WO2012005514A2 - Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine - Google Patents
Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine Download PDFInfo
- Publication number
- WO2012005514A2 WO2012005514A2 PCT/KR2011/004950 KR2011004950W WO2012005514A2 WO 2012005514 A2 WO2012005514 A2 WO 2012005514A2 KR 2011004950 W KR2011004950 W KR 2011004950W WO 2012005514 A2 WO2012005514 A2 WO 2012005514A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- washing machine
- temperature
- water level
- water
- washing
- Prior art date
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/16—Washing liquid temperature
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/02—Water supply
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/08—Draining of washing liquids
-
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
-
- 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
- D06F39/081—Safety arrangements for preventing water damage
-
- 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
- D06F39/083—Liquid discharge or recirculation 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
- D06F39/088—Liquid supply arrangements
Definitions
- the present invention relates to a control method of a washing machine and a freezing management system of a washing machine.
- a washing machine in general, includes an outer tub for washing water, and an inner tub rotatably provided in the outer tub to accommodate clothes and the like (hereinafter, referred to as 'foam'), and washing of the fabric is performed as the inner tub is rotated.
- 'foam' clothes and the like
- the washing machine has a top loading type in which an inner tank is vertically provided so that the foam can be fed from the upper side and rotates about a vertical axis, and the inner tank is horizontally provided so that the foam can be fed from the front and rotates about the horizontal axis. It can be divided into front loading type.
- the washing machine of the top-loading method can be largely classified into an agitator type and a pulsator type, and the agitating type washes by rotating a laundry rod towering in the center of the inner tank, and the vortex type is located at the bottom of the inner tank.
- the formed disk-shaped pulsator or inner tub is rotated to wash.
- the front loading method is commonly referred to as a drum washing machine, and a lifter is provided on an inner circumferential surface of a drum constituting an inner tank, and as the drum rotates, the lifter lifts the cloth by the lifter and drops it.
- washing water is frozen in an environment such as a winter season when the temperature of the outside air drops below zero, so that the water supply device or the drainage device does not operate normally.
- An object of the present invention is to provide a control method of a washing machine that can prevent the washing machine from freezing.
- an object of the present invention is to provide a control method of a washing machine to stop the operation of the washing machine according to the freezing conditions set by reflecting the temperature inside the washing machine.
- an object of the present invention is to provide a control method of a washing machine that can prevent the freezing of the washing machine in advance by allowing the user to immediately recognize when the temperature inside the washing machine is sensed below a predetermined level.
- an object of the present invention is to provide a control method of a washing machine that can accurately detect whether or not frozen by several times depending on each step of operating the washing machine.
- an object of the present invention is to provide a control method of a washing machine that can detect whether the washing machine is frozen.
- an object of the present invention is to provide a control method of a washing machine that can prevent the washing water to freeze by removing the residual water remaining in the washing machine.
- the present invention is to provide a control method of the washing machine to improve the ease of use by allowing the user to selectively remove the residual water remaining in the washing machine.
- the present invention is to provide a freezing management system of a washing machine that can detect and prevent freezing at a short or long distance by using a communication medium.
- the control method of the washing machine of the present invention comprises the steps of (a) detecting the temperature inside the washing machine through a temperature sensor; And (b) operating the heater provided in the washing machine when the temperature sensed in the step (a) is lower than the set temperature.
- control method of the washing machine of the present invention is a control method of a washing machine having at least one of a water supply valve, a drain valve and a drain pump, the temperature provided in the water supply valve, drain valve or drain pump provided in the washing machine (A) sensing a temperature through a sensor; And (b) operating the water supply valve, the drain valve or the drain pump equipped with the temperature sensor when the temperature sensed in the step (a) is lower than the set temperature.
- control method of the washing machine of the present invention before the water supply to wash water, performing the drainage when the water level in the outer tank is above the set level (a); (B) comparing the temperature inside the washing machine with a reference temperature when the time taken for draining in the step (a) is greater than or equal to a set time; And (c) outputting a first error message when the temperature inside the washing machine is lower than the reference temperature in step (b).
- control method of the washing machine of the present invention is to perform drainage when the water level in the outer tank is higher than the first set water level set to determine whether the overflow occurred before the washing water into the outer tank (a) step; (B) performing draining when the water level in the outer tank is higher than the second set water level lower than the first set water level after the step (a); (C) comparing the temperature inside the washing machine with a predetermined reference temperature when the time taken for draining up to a predetermined water level in step (b) is greater than a predetermined drainage setting time; And (d) outputting a first error message when the temperature inside the washing machine is lower than the predetermined reference temperature in step (c).
- control method of the washing machine of the present invention comprises the steps of (a) watering the wash water into the outer tank; (B) comparing the temperature inside the washing machine with a third reference temperature when the water level in the outer tank is lower than the first water supply setting level after the washing water is supplied for the first water supply setting time; And (c) outputting a first error message when the temperature inside the washing machine is lower than the third reference temperature in step (b).
- control method of the washing machine of the present invention (a) detecting the temperature before the water supply is made into the outer tank; (B) supplying water into the tub; (C) detecting the water level in the outer tank; And (d) outputting a fifth error message when the temperature sensed in the step (a) is lower than the reference temperature and the water level in the outer tank does not reach the first set water level within the first set time.
- control method of the washing machine of the present invention comprises the steps of (a) detecting the amount of change in the output voltage of the water supply valve, when power is applied to the water supply valve; And (b) performing thawing when it is detected in step (a) that the output voltage of the water supply valve decreases by a predetermined value or more.
- control method of the washing machine of the present invention (a) detecting the amount of change in the output voltage of the drain pump, when power is applied to the drain pump; And (b) performing thawing when it is detected in step (a) that the output voltage of the drain pump decreases by a predetermined value or more.
- control method of the washing machine of the present invention comprises the steps of (a) detecting the amount of change in the output voltage of the drain valve, when power is applied to the drain valve; And (b) performing thawing when it is detected in step (a) that the output voltage of the drain valve is reduced by a predetermined value or more.
- the freezing management system of the washing machine of the present invention includes a washing machine which determines whether the washing water is frozen and transmits a signal indicating whether the washing water is frozen to the outside through a communication medium; It includes a remote control device for receiving whether the washing water is frozen from the washing machine.
- the freezing management system of the washing machine of the present invention the user inputs a signal for preventing the freezing of the wash water, and a remote control device for transmitting the freeze protection signal to the washing machine through a communication medium; Receiving the freeze protection signal from the remote control device, and comprises a washing machine to perform the freeze protection operation of the wash water.
- the control method of the washing machine of the present invention has an effect of preventing the washing machine from being frozen even in a low temperature environment such as a cold weather.
- control method of the washing machine of the present invention by applying heat directly to the components of the washing machine that can cause freezing, it is possible to effectively prevent the freezing or thawing of the components.
- control method of the washing machine of the present invention does not need to provide a separate heater for applying heat to a component frequently in contact with the wash water, and can prevent freezing by using self-heating generated when the component is operated. It works.
- control method of the washing machine of the present invention has the effect of accurately detecting whether or not frozen.
- control method of the washing machine of the present invention has the effect of accurately detecting whether the freezing by determining whether to freeze several times in accordance with each step of operating the washing machine.
- control method of the washing machine of the present invention has the effect that it is possible to determine whether or not frozen before a predetermined stroke of washing, rinsing, dehydration, and the like.
- control method of the washing machine of the present invention can ensure the safety by stopping the operation of the washing machine when the washing machine freezes, there is an effect that can be induced to take appropriate measures by outputting an error indicating the freezing to the outside.
- control method of the washing machine of the present invention there is an effect that can prevent the residual water remains frozen in the washing machine.
- control method of the washing machine of the present invention has an effect of preventing the washing machine from being left in a frozen state for a long time by performing thawing when it is detected that the washing machine is frozen.
- control method of the washing machine of the present invention simply or accurately detect whether the freeze by changing the output voltage or output current of the electrical equipment constituting the washing machine, such as a water supply valve, drain valve or drain pump. It can be effective.
- the freezing management system of the washing machine of the present invention there is an effect that can provide information about the freezing of the washing machine to a user in a remote place.
- the freezing management system of the washing machine of the present invention can confirm whether the washing machine is frozen at a remote place through a communication network.
- the freezing management system of the washing machine of the present invention the operation for preventing the freezing of the washing machine can be performed remotely through a communication network.
- FIG. 1 is a side cross-sectional view of a washing machine according to an embodiment of the present invention.
- FIG. 2 is a partially enlarged view showing the lower part of the outer tub shown in FIG. 1.
- FIG. 3 is a block diagram showing a control configuration of a washing machine according to an embodiment of the present invention.
- Figure 4 shows an example of a configuration for supplying power to prevent freezing in the washing machine according to an embodiment of the present invention.
- FIG. 5 is a flowchart illustrating a control method of the washing machine according to the first embodiment of the present invention.
- FIG. 6 is a flowchart illustrating a control method of a washing machine according to a second embodiment of the present invention.
- FIG. 7 is a flowchart illustrating a control method of a washing machine according to a third embodiment of the present invention.
- FIG. 8 is a flowchart illustrating a control method of a washing machine according to a fourth embodiment of the present invention.
- 9A to 9C are flowcharts illustrating a control method of a washing machine according to a fifth embodiment of the present invention.
- FIG. 10 illustrates another example of a configuration of supplying power for preventing freezing in the washing machine 100 according to an embodiment of the present invention.
- FIG. 11 is a flowchart illustrating a control method of a washing machine according to a sixth embodiment of the present invention.
- FIG. 12 is a flowchart illustrating a control method of a washing machine according to a seventh embodiment of the present invention.
- FIG. 13 is a flowchart illustrating a control method of a washing machine according to an eighth embodiment of the present invention.
- FIG. 14 is a flowchart illustrating a control method of a washing machine according to a ninth embodiment of the present invention.
- 15 is a flowchart illustrating a control method of a washing machine according to a tenth embodiment of the present invention.
- 16 is a flowchart illustrating a control method of a washing machine according to an eleventh embodiment of the present invention.
- 17 is a flowchart illustrating a control method of a washing machine according to a twelfth embodiment of the present invention.
- FIG. 18 is a flowchart illustrating a control method of a washing machine according to a thirteenth embodiment of the present invention.
- FIG. 19 is a flowchart illustrating a control method of a washing machine according to a fourteenth embodiment of the present invention.
- 20 is a flowchart illustrating a control method of a washing machine according to a fifteenth embodiment of the present invention.
- 21 is a flowchart illustrating a control method of a washing machine according to a sixteenth embodiment of the present invention.
- FIG. 22 is a flowchart illustrating a control method of a washing machine according to a seventeenth embodiment of the present invention.
- FIG. 23 is a graph showing an output voltage change (a) when the water supply valve is thawed and a change in output voltage (b) when the drain pump is thawed.
- 24 is a flowchart illustrating a control method of a washing machine according to an eighteenth embodiment of the present invention.
- 25 is a block diagram illustrating a control flow of a freeze management system according to an embodiment of the present invention.
- 26 is a flowchart showing a first embodiment of a freezing management method of the washing machine.
- FIG. 27 is a flowchart illustrating a second embodiment of a freezing management method of the washing machine.
- FIG. 28 is a flowchart illustrating a third embodiment of a freezing management method of the washing machine.
- FIG. 1 is a side cross-sectional view of a washing machine 100 according to an embodiment of the present invention.
- FIG. 2 is a partially enlarged view showing the lower part of the outer tub shown in FIG. 1.
- 3 is a block diagram showing a control configuration of the washing machine 100 according to an embodiment of the present invention.
- a washing machine 100 includes a cabinet 1 forming an appearance, an outer tub 2 provided in the cabinet 1 to contain wash water, and an outer tub. And an inner tub 3 rotatably provided in (2) to accommodate laundry, and a pulsator 4 rotatably provided below the inner tub 3.
- the inner tank 3 is provided with a plurality of handmade 3h so that the wash water can flow between the outer tank 2 and the inner tank 3.
- the upper cover 12 may be provided at an upper portion of the outer tub 2, the center cover of which the center portion is opened so that laundry can be introduced into the inner tub 3.
- One side of the cabinet 1 is provided with a control panel 11 that provides a user interface with operation keys and a display for displaying an operation state of the washing machine so that a user can input various commands for controlling the operation of the washing machine. Can be.
- the washing machine 100 is connected to an external water source such as a faucet, the water supply passage 5 for supplying the wash water to the inner tank (2) and the outer tank (3), and the water supply passage (5)
- Water supply valve (6) for regulating the water
- a detergent box (7) containing detergent
- a drain passage (9) for draining the wash water in the outer tank (2)
- a drain pump 10 provided on the drain passage 9, and a drive unit 13 for selectively rotating the inner tank 3 or the pulsator 4 may be included.
- the driving unit 13 may include a motor (not shown) for generating a rotational force and a clutch (not shown) for selectively transmitting the rotational force of the motor to the inner tank 3 or the pulsator 4.
- the washing machine 100 includes a control unit 14 for controlling the overall operation of the washing machine, a freezing prevention selection unit 16 to which a control command for executing freezing prevention is input, and an outer tub 2
- the water level sensor 20 for detecting the level of the wash water contained in the), the temperature sensor 18, the display unit 22 for displaying the operating state of the washing machine, and the heater 28 may be further included.
- the heater 28 may be provided under the outer tub 2, and as shown in FIG. 2, a heater accommodating part which forms a predetermined space for accommodating the heater 28 is formed in the lower tub 2.
- the heater cover 71 may be provided to cover the upper side of the heater accommodating part.
- the heater cover 71 may be provided with a hole 71h to allow the washing water in the outer tub 2 to be drained, and the drain receiving hole 74 may be formed in the heater accommodating part so that the washing water may be drained to the drainage passage 25. Can be formed.
- the temperature sensor 18 may be provided at the bottom of the outer tub 2.
- the temperature sensor 18 measures the temperature of the washing water or the temperature of the air in accordance with the level of the washing water in the outer tank (2). That is, it is apparent that the temperature sensed by the temperature sensor 18 will be the temperature of the medium in contact with the temperature sensor 18.
- the washing water of a predetermined level or more is stored in the outer tank 2, so that the temperature sensor 18 If soaked in the wash water will be the temperature of the wash water, otherwise it will be the temperature of the air.
- Figure 4 shows an example of a configuration for supplying power for freezing prevention in the washing machine 100 according to an embodiment of the present invention.
- the washing machine 100 may include a first power supply unit 24 and a second power supply unit 26.
- the first power supply unit 24 supplies power of a predetermined size or less in a state where the washing machine is waiting without washing, rinsing, or dehydration.
- the washing machine is standby by the power supplied by the first power supply unit 24.
- the display unit 22 can be operated even in the state of being in use.
- the second power supply unit 26 is capable of supplying more than the predetermined size of power and supplies power required to operate the heater 28.
- the second power supply unit 26 may supply power to the driving unit 13 to perform washing, rinsing, or dehydration.
- Washing machine 100 to prevent the various components constituting the washing machine to freeze, while washing, rinsing or dehydration is not in progress, the temperature sensor 18 The temperature is sensed by the heater, and the heater 28 is activated when the sensed temperature is lower than the set temperature.
- the set temperature means a reference temperature that is expected to freeze the various components of the washing machine when the washing machine is left under the set temperature, it may be preferably set to a value below zero.
- the power supplied to the temperature sensor 18 and the heater 28 may be supplied by either the first power supply 24 or the second power supply 26, but the washing machine does not proceed to washing, rinsing, or dehydration.
- the first power supply unit 24 supplies power to the temperature sensor 18 during the temporary standby time, and when the temperature detected by the temperature sensor 18 is lower than the set temperature, the first power supply unit 26 supplies the heater 28. It is desirable to supply power to operate. There is an effect that can reduce the amount of power consumed by the temperature sensor 18 in the washing machine standby state.
- control unit 14 controls the first power supply unit 24 to supply power to operate the temperature sensor 18, after which the temperature sensed by the temperature sensor 18 is set temperature
- the second power supply 26 may be controlled to supply power for operating the heater 28.
- the start of the freezing prevention means that a predetermined algorithm is performed so that various components constituting the washing machine are not frozen, and two aspects are possible.
- freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
- the washing machine is provided with a freeze protection selection unit 16 to select the freeze protection, freeze protection starts only when the user selected through the freeze protection selection unit 16 Will be.
- freeze protection start (S501, S601, S701, S801) shown in Figs. 5 to 8 to be described later may be any of the above two.
- the temperature sensor 18 is sufficient if it can detect the temperature inside the washing machine, the temperature sensor provided in the outer tank (2) to measure the temperature of the wash water, or the temperature sensor provided in the water supply valve (6) It may be a temperature sensor provided in the drain valve 8, or a temperature sensor provided in the drain pump 10.
- the driving unit 13 may include a drive driver for applying a drive signal to the motor to control the rotation of the motor.
- a drive driver may be an intelligent power module (IPM), which drives a power device such as a power MOSFET (metal-oxide-semiconductor field-effect transistor) or an insulated gate bipolar transistor (IGBT). Power modules with circuits or self-protection features can be applied.
- IPM intelligent power module
- MOSFET metal-oxide-semiconductor field-effect transistor
- IGBT insulated gate bipolar transistor
- the IPM may be provided with a temperature sensor by itself, and in the temperature sensing steps S502, S602, S702, and S802 in FIGS. 5 to 8 to be described later, it is also possible to use the temperature sensor provided in the IPM.
- the scope of the washing machine of the present invention should be interpreted to include a dry washing machine combined with a drying function
- the conventional dry-use washing machine is a tank in which laundry is added to dry the laundry (3)
- a drying duct for supplying high temperature air and a temperature sensor for measuring the temperature in the drying duct are provided, indicating that the temperature sensor 18 may be a temperature sensor for measuring the temperature in the drying duct. .
- the heater 28 can also be provided in the various components which comprise the washing machine 100.
- FIG. For example, there is a high possibility of freezing occurring in the water supply valve 6, the drain valve 8, the drain pump 10, etc., through which the washing water flows, and the heater 28 includes the water supply valve 6, the drain valve 8, and the like. It may be provided in the drain pump (10).
- FIG. 5 is a flowchart illustrating a control method of the washing machine according to the first embodiment of the present invention.
- the temperature is sensed by the temperature sensor 18 (S502), when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the heater 28 is operated (S503) , S504).
- the temperature sensor 18 repeatedly detects the temperature (S506), and the temperature detected by the temperature sensor 18 again is the set temperature.
- the operation of the heater 28 is stopped (S507, S508). Then, depending on whether the freeze detection is released again (S505), by detecting the temperature by the temperature sensor 18 (S506), when the detected temperature is lower than the set temperature, the heater 28 is again operated ( S507, S504).
- freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
- FIG. 6 is a flowchart illustrating a control method of a washing machine according to a second embodiment of the present invention.
- the operation of the heater 28 is stopped when the set time has elapsed (S606, S607, S608).
- the heater 28 may be set within a range so as not to overheat.
- the temperature sensor 18 periodically detects the temperature (S602), and when the detected temperature is lower than the set temperature (S603), the heater 28 again Operation S604 is performed.
- freeze protection is released.
- the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
- FIG. 7 is a flowchart illustrating a control method of a washing machine according to a third embodiment of the present invention.
- step S704 the section in which the heater 28 is not operated is called 'stop', and in step S708, 'stop' is because the steps S704 and S708 are different in the operation method of the heater 28. to be. That is, in step S704, while the heater 28 is repeatedly operated and stopped for a predetermined time, the heater 28, in which operation is stopped in step S708, returns to step S705 from step S708 to perform steps S706 and S707. Wait for it not to work again.
- step S707 when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the process returns to step S704 again to repeat the operation and stop of the heater 28.
- the operation and the stop are repeated instead of continuously operating the heater 28, and thus, the operation S704 is repeated. There is a difference from the first embodiment.
- step S705 the freeze protection release in step S705, the condition that the user inputs the release command through the freeze protection selection unit 16, or the condition that the user inputs a control command for washing, rinsing or dehydration Can be.
- FIG. 8 is a flowchart illustrating a control method of a washing machine according to a fourth embodiment of the present invention.
- the operation of the heater 28 is stopped when the set time has elapsed (S806, S807, S808).
- the heater 28 may be set within a range so as not to overheat.
- the temperature sensor 18 periodically detects the temperature (S802), and when the detected temperature is lower than the set temperature, the heater 28 is operated again ( S803, S804).
- step S804 the section in which the heater 28 is not operated is called 'stop', and in step S808, 'stop' is that the steps S804 and S808 are different in the operation method of the heater 28. to be. That is, in step S804, the heater 28 repeatedly operates and stops for a predetermined time, while the heater 28, in which operation is stopped in step S808, is operated until the step 28 returns from step S809 to step S802 to operate again in step S804. Wait without.
- the release of the freeze protection of step S809 may be conditional on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
- 9A to 9C are flowcharts illustrating a control method of a washing machine according to a fifth embodiment of the present invention.
- the washing machine 100 may perform a process of detecting whether the washing machine is frozen after the washing machine is operated to proceed with washing, rinsing, or dehydration.
- the washing machine 100 determines whether an overflow occurs by comparing the water level in the outer tub 2 with the first set water level after power is applied to the washing machine, and draining the water according to the determination result.
- the first freeze determination through the series of flows shown in FIG. 9A and the water level in the outer tank 2 are compared with the second set water level, and the drainage is performed when the water level is greater than or equal to the second set water level.
- the water level in the outer tank 2 is detected by the water level sensor 20, and the overflow in the outer tank 2 is compared with the detected value by the first set level. It is determined whether it has occurred (S902).
- the reason for performing this process is to detect whether the washing water in the outer tank (2) is filled by the special circumstances that occurred before the washing machine is operated, the amount exceeded a certain level and overflowed the outer tank (2). For example, the abnormality arises in the water supply valve 6, and the case where wash water is continuously supplied into the outer tank 2 even if the washing machine is turned off. Accordingly, it is preferable that the first set water level is set in consideration of the water level overflowing from the outer tub 2.
- step S902 If it is determined in step S902 that the water level in the outer tub 2 is higher than the first set water level, the controller 14 causes the display unit 22 to output a third error message (S903).
- the third error message is a message output so that the user can recognize that an overflow has occurred.
- the controller 14 operates the drainage pump 10 to drain the wash water in the outer tub 2 (S904), and when the water level in the outer tub 2 is lower than the second set level within a predetermined time (S905).
- the third error message is turned OFF (S906), and the second set water level is preferably set to an air supply level in which the washing water in the outer tub 2 is drained.
- the second set water level is an air level.
- the controller 14 compares the temperature detected by the temperature sensor 18 with the first reference temperature (S908), and as a result, the detected temperature is the first When it is determined that the temperature is lower than the reference temperature, the first error message is displayed on the display unit 22. When the detected temperature is determined to be higher than the first reference temperature, the second or third error message is output through the display unit 22. (S910).
- the second freeze determination process is performed under the condition that the water level in the outer tank 2 is lower than the first set water level. That is, when it is determined that the water level detected by the water level sensor 20 is lower than the first set water level in step S902 or through the steps S902, S903, S904, S905, and S906, the water level in the outer tank 2 becomes the second set water level. If lower, it is to determine whether or not frozen in the subsequent process.
- the second freezing determination process includes comparing the temperature sensed by the temperature sensor 18 with the second reference temperature (S911). If the sensed temperature is less than or equal to the second reference temperature in step S911, the controller 14 controls the first error message to be output through the display unit 22 (S912).
- the water level in the outer tank 2 in step S911 may be equal to or less than the first set level (if possible when entering S911 immediately after S902) or may be less than or equal to the second set level (this is S903, S904, S905, For example, if the water level in the outer shell (2) becomes the airborne level after performing S906 in sequence.). If the water level of the outer tub 2 is higher than the second set level and lower than the first set level, the temperature sensor 18 will sense the temperature of the wash water in the outer tub 2. On the other hand, if the water level of the outer tank 2 is lower than the second set water level (for example, the air level), the temperature sensor 18 will detect the temperature of the air inside the washing machine.
- the second reference temperature is preferably set to a subzero value in consideration of the freezing point of the wash water, and may be set below the below zero degree considering the case where the temperature of the air is sensed by the temperature sensor 18.
- step S911 If it is determined in step S911 that the temperature sensed by the temperature sensor 18 is lower than the second reference temperature, the controller 14 determines that the temperature inside the washing machine is low enough to freeze, and immediately changes the display unit 22.
- the first error message is output through the operation S912. Whether to detect the freezing by performing the steps S911 and S912 is to determine or predict whether to freeze based on the detection value by the temperature sensor 18, regardless of the drainage characteristics of the wash water, the sequence shown in Figure 9b
- the present invention is not limited thereto, and may be performed at any point in the washing machine operation process.
- step S911 if the temperature sensed by the temperature sensor 18 is less than or equal to the second set temperature, it may be predicted with sufficient accuracy that the components of the washing machine, for example, the water supply valve 6 or the drain pump 10, will be frozen.
- the second set temperature is preferably set to an appropriate value by experiment.
- step S911 if it is determined in step S911 that the temperature sensed by the temperature sensor 18 is higher than the second reference temperature, the controller 14 compares the level detected by the level sensor 20 with the third set level (S913). ).
- the controller 14 controls the drain pump 10.
- the drainage is performed (S915), the drainage is performed during the second drainage setting time, and when the water level change value in the outer tank 2 is equal to or greater than the reference value (S916), it is determined that drainage is normally performed and the amount of water is detected ( In operation S914 and step S916, if the water level change value is less than the reference value despite the second drainage time elapsed (S917), the temperature detected by the temperature sensor 18 is compared with the third reference temperature (S918).
- the first error message is output through the display unit 22 (S919). If the detected temperature is higher than the third reference temperature, the display unit 22 is displayed. 2nd error via) The message is controlled to be output (S920).
- the third freeze determination process is performed under the condition that the water level in the outer tank 2 is lower than or equal to the third set water level, and is performed after the quantity of water detection step S914 shown in FIG. 9B. Can be.
- step S914 If the amount of water in the inner tank (6) is detected in step S914, the pattern of each stroke, such as washing, rinsing, dehydration, etc., which is subsequently performed according to the detected amount of water, is determined.
- the water supply (S921) is a step of watering the wash water into the outer tank (2), the amount of wash water is also set according to the detected amount of water in step S914.
- step S923 comparing the water level of the outer tub 2 with the first water supply setting water level is performed, The controller 14 determines that the water supply is normally performed when the water level detected by the water level sensor 20 is greater than or equal to the first water supply setting level, and after the second water supply setting time has elapsed (S924), the water level in the outer tub 2 is reconstructed. It compares with the water supply setting level (S928).
- the first water supply set water level refers to a water level that is expected to be reached when normal water supply is performed during the first water supply set time
- the second water supply set water level is a target watered into the outer tank 2 according to the detected quantity in step S914. It means water level.
- step S923 if it is determined in step S923 that the water level in the outer tank 2 has not reached the first water supply setting level, the controller 14 compares the temperature detected by the temperature sensor 18 with the fourth reference temperature (S925). In contrast, when the detected temperature is lower than the fourth reference temperature, the display unit 22 controls the first error message to be displayed. On the contrary, when the detected temperature is higher than the fourth reference temperature, the fourth error message is controlled. Control the output.
- the fourth error message is a message for notifying the user that water supply is not normally performed due to a failure of the water supply valve 6 or the like.
- the controller 14 may control the display unit 22 to display the fourth error message in operation S929. ).
- step S928 if the water level detected by the water level sensor 20 in step S928 is higher than the second water supply setting level, water supply is normally performed.
- the control unit 14 performs the first washing (S930) and the heater by a preset algorithm.
- the operation 28 is performed to wash the washing water in the tub 2 by heating (S911), second washing (S932), and draining (S933).
- the inner tub 6 and / or the pulsator 4 rotate in the first washing operation S930 and the second washing operation S933, and the drainage S933 is performed by the drain pump 10.
- the control unit 14 displays the second error message through the display unit 22. It is controlled to (S940). On the contrary, if it is determined that the water level in the outer tank (2) is below the drainage completion level in step S934, the drainage is normally performed, and then, after rinsing (S935), simple dehydration (S936), and main dehydration (S937), etc. Operation of the washing machine is completed by turning off the power of the washing machine (OFF) (S938).
- FIG. 10 illustrates another example of a configuration of supplying power for preventing freezing in a washing machine according to an embodiment of the present invention.
- the washing machine includes a first power supply unit 24 and a second power supply unit 26.
- the first power supply unit 24 supplies power of a predetermined size or less in a state where the washing machine is waiting without washing, rinsing, or dehydration.
- the washing machine is standby by the power supplied by the first power supply unit 24.
- the display unit 22 can be operated even in the state of being in use.
- the second power supply unit 26 may supply power over the predetermined size, and supply power required to operate the water supply valve 6, the drain valve 8, and the drain pump 10. Meanwhile, power may be supplied to the driving unit 13 during washing, rinsing, or dehydration through the second power supply unit 26.
- the temperature is sensed by the temperature sensor 18 in order to prevent the various components constituting the washing machine from being frozen while the washing machine is in the standby state without washing, rinsing, or dehydration.
- the sensed temperature is lower than the set temperature, various components constituting the washing machine are operated to prevent freezing through self-heating generated when the component is operated.
- the set temperature means a reference temperature that is expected to freeze the various components of the washing machine when the washing machine is left under the set temperature, it may be preferably set to a value below zero.
- the power supplied to the temperature sensor 18 and the heater 28 may be supplied by either the first power supply 24 or the second power supply 26, but the washing machine does not proceed to washing, rinsing, or dehydration.
- the first power supply unit 24 supplies power to the temperature sensor 18, and when the temperature detected by the temperature sensor 18 is lower than the set temperature, the second power supply unit 26 supplies the heater 28.
- the drain valve 10 or the drain pump 10 it is preferable to supply power. There is an effect that can reduce the amount of power consumed by the temperature sensor 18 in the washing machine standby state.
- control unit 14 controls the first power supply unit 24 to supply power to operate the temperature sensor 18, after which the temperature sensed by the temperature sensor 18 is set temperature
- the second power supply 26 may be controlled to supply power for operating the water supply valve 6, the drain valve 8, or the drain pump 10.
- the start of the freezing prevention means that a predetermined algorithm is performed so that various components constituting the washing machine are not frozen, and two aspects are possible.
- freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
- a freezing prevention selection unit 16 capable of selecting freezing prevention of the washing machine is provided, and the freezing prevention starts only when the user selects the freezing prevention selection unit 16. Will be.
- the freeze protection start (S1101, S1201, S1301, S1401, S1501, S1601, S1701, and S1801) shown in FIGS. 11 to 18 to be described later may specify which of the two.
- the temperature sensor 18 of the present invention may be provided in any of the water supply valve 6, the drain valve 8 or the drain pump 10, which will be described in more detail in the following embodiments. .
- FIGS. 11 to 18 embodiments of the freezing prevention method of the water supply valve 6 will be described with reference to FIGS. 11 to 18.
- the freezing prevention method illustrated in FIGS. 11 to 18 may be similarly applied to prevent the freezing of the drain valve 8, and in this case, the temperature sensor 18 is provided in the drain valve 10 and the temperature sensor ( It is specified that there is only a difference in that the operation of the drain valve 10 is determined according to the detected value of 18).
- FIG. 11 is a flowchart illustrating a control method of a washing machine according to a sixth embodiment of the present invention.
- the temperature sensor 18 is provided in the water supply valve (6).
- the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
- FIG. 12 is a flowchart illustrating a control method of a washing machine according to a seventh embodiment of the present invention.
- the temperature sensor 18 is provided in the water supply valve (6).
- the operation of the water supply valve 6 is stopped when the set time has elapsed.
- the set time May be set within a range such that the water supply valve 6 is not overheated in consideration of the heat generation degree of the water supply valve 6.
- the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature (S1203), the water supply valve 6 is operated again. (S1204).
- freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
- FIG. 13 is a flowchart illustrating a control method of a washing machine according to an eighth embodiment of the present invention.
- the temperature sensor 18 is provided in the water supply valve (6).
- step S1304 the section in which the water supply valve 6 is not operated is referred to as 'stop', and in step S1308, the term 'stop' is different from the operation method of the water supply valve 6 between steps S1304 and S1308. Because there is. That is, in step S1304, while the water supply valve 6 repeats operation and stops for a predetermined time, the flow returns to step S1305 from step S1308 and performs steps S1306 and S1307 to wait without operation until it is operated again.
- step S1307 if the temperature sensed by the temperature sensor 18 is lower than the set temperature, the flow returns to step S1304 again to repeat the operation and stop of the water supply valve (6).
- the water supply valve 6 when the temperature S1302 detected by the temperature sensor 18 is lower than the set temperature, the water supply valve 6 is not continuously operated, but the operation and stop are repeated.
- the freeze protection release in step S1305 is conditional on the user inputting the release command through the freeze protection selection unit 16, or condition that the user inputs a control command for washing, rinsing or dehydration. Can be.
- FIG. 14 is a flowchart illustrating a control method of a washing machine according to a ninth embodiment of the present invention.
- the temperature sensor 18 is provided in the water supply valve (6).
- the operation of the water supply valve 6 is stopped when the set time has elapsed.
- the set time may be set within a range such that the water supply valve 6 is not overheated in consideration of the heat generation degree of the water supply valve 6.
- the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the water supply valve 6 is operated again (S1403, S1404).
- step S1404 the section in which the water supply valve 6 is not operated is called 'stop', and in step S1408, 'stop' is that, in steps S1404 and S1408, there is a difference in the operation method of the water supply valve 6. Because there is. That is, in step S1404, the water supply valve 6 is repeatedly operated and stopped for a predetermined time, while the water supply valve 6 in which the operation is stopped in step S1408 is returned to step S1402 in step S1409 to be operated again in step S1403. Wait until it doesn't work.
- the release of the freeze protection in step S1409 may be conditional on the user inputting the release command through the freeze protection selection unit 16, or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
- 15 is a flowchart illustrating a control method of a washing machine according to a tenth embodiment of the present invention.
- the temperature sensor 18 is provided in the drain pump 10.
- freeze protection is released.
- the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
- 16 is a flowchart illustrating a control method of a washing machine according to an eleventh embodiment of the present invention.
- the temperature sensor 18 is provided in the drain pump 10.
- the temperature is sensed by the temperature sensor 18 (S1602), when the temperature sensed by the temperature sensor 18 is lower than the set temperature (10) (S1603) , S1604).
- the temperature sensor 18 repeatedly detects the temperature unless the freezing prevention is released even after the drain pump 10 is operated (S1605), and again when the temperature detected by the temperature sensor 18 is equal to or higher than the set temperature.
- the operation of the pump 10 is stopped (S1606, S1608).
- the operation of the drainage pump 10 is stopped when the set time has elapsed.
- the set time May be set within a range such that the drain pump 10 is not overheated in consideration of the heat generation degree of the drain pump 10.
- the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the drain pump 10 is operated again (S1603, S1604).
- freeze protection is released.
- the release of the freeze protection may be conditioned on the user inputting a release command through the freeze prevention selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration.
- 17 is a flowchart illustrating a control method of a washing machine according to a twelfth embodiment of the present invention.
- the temperature sensor 18 is provided in the drain pump 10.
- the temperature is sensed by the temperature sensor 18 (S1702), when the temperature sensed by the temperature sensor 18 is lower than the set temperature operation and stop of the drain pump 10 It is repeated (S1703, S1704). If the freezing protection is not released even after the drain pump 10 is operated, the temperature sensor 18 periodically detects the temperature (S1706), and again when the temperature detected by the temperature sensor 18 is greater than or equal to the set temperature. Operation of the drain pump 10 is stopped (S1707, S1708).
- step S1704 the section in which the drain pump 10 is not operated is referred to as 'stop', and in step S1708, the term 'stop' is different from the method of operation of the drain pump 10 in steps S1704 and S1708. Because there is. That is, in step S1704, while the drain pump 10 is repeatedly operated and stopped for a predetermined time, the drain pump 10 automatically stopped in step B28 returns to step S1705 from step S1709 to step S1706 and step S1707. Wait for it not to work until it is up again.
- step S1707 when the temperature sensed by the temperature sensor 18 is lower than the set temperature, the flow returns to step S1704 again to repeat the operation and stop of the drain pump 10.
- the drain pump 10 when the temperature S1702 detected by the temperature sensor 18 is lower than the set temperature, the drain pump 10 is not operated continuously, but the operation and stop are repeated.
- step S1705 the freeze protection release in step S1705, the condition that the user inputs the release command through the freeze protection selection unit 16, or the condition that the user inputs a control command for washing, rinsing or dehydration Can be.
- FIG. 18 is a flowchart illustrating a control method of a washing machine according to a thirteenth embodiment of the present invention.
- the operation of the drain pump 10 is stopped when the set time has elapsed.
- the set time May be set within a range such that the drain pump 10 is not overheated in consideration of the heat generation degree of the drain pump 10.
- the temperature sensor 18 periodically detects the temperature, and when the detected temperature is lower than the set temperature, the drain pump 10 is operated again (S1803, S1804).
- step S1804 the section in which the drain pump 10 is not operated is referred to as 'stop', and in step S1808, 'stop' is that, in steps S1804 and S1808, there is a difference in the operation method of the drain pump 10. Because there is. That is, in step S1804, the drain pump 10 repeatedly operates and stops for a predetermined time, while the drain pump 10 in which the operation is stopped in step S1808 is returned to step S1802 in step S1809 to be operated again in step S1804. Wait until it doesn't work.
- the release of the freeze protection of step S1809 may be conditional on the user inputting a release command through the freeze protection selection unit 16 or on the condition that the user inputs a control command for washing, rinsing or dehydration. have.
- Embodiments described above are to prevent the washing machine from freezing by using heat generated when the electrical equipment constituting the washing machine is operated.
- the water supply valve 6, drainage, in which freezing by residual water may occur frequently These show that freezing can be prevented by operating the valve 8 or the drain pump 10.
- FIG. 19 is a flowchart illustrating a control method of a washing machine according to a fourteenth embodiment of the present invention.
- the control method of the washing machine according to the fourteenth embodiment of the present invention senses the water level in the outer tub 2 before supplying the washing water (S1901).
- the water level may be detected through the water level sensor 20.
- the controller 14 compares the water level detected in step S1901 with the set water level (S1902), and if the detected water level is lower than the set water level, water is supplied, and then the washing, rinsing, and dehydration are performed. (S1903). In operation S1903, the controller 14 may control the water supply valve 6 to supply water.
- step S1902 if the water level detected in step S1902 is higher than the set water level, the control unit 14 operates the drainage pump 10 to drain the wash water (S1904), after that, the outer tank (2) by the water level sensor 20
- the controller 14 opens the water supply valve 6 to wash the water into the outer tank 2. The water is supplied and the washing, rinsing, and dehydration strokes are performed (S1903).
- the controller 14 detects the temperature through the temperature sensor 18 (S6), and uses the detected temperature as a reference temperature. In comparison with (S1907), if the detected temperature is lower than the reference temperature, the first error message is output through the display unit 22 (S1908), and if the detected temperature is higher than the reference temperature, the display unit 22 The second error message is output through S1909.
- step S1904 if sufficient drainage is not made even after the drainage setting time has elapsed in step S1904 (S1905), freezing may occur in the drain including the drain passage 9, the drain pump 10, and / or the drain valve 8. It may be assumed that one of the cases occurs when the drainage is not performed normally (output of the first error message) or when a failure occurs in the drain pump 10 (output of the second error message).
- Steps S1906 to S1907 are to cover which of the two cases, and when it is determined in step S1907 that the temperature detected in step S1906 is lower than the reference temperature, the washing machine operates in a low temperature environment such as winter.
- the controller 14 allows the first error message to be output through the display unit 22 so that the user can recognize that the freezing has occurred in the drain.
- the reference temperature is a value set by an experiment and will be referred to as a value that can be predicted with considerable accuracy that freezing has occurred when residual water is present in the washing machine.
- the reference temperature is set to a subzero value.
- step S1907 determines that the temperature sensed in step S1906 is higher than the reference temperature, the residual water in the washing machine is very unlikely to freeze. Therefore, the control unit 14 determines that the drainage pump ( It is assumed that the failure of 10), the clogging of the drain passage 9 or the drain valve 8, and the like is caused, and the second error message is output through the display unit 22 so that the user can recognize it.
- the reason for performing the step S1902 before the water supply is made during the operation of the washing machine in the present embodiment, if the washing water is present in the outer tank (2) before the water supply for washing or rinsing, whether to freeze using this In order to determine, it is possible to prevent unnecessary water supply by preventing the water supply of the washing water after the freezing is detected.
- the controller 14 may control to stop the operation of the washing machine together with the output of the corresponding error message in operation S1908 or S1909, and to perform the process remaining by the user's specific operation or by canceling the output of the error message. Do.
- 20 is a flowchart illustrating a control method of a washing machine according to a fifteenth embodiment of the present invention.
- the temperature is sensed by the temperature sensor 18 before water is supplied into the outer tub 2 (S2001).
- the controller 14 compares the temperature T sensed in step S2001 with the reference temperature T1 (S2002).
- the reference temperature S2001 may be set to a value of minus zero.
- step S2001 If it is determined in step S2001 that the detected temperature (T) is lower than the reference temperature (T1), that is, the temperature of the air detected by the temperature sensor 18 is below zero, the washing machine operates under the condition that there is a risk of freezing. Therefore, in the subsequent steps (S2011 to S2018), it is determined whether the washing machine is frozen.
- step S2001 if it is determined that the temperature T detected in step S2001 is higher than the reference temperature T1, it is determined whether the water supply valve 12 or the drain pump 10 operates normally in the following steps S2021 to S2030. This process is to be distinguished from the step S2011 to S2018 to determine whether or not to freeze.
- step S2002 when it is determined in step S2002 that the detected value T of the temperature sensor 18 is lower than the reference temperature T1, a quantity detection S2011 is performed to detect the amount of the cloth injected into the inner tank 3. , The target water level is set according to the detected quantity of water and the water supply (S2012) is performed into the outer tank (2).
- the controller 14 detects that the detected value W of the water level sensor 20 is within the first set time period. It is determined whether or not reached (S2013).
- the first set water level W1 may be set to a value lower than the target water level set according to the amount of dose in step S2011.
- the first set time may be set to a value shorter than the time required for the water level in the outer tank 2 to reach the target water level set in step S2011 under the condition that the water supply valve 12 operates normally.
- the controller 14 determines that the water supply is not normally performed, and stops the operation of the washing machine including the water supply stop (S2017).
- the fifth error message is displayed through the display unit 22 (S2018). The fifth error message is for notifying that the washing machine does not operate normally due to freezing.
- washing is performed (S2014). Washing (S2014) is a process of removing the contamination on the cloth by rotating the pulsator (4) or the inner tank 3, the rotation pattern of the pulsator (4) or inner tank (3) can be set in various ways.
- Drainage (S2015) is a process for discharging the wash water in the outer tank (2) after the completion of the washing (S2014) to the outside is made by the drainage pump (10).
- the control unit 14 operates the drain pump 10 at the time of drainage S2015.
- the water level in the outer tub 2 is detected by the water level sensor 20 while the drainage S2015 is performed, and the controller 14 sets the water level in the outer tub 2 within the second set time after the drainage S2015 is set to the second. It is determined whether the water level is lowered below W2 (S2016).
- step S2016 If it is determined in step S2016 that the detected value W of the water level sensor 20 is higher than the second set water level W2, the drainage by the drain pump 10 is not normally performed, and the cause thereof is drainage. It can be seen that the most likely due to the freezing of the pump 10, the control unit 14 stops the operation of the washing machine, including the drainage stop (S2017), and the fifth error message is displayed through the display unit 22 (S2018).
- step S2016 If it is determined in step S2016 that the detected value W of the water level sensor 20 is lower than the second set water level W2, rinsing (S2003) and internal tank (3) to rinse the cloth by supplying water again into the outer tank (2). Spinning at a high speed to spin the dehydration (S2004) may be performed in sequence.
- steps S2021 to S2030 may be performed.
- Steps S2021 to S2026 may be substantially the same as those of steps S2011 to S2016, except that the detected value W of the water level sensor 20 is lower than the first set water level W1 in step S2023, and the controller 14 may be used.
- Determines that the water supply is not normal stops the operation of the washing machine including the water supply stop (S2027), and the sixth error message is displayed through the display unit 22 (S2028). The sixth error message indicates that the water supply valve 12 is not operating normally.
- step S2026 when it is determined in step S2026 that the detected value W of the water level sensor 20 is higher than the second set water level W2, the drainage is not normally performed, and the controller 14 includes the drainage stop.
- the operation of the washing machine is stopped (S2029), and the seventh error message is displayed through the display unit 22 (S2030).
- the seventh error message indicates that the drain pump 10 is not operating normally.
- the respective error messages are displayed on the display unit 22 in each step of S2018, S2028, and S2030. It will usually be a visual indication, but alternatively, output by a sound output means such as a buzzer, a speaker, or the like will be possible.
- 21 is a flowchart illustrating a control method of a washing machine according to a sixteenth embodiment of the present invention.
- the power supply device 19 described below is a device for applying or cutting off the power supplied to the washing machine 100 (see FIG. 2).
- the user may input a control command such as a desired washing course, washing time, rinsing frequency, dehydration intensity, reservation setting, and the like through the input unit 15.
- a control command such as a desired washing course, washing time, rinsing frequency, dehydration intensity, reservation setting, and the like
- the user may allow the washing machine 100 to detect the quantity of water and determine an appropriate washing method.
- the washing machine 100 performs a washing stroke for removing the time of the cloth, a rinsing stroke for rinsing the cloth, and a dehydration stroke for dewatering the cloth. (S2101, S2102, S2103)
- the washing machine 100 may stop all operations and wait.
- the above standby process may be performed only when the user inputs a standby command through the input unit 15 separately, or may be set to always proceed without user input.
- the input unit 15 is provided with a separate button for inputting a standby command, and when the button is pressed, the washing machine 100 will be described as always performing the waiting process. For example, when the button is pressed once, the controller 14 determines that a standby command is input during the operation of the washing machine 100, and when the button is released, the controller 14 determines that there is no standby command. Can be.
- the controller 14 determines whether a standby command is input through the input unit 15. At this time, the dehydration step includes intermittent dehydration and main dehydration, and when the dehydration is completed, the controller 14 determines whether the waiting command is input (S2104).
- control unit 14 stops the operation of all devices such as the water supply valve 6, the drain pump 10, the driving unit 13, and the like (S2105).
- the waiting may be performed during a preset set time, and the controller 14 determines whether the set time has elapsed while waiting (S2106).
- the set time may be a wall surface of the outer tub 2 or the inner tub 3, or the like. It is a time required for all remaining water to flow down, and is preset and stored by experiment or the like.
- Water flowing down during the set time is collected in the drain passage 9 or the drain pump 10.
- the drain pump 10 may be driven to drain all remaining water. (S2107)
- the water level sensor 20 detects the water level in the outer tub 2.
- the water level sensor 20 detects the water level and transmits the signal to the controller 14 as a signal.
- the controller 14 compares whether the water level detected by the water level sensor 20 is a preset drainage completed water level (S2108).
- the control unit 14 stops drainage after a set time (S2109), where the set level is the detected level of the drainage completion level. Since a small amount of water may remain in the drain pump 10 even after reaching a, it may be set to a time at which a small amount of water may be drained, and the set time may include zero.
- the power supply device 19 is controlled to cut off the power and turn off the power.
- the waiting time for allowing the residual water remaining in the inner tank 3 and the outer tank 2 to flow down before the power is turned off, thereby ensuring that By removing the residue effectively, it is possible to prevent the residue from freezing.
- 22 is a flowchart illustrating a control method of the washing machine according to the seventeenth embodiment of the present invention.
- the controller 14 performs washing, rinsing, and dehydration strokes according to a preset washing course or the like. (S2201, S2202, S2203)
- the controller 14 determines whether a waiting command for removing residual water is input from the user (S2205).
- control unit 14 stops the operation of all devices such as the water supply valve 6, the drain pump 10, the driving unit 13, and the like (S2206).
- the controller 14 determines whether the set time has elapsed while the operation of all the devices is stopped as described above (S2207).
- the controller 14 operates the drainage pump 10 to drain all the residual water collected and flowed downward (S2208).
- the water level sensor 20 While draining the remaining water, the water level sensor 20 detects the water level, and the controller 14 determines whether the detected water level has reached a preset drainage completion level (S2209).
- control unit 14 determines that all the remaining water in the washing machine 100 is drained, and controls the power supply device 19 to cut off the power and turn off the power.
- a waiting step for removing residual water may be performed after the inflation stroke.
- the waiting step is most effectively performed after all the strokes for washing are finished and immediately before the power is turned off.
- the embodiment of the present invention has been described as being limited to performing a waiting process when a standby command is input by the user.
- the present invention is not limited thereto, and the user inputs the standby command once until the user is released again.
- the standby process may be always performed regardless of the number of operations of the washing machine. In the case of a washing machine used in a cryogenic environment, the standby process may be performed immediately before the power is turned off without a separate input by the user.
- the sixteenth to seventeenth embodiments of the present invention can be applied in other embodiments described in the present specification to remove residual water before turning off the washing machine. do.
- the washing machine may be turned off even after any of washing, rinsing, and dehydration is completed.
- FIG. 23 is a graph showing an output voltage change (a) when the water supply valve is thawed and a change in output voltage (b) when the drain pump is thawed.
- the washing machine may determine whether the electronic device is frozen by detecting a change in the output voltage output from the electronic device when power is supplied to various electronic devices constituting the washing machine.
- the voltage detecting unit 18 detects an output voltage output from the electric appliances when power is supplied to various electric appliances constituting the washing machine.
- the voltage detecting unit 17 may be provided to detect the output voltage of the water supply valve 6, the output voltage of the drain valve 8, or the output voltage of the drain pump 10.
- the voltage sensing unit 17 is provided to detect the output voltage of the water supply valve 6, it is determined whether the water supply valve 6 is frozen according to the change amount of the output voltage of the water supply valve 6. have.
- the voltage detecting unit 17 is provided to detect the output voltage of the drain valve 8, it may be determined whether the drain valve 8 is frozen according to the amount of change in the output voltage of the drain valve 8.
- the voltage sensing unit 17 is provided to detect the output voltage of the drain pump 10, it may be determined whether the drain pump 10 is frozen according to the amount of change in the output voltage of the drain pump 10.
- the controller 14 is in electrical communication with the water supply valve 6, the drain valve 8 and the drain pump 10, from the water supply valve 6, the drain valve 8 and the drain pump 10 It may also be possible to detect whether or not to freeze through a change in the output signal applied to the controller 14.
- the washing machine according to an embodiment of the present invention, according to the circuit configuration for applying power to the electrical equipment, such as the water supply valve 6, the drain valve 8 and the drain pump 10, output from the electrical equipment It can be determined whether the freezing is also based on the amount of change in the current.
- the present invention is a water supply valve (6), drain Note that it is also possible to detect the amount of change in the output current of the electrical equipment such as the valve 8 or the drainage pump 10 and determine whether it is frozen.
- the heater 28 may be provided in the outer tub 2 to heat the wash water.
- the heater 28 may be provided in the water supply valve 6, the drain valve 8 or the drain pump 10.
- the water supply valve 6 or the drain valve 8 may be implemented as a solenoid valve.
- FIG. 23 shows the water supply by opening the water supply valve 6, and then operating the drainage pump 10 to drain the water, and the water supply valve 6 is locked and the operation of the drainage pump 10 is below zero.
- the washing machine is left in a chamber set to a temperature for a long time to freeze, the temperature in the chamber is increased, and a predetermined power is applied to the water supply valve 6 and the drain pump 10, and the output voltage of the water supply valve 6 a) and the measurement of the output voltage b of the drain pump 10 are shown.
- Vvalve is an output voltage value when the water supply valve 6 is frozen
- Vvalve_ref is an output voltage value when thawing of the water supply valve 6 is completed
- ⁇ Vvalve is a difference value between Vvalve and Vvalve_ref.
- the output voltage of the drain pump 10 drops sharply in the vicinity of T2 because the wash water remaining in the drain pump 10 near T2 melts. That is, thawing of the drain pump 10 is performed near T2.
- Vpump is an output voltage value when the drain pump 10 is frozen
- Vpump_ref is an output voltage value when thawing of the drain pump 10 is completed
- ⁇ Vpump is a difference value between Vpump and Vpump_ref.
- the reason why the thawing time T2 of the drain pump 10 is longer than the thawing time T1 of the water supply valve 6 is that the amount of wash water remaining in the drain pump 10 is relatively higher than that of the water supply valve 6. Because there are many.
- drain valve 8 will also show a change in output voltage in a form similar to that shown in FIG. 23
- the present invention detects the amount of change in the output voltage of the electrical equipment when a predetermined power is applied to the various electrical appliances that make up the washing machine, such as the water supply valve (6), the drain valve (8) and / or the drainage pump (10), If it detects that the output voltage has decreased by more than a predetermined value, it defrosts.
- FIG. 24 is a flowchart illustrating a control method of a washing machine according to an eighteenth embodiment of the present invention. This will be described in more detail with reference to FIG. 24.
- the freezing of the washing machine is detected, and if the freezing is detected, thawing is performed to prevent freezing of the washing machine.
- the freezing prevention can be performed in two ways as follows.
- freezing prevention is automatically started when washing, rinsing or dehydration is not performed and the washing machine is waiting. There is an advantage that the user does not need to take additional measures to prevent freezing of the washing machine.
- the washing machine is provided with a freezing prevention selection unit 16 to select the freeze protection, freeze protection is performed only when the user selects through the freeze protection selection unit 16 Will be.
- the flow chart shown in FIG. 24 may be equally applicable to freezing prevention of any of the water supply valve 6, the drain valve 8 and the drain pump 10.
- the water supply valve 6 will be replaced to avoid duplication of explanation. An example will be described.
- a predetermined power is supplied to the water supply valve 6 and the output voltage is sensed (S2401).
- the output voltage V of the water supply valve 6 may be sensed by the voltage sensing unit 17.
- the display unit 22 When it is detected that the output voltage V of the water supply valve 6 decreases by a predetermined value ( ⁇ V) or more, the display unit 22 displays a freezing notification indicating that the washing machine is frozen (S2402, S2403).
- the display unit 22 may be configured to visually display the freezing notification display or to display the freezing notification.
- An example of the former may include a case in which the display unit 22 is an LCD, an LED, a diode, or the like.
- An example of the latter may include a case in which the display unit 22 is a buzzer or a speaker.
- step S2402 if the amount of change in the output voltage (V) is smaller than the predetermined value ( ⁇ V) in step S2402 and returns to step S1 to detect the output voltage (V).
- the thawing step is performed (S2404).
- the thawing step (S2404) may be to apply heat to the water supply valve 6 by operating the heater 28, or may use self-heating when the water supply valve 22 is operated.
- the heater 28 or the water supply valve 22 may be repeatedly operated and stopped at a predetermined cycle.
- the heater 28 is for heating the wash water as described above (in this case, the heater 28 is preferably provided in the outer tank 2), or is provided in the water supply valve 6
- the drain valve 8 or the drain pump 10 may be provided.
- the heater 28 is preferably provided in the feed valve (6).
- the present embodiment may be equally applicable to the freezing prevention of the drain valve 8 or the drain pump 10, the heater 28 is to perform the thawing of the drain valve (8) It is preferable that the drain valve 8 is provided, and in order to perform thawing of the drain pump 10, the heater 28 is preferably provided in the drain pump 10.
- the output voltage of the water supply valve 6 is again sensed (S2405), and when the increase amount of the output voltage V is detected to be greater than or equal to the predetermined value ( ⁇ V), the operation of the heater 28 is stopped, The freeze notification display is released (S2406, S2407). In operation S2405, the output voltage V of the water supply valve 6 may be detected by the voltage sensing unit 17.
- step S2406 if the increase amount of the output voltage V is within the predetermined value? V in step S2406, the flow returns to step S2405 to detect the output voltage V.
- 25 is a block diagram illustrating a control flow of a freeze management system according to an embodiment of the present invention.
- a freezing management system for a washing machine includes a washing machine 100 capable of wired / wireless communication and a remote control device capable of transmitting and receiving a signal at a short distance or long distance from the washing machine 100. And a communication medium for transmitting a signal between the washing machine 100 and the remote controller 200.
- the washing machine 100 may basically perform an operation of washing the cloth, and additionally, may detect the freezing of the washing water therein and perform an operation for preventing freezing.
- the washing machine 100 includes a freezing detector 110 for detecting whether the washing water is frozen, and a controller 14 for transmitting a signal detected by the freezing detector 110 to the remote controller 200.
- the washing machine 100 further includes a freezing prevention unit 120 to prevent freezing of the washing water, and the control unit 14 freezes according to the freezing prevention signal received from the remote controller 200 to the washing machine 100.
- the operation of the prevention unit 120 may be controlled.
- the washing machine 100 may be provided with only one of the freezing detection unit 110 and the freezing prevention unit 120, and of course, both may be provided. In the present embodiment, the washing machine 100 will be described as being limited to having both the freezing detection unit 110 and the freezing prevention unit 120.
- the freezing detection unit 110 measures the temperature in the washing machine 100 or checks the degree of supply / drainage and transmits the information to the control unit 14, whereby the control unit 14 may detect the freezing.
- the freezing detection unit 110 may include a temperature sensor 18 measuring air temperature or washing water temperature in the washing machine 100, and a water level sensor 20 detecting a water level in the washing machine 100.
- the washing machine 100 may include an outer tub 2 containing wash water, and the temperature sensor 18 may be disposed in the outer tub 2.
- the temperature sensor 20 may detect the temperature of the wash water, and in other cases, the air in the washing machine 100 may be It can detect the temperature of.
- the washing machine 100 further includes an input unit 15 that receives various commands for overall operation of the washing machine 100 from a user.
- the input unit 15 may of course be configured to allow a user to directly input a request command for freezing detection or freezing prevention.
- the freezing prevention unit 120 may prevent freezing of the washing water by heating the air or the washing water inside the washing machine by using the heater 28 or other electrical equipment.
- the heater 28 may be disposed under the outer tub 2 to heat the wash water, and may be disposed on various components constituting the washing machine 100 and heated to prevent freezing of the various components.
- the washing machine 100 may include a server (not shown) for transmitting and receiving control information through a telephone line or an internet network.
- the remote control apparatus 200 may include a mobile phone, a computer, a telephone, and the like.
- the remote control apparatus 200 may receive and display whether the washing water sensed by the washing machine 100 is frozen or transmit a freezing prevention signal to the washing machine 100.
- the remote control apparatus 200 may include an input unit 210 for inputting a user's request command for detecting whether the wash water is frozen, a display unit 220 for visually or audibly displaying whether the wash water is frozen, and an input unit 210. It may include a microcomputer 230 for transmitting a command to the communication network 150 to be described later as a signal or to display the signal received from the communication network 150 on the display unit 220.
- the communication medium refers to a communication network 150 that performs data communication between the washing machine 100 and the remote controller 200.
- the communication network 150 may be a power line communication medium, or a radio frequency communication medium may be used.
- the communication network 150 allows the washing machine 100 and the remote control apparatus 200 to transmit and receive information appropriately even when the remote control apparatus 200 is located at a short distance as well as a long distance.
- 26 is a flowchart showing a first embodiment of a freezing management method of the washing machine.
- the user may want to detect whether the washing machine 100 is frozen in the home.
- the user may input a freeze detection command through the input unit 210 of the remote control apparatus 200 (S2601).
- the microcomputer of the remote controller 200 converts the signal into a signal and transmits the signal to the communication network 150.
- the communication network 150 transmits a freezing detection signal to the washing machine 100.
- the control unit 14 of the washing machine 100 may determine whether the washing water in the washing machine is frozen by using the freezing detection unit 110 (S2603).
- the method of detecting whether the washing water is frozen may be variously applied. have.
- the temperature sensed by the temperature sensor 18 when the temperature sensed by the temperature sensor 18 is below the preset temperature using the temperature sensor 18, it may be determined that the wash water is frozen.
- water supply is started to the predetermined water level through the water supply valve 6, and then the drainage pump 10 is operated to perform drainage.
- the water level sensor 20 detects a water level change while the water is being drained. Even though the drainage proceeds for a predetermined time, when the drainage is not sufficiently performed, it may be determined that freezing occurs in the drainage assembly including the drainage pump 10 so that drainage was not normally performed. (S2603)
- the control unit 14 determines whether the freezing in the washing machine 100, and transmits the freezing determination signal according to the remote control device 200 using the communication network 150. (S2604)
- the microcomputer 230 of the remote control apparatus 200 may display the frozen determination signal received through the communication network 150 through the display unit 220 (S2605).
- the user can know whether the washing machine 100 in the home is frozen even from a long distance. If it is indicated that the freezing has been performed, the user can quickly take a corresponding action, thereby reducing component failures such as the drainage assembly.
- FIG. 27 is a flowchart illustrating a second embodiment of a freezing management method of the washing machine.
- the user may want to detect whether the freezing in the washing machine at home is performed.
- the user may input a freeze detection command through the input unit 210 of the remote control apparatus 200 (S2701).
- the microcomputer of the remote controller 200 converts the signal into a signal and transmits the signal to the communication network 150.
- the communication network 150 transmits a freezing detection signal to the washing machine 100.
- the control unit 14 of the washing machine 100 may determine whether the washing water in the washing machine is frozen by using the freezing detection unit 110 (S2703).
- the freezing detection method using the freezing detection unit 110 is described above. Since it is the same as the first embodiment, description thereof will be omitted.
- the controller 14 determines whether the washing machine 100 is frozen, and transmits the freezing determination signal to the remote controller 200 using the communication network 150 (S2704).
- the microcomputer 230 of the remote control apparatus 200 may display the freezing determination signal received through the communication network 150 through the display unit 220 (S2705).
- the user may input a freeze vibration prevention signal through the input unit 210 (S2706).
- the microcomputer 230 transmits the freezing prevention signal to the washing machine 100 through the communication network 150 (S2707).
- the washing machine 100 receiving the freeze protection signal may perform a freeze prevention operation through the freeze protection unit 120.
- the operation for preventing freezing may be variously applied.
- freezing may be prevented by heating the washing water using the heater 28 to increase the temperature in the washing machine 100.
- the operation of the heater 28 may be performed until the temperature sensed by the temperature sensor reaches a preset temperature, and may be performed until the set time has elapsed from the time when the operation of the heater 28 starts.
- control unit 14 may transmit the operation completion signal to the remote control apparatus 200 through the communication network 150.
- the remote control apparatus 200 may display the received operation completion signal through the display unit 220. (S2710)
- the user recognizes the content displayed on the display unit 220 and can go out or travel comfortably.
- FIG. 28 is a flowchart illustrating a third embodiment of a freezing management method of the washing machine.
- the microcomputer 230 transmits a freezing prevention signal to the washing machine 100 through the communication network 150 (S2802).
- the control unit 14 of the washing machine 100 receiving the freezing prevention signal performs the freezing prevention operation by using the freezing prevention unit 120 (S2803).
- the control unit 14 transmits the operation completion signal to the remote control device 200. (S2804)
- the remote control apparatus 200 may display the received operation completion signal through the display unit 220 (S2805).
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Claims (19)
- 급수밸브, 배수밸브 및 배수펌프 중 적어도 하나를 구비한 세탁기의 제어방법에 있어서,In the control method of the washing machine having at least one of the water supply valve, the drain valve and the drain pump,상기 세탁기에 구비된 상기 급수밸브, 배수밸브 또는 배수펌프에 구비된 온도센서를 통해 온도를 감지하는 (a)단계; 및(A) sensing a temperature through a temperature sensor provided in the water supply valve, the drain valve or the drain pump provided in the washing machine; And상기 (a)단계에서 감지된 온도가 설정온도보다 낮을 시, 상기 온도센서가 구비된 상기 급수밸브, 배수밸브 또는 배수펌프를 작동시키는 (b)단계를 포함하는 세탁기의 제어방법.And (b) operating the water supply valve, the drain valve or the drain pump equipped with the temperature sensor when the temperature sensed in the step (a) is lower than the set temperature.
- 제 1 항에 있어서,The method of claim 1,상기 (b)단계는,In step (b),상기 급수밸브, 배수밸브 또는 배수펌프가 일정 시간 주기로 작동 및 중지가 반복되도록 제어하는 단계를 포함하는 세탁기의 제어방법.And controlling the water supply valve, the drain valve, or the drain pump to repeat operation and stop at a predetermined time period.
- 제 1 항에 있어서,The method of claim 1,세탁, 헹굼 또는 탈수가 수행되지 않고 세탁기가 대기중인 상태에서는 제 1 전원 공급부를 통해 상기 온도센서에 전원을 공급하고,When washing, rinsing, or dehydration is not performed and the washing machine is waiting, power is supplied to the temperature sensor through a first power supply unit.상기 급수밸브, 배수밸브 또는 배수펌프의 작동 시에는 제 2 전원 공급부를 통해 전원을 공급하는 세탁기의 제어방법.Control method of the washing machine for supplying power through the second power supply when the water supply valve, drain valve or drain pump.
- 세탁수를 급수하기 전에, 외조 내의 수위가 설정수위 이상인 경우에 배수를 수행하는 (a)단계;(A) performing draining when the water level in the outer tank is equal to or higher than the set level before supplying the washing water;상기 (a)단계에서 배수되는데 걸리는 시간이 설정시간 이상이면 세탁기 내부의 온도를 기준온도와 비교하는 (b)단계; 및(B) comparing the temperature inside the washing machine with a reference temperature when the time taken for draining in the step (a) is greater than or equal to a set time; And상기 (b)단계에서 세탁기 내부의 온도가 상기 기준온도보다 낮으면 제 1 에러 메세지를 출력하는 (c)단계를 포함하는 세탁기의 제어방법.And (c) outputting a first error message when the temperature inside the washing machine is lower than the reference temperature in the step (b).
- 제 4 항에 있어서,The method of claim 4, wherein상기 (a)단계는,In step (a),상기 외조 내의 수위가, 세탁기의 행정이 개시되기 전에 오버 플로우가 발생하였는지 여부를 판단하기 위해 설정된 제 1 설정수위보다 높은 경우 배수를 수행하는 (a-1)단계를 포함하는 세탁기의 제어방법.And (a-1) performing draining when the water level in the outer tank is higher than the first set water level set to determine whether an overflow occurs before the stroke of the washing machine starts.
- 제 5 항에 있어서,The method of claim 5,상기 (b)단계는,In step (b),상기 (a-1)단계에서 제 1 배수설정시간 경과 시까지 상기 외조 내의 수위가 제 2 설정수위에 도달하지 못한 경우, 세탁기 내부의 온도를 제 1 기준온도와 비교하는 (b-1)단계를 포함하고, (B-1) comparing the temperature inside the washing machine with the first reference temperature when the water level in the outer tub does not reach the second set level until the first drainage set time elapses in the step (a-1). Including,상기 (c)단계는,Step (c) is,상기 (b-1)단계에서 세탁기 내부의 온도가 상기 제 1 기준온도보다 낮은 경우 상기 제 1 에러 메세지를 출력하는 세탁기의 제어방법.And controlling the washing machine to output the first error message when the temperature inside the washing machine is lower than the first reference temperature in the step (b-1).
- 제 5 항에 있어서,The method of claim 5,상기 (a-1)단계는,Step (a-1),상기 외조 내의 수위가 상기 제 1 설정수위보다 높은 경우 제 2 에러 메세지를 출력하는 단계; 및Outputting a second error message if the water level in the outer tank is higher than the first set water level; And제 1 배수설정시간 경과 전에 상기 외조 내의 수위가 제 2 설정수위에 도달한 경우 상기 제 2 에러 메세지의 출력을 중단하는 단계를 더 포함하는 세탁기의 제어방법.And stopping the output of the second error message when the water level in the outer tub reaches the second set level before the first drainage set time has elapsed.
- 제 7 항에 있어서,The method of claim 7, wherein상기 제 2 에러 메세지는,The second error message is상기 외조에 오버플로우가 발생하였음을 알리는 메세지인 세탁기의 제어방법.The control method of the washing machine is a message indicating that the overflow occurred in the outer tank.
- 제 6 항에 있어서,The method of claim 6,상기 제 1 에러 메세지는,The first error message is상기 외조 내의 세탁기를 외부로 배수하는 배수부가 동결되었음을 알리는 메세지인 세탁기의 제어방법.The control method of the washing machine which is a message indicating that the drainage portion for draining the washing machine in the outer tank to the outside.
- 외조 내로 세탁수를 급수하기 전에, 상기 외조 내의 수위가 오버 플로우가 발생하였는지 여부를 판단하기 위해 설정된 제 1 설정수위보다 높은 경우 배수를 수행하는 (a)단계;(A) performing draining when the water level in the outer tank is higher than the first set water level set to determine whether an overflow has occurred before water is supplied into the outer tank;상기 (a)단계 이후 상기 외조 내의 수위가 상기 제 1 설정수위보다 낮게 설정된 제 2 설정수위보다 높은 경우 배수를 수행하는 (b)단계;(B) performing draining when the water level in the outer tank is higher than the second set water level lower than the first set water level after the step (a);상기 (b)단계에서 소정 수위까지 배수하는데 걸리는 시간이 소정의 배수설정시간보다 크면 세탁기 내부의 온도를 소정의 기준온도와 비교하는 (c)단계; 및(C) comparing the temperature inside the washing machine with a predetermined reference temperature when the time taken for draining up to a predetermined water level in step (b) is greater than a predetermined drainage setting time; And상기 (c)단계에서 세탁기 내부의 온도가 상기 소정의 기준온도보다 낮으면 제 1 에러 메세지를 출력하는 (d)단계를 포함하는 세탁기의 제어방법.And (d) outputting a first error message if the temperature inside the washing machine is lower than the predetermined reference temperature in the step (c).
- 제 10 항에 있어서,The method of claim 10,상기 (c)단계에서,In the step (c),세탁기 내부의 온도가 상기 소정의 기준온도보다 높으면 제 3 에러 메세지를 출력하는 세탁기의 제어방법.And a third error message if the temperature inside the washing machine is higher than the predetermined reference temperature.
- 외조 내로 급수가 이루어지기 전에 온도를 감지하는 (a)단계;(A) detecting a temperature before water is supplied into the outer tank;상기 외조 내로 급수를 하는 (b)단계;(B) supplying water into the tub;상기 외조 내의 수위를 감지하는 (c)단계; 및(C) detecting the water level in the outer tank; And상기 (a)단계에서 감지된 온도가 기준온도보다 낮고, 제 1 설정시간 내에 상기 외조 내의 수위가 제 1 설정수위에 이르지 못하는 경우 제 5 에러메세지를 출력하는 (d)단계를 포함하는 세탁기의 제어방법.And (d) outputting a fifth error message when the temperature sensed in the step (a) is lower than the reference temperature and the water level in the outer tank does not reach the first set level within the first set time. Way.
- 제 12 항에 있어서,The method of claim 12,상기 기준온도는 영하의 값으로 설정된 것인 세탁기의 제어방법.The reference temperature is a control method of a washing machine is set to a value of minus zero.
- 제 12 항에 있어서,The method of claim 12,상기 (d)단계는,In step (d),세탁기의 작동을 정지시키는 단계를 포함하는 세탁기의 제어방법.The control method of the washing machine comprising the step of stopping the operation of the washing machine.
- 제 12 항에 있어서,The method of claim 12,상기 (a)단계에서 감지된 온도가 상기 기준온도보다 높고, 상기 제 1 설정시간 내에 상기 외조 내의 수위가 제 1 설정수위에 이르지 못하는 경우 제 6 에러 메시지를 출력하는 단계를 더 포함하는 세탁기의 제어방법.And outputting a sixth error message when the temperature sensed in the step (a) is higher than the reference temperature and the water level in the outer tub within the first set time does not reach the first set water level. Way.
- 제 12 항에 있어서,The method of claim 12,상기 (b)단계 이전에 세탁조 내로 투입된 포의 양을 감지하는 (e)단계를 더 포함하고,(E) detecting the amount of the cloth introduced into the washing tank before the step (b);상기 (e)단계에서 감지된 포량에 따라 상기 (b)단계에서 이루어지는 급수의 목표수위가 설정되고,The target water level of the water supply made in the step (b) is set according to the detected quantity in the step (e),상기 (d) 단계에서의 제 1 설정시간은,The first setting time in the step (d),상기 (b)단계에서 정상적으로 급수가 이루어지는 경우를 기준으로 상기 외조 내의 수위가 상기 목표수위에 도달하는데 걸리는 시간보다 짧은 값으로 설정된 세탁기의 제어방법.The control method of the washing machine is set to a value shorter than the time it takes for the water level in the outer tank to reach the target water level on the basis of the case where the normal water supply in step (b).
- 제 16 항에 있어서,The method of claim 16,상기 외조 내의 수위가 상기 목표수위에 도달하면 급수를 중단하고 세탁을 수행하는 (f)단계;(F) stopping water supply and performing washing when the water level in the outer tank reaches the target water level;상기 외조 내의 세탁수를 배수시키는 (g)단계;(G) draining the washing water in the outer tub;상기 배수가 수행되는 중에 외조 내의 수위를 감지하는 (h)단계; 및(H) detecting the water level in the outer tank while the drainage is performed; And상기 (h)단계에서 감지된 수위가 제 2 설정시간 내에 제 2 설정수위 이하에 도달하지 않으면, 상기 제 5 에러 메시지를 출력하는 (i)단계를 더 포함하는 세탁기의 제어방법.And (i) outputting the fifth error message if the water level detected in the step (h) does not reach below the second set water level within a second set time.
- 제 17 항에 있어서,The method of claim 17,상기 (h)단계에서 감지된 수위가 상기 제 2 설정시간 내에 상기 제 2 설정수위 이하에 도달하면, 제 7 에러 메세지를 출력하는 단계를 더 포함하는 세탁기의 제어방법.And outputting a seventh error message when the water level detected in the step (h) reaches or below the second set water level within the second set time.
- 제 1 항에 있어서,The method of claim 1,전원을 오프하기 전에 설정시간동안 작동을 멈추고 대기하는 대기단계와;A standby step of stopping operation and waiting for a set time before turning off the power;상기 설정시간이 경과하면, 배수를 수행하여 잔수를 제거하는 배수단계를 더 포함하는 세탁기의 제어방법.The control method of the washing machine further comprises a drainage step of removing the residual water by performing drainage, if the set time elapses.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/807,939 US20130239336A1 (en) | 2010-07-06 | 2011-07-06 | Method For Controlling The Operation Of A Washing Machine, And System For Controlling Freezes For A Washing Machine |
RU2013104884/12A RU2530422C1 (en) | 2010-07-06 | 2011-07-06 | Method of operating washing machine (versions) |
EP11803800.9A EP2592181B1 (en) | 2010-07-06 | 2011-07-06 | Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine |
AU2011274716A AU2011274716B2 (en) | 2010-07-06 | 2011-07-06 | Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine |
BR112013000153A BR112013000153A2 (en) | 2010-07-06 | 2011-07-06 | method for controlling the operation of a washing machine including at least one water supply pump, a drain valve and a drain pump |
CN201180035580.2A CN103025945B (en) | 2010-07-06 | 2011-07-06 | The control method of washing machine and the freezing management system of washing machine |
Applications Claiming Priority (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100065049A KR101689719B1 (en) | 2010-07-06 | 2010-07-06 | A control method of the washing machine |
KR10-2010-0065049 | 2010-07-06 | ||
KR1020100073609A KR101711836B1 (en) | 2010-07-29 | 2010-07-29 | A freezing control system of washing machin |
KR10-2010-0073613 | 2010-07-29 | ||
KR10-2010-0073609 | 2010-07-29 | ||
KR1020100073613A KR20120011639A (en) | 2010-07-29 | 2010-07-29 | A laundry treatment machine and the control method of the same |
KR10-2010-0074238 | 2010-07-30 | ||
KR10-2010-0074242 | 2010-07-30 | ||
KR10-2010-0074239 | 2010-07-30 | ||
KR1020100074239A KR101774808B1 (en) | 2010-07-30 | 2010-07-30 | A washing machine |
KR1020100074238A KR20120012213A (en) | 2010-07-30 | 2010-07-30 | A controlling method of the washing machine |
KR1020100074242A KR20120012217A (en) | 2010-07-30 | 2010-07-30 | A washing machine and controlling method of the washing machine |
KR10-2011-0066987 | 2011-07-06 | ||
KR1020110066987A KR20130005531A (en) | 2011-07-06 | 2011-07-06 | Control method of washing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012005514A2 true WO2012005514A2 (en) | 2012-01-12 |
WO2012005514A3 WO2012005514A3 (en) | 2012-05-31 |
Family
ID=45441654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2011/004950 WO2012005514A2 (en) | 2010-07-06 | 2011-07-06 | Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine |
Country Status (7)
Country | Link |
---|---|
US (1) | US20130239336A1 (en) |
EP (1) | EP2592181B1 (en) |
CN (1) | CN103025945B (en) |
AU (1) | AU2011274716B2 (en) |
BR (1) | BR112013000153A2 (en) |
RU (1) | RU2530422C1 (en) |
WO (1) | WO2012005514A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103866527A (en) * | 2012-12-10 | 2014-06-18 | 东部大宇电子株式会社 | Freeze protection method for washing machine |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140084950A (en) * | 2012-12-27 | 2014-07-07 | 동부대우전자 주식회사 | Dry device and method for drum type washer |
KR102148200B1 (en) * | 2013-09-04 | 2020-08-27 | 삼성전자주식회사 | Washing apparatus and controlling method thereof |
KR101698792B1 (en) * | 2015-06-03 | 2017-01-23 | 엘지전자 주식회사 | Home appliance |
US10581274B2 (en) | 2015-06-03 | 2020-03-03 | Lg Electronics Inc. | Home appliance |
US20170327995A1 (en) * | 2016-05-13 | 2017-11-16 | General Electric Company | Hydraulically Powered Lid Lock Assembly |
KR102466662B1 (en) * | 2016-06-14 | 2022-11-14 | 엘지전자 주식회사 | Washing machine and method for contolling the same |
KR102488034B1 (en) * | 2018-02-13 | 2023-01-13 | 엘지전자 주식회사 | Control method for laundry treating apparatus |
JP7289045B2 (en) * | 2018-02-27 | 2023-06-09 | パナソニックIpマネジメント株式会社 | washing machine |
US10995443B2 (en) * | 2018-03-12 | 2021-05-04 | Clarence Wheeler | Washer/dryer appliance comprising weight sensing technology |
KR102102654B1 (en) * | 2018-04-18 | 2020-05-29 | 엘지전자 주식회사 | A lAundry treAting AppArAtus And A Control method of the sAme |
US10465324B1 (en) * | 2018-05-31 | 2019-11-05 | Haier Us Appliance Solutions, Inc. | Method for detecting a low water level in a washing machine appliance |
KR20190116189A (en) * | 2019-09-23 | 2019-10-14 | 엘지전자 주식회사 | Apparatus and method for predicting freezing of washing machine |
KR20210051962A (en) * | 2019-10-31 | 2021-05-10 | 엘지전자 주식회사 | Laundry treatment machine and laundry treatment system including the same |
US12000081B2 (en) | 2021-03-18 | 2024-06-04 | Haier Us Appliance Solutions, Inc. | Travel cycle for a condenser or heat pump dryer appliance |
CN114018310B (en) * | 2021-09-17 | 2023-11-03 | 合肥美的洗衣机有限公司 | Method and device for detecting icing of sewer, electronic equipment and storage medium |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61280888A (en) * | 1985-05-20 | 1986-12-11 | 三洋電機株式会社 | Washing machine |
JPH0316549A (en) * | 1989-06-14 | 1991-01-24 | Matsushita Electric Ind Co Ltd | Device for preventing freezing of water remaining in dish washer |
KR100707355B1 (en) * | 1999-08-18 | 2007-04-13 | 삼성전자주식회사 | Method of controlling supply water for a washing machine |
KR20050118896A (en) * | 2004-06-15 | 2005-12-20 | 삼성전자주식회사 | Drain pump & drum type washing machine having the same |
KR101243967B1 (en) * | 2006-02-15 | 2013-03-14 | 엘지전자 주식회사 | Washing machine and its operating method |
KR100713949B1 (en) * | 2006-04-21 | 2007-05-07 | 삼성전자주식회사 | Washing machine and control method thereof |
KR100762266B1 (en) * | 2006-05-03 | 2007-10-01 | 삼성전자주식회사 | Washing machine and method for preventing freezing thereof |
CN1924169A (en) * | 2006-05-19 | 2007-03-07 | 南京乐金熊猫电器有限公司 | Frost-cracking proof structure of barrel washing machine steam generator |
KR101291271B1 (en) * | 2006-07-27 | 2013-07-30 | 엘지전자 주식회사 | Ice melting method drum type washing machine |
KR101424556B1 (en) * | 2007-03-17 | 2014-07-31 | 삼성전자 주식회사 | Washing machine and control method of thereof |
KR101609681B1 (en) * | 2009-06-30 | 2016-04-20 | 삼성전자 주식회사 | Washing machine and method to control thereof |
-
2011
- 2011-07-06 EP EP11803800.9A patent/EP2592181B1/en active Active
- 2011-07-06 US US13/807,939 patent/US20130239336A1/en not_active Abandoned
- 2011-07-06 WO PCT/KR2011/004950 patent/WO2012005514A2/en active Application Filing
- 2011-07-06 CN CN201180035580.2A patent/CN103025945B/en not_active Expired - Fee Related
- 2011-07-06 BR BR112013000153A patent/BR112013000153A2/en not_active IP Right Cessation
- 2011-07-06 AU AU2011274716A patent/AU2011274716B2/en not_active Ceased
- 2011-07-06 RU RU2013104884/12A patent/RU2530422C1/en not_active IP Right Cessation
Non-Patent Citations (2)
Title |
---|
None |
See also references of EP2592181A4 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103866527A (en) * | 2012-12-10 | 2014-06-18 | 东部大宇电子株式会社 | Freeze protection method for washing machine |
EP2746452A1 (en) * | 2012-12-10 | 2014-06-25 | Dongbu Daewoo Electronics Corporation | Freeze protection method for washing machine |
Also Published As
Publication number | Publication date |
---|---|
CN103025945A (en) | 2013-04-03 |
EP2592181A2 (en) | 2013-05-15 |
US20130239336A1 (en) | 2013-09-19 |
AU2011274716A1 (en) | 2013-02-28 |
RU2530422C1 (en) | 2014-10-10 |
RU2013104884A (en) | 2014-08-20 |
BR112013000153A2 (en) | 2016-05-24 |
EP2592181A4 (en) | 2017-05-24 |
WO2012005514A3 (en) | 2012-05-31 |
AU2011274716B2 (en) | 2014-11-20 |
CN103025945B (en) | 2015-09-02 |
EP2592181B1 (en) | 2020-05-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2012005514A2 (en) | Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine | |
WO2015133734A1 (en) | Washing machine and method for controlling same | |
WO2012093897A2 (en) | Laundry treating apparatus and remote controller | |
WO2016017925A1 (en) | Clothes treating system and control method therefor | |
WO2013027939A1 (en) | Online system and method for using the same | |
WO2013015655A2 (en) | Laundry machine and online system including the same | |
WO2012005511A2 (en) | Washing machine and method for controlling the same | |
WO2013015656A2 (en) | Laundry machine and online system including the same | |
EP3170134A1 (en) | Home appliance and control method for the same | |
WO2019172497A1 (en) | Refrigerator | |
WO2017010760A1 (en) | Hub apparatus and method for providing service thereof | |
AU2018210637B2 (en) | Dryer and method for controlling the same | |
WO2017171215A1 (en) | Lock and home appliance having the same | |
WO2019031885A1 (en) | Laundry treatment apparatus and method of controlling the same | |
AU2018257543B2 (en) | Washing machine and control method thereof | |
WO2019031886A1 (en) | Laundry treatment apparatus and method of controlling the same | |
WO2022182113A1 (en) | Clothing processing device and control method of clothing processing device | |
WO2018199433A1 (en) | Washing machine and control method thereof | |
WO2020226340A1 (en) | Water dispensing apparatus and control method therefor | |
WO2024034793A1 (en) | Filter apparatus and clothes treating apparatus having same | |
WO2021040469A1 (en) | Detergent storage container and method for manufacturing the same | |
WO2016159539A1 (en) | Washing machine and method for controlling washing machine | |
WO2020153600A1 (en) | Server, terminal device, and method for home appliance management thereby | |
WO2019164155A1 (en) | Washing machine and control method therefor | |
WO2019045440A1 (en) | Server, home appliance, and method for providing information therein |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201180035580.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11803800 Country of ref document: EP Kind code of ref document: A2 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011803800 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2013104884 Country of ref document: RU Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2011274716 Country of ref document: AU Date of ref document: 20110706 Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13807939 Country of ref document: US |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112013000153 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112013000153 Country of ref document: BR Kind code of ref document: A2 Effective date: 20130103 |