JPS6377493A - Automatic washing machine - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The field of industrial application relates to an automatic washing machine that performs a series of operations such as washing outside the washing machine, soaking and dewatering.

Conventional technology Conventionally, this type of automatic washing machine is generally equipped with a water level detection device using a diaphragm or the like to detect the washing water level in three levels: high, medium, and low. Depending on your busy schedule, you can manually switch the water level detected by this water level detection device to high, medium, or low, and also use a course setting device to set the time and course for a series of washing, rinsing, and spin-drying tasks. It was switched manually and activated each time a washing operation was performed.

Problems to be Solved by the Invention In automatic washing machines equipped with such conventional water level detection devices, the user judges the amount of laundry and uses the water level detection device to detect an appropriate water level according to the amount of laundry. set and then wash,
You have to set the time and course for the series of rinsing and spin-drying tasks on the course setting device yourself, and the amount of water and rinsing and spin-drying times are often inappropriate for the amount of laundry. If the washing time is too long, there are problems such as shrinkage of the laundry and waste of electricity and water.

The present invention is intended to solve these problems, and it is an object of the present invention to enable rinsing and spin-drying times and courses to be set in accordance with the amount of laundry.

Means for Solving Interlayer Points In order to solve this problem, the present invention provides water level detection means for detecting the water level in the washing tub in N stages, and the output of this water level detection means and stored water level data. a water level determining means for determining that the water level is nth from , a draining time detecting means for detecting the draining time immediately after washing, and an output of the draining time detecting means and the water level determining means stored in the storage means. When the drainage time sequence discriminating means for determining whether the drainage time is within a predetermined time based on the drainage time data corresponding to the output of This configuration includes a control means for automatically selecting a preset washing process after rinsing.

Effect: With this configuration, when the amount of laundry is small and the water level detection means is appropriately selected, the control after rinsing is automatically set to a preset process depending on the amount of drainage time. This prevents laundry from clumping and from unnecessary use of electricity and water.

Example Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

This will be explained with reference to FIG.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a water level detection means, which sets the water level in N stages (N is a natural number) depending on the amount of laundry. 2 is a water level determining means, which is similar to the water level detecting means 1;
and the output of the storage means 3 are input. Here, the memory setting 3 stores data regarding the n-th (1≦n≦N) water level, data on processes that match the water level, and the like. Reference numeral 4 denotes a drainage time detection means, which detects the drainage time immediately after washing. 5 is a drainage time determination means; the drainage time detection means 4;
From the output of and the data of the storage means 3 that stores the drainage time corresponding to the nth water level detected by the water level detection means 1,
Outputs whether it is within the predetermined drainage time. When it outputs that the water is within the predetermined drainage time, the water supply valve driving means 7 is controlled to open and close the water supply valve so that the control means 6 is controlled so that the steps after rinsing are set in advance. , to control the inflow of water into the washing tub. Further, the drain valve driving means 8 is controlled to open and close the drain valve, thereby controlling the draining of water from the washing tub. The pulsator drive means 9 is also controlled to rotate and stop the pulsator.

FIG. 2 is a block diagram showing the specific structure of this embodiment.

10 is a washing tub, and a pulsator 11 rotated by a pulsator drive circuit 9 is provided at the bottom. The water level detection means 1 is composed of an air pocket 1a provided on the side surface of the washing tub 10, a main body 1C that detects the washing water level in three stages using an air pocket 1b and a diaphragm. 12 is a microcomputer; The built-in program determines the water level, determines the drainage time, and then operates the water supply valve, drain valve,
It generates signals to drive each pulsator. Specifically, a storage section 12a that stores water level data, drain time setting values, etc., a remote section 12b that inputs the output of the water level detection means 1, the water supply valve drive means 7, the drain valve drive means 8, and a pulsator drive. an output section 12C1 that outputs a control signal to the means 9; the storage section 12a; an input section 12b;
It has an arithmetic control section 12d that controls each of the output sections 12c and performs data comparison operations and the like.

Note that 13 is a water supply valve that is opened and closed by the water supply valve drive means 7, and 14 is a drain valve that is opened and closed by the drain valve drive means 8.

Next, the operation of this embodiment will be explained. FIG. 3 shows the main part of a flowchart under the control of the microcomputer 12.

Generally, after putting the laundry into the washing tub 10, the user adds detergent, sets the process and water level according to the laundry, and operates the switch 15 to start washing. As a result of this operation, the microcomputer 12 opens the water supply valve 13 via the water supply valve driving means 7 in step 21 to allow tap water to flow in. On the other hand, when it is detected in step 22 that the water level has reached the set water level based on the output of the water level detection means 1, the nth water level is temporarily stored in the storage unit 12a, and the water level is sent to the storage unit 12a via the water supply valve driving means 7 in step 22. Close the water supply valve 13 with . Next, the microcomputer 12 starts the washing operation set in step 24. Once the specified washing operation is completed,
In step 25, a drainage operation is started. Next, in step 26, the microcomputer 12 counts the time required for the water in the washing tub to drain to a predetermined water level, and if it is within the drain time that matches the set water level, the process after rinsing set by the user is performed. Ignore this and proceed to the preset rinsing and subsequent steps.

In this way, in this embodiment, if the user sets the water level according to the amount of laundry, even if the steps after rinsing are set that do not match the amount of laundry, the water level after rinsing will be adjusted according to the drainage time immediately after washing. Since the process is automatically reset, it prevents shrinking of laundry and unnecessary use of electricity and water.

Effects of the Invention The present invention has a discriminating means capable of detecting and discriminating the water level in the washing tub, a discriminating means capable of detecting and discriminating the draining time immediately after washing, and inputting the outputs of the respective discriminating means. If the time is within a predetermined drainage time, the washing process after rinsing is controlled to be selected according to a preset setting, so the user can set the water level to suit the laundry. To provide an automatic washing machine that can automatically select washing steps after rinsing and does not shrink laundry or use unnecessary amounts of electricity or water.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a main part of an embodiment of the present invention, FIG. 2 is a detailed configuration diagram of the same, and FIG. 3 is a flowchart of the main part. 1... Water level detection means, 2... Water level discrimination means, 3... Memory means, 4... Drainage time detection means, 5...・Means for determining drainage time, 6...
... Control means, 7... Water supply valve drive means, 8.
... Drainage force drive means, 9 ... Pulsator drive means, 12 ... Micro cone pump,
13... Water supply valve, 14... Drain valve. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3

Claims (1)

[Claims] Water level detection means detects the water level in the washing tub in N stages (N is a natural number), and the nth (1≦n≦N) water level is determined from the output of this water level detection means and the water level data stored in the storage means. a water level determining means for determining whether the water level is the same, a draining time detecting means for detecting the draining time immediately after washing, and an output of the draining time detecting means and the draining time data according to the water level determining means stored in the storage means. a drainage time determining means for determining whether the drainage time is within a predetermined time; and when the drainage determining means outputs that the drainage time is within a predetermined time, automatic washing steps after rinsing set in advance are executed; An automatic washing machine characterized by being equipped with a control means for controlling the washing machine to select the desired washing machine.