KR100225138B1 - The washing machine - Google Patents

Abstract

[Technical field to which the invention described in the claims belong]

The present invention relates to a washing machine, and in particular, a washing machine equipped with a water supply and a pump water supply.

[Technical Challenges to Invent]

The present invention provides a washing machine that effectively utilizes the remaining water after bathing for saving water and rinses it hygienically.

[Summary of the solution of the invention]

When bath water is left in the final rinsing process, a storage rinse or water rinse is performed using the bath water, and then a final finishing rinse (clean shower rinse) is added. In the clean shower rinse, the water supply solenoid valve 27 is opened and the washing container 13 is slowly rotated while receiving water from the water supply channel 26.

As a result, cleanliness is ensured because the dirt mixed in the bath water is washed away even if it is attached to the laundry.

[Important Uses of the Invention]

It is a washing machine that uses a rinsing process that uses bath water for washing and washes down the dirt mixed with the bath water.

Description

washer

1 is a longitudinal sectional view of the washing machine to which the embodiment of the present invention is applied.

2 is a plan view showing the operation unit input key arrangement of the washing machine.

3 is an explanatory diagram of a water supply mode change by operating a bath water use key.

4 is a block diagram of the electrical system of the washing machine.

5 is a flow chart showing the basic flow of the washing process.

6 is a flowchart showing processing operations in the embodiment of the present invention.

7 is a flowchart showing processing operations in the embodiment of the present invention.

8 is a time chart for explaining the clean shower rinsing operation in an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

11: control panel 12: outer cylinder

13: washing machine 25: water level sensor

26: water supply passage 27: water supply solenoid valve

28: water supply pump 29: absorption pump

30: control unit

The present invention relates to a washing machine, and more particularly, to a washing machine provided with a water supply and a pump water supply.

In a washing machine with an absorption pump, a water supply valve is provided in the water supply channel, and an absorption pump is provided in the pump supply channel, and water is supplied to the laundry container while the opening and closing of the water supply valve and the operation of the absorption pump are controlled.

In general, the pump water supply is for effectively utilizing the rest of the bath after washing, and the operating unit of the washing machine is provided with an input key for selecting whether to use the pump water supply, that is, the bath water for washing.

However, in the washing machine, a series of washing steps are performed in the order of a washing step, a rinsing step, and a dehydration step. Among them, the rinsing step is generally performed a plurality of times, for example, two times.

Conventional rinsing methods include so-called "water rinsing" in which rinsing is performed while water is supplied to a washing container, and "storage rinsing" in which a predetermined amount of water is rinsed in a state filled with the washing container.

Recently, however, the first rinsing step has been commercialized for so-called "dewatering rinsing".

This dehydration rinsing is to dehydrate by rotating the laundry tub (dehydration pail) at high speed after water is supplied into the laundry tub so that the whole water soaks into the laundry. The rinse proceeds as the detergent liquid splashes with the water.

In dewatering rinsing, water needs to be soaked into the laundry so that a considerable amount of water savings can be achieved compared to "reserving rinsing" or "water rinsing".

As described above, dehydration rinsing has a great effect on saving water, but if the remaining water after the bath is available through the pump water supply, it is not necessary to save water, but rather cleaning performance or rinsing performance is important.

In general, if the storage rinse has a higher rinsing performance than the dewatering rinse, it is preferable to perform the storage rinse or the main rinse, if there is no need to suppress the water consumption.

However, the rest of the water after bathing is mixed with dirt, such as dirt and soap residue, which is unsanitary.

In addition, this dirt can be removed to some extent by a dirt removal filter installed at the inlet of the pump water supply, but it is not considered complete.

Therefore, in particular, there is a user's resistance to using the final rinse water before dehydration as a bath water, and it is common not to use the bath water during the final rinsing process.

The present invention has been made to solve such a problem, and an object thereof is to provide a washing machine that can effectively use bath water for washing and perform sanitary rinsing with water saving.

The first washing machine according to the present invention for solving the above problems is the opening and closing of the water supply valve installed in the water supply and the water supply and the pump water supply and the absorption pump installed in the pump water supply. A washing machine having a water supply control device for supplying water to a laundry container while controlling operation respectively, and performing a washing step, at least one rinsing step, and a dewatering step, comprising: a) the above-described washing step and at least one rinsing step; Input means operated to select whether or not to use the pump water supply, and b) when the use of the pump water supply is selected for the final rinsing step in one or more rinsing steps by the operation of the input means, the final rinsing step is performed. After either `` reserving rinsing '' or `` water rinsing '' is performed and the final rinsing process is finished, open the above water supply valve to supply water from the water supply And an operation control means for additionally executing a final finishing rinsing step of rotating said laundry container at the same time.

In the above first washing machine, the control means first determines whether the use of the pump water supply is selected for the final rinsing step in one or more rinsing steps.

If the use of pump feed water is selected, the absorption pump is operated as a final rinsing process by activating the absorption pump until the water level reaches the predetermined level in the tub, and then rinsing the reservoir under rinsing or rinsing with the whole body to continue the operation of the absorption pump. Run one of the rinse cycles.

After the final rinsing step is finished, the final finishing rinse step is added before the dehydration step.

In this final rinsing process, the water supply valve is opened and water is fed from the water supply channel to the laundry tub and the drum is rotated at low speed.

In doing so, the dirt attached to the laundry is washed away.

Therefore, according to the first washing machine of the present invention, even if the bath water is used in the final rinsing step, since the dirt attached to the laundry is removed in the final rinsing step, clean rinsing can be performed and the water used in the final rinsing step Since the usage is small, the cost increase can be suppressed.

In the second washing machine of the present invention, the operation control means of the first washing machine which performs two or more rinsing steps is a case where the use of the pump water supply is selected for each rinsing step, and the rinsing step before the final rinsing step is performed. When no water is supplied from the pump water supply passage during water supply, the remaining water supply of the rinsing step and the subsequent rinsing water supply are performed from the water supply passage and the final finishing step is not added.

That is, the operation control means opens the water supply valve in the rinsing process other than the final rinsing process before the predetermined quantity of water is filled in the washing container in the case of the storage rinsing, and when the abnormal condition of the pump water supply is detected during the rinsing in the case of the water rinsing. Transition to water supply

At this time, the water supply of the final rinsing process is all performed in the water supply channel, so the final finishing rinsing process is not added.

Therefore, according to the second washing machine described above, even when bath water is selected for the final rinsing step, when the bath water is lost and the final rinsing step is performed using tap water, unnecessary final rinsing step is not performed. Long rinsing times can be avoided.

In the third washing machine of the present invention, in the first washing machine, the operation control means is a case where the use of the pump water supply is selected in the final rinsing process, and the water supply in the pump water supply passage during the water supply of the final rinsing process is not. In the case, the remaining water of the final rinsing process is performed in the water supply channel, and at the same time, the final finishing rinsing process is added and executed.

That is, in the final rinsing step, the operation control means opens the water supply valve and transfers the water supply when the abnormal condition of the pump water supply is detected during the rinsing during the rinsing of the water before the predetermined amount is filled in the washing container in the case of the storage rinsing. .

At this time, the rinsing water of the final rinsing process is a mixture of water in the pump water supply and the water in the water supply, so that there is a high possibility that dirt is mixed, the final rinsing process is further performed.

Therefore, according to the third washing machine, even if the bath water disappears during the final rinsing process, the insufficient water is replenished with tap water, and after the final rinsing, the final rinsing process is performed, so that the clean rinsing can be performed.

In the fourth washing machine of the present invention, in the first washing machine which performs two or more rinsing steps, the operation control means is a case where the use of the pump water supply is selected in the washing process, If water supply is not available, the remaining water supply of the washing process is carried out in the water supply channel, and the rinsing process before the final rinsing process. It is characterized in that the dehydration rinse is rotated at a high speed and the final finishing rinse step is not added.

That is, when the pump water is not supplied during the washing water supply, tap water is used for both the remaining water supply of the washing process and the water supply of the rinsing process.

Thus, while there is no sanitary problem, the use of tap water is a problem.

For this reason, the operation control means does not add the final finishing rinsing step, but performs dehydration rinsing with a small amount of water as a rinsing step other than the final rinsing step.

In the dehydration rinse, the operation control means opens the water supply valve, supplies water from the water supply passage, and simultaneously rotates the laundry container to allow water to permeate the entire laundry.

Then close the water supply valve and rotate the laundry container at high speed.

In doing so, the detergent that soaks up the laundry is shaken off with water.

Therefore, according to the fourth washing machine, when the bath water disappears during the washing process, the dehydration rinsing is performed in the rinsing step before the final rinsing step, thereby reducing the amount of water used.

The fifth washing machine of the present invention includes a flow rate detecting means for the water supply water supply line in the first or third washing machine, and the operation control means performs the final rinsing process according to the detection result of the flow rate detecting means. It is characterized by determining the rinsing time.

The flow rate of water in the water supply channel is different depending on the environment and conditions. If the flow rate is low, the power to wash the dirt attached to the laundry in the final rinsing process is weakened.

So, before the final rinsing process, the flow rate detection means checks the flow rate of the water to the tap water supply, and the operation control means rotates the water supply valve and the washing tub to shorten the rinsing time when the flow rate is low and, conversely, when the flow rate is high. To control.

Therefore, according to the fifth washing machine, use of unnecessary water in the final finishing rinsing step can be avoided and clean and efficient rinsing can be performed.

In addition, the flow rate detection means is composed of a water level detection means for detecting the water level in the laundry container and a flow rate calculation means for calculating the flow rate in the time required to increase the predetermined water level, wherein the operation control means at the time of water supply in the final rinsing step Temporarily stop the operation of the absorption pump, open the water supply valve, switch to the water supply line in the pump water supply line, and supply water from the water supply line.

At this time, it is preferable that the water level in the laundry container is detected by the water level detecting means to determine the flow rate of the water supply to the water supply at a time required to raise the predetermined water level.

This makes it possible to calculate the flow rate of the water supply water supply without the need for adding a device such as a flow meter, so that a clean and efficient rinse can be performed with almost no increase in cost.

Next, an embodiment of the present invention will be described with reference to the drawings.

1 is a longitudinal sectional view of the washing machine of the present invention.

2 is a plan view showing an operation unit input key arrangement of a washing machine.

3 is an explanatory diagram of a water supply mode change in operation of a bath water use key.

4 is a block diagram of an electric block of a washing machine.

5 is a flow chart showing the basic flow of the washing process.

6 and 7 are flowcharts showing processing operations of the washing machine of the present invention.

8 is a control time chart of the final rinsing process (clean shower).

First, the configuration of the entire washing machine in the first road will be described.

The operation part 11 provided with an input key is provided in the upper back part of the main body 10. As shown in FIG.

An outer cylinder 12 is disposed inside the main body 10, and a washing container 13 that serves as a dehydration container having a plurality of dehydration holes in a circumferential wall is provided inside the outer cylinder 12.

Rotating blades 14 for stirring laundry are disposed at the bottom of the laundry container 13, and the rotation of the motor 15 is performed by the motor pulley 16, the belt 17, the main pulley 18, and the power switching mechanism 19. Through) to deliver to the laundry container 13 and the rotary blade (14).

The power switching mechanism 19 rotates only the rotary blade 14 when washing, and performs mechanical switching to rotate the laundry container 13 and the rotary blade 14 together when dewatering.

A drain port 20 is installed at the bottom of the outer cylinder 12 and is drained through the drain pipe 21 opened and closed by the drain solenoid valve 22.

In addition, an air trap 23 is installed at one side of the bottom of the outer cylinder 12 and is connected to the water level sensor 25 through the pressure hose 24, and the air pressure according to the water level is detected by the water level sensor 25. The water level in the outer cylinder 12 is detected.

Water supplied from the water supply channel 26 is pumped to the laundry container 13 through the water supply solenoid valve 27, and the water from the pump water supply channel 28 is sucked up by the absorption pump 29, and the laundry container 13 is supplied. Is fed into.

The so-called L1 to L4 indicated by dotted lines in the laundry container 13 in the drawing correspond to "small", "low", "medium", and "high" modes of four preset washing (or rinsing) levels, respectively. It is.

The water level L0 set at a position lower than the water level L1 is a check level (hereinafter referred to as a reset level) for quickly detecting an abnormal state of water supply.

Next, the input key arrangement in the operation part 11 of FIG. 1 is demonstrated with reference to FIG.

And a display section 41 for displaying the mode or numerical value selected by the input key.

The function of each input key of the input unit 40 will be described below in order.

The water level selection key 42 is an input key for the operator to manually select one of the four modes, “small”, “low”, “medium” and “high” during the washing process and the rinsing process according to the amount of laundry. to be.

The part of the selected water level mode in the display portion 41 is turned on.

The water level in the laundry container 13 corresponding to these four modes is shown in the position of L1-L4 of FIG.

In addition, the water level during the washing process and the rinsing process is generally automatically selected according to the amount of laundry detected by the load sensor, and the selected water level mode is displayed.

The bath water use key 43 is an input key for the operator to select which of the washing water, the first rinsing process, and the second rinsing process to use the bath water supplied through the pump water supply passage 28.

As shown in FIG. 3, each time the bath water using key 43 is pressed, the process of using the bath water is changed so that the part in the display unit 41 corresponding to the bath water is turned on.

The course selection key 44 is an input key for selecting one of a plurality of washing courses in which washing time or water flow is determined in advance according to the type of laundry or the degree of contamination, and a portion in the display 41 corresponding to the selected course is selected. It is supposed to light up.

The basic course selection function 45 is an input key for the operator to freely set the time of washing or dehydration, the number of rinses, and the like.

The value according to the input operation is displayed on the display section 41.

These numerical settings can be temporarily stored in memory, and a series of washing processes can be executed as stored in memory by selecting " automatic "

In addition, the reservation key 46 is an input key for reserving a washing start time, and the powder soap dissolving key 47 is used in advance when the laundry is put into the laundry container 13 when the powder soap is insoluble in water. This is an input key to control when the powder soap is melted and dropped by precipitation (strong water stem).

Next, the electrical configuration of the washing machine provided with the water supply control device in the present invention will be described.

Mainly, the control part 30 which comprises a microcomputer is demonstrated.

The key input signal is input from the input unit 40 of the operation unit 11, and the water level detection signal is input from the water level sensor 25.

The control unit 30 has a memory storing an operation program and receives a key input from the input unit 40 to drive the motor 15 according to the corresponding operation program. The water supply solenoid valve 27 The operation or operation of the absorption pump 29 and the drain solenoid valve 22 is controlled.

In addition, in response to the key input signal, the display unit 41 displays a light as described above.

The flow of the basic washing process of the washing machine having the above configuration is shown in FIG.

The controller 30 first executes the washing process in accordance with the operation program, and then performs the first rinsing process and the second rinsing process in sequence, and finally performs the dehydration process.

As described above, it is also possible for the operator to operate only the basic course selection key 45 to execute only a part of the washing process.

Next, a series of processing operations of the washing machine in the present invention will be described along the flowcharts of FIGS. 6 and 7.

If the start key 48 is operated after the washing water level, bath water use, etc. are selected by the input key operation, the control unit 30 starts the operation according to the operation program.

First, it is determined whether or not the washing step is set (step S10).

That is, if the washing process is included in the set washing course, the process proceeds to step S11, and if the washing process is not included, the process proceeds to step S15.

When the washing process is set, the control unit 30 executes the washing process.

First, the absorption pump 29 is operated to start water supply of the bath water through the pump water supply passage 28 (step S11).

When the water level in the laundry container 13 is selected by the operator by the detection signal of the water level sensor 25, or when the water level in the washing container 13 is automatically set according to the amount of laundry (step S12), the absorption pump 29 is operated. Is stopped (step S14).

That is, the bath water is supplied until L1 to L4 corresponding to any of the water level modes of "small", "low", "medium" and "high" is reached.

Detergent may be automatically added before water supply, or may be introduced by the operator himself.

It is determined repeatedly whether or not there is an increase in the water level in order to determine whether or not the pump water supply is abnormal while the water level in the laundry container 13 reaches the washing water level (step S13).

At this time, for example, when the water level is increased by a predetermined amount by the detection signal of the water level sensor 25 every 5 seconds, it is determined that the water supply is normal.

If it is determined that the water supply is normal, the flow returns to step S12 to determine again whether the water level in the laundry container 13 has reached the washing water level.

Therefore, the pump water supply is continued until the water level in the laundry container 13 reaches the washing water level by the processing of steps S12 to S14, as long as there is no abnormality in the pump water supply such as bath water disappears.

When the water level in the laundry container 13 reaches the washing water level, washing is performed (step S16).

At this time, the control unit 30 controls the motor driving unit 31 to rotate only the rotor blades at a predetermined rotation speed to perform the laundry.

After the washing process proceeds for a predetermined time, the drain solenoid valve 22 is opened and the dirty detergent water in the laundry container 13 is discharged from the drain port 20 (step S17).

Subsequently, intermediate dewatering (step S18) is performed to efficiently rinse.

In this intermediate dehydration, the control unit 30 controls the motor driving unit 31 and rotates the laundry container 13 and the rotary blade 14 together at high speed so that the detergent water penetrating into the laundry is shaken off and the drain solenoid valve 22 is removed. Becomes open.

If the washing step is not set in step S10, it is determined whether or not the water level in the laundry container 13 is equal to or higher than the reset water level L0 according to the detection signal of the water level sensor 25 (step S15).

Generally, the water in the laundry tub 13 is drained at the beginning of washing, but water is washed in the laundry tub 13, for example, when washing is started in a state where water previously used is left by an operator's manual operation. Check this because it may be stuck inside.

If the water level is greater than or equal to the reset level L0 in step S15, the flow advances to step S17 to discharge the water in the laundry container 13, and then intermediate dehydration is performed.

If the water level is lower than the reset water level L0, the flow advances to step S18 to perform intermediate dehydration as it is.

When it is determined in step S13 that there is no water level rise, it is determined that the pump water is not supplied due to the lack of bath water or the clogging of the filter at the intake port.

In this case, the operation of the absorption pump 29 is stopped and the water supply solenoid valve 27 is opened to start the water supply from the water supply water supply path 26 (step S19).

The water supply solenoid valve 27 is closed after the tap water is supplied to the washing water level according to the detection signal of the water level sensor 25.

In addition, washing, drainage, and intermediate dewatering are performed by the processing of steps S20 to S22 similar to steps S16 to S18.

After the intermediate dehydration of step S18 or S22 is finished, it is determined whether the next step is a final rinsing step (step S29 or S23).

In other words, when the determination of step S29 or S23 is first performed except for the washing course in which only one rinse is performed, the next turn is not a final rinse.

When the next step in step S23 is the final rinsing step, the flow advances to step S26 to open the water supply solenoid valve 27 to start absorption in the water supply and flow path 26.

And when the tap water is supplied to the rinsing water level according to the detection signal of the water level sensor 25, the water supply solenoid valve 27 is closed.

If the next next step is not the final rinsing step in step S23, that is, if the first and second two rinsing steps are performed, the flow proceeds to step S24 and first, dehydration rinsing is performed as the first rinsing step.

In the dehydration rinse, the drain solenoid valve 22 is kept open to discharge the detergent water at the end of the washing process.

The feed solenoid valve 27 is opened and the tap water is supplied into the washing tub 13.

At this time, the control unit 30 controls the motor driving unit 31 and slowly rotates the laundry container (dehydration container) 13 and the rotary blade 14 together.

As the water container 13 rotates slowly and water is supplied, the water in the laundry inside the clothes container 13 is almost completely covered with water, so that the water soaks in the entire laundry.

At this time, the amount of water supplied is, for example, several liters up to 10 liters and is consumed much less than the amount of water required for the storage rinse or the main rinse.

When water is supplied for a predetermined time so that water is well absorbed into the entire laundry, the water supply solenoid valve 27 is closed, and then the laundry container 13 is rotated at a high speed for a predetermined time to perform dehydration.

The detergent water which has soaked in the laundry by this dehydration is shaken out with the water and discharged from the drain 20.

After completion of the dehydration rinse, intermediate dewatering is performed in step S25 as in step S22.

Dewatering rinsing consists of a series of process flows, such as water supply while slowly rotating the laundry container 13 as described above, and dehydration by high-speed rotation. As a first rinsing process, a plurality of cycles are used for this series of flows as one cycle. For example, you can run two cycles repeatedly.

After the dehydration rinsing step, that is, the first rinsing step is finished, or only one rinsing step is set, the control unit 30 executes the second rinsing step.

In this second rinsing step, a storage rinsing step is performed.

In the second rinsing step, first, when the water supply solenoid valve 27 is opened while the drain solenoid valve 22 is closed, the water supply starts and the water supply is performed until the water level in the washing container 13 reaches the rinse water level. The solenoid valve 27 is closed (step S26).

At this time, a finish agent (clothing softener) may be added to the rinsing water.

When a predetermined amount of water is filled in the laundry container 13, the control part 30 controls the motor drive part 931 to rotate only the rotary blade 14 at low speed. (The laundry container 13 does not rotate) (step S27).

The rinsing time at this time is a value set in advance in the operation program in the control unit 30 and is about 2 minutes in standard.

After completion of the rinsing of the rinse, the drain solenoid valve 22 is opened, and the rinsing water is discharged from the drain outlet 20 (step S28).

On the other hand, when the next step is not the final rinsing step in step S29, that is, when the first and second rinsing steps are executed, the flow proceeds to step S43 and a storage rinsing step using bath water as the first rinsing step is performed.

In this storage rinsing step, water is supplied to the bath water until the rinsing water level is reached by the processing of steps S43 and S44.

If an abnormality occurs in the water supply during the water supply, the flow proceeds to step S46 to transfer to the water supply.

Therefore, in this case, the rinsing water of the first rinsing step is a mixture of bath water and tap water.

After that, after the end of the storage rinsing, the rinsing water is discharged (step S48).

Subsequently, the same dehydration and 2nd rinse process (reservation rinse) are performed by the process of steps S49-S52 similar to step S25-S28.

If there is no abnormality in the bath water supply during the water supply of the first rinsing step in step S44, the flow advances to step S45, and after the storage rinsing using the bath water is executed, the flow returns to step S17.

The above-mentioned drainage (step S17) and intermediate dewatering (step S18) are executed, and it is determined again whether the next process is the final rinse in step S29.

In the case of the present embodiment, when the determination in step S29 is the second time, the next step is necessarily the final rinse, and the flow proceeds to step S30.

In steps S30 and S31, the bath water is supplied until the rinsing water level is reached by the same processing as in steps S43 and S44.

If an abnormality occurs in the pump water supply during the water supply, the flow advances to step S40 to transfer the water supply.

After the water supply solenoid valve 27 is opened and water supply from the water supply water supply passage 26 is started, the flow rate of the tap water is measured until the water supply is completed (step S41).

Although details will be described later, in the measurement of the flow rate, the flow rate is determined at the time required for the predetermined level rise in accordance with the detection signal of the water level sensor 25.

When the water level in the laundry container 13 reaches the predetermined rinsing water level, the water supply solenoid valve 27 is closed and a storage rinsing is performed (step S35).

If there is no abnormality in the bath water supply in step S31, the flow advances to step S32 to measure the flow rate of tap water.

At this time, the pump water supply is performed, but once the operation of the water absorption pump 29 is stopped and the water supply solenoid valve 27 is opened to start water supply from the water supply water supply path 26.

Then, as in step S41, the flow rate is determined by the time required for the predetermined amount of water level rise in accordance with the detection signal of the water level sensor 25.

When the flow rate measurement is completed, the water supply solenoid valve 27 is closed and the absorption pump 29 is operated again to resume the water supply of the bath water (step S33).

In other words, the water supply and supply is temporarily performed only in order to measure the flow rate of the water supply and supply path 26.

If an abnormality occurs in the bath water supply before the water is filled up to the rinsing water level (step S34), the flow advances to step S42 to shift to tap water supply.

After the bath water or water mixed with the bath water reaches the predetermined rinsing water level, the storage rinsing is performed as the second rinsing step (step S35).

After the end of the storage rinsing, the drain solenoid valve 22 is opened so that the rinsing water is discharged (step S36), and the intermediate dehydration is performed again (step S37).

In this case, since the bath water is used in the second rinsing step (final rinsing step), the final finish rinsing (clean shower rinsing) is performed as the third rinsing step (step S38).

In the above clean shower rinse, the control unit 30 opens the water supply solenoid valve 27 and performs water supply from the water supply water supply passage 26.

At this time, the drain solenoid valve 22 is in an open state.

Simultaneously with the water supply, the control unit 30 controls the motor driving unit 31 so that the laundry container 13 and the rotary blade 14 slowly rotate together.

An example of the control time chart at this time is shown in FIG.

The motor drive unit 31 is controlled so that the water supply solenoid valve 27 is opened and the energization-non-energization (ON-OFF) of the motor 15 is repeated for 1.5 seconds to 8 seconds.

For this reason, water supply is performed from the upper part while the laundry container 13 rotates slowly like the operation | movement of the front part of dehydration rinse.

As a result, the entire laundry in the laundry tub 13 is covered with water, and when the laundry is attached to the laundry, it is discharged together with the water to be washed off.

The operation time of the clean shower rinse is set in accordance with the flow rate of the tap water measured in step S32 or S41.

In other words, if the flow rate of the tap water is high, the power to wash down the time attached to the laundry is strong, so it is shorter operation time. On the contrary, if the flow rate of water is low, the power to wash down the time attached to the laundry is weak. It's time.

Specifically, for example, the following operating time is determined.

In measuring the flow rate of tap water, the time T required to increase the water level by 20 mm is measured from the time when the water level in the laundry container 13 reaches 20 mm lower than the reset water level L0 until it reaches the reset water level L0. do.

And when the time T is less than 16 seconds, the flow rate L is 15 Estimated more than / min, clean shower operation time is set to 36 seconds.

When the time T is more than 16 seconds but less than 24 seconds, the flow rate L is 15 Per minute less than 10 Estimated more than / min, clean shower operation time is set to 54 seconds.

When the time T is longer than 24 seconds, the flow rate L is 10 It is estimated that less than / min, clean shower operation time is set to 108 seconds.

After the clean shower rinse is performed during the set operation time, the control unit 30 finally performs the dehydration process (step S39).

Also, in the case where the storage rinsing is performed, the dehydration step is similarly performed last.

In the dehydration step, the drain solenoid valve 22 is opened and the laundry container 13 is rotated at high speed together with the rotary blades 14.

As a result, the rinsing water that leaks into the laundry is shaken out, so that dehydration is completed, and the whole process of washing is finished.

In addition, in the above embodiment, water rinsing may be performed instead of the storage rinsing.

In the case of water rinsing, the rotor blade 14 continues while the water supply is continued while the absorption pump 29 continues to operate even after a predetermined amount of water is filled in the washing container 13, or the water supply solenoid valve 27 is left open. To rinse.

At this time, the water is drained to the overflow outlet in the outer cylinder (12).

Claims (6)

The water supply water supply passage 26 and the pump water supply passage 28 are provided, and each of the washing tanks is controlled by controlling the opening and closing of the water supply valve 27 installed in the water supply passage and the operation of the absorption pump 29 installed in the pump water supply passage. 13. A washing machine having a water supply control device for supplying water to 13) and performing a washing step, at least one rinsing step, and a dewatering step, comprising: a) at the pump water supply in the washing step and / or at least one rinsing step; B) an input means operated to select whether or not to use (28) and b) a final rinsing step when the use of the pump water supply passage 28 is selected for the final rinsing step in one or more rinsing steps by operation of the input means. After performing either the storage rinsing or the main rinsing, and after the final rinsing step is completed, the water supply valve 27 is opened to supply water from the water supply passage 26 and to rotate the laundry container 13 at the same time. Final finish Washing machine characterized by comprising a driving control means for executing by adding a rinsing step. The washing machine which performs a rinsing process two or more times, wherein said operation control means is a case where the use of the pump water supply path 28 is selected for each rinsing process, and the above-mentioned water is supplied during the rinsing process before the final rinsing process. When the water supply in the pump water supply passage is not available, the remaining water supply of the rinsing step and the subsequent water supply of the rinsing step is performed in the water supply water supply passage (26), and at the same time the final rinsing process is not added. 2. The operation control means according to claim 1, wherein the use of the pump feed water in the final rinsing step is selected and when the water supply in the pump feed water is not supplied during the feed of the final rinsing step, the remainder of the final rinsing step. A washing machine characterized in that water is supplied from a water supply channel and a final rinsing step is added. 2. The washing machine of claim 1, wherein in the washing machine that performs two or more rinsing steps, the operation control means is a case where the use of the pump water supply is selected in the washing process, and the water supply in the pump water supply passage is not performed during the washing water supply. If not, the remaining water supply of the washing process is carried out in the water supply passage, and the water supply in the water supply passage 26 at the same time as the rinsing process before the final rinsing process evenly soaks water into the laundry, Washing machine characterized in that the dehydration rinse to rotate at high speed, and does not add the final finishing rinse step. 4. The water supply and recirculation path 26 is provided with a flow rate detecting means again, and the operation control means determines the rinsing time in the final finishing rinsing process according to the detection result of the flow rate detecting means. Washing machine characterized in that. 6. The flow rate detecting means according to claim 5, wherein the flow rate detecting means comprises water level detecting means for detecting a water level in the laundry container 13, and a flow rate calculating means for calculating a flow rate at a time required to rise to a predetermined water level. The control means temporarily stops the operation of the absorption pump 29 at the time of water supply in the final rinsing step, opens the water supply valve 27, and switches to the water supply in the pump water supply path 28 to supply the water supply path 26. Water supply in the washing container 13 is detected at this time by the water level detecting means, and the flow rate of the water supply and feed water passage 26 is obtained at a time required to raise the predetermined water level. Washing machine.