JPH057691A - Fully automatic washing machine - Google Patents

Abstract

(57) [Summary] [Purpose] In a fully automatic washing machine that automatically performs a series of steps of washing, rinsing, and dehydration, the water supply flow rate of the water supply valve is calculated from the time required to reach a predetermined water level during water supply, and the rinse is performed. The purpose of the present invention is to improve the rinsing efficiency by controlling the operating time of the rinsing stroke by, for example, extending the operating time of the water rinsing so as to overflow within the rinsing stroke time when setting the rinsing water rinse of the stroke. A water supply valve control means 11 having a water supply valve 7 for controlling water supply into an outer tub 1 having a washing and dehydrating tub 2 installed therein, and a water level detection means 14 for detecting a water level in the outer tub 1. And a stroke control means 8 for controlling a series of strokes such as washing, rinsing, dehydration, etc., the water level detecting means 14 detects the water level and measures the water supply time to the predetermined water level, and water rinsing in the rinsing stroke. At the time of setting, it has a water supply amount calculation processing means 15 for calculating the water supply amount of the water supply valve 7 from the measured water supply time to the predetermined water level, and the stroke control means 8
Then, the operation time of the rinsing process was configured to be controlled according to the water supply amount.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully automatic washing machine for automatically performing a series of washing, rinsing and dehydrating steps.

[0002]

2. Description of the Related Art Conventionally, a fully automatic washing machine of this type generally has a structure as shown in FIG. The configuration will be described below.

As shown in the figure, the outer tub 1 has a washing / dehydrating tub (hereinafter referred to as a washing tub) 2 installed therein, and an agitating blade 3 is rotatably disposed at the inner bottom of the washing tub 2. There is. The stirring blade 3 is driven by a motor 5 via a reduction mechanism 4. A drain valve 6 is provided at the bottom of the outer tub 1, and a water supply valve 7 is provided at the top. The motor 5, the drainage valve 6 and the water supply valve 7 are driven via the motor control means 9, the drainage valve control means 10 and the water supply valve control means 11 which are controlled by the stroke control means 8, respectively. Stroke control means 8
Is based on the setting from the setting means 12 and the stroke storage means 13
Necessary data is read out and each process of washing, rinsing and dehydration based on the set contents is executed by the control of each control means 9-11. The water level detection means 14 detects the water level in the outer tank 1, and the output thereof is input to the stroke control means 8.

The operation of the above structure will be described. First, when the operation is started after setting the stroke content by the setting means 12, the stroke control means 8 operates the water supply valve 7 to supply water up to the set water level, and then the motor control. After the means 9 is operated to drive the motor 5 for a predetermined period of time at a constant reversal cycle according to the set water level, the agitating blade 3 is used to wash the laundry, and then the drain valve 6 is operated to drain and drain the water. The stroke control means 8 operates the water supply valve 7 again to supply water up to the set water level, and then operates the motor control means 9 to drive the motor 5 for a predetermined time in a constant reversal cycle according to the set water level, and by the stirring blades 3. The laundry is rinsed, and after the rinse is finished, the final dehydration is performed.

[0005]

In such a conventional fully automatic washing machine, the stroke control means 8 operates the water supply valve 7 to supply water to the set water level, but when the water supply flow rate of the water supply valve 7 is very small. Takes a long time to reach the predetermined water level in the outer tub 1 that houses the washing and dehydrating tub 2, and in this state,
Alternatively, when a general rinsing process is performed, the water supply time is long and the overall operation time is only extended, and there is no problem in performance. However, in the rinsing process,
In order to improve the rinsing efficiency, water rinsing (overflow) is set, and when a small water level or a low water level such as a low water level is set, the rinsing is performed from the predetermined water level because the predetermined water level is low. However, since the water supply flow rate of the water supply valve 7 was small, the water could not overflow within the rinsing stroke time, and the rinsing efficiency could not be improved even with the water rinsing.

The present invention solves the above problem by calculating the water supply flow rate of the water supply valve from the time required to reach a predetermined water level during water supply so that overflow occurs within the rinse stroke time when water injection rinse is set in the rinse stroke. In addition, the purpose is to extend the operating time of water rinsing and to control the operating time of the rinsing stroke to improve the rinsing efficiency.

[0007]

In order to achieve the above object, the present invention provides a motor for driving a stirring blade arranged in a washing / dehydrating tank, and a motor control means for controlling energization of the motor. A water supply valve control means having a water supply valve for controlling water supply to an outer tub that houses the washing / dehydrating tub, a water level detection means for detecting a water level in the outer tub, and a series of washing, rinsing, dehydration, etc. And a water level detection means for detecting the water level and measuring the water supply time to the predetermined water level, and at the time of setting the water rinsing in the rinsing stroke, up to the predetermined water level measured above. The water supply amount of the water supply control means is calculated from the water supply time, and the stroke control means controls the operating time of the rinsing stroke according to the water supply amount.

[0008]

According to the present invention, in order to improve the rinsing efficiency in the rinsing process, the water rinsing (overflow) is set and the small water level or the low water level such as the low water level is set by the above means for solving the problems. At times, even when the water supply flow rate of the water supply valve is low, even if water is rinsed from a predetermined water level, overflow can occur within the rinse stroke time, and rinsing efficiency can be improved regardless of the water supply flow rate of the water supply valve.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

The operation will be described with reference to the drawings. First, the setting means 12 causes "washing", "rinsing" and "dehydration".
When the operation is started after setting the stroke content, the stroke control means 8 operates the water feed valve 7 from the water feed valve control means 11 and inputs water level information from the water level detection means 14 while supplying water up to the set water level. , Water supply amount calculation processing means 15
Water supply time h from the predetermined water level to the set water level via
1 is measured, this required water supply time h1 and washing and dehydration tub 2
After calculating the water supply amount Q of the water supply valve 7 from the inner volume V up to the set water level of the outer tub 1 in which the above is installed by the equation 1, the stroke control means 8 operates the motor control means 9 to operate the motor 5 according to the set water level. After washing the laundry with the stirring blade 3 for a predetermined period of time and washing the laundry with the stirring blade 3, the drain valve 6 is operated to drain and dehydrate the water. After that, the stroke control means 8 again supplies water in the same manner as the washing stroke. The water supply valve 7 is operated from the valve control means 11, water is supplied to the set water level while the water level information is input from the water level detection means 14, and the motor control means 9 is operated to operate the motor 5 at a constant reversal cycle according to the set water level. Then, the laundry is rinsed by the stirring blades 3 for a predetermined time, and after the rinsing is completed, the final dehydration is completed.

In the above operation, when the water rinsing is set by the setting means 12 to increase the rinsing efficiency, the water supply amount calculation processing means 15 measures the required water supply time h1 from the predetermined water level to the set water level. Then, according to the required water supply time h1 and the water supply amount Q of the water supply valve 7 calculated from the inner volume V up to the set water level of the outer tub 1 in which the washing / dehydrating tank 2 is installed, from the inner volume V of the set water level The water supply time h2 up to the internal volume Vo of the overflow is calculated by the equation 2, and this water supply time h2 is input to the stroke control means 8 and added to the operation time H of the water pouring rinse for operation control.

[0012]

[Formula 1]

[0013]

[Formula 2]

[0014]

As is apparent from the above embodiments, according to the present invention, the water level detecting means detects the water level and measures the water supply time to the predetermined water level, and at the time of setting the water rinsing in the rinsing stroke, The water supply amount of the water supply control means is calculated from the measured water supply time up to the predetermined water level, and the stroke control means controls the operating time of the rinsing stroke in accordance with the water supply amount to improve the rinsing efficiency in the rinsing stroke. In order to achieve this, when the water rinsing (overflow) is set, and even when the water level is set to a low water level such as a small water level or a low water level, even if the water flow rate of the water supply valve is small The overflow can occur within the rinse stroke time, and the rinse efficiency can be improved regardless of the water supply flow rate of the water supply valve.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a fully automatic washing machine according to an embodiment of the present invention.

[Fig. 2] System configuration diagram of a conventional fully automatic washing machine

[Explanation of symbols]

 1 Outer Tank 2 Washing Tank (Washing and Dewatering Tank) 3 Stirring Blade 5 Motor 7 Water Supply Valve 8 Stroke Control Means 9 Motor Control Means 11 Water Supply Valve Control Means 14 Water Level Detection Means 15 Water Supply Amount Calculation Processing Means

Claims (1)

Claim: What is claimed is: 1. A motor for driving an agitating blade disposed in a washing / dehydrating tub, a motor control means for controlling energization of the motor, and an exterior for incorporating the washing / dehydrating tub. Water supply valve control means having a water supply valve for controlling water supply to the tank, water level detection means for detecting the water level in the outer tank, and stroke control means for controlling a series of steps such as washing, rinsing, and dehydrating The water level detection means detects the water level and measures the water supply time up to a predetermined water level, and at the time of setting the water rinsing in the rinsing stroke, the water supply time from the measured water supply time up to the predetermined water level is supplied to the water supply valve control means. A fully automatic washing machine having a water supply amount calculation processing unit for calculating the amount, and the stroke control unit controlling the operating time of the rinsing stroke in accordance with the water supply amount.