JPH03146095A - Rinse controller for washing machine - Google Patents

Abstract

PURPOSE:To put in a finishing agent, etc., just before final rinse even when the rinse is executed more than three times by executing control not to execute intermediate dehydration in the process of (N-M) times rinse excepting for the first rinsing process when centrifugal force is operated M times by the rotation of a washing and dehydrating tank and the rinsing process is executed N times. CONSTITUTION:At the time of the first rinse, the muddy degree of liquid for prescribed time after the start of the rinse is measured by a transmissivity detector, which detects the transmissivity of light to the liquid in a water receiv ing tank, and the number of times for rinsing is determined. For example, when the third rinse is executed, the intermediate dehydration is executed be tween drainage and water supply in the normal rinse and the detergent included in laundry is excluded early. In this case, however, the intermediate dehydration in the second rinse is omitted so that the finishing agent can be put in the third rinse.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rinsing control device for a washing machine equipped with an automatic loading device for finishing agents, etc., and particularly to a rinsing control device for a washing machine that detects the light transmittance of the liquid in the tank. The present invention relates to a washing machine rinse control device that controls operation.

Conventional technology Conventionally, the rinse control device for this type of washing machine was
As shown in Publication No. 3-59716, a detection device is installed to detect the transparency of water, and if the transparency of the water does not reach a set value, rinsing is repeated each time.
There is a driving method that is based on word of mouth.

Problems to be Solved by the Invention However, in the operating method described above, if an automatic dosing device for finishing agents, etc. as shown in Fig. 4 is installed, 3.
There has been a problem in that the effect of the finishing agent is almost completely lost when rinsing is performed.

The reasons for this are as follows: First, the automatic loading device for finishing agents, etc. shown in FIG. 4 has the following structure. That is, 14 is a container containing an input liquid such as a softening agent, which is attached to the inner circumferential surface of the balancer 36, and the interior thereof has a horizontal partition wall 16 so that the chambers 1sa and 1sb are provided side by side. It is separated by. Sota room 15a, 15
Inside b, there are longitudinal partition walls 18 and 19 for partitioning the inside into two chambers 17a, 17b and 17c and 1d in the radial direction of the balancer. The earthen walls 18 and 19 are the outer casing 14a of the container 14.
The heights of the chambers 17a and 17b are slightly lower, and the difference in height forms communication portions 20a and 20b that communicate between the chambers 17a and 17b and between the chambers 17c and 1d.

Reference numeral 21 denotes a communication portion formed in the partition wall 16 to communicate between the chamber 17b and the chamber 17c. The bottom portion of the chamber 17b is inclined downward toward the communication portion 21. Reference numeral 22 denotes a discharge port for the input liquid formed at the lower part of the outer casing 14a corresponding to the chamber 17d, and the input liquid discharged from the discharge port 22 falls into the washing/drying tank 3.

Next, the function of the container 14 will be explained in relation to a washing program. Before starting washing, the input liquid is injected into the chamber 17a, and when intermediate dehydration is performed once, the liquid in the container 14 is subjected to centrifugal force by the rotation of the washing and dehydration tank 3, and the partition wall 1
It enters the chamber 17b from the communication portion 20a at the upper end of the tube 8, and is held in a state where it is pressed against the outer wall 23 of the chamber 17b by centrifugal force. When the centrifugal force ceases to act, the input liquid enters chamber 1.
7b to the communication portion 21 along the inclined surface of the chamber 17c.
Get into it. When a second intermediate dehydration is performed,
The input liquid moves in the same manner as the first time, and when the movement is finished, it comes out from the discharge port 22 and falls into the washing and dehydrating tank 3. That is,
The system is such that finishing agents are automatically added when intermediate dehydration is performed twice, so when rinsing is performed three times, intermediate dehydration is performed twice as shown in Figure 9. After the finishing agent, etc. are added, there are two more rinses, which causes the problem that the concentration of the finishing agent, etc. becomes diluted and its effect is lost.

Therefore, the present invention solves the above-mentioned conventional problems.
The purpose of the present invention is to provide a rinsing control device that injects a finishing agent immediately before the final rinsing even if rinsing is performed three or more times.

The second purpose is rinsing control that detects the degree of turbidity of the liquid with a transmittance detector, determines an appropriate number of rinses according to the degree of turbidity, and performs rational rinsing without depending on the feeling of the liquid. It is to be a device.

Means for Solving the Problem The first means of the present invention for solving this object is that when the centrifugal force due to the rotation of the washing and dewatering tank, which is rotatably disposed inside the tank, acts on the water receiver M times. The water receiver is equipped with an automatic loading device for loading finishing agents etc. into the tank, and a control means for controlling the operation of repeatedly performing a rinsing process consisting of drainage, intermediate dewatering, water supply, and rinsing operations, The control means includes:
To provide a rinsing control device for a washing machine characterized in that, when executing N rinsing steps, intermediate dehydration is not performed in (N-M) rinsing steps except for the first rinsing step.

In the second means, the water receiver is equipped with a transmittance detector that detects the transmittance of light of the liquid in the tank, and the control means is configured to detect the transmittance detector after a predetermined time from the start of rinsing during the first rinse. A washing machine rinse control device that determines the number of rinses based on the output data of the washing machine.

Effect According to the present invention, even if the water receiver is an automatic feeding device that automatically feeds finishing agent etc. into the tank during two intermediate dewaterings, when performing the third rinsing, the first With the exception of rinsing, there is no intermediate dehydration in one rinse, so finishing agents, etc. are added just before the final rinse, and the concentration of finishing agents, etc. is reduced to 1.
However, the effect will no longer be lost.

In addition, during the first rinse, the appropriate number of rinses is determined according to the degree of turbidity of the liquid, so if the degree of turbidity is small, economical rinsing can be performed with less water, and conversely, if the degree of turbidity is high, By increasing the number of rinses, you can perform effective rinsing without leaving detergent residue after washing. At this time, the number of rinses is 3.
Even if the finishing agent is used at a low concentration, the effect will not be lost.

EXAMPLE Hereinafter, an example of a fully automatic washing machine of the present invention will be described with reference to the drawings.

FIG. 2 is a sectional view of a fully automatic washing machine, in which 1 is an outer frame, 2 is a water tray, and 3 is a washing/drying tub. 36 is an annular balancer attached to the upper opening end of the washing/spin-drying tub 3, which reduces vibration during spin-drying. Reference numeral 14 denotes a container containing an input liquid such as a finishing agent attached to the inner circumferential surface of the balancer 36;
Its specific configuration is shown in FIG. 4, and since it is the same as the conventional example, the explanation will be omitted. Reference numeral 6 denotes a power switching mechanism for switching the power of the washing/extracting motor 5 so as to rotate the stirring blade 4 during washing or rinsing, and to rotate the washing/extracting tank 3 during dehydration. 7 is an air tank for generating pressure corresponding to the water level; 9 is an air hose for transmitting the pressure generated in the air tank 7 to the water level detection means 8;
The water receiver 10 is a drain valve for discharging the liquid in the tank 2 to the outside, the reference numeral 11 is a drain hose, and the reference numeral 12 is a water supply valve for supplying tap water into the tank 2. 13 is a transmittance detection unit for detecting the transmittance of the liquid in the tank 2, and as shown in FIG. 3, an infrared light emitting element 13a and a light receiving element 13b are used.
Consists of.

Next, FIG. 1 shows the main structure of a fully automatic washing machine.

In the figure, 25 is an input means for setting which process of washing, rinsing, and dehydration is to be performed, the water level, etc., and 26
2T is a display means for informing the user of the contents set by the input means 26 and the progress of washing; 8 is a water receiver for detecting the water level in the tank 2 and generating an electric signal;
28 is a bidirectional thyristor for driving the washing and dewatering motor 5, 29 is a bidirectional thyristor for driving the water supply valve 12, 30 is a bidirectional thyristor for driving the drain valve 1o, and 31 is a bidirectional thyristor for driving the drain valve 1o. A commercial power supply, 32 a power switch, 33 a transmittance detector for detecting the degree of contamination of the liquid in the water receiving tank 2, and 34 input the output voltage of the transmittance detector 33 to the A/D converter. A micro combinator (hereinafter referred to as a microcomputer) is a control means that performs A/D conversion using the data, and controls the operations of washing, rinsing, and dehydration processes based on the data.

FIG. 5 shows an example of the transmittance detector 33.

33a is a constant current source for receiving a signal from the microcomputer 34 and flowing a constant current to the infrared light emitting element 13a, 33b and 33d are resistors, and 33c is the microcomputer 34. This is a transistor that controls ON/OFF of the current flowing through the infrared light emitting element 13a according to a signal from the infrared light emitting element 13a.

An embodiment of the present invention in a fully automatic washing machine having the above configuration will be described with reference to FIGS. 6, 7, and 8.

Fig. 6 is a characteristic diagram of the output voltage Vo of the transmittance detector 33 from the start of washing to the end 1, where vw is the output voltage of the transmittance detector 33 during fresh water, and is output when water is supplied for the first time of rinsing. The microcomputer 34 changes the PWMO value and adjusts the current flowing through the infrared light emitting element 13a so that the voltage becomes VW. The microcomputer 34 that has been removed is the first rinse start time tR.
The output voltage vR1 of the transmittance detector 33 is measured at time tR1 after ItR (for example, 1 minute) has passed since o.

Since vw is always the value when water is fresh, the degree of turbidity of the liquid can be determined from the value of vRl. If the value of vRl is high, it is determined that the amount of detergent in the laundry was small. Use a rinse course like course 1 in Figure 7. On the other hand, if it is low, it is determined that the amount of detergent contained in the laundry was large, and rinsing is performed three times, for example, as in course 4 in FIG. 7. This 3
As shown in the sequence shown in Figure 8, in normal rinsing, the detergent that accumulates in the laundry is quickly removed by intermediate dehydration between draining water and water supply, but here, rinsing 3 Intermediate dehydration in the second rinse is omitted so that the finishing agent is added in the second rinse.

In this example, the water receiver was used as an automatic loading device for finishing agents, etc., which was automatically loaded into the tank during the two intermediate dehydration cycles.
The same effect can be obtained even if an automatic feeding device is used for finishing agents, etc., which are fed once or three times or more during intermediate dehydration.

Effects of the Invention As described above, according to the present invention, even if the water receptacle is an automatic feeding device that automatically feeds finishing agent, etc. into the tank during two intermediate dewaterings, it is possible to remove the water when performing the third rinsing. In addition, since there is no intermediate dehydration in one rinse except for the first rinse, finishing agents, etc. are added just before the final rinse, and the effect of finishing agents, etc. will not be lost even if the concentration of finishing agents, etc. is diluted. .

In addition, during the first rinse, the appropriate number of rinses is determined according to the degree of turbidity of the liquid, so if the degree of turbidity is small, economical rinsing can be performed with less water, and conversely, if the degree of turbidity is high, By increasing the number of rinses, you can perform effective rinsing without detergent remaining after washing. At this time, the number of rinses is 3.
Even if it is applied twice, the effect will not be lost even if the concentration of the finishing agent is diluted.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a fully automatic washing machine according to an embodiment of the present invention, and FIG. 2 is a sectional view of a fully automatic washing machine according to an embodiment of the present invention.
FIG. 3 is a sectional view of a transmittance detection section according to an embodiment of the present invention, FIG. 4 is a perspective view showing the internal structure of an automatic dosing device for finishing agents, etc. according to an embodiment of the present invention, and FIG. A circuit diagram of a transmittance detecting section according to an embodiment of the present invention, FIG. 6 is an output characteristic diagram of a transmittance detecting section according to an embodiment of the present invention, and FIG. 7 is a diagram showing rinsing contents according to an embodiment of the present invention. , FIG. 8 is a diagram showing a sequence of an embodiment of the present invention, and FIG. 9 is a diagram showing a sequence of a conventional example. 2...Water receiver is tank, 3...Washing and dehydration tank, 13...Transmittance detection unit, 14...Container, 1a, 17b . 17c, 1rd...room, 16.18.19...
...Partition wall, 20a, 20b, 21
・----・Communication part, 22...Discharge port, 33・
...Transmittance detector, 34...Microcomputer,
36... Balancer

Claims (2)

[Claims] (1) An automatic loading device for adding finishing agents, etc. into the water receiving tank when centrifugal force is applied M times due to spin rotation of the washing/dehydrating tank rotatably arranged inside the water receiving tank. and a control means for controlling the operation of repeatedly performing a rinsing process consisting of drainage, intermediate dehydration, water supply, and rinsing operations, and the control means is configured to perform one rinsing process when performing the rinsing process N times.
A rinsing control device for a washing machine, characterized in that intermediate dehydration is not performed during (N-M) rinsing steps except for the second rinsing step. (2) A transmittance detector that detects the light transmittance of the liquid in the water receiving tank is provided, and the control means controls the output data of the transmittance detector after a predetermined period of time from the start of rinsing during the first rinsing. The rinsing control device for a washing machine according to claim 1, wherein the number of rinsing steps N is determined based on the number of rinsing steps.