KR101093641B1 - Controller for generating washing water in drum type washer - Google Patents

Abstract

The water supply control apparatus of the drum washing machine having a heater for heating the washing water to a predetermined temperature includes a quantity sensor for detecting the amount of laundry to be put into the drum of the drum washing machine; A level sensor for linearly measuring the amount of wash water loaded into the reservoir of the drum washing machine; A data memory for storing the amount of water supply data, the data of the amount of water to be absorbed into the laundry, to correspond to the detection result for each unit of the quantity sensor; And a controller configured to perform a water supply stroke so as to correspond to any of the water supply information selected based on the detection result of the quantity detecting sensor. By such a configuration, the present invention sets the primary water supply amount according to the quantity of water, and after washing the laundry water corresponding to the primary water supply amount for a predetermined time to be absorbed into the laundry, and then supplying the washing water as much as the secondary water supply amount, Washing water is supplied in an appropriate amount to cope with the amount of waste to reduce unnecessary waste of water, there is an effect that can prevent the environmental pollution due to excessive wash water in advance.

Drum washing machine, water supply, water supply control, water supply administration, heating administration, laundry administration, water level

Description

Water supply controller of drum washing machine {CONTROLLER FOR GENERATING WASHING WATER IN DRUM TYPE WASHER}

1 is a view showing the structure of a general drum washing machine.

2 is a configuration diagram for explaining the water supply control of the drum washing machine according to the present invention.

3 is a flowchart for explaining the main operation of the present invention.

<Explanation of symbols for main drawings>

201: controller 203: data memory

205: driver 207: key input means

209 display means 211: quantity detection sensor

213: water level sensor 215: washing driving motor

217: heater

The present invention relates to washing control of a drum washing machine, and more particularly, to maintain an optimal amount of washing water introduced into a water storage tank to suppress waste water washing and to reduce environmental pollution. It relates to a control device.

In general, the drum washing machine is configured to rotate the cylindrical drum from the inside of the washing tank, while washing is performed by dropping the laundry from the upper part of the drum to the lower part of the drum, and washing, rinsing, dehydration, drying It is made automatically and can be divided into laundered laundry, standard laundries and wool laundries according to the laundry to be washed, and the damage caused by the twisting of laundry or the amount of washing water used is relatively less than that of a pulsator-type washing machine. Has the advantage.

1 is a perspective view showing a drum washing machine having a conventional structure. As shown in FIG. 1, a drum washing machine 111 is installed horizontally from the inside of the trauma 110 illustrated as a virtual line, and a drum 112 having a function of a washing tank is rotatably installed therein. The lower portion of the reservoir 111, the drive motor 113 for rotating the drum 112 is installed.

In addition, the upper portion of the reservoir 111 is provided with a water supply port 114 for supplying wash water from the outside, and a portion of the water supply port 114 is supplied to the inside of the water reservoir 111 via the detergent container 115. . In addition, a filter 116, a drain pump 117, and a drain hose 118 are respectively connected to the lower end of the water storage tank 111, and a door 119 is installed at the front of the drum 112. have.

Drum washing machine 100 having a structure as described above is typically provided with a drying function to spray hot air into the drum 112 in accordance with the operation of the heater and the blower fan after the end of the washing according to the repeated washing and dehydration administration Allow the laundry to dry.

On the other hand, the drum washing machine 100 has a position higher than the upper end of the door 119 when the water tank 111 is full, so that the combined portion of the door 119 and the water tank 111 to prevent leakage of the wash water. Including a high degree of airtightness for the joint surface of the exposed portion, including the outside, when the door 119 is closed, the air flow between the inside and outside of the reservoir 111 is blocked.

However, the drum washing machine 100 is spaced apart from the reservoir 111 and the drum 112 by a predetermined interval to prevent interference that may occur during washing and dehydration, between the drum 112 and the reservoir 111. Since the space formed in the space does not have laundry, washing water is not required, but in order to fill the washing water inside the drum 112, the washing water must be filled in the space between the drum 112 and the reservoir 111. In addition, since washing and rinsing and dehydrating strokes are performed in a state where the wash water is fresh in the space, a large amount of washing water is wasted.

In addition, the amount of detergent supplied with the washing water is also increased, causing a problem that water pollution is increased. In particular, in recent years as the heating (Heating) system of the drum washing machine, since the excessive washing water increases the power consumption for raising the water temperature of the washing water, the situation is causing unnecessary energy waste in the washing administration.

The present invention was created to solve such a problem, an object of the present invention is to reduce the amount of laundry during the washing stroke of the drum washing machine to prevent unnecessary water temperature rise and reduce the washing time, thereby reducing the power consumption of the system The present invention provides a water supply control apparatus for a drum washing machine.

Another object of the present invention is to provide a water supply control device for a drum washing machine to reduce the amount of laundry during the washing stroke of the drum washing machine to suppress the use of detergents, thereby reducing the discharge of washing water.

Washing water control apparatus for a drum washing machine according to an aspect of the present invention for achieving the above object, in the water supply control apparatus of the drum washing machine having a heater for heating the washing water to a predetermined temperature, into the drum of the drum washing machine A quantity sensor for detecting an amount of laundry to be put in; A water level sensor for linearly measuring the amount of wash water loaded into the reservoir of the drum washing machine; A data memory configured to store water supply information, which is a water supply amount in which laundry water of an appropriate level may be absorbed into the laundry, corresponding to a detection result of each unit of the quantity detection sensor; And a control device configured to perform a water supply stroke so as to correspond to any of the water supply information selected based on the detection result of the quantity detection sensor.

According to a preferred embodiment of the present invention, the water supply amount information is the first water supply amount information that the absorption amount of the wash water reaches 75% to 85%, and the first water so that the absorption amount of the wash water from the primary water supply to reach the reference value Re-watering amount information which is set to be lower than a predetermined water level than the primary water supply amount information, and the second water supply amount information which is set so that the absorption amount of the wash water exceeds 100% as a level between the re-water supply amount information and the primary water supply amount information. It includes; The control device performs a water supply stroke up to the first water supply amount, and after the predetermined delay time elapses, the water supply level is detected to determine the water supply level until the water supply amount is again determined, and whether or not the washing water is supplied to the second water supply level according to the result of the water supply. It characterized in that it comprises a control pattern for repeatedly performing the water supply stroke to reach.

In addition, the secondary water supply information is water level information corresponding to the water supply amount of 2.5 liters to 3.5 liters, characterized in that the washing operation during the delay time.

In addition, the control device further comprises a heating stroke for heating the wash water, characterized in that the heating stroke control is made based on the arbitrarily selected water temperature information.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing the main control unit of the drum washing machine according to the present invention, will be described with reference to Figure 1 in describing the main operation of the present invention. As shown first, a quantity sensor 211 for detecting the amount of laundry introduced into the drum 112, and a water level for linearly measuring the amount of the washing water loaded into the reservoir 111 of the drum washing machine A sensor 213, a washing drive motor 215 for driving the drum 112 for the washing operation of the drum washing machine, and a heater for heating the washing water to a predetermined temperature for a heating stroke of the drum washing machine. 217 and a data memory 203 for storing the amount of water supply information of the amount of water that can wash the washing water at an appropriate level into the laundry so as to correspond to the detection result of each unit of the quantity detecting sensor 211. The controller 201 is configured to perform a water supply stroke and heating control to correspond to any one of the water supply information selected based on the detection result of the quantity detection sensor 211.

The water level sensor 213 may provide a linear result with one sensor, and may be provided with a nonlinear detection result with a plurality of sensors as necessary.

The water supply amount information is lower than the first water supply amount information so that the water supply amount of the wash water reaches 75% to 85%, and the water supply amount from the primary water supply to reach the reference value And the second water supply amount information set so that the water supply amount is set to be higher than 100% and the water level between the rewater supply amount information and the primary water supply amount information.

Here, the secondary water supply information is water level information corresponding to a water supply amount of 2.5 liters to 3.5 liters. The secondary water supply amount information is an experimental result as a water supply amount corresponding to the remaining amount of the wash water absorption amount. Therefore, it will be apparent that the numerical value of the secondary water supply information can be sufficiently varied as necessary.

On the other hand, the control device 201 performs a water supply stroke up to the primary water supply amount, and after a predetermined time elapses, the water supply level is detected to determine the water supply level until the water supply amount is re-water supply, and whether the washing water is secondary It has a control pattern for repeatedly performing the water supply stroke to reach the water supply level. The predetermined time is regarded as an allowable time for washing water to be sufficiently absorbed into the laundry, and may add a heating stroke and a washing administration.

The driver 205 which is not described is for driving the mechanism of the drum washing machine, and responds to the output signal of the controller 201. In addition, the driver 205 forms a signal detected from each sensor of the drum washing machine, and then amplifies the signal to a predetermined level and inputs it to the control device 201. Undescribed key input means 207 is a plurality of key buttons that can be mounted on the front of the drum washing machine to instruct the washing operation of the washing machine. In addition, the display means 209 is mounted on the front of the drum washing machine is a display device that can notify the user of the washing operation of the washing machine.

3 is a flowchart for explaining the main operation of the present invention.

As shown, the initialization of the drum washing machine is performed in step S301. The initialization step stores user input information for the laundry administration as well as power input of the system. Here, when user input information for starting control of the drum washing machine is input through the key input means 207, the control device 201 generates a control command for starting the drum washing machine.

That is, as in step S303 it detects the amount of laundry injected into the drum (112). This calculates the amount of laundry on the basis of the output value of the quantity sensor 211 provided inside the reservoir 111. The control device 201 patches the primary water supply information corresponding to the output value of the quantity detection sensor 211 from the data memory 203. The data memory 203 nonlinearly stores primary water supply information corresponding to a quantity of water. This is to set the water supply amount corresponding to the amount of water for each predetermined range, and is set based on a plurality of experimental results.

In step S305, the control device 201 receives the primary water supply information corresponding to the amount of water to perform the water supply control. In addition, the control device 201 enables the water level sensor 213 to measure the water supply amount of the wash water currently supplied to the reservoir 111. Here, the water level sensor 213 may be defined as one sensor group composed of a plurality of sensors. That is, a plurality of sensors may be provided to measure the water level of the washing water introduced into the reservoir 111 at predetermined intervals. At this time, the control device 201 determines the current washing water supply amount based on the water level information detected from the plurality of sensors. On the other hand, the water level sensor 213 in the present invention can be linearly measured, based on the water pressure in the reservoir 111 calculates the supply amount of the wash water linearly.

Accordingly, the control device 201 performs water supply control based on the detection result of the water level sensor 213 flowing through the driver 205 and the primary water supply information previously stored in the data memory 203. That is, as shown in step S307, the control device 201 determines whether the current water level is the water level corresponding to the primary water supply information based on the water level measurement result detected by the water level sensor 213. H1 described in this figure; It is primary water supply information, and h is water supply information currently loaded.

As a result of the determination by the control apparatus 201 in step S307, when the current water supply information is greater than or equal to the primary water supply information, that is, the water supply amount introduced into the reservoir 111 is recognized as the reference value (primary water supply). If yes, go to step S309. The control device 201 commands supply of power to the heater 217 and the laundry driving motor 215. The driver 205 supplies power and control signals to the heater 217 and the laundry driving motor 215 in response to a power supply command from the control device 201. Therefore, the drum 112 of the drum washing machine performs the washing stroke based on the control command, and performs the washing water heating stroke by the heater.

The above-described step S309 is performed for a predetermined time, and the setting time may be applied as a means for allowing the wash water to be absorbed into the laundry. That is, the primary water supply information is about 75% to 85% of the amount of water that the wash water can be sufficiently absorbed into the laundry. Therefore, the washing administration in step S309 creates an environment (change of the washing position) to allow the wash water to be completely absorbed into the laundry. Thereafter, when the predetermined time elapses, the wash water of the reservoir 111 is absorbed into the laundry. In step S311, the control device 201 determines whether the current water level reaches the water supply level. Here, the resupply water level will naturally be lower than the primary water supply level.

The illustrated h3 represents the water level corresponding to the refill water supply information, and h is the current water level according to the detection result of the water level sensor 213. As described above, the re-watering amount information is information set based on the primary water supply amount information and is based on the experimental value.

As a result of the determination of the control device 201, if it is determined in step S311 that the current water level is lower than or equal to the resupply water level, the control device 201 enters step S313 to perform water supply control. This means that the wash water corresponding to the primary water supply is absorbed into the laundry, and eventually, the water supply is performed again when the primary water supply is not satisfied. Re-feeding is to allow the wash water to be saturated with the laundry, but preferably to limit the re-feeding amount to approximately 2.5 liters to 3.5 liters to prevent oversaturation.

The control apparatus 201 enters the step S315 after performing such a rewatering stroke. The control apparatus 201 determines whether the current water level reaches the water level corresponding to the secondary water supply amount. Here, h2 represents the secondary water supply level. The control device 201 measures the current water level based on the detection result detected by the water level sensor 213. As a result of the determination of the control device 201, when it is determined that the current water level does not reach the water level corresponding to the secondary water supply information, the control device 201 feeds back to step S313. Therefore, the control device 201 performs a water supply control, and supplies 2.5 L to 3.5 L of wash water to the reservoir 111. The control apparatus 201 then repeats step S315 to perform water supply control so that the current water level reaches h2, that is, the secondary water supply amount.

On the other hand, if it is determined that the water level of the currently measured reservoir 111 is greater than or equal to the water level corresponding to the secondary water supply information, the control apparatus 201 enters the step S317. In step S317, the control device 201 instructs the driver 205 to control the heating and washing stroke control for heating the washing water. The driver 205 supplies power to the heater 217 and starts the washing driving motor 215 to perform a washing operation according to a predetermined procedure. In addition, the control device 201 measures the water temperature in the reservoir 111 through a temperature sensor (not shown). Therefore, the control device 201 determines whether the temperature of the wash water reaches a reference value in step S319. The temperature of the wash water may be arbitrarily set by the user by the key input unit 207, and appropriate water temperature information may be stored into the drum washing machine as needed.

As a result of the determination of the control apparatus 201, when it is determined that the current water temperature has reached the set value, the control apparatus 201 enters the step S321. The control device 201 issues a control command to the driver 205 to end the heating stroke. The driver 205 cuts off the supply power of the heater 217. Thereafter, the control device 201 performs a washing operation such as washing, rinsing, and dehydrating based on the washing control program for the washing operation.

On the other hand, if it is determined in step S319 that the current water temperature does not reach the set value, the control device 201 feeds back to step S317. As described above, the control device 201 controls the driver 205 to proceed with the continuous heater driving and washing stroke.

As described above, the water supply control apparatus of the drum washing machine according to the present invention sets the primary water supply amount according to the quantity of water, and after washing the laundry water corresponding to the primary water supply amount for a predetermined time to be absorbed into the laundry, the second water supply amount again As the amount of wash water is supplied, the washing water is supplied in an appropriate amount corresponding to the amount of water, thereby reducing unnecessary waste of washing water and preventing environmental pollution due to excessive washing water in advance.

In addition, according to the present invention, by reducing the washing water during the washing stroke of the drum washing machine, by preventing the unnecessary rise in water temperature during the heating administration of the drum washing machine and reducing the washing time, there is an effect that can reduce the power consumption of the system.

What has been described above is merely an embodiment of the present invention, and is not limited to the embodiment of the present invention, and as claimed in the following claims, without departing from the gist of the present invention, ordinary knowledge in the field to which the present invention belongs. Anyone having the technical spirit of the present invention to the extent that various changes can be made.

Claims (5)

In the water supply control apparatus of the drum washing machine provided with the heater for heating wash water to predetermined temperature, A quantity sensor for detecting an amount of laundry into the drum of the drum washing machine; A water level sensor for linearly measuring the amount of wash water loaded into the reservoir of the drum washing machine; A data memory configured to store water supply information, which is a water supply amount in which laundry water of an appropriate level may be absorbed into the laundry, corresponding to a detection result of each unit of the quantity detection sensor; And It is made of a control device for performing a water supply stroke to correspond to any one of the water supply information is selected based on the detection result of the quantity detection sensor, The water supply amount information is lower than the first water supply amount information so that the water supply amount of the wash water reaches 75% to 85%, and the water supply amount from the primary water supply to reach the reference value Re-watering amount information set so that the water supply level is set between the re-watering amount information and the primary water supply amount information, and the secondary water supply amount information is set such that the absorption amount of the wash water exceeds 100%; The control device performs a water supply stroke up to the first water supply amount, and after the predetermined delay time elapses, the water supply level is detected to determine the water supply level until the water supply amount is again determined, and whether or not the washing water is supplied to the second water supply level according to the result of the water supply. Water supply control device for a drum washing machine comprising a control pattern for repeatedly performing the water supply stroke to reach. delete The water supply control device of a drum washing machine according to claim 1, wherein the secondary water supply information is water level information corresponding to a water supply amount of 2.5 liters to 3.5 liters. The water supply control device of a drum washing machine according to claim 1, wherein the control device performs a washing operation during the delay time. The water supply control device of a drum washing machine according to claim 1, wherein the control device further comprises a heating stroke for heating the washing water, and a heating stroke control is performed based on arbitrarily selected water temperature information.

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