ES2614489T3 - Washing machine control procedure - Google Patents

Abstract

Procedure for treating clothes in a washing machine (100) having a drum (130) rotated by a motor (140), the procedure comprising: - providing a first movement to the clothes based on a first movement of the drum (130); - providing a second movement to the clothes based on a second movement of the drum (130); - providing a third movement to the clothes based on a third movement of the drum (130); - providing a fourth movement to the clothes based on a fourth movement of the drum (130); - provide a fifth movement to the clothes based on a fifth movement of the drum (130); and - provide a sixth movement to the clothes based on a sixth movement of the drum (130); in which the first, second, third, fourth, fifth and sixth movements are different from each other, characterized in that - in the fifth movement, the drum (130) rotates alternately in a first and second direction, so that the clothes fall from a position of approximately less than 90 ° with respect to the respective direction of rotation of the drum (130), based on a reference position of 0 ° at a lower point of the drum (130), in which, in the fifth movement , the motor (140) stops the rotation of the drum (130) in the respective direction of the clothes falling in the position of approximately less than 90 ° based on the 0 ° reference position at a lower point of the drum (130) with respect to the respective direction of rotation of the drum (130), and then rotates the drum (130) in the other respective direction.

Description

image 1

image2

image3

image4

image5

image6

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

the needles of the drum clock, the motor stops the rotation of the drum and the clothes fall to the lowest point of the drum from the position of less than 90 ° with respect to the direction of the needles of the drum clock.

In this way, the rocking movement is a movement in which the rotation and stop with respect to a first direction and the rotation and stop with respect to a second (opposite) direction can be repeated. Visually, clothing that rises to a part of the second quadrant from the third quadrant of the drum is dropped smoothly, and rises again to a part of the first quadrant from a fourth quadrant of the drum and gently dropped, so repeated

In some embodiments, the engine 140 may use rheostatic braking and a load applied to the engine 140 whereby a mechanical abrasion of the engine 140 can be reduced, and the impact applied to the clothing can be adjusted. When using rheostatic braking, if a current applied to the motor is deactivated, the motor functions as a generator due to rotary inertia, and a direction of the current flowing in a motor coil will change to a reverse direction before the power is deactivated and a force (Fleming's right hand ruler) is applied along a direction that interferes with the rotation of the engine, to brake the engine. Unlike the reversible phase braking, the rheostatic braking does not generate sudden braking, but instead changes the direction of rotation of the drum smoothly. As a result, the clothes can move in the form of figure 8 over the third and fourth quadrants of the drum in the rocking motion. The swinging movement can generate a wash similar to a ‘clothing swing’.

Figure 3 (e) is a diagram of a scrubbing movement. In the rubbing movement, the motor 140 rotates the drum 130 both in the clockwise direction and in the opposite direction alternately and the clothes may fall from the position of more than 90 ° with respect to the direction of rotation of the drum .

That is, once the motor 140 rotates the drum 130 with a speed greater than the rotational reference speed (rotational turning speed), for example, approximately 60 RPM or more in the counterclockwise direction, the clothes located at the lowest point of the drum 130 are raised to a predetermined height in the counterclockwise direction. After the clothes pass through a position of approximately 90 ° with respect to the counterclockwise direction of the drum, the motor provides the drum with a reverse torque to temporarily stop the drum, and the clothes located on the surface Inner circumferential drum can fall quickly. As a particular result, the clothing located on the inner circumferential surface of the drum falls to the lowest point of the drum from the position of 90 ° or more with respect to the direction of the needles of the drum clock. In this way, the clothes can fall quickly from the predetermined height, in the rubbing movement. Motor 140 can use reversible phase braking to brake the drum.

In the rubbing movement, the direction of rotation of the drum changes rapidly and the clothes may not be far from the inner circumferential surface of the drum for a large amount of time. Therefore, an effect of a strong wash similar to a rub by maximized friction between the clothes and the drum can be achieved in the rubbing movement. In the rubbing movement, the clothes that have moved to a part of the second quadrant by means of the third quadrant quickly fall and fall again after moving back to a part of the first quadrant by means of the fourth quadrant. As a result, visually in the rubbing movement, the raised clothes fall along the inner circumferential surface of the drum repeatedly.

Figure 3 (f) is a diagram of the filtration movement. In the filtration movement, the motor 140 rotates the drum 130 so that the clothes do not fall from the inner circumferential surface of the drum, and the wash water is sprayed into the drum. That is, in the filtration movement, the clothes extend along and remain in close contact with the inner circumferential surface of the drum as the wash water is sprayed into the drum. Water is discharged out of the tank through the through holes 131 of the drum by centrifugal force. Since the filtration movement expands / widens a surface area of the clothes and allows water to pass through the clothes, the wash water can be supplied to the clothes evenly.

Figure 3 (g) is a diagram of the crushing motion. In the crushing motion, the motor 140 rotates the drum 130 so that the clothes are gripped to / not dropped from the inner circumferential surface of the drum using centrifugal force, and then the motor drops the rotational speed of the drum 130 to Temporarily separate the clothes from the inner circumferential surface of the drum. This procedure is repeated and the water is sprayed in the drum during drum rotation. That is, the drum rotates continuously at a sufficiently high speed so as not to drop the clothes from the inner circumferential surface of the drum in the filtration movement. On the contrary, in the crushing movement, the rotation speed of the drum changes to repeat the process of gripping and separating the clothes from the inner circumferential surface of the drum 130.

The spray of washing water in the drum 130 in the filtration movement and the crushing movement can be implemented by, for example, a circulation path and a pump. The pump can communicate with the bottom surface of the tank 120, with one end of the circulation path connected to the pump so that the washing water is sprayed from the tank to the drum by means of the other end of the circulation path.

In alternative embodiments, the wash water can be sprayed into the drum by means of a trajectory of

8 5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

supply connected to an external water supply source located outside the cabinet. That is, one end of the supply path connects with the external supply source and the other end thereof connects with the tank. If a nozzle is provided to spray wash water into the drum, the wash water can be sprayed into the drum in one or both of the filtration and squeezing movements.

Figure 4 is a diagram of the striking movement in more detail.

First, the clothes move from a lower point to a higher point of the drum 130 as shown in Figure 4 (a) - (c). As described with respect to the tank 120 which is still adjacent to the drum 130, the clothing received in the drum 130 moves from a position adjacent to the lowest point of the tank 120 to the highest point of the tank 120. For such movement of the clothing, the motor 140 applies a rotational force, namely, a torque of the drum in a predetermined direction, which is a clockwise direction as shown in the drawings, and the drum 130 rotates along the predetermined direction together with the clothes, to lift the clothes.

The clothes can rotate together with the drum, in close contact with an inner surface of the drum 130 by a frictional force with elevators and the inner circumferential surface of the drum 130. The clothes are raised to the highest point of drum 130, without separating from the drum 130 by rotating drum 130 at about 60 RPM or more, since this rotation speed generates a predetermined centrifugal force sufficient to prevent clothing from separating from drum 130 to the highest point of drum 130.

The rotation speed of the drum can change so that the centrifugal force generated is greater than gravity, allowing the clothes to rotate together with the drum from the lowest point of the drum 130, which is a predetermined point of the inner surface of the drum adjacent to the lowest point of the tank 120 to the highest point of the tank 120. The clothes are dropped from the highest point of the drum 130 to the lowest point of the drum 130 when the drum 130 suddenly brakes, as either at or just before the clothes reach the highest point of the drum 130.

Specifically, to stop the drum 130 suddenly, the motor 140 provides the drum 130 with a reverse torque. The reverse torque is generated by reversible phase braking configured to supply reversible phase currents to motor 140, as described in reference to Figure 3 (c). Reversible phase braking is a type of motor braking that uses a torque generated in a reverse direction with respect to a direction of motor rotation. A phase of a current supplied to the motor can be reversed to generate a reverse torque in a direction of reverse rotation of the motor and reversible phase braking allows sudden braking to be applied to the motor. For example, as shown in the drawing, a current is applied to the motor to rotate the drum clockwise and then a current is applied to the motor to rotate the drum counterclockwise. watch suddenly.

The timing point of the reversible phase braking with respect to the motor 140 may be closely related to the location of the clothing within the drum 130. Because of this, a device used to determine or predict the location of the clothing and a device can be provided. of detection such as, for example, a Hall effect sensor configured to determine a rotation angle of a rotor, may be examples of such a device. The control part can determine the rotation angle of the drum using the detection device and control the motor 140 in the reversible phase brake when or just before the drum has a rotation angle of 180 °. As a result, the drum rotated in the clockwise direction stops quickly in response to the torque in the counterclockwise direction. The centrifugal force applied to the clothing is removed and then the clothing falls to the lowest point.

Therefore, as shown in Figure 4 (d), the drum 130 rotates continuously in the clockwise direction and the rotation / fall of the clothes is repeated. Although Figure 4 shows that the drum rotates in the clockwise direction, the drum may rotate in the counterclockwise direction to implement the striking movement. The striking movement generates a relatively large load on the motor 140 and a net acting ratio of the striking movement can be reduced.

The net actuation ratio is a ratio of the motor drive time to a total value of the drive time and the engine stop time 140. If the net actuation ratio is '1', this means that the engine is driven without A time of detention. The striking movement can be implemented at approximately 70% of the net operating ratio, considering the motor load. For example, the engine can stop 3 seconds after a 10 second drive. Other ratios and times of activation / stop may also be appropriate.

Before the clothes that are falling reach the lowest point of the drum, that is, while the clothes fall, the drum 130 begins its rotation to implement the next striking movement. In this case, the drum 130 rotates at a predetermined angle and after this the clothes reach the lowest point of the drum 130. From this point, the clothes and the drum can rotate together. Although the drum rotates 180 ° as it fits, the clothes cannot rotate 180 °, that is, to the highest point of the drum 130 and cannot be dropped from the highest point to gain the desired washing capacity.

9 5

fifteen

25

35

Four. Five

55

Because of this, the drum 130 is controlled to rotate again as shown in Figure 4 (d) after the clothes reach the lowest point of the drum. That is, the drum remains at a stop until the clothes reach the lowest point of the drum. More specifically, at the moment when the clothes really start to fall, the stopping of the drum 130 is generated. From the point of fall in time to the point where the clothes reach the lowest point of the drum, the drum remains stopped and not broken. The stopped time may be longer than the time it takes for the clothes to fall to the lowest point (point 1) from the highest point of the drum. As a result, the drum may remain stopped for, for example, 0.4 seconds, or in some embodiments, 0.6 seconds, to ensure sufficient time in the stop state. This allows the striking stage to be implemented more precisely to generate the maximum impact and the desired washing capacity can be achieved accordingly.

Figure 5 is a diagram of the scrubbing movement in more detail.

First, the clothing moves from the lowest point of the drum 130 to a position achieved after 90 ° or more rotation clockwise of the drum 130, as shown in Figures 5 (a) - ( C). As described with respect to the tank 120 which is standing adjacent to the drum 130, the clothes inside the drum 130 moves from the predetermined point of the surface of the inner drum adjacent to the lowest point of the bowl 120 to the point of the inner drum surface rotated 90 ° or more along the clockwise direction of the drum 120. To generate such movement of the clothes, the motor applies a rotational force, that is, a torque to the drum 130 in a predetermined direction, (clockwise direction) and then drum 130 rotates along with the clothes to lift the clothes.

The clothes rotate together with the drum, in close contact with the inner circumferential surface of the drum 130 by the elevator and friction with the inner circumferential surface of the drum, and is not separated from the drum 130. Thus, the drum rotates at about 60 RPM or more to generate enough centrifugal force so that the clothes do not separate from the drum 130. The speed of rotation of the drum can be set to generate a centrifugal force greater than gravity taking into account the size of the drum, such as an inside diameter. As a result, the clothes rotate together with the drum from the lowest point of the drum to the position of 90 ° or more rotation with respect to the lowest point of the drum.

The clothes then fall from the position of 90 ° or more rotation to the lowest point. Since this fall of the clothes, the drum 130 suddenly brakes when the clothes reach the position of 90 ° or more drum rotation. The motor 140 provides the drum 130 with a reverse torque to apply the sudden brake to the drum. As mentioned above in reference to Figure 3 (e), the reverse torque is a reverse torque generated by reversible phase braking configured to deliver reversible phase currents to motor 140.

The control part can determine a rotation angle of the drum using a detection device as described above. Once the rotation angle of the drum is 90 ° or more, the control part can control the motor 140 to brake in reversible phase. As a result, the drum 130 rotating in the clockwise direction is provided with a torque in the counterclockwise direction to momentarily stop the rotation and remove the centrifugal force applied to the clothing. As shown in Figure 5 (c), clothing may not fall perpendicularly by the torque of the counterclockwise direction, but may fall to the lowest point of the drum obliquely towards the inner circumferential surface of the drum . Due to the inclined fall, the clothes can have a relatively large amount of friction with the inner surface of the drum in the middle part of the fall and simultaneous friction between the items of clothing and between the clothes and the wash water can be relatively big.

Therefore, as shown in Figure 5 (d), the drum 130 rotates counterclockwise continuously and the rotation / fall of the aforementioned clothing can be repeated. Figure 5 shows that the drum rotates in the clockwise direction earlier but the rotation in the counterclockwise direction can be implemented earlier. The rubbing movement generates a relatively large load that is applied to the motor 140, such as the striking movement, and that net operating ratio of the rubbing movement can be reduced, for example, a 3-second stop after the rubbing movement can be repeated and the net acting ratio of the rubbing movement can be controlled to be at 70%. Other provisions may also be appropriate.

Before the falling clothes reach the lowest point of the drum, that is, while the clothes fall, the drum 130 begins its reverse direction rotation to implement the next striking movement. In this case, the drum 130 rotates at a predetermined angle and after that the clothes reach the lowest point of the drum 130. From this point, the clothes and the drum can rotate together. Although the drum rotates 90 ° while adjusting, the clothes cannot rotate 90 °, that is, to the highest point of the drum 130 and cannot fall from the highest point to gain the desired washing capacity.

Therefore, the drum 130 rotates again, as shown in Figure 5 (d) after the clothes reach the lowest point of the drum. That is, the drum is controlled to hold the stop until the clothes reach the lowest point of the drum. More specifically, at the moment when the clothes actually start to fall, drum 130 is stopped. From the point in time the clothes fall until the clothes reach the

10 5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

lowest point of the drum, the drum remains in the stopped state and does not rotate. The time period of the drum stop state may be longer than the time it takes for the clothes to fall to the lowest point of the drum. As a result, the stop state maintained by the drum can be set to, for example, 0.2 seconds, which is less than the stop state of the drum in the striking movement.

As such, the state of detention maintained by the drum is adjusted, the striking movement can be implemented more precisely to generate maximum friction between the inner surface of the drum and the clothes, the maximum friction between items of clothing and the maximum friction between the clothes and washing water and the desired washing capacity can be achieved accordingly.

Figure 6 is a graph that compares the washing capacity and vibration level of each movement shown in Figure 3. A horizontal axis presents the washing capacity, with an easier separation of contaminants contained in the clothes that move towards the left. A vertical axis presents the level of vibration or noise, with higher levels that move up, reducing the washing time for the same clothes.

The beating movement and the rubbing movement are appropriate for washing programs implemented to reduce the washing time when the clothes have many contaminants. The striking movement and the rubbing movement have a high level of vibration / noise and are not normally used to wash sensitive tissue and / or to minimize noise and vibration.

The rotation movement has a good washing capacity and a low level of vibration, with minimized damage to the clothes and a low engine load. As a result, the rotational movement can be used in all washing programs, especially to help dissolve detergent in an initial wash phase and to soak clothes.

The turning movement has a washing capacity lower than the rubbing movement and an intermediate vibration level compared to the rubbing movement and the rotation movement. The rotation movement has a lower vibration level but has a longer wash time than the flipping movement. Therefore, the flipping movement can be applied to all washing programs and can be effective in the washing program to distribute clothes evenly.

The crushing movement has a washing capacity similar to the turning movement and a vibration level greater than the turning movement. The crushing movement repeats the procedure of extracting the clothes towards and separating the clothes from the inner circumferential surface of the drum. In this procedure, the wash water is discharged out of the drum after passing through the clothes. In this way, the crushing movement can be applied to the rinse.

The filtration movement has a washing capacity lower than the crushing movement and a noise level similar to the rotational movement. In the filtration movement, water passes through the clothes and is discharged out of the drum, with the clothes in close contact with the inner circumferential surface of the drum. As a result, the filtration movement can be applied to a program to soak clothes.

The balancing movement has the lowest vibration level and washing capacity and can be applied in a low noise and low vibration washing program and a program for washing sensitive or delicate items.

As mentioned before, each drum drive movement has its own advantages and it is preferred that various drum drive movements are used to maximize the advantages. Each drum drive movement can also have advantages and disadvantages in relation to the amount of clothing. Even in the case of the same program and cycle, the various drum drive movements can be applied differently depending on the relationship with the amount of clothing.

An interior of the drum in the drum-type washing machine can be visible from the outside through the door. The various drum drive movements can be implemented in a washing program that will be described below. As a result, the user can see the various drum drive movements implemented inside the drum. That is, a gentle shock type wash (flip motion), a strong shock type wash (knock motion), a soft rub type wash (rotation movement) and a strong rub type wash ( rubbing motion) can be visibly identified. Therefore, the user can detect that the washing is well implemented, which can generate improved user satisfaction in addition to the substantially improved washing efficiency.

III. WASHER PROGRAMS

Various control procedures, that is, various programs of a washing machine as incorporated and described extensively herein, will now be analyzed.

eleven

image7

image8

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

A stage of soaking clothes can be implemented to promote soaking clothes. This stage can be implemented after implementing the water supply stage to a predetermined degree or until the water supply stage is completed to ensure that the clothes become sufficiently saturated. Alternatively, the detergent dissolution promotion stage can be implemented after the water supply is completed. The water level decreases at the stage of soaking clothes and an additional water supply can be implemented.

The clothes soaking stage can be partially implemented in the detergent dissolution promotion stage mentioned above and a water level can be increased sufficiently to allow the wash water to be collected inside the drum. Therefore, the clothing soaking promotion stage can be implemented after the detergent dissolution promotion stage. A drum drive movement of the clothing soaking promotion stage can be controlled differently compared to that of the detergent dissolving promotion stage. For example, the drum drive movement of the clothing soaking promotion stage may include a rotation movement and / or a filtration movement. In some embodiments, the filtration movement and the rotation movement can be implemented sequentially.

The filtration movement is a movement in which the clothing is widely distributed to widen the surface area of the clothing, and in this way the filtration movement can be used to soak the clothes evenly. The rotation movement is a movement in which the clothes are repeatedly turned to make the washing water contained under the drum in contact with the clothes in a uniform manner, and the rotation movement can also be applied in the soaking of clothes. To utilize these effects as much as possible, different drum drive movements, that is, a repeated / sequential implementation of the filtration and rotation movements in a predetermined order, can maximize the effect of the clothing soaking promotion stage.

If the amount of clothing is at a predetermined level or higher, the drum drive movement of the clothing soaking promotion stage may include the filtration movement. That is, in the filtration movement, the surface area of the clothes widens and the washing water is supplied in the filtration movement, and the clothes are distributed evenly without getting entangled and the clothes water is supplied to the clothes evenly. . As an alternative, or in addition to the filtration movement, the flipping movement can also be implemented.

If the amount of clothing is less than the predetermined level, a filtration and / or flipping movement can be employed during the clothing soaking promotion stage.

The user can select a level of contamination of the clothing from the action selection part 118 and a net engine performance ratio can be differentiated according to this selection. However, the net performance ratio in the water supply stage may not be differentiated according to the level of contamination selected, since the net performance ratio in the water supply stage is established in advance to optimize the dissolution of water detergent and soaking clothes, and because the worry of unnecessary damage to clothes can not be ignored. If the net performance ratio decreases, detergent dissolution and clothing soaking cannot be sufficiently implemented.

The water supply stage in the standard program may include the detergent type determination stage, the detergent dissolution promotion stage and the clothing soaking promotion stage described above. In alternative embodiments, the detergent type determination stage, the detergent dissolution promotion stage or the clothing soaking stage can be provided regardless of the water supply stage. In this case, the detergent determination stage, the detergent dissolution promotion stage or the clothing soaking stage can be implemented after the water supply is completed.

A.1.3 Heating (S740):

The wash cycle includes the wash stage. To prepare for washing, a heating stage can be implemented between the washing and water supply stages.

The heating stage can be configured to heat the wash water using the heater provided under the tank or to increase the temperature of the wash water or the drum using steam supplied inside the drum. Therefore, the heating stage can be implemented or omitted as necessary. That is, if cold air or water is used to treat the clothing, the heating stage may not be implemented. However, if the wash water temperature is set in advance to be higher than the cold water temperature due to a default temperature associated with a selected program, or if the wash water temperature is selected to be higher than the Cold water temperature from option selection part 118, the heating stage can be implemented.

14 5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

The drum drive movement in the heating stage can be differentiated according to the amount of clothing. A flipping movement can be implemented in the heating stage regardless of the amount of clothing. However, as mentioned before, if the amount of clothing is at the predetermined or lower level, the rotation movement can be implemented in the heating stage. That is, in the case that the clothes are relatively small, repeated turning of the clothes in the lower portion of the drum may be more effective in heating and washing than the distribution of the clothes. Alternatively, with a small amount of clothing in the heating stage, a combination of the turning and rotating movements can be used, and with a large amount of clothing, the turning movement can be used.

The heating stage may include a heating preparation stage configured to prepare the heating after the water supply stage. This means that the water supply stage is completed after completing the soaking of clothes. As a result, it is possible to determine the amount of clothing more precisely after the water supply stage, because soaked clothing items cannot be distinguished from dry clothing items based on the amount of clothing before soaking clothes. For example, the amount of soaked clothing items can be determined as greater than the current amount, before soaking clothes. As a result, in some embodiments, a more precise amount of clothing determination stage can be implemented in the heating stage, before washing. If the heating stage is omitted, a stage corresponding to the heating preparation stage can be implemented to determine the precise amount of clothing. That is, if the heating stage is omitted, the precise amount of clothing determination stage can be implemented before the washing stage after the water supply stage is completed.

A.1.4 Washing (S742):

Once the water supply stage and the heating stage described above are completed, the washing stage configured to wash the laundry can be implemented. A drum drive movement in the washing stage can be a sequential combination of the beating and / or turning and / or rotation movements to apply a strong mechanical force and move the clothes in various patterns to improve the washing efficiency.

Alternatively, the drum drive movement in the washing stage can be a sequential combination of the filtration movement and the turning movement to continuously supply washing water to the laundry to improve the washing efficiency generated by the detergent, as well as the washing efficiency generated by the mechanical force applied to the clothes.

As a result, the drum drive movement in the washing stage can be differentiated according to the amount of clothes because the drum drive movement capable of generating an optimal washing effect can be different depending on the amount of clothes. The amount of clothing may be the amount of clothing determined before the water supply stage or in the heating stage. In the washing stage, the drum drive movement can be differentiated according to the amount of clothing determined after the water supply stage.

If the amount of clothing is at a predetermined or higher level, the drum drive movement may include the filtration movement and / or the turning movement. If the washer is not equipped to circulate the wash water, only the turning movement can be implemented. In the case of a large number of clothes, the wash water can be supplied to the clothes evenly and the mechanical force can be applied to the clothes simultaneously to improve the washing efficiency.

If the amount of clothing is at a predetermined level or less, the drum drive movement may include a knocking movement and / or a rotation movement to improve washing efficiency since the clothes move in various patterns with force mechanics applied to clothes. In some embodiments, the flipping movement can also be implemented with the striking movement and / or the rotational movement.

As mentioned above, in the standard program, the drum drive movement in the water supply stage, the heating stage and the washing stage can be diversified and the efficiency of the washing cycle can therefore be improved. In addition, the drum drive movement in each of the stages can be differentiated according to the amount of laundry in the drum and the optimized wash cycle can be implemented accordingly.

If the user selects a level of contamination of the clothing from the option selection part 118, the net performance ratio of the heating stage and the washing stage can be differentiated. If the net performance ratio is unnecessarily high in a case where the level of contamination is relatively low, the clothing would be unnecessarily damaged.

A.2 Rinse cycle (S750):

A control procedure of a wash cycle in program A is described in reference to Figure 7. According to this embodiment, the rinse cycle can be implemented as part of a single program, together with the wash cycle described above, Or it can be implemented independently. Simply for ease of

fifteen

image9

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

by continuously rubbing the clothes under the wash water after immersing the clothes in the washing water. The flipping and hitting movements correspond to a procedure of repeatedly moving the clothes in and out of the wash water. As a result, the first drum drive stage can control the drum to actuate in the rubbing and / or balancing movement, with a high water level, and allow the user to visually recognize that sufficient rinse has been implemented. In alternative embodiments, a circulation stage configured to circulate the wash water contained in the tub in the drum can be implemented in the first drum drive stage. The wash water is sprayed in the drum to rinse the clothes. This procedure can be called ‘spray rinse’. This also shows a user, as it can be visible through the door, which has been sufficiently enlightened.

Once the first drum drive stage has been completed, a first intermediate drain and spin stage (S754) can be implemented. During water drainage, the drum can be actuated in the movement of knocking and / or turning. The clothes are raised and dropped to improve washing efficiency and bubbles are generated to improve rinse efficiency. The drum drive movement can be differentiated according to the quantity of clothes. In the case of a small amount of clothing, the drum is actuated in the striking movement to generate the maximum distance between the elevation and the fall. In the case of a large amount of clothing, the drum can be operated in the flipping motion.

The intermediate spin can be implemented at approximately 100 to 110 RPM in the first drain and the intermediate spin. Then, the clothing unraveling stage, the vibration detection stage and the acceleration stage can be omitted and the time required can be significantly reduced.

In alternative embodiments, in the first stage of intermediate drainage and centrifugation in a standard program, the intermediate centrifuge can be implemented at approximately 400 RPM more than the low resonance frequency. In this case, the beating and / or turning movement can be implemented when the water is drained and the clothes are distributed sufficiently. Therefore, the unraveling stage of clothing can be omitted. Even at a rotation speed higher than the low resonance frequency, intermediate spinning can be implemented for a short time, with the vibration detection stage and the single acceleration stage. Such intermediate centrifugation can be implemented at relatively high RPM to discharge detergent residues and contaminants that cannot be discharged by means of the high speed centrifuge stage. However, in a case where the amount of vibration measured in the vibration detection stage is outside an allowable range, the vibration detection stage may be repeated so that it cannot enter the acceleration stage, and the time Rinsing may be disadvantageously increased. Therefore, the vibration detection stage can be implemented at the drum speed of approximately 100 to 110 RPM and in the event that the acceleration stage does not start within predetermined times of implementations of the vibration stage, the first stage Drain and intermediate spin can finish.

A.2.2 Second rinse (S756) and final rinse (S760):

A second rinse stage (S756) can follow the first rinse stage. The second rinse stage may include a second drum drive stage (S757) and a second intermediate drain and spin stage (S758). The second drum drive stage can be essentially the same as the first drum drive stage described above. In addition, the second stage of intermediate drainage and centrifugation can be essentially the same as the first stage of intermediate drainage and centrifugation. However, intermediate spinning is implemented at approximately 100 to 110 RPM in the second drain stage and intermediate spinning to reduce the rinse time, because the detergent residue has already been discharged in the high speed spinning stage and the first Drainage stage and intermediate spin.

The rinse cycle can make use of the result of the determination of the step of determining the type of detergent.

If the detergent is of the liquid type, a relatively small amount of detergent can remain and the second rinse stage can be omitted to reduce the time required for the rinse cycle. If the detergent is a powder type, the first rinse stage and the second rinse stage can be performed by default.

If the detergent is of the liquid type, a third rinse stage (S760) can function as a final rinse stage after the first rinse stage. If the detergent is a powder type, a third rinse stage can function as a final rinse stage after the second rinse stage. However, when bubbles are detected in the third rinse stage (in the case of powder type detergent), a fourth rinse stage can be implemented as the final rinse stage.

A water level of the final rinse stage (S760) can be a relatively low level. In the case of an inclined drum type washer having a inclined drum at a predetermined angle, a water level may be a predetermined level sufficient to supply water only to a predetermined rear portion of the inclined drum. That is, the water level may be such that it is not detected, or is not visible outside the washing machine. However, such water level is predetermined so as not to generate any more bubbles in the clothes. Even if I know

17 5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

They generate bubbles, the bubbles are generated in the tank, not in the drum, to avoid excess accumulation. As a result, the user can visually identify that no bubbles are generated in the final rinse stage and the satisfaction of the rinse performance can be improved.

A third drain stage (S762) can be implemented after the third drum drive stage (S761) in the final rinse stage, to implement the spin cycle. The drum can be operated in the beating and / or rubbing movement to distribute the clothes evenly in the third drainage stage.

A.3 Spin cycle (5770):

A centrifugal cycle control procedure in the standard program will be described in reference to Figure

7. The spin cycle can be implemented as part of the standard program, together with the wash cycle and the rinse cycle, or independently as a single program. Simply for ease of analysis, a spin cycle control procedure implemented after the wash cycle and the rinse cycle that make up the standard program will be described.

A.3.1 Detangling of clothes (S771):

The spin cycle may include a stage of detangling clothes configured to untangle the clothes by operating the drum to distribute the clothes evenly. The spin cycle is provided to minimize the vibration generated when the drum rotates at a high speed. If the drum is operated in the beating and / or rubbing movement in the drainage stage just before the spin cycle, it is likely that the clothing will be unraveled to a predetermined degree by the beating and / or rubbing movement and the time required for the stage of unraveling clothes can be significantly reduced.

A.3.2 Eccentricity measurement (S773):

After the clothing unraveling stage, the amount of eccentricity, with the rotation of the drum at predetermined RPM lower than the low resonance frequency for a predetermined period of time, can be measured by accelerating the drum and determining if the clothes are distributed evenly inside the drum

An eccentricity measurement stage of a spin cycle in a standard program according to another embodiment can be implemented before the clothing unraveling stage. A significant amount of clothing unraveling may have been implemented by the drum drive movement of the rinse cycle. As a result, the spin cycle can be started with the eccentricity measurement step to reduce the spin cycle time. If the measured eccentricity compared to a reference eccentricity value is determined satisfactory, the acceleration, which will be described below, can be implemented. If the measured eccentricity is not satisfactory compared to the reference eccentricity value, the clothing detachment stage can be implemented. The drum can be actuated in the striking movement in the clothing unraveling stage to promote the unraveling of clothing and the eccentricity measurement stage can be restarted after the clothing unraveling stage.

A.3.3 Acceleration and normal centrifugation (S775):

After the eccentricity measurement stage, an acceleration stage of the drum rotation up to normal spin RPM (acceleration stage) can be implemented. After this, a normal spin stage configured to rotate the drum at normal spin RPM can be implemented to complete the spin cycle. The rotation speed of the normal spin drum can be set to approximately 1000 RPM by default. That is, the amount of moisture contained in the clothing can be reduced as much as possible to minimize detergent residue. The RPM of the normal spin can be changed according to the user's selection, since the RPM of the normal spin is related to a residual moisture level and a wrinkle level of the clothes after the spin cycle is completed. As a result, the user can select the RPM of the normal spin stage, in reference to a moisture level and a wrinkle level of the clothing.

B. PROGRAM B (HEAVY POLLUTANTS PROGRAM):

A heavy contaminant program B in which a lot of dirt must be removed from the articles of clothing will be described in reference to Figure 8. The heavy contaminant program can be selected in part 117 of program selection (S810).

B.1 Washing cycle (S830):

B.1.1. Determination of quantity of clothing (S831):

Once the heavy contaminant program is selected, a step of determining the amount of clothes can be implemented to determine the amount of clothes loaded in the drum. The procedure for determining the quantity of clothing may be similar to that described above with respect to the standard program, and thus a repeated description thereof will be omitted, therefore. The clothing determination stage could

18

image10

image11

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

C. PROGRAM C (FAST INVESTMENT PROGRAM):

Program C will be described in reference to Figure 9. Program C may be referred to as the "rapid boil program" configured to heat the wash water to a predetermined temperature for a relatively short time to achieve a sanitary boiling effect of clothing, such as in a disinfection cycle.

Normally, when the clothes are sterilized and bleached, the washing water contained in the tank is heated to a predetermined "set temperature" and then the washing is implemented. Since the washing time is relatively long and the electrical power consumed is enough to heat the washing water only, it takes a long time and a lot of electrical power to heat the washing water contained in the tank to the preset temperature. In the rapid boil program, clothes can be sterilized and bleached while also reducing overall washing time and power consumption. The rapid boil program heats the wash water supplied to the tank for a preset period of time, regardless of the temperature of the wash water, instead of heating the washing water until the washing water reaches the preset temperature. To take into account the washing capacity, a time compensation stage of a washing stage provided in the rapid boiling program according to the temperature of the washing water can be included in this washing program, as will be described in reference. to Figure 9.

First, the user can select the rapid boil program from the program selection part 117 (S910). Then, the control part implements a time adjustment stage of the washing stage of the rapid boiling program. This stage of setting the washing time allows the control part to determine the time required for the washing stage of the rapid boiling program, which is stored in a storage device, such as a memory. That stage can be implemented simultaneously with the program selection stage or a water supply stage.

C.1 Washing cycle (S930):

C.1.1 Determination of the amount of clothing and adjustment of the washing time (S931):

Once the user selects the rapid boil program, the control part can implement a clothing quantity determination stage configured to measure the quantity of clothing and a washing time adjustment stage configured to establish the time needed for a washing stage of the rapid boil program based on the amount of clothing determined. The control part may use the time it takes to rotate the drum to a predetermined position to determine the amount of clothing, as described above, or the residual rotation time after drum rotation for a predetermined time.

In the step of adjusting the washing time, the control part can select a washing time corresponding to the amount of clothing measured from appropriate times stored in the memory. The variety of time required by the wash stage of the rapid boil program is stored in the storage device, such as memory, so that, when the rapid boil program is selected, an appropriate time stored in the memory can be selected. through the control part.

C.1.2 Water supply (S933):

The wash cycle of the rapid boil program may include a water supply stage configured to supply wash water to the tank. In the water supply stage, the control part controls the water supply device (water supply path and water supply valve) connected to the water supply source and the tank to supply water to the tank. In addition, the control part controls the drum to be operated in a drum drive movement similar to the drum drive movement of the water supply stage of, for example, the heavy pollutant program described above, and thus, an additionally detailed description will be omitted.

C.1.3 Water temperature / Compensation measurement stage (S935):

Once the water is supplied to the tank, the control part measures the temperature of the washing water using a temperature sensor provided in the washing machine and compares the measured temperature with a reference temperature to adjust the time of the washing stage .

For example, the control part can compare the measured temperature of the wash water with a reference temperature, for example, greater than about 50 ° C. If the measured temperature is higher than the reference temperature, for example, if the heated water is supplied to the tank, the control part can implement the washing step directly. However, if the measured temperature is lower than the reference temperature, the control part may implement a compensation stage configured to adjust the washing stage time.

As mentioned before, the washing step can be implemented after heating the washing water for a predetermined period of time in this program, regardless of the water temperature. Therefore, the temperature of the wash water contained in the tank may be different, depending on the

21 5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

temperature of the water supplied to the tank after the completion of the heating stage, and therefore there would be differences in the washing capacity due to differences in the temperature of the water. As a result, the compensation stage is provided to minimize differences in the washing capacity caused because the washing water has different temperatures after the heating stage. If the washing water temperature is lower than the reference temperature, the washing stage time is increased to compensate for the washing capacity at the lower temperature.

The number of reference temperatures used to define a temperature range can be appropriately adjustable. For example, in one embodiment, a single reference temperature may be provided, and in alternative embodiments, a plurality of reference temperatures may be provided. When the temperature of the wash water is higher than a first reference temperature (for example, 50 ° C) and there are three reference temperatures, that is, a first, a second and a third reference temperature are provided, the part of Control can implement the washing stage immediately. When the measured temperature of the wash water is lower than the first reference temperature and greater than the second reference temperature, the second reference temperature (for example, 40 ° C), which is lower than the first reference temperature (for 50 ° C), and when the measured temperature is lower than the second reference temperature and greater than the third reference temperature, the third reference temperature (for example, 30 ° C) which is lower than the second reference temperature (for example, 40 ° C), and when the measured temperature is lower than the third reference temperature, the compensation stage configured to compensate the time of the preset washing stage in the washing time adjustment stage is performed.

When the washing stage time is compensated, the control part can control the compensated time to be different depending on the temperature of the washing water. The washing capacity is substantially in proportion to the temperature of the washing water. Therefore, the lower the measured temperature of the wash water, the greater the time compensated. The reference temperature and the time interval added in the compensation stage can be set in advance based on the capacity of the washing machine and other such factors.

C.1.4 Heating (S937):

Once the preset time of the washing stage is compensated in the compensation stage, a heating stage configured to remove contaminants contained in the clothes by means of a drum movement and to heat the washing water simultaneously can be implemented during a period of default time The heating stage can be implemented as an independent stage or as part of a washing stage to be described below. Simply for ease of analysis, in this program description, the heating stage will be described as part of the washing stage.

C.1.5 Washing (S939):

A drum-driving movement of the washing stage of the rapid boiling program may include the striking movement and / or the turning movement and / or the rotation movement.

The striking movement has excellent washing capacity and applies the impact to the clothing so that the contaminants attached to the clothing can be separated and the washing time can be reduced. As a result, the control part can rotate the drum in the striking movement at an initial stage of the washing stage. In this case, the heating stage can be implemented after the striking movement of the washing stage.

In the striking movement, the drum is rotated at a predetermined speed allowing the clothes not to fall from the inner circumferential surface of the drum due to centrifugal force. When clothes are placed near the highest point of the drum, a reverse torque is applied to the drum. Since the net operating ratio of the striking movement is adjusted, the load applied to the motor is greater in the striking movement than in other movements. Therefore, if the heating stage configured to heat the wash water continues during the striking movement, the energy consumption would increase and a safety problem could occur due to the increase in the amount of current. As a result, the heating stage can be implemented for a predetermined period of time after the striking movement is completed.

The heating stage is configured so that the heater is not activated for a preset heating time period, and not necessarily until the temperature of the wash water reaches the preset value. This allows the time and electrical power necessary for the washing stage to be accurately predicted and the user to be notified of the predicted data. Furthermore, the washing stage can be implemented only essentially during the same preset time, regardless of the temperature of the washing water supplied in the washing stage, so that the energy consumption and the washing time can be reduced.

Therefore, the control part can control the turning movement and / or the rotation movement to be implemented. In this case, the turning movement and / or the rotation movement can be implemented simultaneously with the start of the heating stage. The turning movement and the rotation movement apply a low load to the motor and have a good washing capacity, with a reduced washing time. As a result, the movement

22 5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

Turning and rotating movement can achieve an effect of reducing the washing time required by the washing stage and an effect of an appropriate washing capacity even with the washing stage implemented using the washing water having different temperatures.

C.2 Rinse cycle (S950):

A rinse cycle of the rapid boil program may be similar to the rinse cycles of the programs described above and the rinse cycles of other programs to be described below. In this way, a detailed and additional description thereof will be omitted.

C.3 Spin cycle (S970):

A spin cycle of the rapid boil program may be similar to the spin cycles of the programs described above and the spin cycles of the other programs which will be described below. Thus, a detailed and additional description thereof will be omitted.

D. PROGRAM D (COLD WASH PROGRAM):

A cold wash program D will be described in reference to Figure 10. The cold wash program D is configured to wash clothes without heating the wash water, providing energy savings without degrading a desired washing capacity. As a result, this program measures the temperature of the wash water supplied in the tank, the measured temperature is compared with a preset temperature and the operating parameters are adjusted accordingly, allowing the washing capacity to be maintained. For example, if the temperature of the wash water does not reach a reference temperature based on the result of the comparison, the wash time is sufficiently compensated to provide a target wash capacity in the cold wash program.

First, the user can select the cold wash program from the program selection part 117 (S1010). Once the user selects the cold wash program, the control part can implement a wash cycle, a rinse cycle and / or a spin cycle sequentially or selectively.

D.1 Washing cycle (First embodiment) (S1030):

D.1. Determination of the amount of clothing / Adjustment of the washing time (S1031):

Once the user selects the cold wash program, the control part can implement a clothing quantity determination stage configured to measure the quantity of clothing and a washing time adjustment stage configured to establish the required time for a washing stage of the cold wash program based on the measured amount of clothing. In the step of determining the amount of clothing, the control part may use the time it takes to rotate the drum to a predetermined position or the residual rotation time of the drum, to measure the amount of clothing, as described above. . In the step of adjusting the washing time, the control part can select a washing time corresponding to the amount of clothes measured from appropriate times stored in the memory according to the amount of clothes.

D.1.2 Water supply (S1033):

The wash cycle of the cold wash program may include a water supply stage configured to supply wash water to the tank. In the water supply stage, the control part controls the water supply device (for example, water supply path and water supply valve) connected to the water supply source and the tank for supplying water to the Cuba In addition, the control part controls the drum to be operated in a drum drive movement similar to the drum drive movement of the water supply stage of the heavy contaminant program or the rapid boil program described above. In this way, a detailed and additional description thereof will be omitted.

D.1.3 Water temperature measurement / Washing time compensation (S1035):

Once the wash water is supplied to the tank, the control part can measure the temperature of the wash water using a temperature measuring device provided in the washing machine. The control part can compare the measured temperature with a reference temperature (for example, 15 ° C). If the measured temperature of the wash water is the reference temperature or more, the control part can implement the washing step without compensating the washing time according to the amount of laundry. If the measured temperature is lower than the reference temperature, the control part can implement the washing time compensation stage. In this example, the temperature of '15 ° C 'is presented as an example of a critical temperature capable of ensuring a wash capacity in a cold wash and a reference temperature of a wash capacity test using cold water. As a result, if the measured temperature of the wash water is lower than the reference temperature, the control part can adjust the time of the washing stage set in the washing time adjustment stage. For example, if the measured temperature is lower than the reference temperature, the control part may add a predetermined time to the washing stage time to avoid deterioration of the

2. 3

image12

image13

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

lint and carding problem and a rinsing stage. Next, the steps will be described in detail.

E.1 Washing cycle (First embodiment) (S1330):

E.1.1 Water supply (S1331):

In a water supply stage, the control part controls the cold water to be supplied to the tank. Color migration may more likely occur in higher temperature wash water. In the water supply stage, the control part can control the motor to drive the drum in the rocking motion or the filtration movement or a combination thereof. The water supply stage can be provided to supply wash water required for washing the laundry in the tank and for soaking the laundry loaded in the drum in the washing water. As a result, the drum is actuated in the filtration movement in the water supply stage so that the soaking of clothes can be effectively implemented. In addition, the drum can be operated in the balancing movement in the water supply stage, rather than in the filtration movement. The rocking motion can minimize the movement of the clothes inside the drum, compared to the other movements, to minimize the generation of lint and carding that can be generated by the frictional force between the clothing items.

E.1.2 Water temperature / heating measurement stage (S1333):

Once the water supply stage is completed, the control part can measure the temperature of the wash water supplied to the tank. When the measured temperature is the reference temperature or more (for example, 30 ° C or 40 ° C), the control part can start the washing step immediately. When the measured temperature is lower than the reference temperature (for example, cold water because the washing water supplied in the water supply stage is cold water), the control part can initiate a heating stage configured to heat the water washing In some embodiments, the temperature (reference temperature) of the washing water that allows the washing stage to start can be set at 30 ° C or 40 ° C, because the temperature of the washing water capable of maximizing the washing capacity, While color migration is minimized, it is in the range of 30 ° C to 40 ° C.

The heating stage heats the wash water supplied to the tank using a heater provided on the bottom surface of the tank or a steam generating device configured to supply steam to the tank.

E.1.3 Washing (S1335):

When the heating stage allows the washing water temperature to reach the reference temperature (30 ° C or 40 ° C), the control part can initiate a washing stage. In the washing stage, the control part can control the drum to be operated in a drum-driving movement that can minimize the force of mechanical friction to avoid lint and carding and to achieve the desired washing capacity. For example, the control part can control the drum to actuate in the swinging movement and / or the striking movement, in the washing stage of this program. Such hitting and swinging movement can be implemented sequentially and sequential implementation can be repeated.

The rocking motion rotates the drum in both opposite directions and drops the clothes from a position of approximately 90 ° or less with respect to the direction of rotation of the drum. The rocking motion applies rheostatic braking to the engine, because the physical friction applied to the clothing can be reduced as much as possible, while maintaining a predetermined level of washing efficiency. As a result, the possibility of lint and carding, which can be generated by friction between the items of clothing or between the clothes and the drum, can be minimized.

As mentioned before, the striking movement rotates the drum at a predetermined speed allowing the clothes not to fall from the inner circumferential surface of the drum by centrifugal force and then apply the sudden brake to the drum to maximize the impact applied to the drum. clothes. Therefore, the striking movement has an excellent washing capacity, and sufficient to compensate for an insufficient washing capacity of the swinging movement. The amount of time during which the striking movement is performed may be less than the amount of time during which the balancing movement is performed to minimize the possibility of lint and carding.

E.1 'Washing cycle (Second embodiment) (S1430):

Figure 14 is a diagram of a color article program according to a second embodiment. Unlike the previous program according to the first embodiment, the color article program according to the second embodiment allows a water temperature measurement stage and a heating stage to be implemented in a washing stage (S1433) after of a water supply stage (S1431). If the water temperature measurement stage and the heating stage are implemented before the washing stage, the washing time would be disadvantageously increased. As a result, this embodiment presents a program of color articles capable of reducing the washing time compared to the previous embodiment.

26

image14

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

F.1.1.2 Second water supply (S1535):

Once the first water supply is completed, a second water supply can be implemented for a predetermined period of time. In the second water supply, the wash water is supplied continuously and the filtration movement and the balancing movement are implemented sequentially. The first and second stages of water supply can be classified according to a pre-established time. The time of each stage can be adjusted according to the amount of clothing and other parameters as appropriate. Therefore, a clothing quantity determination stage configured to determine the quantity of clothing can be provided before the water supply stage.

As mentioned before, the filtration movement rotates the drum at a high speed to generate the centrifugal force and the clothes are in close contact with the inner circumferential surface of the drum due to the centrifugal force. In addition, the wash water passes through the clothes and the through holes of the drum by centrifugal force and is discharged into the tank. As a result, the clothes are soaked with the wash water in the filtration movement for washing. In addition, the wash water passes through the clothes simply and the functional clothes may not be damaged while soaking in the washing water. After the filtration movement is implemented for a predetermined period of time, the balancing movement can be implemented. As mentioned before, the detergent can dissolve continuously, without damage to functional clothing. The clothes can be soaked effectively in the wash water by means of the generated vortex and by extension, the rocking movement generates the rotation of the drum repeated in the clockwise direction / counterclockwise direction. Therefore, tangled clothing can be separated before washing. In addition, the rocking motion drops the clothes from a relatively low position and damage to the fabric of the clothes can be minimized while the clothes are untangled. As a result, the combination of filtration and balancing movements can minimize damage to functional clothing and allow soaking of clothes, detergent solution and disentangling of clothes to be achieved effectively. Such a sequential combination of the filtration and balancing movements can be repeated several times over a predetermined period of time.

F.1.2 Washing (S1540):

Once the wash water is supplied at the predetermined water level, the water supply stage is completed and then a washing stage can be started. Since the functional clothing is relatively light and thin, essentially the same washing stage can be implemented, regardless of the amount of clothing in the drum.

F.1.2.1. First wash (S1541):

The washing stage may include a first washing stage implemented for a predetermined period of time, with the drum actuated in the striking movement. As mentioned before, the striking movement drops the clothes from the upper position. As a result, the beating movement in the first washing stage mixes the items of clothing evenly and the washing water in a preliminary manner. In addition, the beating movement soaks the contaminants in the clothes and applies the impact to the clothes to separate the contaminants from the clothes using the large rotation / fall of the clothes.

F.1.2.2. Second wash (S1543):

After the first wash stage, a second wash stage can be implemented for a predetermined period of time. In the second washing stage, the washing water is heated for a more effective washing and removal of contaminants. First, the wash water can be heated by a heater provided on a lower surface of the tank or a steam generating device configured to supply steam to the tank. Substantially, the wash water can be heated to about 25 ° C to 30 ° C, preferably about 27 ° C in the second wash stage. Functional clothing is made of a fine synthetic fabric texture and can be damaged if the temperature of the heated wash water is excessively high. As a result, washing water that has an appropriate temperature in the second washing stage can improve washing efficiency and can prevent tissue damage.

Simultaneously with the heating of the wash water, the drum can be operated in the rocking motion in the second washing stage. The swinging movement uses the fall of the clothes from a relatively low position and the alternative rotation of the drum. Therefore, clothes can swing gently and move sufficiently in the wash water. The wash water in the rocking motion can be heated uniformly in a relatively short time and the heat can be transmitted to the clothing sufficiently. In addition, the rocking motion can generate the impact by friction between the washing water and the clothing and the impact of falling and can effectively remove contaminants without tissue damage.

28

image15

image16

image17

image18

image19

image20

image21

image22

image23

image24

image25

image26

image27

image28

image29

image30

image31

image32

image33

image34

image35

image36

image37

Claims (1)

image 1 image2 image3