KR20000009775A - Washing machine and control method thereof - Google Patents

Abstract

PURPOSE: A washing machine and a control method are provided to improve the flow of rinse supplied to a washing tub by preventing the rinse having a big viscosity from sticking inside a liquid material outflow pipe. CONSTITUTION: The washing machine is composed of: a liquid material outflow pipe for flowing out the liquid material, connected to a liquid material container; a liquid material valve for controlling the outflow of the material contained in the liquid material container, installed in a working area of the liquid material outflow pipe; a water supplying pipe for supplying a washing water to a washing tub(7); a control unit for controlling the liquid material valve, the water supplying valve(51) and the outflow of the liquid material and the washing water according to the selected washing mode.

Description

Washing machine and control method

The present invention relates to a washing machine and a control method thereof, and more particularly, to a washing machine and a control method thereof, which can prevent the liquid agent from adhering to the liquid discharge pipe during the supply of the viscous liquid, and can automatically supply the liquid. It is about.

5 is a perspective view of a washing machine having a conventional rinsing container, and FIG. 6 is a partially enlarged cross-sectional view taken along line VI-VI of FIG. 5. As shown in these figures, a conventional washing machine has a rectangular cylindrical casing 101 forming an outer appearance, a top cover 103 coupled to an upper portion of the casing 101, and a lower portion of the casing 101. It has a base plate 105 to be bonded.

The casing 101 is provided with a cylindrical outer tub provided to accommodate the wash water, and a washing tub 107 installed in the outer tub to be rotatable and driven with an accommodating part accommodating the laundry.

An opening 109 is formed in the central area of the top cover 105 for taking out and receiving laundry, and a door 111 that can be folded to open and close the opening 109 is installed at the rear edge of the opening 109. It is. An operation unit 113 provided with a plurality of operation switches is provided in the front region of the top cover 105, and a pair of water supply pipes are provided in the rear region of the top cover 105 to supply cold water and hot water into the washing tank 107. 115). The water supply pipe is provided with a pair to supply cold water and hot water, and the lower side of the water supply pipe is provided with a detergent container accommodating portion 117 having one side opened toward the washing tank 107 side.

In this case, a water supply port (not shown) opened to communicate with the water supply pipe 115 is formed at an upper side of the detergent container accommodation part 117, and the detergent container accommodation part 117 has a detergent so as to be slid out along the opened side. The container 119 is provided. The detergent container 119 has a detergent accommodating part 121 in which powder detergent is accommodated, and the filter member 123 is disposed on the upper part of the detergent accommodating part 121 to block the detergent mass from flowing into the washing tank 107. Is rotatably coupled.

On the other hand, in the rear region of the top cover 105, a rinsing agent container 130 for automatically introducing the rinsing agent into the washing tank 107 is provided. The rinsing agent container 130, as shown in Figure 5, the inlet opening 131 for receiving the rinsing agent in the shape of a funnel and injecting the rinsing agent at the top, and the outlet opening downward for the outflow of the rinsing agent at the bottom 133 is formed.

One end of the outlet 133 is connected to the outlet 133, and the other end of the rinse agent outflow pipe 137 is opened to the washing tank 107. A rinsing agent valve 139 is provided at one region in the longitudinal direction of the rinsing agent discharge pipe 137 to control the outflow of the rinsing agent, and an opening opening (131) is provided at the upper input opening 131 of the rinsing agent container 130. The container cover 135 for opening and closing the 131 is provided.

By such a configuration, the user withdraws the detergent container 119 accommodated in the detergent container accommodating part 117 according to the amount of laundry, and puts an appropriate amount of powder detergent into the detergent accommodating part 121. Thereafter, when the user sets the washing course, the water supply valve (not shown) is opened to wash the water into the detergent accommodating part 121, and the injected washing water dissolves the powder detergent in the detergent accommodating part 121 in a liquid state. It is supplied to the washing tank 107. When the input of the detergent and the washing water is completed, the washing administration proceeds according to the washing course selected by the user, and when the washing is completed, a plurality of rinsing strokes which sequentially proceed with water supply, rinsing, and draining are performed.

On the other hand, if it is determined that the last rinsing stroke in the course of a plurality of rinsing strokes, the control unit (not shown) supplies the wash water by opening the water supply valve, and further, by opening the rinse agent valve 139, the rinsing container 130 The rinsing agent which is a fiber softener accommodated in is supplied into the washing tank 107.

By the way, in such a conventional washing machine, the rinsing agent flowing out into the washing tank through the rinsing agent outflow pipe can be adhered to the rinsing agent outflow pipe at the time of supply of the rinsing agent because of the relatively high viscosity, thereby, Since the flow is lowered, the rinsing agent is not smoothly introduced.

It is therefore an object of the present invention to provide a washing machine and a control method thereof, which can prevent a relatively viscous rinsing agent from sticking to the liquid outflow tube and improve the flow of the rinsing agent supplied to the washing tank.

1 is a perspective view of a washing machine having a rinsing agent container according to the present invention;

FIG. 2 is a partially enlarged cross-sectional view taken along line II-II of FIG. 1;

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

4 is a flowchart illustrating a control method of a washing machine according to the present invention;

5 is a perspective view of a washing machine having a conventional rinsing container;

FIG. 6 is a partially enlarged cross-sectional view taken along line VI-VI of FIG. 5.

* Explanation of symbols for the main parts of the drawings

1: casing 3: top cover

7: washing tank 15: water supply

17: detergent container accommodating part 19: detergent container

30: rinse agent container 31: input opening

33: outlet 35: rinse agent outflow pipe

37: rinse agent valve 39: branch connection

41: water supply pipe 43, 45: groove

47: O-ring 51: water supply valve

60: control unit 61: power input unit

The object of the present invention is a washing machine having at least one liquid container containing an upper opening and a lower outlet and containing a liquid, a casing on which the liquid container is mounted, and a washing tank rotatably installed in the casing. A liquid discharge pipe is connected to the liquid container and discharges the liquid; A water supply pipe communicating with the liquid discharge pipe and supplying the washing water into the washing tank; A liquid valve for controlling the liquid contained in the liquid container; A water supply valve for regulating water supply from the water supply pipe; It is achieved by a washing machine comprising a control unit for opening and closing the liquid valve and the water supply valve in accordance with the selected washing mode.

Here, the liquid container is preferably a rinsing agent container containing a rinsing agent.

On the other hand, according to another object of the present invention, having at least one liquid container containing the upper opening and the lower outlet, and accommodates the liquid, a casing equipped with the liquid container, and a washing tank rotatably installed in the casing A control method of a washing machine, the method comprising: determining a supply time and an input amount of a liquid according to a selected washing mode; It is achieved by the control method of the washing machine comprising the step of supplying the liquid and wash water.

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

1 is a perspective view of a washing machine having a rinsing container according to the present invention, and FIG. 2 is a partially enlarged cross-sectional view taken along line II-II of FIG. 1. As shown in these figures, the washing machine is coupled to a rectangular cylindrical casing 1 forming an outer appearance, a top cover 3 coupled to an upper portion of the casing 1, and a lower portion of the casing 1. It has a base plate 5 which becomes. The inside of the casing 1 is provided with a cylindrical outer tub provided to accommodate the wash water, and a washing tub 7 installed to be rotatable drive with an accommodating portion accommodating the laundry therein.

An opening 9 is formed in the central area of the top cover 3 to take out and receive the laundry, and a door 11 that can be folded to open and close the opening 9 is installed at the rear edge of the opening 9. It is. An operation part 13 provided with a plurality of operation switches is provided in the front area of the top cover 3, and a pair of water supply parts in the rear area of the top cover 3 to supply cold water and hot water into the washing tank 7. (15) is provided. The detergent container accommodating part 17 which opened one side toward the washing tank 7 side is provided under the water supply part 15. As shown in FIG.

At this time, a water supply opening (not shown) is formed above the detergent container receiving portion 17 so as to communicate with the water supplying portion 15, and the detergent container receiving portion 17 is capable of sliding out along the opened side. The detergent container 19 is provided. The detergent container 19 has a detergent accommodating part 21 in which powder detergent is accommodated, and the filter member 23 is disposed on the upper part of the detergent accommodating part 21 to block the detergent mass from flowing into the washing tank 7. Is rotatably coupled.

On the other hand, in the rear region of the top cover 5, a rinse agent container 30 for automatically introducing the rinse agent into the washing tank 7 is provided. The rinsing agent container 30 accommodates the rinsing agent in a funnel shape, and as shown in FIG. 2, an inlet opening 31 for injecting the rinsing agent in the upper part and a downward opening for the outflow of the rinsing agent in the lower part. It has an outlet 33. The upper lid opening 31 of the rinsing agent container 30 is provided with a container cover 49 for opening and closing the lid opening 31.

In addition, one end of the rinsing agent container 30 is connected to the outlet 33, and the other end of the rinsing agent outflow pipe 35 is opened to the washing tank 7. An annular groove 43, 45 is formed between the outlet 33 and the coupling portion of the rinse agent outflow pipe 35, and the groove 43, 45 is equipped with an O-ring 47 to rinse the rinse container 30. ) And the rinsing agent outflow pipe (35).

In addition, the rinsing agent outflow pipe 35 is provided with a rinsing agent valve 37 for controlling the outflow of the rinsing agent, and the branch wall 39 protruding from the wall is formed in the pipe wall of the rinsing agent outflow pipe 35. . Branch connection portion 39 is formed on the downstream side of the rinse agent valve 37, the water supply pipe 41 is connected to the water supply portion 15 of the top cover 3 to supply the wash water from an external wash water supply source Connected. In one region of the water supply pipe 41, a water supply valve 51 for controlling water supply from the water supply unit 15 is provided.

Hereinafter, a control method of the washing machine will be described with reference to a control block diagram of the washing machine according to the present invention of FIG. 3 and a flowchart showing a washing method of the washing machine according to the present invention of FIG. 4. As shown in these figures, the washing machine includes a power input unit 61 for inputting power from the outside, an operation unit 13 for allowing a user to operate an operation of the device, and is usually made of a microcomputer and inputted from the operation unit. The rinsing agent valve 37, the control unit 60 for controlling the water supply valve 51 in accordance with the input signal, and the rinsing agent valve 37, the water supply valve 51, etc., which are operated and controlled according to the control signal from the control unit. Consists of.

The controller 50 opens the water supply valve 51 at the washing stroke to supply the washing water to the washing tank 7, and opens the rinsing agent valve 37 and the water supply valve 51 at the rinsing stroke to wash the washing tank 7. Rinse the agent into the

As shown in FIG. 4, when power is input through the power input unit 61 (S1), the user selects a washing mode by operating an operation switch provided on the operation unit 13 (S2). When the washing mode is selected, the controller 60 opens the water supply valve 51 to supply the washing water and supplies the detergent contained in the detergent accommodating part 21 to proceed with the washing operation (S3). When the washing stroke is completed, the control unit 60 proceeds a plurality of rinsing strokes to sequentially proceed with water supply, rinsing, draining (S4).

At this time, the control unit 60 determines whether it is the last rinsing stroke among the plurality of rinsing strokes (S5), and when it is determined that the last rinsing stroke is made, the rinsing agent valve 37 and the water supply valve 51 are opened (S6). ). When the rinsing agent valve 37 and the water supply valve 51 are opened, the rinsing agent is discharged downward along the rinsing agent discharge pipe 35 and the rinsing agent discharged downward is formed on the downstream side of the rinsing agent valve 37. Joined with the wash water supplied from) is supplied into the washing tank (7). When the rinsing agent and the washing water are supplied, the control unit 60 determines whether or not the appropriate amount of the rinsing agent has been added according to the washing mode selected by the user (S7), and the rinsing agent valve 37 until the appropriate amount of the rinsing agent is supplied. The water supply valve 51 is opened (S6).

When the appropriate amount of rinsing agent is added according to the selection mode, the controller 60 closes the rinsing agent valve 37 to stop supply of the rinsing agent (S8). When the supply of the rinsing agent is stopped, the control unit 60 determines whether the level of the washing water is initially higher than or equal to the set level (S9), and when it is determined that the level of the washing water is higher than or equal to the set level, the water supply valve 51 is closed. After the last rinse stroke proceeds (S10, S11). When the last rinsing stroke is completed, the control unit 60 ends the washing operation after performing the dehydration stroke (S12).

As such, the liquid discharge pipe is connected to the liquid container and the liquid flows out; A water supply pipe communicating with the liquid discharge pipe and supplying the washing water into the washing tank; A liquid valve for controlling the liquid contained in the liquid container; A water supply valve for regulating water supply from the water supply pipe; By controlling the liquid valve and the water supply valve according to the selected washing mode to provide a control unit to control the outflow of the liquid and wash water, it is possible to prevent the liquid from adhering to the liquid outflow pipe when supplying a viscous liquid, washing tank It is possible to improve the flow of the rinsing agent supplied to.

Although the above and the embodiments have been described with respect to a washing machine equipped with a rinsing agent container containing a rinsing agent, it is a matter of course that a liquid detergent container and a bleaching container can be installed to communicate with the water supply pipe.

As described above, according to the present invention, there is provided a washing machine and a control method thereof, which can prevent a relatively viscous rinsing agent from sticking to the liquid outflow tube and improve the flow of the rinsing agent supplied to the washing tank. .

Claims (4)

A washing machine having a casing, a washing tank rotatably installed in the casing, a liquid container provided in the casing for containing a liquid, and a water supply valve for supplying washing water from an external water supply device, A liquid discharge pipe connected to the liquid container to discharge the liquid; A liquid valve provided in one region of the liquid discharge pipe and controlling the outflow of the liquid contained in the liquid container; A water supply pipe supplying the wash water to the washing tank and joining the liquid discharge pipe at a downstream side of the liquid valve; And a control unit controlling the liquid valve and the water supply valve to regulate the outflow of the liquid and the wash water according to the selected washing mode. The method of claim 1, The liquid container is a washing machine, characterized in that the rinsing container containing a rinsing agent. A casing, a washing tank rotatably installed in the casing, a liquid container provided in the casing to receive a liquid material, and a liquid discharge pipe connected to the liquid container to discharge the liquid material; Control of the washing machine provided in one region of the liquid discharge pipe and has a liquid valve for controlling the flow of the liquid contained in the liquid container, a water supply pipe for supplying the wash water to the washing tank, and a water supply valve for regulating the water supply from the water supply pipe In the method, Joining the water supply pipe and the liquid discharge pipe at a downstream side of the liquid valve; Determining supply times of the liquid and the wash water according to the selected washing mode; Supplying the liquid and the washing water into the washing tank; The control method of the washing machine comprising the step of closing the liquid valve by determining the appropriate amount of the liquid input. The method of claim 2, The liquid container is a control method of a washing machine, characterized in that the rinse container containing a rinsing agent