JPS63164999A - Washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a washing machine that performs washing suitable for specific clothes by changing the water level during the washing process and the rinsing process.

(Prior art) In conventional general washing machines, the water level in the washing tub during the washing process and the water level during the rinsing process are the same, and the user selected the water level. In addition, recently, the washing tub is equipped with a water level detection means and a cloth detection means for detecting the weight of the laundry. There are washing machines equipped with sensors that perform this process, but even in this case, the user selects the water level during the washing process, and the water level during the subsequent rinsing process is determined when the previously selected water level is higher than the amount of cloth. In some cases, the purpose was to save water by adjusting the water level to an appropriate level.

(Problems to be Solved by the Invention) However, in the conventional washing method as described above, stains may remain on certain clothes or rinsing may not be sufficient.

Specifically, when washing extremely dirty items such as jeans, work clothes, children's clothes with mud stains, etc., even though the amount of laundry is small, do not wash them at the same time as other items. I spend most of my time washing alone. In this case, since the amount of laundry is small, the water level in the washing tub is selected to be low and a strong water flow is selected to ensure that the laundry does not get dirty, but during the rinsing process, Since the water level is low and the amount of water is small, the rinsing performance deteriorates, resulting in the inconvenience that detergent bones adhering to the laundry are not removed sufficiently. On the other hand, if the water level during the washing process is set high in consideration of rinsing performance, the movement of the cloth will be slower than when the water level is low, resulting in the inconvenience that dirt will not be removed sufficiently during the washing process. .

Therefore, the washing process time must be longer than usual, and washing takes time and power consumption also increases.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention uses water level setting means to set the water level in the washing tub to a low water level near the bottom during the washing process. During the rinsing process, the water supply time to the low water level during washing set by the water level setting means is calculated using a certain constant, and the water supply time during the rinsing process is set. The water level during washing and rinsing is changed so that it is higher than the water level during the process.

(Function) As described in -, during the washing process, washing is performed at a low water level to increase the washing power, and during the rinsing process, rinsing is performed at a higher water level than during washing to ensure the rinsing performance, thereby increasing the washing time. This shortens the time and reduces power consumption.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a block diagram showing the configuration of this embodiment, in which (1) is a water level detection means, (2) is a water level discrimination means, and (3) is a storage means.

The water level detection means (1) detects the water level in the washing tub by dividing it into at least two stages including a low water level near the bottom of the tub.

The output of the water level detection means (1) and the output of the storage means (3) are input to the water level determination means (2).

The storage means (3) stores data regarding the water level and the like.

Further, the outputs from the water level determination means (2) and the storage means (3) are both input to the control means (4), and this control means (4) controls the water supply valve driving means (5). The water supply valve is opened and closed to control the inflow of water into the washing tub, and the pulsator driving means (6) is controlled to rotate and stop the pulsator.

The water supply valve is opened by the control means (4) to supply water into the washing tub, the water level is detected by the water level detection means (+), and the output from the water level detection means (1) is used as the water level discrimination means (2).
When the means (2) generates an output indicating that the water level has reached a predetermined level, the water supply valve drive means (5) is operated to stop the water supply, and at the same time, the pulsator drive means (6) The operation of the pulsator rotates the pulsator and enters the cleaning process. Also, in the rinsing step, water is supplied under the same control as during cleaning, and after the water supply is completed, the pulsator is rotated to perform rinsing.

FIG. 2 is a circuit diagram showing the specific configuration of this embodiment, and (7) in the figure is a washing tub, at the inner bottom of which there is a pulsator which is rotated and stopped by a pulsator drive means (6). (8) is provided. The water level detection means (1) connects the bottom of the washing tub (7) and a water level control cam switch (8) with a pipe (10) such as a PVC hose, and supplies water into the washing tub (7). In this way, the water level is detected by changing the air pressure applied to the water level control cam switch (9). (II) is a microcomputer, which determines the water level using a built-in program and generates signals for driving the water supply valve (12) and the pulsator (8), respectively. Specifically, a storage section (13) that stores water level data, etc., and an input section (+
4), water supply valve driving means (5) and pulsator driving means (
6), and an arithmetic control section (16) that performs data comparison operations and the like.

Next, the operation of this embodiment will be explained based on the flowchart of FIG.

Generally, after putting the laundry (17) and detergent into the washing tub (7), the user sets the water level to a low water level near the bottom of the washing tub (7) using the water level control cam switch (9).
Next, the washing start switch (18) is operated to suppress it. Through this operation, the microcomputer (11) drives the water supply valve (
12) and start water supply. Also, the timer built in the microcomputer (11) also has steps (102).
). On the other hand, the output of the cam switch (9), which is the detector of the water level detection means (1), causes
At step 03), when it is detected that the water supply up to the set low water level has been completed, the current water level is stored in the storage section (I3), and the water supply valve is activated at step (1) via the water supply valve driving means (5).
04) to close the water supply valve (12). Also, at the same time, a timer was started in step (102), but when the water supply to the set water level is completed, the time required for water supply is measured by counting the timer in step (105), and the data is stored in the storage section ( 13). Next, the microcomputer (11) in step (106)
The pulsator (8) is rotated via the pulsator drive means (8) to perform cleaning at a low water level, which is the set water level. Thereafter, drainage and dehydration are performed in steps (107) (+08).

Next, in step (109), the water supply valve (12) is opened via the water supply valve driving means (5) for the rinsing process.
) Start water supply within At the same time, step (1
Step 10) starts the timer built into the microcomputer (11). This water supply time is a constant constant K, which is independent of the output of the water level control cam switch (9), and is based on the water supply time tI during the cleaning process stored in the storage section (13) of the microcomputer (11). The calculation control unit (■6) calculates the water supply time Kti.
is determined, and water is supplied only during the calculated and determined water supply time Ktt. Here, if the constant is greater than 1, the water level can be at least higher than the low water level during washing. Therefore, the rinsing in step (113) is performed at a water level higher than the low water level during washing, and the rinsing performance is ensured.

(Effects of the Invention) As explained above, in the washing machine of the present invention, during the washing process, the water level is set to a low water level near the bottom of the washing tub using a commonly used water level setting means, and at this low water level. In particular, heavily soiled laundry can be reliably washed with a strong stream of water, increasing the cleaning power in the so-called washing process.In addition, during the rinsing process, the water supply time to the low water level during washing is reduced. The water supply time is set by calculation using a certain constant, and rinsing is performed at a higher water level than during washing to ensure rinsing performance, which makes it possible to perform washing particularly suitable for heavily soiled laundry. As a result, cleaning time can be shortened, and water, detergent and electricity costs can be saved.

[Brief explanation of the drawing]

FIG. 1 is a four-part block diagram showing one embodiment of the present invention;
The figure is a specific circuit diagram, and FIG. 3 is a flowchart of the main part. (1)...Water level detection means, (2)...Water level discrimination means, (3)...Storage means, (4)...Control means, ', -.

Claims (1)

[Claims] A washing machine that automatically performs at least a washing process to a rinsing process, and has a water level setting means for controlling the water level, and during the washing process, the water level setting means adjusts the water level in the washing tub to a level near the bottom. The water level is set to be low, and during the rinsing process, the water supply time to the low water level during washing set by the water level setting means is calculated using a constant constant, and the water supply time during the rinsing process is set; A washing machine characterized in that rinsing is performed at a water level that is at least higher than the water level during washing.