KR0168124B1 - Washing control method of drum type washing machine - Google Patents

Abstract

The present invention relates to a washing machine washing method of a drum washing machine, the washing machine washing method of a drum washing machine comprising: an initial water level sensing step of detecting water level data at an initial stage of a dehydrating stroke of the drum washing machine, and a dehydrating stroke time passes a predetermined time; A change level detection step for detecting water level data that changes according to the amount of wash water and the de-storage product drained, and the change level data detected in the change level detection step and the initial level data detected in the initial level detection step. A bubble generation determination step of determining whether bubbles are generated by comparing the water level difference with the reference water level data set in the control means; and if it is determined that the water level difference is larger than the standard water level data in the bubble generation step, the dehydration stroke is temporarily suspended. Characterized in that it consists of a rinsing stroke to stop and supply the wash water to perform a rinsing stroke.

Description

Washing control method of drum washing machine

1 is a control block diagram of a washing control method of a drum washing machine according to an embodiment of the present invention.

2A and 2B are flowcharts illustrating a washing control method for a drum washing machine according to the present invention.

3a and 3b is a flow chart showing the washing control operation procedure of the drum washing machine according to another embodiment of the present invention.

4 is an output waveform diagram of the water level sensing means applied to the present invention.

* Explanation of symbols for main parts of the drawings

1: AC power input terminal 10: Water level detection means

20: control means 30: drainage pump driving means

31: drain pump 40: motor driving means

41: motor

The present invention is to wash the drum washing machine to control the washing operation to control the washing operation to drain the foam by detecting the excessive occurrence of foam by the water level data that changes depending on the amount of wash water and the washing product to be drained during the dehydration stroke of the drum washing machine It relates to a control method.

In general, the drum washing machine is capable of washing delicate clothes with less damage due to twisting of the laundry by performing washing by dropping the drum caused by rotation of the drum in a state in which laundry is put into an internal drum having a predetermined capacity.

In the laundry administration of the laundry of the drum washing machine, when dehydration after the end of the rinsing, the dehydration RPM (rotational speed) increases, so that the washing water and the washing water remaining in the laundry are temporarily drained by the drainage pump to increase the pressure in the device. As a result, the water level data changes.

By the way, in the conventional drum washing machine, when the user uses the detergent in the drum washing machine in a standard amount or uses a detergent that generates a lot of foam, the foam is discharged by the drain pump as the dehydration RPM increases during dehydration after the rinsing ends. It is more inconvenient to use due to the leakage of foam to the front of the drum washing machine (for example, detergent dispenser, etc.) due to the amount of drainage, which not only provides inconvenience to the user, but also prevents optimal washing administration. there was.

Therefore, the present invention has been made to solve the above problems, an object of the present invention is to detect the water level data that changes during the dehydration operation of the drum washing machine by the water level detection means and the detected water level data is excessive of foam In case of more than the standard data due to the occurrence of the washing machine to control the washing operation to drain the foam normally, not only can solve the inconvenience caused by the front leakage of the foam, but also to meet the user's satisfaction To provide a laundry control method.

Washing control method of the drum washing machine according to the present invention in order to achieve the above object, in the washing control method of the drum washing machine, the initial water level detection step of detecting the water level data of the initial stage of the dehydration administration of the drum washing machine, and the dehydration administration time A change level detection step for detecting water level data that changes according to the amount of wash water and washing water removed during the lapse of time, and the initial level detected in the change level data and the initial level detection step detected in the change level detection step A bubble generation determination step of determining whether bubbles are generated by comparing the water level difference of the water level data with the reference water level data set in the control means, and if it is determined that the water level difference is larger than the standard water level data in the bubble generation step, dehydration is performed. It consists of a rinsing stroke step of pausing the stroke and supplying the washing water to perform a rinsing stroke It characterized.

In addition, the washing control method of the drum washing machine according to another embodiment of the present invention, in the washing control method of the drum washing machine, the initial water level detection step of detecting the water level data of the initial stage of the dewatering operation of the drum washing machine, and the dehydration administration time A change level detection step for detecting water level data that changes according to the amount of wash water and washing water removed after a predetermined time, and the change level data detected in the change level detection step and the initial water level detection step When the level difference of the initial level data is compared with the reference level data set in the control means to determine whether the bubble is generated, and when it is determined that the level difference is excessive generation of bubbles larger than the reference level data in the bubble generation step It is characterized by consisting of a dehydration stroke step of performing a dehydration stroke by lowering the dewatering RPM of the motor.

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

As shown in FIG. 1, the water level detecting means 10 detects the water level data which changes according to the amount of the wash water and the de-cleaning product drained during the dehydration operation of the drum washing machine. ) Is the drainage pump that is increased by draining the wash water and washing water remaining in the laundry according to the rotational speed (dewatering RPM) of the motor 41 at the time of dehydration after the rinsing of the drum washing machine. It is to detect the water level data that changes according to the pressure in 31).

In addition, the control unit 20 receives the water level data output from the water level sensing unit 10 and compares the water level data Hs, which is set in advance, with the dewatering product and washing water drained to the drain pump 31. By determining whether it is the proper dehydration amount by the drain pump 31 or the abnormal dehydration amount due to the excessive generation of bubbles, the rotation speed (RPM) of the motor 41 is controlled, as well as the overall washing operation of the drum washing machine. It is a microcomputer to control.

In addition, the drain pump driving means 30 receives the control signal from the control means 20 to control the driving of the drain pump 31, and the drain pump driving means 30 is the control means 20. Inverter buffer INV for inverting the control signal output from the control signal received from the gate terminal G through the resistor R1 and the control signal from the control means 20 inverted by the buffer INV. It consists of a triac (TRIAC) turned on to drive the drain pump 31.

In addition, in the drawing, the motor driving means 40 drives and controls the motor 41 to dehydrate the laundry after receiving the control signal from the control means 20 after completion of the drainage stroke under the control of the control means 20. .

Hereinafter, the effect of the washing control method of the drum washing machine configured as described above will be described.

First, the washing control method according to the first embodiment of the drum washing machine according to the present invention will be described in detail with reference to FIGS. 2a and 2b.

2A and 2B are flowcharts showing a washing control method for a drum washing machine according to the present invention. In FIGS. 2A and 2B, S denotes a step.

First, when power is supplied to the drum washing machine, in step S1, the control unit 20 initializes the drum washing machine in accordance with the washing control function.

Subsequently, in step S2, it is determined whether the washing machine is a drainage stroke according to the washing stroke progress of the drum washing machine under the control of the control means 20, and the washing stroke determined by the control means 20 is the drainage stroke ( In the case of Yes), the drain pump 31 must be driven. In step S3, the control means 20 outputs a high level control signal to the drain pump driving means 30 through the output terminal O1.

Accordingly, the drain pump driving means 30 receives a high level control signal output from the output terminal O1 of the control means 20 from the buffer INV and inverts the signal to a low signal. It is applied to the gate terminal (G) of the triac (TRAIC) through.

At this time, when the voltage difference is generated between the gate terminal G and the terminal terminal T1 of the triac TRIC and the triac TRIC is turned on, the commercial AC voltage from the AC power input terminal 1 is a drain pump. It is applied to (31) to drive the drain pump (31).

When the drainage stroke is completed according to the driving of the drainage pump 31, the laundry must be dewatered. In step S4, the drum washing machine determines whether the drum washing machine is dewatering according to the washing stroke of the drum washing machine under the control of the control means 20. If it is determined that the washing stroke determined by the control means 20 is a dehydrating stroke (Yes), the motor 41 must be driven. In step S5, the motor 41 is driven by the control means 20. Outputs a control signal for the motor drive means 40 through the output terminal (O2).

Accordingly, the motor driving means 40 receives the control signal output from the output terminal O2 of the control means 20 to drive the motor 41 to start the dehydration operation.

On the other hand, the drain pump 31 continues to drive under the control of the control means 20 until the dehydration stroke is completed.

Subsequently, in step S6, the initial water level data H1 due to the pressure in the drain pump 31 is detected by the water level sensing means 10 at the initial stage of the dehydration operation of the drum washing machine according to the driving of the motor 41. The initial water level data H1 is output to the control means 20.

In step S7, at the initial stage of the dehydration operation in step S5, the timer tc is counted by a timer built in the control means 20, and the water level during the predetermined time tm shown in FIG. If the dehydration time at the point where the data is maximized) has elapsed, and if the predetermined time tm has not elapsed (No), the time is counted until the predetermined time tm has elapsed.

On the other hand, when the determination result in the step S7 indicates that the time tc counted by the control means 20 has passed a predetermined time tm (Yes), the flow advances to step S8 to the control means 20. The water level data H2 that changes when the motor 41 rotates according to the set dewatering RPM, that is, the de-removable product and the wash water remaining in the laundry are drained to the drain pump 31 at one time, so that the pressure of the drain pump 31 is reduced. The high water level data H2 is changed to be detected by the water level detecting means 10, and the detected water level data H2 is output to the control means 20.

At this time, the water level data sensed by the water level sensing means 10 in the normal dehydration operation of the drum washing machine is displayed in the waveform of the solid line shown in Figure 4, during the abnormal dewatering operation the water level sensing means 10 The water level data detected by is indicated by the dotted line waveform shown in FIG.

Therefore, in step S9, the control unit 20 calculates the water level difference Ha obtained by subtracting the initial water level data H1 from the water level data H2 detected by the water level sensing means 10, and in step S10, It is determined whether or not the water level difference Ha calculated in step S9 is larger than the reference water level data Hs set in advance in the control means 20.

When the water level difference Ha determined by the control means 20 is larger than the reference water level data Hs (Yes) as a result of the discrimination in step S10, the fine water product drained to the drain pump 31 and Since the washing water is an abnormal dehydration state due to the excessive generation of bubbles, that is, a dotted line in FIG. 4, in step S11, the driving of the motor 41 is stopped by the motor driving means 40 under the control of the control means 20. Then, the dewatering stroke is stopped for a while, and then the water supply unit (not shown) is controlled by the control means 20 to perform a water supply operation in the washing tank (drum).

When the water supply operation in step S11 is completed, in step S12, the control means 20 performs a rinsing stroke for rinsing the laundry in the washing tank.

When the rinsing stroke is completed, in step S13 receives the control signal from the control means 20 in the drain pump driving means 30 to drive the drain pump 31 to perform the drain stroke, and when the drain stroke is completed Proceeding to step S14, the motor driving means 40 drives the motor 14 under the control of the control means 20 to perform dehydration stroke.

When the dehydration stroke is completed, in step S15 performs the next washing stroke of the drum washing machine under the control of the control means 20, and then ends the operation.

On the other hand, when the water level difference Ha determined by the control means 20 is not greater than the reference water level data Hs (No), the water is drained to the drain pump 31. After the dewatering product and the washing water are subjected to the normal dehydration operation during the normal dehydration operation of the drum washing machine, that is, the dehydration stroke according to the program in the solid line of FIG.

In addition, when the determination result in step S2 indicates that the washing stroke determined by the control means 20 is not a drainage stroke (No), the process goes to step S4 to determine whether the drum washing machine is a dehydrating stroke. If the washing stroke determined by the control means 20 is not a dehydrating stroke (No), the process proceeds to the step S15 and repeats the operation of the step S15 or less.

Next, the washing control method according to the second embodiment of the drum washing machine according to the present invention will be described in detail with reference to FIGS. 3A and 3B.

3a and 3b is a flow chart showing the washing control operation procedure of the drum washing machine according to another embodiment of the present invention. In FIGS. 3A and 3B, S denotes a step.

First, when power is supplied to the drum washing machine, in step S1, the control unit 20 initializes the drum washing machine in accordance with the washing control function.

Subsequently, in step S2, it is determined whether the drum washing machine is a drainage stroke according to the washing stroke progress of the drum washing machine under the control of the control means 20, and the washing stroke determined by the control means 20 is a drainage stroke. In the case of Yes, the drain pump 31 needs to be driven. In step S3, the control means 20 outputs a high level control signal to the drain pump driving means 30 through the output terminal O1.

Accordingly, the drain pump driving means 30 receives a high level control signal output from the output terminal O1 of the control means 20 from the buffer INV and inverts the signal to a low signal. It is applied to the gate terminal (G) of the triac (TRAIC) through.

At this time, when the voltage difference is generated between the gate terminal G and the terminal terminal T1 of the triac TRIC and the triac TRIC is turned on, the commercial AC voltage from the AC power input terminal 1 is a drain pump. It is applied to (31) to drive the drain pump (31).

When the drainage stroke is completed according to the driving of the drainage pump 31, the laundry must be dewatered. In step S4, the drum washing machine determines whether the drum washing machine is dewatering according to the washing stroke of the drum washing machine under the control of the control means 20. If it is determined that the washing stroke determined by the control means 20 is a dehydrating stroke (Yes), the motor 41 must be driven. In step S5, the motor 41 is driven by the control means 20. Outputs a control signal for the motor drive means 40 through the output terminal (O2).

Accordingly, the motor driving means 40 receives the control signal output from the output terminal O2 of the control means 20 to drive the motor 41 to start the dehydration operation.

On the other hand, the drain pump 31 continues to drive under the control of the control means 20 until the dehydration stroke is completed.

Subsequently, in step S6, the initial water level data H1 due to the pressure in the drain pump 31 is detected by the water level sensing means 10 at the initial stage of the dehydration operation of the drum washing machine according to the driving of the motor 41. The initial water level data H1 is output to the control means 20.

In step S7, at the initial stage of the dehydration operation in step S5, the timer tc is counted by a timer built in the control means 20, and the water level during the predetermined time tm shown in FIG. If the dehydration time at the point where the data is maximized) has elapsed, and if the predetermined time tm has not elapsed (No), the time is counted until the predetermined time rm has elapsed.

On the other hand, when the determination result in the step S7 indicates that the time tc counted by the control means 20 has passed a predetermined time tm (Yes), the flow advances to step S8 to the control means 20. The water level data H2 that changes when the motor 41 rotates according to the set dewatering RPM, that is, the de-removable product and the wash water remaining in the laundry are drained to the drain pump 31 at one time, so that the pressure of the drain pump 31 is reduced. The high water level data H2 is changed to be detected by the water level detecting means 10, and the detected water level data H2 is output to the control means 20.

Therefore, in step S9, the control unit 20 calculates the water level difference Ha obtained by subtracting the initial water level data H1 from the water level data H2 detected by the water level sensing means 10, and in step S10, It is determined whether or not the water level difference Ha calculated in step S9 is larger than the reference water level data Hs set in advance in the control means 20.

When the water level difference Ha determined by the control means 20 is larger than the reference water level data Hs (Yes) as a result of the discrimination in step S10, the fine water product drained to the drain pump 31 and Since the washing water is an abnormal dehydration state due to the excessive generation of bubbles, that is, as shown by the dotted line in FIG. 4, in step S30, the motor driving means 40 stops the motor 41 under the control of the control means 20 to dehydrate the water. After stopping the stroke for a while, the control means 20 adjusts the rotational speed RPM of the motor 41.

That is, since the number of bubbles generated by the detergent decreases when the rotation speed RPM of the motor 41 decreases, the control means 20 lowers the dewatering RPM by adjusting the rotation speed RPM of the motor 41.

Subsequently, in step S31, a control signal for driving the motor 41 is output to the motor driving means 40 in accordance with the dehydration RPM lowered by the control means 20.

Accordingly, the motor driving means 40 receives the control signal output from the output terminal O2 of the control means 20 to drive the motor 41 to perform the dehydration operation.

When the dehydration stroke is completed, in step S32, the next washing stroke of the drum washing machine is performed under the control of the control means 20, and then the operation ends.

On the other hand, when the water level difference Ha determined by the control means 20 is not greater than the reference water level data Hs (No), the water is drained to the drain pump 31. In the step S16, the normal dehydration stroke is performed according to the program set in the control means 20, since the demineralized product and the washing water are the appropriate dehydration amount during the normal dehydration operation of the drum washing machine, that is, the solid washing line of FIG. The flow advances to step S32 to perform the operation of step S32 or less.

In addition, when the determination result in step S2 indicates that the washing stroke determined by the control means 20 is not a drainage stroke (No), the process goes to step S4 to determine whether the drum washing machine is a dehydrating stroke. If the washing stroke determined by the control means 20 is not a dehydrating stroke (No), the flow advances to step S32 and repeats the operation of step S32 or less.

According to the washing control method of the drum washing machine according to the present invention as described above, by the water level detecting means detects the water level data that changes during the dehydration operation of the drum washing machine and the detected water level data due to the excessive generation of bubbles In the case of more than the standard data, by controlling the washing operation so that the foam is drained normally, it is possible not only to solve the inconvenience caused by the front leakage of the foam, but also to satisfy the user's satisfaction.

Claims (2)

In the washing machine washing control method of the drum washing machine, the initial water level detection step of detecting the water level data of the initial stage of the dehydrating stroke of the drum washing machine, and the change depending on the amount of wash water and washing water to be drained when the dehydrating stroke time passes a predetermined time The level difference between the change level detection step for detecting the water level data, and the level difference between the change level data detected in the change level detection step and the initial level data detected in the initial level detection step is compared with the reference level data set in the control means. A foaming determination step for determining whether or not to generate, and if it is determined that the difference in water level in the bubble generation step is excessive generation of bubbles larger than the reference water level data, the dehydration operation is paused and the rinsing administration step is performed by rinsing the water by supplying the wash water. Washing control method of the drum washing machine, characterized in that consisting of. In the washing machine washing control method of the drum washing machine, the initial water level detection step of detecting the water level data of the initial stage of the dehydrating stroke of the drum washing machine, and the change depending on the amount of wash water and washing water to be drained when the dehydrating stroke time passes a predetermined time The level difference between the change level detection step for detecting the water level data, and the level difference between the change level data detected in the change level detection step and the initial level data detected in the initial level detection step is compared with the reference level data set in the control means. Bubble generation judging step of determining whether or not to generate, and if it is determined that the water level difference is excessive generation of bubbles larger than the reference water level data in the bubble generation step, it is characterized by consisting of a dehydration administration step of performing a dehydration stroke by lowering the dehydration RPM of the motor Washing control method of the drum washing machine.