KR20020000036A - Method and apparatus for displaying a error of washing machine - Google Patents

Abstract

PURPOSE: A device and a method for displaying errors are provided to quickly and exactly compensate the errors by displaying the generation and the solving method of the errors. CONSTITUTION: A displaying device of errors in a washing machine comprises an interface(20) to exchange data with a PC(10); a key input unit(30) to select a wanted course and to input an operation command; a detecting unit(40) to detect errors such as a water level, an amount of the laundry, the opening of a door and the unbalance; a storing unit(50) to store a solving method and a guiding message; an LCD(Liquid Crystal Display)(60) to display the error and the solving method; a system microcomputer(70) to display the solving method on the LCD and to control the data communication with an external device through the interface(20); and a load driving unit(80) to control the driving of the load according to a control signal of the system microcomputer. Thereby, a user compensates the errors more easily.

Description

Method and apparatus for displaying a error of washing machine

The present invention relates to a washing machine, and more particularly, to an error display device and method of the washing machine.

In general, a washing machine performs washing strokes, rinsing strokes, and dehydrating strokes by rotating a rotating tub and a pulsator through a driving force of a motor, and putting washing water and laundry together inside a rotating tub and stirring them to wash laundry and washing. It is a device that washes using friction of water and a rotating tub.

Such a washing machine stops the washing administration when various errors such as door opening, unbalance, water level detection, drainage and water supply during washing are notified of an error occurrence to the user by using a display means.

Hereinafter, an error display apparatus and method of a washing machine according to the related art will be described with reference to the accompanying drawings.

As shown in FIG. 1, an error display apparatus of a conventional washing machine includes a key input unit 1 for inputting a course selection and a corresponding operation command desired by a user, and detecting a water level, a quantity of water, a door opening, an unbalance, and the like. A motor (not shown) according to a control signal of the sensing unit 2, a system microcomputer 3 for controlling the stroke of the washing machine according to an operation command input through the key input unit 1, and the system microcomputer 3. And a display for displaying an operation state or an error occurrence of the washing machine according to the control unit of the load driver 4 for driving various loads such as a water supply valve (not shown) and a drain valve (not shown) and the system microcomputer 3. It consists of a part (5). In this case, the display unit 5 is composed of a light emitting diode (LED).

First, when a user puts laundry in a washing machine and presses a key of the key input unit 1 to input a washing command, the system microcomputer 3 applies a control signal to the load driving unit 4 according to a preset washing procedure. Then, the motor, water supply valve and drain valve are sequentially driven to proceed with washing.

As described above, the washing unit 2 detects a water level, a quantity, a door opening, an unbalance, and outputs a signal to the system microcomputer 3, and the system microcomputer 3 inputs an error detection signal. When the error occurs in the corresponding part is controlled to be displayed through the display unit (5).

For example, if an error occurs in the water level detection in the sensing unit 2, a control signal is applied to the load driving unit 4 to stop washing, and a control signal is applied to the display unit 5 to generate an error. Display.

An error display method of the washing machine according to the related art configured as described above will be described with reference to FIG. 2.

First, when a user applies power and inputs an operation button, the washing process is performed by sequentially driving a motor, a water supply valve, a drain valve, and the like (S1-S3).

Subsequently, it is determined whether the washing administration is completed (S4).

As a result of the determination (S4), if the washing administration is completed, the process is terminated. If the washing administration is not completed, it is determined whether an error has occurred (S5).

Subsequently, if an error occurs, the determination result (S5) stops the washing operation, and outputs the corresponding error message (S6).

Then, it is determined whether the error is corrected, and if the error is corrected, the washing is restarted, and if the error is not corrected, the washing is terminated with the stopped state (S7).

As described above, the error display apparatus and method of the washing machine according to the related art display the display unit only by indicating that an error has occurred because the display unit is composed of LEDs, so that the user can quickly correct the error and wash. There was a problem that can not be resumed.

The present invention has been made to solve this problem, by using an LCD to display the error occurrence and how to respond to the error error display of the washing machine to enable the user to correct the error more quickly and accurately It is an object of the present invention to provide an apparatus and method.

1 is a block diagram schematically showing the configuration of a washing machine according to the prior art.

2 is a flowchart illustrating an error display method of a washing machine according to the related art.

3 is a block diagram showing the configuration of a washing machine according to the present invention.

4 is a flowchart illustrating an error display method of a washing machine according to the present invention.

5 to 10 is a view showing an embodiment according to the error display method of the washing machine according to the present invention

Explanation of symbols for main parts of drawings

10: PC 20: Interface

30: key input unit 40: detection unit

50: storage unit 60: liquid crystal display (LCD)

70: system micom 80: load driving unit

The error display device of the washing machine according to the present invention for achieving the above object includes an interface for exchanging data with an external device, a key input unit for inputting a course selection desired by the user, and a corresponding operation command, water level, quantity, A detector for detecting an error such as door open and unbalance, a storage unit for storing a washing machine operation algorithm, a corresponding method guide message according to an error of each operation, and a corresponding error and response if an error is detected through the detector. A liquid crystal display for displaying a method, and if an error is detected by the detection unit, a corresponding method of controlling the error is extracted from the storage unit and controlled to be displayed on the LCD. A system micom that controls data communication with an external device through There is a configuration including the load drive unit for controlling the driving of the load according to the control signal has its characteristics.

An error display method of a washing machine according to the present invention for achieving the above object is an error display method of a washing machine having a driving motor and a liquid crystal display (LCD), the user to detect the amount of input when the operation button input And supplying water when the quantity is detected, determining whether the water supply is normal, and if the water supply is not normal, displaying error messages and tips according to a water supply error on the LCD, and displaying the displayed help. A step of correcting an error with reference to, determining whether water supply is completed up to the level according to the detected quantity if the water supply is normally performed, and opening the lid when the water supply is completed up to the level corresponding to the quantity of discharge, the driving motor Detects abnormalities and errors according to each washing administration and detects each And displaying a help corresponding to the error of the error on the LCD, and correcting the error with reference to the displayed help.

Hereinafter, an error display apparatus and method of a washing machine according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a block diagram illustrating an error display apparatus of the washing machine according to the present invention, FIG. 4 is a flowchart illustrating an error display method of the washing machine according to the present invention, and FIGS. 5 to 10 are error displays of the washing machine according to the present invention. An illustration of an embodiment of the method.

As shown in FIG. 3, an error display apparatus of a washing machine according to the present invention includes an interface 20 for exchanging data with a PC 10 and a key input unit for inputting a course selection and a corresponding operation command desired by a user. 30), a detector 40 for detecting an error such as water level, quantity, door open and unbalance, and a storage unit 50 for storing a washing machine operation algorithm and a corresponding method guide message according to an error of each operation. When an error is detected through the detection unit 40, a liquid crystal display (hereinafter referred to as LCD) 60 for displaying the corresponding error and corresponding method, and when the error is detected by the detection unit 40. A system for controlling a corresponding method to extract the error from the storage unit 50 to be displayed on the LCD 60 and controlling data communication with an external device through the interface 20 according to a user's request. It consists yikeom 70 and the load drive unit 80 for controlling the driving of the load according to a control signal from the system microcomputer 70.

When the user selects a desired course through the key input unit 30, the error display device of the washing machine according to the present invention configured as described above recognizes this in the system microcomputer 70 and outputs a control signal to drive the corresponding load.

In addition, while driving the load in the system microcomputer 70, the detection unit 40 detects an error occurrence such as water level, quantity, door opening and unbalance, and outputs an error detection signal to the system microcomputer 70.

When the detection unit 40 detects an error, the system microcomputer 70 outputs the corresponding error message to the LCD 60, and at the same time, an error response method for correcting the corresponding error from the storage unit 50. Extracted and displayed on the LCD (60).

Then, the user corrects the corresponding error by referring to the error response method displayed on the LCD 60 and proceeds with washing. On the other hand, if a fatal error is detected by the detection unit 40 outputs a message that is a fatal error to the LCD 60, and at the same time outputs a guide message to contact the service center.

As described above, the error display method of the washing machine according to the present invention will be described with reference to FIG.

When the operation button is input, the quantity of water is detected, and when the quantity of detection is completed, the water supply stroke is started (S13-S14).

Next, it is determined whether water supply is normally performed (S15).

As a result of the determination (S15), if the water supply is not made normally, the LCD 60 outputs a message for checking the water supply status and the water supply status (S16).

Then, the water supply error corresponding method is output (S17).

Then, the error is corrected according to the water supply error corresponding method, and when the operation button is pressed, the flow returns to step S14 to resume water supply (S18).

On the other hand, if it is determined that the water supply is normal (S15), it is determined whether water supply is completed up to the corresponding water level according to the amount of water (S19).

Subsequently, when the water supply is not completed until the corresponding water level according to the detected amount of water (S19), it is determined that a fatal error has occurred and outputs an error message (PE), and outputs a guide message for inquiring to the service center ( S20).

On the other hand, if the water supply is completed to the corresponding water level according to the detected amount of water (S19), it is detected whether the lid is closed (S21).

Subsequently, the determination result (S21), if the lid is not closed, displays the lid open on the LCD 60, outputs a message to close the lid and returns to the step (S21) (S22).

In addition, the determination result (S21), if the lid is closed to start the washing administration (S23).

Then, it is determined whether or not there is an abnormality in the driving motor in the washing operation (S24).

Subsequently, when the abnormality is generated in the driving motor (S24), it is determined that a fatal error has occurred, and an error message (CE or LE) according to the abnormal condition is displayed, and a guide message for inquiring to the service center is output. S25).

On the other hand, the determination result (S24), if the abnormality does not occur in the drive motor determines whether or not the washing operation is completed normally (S26).

Subsequently, when the determination result (S26), the washing administration is completed, drainage is started (S27).

And it is determined whether the drainage is normally completed (S28).

As a result of the determination (S28), if the drainage is not completed normally, the non-drainage and drainage hose confirmation message is output to the LCD 60 (S29).

Subsequently, the drainage error response method is displayed, and after correcting the corresponding error with reference to the drainage error, when the user inputs an operation button, the drainage is resumed (S30).

On the other hand, if the determination result (S28), the drainage is normally completed, dehydration is started (S32).

Then, it is determined whether dehydration is normally completed (S33).

Subsequently, when the dehydration is completed normally (S33), washing is terminated.

On the other hand, if the determination result (S33), if the dehydration is not completed normally outputs a non-dehydration and imbalance confirmation message (S34).

Then, the corresponding method for the dehydration error is output (S35).

Subsequently, the error is corrected with reference to the dehydration error countermeasure, and when the user inputs an operation button, the process returns to step S32 to resume dehydration (S36).

As described above, an error display method of the washing machine according to the present invention according to each occurrence of an error will be described with reference to FIGS. 5 to 10.

First, the user selects the washing course and inputs an operation button to detect the quantity of water and start water supply. At this time, if the water supply is not normally made, as shown in Fig. 5 (a) 'not watering, check the water supply status' and displays the picture of the faucet shape.

In this case, the criterion for determining that the water supply is not normally performed may display an error message when the water level does not reach the preset water level within a preset time or when there is no frequency change within a predetermined time after the preset water level is reached.

Subsequently, as shown in FIG. 5 (b), '1. Check if the faucet is locked, 2. Check the water supply hose connection, 3. Check the water level and freeze status, and press the operation button. ' Display the response to the water supply error.

Then, the user checks the state of the corresponding part with reference to the error response method displayed as shown in (b) of FIG. 5, corrects the abnormal part, and inputs an operation button to resume water supply.

On the other hand, the water supply is normal, but if the water supply does not reach the water level according to the detected amount of water or if the water level is exceeded, it is determined that a fatal error has occurred and displays an error message (PE) as shown in FIG. Please contact Prints a prompt.

That is, since the error occurs when the frequency of the water level sensor (not shown) is 10 kHz or less or 30 kHz or more, error message PE is displayed.

In addition, water supply is normally completed up to the water level corresponding to the detected quantity, and when the lid is detected, as shown in Fig. 7, 'open the lid of the washing machine, please close the lid.' And a picture of the indication to close the lid of the washing machine is displayed on the LCD (60).

In addition, during the washing process, the controller continuously detects an abnormality of the driving motor, and if an abnormality of the driving motor is detected, this is a fatal error, and thus displays an error message (CE or LE) as shown in FIG. Please contact the center. '

Herein, the CE is an error message which is determined to be impossible to release when the drive motor is turned off for a predetermined number of times or more during the entire stroke in the OFF state, and LE is an error message that is output when the rotation of the drive motor is very small.

Subsequently, washing was performed normally, but if the drainage is not completed normally, an error occurred in the drainage stroke. Thus, as shown in FIG. 9 (a), the message 'not drained, check the drain hose' and the drain valve of the washing machine are indicated by X. Display the pictures at the same time.

That is, if the initial water level is not reached within the preset time, it is determined that the drainage is not completed normally and outputs an error message.

And as shown in Figure 9 (b) '1. Please drop down the drain hose, 2. Check whether the drain hose is bent, 3. Press the operation button after checking the drain hose freeze.' Display.

Finally, the drainage was also normal, but if the dehydration is not completed normally, an error occurred in the dehydration administration, so as shown in (a) of FIG. 10, the message 'not dehydrated, unbalance check' and the laundry are biased to one side inside the washing tank. Display the pictures at the same time.

And, as shown in Figure 10 (b), '1. Do not spread the laundry evenly, 2. After checking the washing machine horizontal state, please press the operation button.' Displays the response to the dehydration error.

As described above, the error display device and method of the washing machine according to the present invention detects the corresponding error from the start of the water supply stroke according to the amount of power supplied, and detects the corresponding error and displays a corresponding method corresponding to the detected error. ), The user can refer to this to correct the error, and when a fatal error occurs, the user can request a repair by referring to the guidance message for inquiring a service center.

As described above, the error display apparatus and method of the washing machine according to the present invention have the following effects.

First, when an error occurs, the corresponding error message is displayed on the LCD, and a corresponding method for correcting the error is simultaneously displayed so that the user can correct the error more easily by referring to the error message.

Second, when a fatal error occurs, the user's convenience may be increased by outputting a fatal error message and a guide message for inquiring a service center.

Claims (9)

An interface for exchanging data with an external device; A key input unit for inputting a course selection desired by the user and an operation command according thereto; A detector for detecting an error such as water level, quantity, door opening, and unbalance; A storage unit for storing a washing machine operation algorithm and a corresponding method guide message according to an error of each operation; A liquid crystal display (LCD) for displaying a corresponding error and a corresponding method when an error is detected through the detection unit; A system microcomputer for controlling a corresponding method of extracting an error from the storage unit to be displayed on the LCD when an error is detected by the detection unit, and controlling data communication with an external device through the interface according to a user's request; And, And a load driver for controlling the driving of the load according to the control signal of the system microcomputer. In the error display method of the washing machine having a drive motor and a liquid crystal display (LCD), Detecting a dose when the user inputs an operation button; Supplying water when the quantity is detected; Determining whether the water supply is normally performed, and if the water supply is not normally performed, displaying an error message and an error response method according to a water supply error on the LCD; Determining whether watering is completed up to the level according to the detected amount of water if the watering is normally performed; And, When the water supply is completed up to the water level according to the amount of water, the lid is opened, the abnormality of the drive motor and the error according to each washing administration, and the respective error messages and error detection method detected on the LCD is made Error display method of the washing machine characterized in that. The method of claim 2, Displaying an error message and help according to the water supply error Displaying a message on the LCD to confirm a water supply state because water supply is not possible if the water supply is not normally performed; Displaying an error response method according to the water supply error on the LCD; Correcting an error with reference to the help displayed on the LCD, and the error display method of the washing machine characterized in that the step of returning to the water supply step when the user inputs the operation button. The method of claim 3, wherein Displaying the help according to the water supply error on the LCD And displaying a guide message for inputting an operation button on the LCD after checking a faucet locked state, a water hose connection state, a water level, and a freezing state. The method of claim 2, If water is not supplied to the water level according to the quantity, And determining that a fatal error has occurred and displaying the error message (PE) and a guide message for contacting a service center on the LCD. The method of claim 2, Displaying an error response method corresponding to each detected error on the LCD, and correcting the error with reference to the displayed help Detecting opening of the lid when water supply is completed to the corresponding water level according to the quantity; Displaying a guide message on the LCD to close the lid when the lid is opened; Starting the washing stroke when the lid is closed, and determining whether there is an error in the driving motor during the washing stroke; Determining whether the washing operation is completed if there is no abnormality in the driving motor; If the washing administration is completed, starting the drainage stroke, determining whether the drainage stroke is completed; If the drain stroke is not completed, displaying a guide message and a drain stroke help to check the drain hose; Starting the dehydration stroke when the drainage stroke is completed, and determining whether the dehydration stroke is completed; If the dehydration administration is not completed, the error display method of the washing machine comprising the step of outputting a guide message for checking the imbalance, and displaying the dehydration administration help. The method of claim 6, If an abnormality is detected in the driving motor during the washing stroke Determining a fatal error error display method (CE or LE) according to the abnormal conditions, and displaying a guide message to contact the service center, the error display method of the washing machine characterized in that it further comprises. The method of claim 6, Displaying the drain stroke help Lowering the drain hose, checking the bending and freezing state of the drain hose and displaying a guide message to enter the operation button, the error display method of the washing machine. The method of claim 6, Displaying the dehydration administration help Evenly washing the laundry evenly, the error display method of the washing machine characterized in that the step of displaying a guide message to enter the operation button after checking the horizontal state of the washing machine.