JPH1057678A - Display method of water and detergent quantity in fully automatic washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to use the most suitable quantity of detergent to the quantity of washing, by judging the load of washing and displaying the water quantity in litter units based on the judgement of the load and the most suitable detergent quantity to the washing quantity. SOLUTION: Power is applied to a motor for a prescribed time to rotate a rotation blade at a step before putting washing into a washing tub and supplying water, and an inertial pulse number after the motor is stopped is detected by rotation of the rotation blade by inertia and the load quantity is judged from the inertial pulse number. A water quantity as the most suitable one for the judged load quantity is calculated precisely in litter units from the judged load quantity, and the corresponding quantity of detergent thereto is also calculated. Those judgement and calculation after inertial pulse number detection is performed before starting washing, which is at a step that water and a detergent are not put in yet. Since a lid of the washing machine is still opened at this time, when the open lid is detected by output from a lid switch, etc., quantities of calculates water and detergent are displayed on a display part 1 in the residual time in washing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display method for a fully automatic washing machine.

[0002]

2. Description of the Related Art In a fully automatic washing machine, a load of laundry is determined in advance before a washing operation is started, and a water amount and a detergent amount suitable for the load are automatically set based on a result of the determination. This is displayed on the display unit 1 as shown in FIG.

As is well known, a method of determining the load amount is, for example, that laundry is put into a washing tub, a motor is energized for a predetermined time before water is supplied as shown in FIG. Is stopped, the number of inertial pulses of rotation due to inertia is detected, and the load amount is determined based on the number of inertial pulses.

The correlation between the number of pulses and the amount of load is such that the amount of load increases as the number of inertial pulses decreases, as shown in FIG. That is, the larger the amount of laundry, the smaller the number of revolutions due to the inertia of the rotating blades after the power supply to the motor is stopped. By counting the number of inertial pulses, the amount of laundry is determined.

[0005] Based on the load thus determined, the amount of water is determined as shown in FIG. The amount of water is large, that is, the larger the amount of laundry, the higher the water level is to obtain a predetermined amount of water by setting the water level. This is set in advance.

Conventionally, the water level is set in five stages of "high", "medium", "low", "small" and "minimum" as shown in FIG. 6, for example. , 45 liters, 38 liters, and 25 liters, and these numerical displays 2 are indicated by LED (light emitting diode) lamps.

[0007] In accordance with the five levels of water level, an appropriate amount of detergent is also displayed on a measuring spoon shape display 3 using an LED (light emitting diode) lamp.

[0008]

Even if the accuracy of determination of the amount of load is improved and the amount of water and the amount of detergent corresponding to the amount of load can be calculated, for example, in units of 1 liter, the amount of water and the amount of detergent can be set in five steps. Since the calculated amount of water and the amount of detergent are displayed as those having the closest numerical values among the five levels, the washing is performed with these numerical values.

For this reason, the washing is not carried out with the water amount or the detergent amount most suitable for the determined load amount, and the detergent amount is too large, so that a large amount of foam is generated, the detergent is left, and the opposite. In some cases, the amount of detergent is too small to obtain sufficient detergency.

[0010] Further, since a display unit using LEDs for displaying the amount of water and the amount of detergent is separately required, a display space is required, and the LED substrate is also expensive.

An object of the present invention is to solve the inconvenience of the conventional example, and to display a numerical value of a water amount and a detergent amount which are most suitable for the determined load amount, and to use the numerical values to wash the remaining amount of the detergent. It is possible to prevent the occurrence of water, and to ensure sufficient detergency.Moreover, since the display of water and detergent is also used as another display, it does not require special extras and can be manufactured simply and inexpensively. It is an object of the present invention to provide a method for indicating the amount of water and the amount of detergent in a washing machine.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention firstly judges a load of laundry and sets a water amount and a detergent amount based on a result of the judgment of the load. In the display device of the washing machine, the amount of water is displayed in units of 1 liter based on the determination result of the load amount, and the amount of detergent corresponding to the amount of water is displayed on the display unit, so that the amount of water or the amount of detergent matches the load amount. The most suitable one can be displayed finely, and in this case, no extra display space is required for displaying the amount of water and the amount of detergent.

Second, the amount of water and the amount of detergent are displayed on a display for displaying the remaining time of the washing during the washing operation, so that when the remaining time is not yet displayed before the start of the washing operation, the remaining amount is displayed. Since the amount of water and detergent are displayed on the time display,
It does not matter if two display units are used in common.

Third, when the lid of the washing machine is opened before the start of the washing operation, the amount of water and the amount of detergent are displayed on the display unit. When the lid of the washing machine is closed during the washing operation, the display unit is displayed. Displays the remaining time of washing, automatically selects and sets the display contents when the lid is opened and closed, and when the lid is opened to put detergent before washing starts, the amount of water and the amount of detergent Is displayed, and the remaining time of the laundry is displayed when the lid is closed after the start of the laundry, so that necessary information can be reliably displayed when needed in the laundry process.

Fourth, since the water amount and the detergent amount are alternately displayed on the display unit, the water amount and the detergent amount, which are necessary information before the start of washing, can be displayed on one display unit.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a flowchart showing the operation of the method for displaying the amount of water and the amount of detergent in the fully automatic washing machine of the present invention. The display unit 1 for displaying the amount of water and the amount of detergent displayed by the method of the present invention will be described with reference to FIG. 1 is provided on the top panel of the washing machine as in the prior art, and includes a power switch 4, a start / pause button 5, a course selection button 6 for setting washing contents, a dirt button 7, and a reservation button as operation switches. 8. A dehydration button 9, a rinse button 10, and a wash button 11 are provided for the user to manually set the contents of washing.

As a display unit using an LED lamp for displaying the set washing contents, a display unit 12 for a course such as "standard" and a display unit for a water flow whose intensity is set according to the degree of dirt selected. 13. Dehydration time display 1
4. Rinsing number display unit 15, washing time display unit 16,
A display section 17 for remaining time during washing is provided.

On the other hand, a control device using a microcomputer or the like has a load amount corresponding to the number of inertial pulses as shown in FIG. 3 and a water level corresponding to the determined load amount as shown in FIG. Is set in advance.

Next, a method of displaying the amount of water and the amount of detergent will be described with reference to the flowchart of FIG. At the stage before the laundry is put into the washing tub and before water is supplied, the motor is energized for a certain period of time to rotate the rotor, and the number of inertia pulses after the motor is stopped is detected by the rotation of the rotor by inertia. To determine the load amount.

From the determined load amount, an optimum amount of water corresponding thereto is finely calculated in liter units, and a corresponding detergent amount is also calculated.

The determination and calculation after the detection of the number of inertial pulses are performed before the start of washing and at a stage where water or detergent has not yet been introduced into the washing tub. At this time, the lid of the washing machine is still open. When the lid opening is detected by the output from the lid switch or the like, the numerical values of the amount of water and the amount of detergent are displayed on the display unit 17 for the remaining time during the washing (steps (a) to (e)).

By the way, the detection of the opening of the lid is not the one in which the lid is opened in order to correct the bias of the clothes during the dehydration after the start of washing, but is determined as the one before the start of washing as described above. Therefore, when the lid is opened during dehydration, the amount of water and the amount of detergent are not displayed on the display unit 17 for the remaining time.

The water amount is displayed in units of liters, and the optimum amount of detergent is also displayed. The user can see the display and determine the optimum amount of water and the amount of detergent corresponding to the amount of laundry. Input. As an example, the detergent amount suitable for the water amount is such that the detergent concentration is the standard concentration (0.
133%) and the water volume is 25 liters To start.

The amount of water and the amount of detergent are displayed on the display unit 17 for one remaining time. By displaying them alternately, it is possible to display two different contents on one display unit 17. .

After the detergent is supplied, the lid is closed and water is supplied to the water level of the set water amount. If this is detected by the water level sensor, the washing operation is started. Since such washing is performed with the optimum amount of detergent for the amount of laundry, there is no generation of a lot of foam, no waste of detergent, and no shortage of detergency. During the washing, the lid is closed as described above, which is detected by the output from the lid switch. During the washing, the remaining time of the washing is displayed on the remaining time display section 17 by the operation of the control device. Displayed [Step (b)
(F)].

When the lid is opened during spin-drying, an error message is displayed because the deviation of the laundry is corrected (step (g)).

[0027]

As described above, the method for displaying the amount of water and the amount of detergent of the fully automatic washing machine of the present invention firstly determines the load of the laundry and determines the amount of water based on the result of the determination of the load. In the display device of the fully automatic washing machine for setting the amount of detergent, the amount of water is displayed in units of 1 liter based on the determination result of the amount of load, and the amount of detergent corresponding to the amount of water is displayed on the display unit, thereby reducing the amount of water. And the amount of detergent can be displayed finely as appropriate for the load amount, and washing is performed with the optimum amount of detergent in this way for the displayed amount of laundry, so a lot of foam is generated and detergent is wasted And do not
There is no shortage of detergency. Further, in this case, a display space for displaying the amount of water and the amount of detergent is not particularly required, and an LED lamp or the like for display is not required, so that the substrate can be designed at low cost.

Second, the amount of water and the amount of detergent are displayed on the display for displaying the remaining time of the washing during the washing operation, so that the remaining time is not displayed before the start of the washing operation. Since the amount of water and detergent are displayed on the time display,
It does not matter if two display units are used in common.

Third, when the lid of the washing machine is opened before the start of the washing operation, the amount of water and the amount of detergent are displayed on the display section. When the lid of the washing machine is closed during the washing operation, the display section is displayed. Displays the remaining time of washing, automatically selects and sets the display contents when the lid is opened and closed, and when the lid is opened to put detergent before washing starts, the amount of water and the amount of detergent Is displayed, and the remaining time of the laundry is displayed when the lid is closed after the start of the laundry, so that necessary information can be reliably displayed when needed in the laundry process.

Fourth, by displaying the water amount and the detergent amount alternately on the display unit, the water amount and the detergent amount, which are necessary information before starting the washing, can be displayed on one display unit.

[Brief description of the drawings]

FIG. 1 is a flowchart showing the operation of a method for displaying the amount of water and the use of detergent in a fully automatic washing machine according to the present invention.

FIG. 2 is a waveform diagram of an inertial pulse.

FIG. 3 is a characteristic curve diagram showing a relationship between the number of inertial pulses and a load amount.

FIG. 4 is a characteristic curve diagram showing a relationship between a load amount and a water level.

FIG. 5 is a plan view of a display unit on which the method of the present invention is performed.

FIG. 6 is a plan view of a display unit on which a conventional display method is implemented.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Display part 2 ... Numerical value display 3 ... Shape display 4 ... Power switch 5 ... Start and pause button 6 ... Course selection button 7 ... Dirt button 8 ... Reservation button 9 ... Dehydration button 10 ... Rinse button 11 ... Wash button 12 ... Course display section 13 ... Water flow display section 14 ... Dehydration time display section 15 ... Rinsing number display section 16 ... Washing time display section 17 ... Remaining time during washing display section

Claims (4)

[Claims] 1. A fully automatic washing machine display device for judging a load amount of laundry and setting a water amount and a detergent amount based on the load amount judgment result, wherein the water amount is set to 1 based on the load amount judgment result. A method for displaying the amount of water and the amount of detergent in a fully automatic washing machine, wherein the amount of detergent is displayed in units of liter and the amount of detergent corresponding to the amount of water is displayed on a display unit. 2. The method for displaying the amount of water and the amount of detergent in a fully automatic washing machine according to claim 1, wherein the amount of water and the amount of detergent are displayed on a display for displaying the remaining time of washing during the washing operation. 3. The display unit displays the amount of water and the amount of detergent on the display unit when the lid of the washing machine is open before the start of the washing operation. When the lid of the washing machine is closed during the washing operation, the display unit displays the amount of water and the detergent. 3. The method for displaying the amount of water and the amount of detergent in a fully automatic washing machine according to claim 1, wherein the remaining time of washing is displayed. 4. The method for displaying the amount of water and the amount of detergent in a fully automatic washing machine according to claim 1, wherein the amount of water and the amount of detergent are displayed alternately on a display unit.