KR19990056889A - How to detect and deal with ponytails - Google Patents

Abstract

The present invention in the washing machine to wash the tub by direct drive (Direct Drive) washing machine in the washing stroke in the state of detecting the tangling by the left and right rotational speed of the motor during washing and releasing the cloth with the inflated water flow when tangling The present invention relates to a detection and processing method of the washing machine of the washing machine to improve the washing efficiency by proceeding, the present invention continuously detects the left and right rotational speed of the motor when the washing stroke is started, the left and right rotation of the detected motor The difference in the number of revolutions of the motor is calculated by calculating the difference between the left and right revolutions, and then comparing the calculated difference between the calculated number of revolutions of the motor and the preset reference value to determine the poking. If it is larger or equal, it is judged by kink, pauses washing, loosens twisted cloth with inflated water, and proceeds with washing again to increase washing efficiency. A.

Description

How to detect and handle frizz in the washing machine

The present invention relates to a washing machine, and more particularly, in a washing machine rotating a tub in a direct drive method, the washing machine detects the entanglement with the left and right rotational speeds of the motor during washing, and the folding water flow during the entanglement. The present invention relates to a method for detecting and treating porosity of a washing machine for improving washing efficiency by carrying out a washing stroke in a state in which a cloth is loosened.

In general, a washing machine is a device that cleans laundry by sequentially performing a predetermined time or a predetermined number of times on a dirty, washed, rinsing, and dehydrating stroke.

The structure of this general washing machine is the same as that of the accompanying drawings, Figure 1, Figure 2 is a driving device for driving the general washing machine as described above.

1, reference numeral 1 denotes an outer tub (out tub), 2 an inner tub (inner tub), 3 is a motor, and 4 is a clutch that receives power generated by the motor 3 through a pulley, a V-belt, a clutch pulley, 5 denotes a pulsator (stirrer) for receiving power from the clutch 4 to vortex the wash water.

In FIG. 2, reference numeral 6 denotes a key input unit for designating washing time, rinsing frequency, dehydration frequency, etc., and reference numeral 8 denotes the overall system operation of the washing machine according to the user's stroke selection key signal input from the key input unit 6. The microcomputer for controlling the reference number 7 is a water level detection unit for inputting the microcomputer 8 to detect the water level supplied in the washing tank.

In addition, reference numeral 9 is a display unit for displaying various functional states according to the control signal of the microcomputer 8, reference number 10 is switched on / off in accordance with the control signal of the microcomputer 8 to operate the power supply to the load It is a load driving unit for supplying, and reference numerals 11 and 12 are opened and closed by the operating power supplied from the load driving unit 10 is a hot water / cold water valve for supplying hot and cold water to the washing tank, and reference numeral 13 is the load driving unit ( The drain valve opens and closes according to the operating power supplied from 10) and drains the turbid water in the washing tank.

In the conventional washing machine having such a configuration, when laundry and detergent are put into the inner tank 2 and the washing key provided on the key operation unit 6 is transmitted to the washing start signal, the washing machine recognizes this and the overall operation of the washing machine. To control.

In this case, when the user selects the water level, the water is supplied according to the water level selected by the user, and the washing stroke is performed. If the user selects the automatic mode without selecting the water level, the microcomputer 8 load-operates the load unit 10. ) To supply the wash water to the washing tank through the hot water valve (11) or cold water valve (12).

When the water supply starts, the water level detection unit 7 detects the water level and delivers the water level to the microcomputer 8, and the microcomputer 8 receives the load driving unit when the water level detected through the water level detection unit 7 becomes a low level. 10) to control again to close the hot water valve (11) or cold water valve (12) to stop the water supply.

Thereafter, the motor 3 is rotated for a predetermined time and then turned off. The counter electromotive force of the motor 3 generated at that time is converted into a pulse, and the number thereof is counted. The quantity is determined according to the counted pulses, and when the quantity is determined, the level corresponding to the quantity is determined.

Next, water is supplied by controlling the load driving unit 10 and the hot / cold water valves 11 and 12 so as to correspond to the determined water level, and when the water supply is finished, the washing stroke, which is the first stroke, is set to the set water level. Advance for the right time.

When the washing stroke is completed, drain water is opened by opening the drain valve 13, and the water is supplied to the rinsing level again, and then proceeds to the rinsing stroke. The stroke is repeated as many times as set or automatically set.

However, the conventional washing machine as described above has a problem that it is impossible to clean laundry because the washing process proceeds as much as the time set irrespective of the kink during the washing stroke.

In other words, if a kink occurs during washing, washing is not possible for the kink. However, the conventional washing machine does not have a function for detecting the kink, and thus the washing efficiency is reduced by proceeding the washing regardless of the kink.

Therefore, the present invention has been proposed to solve various problems occurring when washing the conventional washing machine as described above.

An object of the present invention to provide a method for detecting and processing the kinky of the washing machine to detect kinks by the difference in the number of left and right rotation of the motor during washing in the washing machine to wash the tub by direct drive (Direct Drive) method. There is this.

Another object of the present invention, the washing machine to increase the washing efficiency by the washing stroke in the state of detecting the tangling by the difference in the left and right rotational speed of the motor during washing, and loosen the cloth with a bulging water flow when tangling The present invention provides a method of detecting and treating porosity.

The proposed method for achieving the objects of the present invention,

A motor rotation speed detection process of continuously detecting left and right rotation speeds of the motor when the washing stroke starts;

A rotation speed difference calculating step of calculating a left and right rotation speed difference by mutually calculating left and right rotation speeds of the detected motor;

A follicle determination process for determining whether or not follicles are compared by comparing the calculated rotation speed difference value of the motor with a preset reference value to determine follicles;

If it is determined that the knuckle is determined as the result of the determination, the washing operation is paused, and the washing administration control process of proceeding the washing stroke after unwinding the twisted cloth with the inflation stream.

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

1 is a structural diagram of a conventional washing machine,

2 is a system configuration of a conventional washing machine,

3 is a structure diagram of a washing machine of a direct drive method to which the present invention is applied;

4 is a control flow diagram showing a method of detecting and processing the kinky of the washing machine according to the present invention;

Figure 5 is a left and right rpm change of the motor during poking in the present invention.

<Explanation of symbols for main parts of the drawings>

100: outer tub (out tub) 101: inner tub (inner tub)

102: stator 103: rotor

3 is a structural diagram of a washing machine of the direct drive method to which the present invention is applied.

Here, reference numeral 100 is an outer tub (out tub), reference numeral 101 is an inner tub in which an inner tub into which laundry is inserted and a pulsator for vortexing the wash water are integrated, and 102 is a frame attaching an iron core and an iron core to support a winding. It is made of a stator, 103 is a rotor that rotates with the power generated in the stator (102).

Since the system of the washing machine which rotates the laundry container in the direct drive method configured as described above is the same as the system configuration and operation of FIG. 2 described above, the detailed description of the configuration and operation will be omitted.

In this case, the washing machine of the direct drive method rotates the washing tub itself which is the inner tank 101 during washing, rinsing, and dehydration so that the integrated pulsator is also rotated together with the washing tub.

Referring to Figures 4 and 5 attached to the kinky detection and processing method according to the present invention with reference to the direct drive type washing machine to which the present invention configured as described above is applied as follows.

First, the laundry to be washed by the user is put in the washing tub (inner tank), and the appropriate amount of detergent is added, and the automatic washing mode (manual mode is a mode in which the user arbitrarily specifies the level of water, rinsing, and dehydration) through the key input unit 6. Select and operate the laundry start key (S1).

Then, the microcomputer 8 controls the load driving unit 10 to supply water. When the water supply starts as described above, the water level detector 7 detects the water level and delivers the water level to the microcomputer 8. The microcomputer 8 determines the water level by analyzing the level detection value transmitted as described above, and when the determined water level becomes the minority level, the microcomputer 8 controls the load driving unit 10 again to stop the water supply. Thereafter, the load driving unit 10 is controlled to supply driving power to the stator 102 constituting the motor, and the rotor 103 constituting the motor is rotated by the force generated by the stator 102 to rotate the pulsator. The integral inner tub 101 is rotated. Then, when the set time has elapsed, the driving of the motor is stopped by cutting off the power supplied to the stator 102. At this time, the amount of backwater is determined by converting the counter electromotive force generated from the motor into pulses and counting the number of pulses ( S2).

When the amount of water is determined by the above process, the water level corresponding to the amount of water is determined (S3), and the load driving unit 10 is controlled again to supply water to the determined water level (S4). When the water supply starts, the water level detection unit 7 detects the water level as described above, and the microcomputer 8 stops the water supply when the detected water level reaches the determined water level (S5), and enters the washing stroke mode. The entrance is to proceed with the washing stroke (S6).

When the washing stroke is started, the rotational speed detection unit (not shown in the drawing) of the motor detects the left and right rotational speeds of the motor and transfers them to the microcomputer 8 (S7). Detecting is to detect kinking.

That is, when the washing stroke is performed in the absence of poking, the motor rotates while the left and right rotational speeds (rpm) of the motor are the same. However, if poking occurs, a bias occurs. The right rotation speed is varied as shown in FIG.

In other words, if the deflection occurs and the bias occurs, the inner tank 101 is inclined to one side, so that the motor rotates the inner tank 101 with the same torque, but the rotational force is relatively decreased from the inclined side (left or right). do.

In conclusion, if the occurrence of poking occurs the bias of the inner tank 101, the left and right rotation speed of the motor will be different.

Therefore, the absolute value obtained by subtracting the left and right rotational speeds of the motor (left rotation-right rotational speed) can be set as the rotational speed difference value to determine the kink, and the next step is to determine the rotational difference and the kink. In order to compare the reference values set in order to be negligible (a very small level of poking is negligible) (S7-S10).

When the rotation speed difference value calculated as a result of the comparison is smaller than the set reference value, there is no kinking or it can be ignored, so it is ignored and maintains the washing process currently in progress.

On the other hand, when the rotation speed difference value calculated as a result of the comparison is greater than or equal to the set reference value, it is determined to be kinked, and after the washing is paused (S10), the twisted cloth is released for a predetermined time by the inflated water stream (S11). ).

Here, the method of releasing the twisted cloth may be a method of releasing the twisted cloth by designating a predetermined time and operating the inflated water flow only during that time. As described above, the left and right rotational speed may be detected by detecting the left and right rotational speed of the motor. At the same time point, there may be a method for solving the twisted cloth that determines that the twisted cloth is released.

On the other hand, when the twisted cloth is released by the method described above, the washing process proceeds to the next step after washing the laundry from the previously set washing time, and then subtracts the washing time until the laundry is paused, and proceeds with the washing process again for the remaining remaining washing time. It is made (S12).

The rinsing stroke or dehydration stroke, which is the following operation, is performed by the same method as the conventional method, and thus detailed description thereof will be omitted.

As described above, the present invention has the effect of increasing the washing efficiency by detecting the kink when washing and proceeding the washing after releasing the twisted cloth by poultry flow during kink.

In addition, if the bias caused by the twisted cloth during washing may adversely affect the motor by overload, this problem can be solved.

In addition, when the inner tank is biased, the noise is also relatively increased. Since the washing proceeds while releasing the twisted cloth during washing, the bias of the inner tank can be prevented in advance, thereby reducing the noise.

Claims (5)

In the washing machine to perform the laundry by rotating the laundry in a direct drive method, A motor rotation speed detection process of continuously detecting left and right rotation speeds of the motor when the washing stroke starts; A rotation speed difference calculating step of calculating a left and right rotation speed difference value by mutually calculating left and right rotation speeds of the detected motor; A follicle determination process for determining whether or not follicles are compared by comparing the calculated rotation speed difference value of the motor with a preset reference value to determine follicles; If it is determined that the kink is determined as the kink, the washing knuckle detection and processing method characterized in that to perform a laundry administration control process to continue the washing stroke again after unwinding the twisted cloth with the inflation stream. The method of claim 1, Wherein the step of calculating the difference in speed is detected and processing method of the washing machine, characterized in that for calculating the absolute value obtained by subtracting the right rotation speed of the motor from the left rotation speed of the detected motor as the difference value of the rotation speed. The method of claim 1, The poking determination is a poultry detection and processing method of the washing machine, characterized in that it is determined that the poking when the left, right rotation speed difference value of the motor is greater than or equal to the set reference value. The method of claim 1, The washing administration control process is a twist detection and processing method of the washing machine, characterized in that to untie the twisted cloth with the inflated water flow for a set time. The method of claim 1, The washing administration control process is a method of detecting and processing the twist of the washing machine, characterized in that to operate the inflated water until the left, right rotation speed difference of the motor is smaller than the reference value while releasing the twisted cloth with the inflated water.