KR20070073136A - Method controlling washing of washing machine - Google Patents

Abstract

A method for controlling a washing machine is provided to rotate a washing tub while injecting a detergent solution and supplying steam, thereby increasing the washing effect. A method for controlling a washing operation of a washing machine includes the steps of: detecting the amount of clothes(S20); initial water supply step of supplying washing water to a set level according to the amount of clothes(S30), wherein the water level makes continuous injecting of a detergent solution possible; high concentration washing step of injecting detergent solution to the laundry articles and rotating a washing tub at a rotational speed, at which laundry articles are stuck to the inner surface of the washing tub for a first period of time, below(S40); additionally supplying the washing water(S50); and low concentration washing step of injecting the detergent solution to the laundry articles with supplying heated steam into the washing tub for a second period of time, and rotating the washing tub at a rotational speed, at which the laundry articles are stuck to the inner surface of the washing tub and are separated from the inner surface of the washing tub, below(S60).

Description

Method for controlling washing of washing machine

1 is a side cross-sectional view showing the structure of a steam washing machine

Figure 2 is a front sectional view showing the structure of the steam washing machine

3 is a flow chart showing a washing control method of a washing machine according to the present invention.

* Explanation of symbols for main parts of the drawings

113: washing water supply pipe 114: detergent box

120: tub 130: washing tub

160: circulation pump 210: heat generating portion

220: steam supply pipe 230: injection nozzle

The present invention relates to a washing machine, and more particularly, to a washing control method of a washing machine that performs washing while reducing the number of washes.

In general, a washing machine is a machine that removes stains on clothing, etc. due to friction caused by the rotational force of the washing water generated by mechanical action together with the chemical action of detergent dissolved in the washing water. Optionally.

The type of washing machine is largely classified into a pulsator washing machine in which the washing tank is set in the vertical direction, and a drum washing machine in which the washing tank is laid in the horizontal direction. Here, since the washing machine is laid horizontally in the drum washing machine as described above, the drum washing machine performs washing by dropping the laundry introduced into the washing tank.

However, in the related art, while washing water is unnecessarily added during washing, washing performance and efficiency are deteriorated.

In particular, during washing, performing the soaking process is more effective for washing performance, but since the consumption of the washing water for the soaking process is considerably large, the soaking process is omitted in the normal washing process, and a large amount of washing even if there is a boiling function Since the water must be heated to a high temperature, the washing water consumption and the power consumption applied to the heater is too high, such as the efficiency is low, there is a problem that the best washing performance and efficiency could not be obtained.

The present invention is to solve the above problems, an object of the present invention is to provide a washing control method of a washing machine of a new method that can effectively increase the washing performance and washing efficiency while reducing the number of washing.

In order to achieve the above object, the present invention comprises the steps of sensing the quantity; An initial water supply step of supplying the washing water to the set water level according to the quantity of water; High concentration washing step of spraying the detergent solution to the laundry for a predetermined time (T1) and rotating the washing tank at a rotation speed that is higher than the speed that the laundry in the washing tank is not stuck to the inner surface of the washing tank; Adding washing water by a predetermined amount; And a low concentration washing step of spraying the detergent solution to the laundry to supply heated steam in the washing tank for a predetermined time (T2) and rotating the washing tank at a rotational speed less than the speed at which the laundry in the washing tank does not adhere to the inner surface of the washing tank. It provides a washing control method of the washing machine.

In addition, the water supply level in the initial water supply step is characterized in that the water supply level is such that the continuous injection of the detergent solution in a high concentration washing step.

At this time, it is preferable that the water level is 1/2 or less of the standard water level according to the amount of water.

On the other hand, according to another aspect of the invention, the step of detecting the amount of; An initial water supply step of supplying the washing water to the set water level according to the quantity of water; High concentration washing step of spraying the detergent solution to the laundry for a predetermined time (T1) and rotating the washing tank at a rotation speed less than the speed that the laundry in the washing tank does not adhere to the inner surface of the washing tank; Adding washing water by a predetermined amount; And a low concentration washing step of spraying the detergent solution to the laundry to supply heated steam in the washing tank for a predetermined time (T2) and rotating the washing tank at a rotational speed less than the speed at which the laundry in the washing tank does not adhere to the inner surface of the washing tank. It provides a washing control method of the washing machine.

In addition, the water supply level in the initial water supply step is characterized in that the water supply level is such that the continuous injection of the detergent solution in a high concentration washing step.

At this time, it is preferable that the water supply level is 1/2 or less of the standard water supply level according to the quantity of water.

On the other hand, when the standard water supply amount according to the amount of washing during standard washing is Q, the water supply amount by the initial water supply is Q1, the water supply amount by the steam supply is Q2, and the additional water supply amount is Q3. (Q1 + Q2 + Q3)} < Q3 < {Q- (Q1 + Q3)}.

Therefore, according to the present invention, it is possible to effectively remove the time of the laundry while saving the wash water.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

A first embodiment of a washing control method of a washing machine according to the present invention will be described with reference to FIGS. 1, 2 and 3 as follows.

1 and 2 are side and front cross-sectional views for explaining the internal structure of the steam washing machine having a steam (Steam) generating device.

The washing apparatus includes a main body 110, a tub 120, a washing tank 130, a steam generating device, a temperature sensor 150, a circulation pump 160, and a circulation passage 170. do.

Here, the main body 110 forms the appearance of the drum washing machine, the inlet 111 is formed on the front thereof.

In this case, a door 140 for opening and closing the inlet 111 is mounted at a portion where the inlet 111 of the main body 110 is formed, and the door 140 and the inner peripheral surface of the inlet 111 are formed. Rim 112 for sealing between the inlet 111 is mounted.

In addition, the main body 110 is provided with a washing water supply pipe 113 for supplying the washing water into the tub 120, the detergent box 114 is provided on the pipeline of the washing water supply pipe 113.

In addition, the tub 120 is provided in a state of being supported in the main body 110.

At this time, the bottom of the tub 120 is connected to the drainage passage 121 for draining the wash water.

In addition, the washing tub 130 is rotatably installed in the tub 120, and is mounted such that the side opened toward the inlet 111 of the main body 110 is positioned.

In this case, a plurality of through holes 131 are formed on the circumferential surface of the washing tub 130 so that the washing water and steam supplied into the tub 120 may be introduced into the washing tub 130.

The steam generator is installed to provide water into the tub 120 or the washing tank 130 by vaporizing water with high temperature heat, and a heat generating unit 210 and the heat generation to provide high temperature heat to vaporize water. It is configured to include a steam supply pipe 220 is made of the flow of water vapor vaporized by the unit 210.

In addition, the steam generating device is further configured to further include a spray nozzle 230 for discharging the steam flowing through the steam supply pipe 220 into the tub 120 or the washing tub 130.

The circulation nozzle 240 is provided at the upper portion of the washing tank 130 to spray the washing water drawn up by the circulation pump 160 to the laundry or the like.

Referring to Figure 3 describes the washing control method of the washing machine of the present invention according to the above configuration.

First, when the user puts the laundry into the washing machine and puts the detergent into the detergent box 114, and then enters the administrative start command (S10), the washing machine rotates the washing tank 130 to count the time to stop or (Count), Or by sensing the rotational speed to detect the amount (S20).

Then, the washing machine performs water supply at the set water level according to the quantity in the washing tank 130 (S30), and at this time, the detergent of the detergent box 114 is introduced with water. The amount of wash water supplied here is less than 1/2 of the standard water supply, and the laundry should not be immersed in the wash water, so that the amount of laundry can be continuously pumped (pumped) by the circulation pump 160. It is preferable that it is the minimum amount to become.

Subsequently, by tumbling the washing tub 130, the laundry is mixed evenly and washing is performed (S40). Here, the tumbling indicates that the laundry tank 130 is rotated at a speed less than a predetermined speed R to repeat the operation of attaching the laundry to the inner wall of the washing tank 130 and falling up, and when the tumbling, the washing tank 130 rotates in one direction. It is possible, and alternating rotations in the forward and reverse directions are also allowed. At this time, the predetermined speed (R) is the speed at which the laundry does not fall as the laundry tank 130 is attached to the wall of the washing tank 130 (that is, the magnitude of the acceleration acting radially outward at one point on the inner circumferential surface of the washing tank 130) It is the rotational speed that becomes equal to the acceleration of gravity, which is the rotational speed so that more than 1G of force can be applied).

In addition, by driving the circulation pump 160 to wet the laundry and uniformly penetrate the laundry, the washing water held up to the bottom of the washing tank 130 is pulled up, and the washing is performed for a predetermined time (T1) while spraying from the upper side of the laundry. Perform. At this time, the amount of washing water is less than when using the standard washing function, the concentration of the detergent dissolved in the washing water is higher, the washing power is increased, it is relatively high concentration compared to the low concentration washing step described later, this step is a high concentration washing step for convenience It is called.

After the predetermined time T1 has elapsed, the washing machine performs additional water supply by a predetermined water level (S50), and while washing the washing tub 130 at a speed lower than the predetermined speed R, washing is performed for a predetermined time T2. (S60). Here, the water supply in the additional water supply step, Q when the standard water supply according to the amount at the time of standard washing, the water supply amount by the initial water supply Q1, the water supply amount by the steam water supply Q2, the additional water supply quantity Q3, the equation {Q -(Q1 + Q2 + Q3)}? Q3? {Q- (Q1 + Q3)} is preferably set within a range that satisfies.

At this time, the pumping (Pumping) as in the high concentration washing step to spray the washing water to the laundry. Since the concentration of the detergent dissolved in the wash water through the additional water is lowered, this step will be referred to as a low concentration washing step in contrast to the high concentration washing step.

At the same time, in the low concentration washing step, the washing machine supplies washing water to the heating unit 210 under the control of a microcomputer (not shown), turns on the heating unit 210 to generate steam, and heated steam To spray the inside of the washing tub 130. At this time, when the internal temperature of the washing tank 130 reaches a reference value due to the high temperature steam, the heating unit 210 is turned off, and the above operation is repeated to perform the washing so that the temperature inside the washing tank maintains the reference value. It is preferable that the temperature used as a reference value is a temperature which can sterilize laundry. At this time, since the temperature inside the washing tank 130 rises due to high temperature steam, the washing machine can obtain a boiled effect.

When the predetermined time T3 elapses, draining is performed (S70), and then a rinsing stroke and a dehydrating stroke are performed (S80), and washing is terminated.

The series of steps S30 to S70 may be performed only once, but may be repeated two or more times depending on the amount of contamination and the degree of contamination of the laundry.

On the other hand, after the initial water supply in the above embodiment, when the washing step is carried out in a high concentration or the foam may occur when the laundry does not get wet with the washing solution, but in this case, the cavitation phenomenon occurs during pumping through this The lack of wash water is detected, and a predetermined amount of additional water is supplied below the initial water supply amount.

And, unlike the above, it may be controlled to perform additional water supply when the water level is detected below a predetermined level through the level detection by a level sensor (not shown), not the operating state of the pump.

Referring to the second embodiment of the present invention that can specifically realize the above object is as follows.

The structure and other control method of the washing machine will be the same as in the first embodiment, but unlike in the above embodiment, in the high concentration washing step, the detergent solution is sprayed on the laundry, and at a rotational speed at which the laundry in the washing tank does not fall on the inner surface of the washing tank. Rotating the washing tank, in the low-concentration washing step, of course, the laundry does not stick to the inner surface of the washing tank and rotates the washing tank at a rotational speed lower than the falling speed, so that tumbling may be made.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the invention pertains, and such modifications are within the scope of the present invention.

Referring to the effect of the washing control method of the washing machine according to the present invention described above are as follows.

First, the washing water is supplied in several stages, but the same amount as the one-time water supply in general washing, thereby reducing the washing water used for washing.

Second, since the washing bath is rotated while supplying steam and spraying the detergent solution, the washing effect is increased due to the smooth lather and boil down effect.

Claims (7)

Sensing a dose; An initial water supply step of supplying the washing water to the set water level according to the quantity of water; High concentration washing step of spraying the detergent solution to the laundry for a predetermined time (T1) and rotating the washing tank at a rotation speed less than the speed that the laundry in the washing tank does not adhere to the inner surface of the washing tank; Adding washing water by a predetermined amount; And a low concentration washing step of spraying the detergent solution to the laundry to supply heated steam in the washing tank for a predetermined time (T2) and rotating the washing tank at a rotational speed less than the speed at which the laundry in the washing tank does not adhere to the inner surface of the washing tank. Washing control method of the washing machine. The method of claim 1, The water supply level in the initial water supply stage, Washing control method of the washing machine, characterized in that the water supply level to the extent that the continuous spraying of detergent solution in the high concentration washing step. The method of claim 2, The water supply level is, Washing control method of the washing machine, characterized in that less than 1/2 of the standard water supply level according to the amount. Sensing a dose; An initial water supply step of supplying the washing water to the set water level according to the quantity of water; High concentration washing step of spraying the detergent solution to the laundry for a predetermined time (T1) and rotating the washing tank at a rotation speed that is higher than the speed that the laundry in the washing tank is not stuck to the inner surface of the washing tank; Adding washing water by a predetermined amount; And a low concentration washing step of spraying the detergent solution to the laundry to supply heated steam in the washing tank for a predetermined time (T2) and rotating the washing tank at a rotational speed less than the speed at which the laundry in the washing tank does not adhere to the inner surface of the washing tank. Washing control method of the washing machine. The method of claim 4, wherein The water supply level in the initial water supply stage, Washing control method of the washing machine, characterized in that the water supply level to the extent that the continuous spraying of detergent solution in the high concentration washing step. The method of claim 5, The water supply level is, Washing control method of the washing machine, characterized in that less than 1/2 of the standard water supply level according to the amount. The method according to claim 1 or 4, When the standard water supply amount according to the amount of standard washing is Q, the water supply amount by the initial water supply is Q1, the water supply amount by the steam supply is Q2, and the additional water supply amount is Q3. The water supply in the additional water supply stage, A washing control method for a washing machine, characterized in that it is set within a range satisfying {Q- (Q1 + Q2 + Q3)} ≤Q3≤ {Q- (Q1 + Q3)}.

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