JPH03165797A - Twin tub type washing machine - Google Patents

Abstract

PURPOSE:To carry out the rinsing or centrifugally drying operation on a drain tub side with proper setting, by installing a control means for automatically setting the course in the rinsing operation or the drying time in the centrifugally drying operation which is executed on the drain tub side, on the basis of the detection signal outputted from a capacity detecting means. CONSTITUTION:A capacity detecting member 57 is installed on a washing tub 2 side, and the load quantity applied to a motor 6 is detected by detecting the phase difference of the voltage applied to the washing motor 6 and the electric current which flows in the motor 6, and then the quantity of the laundry accommodated in the washing tub 2 is detected. Further, a microcomputer 53 receives the detection signal supplied from a water level sensor 58 for detecting the water level in the washing tub 2. The microcomputer 53 controls washing, rinsing, and centrifugally drying operation according to a control program stored inside.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a two-tub washing machine that is equipped with a washing tank and a dehydration tank, and is configured so that a rinsing operation can be performed on the dehydration tank side. Regarding.

(Prior art) In this type of two-tub washing machine, a dehydration basket is provided in the dehydration tank, and a water sprinkling tube is also provided in the dehydration basket, and the dehydration basket is rotated while spraying water from the water sprinkling tube. By doing so, the detergent adhering to the laundry is washed away with the water. There are three rinsing courses that are executed in the dehydration tank, such as "Economy", "Standard", and "Careful", and the user can select and set the course according to the amount of laundry. There is. Furthermore, the user selects and sets the spin-drying time of the spin-drying operation that is subsequently executed after the rinsing operation, depending on the amount of laundry.

(Problem to be Solved by the Invention) However, with the above conventional configuration, when performing rinsing and spin-driving operations in the spin-drying tank, the user must select and set the course and spin-drying time depending on the amount of laundry. figure,
It was cumbersome to operate and not easy to use, as it required the effort of determining the amount of laundry and making each setting. Also, if you misjudge the amount of laundry, or set the course or spin time incorrectly,
There has been a drawback that rinsing and dehydration may be insufficient, or rinsing and dehydration may be excessive, resulting in a large amount of waste.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to improve usability, enable rinsing or dehydration to be performed on the dehydration tank side with appropriate settings, and prevent the configuration from becoming complicated even though it is configured in this way. We offer two-tub washing machines.

[Structure of the Invention] (Means for Solving the Problems) A two-tub washing machine of the present invention is equipped with a washing tub and a dehydration pillow, and is capable of performing a rinsing operation on the side of the dehydration tank, in which the washing machine A capacity detecting means is provided on the washing tub and detects the capacity of the laundry stored in the washing tub, and a rinsing operation is executed in the spin-drying tub based on a detection signal outputted from the capacity detecting means. The feature is that it has a control means that automatically sets the dehydration time of the course or dehydration operation.

(Function) According to the above means, the capacity of the laundry stored in the washing tub is detected by the capacity detection means during the washing operation on the washing tub side. When performing a rinsing operation or a dehydration operation on the dehydration tank side, the course of the rinsing operation or the dehydration time of the dehydration operation is automatically set based on the detection signal output from the capacity ffi detection means. It eliminates the need to judge the amount of laundry and make various settings, making it easier to use.

Further, since there is no error in determining the amount of laundry and setting the course and spin-drying time, the rinsing or spin-drying operation performed in the spin-drying tank can be appropriately executed. Furthermore, since the capacity detection means is provided on the washing tank side to execute the washing operation, there is no need to separately provide a capacity detection means on the dehydration tank side, which makes the configuration complicated. Not at all.

(Example) An example of the present invention will be described below with reference to the drawings.

First, in FIG. 2, a washing tank 2 and a dehydration tank 3 are disposed inside an outer box 1. An agitator 4 is installed at the inner bottom of the washing tank 2.
The agitator 4 is driven to rotate in forward and reverse directions by a washing motor 6 disposed on a base plate 5. A dehydration basket 7 is provided in the dehydration tank 3, and this dehydration basket 7
is rotationally driven by a dewatering motor 8 disposed on the base plate 5.

A water spray tube 9 made of a porous material is fixed inside the dewatering basket 7. Water is supplied to the water spray tube 9 and the dehydration tank 7 through a water supply valve 10 on the dehydration tank side.
The laundry can be rinsed with a shower on the dehydration tank 3 side. Water is supplied into the washing tank WI2 through a water supply valve 11 on the washing tank side, and a drain valve 12 is provided in a drainage channel for discharging water in the washing tank 2. Note that the maximum amount of laundry that can be rinsed in the shower on the spin-drying tub 3 side is set to be equal to the maximum amount that can be rinsed on the washing tub 2 side.

An operation box 13 is disposed at the upper rear portion of the outer box 1, and an operation panel 14 as shown in FIG. 3 is provided on the front surface of the operation box 13. This operation panel 14 includes switches and indicators related to the operation of the washing tank 2, such as a water flow selection switch 15, a water level selection switch 16, a washing time setting switch 17, a rinsing content setting switch 18, a drain switch 19, and a water level selection switch 16. A start switch 20 which also serves as a stop switch is provided, and indicators 21 to 35 made of light emitting diodes are provided.

In addition, as switches and indicators related to the operation of the dehydration tank 3 side, a shower rinse content setting switch 36, a dehydration time setting switch 37, and a start switch 38 that also serves as a - time stop switch are provided, and a light emitting diode is provided. Displays 39 to 44 are provided.

On the other hand, in FIG. 1 showing the electrical configuration, the commercial AC power supply 45 includes the washing motor 6, the dehydration motor 8, the dehydration tank side water supply valve 10, the washing tank side water supply valve 1, and the drain valve 12. 52 as shown. The triacs 46 to 52 are turned on and off by a microcomputer 53 serving as a control means, and the microcomputer 53 is supplied with control power from a constant voltage circuit 54.

The microcomputer 53 receives various switch signals from a switch input section 55 consisting of the various switches 15 to 20 on the washing chamber 2 side and the various switches 36 to 38 on the dehydration tank 3 side. The microcomputer 53 is connected to various indicators 21 on the washing tank 2 side.
to 35 and various indicators 39 to 4 on the dehydration tank 3 side
A display drive signal is given to the display unit 56 consisting of 4. Also,
The microcomputer 53 is configured to receive a detection signal output from the capacitance detection means 57.

This capacity detection means 57 is provided on the washing tank 2 side, and detects the amount of load applied to the motor 6 by detecting, for example, the phase difference between the voltage applied to the washing motor 6 and the current flowing through the motor 6. The amount of laundry stored in the washing tub 2 is thereby detected. Furthermore, the microcomputer 53 receives a detection signal from a water level sensor 58 that detects the water level in the washing tank 2. The microcomputer 53 controls washing, rinsing, and dehydration operations according to an internally stored control program.

Next, the operation of the above configuration will be explained with reference also to FIGS. 4 and 5.

4 is a flowchart showing an outline of the control program stored in the microcomputer 53. FIG. 4(a) shows the washing operation on the washing tank 2 side, and FIG. 4(b)
shows the shower rinsing operation and dehydration operation on the dehydration tank 3 side.

First, as shown in FIG. 4(a), a washing operation is performed on the washing tank 2 side. When the start switch 20 is operated to start operation, water is supplied into the washing tub 2 up to the "low" water level, which is the water level for determining the amount of laundry. Thereafter, the washing motor 6 is energized, the amount of laundry accommodated in the washing tub 2 is detected by the capacity detection means 57, and the amount of laundry is stored (step knob Sl). Subsequently, a washing course according to the amount of laundry is automatically set (step S2). Then, after additional water is supplied to a water level corresponding to the amount of laundry, the washing motor 6 is energized and a washing time operation set according to the amount of laundry is performed (step S3).

Next, when the above-described washing operation is completed, the laundry is transferred from the washing tub 2 to the dehydration tank 3, and a shower rinsing operation and a dehydration operation are performed on the dehydration tank 3 side.

When the start switch 38 is operated to start the shower rinsing operation, the amount of laundry detected in the washing operation described above is read out, and the course of the shower rinsing operation and the spin-drying time of the spin-driving operation are automatically set based on the amount of laundry. (Step S4).

In this case, as shown in the table in Figure 5, the amount of laundry is 1 kg.
"Saving" course and "1 minute", 1-2.5k when:
When the weight is 2.5 kg, the "Standard" course and "3 minutes" are set, and when the weight is 2.5 kg or more, the "Careful" course and "5 minutes" are set. still,
In the shower rinsing operation, water is first dehydrated for 1 minute, then water is supplied for 1 minute with the dehydration motor 8 cut off, and then the dehydration motor 8 is energized and dehydration is performed for 1 minute. ``1 cycle'' is repeated a set number of times for each course. Then, a shower rinsing operation is performed according to the course set above (step S5), followed by a dehydration operation for the dehydration time set above (step S6).
).

According to this embodiment having such a configuration, when executing the shower rinsing operation and the dehydration operation on the dehydration FfjB side, the course of the shower rinsing operation and the dehydration operation are determined based on the detection signal output from the capacity detection means 57. Since the spin-drying time is automatically set, there is no need to judge the amount of laundry and set the course and time, which can improve usability.

Further, since there is no need to make a mistake in determining the amount of laundry or setting the course and dehydration time, the shower rinsing operation and dehydration operation can be appropriately executed on the dehydration tank 3 side.

That is, it is possible to prevent insufficient rinsing and dehydration, or excessive rinsing and dehydration, resulting in a large amount of waste. Furthermore, as the capacity detection means 57, the one provided on the washing tank 2 side for executing the washing operation is used, and there is no need to separately provide a capacity detection means on the dehydration tank 3 side, so the configuration is simplified. There is no complexity and therefore no high cost.

In the above embodiment, after one washing operation is performed on the washing tank 2 side, while the shower rinsing operation and dehydration operation are performed on the dehydration tank 3 side, the second washing operation is performed on the washing tank 2 side. may be executed in parallel. In this case, when the second washing operation on the washing tank 2 side is completed, and the first shower rinsing operation and dehydration operation on the dehydration tank 3 side are completed, the second shower rinsing operation and dehydration operation are performed on the dehydration tank 3 side. It performs dehydration operation, and in that case, the above 2.
The course of the second shower rinsing operation and the spin-drying time of the spin-drying operation may be set based on the amount of laundry detected in the second washing operation. Thereafter, the third and subsequent washing operations, the third and subsequent shower rinsing operations, and dehydration operations may be repeated.

In addition, in the above embodiment, only the washing operation is performed on the washing tank 2 side, and the shower rinsing operation and dehydration operation are performed on the dehydration tank 3 side, but the invention is not limited to this.
Washing and rinsing operations may be performed on the washing tank side, and dehydration operation may be performed on the dehydration tank side. In this case,
To automatically set the spin-drying time of a spin-drying operation executed in a spin-drying tank based on the amount of laundry detected during a washing operation.

[Effects of the Invention] As is clear from the above description, the present invention includes a capacity detection means that is provided on the washing tub side and detects the capacity of the laundry stored in the washing tub, and also includes The configuration is equipped with a control means that automatically sets the course of the rinsing operation or the dehydration time of the dehydration operation to be executed on the dehydration tank side based on the output detection signal, so it is easier to use and can be executed on the dehydration tank side. The rinsing or dewatering operation can be performed with appropriate settings, and even with this configuration, it is possible to prevent the configuration from becoming complicated, which is an excellent effect.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an electrical configuration diagram, FIG. 2 is a longitudinal front view, FIG. 3 is a front view of the operation panel, FIG. 4 is a flowchart, and FIG. FIG. 3 is a diagram showing a table showing the relationship between the amount of laundry, the course of the shower rinse operation, and the dehydration time of the dehydration operation. In the drawings, 2 is a washing tank, 3 is a dehydration tank, 53 is a microcomputer (control means), and 57 is a capacity detection means.

Claims (1)

[Claims] 1. In a device that is equipped with a washing tank and a dehydration tank and is capable of performing a rinsing operation on the dehydration tank side, a capacity detection device that is provided on the washing tank side and detects the volume of laundry stored in the washing tank. and a control means for automatically setting the course of the rinsing operation or the dehydration time of the dehydration operation to be executed on the dehydration tank side based on the detection signal output from the capacity detection means. Two-tank washing machine.