JPS6187595A - Rinsing apparatus of washing apparatus - 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 fields> The present invention relates to a rinsing device for washing 1Th7411.

<Prior art> 1 Conventionally, rinsing consists of a water supply operation in which water is supplied to the washing tub by opening an electromagnetic water supply valve while the pulsator is stopped, and a water supply agitation operation in which the pulsator is rotated to rinse and agitate while supplying water to the washing tub. 2. Description of the Related Art There is a known washing machine rinsing device that is equipped with an optical sensor that detects and outputs a change in the light transmittance of a rinsing liquid. In this rinsing device, when water is supplied to the washing tub for rinsing, the optical sensor (rinsing sensor) section is surrounded by clear water, so the output ■ of the optical sensor is the maximum value, that is, the reference value ■. is set to

When the water is supplied to the specified water level in the washing tub and the water supply is agitated, the washing liquid contained in the laundry is dissolved, and the rinse liquid gradually becomes cloudy, becomes saturated at a certain point, and then becomes cloudy. gradually fades away. In other words, the output V of the optical sensor changes from a decrease to a minimum point to an increase. If you continue rinsing with water, the initial optical sensor output ■ will reach the reference value ■, as shown by curve (A) in Figure 1. It's getting closer and closer. At this time, the output V is the reference value ■. If this happens, rinsing is complete, but it is an over-rinsing and a waste of time and energy (water, electricity) that is not really necessary.

Next, some machines carry out rinsing by controlling the time according to the amount of laundry, but this also wastes time and energy and may result in insufficient rinsing.

<Purpose> In view of the above-mentioned points, the present invention provides a washing machine rinsing device that can save time and energy (water, electricity) by determining rinsing to be completed when rinsing has progressed to a level that poses no practical problems. The purpose is

<Example> Embodiments of the present invention will be described below with reference to the drawings.

First, in Fig. 4, 1 is the outer frame of the washing machine, 2 is the washing tub,
3 is a dehydration tank, 4 is a synthetic resin base, 5 is a dehydration basket, 6 is a motor for driving the dehydration basket, 7 is a motor for driving a pulsator, 8 is a processing panel section, and 9 is an electromagnetic type connected to a water faucet. Water supply valve, 10 is fan pulley, 11 is belt, 12 is pulsator pulley, 13 is pulsator, 14 is over 70-
A filter, 15 is an over-70 hose for rinsing water supply, 16 is a drain hose, 17 is a light sensor (rinsing sensor), 18 is a circulation passage for determining rinsing liquid, and a light sensor 17 is installed at the bottom thereof.

Figure 2 shows the optical sensor 17 and automatic control device ft? It is a relationship diagram with c. The optical sensor 17 includes a light emitting section (light emitting diode) 1
7a and a light receiving section (phototransistor) 17b,
It is installed at the lower part of the passage 18, and detects the light transmittance of the rinsing liquid in this part, and performs arithmetic processing with an automatic control device C consisting of a microcomputer to determine the degree of rinsing progress.

FIG. 3 is a 70-chart for rinsing determination by the automatic control device C. In addition, FIG. 1 shows the degree of rinsing by the optical sensor 17.
It is a diagram showing the relationship between the output \I and time. This first
, 3, when water is supplied to the washing tub for rinsing, the optical sensor part is surrounded by clear water, so the optical sensor 1
7's output ■ reaches the maximum value, that is, the reference value \Io. -3 = When the water is supplied to a predetermined water level in the washing tub and water supply agitation starts, the washing liquid contained in the laundry begins to dissolve, and the rinsing liquid gradually becomes cloudy until it becomes saturated at a certain point. Then, the turbidity gradually fades, that is, the output V of the optical sensor 17
changes from a decrease to a minimum point to an increase.

Now, the 17 output V of the optical sensor during water supply operation is set as the reference value V.

Binding, initial reference value V. The difference between the output (2) of the optical sensor 17 and the output (2) of the optical sensor 17, which is considered to indicate that rinsing has been substantially completed, is defined as a rinse completion value (2). The water supply stirring operation starts and the automatic side mma
c, the output V of the optical sensor 17 and the reference value ■. Which difference V
x is determined at regular intervals, and first, when the difference reaches a predetermined water supply stop value ■1 (however, it is set as V < V2), the water supply is stopped and the non-water stirring operation is stopped for a predetermined short time. Drive for an hour, measure the output ■ of the optical sensor 17 at that time, and find the reference value ■. What difference Vx is determined at regular intervals, and if x ≦ 2 as shown in curve (a) in Fig. 1, rinsing is completed, and as shown in curve (a) in Fig. 1, V x > V 2
If so, it is determined that rinsing is insufficient, and the water supply agitation operation is resumed.
4. Rinse once and repeat the above calculation until Vx≦\12.

That is, in the present invention, water is supplied to the washing tub 2 by opening the electromagnetic water supply valve 9 while the pulsator 13 is stopped, and
It has a rinsing step consisting of a water supply agitation operation of rotating the pulsator 13 while supplying water to the washing tub 2 to agitate the rinse.
Rinse liquid light 3! ! In a washing machine rinsing device equipped with an optical sensor 17 that detects and outputs a change in L pass rate,
After the stirring operation, a non-water stirring operation is added to the rinsing process in which the pulsator 13 is rotated for a short time while the water supply valve 9 is closed and the water supply is stopped, and the output ■ of the optical sensor 17 during the water supply operation is set to a reference value. ■. Binding reference value V.

When the difference between the output value \lo of the optical sensor 17 during the water supply stirring operation and the output value 1 of the optical sensor 17 during the water supply stirring operation reaches a predetermined water supply stop value Vl, the operation is switched to the non-supply water stirring operation. An automatic control device (microcomputer) C is provided which has a function of completing the rinsing process when the difference between the output 17 and the output 2 reaches a rinsing completion value 2.

1, in the present invention, the rinsing criteria are input in advance to the automatic control device C, the light transmittance is detected by the optical sensor 17, and the degree of rinsing is automatically determined.

<Effects> As is clear from the above description, the present invention has a rinsing process consisting of a water supply operation for supplying water to the washing tub and a water supply agitation operation for rinsing and agitating water while supplying water to the washing tub, and the rinsing degree of the rinsing liquid is controlled. Rinse sensor (light sensor 17 in the example) that detects and outputs a change in (light transmittance in the example)
), in which a non-water agitation operation is added to the rinsing process in which stirring is performed with the water supply stopped after the water supply agitation operation, and the output of the rinse sensor during the water supply operation is set to a reference value. Then, when the difference between the reference value and the output of the rinse sensor during the water supply stirring operation reaches a predetermined water supply stop value, the operation is switched to the non-supply water stirring operation, and then the reference value and the output of the rinse sensor during the non-supply water stirring operation are determined. This invention relates to a rinsing device characterized by being provided with an automatic control device having a function of completing the rinsing step when the difference between the rinsing completion value and the rinsing completion value is reached.

Therefore, according to the present invention, by appropriately setting the rinsing completion value and determining rinsing to be complete when rinsing has progressed to a point where there is no practical problem, there is an excellent effect of saving time and energy (water, electricity). .

[Brief explanation of drawings]

Fig. 1 is a diagram showing the degree of rinsing in the embodiment of the washing machine rinsing device of the present invention in relation to the output of the optical sensor and time, Fig. 2 is a block diagram of the rinsing device H, and Fig. 3 is the same. 70-chart of the automatic control device of the rinsing device, FIG. 4 is an overall cross-sectional view of the same washing rack. 2: Washing tub, 9: Electromagnetic water supply valve, 13: Pulsator, 17
: optical sensor, V: output of optical sensor, Vo: its reference value,
\11: Water supply stop value, v2: Completion value, C: Automatic control Hf
? (microcomputer).

Claims (1)

[Claims] A washing machine that has a rinsing process consisting of a water supply operation that supplies water to the washing tub, and a water supply agitation operation that rinses and stirs water while supplying water to the washing tub, and is equipped with a rinsing sensor that detects and outputs changes in the degree of rinsing of the rinsing liquid. In the rinsing device of the machine, a non-supplied water agitation operation is added to the rinsing process in which stirring is performed with the water supply stopped after the water supply agitation operation, and the output of the rinse sensor during the water supply operation is set as a reference value, and the reference value and the When the difference between the output of the rinse sensor during the water supply agitation operation reaches a predetermined water supply stop value, the operation switches to the non-supply water agitation operation, and then the difference between the reference value and the output of the rinse sensor during the non-supply water agitation operation indicates that rinsing is complete. A rinsing device, characterized in that it is provided with an automatic control device having the function of completing the rinsing process when a value is reached.