JPS63164998A - 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 provides a washing machine that can perform washing suitable for specific clothes by changing the water level during the washing process and the rinsing process during washing. It is related to.

(Prior art) In conventional general washing machines, the water level in the washing tub during the washing process is the same as the water level during the rinsing process, and the user adjusts the water level according to the amount of laundry. I had selected. Recently, washing machines have been equipped with a water level detection means in the washing tub and a cloth amount detection means for detecting the weight of the laundry, and washing or rinsing is carried out at a water level corresponding to the amount of cloth detected by the laundry amount detection means. Some washing machines are equipped with sensors that do this, but even in this case, the user selects the water level during the washing process, and then selects the water level during the subsequent rinsing process if the previously selected water level is higher than the amount of cloth. The purpose was to conserve water by correcting 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 do the 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 is thoroughly cleaned. However, during the rinsing process, the water level Since the amount of water is low and the amount of water is low, the rinsing performance is poor, resulting in the inconvenience that detergent bones adhering to the laundry cannot be removed sufficiently. On the other hand, when the water level during the washing process is set high in consideration of rinsing performance, the movement of the cloth is slower than when the water level is low.
This results in the inconvenience that dirt cannot be removed sufficiently during the cleaning 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, water is supplied to the low water level set by the water level setting means, and then water is supplied for a certain period of time so that the water level during the rinsing process is the same as the water level during the cleaning process. The water level during washing and rinsing is changed so that the water level becomes higher.

(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 one embodiment of the present invention, 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 (+) detects the water level in the washing tub by dividing it into at least two levels including a low water level near the bottom of the paddle.

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 (1), 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 is stopped by operating the water supply valve driving means (5), and at the same time, the pulsator driving means (6) is activated. When activated, the pulsator rotates 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 (9) 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). (11) 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 i'1 that inputs the output from the water level control cam switch (9), etc.
((14), an output section (15) that outputs a control signal to the water supply valve drive means (5) and the pulsator drive means (6), f
It also includes 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. On the other hand, water level detection means (
When it is detected in step (102) by the output of the cam switch (9) which is the detector in step 1) that the water supply has been completed to the set low water level, the current water level is memorized and ffl<
(t3) and closes the water supply valve (12) in step (103) via the water supply valve driving means (5). Next, the microcomputer (ll) executes step (10
4), the pulsator (
8) Rotate and wash.

Thereafter, drainage and dehydration are performed in step (+05) (IOG). Next, in step (+07), the water supply valve (12) is opened via the water supply valve driving means (5) for the rinsing process.
7) Start water supply within 7 days. On the other hand, in step (108), a signal indicating that water has been supplied to the low water level near the bottom of the washing tub set by the cam switch (9) is sent to the cam switch (9).
), the timer built in the microcomputer (II) is started in step (109). Then continue to supply water and step (+10
) When the time counted by the timer reaches a preset constant time T, the water supply valve (12) is closed in step (1) to complete the water supply. The water level at this time is
The water level is higher than the low set water level near the bottom of the washing tub that was set before the start of washing by the amount of water supplied during a certain period of time T, and the rinsing in step (112) is performed at this higher water level. Performance will be ensured.

(Effects of the Invention) As explained above (During the washing process, the washing machine of the present invention sets the water level to a low water level near the bottom of the washing tub using a commonly used water level setting means. At this water level, particularly dirty laundry can be reliably washed with a strong water stream, increasing the cleaning power in the so-called washing process.In addition, during the rinsing process, water is supplied to the low water level during washing. Furthermore, by supplying water for a certain period of time, the water level is raised to perform rinsing and ensure the rinsing performance, so it is possible to perform washing that is particularly suitable for heavily soiled laundry, and as a result, the washing Save time, save water,
This allows you to save on detergent and electricity costs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of main parts showing one embodiment of the present invention, and FIG.
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, Go to Figure 3

Claims (1)

[Claims] A washing machine that automatically performs at least the washing process to the rinsing process, and is configured so that the water level can be set in multiple stages using a water level setting means, while during the washing process, the water level is set to a low level near the bottom of the washing tub. The water level is set by the water level setting means to perform washing with a small amount of water,
A washing machine characterized in that during the rinsing process, water is supplied to a low water level for washing set by the water level setting means, and then water is supplied for a certain period of time before rinsing is performed.