JP2003220294A - Electric washing machine and operation control method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric washing machine capable of easily removing moisture from laundry containing the moisture without providing a high-cost member complicating a structure such as a drying instrument, and the operation control method. <P>SOLUTION: A washing and dehydrating tub 6 is freely rotatably disposed inside an outer tub 2 supported inside an outer box 1 and an air intake port 16 is formed at a position higher than the upper end part of the washing and dehydrating tub 6. By rotating the washing and dehydrating tub 6, outdoor air is taken in from the air intake port 16, the taken-in outdoor air is brought into contact with the laundry 9 containing the moisture fed inside the washing and dehydrating tub 6 and the moisture is vaporized. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electric washing machine and an operation control method thereof.

[0002]

2. Description of the Related Art FIG. 9 is a cross-sectional view showing a conventional electric washing machine. In the figure, 21 is an outer box, 22 is a water basket, 23 is a dehydration basket, 24 is a dehydration hole, 25 is a rotary blade, and 26 is a motor. , 27 is a speed reducer, 28 is a drain hose, and 29 is a laundry.

In such a conventional electric washing machine,
When the laundry 29 and the detergent are put into the dehydration basket 23 and the switch is pressed, water is poured into the water receiving basket 22 and when the predetermined amount of water is stored, the motor 27 is operated and the rotary blades 25 rotate, The washing of the laundry 29 starts. When the rotary blades rotate for a predetermined time and the cleaning is completed, the motor 27 is stopped and the dirty water is drained.

When the dehydration basket 23 is rotated at a high speed after the rinsing performed by pouring water after draining the sewage and rotating the rotary blades 25 is repeated several times, the water content of the laundry 29 is scattered from the dehydration holes 24 by centrifugal force. The laundry 29 of the dehydration basket 23 is dehydrated. After dehydration, the laundry 29 in the dehydration basket 23 is taken out and dried.

[0005]

In the conventional electric washing machine as described above, the water content in the laundry 29 is scattered by the centrifugal force by rotating the dehydration basket 23 during the dehydration, so that the laundry 29 is washed. Although it is dried and dried, when the laundry 29 is a thick one such as jeans, the amount of water contained in the laundry 29 is large and there is a limit to the scattering due to the centrifugal force. It was a bad thing. Furthermore, when laundry that has not been completely scattered after dehydration is dried indoors, it takes a long time for the moisture to evaporate, so that the time that the moisture stays in the laundry 29 becomes longer, and water mold must grow. There was a problem that a peculiar odor like that remains in the laundry. In addition, there are conventional ones equipped with a drying function in order to solve these problems, but there was a problem that the cost was high and the structure was complicated.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to easily remove moisture from a laundry containing a lot of moisture without providing a member such as a drying instrument which complicates the structure at high cost. The present invention provides an electric washing machine that can be removed and an operation control method thereof.

[0007]

In the electric washing machine according to the present invention, a washing / dehydrating tub is rotatably disposed in an outer tub supported in an outer box and the upper end of the washing / dehydrating tub is An intake port is formed at a position higher than the portion, the washing / dehydrating tub is rotated to take in outside air from the intake port, and the taken-in outside air is brought into contact with the laundry in the washing / dehydrating tub.

Further, the washing / dehydrating tub is rotatably disposed in the outer tub supported in the outer box, and the intake port is formed at a position higher than the upper end of the washing / dehydrating tub, and the dewatering process is completed. After that, the washing / dehydrating tub is temporarily stopped or continuously rotated for a predetermined time to take in the outside air from the intake port, and the taken-in outside air is brought into contact with the laundry in the washing / dewatering tub.

Also, the outer box is provided with an exhaust port.

Further, a rotary blade for stirring laundry is rotatably provided on the inner bottom of the washing / dehydrating tub, and a plurality of rotary blade ventilation holes are formed in the rotary blade.

Further, the balancer provided at the upper end of the washing / dehydrating tub is provided with a rib for guiding the outside air taken in through the intake port into the washing / dehydrating tub.

Further, the number of rotations of the washing / dehydrating tub is made variable.

Further, the rotation speed of the washing / dehydrating tub is changed.

Further, the washing / dehydrating tub is rotated left and right alternately.

Further, a rotary vane is rotatably provided on the inner bottom portion of the washing / dehydrating tub, and the rotary vane is rotated during the rotation of the washing / dehydrating tub.

The intake port is openable / closable.

Further, an air filter is provided at the intake port.

Further, the air filter is removable.

Further, in an electric washing machine in which a washing / dehydrating tub is rotatably arranged in an outer tub supported in an outer box to wash and rinse laundry, the moisture in the washing / dehydrating tub is used. The washing and dehydrating tub is rotated by the rotating force of the washing and dehydrating tub, and the rotation of the washing and dehydrating tub is controlled so that the laundry comes into contact with the air. To do.

Further, a washing / dehydrating tub is rotatably disposed in an outer tub supported in an outer box, and a washing process, a rinsing process,
In a fully automatic washing machine that automatically performs the dehydration process, after the completion of the dehydration process, the washing / dehydrating tub in which the laundry is put is rotated, and the rotational force of the washing / dehydrating tub causes the air flow to be the same as the washing / dehydrating process. The washing / dehydrating tub is controlled so that it is taken into the dehydrating tub and the laundry in the washing / dehydrating tub comes into contact with the air.

Further, in a fully automatic washing machine in which a washing / dehydrating tub is rotatably disposed in an outer tub supported in an outer box and the washing and rinsing steps are automatically performed, after the rinsing step is completed. , Rotating the washing / dehydrating tub in which the laundry is loaded, and taking in the air flow into the washing / dehydrating tub by the rotating force of the washing / dehydrating tub, and the laundry and the air in the washing / dehydrating tub. The washing / dehydrating tub is controlled so as to come into contact with each other.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. 1 to 5 are a sectional view showing an electric washing machine of the present invention, a perspective view of a top cover, a perspective view of a balancer, a top view of a rotary blade, and a perspective view of a back side. In the figure, 1 is an outer box, 2 is an outer tub arranged in the outer box 1, 3 is a drive unit including a motor 4 and a speed reducer 5 arranged at an outer bottom portion of the outer tub 2, and 6 is an outer tub 2. A washing / dehydrating tub 7 is rotatably provided inside, a balancer 7 is provided at an upper peripheral edge of the washing / dehydrating tub 6, and has spiral ribs 7a formed on the entire inner peripheral surface, and 8 is a washing / dehydrating tub 6. Dewatering holes formed on the wall surface, 9 is laundry contained in the washing / dehydrating tub 6, 10 is a rotary blade disposed on the inner bottom of the washing / dehydrating tub 6,
Reference numeral 11 denotes a rotary blade ventilation hole formed in the rotary blade 10, and 12
Is a drainage / exhaust hole formed in the inner bottom portion of the washing / dehydrating tub 6 below the rotary blade 10, 13 is a top cover having a lid 14 attached to the upper opening of the outer box 1, and 15 is a drive unit 3 A control unit disposed in the top cover 13 for controlling the air conditioner, an intake port 16 formed in the top cover 13, and an exhaust port 17 formed in the upper rear wall surface of the outer box 1. The arrows in the figure show the flow (wind) of the outside air.

In the electric washing machine thus constructed, first, a washing step, a rinsing step and a dehydrating step are performed. Then, after the dehydration process is completed, the washing and dehydrating tub 6 is rotated. A centrifugal force is generated by the rotating action of the washing / dehydrating tub 6, and at the same time, outside air is sucked into the washing / dehydrating tub 6 through the intake port 16 located above the washing / dehydrating tub 6. At this time, the balancer 7 has a spiral rib 7a formed on the entire inner peripheral surface as shown in FIG. 4, whereby the outside air taken in from the intake port 16 easily flows along the spiral rib 7a. Are easily inhaled. The outside air thus taken in contact with the laundry 9 to vaporize the water contained in the laundry 9 and reduce the amount of water in the laundry 9. Then, the outside air containing water flows out of the washing / dehydrating tub 6 through the rotary vane ventilation holes 11 formed in a large number in the rotating wing 10 shown in FIG. After passing through the exhaust hole 12, the washing and dehydrating tank 6
Which is discharged from the outlet 17 provided on the rear wall surface of the upper part of the outer box 1 through the gap between the outer tub 2 and the outer tub 2 (thin line arrow in FIG. 1), and exhausted directly from the washing / dehydrating tub 6 Some are discharged from the mouth 17 (thick line arrow in FIG. 1).

Next, the rotation control of the washing / dehydrating tub 6 will be described. The outside air can be taken in by the rotating action in the same rotation speed and rotation direction as in the normal dehydration step, but if the rotation speed of the washing / dehydrating tank 6 is variable or the rotation speed is changed, washing / washing can be performed. Pressure is generated in the dehydration tub 6 and the outside air is easily taken in, the flow of the outside air can be strengthened or weakened, and vaporization and evaporation of water in the laundry 9 can be promoted. If the rotation direction is changed to the left or right, the flow of the outside air taken in changes and the laundry 9
Since the action of loosening the laundry is generated, the laundry 9 can be uniformly exposed to the outside air.

In addition, during the rotation of the washing / dehydrating tub 6 or after the rotation of the washing / dehydrating tub 6 is completed, the rotary blades 10 are rotated to scrape and loosen the laundry 9 in the washing / dehydrating tub 6. Also by doing so, the flow (wind) of the outside air that has been evenly taken in by the laundry 9 can be brought into contact with it.

That is, by providing the intake port 16 and the drainage / exhaust hole 12 in the top cover 13 and the inner bottom of the washing / dewatering tub 6, the outside air is drained from the intake port 16 by the rotating action of the washing / dehydration tub 6. The air flows toward the exhaust / exhaust holes 12, and the ribs 7a provided on the balancer 7 further facilitate the flow of outside air, so that the laundry 9 containing water in the washing / dehydrating tank 6 is effectively exposed to air. The flow (wind) comes into contact.

In this way, the outside air is brought into contact with the laundry 9 containing water in the washing / dehydrating tub 6 as a flow of air so that the laundry 9 is dried in the same manner as when the laundry is dried outside. It is possible to vaporize and evaporate the water. Since the laundry 9 is agitated by rotating the rotary blades 10 during the rotation of the washing / dehydrating tub 6, the water in the laundry 9 can be vaporized and removed evenly.

By carrying out such an operation for a predetermined time and then drying the laundry 9, it is possible to dry the laundry 9 faster than the laundry which has just been dried after the dehydration step. For example, depending on the amount of laundry and the temperature / humidity of the place to dry,
As shown in the drying characteristic diagram of FIG. 6, when 8 kg of laundry 9 is washed and then dried (graph a in FIG. 6), it takes 240 minutes for the dried article to dry after the dehydration step, compared to the dehydration step. The air (flow) of the outside air caused by the rotation of the washing / dehydrating tub 6 is brought into contact with the laundry to evaporate and evaporate the moisture, and then dried (graph b in FIG. 6) is dried in 160 minutes, Can be dried in time.

As described above, since no drying equipment is used, the cost is low and the structure is not complicated.
It can shorten the time for the laundry to dry.

Further, in the above embodiment, the outside air is brought into contact with the laundry 9 containing water after the washing step, the rinsing step and the dehydration step as a flow of air, but the water after the rinsing step is removed. The same effect can be achieved by bringing the contained laundry into contact with the air flow generated as described above. In addition, it is possible to perform the contact of the outside air described in the above embodiment with laundry containing moisture as a flow of air independently as one step, and for laundry washed by hand or the like. The same effect can be obtained by bringing the outside air into contact with the air flow.

Embodiment 2. Further, although the intake port 16 is formed in the top cover 13 in the first embodiment, it may be formed anywhere above the opening of the washing / dehydrating tub 6, and the rotary blade ventilation hole of the rotary blade 10 may be used. 11 and the drainage / exhaust port 12 provided at the inner bottom of the washing / dehydrating tub 6 and the linear top cover 13 position, the outside air is sucked toward the exhaust port 12 at the inner bottom of the washing / dehydrating tub 6. Therefore, it is effective. Further, as shown in FIG. 7, the intake port 16 formed in the top cover 13 is formed large,
By installing a cover 18 for the intake port that can be freely opened and closed, the air volume taken in by the large intake port 16 can be further increased, and the cover can be used when the intake of outside air from the intake port 16 is unnecessary, such as in the normal washing process and rinsing process. 15 can be closed.

Further, as shown in FIG.
An air filter 19 is attached to the inside of the washing / dehydrating tank 6 to prevent germs in the outside air from entering into the washing / dehydrating tank 6 so that clean outside air can be taken in and the odor of the laundry 9 can be suppressed. If it is detachably formed, the filter can be easily cleaned (see FIG. 8).

Embodiment 3. In the first and second embodiments, the control unit 15 controls the rotating blades 10 to rotate alternately with the rotation of the washing / dehydrating tub 6 while the washing / dehydrating tub 6 is rotating. The laundry 9 attached to the wall surface of the washing / dewatering tub 5 can be written down by the centrifugal force generated by the rotation of 6, and the outside air taken in through the intake port 16 can be evenly and uniformly contacted with the laundry 9.

[0034]

Since the present invention is configured as described above, it has the following effects.

The washing / dehydrating tub is rotatably disposed in the outer tub supported in the outer box, and the intake port is formed at a position higher than the upper end of the washing / dehydrating tub. Since the outside air is taken in by rotating the and the intake air is brought into contact with the laundry in the washing and dehydrating tub,
You can create a flow of air (wind) in the washing and dewatering tub,
The environment is the same as when the laundry is exposed to the wind, and the water content in the laundry can be reduced without cost and without complicating the structure.

In addition, the washing / dehydrating tub is rotatably disposed in the outer tub supported in the outer box, and the intake port is formed at a position higher than the upper end of the washing / dehydrating tub to complete the dewatering process. After that, the washing / dehydrating tub is temporarily stopped or continuously rotated for a predetermined time to take in the outside air from the intake port, and the outside air taken into contact with the laundry in the washing / dewatering tub is brought into contact with the laundry. The items dry faster, and the time to dry and dry the laundry can be shortened.

Further, since the outer box is provided with the exhaust port, the external air can be taken in smoothly from the intake port by forming an exhaust path for the external air.

Further, a rotary blade for stirring the laundry is rotatably provided on the inner bottom of the washing / dehydrating tub, and a plurality of rotary blade ventilation holes are formed in the rotary blade. The outside air taken in from the intake port smoothly flows into the holes of the rotor blades, so that the outside air is easily taken in.

Since the balancer provided at the upper end of the washing / dehydrating tub is provided with a rib for guiding the outside air taken in from the intake port into the washing / dehydrating tub, the outside air taken in from the intake port is washed / dewatering tub. It becomes easy to be taken in.

Further, since the rotation speed of the washing / dehydrating tub can be varied, pressure can be generated in the washing / dehydrating tub, and the outside air can be easily taken in.

Further, since the rotation speed of the washing / dehydrating tub is changed, the flow of outside air taken into the washing / dehydrating tub can be made stronger or weaker, and vaporization and evaporation of water in the laundry can be promoted. .

Further, since the rotating direction of the washing / dehydrating tub is alternately rotated right and left, the flow of the outside air taken into the washing / dehydrating tub can be changed, and the laundry is loosened and the outside air is evenly and evenly distributed. Can be contacted with laundry.

Since the rotary vanes are rotatably provided on the inner bottom of the washing / dehydrating tub and the rotary vanes are rotated during the rotation of the washing / dehydrating tub, the laundry can be scraped off by the rotation of the rotary vanes. Therefore, the outside air can be evenly and uniformly contacted with the laundry.

Further, since the intake port can be opened and closed, the intake port can be opened only when the outside air is taken in.

Further, since the air inlet is provided with an air filter, it is possible to prevent invasion of germs contained in the outside air into the washing / dehydrating tank, and to vaporize the contained water while suppressing the generation of odor in the laundry. It can be evaporated.

Further, since the air filter is detachable, the cleaning property is improved.

Further, in an electric washing machine in which a washing / dehydrating tub is rotatably disposed in an outer tub supported in an outer box to wash and rinse laundry, the moisture in the washing / dehydrating tub is used. The washing and dehydrating tub is rotated by the rotating force of the washing and dehydrating tub, and the rotation of the washing and dehydrating tub is controlled so that the laundry comes into contact with the air. Therefore, the water content of the laundry can be vaporized and evaporated to be removed quickly.

Further, a washing / dehydrating tank is rotatably disposed in an outer tub supported in the outer box, and a washing step, a rinsing step,
In a fully automatic washing machine that automatically performs the dehydration process, after the completion of the dehydration process, the washing / dehydrating tub in which the laundry is put is rotated, and the rotational force of the washing / dehydrating tub causes the air flow to be the same as the washing / dehydrating process. Since the washing / dehydrating tub is controlled so that it is taken into the dehydrating tub and the laundry in the washing / dehydrating tub comes into contact with the air, the water content of the laundry can be vaporized and evaporated to be quickly removed.

Further, in a fully automatic washing machine in which a washing / dehydrating tub is rotatably disposed in an outer tub supported in an outer box and a washing process and a rinsing process are automatically performed, after the rinsing process is completed. , Rotating the washing / dehydrating tub in which the laundry is loaded, and taking in the air flow into the washing / dehydrating tub by the rotating force of the washing / dehydrating tub, and the laundry and the air in the washing / dehydrating tub. Since the washing / dehydrating tub is controlled so as to contact with each other, the water content of the laundry can be quickly removed by the dehydration from the centrifugal force due to the rotation of the washing / dehydrating tub and the vaporization and evaporation due to the contact with air.

[Brief description of drawings]

FIG. 1 is a sectional view of an electric washing machine showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the electric washing machine showing the first embodiment of the present invention.

FIG. 3 is a perspective view of a main part of the electric washing machine showing the first embodiment of the present invention.

FIG. 4 is a main part top view of the electric washing machine showing the first embodiment of the present invention.

FIG. 5 is a rear perspective view of the electric washing machine showing the first embodiment of the present invention.

FIG. 6 is a drying characteristic diagram of the electric washing machine showing the first embodiment of the present invention.

FIG. 7 is a side view of the essential parts of the electric washing machine showing the second embodiment of the present invention.

FIG. 8 is a perspective view of essential parts of the electric washing machine showing the second embodiment of the present invention.

FIG. 9 is a perspective view of essential parts of the electric washing machine showing the second embodiment of the present invention.

FIG. 10 is a cross-sectional view showing a conventional electric washing machine.

[Explanation of symbols]

1 Outer Box, 2 Outer Tank, 3 Drive Unit, 4 Motor, 5 Reducer, 6 Washing / Dehydrating Tank, 7 Balancer, 7a Rib, 8 Dehydrating Hole, 9 Laundry, 10 Rotor Blades, 11 Rotor Blade Vents, 12 Drainage / exhaust hole, 13 top cover, 14 lid, 15 control part, 16 intake port, 17 exhaust port.

Continued front page    (72) Inventor Mitsuru Shimizu             1-1 1-1 Yamate, Funabashi City, Chiba Prefecture             Inside the Iron Co., Ltd. F term (reference) 3B155 AA16 BB05 CB07 CB49 DA01                       DA05 DC02 EA06 HB09 JA03                       LA04 LB17 LC07 MA02 MA05

Claims (15)

[Claims] 1. A washing / dehydrating tub is rotatably disposed in an outer tub supported in an outer box, and an intake port is formed at a position higher than an upper end of the washing / dehydrating tub to provide the washing / dehydrating tub. An electric washing machine, characterized in that a dehydration tub is rotated to take in outside air from the intake port, and the outside air taken into contact with the laundry in the washing / dewatering tub is brought into contact with the laundry. 2. A washing / dehydrating tub is rotatably arranged in an outer tub supported in an outer box, and an intake port is formed at a position higher than the upper end of the washing / dehydrating tub, and the dewatering process is completed. rear,
An electric washing machine, wherein the washing / dehydrating tub is temporarily stopped or continuously rotated for a predetermined period of time to take in outside air from the intake port, and the taken-in air is brought into contact with the laundry in the washing / dewatering tub. 3. The electric washing machine according to claim 1, wherein the outer box is provided with an exhaust port. 4. A rotary vane for stirring laundry is rotatably provided at an inner bottom portion of the washing / dehydrating tub, and a plurality of rotary vane ventilation holes are formed in the rotary vane. Two
The electric washing machine described in any one of the items. 5. The balancer provided at the upper end of the washing / dehydrating tub is provided with a rib for guiding the outside air taken in from the intake port into the washing / dehydrating tub. Electric washing machine. 6. The electric washing machine according to claim 1, wherein the number of rotations of the washing / dehydrating tub is variable. 7. The electric washing machine according to claim 1, wherein the rotation speed of the washing / dehydrating tub is changed. 8. The electric washing machine according to claim 1, wherein the washing / dehydrating tub is rotated in the left-right direction alternately in the left-right direction. 9. The electric machine according to claim 1, wherein a rotary vane is rotatably provided on an inner bottom portion of the washing / dehydrating tub, and the rotary vane is rotated during the rotation of the washing / dehydrating tub. Washing machine. 10. The electric washing machine according to claim 1, wherein the intake port is openable and closable. 11. The electric washing machine according to claim 1, wherein the air inlet is provided with an air filter. 12. The electric washing machine according to claim 11, wherein the air filter is removable. 13. An electric washing machine in which a washing / dehydrating tub is rotatably disposed in an outer tub supported in an outer box to wash and rinse laundry, and moisture is contained in the washing / dehydrating tub. The washing and dehydrating tub is rotated by the rotating force of the washing and dehydrating tub, and the rotation of the washing and dehydrating tub is controlled so that the laundry comes into contact with the air. An operation control method for an electric washing machine, comprising: 14. A fully automatic washing machine in which a washing / dehydrating tub is rotatably arranged in an outer tub supported in an outer box and the washing, rinsing and dewatering steps are automatically performed. After the process is completed, the washing / dehydrating tub in which the laundry is put is rotated, and the flow of air is taken into the washing / dehydrating tub by the rotating force of the washing / dehydrating tub to wash the laundry in the washing / dehydrating tub. A method for controlling an electric washing machine, comprising: controlling the washing / dehydrating tub so that the air and the air contact each other. 15. A fully automatic washing machine in which a washing / dehydrating tub is rotatably disposed in an outer tub supported in an outer box, and a washing process and a rinsing process are automatically performed after the rinsing process is completed. , Rotate the washing and dewatering tub where the laundry is loaded,
An air flow is taken into the washing / dehydrating tub by the rotational force of the washing / dehydrating tub, and the washing / dehydrating tub is controlled so that the laundry in the washing / dehydrating tub comes into contact with the air. Control method for electric washing machine.