JP2017196270A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve excellent washability while being capable of using fine bubble water.SOLUTION: A washing machine of an embodiment comprises a water tank, a washing tank provided rotatably in the water tank, a water supply device for supplying water to the inside of the washing tank via a water supply path, a fine bubble generation device provided in the water supply path, for generating fine bubbles and an ultrasonic generation device capable of irradiating washing water with ultrasonic. At least in a washing process, the ultrasonic generation device irradiates the washing water containing the fine bubbles generated by the fine bubble generation device with ultrasonic.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a washing machine.

  In recent years, for example, fine bubbles (ultra fine bubbles (nano bubbles) or micro bubbles) having a diameter of several tens to several hundreds of nanometers formed in water have attracted attention, and fine bubble water containing a large number of fine bubbles is washed. It is considered to be used for applications. For example, Patent Document 1 discloses a technique that uses fine bubble water in which fine bubbles are contained in a liquid such as pure water when cleaning a display substrate.

JP 2010-73848 A

It is conceivable to use fine bubble water for a washing machine for washing clothes. However, when applied to a washing machine, it is desired to obtain excellent detergency.
Therefore, there is provided a washing machine that can use fine bubble water and can obtain excellent cleaning properties.

  The washing machine of the embodiment includes a water tub, a washing tub rotatably provided in the water tub, a water supply device that supplies water into the washing tub through a water supply path, and a fine that is provided in the water supply path and generates fine bubbles. A bubble generator and an ultrasonic generator capable of irradiating the washing water with ultrasonic waves, and generating ultrasonic waves in the wash water containing fine bubbles generated by the fine bubble generator at least in a washing process Ultrasonic waves are irradiated by the device.

  In addition, the fine bubble in the embodiment is a concept including a micro bubble having a diameter of about 1 μm to several hundred μm and an ultra fine bubble having a diameter of about 50 nm to 1 μm.

1 is a longitudinal front view schematically showing a configuration of a washing machine according to the first embodiment. Longitudinal sectional view schematically showing the configuration of the second water supply valve part The longitudinal front view which shows 2nd Embodiment and shows the structure of a washing machine roughly The front view which shows 3rd Embodiment and shows the structure of a washing machine roughly The longitudinal front view which shows 4th Embodiment and shows the structure of a washing machine roughly The longitudinal front view which shows 5th Embodiment and shows the structure of a washing machine roughly The longitudinal cross-sectional view which shows 6th Embodiment and shows the structure of a 2nd water supply valve part roughly

(1) 1st Embodiment Hereinafter, 1st Embodiment applied to what is called a vertical axis | shaft type washing machine is described, referring FIG.1 and FIG.2. FIG. 1 schematically shows an overall configuration of a washing machine 1 according to the present embodiment. The washing machine 1 is formed of, for example, a synthetic resin on an upper portion of an outer box 2 configured as a rectangular box as a whole from a steel plate. A top cover 3 made of metal is provided. A water tub 4 capable of storing washing water is provided in the outer box 2 while being elastically suspended and supported by an elastic suspension mechanism (not shown) having a well-known configuration. Although not shown, a drain port is formed at the bottom of the water tank 4 and a drain channel provided with a drain valve is connected to the drain port.

  In the water tub 4, a vertical washing tub 5 also serving as a dewatering tub is rotatably provided. The washing tub 5 has a bottomed cylindrical shape, and a plurality of dewatering holes (not shown) are formed in the peripheral wall portion. For example, a liquid-filled rotary balancer 6 is attached to the upper end of the washing tub 5. A pulsator 7 is disposed on the inner bottom of the washing tub 5. Clothes which are not shown in the figure are accommodated in the washing tub 5 and a washing operation consisting of processes such as washing, rinsing and dehydration of clothes is performed.

  In the present embodiment, a circular concave area in which the pulsator 7 is disposed is provided at the inner bottom of the washing tub 5, and a pump chamber 8 is formed between the pulsator 7 and the inside. At this time, the pulsator 7 has a disk shape having a convex portion 7a for generating a rotating water flow on the surface (upper surface), and a plurality of water passage holes (not shown) so as to penetrate up and down the surface of the disk. Is formed. A plurality of pump blades 9 are integrally provided on the back surface of the pulsator 7. The pump blade 9 has a thin plate shape extending in the radial direction (radial direction) from the center. Outflow ports 8a (only two are shown) are provided at three locations on the outer periphery of the pump chamber 8 at an angle of 120 degrees apart.

  Further, on the side wall portion of the washing tub 5, three water passages 10 (only two are shown) for pumping washing water from the pump chamber 8 are provided so as to extend upward from the respective outlets 8 a. It has been. These water passages 10 have discharge ports 10 a below the upper rotary balancer 6 in the washing tub 5. As a result, the washing water in the washing tub 5 (fine bubble water in which the detergent is dissolved or water for rinsing, which will be described later) is transferred to It discharges toward the outer peripheral direction from one outflow port 8a. Further, the washing water rises (pumps) in the water passage 10 and is discharged (sprinkled) into the washing tub 5 from the discharge port 10a.

  A drive mechanism 11 having a well-known configuration is disposed on the outer bottom of the water tank 4. Although detailed illustration and description are omitted, the drive mechanism 11 includes a washing machine motor including, for example, an outer rotor type DC three-phase brushless motor, and the driving force of the washing machine motor is selected by the pulsator 7 or the washing tub 5. A clutch mechanism or the like is provided. The washing machine motor and the clutch mechanism are controlled by a control device (not shown). When washing and rinsing, the washing tub 5 is fixed (stopped), and the driving force of the washing machine motor is transmitted to the pulsator 7 to slow down the pulsator 7. Directly and reversely drive with. Further, at the time of dehydration rinsing, dehydration, etc., the clutch mechanism transmits the driving force of the washing machine motor to the washing tub 5 and rotationally drives the washing tub 5 (and the pulsator 7) in one direction at a high speed. ing.

  The top cover 3 is provided with a water supply device 12 for supplying water into the water tub 4 (washing tub 5). In the present embodiment, the water supply device 12 includes a water supply path 13, three water supply valves described later, and the like. The water supply path 13 includes a hose connection port 14 connected to a water supply source such as a water supply, a first path 15, a second path 16, a third path 17, and a water injection case extending from the hose connection port 14. 18 and a water injection port 19 which is an outlet of the water injection case 18. In the water injection case 18, there are provided a detergent container 18 a for storing detergent and a softener container 18 b for storing softener and the like. The detergent container 18a of the water injection case 18 functions as a detergent charging part.

  The first path 15 and the second path 16 are connected to the detergent container 18a, and the third path 17 is connected to the softener container 18b. The first path 15 is provided with a first first water supply valve 20, the second path 16 is provided with a second water supply valve 21 for fine bubbles, and the third path 17 has a softener. A third water supply valve 22 is provided. These water supply valves 20, 21, and 22 are open / close valves that open and close electromagnetically as shown in FIG. 2 described later, and are controlled by the control device.

  Thus, when the main first water supply valve 20 is opened, water from the water supply source flows through the first path 15 to the detergent accommodating portion 18a of the water injection case 18, and the detergent is accommodated. Is discharged from the water inlet 19 while dissolving the detergent, and poured into the water tank 4. In addition, when the fine water supply second water supply valve 21 is opened, water from the water supply source flows through the second path 16 to the detergent storage portion 18a of the water injection case 18, and the detergent is stored. It is discharged from the water injection port 19 while dissolving the detergent, and poured into the water tank 4.

  Furthermore, when the 3rd water supply valve 22 for softening agents is opened, the water from a water supply source flows into the softening agent accommodating part 18b of the water pouring case 18 through the 3rd path 17, and the softening agent is accommodated Is discharged from the water injection port 19 while dissolving the softening agent, and injected into the water tank 4. Although not shown, the top cover 3 is also provided with an entrance / exit for clothing, a lid for opening / closing the entrance / exit, an operation panel, and the like.

  By the way, in this embodiment, as the fine bubble generating device to be described later, it is incorporated into the second passage 16 portion of the feed water passage 13, in this case, the outlet portion downstream of the second feed valve 21. A bubble generating unit 23 is provided.

  In addition, in this embodiment, an ultrasonic generator 24 for irradiating the washing water in the water tub 4 with ultrasonic waves to vibrate ultrasonically is provided. The ultrasonic generator 24 has a well-known configuration including an ultrasonic transducer that vibrates ultrasonically with a piezoelectric element and a power feeding circuit that applies a high-frequency voltage to the piezoelectric element, and is the bottom of the water tank 4. Is provided below. The ultrasonic generator 24 is controlled by the control device and outputs, for example, a 15 MHz ultrasonic wave.

  Here, the bubble generating unit 23 will be described. FIG. 2 shows the second water supply valve 21 portion. The second water supply valve 21 has a hollow valve chamber 21b that connects an inlet portion 25 located on the right side of the body 21a in the drawing and an outlet portion 26 located on the lower side in the drawing, and the inside of the valve chamber 21b. Thus, a diaphragm valve 27 that opens and closes the outlet portion 26 by being brought into and out of contact with the valve seat 26a on the outlet portion 26 side, and a valve drive mechanism 28 including a solenoid that drives the diaphragm valve 27 are provided. The first water supply valve 20 and the third water supply valve 22 also have the same configuration as the second water supply valve 21 with respect to the basic configuration described above.

  In the present embodiment, a bubble generating unit 23 using the principle of the venturi pipe is provided in a form incorporated in the body 21a, located at the outlet portion 26 portion of the second water supply valve 21. The bubble generating unit 23 is formed in, for example, a cylindrical shape having a vertical direction in the figure from a synthetic resin, and a flow path 29 extending in the vertical direction in the figure is formed. The flow path 29 is opened at both upper and lower end faces of the bubble generating unit 23, and the opening on the upper end side is an inflow port 29a in the figure and the opening on the lower end side is an outflow port 29b in the figure.

  A narrowed portion 29 c having the smallest flow path cross-sectional area is formed in the middle portion of the flow path 29. The flow path 29 is formed in a tapered shape from the inlet 29a to the throttle portion 29c, and the flow path cross-sectional area gradually decreases, and the flow path from the throttle portion 29c to the outlet 29b gradually increases. It is configured in a taper shape that increases. Further, the bubble generating unit 23 is provided with four projecting portions 30 (only two are shown) so as to further narrow the flow path of the throttle portion 29c. These protrusions 30 are provided so as to protrude inward from the outer peripheral side of the narrowed portion 29c at intervals of 90 degrees, and thus the cross section of the narrowed portion 29c is a cross-shaped (x-shaped) slit shape.

  In such a bubble generation unit 23, when water flows into the flow path 29 from the inflow port 29a by opening the second water supply valve 21, the cross-sectional area of the flow path is reduced to the throttle portion 29c. Due to the so-called Venturi effect, the flow rate is increased and the pressure is rapidly reduced. Thereby, a large amount of air dissolved in water can be deposited as fine bubbles.

  The bubble generating unit 23 of this embodiment can generate a large amount of fine bubbles including ultrafine bubbles having a diameter of about 50 nm to 1 μm and microbubbles having a diameter of about 1 μm to several hundred μm. By passing through the bubble generating unit 23 in this way, water containing a large amount of fine bubbles (hereinafter referred to as fine bubble water) flows out from the outlet 29b and passes through the second path 16 to the water injection case 18 (detergent). It flows into the storage part 18 a), and the detergent is poured into the water tank 4 from the water injection port 19. The bubble generating unit 23 is described in detail in Japanese Patent Application No. 2014-129097 related to the earlier application of the present applicant.

  At this time, as will be described in the following description of the operation, the control device opens the second water supply valve 21 at the time of water supply at the start of the washing process mainly by the software configuration (the first water supply valve 20 and the third water supply valve). The water supply valve 2 is closed), and fine bubble water is supplied through the bubble generating unit 23. Thus, the washing water in which the detergent is dissolved in the fine bubble water is stored in the water tank 4 (washing tank 5), and the washing process is executed. In the washing process, the control device drives the ultrasonic generator 24 to irradiate the washing water with ultrasonic waves. In the rinsing process after the washing process, the first water supply valve 20 is used to supply water. In the final rinsing process, the third water supply valve 22 is opened, and the water in which the softener is dissolved is supplied. It is supplied into the water tank 4.

  Next, the operation of the washing machine 1 configured as described above will be described. In starting the washing operation, the user stores clothes to be washed in the washing tub 5 and stores a required amount of detergent in the detergent container 18a of the water injection case 18, and then uses the operation panel. Perform a start operation. Then, the control device automatically executes a washing operation including a process such as washing, rinsing, and dehydration. As described above, first, when supplying water at the start of the washing process, the second water supply valve 21 is opened. Then, water from a water supply source such as water supply is supplied to the detergent container 18 a of the water injection case 18 through the second path 16.

  By opening the second water supply valve 21, the water passes through the bubble generating unit 23, and at that time, a large amount of fine bubbles are generated and supplied as fine bubble water to the water injection case 18. And fine bubble water flows, melt | dissolving the detergent of the detergent accommodating part 18a, and is poured into the water tank 4 from the water inlet 19. When the water supply at a predetermined water level in the water tank 4 is performed, the second water supply valve 21 is closed and the washing process is started. In this washing process, the pulsator 7 is driven to rotate forward and reverse, and the ultrasonic generator 24 is operated. The operation of the ultrasonic generator 24 irradiates the washing water in the water tub 4, particularly the washing water in the pump chamber 8 with ultrasonic waves.

  As the pulsator 7 rotates forward and backward, a rotating water flow is generated in the washing tub 5 and the garment rotates in the washing water, and the garment receives frictional force due to contact with the convex portion 7a. Further, the washing water in the pump chamber 8 is raised (pumped) through the water passage 10 by the action of the pump blades 9 of the pulsator 7, discharged from the discharge port 10a into the washing tub 5, and poured into the clothing from above. When the washing process for a predetermined time is completed, the pulsator 7 and the ultrasonic generator 24 are stopped, and after the water tank 4 is drained, a rinsing or dehydration process is performed. In these rinsing and dehydration processes, the second water supply valve 21 is not used, and the ultrasonic generator 24 is not operated.

  Here, the fine bubbles cause a Brownian motion that causes irregular motion in the liquid, for example, in water, and the speed thereof is higher than the flying speed, so that the fine bubbles have a property of staying in the liquid for a long time. And since the surface of the fine bubble is negatively charged, it adsorbs while dispersing the detergent component (surfactant) contained in the washing water while improving the dispersibility of the detergent. Play a role. Fine bubbles repel each other and do not combine. In addition, the fine bubbles that have adsorbed the detergent can easily enter the gaps (for example, 10 μm) between the fibers of the clothes and efficiently carry the detergent into the clothes to remove the dirt. Suppresses reattachment to the surface.

  In this case, since the detergent is put into the fine bubble water after it is made into fine bubble water by the bubble generating unit 23, the detergent is effectively put into the wash water with a high fine bubble concentration. Can be dispersed. On the other hand, when fine bubbles are generated after the detergent is added to the water, the washing water becomes excessively foamed and fine fine bubbles cannot be generated sufficiently. There is a risk of lowering.

  With the fine bubble function as described above, an excellent cleaning action can be obtained by performing a washing process using washing water obtained by dissolving a detergent in fine bubble water containing countless fine bubbles. In addition, in the washing process, the ultrasonic generator 24 irradiates the washing water with ultrasonic waves of, for example, 15 MHz, so that fine bubbles in the washing water are repelled, and is generated at the time of the burst. Energy (shock wave) peels off dirt from clothes, and further acts to disperse the detergent component finely and act on the dirt.

  At the same time, new fine bubbles can be generated in the wash water by cavitation using ultrasonic waves, ensuring the amount of fine bubbles contained in the wash water, and suppressing the deterioration of cleanability caused by the decrease in fine bubbles. can do. At this time, the washing water irradiated with ultrasonic waves in the pump chamber 8 is discharged from the upper part of the water tank 4 through the water passage 10. Fine bubble water irradiated with ultrasonic waves can also be applied to the clothing present in the upper part of the washing tub 5, which is more effective.

  As described above, according to the present embodiment, the washing process can be performed using fine bubble water, and the ability to remove dirt from the fibers of clothing as compared to the case using simply fine bubble water. Can be further improved, and an excellent detergency can be obtained.

  In particular, in this embodiment, since the ultrasonic generator 24 is provided at the bottom of the water tank 4, even when the water level of the washing water in the water tank 4 is low, it is possible to reliably irradiate ultrasonic waves. The synergistic effect with the mechanical power of the pulsator 7 can enhance the cleaning performance. Further, as a device for generating fine bubbles, a compact bubble generating unit 23 is adopted, and the bubble generating unit 23 is provided on the downstream side of the second water supply valve 21 in the water supply device 12. The advantage that the apparatus for generating bubbles can be arranged compactly with a high degree of freedom can also be obtained.

(2) Second and Third Embodiments FIG. 3 schematically shows the configuration of a washing machine 41 according to the second embodiment. In each embodiment described below, the same parts as those in the first embodiment are denoted by the same reference numerals, and a new description is omitted, and differences from the first embodiment will be described. . The washing machine 41 of the second embodiment is different from the first embodiment in the configuration of the water supply device 42 provided in the top cover 3 and the configuration of the detergent charging unit 43.

  That is, the water supply device 42 also has a hose connection port 14 connected to a water supply source such as a water supply, a first path 15, a second path 16, and a third path extending from the hose connection port 14 in three branches. A water supply path 13 having 17 is provided. The first path 15 is provided with a first first water supply valve 20, the second path 16 is provided with a second water supply valve 21 for fine bubbles, and the third path 17 is provided with a softener. A third water supply valve 22 is provided. The first path 15 is directly connected to the water inlet 19, and the third path 17 is connected to the water inlet 19 via the softener housing case 44.

  On the other hand, the exit portion of the second path 16 is disposed above the gap between the water tub 4 and the washing tub 5. At the same time, a bubble generating unit 23 as a fine bubble generating device is provided in the middle of the second path 16 (on the downstream side of the second water supply valve 21). And in this embodiment, the tubular detergent supply part 43 extended in the up-down direction and opened in the up-and-down both ends is provided in the inner wall part of the washing tub 5, and the mouth part of the upper end is made into the detergent input port 43a. . An ultrasonic generator 24 is provided at the bottom of the water tank 4.

  In the second embodiment, when performing the washing operation, the user inputs a required amount of detergent from the detergent insertion port 43a. Then, the detergent passes through the detergent supply unit 43 and is stored at the bottom of the washing tub 5 without being in contact with clothes. When the water supply during the washing process is started, the second water supply valve 21 is opened, and the water passing through the second path 16 passes through the bubble generating unit 23, and at that time, a large amount of fine bubbles are generated and fine bubble water is generated. It becomes. The fine bubble water is poured into the water tank 4 from the outlet of the second path 16, and the detergent at the bottom of the water tank 4 dissolves to become washing water. When the washing process is started, the ultrasonic generator 24 irradiates the washing water in the water tub 4 with ultrasonic waves.

  Also in the second embodiment, in the washing process, the washing water containing fine bubbles generated by the bubble generation unit 23 is irradiated with ultrasonic waves by the ultrasonic generator 24. Excellent effects similar to those of the first embodiment, such as those that can be used, can further enhance the ability to remove dirt from the fibers of clothing, and can obtain excellent cleaning properties. Play.

  FIG. 4 shows a third embodiment. The difference between the washing machine 51 according to the third embodiment and the first embodiment is that the ultrasonic generator 24 is not located below the pump chamber 8 in the bottom of the water tank 4 but on the side wall of the water tank 4. It is the structure provided in. Even in such a configuration, fine bubble water can be used by irradiating the washing water containing fine bubbles generated by the bubble generating unit 23 with ultrasonic waves by the ultrasonic generator 24 in the washing process. Therefore, it is possible to further enhance the ability of removing dirt from the fibers of clothing, and to obtain an excellent effect of obtaining excellent cleaning properties.

(3) Fourth to Sixth Embodiments and Other Embodiments FIG. 5 shows a configuration of a washing machine 61 according to the fourth embodiment. The washing machine 61 of the fourth embodiment is different from the first embodiment in that the washing water at the bottom of the water tub 4 is sucked into the outside of the water tub 4, and the washing tub 5 is introduced into the washing tub 5 from the top of the water tub 4. This is in the point of providing a tubular circulation channel 62 for supplying (water injection). In addition, with the provision of the circulating water passage 62, a pulsator 65 having no pump blade 9 is employed, and the pump chamber 8 and the water passage 10 are omitted.

  The circulation water channel 62 is connected to the outer bottom portion of the water tub 4 at the suction side end, extends sideways, then extends upward outside the water tub 4, and the upper end on the discharge side is disposed above the washing tub 5. Has been. A circulation pump 63 for circulating the wash water is provided in the middle of the circulation water channel 62, and an ultrasonic generator 64 is provided on the upstream side of the circulation pump 63.

  In this configuration, the washing water in which the detergent is dissolved in the fine bubble water is supplied into the water tank, and when the washing process is started, the circulation pump 63 is driven, so that the washing water in the water tank 4 is supplied to the water tank 4. Circulation is performed by sucking into the circulating water channel 62 from the bottom, transporting the circulating water channel 62 to the upper part of the water tank 4, and pouring water into the washing tank 5 from above. At that time, the washing water passes through the ultrasonic generator 64 so that the washing water is irradiated with ultrasonic waves.

  According to such 4th Embodiment, since it was set as the structure which irradiates an ultrasonic wave with the ultrasonic generator 64 to the washing water containing the fine bubble generated by the bubble generation unit 23 in the washing process, The ability to remove dirt from clothing fibers can be further enhanced, and excellent cleaning properties can be obtained. There is an effect. In particular, in this embodiment, by irradiating the washing water when passing through the circulation channel 62 with ultrasonic waves, the fine bubble water irradiated with ultrasonic waves is also applied to the clothes present on the upper part of the water tub 4 (washing tub 5). Can be more effective.

  FIG. 6 shows the configuration of a washing machine 71 according to the fifth embodiment. The difference from the washing machine 61 of the fourth embodiment is that a circulating water channel 62 is provided, and an ultrasonic wave is generated. The device 72 is provided on the outlet side (downstream side) of the circulation pump 63 in the circulation water channel 62. According to this, an effect equivalent to that of the fourth embodiment can be obtained. In the case where the fine bubble water irradiated with ultrasonic waves passes through the circulation pump 63, there is a possibility that the circulation pump 63 may be adversely affected. Fine bubble water can be supplied from the upper part of the water tank 4 (washing tub 5) through the circulation water channel 62.

  FIG. 7 shows a sixth embodiment, and the sixth embodiment is different from the first embodiment in the configuration of the second water supply valve 81 portion. That is, in this embodiment, the bubble generating unit 82 as a fine bubble generating device is incorporated in the inlet portion 83 portion of the body 81 a of the second water supply valve 81. Similarly to the second water supply valve 21 of the first embodiment, the second water supply valve 81 is a hollow connecting the inlet portion 83 located on the right side in the drawing of the body 21a and the outlet portion 26 located on the lower side in the drawing. And a diaphragm valve 27 that opens and closes the outlet portion 26 by making contact with and away from the valve seat 26a on the outlet portion 26 side in the valve chamber 21b, a solenoid that drives the diaphragm valve 27, and the like The valve drive mechanism 28 is provided.

  The bubble generation unit 82 uses the principle of the venturi tube similarly to the bubble generation unit 23 of the first embodiment, and also extends from the right end side inlet 84a to the left end outlet 84b in the drawing. A flow path 84 is formed, and a narrowed portion 84 c having the smallest flow path cross-sectional area is formed at an intermediate portion of the flow path 84. The flow path 84 is formed in a tapered shape in which the flow path cross-sectional area gradually decreases from the inlet 84a to the throttle part 84c, and the flow path cross-sectional area gradually increases from the throttle part 84c to the outlet 84b. It is configured in a taper shape that increases. Four projecting portions 85 (only two are shown) are provided so as to further narrow the flow path of the throttle portion 84c. A valve body 86 for adjusting the flow path of the inlet 84 a is provided outside the inlet 84 a of the bubble generation unit 82.

  Even in such a configuration, at the time of water supply at the start of the washing process, the second water supply valve 81 is opened, so that the water dissolved in the water by flowing in the flow path 84 becomes a large amount as fine bubbles. Fine bubble water can be supplied into the water tank 4 (washing tub 5) through the bubble generating unit 82. Also in this case, the bubble generating unit 82 can be arranged in a compact manner.

  It should be noted that the present invention is not limited to the above-described embodiments and is not shown in the drawings, but for example, the following expansions and modifications are possible. That is, although the water supply valve is provided in each of the plurality of water supply paths, the switching between the first path and the second path may be performed by one switching valve. Various changes can be made to the configuration and location of the fine bubble generating device. Fine bubble water may be used in the rinsing process in addition to the washing process.

  Other than the vertical type washing machine, it can be applied to all types of washing machines such as drum type washing machines and two-tank type washing machines. It can also be applied to a washing machine of a type that stores water only in the inner washing tub, and further, the configuration and location of the ultrasonic generator, the configuration of the detergent charging unit, the overall configuration of the water supply device, etc. Various modifications are possible, and the present invention can be implemented with appropriate modifications within the scope not departing from the gist.

  In the drawings, 1, 41, 51, 61 and 71 are washing machines, 4 is a water tub, 5 is a washing tub, 7 and 65 are pulsators, 8 is a pump chamber, 9 is a pump blade, 10 is a water passage, and 12 and 42 are A water supply device, 13 is a water supply path, 18a is a detergent container (detergent input unit), 21 and 81 are second water supply valves, 23 and 82 are bubble generation units (fine bubble generators), and 24, 64 and 72 are ultrasonic waves. A generating device, 43 is a detergent charging unit, 62 is a circulation channel, and 63 is a circulation pump.

Claims (9)

A tank,
A water tank rotatably provided in the water tank;
A water supply device for supplying water into the washing tub through a water supply path;
A fine bubble generator provided in the water supply path to generate fine bubbles;
An ultrasonic generator capable of irradiating the washing water with ultrasonic waves,
A washing machine for irradiating washing water containing fine bubbles generated by the fine bubble generating device with ultrasonic waves by the ultrasonic generating device at least in a washing process.   The washing machine according to claim 1, wherein the water tank is capable of storing washing water, and the ultrasonic generator is provided at a bottom of the water tank. At the bottom of the washing tub, a pulsator having pump blades is provided to constitute a pump chamber, and a water passage for pumping up and discharging the washing water of the pump chamber to the upper portion of the washing tub is provided,
The washing machine according to claim 2, wherein the ultrasonic generator is provided below the pump chamber. A circulation water channel for sucking the wash water in the bottom of the water tank and supplying it from the top of the water tank, and a circulation pump for circulating the inside of the supply path,
The washing machine according to claim 1, wherein the ultrasonic generator is provided in the circulation channel.   The washing machine according to claim 4, wherein the ultrasonic generator is provided on an outlet side of the circulation pump in the circulation channel. Provided with a detergent charging part for charging detergent into the washing tub,
6. The detergent according to claim 1, wherein the detergent charging unit is configured such that after the washing water is made into fine bubble water by the fine bubble generator, the detergent is poured into the fine bubble water. The washing machine described. The detergent charging unit is configured to supply a detergent in the middle of the water supply path,
The said fine bubble generator is a washing machine of Claim 6 provided in the upstream rather than the said detergent injection | throwing-in part in the said water supply path. The water supply device is provided with a water supply valve that opens and closes the water supply path,
The said fine bubble generator is a washing machine as described in any one of Claim 1 to 7 provided in the downstream from the said water supply valve.   The washing machine according to any one of claims 1 to 8, wherein the fine bubble generating device is provided in the water supply device.

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