JPH0810497A - Washing machine - Google Patents

Abstract

PURPOSE:To sufficiently rinse an article to be washed by dehydration rinsing operation regardless of the kind of a detergent used in washing operation while conserving water. CONSTITUTION:The kind of a detergent used in washing operation is preliminarily inputted by a switch input part 34. A microcomputer 36 alters the timing opening a water supply valve 22 corresponding to the kind of the detergent inputted by the switch input part 34 when dehydration rinsing operation is executed in succession to washing operation. By this constitution, the total supply amt. of water due to the water supply valve 22 at the time of water injection and dehydration rinsing operation is adjusted. In this case, the total supply amt. of water due to the water supply valve 22 is set so as to become little with respect to a detergent good in defoaming properties.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for performing a dehydration rinse operation while supplying water to a rotary tub for storing laundry.

[0002]

2. Description of the Related Art Conventionally, in a washing machine, when a rinsing operation is performed, the laundry is stored in a rotary tub in which the laundry is stored, or while the water is being stored in the rotary tub, the laundry is supplied by a pulsator or an agitator. The laundry is rinsed by stirring. In this case, the time or number of times of rinsing operation is changed according to the amount of laundry stored in the rotary tub or the turbidity of water in the rotary tub.

By the way, in recent years, there has been provided a washing machine for performing a so-called dehydration rinse operation in which laundry is rinsed while supplying water while the rotary tub is rotated. According to such a washing machine, the washing water soaked in the laundry can be quickly discharged by the washing operation, so that the rinsing time can be shortened. In this case, the execution time of such a dehydration rinsing operation is set to a time at which the laundry can be sufficiently rinsed by the dehydration rinsing operation even when the soap powder with the worst foam breakage is used in the washing operation.

[0004]

However, in the above-mentioned conventional example, since the execution time of the dehydration rinsing operation is set to a fixed time regardless of the type of detergent used in the washing operation, the defoaming of the washing operation is performed. When using a good liquid detergent, the water supply state will continue even though the laundry has been thoroughly rinsed during the dehydration rinsing operation, resulting in wasteful water supply. .

In this case, it is conceivable that the turbidity of the water discharged during the dehydration rinse operation is detected and the dehydration rinse operation is ended when the turbidity is sufficiently reduced. Since the amount of water is small, it is the actual situation that it is difficult to detect the turbidity, unlike the configuration in which the turbidity of the water stored in the tank is detected as in the pool rinsing operation.

The present invention has been made in view of the above circumstances, and an object thereof is to perform dehydration and rinse operation while supplying water to a rotary tank, in accordance with the type of detergent or soap used in the cleaning operation. It is an object of the present invention to provide a washing machine capable of appropriately adjusting the total amount of water supplied during a rinse operation.

[0007]

DISCLOSURE OF THE INVENTION The present invention provides a rotary tub for storing laundry, a water supply means for supplying water to the rotary tub, and a spin rinsing operation by rotating the rotary tub in a water supply state by the water supply means. In a washing machine having a control means for executing the above, a detergent type input means for inputting the type of detergent or soap used in the washing operation is provided, and then the control means is controlled by the detergent type input means. By changing the water supply state of the water supply means according to the type of detergent or soap input, it is possible to adjust the total amount of water supplied by the water supply means during execution of the dehydration rinse operation.

In the above structure, the control means may be arranged to change the water supply state of the water supply means by intermittently driving the water supply means.

Further, the water supply means may be configured to be variable in water supply flow rate, and the control means may be configured to change the water supply state of the water supply means by changing the water supply flow rate of the water supply means.

Further, the control means is configured to continuously drive the water supply means and change the water supply state of the water supply means by terminating the dehydration rinsing operation when the total amount of water supply by the water supply means reaches the set amount. May be.

Further, when the detergent or soap inputted by the detergent type input means is a specific one, the control means is a sump rinse for driving the water supply means in a state where water is stored in the rotary tank following the dehydration rinse operation. It may be configured to execute the operation.

Further, a laundry amount detecting means for detecting the weight of the laundry stored in the rotary tub is provided, and when the dehydrating and rinsing operation is executed by the control means, the detergent or soap input by the detergent type input means is used. The water supply state of the water supply means may be changed on the basis of the type and the value detected by the laundry amount detection means.

[0013]

In the washing machine according to the first aspect of the present invention, the control means rotates the rotary tub while the water is being supplied by the water supply means when performing the dehydration rinse operation. As a result, the laundry stored in the rotary tub is supplied with water and dehydrated at the same time, so that the washing water soaked in the laundry by the washing operation can be rapidly dehydrated.

Here, if the type of detergent or soap used in the washing operation is input by the detergent type input means, the control means inputs it by the detergent type input means when executing the dehydration rinse operation. By adjusting the water supply state of the water supply means according to the type of detergent or soap, the total amount of water supplied by the water supply means at the time of executing the dehydration rinse operation is adjusted. As a result, the total amount of water supplied during the rinsing operation is adjusted appropriately according to the type of detergent or soap used in the washing operation, so while washing the laundry thoroughly regardless of the type of detergent used in the washing operation. You can save water.

In the washing machine according to the second aspect of the present invention, the control means intermittently drives the water supply means when performing the dehydration rinse operation. As a result, the water supply state of the water supply means during the dehydration rinse operation can be changed.

In the washing machine according to the third aspect, the control means adjusts the water supply flow rate of the water supply means when the dehydration rinse operation is executed. As a result, the water supply state of the water supply means during the dehydration rinse operation can be changed.

In the washing machine according to the fourth aspect, the control means continuously drives the water supply means when executing the dehydration rinse operation and performs the dehydration rinse operation when the total amount of water supplied by the water supply means reaches the set amount. finish. This allows
It is possible to change the water supply state of the water supply means during the dehydration rinsing operation, and it is possible to shorten the execution time of the dehydration rinsing operation.

In the washing machine according to the present invention, the control means stores the water in the rotary tub following the dehydration rinsing operation when the detergent or soap input by the detergent type input means is specific. The stored water rinse operation for driving the water supply means is executed. As a result, the laundry can be sufficiently rinsed even if a detergent or soap having poor foam breakage is used in the washing operation.

In the washing machine according to the sixth aspect, the control means detects the amount of laundry stored in the rotary tub by the laundry amount detection means when performing the dehydration rinsing operation. Then, the control means changes the water supply state of the water supply means based on the type of detergent or soap input by the detergent type input means and the detection value by the laundry amount detection means. Thereby, the laundry can be sufficiently rinsed regardless of the amount of the laundry.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 2 shows a vertical section of the washing machine. In FIG. 2, a plurality of suspension mechanisms 2 are provided in the outer box 1.
A trough 3 elastically supported by is provided. A motor 4 and a transmission mechanism 5 are attached below the trough 3, and the rotational force of the motor 4 is transmitted to the transmission mechanism 5 through a pulley 6. This transmission mechanism 5 has a first shaft 5a.
And a cylindrical second shaft 5b surrounding the first shaft 5a.
And transmits the rotational force of the motor 4 to the first and second shafts 5a and 5b. In this case, the transmission mechanism 5 is controlled to be switched between the washing mode and the dehydration mode by the transmission mechanism switching device 7. In the washing mode, the rotational force of the motor 4 is decelerated and transmitted to the first shaft 5a. The rotation speed of the motor 4 is lowered by the first and second shafts 5a and 5b in the dehydration mode.
It is designed to rotate at high speed by directly transmitting to.

A pulsator 8 is fixed to the first shaft 5a of the transmission mechanism 5. Further, a dewatering tank 9 as a rotating tank is provided in the trough 3, and the bottom surface of the rotating tank 9 is fixed to the second shaft 5b via a mounting member 10.
Therefore, the pulsator 8 rotates at a low speed when the transmission mechanism 5 is switched to the washing mode, and the pulsator 8 and the rotary tub 9 rotate at a high speed when the transmission mechanism 5 is switched to the dehydration mode. The side wall of the rotary tank 9 is formed in a tapered shape whose diameter becomes larger toward the upper part, and a plurality of holes 11 are formed in the uppermost part of the side wall. A balance ring 12 is attached to the upper part of the rotary tank 9. An inner basket 13 is fixed in the rotary tank 9. The inner basket 13 is made of stainless steel and has a large number of holes (not shown) formed in its side wall.

A trough 3 is provided around the second shaft 5b of the transmission mechanism 5.
A drainage space 14 is formed that is watertightly separated from the bottom surface. The drainage space 14 communicates with the inside of the rotary tank 9 through the hole 10a formed in the mounting member 10 and the hole 9a formed in the bottom surface of the rotary tank 9, and also with the drainage port 15. The drain port 15 is connected to a drain hose 17 via a drain valve 16. An air trap 18 is formed in communication with the drain port 15, and the air trap 1
A water level sensor 19 (see FIG. 1) for detecting the water level in the rotary tank 9 in accordance with the air pressure of 8 is provided. A drainage port 20 is formed on the bottom surface of the trough 3, and the drainage port 20
Is directly communicated with the drain hose 17 without going through the drain valve 16. With the above configuration, when water is supplied to the rotary tub 9 with the drain valve 16 closed, water can be stored in the rotary tub 9 and stored in the rotary tub 9 by opening the drain valve 16. The water that has been drained can be drained to the drain hose 17 through the drain port 15. Further, the water drained into the tub 3 can be directly drained to the drain hose 17 through the drain port 20.

On the other hand, a water injection case 21 is provided above the rotary tank 9 so as to face the inside of the rotary tank 9, and a water supply valve 22 for injecting water into the water injection case 21 is provided. An operation panel 23 is provided on the upper surface of the outer box 1. The upper surface of the outer box 1 is closed by the lid 24.

FIG. 3 shows the water supply valve 22. In FIG. 3, the body 25 has a water inlet 26 and a water outlet 27.
A valve port 28 is formed in a flow path communicating with the valve, and a diaphragm 29 is arranged corresponding to the valve port 28. The diaphragm 29 closes the valve port 28 while being pressed by the plunger 31 urged by the compression coil spring 30, and the plunger 31 resists the urging force of the compression coil spring 30 in response to the energization of the solenoid 32. Then, the valve opening 28 is opened by being sucked by the coil 33. The water inlet 26 is connected to a faucet, and the water outlet 27 is connected to the water supply case 21. Therefore, water can be injected into the rotary tank 9 through the water injection case 21 in response to the energization of the solenoid 32.

FIG. 4 shows the operation panel 23.
In FIG. 4, the operation panel 23 is provided with a switch input section 34 and a display section 35. That is, as the switch input unit 34, the start button 34a, the washing course setting button 34b, the washing time setting button 34c, the rinse number setting button 34d, the dehydration time setting button 34e,
A water level setting button 34f and a detergent type input button 34g as a detergent type input means are provided. Further, the display unit 35 is configured to display the operation content for each button. In this case, the detergent type input button 34g is operated to input the type of detergent used in the washing operation, and the synthetic detergent display portion 35a, the liquid detergent display portion 35b, and the powder soap display portion 35c are input according to the operation.
Lights up sequentially. Further, the detergent amount display portion 35d is configured to display the amount of detergent used in the washing operation by the number of lit blocks. Further, a cap display portion 35e and a cup display portion 35f are provided adjacent to the detergent amount display portion 35d, and the detergent amount display portion 35 is turned on by turning on either of them.
Display the weighing container indicated by d.

FIG. 1 schematically shows the electrical configuration.
In FIG. 1, when the microcomputer 36 as the control means determines that the start button 34a is operated in response to the operation signal from the switch input section 34, the drive circuit 37 is operated according to the operating condition set at that time. To control each device through.

Next, the operation of the above configuration will be described. First, the laundry course and the water level are set by operating the various buttons of the switch input unit 34 provided on the operation panel 23, and the type of detergent used in the washing operation is set by the detergent type input button 34g. That is, for example, when using a synthetic detergent in the washing operation, the detergent type input button 34g is operated to turn on the synthetic detergent display portion 35a. Then, the microcomputer 3
6 determines the amount of detergent required for the washing operation based on the water level set by the water level button 34f and the detergent set by the detergent type input button 34g, and displays the detergent amount in the detergent amount display portion 35d, Cap display section 35
e or the cup display portion 35f is turned on to display the measuring container indicated by the detergent amount display portion 35d. In this case, since the synthetic detergent is selected, the cup display portion 35f lights up.

Now, after the amount of the synthetic detergent indicated by the detergent amount display portion 35d is put into the water injection case 21, the start button 34a is operated. Then, the microcomputer 36
Opens the water supply valve 22 by executing the water supply stroke in the washing course shown in FIG. As a result, shower water is injected into the rotary tank 9 through the water injection case 21, and the synthetic detergent stored in the water injection case 21 is supplied into the rotary tank 9 in a state of being dissolved in water. At this time, since the drain valve 16 is closed, the water level in the rotary tank 9 gradually rises.

Then, the microcomputer 36 executes the washing process by rotating the pulsator 8 in the normal and reverse directions when the water level in the rotary tank 9 reaches the set water level, and drains the water when the washing process for a predetermined time is completed. Valve 16
The drainage process is performed by opening the. As a result, the washing water in the rotary tub 9 is drained. Subsequently, the spin tub 9 is rotated with the drain valve 16 opened to perform the dehydration process, so that the wash water soaked in the laundry is rapidly drained to the outside of the rotary tub 9.

The microcomputer 36, which has executed the washing operation as described above, executes the dehydration rinsing operation. That is, by intermittently driving the motor 4, the rotary tank 9 is maintained at a low speed of approximately 300 rpm for 30 seconds, and the water supply valve 22 is opened to perform the shower water injection dehydration rinse step of supplying water into the rotary tank 9. . As a result, since the laundry stored in the rotating tub 9 is water-rotated by shower, the washing water is drained from the laundry, and at the same time, the water is soaked in the laundry and the laundry is rinsed. Be promoted.

Here, the microcomputer 36 controls the time for which the water supply valve 22 is opened in accordance with the type of detergent or soap input by the detergent type input button 34g when executing the above-mentioned shower water pouring / dehydrating rinsing process. By doing so, the water supply status is changed. That is, when the synthetic detergent is selected, as shown in FIG. 6, the operation of driving the water supply valve 22 every 15 seconds for 10 seconds is repeated twice, and then the dehydration step is executed. As a result, the laundry stored in the rotating tub 9 rotating at a low speed is intermittently shower-poured from the water injection case 21.
In this case, since the water supply amount of the water supply valve 22 is set to 20 liters / minute, the total water supply amount by the water supply valve 22 per cycle is 20 × 20/60 = 6.7 liters.

Then, the microcomputer 36 continues the dehydration operation after repeating the above-mentioned shower water injection dehydration rinse process twice. As a result, the wash water soaked in the laundry stored in the rotary tub 9 is drained.

Further, when the liquid detergent is selected by the detergent type input button 34g, the microcomputer 36 sets the water supply valve 22 every 15 seconds as shown in FIG. 6 when executing the shower water injection dehydration rinse. The operation of driving for 8 seconds is repeated twice. In this case, the total amount of water supply by the water supply valve 22 per cycle is 20 × 16/60 =
It will be 5.3 liters.

According to the above control, the total amount of water supplied by the water supply valve 22 in the shower water pouring / dehydrating rinsing process becomes larger when the synthetic detergent is selected than when the liquid detergent is selected. This is because the detergent defoaming in the dehydration rinse operation is worse when the synthetic detergent is used than when the liquid detergent is used in the washing operation.Therefore, the total amount of water supplied in the shower water injection dehydration rinse step is increased accordingly. This is because a large setting stabilizes the rinsing effect in the dehydration rinsing operation regardless of the type of detergent used in the washing operation.

By the way, the microcomputer 36 is
The timing for driving the water supply valve 22 for the second time in the shower water pouring / dehydration rinsing process of the dehydration rinsing operation by selecting the synthetic detergent or the liquid detergent is such that the rotation tank 9 is inertially rotated by stopping the drive to the motor 4. It is set when the rotation speed drops. This is because when the rotating speed of the laundry is high when pouring the shower water into the rotating laundry, the shower-injected water is splashed by the laundry, so the timing of shower water injection should be It is set at the timing when the rotation speed of is slowed down so that water can easily soak into the laundry. Therefore, the rinsing effect by the dehydration rinsing operation can be more exerted as compared with the configuration in which the shower water is continuously supplied by the same amount in the shower water pouring and dehydrating rinsing process.

When powder soap is selected by the detergent type input button 34g, the microcomputer 36
As shown in FIG. 7, after performing the shower water injection dehydration rinse process twice in the dehydration rinse operation, the accumulated rinse operation is executed. In the washing operation using the powdered soap, this pool rinsing operation is performed to remove soap dregs formed of a metal component and adhere to the laundry.

Here, in the shower water pouring dehydration rinsing process of the dehydration rinsing operation when powder soap is selected, water is continuously supplied from the water supply valve 22 as shown in FIG. In this case, the total amount of water supplied by the water supply valve 22 per cycle is 20 × 30/60 = 10 liters.

As a result of the above control operation, the total amount of water supplied to the rotary tank 9 by shower during the dehydration rinsing operation is 20 liters when powder soap is selected and 13.3 liters when synthetic detergent is selected. When the liquid detergent is selected, it becomes 10.6 liters.

Here, FIG. 8 shows changes in the rinsing degree when the synthetic detergent and the powdered soap are used in the washing operation. In FIG. 8, when the synthetic detergent is used in the washing operation, the rinsing degree becomes high in a short time, whereas when the powder soap is used, it takes time to increase the rinsing degree. This means that it is necessary to set the total amount of water supply during the dehydration rinse operation to be larger when powder soap is used in the washing operation than when synthetic detergent is used.

FIG. 9 shows the relationship between the amount of water supplied by shower water injection and the degree of rinsing when powder soap is used in the washing operation. In FIG. 9, it can be seen that the rinsing degree becomes saturated when the water supply amount reaches a predetermined amount (20 liters in this case). This means that even if the shower water injection dehydration rinsing process is performed for a long time, the rinsing effect is significantly reduced.

Therefore, as described above, by appropriately setting the total amount of water supplied in the shower water pouring / dehydrating / rinsing process according to the type of detergent used in the washing operation, the shower pouring can be performed while reliably rinsing the laundry by the dehydration / rinsing operation. It is possible to prevent the user from going to waste.

According to the above configuration, the microcomputer 36 is adapted to adjust the total amount of water supplied during the dehydration rinsing operation in accordance with the detergent type selected by the detergent type input button 34g. Regardless of the type of detergent used, laundry can be thoroughly rinsed by the dehydration rinsing operation. Therefore, unlike the conventional example in which the total amount of water supplied during the spin-drying rinse operation is constant regardless of the type of detergent, it is possible to prevent water from being rinsed wastefully while rinsing it reliably.

When powder soap is used in the washing operation, the pool rinse is performed after the dehydration rinse operation. Even if is attached to the laundry, the soap residue can be reliably removed from the laundry.

A second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the total amount of water supply in the shower water pouring / dehydrating rinsing process is adjusted not by the water supply time but by the water supply flow rate.

10 and 11 show a water supply valve.
10 and 11, the body 39 of the water supply valve 38 is provided with a water supply passage extending from the water inlet 40 to the water outlet 41. Here, an impeller 42 is provided corresponding to the water inlet 40, and the impeller 42 rotates according to the amount of water that has passed through the water inlet 40. A permanent magnet 44 is attached to the shaft 43 of the impeller 42, and a Hall element 45 for detecting a magnetic field from the permanent magnet 44 is arranged. Therefore, the water supply amount of the water supply valve 38 can be detected based on the detection state of the hall element 45.

A valve body 46 is provided corresponding to the water outlet 41, and the valve body 46 closes the water outlet 41. An opening 46 a is formed in the middle of the valve body 46, and the opening 46 a is formed in accordance with the rotational position of the valve body 46.
When a faces the water outlet 41, the water outlet 41 is opened and the opening area thereof is adjusted.
The valve body 46 is rotated by a motor 47 via a shaft 48. Therefore, by energizing the motor 47 and controlling the position of the valve body 46, the total water supply amount of the water supply valve 38 can be adjusted.

The water inlet 40 of the water supply valve 38 is connected to the faucet of the water supply, and the water outlet 41 is connected to the water injection case 21. Therefore, the total amount of water supplied by the water supply valve 38 can be arbitrarily adjusted by detecting the rotation speed of the impeller 42 based on the detected state of the hall element 45.

Now, when executing the dehydration rinsing operation, the microcomputer 36 changes the water supply flow rate of the water supply valve 38 having the above-mentioned configuration to the detergent type input button 34 as shown in FIG.
Adjustment is made according to the type of detergent selected in g. That is, when the powdered soap is selected, the water supply flow rate of the water supply valve 38 is adjusted to 20 liters / minute. In this case, the total amount of water supplied by the water supply valve 38 per cycle is 2
It becomes 0 × 30/60 = 10 liters. When the synthetic detergent is selected, the water supply flow rate of the water supply valve 38 is set to 14
Adjust to liters / minute. In this case, the total amount of water supplied by the water supply valve 38 per cycle is 14 × 30/60 = 7 liters. When liquid detergent is selected,
The water supply amount of the water supply valve 38 is adjusted to 10 liters / minute. In this case, the total amount of water supplied by the water supply valve 38 per cycle is 10 × 30/60 = 5 liters.

According to the second embodiment, the total water supply amount by the water supply valve 38 is adjusted by adjusting the water supply flow rate by the water supply valve 38 during the dehydration rinsing process according to the type of detergent. As in the case of the embodiment, it is possible to prevent unnecessary water supply while rinsing the laundry reliably and save water.

Further, since the water supply valve 38 is not completely closed, unlike the structure using the water supply valve 22 as in the first embodiment, generation of noise due to the water hammer phenomenon is prevented. be able to.

A third embodiment of the present invention will be described with reference to FIG. In the third embodiment, the water supply valve 22 having the same structure as in the first embodiment is used, and the water supply amount is set to 20 liters / minute. In this case, the microcomputer 36 continuously drives the water supply valve 22 until the total amount of water supply for one cycle in the first embodiment is reached when executing the shower water injection dehydration rinse process of the dehydration rinse operation, and the shower water injection dehydration is performed. The dehydration process is executed immediately after the end of the rinsing process.

According to the third embodiment, it is possible to adjust the total amount of water supplied during the dewatering and rinsing operation according to the type of detergent. It is possible to save water by preventing wasteful water supply. Moreover, since the execution time of the shower water injection dehydration rinse process of the dehydration rinse operation can be shortened, the washing time can be shortened.

A fourth embodiment of the present invention will be described with reference to FIGS. 14 to 16. FIG. 14 schematically shows an electrical configuration. The same parts as those in the first embodiment are designated by the same reference numerals, the description thereof will be omitted, and different parts will be described. In FIG. 14, the motor 4 is provided with a rotation sensor 49 as a laundry amount detecting means, and the microcomputer 36 detects a signal from the rotation sensor 49.

FIG. 15 shows the operation of the microcomputer 36. In FIG. 15, the microcomputer 36 sets the auto course when the power is turned on (step S1), and stores the detergent type when the detergent type input button 34g is operated (step S2) (step S1). S3). When the start button 34a is operated (step S4) and no other course is set, the microcomputer 36 executes the water supply process (step S5) and the water level in the rotary tank 9 is small. When the water level is reached (step S6), the rotary tub 9 is rotated at a low speed, and the amount of laundry is detected based on the signal from the rotation sensor 49 in that rotational state (step S7).
That is, when the rotary tank 9 is rotated with a small amount of water stored,
When the amount of laundry stored in the rotating tub 9 is large, the rotation speed of the motor 4 is low, and when the amount of laundry is small, the motor 4 is rotated.
Since the rotation speed of is high, the laundry amount can be detected based on the signal from the rotation sensor 49.

Then, as shown in FIG. 16, the microcomputer 36 determines the total amount of water supply in the dehydration rinse operation based on the type of detergent and the weight of the laundry (step S8), and the amount of detergent required in the washing operation. Is displayed by the detergent amount display portion 35d of the operation panel 23. Therefore,
The user puts the amount of detergent indicated by the detergent amount display portion 35 into the water injection case 21.

When the start button 34a is operated again, the microcomputer 36 executes the water supply process (step S11), and when the water level in the rotary tub 9 reaches the water level set based on the amount of laundry. (Step S12), the washing operation and the rinsing operation are executed, and then the dehydration operation is executed. Here, the microcomputer 36
Controls the water supply valve 22 so that the total amount of water supply obtained based on FIG. 16 is obtained when the shower water pouring and dehydration rinsing process in the dehydration rinsing operation is executed.

According to the fourth embodiment, the total amount of water supply during the dewatering and rinsing operation is adjusted by the amount of laundry in addition to the detergent type, so that an appropriate total amount of water supply can be set regardless of the amount of laundry. Further saving water can be achieved.

The present invention is not limited to the above embodiments, but can be modified or expanded as follows. The washing machine may be a two-tub type. You may apply to the washing machine which can perform dehydration rinse operation independently.

[0059]

As is apparent from the above description, the washing machine of the present invention has the following effects. According to the first aspect of the present invention, the total amount of water supplied by the water supply means during execution of the dehydration rinse operation is adjusted by changing the water supply state of the water supply means according to the type of detergent used in the washing operation. Therefore, it is possible to save water while sufficiently rinsing the laundry regardless of the type of detergent used in the washing operation.

According to the second aspect of the present invention, the water supply means is intermittently driven during the dehydration rinsing operation.
By changing the water supply state of the water supply means during the dehydration rinsing operation, the total amount of water supply can be reliably adjusted by the water supply means.

According to the third aspect of the present invention, since the water supply flow rate of the water supply means is changed during the dehydration rinsing operation, the water supply state of the water supply means during the dehydration rinse operation is changed so that the total amount of water supplied by the water supply means. It can be adjusted reliably.

According to the fourth aspect of the present invention, the water supply means is continuously driven during the dehydration rinse operation, and the dehydration rinse operation is terminated when the total amount of water supplied by the water supply means reaches the set amount. The water supply state of the water supply means during the rinse operation can be changed to reliably adjust the total amount of water supply by the water supply means, and the execution time of the dehydration rinse operation can be shortened.

According to the fifth aspect, when the detergent or soap used in the washing operation is a specific one, the water supply means is driven in a state where water is stored in the rotary tank subsequent to the dehydration rinse operation. Since the pool rinsing operation is executed, the laundry can be sufficiently rinsed even when a detergent or soap having poor foaming is used in the washing operation.

According to the sixth aspect of the present invention, the water supply state of the water supply means is changed based on the type of detergent or soap used in the washing operation and the weight of the laundry, regardless of the amount of laundry. The laundry can be thoroughly rinsed.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an electrical configuration in a first embodiment of the present invention.

[Figure 2] Vertical side view of the washing machine

FIG. 3 is a vertical sectional view of a water supply valve.

FIG. 4 is a front view of an operation panel

FIG. 5 is a timing chart showing an automatic washing course when a powder detergent or a liquid detergent is washed.

FIG. 6 is a timing chart showing the dehydration rinsing operation in detail according to the type of detergent.

FIG. 7 is a view corresponding to FIG. 5 when the soap powder is washed.

FIG. 8 is a diagram showing a change in rinsing degree with execution of rinsing operation.

FIG. 9 is a diagram showing changes in the rinsing degree according to the water supply amount.

FIG. 10 is a vertical sectional front view showing a water supply valve according to a second embodiment of the present invention.

FIG. 11 is a vertical sectional side view of the water supply valve.

FIG. 12 is a view corresponding to FIG.

FIG. 13 is a view corresponding to FIG. 6 showing a third embodiment of the present invention.

FIG. 14 is a view corresponding to FIG. 1 showing a fourth embodiment of the present invention.

FIG. 15 is a flowchart showing the operation of the microcomputer.

FIG. 16 is a diagram showing the relationship between the type of detergent and the amount of laundry and the total amount of water supply.

[Explanation of symbols]

4 is a motor, 9 is a dehydration tank (rotary tank), 16 is a drain valve, 2
2 is a water supply valve, 34 is an input unit (detergent type input means), 36
Is a microcomputer (control means), 38 is a water supply valve,
Reference numeral 49 is a rotation sensor (laundry amount detecting means).

Claims (6)

[Claims] 1. A rotary tub for storing laundry, a water supply means for supplying water to the rotary tub, and a control means for rotating the rotary tub in a water supply state by the water supply means to execute a dehydration rinse operation. In the washing machine, a detergent type input means for inputting the type of detergent or soap used in the washing operation is provided, and the control means responds to the type of detergent or soap input by the detergent type input means. A washing machine, wherein the total amount of water supplied by the water supply means at the time of performing a dehydration rinse operation can be adjusted by changing the water supply state of the water supply means. 2. The washing machine according to claim 1, wherein the control means is configured to change the water supply state of the water supply means by intermittently driving the water supply means. 3. The water supply means is configured to be variable in water supply flow rate, and the control means is configured to change the water supply state of the water supply means by changing the water supply flow rate of the water supply means. The washing machine according to claim 1. 4. The control means is configured to continuously drive the water supply means and change the water supply state of the water supply means by terminating the dehydration rinsing operation when the total amount of water supply by the water supply means reaches a set amount. The washing machine according to claim 1, wherein 5. The control means, when the detergent or soap input by the detergent type input means is a specific one, continues the dehydration rinsing operation and drives the water supply means in a state where water is stored in the rotary tank. The washing machine according to any one of claims 1 to 4, which is configured to perform an operation. 6. A laundry amount detecting means for detecting the weight of the laundry stored in the rotary tub is provided, and the control means, when executing a dehydration rinsing operation, controls the detergent or soap input by the detergent type input means. The washing machine according to any one of claims 1 to 5, wherein the washing machine is configured to change a water supply state of the water supply means based on a type and a value detected by the laundry amount detection means.