KR100336000B1 - Washing Machine - Google Patents

Abstract

Bubble generating means 20 for supplying bubbles to the wash water in the washing tanks 2 and 5, and bubble micronization means 6 and 29 for miniaturizing the bubbles supplied to the wash water by the bubble generating means 20; Washing machine. The bubble micronizing means is, for example, an inner blade 29 provided on the lower surface of the rotary blade 6 disposed inside the washing tanks 2 and 5.

Description

Washing Machine

The present invention relates to a washing machine, and more particularly, to a washing machine having a bubble generating device for generating bubbles in a washing tank during washing or rinsing.

In addition to the water generated in the washing water in the washing tank by the rotation of the pulsator at the time of washing or rinsing, a washing machine which sends a large amount of bubbles to the washing water and washes it has been known in the past (for example, JP-A-95-A). 47188). In such a washing machine, ultrasonic waves are generated when the bubbles rupture in contact with the laundry, and the fine vibration promotes peeling of the contaminant adhering to the laundry, so that high cleaning performance is obtained as compared with the case where no bubbles are added. In addition, since the air bubbles enter between the laundry and the other laundry, a buffer action is performed to prevent excessive friction, thereby reducing cloth damage. In addition, since the bubble acts to float the laundry, the laundry does not stay at the bottom of the washing tank, and the effect of preventing damage to the cloth due to friction between the pulsator and the laundry can be expected.

However, the washing machine which sends the bubble mentioned above and wash | cleans has a subject as shown below.

First, when the size of the bubble sent to the washing water becomes somewhat large, the bubble may not rupture even when it comes into contact with the laundry, and may be filled under the laundry. In such a case, only the laundry rises due to the bubble, and a problem arises in that the cleaning effect by the bubble is not improved.

In addition, when the bubble is large, bubbles are less likely to spread evenly to every corner of the laundry than small bubbles, and thus the cleaning effect may not be improved.

Second, in the washing machine configured to discharge the air sent out by the air pump from the photo port opening provided in the pulsator as bubbles in the washing and dewatering tank, when the pulsator performs the rotational movement, the air bubbles collected inside the pulsator Centrifugal force acts, and the centrifugal force biases and distributes bubbles to the outer peripheral side of the pulsator.

Therefore, since the number of bubbles generated in the bubble port openings located on the outer circumferential side of the pulsator increases compared to the number of bubbles generated in the bubble port openings located near the center of the pulsator, the bubbles in the washing and dewatering tank There is a bias in the distribution, causing a problem that the bubble supplied to the laundry becomes uniform.

Third, in the so-called fully automatic washing machine, in which the washing and dehydrating tank freely rotated is supported in the outer tank, bubbles are supplied to the washing and dewatering tank, and the bubble outlet is placed at the bottom of the outer tank (between the outer bottom of the washing and dehydrating tank and the bottom in the outer tank). It is conventionally adopted to form a through hole for passing bubbles through the bottom and pulsator of the washing and dehydrating tank, and to supply bubbles supplied from the bubble outlet to the washing and dehydrating tank through the through holes. It is.

However, there are cases where the advancing direction of the bubble supplied from the bubble outlet is not easily passed through the through hole provided in the outer tank.

In this case, the bubble supplied from the blowout port moves along the outer bottom of the washing and dewatering tank and moves out of the washing and dewatering tank (the space between the washing and dewatering tank and the outer tank), causing a problem that bubbles are not supplied into the washing and dewatering tank. .

Fourth, the bubble outlet is provided at a position lower than the bottom surface of the washing and dewatering tank on the side of the outer tub, and is connected to the air pump via a supply pipe on the outer side of the outer tub. Therefore, when the air pump is stopped, washing water or rinsing water enters the supply pipe, so that dirt or dissolved detergent, which has been separated from the laundry contained in the washing water (rinsing water), is deposited or stuck in the supply pipe. In some cases, there is a problem that the supply pipe is clogged, which causes problems in bubble generation.

Fifth, the air pump is installed in a place away from the outer tank (for example, in the upper surface plate located at the top of the outer tank), one end of the supply pipe is connected to the discharge side of the air pump, and the other end of the supply pipe is the bottom of the outer tank. It extends to the bubble outlet located at and is connected. Therefore, when the supply pipe is easily bent due to the vibration of the outer shell during the operation of the device, and the supply pipe is bent severely, the passage in the supply pipe is pressed to reduce or cut off the air supply from the air pump, and the bubble supply to the wash water is good. There is a problem that is not implemented.

Sixth, the air pump is disposed in the upper plate of the case, and the air discharge side of the air pump is connected to the bubble outlet of the outer tank bottom through the supply pipe. Therefore, since the supply pipe reaches the bottom of the outer tub, when the apparatus is manufactured, the supply pipe cannot be easily connected to the outer tub bottom after assembling the outer tub in the case.

The 1st object of this invention is to provide the washing machine which can implement bubble supply satisfactorily.

Moreover, the 2nd object of this invention is to provide the washing machine which can improve the washing | cleaning effect by a bubble, or a rinsing effect.

The 3rd object of this invention is to provide the washing machine which can make a manufacturing operation easy by improving the structure of the bubble supply path.

Further, a fourth object of the present invention is to provide a washing machine in which supply of bubbles is not inhibited by vibration during operation.

Moreover, the 5th object of this invention is to provide the washing machine which can prevent the clogging of the bubble supply path.

A sixth object of the present invention is to provide a washing machine capable of supplying as many bubbles as possible into a washing tank through bubble port holes formed in the rotary blades.

1 is a side cross-sectional view showing the overall configuration of a washing machine according to an embodiment of the present invention.

2 is a partial cross-sectional view of the washing machine.

3A is a plan view of the pulsator, FIG. 3B is a sectional view taken along the line A-B of FIG. 3A, and FIG. 3C is a sectional view taken along the line D-F of FIG. 3B.

Figure 4 is a partial cross-sectional view showing one specific example of the bubble outlet.

5 is a partial cross-sectional view showing another specific example of the bubble outlet.

6 is a partial cross-sectional view of a washing machine according to another embodiment of the present invention.

7 is a plan view showing one embodiment of the inner blade.

8 is a side view showing another embodiment of the inner blade.

Fig. 9 is a partial cross-sectional view showing one specific example of the exit port.

* Description of the symbols for the main parts of the drawings *

2: outer tank 5: washing and dewatering tank

6: rotor blade 20: bubble generation means

21: upper supply path 23: lower supply path

24: bubble outlet 24a: check valve

26 concave portion 27 through hole

29: inner wing 38: photo port hole

40: labyrinth coupling

The washing machine of the present invention includes bubble generating means for supplying bubbles to the washing water in the washing tank, and bubble micronizing means for miniaturizing the bubbles supplied into the washing water by the bubble generating means.

The washing machine includes a means for miniaturizing the bubbles supplied to the washing water by the bubble generating means, so that the dissolution of the detergent into the washing water in the washing tank is promoted, and when the micronized bubbles contact with the laundry, they become fine and rupture. Due to the wave (ultrasound), the washing effect and the rinsing effect of the laundry are improved.

The washing machine further includes a rotary blade disposed inside the washing tub, and preferably washes or rinses the laundry by a combination of the water flow and the air bubbles caused by the rotary blade. In this case, it is preferable that the bubble refinement means is provided in the rotary blade.

In this structure, the bubble supplied to the wash water by the bubble generating means was refined by the rotary blades. Therefore, since the bubble is made finer by using the rotary blades that are rotated during the washing operation and the rinsing operation, it is not necessary to provide a means for newly refining the bubble.

The bubble micronizing means may be an inner blade provided on the lower surface of the rotary blade. According to this structure, it becomes possible to refine | miniaturize a bubble more effectively. In this case, the inner blade may be provided along the rotation radius direction of the rotary blade at the lower surface of the rotary blade. In addition, it is preferable that a plurality of inner wings are provided radially.

In addition, the inner blade is preferably comb-shaped or wavy. As a result, the effective area of the inner blade is increased, thereby improving the performance of bubble miniaturization.

It is preferable that the said rotary blade has the bubble port hole which supplies the bubble supplied to the wash water by the said bubble generating means upwards in a washing tank.

In this case, it is preferable that the rotary blade has a plurality of rooms partitioned in the radial direction on the back surface side (that is, the bottom surface side), and has the said photo exit hole 38 in the ceiling surface of each room.

With this configuration, bubbles sent out to the lower part of the pulsator by bubble generating means such as an air pump are dispersed and collected in each of the compartments inside the pulsator, so that bubbles collected inside the pulsator are collected from the pulsator. It is unevenly distributed on the outer circumferential side by centrifugal force by rotation. Therefore, bubbles are generated almost evenly in all the discharge holes formed in the pulsator, and bubbles are not biased in a part of the washing and dehydrating tank, and bubbles are evenly spread throughout the laundry.

The said washing tank may have a washing | cleaning and a dehydration tank, and the outer tank which can store water while arrange | positioning this washing and dewatering tank inside. In this case, the outer tank has a bubble outlet for introducing the bubbles supplied from the bubble generating means into the outer tank, and the washing / dehydrating tank has a through hole for introducing the bubbles supplied to the washing water into the inner wall. It is preferable to have a in the bottom wall surface.

In this case, the rotary blade is installed so as to rotate at the bottom of the washing and dewatering tank, and the washing and dewatering tank has a recess formed on the bottom thereof protruding upward, and the bubble outlet is near (preferably) the recess. It is preferable that the passage hole is provided in the recess so that the bubble supplied from the bubble outlet is introduced into the washing and dewatering tank.

The bubble introduced from the bubble outlet by this configuration is received in the recess and then sent to the washing and dewatering tank through the passage hole. As a result, the bubbles do not face the through-holes and do not escape to the outside of the outer tub, so that the bubbles can be reliably supplied into the washing and dewatering tank.

The outer tub is dust-tightly supported by the case, the bubble generating means is disposed above the main body of the washing machine, and a bubble supply path connecting the bubble generating means and the bubble outlet may be further provided. In this case, it is preferable that the bubble supply path is divided into an upper supply path and a lower supply path on the way, and a connecting portion connecting the upper supply path and the lower supply path is provided near the side wall of the outer tub.

Accordingly, when manufacturing the washing machine, it is possible to simply connect the upper supply path of the bubble supply path from the upper opening of the case to the lower supply path after assembling the outer tub in the case. Therefore, it is possible to assemble the outer tub into the case in a state in which the lower feed path disposed under the outer tub which is difficult for a manufacturer to work in advance is connected to the outer tub bottom, thereby improving the manufacturability of the washing machine.

The upper supply passage is preferably connected to the lower supply passage in the horizontal direction at the connecting portion.

According to this configuration, even when the outer tub is vibrated, no force is applied (in the horizontal direction) in the direction in which the upper feed passage is removed from the connecting portion at the connecting portion. Therefore, it is possible to prevent problems such as the upper supply passage coming out of the lower supply passage, which makes it impossible to supply bubbles, or the washing liquid in the washing and dehydrating tank leaking from the connecting portion.

In addition, the upper supply passage is preferably formed of a soft member. Accordingly, since the vibration is absorbed by the upper supply path even when the outer tub vibrates during operation of the washing machine, the supply path is bent so that the bubble sent by the bubble generating means is not reduced or broken.

On the other hand, the inner diameter of the lower supply passage is preferably larger than the inner diameter of the upper supply passage. Accordingly, even when the washing water enters the lower feed passage when the bubble generating means is stopped, the feeding passage is not easily blocked by the residues, seams, dissolved detergent, and the like contained in the washing water.

In addition, the washing machine preferably includes a sealing means between the rotary blade and the washing tank to prevent bubbles supplied to the washing water from leaking into the washing water from other than the air port ejection holes formed in the rotary blade.

Thereby, since the bubble supplied inside the rotary blade is prevented from leaking into the washing tank between the rotary blade and the washing tank, the bubbles are uniformly discharged from the bubble outlet hole.

It is preferable that the said sealing means is a non-contact type sealing mechanism. That is, for example, a groove portion composed of a plurality of cylindrical walls is provided on either the outer circumference of the rotary blade or on the bottom of the washing tank opposite to the outer circumference of the rotary blade, and on the other side so as to be movable in a non-contact state in the opening of the groove. It is preferable to install the sealing means and to constitute the sealing means with a labyrinth joining portion consisting of these grooves and the annular wall.

In addition, it is preferable that a plurality of the pre-out holes are formed in the rotary blades. In this case, it is preferable to make the total of the opening area of the said photo port hole located in the area | region of the center part of a rotary blade smaller than the total of the opening area of the said photo port hole which is located in the area | region of an outer peripheral part.

As the flow velocity increases from the center to the outer circumference of the rotor blade, the amount of bubbles also tends to increase as it goes to the outer circumference. It is possible to supply a lot of bubbles into the washing tank.

When the outer tank is dust-tightly supported in the case and the bubble outlet and the bubble generating means are connected by a bubble supply path, a check valve for preventing the washing water in the outer tank from flowing back into the bubble supply path is provided. It is preferable that it is provided in a kifoto exit. As a result, debris or detergent is prevented from entering the bubble supply passage, and the inside of the bubble supply passage is blocked, thereby preventing the supply amount of bubbles from being reduced.

Further, it is preferable that the bubble micronization means generates micronized bubbles having a diameter of about 0.5 mm.

If the diameter of the micronized micropore is too small, it passes through the gap between the fibers of the laundry, so that the bubbles are less likely to break in contact with the laundry and the cleaning effect is not improved. In addition, if the diameter is too large, bubbles do not rupture when they come into contact with the laundry, and they are collected under the laundry to float the laundry. Therefore, the diameter of the bubbles is preferably about 0.5 mm.

By paying attention to the sealing mechanism between the rotary blade and the washing tank, the present invention provides a washing tank, bubble generating means for supplying bubbles to the washing water in the washing tank, and bubbles provided in the washing tank and supplied to the washing water by the bubble generating means. It is understood that the washing machine includes a rotary vane having a bubble port for feeding into the washing tank, and a seal means for preventing air bubbles provided and provided between the rotary blade and the washing tank from leaking into the washing tank from other than the bubble port.

Also in this case, the sealing means is provided with a groove portion composed of a plurality of cylindrical walls on either the outer circumferential portion of the rotary blade or on the bottom of the washing tank opposite to the outer circumferential portion of the rotary blade, and on the other side, the contact portion is not in contact with the opening of the groove portion. An annular wall that is slidably fitted in a state can be provided and constituted by a labyrinth coupling portion consisting of these groove portions and the annular wall.

Also, by paying attention to the efficient supply of bubbles to the washing tank, the present invention provides a washing tank, bubble generating means for supplying bubbles to the washing water in the washing tank, and installed in the washing tank and supplied to the washing water by the bubble generating means. A rotary blade having a plurality of air port ejection holes for supplying bubbles into the washing tank, wherein the plurality of air port ejection holes have a total sum of the opening areas of the air port ejection holes located in an area of the center portion of the rotary wing; It is understood that the washing machine is formed to be smaller than the total of the opening areas of the photoout holes located in the region.

Further, by paying attention to the clogging prevention mechanism of the bubble supply passage, the present invention provides a dust-proof support in the case, a washing and dewatering tank disposed in the case, bubble generating means for supplying bubbles to the wash water, and A bubble outlet formed on the bottom wall to supply bubbles to the outer tub, a bubble supply path connecting the bubble outlet and the bubble generating means, and installed at the bubble outlet to wash the wash water in the outer tank back into the bubble supply passage; It can be understood as a washing machine that includes a check valve to prevent the damage.

The above and other objects, features and effects of the present invention will become apparent from the following description of the embodiments with reference to the accompanying drawings.

1 is a side cross-sectional view showing the overall configuration of a washing machine of a first embodiment of the present invention. 2 is a partial cross-sectional view of this embodiment. Inside the case 1 forming the outer frame of the washing machine, the outer tub 2 is suspended by a plurality of suspension rods 3, whereby the vibration of the outer tub 2 is transmitted to the casing 1. It is preventing.

In the inside of the outer tub 2, the shaft is supported freely by rotation about the rotating shaft provided in the bottom part of the washing-and-dehydrating tank 5 which has many water-passing holes 4 in the circumferential wall. At the bottom of the washing and dewatering tank 5, a pulsator 6 for stirring laundry is arranged, and the rotational power of the motor 7 mounted on the lower part of the outer tub 2 is a motor pulley 8, The V-belt 9, the main pulley 10, and the power switching mechanism 11 are transferred to the washing and dewatering tank 5 and the pulsator 6.

When the power switching mechanism 11 is dewatered, the washing and dewatering tank 5 and the pulsator 6 are integrally rotated, and otherwise, the drive shaft is switched so that only the pulsator 6 is rotated. do.

The upper part of the case (1) is provided with a water supply mechanism not shown, and the water supply is supplied to the washing and dehydration tank by the water supply mechanism.

A drain port 12 is installed at the bottom of the outer tub 2 and is connected to the drain hose 15 through a drain valve 13 and a drain passage 14. The drain valve 13 is provided with a solenoid, not shown in the drawing, and when the solenoid is excited, the drain valve 13 is opened, and the clutch in the power switching mechanism 11 is driven to drive the washing and dewatering tank ( 5) to the pulsator (6). Accordingly, when the drain valve 13 is closed, the power switching mechanism 11 rotates only the pulsator 6, and when the drain valve 13 is opened, the washing / dehydrating tank 5 and the pulsator are opened. The eater 6 is rotated integrally.

The upper part of the washing and dewatering tank (5) is equipped with a ring-shaped balance ring (16) for dustproof, and the circulation water extending vertically from the bottom of the washing and dewatering tank (5) to the center of the balance ring (16). A furnace 17 is formed along the inner wall of the washing and dewatering tank 5. At the upper end opening of the circulation water passage 17, a lint filter 18 for detaching debris such as seams mixed in the wash water is provided freely.

In addition, an air pump 20 for generating bubbles is incorporated in the upper surface plate 19, and one end of the first supply pipe 21 is connected to the air discharge side 20a of the air pump 20. The said 1st supply pipe 21 is wound around the outer side of the said outer tank 2 so that a margin may follow the said suspension rod 3 which hangs and supports the outer tank 2. And the other end of the said 1st supply pipe 21 is connected to the connecting pipe 22 provided in the side wall of the said outer tank 2 in the horizontal direction.

Since the connection part of the said 1st supply pipe 21 is provided in the side wall of the said tank 2, when manufacturing a washing machine, in the process after assembling the said tank 2 in the said case 1, the said 1st Supply pipe 21 can be connected to said connection pipe 22, and manufacturability improves.

The second supply pipe 23 is connected below the connecting pipe 22, and the second water supply pipe 23 reaches the bubble outlet 24 along the bottom of the outer tub 2. And the 2nd supply pipe 23 is firmly fixed to the said outer tank 2, and is connected to the said bubble outlet 24, and is piping. Thereby, since the 2nd supply pipe 23 vibrates integrally with the outer tub 2 at the time of the vibration of the said outer tub 2, the channel | path is undesirably bent and it does not close.

The first supply pipe 21 is formed of a tube of about 3.5 mm in inner diameter having elasticity such as rubber. On the other hand, the second supply pipe 23 is formed of a tube having an inner diameter of about 7.2 mm. The first supply pipe 21 having a small inner diameter has the advantage of not being bent better than the second supply pipe 23 having a large inner diameter and having the advantage that the passage in the pipe is not closed due to bending, but on the other hand, since the inner diameter is small, There is a drawback that it is easily clogged by debris that enters the pipe. On the other hand, the second supply pipe 23 having a large inner diameter bends well and the pipe is easily closed by bending, but since the inner diameter is large, it is not clogged with waste or the like.

That is, the upper side of the supply pipe, which is easily shaken by the vibration of the outer tank 2, but which wash water does not enter well, does not have the fear of bending due to the vibration of the outer tank using a tube that is easily blocked by the residue but does not bend well. For this reason, there is no need to absorb the vibration of the outer tank, but a tube that is easily bent but does not have a clogging is used in the lower portion of the supply pipe, which may be clogged due to the entry of the washing water.

If the pulsator 6 rotates at the bottom of the washing and dehydrating tank 5 during the washing operation or the rinsing operation, the laundry is stirred in the washing and dehydrating tank 5, so that the outer tank 2 swings up, down, left and right. Cause Dehydration also causes large fluctuations. At this time, the lower end of the first supply pipe 21 is connected to the connecting pipe 22 fixed to the side wall of the outer tank 2, and the upper end is connected to the air pump 20 disposed on the upper plate 19. When the outer tub 2 is shaken, a force that bends the first supply pipe 21 acts.

However, as mentioned above, since the 1st supply pipe 21 consists of a tube with a small internal diameter, even if the outer tank 2 vibrates, the tube bends at an acute angle so that the passage of air is not closed.

Moreover, the lower end of the said 1st supply pipe 21 is connected with respect to the connection pipe 22 in the horizontal direction. By connecting in the horizontal direction in this manner, even when the outer tub 2 vibrates during the operation of the washing machine, the first supply pipe 21 is connected to the connection portion between the first supply pipe 21 and the connecting pipe 22. Less force is applied (in the horizontal direction) in the direction of exit from the connecting pipe 22. Accordingly, problems such as the air supply being impossible to be released from the first supply pipe 21 and the false joint pipe 22, or the wash liquid in the washing and dewatering tank 5 leaking from the joint pipe 22 can be prevented. You can prevent it.

Leftovers, seams, melted detergents, etc., peeled off the laundry may settle on the inner bottom of the outer tank 2. In the case where the bubble outlet 24 is provided at the bottom of the outer tank 2, and the air pump 20 is stopped and air is not sent to the supply pipes 21 and 23 (e.g., during a rinsing operation or a dehydration operation). The wash water easily enters the second supply pipe 23 through the bubble outlet 24. Then, if debris, seams, melted detergent, etc. contained in the entered wash water is attached to or deposited on the inner surface of the second supply pipe 23, the second supply pipe 23 is blocked and the supply of air is reduced or closed. There is a possibility.

However, as mentioned above, since the 2nd supply pipe 23 consists of a tube with a large internal diameter, even if a wash liquid enters into the 2nd supply pipe 23, it will be prevented by the residue, seams, melted detergent, etc. in the wash liquid. The second supply pipe 23 is not blocked.

In the present embodiment, the second supply pipe 23 uses a tube. For example, a duct-shaped passage is formed by a groove integrally formed at the bottom of the outer tub 2, so that the cross-sectional area of the passage is dregs. The size is enough to prevent clogging with seams.

Also, as in the second embodiment of the bubble outlet shown in FIG. 4, the check valve prevents the washing liquid in the outer tub 2 from flowing back to the air pump 20 through the supply pipe 23 to the bubble outlet 24. When the structure 24a is provided, air from the air pump 20 is supplied into the outer tank 2, but the washing liquid in the outer tank 2 does not enter the supply pipe 23. As shown in FIG. Therefore, it is possible to prevent debris, seams, melted detergent, etc. in the washing liquid from being deposited in the supply pipe 23.

In addition, since the washing liquid does not enter the supply pipe 23, the problem of freezing the remaining water of the washing liquid entering the supply pipe 23 in winter or the like can be prevented.

On the bottom of the washing and dewatering tank 5, a concave portion 26 protruding upward in a donut shape is formed so as to surround the rotary shaft 25 of the washing and dewatering tank 5. On the bottom of the washing and dewatering tank (5), a passage hole (27) through which water between the washing and dewatering tank (5) and the bottom of the outer tank (2) passes, and which bubbles from the air pump (20) pass. ) Are provided in plural places within the concave portion 26. The passage hole 27 is disposed so as to be positioned almost above the bubble ejection opening 24. And the bubble which is sent by the air pump 20 and generate | occur | produced in the bubble outlet 24 directly enters into the said washing | cleaning and dehydration tank 5 through the said through hole 27, or the said recessed part 26 once. ), And into the washing and dewatering tank (5) through the passage hole (27).

3A to 3C are diagrams showing the detailed configuration of the pulsator 6, FIG. 3A is a plan view, FIG. 3B is a sectional view taken along the line A-B in FIG. 3A, and FIG. 3C is a sectional view taken on the line D-F in FIG.

As for the said pulsator 6, the stirring blade 28 which generate | occur | produces a water flow in the washing | cleaning and dehydration tank 5 is provided in the upper surface, and the inner blade 29 formed radially was provided in the back surface. This inner wing 29 has a pump action to suck up water between the bottom of the washing and dehydration tank 5 and the outer tank 2, and also has a crushing action to refine the bubbles generated from the bubble outlet 24. .

The pulsator 6 is composed of a substantially disc shaped body member 30 and a plurality of stirring blades 28 mounted on the body member 30.

The main body member 30 is a substantially disk-shaped member integrally formed of resin, and a boss portion 31 for attaching the pulsator 6 to the rotary shaft is protruded upward from the center portion thereof. On the upper surface of the main body member 30, five stirring blade mounting portions 32 are radially formed about the boss portion 31 at substantially equidistant intervals, and the centers of the radial stirring portions between the adjacent stirring blade mounting portions are slightly centered. It is a concave flat part 33. The flat part 33 is provided with a drainage hole 34 which is connected to the upper and lower sides, and a fountain hole 35 is formed on the outer circumferential side.

On the other hand, the lower surface of the main body member 30 is formed with a main rib 36 hanging over the entire outer circumference , and radially from the boss portion 31 to the main rib 36 , that is, a pulsator ( A plurality of inner blades 29 are formed to respectively follow the rotation radius direction of 6). The stirring blade mounting part 32 protrudes upwards from the flat part 33 in the shape of a mountain, and the stirring blade member 28 is attached to the upper part.

The inner side of the stirring blade mounting portion 32 is divided into three chambers 37a, 37b, 37c in the radial direction, and the air bubble ejection hole 38 through which the bubbles are released on the ceiling surface of each of the chambers 37a, 37b, 37c. ) Is penetrated through the stirring blade member 28 and the stirring blade mounting portion 32.

Next, the operation will be described.

In the washing operation or the rinsing operation, the pulsator 6 is rotated in a state where water is stored up to a predetermined level in the washing and dewatering tank 5. When the pulsator 6 rotates, the washing and dewatering tank 5 is formed through a through hole 27 formed in the bottom of the washing and dewatering tank 5 by the pumping action of the inner blade 29 formed on the rear surface. Water between bottom and bottom (2) bottom is sucked up. The sucked-up water is extruded to the outer circumference of the pulsator 6 and ascends the circulation water path 17, and is discharged from the upper end opening through the lint filter 18 into the washing and dewatering tank 5.

When the air pump 20 is driven, air is sent to the first supply pipe 21. The air sent is bubbled through the bubble outlet 24 provided on the bottom of the washing and dewatering tank 5 via the connecting pipe 22 and the second supply pipe 23, and is sequentially discharged into the outer tank 2. The released bubbles rise and are directly sucked into the through-holes 27 formed in the bottom of the washing and dewatering tank 5 by the pumping action of the inner blade 29 of the pulsator 6 or the washing and drying. Once it is accommodated in the recessed part 26 formed in the bottom face of the dehydration tank 5, it is sucked into the said through hole 27, and is sent to the said washing and dehydration tank 5. As shown in FIG.

That is, the bubbles discharged from the bubble outlet 24 into the outer tub 2 are once accommodated in the concave portion 26 before being sucked into the passage hole 27 when they are not directly sucked into the passage hole 27. The bubble does not face the through hole 27 and does not deviate outward of the outer tub 2, so that it is possible to reliably supply bubbles in the washing and dewatering tank 5.

The bubbles passing through the passage holes 27 are refined by stirring by the inner blades 29 formed on the rear surface of the pulsator 6, and the microbubbles (about 10 microns to 2 mm, average, which further improve the cleaning effect) are averaged. 0.5 mm). The microbubbles are collected in three chambers 37a, 37b, 37c on the inner side of the stirring blade mounting portion 32. Each of these three chambers 37a, 37b, 37c is provided with a plurality of gas photoout holes 38 penetrating up and down at predetermined positions, and the microbubbles gathered in each of the rooms 37a, 37b, 37c are each photographed. It floats from the hole 38 into the washing-and-dehydration tank 5.

At this time, the bubbles refined by the inner blades 29 of the pulsator 6 are almost evenly dispersed and collected in the three chambers 37a, 37b, 37c of the stirring blade mounting portion 32, Almost an equal number of micronized bubbles are also generated in the photoout holes 38 formed in the respective 37a, 37b, and 37c.

That is, when the pulsator 6 performs a rotational motion, the centrifugal force acts on the bubbles gathered inside the pulsator 6. At this time, when the inside of the stirring blade mounting part 32 is not divided | segmented in the radial direction, a bubble is centered on the outer peripheral side of the pulsator 6 by a centrifugal force, and it distributes. Therefore, since the number of bubbles generated in the bubble port openings located on the outer circumferential side of the stirring blade mounting section 32 increases compared to the number of bubbles generated in the bubble port openings located near the center of the stirring blade mounting section 32. By causing a problem that the bubbles supplied to the laundry become non-uniform, or by separating the inner side of the stirring blade mounting portion 32 in the radial direction as in the present embodiment, bubbles are dispersed in the separated rooms 37a, 37b, 37c. Since the bubbles gathered inside the pulsator 6 can be prevented from being biased and distributed on the outer circumferential side.

As a result, bubbles are generated almost evenly in all the bubble port 38 formed in the pulsator 6, so that bubbles are not biased in a part of the laundry, and bubbles are evenly distributed throughout the laundry.

The micronized bubbles generated in the bubble port 38 of the pulsator 6 are generated in the range of about 50 to 60 million in one minute, which floats and contacts the laundry. When bubbles come into contact with the laundry, ultrasonic waves are generated when the bubbles burst, and contaminants such as fats and oils that adhere to the fibers of the laundry are easily peeled off from the fibers by the micro-vibration. Therefore, by the combination of the water flow generated by the pulsator 6 and the bubbles, the cleaning performance and the rinsing performance are improved as compared with the case where the cleaning or rinsing is performed only by the water flow.

Incidentally, in the present embodiment, the bubble outlet 24 is provided at one place, but as shown in the third embodiment of the bubble outlet shown in FIG. Evenly, bubbles are taken out into the washing and dewatering tank 5 to improve the performance.

Next, another Example of this invention is described. 6 shows a partial cross-sectional view of the lower tub. In Fig. 6, in this embodiment, the rotary groove 6b composed of a plurality of cylindrical walls 6a is integrally formed on the outer peripheral portion of the pulsator 6. And the bottom surface of the washing | cleaning and dewatering tank 5 which opposes the outer peripheral part of the pulsator 6 in which the said rotary groove 6b is provided, the ring which is fluidly fitted in the said rotary groove 6b in a non-contact state. The wall 5a protrudes and constitutes the labyrinth seal portion 40 by the rotary groove 6b and the annular wall 5a.

Bubbles supplied to the rear surface of the pulsator 6 and refined by the inner blade 29 are intended to exit the washing-and-dehydration tank 5 through the air port 38, but the air port 38 is formed. Because of this small resistance, there is a case of leaking into the washing and dewatering tank 5 from the outer peripheral part of the pulsator 6 without passing through the photo port hole 38.

However, the bubble supplied to the back of the pulsator 6 by the labyrinth sealing part 40 which seals between the outer peripheral part of the pulsator 6 and the washing-and-dehydration tank 5 does not exist in the space behind the pulsator 6. It is enclosed and it becomes possible to prevent more effectively entering into the washing | cleaning and dehydration tank 5 from the outer peripheral part of the pulsator 6. As a result, bubbles are supplied into the washing-and-dehydrating tank 5 only through the bubble port 38 to improve the efficiency.

Next, another Example of this invention is described.

In the above-described embodiment, the inner blade 29 is composed of a flat blade, and a configuration is described in which bubbles are crushed by the blade. For example, as shown in FIGS. 7 and 8, the inner blade has a wave plate shape and a comb shape. You may make it.

Fig. 7 shows another embodiment of the inner blade, and Fig. 8 is a side view showing another embodiment of the inner blade. 7, these parts correspond to the respective parts in FIG. 3 with the same reference numerals. Fig. 7 is a view of the pulsator 6 viewed from above, and reference numeral 29a represents the inner wing, and is formed in a wave plate shape when viewed from above.

This increases the surface area of the inner blades, so that the inner blades work more effectively, and the bubbles supplied to the inside of the pulsator 6 can be refined more efficiently. 8 is the figure which looked at the pulsator from the side, and 29c shows an inner blade. A plurality of slits 29d are carved on the lower edge of the inner blade 29c, and are formed almost in the shape of a comb. Even with this configuration, since the effective surface of the inner blade 29c can be enlarged, the micronized performance of bubbles is further improved.

Next, another example of the photoout hole will be described.

In the above-described invention, as shown in FIG. 3, the photoout hole 38 provided in the pulsator 6 is formed almost uniformly throughout the pulsator 6, but partially in the photoconductor hole 38. The area may be changed or the interval between adjacent photoout holes may be different.

In other words, when the pulsator 6 performs a rotational movement, the flow toward the pulsator 6 circumferential direction occurs in the wash water inside the pulsator 6. This flow increases in flow rate as it goes from the central portion of the pulsator 6 to the outer peripheral portion, and the amount of bubbles also increases. In this respect, bubbles supplied from the through holes 27 and pulverized by the inner blades 29 tend to be biased and distributed on the outer circumferential side of the pulsator 6.

As in the above-described embodiment, if the photoout hole 38 is uniformly provided throughout the pulsator 6, the bubbles supplied to the washing and dewatering tank 5 are closer to the outer periphery than the central part of the pulsator 6. Since the air flows through the air bubble port 38 of the pulsator 6, the air bubbles are concentrated in the air port hole 38 of the outer circumferential portion of the pulsator 6, thereby preventing the flow of air bubbles. There was.

Thus, for example, as shown in FIG. 9, the distance between the adjacent photo port holes 38a is reduced from the center of the pulsator 6 to the outer peripheral part of the pulsator 6 so that Density is increased. That is, since the total opening area of the photo port ejection hole 38a provided in the outer peripheral part becomes larger than the center part, bubbles are generated in the air port ejection hole 38a of the outer peripheral part of the pulsator 6 by the rotational movement of the pulsator 6. Even if it is concentrated, the bubble passes smoothly through the bubble port 38a. Therefore, the bubble can be supplied efficiently.

Although the embodiments of the present invention have been described in detail, these are only embodiments used to clarify the technical contents of the present invention, and the present invention should not be construed as being limited to these embodiments, but the spirit of the present invention. And scope is defined only by the appended claims.

The washing machine of the present invention includes a means for miniaturizing the bubbles supplied to the washing water by the bubble generating means, which facilitates the dissolution of the detergent into the washing water in the washing tank, and at the same time, the micronized bubbles come into contact with the laundry, thereby miniaturizing and rupturing. Due to the pulsation (ultrasound), the washing effect and the rinse effect of the laundry are improved.

In addition, since the washing machine of the present invention refines the bubbles by using the rotary blades that rotate during the washing operation and the rinsing operation, it is not necessary to provide a means for newly refining the bubbles.

In addition, since the bubble micronization means is an inner wing provided on the lower surface of the rotary blade, it is possible to effectively refine the bubble, and when the inner wing is a comb or wave shape, the effective area of the bubble is increased since the effective area of the inner wing increases. This is improved.

In addition, the rotary blades have a plurality of rooms partitioned in the radial direction on the rear surface side (i.e., the lower surface side), and the air outlet holes are provided on the ceiling surface of each room, whereby the pulsator is formed by bubble generating means such as an air pump. Since the air bubbles sent to the lower part are dispersed and collected in each of the compartments inside the pulsator, the air bubbles gathered inside the pulsator are unevenly distributed on the outer circumferential side by the centrifugal force caused by the rotation of the pulsator. Bubbles are generated almost evenly in all the discharge holes formed, bubbles are not biased in a part of the washing and dewatering tank, and bubbles are evenly distributed throughout the laundry.

In addition, as bubbles introduced from the bubble outlet are received in the recesses and are sent to the washing and dewatering tank through the through-holes, the bubbles do not face the through-holes and do not escape to the outside of the outer tub to be reliably stored in the washing and dewatering tank. It becomes possible to supply bubbles.

In addition, the bubble supply path is divided into the upper supply path and the lower supply path on the way, and when manufacturing the washing machine, the upper supply path of the bubble supply path from the upper opening of the case to the lower supply path is simple after assembling the outer tub in the case. Therefore, it is possible to assemble the outer tub into the case in a state in which the lower feed path disposed under the outer tub which is difficult for the manufacturer to connect to the outer tub bottom in advance, thus improving the manufacturability of the washing machine.

In addition, the upper supply path is connected to the lower supply path in the horizontal direction from the connecting portion, even if the outer tub vibrates, no force is applied (in the horizontal direction) in the direction in which the upper supply path is removed from the connecting portion, Therefore, it is possible to prevent problems such that the upper supply passage is removed from the lower supply passage and bubbles cannot be supplied or the washing liquid in the washing and dehydrating tank leaks from the connecting portion.

In addition, since the upper supply path is formed of a soft member and vibration is absorbed by the upper supply path even when the outer tank vibrates during the operation of the washing machine, the supply path is bent, thereby reducing the bubbles sent out by the bubble generating means. Do not break or break.

On the other hand, the inner diameter of the lower supply path is larger than the inner diameter of the upper supply path, even if the washing water enters the lower supply path when the bubble generating means is stopped, wastes, seams and dissolved detergent contained in the washing water The supply path is not easily blocked by the back.

In addition, the washing machine is provided with a sealing means for preventing air bubbles from leaking out of the outside of the bubble port, and since the bubble supplied to the inside of the rotary blade is prevented from leaking into the wash tank between the rotary blade and the washing tank, it is uniform at the bubble port. Bubbles are discharged.

In addition, by increasing the total opening area of the photoout holes in the outer peripheral portion compared to the central portion, it is possible to supply as many bubbles as possible into the washing tank.

By installing a check valve at the bubble port outlet, debris and detergent are prevented from entering the bubble supply passage, and the inside of the bubble supply passage is blocked, thereby preventing the supply amount of bubbles from being reduced.

In addition, since micronized bubbles having a diameter of about 0.5 mm are generated and the diameters are too small to pass through the gaps of the laundry fibers, bubbles are difficult to contact and burst with the laundry, so that the cleaning effect is not improved or the diameter is too large. Is not ruptured when it comes into contact with the laundry and prevents it from gathering underneath the laundry.

Claims (24)

Bubble generation means 20 for supplying bubbles to the wash water in the washing tanks 2 and 5, and bubble micronization means 6 and 29 for miniaturizing the bubbles supplied into the wash water by the bubble generation means 20; The rotary blades 6 are disposed inside the washing tanks 2 and 5, and washing or rinsing of the laundry is performed by the combination of the water flow and the air bubbles by the rotary blades 6 , The washing tanks 2 and 5 have a washing and dewatering tank 5 and an outer tank 2 for storing the washing and dewatering tank 5 therein and storing water therein. Has a bubble outlet 24 for introducing the bubbles supplied from the bubble generating means 20 into the outer tank 2 on the bottom wall, and the washing and dewatering tank 5 supplies the bubbles supplied to the wash water. It has the through-hole 27 which introduces into the inside in the bottom wall surface , The rotary blade 6 is installed to rotate at the bottom of the washing and dewatering tank 5, and the washing and dewatering tank 5 has a recess 26 protruding upwards at the bottom. The bubble outlet 24 is opened in the vicinity of the concave portion 26, and the passage hole 27 is concave so that the bubble supplied from the bubble outlet 24 is introduced into the washing and dewatering tank 5. Washing machine, characterized in that installed in the section (26) . delete The washing machine according to claim 1, characterized in that the bubble micronizing means (6,29) are provided on the rotary blade (6). The washing machine according to claim 3, wherein the bubble micronizing means (6,29) is an inner blade (29) provided on the lower surface of the rotary blade (6). 5. The washing machine according to claim 4, wherein the inner blade (29) is provided along the rotation radius direction of the rotary blade (6) at a lower surface of the rotary blade (6). The washing machine according to claim 5, wherein a plurality of said inner blades (29) are provided radially. The washing machine according to any one of claims 4 to 6, wherein the inner blade (29) is comb-shaped or wavy. 7. The rotary wing 6 according to any one of claims 1 to 6 , wherein the rotary blades 6 supply the bubbles supplied to the wash water by the bubble generating means 20 upward in the washing tanks 2,5. Washing machine, characterized in that it has a pre-out port 38 to be supplied to. 9. The rotary blade (6) has a plurality of chambers (37a, 37b, 37c) partitioned in the radial direction on the back side, and the preliminary projection on the ceiling surface of each of the rooms (37a, 37b, 37c). Washing machine characterized by having a hole (38). delete delete 2. The outer tub 2 is dust-proof supported by the case 1, the bubble generating means 20 is disposed above the main body of the washing machine, and the bubble generating means 20 and the bubble outlet are A bubble supply passage (21, 23) is further provided to connect the (24), and the bubble supply passage (21, 23) is divided into an upper supply passage (21) and a lower supply passage (23) on the way. Washing machine characterized in that the connecting portion (22) to which the upper supply passage (21) and the lower supply passage (23) are connected is installed near the side wall of the outer tub (2). 13. The washing machine according to claim 12, wherein the upper supply path (21) is connected to the lower supply path (23) in the horizontal direction at the connecting portion (22). The washing machine according to claim 12 or 13, wherein the upper supply passage (21) is formed of a soft member. The washing machine according to claim 12 or 13, wherein an inner diameter of the lower supply passage (23) is made larger than an inner diameter of the upper supply passage (21). 9. The rotary blade (6) and a sealing means (40) for preventing air bubbles supplied to the washing water from leaking into the washing water from other than the air outlet hole (38) formed in the rotary blade (6). A washing machine installed between washing tanks (2, 5). The groove part 6b of Claim 16 which consists of a some cylindrical wall 6a in either the outer peripheral part of the said rotary blade 6, or the bottom wall of the washing tanks 2 and 5 which opposes the outer peripheral part of the said rotary blade 6. At the same time, the annular wall 5a which is slidably fitted in the opening of the groove portion 6b in a non-contact state is provided on the other side, and the labyrinth composed of these groove portions 6b and the annular wall 5a is provided. Washing machine, characterized in that the coupling means 40 constituted the sealing means. 9. The opening area of the photo port opening 38 is formed in the rotary blade 6, and a plurality of the group photo exit holes 38 are formed in the central portion of the rotary blade 6. Washing machine, characterized in that the sum total is smaller than the sum total of the opening area of the photoout hole (38) located in the area of the outer peripheral portion. 2. The outer tub 2 is dust-proof supported by the case 1, and the bubble outlet 24 and the bubble generating means 20 are connected by bubble supply paths 21 and 23. And a check valve (24a) for preventing the wash water in the outer tub (2) from flowing back into the bubble supply passages (21, 23). 7. Washing machine according to one of the preceding claims, characterized in that the bubble micronizing means (6,29) produce micronized bubbles with a diameter of about 0.5 mm. The washing tanks 2 and 5, the bubble generating means 20 for supplying bubbles to the wash water in the washing tanks 2 and 5, and the washing tanks 2 and 5 are installed in the washing tanks 2 and 5 to be washed by the bubble generating means 20. A rotary blade 6 having a bubble port hole 38 for supplying bubbles supplied to the water into the washing tanks 2 and 5, and bubbles provided and supplied between the rotating blades 6 and the washing tanks 2 and 5, respectively. And a sealing means (40) for preventing the leaking into the washing tanks (2, 5) from the other than the photo ejection hole (38). 22. The groove portion 6b according to claim 21, wherein the groove portion 6b is formed of one of the plurality of cylindrical walls 6a on either the outer circumferential portion of the rotary blade 6 or on the bottom wall of the washing tanks 2, 5 facing the outer circumferential portion of the rotary blade 6. At the same time, the annular wall 5a which is slidably fitted in the opening of the groove portion 6b in a non-contact state is provided on the other side, and the labyrinth composed of these groove portions 6b and the annular wall 5a is provided. Washing machine, characterized in that the coupling means 40 to constitute the sealing means. The washing tanks 2 and 5, the bubble generating means 20 for supplying bubbles to the wash water in the washing tanks 2 and 5, and the washing tanks 2 and 5 are installed in the washing tanks 2 and 5 to be washed by the bubble generating means 20. A rotary wing 6 having a plurality of air port ejection holes 38 for supplying bubbles supplied to the water into the washing tanks 2 and 5, wherein the plurality of air port ejection holes 38 are provided with the rotary wing 6 A washing machine, characterized in that the total of the opening areas of the photoout holes (38) located in the region of the center portion is smaller than the total of the photoout holes (38) located in the region of the outer peripheral portion. The outer tub 2 which is dust-proof supported in the case 1, the washing and dehydrating tank 5 disposed in the case 1, the bubble generating means 20 for supplying bubbles to the wash water, and the outer tub 2 And a bubble supply passage (21, 23) formed on a bottom wall of the bottom wall to connect the bubble outlet (24) for supplying bubbles into the outer tub (2), and the bubble outlet (24) and the bubble generating means (20); And a check valve (24a) installed at the bubble outlet (24) to prevent the wash water in the outer tub (2) from flowing back into the bubble feed passages (21, 23), wherein the wash and dewatering tank (5) Has a concave portion 26 protruding upward, and the bubble outlet 24 is opened in the vicinity of the concave portion 26, and the bubble supplied from the bubble outlet 24 is washed. The through hole 27 is provided in the recess 26 so as to be introduced into the dewatering tank 5. Washing machine, characterized in a.