CN1517480A - washing machine - Google Patents

Abstract

This washing machine has an outside tub, a washing and spin-drying tub rotatably placed within the outside tub, a pulsator rotatably incorporated within the washing and spin-drying tub, an outvane, mounted on the lower part of the pulsator, a driving means for rotation driving the pulsator and the washing and spin-drying tub, a water supply means for feeding water to the inside of the outside tub, a circulation passage which raises and circulates a washing solution within the washing and spin-drying tub by rotating the outvane, and a control means for governing the driving means and the water supply means, a washing agent throwing in port is prepared in the upper part of the circulation passage, water less than in a washing process is fed by the water supply means, and the high-concentration washing agent solution is formed by rotation controlling the pulsator by the driving means.

Description

washing machine

technical field

The present invention relates to washing machines.

Background technique

Conventional washing machines have described the following technology, that is, by using a water level lower than the specified water level and setting a stroke for agitating the laundry, it is possible to wash with high-concentration washing water without increasing the amount of detergent, and then the washing water sprayed over a large area from the upper part Spraying, detergent can effectively act on stains that are difficult to remove, so as to pursue the reduction of washing effect and washing unevenness (for example, refer to Patent Document 1).

[Patent Document 1] Japanese Unexamined Patent Publication No. 02-302298 (page 4, FIG. 2 )

However, in the prior art, since the powdered detergent etc. are directly put on the clothes to generate a high-concentration detergent solution for washing, there are problems such as color fading of the clothes.

In addition, when the pulsator serving as the stirring blade is rotated to generate a high-concentration detergent liquid, if the pulsator is rotated while the entire clothes are wet, there is a problem that the clothes are stirred together.

The object of the present invention is to provide a washing machine capable of generating high-concentration detergent liquid relatively easily and improving the cleaning power of clothes.

Contents of the invention

The present invention is a washing machine comprising an outer tank; a washing and dewatering tank rotatably built in the outer tank; a pulsator rotatably built in the washing and dehydrating tank; and a pulsator installed under the pulsator. The inner impeller; the driving mechanism that rotates the above-mentioned pulsator and the above-mentioned washing and dehydrating tank; the water supply mechanism that supplies water to the above-mentioned outer tank; by rotating the above-mentioned inner impeller, the washing liquid rises and circulates in the above-mentioned washing and dehydrating tank Passage; the control mechanism for controlling the above-mentioned drive mechanism and the above-mentioned water supply mechanism, characterized in that, on the upper part of the above-mentioned circulation passage, a detergent inlet is provided, and the water supply mechanism is used to supply less water than the washing process, and the above-mentioned drive mechanism is used to rotate The above-mentioned pulsator is controlled to generate detergent liquid.

A washing machine according to an embodiment of the invention of the present application has an outer tank; a washing and dehydrating tank rotatably built in the outer tank; a pulsator rotatably built in the washing and dehydrating tank; The inner impeller at the bottom of the pulsator; the driving mechanism for rotating and driving the above-mentioned pulsator and the above-mentioned washing and dehydrating tank; the water supply mechanism for supplying water to the above-mentioned outer tank; Circulation path of internal circulation; control mechanism for controlling the above-mentioned driving mechanism and the above-mentioned water supply mechanism, characterized in that, on the upper part of the above-mentioned circulation path, a detergent input port is provided, through the above-mentioned water supply mechanism, less water is supplied than in the washing process, and through the above-mentioned The driving mechanism rotates and controls the above-mentioned pulsator to generate high-concentration detergent liquid.

According to this configuration, it is not necessary to pour detergent directly onto the laundry, but to generate a high-concentration liquid and disperse it on the clothes, so that the detergency can be improved.

A washing machine according to an embodiment of the invention of the present application has an outer tank; a washing and dehydrating tank rotatably built in the outer tank; a pulsator rotatably built in the washing and dehydrating tank; The inner impeller at the bottom of the pulsator; the driving mechanism for rotating and driving the above-mentioned pulsator and the above-mentioned washing and dehydrating tank; the water supply mechanism for supplying water to the above-mentioned outer tank; Circulation path of internal circulation; control mechanism for controlling the above-mentioned driving mechanism and the above-mentioned water supply mechanism, characterized in that, on the upper part of the above-mentioned circulation path, a detergent input port is provided, through the above-mentioned water supply mechanism, water is supplied to the lower part of the above-mentioned pulsator, so that the above-mentioned The inner impeller is submerged, and the above-mentioned pulsator is rotated and controlled by the above-mentioned drive mechanism to generate high-concentration detergent liquid.

According to this structure, in the state where the load applied to the pulsator is reduced, a high-concentration detergent liquid can be generated, and it is not necessary to directly inject the detergent on the laundry, but to generate a high-concentration liquid and disperse it on the clothes. Can improve detergency.

The washing machine according to an embodiment of the present invention is further characterized in that in the washing and dehydrating tank, a discharge port for discharging the washing liquid is provided below the detergent inlet in the middle of the circulation path.

According to this configuration, the high-concentration detergent liquid can be more effectively spread and soaked on the clothes.

The washing machine according to one embodiment of the invention of the present application is further characterized in that the water level of the supplied water is kept constant when the high-concentration detergent liquid is generated.

According to this configuration, water supply control can be easily performed.

The washing machine according to one embodiment of the invention of the present application is characterized in that the water supply port for supplying water to the outer tank is located on the inner peripheral side of the balance weight on the upper part of the washing and dehydrating tank through the water supply mechanism. above the balance weight.

According to this structure, when water is supplied, it is possible to reduce the load on the motor when the high-concentration detergent liquid is generated by the rotation of the pulsator, since the water does not permeate the clothes too much.

The washing machine according to one embodiment of the invention of the present application is characterized in that the detergent inlet is further provided on the balance weight so that the water from the water supply port is positioned to flow down.

According to this structure, the detergent adhering to the detergent inlet can be washed away by water supply, and the adhesion of the detergent can be suppressed.

The washing machine according to one embodiment of the invention of the present application is characterized in that, after the high-concentration detergent liquid is generated, the pulsator is rotated and driven by the driving mechanism, and the high-concentration detergent liquid is raised by the action of the inner impeller, and the detergent liquid is washed simultaneously. Circulation in the dehydration tank, through the water supply mechanism, additional water is supplied to the outer tank, and through the drive mechanism, the pulsator is rotated and driven for washing.

According to this configuration, after the high-concentration detergent liquid is generated, it is sprayed on the laundry to improve the detergency. Furthermore, after additional water is supplied, the pulsator is rotated for washing, so as a whole, the detergency can be improved.

The washing machine according to an embodiment of the invention of the present application is characterized in that, when water is supplied to the outer tank by the water supply mechanism, the washing and dehydration tank is rotationally driven by the drive mechanism.

Accordingly, when there is a detergent inlet below the water supply port by water supply, the detergent inlet can be cleaned.

Description of drawings

Fig. 1 is a longitudinal sectional side view showing a fully automatic washing machine according to one embodiment of the present invention.

Fig. 2 is a block diagram showing an electrical system of the washing machine shown in Fig. 1 .

Fig. 3 is a perspective view showing a washing and dehydrating tank according to an embodiment of the present invention.

Fig. 4 is a plan view of the water supply unit cut along the line A-A shown in Fig. 5 .

Fig. 5 is a longitudinal sectional view of the fully automatic washing machine showing the flow of water during water supply.

Fig. 6 is a flow chart of each process executed by a microcomputer in a control unit of the washing machine shown in Fig. 1 .

Fig. 7 is a diagram showing a method of impregnating a high-concentration detergent solution in the high-concentration detergent solution permeation step of the present invention.

Detailed ways

(Example)

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a longitudinal sectional view of a fully automatic washing machine as one embodiment of the present invention. The fully automatic washing machine is formed by suspending the outer tank 4 made of synthetic resin in the outer frame 1 made of steel plate through the suspender 2 and the anti-vibration device 3 composed of coil spring or elastic rubber. The outer tank 4 for storing the washing water and the cleaning water is hung down equally from all sides by four sets of suspenders 2 and anti-vibration devices 3 locked to the four corners of the upper end of the outer frame 1, so that it hangs. Supported at the center of the outer frame 1. On the outer side of the bottom of the outer tank 4, the drive unit 7 is mounted via a steel plate-made mounting base 7a. Inside the outer tank 4, a washing and dehydrating tank 5 made of stainless steel is rotatably installed. The washing and dehydrating tank 5 has a small hole 5a for water circulation on the peripheral wall, a balance weight 5b on its upper edge, and a freely rotatable pulsator 6 inside the bottom. At the bottom of the washing and dehydrating tank 5, there is a water inlet 5c communicating with the outer tank 4. In addition, there is a gap between the inner periphery of the outer tank 4 and the outer periphery of the washing and dehydrating tank 5. In order to prevent laundry and the like from entering the gap, the upper surface of the outer tank 4 has a tank cover 4a covering the upper surface of the balance weight 5b.

The above-mentioned pulsator 6 is constituted such that, by covering most of the bottom of the washing and dehydrating tank 5 with a large diameter (the outer diameter is more than 90% of the inner diameter of the washing and dehydrating tank), the peripheral part is gradually enlarged, and upwards. It is bent, formed into a dish shape, and rotates while supporting the laundry 50 . On the inner surface of the pulsator 6, inner impellers 6a are provided radially. In addition, the pulsator 6 has a plurality of holes 6b connecting the surface and the inner surface at the curved portion.

The rotation of the pulsator 6 and the washing and dehydrating tank 5 is performed by the driving device 7 . Driving device 7 is built-in driving motor, electrically operated clutch mechanism and planetary gear reduction mechanism, has selective driving function, can make pulsator 6 rotate (stirring mode) under washing and dehydrating tank 5 static state, or make washing The combined dehydration tank 5 and the pulsator 6 rotate in the same direction integrally (dehydration mode).

The drain device 13 is arranged behind the drain port 13a on the bottom surface of the outer tank 4, and a drain hose 14 is connected to the outlet. The washing water remains in the outer tank 4 by closing the drain device 13 , and is discharged out of the washing machine through the drain hose 14 by opening the drain device 13 . In addition, at the bottom of the side of the outer tank 4 , an anti-air valve 4 b is provided to transmit the water pressure in the outer tank 4 to the water level sensor 11 through the inner tube 12 .

On the upper part of the outer frame 1, a top cover 15 is provided. The top cover 15 is composed of the rear storage box 15b for storing the input port 15a and the water supply unit 17 etc. for storing the laundry; the front operation box 15c for storing electrical parts such as a microcomputer; The synthetic resin cover 16 constitutes.

In the front storage box 15c, an operation panel 18 is built in. The operation panel 18 has a power switch 20, an input switch group 18a, and a display element group 18b; a water level sensor 11 that sends out a water level signal corresponding to the water level in the outer tank 4; control unit 19. These constitute the control device.

FIG. 2 is a block diagram of a washing machine control unit composed of a microcomputer 25 as a center. The microcomputer 25 is connected to the input switch group 18a, the water level sensor 11, and the cover switch 23, and receives information signals such as user's button operation, water level in the washing and dehydrating tank 5, and the like. The output signal from the microcomputer 25 is connected to the drive circuit 24, and commercial power is supplied to the drive motor 7a, the electrically operated clutch mechanism 7b, the water supply solenoid valve 17b, the drain solenoid valve 17b of the drain device 13, etc., and the opening and closing or rotation of these are controlled. In addition, in order to inform the user of the operation of the washing machine, the display element group 18b is controlled to display the progress status. The power circuit 32 smoothly rectifies the commercial power to generate the DC power required by the microcomputer 25 .

Next, details of the detergent input unit and the detergent dissolving unit will be described using FIG. 3 . Fig. 3 is a perspective view of the washing and dehydrating tank 5, showing a part of the surrounding wall cut away. Inside the peripheral wall of the washing and dehydrating tank 5, a circulation passage 8 is provided in the vertical direction. The circulation path 8 has a detergent inlet 8a at its upper portion, and its lower end opens to a gap 10 formed by the pulsator 6 and the bottom surface of the washing and dehydrating tub 5 . Detergent inlet 8a is positioned substantially at the same height as the upper surface of weight 5b. Through the slope 9, the bottom surface of the washing and dehydrating tank 5 is smoothly connected to the circulation passage 8, and the detergent dropped into the circulation passage 8 from the detergent inlet 8a falls to the circulation passage 8, and in this state, reaches the bottom of the inner impeller 6a of the pulsator 6. Gap 10. The gap 10 between the bottom of the washing and dehydrating tank 5 and the inner impeller 6a generates a stronger water flow when the detergent is dissolved, and is narrower for promoting the dissolution of the detergent. In addition, the structure of the detergent inlet 8a shown in a drawing is an example, and any structure can be used as long as the detergent can be easily injected into the circulation path 8.

In the lower part of the circulation passage 8, a discharge port 8b is provided. The discharge port 8b is used to discharge the dissolved detergent solution into the washing and dehydrating tank 5, and soak into the laundry. The number of discharge ports 8b may be any, but it is desirable to provide a plurality of them in the vertical direction in order to discharge the detergent liquid to a wide range in the washing and dehydrating tank 5 . In addition, the shape of the discharge port 8b may be a vertically long slit shape or a plurality of holes other than the horizontally long slit shape shown in the figure.

Circulation channel 8 and detergent input port 8a, when washing detergent, when washing and dehydrating tank 5 can be rotated freely, because washing and dehydrating tank 5 can be rotated to a position that is easy to drop in by hand, so there is only one position. You can also go up. However, when the washing and dehydrating tank 5 is fixed when the detergent is injected, it is preferable to install a plurality of them. This is because even if the washing and dehydrating tank 5 is fixed at any position in the circumferential direction, the detergent inlet 8a which is easy to put in can be selected, and the degree of usability is improved.

When the detergent is put in, if the detergent remains in the detergent inlet 8a, it is flushed, so it is the water supply unit 17 and the water supply position of the structure shown in FIG. 4 and FIG. 5 .

FIG. 4 is a plan view of the water supply unit 17 (A-A sectional view of FIG. 5 ). Fig. 5 is a longitudinal sectional view of the washing machine showing a water supply position and water flow. The water supply unit 17 is composed of a water supply plug 17a, a water supply solenoid valve 17b, and a water supply box 17c. The bottom surface of the water supply box 17c is an inclined surface, so that the side of the washing and dehydrating tank 5 is the lowest, and there is a slit-shaped water supply port 17d at the lowest part. The water supply port 17d has a rectification function for causing water to flow substantially directly downward, and the shape of the opening thereof may be formed of a plurality of holes in addition to the horizontally long slit shape as shown in the figure.

Through the water supply mechanism, the position of the water supply port 17d for supplying water in the outer tank is the inner peripheral side of the balance weight 5b on the top of the washing and dehydration tank 5, and is positioned above the balance weight 5b. In this way, since the water flows down in a film shape slightly inside the inner peripheral surface of the balance weight 5b, when water is supplied, the water can not be soaked into the clothes too much, and the high pressure generated by the rotation of the pulsator can be reduced. Burden on motor at the time of concentrated detergent liquid.

In addition, detergent inlet 8a is characterized in that one or more are provided on a weight so that water from water supply port 17d flows down. According to this structure, the detergent adhering to the detergent inlet can be washed away by water supply, and the adhesion of the detergent can be suppressed.

In this way, if the washing and dehydrating tank 5 is rotated while water is supplied, the water flows into the detergent inlet 8a on the inside of the inner peripheral surface of the balance weight 5b, and the detergent remaining in the detergent inlet 8a or the circulation passage 8 can be washed away. detergent. In addition, the water flowing onto the laundry 50 flows as indicated by arrows in the figure. Water flows down near the outer periphery of the washing and dehydrating tank 5, so it gradually wets the laundry 50 on the outer peripheral side of the washing and dehydrating tank 5, and most of it passes through the wall surface of the washing and dehydrating tank 5 along the surface of the washing and dehydrating tank 5. The gap or small hole 5a of the material 50 flows down and remains at the bottom of the outer tank 4. Therefore, since the water does not infiltrate all of the laundry 50, the weight of the laundry 50 increased due to water content can be kept to a minimum. This is very effective especially when the amount of laundry 50 is large. If the amount of water soaked into laundry 50 is large, the weight acting on the pulsator 6 becomes large. When the wheel 6 is locked and the dissolution of the detergent cannot be sufficiently performed. In addition, there are also detergents that condense in a short time if they are left wet after being soaked in water. But, by the above-mentioned water supply, because can reduce the amount of water soaked into the laundry 50, make the water stay in the outer tank 4 in a short time, so can shorten the time from the start of water supply to the start of dissolving and stirring, and shorten the time from when the detergent is soaked. The initial standing time can prevent insufficient detergent dissolution.

Dissolving and stirring starts after the water level sensor 11 detects that the detergent dissolving water level shown in the figure has been reached. The detergent dissolved water level is desired to be as low as possible (less water) in order to increase the concentration of the detergent liquid. Since the dissolution of the detergent is carried out by the inner impeller 6a of the pulsator 6, the water supply mechanism supplies less water than the washing process. The detergent dissolving water level is at the bottom of the pulsator 6, and water is supplied to the water level of submerging the inner impeller 6a. Accordingly, the load applied to the motor can be reduced, and the motor can be prevented from being locked. In addition, the level of detergent dissolved water is not affected by the amount of cloth, and by performing certain control, the penetration of washing water into the cloth can be suppressed, and the control can be simplified.

With the above-mentioned configuration, since the dissolution can be sufficiently stirred and dissolved with a small amount of water, a high-concentration detergent liquid can be produced. The detergent concentration at this time varies depending on the load, and it is about 5-8 times the concentration (1 times) suitable for washing.

Next, the operation of each process of the washing machine thus constituted will be described. FIG. 6 is a flowchart of each process executed by the microcomputer 25 in the control unit 19 .

When the washing start button switch of the input switch group 18a is pressed, the microcomputer 25 executes the following control processing.

Step 101

The user puts the laundry 50 into the washing and dehydrating tank 5, operates the input switch group 18a of the operation panel to perform initial setting, and presses the washing start button switch, and the microcomputer 25 starts the automatic operation control process of each process.

In the above-mentioned initial setting, according to the washing process corresponding to the laundry 50 and needs, the washing time or dehydration time, water volume, flushing times, etc. are set.

Step 102

Cloth amount detection control processing of laundry 50 is performed. The amount of cloth is detected by controlling the electrically operated clutch mechanism 7b of the driving device 7 in the agitation mode in the state of dry cloth before washing, energizing the driving motor 7a for a short time, and rotating and driving the pulsator 6, based on the acceleration characteristics during rotational acceleration Alternatively, the deceleration characteristic in the inertial rotation when the drive motor 7a is energized is stopped, and the detection is performed. According to the detection result, the amount of detergent is calculated and determined, and the amount of detergent is used to generate the amount of washing water and the washing water with an appropriate concentration of detergent, and the amount of detergent is displayed by displaying the atomic group 18b. The user injects a predetermined amount of detergent from the detergent inlet 8a with reference to the amount of detergent displayed above. The detergent injected from the detergent inlet 8a falls into the circulation passage 8, and in this posture, reaches the gap 10 below the inner impeller 6a of the impeller 6. As shown in FIG.

Step 103

The user closes the lid 16 provided on the top cover 15 after injecting detergent. When the lid 16 is closed, the microcomputer 25 receives a signal from the lid switch 23, opens the water supply electromagnetic valve 17b, and starts water supply. At this time, the electric operation clutch mechanism 7b of the driving device 7 is controlled in the dehydration mode, the driving motor 7a is operated at a low speed, and the washing and dehydrating tank 5 is rotated at a low speed for about 30 seconds from the start of water supply while water is supplied. This is to flush the inside of detergent inlet 8 a and circulation passage 8 in consideration of detergent remaining in detergent inlet 8 a and circulation passage 8 . After making the washing and dehydrating tank 5 rotate at a low speed for about 30 seconds, the operation of the driving motor 7a is stopped, and the washing and dehydrating tank 5 is not rotated, and the water supply is continued. In this way, while the washing and dehydration tank 5 is rotated, the purpose of short-time water supply is to reduce the amount of water soaked into the laundry 50. When the detergent in step 104 described later is dissolved, the load on the pulsator 6 is reduced, and the load on the pulsator 6 is reliably reduced. Perform detergent dissolution. Furthermore, by stopping the washing and dehydration tank 5 on the way, and continuing to supply water, the water can be left in the outer tank 4 in a short time, and the detergent can be prevented from being soaked and coagulated, resulting in incomplete dissolution.

In this way, if the water level sensor 11 detects that the detergent solution level has been reached, the microcomputer 25 receives the signal from the water level sensor 11 and closes the water supply solenoid valve 17b.

Step 104

Dissolve detergent to generate high concentration detergent liquid. In the detergent dissolving process, the electrically operated clutch mechanism 7b of the driving device 7 is switched to the agitation mode, and the driving motor 7a is controlled to rotate forward and reverse repeatedly to make the pulsator 6 rotate forward and reverse. Accordingly, the detergent and water thrown into the gap 10 below the inner impeller 6a are agitated by the inner impeller 6a of the pulsator 6 to generate a high-concentration detergent liquid. The energization time to the drive motor 7a is controlled, for example, 0.5 second energization and 0.5 second stop. This is called the run time limit and is expressed as 0.5 seconds on-0.5 seconds off. If the on time is too long, the laundry 50 on the pulsator 6 will move violently, and the washing and dehydration tank 5 will be shaken by the reaction force, and the outer tank 4 will collide with the outer frame 1, which will cause noise. Taking this matter into consideration, it is better to set the ON time to be short, and set it to an operation time limit that can sufficiently dissolve the detergent. That is, the desired on time is 0.4 seconds to 0.5 seconds. Further, it is more desirable that the operating time limit can be changed according to the amount of laundry 50 (because the more the amount of laundry, the more difficult it is for the pulsator to rotate, so the on time should be extended).

Step 105

Soak in high-concentration detergent solution. The penetration of the high-concentration detergent solution is carried out by extending the detergent dissolution process. The high-concentration detergent liquid generated by the forward and reverse rotation of the pulsator 6 is supplied into the washing and dehydrating tank 5 by the action of the pump of the inner impeller 6 a of the pulsator 6 . The method of supplying the high-concentration detergent liquid will be described in detail using FIG. 7 . If the pulsator 6 is rotated, the inner impeller 6a of the pulsator 6 will act as a centrifugal pump, and the high-concentration detergent liquid between the washing and dehydrating tank 5 and the outer tank 4 (bottom) will be discharged from the washing and dehydrating tank 5. The water inlet 5c at the bottom is sucked into the gap 10. In this way, the high-concentration detergent liquid starts from the detergent liquid inlet 8c of the circulation passage 8 at the bottom of the washing and dehydration tank 5, passes through the circulation passage 8, and is discharged into the washing and dehydration tank 5 from the discharge port 8b. The sides of the laundry 50 start to soak through. Furthermore, the high-concentration detergent liquid is also sprayed into the washing and dehydrating tank 5 from the plurality of holes 6 b provided on the pulsator 6 or the gaps on the outer periphery of the pulsator 6 , and permeates the laundry 50 from below the laundry 50 . In addition, as mentioned above, the pulsator 6 has a large-diameter peripheral portion that gradually expands and covers most of the bottom portion, and has an upwardly curved dish shape. Therefore, due to the rotation of the pulsator 6, the laundry on the pulsator also rotates together with the pulsator. Accordingly, the high-concentration detergent liquid permeates the laundry 50 countless times from the side and the bottom of the laundry 50 . The high-concentration detergent solution with a concentration of about 5-8 times the concentration suitable for washing (1 times) is 3-4 times faster than the detergent solution with a concentration of 1 times, and can quickly soak 50% of the laundry. all. In this way, the chemical detergency of the high-concentration detergent liquid (permeation, emulsification, dispersion, etc.) acts on the stains attached to the laundry 50, and the stains are easily removed from the laundry 50.

The soaking process of the high-concentration detergent liquid includes the detergent dissolving process in step 105. It is sufficient to rotate the pulsator 6 in the forward and reverse directions for about 30 seconds to 1 minute. The more you want to extend the time.

Step 106

The water supply solenoid valve 17b is opened to start supplying tap water. This washing water supply is performed until the water volume determined in step 102 is reached, and during the water supply, it is interrupted in order to detect the cloth quantity (wet cloth value) and cloth quality of the laundry 50 . This cut-off water level is a water level suitable for detecting the amount of wet cloth and the quality of cloth pre-set in the microcomputer 25 . In addition, the concentration of the high-concentration detergent liquid gradually decreases between the water supply to the cutoff water level. Meanwhile, the pulsator 6 may be rotated in the forward and reverse directions (the operating time limit may be the same as that of the detergent dissolving step). In this way, in the high-concentration detergent liquid, the mechanical force can act on the laundry 50 (the laundry near the pulsator 6 because of the small amount of water), which improves the cleaning power.

Step 107

Detect the amount and quality of wet cloth, correct the amount of washing water supplied, and determine the washing process (washing process and rinsing process). The detection of the cloth quality is to interrupt the water supply at a predetermined low water level, control the electric operation clutch mechanism 7b of the driving device 7 in the stirring mode, and in a short time, energize the driving motor 7a to rotate and drive the pulsator 6, and detect whether it is released or not. The first deceleration characteristic (the amount of wet cloth) in the inertial rotation at the time, then, start the water supply again, after the washing water is replenished to the predetermined high water level, the water supply is interrupted, and the driving motor 7a is energized in a short time, and the rotation is driven The pulsator 6 detects the second deceleration characteristic in the inertial rotation at the time of release, and detects the cloth quality of the laundry 50 based on the difference between the first attenuation characteristic and the second attenuation characteristic. This cloth quality detection control is initially set, and is omitted when it is not necessary. In this way, the time and water flow (mechanical agitation strength) in the washing and rinsing steps are determined according to the quality of the cloth.

Step 108

Tap water is supplied up to the water amount (water level) determined in step 102 . With this water supply, the washing water dilutes the high-concentration detergent solution to a detergent concentration (1 time) suitable for washing. Accordingly, laundry 50 is immersed in washing water having a predetermined detergent concentration (1 time) in washing and dehydrating tank 5 .

Step 109

The driving device 7 is controlled to perform the washing process with the washing water flow and washing time set in step 107 . In this washing process, the driving device 7 controls the electric operation clutch mechanism 7b to the agitation mode, repeats the forward and reverse rotation of the drive motor 7a, and rotates the pulsator 6 forward and reverse. At this time, stains are easily removed, and even if the mechanical force acting on laundry 50 is reduced, high cleaning power can be obtained, and cloth entanglement and cloth damage can be suppressed.

Step 110

Open the drain solenoid valve 13a to discharge the washing water out of the machine. In this way, the electric operation clutch mechanism 7b of the driving device 7 is controlled to the dehydration mode, and the washing water on the laundry 50 is centrifugally dehydrated by rotating the washing and dehydrating tank 5 and the pulsator 6 at a high speed due to the high-speed rotation of the driving motor 7b. .

Step 111

The water supply solenoid valve 17b is opened to supply cleaning water (tap water) up to the set water volume.

Step 112

The driving device 7 is controlled to execute the rinsing process. The driving device 7 controls the electric operation clutch mechanism 7b to the agitation mode, and by repeating the forward and reverse rotation of the driving motor 7a, the pulsator 6 is rotated forward and reverse, and the detergent contained in the laundry 50 is rubbed into the washing water. .

Step 113

Open the drain solenoid valve 13a to drain the washing water out of the machine.

Step 114

In the state of opening the drain electromagnetic valve 13a, the electric operation clutch mechanism 7b of the driving device 7 is controlled to the dehydration mode. Due to the high-speed rotation of the drive motor 7b, the washing and dehydration tank 5 and the pulsator 6 are rotated at a high speed to clean the laundry. The moisture above 50 is subjected to centrifugal dehydration. After performing centrifugation for a predetermined time, washing is completed.

According to the present invention, it is possible to relatively easily generate a high-concentration detergent liquid, and it is possible to provide a washing machine that improves the detergency of clothes.

Claims (8)

1. washing machine, have: water jacket, can be configured in washing and dewatering groove in the above-mentioned water jacket with rotating freely, can be configured in the impeller in the above-mentioned washing and dewatering groove with rotating freely, the interior impeller that is arranged on the bottom of above-mentioned impeller, rotation drive above-mentioned impeller and the driving mechanism of above-mentioned washing and dewatering groove, the water supply mechanism that in above-mentioned water jacket, supplies water, by rotate above-mentioned in impeller cleaning solution is risen, the peripheral passage of in above-mentioned washing and dewatering groove, circulating, control the controlling organization of above-mentioned driving mechanism and above-mentioned water supply mechanism; It is characterized in that the top in above-mentioned peripheral passage is provided with the washing agent input port, supply water to the water level lower, drive above-mentioned impeller, generate washing agent liquid by above-mentioned driving mechanism rotation than the predetermined water level of washing procedure by above-mentioned water supply mechanism.

2. washing machine as claimed in claim 1 is characterized in that, above-mentioned water level is by above-mentioned water supply mechanism, the bottom of above-mentioned impeller make above-mentioned in the water level of impeller submergence.

3. washing machine as claimed in claim 1 or 2 is characterized in that, in above-mentioned washing and dewatering groove, the outlet that makes above-mentioned cleaning solution discharge is arranged on the below of above-mentioned washing agent input port in the way of above-mentioned peripheral passage.

4. washing machine as claimed in claim 1 or 2 is characterized in that, when generating above-mentioned washing agent liquid, the water level that makes water supply is for certain.

5. washing machine as claimed in claim 1 or 2, it is characterized in that, make by above-mentioned water supply mechanism to be used for the interior all side of the position of the feed water inlet of in above-mentioned water jacket, supplying water, be positioned at the top of above-mentioned balance weight at the balance weight on the top that is arranged at above-mentioned washing and dewatering groove.

6. washing machine as claimed in claim 5 is characterized in that, above-mentioned washing agent input port is arranged on the above-mentioned balance weight, makes water level from above-mentioned feed water inlet in the position that flows down.

7. washing machine as claimed in claim 1 or 2, it is characterized in that, after generating above-mentioned washing agent liquid, drive above-mentioned impeller by above-mentioned driving mechanism rotation, by the effect of impeller in above-mentioned, above-mentioned washing agent liquid is risen and in above-mentioned washing and dewatering groove, circulate, in above-mentioned water jacket, append water supply by above-mentioned water supply mechanism, drive above-mentioned impeller by above-mentioned driving mechanism rotation, wash.

8. washing machine as claimed in claim 6 is characterized in that, when supplying water in above-mentioned water jacket by above-mentioned water supply mechanism, drives above-mentioned washing and dewatering groove by above-mentioned driving mechanism rotation.

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