KR19990000881A - How to reduce the inertia operation time of washing machine - Google Patents

Abstract

The present invention relates to a method for shortening the inertia operation time of a washing machine. In the related art, inertia operation is performed despite the fact that the inertia dehydration speed is smaller than that of the dehydration when the washing tank rotates until the dehydration ends and the inertia stops. Since the time is fixed, there was a problem that the unnecessary washing machine drive.

According to the present invention, a step of driving the right synchronous motor in the dehydration mode of the system (steps 101 and 102) and a step of turning off the right synchronous motor when the end time is checked by checking whether the dehydration end time is completed (steps 103 and 104) can solve the conventional problems. And inertia operation of the washing machine performed by the inertia operation time reduction program 100 including a step (steps 105 to 108) of determining whether the last dehydration is performed and then performing the preset inertia operation mode or the short inertia operation mode. It is to provide a method of reducing time.

Description

How to reduce the inertia operation time of washing machine

The present invention relates to a method for shortening the inertia operation time of a washing machine, which particularly performs a long time inertia operation after the final dehydration by selecting and operating the inertia operation cycle during the dehydration operation of the washing machine as a long time inertia operation and a short time inertia operation. By eliminating the waste of driving time caused by doing so.

In general, the automatic washing machine has several washing courses so that washing, rinsing, and dehydration time can be optimally adjusted according to the type and amount of the laundry.

For example, laundry that is not timely and frequently washed, such as maryas, shirts, handkerchiefs, etc., can be washed in the 'Rapid laundry course', while laundry such as thick blankets, curtains, carpets, hiking bedding, sheets, etc. can be washed in the 'blanket laundry course'. In addition, laundry such as high-quality sweaters, cardigans, silk, lingerie, stockings, etc. are washed in the 'naive washing course', and in the case of general laundry mixed with various clothes, the sensor washing course is washed in the 'sensor washing course'. The automatic washing machine operates various sensors to automatically set the washing, rinsing, dehydration time, and proper level of washing, but the remaining washing course selects the appropriate level according to the user's washing.

On the other hand, the washing machine is installed in the water storage tank 32 that accommodates the washing tank 33 rotated in the main body 30, as shown in Figure 1, the lower center of the washing tank 33 to generate water flow by the power of the motor A pulsator 34 for washing laundry, a reduction unit 36 for mediating the power of the motor 35 to be transmitted to the washing tank 33 and the pulsator 34, and the motor 35, etc. It includes.

In addition, the system circuit related to the driving of the washing machine in the above washing machine is shown in FIG. 2.

Here, the microcomputer 21 of the system control, the memory 20 storing the procedure data of the respective strokes for the system operation, the sensing data of the detectors and the programs, and the display and the operation completion of the various operations, etc. Safety alarm for shutting off the system power during unbalanced operation of the display alarm unit 24, the relay drive unit 23, the key input unit 22, the load drive unit 25, and the washing tank, which perform an alarm function to be notified. The part 31 is included.

In addition, the system detects the water level detector 26, the load detector 27, the temperature detector 28, the unbalance detector 29, and the inertial driving state for various control operations of the microcomputer 21. The motor rotation speed detection unit 32 and the like are provided.

The conventional technique for inertial operation in such a conventional washing machine is known from Korean Patent Laid-Open No. 96-23405, and the inertial driving method in such a system is performed by the process as shown in FIG. 3.

In this case, it checks if dehydration is completed in the dehydration operation mode, and when it is completed, enters inertia drive.

Thereafter, the microcomputer 21 detects the inertia pulse from the motor rotation speed detection unit 32 to check whether the predetermined rotation pulse is applied, and in the case of the predetermined rotation pulse, energizes the left half for a predetermined period, and again detects the inertia pulse.

In addition, the system checks whether the predetermined rotation pulse value is applied, and if it is a predetermined rotation pulse, energizes the left half of the predetermined period briefly, detects an inertial pulse again, and stops the motor when it is less than the predetermined rotation pulse.

As described above, in the related art, after the rinsing is completed, it is determined whether dehydration is completed at the time of dehydration operation.

However, in the prior art, when the dehydration is completed, the inertia operation cycle is lengthened because there is no water in the washing tank, and the inertia operation cycle is shortened by the load in the state where water is supplied. It was difficult to avoid unnecessary driving conditions in these systems.

It is an object of the present invention to perform the inertial operation in such a washing machine system to improve the above problems, the inertial operation cycle is unnecessary operation in such a system by selectively performing long time inertia operation and short period inertia operation The time was to be actively restrained.

The present invention particularly includes the steps of driving the right synchronous motor in the dehydration mode in the system so as to realize the object of the above example, checking the dehydration end time and turning off the right synchronous motor at the end time, and then determining whether or not the final dehydration is performed. It is characterized in that the inertial operation time reduction method of the washing machine that is executed by the inertial operation time reduction program comprising the step of performing in a preset inertial operation mode or a short inertial operation mode.

Hereinafter, more specific features of the present invention will be understood by describing the same in detail with the accompanying drawings.

1 is a reference diagram showing a typical washing machine cross section

2 is a system circuit block diagram of a washing machine according to the present invention.

3 is a reference diagram showing a conventional inertial driving method

Figure 4 is an embodiment of the inertial operation time reduction program of the present invention

Explanation of symbols on the main parts of the drawings

21. Microcomputer 22. Key input

23. Relay drive unit 24. Display alarm unit

25. Load Drive 32. Motor Speed Detection

100. Inertia operation time reduction program

That is, Figure 4 shows an embodiment of the inertial operation time reduction program 100 to implement the inertial operation time reduction method of the present invention.

Here, the steps of driving the right synchronous motor in the dehydration mode of the system (steps 101 and 102), checking whether or not the end of the dehydration time and turning off the right synchronous motor when the end time is completed (steps 103 and 104); A step (steps 105 to 108) is performed in the set long inertia operation mode or short inertia operation mode.

In the step of checking whether or not the last dehydration in the above step, check whether the last dehydration or not, if the last dehydration checks whether the long inertia operation time (step 105, 106) and if not the last dehydration, and if the last dehydration If it is executed, it is checked whether it is a short inertia operation time period, and if it is a short inertia cycle, operating a system with a short inertia cycle (steps 107 and 108).

In the present invention, the system maker divides the inertia operation cycle in the washing machine in the dehydration and water supply modes of the washing machine according to the experiment, and then the long inertia operation time data and the short inertia operation time data value according to the stroke EIPROM (EEPROM) as shown in FIG. 2. It is stored in the memory 20.

In this state, after the rinsing is completed during the washing machine stroke, the microcomputer 21 determines whether the dehydration is completed during the dehydration operation, and when the dehydration is completed, the microcomputer 21 enters the stop driving and checks the inertia rotation state. In this case, the motor rotation speed detection unit 32 The inertia pulse detected from the motor will be recognized to decide whether to stop the motor.

At this time, since the microcomputer 21 has no water in the laundry at the end of the main dehydration, the long cycle inertial operation data value is withdrawn from the memory 20 and the long cycle inertial operation based on this is performed. Under the load condition, the short cycle inertia operation data value is extracted from the memory 20 and driven in the short cycle inertia operation based on this value.

Therefore, since the system does not need to perform unnecessarily long inertia operation, the system can be operated efficiently.

Meanwhile, the above operation is performed by the microcomputer 21 together with the inertial operation time reduction program 100 as shown in FIG. 4, which checks whether the system is in the dehydration mode, and drives the right-back synchronous motor in the dehydration mode. The system checks whether the dehydration end time is reached, and if the end time is reached, the right and left synchronous motors are turned off (steps 101 to 104).

After that, the last dehydration is checked to perform the preset long inertia operation mode or the short inertia operation mode (steps 105 to 108).

In the step of checking whether or not the last dehydration in the above step, check whether the last dehydration or not, if the last dehydration, if it is a long inertia operation time, perform a long period of inertia operation and check whether the long time period of inertia operation is finished, return if yes If it is not, go to step 105. If the final dehydration is not performed, water is supplied and if the short inertia operation time period is checked, the system is operated with a short inertia cycle (step 105 to step 108).

The present invention allows the washing machine to selectively operate the inertial operation mode as a long cycle inertia operation and a short cycle inertia operation according to the inertia state, thereby actively reducing the system unnecessary operation state due to unnecessary inertia operation in such a system. There is.

Claims (1)

A step of driving the right synchronous motor in the dehydration mode of the system in the washing machine including the microcomputer 21 and the memory 20 (steps 101 and 102), and checking the dehydration end time and turning off the right synchronous motor at the end time. (Steps 103 and 104), and then determining whether or not the last dehydration is performed and performing the preset long inertia operation mode or the short inertia operation mode (steps 105 to 108). Inertia operation time reduction method of the washing machine characterized in that