KR0159554B1 - Washing control apparatus and method of a washing machine - Google Patents

Abstract

The present invention relates to a laundry control apparatus and method for a washing machine, and more particularly, to a laundry control apparatus and method for a washing machine capable of achieving optimal washing by completely dissolving a detergent in a vortex type washing method using a detergent. will be.

In the washing control apparatus and method of the washing machine of the present invention, a washing machine provided with a driving motor, a weight sensing means and a water tank, and washing is performed under the control of a microcomputer, is installed at a predetermined position of the water tank to wash the washing water. A conductivity sensor that outputs data proportional to the degree of dissolution, a microcomputer for determining the complete dissolution time of the detergent by comparing the output data from the conductivity sensor, and completely dissolving the detergent by a predetermined program embedded in the microcomputer. After that is to run the laundry.

Description

Laundry control device and method thereof

1 is a cross-sectional view of a washing machine according to the present invention.

2 is a block diagram of a laundry control apparatus according to the present invention.

3 is a control flowchart of the laundry control apparatus according to the present invention.

4 is a graph showing a comparison of detergent dissolution degree according to the stirring time of the motor.

* Explanation of symbols for main parts of the drawings

1: washing machine body 2: door

3: washing tank 4: exterior

5: water tank 6: conductivity sensor

7: pulsator 8: feed water valve

9: Reducer 10: Control Box

11: drive motor part 12: motor pulley

13: belt 14: shaft

15: drain pipe 16: drain valve

17 coil sensor 18 magnet

19: detergent dispenser 20: microcomputer

The present invention relates to a laundry control apparatus and method for a washing machine, and more particularly, to a laundry control apparatus and method for a washing machine capable of achieving optimal washing by completely dissolving a detergent in a vortex type washing method using a detergent. will be.

The conventional washing control method of the washing machine is a laundry method in which washing is performed by mechanical force for a set time by simply controlling the water level by a washing method that is preset according to the level of water supplied by sensing the weight of the laundry. Is not completely dissolved, the perfect effect of the detergent can not be expected to increase the number of times of washing, rinsing and soaking process is prolonged not only cause damage to clothes by excessive motor drive, but also increases the power consumption There is a problem in reducing the washing performance of the washing machine, reducing the reliability of the washing machine by causing environmental pollution and frequent failures due to the discharge of detergent that is not completely dissolved.

In order to solve this problem, the present invention detects the degree of dissolution of the detergent by a conductivity sensor regardless of the amount of detergent that is not uniformly added to the washing control device of the washing machine, and compares the output data thereof with a microcomputer to completely determine the detergent. By washing after the point of dissolution, the effect of the detergent added is maximized to reduce the number of washing and rinsing, and to prevent the damage of clothes by reducing the washing time, and to reduce the driving time of the motor, thereby increasing the power saving effect. The purpose of the present invention is to achieve optimal washing by providing a laundry control apparatus and method for significantly reducing the possibility of failure of the washing machine and increasing the reliability and preventing environmental pollution due to the discharge of detergent that is not completely dissolved.

In the washing control apparatus and method of the washing machine of the present invention for realizing such an object, a washing machine provided with a driving motor, a weight sensing means and a water tank, and washing is controlled under the control of a microcomputer, is provided at a predetermined position of the water tank. A conductivity sensor installed to output data proportional to the degree of detergent dissolution of the wash water, and a microcomputer for determining the complete dissolution time of the detergent by comparing and analyzing output data from the conductivity sensor, and a predetermined program embedded in the microcomputer. By washing the detergent completely dissolved by washing.

In another aspect, the present invention provides a washing machine washing control method having a drive motor, a weight sensing means and a conductivity sensor for detecting a degree of detergent dissolution, and controlled by a microcomputer, which supplies water to the washing machine and is set in proportion to the weight of the washing cloth. Water supply process (L1) to determine whether the water supply up to, and after the above process through the conductivity sensor to detect and remember the initial detergent dissolution degree, stirring the motor for a predetermined time and then again detect the detergent dissolution degree of the initial value and the present value The first detergent dissolution measurement process (L2), which calculates the difference and compares it with the reference set point, and if it does not match the reference set point after the phase process, re-stirres the motor for a predetermined time and detects the present detergent dissolution level. Calculate the difference from the detergent solubility of the previous measuring procedure and for up to 10 minutes until the difference matches the reference set point. The second detergent dissolution measurement process (L3) to repeat this process, and if it is determined that the detergent is saturated after repeating the process is made of a laundry control method of the washing machine consisting of a general washing process (L4) to execute the set washing.

Hereinafter, described in detail by the accompanying drawings as follows.

As shown in FIG. 1, the present invention provides a water supply valve 8 for supplying wash water, a detergent input device 19 for inputting detergent at the same time as water supply, a water level sensor for detecting a set water level not shown in the drawing, and laundry. There is a pulsator (7) for agitating the drive, a drive motor (11) for driving it, a reducer (9) and a belt (13), which is installed in a predetermined position of the water tank to determine the time when the detergent is completely dissolved Conductivity sensor (6) for outputting the coil sensor (17) and the magnet (18), which is the weight sensing means of the laundry cloth, drainage valve for drainage when washing is finished (16), and microcomputer for controlling the washing process And a control box 10 for controlling the apparatus.

2 is a block diagram of the laundry control apparatus of the present invention, when the water containing detergent together with the laundry is added to the water tank 5, the data indicating the degree of dissolution of the detergent is detected by the detection of the conductivity sensor (6) The microcomputer 20 receives the data thereof and stores the data first, and then operates the driving motor 11 to stir the pulsator 7 to the left and right for a predetermined time to dissolve the detergent and then to drive the motor ( 11) is stopped and data indicating the degree of detergent dissolution at that time is input again by the detection of the conductivity sensor 6, and the difference between the stored data of the pulsator 7 before stirring and the current data value is compared. Calculate and compare the result with the reference set value calculated by the experiment.

At this time, if it does not coincide with the stored reference set value, the drive motor 11 is operated again, and the pulsator 7 is stirred left and right again for a predetermined time, and then data indicating the degree of detergent dissolution after stopping is returned to the conductivity sensor (6). The difference from the previous data, which is inputted by the detection of the) and indicates the degree of detergent dissolution before stirring, is again compared with the reference set value.

Therefore, if the difference of the calculated data value does not match the reference set value, repeat the process of calculating and comparing the difference between the operation of the pulsator 7 and the data output from the conductivity sensor 6 for up to 10 minutes. And, if the reference setting value is matched, the drive motor 11 is operated to execute general washing for a set time according to the weight detected by the weight sensing means composed of the coil sensor 7 and the magnet 18.

The washing process of the laundry control apparatus of the washing machine of the present invention operated as described above will be described in detail with reference to FIG. 3.

When the washing is started and the water containing the detergent is added to the water tank 5 through the water supply valve 8 and the detergent input device 19 (step 101), the magnet 18 and the coil sensor 17 are configured. The weight of the washing cloth is detected from the weight sensing means (step 102), and whether the water supply is completed to the set water level through the detection sensor for detecting the water level (not shown) (step 103) is not completed. If not again performs a water supply process (L1) to complete the water supply to the water level set by the weight detected by the weight sensing means.

When the water supply is completed up to the set water level, as shown in FIG. 2, the microcomputer 20 in the control box 10 receives and stores the data detected by the conductivity sensor 6 as the initial degree of dissolution of the detergent (step 104). The microcomputer 20 in the control box 10 operates a driving motor to stir the pearlsator for a predetermined time left and right to dissolve the detergent, and then stops it to stop the dissolution of the detergent by sensing the conductivity sensor 6. The received data is input again and stored (step 106), and the difference from the data indicating the degree of dissolution of the initial detergent is calculated and compared with the reference set value previously calculated and input in the microcomputer 20 (step 107). The first detergent dissolution measurement process 12 is performed.

If the reference set value and the data do not match after performing this process, it means that the detergent is not completely dissolved. Then, the driving motor 11 is restarted for a predetermined time, and the pulsator 7 is left and right stirred (step 108) The drive motor 11 is stopped, and data indicating the degree of dissolution of the detergent sensed by the conductivity sensor 6 is input again and stored (step 109) and data indicating the degree of dissolution of the detergent stored and input in the immediately preceding step. The second detergent dissolution measurement process L3 is performed to calculate the difference value with and compare (step 110) whether the difference matches the reference set value input in the microcomputer 20.

After this process, the difference between the data of detergent level currently input by the conductivity sensor 6 and the data indicating the degree of detergent dissolution in the previous process is calculated and compared to the built-in reference set point. If not, the operation of calculating and comparing the data is repeatedly performed for up to 10 minutes, and then driven for a time set by the weight of the laundry cloth detected by the weight sensing means composed of the magnet 18 and the coil sensor 17. By operating the motor 11 performs a general washing process (L3) for washing. On the other hand, as a result of comparing the degree of detergent dissolution of the detergent inputted in the second detergent dissolution measurement process and the previous detergent dissolution level, if the difference between the input data and the previous data is consistent with the reference set value, the detergent is completely dissolved. It is determined that the washing is performed (step 111) by operating the driving motor 11 for a time set by the weight of the laundry cloth detected by the weight sensing means composed of the magnet 18 and the coil sensor 17 immediately. The washing process (L3) is performed.

In FIG. 4, as shown in the graph showing the comparison of detergent solubility with washing time, most of the detergent was dissolved in 3-4 minutes, and completely dissolved and saturated after 5 minutes. Therefore, in the present invention, the microcomputer 20 receives data indicating the degree of detergent dissolution by sensing the conductivity sensor 6 before and after stirring the pulsator by the operation of the driving motor 11, and calculates the difference based on the reference. By comparing with the set value, it is possible to determine the complete dissolution of the detergent and repeatedly dissolve the detergent for up to 10 minutes to achieve complete dissolution of the detergent.

As described above, the washing control method by the washing control apparatus of the washing machine of the present invention is completely dissolved before the washing is carried out, and the washing is performed after the saturation state of the detergent. Prevents residues of detergents remaining after washing, reduces environmental pollution due to discharge of detergents that do not completely dissolve, and greatly reduces washing and rinsing time, thus reducing power savings and troubles caused by excessive motor driving. .

Claims (1)

A conductivity sensor for sensing the conductivity of the wash water, a pulsator for stirring the laundry, a drive motor unit for generating power for driving the pulsator, and a belt for transmitting and decelerating power of the drive motor unit to the pulsator And a reducer, a coil sensor and a magnet for sensing the weight of the laundry cloth for the laundry and the washing water, and a microcomputer for controlling each part according to a command input by the user through the operation panel, and controlling the microcomputer. In the washing control method of the washing machine to control the washing operation under the water, the water supply process (L1) to determine whether or not to supply the washing water in the state in which the laundry is contained in the washing machine, and to supply the water to the set water level proportional to the weight of the laundry cloth (L1) ; After performing the water supply process (L1) to detect and remember the initial detergent dissolution degree through the conductivity sensor, and stirred the predetermined time by driving the pulsator, and then again detect the detergent dissolution degree through the conductivity sensor, already stored A first detergent melting measurement process (L2) for comparing whether the difference between the detected initial value and the detected current value coincides with the reference set value; If the first detergent dissolution measurement process (L2) does not match the reference set value, the pulsator is driven and re-stirred for a predetermined time, and the first detergent dissolution measurement process is detected after detecting the degree of detergent dissolution through the conductivity sensor. The second detergent dissolution measurement process (L3) and the second detergent dissolution measurement process, which repeats this process for up to 10 minutes until the difference between the degree of the previous detergent dissolution detected in (L2) and the reference set value is matched. By repeating the detergent dissolution process at (L3), the difference between the current detergent dissolution level and the previous detergent dissolution degree is identical, and when the detergent reaches saturation, depending on the weight of the laundry cloth detected through the coil sensor and magnet Washing control method of the washing machine, characterized in that made of a general washing process (L4) to perform the washing by driving the pulsator for a set time.