JPS60119988A - Full-automatic washer - 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 the Invention The present invention relates to an all-white washing machine that controls the dewatering method according to the amount of cloth.

Conventional configuration and its problems Conventional fully automatic washing machines perform intermittent dehydration by turning on and off the motor that rotates the washing and dehydrating tub before dehydrating after washing and rinsing to ensure a smooth dehydration process. A process was set up. However, this intermittent dehydration is 0N-OFF.
The cycle is set in a timer program and remains constant regardless of the amount of cloth. For this reason, when the amount of cloth is small, intermittent dehydration is performed more than necessary, and when the motor is turned ON and OFF, a harsh sound is generated.

Purpose of the Invention The purpose of the present invention is to eliminate the above-mentioned conventional drawbacks, and to provide a fully automatic washing machine that performs appropriate intermittent dehydration according to the amount of clothes to be washed and rinsed, and performs the dehydration process smoothly. do.

Structure of the Invention The fully automatic washing machine of the present invention includes: a water flow intensity detection means for detecting the strength of water flow in the washing/dehydration tank; a water flow intensity comparison means for comparing the output of the detection means with a predetermined reference value; A water level control means for controlling the water level in the washing and dehydration tank according to the output of the comparison means, a water amount storage means for storing the water level in the washing and rinsing processes, and an intermittent dehydration determination for determining the intermittent dehydration cycle according to the water level. and an intermittent spin control means that controls the pulsator drive means to change the intermittent spin cycle according to the water level, and the intermittent spin control means controls the pulsator drive means to change the intermittent spin cycle according to the amount of cloth (water level) in the washing/spin tank. It is designed to run the process smoothly.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. 1 is a water flow intensity detection means for detecting the strength of the water flow in the washing and dehydration tank; 2 is a detection value detected by the water flow intensity detection means 1 and a predetermined reference value set in consideration of fabric damage, cleaning performance, etc. 3 is a water level control means for controlling the water supply valve drive means 4 to supply water at a predetermined water level. 5 is a water level storage means for storing the water level set in the washing and rinsing processes; 6 is a water level storage means for storing the water level set in the washing and rinsing processes; and 6 is a motor 0N-OFF cycle number during intermittent dehydration before dehydration after the washing and rinsing processes, according to the water level and the amount of cloth. An intermittent dehydration determining means 7 determines the intermittent dehydration cycle to be changed, and 7 is an intermittent dehydration control means that controls the pulsator drive means 8 to turn the motor ON-OFF.

FIG. 2 is a circuit diagram showing a specific configuration of this embodiment.

9 is a washing and dehydrating tank, and a pulsator 10 is provided at the bottom. 11 is an outer tank, and a motor 12 and a drain valve 13 are attached to the bottom. Further, the outer tank 11 is suspended and supported by the main body 16 by a vibration isolating mechanism 14. 17 is a water supply valve.

18 is a water level detection unit that detects the water level in the outer tank 11, and 19 is a microcomputer, which detects the amount of cloth in the washing and dewatering tank 9 from the load current of the motor 12 according to a stored program, and operates according to the load current of the motor 12. Water is supplied to the water level, an intermittent dewatering cycle is set according to the amount of fabric (water level), and a signal is generated to drive the drain valve 13, water supply valve 17, and motor 12. The microcomputer 19 controls the motor 12
Comparison/calculation control unit 1 that controls the input unit 19a, output unit 19b1, and storage unit 19C that input the load current and the output from the water level detection unit 18, respectively, and performs data comparison calculations, etc.
9 (consisting of 5).

Next, the operation of this embodiment will be explained. FIG. 3 shows the main part of a low chart under the control of the microcomputer 19. After putting the laundry and detergent into the washing and dewatering tank 9, a switch is operated to start washing. With this operation, the microcomputer 19 opens the water supply valve 17 in step 20 to supply water.

In step 21, it is determined whether the water level in the outer tank 11 has reached the minimum water level (first) /ζ, and water is supplied until the minimum water level is reached.

When water is supplied at the minimum water level, the water supply valve 17 is closed in step 22. Then, step 23 drives the pulsator 1o.
), detecting the load current to the motor 12 in step 24,
In step 25, it is determined whether the current water level is an appropriate water level based on the magnitude of the load current by comparing it with a predetermined reference value, and if it is determined that the water level is low, the process proceeds to step 26.
Open the water supply valve 1 and supply water again. Then, the water level detecting section 18 detects whether the water level has reached one level below the minimum water level, and it is determined in step 27 whether the water level has reached that level, and water is supplied until the water level reaches that level. In this way, the operations from step 22 to step 27 are repeated, and water supply and determination are repeated until the optimum water level in the washing/dehydration tank 9 is reached. When the optimum water level is reached, the water level is stored in step 28. Then, the process moves to step 29 and washing is performed. When washing is completed, an intermittent spin cycle is determined in step 30. Intermittent dehydration is used to smoothly perform the dehydration process after washing and rinsing, and since the washing liquid contains a large amount of detergent, the liquid removed from the clothes during the dehydration process may cause foaming. In some cases, the washing and dehydrating tub 9 and the outer tub 11 are filled with bubbles, and the washing and dehydrating tub 9 does not reach a predetermined spin speed. To prevent this, the motor 12 that rotates the washing and dehydrating tank 9 is turned 0N-OFF.
After repeating this process to remove a certain amount of moisture contained in the clothes, the process moves on to the dehydration process.

In the case after the rinsing step, if the dehydration step is suddenly started after the draining is finished, the water dehydrated from the clothes hits the outer tank 11 and generates a rustling sound. To prevent this, intermittent dehydration is performed. Therefore, this intermittent dehydration is 0N-O
As for the FF cycle, it is necessary to increase the number of ON-OFF cycles as the amount of clothes in the washing process and the tinting process increases.

In addition, when setting the optimum water level in steps 22 to 27, the water level is set so that the larger the amount of clothing, the higher the water level. It is determined to increase the number of times. Then, water is drained, and if the water level is low, intermittent dehydration is performed in step 312L by turning ON-OFF n times, and if the water level is medium, in step 31b,
Intermittent dehydration in which n+a ON-OFF cycles are performed; if the water level is high, intermittent dehydration is performed in step 310 in which n+b ON-OFF cycles are performed. Here, n, a, and b are positive natural numbers and are a (b). After performing the above intermittent dehydration, the process moves to step 32, the dehydration process.

Here, the intermittent dehydration methods are classified into three types according to the water level, but it is not impossible to say that it is also possible to divide them into more detailed categories and control them more precisely.

Still, here, the motor 12 is 0N-O in intermittent dehydration.
As mentioned about the number of FF, 0N-OF depending on the water level.
It goes without saying that it is also possible to perform intermittent dehydration suitable for clothing by changing the F time.

According to the above embodiment, by performing intermittent spin-drying according to the amount of clothes to be washed, the spin-drying process can be carried out smoothly, and insufficient rinsing due to poor spin-drying or noise during spin-drying can be reduced. be.

Effects of the Invention The fully automatic washing machine of the present invention includes means for detecting the strength of water flow in the flow layer and dehydration tank and controlling the water level to suit the clothes, and for controlling the motor to 0N in the intermittent dehydration process according to the water level. -By providing a control means that determines the OFF condition, drives the pulsator, and changes the intermittent spin cycle according to the water level, it is possible to perform intermittent spin according to the amount of clothes to be washed, making it possible to smoothly It is possible to provide an excellent fully automatic washing machine that can perform a dehydration process, reduce insufficient rinsing due to poor dehydration, and reduce noise during dehydration.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a main part of an embodiment of the present invention, FIG. 2 is a detailed circuit diagram thereof, and FIG. 3 is a flowchart of the main part. 1. Water flow intensity detection means, 2. Water flow intensity comparison means,
3.Water level control means, 5..Water amount storage means, 6.
... Intermittent dehydration determination means, 7 ... Intermittent dehydration control means -18 ... Pulsator drive means, 9 ... Washing tank and dehydration tank, 12 ... Motor, 13 ... Drain valve, 1
7... Water supply valve, 18- ・Water level detection means, 19
・Microcomputer. Name of agent: Patent attorney Toshio Nakao and one other person Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] A water flow strength detection means for detecting the strength of the water flow in the washing and dehydration tank; a water flow strength comparison means for comparing the output of the detection means with a predetermined reference value; Water level control means for controlling the water level in the tank, washing,
Water amount storage means for storing the water level in the rinsing process; intermittent dehydration determining means for determining the intermittent dehydration cycle according to the water level; and intermittent dehydration for controlling the pulsator drive means to change the intermittent dehydration cycle according to the water level. Fully automatic washing machine with control means.