JPS6088594A - 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 (Technical Field) The present invention detects the degree of rinsing based on the change in the degree of contamination (light transmittance) of the washing tub. Washing machine 1 configured to control the Susuki operation
The present invention relates to gag machines, and in particular to the cleaning treatment of the turbidity measurement unit disposed in drainage channels.

(Prior Art) Recently, various washing machines have been proposed and developed that are able to always exhibit a high susuki effect by detecting the degree of sootness based on changes in the degree of contamination of the rinse water and controlling the susuki operation.

An example of this is explained in accordance with FIGS.
Pollution degree measuring section 3f: Provided and the measurement 7r+≦3
By inserting a drain valve 5'f in the latter stage and arranging a light emitting element 6 and a light receiving element 7 facing each other on both sides of the pollution level measuring section 3, the light emitted from the light emitting element 6 and transmitted through the pampas water is received. It is configured to be received by element 7. The amount of light received by the light receiving element 7 changes with the change in water contamination 1.1 (light transmittance), and the output changes as shown in the third diagram according to the amount of received light. Ir when the clearance level is detected by the output change of 7 and the output wanders to a predetermined level.
The rinsing operation is completed by completely stopping the power supply to the 1VC pulsator drive motor.

However, when it comes to washing machines like this, dirt on the transparent wall 4 of the turbidity measurement unit 3 becomes a problem, and the dirt sticks to the transparent wall 4, causing the transparent wall 4 to become dirty. When the light transmittance decreases, it is not possible to accurately detect the progress of the sloping degree, and an erroneous judgment VC may cause the suzuki movement to end in an incomplete state, or the suzuki movement may not be completed properly. 1. fLL causes inconveniences such as being connected.

(Purpose) The present invention has been designed in consideration of the above points, so that it is possible to temporarily open the drain valve during the period from the start of water supply to the start of pollution level measurement during the pampas season. The turbidity of the pollution level measuring section is cleaned using the 5W, and the conventional inconvenience (r 5W) is removed.(Example) An embodiment of the invention will be described in detail with reference to FIGS. 1 to 3.

In addition, in Figures 1 and 2, 8 is a pulsator and 9 is a pulsator.
10 is a splinter that biases the drain valve 5 in the closing direction, and 10 is a solenoid that opens the drain valve 5 when energized.Next, in FIG. 4, 11 is a microcomputer, mainly a central processing unit ( Hereinafter referred to as CPU.)12
, an electronic timer 13, a read-only memory (hereinafter referred to as ROM) 14, an arbitrary access memory (hereinafter referred to as RAM) 15, and an interface (input/output signal processing circuit) 16. The above ROMI4 has CP
IJ1 of UI2] control program is stored, and R
A Ml 51'j Used as data memory of the CPU 12. The electronic timer 13 counts a predetermined time according to instructions from the CPUI 2 and outputs a signal after a predetermined time.07 is a light receiving element, 17 is a power switch, and 18t is a washing tub 1.
IO is a solenoid for the drain valve 5, 19 is a solenoid for the water supply valve, and 20 is a pulsator drive motor.

Then, the state of the above input terminal 111 is taken in by 1θ゛L through the interface 16, and the output of the ROMI 40 is also washed away. Judging processes such as pampas grass, drainage, etc., and controlling each output side necessary to execute the process, the process transition is controlled by an electronic timer + aV:
This is done in conjunction with CI'UI2.

In the above configuration, the control during the water supply operation in the misfire January Q' Suzuki process is performed, and the (7) jltlJ control is performed as in the flowchart I shown in Figure 5. It will be done.

First, the 62 steps of washing and draining are performed sequentially as is well known in the art, and at the end of the draining process, ! l When flag area A of RAM I5 is specified, CPUI21i;lRA
Specified ζ base of flag area A of M+5 (s RO
Rinse control program contents in M14 (I-114er
'From Riko to Filter, Flownaya-I, shown in Figure 5.
21°・)Q こ1111旧11-ノる.

In FIG. 5, when moving to the rinsing step, first, the solenoid 19 is energized to open the water supply valve and water supply to the washing tub 1 is started. Then, the water level in the washing tub l gradually rises Q and eventually reaches the valve opening water level S1. l
x By detecting water level from the water level sensor 18 and energizing the solenoid 10 for an extremely short period of time (preferably 1 second or less), the drain valve 5 is temporarily opened, and all fresh water in the washing tub 1 is drained through the drain path 2. It is discharged to the outside through . Due to this flow of fresh water, the inner surface of the first wall 4 through which the turbidity measurement unit 3 is transparent is washed away.
The dirt adhering to the transparent wall 4 is washed away, and the transparent wall 4 becomes clean and can exhibit high light transmittance. In addition, it is desirable to set the valve opening water level S1 to a high level (the higher the water level, the stronger the water force during drainage, and the higher the cleaning effect can be achieved. For example, the water level slightly lower than the specified water level S2 for rinsing) Set.

Then, when the water level in washing 4+, jJ l reaches the specified water level S2 due to continued water supply, this is set to the water level sen→)--
18 and closes the water supply valve to stop water supply. Next, the pulsator drive motor 20 is energized and driven to rotate the pulsator 8 to perform the rinsing operation, and thereafter controlled in a conventionally known manner. Therefore, Susukino water is generated by Suzukiko A'1', IJ, and Zu1z optical element 6 and light receiving element 7? , the change in turbidity (light transmittance) is measured to detect the degree of clearness, and the measurement ends when the degree of clearness is reached.
Since the J wall 4 is in a clean state, this can be done accurately, and no inconvenience will occur due to incorrect gain.

In addition, the unexploded F3J] Opening of water control valve 5 at VC I+,
] Pregnancy is not limited to the period when j = eel in the above embodiment, but may be appropriately selected within the period from the start of water supply to the month when pollution level measurement starts.

(Effect) As mentioned above, in case of unexploded JK, it is possible to measure the degree of pollution by using the fresh water supplied into the washing tub. It is possible to eliminate all inconveniences such as the determination of the quality of the grass and the completion of the pampas grass in an incomplete state.

[Brief explanation of drawings]

Fig. 11 is a schematic diagram of the washing machine, Fig. 21 is a diagram showing the open state of the same drain valve, Fig. 3 is a characteristic diagram of the light receiving element, and Fig. 4 is a diagram of the washing machine of the present invention. FIG. 5, which is a block diagram of the entire control circuit, is a flowchart during water supply operation in the Susukino process. 1: Washing tub, 2: Drainage channel, 3: Pollution degree measuring section. 4: Transparent wall, 5: Drain valve, 6: Light emitting element, 7: Light receiving element. Agent Patent Attorney Aihiko Fukushi (and 2 others) No. 1 Figure 2 Figure S, χ I S Kato --- Katiteru *7 P + e6 i Tora Dai, 41 Tsu 1 Basket, Figure 5

Claims (1)

[Scope of Claims] 1. A pollution degree measuring section is installed in the drainage channel of the washing tub by making the control channel wall into a transparent 1v1 wall, and at the same time, a drain valve is inserted at the latter stage of the measurement) A light-emitting element and a light-receiving element are arranged facing each other at 1°'1° on both sides of the Susukino water. A washing machine characterized in that the drain valve is temporarily opened and washed within a period from the start of contamination to the start of contamination. 2. The water level at which the valve opens is set to a water level slightly lower than the specified water level at the time of washing. 4) 1. The washing machine according to claim 1, wherein the water valve is set to -11,7 when the water level in the washing tub reaches the valve opening water level.