KR101041081B1 - Washing machine and method to control laundry thereof - Google Patents

Abstract

The present invention relates to a washing machine and a washing control method capable of preventing damage to laundry and improving washing performance.

To this end, the present invention relates to a control method of a washing machine including a water tank for desalination of detergent water, a rotating drum installed inside the water tank to accommodate laundry, and a circulator for supplying the fresh water of the detergent into the rotating drum. In order to detect the load according to the weight of the laundry, water supplying the detergent water of the water level set according to the detected load, rotating the rotating drum at a predetermined RPM for a predetermined time to dissolve the detergent contained in the detergent water and dissolved detergent And spraying water into the rotary drum.

Description

Washing machine and method to control laundry

1 is a block diagram showing the configuration of a washing machine according to an embodiment of the present invention.

2 is a block diagram showing a control configuration of a washing machine according to an embodiment of the present invention.

3 is a flowchart illustrating a washing control process of a washing machine according to an embodiment of the present invention.

Description of the Related Art [0002]

100: washing machine 110: main body

120: tank 130: rotating drum

140: rotation axis 150: motor

160: drain 170: circulator

180: water supply device 190: detergent supply device

The present invention relates to a washing machine, and more particularly, to a washing machine and washing control method thereof that can reduce the damage of the laundry due to incomplete dissolution of the detergent.

In general, a washing machine (usually a drum washing machine) is installed inside the housing to be rotatably installed in the tank and the water tank containing the detergent water containing detergent, the rotating drum for washing the laundry and hinged to the front of the housing It is equipped with a door for opening and closing the opening formed in the front of the laundry is put into the rotating drum through the opening of the housing and a predetermined amount of detergent water is supplied to the water tank to wash the laundry by rotating the rotating drum.

When the user selects a washing course, the washing machine senses the load of laundry and determines the amount of washing.In accordance with the determined washing amount, the washing machine adds enough washing water and detergent to wet the inside of the tank, and then rotates the drum. When the washing stroke and the rinsing stroke are performed by rotation, the washing of the laundry is completed.

However, the conventional washing machine is sprayed with detergent water without any detergent dissolution process, so that the detergent contained in the detergent water is delivered to the laundry without melting.

As such, when the detergent is delivered to the laundry in a state where the detergent is not dissolved, some of the undissolved detergent remains in the laundry even after the end of the washing administration, and the laundry is damaged, and the detergent water is disproportionately transmitted to the laundry. have.

Therefore, the present invention was devised to solve the above problems, by rotating the rotating drum at a predetermined RPM to dissolve the detergent contained in the detergent water to prevent damage to the laundry due to the remaining of the detergent, detergent water laundry An object of the present invention is to provide a washing machine and its washing control method, which are distributed evenly in order to improve washing performance.

Washing control method of the washing machine according to an embodiment of the present invention for achieving the above object is a water tank for desalination of detergent water, a rotating drum installed inside the tank to accommodate the laundry, and detergent water in the tank In the control method of the washing machine comprising a circulation device for supplying the inside of the rotating drum, the step of sensing the load amount according to the weight of the laundry water supplying detergent water of the water level set according to the detected load amount, the rotating drum at a predetermined RPM Dissolving the detergent contained in the detergent water by rotating for a time, and characterized in that it comprises the step of spraying the dissolved detergent water into the rotating drum.

At this time, the predetermined RPM to rotate the rotating drum is 60RPM or more and 200RPM or less, the detergent water of the set water level is a minimum water supply amount determined based on the detected load of the laundry.

Here, after inverting the rotating drum to wet the laundry, if the detected water level is lower than the set water level further comprises the step of replenishing the feed water to the water tank.

In addition, the washing machine according to an embodiment of the present invention is a water tank for deterging detergent water, a rotating drum installed inside the water tank to accommodate laundry, and a circulator for supplying the fresh water of the detergent into the rotating drum. It includes, the water supply to control the supply of detergent water and the water supply to control the water supply to set the water level of the water tank, and controls the rotating drum to rotate for a predetermined time so that the detergent contained in the detergent water is dissolved And, it further comprises a control unit for controlling the circulation device for supplying the detergent water dissolved detergent detergent into the rotating drum.

Specific details of other embodiments are included in the detailed description and the drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various forms, and the present embodiments are merely provided to make the disclosure of the present invention complete and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, the invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

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

1 is a block diagram showing the configuration of a washing machine according to an embodiment of the present invention.

As shown in Figure 1, the washing machine 100 according to an embodiment of the present invention is rotatably installed in the water tank 120 and the water tank 120 is installed in the main body 110 for the fresh water of water. A cylindrical rotating drum 130 is included.

Here, the rotating drum 130 installed in the water tank 120 and the water tank 120 has a predetermined angle (α) with respect to the installation surface of the washing machine as a whole so that the front portion 121 having the inlet is positioned higher than the rear portion 122. ) It is installed to make a slope.

In addition, the motor 150 is installed outside the rear part 122 of the water tank 120 as a driving device for rotating the rotating shaft 140 connected to the rotating drum 130 to perform washing, rinsing, and dehydrating operations.

In addition, the front portion of the main body 110 is formed with an inlet 160 for putting laundry into the inside of the rotating drum 130 or to take out the laundry therein, and the door 115 for opening and closing the entrance is provided at the inlet 115. Is installed.

In addition, a water supply device 180 for supplying water supplied to the inside of the water tank 120 and a detergent supply device 190 for supplying detergent are formed at an upper portion of the water tank 120, and the water supply device 180 is provided. The water supply pipe 181 is installed to the water tank 120 via the detergent supply device 190 is configured so that the detergent water mixed with detergent and water can be supplied into the water tank 120.

In this case, the water supply device 180 further includes a water supply valve 182 for controlling the water supply in addition to the water supply pipe 181.

In addition, the present invention is provided with a drain device 160 for draining the detergent water in the water tank 120 and the circulation device 170 for supplying the detergent water in the water tank 120 into the rotary drum 130. do.

In addition, the drainage device 160 includes a drain pipe 162 and a drain pump 163 connected to a drain port 161 below the water tank 120 for laying down the detergent water of the water tank 120 to the outside. The device 170 is a circulation pipe 172 extending from the flow path switching valve 171 installed in the middle of the drain pipe 162 connected to the outlet of the drain pump 163 and the inlet of the rotary drum 130 from the flow path switching valve 171. And an injection nozzle 173 installed at the outlet of the circulation pipe.

At this time, the flow path switching valve 171 is composed of a conventional three-way valve to switch the flow path so that the detergent water from the outlet of the drain pump 163 to the outside or flows toward the circulation pipe 172. In addition, the injection nozzle 173 is installed adjacent to the rotating drum 130 so as to spray the detergent water into the rotating drum 130 through the inlet of the rotating drum 130.

2 is a block diagram showing a control configuration of a washing machine according to an embodiment of the present invention.

As shown in Figure 2, the washing machine according to an embodiment of the present invention detects the water level of the detergent water supplied to the signal input unit 210 and the water tank 120 for inputting driving information such as a washing course selected by the user. The laundry weight sensor 230 in the washing course selected by the microcomputer to control the washing machine according to the driving information input from the water level sensor 220 and the laundry weight sensor 230 and the signal input unit 210 to detect the weight of the laundry The controller 240 stores the washing water quantity, the motor RPM, and the washing time set according to the load amount detected by the driver, and a driving unit 250 driving the washing machine under the control of the controller 240.

Here, the controller 240 controls the water supply device 180 to supply the minimum detergent water determined based on the detected load of the laundry into the water tank 120 to invert the rotating drum 130 to wet the laundry, and then set When the water level of the detergent water after wet compared to the water level is lower than the set water level to supply the replenishing water, and controls the rotating drum 130 to rotate for a predetermined time so that the detergent contained in the detergent water is completely dissolved. . Thus, the detergent water is completely dissolved detergent is supplied to the rotating drum 130 through the circulation device 170 to perform the washing administration.

At this time, the speed of the rotating drum 130 for dissolving detergent will be most preferably to rotate the rotating drum 130 in more than about 30 seconds 5 minutes or less to 60 RPM or more and 200 RPM or less. However, the present invention is not necessarily limited thereto.

Looking at the washing control method of the washing machine according to an embodiment of the present invention configured as described above is as shown in FIG.

3 is a flowchart illustrating a washing control process of a washing machine according to an embodiment of the present invention.

Referring to FIG. 3, first, when the laundry is put into the rotating drum 130 and the user selects driving information such as a washing course according to the type of laundry, the laundry weight sensing unit 230 is placed in the rotating drum 130. The control unit 240 operates the water supply device 180 according to the detected load amount, and the water supply valve 182 is opened, and the water passes through the water supply pipe 181 via the detergent supply device 190 to the water tank 120. Water detergent water (S310).

Thereafter, the water level detection unit 220 detects whether or not the water supply of the detergent water supplied by the set water level (S320). At this time, the set water level refers to the minimum water supply determined based on the detected load amount.

When the detected level of detergent water reaches the set level, the control unit 240 turns off the water supply valve 182 and reverses the rotating drum 130 so that the laundry is wet (S330).

After wetting the laundry, the water level after the inversion in the water level detection unit 220 is compared with the set water level (S340) when the water level after the inversion is lower than the set water level in the control unit 240 to turn on the water supply valve 182 to reach the set water level To supply the replenishment water (S350).

Thereafter, when the replenishment water reaches the set water level (S360), the control unit 240 rotates the rotating drum 130 at a predetermined RPM so as to completely dissolve the detergent contained in the detergent water (S370). At this time, the rotation drum 130 is rotated for more than about 30 seconds 5 minutes or less to 60 RPM or more and 200 RPM or less.

As such, by rotating the rotating drum 130, the detergent water completely dissolved in the detergent is injected into the inside of the rotating drum 130 while the flow path switching valve 171 and the drain pump 163 of the circulation device 170 operate. Spraying through 173 (S380) to perform the laundry administration (S390).

As described above, the present invention rotates the rotating drum at a predetermined RPM before the detergent water is supplied into the rotating drum 130 to completely dissolve the detergent contained in the detergent water, thereby supplying detergent water to the rotating drum 130. It is distributed and can prevent the damage of laundry.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. You will understand that. Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive.

As described above, the present invention rotates the rotating drum at a predetermined RPM for a predetermined time before supplying detergent water to the rotating drum to completely dissolve the detergent contained in the detergent water supplied to the water tank, thereby preventing damage to the laundry due to the remaining detergent. do.

In addition, the present invention improves the washing performance by spraying the detergent water completely dissolved in the detergent to the laundry in a balanced manner.

Claims (5)

In the control method of the washing machine comprising a water tank for fresh water, a rotating drum installed inside the water tank to accommodate laundry, and a circulation device for supplying the fresh water to the rotating drum. Detecting a load amount according to the weight of the laundry and watering the detergent water at a predetermined level according to the detected load amount; Rotating the rotating drum at a predetermined RPM to dissolve the detergent contained in the supplied detergent water; And Spraying the dissolved detergent water into the rotary drum; Washing control method of the washing machine comprising a. The method of claim 1, Washing control method of the washing machine, characterized in that the predetermined RPM is more than 60RPM or less than 200RPM. The method of claim 1, The washing water method of the washing machine is characterized in that the minimum amount of water determined based on the detected load amount. The method of claim 1, Inverting the rotating drum to wet the laundry; and And after the wetness of the laundry, replenishing the replenishment water in the water tank when the detected water level is lower than the set water level. In the washing machine comprising a water tank for fresh water for washing, a rotating drum installed inside the water tank to accommodate laundry, and a circulator for supplying the fresh water to the rotating drum. Water supply device for controlling the supply of detergent water; And The water supply device is controlled to supply the detergent water of the water level set to the water tank, the rotating drum is controlled to rotate for a predetermined time so that the detergent contained in the detergent water is dissolved, and the detergent water in which the detergent is dissolved is supplied. A control unit for controlling the circulation device which is supplied into the rotating drum; Washing machine comprising a.

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