WO2019164244A1 - 세탁장치 및 이의 제어방법 - Google Patents
세탁장치 및 이의 제어방법 Download PDFInfo
- Publication number
- WO2019164244A1 WO2019164244A1 PCT/KR2019/002040 KR2019002040W WO2019164244A1 WO 2019164244 A1 WO2019164244 A1 WO 2019164244A1 KR 2019002040 W KR2019002040 W KR 2019002040W WO 2019164244 A1 WO2019164244 A1 WO 2019164244A1
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- WIPO (PCT)
- Prior art keywords
- drum
- washing
- water
- drive
- driving
- Prior art date
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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
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
Definitions
- the present invention relates to a laundry machine, and more particularly, to a laundry machine for heating a drum by an induction heater and a control method thereof.
- the washing apparatus includes a tub (outer tub) for storing wash water and a drum (inner tank) rotatably provided in the tub. Laundry is provided inside the drum, and the drum is washed with detergent and washing water as the drum rotates.
- hot wash water is supplied into the tub or heated inside the tub.
- the bottom of the inside of the tub is recessed downward to form a heater mounting portion, it is common that the heater is provided in the heater mounting portion.
- Such heaters are generally sheath heaters.
- the heater When washing with cold water, the heater is not driven. However, in general washing, the temperature of the washing water is set to 40 degrees Celsius or more, and thus, in many cases, the heater is driven during washing.
- the amount of wash water required for washing may be determined by the amount of wash water required for the heater protection level and the amount of wash water required for the filling.
- approximately 6 liters of wash water should be supplied to ensure heater protection for the heater to be fully submerged.
- approximately 6 liters of wash water is supplied to the tub so that the heater is completely submerged in the wash water and the lower part of the drum is submerged in the wash water.
- washing water in addition to heater protection, more washing water is required for the filling.
- the amount of water contained by the water supply is about 200% of the amount of water. Therefore, as the amount of water increases, the amount of wash water for the bulking increases. Approximately 6 liters of washing water will be needed for a bulking capacity of approximately 3 kg.
- the foaming is performed, and after the watering is finished, the foaming is completed and the foaming is finished. And water supply can be continued to meet the heater protection level during the loading.
- the water supply during the filling is an additional water supply to distinguish it from the water supply before the full loading.
- the amount of wash water required to reach the heater protection level when the fabric is completely wet is approximately 6 liters.
- Circulation system is a system that removes the washing water from the inside of the tub through the circulation pump and then sprayed back into the drum.
- the circulation system may include a flow path and injection nozzles forming a circulation path in addition to the circulation pump. Through this circulation system, the detergent-dissolved washing water may be sprayed onto the fabric inside the drum to further enhance the washing effect.
- the washing apparatus to which the circulation system is applied, more washing water may be required for the circulation of the washing water. This is because the wash water exists on the circulation path from the outside of the tub to the inside of the drum. Therefore, the washing water is further supplied by the amount of the washing water on the circulation path so that the heater protection level is adjusted.
- the water level frequency at the heater protection level is approximately 24.7 KHz or less. The higher the water level frequency, the lower the water level.
- Fig. 1 shows the relationship between the washing step and the running rate of the drum in a washing machine having a washing water heater and a circulation pump.
- the driving of the drum and the driving of the circulation pump can be synchronized. Therefore, the running rate of the motor and the running rate of the circulation pump may be the same.
- the drum may be tumbling. Tumbling through forward and reverse rotation, the drum RPM during tumbling is approximately 40 RPM. If more than 1.5 liters of wash water is supplied after the initial watering, the tumbling begins and the filling is carried out and the watering continues.
- the circulation of the wash water may be carried out in the process of coating to further promote the filling. Then, water supply and packing are performed until the water level of the wash water is no longer changed at the heater protection level. That is, the foaming may be performed until the fabric is completely wet so that it no longer absorbs the wash water.
- the wash water heater is driven to heat the supplied wash water.
- the motor running rate is designed to be minimal when the wash water is heated. It is designed to have a running rate of approximately 13%. That is, the time that the motor is driven with respect to the entire heating section time may be designed to be approximately 13%. Minimal tumbling is required to evenly heat the fabric and wash water.
- the drum rotates, a portion of the wash water rotates with the drum. That is, scattering of the wash water may occur, and the surface of the water may fluctuate and the heater may be exposed to the air.
- the heater protection level is not kept by the air exposure of such a heater. For this reason, tumbling is required during heating, but the operating rate is set to a minimum to maintain the heater protection level. As a result, the running rate in the heating section is relatively low compared to the water filling core section or the main washing section.
- the washing effect in the heating section is not large. That is, the washing time is increased by the time necessary for heating and there is a problem in that the heating time cannot be used to secure washing performance.
- the driving of the circulation pump is stopped in the heating section. That is, it is not synchronized with the driving of the drum and the circulating pump running rate in the heating section may be 0%. This is because when the circulation pump is driven, the washing water of about 1.5 liters or more must be additionally supplied as described above. In addition, the heater protection level may be destroyed by the driving of the circulation pump and the tumbling driving.
- the drum When the wash water is heated up to the target temperature, the drum is driven with the actuation rate being approximately 70%, and full washing is performed. In this washing, the circulation pump may be driven.
- the present invention basically aims to solve the problem of the conventional washing machine.
- the present invention to prevent overheating by the induction module and to provide a safe washing apparatus and a control method thereof.
- it is intended to provide a washing apparatus and a control method thereof in which the induction module is driven (heating rate of the induction module) in the heating section to increase heating and washing efficiency.
- the drive of the drum and the drive of the induction module is controlled to interlock with each other, in particular by the drive of the circulation pump to prevent the overheating of the drum by the induction module and its control method To provide.
- a drying temperature sensor for detecting the overheat of the drum.
- to maintain the driving of the predetermined drum and / or circulation pump during the forced stop of the induction module to provide a washing apparatus and a control method thereof that can quickly eliminate the drum overheating.
- the drying temperature sensor having a different installation location, different sensing targets and different sensing time and the washing water temperature sensor for detecting the temperature of the wash water, to prevent overheating by the induction module To provide a safe washing apparatus and its control method.
- the tub, the drum, the induction module for heating the drum by induction and the tubing to wash the water in the tub and the circulation to supply the upper drum It is possible to provide a washing apparatus having a pump and a control method thereof.
- a control method can be provided.
- the washing apparatus may perform a washing course while sequentially performing a washing stroke, a rinsing stroke, and a dehydrating stroke.
- the water supply step, the filling step, the heating step, and the washing step may be sequentially performed and finished.
- the water supply step it is preferable that the water supply is performed at a washing water level above a water supply level at which a lower portion of the drum is immersed in the washing water.
- a sufficient amount of washing water must be supplied to completely wet the fabric.
- the water supply through the water supply valve is preferably performed a plurality of times so that the washing water level rises step by step.
- watering may be performed intermittently or intermittently. And in later rounds, watering can be carried out continuously.
- the filling step further includes the step of measuring the water level, and when the water level measured in the water level measuring step is smaller than the preset circulation level, an additional water supply step may be performed.
- the water level is lowered through the enveloping stage. This is because the bubble absorbs water.
- the filling stage it is important at what level additional water supply is needed or at what level the additional water supply is terminated and thus the finishing process is completed. This is because the washing water required in the washing operation can be determined in the lapping step because substantially all of the water supply is finished in the lapping step. This is also because the level at the filling stage may be equal to the subsequent heating level.
- the circulating water level is presented as the reference water level in the filling step in this embodiment.
- the circulating water level may be referred to as a washing water level formed by washing water in an amount less than or equal to the amount of washing water filled in the circulation path for driving the circulation pump.
- the circulation level may be a level at which the lowest end of the drum is not immersed in the wash water.
- the amount of wash water corresponding to the circulating water level is preferably less than 1.5 liters, preferably about 1 liter or more.
- the additional water supply step is preferably performed up to the circulation water level. And it is preferable that the additional water supply step is performed at an air level substantially free of residual water in the tub. That is, it is preferable to perform additional water supply when the water level in the tub detects the air level while performing the filling, and the additional water supply is preferably performed up to the circulation level.
- the driving of the drum and the circulation pump is stopped. This is to accurately sense the level at the calm level.
- the washing water level is lower than the lowest end of the drum except for the start time at the beginning of the starting time. Therefore, in order to perform the core, it is preferable to perform a circulating pump driving which pumps the washing water from the bottom of the tub and sprays it onto the drum.
- the drum drive in the stacking step includes a tumbling drive and a filtration drive.
- the gun By the tumbling drive, the gun is evenly distributed and the function of inverting the gun is reversed. This allows the gun to be evenly soaked.
- the washing water can be discharged from the cloth at the same time by spraying the washing water to the wide spread cloth through the filtration operation. That is, the wash water can penetrate the cloth. Through such a filtration operation, it is possible to secure the washing water necessary for the circulation of the washing water and to wet the cloth effectively.
- the tumbling driving and the filtration driving may be performed sequentially and repeatedly.
- the filtration pump can be used to drive a circulating pump even with a small amount of washing water to carry out a blanketing.
- the cladding can be performed more effectively.
- the driving of the drum may include a circular driving in which filtration driving is continuously performed in the tumbling driving.
- a circular driving in which filtration driving is continuously performed in the tumbling driving.
- the drum may begin to rotate and be accelerated to drive at the tumbling RPM, then accelerated again to maintain drum rotation at the filtration RPM.
- the motor is turned off at the filtration RMP the drum will decelerate and stop. Therefore, continuous tumbling driving and filtration driving can be performed.
- the circulation driving is performed a plurality of times, and preferably linked to the driving of the circulation pump.
- the on time of the motor for the circulating drive and the on time of the circulating pump are the same, and the off time of the motor and the off time of the circulating pump for terminating the circulation drive are preferably the same. That is, the motor on section and the circulation pump on section may be the same.
- the wash water is sufficient to drive the circulation pump. Therefore, it is preferable that the tumbling drive is performed in the electric section of the circulation drive and the filtration drive is performed in the later section of the circulation drive.
- the time required for the tumbling drive in the circulation drive is greater than the time required for the filtration drive. This is to further enhance the effect of siege.
- the heating step and the main washing step it is preferable that additional water supply through the water supply valve is excluded.
- the final target level in the water supply stage is higher than the final target level in the filling stage.
- the water supply is preferably carried out both in the water supply stage and the bubbling stage. Through this, it is possible to reduce the time required for water supply in the washing administration, thus reducing the overall washing time.
- the lamination step is preferably terminated if there is no change in the washing water level after driving the drum and the circulation pump. That is, it is preferable that the lamination step is completed when the lamination is completely made and there is no further decrease in the washing level by the lamination.
- the filling step is preferably terminated at the circulating water level formed by the washing water in the washing water level is less than or equal to the amount of the washing water filled in the circulation path for driving the circulation pump.
- the heating step and the main washing step are performed at the circulating water level.
- Washing water level in the heating step is preferably a level that is not immersed in the wash water.
- the washing water level is preferably equal to or less than the circulating water level formed by the washing water in an amount less than or equal to the amount of washing water filled in the circulation path for driving the circulation pump.
- the circulation pump can be normally driven with a minimum of washing water.
- the amount of wash water stored in the tub in the heating step to form the circulation level is more preferably 1 liter or less.
- the minimum amount of wash water means that the total amount of wash water is small, thereby providing high concentration of detergent water.
- the drum, the circulation pump and the induction module is preferably driven.
- the outer circumferential surface of the drum is heated by the induction module, where the drum is rotated so that the drum is heated evenly.
- the drum rotates and washing water is sprayed inside the drum.
- the washing water not only the washing water but also the grapes can be heated evenly.
- the objects to be heated by the induction module are substantially drums, wash water and fabrics.
- the volume of drum and cloth and the maximum amount of wash water contained in the cloth are the same, it can be seen that the lower the amount of residual wash water, the higher the heating efficiency.
- only residual washing water much smaller than the amount of residual washing water required for the heater protection level is required. Therefore, heating efficiency can be further improved.
- the section in which the drum is driven may include a section in which the circulation pump and the induction module are driven. That is, the circulation pump and the induction module can be driven only when the drum is driven. This is because it is effective to spray the washing water at this time since the fabric in the drum moves when the drum is driven.
- the induction module when the drum is driven, the induction module must be driven to prevent overheating of the drum and the drum can be heated evenly. In addition, it is to heat the entire wash water including the residual wash water.
- the actuation rate of the drum is 50% or more, more preferably 80% or more.
- Heating in this embodiment is generally different from heating the cloth by heating the wash water and supplying the heated wash water to the cloth.
- the drum is directly heated to simultaneously heat the cloth and the wash water. Since the drum is directly heated, not the heater immersed in the wash water, the heater protection level is meaningless in this embodiment. Therefore, the running rate can be very high in the heating step.
- the cloth can be further provided with a mechanical effect to increase the washing effect.
- the fabric and wash water can be heated evenly.
- the driving of the drum may include a tumbling driving and a filtration driving.
- the driving of the drum may include a circular driving in which the filtration driving is continuously performed in the tumbling driving.
- the drum is tumbling drive in the first half of the section in which the circulation pump is operated and the filtration drive in the second half.
- a tub for receiving wash water A drum rotatably provided in the tub, the drum being accommodated therein; A motor for driving the drum; An induction module mounted to the tub to heat the drum through induction heating; A circulation pump for pumping the washing water inside the tub and supplying the washing water into the drum; A water supply valve provided to supply wash water into the tub; A water level sensor for sensing the wash water level in the tub; And a control unit for controlling the driving of the motor, the induction module, the circulation pump, and the water supply valve, wherein the control unit is configured to the target water level in which the level of the wash water detected by the water level sensor is lower than the lowest end of the drum.
- the washing apparatus may be provided to control the washing water to be supplied through a water supply valve, and to control the drum and the circulation pump to be driven after the target water level is reached.
- the heating step and the present washing step may be performed.
- the drum, the circulation pump and the induction module may be driven in the heating step. It is preferable that no further water supply is performed after reaching the target water level.
- the heating step can be performed.
- the controller may control the heating step to be performed after the final end of the water supply.
- the controller may control the circulation pump and the induction module to be driven in the section in which the drum is driven.
- control unit can control the water supply through the water supply valve and the water level sensor, the drive control of the induction module, the drive control of the drum and the drive control of the circulation pump, it is possible to implement a washing apparatus providing a very effective washing method.
- the tub, the drum, the induction module for heating the drum by induction and the tubing to wash the water in the tub and the circulation to supply the upper drum A control method of a washing apparatus having a pump, the method comprising: a water supply step of supplying washing water into a tub through a water supply valve; After completion of the water supply step, operating the circulating pump to circulate the wash water and to drive the drum to carry out the foaming step; A heating step of driving and heating the induction module after completion of the filling core step; And a washing step of washing the drum by driving the drum after completion of the heating step, wherein the heating step is performed while the level of the washing water is lower than the lowest end of the drum, and the drum, the circulation pump and the induction.
- a module may be driven to provide a method for controlling a washing apparatus, wherein the drum, washing water, and fabric are heated.
- the water supply valve through A water supply step of supplying the washing water into the tub; And a heating step of driving and heating the induction module after completion of the water supply step.
- driving of the drum and driving of the induction module are controlled to be interlocked. It may include a section in which the induction module is driven, the control method of the laundry machine, characterized in that the driving of the induction module is excluded outside the section in which the drum is driven.
- the water supply step may include both an initial water supply step and an additional water supply step.
- the water supply may be performed a plurality of times, and the water supply time point may be sequentially a plurality of times.
- the filling step may be performed in the water supply stage, and the heating step may be performed when the water supply and the filling core are completed.
- the main washing may be performed in earnest after the washing water is heated by heating.
- cold water may be supplied to carry out the bubbling. It is preferable that washing is performed after the cold water is heated after the completion of the filling. Since the fabric is completely wetted with cold water and heated, the thermal damage of the fabric can be minimized.
- washing the detergent contained in the drum A water supply step in which water is supplied; After the water supply step, a wetting step of wet the laundry contained in the drum with washing water; And after the filling step, heating the washing water and the laundry through the drum by repeatedly supplying the water in the tub to the laundry in the drum through the circulation pump, and driving the induction heater while rotating the drum
- a control method of a washing apparatus comprising a.
- a tub for storing the wash water A drum rotatably provided in the tub to accommodate laundry; A circulation pump for circulating the wash water in the tub; An induction heater provided in the tub and generating a magnetic field to heat the drum; In order to heat the wash water and the laundry, the driving of the induction heater is controlled, and the rotation of the drum is controlled to repeat the acceleration of the drum at the filtration motion speed and then the deceleration at the tumbling motion speed, and in the tub Washing apparatus including a control unit for controlling the driving of the circulation pump to circulate the wash water may be provided.
- the circulating water is injected into the drum and supplied to the laundry.
- much of the washing water (circulated water) supplied to the laundry is absorbed by the laundry.
- much of the wash water (circulating water) supplied to the laundry during the filtration motion is released from the laundry. Therefore, washing water in which detergent is dissolved may be repeatedly absorbed and separated from laundry, thereby increasing washing power.
- the circulating water is supplied into the drum and flows into the tub through the drum inner circumferential surface absorbed by the laundry or heated. Thus, the wash water can be heated repeatedly.
- the circulation pump when the circulation pump is driven using a small amount of washing water, there is a fear that the amount of washing water is not sufficient. If the amount of wash water is not enough, the circulation pump may malfunction or may cause noise. Since the filtration motion is performed periodically and repeatedly, recovery of the circulating water can be promoted. Therefore, even when a small amount of washing water is used, the circulation pump can be smoothly driven.
- Tumbling motion may be replaced with swing motion.
- the swing motion is a motion of repeatedly rotating left and right and lower than the RPM of the tumbling motion.
- the tumbling motion (or swing motion) and the filtration motion may be repeatedly performed in one cycle.
- the filtration motion is continuously performed after the tumbling motion, and one such cycle may be performed plural times in succession. After a plurality of cycles are continuously performed, a plurality of cycles may be continuously performed again after the drum rotation stops for a predetermined period.
- one cycle may be performed again after the drum rotation is stopped for a predetermined period after one cycle is performed.
- This cycle can be performed multiple times.
- a washing apparatus and a control method thereof capable of heating a drum through an induction module and heating wash water through a heated drum.
- the heating section of the induction module to be substantially the same as the rotation section of the drum or included in the rotation section of the drum, to effectively prevent overheating of the drum to provide a safe washing apparatus and control method thereof can do.
- a washing apparatus and a control method thereof capable of preventing overheating of the drum in advance through a drying temperature sensor capable of sensing the temperature of the drum.
- the drive of the drum and the drive of the induction module is controlled to interlock with each other, in particular by the drive of the circulation pump to prevent the overheating of the drum by the induction module and its control method Can be provided.
- the drying temperature sensor for detecting the overheating of the drum forcibly stop the driving of the induction module when the drum overheating can provide a safe washing apparatus and a control method thereof.
- the induction module is forcibly stopped, it is possible to provide a washing apparatus and a control method thereof in which drum overheating can be quickly resolved by maintaining driving of a predetermined drum and / or a circulation pump.
- the drying temperature sensor having a different installation location, different sensing targets and different sensing time and the washing water temperature sensor for detecting the temperature of the wash water, to prevent overheating by the induction module It can provide a safe washing apparatus and its control method.
- FIG 1 shows the operation of the drum drive and the circulation pump drive in the washing process in the conventional washing machine
- FIG. 2 shows the appearance of the washing apparatus according to an embodiment of the present invention
- FIG. 3 shows a cross section of the washing apparatus according to an embodiment of the present invention
- FIG. 4 is a view illustrating a state in which an induction module is separated from a tub in a washing apparatus according to an embodiment of the present invention.
- FIG. 5 shows a control configuration of a washing apparatus according to an embodiment of the present invention
- Figure 6 shows the operation of the control configuration in the water supply step and the bubbling step in the washing machine according to an embodiment of the present invention
- FIG. 13 shows correlations between washing performance, quantity, washing temperature, washing water circulation and drum driving in a conventional washing machine.
- FIG. 14 is a view illustrating a correlation between washing performance, quantity, washing temperature, washing water circulation, and drum driving in a washing apparatus according to an embodiment of the present invention.
- 15 is a view illustrating a relationship between washing degree, washing time, and energy consumption in a washing apparatus according to an embodiment of the present invention.
- FIG. 16 shows the interaction diagram between wash water temperature and detergent concentration.
- FIGS. 1 to 3 a washing apparatus equipped with an induction heater according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.
- FIG. 1 is a perspective view showing the outside of a washing machine according to an embodiment of the present invention.
- 2 is a cross-sectional view showing the inside of a washing machine according to an embodiment of the present invention.
- 3 is a conceptual view in which a separate induction heater module is mounted on a tub.
- the washing machine may include a cabinet 10, a tub 20, a drum 30, and an induction heater 70 provided to heat the drum 30.
- the tub 20 is provided in the cabinet 10 to accommodate the drum 30.
- the drum 30 is rotatably provided in the tub 20 and accommodates laundry.
- An opening is provided in front of the drum 30, and laundry is introduced into the drum 30.
- a through hole (30h) is formed on the circumferential surface of the drum (30) so that air and wash water communicate between the tub (20) and the drum (30).
- the induction heater or IH module 70 is provided to generate an electromagnetic field to heat the drum 30.
- the induction heater 70 may be provided on an outer circumferential surface of the tub 20.
- a tub 20 having an opening in front and having an opening therein, a drum 30 made of a conductor rotatably provided in the accommodation space to accommodate laundry, and a drum 30 provided on an outer circumferential surface of the tub 20. ) May include an induction heater 70 for heating the electromagnetic field.
- the tub 20 and the drum 30 may be formed in a cylindrical shape. Therefore, the inner circumferential surface and the outer circumferential surface of the tub 20 and the drum 30 may be substantially cylindrical.
- 3 illustrates a washing machine in which the drum 30 is rotated based on a rotating shaft parallel to the ground. Unlike shown, the drum 30 and the tub 20 may have a tilting form inclined backward.
- the washing apparatus further includes a driving unit 40 provided to rotate the drum 30 in the tub 20.
- the drive unit 40 includes a motor 41, and the motor 41 includes a stator and a rotor.
- the rotor is connected to the rotary shaft 42, the rotary shaft 42 may be connected to the drum 30 to rotate the drum 30 in the tub 20.
- the drive unit 40 may include a spider 43.
- the spider 43 may be referred to as a configuration for connecting the drum 30 and the rotary shaft 42 to uniformly and stably transfer the rotational force of the rotary shaft 42 to the drum 30.
- the spider 43 is coupled to the drum 30 in a form at least partially inserted into the rear wall of the drum 30.
- the rear wall of the drum 30 is formed in a recessed shape into the drum 30.
- the spider 43 may be coupled in a form inserted into the drum 30 further from the rotation center portion of the drum 30.
- the lifter 50 is provided inside the drum 30.
- the lifter 50 may be provided in plural along the circumferential direction of the drum 30.
- the lifter 50 performs the function of stirring the laundry. In one example, as the drum 30 rotates, the lifter 50 raises the laundry to the top.
- the laundry moved upwards is separated from the lifter 50 by gravity and falls down.
- the laundry may be performed with the impact force caused by the drop of the laundry.
- the agitation of the laundry can enhance the drying efficiency.
- the laundry may be evenly distributed back and forth within the drum 30. Therefore, the lifter 50 may be formed extending from the rear end of the drum 30 to the front end.
- the induction heater 70 is a device for heating the drum 30.
- the induction heater 70 receives a current to generate a magnetic field to generate an eddy current in the drum 30, and a heater cover to accommodate the coil 71. And 72. Since the structure of the induction heater 70 and the principle that the induction heater 70 heats the drum 30 have been described in detail in the above patent, a duplicate description thereof will be omitted.
- the coil 71 may heat the drum 30 to increase the temperature inside the drum 30 as well as the drum 30 itself. Therefore, the washing water contacting the drum 30 may be heated by heating the drum 30, and the laundry contacting the inner circumferential surface of the drum 30 may be heated. Of course, by increasing the temperature inside the drum 30, laundry that does not contact the inner peripheral surface of the drum 30 can also be heated.
- the washing water, the laundry and the ambient temperature inside the drum 30 be increased to enhance the washing effect, but also the drying temperature of the laundry, the drum 30 and the drum 30 can be increased for drying the laundry. Can be increased.
- the induction heater 70 is provided above the tub 20, but the induction heater 70 is provided on at least one of the upper side, the lower side, and both sides of the tub 20. It does not exclude that. However, the induction heater 70 may be installed at a position higher than the maximum level that the wash water stored in the tub 20 can have.
- the induction heater 70 is provided on one side of the outer peripheral surface of the tub 20, and the coil 71 has at least one along the surface of the induction heater 70 adjacent to the tub 20 in the induction heater 70. It can be provided wound more than once.
- the induction heater 70 may generate an eddy current in the drum 30 by radiating an induction magnetic field directly to the outer circumferential surface of the drum 30. As a result, the induction heater 70 may directly heat the outer circumferential surface of the drum 30. Can be.
- a control unit 90 (see FIG. 5) for controlling the output of the induction heater 70 is provided.
- the on / off and output of the induction heater 70 can be controlled by the control of the controller 90.
- the induction heater 70 may be connected to an external power supply by a wire and may be supplied with power, or may be connected to a control unit 90 that controls the operation of the washing machine. That is, the induction heater 70 may be supplied with power in any place as long as it can supply power to the internal coil 71.
- the motor 41 of the driving unit 40 may rotate to rotate the drum 30, which may be performed by the control of the controller 90.
- the drum 30 is rotated, the induction heater 70 may be operated.
- the speed at which the motor 41 of the driving unit 40 rotates the drum 30 may be any speed.
- the drum 30 has an outer circumferential surface. Can evenly heat.
- the drum 30 by driving the induction heater 70, the drum 30 can be heated to 120 degrees Celsius or more in a very fast time. If the induction heater 70 is driven with the drum 30 stationary or at a very slow rotational speed, certain portions of the drum 30 may overheat very quickly. This is because heat transfer is not sufficiently performed from the heated drum 30 to the laundry.
- the correlation between the rotational speed of the drum 30 and the drive of the induction heater 70 is very important. And, it is more preferable to rotate the drum 30 and drive the induction heater 70 than to drive the induction heater 70 and rotate the drum 30.
- the washing machine according to the embodiment of the present invention can save the washing water because the laundry does not need to be completely submerged in the washing water in order to soak the laundry. This is because a portion of the drum 30 in contact with the wash water is continuously changed as the drum 30 rotates. That is, because the heated portion is in contact with the wash water to heat the wash water and again separated from the wash water and heated.
- the washing machine according to the embodiment of the present invention can increase the temperature of the laundry and the inner space in which the laundry is accommodated. This is because the drum 30 in contact with the laundry is heated. Therefore, the laundry can be heated efficiently without the laundry being submerged in the wash water.
- the laundry does not need to be immersed in the wash water for sterilization, thus saving the wash water.
- the laundry may be supplied with heat through the drum 30 instead of being supplied with heat through the washing water.
- the inside of the drum 30 may be changed to a high temperature and high humidity environment through steam or steam generated as the wet laundry is heated, thereby performing a sterilization effect more effectively.
- the boiled laundry in which the wash water is immersed in the heated wash water can be replaced by a method using much less amount of wash water. That is, it is not necessary to heat the washing water having a high specific heat, it can save energy.
- the amount of wash water supplied to increase the temperature of the laundry can be reduced, thus reducing the supply time of the wash water. This is because the amount and time of additionally supplying the wash water after the filling is reduced. Therefore, the washing time can be further reduced.
- the water level of the wash water containing the detergent may be lower than the lowest level of the drum (30).
- the supply of wash water through the circulation pump 80 may be made through the control unit 90.
- the configuration of a heater provided under the tub 20 to heat the wash water can be omitted, thereby simplifying the construction and increasing the volume of the tub 20. It can be seen that.
- the heater inside the general tub 20 has a limit in increasing the heating surface area. That is, the area where the surface area of the heater is in contact with air or laundry is relatively small. However, on the contrary, the surface area of the drum 30 itself or the surface area of the drum 30 circumferential surface itself is very large. Therefore, since the heating area becomes large, an immediate heating effect can be obtained.
- the heating mechanism through the tub 20 heater at the time of washing the tub 20 heater heats the wash water and the heated wash water increases the drum 30, the laundry and the ambient temperature inside the drum 30. Therefore, it takes a lot of time to be heated to a high temperature as a whole.
- the drum 30 circumferential surface itself has a relatively large area in contact with the washing water, the laundry, and the air inside the drum 30.
- the heated drum 30 directly heats the wash water, the laundry and the air inside the drum 30. Therefore, the induction heater 70 as a heating source during washing can be said to be very effective compared to the tub heater.
- washing time can be increased by the time required to heat the washing water.
- the drum must rotate when heating the wash water using the induction heater (70). This is because when the drum is not rotated, only a part of the drum is heated so that the washing water is not evenly heated and only a part of the drum is heated, which may cause damage or failure of the product.
- the detergent dissolution according to the flow of the washing water can be made more efficient, and the time taken to heat the washing water due to the longer time for the circumferential surface of the heated drum to contact the washing water. Can shorten.
- the control unit 90 is provided as a main processor to control the operation of the washing machine. Through such a control unit, the operation of various control structures described later can be controlled.
- the motor 41 is provided to drive the drum. That is, the motor 41 is provided to rotate the drum.
- the rotational force of the motor 41 may be transmitted directly to the drum or indirectly. Recently, a direct type motor in which the rotational force of the motor 41 is directly transmitted to the drum is generally used.
- the driving pattern of the drum may vary according to the driving pattern of the motor 41. Accordingly, the controller 90 controls the driving of the motor 41 to generate various driving such as tumbling driving of the drum, filtration driving, and spin driving.
- the driving of the drum may be referred to as the motion of the drum.
- the actual running time of the motor within a certain time interval may be referred to as a running rate. That is, if the motor is actually driven only 50 seconds within the 100 seconds section, the actual running rate of the motor may be 50%. Since the motor drives the drum, the actual running rate of the motor can be said to be approximately equal to the running rate of the drum. In this embodiment, the actual running rate of the motor and the drum running rate may be understood to be the same unless otherwise described.
- the tumbling drive of the drum is a drive that causes the fabric inside the drum to lift and then fall as the drum rotates at approximately 40 to 46 RPM. It can be said that driving or washing is performed by the mechanical force through the dropping of the cloth and the friction with the drum. Since the foam is agitated in the drum, it can be referred to as a driving that is generally used.
- the filtration drive of the drum may be referred to as driving in which the drum and the carriage rotate integrally by being in close contact with the inner circumferential surface of the carriage as the drum rotates at approximately 100 RPM. At this time, the laundry cloth is unfolded on the inner peripheral surface of the drum and the separation of the washing water from the cloth is generated.
- the spin drive of the drum may be a drive for centrifugal dehydration of the washing water in the cloth as the drum rotates at about 800 RPM or more. By very large centrifugal force, the spin drive is performed in the final process of washing so that all washing can be finished.
- the rotational RPM of the drum increases in the order of spin driving, filtration driving and tumbling driving.
- Spin driving is a drive for continuously rotating the drum in one direction
- tumbling drive and spin drive is a drive that repeats the rotation and stop in the forward and reverse directions.
- the washing machine For washing, the wash water must be supplied from the outside of the washing machine into the tub.
- the washing machine is provided with a water supply valve 23.
- the water supply valve is connected to an external water supply, and the washing water is supplied into the washing machine when the water supply valve is operated.
- a pre-valve 24 may be provided to be connected to a cold water valve 25 and a boiler for supplying cold water of an external water supply source and to supply water other than cold water, such as hot water.
- washing water temperature is set to room temperature (cold or cold) during washing, heating of the washing water is not required. Therefore, in this case, the water supply may be performed only by the cold water valve 25.
- the temperature of the wash water is set to a constant temperature (25 degrees Celsius, 40 degrees Celsius, etc.) at room temperature, washing water may be supplied through the pre-valve 24 and the cold water valve 25.
- a constant temperature 25 degrees Celsius, 40 degrees Celsius, etc.
- the pre-valve 24 and the cold water valve 25 may be a valve for supplying the same cold water.
- the water supply through the pre-valve 24 is a case of water supply to the tub through the drum
- the water supply through the cold water valve 25 may be a case of water supply to the tub without passing through the drum. Of course, this may be the opposite.
- the pre-valve 24 may be a water supply valve for supplying the wash water to the tub through the detergent box
- the cold water valve 25 is a water supply valve for supplying the wash water directly into the tub without passing through the detergent box. Can be. Of course, this may be the opposite.
- a plurality of water supply valves may be provided according to the temperature of the wash water and the water supply path of the wash water.
- the water level sensor 26 may be provided to sense the level of the wash water supplied into the tub. That is, it can be said to be a sensor for controlling the water level so that an appropriate amount of washing water is supplied.
- the water level sensor 26 is frequently used a frequency sensor for sensing the water level through the frequency.
- the water level is sensed using the difference in the frequency sensed according to the water level.
- the water level sensor 26 senses the water level so that water supply is performed between the air level and the maximum water level.
- the maximum water level is a level for protecting the heater, such that the lower part of the drum is submerged in the wash water. It is common to supply water until the water level of the wash water after the sachet has absorbed the wash water full is at the heater protection level.
- the heater protection level is destroyed. That is, the heater protection level can be ignored. Therefore, the maximum water level at which water supply is performed may be referred to as the water supply level, not the heater protection level.
- the water supply level in this embodiment may be referred to as the water level in which the lower portion of the drum is immersed in the wash water.
- the air level in the frequency sensor is approximately 25.5 Khz and the heater protection level is approximately 24.7 Khz.
- the value of a particular frequency may vary depending on the size of the washing machine, the model of the frequency sensor and the external environment. However, the higher the frequency in the frequency sensor, the lower the water level will be the same.
- the controller 90 controls the operation of the water supply valve 23 based on the level value detected by the level sensor 26.
- the induction module (IH module) 70 may be referred to as a heater that heats the drum by induction. Since the induction module has been described in detail in the prior patent, a redundant description thereof will be omitted.
- the washing water is heated when the drum is heated by the induction module.
- the cloth in contact with the drum as well as the wash water is directly heated.
- the cloth absorbing the wash water is directly heated to increase the heating effect. And since heat is less diffused to the surroundings, the heating efficiency is higher.
- heating through the induction module may be performed through the washing water temperature sensor 28. That is, heating may be ended when the temperature of the wash water reaches a set temperature.
- the drum can be heated to about 160 degrees Celsius in a short time.
- the outer circumferential surface temperature of the drum may rise to 160 degrees Celsius in about three seconds. Therefore, the heat in the drum must be transferred to the wash water and the fabric to prevent overheating of the drum or overheating of the induction module.
- a drying temperature sensor 29 may be provided. Drying temperature sensor 29 may be provided to directly or indirectly sense the temperature of the outer peripheral surface of the drum. When it is determined that the drum is overheated by the drying temperature sensor 29, the controller 90 stops the operation of the induction module.
- the wash water temperature sensor 28 may be mounted under the tub to sense the temperature of the wash water.
- the drying temperature sensor may be mounted on the top of the tub to sense the temperature of the drum outer circumferential surface. Therefore, it is preferable that both the installation position and a sensing object differ.
- the wash water temperature sensor 28 may directly sense the temperature of the wash water.
- the drying temperature sensor 29 may indirectly sense the temperature of the drum by being in contact with the rotating drum. Therefore, it is preferable that both sensing mechanisms or methods are different.
- the wash water temperature sensor 28 may be provided to sense the temperature of the wash water when the drum is stopped.
- the induction module may be controlled to not operate when the target temperature is reached.
- the drying temperature sensor 29 may be provided to sense the temperature of the drum when the drum rotates. In particular, it can be provided to sense the temperature during the rotation of the drum and the operation of the induction module. Therefore, it is preferable that both of the sensing time points are different.
- One embodiment of the present invention can provide a washing apparatus and a control method thereof capable of stably driving an induction module.
- the drum drive and the induction module drive may be interlocked. Details of this embodiment will be described later.
- Washing apparatus and control method it is possible to perform the effective washing with the amount of wash water significantly less than the amount of wash water required during the conventional washing. That is, effective washing can be performed only by the amount of the wash water up to a level much lower than the heater protection level.
- the sachets In order for washing to be effective, the sachets must be supplied with sufficient detergent water (washing water in which detergent is dissolved). That is, it is preferable that washing is performed in a state in which the sachet can absorb and discharge the detergent water at the same time. If a portion of the fabric is not wet, it will be clear that this portion will not be washed. For this reason, it can be said that washing is performed at the heater protection level in the related art.
- the heater protection level is not required in this embodiment, and washing can be performed at a level much lower than the heater protection level. That is, washing may be performed in a state in which the bag is not immersed in the wash water.
- the circulation pump 80 for supplying or resupplying the detergent water to the fabric is provided.
- the circulation pump 80 may be referred to as a configuration in which a part of the washing water is removed from the lower portion of the tub and then pumped to inject the washing water into the captivity from the upper drum.
- the washing effect may be enhanced by the injection pressure of the washing water, and the washing water (detergent water) is supplied to the cloth again so that the cloth is always sufficiently wet.
- effective laundering can be performed even if the fabric is not submerged in the wash water.
- Washing through the washing apparatus may be performed through the initial water supply, the filling core, heating and the present washing step. After washing, rinsing and dehydration may be performed to terminate washing. The entire washing process or washing course is automatically performed in the order of washing stroke, rinsing stroke and dehydration stroke and ends.
- Additional watering may be performed at the filling stage. This embodiment may achieve the above object, in particular when heating is performed in the washing stroke.
- Features in the washing stroke according to an embodiment of the present invention described below may be equally applicable to a rinsing stroke unless contradictory or exclusive.
- FIG. 7 shows the overall flow of the washing stroke
- FIG. 6 shows the control arrangement (water supply valve, motor for driving the drum, circulation pump and water level sensor) in the washing stroke, in particular in the water supply and filling core sections. It shows the operation of the field.
- the quantity detection S10 When the washing is started, first, while the drum is driven, the quantity detection S10 may be performed. The larger the detected quantity, the greater the amount of wash water may be required, and the longer the washing time may be. When the amount of the detected amount is detected, an expected end time of washing may be displayed according to the detected amount of quantity.
- the water supply step S20 may be performed.
- the water supply step S20 may be referred to as initial water supply.
- the drum can be tumbling drive, the RPM of this time may be approximately 46RPM.
- the motor is turned on, the RPM gradually increases to drive while maintaining the set RPM of 46 RPM, and when the motor is turned off, the RPM gradually decreases to stop the drum.
- the drum rotates for a short time after the motor is turned off. After the drum stops rotating after the motor is turned off, the motor is turned on again after a predetermined time elapses. At this time, the drum can be rotated in the opposite direction.
- the water supply valve 23 may be intermittently supplied with repeated on / off, and may be supplied with water for a certain time.
- water supply may be performed a plurality of times.
- the on / off pattern or the on time of the feed valve 23 may be different in each feed cycle.
- FIG. 2 an example in which four tumbling drives and four water supply cycles are performed is illustrated. The amount of tumbling drive and the number of feedwater cycles can vary depending on the quantity.
- the water supply S21 by the pre-valve 24 and the water supply S22 by the cold water valve 25 may be sequentially performed. That is, free water supply (S21), cold water supply (S22), free water supply (S23) and cold water supply (S24) may be performed.
- the final water supply in the water supply step (S20) may be cold water water supply (S24).
- the water level is increased. That is, the sensed water level frequency is reduced.
- 25.5 Khz in FIG. 2 is an example of the airborne level
- 25.4 Khz is a water level higher than the airborne level and the minimum water level required in this embodiment (for example, a level of about 1 liter before and after, in this embodiment, it is called a circulating water level).
- 24.7 Khz is an example of a conventional heater protection level or the bottom of the drum submerged in some wash water.
- the initial water supply cycle may be performed so that the tumbling driving section and the water supply section overlap a large part. In other words, by directly supplying the detergent water to the cloth can be reduced in the future.
- the target water level may be a level similar to or lower than the conventional heater protection level.
- the target water level may be referred to as a water level higher than the circulation level.
- the target water level can be set equal to the heater protection level.
- the water level may be sensed in the water supply process, which may be to determine the end time of the water supply process.
- the packing core step S30 is performed. In the filling step, it can be said that the fabric sufficiently absorbs the washing water.
- the water level at the end of the water supply step S20 may be a water level that is not substantially submerged in the carriage washing water. Part of the satiety in contact with the bottom of the drum may be a water level submerged in the wash water.
- the filling step (S30) can be started while driving the drum rather than additional water supply. Therefore, it is preferable that the circulation pump is driven together with the drum drive for the packing core.
- the filling step S30 is started by turning on the motor and the circulation pump for driving the drum.
- the water level is higher than the circulation water level. Therefore, it can be said that a sufficient amount of washing water required for circulation is stored in the tub.
- the drum drive may comprise a tumbling drive.
- the drum drive may include a filtration drive.
- the tumbling driving can be performed for a predetermined time from the motor on, and the filtration driving can be performed continuously. That is, while the drum rotates at 46 RPM for the tumbling drive, the RPM can be raised and maintained at about 100 RPM for the filtration drive.
- the motor may be turned off after a predetermined time elapses.
- the driving of the drum which continuously performs the filtration driving in such a tumbling drive may be referred to as a circular drive or a circular motion of the drum for convenience. That is, the circular driving of the drum may be referred to as driving in which filtration is continuously performed after tumbling.
- the circulation pump Since the circulation pump is driven in the initial tumbling drive of the circulation drive, the water level gradually decreases. This is because the fabric absorbs the washing water sprayed on the fabric by driving the circulation pump. As the water level gradually decreases, the amount of wash water required to drive the circulation pump may not be stored in the tub. Thus, in the late filtration operation of the circulating drive, a part of the wash water sucked around the drum or excessively absorbed by the cloth is dewatered. By this filtration drive it is possible to ensure the wash water for the circulation pump drive.
- wash water is absorbed by the cloth by the circulation drive of the first drum and the circulation pump drive (S31) to wet the cloth. Washing water absorbed by the cloth in the proper amount is not dehydrated by centrifugal force because the RPM of the filtration operation is relatively low.
- driving of the first drum and the circulation pump is performed (S31), and driving of the drum and the circulation pump is terminated (S32) by turning off the motor and the circulation pump.
- the motor and the circulation pump can be synchronized. However, when the motor is off, the drum rotates for a short time to stop. It can be said to be due to inertia. If the drum is completely stopped after the motor off, the water level is measured (S33). That is, to accurately measure the water level in the calm water surface. After running the first drum and circulation pump, the water level will be approximately airborne.
- the first additional water supply may be performed.
- the additional water supply may be water supply through the water supply valve 23 described above. That is, the water supply step S24 through the valve that was turned on at the end of the water supply step S20, for example, the cold water valve S25 may be performed again.
- the additional water supply may be represented as S34 to distinguish it from the water supply S24 at the buckle core.
- the additional water supply S34 may be performed up to the circulation level. That is, water supply may be performed until the water level sensor 26 senses 25.4 Khz, for example.
- the driving of the drum and the circulation pump is performed in the same manner as the first round, and when water level sensing is required, the additional water supply S33 may be performed again. Of course, the driving of the drum and the circulation pump can be restarted.
- the drum and circulation pump driving S31, the motor and circulation pump off S32, the water level sensing S33 and the additional water supply S34 may be continuously repeated. This repetition may be performed until the water level detects the circulating water level in the water level sensing S33 and no longer requires additional water supply. That is, the additional water supply is repeatedly performed until the circulation level, and when the level is no longer reduced and maintained at the circulation level, the filling step ends.
- the filling step (S30) is terminated (S35) after the water level is detected as the circulating water level after the circular drive. That is, despite spraying the washing water to the fabric through the circulation pump, the step of filling (S30) is carried out until the point at which the fabric no longer absorbs the washing water (at the time when the absorption and discharge of the washing water is balanced in the cloth). It can be said.
- the circulation level is about 1 liter of wash water supplied to the tub. That is, the circulating water level (eg 25.4 Khz) may exceed the airborne level (eg 25.5 Khz) and be an amount of wash water between 1 liter.
- the amount of washing water of 1.5 liters can be said to be the amount of washing water when driving the circulation pump during the normal tumbling operation.
- the drum performs the circulation drive when the circulation pump is driven. Since the filtration drive is implemented in the circulation drive, the collection of the wash water to the bottom of the tub is facilitated, so that the circulation pump can be smoothly driven even with a relatively small amount of the wash water.
- Circulating water level means that the bottom of the drum is about 1 liter less wash water than the water level reaching the wash water and about 2 to 3 liters less wash water than the heater protection level.
- the circulating water level can be referred to as the water level when approximately 1 liter of washing water is added at the air supply level.
- the amount of washing water to the heater protection level after the filling is inevitably required.
- only the amount of the washing water up to the circulation level after the filling is required. That is, it can be seen that the amount of residual wash water in the tub after the core is significantly smaller in this embodiment. Rather, the subsequent wash water heating and main wash can be effectively performed even if the amount of wash water (less than 1 liter) smaller than the amount of wash water filled in the circulation pump and circulation passage (approximately 1.5 liters) remains after the filling. Able to know.
- washing may be performed through high concentration detergent water. If a large amount of washing water is required, the amount of detergent is inevitably increased for the optimal concentration of detergent water. In many cases washing will be performed at concentrations lower than the required concentration. However, in this embodiment, since the amount of wash water can be reduced by approximately 2 to 3 liters, washing is possible through a very high concentration of detergent water. This, of course, is bound to enhance washing performance. Assuming the washing machine is used approximately 3-4 times a week, the amount of water saved will be significant.
- the heating efficiency mentioned later can be improved.
- a lot of heat energy is consumed for washing water heating. This is because the heat capacity of water is relatively large. Therefore, the smaller the amount of wash water to be heated, the more effective energy saving can be performed. That is, the amount of energy required to heat up to the same temperature is reduced, it can be heated to a higher temperature through the same amount of energy.
- the heating step S40 and the main washing step S50 may be performed after the filling step S30.
- the squeeze motion can be performed mainly in the core step (S30).
- the squeeze motion after the motor 41 rotates the drum 30 so that the laundry does not come into close contact with the inner circumferential surface of the drum 30 by centrifugal force, the squeeze motion lowers the rotation speed of the drum 930 to remove the laundry from the inner circumferential surface of the drum 30.
- the separating operation may be referred to as a repeating motion. That is, it may be referred to as a motion of decelerating the drum to perform the tumble motion after accelerating the drum to perform the filtration motion.
- the washing water When the squeeze motion is performed, the washing water may be separated from the laundry by centrifugal force while performing the filtration motion, and the washing water may be sufficiently supplied to the laundry while performing the tumble motion.
- the filtration motion may be referred to to secure sufficient washing water for driving the circulation pump, and the tumble motion may be referred to as supplying sufficient washing water to the laundry through the driving of the circulation pump.
- the circulation pump can be driven throughout the squeeze motion. During the filtration motion, more washing water is removed from the laundry than washing water supplied to the laundry, and conversely, during the tumble motion, the washing water supplied to the laundry is more than the washing water leaving the laundry.
- Figure 8 shows the driving state and the water level change of the induction module of the motor, the circulation pump in the heating step.
- 9 to 11 show the state of the drum stop, the tumbling drive and the filtration drive, respectively.
- the heater mounting portion 21 of the tub 20 may not be formed, and the heater 22, that is, the sheath heater, may not be mounted.
- the conventional tub may be used without changing the design, and the heater 22 may also be used since it may be used outside the induction heating section.
- the heater 22 may be shown to clarify that the heater protection level in this embodiment can be destroyed or ignored.
- the washing water heating in the present embodiment is performed using an induction heater, and may be provided with a sheath heater provided below the tub as long as it does not contradict. That is, the washing apparatus according to the present embodiment may include both an induction heater and a sheath heater and may be provided with only an induction heater. As in the related art, a mode of heating the wash water using the sheath heater may be used, and a mode of heating the wash water using the induction heater may be used without the sheath heater operating.
- Watering is completed in the stepping step (S30) and the finish is completed. That is, no further watering may be performed and the fabric may be said to have absorbed the wash water to the maximum.
- the heating step S40 may be performed to perform washing at a high temperature.
- the drum is heated through the induction module (IH module) 70. Therefore, it is preferable that the on of the induction module is always performed while the drum is rotating.
- the induction module 70 is turned off when the drum is stopped. It is preferable that the circulation pump is not driven either.
- the induction module 70 may be provided at the top of the tub, and the fabric is not placed on the top of the drum facing the induction module 70. Thus, certain parts of the drum may be overheated while the drum 30 is stopped. This is because it cannot transfer heat to fabric or wash water. Therefore, it is preferable that the induction module 70 is always turned off when the drum is stopped.
- the drum is driven to uniformly heat the wash water and the cloth.
- the driving of the drum may include a tumbling drive and a filtration drive.
- the driving of the drum may include a tumbling drive and a circular drive. The tumbling drive and the circular drive may be performed sequentially or alternately.
- the fabric may be dropped by gravity after being lifted by the lifter 30, and the circulation water may be injected into the drum.
- the induction module may be driven to heat the drum.
- the cloth when the filtration drive or the filtration drive in the circulation drive, as the drum rotates, the cloth may be in close contact with the drum inner circumferential surface and rotate integrally with the drum. This is because the centrifugal force due to the rotation of the drum is greater than the gravity. At this time, the circulating water may be injected into the drum and the induction module may be driven to heat the drum.
- the heater protection level is destroyed throughout the heating section so that the water level will always be lower than the lowermost lower end of the drum, that is, below the circulation level.
- the induction module 70 may operate and the circulation pump 80 may operate. Washing water is sprayed on the heated cloth and drum by the operation of the circulation pump 80. Thus, the heat of the heated drum can be effectively transferred to the wash water and the cloth. That is, the driving of the drum, heating and driving of the circulation pump are performed at the same time.
- the section in which the drum is stopped rotating and the circulation pump operating section from the start of the rotation of the drum may be the same. Since the circulation pump can be operated synchronously by turning on the motor, substantially the start of rotation of the drum and the start of operation of the circulation pump can be performed simultaneously. However, even if the motor is turned off, the inertia force causes the drum to stop rotating for a short time. Thus, the circulation pump can be turned off synchronously when the motor is off. Of course, the circulation pump may be turned off when the drum is stopped.
- a section in which the drum starts and stops rotating and a section in which the induction module is turned on and off may be the same. However, it is preferable that after the start of rotation of the drum, the induction module is started on, and the induction module is turned off before the rotation of the drum is stopped.
- the driving section of the drum may include or be the same as the driving section of the circulation pump and the driving section of the induction module.
- the rotational speed of the drum increases while maintaining the target speed. If the drum's rotational speed is low, some areas of the drum may heat up rapidly. Therefore, when the rotational speed of the drum is higher than a certain speed after the motor is turned on, it is preferable to let the induction module turn on. This prevents overheating of the drum.
- the induction module is turned off when the rotational speed of the drum is lower than a predetermined speed after the motor is turned off. It is not advisable to turn off the induction module after the motor is turned off. Since the drum rotates due to inertial force, it is desirable to heat the entire inertia rotation section to reduce the overall heating time. And it is desirable to turn off the induction module only when the drum lowers to a certain speed before the drum stops completely.
- the drum rotation speed at which the induction module is turned on when the drum rotation is accelerated and the drum rotation speed at which the induction module is turned off when the drum rotation is decelerated may be the same. It may be about 15 RPM. That is, it may have the same threshold RPM. Lowering this critical RPM can improve heating efficiency, while overheating is a concern. Conversely, increasing the critical RPM reduces the heating efficiency but further reduces overheating concerns. Accordingly, the operation of the induction module can be controlled by setting the RPM corresponding to 1/3 of the tumbling RPM as the threshold RPM.
- the on / off timing of the motor and the on / off timing of the induction module may be different.
- the heater protection level is meaningless as described above in the heating step S40. As shown in FIG. 8, it can be seen that effective heating is possible even if the water level in the heating section is changed within the airborne level and the circular water level.
- the illustrated change in water level is an example and may vary in other aspects within the air and circulation levels. If the heating target temperature of the wash water is less than approximately 60 degrees Celsius, the amount of water evaporated is not relatively high. This is because evaporation and condensation occur simultaneously.
- overheating prevention in the washing apparatus may be implemented through driving control of the induction module regardless of the amount of washing water. Therefore, in the heating step S40, the actual running rate of the motor can be greatly increased. For example, it can be increased to 80% or more to approximately 90%. In the conventional washing machine, the actual running rate in the heating section is about 13%, which is very high.
- the drum may perform a tumbling drive and a circular drive. After the tumbling drive may be paused and the cyclic drive may be performed. This drive pattern may be repeated. That is, the heating step S40 may be performed while the driving pattern is repeated until the target temperature is sensed by the wash water temperature sensor.
- the water level in the heating step S40 will vary between the airborne level and the circulating water level.
- the tumbling drive and the circular drive may be repeated. Therefore, if the circulation pump can be driven even with a relatively small amount of washing water, it is possible to prevent overheating of the fabric and to heat the fabric effectively.
- the tumbling time is longer than the filtration time in the cyclic drive.
- the filtration driving should be performed for a proper time. As the filtration run time increases, there is less concern about lack of wash water for circulation. However, the time to be in close contact with the carriage drum may increase and the carriage may overheat.
- the tumbling time and the filtration time should be appropriately distributed.
- 8 shows repeating the tumbling drive 26 seconds, the pause 4 seconds and the circular drive 38 seconds as an example. Also shown is an tumbling drive of 26 seconds and a filtration drive of 12 seconds in a circular drive as an example.
- the tumbling time is larger than the filtration time, and specifically, it is preferable to be twice or more.
- the tumbling drive and the cyclic drive are preferably performed alternately.
- squeeze motion or driving may be performed.
- This is a drive in which the drum repeats acceleration and deceleration. That is, after the laundry is in close contact with the drum and rotated integrally with the drum, the laundry may be decelerated to separate the drum and the laundry. That is, by periodically accelerating and decelerating the rotational speed of the drum, the laundry may be repeatedly performed to discharge and absorb the wash water.
- the high concentration detergent water is supplied to the laundry and then discharged through the laundry, it is possible to further improve the chemical washing performance through the high concentration detergent.
- the heating step includes a section in which the laundry rotates integrally with the drum (for example, a filtration motion section) and a section in which the laundry is separated from the drum after the rise and repeats the drop (for example, a tumbling motion section). desirable.
- the drum When the water supply is finished, the drum may be heated by driving the induction module.
- the cloth received inside the drum may be heated by the heated drum.
- the induction module is opposed only to a part of the outer peripheral surface of the drum. Therefore, when the induction module is driven while the drum is stopped, only a certain part of the drum can be heated. In particular, when the induction module is opposed to the top of the drum, heat transfer from the heated drum to the fabric or wash water is difficult. Therefore, in the present embodiment, the driving of the drum and the driving of the induction module can basically be linked. In particular, the driving section of the drum may include or be the same as the driving section of the induction module.
- the drum accelerates when the motor is turned on and starts driving, and decelerates and stops when the motor is turned off. Therefore, the RPM at the start and end of the drive is very low. Therefore, it is desirable to prevent the induction module from being driven in this part.
- the drum accelerates to drive the induction module at approximately 15 RPM.
- the drum may decelerate and cause the induction module to turn off at approximately 15 RPM.
- the induction module can be driven since the drum RPM is expected to increase later, but in the deceleration of the drum, the drum RPM is expected to decrease later. Therefore, it is preferable that the induction module off is synchronized with the off timing of the motor. This is because heating the drum is ultimately for heating the fabric and wash water, not for heating the drum itself.
- Fig. 12 the driving of the circulation pump is not shown. However, the same may be applied to the driving of the circulation pump illustrated and illustrated in FIG. 8.
- the driving section of the circulation pump and the driving section of the induction module substantially the same. This is because the washing water is delivered to the drum and the cloth by the circulation pump. The lower temperature wash water is supplied to the drum with the highest temperature so that overheating of the drum and fabric can be prevented.
- the above-described drying temperature sensor may be provided.
- the induction module may be forcibly turned off when the drying temperature sensor detects overheating of the drum. That is, even if the induction module is driven in conjunction with the drum drive may be forcibly turned off.
- the drum drive is preferably continued at this time.
- the driving of the induction module may be turned off immediately. And the motor may be on for the remaining 6 seconds. In other words, maintaining the drum drive in the case of forced off of the induction module can effectively transfer heat to the fabric and wash water.
- the driving of the circulation pump may be controlled as well as the drum driving. In other words, the drum and the circulation pump may be controlled to be driven for a predetermined time even if the induction module is forcibly terminated.
- the washing performance (shown in FIG. 13) of the conventional washing machine and the washing performance (shown in FIG. 14) according to the present embodiment will be compared.
- the results of washing performance based on the amount of washing water, washing temperature, circulation pump, and drum driving in heating sections are compared.
- the fourth column of FIG. 13 indicates washing performance and conditions in general washing of a conventional washing machine.
- the washing water is heated to 40 degrees Celsius and the general washing condition is approximately 2-4 liters of the amount of wash water additionally required in addition to the bulking.
- the driving of the circulation pump should be limited or excluded regardless of the driving pattern of the drum.
- the washing performance is 100% and this can be referred to as the standard washing performance.
- the heating section cannot be performed as the amount of the wash water is smaller than the reference condition, and thus the driving of the circulation pump is limited regardless of the driving pattern of the drum. Therefore, the washing performance is inevitably lower than the standard washing performance.
- the circulation pump can be driven regardless of the driving pattern of the drum in the heating section. Since the amount of wash water increases, the washing temperature will be about 34 degrees Celsius, less than 40 degrees Celsius with the same energy. Therefore, since the wash water temperature is low and the detergent concentration is low, the washing performance is inevitably lower than the standard washing performance.
- the fourth column of FIG. 14 indicates washing performance and conditions in general washing of the washing apparatus according to the present embodiment.
- the difference between the washing performance and the reference conditions of the conventional washing machine described above is not large. It is possible to drive the circulation pump in the heating section and increase the motor running rate, but the temperature conditions and detergent concentration conditions are similar.
- the fifth column is similar.
- the amount of wash water is required only a smaller amount than the conventional washing machine, further it can be seen that the heating can be performed in an amount of more than 0 and less than 1 liter.
- These conditions are shown in the third column. It can be said to be an optimum condition in this embodiment.
- the circulation pump may be driven according to the driving pattern of the drum. Therefore, very economical and effective washing is possible, and a higher performance washing effect can be caused.
- the heating temperature can be increased, resulting in washing performance similar to the reference performance.
- the heater protection level concept itself may be ignored or excluded. That is, according to this embodiment it can be seen that the amount of wash water used in the laundry can be significantly reduced.
- the washing apparatus according to the present embodiment does not exclude an embodiment which is larger than the amount of washing water in the above-described embodiment and less than the amount of washing water in the conventional washing apparatus.
- the water level in the heating step may be such that some of the lowest parts of the drum can be submerged in the wash water. That is, the washing apparatus according to the present embodiment includes a washing apparatus in which the circulation pump is driven in the heating step at a lower level than the existing heater protection level.
- 15 is a view showing the washing time and the washing energy in the laundry machine and the conventional washing machine according to an embodiment of the present invention.
- the degree of cleaning indicates the extent to which contaminants of the laundry can be removed. If the degree of cleaning is 100%, it means that all the contaminants of the laundry are removed. On the basis of this cleaning degree in the washing stroke, more efficient washing stroke can be performed through efforts to reduce the energy and washing time required for washing.
- Factors that determine the degree of cleaning are largely the concentration of the detergent and the temperature of the wash water. Under the assumption that all other conditions are the same, the higher the concentration of the detergent, the higher the washing degree, and the lower the concentration of the detergent, the lower the degree of washing. In addition, the higher the temperature of the wash water, the higher the degree of washing, and the lower the temperature of the washing water, the lower the degree of washing.
- the degree of cleaning is determined by the influence of the concentration of the detergent and the temperature of the wash water. It can be seen that washing energy reduction and significant washing time reduction are possible.
- a conventional washing machine can consume 340 minutes of washing time and 890Wh of energy.
- energy consumption of 870 Wh and washing time of 260 minutes may be required to achieve the same degree of cleaning 100%.
- Energy consumption is reduced a little, but washing time can be reduced by as much as 60 minutes. This can be said to be the result when the washing machine according to the present embodiment aims to shorten the washing time.
- the washing apparatus it is possible to shorten the energy.
- the energy consumption is 650 Wh when the same washing time of 340 minutes as in the conventional washing apparatus is taken. This means that it can reduce approximately 240Wh compared to the conventional washing machine.
- 16 is a view showing whether the interaction between the concentration and the temperature factor for the degree of cleaning.
- the detergent concentration affects the cleanliness and the wash water temperature is independent of the cleanliness.
- the concentration of the detergent and the temperature of the wash water means that there is no interaction with respect to the degree of washing.
- the concentration of the detergent by reducing the amount of wash water, and because the amount of wash water is reduced, it is possible to increase the temperature of the wash water more effectively with less energy.
- the detergent concentration effect is greater than the temperature effect on the degree of cleaning (approximately detergent concentration effect 64: temperature effect 36), it is possible to further reduce the energy required for heating to achieve the target degree of cleaning.
- a heating step of heating the washing water and the laundry through the drum by repeatedly supplying the water in the tub to the laundry inside the drum through the circulation pump, and driving the induction heater while rotating the drum
- the drum rotates repeatedly by acceleration and deceleration, preferably the control method of the laundry machine, characterized in that it rotates repeatedly periodically.
- the acceleration and deceleration of the drum is a control method of the washing machine is carried out alternately.
- the drum In the heating step, the drum, the laundry is in close contact with the inner circumferential surface of the drum is accelerated to be integrally rotated, after which the laundry is decelerated to separate from the inner circumferential surface of the drum.
- control method of the washing machine further comprises a main washing step of removing contamination of the laundry through the rotation of the drum.
- the maximum speed of the drum in the heating step is greater than the maximum speed of the drum in the main washing step.
- the washing method of the washing apparatus characterized in that the rotation of the drum is controlled independently of the water level of the wash water in the tub.
- the washing water level in the tub and the driving method of the washing apparatus characterized in that the driving of the induction heater is controlled.
- a drum rotatably provided in the tub to accommodate laundry
- An induction heater provided in the tub and generating a magnetic field to heat the drum
- the driving of the induction heater is controlled, and the rotation of the drum is controlled to repeat the acceleration of the drum at the filtration motion speed and then the deceleration at the tumbling motion speed, and in the tub Washing apparatus including a control unit for controlling the driving of the circulation pump so that the wash water is circulated.
- control unit the washing apparatus characterized in that the control to perform the acceleration and deceleration of the drum periodically.
- the driving of the drum and the driving of the induction module is controlled to interlock
- a section in which the drum is driven includes a section in which the induction module is driven, and the driving of the induction module is excluded from the section in which the drum is driven.
- the driving of the drum is a control method of the washing apparatus, characterized in that it comprises a tumbling drive.
- the on / off time point of the motor for driving the drum and the on / off time point of the induction module are the same.
- the heating method, the control method of the washing machine characterized in that the on time of the induction module is later than the on time of the motor.
- the induction module is accelerated after the on time of the motor, the control method of the washing apparatus, characterized in that the on when the rotation RPM of the drum is less than a predetermined RPM lower than the tumbling RPM.
- the off time of the motor and the off time of the induction module is the control method of the washing apparatus, characterized in that the same.
- the off point of the induction module is controlled after the motor off point and earlier than the stop point of the drum.
- the induction module is decelerated after the off time of the motor of the drum, the control method of the washing machine, characterized in that off when the rotation RPM of the drum is less than a predetermined RPM lower than the tumbling RPM.
- the washing apparatus further includes a drying temperature sensor for sensing the temperature of the drum,
- the induction module the control method of the washing apparatus, characterized in that the drive of the induction module is forcibly turned off if a predetermined temperature abnormality is detected by the drying temperature sensor before being linked with the driving of the drum.
- the driving of the drum is a control method of a washing machine, characterized in that repeated a plurality of times in the heating step.
- the washing apparatus further includes a washing water temperature sensor for sensing the temperature of the washing water in the tub,
- the washing water temperature sensor is a control method of the washing apparatus, characterized in that provided to sense the temperature of the washing water when the drum is stopped.
- the heating step, the washing method characterized in that the washing water temperature sensor is terminated when it detects a preset temperature.
- the washing apparatus includes a circulating pump for pumping the washing water inside the tub and supplying it to the upper drum.
- Control method of the washing apparatus characterized in that the driving of the drum and the driving of the circulation pump in the heating step.
- the on / off time of the motor for driving the drum and the on / off time of the circulation pump is the control method of the washing apparatus, characterized in that the same.
- the heating step is a control method of the washing apparatus, characterized in that the washing water level is performed in a state lower than the lowest end of the drum.
- washing water level in the heating step the control method of the washing apparatus, characterized in that having or less than the circulating water level formed by the amount of wash water equal to or less than the amount of wash water filled in the circulation path for driving the circulation pump.
- the amount of washing water stored in the tub in the heating step to form the circulation water level is less than 1 liter of the control method of the washing apparatus.
- the driving of the drum control method comprising a tumbling drive and a filtration drive.
- the driving of the drum is a control method of the washing apparatus, characterized in that it comprises a circular drive in which the filtration operation is continuously performed in the tumbling drive.
- the tumbling drive, stop and circulating drive of the drum is repeatedly performed.
- a water supply valve provided to supply wash water into the tub
- a water level sensor for sensing the wash water level in the tub
- It includes a control unit for controlling the drive of the motor, the induction module and the water supply valve,
- the control unit controls the driving unit
- Washing apparatus characterized in that for controlling the driving of the induction module, if the RPM of the drum after the motor is at least a predetermined RPM before reaching the target RPM.
- the control unit controls the driving unit
- the induction module is turned off when the RMP is less than a predetermined RMP before the drum stops after the motor is turned off or after the motor is turned off.
- control unit excludes the interlocking control of the motor and the induction module, forcibly turning off the induction module.
- the control unit is a washing apparatus, characterized in that for controlling the motor to turn off after the predetermined time required.
- the control unit washing apparatus characterized in that for controlling the operation of the operation of the motor and the circulation pump interlocked.
- a water supply valve provided to supply wash water into the tub
- a water level sensor for sensing the wash water level in the tub
- It includes a control unit for controlling the drive of the motor, induction module, circulation pump and water supply valve,
- the control unit controls the driving unit
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- Engineering & Computer Science (AREA)
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- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
Description
Claims (26)
- 터브, 드럼, 터브에 장착되어 인덕션에 의해서 상기 드럼을 가열하는 인덕션 모듈 그리고 터브 내부의 세탁수를 펌핑하여 드럼 상부로 공급하는 순환펌프를 갖는 세탁장치의 제어방법에 있어서,급수밸브를 통해 상기 터브 내부로 세탁수를 급수하는 급수 단계;상기 급수 단계 종료 후, 상기 순환펌프를 작동시켜 세탁수를 순환시키며 상기 드럼을 구동시켜 포 적심을 수행하는 포적심 단계;상기 포적심 단계 종료 후, 상기 인덕션 모듈을 구동하여 가열하는 히팅 단계; 그리고상기 히팅 단계 종료 후, 상기 드럼을 구동시켜 세탁을 수행하는 본 세탁 단계를 포함하고,상기 급수 단계 종료에서의 세탁수위보다 상기 포적심 단계 종료에서의 세탁수위가 낮은 것을 특징으로 하는 세탁장치의 제어방법.
- 제 1 항에 있어서,상기 급수단계에서, 세탁수위가 상기 드럼의 하부 일부분이 세탁수에 잠기는 급수수위 이상으로 급수가 수행되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 2 항에 있어서,상기 급수단계에서, 상기 세탁수위가 단계적으로 상승하도록 상기 급수밸브를 통한 급수가 복수 회차로 수행되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 1 항에 있어서,상기 포적심 단계는 수위를 측정하는 단계를 더 포함하고,상기 수위 측정 단계에서 측정된 수위가 기설정된 순환 수위보다 작은 경우, 추가 급수 단계가 수행되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 4 항에 있어서,상기 순환 수위는, 상기 순환펌프 구동을 위해서 순환 경로 내에 채워지는 세탁수의 양과 같거나 작은 양의 세탁수에 의해서 형성되는 세탁수위이며,상기 순환 수위는 상기 드럼의 최하단부가 세탁수에 잠기지 않는 수위임을 특징으로 하는 세탁장치의 제어방법.
- 제 5 항에 있어서,상기 순환 수위에 해당하는 세탁수의 양은 1.5 리터보다 작은 것을 특징으로 하는 세탁장치의 제어방법.
- 제 4 항에 있어서,상기 추가 급수 단계는 상기 순환 수위까지 수행되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 7 항에 있어서,상기 수위 센싱 단계와 상기 추가 급수 단계에서는, 상기 드럼과 순환펌프의 구동이 정지되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 4 항에 있어서,상기 포적심 단계에서 상기 드럼의 구동은, 텀블링 구동과 필트레이션 구동을 포함하는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 9 항에 있어서,상기 포적심 단계에서, 상기 텀블링 구동과 필트레이션 구동은 순차적 그리고 반복적으로 수행되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 4 항에 있어서,상기 포적심 단계에서, 상기 드럼의 구동은 텀블링 구동에서 연속적으로 필트레이션 구동이 수행되는 순환 구동을 포함하는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 11 항에 있어서,상기 포적심 단계에서, 상기 순환 구동은 복수 회 수행되며, 상기 순환펌프의 구동과 연동되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 12 항에 있어서,상기 순환 구동을 위한 모터의 온 시점과 상기 순환펌프의 온 시점은 동일하고, 상기 순환 구동을 종료하기 위한 상기 모터의 오프 시점과 상기 순환펌프의 오프 시점은 동일한 것을 특징으로 하는 세탁장치의 제어방법.
- 제 11 항에 있어서,상기 순환 구동에서 상기 텀블링 구동의 소요 시간이 상기 필트레이션 구동의 소요 시간보다 큰 것을 특징으로 하는 세탁장치의 제어방법.
- 제 1 항에 있어서,상기 히팅 단계와 상기 본 세탁 단계에서는 상기 급수밸브를 통한 추가적인 급수가 배제되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 1 항에 있어서,상기 포적심 단계는, 상기 드럼과 순환펌프의 구동 후 세탁수위의 변화가 없는 경우 종료하는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 16 항에 있어서,상기 포적심 단계는, 세탁수위가 상기 순환펌프 구동을 위해서 순환 경로 내에 채워지는 세탁수의 양과 같거나 작은 양의 세탁수에 의해 형성되는 순환 수위에서 종료하고,상기 순환 수위에서 상기 히팅 단계와 본 세탁 단계가 수행되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 1 항에 있어서,상기 히팅 단계에서 세탁수위는, 상기 드럼의 최하단부가 세탁수에 잠기지 않는 수위인 것을 특징으로 하는 세탁장치의 제어방법.
- 제 18 항에 있어서,상기 히팅 단계에서 세탁수위는, 상기 순환펌프 구동을 위해서 순환 경로 내에 채워지는 세탁수의 양과 같거나 작은 양의 세탁수에 의해 형성되는 순환 수위와 같거나 작은 것을 특징으로 하는 세탁장치의 제어방법.
- 제 19 항에 있어서,상기 히팅 단계에서 상기 터브에 저수되어 상기 순환 수위를 형성하는 세탁수의 양은 1 리터 이하인 것을 특징으로 하는 세탁장치의 제어방법
- 제 18 항에 있어서,상기 히팅 단계에서, 상기 드럼, 상기 순환 펌프 그리고 상기 인덕션 모듈이 구동되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 21 항에 있어서,상기 드럼이 구동하는 구간은 상기 순환 펌프와 상기 인덕션 모듈이 구동되는 구간을 포함하고, 상기 드럼이 구동하지 않는 구간에서 상기 순환 펌프와 상기 인덕션 모듈의 구동이 배제되는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 21 항에 있어서,상기 히팅 단계에서, 상기 드럼의 실동률은 80% 이상인 것을 특징으로 하는 세탁장치의 제어방법.
- 제 21 항에 있어서,상기 히팅 단계에서, 상기 드럼의 구동은 텀블링 구동과 필트레이션 구동을 포함하는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 24 항에 있어서,상기 히팅 단계에서, 상기 드럼의 구동은 텀블링 구동에서 연속적으로 필트레이션 구동이 수행되는 순환 구동을 포함하는 것을 특징으로 하는 세탁장치의 제어방법.
- 제 1 항에 있어서,상기 포적심 단계에서, 상기 순환펌프가 작동하는 구간 중 전반기에는 상기 드럼이 텀블링 구동을 하고 후반기에는 필트레이션 구동을 하는 것을 특징으로 하는 세탁장치의 제어방법.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/971,881 US20210087734A1 (en) | 2018-02-22 | 2019-02-20 | Washing apparatus and method for controlling same |
AU2019224719A AU2019224719B2 (en) | 2018-02-22 | 2019-02-20 | Washing apparatus and method for controlling same |
EP22201304.7A EP4137630A1 (en) | 2018-02-22 | 2019-02-20 | Washing apparatus and method for controlling same |
EP19756968.4A EP3757269A4 (en) | 2018-02-22 | 2019-02-20 | WASHING DEVICE AND ITS CONTROL METHOD |
EP22201317.9A EP4141159A1 (en) | 2018-02-22 | 2019-02-20 | Washing apparatus and method for controlling same |
CN202211054975.3A CN115418828A (zh) | 2018-02-22 | 2019-02-20 | 洗衣装置及其控制方法 |
CN202211062909.0A CN115418829A (zh) | 2018-02-22 | 2019-02-20 | 洗衣装置的控制方法 |
CN201980014620.1A CN111742092A (zh) | 2018-02-22 | 2019-02-20 | 洗衣装置及其控制方法 |
AU2022204449A AU2022204449B2 (en) | 2018-02-22 | 2022-06-23 | Washing apparatus and method for controlling same |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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KR20180021233 | 2018-02-22 | ||
KR10-2018-0021233 | 2018-02-22 | ||
KR1020180050965A KR102550766B1 (ko) | 2018-02-22 | 2018-05-03 | 의류처리기기 및 의류처리기기의 제어방법 |
KR10-2018-0050965 | 2018-05-03 | ||
KR1020180123453A KR102647359B1 (ko) | 2018-10-16 | 2018-10-16 | 세탁장치 및 이의 제어방법 |
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