JP2007007155A - Washing machine, driving method of washing machine and reuse method of rinsing drainage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing machine put on the market as a completed product by naturally assembling a purifying device for purifying wash water to be drained and to provide a driving method saving the water of the washing machine and a driving method reducing the number of replacement maintenance times of metal electrodes in an electrolyzer. <P>SOLUTION: A dissolving device 41 purifies rinsing water having less surfactant (a necessary dissolving amount of metal ions is a little) compared with the wash water so as to minimize the dissolving amount of an electrode pair 43 generating the metallic ions. This constitution enables reduction of the number of replacement maintenance times of the electrode pair 43. Bath water is used for washing and first rinsing, and the bath water finishing the purification by the dissolving device 41 till finishing the washing operation is used for the first rinsing in the same washing process to save the water and effectively use the purified rinsing water in an early stage. The large quantity of water can be saved by increasing the capacity of a water storage tank 47. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a washing machine, a washing machine, and a method for driving a method for reusing rinsing drainage, and in particular, a washing machine having a mechanism for purifying and reusing washing water, a method for driving the washing machine, and rinsing drainage. Reuse method.
In this specification, “washing water” is used for washing or rinsing, which includes both water containing a large amount of detergent components used for washing and water containing less detergent components used for rinsing. Used to mean water.

In the washing machine, the following Patent Document 1 and Patent Document 2 propose that the used cleaning water is purified when drained, or the cleaned cleaning water is reused.
The washing machine described in Patent Document 1 includes an electrolysis device for electrolyzing the wash water to be drained. The electrolysis apparatus has a metal electrode such as aluminum or iron, and the wash water after use is directly electrolyzed and purified using the electrode.

The washing machine described in Patent Document 2 includes an electrolysis device for electrolyzing water, a coagulation device that mixes electrolyzed water obtained by the electrolysis device with used washing water, and washing water that has passed through the coagulation device. And a filtration device for separating the agglomerates from the filter. The water purifier for a washing machine described in Patent Document 2 generates an electrolysis product by electrolyzing water, mixes the electrolysis product with used washing water in a coagulation device, and uses the electric product to wash water. In this structure, contaminants such as surfactants and organic substances are agglomerated, and then the agglomerates are filtered by a filtration device.
Japanese Patent No. 3014658 JP 2001-286698 A

  The washing machine described in Patent Document 1 is configured to directly electrolyze the wash water to be drained. As pointed out in Patent Document 2, the method of directly electrolyzing the wash water is mixed during washing. Due to the lint and the like, the electrode must be frequently maintained, and there is also a problem that an effective aggregating action cannot be obtained unless the electrolysis time is lengthened.

  On the other hand, the washing machine described in Patent Document 2 generates electrolytic products by electrolyzing water prepared separately from cleaning water, and purifies the cleaning water by mixing it with used cleaning water. This idea is excellent, but it does not solve the structural technical problem for incorporating such a purification device into an actual washing machine. In addition, when washing water used for washing is coagulated and purified with a purification device, the amount of surfactant in the washing water is large, and a long period of operation requires a large amount of metal electrodes to generate electrolyzed water. There is a problem that the number of maintenance increases.

An object of the present invention based on such a background is to provide a washing machine that is commercially available as a finished product, in which a purification device for purifying drained washing water is reasonably incorporated.
Another object of the present invention is to provide a driving method that saves water in a washing machine by purifying and reusing washing water used for rinsing.

Still another object of the present invention is to provide a driving method for saving water in a washing machine by using bath water for rinsing and purifying and reusing the bath water used for rinsing.
Still another object of the present invention is to provide a driving method of a washing machine in which the number of replacement maintenance of metal electrodes in an electrolysis apparatus is reduced.

The invention according to claim 1 is an outer tub capable of storing cleaning water, a washing / dehydrating tub provided in the outer tub and rotating and containing laundry, and rinsing water drained from the outer tub Among these, the washing machine includes a water storage tank that selectively stores only the wash water after rinsing, and a purification device that purifies the stored wash water for reuse.
The invention according to claim 2 is the washing machine according to claim 1, characterized in that the water storage tank has a capacity capable of storing the wash water after two rinses.

The invention described in claim 3 includes a configuration in which the purification device mixes and dissolves dissolved water in which metal ions are dissolved in cleaning water stored in a water storage tank, and agglomerates and removes dirt components in the stored cleaning water. A washing machine according to claim 1 or 2, characterized in that.
The invention according to claim 4 is the driving method of the washing machine according to claim 2, wherein the water purified by the purification device is used for washing and rinsing in the next washing step. This is a method of driving the machine.

The invention according to claim 5 is the driving method of the washing machine according to claim 2, wherein the water purified by the purification device is used for the first rinse and the second rinse in the next washing step. This is a method for driving a washing machine.
The invention described in claim 6 includes an outer tub capable of storing cleaning water, a washing / dehydrating tub provided in the outer tub and rotating to accommodate laundry, and a water storage tub for storing water. A washing machine comprising: a purifying device for purifying water for use as washing water; and means for supplying bath water to the water tank.

The invention according to claim 7 is the washing machine according to claim 6, characterized in that the water storage tank has a capacity capable of storing washing water for two times.
The invention according to claim 8 includes a configuration in which the purification device mixes and dissolves dissolved water in which metal ions are dissolved in cleaning water stored in a water storage tank, and agglomerates and removes dirt components in the stored cleaning water. A washing machine according to claim 6 or 7, characterized in that.

Invention of Claim 9 is a driving method of the washing machine in any one of Claims 6-8, Comprising: Washing water used for washing uses tap water or bath water, and uses it for the 1st rinse. Washing water uses bath water purified by the purification device, and purification of bath water used for the first rinsing is completed before the washing is completed. It is.
The invention according to claim 10 is the method for driving the washing machine according to any one of claims 6 to 8, wherein the next washing step is determined to end at a time determined by the reserved operation. In the case, in the method for driving the washing machine, the purification of the bath water in the purification device is completed by the time the next reserved operation is started and the next washing process is completed. is there.

The invention of claim 11 stores water after being used for rinsing at least twice in a water tank, purifies the water stored in the water tank, and wash and rinse the purified water in the next washing, or It is a reuse method of the rinse drainage characterized by reusing it for two rinses.
The invention described in claim 12 is characterized in that the purification is performed by mixing dissolved water in which metal ions are dissolved in water stored in a water storage tank, and coagulating and removing dirt components in the stored water. The method for reusing rinse waste water according to claim 11.

According to the first aspect of the present invention, out of the wash water used for washing, the wash water (rinse water) used for rinsing is stored in the water storage tank and purified by the purification device for reuse. For this reason, since the rinse water in which the amount of the surfactant is small as compared with the wash water used for washing is purified, the purification is relatively easy.
According to the second aspect of the present invention, since the rinse water for two times purified by the purification device can be reused for washing and rinsing in the next washing step or two rinses, water can be saved significantly.

In the invention of claim 3, since the electrode is not in direct contact with the washing water, the deterioration of the electrode is suppressed. As a result, the number of times of maintenance of the electrode can be reduced, and the effective aggregating action can be maintained.
In the invention according to the fourth aspect, the purified water can be reused for the washing in the next washing step and the first rinsing, so that water can be saved significantly.
According to the fifth aspect of the present invention, the purified water can be reused for the first and second rinses in the next washing step, so that water can be saved significantly.

In the invention of claim 6, since bath water can be used as washing water, water saving can be achieved.
In the invention according to claim 7, since the rinse water for two times, including bath water, purified by the purification device can be reused for washing and rinsing in the next washing step or two rinses, water saving is further greatly reduced. Can be planned.

In the invention according to claim 8, since the electrode does not directly contact the cleaning water containing bath water, the deterioration of the electrode is suppressed, and as a result, the number of times of maintenance of the electrode can be reduced and the effective aggregating action can be continued.
In the invention of claim 9, bath water is used for washing and first rinsing, and bath water is purified by a purifier during the washing operation in order to be used for the first rinsing in the same washing process. Thereby, washing and purification can be performed in parallel, and the time required for the entire washing can be shortened. In addition, water can be saved, and purified rinse water can be effectively used at an early stage.

  In the invention according to claim 10, since the purification of the rinse water by the purification device is performed using the waiting time for the next washing step in which the execution time is set in advance, the purified rinse water can be effectively used early. And can save water. If the purified rinse water is left for a long period of time, various germs and the like may propagate and become unsuitable for reuse. However, the present invention eliminates such an adverse effect.

As described above, according to the present invention, it is possible to provide a washing machine that can be easily marketed as a finished product by incorporating a purification device for purifying the washing water to be drained. In addition, it is possible to provide a driving method for saving water in the washing machine or a driving method in which the number of times of maintenance for replacing the metal electrode in the electrolyzer is reduced.
In the invention according to the eleventh aspect, at least twice of the rinse water purified by the purification device can be reused for washing and rinsing in the next washing step or two rinses, so that significant water saving can be achieved.

In the invention of claim 12, since the electrode is not in direct contact with the washing water, the deterioration of the electrode is suppressed. As a result, the number of times of maintenance of the electrode can be reduced, and the effective aggregating action can be maintained.
In addition, the method of Claim 11 and 12 can be utilized not only as what the purification apparatus was integrated in the washing machine but as a purification system of the rinse water provided separately.

FIG. 1 is a longitudinal sectional view of a drum type washing machine 10 according to an embodiment of the present invention. FIG. 2 is a front view of the drum-type washing machine 10, in which the internal components are partially shown by broken lines.
Referring mainly to FIG. 1, the drum type washing machine 10 is partitioned by a housing 11 as a frame. As shown in FIG. 2, the housing 11 is a substantially rectangular parallelepiped whose front shape is a vertically long rectangular shape.

  An outer tank 12 is provided in the housing 11, and a rotating drum tank 13 is disposed in the outer tank 12. The outer tub 12 has a cylindrical shape having a central axis 14 extending in the front-rear direction. The rotary drum tank 13 is a horizontal axis type, is concentrically accommodated in a cylindrical outer tank 12, and is provided to be rotatable about a central axis 14. The center axis 14 of the outer tub 12 and the rotary drum tub 13 is inclined in a range of about 10 to 30 ° with respect to the horizontal line so that the front side is inclined upward. In this embodiment, the central axis 14 of the outer tub 12 and the rotating drum tub 13 is taken as an example of a so-called oblique drum type washing machine in which the central axis 14 extends horizontally as described above. The present invention can also be applied to a drum-type washing machine. The front side end surface 15 of the outer tub 12 has a ring shape along the peripheral surface, and a large laundry entrance 16 is formed at the center thereof. Corresponding to the entrance / exit 16 of the outer tub 12, a circular opening 17 is formed in the housing 11 in the upper front portion. The opening 17 is inclined backward corresponding to the inclination of the outer tub 12. The space between the opening 17 and the entrance / exit 16 of the outer tub 12 is sealed with, for example, an elastic packing 18.

A lid 19 is attached to the opening 17 so as to be freely opened and closed. The lid 19 opens and closes the opening 17 of the housing 11 and the entrance / exit 16 of the outer tub 12, and also serves as a lid for the laundry entrance / exit 20 of the rotating drum tub 13.
The rotary drum tank 13 includes a cylindrical peripheral surface plate 21, a front end surface plate 22 in which the entrance / exit 20 is opened, and a rear end surface plate 23. A large number of small holes 24 are formed in the peripheral surface plate 21 over almost the entire circumference. Through the small holes 24, the inside of the rotary drum tank 13 communicates with the inside of the outer tank 12. A plurality of baffles 25 are provided in the rotating drum tank 13 so as to protrude from the inner wall of the peripheral surface plate 21. The baffle 25 may also project from the rear end face plate 23. The baffle 25 is a protrusion for lifting the laundry.

  The rotating drum tank 13 is rotated around the central axis 14 by a motor 26 provided behind the rear end face plate 23. The rear end face plate 23 of the rotary drum tank 13 is provided with a rotary shaft 27 that protrudes rearward about the central shaft 14. A part of the rotating shaft 27 is held by the rear end face plate 29 of the outer tub 12 via a bracket 28. The motor 26 described above is disposed behind the rear end face plate 29 of the outer tub 12. The motor 26 is a direct drive (DD) motor. The stator 30 rotatably holds the rotary shaft 27 via a bearing 73, and the stator 30 itself is fixed to the rear end face plate 29 of the outer tub 12. . The rotor 31 has a central portion fixed to the rear end of the rotary shaft 27. Therefore, when the rotor 31 is rotated by the stator 30, the rotating shaft 27 and the rotating drum tank 13 are rotated with the rotation of the rotor 31.

  For example, the upper surface of the housing 11 is provided with a water supply port 32 to which a water supply facility (not shown) can be connected. One end of a main water supply pipe 33 is connected to the water supply port 32, and the other end of the main water supply pipe 33 is connected to the detergent container 34. The detergent container 34 is communicated with a water supply hole 35 formed in the upper front portion of the outer tub 12 and a water supply pipe 36. A first valve 37 is provided in the middle of the main water supply pipe 33. When the first valve 37 is opened, the tap water supplied from the water supply port 32 through the main water supply pipe 33 passes through the water supply pipe 36 while dissolving the detergent contained in the detergent container 34, and passes through the water supply hole 35 to enter the outer tank 12. Can be stored. The water accumulated in the outer tub 12 enters the rotating drum tub 13 through a number of small holes 24 formed in the peripheral plate 21 of the rotating drum tub 13, and the water levels in the rotating drum tub 13 and the outer tub 12 are substantially equal. Become.

A bath water pump 38 is further provided in the housing 11. The bath water pump 38 pumps up bath water (not shown) through the pipe 39 and supplies water into the outer tub 12 from the water supply hole 35 through the water supply pipe 40, the detergent container 34 and the water supply pipe 36.
One of the features of the drum-type washing machine 10 according to this embodiment is that a melting device 41 is attached to the rear end surface side of the outer tub 12. As shown in FIG. 2, the melting device 41 has a center on the extension line of the central axis 14 of the outer tank 12 and the rotating drum tank 13, and has a vertically long shape. The melting device 41 includes a processing tank 42 having a vertically long shape and an electrode pair 43 provided in the processing tank 42. The electrode pair 43 includes a first electrode 44 and a second electrode 45, and is disposed to be opposed to the spacer 46 at a constant interval, for example, an interval of about 5 mm. In this embodiment, both the first electrode 44 and the second electrode 45 are made of aluminum.

  A water storage tank 47 is further provided in the housing 11. The water storage tank 47 is disposed below the outer tub 12 and is fixed to a frame 11 </ b> B that constitutes the bottom of the housing 11. The water storage tank 47 has a capacity of about 30 liters, for example. The inner bottom surface of the water storage tank 47 includes an inclined bottom surface 48 that is inclined downward from the front to the rear, and the lowest dirt component storage region 49 is formed at the rear of the inner bottom surface.

In this embodiment, the melting device 41 and the water storage tank 47 are components of the purification device, and are piped as follows.
A drainage port 50 is formed at the lowest position in the outer tub 13, and a drainage pipe 51 a is connected to the drainage port 50. The drain pipe 51b extends outside the machine. A second valve (drain valve) 52 is inserted between the drain pipes 51a and 51b. A branch pipe 53 is provided from the second valve 52 toward the water storage tank 47. The second valve 52 is a valve that can switch the direction of drainage, and is in a closed state, a state of draining from the drain pipe 51a to 51b, and a state of flowing from the drain pipe 51a to the water storage tank 47 via the branch pipe 53. Switch.

A drainage port 54 communicates with the water storage tank 47 at the lowest position, and the drainage port 54 joins the drainage pipe 51 b via the third valve 55.
A pumping device 56 is disposed in the water storage tank 47. The pumping device 56 is a device for pumping water stored in the water storage tank 47, and includes a pumping port 57 and a filter 75 provided at the pumping port 57. The filter 75 can be made of, for example, a nonwoven fabric, filter paper, glass fiber, or the like. A lower end of a pumping pipe 58 provided with a pump 59 is connected to the pumping device 56 on the way. The upper end of the pumping pipe 58 is connected to the water supply hole 35 of the outer tub 12.

  A water supply port 61 is formed at the upper end of the melting device 41, and this water supply port 61 communicates with the first valve 37 through a water supply pipe 60. A drainage port 62 is formed at the lower end of the melting device 41, and a water supply path 64 connected to the water storage tank 47 via the fourth valve 63 is connected to the drainage port 62. The water supply path 64 also functions as a path for guiding condensed water or cooling water generated by the operation of a later-described drying device to the water storage tank 47.

Further, the upper end of the branch path 65 is connected to the water supply port 32, and the fifth valve 71 is interposed in the middle of the branch path 65. The lower end portion of the branch path 65 can supply cooling water to the drying device. Thus, it is connected to the drying air path 66 of the drying device. A fan 67 and a heater 68 are disposed in the drying air passage 66.
Further, the bath water pump 38 and the water storage tank 47 are connected by a water supply pipe 69, and a sixth valve 70 is interposed in the middle of the water supply pipe 69. In addition, 74 in FIG. 1 is a damper.

The branch pipe 53, the pumping pipe 58, and the water supply path 64 described above are preferably flexible pipes. This is because if these are flexible pipes, vibration generated in the outer tub 12 is not transmitted to the water storage tank 47.
FIG. 3 is a longitudinal sectional view of a drum-type washing machine 80 according to another embodiment of the present invention, and FIG. 4 is a front view of the drum-type washing machine 80, with the internal components partially broken. FIG.

  The drum type washing machine 80 shown in FIGS. 3 and 4 is different from the drum type washing machine 10 shown in FIGS. 1 and 2 in that the melting device 41 is not on the rear end face side of the outer tub 12 but below the outer tub 12. It is attached to the side. That is, the melting device 41 is attached to the lower side of the outer peripheral surface of the outer tub 12 so that its center is located in a vertical plane passing through the central axis 14 of the outer tub 12, and is parallel to the central axis 14 of the outer tub 12. It has a longitudinal shape in the front-rear direction. The melting device 41 includes a treatment tank 42 having a longitudinal shape in the oblique front-rear direction and an electrode pair 43 provided in the treatment tank 42. The electrode pair 43 includes a first electrode 44 and a second electrode 45, and is disposed to be opposed to the spacer 46 at a constant interval, for example, an interval of about 5 mm. Also in this embodiment, both the first electrode 44 and the second electrode 45 are made of aluminum. A water supply port 61 is formed in the treatment tank 42, and the water supply port 61 is connected to the fifth valve 71 through the water supply pipe 60. In this embodiment, the fifth valve 71 is a three-way valve whose opening direction can be switched.

A drainage port 62 is formed in the processing tank 42, and the drainage port 62 is provided with a water supply pipe 64 via a fourth valve 63. The water supply pipe 64 is a flexible pipe and communicates with the water storage tank 47.
Since the drum-type washing machine 80 is the same as the above-described configuration of the drum-type washing machine 10 except for the configuration described above, the same parts are denoted by the same reference numerals and description thereof is omitted here. In addition, 72 in FIG. 3 is a cooling water dropping pipe.

  The drum type washing machines 10 and 80 are so-called oblique drum type washing machines in which the lid 19 and the opening 17 are directed obliquely upward. In this type of drum-type washing machine, the opening 17 is designed to have a height that allows the user to easily put in and out the laundry, so that the outer tub 12 and the rotating drum tub 13 are also positioned upward in the housing 11. It is arranged diagonally. Therefore, a relatively large empty space is created below the outer tub 12 in the housing 11.

  In the drum type washing machine 10, the water storage tank 47 is attached by effectively using the empty space generated below the outer tub 12, and in the drum type washing machine 80, the empty space generated below the outer tub 12 is effectively used, A melting device 41 and a water storage tank 47 are attached. And the melting | dissolving apparatus 41 attached to the outer tank 12 increases the whole weight of the outer tank 12, and also displaces the gravity center downward. For this reason, when the rotating drum tub 13 rotates in the outer tub 12, especially when the dehydrating rotation is performed, even if rotational vibration occurs due to the uneven distribution of the stored laundry, the outer tub 12 can satisfactorily reduce the vibration. It can be absorbed.

On the other hand, the water storage tank 47 is fixed near the bottom surface of the housing 11, and the center of gravity of the entire housing 11 is lowered. If the center of gravity of the housing 11 is low, even if vibration occurs due to the rotation of the rotating drum tank 13 in the outer tank 12 disposed on the upper side, the entire housing 11 becomes unstable or shakes due to the vibration. Can be prevented.
Further, when the water storage tank 47 is attached below the housing 11, even if vibration occurs due to the rotation of the rotary drum tank 13, the vibration is not easily transmitted to the water storage tank 47 fixed below the housing 11. . That is, the water storage tank 47 hardly shakes. Therefore, when the dissolving liquid and the washing water are mixed in the water storage tank 47 and the dirt component is separated from the washing water by the aggregation and precipitation action, the precipitation separation is not hindered. That is, since the water storage tank 47 hardly sways, the accumulated washing water does not sway, and the sediment of the dirt component does not diffuse therein.

  In the above description, an example in which the water storage tank 47 is fixed below the housing 11 and the melting device 41 is fixed to the outer tub 12 has been introduced. However, it is not limited to such a mounting structure. The dissolving device 41 may be fixed to a place other than the outer tank 12 as long as the dissolving water can be introduced into the water storage tank 47 by gravity instead of the outer tank 12. For example, the melting device 41 may be fixed above the water storage tank 47. Or even if it is from the side of the water storage tank 47, as long as the dissolved water in the dissolving device 41 can be dropped into the water storage tank 47 as described above, it may be fixed to the side of the water storage tank 47. Good. Alternatively, the melting device 41 may be fixed to the housing 11.

Next, specific examples of the driving method of the drum type washing machine 10 or 80 (how to wash using the drum type washing machine 10 or 80) will be described below.
(First embodiment)
FIG. 5 is a process diagram for explaining the operation of the drum type washing machines 10, 80 according to the first embodiment. Next, the operation of the drum type washing machines 10, 80 will be described with reference to the process diagram of FIG.
(1) Washing process The user opens the lid 19, puts the laundry into the rotating drum tank 13, and closes the lid 19. In addition, a detergent is placed in the detergent container 34. When a start button (not shown) is pressed, the drum-type washing machines 10 and 80 start the following washing process.

  The first water supply pipe 33 is opened by the first valve 37, and cleaning water is supplied to the outer tub 12 through the main water supply pipe 33, the detergent container 34, the water supply pipe 36, and the water supply hole 35. At this time, the second valve 52 is closed, and cleaning water accumulates in the outer tank 12 and the rotating drum tank 13. After the predetermined amount of cleaning water is supplied, the first valve 37 is closed and the rotating drum tank 13 is rotated by the motor 26. Along with this rotation, the laundry in the rotary drum tank 13 is lifted by the baffle 25, dropped, and washed.

After the washing is finished, the second valve 52 is opened, the drain pipes 51a and 51b are communicated, and the washing water in the outer tub 12 is drained outside the machine. After draining the washing water, the rotary drum tank 13 is dewatered and rotated (high-speed rotation) by the motor 26, and the washing water contained in the laundry is dehydrated.
In the above-described washing process, the water supplied to the outer tub 12 may not be tap water, but the bath water pump 38 may be driven to supply the bath water.
(2) Rinsing 1 step The second valve 52 is closed, the first valve 37 is opened, and a predetermined amount of rinsing is performed in the outer tub 12 through the main water supply pipe 33, the detergent container 34, the water supply pipe 36 and the water supply hole 35. Water is supplied. Then, the rotating drum tub 13 is rotated by the motor 26, and the laundry in the rotating drum tub 13 is rinsed. After rinsing is completed, the second valve 52 is opened, and the drain pipe 51a and the branch pipe 53 are communicated. Thus, the wash water after rinsing in the outer tub 12 is stored in the water storage tank 47. At this time, the third valve 55 is closed.

After the rinsing water in the outer tub 12 is drained, the rotating drum tub 13 is dehydrated and rotated by the motor 26, and the rinsing water contained in the laundry is dehydrated. This water is also stored in the water storage tank 47.
Even in the above-described one rinsing step, the water supplied to the outer tub 12 may not be tap water, but the bath water pump 38 may be driven to supply the bath water.
(3) Purification process During the washing process or one rinse process, the drum-type washing machine 10 opens the first valve 37 and the drum-type washing machine 80 opens the fifth valve 71, and tap water is supplied to the water supply pipe 61. Through the treatment tank 42. At this time, the fourth valve 63 is closed. In the melting device 41, after a predetermined amount of tap water has accumulated in the treatment tank 42, power is applied to the electrode pair 43 by a power circuit (not shown). In this embodiment, a direct current of 1 to 100 V is applied to the electrode pair 43, whereby the aluminum electrode of the anode is dissolved and aluminum dissolved water in which aluminum ions are dissolved is generated. As in this embodiment, since the dissolving device 41 electrolyzes tap water, the water stored in the treatment tank 42 contains lint and dirt mixed during washing as in Japanese Patent No. 3014658. Not in. Therefore, there is no concern that the electrolysis performance of the electrode pair 43 is deteriorated by lint, dirt, or the like. The process of creating dissolved water is performed in parallel with the washing process or the rinsing process.

  After the rinsing water used in the rinsing process 1 is stored in the water storage tank 47 as the water to be purified, or together with the storage process, the fourth valve 63 is opened and dissolved water is supplied to the water storage tank 47 through the water supply path 64. Is supplied. The water to be purified may be stored after the dissolved water is first supplied to the water storage tank 47. In the water storage tank 47, the rinsing water and the dissolved water are mixed, whereby the soil components in the tin water are aggregated and precipitated by aluminum ions and the like contained in the dissolved water.

This phenomenon is shown as follows using an electrochemical reaction formula.
In the melting device 41, the following electrochemical reaction occurs around the anode (first electrode) 44.
Al → Al ³⁺ + 3e ⁻
Al ³⁺ + 3OH ⁻ → Al (OH) ₃ ↓
That is, the aluminum ions of the first electrode 44 that is the anode are eluted, and aluminum hydroxide that is an insoluble metal hydroxide is generated. Since the produced metal hydroxide (aluminum hydroxide) has a specific gravity greater than that of water, when it is mixed with rinse water in the water storage tank 47, it precipitates at the bottom of the water storage tank 47. The rinse water contains an organic substance (dirt) separated from the surfactant and the laundry, but generally the surfactant and the organic substance are charged. For this reason, it aggregates with the eluted aluminum ion and aluminum hydroxide, and will precipitate with aluminum hydroxide. In this way, the dirt component contained in the water in the water storage tank 47 can be separated.

A stirring blade may be provided in the water storage tank 47. When the stirring blade is provided, in the water storage tank 47, the water to be treated and the aluminum dissolved water after the rinsing step can be mixed and stirred efficiently. In addition, when a stirring blade is provided, stirring is sufficient for several minutes.
When the water to be treated and the aluminum dissolved water are mixed in the water storage tank 47, the coagulation purification starts, and after about 1 hour, the soil components coagulate and settle in the soil component separation region 49 of the water storage tank 47.

Therefore, the purified water in the water storage tank 47 from which the dirt component has been separated can be used for one rinsing step in the next washing. In addition, you may use for the washing | cleaning process instead of one rinsing process.
When the purified water in the water storage tank 47 is pumped for the next rinsing process, when the next rinsing process is completed, the washing water after the next rinsing process is completed is drained from the outer tank 12. Then, the second valve 52 is switched so that the drain pipe 51 a and the branch pipe 53 communicate with each other so that the cleaning water enters the water storage tank 47. At that time, the third valve 55 is opened. By doing so, the wash water after the completion of the next one rinsing process is discharged from the drainage port 54 through the drainage pipe 51b through the water storage tank 47 to the outside of the machine. Pour out the dirt components accumulated in Therefore, all of the dirt components in the water storage tank 47 are discharged, and the water storage tank 47 can be prepared in a clean state for storing the next washing water.

In addition, what is necessary is just to make it handle the dirt component discharged | emitted from the drain pipe 51b outside a machine with a filter etc., and to process as a waste material or garbage.
(4) Two rinsing steps In the rinsing two steps in the drum-type washing machines 10 and 80, the second valve 52 is closed and the first valve 37 is opened, and the main water supply pipe 33, the detergent container 34, the water supply pipe 36 and the water supply Tap water is supplied to the outer tub 12 through the holes 35. After supplying a predetermined amount of tap water, the first valve 37 is closed and the rotating drum tank 13 is rotated by the motor 26 for rinsing. After completion of the rinsing rotation, the second valve 52 is opened, and the rinsing water is drained out of the machine via the drain pipes 51a and 51b. Thereafter, the rotating drum tank 13 is dehydrated and rotated by the motor 26.

In this embodiment, the cleaning water used in the first rinsing process is stored in the water storage tank 47 and purified. However, the cleaning water used in the first rinsing process is drained, and the cleaning water used in the second rinsing process is stored in the water. It may be stored in the tank 47 and purified.
(5) Drying step After the completion of dehydration, a drying step is performed. In the drying process, the fan 67 and the heater 68 are turned on, and the air in the rotary drum tank 13 is circulated through the drying air passage 66. Further, the rotating drum tank 13 is dried and rotated by the motor 26. The air circulating around the drying air passage 66 is high-temperature air containing moisture. In order to cool this high-temperature air and remove moisture in the air by heat exchange, the fifth valve 71 is opened, and the drying air Tap water is supplied to the channel 66. By supplying tap water, the moist and hot air passing through the drying air passage 66 is cooled, and moisture in the air is condensed as water droplets by heat exchange. The supplied cooling tap water and condensed condensed water are stored in the water supply tank 47 through the water supply path 64.
(Second embodiment)
FIG. 6 is a process diagram for explaining the operation of the drum type washing machines 10, 80 according to the second embodiment. Next, the operation of the drum type washing machines 10, 80 will be described with reference to the process diagram of FIG.
(1) Washing process Since it is the same as that of the 1st example, explanation is omitted.
(2) Purification process 1 During execution of the washing process or before execution of the washing process, the bath water pump 38 is driven and the bath water is stored in the water storage tank 47 via the sixth valve 70 and the water supply pipe 69. In addition, the dissolved water generated in the dissolution apparatus 41 in the same procedure as the purification step of the first embodiment is mixed with the bath water in the water storage tank 47 to separate the soil components contained in the bath water. If the purification step 1 is completed by the end of the washing step in the above (1), the purified bath water can be used as a rinse water for the next rinsing step. Therefore, no extra time is required for the entire washing.

When the reserved operation is set, the purification 1 step may be performed before the washing step using the standby time of the reserved operation.
(3) Rinsing 1 Step The second valve 52 is closed, the pump 59 is driven, and the rinsing water in the water storage tank 47 purified in the purifying 1 step in the above (2) is the pumping port 57 and the pumping tube 58. And it is supplied to the outer tank 12 through the water supply hole 35 until it reaches a predetermined amount. Then, the same rinsing as in the first embodiment is performed, and then the second valve 52 is opened, and the rinsing water is drained out of the machine via the drain pipes 51a and 51b. Further, after draining, the rotating drum tank 13 is dehydrated and rotated by the motor 26.
(4) Rinsing 2 Steps Rinsing is performed in the same manner as the rinsing 1 step of the first embodiment, and the tap water supplied to the outer tub 12 as rinsing water is stored in the water storage tank 47 after the rinsing is completed. It is purified in two purification steps that follow.
(5) Purification process 2 The rinse water stored in the water storage tank 47 in the rinsing process 2 of (4) is purified by the same procedure as the purification process of the first embodiment, and the rinsing process 1 in the next washing is performed. Can be used for. In addition, you may use for the washing | cleaning process instead of one rinsing process.
(6) Drying process Since it is the same as that of the 1st example, explanation is omitted.
(Third embodiment)
FIG. 7 is a process diagram for explaining the operation of the drum type washing machines 10, 80 according to the third embodiment. Next, the operation of the drum type washing machines 10, 80 will be described with reference to the process diagram of FIG.
(1) Washing process Since it is the same as that of the 1st example, explanation is omitted.
(2) Rinse 1 process Since it is the same as the rinse process of a 1st Example, description is abbreviate | omitted. The rinse water after rinsing is stored in the water storage tank 47 and purified in the subsequent purification process.
(3) Purification step The rinse water in one rinse step is purified by the same procedure as the purification step of the first embodiment, and can be used for the subsequent two rinse steps.
(4) Rinse 2 process Since it is the same as the 1 rinse process in a 2nd Example, description is abbreviate | omitted.
(5) Rinsing 3 process Since it is the same as the 2 rinsing process in a 1st Example, description is abbreviate | omitted.
(6) Drying process Since it is the same as that of the 1st example, explanation is omitted.

In the embodiment described above, the description has been made on the assumption that the amount of water used for washing or rinsing in the drum type washing machine is about 30 liters. By the way, the amount of washing water used for washing or rinsing currently used in an actual drum-type washing machine is as small as about 25 liters. Therefore, the water storage tank 47 of the purification apparatus according to the present invention is a water tank of about 50 liters (the 50 liter water storage tank can be incorporated using the empty space below the frame of the drum type washing machine 10. There is a wash used in two rinse steps, not only the wash water used in one rinse step, but also the wash water used in one rinse step and the rinse water used in two rinse steps, for example. It is good also as a structure which reuses for the next washing | cleaning process and 1 rinse process or 1 rinse process, and 2 rinse processes by accumulating water and purifying the washing water. An example in that case will be described below.
(Fourth embodiment)
The washing process in the fourth embodiment is changed by increasing the water storage capacity of the water storage tank 47 to about 50 liters in the washing process in the first embodiment (FIG. 5). The operation of the drum type washing machines 10 and 80 including the water storage tank 47 having an increased water storage capacity will be described with reference to the process diagram of FIG.

(1) Washing process Since it is the same as that of the 1st example, explanation is omitted.
(2) Rinsing 1 process Since it is the same as that of the 1st rinse process of a 1st Example, description is abbreviate | omitted. The rinse water after rinsing is stored in the water storage tank 47.

(3) Two Rinsing Processes Rinsing is performed in the same manner as the two rinsing processes in the first embodiment, and the rinse water after the rinsing is completed is stored in the water storage tank 47.
(4) Purification process In the same procedure as the purification process of the first embodiment, the rinse water in the first rinsing process and the second rinsing process is purified and used for both the washing process and the first rinsing process in the next washing. Can do. Moreover, you may use for both the 1 rinse process and the 2 rinse processes.

In addition, when the purified water is used for the next one rinsing process, the water after rinsing is not drained, and is again sent to the purification process for (second time) reuse. Therefore, water can be saved by reusing rinse water.
(5) Drying process Since it is the same as that of the 1st example, explanation is omitted.
(Fifth embodiment)
The washing process in the fifth embodiment is a modification of the washing process in the second embodiment (FIG. 6) by increasing the water storage capacity of the water storage tank 47 to about 50 liters. The operation of the drum type washing machines 10 and 80 including the water storage tank 47 having an increased water storage capacity will be described with reference to the process diagram of FIG.

(1) Washing process Since it is the same as that of the 2nd example, explanation is omitted.
(2) Purification 1 process Since it is the same as that of the 2nd example, explanation is omitted.
(3) Rinsing 1 Process Rinsing is performed similarly to the 1st rinsing process of 2nd Example, and the rinse water after completion | finish of a rinse is stored in the water storage tank 47. FIG.

(4) Rinse 2 process Since it is the same as that of the 2nd rinse process of a 2nd Example, description is abbreviate | omitted. The rinse water after rinsing is stored in the water storage tank 47.
(4) Purification 2 step In the same procedure as the purification step of the second embodiment, the rinse water in the first rinse step and the second rinse step is purified and used for both the washing step and the first rinse step in the next washing. be able to. Moreover, you may use for both the 1 rinse process and the 2 rinse processes.

(5) Drying process Since it is the same as that of the 2nd example, explanation is omitted.
As described above, with the configuration as shown in the fourth and fifth embodiments, the amount of water used is halved compared to the current state, and a drum-type washing machine with a higher water-saving effect can be obtained.
The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

1 is a longitudinal sectional view of a drum type washing machine 10 according to an embodiment of the present invention. FIG. 2 is a front view of the drum-type washing machine 10 in which the internal components are partially shown by broken lines. It is a longitudinal cross-sectional view of the drum type washing machine 80 which concerns on other embodiment of this invention. It is a front view of drum type washing machine 80, and is a figure in which an internal component was partially shown with a dashed line. FIG. 5 is a process diagram for explaining the operation of the drum type washing machines 10, 80 according to the first embodiment. It is process drawing for demonstrating operation | movement by the 2nd Example of the drum-type washing machines 10 and 80. FIG. It is process drawing for demonstrating the operation | movement by the 3rd Example of the drum type washing machines 10 and 80. FIG. It is process drawing for demonstrating the operation | movement by the 4th Example of the drum-type washing machines 10 and 80 provided with the water storage tank 47 whose water storage capacity increased to about 50 liters. It is process drawing for demonstrating operation | movement by the 5th Example of the drum-type washing machines 10 and 80 provided with the water storage tank 47 whose water storage capacity increased to about 50 liters.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 80 Drum-type washing machine 12 Outer tank 13 Rotating drum tank 38 Bath water pump 41 Dissolving device 47 Water storage tank

Claims (12)

An outer tub for storing cleaning water;
A washing / dehydrating tub that is provided in the outer tub and stores and rotates laundry;
A cleaning device that includes a water storage tank that selectively collects only the rinse water after rinsing out of the wash water drained from the outer tank, and purifies the accumulated wash water for reuse,
A washing machine comprising:   The washing machine according to claim 1, wherein the water storage tank has a capacity capable of storing washing water after rinsing twice.   2. The purification apparatus according to claim 1, further comprising a structure in which dissolved water in which metal ions are dissolved is mixed with cleaning water stored in a water storage tank so as to coagulate and remove dirt components in the stored cleaning water. Or the washing machine of 2. A method for driving a washing machine according to claim 2,
A method for driving a washing machine, characterized in that the water purified by the purification device is used for washing and rinsing in the next washing step. A method for driving a washing machine according to claim 2,
A method of driving a washing machine, wherein water purified by the purification device is used for a first rinse and a second rinse in a next washing step. An outer tub for storing cleaning water;
A washing / dehydrating tub that is provided in the outer tub and stores and rotates laundry;
A purification device including a water reservoir for storing water and purifying the stored water for use as washing water;
Means for supplying bath water to the reservoir;
A washing machine comprising:   The washing machine according to claim 6, wherein the water tank has a capacity capable of storing washing water for two times.   The purification device includes a configuration in which dissolved water in which metal ions are dissolved is mixed with cleaning water stored in a water storage tank so as to aggregate and remove dirt components in the stored cleaning water. Or the washing machine of 7. A method for driving a washing machine according to any one of claims 6 to 8,
The wash water used for washing uses tap water or bath water,
The washing water used for the first rinsing uses bath water purified by the purification device,
A method for driving a washing machine, comprising: purifying bath water used for a first rinse using at least a washing time. A method for driving a washing machine according to any one of claims 6 to 8,
When it is determined that the next washing process will be completed at the time determined by the reserved operation, the bath water in the purification device is purified using at least the time waiting by the reserved operation. A method for driving a washing machine. Store the water after it has been used for at least two rinses in a water tank,
Purify the water stored in the water tank,
A method for reusing rinse wastewater, characterized in that the purified water is reused for washing and rinsing in the next wash, or two rinses.   The rinse water according to claim 11, wherein the purification is performed by mixing dissolved water in which metal ions are dissolved in water stored in a water storage tank, and aggregating and removing dirt components in the stored water. How to reuse

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