KR19990039453A - Washing machine and washing method - Google Patents

Abstract

The present invention relates to a laundry administration for washing the laundry contained in the laundry by mixing the washing water and detergent, and to a washing method of the washing machine and the washing machine to sequentially perform a rinsing stroke and a dehydration stroke according to the program after the washing stroke. Advancing intermittent dehydration after said dehydration stroke; Detecting whether the laundry in the washing tank is entangled during the intermittent dehydration; If the laundry is entangled, re-supplying water to a level higher than the initial set water level in the washing tank; And rinsing the laundry in the washing tank for a predetermined time. As a result, the laundry is not tangled and the washing is completed, thereby increasing the user's satisfaction and further improving the washing effect.

Description

Washing machine and washing method

The present invention relates to a washing machine and a washing method thereof, and more particularly, to a washing machine and a washing method capable of preventing tangling of laundry.

Figure 4 is a flow chart illustrating a washing method of a conventional washing machine. When the power source is attracted (P1), the user operates the keys of the operation unit to select the water level, the washing time, the washing course, and the like (P2). Then, the water supply proceeds to the initially set water level under the control of the controller (P3), and after the washing administration is performed (P4), the washing water in the washing tank is drained (P5). Then, intermittent dehydration is performed in order to remove the debris and the like contained in the laundry before the rinse stroke is performed (P6). Then, the water supply proceeds (P7), after the rinsing stroke (P8), the process of draining (P9) is repeatedly carried out for a predetermined number of times (P10), and also after intermittent dehydration (P11), dehydration (P12) Washing of the laundry is completed by (P13).

During this series of washing processes, that is, before dehydration, the control unit detects whether the laundry is imbalanced in the washing tank. The imbalance of the laundry may be determined by detecting whether the laundry is rotated to one side when the washing tank is rotated at a predetermined speed. If the laundry is unbalanced, the washing water is supplied to the washing tank and rinsed. Carry out additional administration. Then, the tangled laundry is released, so that the laundry after draining is rebalanced. As a result, the dehydration effect is improved, as well as to prevent tangling of the laundry.

By the way, in the conventional washing method of the washing machine, by performing an additional rinsing stroke before the dehydration stroke, the tangling of the laundry can be solved to some extent, but the problem of tangling the laundry is not completely solved. Therefore, in some cases, the laundry is drawn out without being completely loosened, and it is true that various studies are being conducted to solve the laundry entanglement problem.

Accordingly, an object of the present invention is to provide a washing method of a washing machine and a washing machine that can be washed in a state in which the laundry is not tangled, thereby increasing the user's satisfaction and reducing the wear of the laundry, and also improving the washing effect. To provide.

1 is a longitudinal sectional view of a washing machine according to the present invention;

2 is a control block diagram of a washing machine according to the present invention;

3 is a flowchart showing a washing method of a washing machine according to the present invention;

Figure 4 is a flow chart illustrating a washing method of a conventional washing machine.

<Description of Symbols for Main Parts of Drawings>

3: outer casing 4: outer tub

5: washing tank 6: suspension

7: pulsator 8: drive motor

9 shaft assembly 11 top cover

15: door 21: operation panel

23: substrate frame 25: display unit

27: operation button

The above object, according to the present invention, in the laundry administration to wash the laundry contained therein by mixing the washing water and detergent, and washing method of the washing machine to sequentially perform a rinsing stroke and dehydration stroke according to the program after the washing stroke, Advancing intermittent dehydration after the rinsing stroke and before the dehydrating stroke; Detecting whether the laundry in the washing tank is entangled during the intermittent dehydration; If the laundry is entangled, re-supplying water to a level higher than the initial set water level in the washing tank; The washing method of the washing machine further comprises the step of rinsing the laundry in the washing tank for a predetermined time.

Wherein the washing process further includes intermittent dehydration that proceeds before the rinsing stroke; The intermittent dehydration may detect whether the laundry in the washing tank is tangled, and if tangled, the water for the rinsing stroke may be advanced one step higher than the initially set water level.

At this time, whether the laundry is entangled, it is possible to determine whether the rotation of the washing tank in the intermittent dehydration.

On the other hand, according to another field of the present invention, the object is a washing machine having a washing tank for washing the laundry contained in the laundry mixed with a detergent, comprising: a water supply valve for regulating the water supply into the washing tank; A drain valve for regulating the drainage from the washing tank; A detection sensor for detecting a state of laundry in the washing tank drained; The water supply valve has a determination unit for determining whether the laundry is entangled based on a signal from the detection sensor. When the laundry is tangled, the water supply valve controls the water supply valve to proceed with water supply up to a level higher than the initial level. It may also be achieved by a washing machine comprising a control unit.

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

1 is a longitudinal cross-sectional view of a washing machine according to the present invention. As can be seen in the figure, the washing machine has an outer casing 3 having a rectangular cylindrical shape and an upper cover 11 coupled to the upper portion of the outer casing 3. The upper cover 11 is provided with a door 15 so that laundry can be put in and out, and the door 15 is formed to be opened and closed. In the outer casing 3, a cylindrical outer tub 4 is suspended from the outer casing 3 via a plurality of suspensions 6, and a cylindrical washing tub 5 is installed in the outer tub 4. It is. A plurality of dewatering holes are formed on the bottom and inner wall of the washing tub 5 for dehydration after washing.

At the bottom of the washing tank 5, a pulsator 7 is installed, which is driven forward and backward and generates various water flows. The lower side of the outer tub 4 is provided with a drive motor 8 for generating washing driving force and a shaft assembly 9 for transmitting the driving force of the drive motor 8 to the washing tub 4 and the pulsator 7. The shaft assembly receiving the driving force of the driving motor selectively drives the washing tank and the pulsator to perform washing and dehydration of the laundry.

On the other hand, the operation panel 21 is installed on the front upper surface of the upper cover 11 to control the washing process of the washing machine (1). The operation panel 21 blocks the front surface of the substrate frame 23 accommodated in the receiving portion recessed from the plate surface of the upper cover 11, the receiving portion 17, and operates the device operation push button 27 and the device. It is comprised by the display part 25 which has a display window which displays the state. Push buttons 27 are provided to select the washing level, washing time, washing course, etc., respectively.

Hereinafter, a washing method of the washing machine according to the present invention will be described with reference to the control block diagram of FIG. Washing machine 1 according to the present invention, the power supply unit 53 for supplying power from the outside, the operation unit 21, the user can operate the operation of the device, the output signal from the operation unit 21 is applied And a control unit 41 for controlling the load driving unit 43 and each function unit, a sensor unit 52, and a load driving unit 43 which is operated and controlled in accordance with a control signal from the control unit 41.

When the power is applied through the power supply unit 53 (S1), the user operates a plurality of keys 33, 34, 35 provided in the operation unit 21 to set the water level, washing time, washing course, etc. (S2). Then, the water supply valve 45 is opened by the control of the controller 41, and the water supply proceeds to the initially set water level (S3), based on the signal of the water level detection sensor 55 which detects the progress of the water supply. 41 closes the water supply valve 45. When the water supply is completed, the control unit 41 controls the drive motor 8 and the shaft assembly 9 to rotate the washing tank 5, thereby washing the laundry proceeds (S4).

When the washing is completed for a predetermined time, the drain valve 47 is opened to drain the washing water in the tank (S5), and intermittent dehydration is performed (S6). At this time, the degreased product contained in the laundry or the degreased product left on the bottom of the washing tank 5 is discharged to the outside through the drain pipe, in this process, the controller 41 detects whether the laundry is tangled (S7). When the laundry is entangled or disproportionately arranged, when the intermittent dehydration, the washing tank 5 is rotated to one side. The control unit 41 may determine the tangled state of the laundry by detecting a rotation biased toward one side of the washing tank 5.

On the other hand, if the laundry is tangled, that is, when the washing tank 5 is rotated unbiased, the controller 41 opens the water supply valve 45 so that the water supply proceeds to a level higher than the initially set water level (S9). Then, the tangled laundry is effectively released during the rinsing cycle. However, if the laundry is not tangled, the water is advanced to the initial level (S8). Then, the rinse stroke is performed (S10), the drainage is performed (S11), and the rinsing stroke is repeatedly performed for a predetermined number of times (S12). The rinsing in this way can remove the debris and strays contained in the laundry, and the laundry can be entangled.

When the rinsing stroke is completed, the intermittent dehydration proceeds again (S13). At this time, the control unit 41 may detect the tangled state of the laundry in the same manner as described above (14). Thus, when the laundry is entangled, that is, when the washing tank 5 rotates eccentrically to one side, water is supplied to a level higher than the initially set level (S9), and the rowing stroke is performed again (S10). The tangled laundry is thereby released, and if the tangled laundry is not released by this operation, an additional rinse stroke is performed once again.

On the other hand, when the laundry is not entangled or the laundry is entangled with the additional rinsing cycle repeatedly, that is, the rotation of the washing tank is balanced, the control unit rotates the washing tank 5 at a predetermined speed to be included in the laundry. Completely dehydrate the wash water (S16). The series of washing operations and the set washing conditions are displayed on the display unit 25, that is, the display unit. Since the laundry is finished (S17) can be taken out in a tangled state, the user can easily hang, and at this time, the washing effect of the fines is also improved.

On the other hand, in the above-described and illustrated embodiment, when the tangled state of the laundry is indirectly detected through the unbalanced rotation of the washing tank 5 when intermittent dehydration, it is equipped with an optical sensor to directly detect the tangled laundry. can do. Then, the problem of entanglement of the laundry can be solved more effectively.

As described above, according to the present invention, the laundry is not tangled and the washing is completed to increase the user's satisfaction and at the same time reduce the wear of the laundry, and also to wash the washing machine and the washing machine to improve the washing effect A method is provided.

Claims (4)

In the laundry administration for washing the laundry contained in the laundry by mixing the washing water and detergent, and the washing method of the washing machine to sequentially perform a rinsing stroke and dehydration stroke according to the program after the washing stroke, Advancing intermittent dehydration after the rinsing stroke and before the dehydrating stroke; Detecting whether the laundry in the washing tank is entangled during the intermittent dehydration; If the laundry is entangled, re-supplying water to a level higher than the initial set water level in the washing tank; The washing method of the washing machine further comprising the step of rinsing the laundry in the washing tank for a predetermined time. The method of claim 1, Further comprising intermittent dehydration proceeding after the washing stroke and before the rinsing stroke; The washing method of the washing machine characterized in that when the intermittent dehydration detects whether the laundry in the washing tank is entangled, if it is tangled, the water supply for the rinsing stroke is advanced one step higher than the initial set water level. The method according to claim 1 or 2, The tangling of the laundry, washing method of the washing machine, characterized in that it can be determined whether the rotation of the washing tank biased when the intermittent dehydration. In the washing machine having a washing tank for washing the laundry contained therein mixed with washing water and detergent, A water supply valve for regulating water supply into the washing tank; A drain valve for regulating the drainage from the washing tank; A detection sensor for detecting a state of laundry in the washing tank drained; The water supply valve has a determination unit for determining whether the laundry is entangled based on a signal from the detection sensor. When the laundry is tangled, the water supply valve controls the water supply valve to proceed with water supply up to a level higher than the initial level. Washing machine comprising a control unit.