KR19990014958A - Horizontal state display device of automatic washing machine and its control method - Google Patents

Abstract

The present invention relates to a horizontal state display device and a control method of the automatic washing machine, and a horizontal state sensing means for detecting a horizontal state of the housing, and the horizontal state detecting means detects the horizontal state before and after and the horizontal state Equipped with a horizontal state display means for displaying a horizontal state with light, when the user applies power, the horizontal state display device easily informs the user of the horizontal state of the housing so that the tilt state of the automatic washing machine can be easily determined. It can be adjusted by, and has a very excellent effect that can eliminate the vibration or noise generated when the horizontal adjustment is poor during the dehydration operation of the automatic washing machine.

Description

Horizontal state display device of automatic washing machine and its control method

The present invention relates to a horizontal state display device and a control method of the automatic washing machine, and to easily display the inclined state of the automatic washing machine and to remove vibrations or noises caused by poor leveling during dehydration. A horizontal state display device and a control method thereof.

As shown in FIG. 1, a conventional fully automatic washing machine has a housing 101 for shape maintenance and internal protection, and a washing tank 103 is installed inside the housing 101 to wash a laundry cloth.

On the side of the housing 101, the movement handle 107 is shaped so that the user inserts his hand to move the washing machine. On the back of the housing 101, a drain hose 109 is installed to drain the wash water that washes the laundry cloth in the washing tank 103.

A power cord and a power plug 111 are connected to the housing 101 to supply a voltage to a washing motor (not shown) in the housing 101. The bottom of the housing 101 is provided with a washing horizontal adjusting leg 113 to adjust the horizontality of the housing 101.

As illustrated in FIG. 2, a key input unit 105 may be provided on a surface of the upper front surface of the housing to input a user's operation command.

The key input means 105 is a washing water amount adjustment key 115 for selecting the amount of water to adjust the amount of washing, a cold and hot water selection key 117 for selecting cold and hot water of the washing water, and the washing water The water control key 119 for adjusting the intensity of the water of the washing, washing, rinsing, dehydration key 121 to select the number and time of washing, rinsing, dehydration, and the like, and operates the input element of the selected washing process It consists of an operation for pausing the washing process and a pause key 123, and a coskey 125 for selecting a washing course by selecting one of several kinds of fabrics set in advance and informing the timing of putting the fabric softener.

On the left side of the key input means 105 there is a horizontal state display means 127 showing the horizontal state of the automatic washing machine.

In the horizontal state display means 127 of the automatic washing machine, when the water droplets of the horizontal state display means 127 are biased backward, it means that the front side of the automatic washing machine is low. When the water droplets of the horizontal state display means 127 are biased forward, the rear side of the automatic washing machine is low. When the water droplet of the horizontal state display means 127 is biased to the left, it means that the right side of the automatic washing machine is low. When the water droplet of the horizontal state display means 127 is biased to the right, it means that the left side of the automatic washing machine is low.

However, the horizontal state display device 127 of the automatic washing machine as described above has a difficulty in leveling the automatic washing machine when a user who does not have expertise in the horizontal state display means 127 changes the position of the automatic washing machine. The tilted direction of the fully automatic washing machine and the biased direction of the water droplets were reversed, and thus could be misjudged and the horizontal adjustment could fail.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a horizontal state display device and a control method of the automatic washing machine, which can easily and accurately display the tilting state of the automatic washing machine.

In order to achieve the above object, the horizontal state display apparatus of the automatic washing machine according to the present invention includes a horizontal state detecting means for detecting a horizontal state of the housing, and horizontal and horizontal horizontal states and horizontal and horizontal states in the horizontal state detecting means. Characterized in that the horizontal state display means for displaying the horizontal state with light.

In addition, the control method of the horizontal state display device of the automatic washing machine according to the present invention includes a horizontal state detection step of detecting a horizontal state of the housing, and a first detection signal, a second detection signal for detecting a horizontal state before and after the horizontal state detection step. And a horizontal state displaying step of displaying an inclined state of the housing by a third sensing signal and a fourth sensing signal for detecting a horizontal left and right horizontal states.

1 is an external perspective view of a conventional fully automatic washing machine,

2 is a detailed view showing a horizontal state display device and a key input means of a conventional fully automatic washing machine;

3 is a perspective view of an embodiment of the present invention;

4 is a detailed view showing a horizontal state display device and a key input means according to an embodiment of the present invention;

5 is a three-dimensional view showing a sensing means in the horizontal state display device according to an embodiment of the present invention;

6 is a control circuit block diagram of a horizontal state display device of a fully automatic washing machine according to an embodiment of the present invention;

7 is a flow chart showing a control method of the horizontal state display apparatus according to an embodiment of the present invention.

* Description of the main parts of the drawings *

101: housing 102: cleaner

103: washing tank and dehydration tank 104: balance device

106: key input means 107: moving handle

108: level display means 109: drain hose

110: first liquid crystal display means 111: power cord and power plug

112: second liquid crystal display means 113: washing leg

114: third liquid crystal display means 116: fourth liquid crystal display means

118: fifth liquid crystal display means 120A: front and rear horizontal state detection means

120B: left and right horizontal state detection means 122: light emitting unit

123: blocking liquid 124: light receiving unit

126: blocking film 130: power supply means

132: water supply valve 134: washing motor drive circuit

136: washing motor 137: drain valve

138: display means 140: sound generating means

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

As shown in FIG. 3, in the fully automatic washing machine of the present invention, a housing 101 which maintains a shape and protects an inside thereof is formed outside. A tub (not shown) is installed in the housing 101 to store the wash water at the time of washing. Inside the tub (not shown), a dehydration tank 103 having a washing hole 102 is installed so that the washing water is scattered by the centrifugal separation during the dehydration operation.

The dehydration tank 103 is a washing tank 103 for washing the laundry cloth in the laundry administration. The upper end of the dehydration tank 103 is equipped with a balance device 104 is loaded with a liquid therein to reduce the unbalance during the dehydration stroke.

On the surface of the upper front surface of the housing 101, a key input means 106 is installed to input the washing process by the user.

As shown in Figure 4, the key input means 106 is a washing water amount adjustment key 115 for adjusting the washing water amount by selecting the amount of water, and cold and hot water selection keys for selecting cold and hot water of the washing water 117, a water adjustment key 119 for adjusting the intensity of the water of the washing water, a washing, rinsing, and a dehydration key 121 for selecting the number and time of washing, rinsing, and dehydration, and the selected washing. An operation and pause key 123 for operating an input element of the process and pausing the washing process, and a washing course can be selected by selecting one of several types of fabrics set in advance, and a coskey indicating when to put the fabric softener ( 125).

On the left side of the key input means 106, horizontal state display means 108 for displaying the horizontal state of the automatic washing machine is connected to the control means 128 described later.

The horizontal state display means 108 includes first liquid crystal display means 110 which is turned on when the rear and the left side of the housing are tilted, and second liquid crystal display means 112 which is turned on when the rear and the right side of the housing are tilted. ) And third liquid crystal display means 114 which is turned on when the front and the left side of the housing are tilted, and fourth liquid crystal display means 116 which is turned on when the front and the right side of the housing are tilted, the control means described later. (128).

In addition, the fifth liquid crystal display means 118, which emits light when the horizontal state of the automatic washing machine is maintained, is located at the center of the horizontal state display means 108 and connected to the control means 128 described later. The liquid crystal display means is an LED.

As shown in FIG. 5, the sensing means 120A and 120B include a blocking liquid 123 that flows in a sealed container to block light, and emits light 122A and 122B that emits light into the container outside the container. , 122C, 122D, and the light receiving units 124A. 124B, 124C, and 124D that receive light emitted from the light emitting units 122A, 122B, and 122C 122D, and the light emitting units 122A, 122B, 122C, and 122D. In order to prevent the light from affecting the other light receiving unit, the blocking film 126 may be positioned at the center of the sealed container to allow the blocking liquid to flow.

The sensing means 120A and 120B are arranged vertically with respect to the front and rear sensing means 120A for detecting the inclination of the front and rear, and the left and right sensing means 120B for sensing the inclination of the left and right. Two optical sensors are attached to each of the sensing means 120A and 120B and connected to the control means 128 described later.

The front and rear detecting means 120A for detecting the front and rear has a light emitting unit 122A and a light receiving unit 124A which operate when the automatic washing machine is tilted forward, a light emitting unit 122B which operates when the automatic washing machine is tilted backward, and Light-receiving portion 124B.

The left and right sensing means 120B for detecting left and right are light emitting parts 122C and light receiving parts 124C which operate when the automatic washing machine is tilted to the right and light emitting units 122D which operate when the automatic washing machine is tilted to the left. And a light receiving unit 124D.

The sealed container of the sensing means 120A and 120B has a length larger than the width so that the front and rear sensing means 120A are shaped so as not to be affected by the inclination of the left and right, and the left and right sensing means 120B are inclined back and forth. It is shaped so that each function can be performed independently by being shaped so as not to be affected. In addition, the blocking film 126 has a passage formed at a lower portion thereof to allow the blocking liquid 123 in the container to move.

As shown in FIG. 6, the control means is a microcomputer for controlling the whole process of the washing input to the key input means 106.

The power supply means 130 is connected to the control means 128 to receive an AC voltage of 220V from an external AC power source and to supply a 5V DC voltage to the control means 128.

The key input means 106 is connected to the control means 128 to input a user's operation command regarding washing to the control means 128.

The water supply valve 132 is connected to the control means 128 to open and close the water supply pipe by receiving a control signal from the control means 128.

The washing motor driving circuit 134 is connected to the control means 128 to receive a control signal from the control means 128 and apply a voltage having a direction to the washing motor 136.

The drain valve 138 is connected to the control means 128 to receive the control signal from the control means 128 to drain the contaminated wash water.

The notification means comprises a display means 138 for receiving a notification signal output from the control means 128 to display a washing state, and sound generating means 140 for outputting a sound related to the washing state.

Hereinafter, the effect of the horizontal state display means and the control method of the automatic washing machine according to an embodiment of the present invention in connection with the horizontal state display means and the control method of the automatic washing machine according to an embodiment of the present invention configured as described above It explains in detail.

First, as an initial condition for explaining the operation, it is assumed that the voltage is not yet supplied to the power supply means 130 from an external AC power source.

First, when the user presses the power supply button of the power supply means 130, an AC voltage of 220V is output to the power supply means 130 from an external AC power source. The DC voltage of 5V is supplied from the power supply means 130 to the control means 128.

Hereinafter, S (STEP) means a step.

In step S1, the control means 128 starts the horizontal detection of the fully automatic washing machine.

In step S2, the control means 128 determines whether the detection signal output from the front and rear sensing means 120A is P1 = P2 = LOW.

The P1 is a signal level for inputting the sensing signal detected by the front and rear sensing means 120A to the control means 128 when the automatic washing machine is tilted forward. The P2 is a signal level for inputting the sensing signal detected by the front and rear sensing means 120A to the control means 128 when the automatic washing machine is tilted backward.

The front and rear sensing means 120A increases the sensitivity of the signal by turning on the phototransistor when the light emitted from the light emitting diodes of the light emitting units 122A and 122B turns on the phototransistors of the light receiving units 124A and 124B. T1 is turned off and a high level signal is input to the control means 128.

On the other hand, the front and rear sensing means 120A is a phototransistor if the light emitted from the light emitting diodes of the light emitting parts 122A and 122B does not reach the phototransistors of the light receiving parts 124A and 124B by the blocking liquid 123. Is turned off and the transistor T1 for increasing signal sensitivity by turning off the phototransistor is turned on so that a low level signal is input to the control means 128. The operation principle of the left and right sensing means 120B is as described above.

When P1 = P2 = LOW, that is, when the front and rear horizontal state of the automatic washing machine is maintained, the control means may detect the detection signal of each LOW level detected by the light receiving units 124A and 124B of the front and rear sensing means 120A. 128).

The control means 128 proceeds to step S3 (if YES) when it is determined that the detection signal is P1 = P2 = LOW.

In step S3, the control means 128 determines whether the detection signal output from the left and right detection means 120B is P3 = P4 = LOW.

The P3 is a signal level for inputting the detection signal detected by the left and right detection means 120B to the control means 128 when the automatic washing machine is tilted to the right. The P4 is a signal level for inputting the detection signal detected by the left and right detection means 120B to the control means 128 when the automatic washing machine is tilted to the left.

When P3 = P4 = LOW, that is, when the horizontal washing state of the automatic washing machine is maintained, the control means 128 detects the detection signals of the respective LOW levels from the light receiving units 124C and 124D of the left and right sensing means 120B. Type in

The control means 128 proceeds to step S4 (if YES) when it is determined that the detection signal is P3 = P4 = LOW.

In step S4, the control means 128 determines that the horizontal state of the automatic washing machine is maintained and drives the LED5 118.

On the other hand, if it is determined in step S2 that the detection signal input to the control means 128 is not P1 = P2 = LOW, the process proceeds to step S5.

In step S5, the control means 128 determines whether the detection signal output from the front and rear sensing means 120A is P1 = LOW and P2 = HIGH. If it is determined that the detection signals input to the control means 128 are P1 = LOW and P2 = HIGH, the process proceeds to step S6 (if YES).

When P1 = LOW and P2 = HIGH, i.e., when the rear of the automatic washing machine is low, a state in which a high level detection signal is input to the control means 128 is received from the light receiving part 124B of the front and rear sensing means 120A. it means.

In step S6, the control means 128 determines whether the detection signal output from the left and right detection means 120B is P3 = P4 = LOW. If it is determined that the detection signal input to the control means 128 is P3 = P4 = LOW, the flow proceeds to step S7 (if YES).

In step S7, the control means combines the front and rear horizontal detection and left and right horizontal detection by determining the rear of the automatic washing machine to determine the control signal for driving the LED1 (110) and LED2 (112). Type in The LED1 110 and the LED2 112 are driven by the control signal input to the control means 128.

On the other hand, in step S5, the control means 128 proceeds to step S8 (if NO) when it is determined that the detection signal output from the front and rear sensing means 120A is not P1 = LOW, P2 = HIGH.

When P1 = HIGH and P2 = LOW, that is, when the front side of the automatic washing machine is low, it means a state in which a high level detection signal is input to the control unit 128 from the light receiving unit 124A of the detection unit 120A. do.

In step S8, the control means 128 determines whether the detection signal output from the left and right detection means 120B is P3 = P4 = LOW. If it is determined that the detection signal input to the control means 128 is P3 = P4 = LOW, the flow proceeds to step S9 (if YES).

In step S9, the control means combines the front and rear horizontal detection and left and right horizontal detection results to determine that the front of the automatic washing machine is low to control the control signal for driving the LED3 114 and the LED4 116. Type in The LED 3 114 and the LED 4 116 are driven by the control signal input to the control means 128.

On the other hand, if it is determined in S8 that the detection signal input to the control means 128 is not P3 = P4 = LOW (if NO), the process proceeds to step S10.

In step S10, the control means 128 determines whether the detection signal output from the left and right detection means 120B is P3 = LOW, P4 = HIGH. If it is determined that the detected signal input to the control means 128 is P3 = LOW, P4 = HIGH (if YES), the process proceeds to step S11.

When P3 = LOW and P4 = HIGH, i.e., when the front and the left side of the automatic washing machine are inclined, the detection means having the HIGH level is detected from the light receiving units 124A and 124D of the sensing means 120A and 120B, respectively. 128).

In step S11, the control means 128 outputs a control signal for driving the LED3 114 by determining that the front and left sides of the automatic washing machine are low by combining the determination result of the horizontal horizontal detection and the horizontal horizontal detection. The LED3 128 is driven by the control signal output from the control means 128.

On the other hand, if it is determined in step S10 that the detection signal input to the control means 128 is not P3 = LOW, P4 = HIGH (if NO), the flow advances to step S12.

When P3 = HIGH and P4 = LOW, that is, when the fully automatic washing machine is tilted forward and rightward, the control means may generate a high level detection signal from the light receiving units 124A and 124C of the sensing means 120A and 120B, respectively. 128).

In step S12, the control means 128 outputs a control signal for driving the LED4 116 by determining that the front and right sides of the automatic washing machine are low by combining the determination result of the horizontal horizontal detection and the horizontal horizontal detection. The LED 4 116 is driven by the control signal output from the control means 128.

On the other hand, if it is determined in step S6 that the control signal input to the control means 128 is not P3 = P4 = LOW (if NO), the flow advances to step S13.

In step S13, the control means 128 determines whether the detection signal output from the left and right detection means 120B is P3 = LOW and P4 = HIGH. If it is determined that the detected signals input to the control means 128 are P3 = LOW and P4 = HIGH, the process proceeds to step S14 (if YES).

When P3 = LOW and P4 = HIGH, i.e., when the automatic washing machine is tilted backwards and leftwards, the control means may generate a detection signal having a high level from the light receiving units 124B and 124D of the sensing means 120A and 120B, respectively. 128).

In step S14, the control means 128 outputs a control signal for driving the LED1 110 by determining that the rear and left sides of the automatic washing machine are low by combining the determination result of the horizontal front and rear horizontal detection and the horizontal horizontal detection. The LED1 110 is driven by the control signal output from the control means 128.

On the other hand, if it is determined in step S13 that the detection signal input to the control means 128 is not P3 = LOW, P4 = HIGH (if NO), the flow advances to step S15.

When P3 = HIGH and P4 = LOW, that is, when the automatic washing machine is tilted to the rear and right side, the control means receives the detection signal of the HIGH level from the light receiving units 124B and 124C of the sensing means 120A and 120B, respectively. Enter (128).

In step S15, the control unit 128 outputs a control signal for driving the LED2 112 by determining that the rear and right sides of the automatic washing machine are low by combining the determination result of the horizontal horizontal detection and the horizontal horizontal detection. The LED2 112 is driven by the control signal output from the control means 128.

On the other hand, when it is determined in step S3 that the control signal input to the control means 128 is not P3 = P4 = LOW, the process proceeds to step 16 (NO).

In step S16, the control means 128 determines whether the detection signal output from the left and right detection means 120B is P3 = LOW, P4 = HIGH. If it is determined that the detected signals input to the control means 128 are P3 = LOW and P4 = HIGH (if YES), the process proceeds to step S17.

In step S17, the control means 128 determines the left side of the automatic washing machine by combining the horizontal and horizontal horizontal detection and the determination result of the horizontal horizontal detection, and outputs a control signal for driving the LED1 110 and the LED3 114. . The LED1 110 and the LED3 114 are driven by the control signal output from the control means 128.

On the other hand, if it is determined in step S16 that the detection signal input to the control means 128 is not P3 = LOW, P4 = HIGH (if NO), the flow advances to step S18.

In step S18, the control means 128 determines the right side of the automatic washing machine by combining the horizontal and horizontal horizontal detection results, and outputs a control signal for driving the LED2 112 and the LED4 116. . The LED2 112 and the LED4 116 are driven by the control signal output from the control means 128.

As described above, according to the horizontal state display apparatus and the control method of the automatic washing machine according to the present invention, when the user applies the power, the horizontal state display apparatus of the automatic washing machine turns on the liquid crystal display means in the inclined direction so that the user is easily tilted. It is possible to adjust the horizontal direction by determining the direction, there is a very excellent effect that can eliminate the vibration or noise generated when the horizontal adjustment is poor during the dehydration administration of the automatic washing machine.

Claims (7)

Horizontal state detection means for detecting the horizontal state of the housing, Horizontal state display device of the automatic washing machine, characterized in that the horizontal state detection means is provided with a horizontal state display means for detecting the horizontal state of the front and rear and the horizontal state of the housing by light. The horizontal state display apparatus according to claim 1, further comprising a sound generating means for generating a sound when the housing is inclined in response to a detection signal sensed by the horizontal state detecting means. According to claim 1, wherein the horizontal state detection means and the light emitting unit for emitting light; Blocking liquid for blocking the light emitted from the light emitting portion flows in the sealed container as the housing is inclined; And a light receiving unit for receiving the light emitted from the light emitting unit by the flow of the blocking liquid. The horizontal state display apparatus of a fully automatic washing machine according to claim 3, further comprising a blocking film which blocks the light so that the light emitted from the light emitting unit is not input to the adjacent light receiving unit. The display apparatus of claim 1, wherein the horizontal state display means for displaying the inclined state of the housing comprises: first liquid crystal display means for displaying when the horizontal state of the housing is inclined at the rear side and the left side; Second liquid crystal display means for displaying a horizontal state of the housing when the rear side and the right side are inclined; Third liquid crystal display means for displaying when the horizontal state of the housing is inclined to the front side and the left side; Fourth liquid crystal display means for displaying a horizontal state of the housing when the front side and the right side are inclined; And a fifth liquid crystal display means for displaying the housing when the housing is in a horizontal state. A horizontal state detecting step of detecting a horizontal state of the housing; In the horizontal state detection step, the horizontal state indicating the inclined state of the housing by the first detection signal, the second detection signal for detecting the horizontal state before and after, the third detection signal for detecting the horizontal left and right, and the fourth detection signal A control method of a horizontal state display device of a fully automatic washing machine, characterized in that the status display step. The method of claim 6, further comprising a sound generating step of informing a sound when the housing is inclined in the horizontal state detecting step.