US20120246839A1 - Control method of laundry treatment apparatus - Google Patents
Control method of laundry treatment apparatus Download PDFInfo
- Publication number
- US20120246839A1 US20120246839A1 US13/515,769 US201013515769A US2012246839A1 US 20120246839 A1 US20120246839 A1 US 20120246839A1 US 201013515769 A US201013515769 A US 201013515769A US 2012246839 A1 US2012246839 A1 US 2012246839A1
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- Prior art keywords
- supplying
- water
- accommodating space
- steam
- laundry
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- 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.)
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- 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
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
- D06F58/44—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing, e.g. for smoothing or removing creases
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- 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
- D06F58/00—Domestic laundry dryers
- D06F58/30—Drying processes
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- 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
- D06F58/00—Domestic laundry dryers
- D06F58/10—Drying cabinets or drying chambers having heating or ventilating means
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- 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
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/203—Laundry conditioning arrangements
Definitions
- the present invention relates to a control method configured to supply moisture, mist and steam to clothes to perform sanitization for clothes.
- laundry treatment apparatuses are used together with washing machines used to wash laundry items including clothes, cloth items, beddings and the like.
- laundry treatment apparatuses including drum type dryers capable of drying laundry items having being washed, cabinet type dryers capable of drying laundry items hung thereon, and refreshers capable of refreshing laundry items by using hot air supplied to the laundry items.
- the present invention is directed to a control method of a laundry treatment apparatus.
- An object of the present invention is to provide a control method of a laundry treatment apparatus, which can perform sanitization by supplying of water, mist, steam and the like to laundry.
- a control method of a laundry treatment apparatus configured to supply steam and/or heated air to an accommodating space accommodating laundry therein, the control method includes a water supplying/heating step supplying water to a water supplying device configured to supply steam and heating the water; a re-supplying step re-supplying water to the water supplying device; a steam supplying step heating the water inside the water supplying device and supplying steam to the accommodating space, with the laundry kept still; a cooling step cooling the accommodating space; and a drying step supplying heated air having a predetermined temperature to the accommodating space.
- FIG. 1 is a front view illustrating a door 14 provided in a laundry treatment apparatus, in an open state;
- FIG. 2 is a front view illustrating a laundry treatment apparatus according to another embodiment of the present invention.
- FIG. 3 is a perspective view illustrating a moving hanger shown in FIG. 2 ;
- FIG. 4 is an exploded perspective view of FIG. 3 ;
- FIG. 5 is a schematic diagram illustrating an inner configuration of a mechanism chamber
- FIG. 6 is a flow chart illustrating a control method according to an embodiment of the present invention.
- FIG. 7 is a flow chart illustrating a control method according to another embodiment of the present invention.
- FIG. 8 is a flow chart illustrating a control method according to a further embodiment of the present invention.
- FIG. 9 is a flow chart illustrating a control method according to a still further embodiment of the present invention.
- refresher configured to refresh clothes, with being capable of supplying heated air, as laundry treatment apparatus and the present invention is not limited thereto.
- a subject matter of the present invention may be applicable to any devices having a heat pump which will be described later.
- ‘refresh’ means a process of performing wrinkle removal, deodorization, static electricity prevention and laundry warming and the like by supplying air, heated air, water, mist and steam to clothes, cloth items and the like (hereinafter, referenced to as ‘laundry’).
- laundry includes clothes, apparel, shoes, socks, gloves, hats and mufflers which are wearable by people and dolls, towels and beddings which useable. That is, ‘laundry’ includes all kinds of objects of which washing may be performed.
- a laundry treatment apparatus 100 includes a cabinet 10 having a predetermined accommodating space 12 formed therein to accommodate laundry, an air supplying device ( 22 , see FIG. 2 ) configured to supply air or heated air to the accommodating space 12 , a water supplying device ( 30 , see FIG. 2 ) configured to spray water, mist or steam to the accommodating space 12 selectively, and a control part (not shown) configured to control the air supplying device 22 and the water supplying device 30 .
- the accommodating space 12 is formed in the cabinet 10 to accommodate laundry therein.
- the accommodating space 12 is selectively in communication with an outside by a door 14 .
- Various supporters 16 may be provided in the accommodating space 12 to hang clothes thereon.
- the supporters 16 are configured to stand still or to maintain a fixed state to keep the clothes motionless.
- the supporters may be configured to apply predetermined movement to the clothes when air, heated air, water, mist or steam is supplied to the clothes, which will be described later.
- this configuration will be described as follows.
- FIG. 2 is a front view illustrating a laundry treatment apparatus according to another embodiment of the present invention.
- the laundry treatment apparatus according to this embodiment includes a moving hanger configured to apply a predetermined motion to clothes hung thereon. As follows, this difference will be described in detail.
- laundry is hung on a moving hanger 50 provided in the accommodating space 12 and the moving hanger 50 is configured to apply a predetermined motion to the laundry hung thereon. If the predetermined motion is applied to the laundry supplied air, heated air, water, mist or steam, the effect of laundry refreshing may be enhanced.
- FIG. 3 is a perspective view illustrating the moving hanger 50 and FIG. 4 is an exploded perspective view illustrating the moving hanger 50 .
- the moving hanger 50 includes a hanger bar 250 configured to support laundry hung on a hanger 200 and a supporting part 280 configured to support both ends of the hanger bar 250 .
- a plurality of hanger recesses 251 may be provided in the banger bar 250 to fix the location of the hanger 200 hung on the hanger bar 250 .
- the supporting part 280 is connected to a moving hanger frame 213 and the moving hanger frame 213 is provided beyond a ceiling of the cabinet 10 , not to be seen outside. Both ends of the hanger bar 250 include supporting part ribs 254 , respectively, and the supporting rib 254 is covering the end of the supporting part 280 .
- the clothes received in the laundry treatment apparatus according to the present invention are hung on at least one hanger. Because of that, not only an improved refreshing effect but also improved drying efficiency for the clothes may be expected, compared with the conventional laundry treatment apparatus.
- the moving hanger 50 includes a motor 230 , a power converting part 260 configured to convert a rotational force provided by the motor 230 into a horizontally linear motion of the hanger bar 250 , and a power transmitting part 240 configured to transmit the power generated from the motor 230 to the power transmitting part 260 .
- the power transmitting part 240 includes a driving pulley 241 provided in the motor 230 , a driven pulley 242 connected to the driving pulley 241 by a belt 243 , and a shaft 244 coupled to a center of the driving pulley 242 .
- the shaft 244 may be rotatably provided in a bearing housing 270 provided in the moving hanger frame 213 .
- the hanger bar 250 may further include a slot 252 which lies at right angles to its longitudinal direction. Specifically, a slot housing 253 is provided on the hanger bar 250 and the slot 252 is located approximately in a center of the slot housing 252 .
- the power converting part 260 may include a slot inserting portion 263 inserted in the slot 252 , a shaft connecting portion 261 connected to the shaft 244 and a rotation arm 262 connecting the slot inserting portion 263 and the shaft connecting portion 261 with each other.
- the power converting part 260 is covered by a cover 214 not to be seen outside and the cover 214 is provided between the moving hanger frame 213 and the slot housing 253 .
- the slot inserting portion 263 will perform a circular motion, with a predetermined diameter.
- the slot 252 provided in the hanger bar 250 may be orthogonal to the longitudinal direction of the hanger bar 250 .
- the length of the slot 252 is larger than a rotational locus of the slot connecting portion 263 . Because of that, the slot 252 may perform a linear motion along a horizontal direction even when the slot inserting portion 263 performs a circular motion.
- a mechanism chamber 20 configured to accommodate the air supplying device 22 and the water supplying device 30 may be provided in the cabinet 10 .
- the mechanism chamber 20 may be located below the accommodating space 12 and it includes the air supplying device 22 and the water supplying device 30 received therein.
- the reason why the mechanism chamber 20 is located below the accommodating space 12 is that the heated air or steam supplied to the accommodating space 12 has a property of ascending and that the mechanism chamber 20 is located below the accommodating space 12 to supply the heated air or steam upwardly.
- FIG. 5 is a perspective view schematically illustrating an inner configuration of the mechanism chamber 20 .
- FIG. 5 To illustrate the inner configuration of the mechanism chamber 20 , only a frame 11 of the cabinet 10 is shown in FIG. 5 for convenience sake.
- main components including the air supplying device 22 and the water supplying device 30 are illustrated in FIG. 5 for convenience sake and a drainage line connecting those components with each other is not illustrated.
- the air supplying device 22 configured to supply air or heated air to the accommodating space 12 may be located within the mechanism chamber 20 .
- a heat pump 22 embodied as the air supplying device according to the present invention may include an evaporator 24 , a compressor 26 , a condenser 28 and an expansion valve (not shown) which allow refrigerant to flow there through. Because of that, air is dehumidified and heated.
- latent heat of ambient air is absorbed, while refrigerant is evaporated in the evaporator 24 . After that, air is cooled and moisture contained in the air is condensed and eliminated.
- refrigerant is condensed in the condenser 28 after passing the compressor 26 , latent heat is exhausted toward ambient air. After that, the ambient air may be heated.
- the evaporator and the condenser 28 are functioned as heat exchanger.
- the air sucked into the mechanism chamber 20 may be dehumidified and heated while passing the evaporator 24 and the condenser 28 , to be supplied to the accommodating space 12 .
- the air heated by the heat pump 22 has a relatively lower temperature than the air heated by a conventional electric heater.
- the air heated by the heat pump 22 may be dehumidified without using any auxiliary dehumidifying device.
- the air re-supplied to the accommodating space 12 by the heat pump 22 may be corresponding to ‘relatively low dry air’ (here, the term of ‘low temperature’ means not an absolutely low temperature but a relatively lower temperature than the temperature of conventional heated air).
- the laundry treatment apparatus according to the embodiment of the present invention may supply low temperature dry air to the laundry. Because of that, the laundry treatment apparatus according to the embodiment of the present invention may prevent deformity or damage which might be generated by the high temperature of heated air used in performing refreshing or drying for the laundry.
- the air supplied by the heat pump 22 in the laundry treatment apparatus may have the lower temperature than the hot air supplied in the conventional laundry treatment apparatus but it may be dehumidified without any auxiliary dehumidifying device, to dry and refresh the laundry efficiently and smoothly.
- an air inlet ( 21 A, see FIG. 5 ) is formed in a front portion of a top of the mechanism chamber 20 suck air of the accommodating space 12 into the mechanism chamber 20 .
- An air path of the air may be formed by an inlet duct 29 configured to connect the air inlet 21 A, the evaporator 24 , the condenser 28 and the fan 32 with each other.
- the air drawn into the mechanism chamber 20 via the air inlet 21 A by the inlet duct 29 may be dehumidified and heated while passing the heat pump 22 .
- the dehumidified and heated air may be re-supplied to the accommodating space 12 via an outlet duct 33 and an air outlet 21 B by a fan 32 .
- a filter may be provided in the air inlet 21 A.
- the filter provided in the air inlet 21 A may filter various foreign substances contained in the air drawn into the mechanism chamber 20 from the accommodating space 12 and only fresh air can be re-supplied to the accommodating space 12 .
- the water supplying device 30 may be provided in the mechanism chamber 20 to supply water, mist or steam (hereinafter, referenced to as ‘steam’) to the accommodating space 12 selectively.
- the water supplying device 30 includes a heater (not shown) configured to heat water and the water is heated to generate steam.
- the water supplying device 30 supplies the generated steam to the accommodating space 12 .
- An external water tap may be used as water supply source supplying water to the water supplying device 30 or a water supplying tank (not shown) may be provided in a predetermined portion of the mechanism chamber 20 as water supply source.
- the water supplying tank may be provided in a door module 60 detachably installed in a predetermined portion of the mechanism chamber 20 . Because of that, a user may separate the water supplying tank from the mechanism chamber 20 for water refill and he or she may re-install the tank.
- the steam generated in the water supplying device 30 is supplied to the accommodating space 12 via a steam hose 36 and a steam nozzle ( 40 , see FIGS. 1 and 2 ).
- a steam hose 36 and a steam nozzle 40 , see FIGS. 1 and 2 .
- the steam nozzle 40 may supply steam via a top of the mechanism chamber 20 which is a bottom of the accommodating space 12 .
- a circulating fan (not shown) may be provided in a rear portion of the mechanism chamber 20 and the circulating fan supplies external air to the mechanism chamber 20 . Because of that, the internal air of the mechanism chamber 20 may be prevented from increasing too much when the heat pump 22 and the water supplying device 30 are put into operation.
- control method of the laundry treatment apparatus having the configured described above will be described.
- the control method which will be described as follows is a control method performed when a course for sanitizing the laundry, namely, a sanitizing course out of refreshing courses is selected.
- FIG. 6 is a flow chart illustrating a control method according to an embodiment of the present invention.
- a control method includes supplying water to the water supplying device and heating the water (S 610 ), supplying steam to laundry by heating and generating the water supplied to the water supplying device, with the laundry kept still (S 650 ), cooling the accommodating space (S 670 ), and supplying heated air to the accommodating space to dry the laundry by using the heated air (S 690 ).
- the control part supplies water to the water supplying device 30 (S 610 ).
- the control part supplies the water up until a full-water level of the water supplying device.
- a water level sensor may be provided in the water supplying device to detect a water level. The control part controls the water to be supplied to the water supplying device until the water level sensor detects that the water reaches the full-water level.
- control part may further include heating the water until the temperature of the water reaches a predetermined temperature in the water supplying step.
- This step is configured to reduce the time required to heat the water to generate steam in a steam generating step which will be described later.
- the water may be heated at the moment when the water is supplied or in a predetermined time after the water is supplied.
- a heater and the like may be provided in the water supplying device to heat the water.
- the control part controls water to be re-supplied to the water supplying device (S 630 ).
- This is configured to supplement water evaporated while heated in the water supplying step and the heating step (S 610 ).
- the steam supplying time in the sanitizing course is longer than the steam supplying time in other courses such as a wrinkle removal course, a static electricity prevention course and deodorizing course. This is because a sanitization effect which uses steam has to be maximized.
- water may be supplied up to the water-full level of the water supplying device.
- the water may be supplied up to the full-water level of the water supplying device.
- the amount of the water which might be evaporated during the water supplying/heating step (S 610 ) may be supplemented by the re-supply of the water. Because of that, the water may not be supplemented during the steam supplying.
- the control part may further include a heating step configured to heat the water inside the water supplying device up to a predetermined temperature, which is performed in the re-supplying step.
- the control part controls the water inside the water supplying device to be heated and controls steam to be supplied to the accommodating space (S 650 ).
- the control part controls the heater provided in the water supplying device to heat the water, to supply steam.
- the control part controls the laundry kept still, that is, motionless. This is because the laundry has to be kept motionless to enable the steam to penetrate through the laundry smoothly and efficiently.
- the control part controls the moving hanger 50 to maintain an idle state, not operated, while supplying steam to the accommodating space.
- the control part controls unheated air to be supplied to the laundry for a predetermined time period to perform laundry cooling (S 670 ). Only the fan 32 is operated, not the heat pump 22 , and unheated air is supplied to the accommodating space 12 to perform the cooling. Because of that, it is possible to lower the internal temperature of the accommodated space 12 heated by the steam supplied thereto and the temperature of the laundry.
- the control part controls air heated or dried by the heat pump 22 to the accommodating space 12 , to dry the laundry (S 690 ).
- the control part controls the heat pump 22 to supply the heated air having a temperature of 45° C. to 60° C., preferably, 50° C. to 55° C.
- the laundry containing relatively much moisture because of the steam supplying may be dried by the heated air supplied thereto, to be pleasantly wearable.
- the control part may further include a step of applying a predetermined motion to the laundry in the drying step according to the control method of this embodiment.
- the control part may apply a predetermined motion to the laundry when supplying the heated air to the accommodating space 12 .
- the control part drives the moving hanger 50 to apply the predetermined motion to the laundry.
- the control part drives the moving hanger 50 to apply a horizontal motion to the laundry with a preset RPM, for example, a horizontally linear motion, a horizontally closed curve motion and a horizontally reciprocating motion.
- the motion is applied to the laundry, simultaneously together with supplying the heated air. Compared with the laundry kept still without any motion, the laundry having the predetermined motion applied thereto may contact with more heated air and drying efficiency may be remarkably improved.
- the heated air supplying time may be adjustable properly according to the kind of the laundry, the kind of fabric, a property of fabric.
- the heated air supplying time determined according to the kind of the laundry may be stored in the control part in advance.
- the laundry moving time may be continued or periodically repeated for the heated air supplying time.
- FIG. 7 is a flow chart illustrating a control method according to another embodiment of the present invention.
- the control method shown in FIG. 7 includes a step of preheating the accommodating space after the water supplying/heating step (S 710 ), compared with the above control method according to the embodiment. As follows, this difference will be described.
- the control method includes the preheating step configured to supply heated air to the accommodating space 12 to increase the temperature of the accommodating space 12 (S 711 ), after the water supplying/heating step (S 710 ). If the temperature of the accommodating space 12 is too low when steam is supplied to the accommodating space 12 , the sanitizing effect using steam will deteriorate. Because of that, the control part controls the temperature of the accommodating space 12 to be increased up to a predetermined temperature, for example, 34° C. to 45° C. In this case, the control part drives the heat pump 22 to supply heated air to the accommodating space and the temperature of the accommodating space may be increased.
- FIG. 8 is a flow chart illustrating a control method according to a further embodiment of the present invention. Compared with the above embodiment shown in FIG. 6 , this embodiment shown in FIG. 8 embodies that the number of steam supplying times is configured to be two or more. As follows, this difference will be described in detail.
- the control method includes a first water supplying step (S 811 ) supplying water to a water supplying device configured to supply steam, a first steam supplying step (S 812 ) heating the water inside the water supplying device and supplying steam to laundry kept still, a second water supplying step (S 813 ) re-supplying water to the water supplying device, a second steam supplying step (S 814 ) heating the water inside the water supplying device and supplying steam to the laundry which is kept still, a cooling step (S 815 ) cooling the accommodating space and a drying step (S 816 ) supplying heated air with a predetermined temperature to the accommodating space.
- the first water supplying step (S 811 ) of FIG. 8 may be corresponding to the water supplying/heating step (S 610 ) and the second water supplying step (S 813 ) is corresponding to the re-supplying step (S 630 ).
- the control part supplies water to the water supplying device (S 811 ) and it heats the water to supply steam (S 812 ). After performing the second water supplying (S 813 ), the control part re-heats water and it re-supplies steam (S 814 ). As mentioned above, the steam is dividedly supplied two times and this eventually increases the steam supplying time. Because of that, it may be possible to maximize the sanitizing effect for laundry items which is not easy for steam to penetrate. It is identical to the above embodiment to keep the laundry still motionlessly in each of the steam supplying steps.
- FIG. 9 is a flow chart illustrating a control method according to a still further embodiment.
- the control method according to FIG. 9 includes a pre-heating step increasing the temperature of the accommodating space, which is performed two times or more.
- a control method includes a first pre-heating step (S 912 ) supplying heated air with a predetermined temperature to the accommodating space after the first water supplying step (S 911 ) and a second pre-heating step (S 914 ) supplying heated air with a predetermined temperature to the accommodating space after the first steam supplying step (S 913 ).
- the reason why the pre-heating step is provided is that the sanitizing effect achieved by following first steam supplying step (S 913 ) and second steam supplying step (S 916 ) can be maximized.
- the control part preheats the accommodating space to have a lower temperature in the first preheating step (S 912 ) than in the second preheating step (S 914 ).
- the control part preheats the accommodating space to have a temperature of approximately 30° C. to 35° C. in the first preheating step (S 912 ) and it preheats the accommodating space to have a predetermined temperature of approximately 35° C. to 45° C. in the second preheating step (S 914 ).
- the control part supplies heated air to the accommodating space by using the heat pump.
- control method having the above configuration and steps enables the laundry to be sanitized by using water, mist, steam and the like.
Abstract
A control method of a laundry treatment apparatus is disclosed. A control method of a laundry treatment apparatus configured to supply steam and/or heated air to an accommodating space accommodating laundry therein, the control method includes a water supplying/heating step supplying water to a water supplying device configured to supply steam and heating the water, a re-supplying step re-supplying water to the water supplying device, a steam supplying step heating the water inside the water supplying device and supplying steam to the accommodating space, with the laundry kept still, a cooling step cooling the accommodating space, and a drying step supplying heated air having a predetermined temperature to the accommodating space.
Description
- The present invention relates to a control method configured to supply moisture, mist and steam to clothes to perform sanitization for clothes.
- In recent, various kinds of laundry treatment apparatuses are used together with washing machines used to wash laundry items including clothes, cloth items, beddings and the like. For example, there have been developed a variety of laundry treatment apparatuses including drum type dryers capable of drying laundry items having being washed, cabinet type dryers capable of drying laundry items hung thereon, and refreshers capable of refreshing laundry items by using hot air supplied to the laundry items.
- However, such a cabinet type laundry treatment apparatus has a variety of disadvantages.
- Accordingly, the present invention is directed to a control method of a laundry treatment apparatus.
- An object of the present invention is to provide a control method of a laundry treatment apparatus, which can perform sanitization by supplying of water, mist, steam and the like to laundry.
- Additional advantages, objects, and features of the disclosure will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
- To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a control method of a laundry treatment apparatus configured to supply steam and/or heated air to an accommodating space accommodating laundry therein, the control method includes a water supplying/heating step supplying water to a water supplying device configured to supply steam and heating the water; a re-supplying step re-supplying water to the water supplying device; a steam supplying step heating the water inside the water supplying device and supplying steam to the accommodating space, with the laundry kept still; a cooling step cooling the accommodating space; and a drying step supplying heated air having a predetermined temperature to the accommodating space.
- According to the control method of the laundry treatment apparatus of the present invention, water, mist, steam and the like are supplied to laundry. As a result, sanitization for the laundry may be performed.
- It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
- The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the principle of the disclosure.
- In the drawings:
-
FIG. 1 is a front view illustrating adoor 14 provided in a laundry treatment apparatus, in an open state; -
FIG. 2 is a front view illustrating a laundry treatment apparatus according to another embodiment of the present invention; -
FIG. 3 is a perspective view illustrating a moving hanger shown inFIG. 2 ; -
FIG. 4 is an exploded perspective view ofFIG. 3 ; -
FIG. 5 is a schematic diagram illustrating an inner configuration of a mechanism chamber; -
FIG. 6 is a flow chart illustrating a control method according to an embodiment of the present invention; -
FIG. 7 is a flow chart illustrating a control method according to another embodiment of the present invention; -
FIG. 8 is a flow chart illustrating a control method according to a further embodiment of the present invention; and -
FIG. 9 is a flow chart illustrating a control method according to a still further embodiment of the present invention. - Reference will now be made in detail to the specific embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
- This specification embodies a refresher configured to refresh clothes, with being capable of supplying heated air, as laundry treatment apparatus and the present invention is not limited thereto. A subject matter of the present invention may be applicable to any devices having a heat pump which will be described later. Here, ‘refresh’ means a process of performing wrinkle removal, deodorization, static electricity prevention and laundry warming and the like by supplying air, heated air, water, mist and steam to clothes, cloth items and the like (hereinafter, referenced to as ‘laundry’). The term ‘laundry’ includes clothes, apparel, shoes, socks, gloves, hats and mufflers which are wearable by people and dolls, towels and beddings which useable. That is, ‘laundry’ includes all kinds of objects of which washing may be performed.
- In reference to
FIG. 1 , alaundry treatment apparatus 100 includes acabinet 10 having a predeterminedaccommodating space 12 formed therein to accommodate laundry, an air supplying device (22, seeFIG. 2 ) configured to supply air or heated air to theaccommodating space 12, a water supplying device (30, seeFIG. 2 ) configured to spray water, mist or steam to the accommodatingspace 12 selectively, and a control part (not shown) configured to control theair supplying device 22 and thewater supplying device 30. - A variety of components, which will be described later, are provided in the
cabinet 10 and theaccommodating space 12 is formed in thecabinet 10 to accommodate laundry therein. Theaccommodating space 12 is selectively in communication with an outside by adoor 14.Various supporters 16 may be provided in theaccommodating space 12 to hang clothes thereon. Thesupporters 16 are configured to stand still or to maintain a fixed state to keep the clothes motionless. Here, the supporters may be configured to apply predetermined movement to the clothes when air, heated air, water, mist or steam is supplied to the clothes, which will be described later. In reference toFIGS. 2 and 3 , this configuration will be described as follows. -
FIG. 2 is a front view illustrating a laundry treatment apparatus according to another embodiment of the present invention. Compared with the above embodiment, the laundry treatment apparatus according to this embodiment includes a moving hanger configured to apply a predetermined motion to clothes hung thereon. As follows, this difference will be described in detail. - In reference to
FIG. 2 , laundry is hung on a movinghanger 50 provided in theaccommodating space 12 and the movinghanger 50 is configured to apply a predetermined motion to the laundry hung thereon. If the predetermined motion is applied to the laundry supplied air, heated air, water, mist or steam, the effect of laundry refreshing may be enhanced. -
FIG. 3 is a perspective view illustrating the movinghanger 50 andFIG. 4 is an exploded perspective view illustrating the movinghanger 50. - In reference to
FIGS. 3 and 4 , the movinghanger 50 includes ahanger bar 250 configured to support laundry hung on ahanger 200 and a supportingpart 280 configured to support both ends of thehanger bar 250. A plurality ofhanger recesses 251 may be provided in thebanger bar 250 to fix the location of thehanger 200 hung on thehanger bar 250. The supportingpart 280 is connected to a movinghanger frame 213 and the movinghanger frame 213 is provided beyond a ceiling of thecabinet 10, not to be seen outside. Both ends of thehanger bar 250 include supportingpart ribs 254, respectively, and the supportingrib 254 is covering the end of the supportingpart 280. - As a result, the clothes received in the laundry treatment apparatus according to the present invention are hung on at least one hanger. Because of that, not only an improved refreshing effect but also improved drying efficiency for the clothes may be expected, compared with the conventional laundry treatment apparatus.
- In the meanwhile, the moving
hanger 50 includes amotor 230, apower converting part 260 configured to convert a rotational force provided by themotor 230 into a horizontally linear motion of thehanger bar 250, and apower transmitting part 240 configured to transmit the power generated from themotor 230 to thepower transmitting part 260. - The
power transmitting part 240 includes adriving pulley 241 provided in themotor 230, a drivenpulley 242 connected to thedriving pulley 241 by abelt 243, and ashaft 244 coupled to a center of thedriving pulley 242. Theshaft 244 may be rotatably provided in a bearinghousing 270 provided in the movinghanger frame 213. - The
hanger bar 250 may further include aslot 252 which lies at right angles to its longitudinal direction. Specifically, aslot housing 253 is provided on thehanger bar 250 and theslot 252 is located approximately in a center of theslot housing 252. Thepower converting part 260 may include aslot inserting portion 263 inserted in theslot 252, ashaft connecting portion 261 connected to theshaft 244 and arotation arm 262 connecting theslot inserting portion 263 and theshaft connecting portion 261 with each other. Thepower converting part 260 is covered by acover 214 not to be seen outside and thecover 214 is provided between the movinghanger frame 213 and theslot housing 253. - Under this configuration, when the
motor 230 is rotated, thedriving pulley 242 is rotated and theshaft 244 coupled to the drivingpulley 242 is rotated. At this time, theslot inserting portion 263 will perform a circular motion, with a predetermined diameter. - Here, the
slot 252 provided in thehanger bar 250 may be orthogonal to the longitudinal direction of thehanger bar 250. By extension, the length of theslot 252 is larger than a rotational locus of theslot connecting portion 263. Because of that, theslot 252 may perform a linear motion along a horizontal direction even when theslot inserting portion 263 performs a circular motion. - In the meanwhile, a
mechanism chamber 20 configured to accommodate theair supplying device 22 and thewater supplying device 30 may be provided in thecabinet 10. Themechanism chamber 20 may be located below theaccommodating space 12 and it includes theair supplying device 22 and thewater supplying device 30 received therein. The reason why themechanism chamber 20 is located below theaccommodating space 12 is that the heated air or steam supplied to theaccommodating space 12 has a property of ascending and that themechanism chamber 20 is located below theaccommodating space 12 to supply the heated air or steam upwardly. -
FIG. 5 is a perspective view schematically illustrating an inner configuration of themechanism chamber 20. To illustrate the inner configuration of themechanism chamber 20, only aframe 11 of thecabinet 10 is shown inFIG. 5 for convenience sake. In addition, only main components including theair supplying device 22 and thewater supplying device 30 are illustrated inFIG. 5 for convenience sake and a drainage line connecting those components with each other is not illustrated. - In reference to
FIG. 5 , theair supplying device 22 configured to supply air or heated air to theaccommodating space 12 may be located within themechanism chamber 20. - A
heat pump 22 embodied as the air supplying device according to the present invention may include anevaporator 24, acompressor 26, acondenser 28 and an expansion valve (not shown) which allow refrigerant to flow there through. Because of that, air is dehumidified and heated. - In other words, latent heat of ambient air is absorbed, while refrigerant is evaporated in the
evaporator 24. After that, air is cooled and moisture contained in the air is condensed and eliminated. When refrigerant is condensed in thecondenser 28 after passing thecompressor 26, latent heat is exhausted toward ambient air. After that, the ambient air may be heated. As a result, the evaporator and thecondenser 28 are functioned as heat exchanger. The air sucked into themechanism chamber 20 may be dehumidified and heated while passing theevaporator 24 and thecondenser 28, to be supplied to theaccommodating space 12. - The air heated by the
heat pump 22 has a relatively lower temperature than the air heated by a conventional electric heater. However, the air heated by theheat pump 22 may be dehumidified without using any auxiliary dehumidifying device. As a result, the air re-supplied to theaccommodating space 12 by theheat pump 22 may be corresponding to ‘relatively low dry air’ (here, the term of ‘low temperature’ means not an absolutely low temperature but a relatively lower temperature than the temperature of conventional heated air). The laundry treatment apparatus according to the embodiment of the present invention may supply low temperature dry air to the laundry. Because of that, the laundry treatment apparatus according to the embodiment of the present invention may prevent deformity or damage which might be generated by the high temperature of heated air used in performing refreshing or drying for the laundry. That is, the air supplied by theheat pump 22 in the laundry treatment apparatus according to the embodiment of the present invention may have the lower temperature than the hot air supplied in the conventional laundry treatment apparatus but it may be dehumidified without any auxiliary dehumidifying device, to dry and refresh the laundry efficiently and smoothly. - Specifically, an air inlet (21A, see
FIG. 5 ) is formed in a front portion of a top of themechanism chamber 20 suck air of theaccommodating space 12 into themechanism chamber 20. An air path of the air may be formed by aninlet duct 29 configured to connect theair inlet 21A, theevaporator 24, thecondenser 28 and thefan 32 with each other. The air drawn into themechanism chamber 20 via theair inlet 21A by theinlet duct 29 may be dehumidified and heated while passing theheat pump 22. The dehumidified and heated air may be re-supplied to theaccommodating space 12 via anoutlet duct 33 and anair outlet 21B by afan 32. - Here, although not shown in the drawings, a filter may be provided in the
air inlet 21A. The filter provided in theair inlet 21A may filter various foreign substances contained in the air drawn into themechanism chamber 20 from theaccommodating space 12 and only fresh air can be re-supplied to theaccommodating space 12. - Furthermore, the
water supplying device 30 may be provided in themechanism chamber 20 to supply water, mist or steam (hereinafter, referenced to as ‘steam’) to theaccommodating space 12 selectively. - The
water supplying device 30 includes a heater (not shown) configured to heat water and the water is heated to generate steam. Thewater supplying device 30 supplies the generated steam to theaccommodating space 12. An external water tap may be used as water supply source supplying water to thewater supplying device 30 or a water supplying tank (not shown) may be provided in a predetermined portion of themechanism chamber 20 as water supply source. - The water supplying tank may be provided in a
door module 60 detachably installed in a predetermined portion of themechanism chamber 20. Because of that, a user may separate the water supplying tank from themechanism chamber 20 for water refill and he or she may re-install the tank. - Also, the steam generated in the
water supplying device 30 is supplied to theaccommodating space 12 via asteam hose 36 and a steam nozzle (40, seeFIGS. 1 and 2 ). In this case, it is more preferable, as the shorter thesteam hose 36 is, to prevent the temperature of the steam from being lowered or condensed while the steam moving through thesteam hose 36. When themechanism chamber 20 is located below theaccommodating space 12, thesteam nozzle 40 may supply steam via a top of themechanism chamber 20 which is a bottom of theaccommodating space 12. - A circulating fan (not shown) may be provided in a rear portion of the
mechanism chamber 20 and the circulating fan supplies external air to themechanism chamber 20. Because of that, the internal air of themechanism chamber 20 may be prevented from increasing too much when theheat pump 22 and thewater supplying device 30 are put into operation. - As follows, a control method of the laundry treatment apparatus having the configured described above will be described. The control method which will be described as follows is a control method performed when a course for sanitizing the laundry, namely, a sanitizing course out of refreshing courses is selected.
-
FIG. 6 is a flow chart illustrating a control method according to an embodiment of the present invention. - In reference to
FIG. 6 , a control method according to an embodiment of the present invention includes supplying water to the water supplying device and heating the water (S610), supplying steam to laundry by heating and generating the water supplied to the water supplying device, with the laundry kept still (S650), cooling the accommodating space (S670), and supplying heated air to the accommodating space to dry the laundry by using the heated air (S690). - First of all, the control part supplies water to the water supplying device 30 (S610). In this case, the control part supplies the water up until a full-water level of the water supplying device. For that, a water level sensor may be provided in the water supplying device to detect a water level. The control part controls the water to be supplied to the water supplying device until the water level sensor detects that the water reaches the full-water level.
- Here, the control part may further include heating the water until the temperature of the water reaches a predetermined temperature in the water supplying step. This step is configured to reduce the time required to heat the water to generate steam in a steam generating step which will be described later. The water may be heated at the moment when the water is supplied or in a predetermined time after the water is supplied. A heater and the like may be provided in the water supplying device to heat the water.
- Hence, the control part controls water to be re-supplied to the water supplying device (S630). This is configured to supplement water evaporated while heated in the water supplying step and the heating step (S610). Especially, when supplying steam to sanitize the laundry, the steam supplying time in the sanitizing course is longer than the steam supplying time in other courses such as a wrinkle removal course, a static electricity prevention course and deodorizing course. This is because a sanitization effect which uses steam has to be maximized. As the steam supplying time is increased, water may be supplied up to the water-full level of the water supplying device. Even when water is re-supplied to the accommodating space, the water may be supplied up to the full-water level of the water supplying device. The amount of the water which might be evaporated during the water supplying/heating step (S610) may be supplemented by the re-supply of the water. Because of that, the water may not be supplemented during the steam supplying. Here, the control part may further include a heating step configured to heat the water inside the water supplying device up to a predetermined temperature, which is performed in the re-supplying step.
- Hence, the control part controls the water inside the water supplying device to be heated and controls steam to be supplied to the accommodating space (S650). The control part controls the heater provided in the water supplying device to heat the water, to supply steam. When supplying steam to the accommodating space, the control part controls the laundry kept still, that is, motionless. This is because the laundry has to be kept motionless to enable the steam to penetrate through the laundry smoothly and efficiently. As a result, when the moving
hanger 50 is provided, the control part controls the movinghanger 50 to maintain an idle state, not operated, while supplying steam to the accommodating space. - After supplying steam, the control part controls unheated air to be supplied to the laundry for a predetermined time period to perform laundry cooling (S670). Only the
fan 32 is operated, not theheat pump 22, and unheated air is supplied to theaccommodating space 12 to perform the cooling. Because of that, it is possible to lower the internal temperature of the accommodatedspace 12 heated by the steam supplied thereto and the temperature of the laundry. - Hence, the control part controls air heated or dried by the
heat pump 22 to theaccommodating space 12, to dry the laundry (S690). When drying the laundry, the control part controls theheat pump 22 to supply the heated air having a temperature of 45° C. to 60° C., preferably, 50° C. to 55° C. The laundry containing relatively much moisture because of the steam supplying may be dried by the heated air supplied thereto, to be pleasantly wearable. - The control part may further include a step of applying a predetermined motion to the laundry in the drying step according to the control method of this embodiment. In other words, the control part may apply a predetermined motion to the laundry when supplying the heated air to the
accommodating space 12. Specifically, the control part drives the movinghanger 50 to apply the predetermined motion to the laundry. Especially, the control part drives the movinghanger 50 to apply a horizontal motion to the laundry with a preset RPM, for example, a horizontally linear motion, a horizontally closed curve motion and a horizontally reciprocating motion. The motion is applied to the laundry, simultaneously together with supplying the heated air. Compared with the laundry kept still without any motion, the laundry having the predetermined motion applied thereto may contact with more heated air and drying efficiency may be remarkably improved. The heated air supplying time may be adjustable properly according to the kind of the laundry, the kind of fabric, a property of fabric. The heated air supplying time determined according to the kind of the laundry may be stored in the control part in advance. The laundry moving time may be continued or periodically repeated for the heated air supplying time. -
FIG. 7 is a flow chart illustrating a control method according to another embodiment of the present invention. The control method shown inFIG. 7 includes a step of preheating the accommodating space after the water supplying/heating step (S710), compared with the above control method according to the embodiment. As follows, this difference will be described. - The control method according to this embodiment includes the preheating step configured to supply heated air to the
accommodating space 12 to increase the temperature of the accommodating space 12 (S711), after the water supplying/heating step (S710). If the temperature of theaccommodating space 12 is too low when steam is supplied to theaccommodating space 12, the sanitizing effect using steam will deteriorate. Because of that, the control part controls the temperature of theaccommodating space 12 to be increased up to a predetermined temperature, for example, 34° C. to 45° C. In this case, the control part drives theheat pump 22 to supply heated air to the accommodating space and the temperature of the accommodating space may be increased. - In the meanwhile, there may be the kinds of laundry items which are difficult for steam to penetrate even if the steam is supplied. For example, it is not easy to steam to penetrate a laundry item such as a doll with much hair. When sanitizing such a laundry item, it is necessary to increase the steam supplying time or the number of times supplying steam and the sanitizing effect may be maximized. However, the amount of water which can be accommodated in the water supplying device may be limited according to the volume of the water supplying device. Because of that, the steam supplying time may not be increased more than a predeterminedly limited value. As follows, the control method having the number of times supplying steam according to the kind of laundry items to be two or more will be described.
-
FIG. 8 is a flow chart illustrating a control method according to a further embodiment of the present invention. Compared with the above embodiment shown inFIG. 6 , this embodiment shown inFIG. 8 embodies that the number of steam supplying times is configured to be two or more. As follows, this difference will be described in detail. - In reference to
FIG. 8 , the control method according to this embodiment includes a first water supplying step (S811) supplying water to a water supplying device configured to supply steam, a first steam supplying step (S812) heating the water inside the water supplying device and supplying steam to laundry kept still, a second water supplying step (S813) re-supplying water to the water supplying device, a second steam supplying step (S814) heating the water inside the water supplying device and supplying steam to the laundry which is kept still, a cooling step (S815) cooling the accommodating space and a drying step (S816) supplying heated air with a predetermined temperature to the accommodating space. - Compared with the embodiment shown in
FIG. 6 , this embodiment embodies that the number of steam supplying times is two. The first water supplying step (S811) ofFIG. 8 may be corresponding to the water supplying/heating step (S610) and the second water supplying step (S813) is corresponding to the re-supplying step (S630). - According to this embodiment, the control part supplies water to the water supplying device (S811) and it heats the water to supply steam (S812). After performing the second water supplying (S813), the control part re-heats water and it re-supplies steam (S814). As mentioned above, the steam is dividedly supplied two times and this eventually increases the steam supplying time. Because of that, it may be possible to maximize the sanitizing effect for laundry items which is not easy for steam to penetrate. It is identical to the above embodiment to keep the laundry still motionlessly in each of the steam supplying steps.
- Description of the other steps according to this embodiment may be similar to the description according to the above embodiment shown in
FIG. 6 and detailed description will be omitted accordingly. -
FIG. 9 is a flow chart illustrating a control method according to a still further embodiment. Compared with the above embodiment according toFIG. 8 , the control method according toFIG. 9 includes a pre-heating step increasing the temperature of the accommodating space, which is performed two times or more. - In reference to
FIG. 9 , a control method according to this embodiment includes a first pre-heating step (S912) supplying heated air with a predetermined temperature to the accommodating space after the first water supplying step (S911) and a second pre-heating step (S914) supplying heated air with a predetermined temperature to the accommodating space after the first steam supplying step (S913). The reason why the pre-heating step is provided is that the sanitizing effect achieved by following first steam supplying step (S913) and second steam supplying step (S916) can be maximized. - The control part preheats the accommodating space to have a lower temperature in the first preheating step (S912) than in the second preheating step (S914). For example, the control part preheats the accommodating space to have a temperature of approximately 30° C. to 35° C. in the first preheating step (S912) and it preheats the accommodating space to have a predetermined temperature of approximately 35° C. to 45° C. in the second preheating step (S914). During the preheating, the control part supplies heated air to the accommodating space by using the heat pump. The other steps with not detailed description shown in
FIG. 9 are similar to corresponding steps according to the above embodiments and the descriptions thereof are omitted accordingly. - It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
- According to the control method having the above configuration and steps enables the laundry to be sanitized by using water, mist, steam and the like.
Claims (13)
1. A control method of a laundry treatment apparatus configured to supply steam and/or heated air to an accommodating space accommodating laundry therein, the control method comprising:
water supplying/heating step supplying water to a water supplying device configured to supply steam and heating the water;
re-supplying step re-supplying water to the water supplying device;
steam supplying step heating the water inside the water supplying device and supplying steam to the accommodating space, with the laundry kept still;
a cooling step cooling the accommodating space; and
a drying step supplying heated air having a predetermined temperature to the accommodating space.
2. The control method of claim 1 , further comprising:
a preheating step supplying heated air having a predetermined temperature to the accommodating space, the preheating step performed prior to the re-supplying step.
3. The control method of claim 1 , wherein the drying step applies a predetermined motion to the laundry.
4. The control method of claim 1 , wherein the water supplying/heating step and the re-supplying step supplies the water to a full-water level of the water supplying device.
5. The control method of claim 1 , wherein the re-supplying step includes a heating step heating the water inside the water supplying device to a predetermined temperature.
6. The control method of claim 2 , wherein the preheating step supplies heated air to the accommodating space until the temperature of the accommodating space reaches 35° C. to 45° C.
7. The control method of claim 2 , wherein the preheating step supplies heated air by a heat pump.
8. The control method of claim 1 , wherein the drying step supplies heated air having a predetermined temperature of 45° C. to 60° C.
9. A control method of a laundry treatment apparatus configured to supply stem and/or heated air to an accommodating space having laundry accommodated therein, the control method comprising:
first water supplying step supplying water to a water supplying device configured to supplying steam into the accommodating space;
first steam supplying step heating water inside the water supplying device and supplying steam into the accommodating space, with laundry kept still;
second water supplying step re-supplying water to the water supplying device;
second steam supplying step heating the inside the water supplying device and supplying steam into the accommodating space, with the laundry kept still;
cooling step cooling the accommodating space; and
drying step supplying heated air having a predetermined temperature to the accommodating space.
10. The control method of claim 9 , further comprising:
first preheating step supplying heated air having a predetermined temperature to the accommodating space, the preheating step performed after the first water supplying step; and
second preheating step supplying heated air having a predetermined temperature to the accommodating space, the second preheating step performed after the first steam supplying step.
11. The control method of claim 9 , wherein a predetermined motion is applied to the laundry in the drying step.
12. The control method of claim 10 , wherein the first preheating step supplies heated air to the accommodating space until the temperature of the accommodating space reaches 30° C. to 35° C.
13-15. (canceled)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR10-2009-0124668 | 2009-12-15 | ||
KR1020090124668A KR101147774B1 (en) | 2009-12-15 | 2009-12-15 | Control method of clothes treatment apparatus |
PCT/KR2010/008945 WO2011074859A1 (en) | 2009-12-15 | 2010-12-14 | Control method of laundry treatment apparatus |
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US20120246839A1 true US20120246839A1 (en) | 2012-10-04 |
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Application Number | Title | Priority Date | Filing Date |
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US13/515,769 Abandoned US20120246839A1 (en) | 2009-12-15 | 2010-12-14 | Control method of laundry treatment apparatus |
Country Status (5)
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US (1) | US20120246839A1 (en) |
KR (1) | KR101147774B1 (en) |
CN (1) | CN102725446B (en) |
DE (2) | DE202010017995U1 (en) |
WO (1) | WO2011074859A1 (en) |
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EP3388570A1 (en) * | 2017-04-14 | 2018-10-17 | LG Electronics Inc. | Clothes treating apparatus |
CN113005738A (en) * | 2016-05-31 | 2021-06-22 | Lg电子株式会社 | Control method of clothes treatment device |
US11519128B2 (en) * | 2020-02-11 | 2022-12-06 | Haier Us Appliance Solutions, Inc. | System and method for controlling static electricity within a dryer appliance |
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KR101708315B1 (en) * | 2015-06-02 | 2017-02-20 | 엘지전자 주식회사 | Clothes treating apparatus |
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KR101319874B1 (en) * | 2006-12-22 | 2013-10-18 | 엘지전자 주식회사 | control method of laundry dryer |
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KR100964695B1 (en) | 2008-01-03 | 2010-06-21 | 엘지전자 주식회사 | Dryer |
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2010
- 2010-12-14 DE DE202010017995U patent/DE202010017995U1/en not_active Expired - Lifetime
- 2010-12-14 CN CN201080056715.9A patent/CN102725446B/en active Active
- 2010-12-14 WO PCT/KR2010/008945 patent/WO2011074859A1/en active Application Filing
- 2010-12-14 US US13/515,769 patent/US20120246839A1/en not_active Abandoned
- 2010-12-14 DE DE112010004819.3T patent/DE112010004819B4/en active Active
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CN113005738A (en) * | 2016-05-31 | 2021-06-22 | Lg电子株式会社 | Control method of clothes treatment device |
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Also Published As
Publication number | Publication date |
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KR101147774B1 (en) | 2012-05-29 |
DE202010017995U1 (en) | 2013-07-24 |
DE112010004819T5 (en) | 2012-10-04 |
DE112010004819B4 (en) | 2017-08-17 |
WO2011074859A1 (en) | 2011-06-23 |
CN102725446A (en) | 2012-10-10 |
CN102725446B (en) | 2016-03-16 |
KR20110067890A (en) | 2011-06-22 |
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