KR100730920B1 - method for controlling cleaning process of drum-type washing machine - Google Patents

Abstract

Disclosed is a washing method of a drum washing machine capable of saving power and saving water. To this end, the present invention is a washing method of a drum washing machine for introducing the wash water heated by the heater back into the water reservoir using the circulation pump and the circulation hose, a) a first predetermined value such that the power is supplied so that the heater is locked; Watering the washing water and pumping the washing water into the water storage tank through the circulation pump; b) checking whether the wash water of the water tank in the step a) is the first predetermined value, and if the wash water is less than or equal to the first predetermined value, supplying the wash water to the first predetermined value set in the step a); c) detecting the temperature of the wash water when the wash water is determined to be the first predetermined value in step b), and heating the wash water by operating a heater when the wash water temperature is less than or equal to the second predetermined value; d) turning off the heater when the temperature of the wash water reaches a second predetermined value in step c), and then pumping the wash water heated to the second predetermined value to the water tank through the circulation pump for a predetermined time; And e) detecting a current water level when a predetermined time has elapsed in step d), and proceeding in the order of washing stroke, rinsing stroke, and dehydration stroke when the current water level is the first predetermined value set in step a). .

Drum washing machine, circulation pump, circulation hose, heater, motor

Description

Method for controlling cleaning process of drum-type washing machine}

1 is a schematic view showing the position and the connection of the pump housing of the conventional drum washing machine.

Figure 2 is a schematic diagram showing the flow direction of the washing water pumping device and washing water of the drum washing machine according to the present invention.

3 is a flowchart illustrating a washing control process of the drum washing machine of FIG. 2.

<Description of the symbols for the main parts of the drawings>

20: washing water pumping device 22: pump housing

23: drain pump 23a: drain hose

24: circulation pump 24a: circulation hose

The present invention relates to a drum washing machine, and more particularly, to a washing method of a drum washing machine, which is capable of saving water by flowing the washing water during the washing stroke.                         

In general, a washing machine is a machine for washing laundry by performing a washing stroke, a rinsing stroke, and a dehydrating stroke according to a predetermined algorithm. The washing machine is classified into a pulsator type, a stirring type, a drum type, and the like according to a washing method.

Drum washing machine using the drum type washing method is widely used with the advantages of the minimum laundry damage rate and the lowest amount of laundry used compared to other types of washing machines.

Hereinafter, a conventional drum washing machine will be described with reference to FIGS. 1 and 2.

1 is a schematic view showing the position and the connection state of the pump housing of the conventional drum washing machine, Figure 2 is a schematic diagram showing the flow direction of the washing water pumping device and the washing water of the drum washing machine of FIG.

1 and 2, a conventional drum washing machine is largely installed on a main body (not shown), a control panel (not shown) installed at an upper portion of the main body, and a user inputs a washing function and a washing time, and the inside of the main body. A reservoir (1) fixed by a damper to the drum, a drum (2) installed in the reservoir (1), into which laundry is introduced, and a driving force transmitted to the drum (2) through a belt to rotate the drum (2). It consists of a motor that performs washing-related administration.

In addition, a detergent container for injecting detergent (not shown), a water hose (not shown) connected to the detergent container for supplying the wash water or the wash water in which the detergent of the detergent container is mixed, and the wash water used in the washing administration It is configured to include a bellows hose 11 for discharging from the tub 1, and a pump 13 and a pump housing 12 connected to the bellows hose 11 for forcibly pumping the wash water.

Looking at the operation of the drum washing machine configured as described above, when the user opens the door attached to the front of the main body, puts laundry and inputs a washing command by pressing a button on the control panel (not shown), the water supply valve (not shown) opens. The water used for washing is introduced into the tub 1 through the detergent container so that the washing water and the detergent are introduced into the drum 2.

In this case, if the user selects the washing function boiled in the control panel, the water to be heated is heated to a temperature set by a heater (not shown) installed on the bottom surface of the reservoir 1 to boil the laundry.

In such a drum washing machine, when the washing water is filled in the water tank 1 and the drum 2 by a predetermined height, the water supply of the washing water is stopped and the motor rotates with a certain period.

Accordingly, the laundry flows as the drum 2 rotates, and the laundry is washed by the frictional force with the wash water and the decomposition force of the detergent.

When the washing stroke is completed, the laundry discharged to the pump housing through the bellows hose 11 connected to the tub 1 by operating the pump connected to the pump housing 12 to generate a predetermined pressure in the pump housing 12. The water is discharged to the outside through the drain hose 14 as shown by the arrow in FIG.

Subsequently, after the washing water is discharged through the drain hose 14, clean water is supplied into the water tank 1 through the water supply hose again, and a rinsing stroke is started. The rinsing stroke is completed by the same action as in the washing stroke. do.

After the rinsing cycle is repeated the number of times set by the user in the control panel, the washing water is discharged to the outside through the drain hose 14, and then a dehydration stroke is started to drain the moisture contained in the laundry by centrifugal force. .

As described above, the drum washing machine completes the washing of the laundry while sequentially performing the washing stroke, the rinsing stroke and the dehydrating stroke.

In recent years, many countries in Europe and Australia have rated washing machines according to the level of energy consumed, and the higher the energy rating, the more the benefits are given.

However, if the wash water is supplied in a lower amount than the heater operated when the wash water is heated, the temperature in the reservoir is increased due to the heat of the heater, which may cause a fire.

The present invention was created to solve the above problems, the present invention is a drum washing machine for pumping the washing water heated through the circulation pump into the reservoir, it is possible to save water and save power by using the wash water of the information to be wound by the heater It is to provide a washing method of a drum washing machine to achieve the purpose.

Technical problem of the present invention for achieving the above object,

In the washing method of the drum washing machine for introducing the wash water heated by the heater back into the reservoir using a circulation pump and a circulation hose,

a) pumping the washing water into the water tank through the circulation pump after the power is supplied to supply the washing water having a first predetermined value such that the heater is locked;                         

b) checking whether the wash water of the water tank in the step a) is the first predetermined value, and if the wash water is less than or equal to the first predetermined value, supplying the wash water to the first predetermined value set in the step a);

c) detecting the temperature of the wash water when the wash water is determined to be the first predetermined value in step b), and heating the wash water by operating a heater when the wash water temperature is less than or equal to the second predetermined value;

d) turning off the heater when the temperature of the wash water reaches a second predetermined value in step c), and then pumping the wash water heated to the second predetermined value to the water tank through the circulation pump for a predetermined time;

e) detecting the current water level when a predetermined time has elapsed in step d), and proceeding in the order of washing stroke, rinsing stroke, and dehydration stroke when the current water level is the first predetermined value set in step a). It can be achieved by providing a washing method of a drum washing machine.

According to the present invention, since washing is performed using the first predetermined value of washing water at which the heater is locked, power consumption and washing water can be reduced to a minimum.

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

Figure 2 is a view showing the configuration of the drum washing machine according to the present invention, it is provided to resupply the wash water in the reservoir to the extent that the heater is locked using the circulation pump and the circulation hose.                     

Since the drum washing machine according to the present invention is almost the same as the conventional drum washing machine, the same reference parts will be given to the same parts, and the description thereof will be omitted for the same structure and operation.

The washing machine pumping device of the drum washing machine includes a pump housing (22) connected at one end thereof to a bellows hose (11) connected to a water tank (1) for receiving wash water, and a circulation pump connected to one side of the pump housing (22). 24, a circulation hose 24a having one end connected to the circulation pump 24 and the other end connected to the tub 1, a drain pump 23 connected to the other side of the pump housing 22, and It consists of a drain hose 23a having one end connected to the drain pump 23.

In the drum washing machine having such a structure, when a user inputs laundry to the drum 2 and then inputs a washing instruction by pressing a button on the control panel, a water supply valve (not shown) opens and a water tank for washing is used. 1) flows into.

At this time, the washing water supplied into the reservoir 1 is an amount that the heater (not shown) installed in the lower portion of the reservoir 1 is locked. When the water supply in the water storage tank 1 is completed, the circulation pump 24 installed at one side of the pump housing 22 is operated to supply the washing water in the water storage tank 1 to the circulation hose 24a.

As the wash water in the reservoir 1 is moved to the circulation hose 24a, the water in the reservoir 1 becomes smaller than the second predetermined value, and in this case, the water in the reservoir 1 is resupplied so that the heater is locked.

After that, the heater is operated to raise the temperature in the reservoir to a predetermined temperature, and again operates the circulation pump 24 to start the washing stroke. Such a circulation pump may be operated continuously during the washing stroke, and the circulation pump 24 may be operated at predetermined intervals during the washing stroke.

That is, as the circulation pump 24 is rotated, a predetermined pressure is generated in the pump housing 22, and the wash water flowing into the pump housing 22 by the pressure is stored in the reservoir 1 through the circulation hose 24a. ) To circulate the wash water.

Subsequently, when the washing administration time ends, when the drain pump 23 is operated, the washing water accommodated in the tub 1 flows into the pump housing 22 through the bellows hose 11 as shown in the solid arrow direction of FIG. 3. Subsequently, the wash water introduced into the pump housing 22 is discharged to the outside through the drain hose 23a by the action of the drain pump 23. After the wash water accommodated in the water storage tank 1 is completely discharged through the above process, the clean water is supplied to the water storage tank 1 again through the water supply hose, and the water supplied to the water storage tank 1 has a constant water level. Rinse administration is carried out when reached.

Subsequently, after the rinsing stroke, the washing water is completely discharged using a drain pump, and the drum 2 is rotated at a high speed to perform the dehydration stroke to completely wash the laundry.

3 is a flow chart illustrating a washing process of the drum washing machine according to the present invention, and describes the washing process of the drum washing machine having the circulation pump and the circulation hose with reference to this.

First, when power is supplied and washing water of a first predetermined value such that the heater is locked (step 301), the circulation pump 24 is operated by the control of the control unit so that the washing water of the reservoir 1 is circulated hose. It moves to 24a and pumps to the reservoir 1 (step 303).

At this time, the control unit detects the water level of the wash water in the reservoir 1 and checks whether the water level of the wash water is a first predetermined value (so that the heater is locked) (step 305), and the water level of the wash water is less than the first predetermined value If so, the water is resupplied to the first predetermined value (step 307).

Thereafter, the control unit senses the temperature of the wash water in the current reservoir 1 and checks whether the temperature of the wash water has reached a second predetermined value (step 309). 2 When the predetermined value is reached, the heater is turned off (step 311), and the washing water heated to the third predetermined value is moved to the circulation hose 24a through the circulation pump 24 for a predetermined time and the water reservoir 1 Pumping (step 313).

On the other hand, if the temperature of the wash water does not reach the second predetermined value through the step 311, the heater is heated to heat the wash water (step 315), and then the process proceeds to the step 309.

After the execution of the step 313, the water level of the washing water is sensed. At this time, the water level of the washing water is determined to be equal to or less than the first predetermined value (step 319). The drum is rotated at predetermined cycles to sequentially drive the washing stroke, the rinsing stroke, and the dehydration stroke (step 321).

As described above, in the washing method of the drum washing machine according to the present invention, since washing is performed using the washing water having a first predetermined value such that the heater is locked, the power consumption and the washing water can be minimized.                     

While the invention has been shown and described with respect to specific preferred embodiments thereof, the invention is not limited to the embodiments described above, and is commonly used in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Anyone with knowledge will be able to make various variations.

Claims (1)

In the washing method of the drum washing machine for introducing the wash water heated by the heater back into the reservoir using a circulation pump and a circulation hose, a) pumping the washing water into the water tank through the circulation pump after the power is supplied to supply the washing water having a first predetermined value such that the heater is locked; b) checking whether the wash water of the water tank in the step a) is the first predetermined value, and if the wash water is less than or equal to the first predetermined value, supplying the wash water to the first predetermined value set in the step a); c) detecting the temperature of the wash water when the wash water is determined to be the first predetermined value in step b), and heating the wash water by operating a heater when the wash water temperature is less than or equal to the second predetermined value; d) turning off the heater when the temperature of the wash water reaches a second predetermined value in step c), and then pumping the wash water heated to the second predetermined value to the water tank through the circulation pump for a predetermined time; e) detecting the current water level when a predetermined time has elapsed in step d), and proceeding in the order of washing stroke, rinsing stroke, and dehydration stroke when the current water level is the first predetermined value set in step a). Washing method of drum washing machine.

Images