US20120036650A1 - Laundry machine and control method thereof - Google Patents
Laundry machine and control method thereof Download PDFInfo
- Publication number
- US20120036650A1 US20120036650A1 US13/260,036 US200913260036A US2012036650A1 US 20120036650 A1 US20120036650 A1 US 20120036650A1 US 200913260036 A US200913260036 A US 200913260036A US 2012036650 A1 US2012036650 A1 US 2012036650A1
- Authority
- US
- United States
- Prior art keywords
- heater
- laundry machine
- tub
- control unit
- course
- 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.)
- Abandoned
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Images
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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
-
- 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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
- D06F35/007—Methods for washing, rinsing or spin-drying for spin-drying only
-
- 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
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/04—Heating arrangements
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/28—Electric heating
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The laundry machine includes a cabinet (110), a tub (120) in the cabinet for holding washing water, a drum (130) rotatably mounted in the tub (120), a heater (115) in the tub for heating the washing water, and a control unit for controlling the heater and the drum, wherein the control unit controls heater to operate selectively in a spinning course for drying washing objects.
Description
- The present invention relates to a laundry machine and a control method thereof.
- In general, in the laundry machine, there are washing machines for washing, dryers for drying, and washing and drying machines for washing and drying. The laundry machine, provided with a washing course, a rinsing course, a spinning or drying course, processes washing objects.
- An object of the present invention is to provide a laundry machine and a control method thereof which can remove moisture from a washing object more effectively.
- To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a laundry machine includes a cabinet, a tub in the cabinet for holding washing water, a drum rotatably mounted in the tub, a heater in the tub for heating the washing water, and a control unit for controlling the heater and the drum, wherein the control unit controls the heater to operate selectively in a spinning course for drying washing objects.
- The control unit turns on/off the heater in predetermined periods, or the control unit controls the heater to operate below a predetermined temperature so that the heater is not overheated.
- In the meantime, the control unit controls the drum to rotate higher than a predetermined speed.
- In another aspect of the present invention, a method for controlling a laundry machine having a washing course, a rinsing course and a spinning course, includes the steps of driving a heater in the spinning course selectively, and rotating a drum higher than a predetermined speed.
- The laundry machine and the control method thereof of the present invention have following advantageous effects.
- The preliminary drying step of the present invention permits to remove moisture from the washing objects more than a predetermined amount, thereby permitting drying the washing objects faster than drying the washing objects naturally, or with a laundry machine having a drying function.
- Moreover, the laundry machine and the control method thereof of the present invention enable to remove moisture from the washing objects without providing heating means to the laundry machine additionally.
- The accompanying drawings, which are included to provide further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain the principle of the disclosure.
- In the drawings:
-
FIG. 1 illustrates a longitudinal section of a laundry machine in accordance with a preferred embodiment of the present invention; -
FIG. 2 illustrates a flow chart showing the steps of a method for controlling a laundry machine in accordance with a preferred embodiment of the present invention; -
FIG. 3 illustrates a longitudinal section of a laundry machine in accordance with another preferred embodiment of the present invention; and -
FIG. 4 illustrates a flow chart showing the steps of a method for controlling a laundry machine in accordance with another preferred 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.
-
FIG. 1 illustrates a longitudinal section of a laundry machine in accordance with a preferred embodiment of the present invention. - Referring to
FIG. 1 , the laundry machine includes acabinet 110 which forms an exterior of the laundry machine, atub 120 mounted in thecabinet 110 for holding washing water, adrum 130 rotatably mounted in thetub 120, and a control unit (not shown) for controlling the laundry machine. - The
cabinet 110 has abody 111 which forms sides, a rear and a bottom of the laundry machine, afront plate 112 which forms a front of the laundry machine, and atop plate 113 coupled to a top of thebody 111 to form a top surface of the body. Thefront plate 112 which forms the front of thecabinet 110 has a laundry opening 112 a for introduction of laundry therethrough. The laundry opening 112 a is provided with a door for opening/closing the laundry opening 112 a. - Mounted to one side of the
cabinet 110, there may be aninput unit 180 for user's operation of the laundry machine. The user can input a desired course of the laundry machine through theinput unit 180. Moreover, theinput unit 180 has a display unit (not shown) for displaying information on the laundry machine. - In the meantime, the
tub 120, mounted in the cabinet, 110 has an upper portion suspended from an upper side of an inside of thecabinet 110 bysprings 121, and a lower portion supported on adamper 122. Thesprings 121 and thedampers 122 support thetub 120 and attenuate vibration from thedrum 130 to thetub 120 when thedrum 130 rotates at a high speed. - The
drum 130 is mounted in thetub 120 so as to be rotatable in a regular or reverse direction. The control unit makes thedrum 130 to rotate for progressing washing, rinsing, and spinning. Mounted on an inside circumference of thedrum 130, there may belifters 131 for lifting the laundry introduced to thedrum 130 to a predetermined position. Thedrum 130 has a plurality of pass throughholes 132 formed therein, for the washing water to enable to move in/out of thedrum 130 in a washing course, and rinsing course. - Mounted in the
cabinet 110, there are awater supply hose 140 for supplying water to thetub 120 from an external water supply source, awater supply valve 141 mounted to thewater supply hose 140 for controlling in/out of the water, and adetergent supply unit 142 for holding detergent therein such that the water being supplied through thewater supply hose 140 is introduced to the inside of thetub 120 together with the detergent. The washing water or rinsing water is supplied from the water supply source to the inside of thetub 120 through thedetergent supply unit 142 following thewater supply hose 140. Also, mounted in thecabinet 110, there are adrain hose 150 and adrain pump 151 for draining the washing water used in the washing course or the rinsing course to an outside of the laundry machine. - In the meantime, mounted in a rear or the
tub 120, there is adriving unit 160, such as a motor. Thedriving unit 160 coupled to thedrum 130 through arotation shaft 165, for rotating thedrum 130. - In a case the washing course and the rinsing course are carried out by using the laundry machine, the course may be progressed by using water heated by selection of the user or a course selected by the user. In a case heated water is required thus, a
heater 125 may be provided to the inside of thetub 120 for heating the water. Moreover, a temperature sensor (not shown) may be mounted to the inside of thetub 120 for measuring a temperature of the washing water, additionally. Accordingly, the control unit puts theheater 125 into operation to heat the water in thetub 120 if heated water is required, and measures the temperature of the water with the temperature sensor, for heating the water to a desired temperature. - In general, the laundry machine having above system washes the washing objects by introducing the washing objects into the
drum 130, supplying the washing water and the detergent into thedrum 130 and thetub 120, and rotating thedrum 130. Upon finishing the washing course, the washing objects are rinsed in the rinsing course to remove residual detergent from the washing objects, and moisture is removed from the washing objects in the spinning course, firstly. - However, even if the moisture is removed from the washing objects in the spinning course, the user can not put on the washing objects, the clothes, at once, but the user can put on the clothes only after the clothes is passed through a drying step. The drying step can be made outdoors naturally by sunshine or wind, or by a laundry machine having a drying function on the drying objects taken out of the laundry machine after finishing the spinning course. In a case the drying step is made outdoors naturally, though it has advantage in that no energy is consumed together with a sterilizing effect, it has disadvantage in that comparatively long drying time period is required. Therefore, if the moisture is removed from the washing objects before the drying step, the drying time period can be shortened even in the case the drying step is made naturally, which will be described in detail.
- The present invention includes a preliminary drying step for removing a predetermined amount of moisture from the drying objects before starting the drying step of the drying objects. As described before, the drying step includes the drying made in outdoors naturally and the drying made at the laundry machine having a drying function.
-
FIG. 2 illustrates a flow chart showing the steps of a method for controlling a laundry machine in accordance with a preferred embodiment of the present invention. - Referring to
FIG. 2 , the control method includes a washing course S210, a rinsing course S230, and a spinning course, and in the spinning course, the preliminary drying step is performed at the same time S250. - Since the washing course and the rinsing course are similar to the related art laundry machine, detailed description of this will be omitted.
- In detail, the preliminary drying step can be performed in the spinning course. If the preliminary drying step is performed in the spinning course, since no separate rotation of the
drum 130 is required in the preliminary drying step in addition to the spinning course, it is favorable in view of energy saving. - Upon finishing draining at an end of the rinsing course, the control unit puts the
heater 125 into operation. In this case, since there is almost no washing water remained in thetub 120 after the rinsing is almost finished, if theheater 125 is kept turned on for a long time period, theheater 125 is likely to be overheated to malfunction. Therefore, it is preferable that the control unit controls theheater 125 such that theheater 125 is turned on/off in predetermined periods for preventing theheater 125 from overheating. - If the
heater 125 is turned on/off in predetermined periods, is possible to heat environmental air of theheater 125 while preventing theheater 125 from overheating. - Then, the control unit makes the
drum 130 to rotate at a speed higher than a predetermined speed for performing the spinning course. If thedrum 130 is rotated at the speed higher than a predetermined speed, the moisture is removed from the washing objects by centrifugal force, firstly. Moreover, the rotation of thedrum 130 generates an air flow in thedrum 130. According to this, the air heated by theheater 125 can flow following the rotation of thedrum 130 and can be supplied to the washing objects. As the heated air is supplied to the washing objects, the moisture remained at the washing objects can be removed, secondly. - In the meantime,
FIG. 3 illustrates a longitudinal section of a laundry machine in accordance with another preferred embodiment of the present invention. The laundry machine inFIG. 3 is different from the foregoing laundry machine in that the laundry machine inFIG. 3 includes anair flow passage 170 which makes an inside and an outside of thetub 120 into communication. - Accordingly, the laundry machine of the embodiment may be provided with a
fan 172 mounted to theair flow passage 170 for causing an air flow in thetub 120 and thedrum 130. That is, it is possible that the heater is put into operation for heating the air, and the fan on theair flow passage 170 is put into operation to cause the air flow in thedrum 130. By this, it is made possible that the heated air is supplied to the washing objects. - Eventually, the laundry machine of the present invention does not remove the moisture from the washing objects merely by centrifugal force owing to rotation of the drum like the spinning course in the related art, but, in addition to this, removes the moisture from the washing objects more effectively by supplying the heated air to the washing objects.
- In the meantime, the preliminary drying step can be performed before or after the spinning course.
-
FIG. 4 illustrates a flow chart showing the steps of a method for controlling a laundry machine in accordance with another preferred embodiment of the present invention.FIG. 4 illustrates an embodiment in which the preliminary drying step is performed after finishing the spinning course. For an example, according to the user's course selection, a course can be set such that the preliminary drying step is performed at an end of the course after the spinning course is finished, automatically. Or, the preliminary drying step may be performed according to user's selection after a selected course is finished. The user can select to perform the preliminary drying step at theinput unit 180. - Thus, if the preliminary drying step is added to an end of the selected course, the preliminary drying step can be performed while the drum is rotating by inertia after the spinning course is finished. In this case, the
drum 130 can rotate at a predetermined speed, for an example, 40 to 100 RPM. Though thedrum 130 rotates at a rotation speed of the spinning course since the preliminary drying step is performed in the middle of the spinning course in the foregoing embodiment described with reference toFIG. 2 , since the preliminary drying step is performed after finishing the spinning course in the embodiment described with reference toFIG. 4 , the rotation speed of thedrum 130 can be lower than the rotation speed of the spinning course. - In the meantime, if temperature control of the
heater 125 provided to the laundry machine is possible, it is also possible that theheater 125 can heat the air while theheater 125 is kept turned on below a predetermined temperature at which theheater 125 is overheated. Even in a case theheater 125 is kept turned on below the predetermined temperature, it is preferable that theheater 125 is turned off periodically in a case theheater 125 is kept turned on more than a certain time period for preventing theheater 125 from overheating. - In the meantime, instead of rotating the
drum 130 for generating the air flow in the preliminary drying step, a flow generating member may be provided at one side of thetub 120 adjacent to theheater 125 which can generate the air flow. It is preferable that the flow generating member is of a screw type that can be submerged in water taking that the washing water is held in thetub 120. - Though the foregoing embodiment suggests heating the air with the heater which heats the washing water, the preliminary drying step of the present invention is not limited to the foregoing embodiment. For an example, since a laundry machine having a drying function is provided with a hot air supply unit in the laundry machine for supplying hot air to the inside of the tub, the preliminary drying step can be made by supplying the hot air by using the hot air supplying unit.
- 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 invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
- The preliminary drying step of the present invention permits to remove moisture from the washing objects more than a predetermined amount, thereby permitting drying the washing objects faster than drying the washing objects naturally, or with a laundry machine having a drying function.
- Moreover, the laundry machine and the control method thereof of the present invention enable to remove moisture from the washing objects without providing heating means to the laundry machine additionally.
Claims (11)
1. A laundry machine comprising:
a cabinet;
a tub provided in the cabinet for holding washing water;
a drum rotatably provided in the tub;
a heater provided in the tub for heating the washing water; and
a control unit controlling the heater and the drum,
wherein the control unit selectively operates the heater in a spinning course for drying washing objects.
2. The laundry machine as claimed in claim 1 , wherein the control unit turns on/off the heater in predetermined periods.
3. The laundry machine as claimed in claim 1 , wherein the control unit operates the heater below a predetermined temperature so that the heater is not overheated.
4. The laundry machine as claimed in claim 2 , wherein the control unit rotates the drum higher than a predetermined speed.
5. The laundry machine as claimed in claim 3 , wherein the control unit rotates the drum higher than a predetermined speed.
6. he laundry machine as claimed in claim 1 , further comprising an air-flow device for causing an air flow in the tub.
7. The laundry machine as claimed in claim 6 , wherein the air-flow device comprises a fan provided in an air flow passage communicating an inside of the tub with an outside of the tub.
8. The laundry machine as claimed in claim 7 , wherein the control unit operates the fan when the heater is operated.
9. A method for controlling a laundry machine having a washing course, a rinsing course and a spinning course, comprising the steps of:
operating a heater in the spinning course selectively; and
rotating a drum higher than a predetermined speed.
10. The method as claimed in claim 9 , wherein the control unit turns on/off the heater in predetermined periods.
11. The method as claimed in claim 9 , wherein the control unit operates the heater below a predetermined temperature so that the heater is not overheated.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090039052A KR20100120053A (en) | 2009-05-04 | 2009-05-04 | Laundry machine and control method thererof |
KR10-2009-039052 | 2009-05-04 | ||
PCT/KR2009/005184 WO2010128730A2 (en) | 2009-05-04 | 2009-09-11 | Laundry machine and control method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120036650A1 true US20120036650A1 (en) | 2012-02-16 |
Family
ID=43050588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/260,036 Abandoned US20120036650A1 (en) | 2009-05-04 | 2009-09-11 | Laundry machine and control method thereof |
Country Status (3)
Country | Link |
---|---|
US (1) | US20120036650A1 (en) |
KR (1) | KR20100120053A (en) |
WO (1) | WO2010128730A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013202318A (en) * | 2012-03-29 | 2013-10-07 | Toshiba Corp | Washing machine |
US20150211171A1 (en) * | 2012-08-29 | 2015-07-30 | Electrolux Home Products Corporation N.V. | Laundry Washing Machine |
US9903065B2 (en) | 2012-08-29 | 2018-02-27 | Electrolux Home Products Corporation N.V. | Laundry washing machine |
US11286610B2 (en) * | 2018-12-13 | 2022-03-29 | Lg Electronics Inc. | Laundry machine having induction heater and control method of the same |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102953251B (en) * | 2011-08-27 | 2017-02-08 | 博西华电器(江苏)有限公司 | Fabric processing device and method for controlling spin-drying and drying processes thereof |
KR102011816B1 (en) | 2012-02-01 | 2019-08-19 | 엘지전자 주식회사 | Controlling Method for Laundry machine |
JP2018007938A (en) * | 2016-07-15 | 2018-01-18 | 東芝ライフスタイル株式会社 | Washing and drying machine |
CN110541274B (en) * | 2018-05-28 | 2022-11-15 | 博西华电器(江苏)有限公司 | Clothes care machine and control method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4024735A (en) * | 1974-11-30 | 1977-05-24 | Zallas Establishment | Washing machine |
US20050081308A1 (en) * | 2003-10-21 | 2005-04-21 | Kim Jae M. | Washing machine and control method thereof |
US20050132757A1 (en) * | 2003-12-18 | 2005-06-23 | Lg Electronics Inc. | Washing machine with drying function and method of controlling the same |
US20070169283A1 (en) * | 2006-01-26 | 2007-07-26 | Samsung Electronics Co., Ltd. | Washing machine and method for controlling the same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2340390A1 (en) * | 1976-02-05 | 1977-09-02 | Licentia Gmbh | Clothes drying in automatic washing machine - using simultaneous spin drying and hot air drying |
JP3346993B2 (en) * | 1996-09-13 | 2002-11-18 | 株式会社東芝 | Washing and drying machine |
-
2009
- 2009-05-04 KR KR1020090039052A patent/KR20100120053A/en not_active Application Discontinuation
- 2009-09-11 WO PCT/KR2009/005184 patent/WO2010128730A2/en active Application Filing
- 2009-09-11 US US13/260,036 patent/US20120036650A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4024735A (en) * | 1974-11-30 | 1977-05-24 | Zallas Establishment | Washing machine |
US20050081308A1 (en) * | 2003-10-21 | 2005-04-21 | Kim Jae M. | Washing machine and control method thereof |
US20050132757A1 (en) * | 2003-12-18 | 2005-06-23 | Lg Electronics Inc. | Washing machine with drying function and method of controlling the same |
US20070169283A1 (en) * | 2006-01-26 | 2007-07-26 | Samsung Electronics Co., Ltd. | Washing machine and method for controlling the same |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013202318A (en) * | 2012-03-29 | 2013-10-07 | Toshiba Corp | Washing machine |
US20150211171A1 (en) * | 2012-08-29 | 2015-07-30 | Electrolux Home Products Corporation N.V. | Laundry Washing Machine |
US9777426B2 (en) * | 2012-08-29 | 2017-10-03 | Electrolux Home Products Corporation N.V. | Laundry washing machine |
US9903065B2 (en) | 2012-08-29 | 2018-02-27 | Electrolux Home Products Corporation N.V. | Laundry washing machine |
US11286610B2 (en) * | 2018-12-13 | 2022-03-29 | Lg Electronics Inc. | Laundry machine having induction heater and control method of the same |
US20220290354A1 (en) * | 2018-12-13 | 2022-09-15 | Lg Electronics Inc. | Laundry machine having induction heater and control method of the same |
US11739470B2 (en) * | 2018-12-13 | 2023-08-29 | Lg Electronics Inc. | Laundry machine having induction heater and control method of the same |
Also Published As
Publication number | Publication date |
---|---|
KR20100120053A (en) | 2010-11-12 |
WO2010128730A3 (en) | 2011-08-04 |
WO2010128730A2 (en) | 2010-11-11 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: LG ELECTRONICS INC., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HONG, SANG WOOK;CHANG, JAE WON;PARK, SUN YOUNG;AND OTHERS;SIGNING DATES FROM 20110920 TO 20110922;REEL/FRAME:026975/0930 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |