JPS6187594A - 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 Field The present invention relates to a washing machine rinsing device that repeats a dehydration and rinsing cycle several times.

<Prior Art> The dewatering and rinsing process is completed by putting the washed laundry into a dehydrating basket, repeating the cycle of dehydration, water utilization, and water supply several times, and then performing the final dehydration.

However, in the past, the laundry was dehydrated by setting the time for each operation as shown in Figure 7, based on the maximum weight of the laundry, and driving the motor to continuously rotate the dehydration basket. The dehydration rinsing cycle is repeated several times, consisting of a dehydration operation, a braking operation in which the rotation of the dehydration basket is stopped using a brake, and a water supply operation in which the water supply valve is opened to supply water to the inside of the 11L water basket. After that, the final dehydration operation was performed. However, since this set time is based on the maximum weight of the laundry, this means that as the weight of the laundry decreases, time, water, and electricity are wasted.

<I''> The present invention aims to provide a rinsing device that can save time, water, and electricity as the weight of the laundry decreases.

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

First, let us explain the structure of a two-tub washing machine in Figure 2.
1 is a washing machine outer frame, 2 is a washing tub, 3 is a dehydration tank, 4 is a synthetic resin bottom stand, and 5 is a dehydration basket, which are provided in the dehydration tank 3. 6 is a motor for driving the dehydration basket, 6a is an electromagnetic brake for stopping the rotating shaft, 7 is a motor for driving a pulsator, 8
is the operation panel part, 9 is the electromagnetic water supply valve connected to the water faucet, 1o is the fan pulley, 11 is the V-belt, 12 is the pulsator pulley, 13 is the pulsator at the bottom of the washing tub, 14 is the overflow filter, 15 is the water supply rinse 16 is a tough water hose; 17 is a dehydration sensor; water droplets continuously fly out and collide with this during dehydration, so the dehydration sensor 17 generates a voltage exceeding a certain level; After this state, the amount of dehydration decreases rapidly, the output voltage drops below a certain level, and the first dehydration time is detected. Reference numeral 19 denotes a water supply channel on the dewatering side, which connects the water supply valve and the rinse water supply port 19a.

In the present invention, as shown in the time chart of FIG. 1 and the block diagram of FIG. After repeating the dehydration rinsing cycle several times, which consists of a braking operation to brake the rotation of the dehydration basket 5 to stop it, and a water supply operation to open the water supply valve 9 and supply water to the inside of the dehydration basket 5, final dehydration is carried out. The rinsing device that operates is provided with a dehydration sensor 17 that detects a sudden decrease in the amount of water droplets scattered from the laundry in the dehydration basket 5 during the dehydration operation. When the first spin-drying time corresponding to the weight of the laundry is determined, the first spin-drying time is compared with a pre-stored reference time to determine the weight of the laundry. It has a function that determines whether the laundry is medium-weight or lightweight, calculates the braking time and water supply time corresponding to the weight of the washbasin, and automatically repeats each of the above operations several times for each of these times. A microcomputer automatic control device MC is provided.

In other words, as shown in Fig. 1, if the load (the weight of the laundry) becomes lighter, the weight of the laundry to be dehydrated is smaller, so the dehydration time will be shorter than n1ll, and the inertia will be smaller, so the braking time of the dehydration basket 5 (time to stop) will be shorter. ) will be shorter. Also, the weight of water supply is reduced (water supply time is shortened).

Figure 4 shows the relationship between the dewatering rate of the laundry and the rotational speed of the dehydrating basket 5. During the transition period (at the time of start-up), the dehydrating rate is determined by the rotational speed of the dehydrating basket 5, almost regardless of the weight of the laundry. There is.

Figure 5 shows the relationship between the rotational speed of the dehydrating basket 5 and time depending on the load weight (weight of laundry) of the dehydrating basket 5. As the load increases, that is, as the load increases from no load to A4. The rotation speed is gentle and the steady rotation speed (180
It takes more time to reach a rotational speed close to 0r, pom. Further, FIG. 6 shows the relationship between the dehydration rate and time depending on the load weight, and as the load increases from A1 to A4, the time to reach a certain dehydration rate increases.

The automatic control device C of the present invention is designed based on the data shown in FIGS. 4, 5, and 6. That is, the dewatering time at the initial stage of dewatering and rinsing (the state in which the laundry is transferred from the washing tub to the dehydrating basket 5), that is, the time of the first dewatering, is measured by II of the dewatering sensor 17, which detects whether or not water is completed.

In this way, Figure 5 shows that there is a difference in time to obtain almost the same dehydration rate depending on the weight of the laundry.Conversely, by detecting the first dehydration time, it is possible to You can know the weight of The present invention takes advantage of this to improve the conventional drawback of the dehydration and rinsing process, in which the time for each operation is set regardless of the weight of the laundry. The automatic control device C can select an optimal predetermined time for efficient dehydration and rinsing.

Note that the characteristics shown in FIGS. 4, 5, and 6 vary depending on the performance of the dehydrator (dehydration motor, size of dehydration basket 5).

Further, the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

<Effects> As is clear from the above description, the present invention provides a dewatering operation in which laundry is dehydrated by continuously rotating a dehydrating basket, a braking operation in which the rotation of the dehydrating basket is braked to stop the rotation, and the dewatering In a washing machine rinsing device that repeats a dehydration rinse cycle consisting of each water supply operation to supply water to the inside of a basket several times, a state is detected in which the amount of water droplets scattered from the laundry in the dehydration basket rapidly decreases during the dehydration operation. A dehydration sensor is provided to determine the first dehydration time corresponding to the weight of the laundry based on the output of the dehydration sensor, and determine a braking time corresponding to the weight of the laundry in approximately proportion to the first dehydration time. The present invention relates to a rinsing device characterized in that it is equipped with an automatic control device having a function of determining the water supply time and automatically repeating each of the above operations several times for each of these times.

Therefore, according to the present invention, the smaller the weight of the washed items, the more time, water, and electricity can be saved, which is an excellent effect.

17 =

[Brief explanation of drawings]

Is the drawing based on the invention? Fig. 1 shows a time chart of each operation of the rinsing process of the rinsing device, and Fig. 2 shows a cross-sectional view of the overall washing ratio.
Fig. 3 is a block circuit diagram of the rinsing device, Fig. 4 is a diagram showing the relationship between the dehydration rate and rotation speed of the dehydration basket, and Fig. 5 is a diagram showing the relationship between the rotation speed and time of the dehydration basket. FIG. 6 is a diagram showing the relationship between the dehydration rate and time of the dehydration basket, and FIG. 7 is a time chart of each operation in the conventional dehydration and rinsing process. C: automatic control device, 5: dehydration basket, 6: motor, 6a brake, 9: water supply valve, 17: dehydration sensor.

Claims (1)

[Claims] A dehydration rinse cycle consisting of a dehydration operation in which laundry is dehydrated by continuously rotating a dehydration basket, a braking operation in which the rotation of the dehydration basket is braked to stop it, and a water supply operation in which water is supplied to the inside of the dehydration basket. In a washing machine rinsing device that repeats several times, a dehydration sensor is provided to detect a sudden decrease in the amount of water droplets scattered from the laundry in the dehydration basket during the dehydration operation, and the washing process is performed based on the output of the dehydration sensor. The first spin-drying time corresponding to the weight of the laundry is determined, and the braking time and water supply time corresponding to the weight of the laundry are determined in approximately proportion to the first spin-drying time, and the above-mentioned operations are automatically performed for each of these times. A rinsing device characterized in that it is equipped with an automatic control device having a function of repeating the process several times.