit until the hottest areas of the steam generator 102 have balanced in temperature with cooler areas of the steam generator 102. This is illustrated in Fig.3 by a temperature overshoot OV. Again, the presence of this overshoot OV does not affect the robustness of the measurements and calculations conducted by the method according to the invention.
  • the temperature of the steam generator 102 will in general decrease relatively slowly, mainly via loss of energy by thermal convection in the surrounding ambient air, and/or by thermal conduction if the mobile unit 101 is placed on a support during the start-up phase.
  • the rate R of temperature decrease of the steam generator 102 will be higher, in particular when exceeding a certain threshold TH.
  • the method according to the invention uses this approach to identify that water pumped from the water tank 105 has reached the steam generator 102. This implies that a measurement of the rate R of temperature decrease of the steam generator 102 is performed regularly, for example every second.
  • the method also comprises a step S7 of stopping the first pump P1.
  • the step S7 of stopping the first pump P1 happens at time t3.
  • said at least one rate R of temperature decrease is measured as an elapsed time for a given amount of temperature decrease.
  • the time elapsed for a given amount of temperature decrease of for example 3 degrees Celsius is measured, and this time elapsed is compared with a time threshold of for example 4 seconds. If the measured time elapsed (for example 3 seconds) is less than the time threshold, this means that water pumped from water tank 105 has reached the steam generator 102.
  • said at least one rate R of temperature decrease is measured as a temperature decrease over a given duration of elapsed time.
  • the temperature decrease for a given time elapsed of for example 4 seconds is measured, and this temperature decrease is compared with a temperature threshold of for example 3 degrees Celsius. If the measured temperature decrease (for example 4 degrees Celsius) is more than the temperature threshold, this means that water pumped from water tank 105 has reached the steam generator 102.
  • the at least one rate R of temperature decrease comprises a plurality of consecutive rates of temperature decrease exceeding said certain threshold (TH), preferably two or three consecutive rates of temperature decrease.
  • TH certain threshold
  • a first check of the rate (R) of temperature decrease is made when the steam generator 102 reaches 147
  • a second check of the rate (R) of temperature decrease is made when the steam generator 102 reaches 144
  • a third check of the rate (R) of temperature decrease is made when the steam generator 102 reaches 141. If each of those three checks are such that the rate R of temperature decrease of the steam generator 102 has exceeded a certain threshold TH, this means that water has reached the steam generator 102 and that the water circuit is now fully filled-in with water (i.e. the water circuit is primed).
  • the step S6 of measuring at least one rate R of temperature decrease for the steam generator 102 is started either:
  • the at least one rate R of temperature decrease is measured as an elapsed time for a given amount of temperature decrease
  • the measured time elapsed is started from time t2, or a time delayed by a fixed value after time t2, for example two seconds.
  • the at least one rate R of temperature decrease is measured as a temperature decrease over a given duration of elapsed time
  • the measured temperature decrease is started from temperature T2 at time t2, or the temperature at a time delayed by a fixed value after time t2, for example two seconds.
  • the step S3 of starting the first pump P1 comprises setting the water flow rate of the first pump P1 in the range [3;30] g/mn.
  • Values in this range provides a good balance between having a sufficient flow rate making possible to finish the priming of the water circuit before the end of the start-up phase of the device, and not too high values of the flow rate that might have otherwise result in flooding the steam generator 102 before stopping the first pump P1.
  • a flow rate of 9 g/mn for the first pump P1 can be selected.
  • the water flow rate of the first pump (P1) may be set by varying the duty cycle of the activation of the first pump (P1).
  • the method further comprises a step S8 of setting the device in an operating mode allowing any of the following modes:
  • the method further comprises comprising a step S9 of stopping the first pump P1, if after a given duration Dmax starting from said step S1 of starting the heating of the steam generator 102, the at least one rate of temperature decrease of the steam generator 102 has not exceeded said certain threshold TH.
  • This situation reflects a potential problem in the garment care device such as a water pipe broken or with leaking, water pipe stroked, pump deficient.... In that case, it is preferred to stop the first pump P1.
  • the given duration Dmax is counted from time t0.
  • Dmax 3 mn.
  • the method further comprises a step S10 of setting the device in an operating safe mode after the step S9 of stopping the first pump P1.
  • the operating safe mode can be choose among the following:
  • Fig.4 depicts a second series of signals when a method according to the invention is used.
  • Fig.4 differs from Fig.3 is that the first increased temperature T1 has same value has the second increased temperature T2, for example 150 degrees Celsius.
  • the first pump P1 is started much later than in the scenario of Fig.3 . Indeed, the first pump P1 is here started at time t2. In general, this means that less time will be available to complete the water priming of the water circuit. This scenario is thus preferred in case of the water volume of the water circuit to prime is relatively smaller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
EP19194219.2A 2019-08-29 2019-08-29 Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement Withdrawn EP3786346A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19194219.2A EP3786346A1 (fr) 2019-08-29 2019-08-29 Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement
RU2021107417A RU2765177C1 (ru) 2019-08-29 2020-08-17 Способ заполнения водой устройства для ухода за одеждой
CN202080005457.5A CN112789376B (zh) 2019-08-29 2020-08-17 对衣物护理设备引水的方法
PCT/EP2020/072963 WO2021037596A1 (fr) 2019-08-29 2020-08-17 Procédé d'amorçage d'eau d'un dispositif d'entretien de vêtement
EP20754275.4A EP3847306B1 (fr) 2019-08-29 2020-08-17 Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19194219.2A EP3786346A1 (fr) 2019-08-29 2019-08-29 Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement

Publications (1)

Publication Number Publication Date
EP3786346A1 true EP3786346A1 (fr) 2021-03-03

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ID=67809245

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19194219.2A Withdrawn EP3786346A1 (fr) 2019-08-29 2019-08-29 Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement
EP20754275.4A Active EP3847306B1 (fr) 2019-08-29 2020-08-17 Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20754275.4A Active EP3847306B1 (fr) 2019-08-29 2020-08-17 Procédé d'amorçage à l'eau d'un dispositif de soin de vêtement

Country Status (4)

Country Link
EP (2) EP3786346A1 (fr)
CN (1) CN112789376B (fr)
RU (1) RU2765177C1 (fr)
WO (1) WO2021037596A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054564A1 (fr) * 2003-12-05 2005-06-16 Euro Star S.R.L. Procede de repassage d'un article textile et appareil permettant de mettre en oeuvre ce procede
US20090084007A1 (en) * 2007-09-29 2009-04-02 Tsann Kuen (China) Enterprise Co., Ltd. Steam Iron
CN103374812A (zh) * 2013-07-09 2013-10-30 广东新宝电器股份有限公司 蒸汽式电熨斗及其控制方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2679287B2 (ja) * 1989-08-18 1997-11-19 松下電器産業株式会社 アイロン
EP1975308A1 (fr) * 2007-03-30 2008-10-01 Koninklijke Philips Electronics N.V. Procédé pour déterminer le niveau de liquide dans une chaudière
EP3464706A1 (fr) * 2016-05-26 2019-04-10 Koninklijke Philips N.V. Système de repassage à mécanisme de distribution d'eau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054564A1 (fr) * 2003-12-05 2005-06-16 Euro Star S.R.L. Procede de repassage d'un article textile et appareil permettant de mettre en oeuvre ce procede
US20090084007A1 (en) * 2007-09-29 2009-04-02 Tsann Kuen (China) Enterprise Co., Ltd. Steam Iron
CN103374812A (zh) * 2013-07-09 2013-10-30 广东新宝电器股份有限公司 蒸汽式电熨斗及其控制方法

Also Published As

Publication number Publication date
EP3847306B1 (fr) 2022-05-04
WO2021037596A1 (fr) 2021-03-04
CN112789376A (zh) 2021-05-11
CN112789376B (zh) 2022-04-08
EP3847306A1 (fr) 2021-07-14
RU2765177C1 (ru) 2022-01-26

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