EP3645782B1 - Un système de soins de vêtement avec pompe à eau - Google Patents

Un système de soins de vêtement avec pompe à eau Download PDF

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Publication number
EP3645782B1
EP3645782B1 EP18732090.8A EP18732090A EP3645782B1 EP 3645782 B1 EP3645782 B1 EP 3645782B1 EP 18732090 A EP18732090 A EP 18732090A EP 3645782 B1 EP3645782 B1 EP 3645782B1
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EP
European Patent Office
Prior art keywords
water
pressure
water pump
deformable container
care system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18732090.8A
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German (de)
English (en)
Other versions
EP3645782A1 (fr
Inventor
William Wai Lik WONG
Milind Vishwas DATE
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
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Filing date
Publication date
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Priority to PL18732090T priority Critical patent/PL3645782T3/pl
Publication of EP3645782A1 publication Critical patent/EP3645782A1/fr
Application granted granted Critical
Publication of EP3645782B1 publication Critical patent/EP3645782B1/fr
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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
    • D06F75/12—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

Definitions

  • the invention relates to a garment care system.
  • the invention more particularly relates to a garment care system comprising an iron and a separate base unit.
  • the core function of a garment care steam appliance is to generate steam for garment treatment.
  • Steam is the key element to deliver result, and, most of the time, performance of a garment care steam appliance is rated by steam performance.
  • a garment care steam appliance comprises a steam engine in which water is supplied, wherein the steam engine converts the water into steam instantaneously.
  • water dosing performance plays an important role in steam generation performance. Dosing can be simply done by gravity, but, for fast steam response and higher steam pressure, special technical solutions are normally used including water pumps, in order to achieve fast, pressured, and controllable water dosing. In such application, to improve water delivery performance becomes the key path of improving overall product performance.
  • Published patent WO 2007/013002 A2 discloses a steam ironing device having a pressurized water tank, for example, a spring-loaded water tank.
  • Published patent FR 2 853671 A1 relates to steam irons in which a water pump in a base unit supplies pressurized water to a vaporization chamber.
  • Published patent EP 0 117 852 A2 discloses a steam ironing apparatus that comprises a steam iron, the body of which is formed with a steam generating evaporation chamber communicating with a plurality of through holes formed in the plate of the iron.
  • a unit for supplying water to the steam generating chamber includes a water reservoir structurally independent of the iron, a duct for supplying water from the reservoir to the evaporation chamber and a cut-off valve carried by the iron and operable by a manual control located on the hand-grip of the iron to control the supply of water through the duct to the steam generating chamber.
  • a garment care system comprising an iron and a base unit connected via a hose cord.
  • the iron comprises a steam engine for receiving water from the base unit via the hose.
  • the base unit comprises a water tank for storing water, a volume deformable container, an electric valve arranged between the hose and the volume deformable container, and a water pump for pumping water from the water tank into the volume deformable container, wherein an open state and closed state of the electric valve is controllable from the iron so that in a closed state of the electric valve, a water pressure is built up in the volume deformable container by actuating the water pump, and in an open state of the valve, pressurized water in the volume deformable container is delivered into the hose.
  • the valve can be controllable from the iron while being arranged in the base unit. This will reduce the space needed for components in the iron itself. It is noted that more components are arranged inside the base unit as compared to the state of the art systems. However, this will not give any problems, since the base unit is normally not move by the user, and can be designed so as to provide sufficient space for additional components.
  • the volume deformable container is an elastically deformable tube arranged in the base unit between the water pump and the electric valve.
  • the base unit comprises a deformable reservoir in fluid communication with an output of the water pump and an input the electric valve.
  • the hose comprises an electrical wire to carry an electrical control signal for controlling the opening/closing of the electric valve.
  • the base unit comprises a control unit connected to the electrical wire.
  • control unit is adapted, upon receiving the electrical control signal, to open the electric valve, and activate the water pump .
  • the base unit further comprises a pressure regulator for regulating water pressure in the volume deformable container .
  • the pressure regulator comprises a pressure relief valve arranged to release water out of the volume deformable container into the water tank, if water pressure in the volume deformable container exceeds a given threshold (TH1).
  • TH1 a given threshold
  • the pressure regulator comprises a pressure sensor for measuring water pressure in the volume deformable container, the pressure sensor being connected to the control unit, the control unit being adapted to generate a control signal to the water pump for stopping the water pump if the water pressure in the volume deformable container exceeds a given threshold (TH2).
  • TH2 a given threshold
  • the pressure regulator corresponds to a pressure switch connected to the water pump, the pressure switch being arranged for switching off the water pump if the water pressure in the volume deformable container exceeds a given threshold (TH3).
  • TH3 a given threshold
  • the pressure regulator corresponds to a pressure switch connected to the water pump, the pressure switch being arranged for switching on the water pump if the water pressure in the volume deformable container drops below a given threshold (TH4).
  • TH4 a given threshold
  • FIG. 1 shows a garment care system 1 according to an embodiment of the invention.
  • the garment care system 1 comprises an iron 2 and a base unit 3 connected via a hose cord 41.
  • the iron 2 comprises a steam engine 21 for receiving water from the base unit 3 via the hose cord 41.
  • the base unit 3 comprises a water tank 31 for storing water, a volume deformable container 32, and an electric valve 33 arranged between the hose cord 41 and the volume deformable container 32.
  • the base unit also comprises a water pump 34 for pumping water from the water tank 31 into the volume deformable container 32.
  • the electric valve has an open state and a closed state.
  • a water pressure is built up in the volume deformable container 32 by actuating the water pump 34, and in the open state of the valve, pressurized water in the volume deformable container 32 is delivered into the hose cord 41.
  • the hose cord 41 comprises an electrical wire 42 to carry an electrical control signal for controlling the opening/closing of the electric valve 33.
  • the iron 2 comprises a user-actuated element 22 to generate the electrical control signal.
  • the user-actuated element 22 is an on/off switch, or a sensor for detecting the presence of a user, or the motion of the iron.
  • the base unit 3 comprises a control unit 35 connected to the electrical wire 42.
  • the control unit 35 is arranged to control the electric valve 33 and the water pump 34.
  • the open state and closed state of the electric valve 33 is controllable from the iron 2 indirectly via the control unit 35, by actuating the user-actuated element 22.
  • the electrical wire 42 is directly connected to the electric valve 33 to control its open state and closed state, by actuating the user-actuated element 22.
  • the time response to open or close the electric valve 33 may be faster, for example faster by a few tens of milliseconds, as compared to indirectly controlling the electric valve 33 via the control unit 35.
  • Control of the valve may be implemented by any suitable mechanism.
  • the control may be implemented directly from the user-actuated element 22 so that the control unit 35 controls the pump and the user-actuated element 22 directly controls the valve 33.
  • connection pipe 37 arranged in the base unit 3 into a water pipe 44 arranged in the hose cord 41.
  • pipe 37 can be part of pipe 44, meaning that pipe 37 and pipe 44 form a same pipe.
  • the water will flow through the water pipe 44 into the steam engine 21 so as to create steam, which will leave the iron via one or more openings (not shown in Figure 1 ).
  • the volume deformable container 32 is an elastically deformable tube arranged in the base unit 3 between the water pump 34 and the electric valve 33. If the electrical valve 33 is closed, and the water pump 34 is activated, a water pressure is built up in the volume deformable container 32.
  • Figure 1 also shows a power plug 5 for connection to a power supply.
  • the components of the base unit 2 can be powered as well as the components of the iron 2, which receive the electrical power via a power line 43 arranged in the hose cord 41.
  • Figure 2 shows a garment care system 1 according to a further embodiment of the invention.
  • Figure 2 corresponds to Figure 1 except for an additional pressure regulator 36 for regulating water pressure in the volume deformable container 32.
  • the base unit 3 functions as a water delivery system for the iron 2 which is able to generate steam instantaneously via dosing water into its steam engine 21.
  • a certain amount of water can be stored under pressure, which can be used to create fast water release, a jet water dosing effect, when discharged.
  • the base unit 2 may have the following working cycles.
  • the water storage in the volume deformable container 32 is about 0.4g with a water pressure of 0.8bar, and it takes 0.5sec pumping time under ⁇ 225g/min pumping rate to build.
  • the water storage in the volume deformable container 32 is about 2g with a water pressure up to 3bar, and it takes about 1sec pumping time under about 225g/min pumping rate to build.
  • the pressure regulator 36 comprises a pressure relief valve 36a arranged to release water out of the volume deformable container 32 into the water tank 31, if water pressure in the volume deformable container 32 exceeds a given threshold TH1.
  • a pressure relief valve 36a arranged to release water out of the volume deformable container 32 into the water tank 31, if water pressure in the volume deformable container 32 exceeds a given threshold TH1.
  • the pressure regulator 36 comprises a pressure sensor 36b for measuring water pressure in the volume deformable container 32.
  • the pressure sensor 36b is connected to the control unit 35, the control unit 35 is adapted to generate a control signal to the water pump 34 for stopping the water pump 34 if the water pressure in the volume deformable container 32 exceeds a given threshold TH2.
  • the threshold TH2 can be a fixed value. Alternatively, the threshold TH2 is a variable parameter determined by the control unit 35.
  • the pressure regulator 36 corresponds to a pressure switch 36c connected to the water pump 34.
  • the pressure switch 36c is arranged for switching off the water pump 34 if the water pressure in the volume deformable container 32 exceeds a given threshold TH3.
  • the pressure switch 36c is also arranged for switching on the water pump 34 if the water pressure in the volume deformable container 32 drops below a given threshold TH4.
  • value of TH1, TH2, TH3, TH4 can be the same.
  • the base unit 3 comprises a deformable reservoir 39 in fluid communication with an output of the water pump 34 and an input the electric valve 33.
  • the deformable reservoir 39 is arranged to store and keep pressure for the water amount used for fast water stream generation.
  • the deformable reservoir 39 can be container made out of a flexible material.
  • the deformable reservoir 39 can comprises rigid walls, but having a movable biased part (e.g. a piston) so as to be provide for a variable volume depending on the pressure of its interior.
  • the deformable reservoir 39 has a rigid outer wall and with compressible material inside (such as air) so as to be provide for a volume deformable storage depending on the pressure of its interior.
  • the deformable reservoir 39 can be the only volume deformable container in the base unit 3.
  • the tube 32 can be deformable as well. In that case, two volume deformable containers are arranged in the base unit 3.
  • the pressure regulator 36 shown in Figures 2-5 could also be present in the base unit 3 with the deformable reservoir 39. The pressure regulator 36 could be arranged in the deformable reservoir 39 or in the deformable tube 32.
  • control unit 35 is adapted, upon receiving the electrical control signal from the actuated element 22, to open the electric valve 33, and activate the water pump 34. This allows delivering a flow of water in the hose cord 41, for example a continuous flow of water.
  • the opening of the electric valve 33 and the activation of the water pump 34 are performed simultaneously. Alternatively, the electric valve 33 is opened just before the water pump 34 is activated.
  • Figure 7 shows a flow chart of a method of controlling water flow in a known garment care system having no electric valve. The method steps can be performed by a controller arranged to control the water pump and a temperature control arranged in the system.
  • the method of controlling starts with receiving a request of steam triggering, see block 701.
  • a signal confirmation decision is made by the controller (preferably after filtering and noise cancellation processes), see 702.
  • the controller confirms the signal which is received is a request, and not noise or interference. This can be normally done by software buffering and/or multiple sampling and comparing.
  • the next block 704 indicates a water dosing flowrate pattern decision, which is made based on the sensed temperature of the steam engine and a pre-determined look-up table, in order to perform certain water dosing flowrate pattern based on the temperature reading.
  • a water dosing flowrate pattern decision which is made based on the sensed temperature of the steam engine and a pre-determined look-up table, in order to perform certain water dosing flowrate pattern based on the temperature reading.
  • the temperature control of the steam engine is adjusted to prepare for incoming water and use cases change, see block 705.
  • many garment care systems use dynamic control, i.e. system setting will change according to user behavior, like vertical mode, auto steam etc... and those garment care systems keep monitoring these status and make changes accordingly.
  • a pump start timing check 706, which is necessary to protect pump and its control circuit by switching around zero point of alternative current that drives the pump.
  • a pump driving signal is output to a pump driving circuitry, see 707, so as to activate the water pump.
  • the water pump primes (i.e. sucks water to fill its inlet and internal air vacancy), sucking water from water source, once received driving signal, see block 709. After that, water will start moving towards steam engine, see block 710.
  • the arrow 715 indicates the time delay between the receiving of the trigger and the moving of the water. Since the water only starts to move after the controller has confirmed its working statue and has decided how it should react to the triggering demand, the time delay may be significant. In many state of the art systems, this delay can be up to a hundred micro-seconds (for example 200 micro-seconds), which negatively affects user experience, as indicated in the Background section of the invention.
  • the improved method of controlling starts with receiving a request of steam triggering, see block 801.
  • the controller 35 outputs a electric valve ON signal, see block 803 to actuate the electric valve 33.
  • the next block 805 indicates a dosing pattern decision, similar to 704.
  • a pump driving signal is output to the water pump driving circuitry, similar to 707, see 808, so as to activate the water pump.
  • early electric valve ON signal can be output, see block 803.
  • the electric valve 33 will thus be activated quickly after that, see 810, and the water will start moving before the pump is activated, see block 811, which refers to the 'leading water moving'. Movement of the water before the pump is activated is possible, since the water in the volume deformable container 32 was put under pressure in earlier operating steps (not shown in Figure 8 ).
  • Figure 8 shows that due to the pump driving signal, see the block 808, the water pump is primed, see block 812, and the following water will start moving, see block 813.
  • the arrow 815 indicates the time delay between the receiving of the trigger and the moving of the (leading) water. Since this water already start to move after the controller has confirmed its working statue, the time delay is less than in Figure 7 . The water already starts to move before controller 35 makes any other fundamental decision, see blocks 804-807.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Claims (12)

  1. Système de soin pour vêtements (1) comprenant un fer (2) et une unité de base (3) connectées par l'intermédiaire d'un tuyau (41), dans lequel le fer (2) comprend un moteur à vapeur (21) destiné à la réception de l'eau de l'unité de base (3) par l'intermédiaire du tuyau (41), dans lequel l'unité de base (3) comprend :
    - un réservoir d'eau (31) destiné au stockage de l'eau,
    - un récipient (32) déformable en volume,
    - une électrovalve (33) disposée entre le tuyau (41) et le récipient (32) déformable en volume,
    - une pompe à eau (34),
    dans lequel un état ouvert et un état fermé de l'électrovalve (33) peuvent être commandés à partir du fer (2),
    caractérisé en ce que :
    la pompe à eau (34) est destinée au pompage de l'eau du réservoir d'eau (31) dans le récipient (32) déformable en volume ;
    dans un état fermé de l'électrovalve (33), une pression d'eau est établie dans le récipient (32) déformable en volume par actionnement de la pompe à eau (34), et dans un état ouvert de la valve, l'eau sous pression dans le récipient (32) déformable en volume est distribuée dans le tuyau (41) ; et
    le récipient (32) déformable en volume est un tube élastiquement déformable disposé dans l'unité de base (3) entre la pompe à eau (34) et l'électrovalve (33).
  2. Système de soin pour vêtements selon la revendication 1, dans lequel l'unité de base (3) comprend un réservoir (39) déformable en communication fluidique avec une sortie de la pompe à eau (34) et une entrée de l'électrovalve (33).
  3. Système de soin pour vêtements selon l'une quelconque des revendications précédentes, dans lequel le tuyau (41) comprend un fil (42) électrique pour transporter un signal de commande électrique pour commander l'ouverture/la fermeture de l'électrovalve (33) .
  4. Système de soin pour vêtements selon la revendication 3, dans lequel le fer (2) comprend un élément (22) actionné par l'utilisateur pour générer le signal de commande électrique.
  5. Système de soin pour vêtements selon l'une quelconque des revendications précédentes, dans lequel l'unité de base (3) comprend une unité de commande (35) connectée audit fil (42) électrique.
  6. Système de soin pour vêtements selon la revendication 5, dans lequel l'unité de commande (35) est apte, lors de la réception dudit signal de commande électrique, à l'ouverture de l'électrovalve (33) et à l'activation de la pompe à eau (34).
  7. Système de soin pour vêtements selon la revendication 6, dans lequel l'unité de commande (35) est apte à l'ouverture d'abord de l'électrovalve (33), puis à l'activation en second lieu de la pompe à eau (34) .
  8. Système de soin pour vêtements selon l'une quelconque des revendications précédentes, dans lequel l'unité de base (3) comprend en outre un régulateur de pression (36) destiné à la régulation de la pression d'eau dans le récipient (32) déformable en volume.
  9. Système de soin pour vêtements selon la revendication 8, dans lequel le régulateur de pression (36) comprend un clapet de décharge (36a) conçu pour décharger l'eau hors du récipient (32) déformable en volume dans le réservoir d'eau (31) lorsque la pression de l'eau dans le récipient (32) déformable en volume est supérieure à un seuil (TH1) donné.
  10. Système de soin pour vêtements selon la revendication 8, dans lequel le régulateur de pression (36) comprend un capteur de pression (36b) destiné à la mesure de la pression d'eau dans le récipient (32) déformable en volume, le capteur de pression (36b) étant connecté à l'unité de commande (35), l'unité de commande (35) étant apte à la génération d'un signal de commande à la pompe à eau (34) pour arrêter la pompe à eau (34) lorsque la pression d'eau dans le réservoir (32) déformable en volume est supérieure à un seuil (TH2) donné.
  11. Système de soin pour vêtements selon la revendication 10, dans lequel le régulateur de pression (36) correspond à un pressostat (36c) connecté à la pompe à eau (34), le pressostat (36c) étant conçu pour mettre en arrêt la pompe à eau (34) lorsque la pression de l'eau dans le volume du récipient (32) déformable en volume est supérieure à un seuil (TH3) donné.
  12. Système de soin pour vêtements selon la revendication 8, dans lequel le régulateur de pression (36) correspond à un pressostat (36c) connecté à la pompe à eau (34), le pressostat (36c) étant conçu pour mettre en marche la pompe à eau (34) lorsque la pression de l'eau dans le récipient (32) déformable en volume est inférieure à un seuil (TH4) donné.
EP18732090.8A 2017-06-26 2018-06-22 Un système de soins de vêtement avec pompe à eau Active EP3645782B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18732090T PL3645782T3 (pl) 2017-06-26 2018-06-22 System do pielęgnacji odzieży z pompą wodną

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17177852.5A EP3421657A1 (fr) 2017-06-26 2017-06-26 Un système de soins de vêtement avec pompe à eau
PCT/EP2018/066694 WO2019002111A1 (fr) 2017-06-26 2018-06-22 Système de soins de vêtement à pompe à eau

Publications (2)

Publication Number Publication Date
EP3645782A1 EP3645782A1 (fr) 2020-05-06
EP3645782B1 true EP3645782B1 (fr) 2021-05-19

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ID=59215651

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17177852.5A Withdrawn EP3421657A1 (fr) 2017-06-26 2017-06-26 Un système de soins de vêtement avec pompe à eau
EP18732090.8A Active EP3645782B1 (fr) 2017-06-26 2018-06-22 Un système de soins de vêtement avec pompe à eau

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17177852.5A Withdrawn EP3421657A1 (fr) 2017-06-26 2017-06-26 Un système de soins de vêtement avec pompe à eau

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EP (2) EP3421657A1 (fr)
CN (1) CN110799696B (fr)
PL (1) PL3645782T3 (fr)
WO (1) WO2019002111A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112779748B (zh) * 2019-11-08 2022-06-28 漳州灿坤实业有限公司 即开式蒸汽熨烫装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535556A (en) * 1983-03-01 1985-08-20 Alfredo Cavalli Steam ironing apparatus with a separate water reservoir
FR2626901B1 (fr) * 1988-02-10 1990-06-29 Seb Sa Fer a repasser a vapeur comprenant un dispositif perfectionne d'alimentation en eau de la chambre de vaporisation
DE4214564C1 (fr) * 1992-05-08 1993-09-02 Rowenta-Werke Gmbh, 6050 Offenbach, De
DE19524333C1 (de) * 1995-07-04 1996-08-14 Rowenta Werke Gmbh Dampfbügeleisen
FR2853671B1 (fr) * 2003-04-14 2005-09-16 Kai Tung Augustine Fung Fer a repasser a generateur de vapeur
RU2423568C2 (ru) * 2005-07-29 2011-07-10 Конинклейке Филипс Электроникс Н.В. Устройство для глажения с паром
CN100532698C (zh) * 2006-09-08 2009-08-26 徐万群 一种分体式蒸汽电熨斗
GB0901855D0 (en) * 2009-02-05 2009-03-11 Strix Ltd Electric steam generation

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
WO2019002111A1 (fr) 2019-01-03
CN110799696A (zh) 2020-02-14
EP3421657A1 (fr) 2019-01-02
CN110799696B (zh) 2022-07-05
PL3645782T3 (pl) 2021-09-27
RU2762861C2 (ru) 2021-12-23
EP3645782A1 (fr) 2020-05-06
RU2020103351A3 (fr) 2021-10-18
RU2020103351A (ru) 2021-07-27

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