WO2002099178A1

WO2002099178A1 - Washing machine

Info

Publication number: WO2002099178A1
Application number: PCT/JP2002/005466
Authority: WO
Inventors: Toshifumi Koike; Shiro Oobayashi; Toshiyasu Kamano; Isao Hiyama; Noriko Shimasaki; Kayo Hisamura
Original assignee: Hitachi, Ltd.
Priority date: 2001-06-04
Filing date: 2002-06-04
Publication date: 2002-12-12
Also published as: KR100544247B1; CN1464927A; JP3680766B2; CN1298911C; KR20030094208A; JP2002355489A

Abstract

A washing machine capable of reducing a mechanical force acting on washed matter in a washing process, wherein high density detergent liquid is produced by diluting detergent with a small amount of city water of 80 to 300 times the volume of the detergent, and sprayed and penetrated into the pre-wetted washed matter while diluting the high density detergent liquid to a detergent density of 5 to 20 times to act the chemical washing force of the detergent acting on the contamination adhered to the washed matter so as to increase a washing efficiency, whereby, since a mechanical force acting on the washed matter when washing by feeding the amount of water necessary for the washing is reduced, the possibility of the damage and entanglement of the washed matter can be reduced.

Description

Specification

Washing machine

Technical field

The present invention relates to a washing machine and a washing / drying machine.

Background art

The automatic washing machine detects the amount of laundry put into the washing and spin-drying tub, and puts in an amount of detergent corresponding to the amount of laundry (laundry clothes). After supplying tap water (washing water) in an amount corresponding to the amount of clothing, rotate the agitating blades in the forward and reverse directions, or rotate the washing and dewatering tub in one direction, or rotate in the forward and reverse directions to wash clothes. After that, a washing process for applying mechanical power to the washing clothes is performed, and then a tap water (rinsing water) is supplied, and a rinsing process for applying the same mechanical force to the washing clothes is performed. It is configured to execute a spin-drying step of centrifugally spin-drying the rinsing water contained in the laundry by rotating it. The washing / drying machine, which performs drying of laundry, is configured to perform a hot-air drying step of blowing hot air to dry the laundry.

In such automatic washing machines and washing / drying machines, the amount of synthetic detergent dissolved in washing water in the washing process is generally 20 g / 30 L (detergent amount Z The amount of detergent in the wash water is about 0.07%.

When washing with washing water having such a detergent concentration, since the chemical detergency of the detergent is not so great, in order to remove dirt adhering to the laundry, it is necessary to use a washing machine. By increasing the rotating force of the agitating blade or the washing and dewatering tub, or by increasing the washing time, the mechanical force acting on the washing clothes must be increased. I have to. The result As a result, the current situation is that there is a drawback that the clothes are more severely damaged by the mechanical force and that the clothes are more entangled.

And, when the entanglement of the laundry clothes increases, the washing unevenness increases and it becomes difficult to remove the laundry clothes. Also, in a washing and drying machine, drying with hot air in a washing and dewatering tub becomes more difficult due to the occurrence of uneven drying, and washing clothes become wrinkled. I do. In order to perform hot-air drying, it is necessary to reduce the mechanical force acting on the laundry and to reduce the amount of cloth, which results in poor stain removal. Is occurring.

In order to reduce the mechanical force acting on the laundry in the washing process, for example, Japanese Unexamined Patent Application Publication No. 7-018182 discloses a method of immersing laundry in a high-concentration detergent solution before the washing process. A fully automatic washing machine that utilizes the chemical cleaning power of a high-concentration detergent by adding a pre-soaking step is disclosed.

Disclosure of invention

Washing machines and washer-dryers allow the means for washing, spin-drying and drying to be contained in a limited form of housing (width, depth, height). It is desirable to configure it in In particular, in order to make full use of the detergent's chemical cleaning power, means for generating a high-concentration detergent solution and penetrating the laundry have been added to conventional washing machines and washer-dryers. Therefore, it is necessary to devise these means to rationally install them in the housing to realize a practical washing machine or washing / drying machine. Japanese Patent Application Laid-Open No. 7-018182 discloses that a detergent is dissolved in water twice as much as the weight of laundry to produce a high-concentration detergent solution. For example, washing 4 kg of laundry requires 8 L of concentrated detergent solution. In order to install a means for generating and accumulating a large amount of high-concentration detergent liquid like this, a large casing is required.

One object of the present invention is to use a detergent to effectively exert the chemical cleaning power of the detergent, thereby acting on laundry (laundry clothes) in the washing process. The purpose is to propose a practical washing machine that can greatly reduce the mechanical power required.

Another object of the present invention is to provide a washing machine in which laundry dehydrated in the washing and dewatering tub is dried by blowing warm air into the washing and dewatering tub. In addition, by reducing the mechanical force acting on the laundry, the entanglement of the laundry in the washing and dewatering tub is reduced without increasing the dirt removal, and the drying efficiency is improved. It is to reduce drying unevenness.

Yet another object of the present invention is to prevent the washing and dissolving of the powdered synthetic detergent and dispersing it onto the laundry to prevent the washing agent from causing color unevenness in the laundry. is there .

To achieve any of the above objectives, the present invention provides a method for dissolving a detergent in a small amount of detergent-dissolved water to produce a highly concentrated detergent solution having a higher concentration than the detergent concentration of the wash water. By diluting the high-concentration detergent solution into the laundry and allowing it to permeate, the cleaning efficiency that utilizes the chemical detergency of the detergent that acts on the dirt attached to the laundry is improved. It increases and reduces the mechanical force exerted on the laundry during subsequent washing.

In addition, the concentration of the detergent liquid that is sprayed and impregnated on the laundry is effective depending on the hardness component contained in the tap water by dissolving and diluting the powdery synthetic detergent with tap water. The decrease in the amount of a nonionic surfactant can be effectively suppressed by the function of the water softener contained in the detergent. Control to the extent possible. '

In the present invention, a high-concentration detergent solution is prepared by dissolving a detergent in a small amount of detergent dissolving water.

(For example, 80 to 500 times the detergent concentration of the wash water), and dilute the high-concentration detergent solution (for example, 5 to 20 times the detergent concentration of the wash water) while washing the laundry. By spraying and infiltrating the laundry, the chemical detergency of the detergent can be effectively exerted, and the mechanical force acting on the laundry in the washing process can be effectively reduced. be able to .

Further, the present invention relates to a washing machine for drying a laundry dehydrated in a washing and dewatering tub by blowing warm air into the washing and dehydrating tub. Drying unevenness can be reduced by reducing the entanglement of water.

In addition, the present invention dissolves an amount of detergent set according to the amount of laundry to be detected with a small amount of detergent-dissolving water to produce a high-concentration detergent solution, and dilutes this to wash it. As it is designed to drop down and penetrate into objects, it is possible to efficiently use a suitable amount of detergent for washing, and use a small detergent dissolving container to create a high-concentration detergent solution that is preferred for penetration. It can produce wash water with the desired detergent concentration. ,

Further, the present invention provides a high-concentration detergent by spraying a high-concentration detergent solution on the laundry while rotating or stirring the laundry by moving the stirring blade relative to the washing and dewatering tub. Concentrated detergent liquid can be evenly applied to laundry.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic view showing a vertical section of a washer / dryer according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view showing a specific configuration of the washing / drying machine shown in FIG. FIG. 3 is a block diagram showing an electric configuration of the washing and drying machine shown in FIGS. 1 and 2.

FIG. 4 is a flow chart of a control process of each process executed by the micro computer in the control unit of the washer-dryer shown in FIGS. 1 and 2. .

FIG. 5 is a characteristic diagram of a beaker test showing a relationship between a concentration of a detergent solution penetrated into laundry and a chemical cleaning rate.

FIG. 6 is a characteristic diagram showing a relationship between a detergent concentration and a penetration rate of a detergent solution into laundry. -Fig. 7 is a characteristic diagram showing the relationship between the hardness of water that dissolves the detergent, the detergent concentration, and the amount of effective surfactant.

FIG. 8 is a characteristic diagram showing the relationship between the detergent concentration of a detergent solution produced by dissolving a powdered synthetic detergent and the strength of the detergent.

Figure 9 is a characteristic diagram of a beaker test showing the relationship between the degree of alkalinity (PH) and the chemical cleaning rate in washing water with a detergent concentration of 1 times. FIG. 10 is a characteristic diagram of a beaker test showing the relationship between the detergent concentration of the detergent solution and the chemical cleaning power depending on the presence or absence of the enzyme.

FIG. 11 is a characteristic diagram showing a relationship between a washing time and a washing degree. FIG. 12 is a characteristic diagram showing the relationship between the washing time and the cloth entanglement. BEST MODE FOR CARRYING OUT THE INVENTION-A high-concentration detergent solution is produced by dissolving a powdered synthetic detergent with a small amount of detergent-dissolving water, and the high-concentration detergent solution is permeated into laundry. As a result, the chemical detergency of the high-concentration detergent solution acts on the dirt adhering to the laundry to produce a cleaning action, so the machine that acts on the laundry in subsequent washing The power can be reduced. ^_ Biological cleaning action of the high-concentration detergent solution to permeate into the laundry Affected by concentration. '

Since the amount of powdered detergent used most often is adjusted according to the amount of laundry, in order to create a suitable highly concentrated detergent liquid that produces the desired chemical cleaning power, It is desirable to adjust the amount of water supply according to the amount of this detergent. Specifically, the desired detergent concentration of a highly concentrated detergent solution that is to be penetrated into laundry is 5 to 20 times the standard detergent concentration of the wash water, and the preferred detergent concentration is: It is about 10 times. For example, a highly concentrated detergent solution with a detergent concentration of 10 times uses 60 L of washing water in a general washing machine and a washing / drying machine. The use of such a large-volume detergent-dissolving container is equivalent to the detergent solution obtained by dissolving the detergent, and therefore, the viewpoint of the location of the detergent-dissolving container is important. Therefore, the high-concentration detergent solution produced by dissolving the powdered synthetic detergent in tap water is not desirable, for example, in a small amount necessary to dissolve the powdered synthetic detergent, for example. 200 to 300 mL of tap water permeates the laundry. Higher concentration than the high concentration detergent solution, for example, 200 to 300 times the detergent concentration of the wash water. To the desired concentration and dilute it to the preferred detergent concentration and allow it to penetrate down into the laundry. Configure to.

In addition, powdered synthetic detergents containing fluorescent whitening agents produce discoloration (uneven color) when they are produced or washed with light-colored laundry made of natural materials. The fluorescent whitening agent adheres to the light yellow cloth, and when blue-violet light (center wavelength: 44 O nm) is added to the reflected light, the whitening appears to be whiter. . The color unevenness becomes remarkable when there is uneven penetration of the high-concentration detergent solution into the laundry. Therefore, before spraying the highly concentrated detergent solution, wet a small amount of water on the laundry in advance and then rotate the laundry at low speed. It is desirable to apply a high concentration detergent solution to make it permeate.

The present invention relates to a washer and a washer / dryer that effectively utilize the chemical detergency of a high-concentration detergent solution. However, the washer is implemented in a form in which the drying mechanism of the washer / dryer is omitted. Hereinafter, embodiments of the washing and drying machine will be described.

The washing / drying machine according to the present embodiment detects the amount of laundry, determines the amount of washing water (washing water level), and determines the required amount of powdered synthetic detergent. Is dissolved in water to produce a high-concentration detergent solution, a high-concentration detergent solution generation process, a pre-watering process in which laundry is moistened with water, and a high-concentration solution generated by dissolving a powdered synthetic detergent A permeation process in which the detergent liquid is sprayed on the wet laundry while being diluted, and a permeation process in which the laundry in which the high-concentration detergent solution is permeated is deferred (omitted as necessary); A washing step, a rinsing step, a dehydrating step, and a hot air drying step are performed.

FIG. 1 is a schematic diagram showing a vertical section of a washing and drying machine according to an embodiment of the present invention.

1 is a frame constituting the outer shell. Reference numeral 2 denotes a washing and dewatering tub, which has a water passage hole 2a on its peripheral wall, a fluid balancer 3 on its upper edge, and a rotatable stirring blade 4 on the inside of its bottom. I do. The stirring blade 4 has a water passage hole 4a. Reference numeral 5 denotes an outer tub that contains the washing and dewatering tub 2, and a T drive device 6 is installed on the outside of the bottom by a steel plate mounting base 7. The washing and dewatering tub 2 is supported so as to be suspended from the four corners at the upper end of the frame 1 by an anti-vibration support device 8.

The drive unit 6 is composed of a drive motor, an electric clutch mechanism, and a planetary gear. With the built-in vehicle speed reduction mechanism, the washing and dewatering tub 2 is kept still * lh and the stirring blade 4 is rotated (stirring mode), and the washing and dewatering tub 2 and the stirring blade 4 are rotated in opposite directions ( The washing and dewatering tub 2 and the stirring blade 4 are integrally rotated in the same direction (dehydration and drying mode), and a selective drive function is provided. The top cover 9 having the clothes input opening 9a is fitted to the edge of the opening so as to cover the upper opening of the frame 1, and the front panel 10 and the back panel are fitted. 1 Attach to frame 1 with the mounting screw together with 1.

The front panel box 12 formed between the top surface canopy 9 and the front panel and front panel 10 has a power switch 13, an input switch group, and a display element. An operation panel 14 equipped with a group, a water level sensor 15 that generates a water level signal corresponding to the water level in the outer tank 5, and a control unit 16 are built-in. These constitute a control device. In the knock panel box 17 formed between the top cover 9 and the back panel 11, the washing water supply means and the concentrated detergent liquid generation means are installed side by side. Built-in.

The washing water supply means includes a main water supply solenoid valve 20 having an inlet side connected to a faucet connection port 18 and an outlet side connected to a water injection port 19.

The high-concentration detergent liquid generation means supplies a small amount of detergent-dissolved water from the auxiliary water supply solenoid valve 22 to the detergent dissolution container 21, and is charged into the detergent dissolution container 21. Is dissolved in the above-mentioned detergent-dissolving water while being stirred by an electrically driven stirring blade to produce a high-concentration detergent solution. The detergent dissolving container 21 has an overflow portion (not shown) connected to the water supply port 19, and the generated high-concentration detergent solution is diluted by further water supply (diluted water supply) to increase the amount. And overflow from the overflow section Then, supply it to the water inlet 19.

The amount of detergent-dissolved water for generating a high-concentration detergent solution should be set to a small amount that does not cause overflow from the overflow section of the detergent dissolution vessel 21, and it is preferable to dilute and supply the laundry with laundry. In order to dilute to detergent concentration, the main water supply solenoid valve 20 is also opened to supply additional dilution water to the inlet 19.

The size of the detergent dissolving container 21 is desirably about 400 to 500 mL to be installed in the back panel box 17. In order to prevent the overflow from the overflow section while the powdery synthetic detergent is being dissolved to produce a high-concentration detergent solution, the amount of detergent-dissolved water is set to 150 to 300 mL. The difference in the amount of detergent dissolving water is due to the difference in the foaming state due to air entrainment during detergent dissolution depending on the type (brand) of the powder synthetic detergent.洗 Detergent detergent foaming water must be reduced because detergent foaming often increases its apparent volume during dissolution and easily overflows. Actually, the type of detergent and the foaming state are various, and it is preferable to set the amount of detergent dissolved water to about 150 to 200 mL in order to prevent overflow.

The amount of washing water in a washing / drying machine with a washing capacity of 8 kg is about 24-68 L. The detergent concentration of a high-concentration detergent solution produced by dissolving powdered synthetic detergent with detergent dissolving water is as follows: It is 80 to 500 times the detergent concentration of water. This high-concentration detergent solution is diluted 5 to 20 times (preferably about 10 times) when spraying and infiltrating laundry.

When a finishing agent charging means is attached to the detergent dissolving vessel 2-1 of the high concentration detergent liquid generating means, an auxiliary water supply electromagnetic valve 22a used for the finishing agent charging means is further provided.

The hot air circulating drying means is provided on the side wall near the bottom of the outer tank 5. It is formed so as to extend vertically upward from the outlet 5a along the outer wall surface on the rear side of the outer tub 5 so as to block the washing water that has entered through the outlet 5a. A water-cooled dehumidification duct 23, a cooling water sprinkling section 2 positioned at the top of the water-cooled dehumidification duct 23 and supplying cooling water to the duct, and an outer tub 5 in a washing process. And a descending air duct 25 extending vertically upward along the outer wall surface of the outer tub 5 toward the lower side of the outer tub 5, at a position higher than the water level of the outer tub 5. A circulation fan 26 that is arranged in the lower space of the tank 5 and sucks air from the downdraft duct 25 to generate circulating air, and discharges the circulation fan 26. Ascending air ducts 27 extending vertically upward from the mouth along the outer wall surface of the outer tank 5, and the ascending wind installed on the outer tank upper cover 28. Heating the circulating air from duct 27 (PTC Heating Night) 29 and circulating air heated by Heating Heater 29 into washing and dewatering tub 2 Equipped with an outlet 30 that blows toward.

The water-cooled dehumidifying duct 23, the descending duct duct 25, and the ascending duct duct 27 are mounted on the outer wall surface on the rear side of the outer tub 5 in the circumferential direction of the outer tub 5.

The hot air circulating drying means drains the washing water in the outer tub 5 after washing, rotates the washing and spin-drying tub 2 at a high speed, spins the water at a low speed, and then rotates the washing water. By operating the fan 26, the humid air in the outer tub 5 and the washing and dewatering tub 3 is sucked out from the outlet 5a, and the inside of the water-cooled dehumidifying duct 23 is discharged. In the ascending process, the water is cooled and dehumidified by the cooling water supplied from the cooling water sprinkling section 24 to the water-cooled dehumidifying duct 23. After that, the cooled and dehumidified air moves down the downdraft duct 25 and is sucked into the circulation fan 26. From the circulation fan 26, the air flows through the ascending air ducts 27 and the heater 29 to the outlet 30 and is heated by the heater 29 to be washed. The washing and dewatering tub 2 is blown in a direction opposite to the rotating direction of the washing and dewatering tub 2 toward the vicinity of the inner wall surface. Thus, the circulating air blown into the washing and dewatering tub 2 touches the laundry in the washing and dewatering tub 2 to dry the laundry.

The clothing input opening 9a formed on the top cover 9 is covered with an outer lid 31 so as to be freely opened and closed, and the opening 28a formed on the outer tank upper cover 28 has an inner lid 3a. 2 so that it can be opened and closed freely.

A drain port 5 b formed at the bottom of the outer tub 5 is connected to a drain hose 34 via a drain solenoid valve 33. The air trap 5c is connected to the water level sensor 15 via an air tube 35. At the lower edge of the frame 1, a base 37 made of synthetic resin with legs 36 attached to the four corners is attached.

Reference numeral 38 denotes the laundry put into the washing and dewatering tub 2.

FIG. 2 is a longitudinal sectional side view showing a specific configuration of the above-mentioned washing / drying machine. A description overlapping with the description of FIG. 1 is partially omitted. The drive unit 6 includes a drive motor 61, an electric operation clutch mechanism 62, a planetary gear reduction mechanism 63, a center output shaft 64 and an outer output shaft 65, and a lower surface of a steel plate mounting base 7. The mounting base 7 is integrally assembled on the top, and the mounting base 7 is mounted on the bottom surface of the outer tank 5 by screwing.

The drive motor 61 uses a reversible rotation type motor having a plurality of speeds or a continuously variable speed. In this embodiment, when the amount of cloth is detected, the stirring blade 4 is rotated. And the rotation speed at which the stirring blade 4 is rotated, and the rotation speed at which the washing and dewatering tub 2 and the nozzle or the stirring blade 4 are rotated when the high-concentration detergent solution is sprayed and permeated into the laundry. The rotation speed for rotating the sun gear of the planetary gear reduction mechanism during washing, the rotation speed for integrally rotating the washing and dewatering tub 2 and the stirring blade 4 during dehydration, and the washing and dehydrating tub 2 for hot air drying And the stirring blades 4 are integrally rotated so that the rotation speed of rotating the stirring blades 4 alone can be controlled to a preferable value.

The planetary gear reduction mechanism 63 connects a carrier supporting the planetary gears to the center output shaft 64, connects the internal gear to the outer output shaft 65, and connects the sun gear to the drive motor 61. It is a configuration that is combined with.

The electric operating clutch mechanism 62 is operated by operating the operating lever 62b by the electric operating machine 62a, so that the stirring mode, the washing mode, and the dehydrating mode are performed. · Select the drying mode. In the stirring mode, the internal gear of the planetary gear reduction mechanism 63 is engaged with the stationary member to apply a static force to the washing and dewatering tub 2 so that the drive motor 61 rotates. The force is transmitted to the stirring blade 4 via the planetary gear reduction mechanism 63 and the central output shaft 64 to rotate the stirring blade 4 and detect the cloth amount based on the load acting on the stirring blade 4. And cloth detection. In the washing mode, the sun gear is rotated by the drive motor 61 with the internal gear of the planetary gear reduction mechanism 63 being free to rotate, so that the rotational force of the drive motor 61 is increased. Is transmitted to both the central output shaft 64 and the outer output shaft 65 in the opposite direction, and is repeatedly rotated in the opposite direction to the washing and dewatering tank 2 and the stirring blade 4 to rotate in the normal and reverse directions.

And let them do the washing. In the dehydration / drying mode, the internal gear of the planetary gear reduction mechanism 62 is connected to the drive motor 61 so as to be connected. The sun motor and the internal gear are integrally driven by the drive motor 61 to rotate the center output shaft 64 and the outer output shaft 65 in the same direction to rotate the washing and dewatering tub 2 and the stirring blade 4. In this configuration, the water is rotated at a low speed in the same direction to perform the play water supply, the high speed is rotated to perform centrifugal dehydration, and the rotation is performed at a low speed to perform hot air drying.

FIG. 3 is a block diagram showing an electric configuration of the washing / drying machine. '

The control unit 16 that receives power via the power switch 13 is composed mainly of a micro computer 16a, and includes a power circuit 16b, a driving device 6, and the like. Power supply to main water supply solenoid valve 20, auxiliary water supply solenoid valve 22, 'detergent agitation motor 39, drainage solenoid valve 33, circulation fan 26, hi, and cooling watering solenoid valve 24 a And a drive circuit 16c having a group of semiconductor AC switching elements (FLS) for controlling the power supply.

The drive motor 61 of the drive device 6 has a stator winding 61 a and a rotation sensor 6 lb, and the electric operation clutch mechanism 62 has an operation position corresponding to the electric operation machine 62 a. It has a position sensor 6.2 c for detecting

The drive circuit 16c is provided with two drive circuits for forward and reverse rotation control with respect to power supply control to the stator winding 61a of the drive motor 61 in the drive device 6. The semiconductor AC switching device (FLS) of 16cl and 16c2 is provided. FLS 16 cl is a semiconductor switching element for controlling forward rotation power supply, and FLS 16 c 2 is a semiconductor AC switching element for controlling reverse rotation power supply. In this embodiment, the rotation speed of the drive motor 61 is controlled by controlling the phase of the power supply to the stator winding 61 a by F′L S l 6 cl and 16 c 2. , But the bras In a configuration using a series motor, it can be configured to perform PWM control or PAM control. In addition, an FLS 16 c 3 for controlling power supply to the electric operating machine 62 a of the electric operating clutch mechanism 62 in the driving device 6 is provided.

The drive circuit 1.6c is equipped with a main water supply solenoid valve 20, a water supply solenoid valve 22, a detergent stirring motor 39, a drainage solenoid valve 33, a circulation fan 26, a heater 29, and cooling. FLS 16-4 to 16-10 is provided to control the power supply to the watering solenoid valve 24a. The drive circuit 16c is controlled by controlling the conduction state of FLS 16c1 to FLS 16c10 in accordance with the instruction from the microcomputer 16a. Controls power supply to the load.

The microcomputer 16 a further includes a rotary sensor 61 b of the drive motor 61, an S sensor 62 c of the electrically operated clutch mechanism 62, and an outer tank 5. A water level sensor 15 that detects the washing water level of the detergent, a detergent sensor 40 that detects that detergent has been introduced into the detergent dissolving vessel 21, and a control that is connected to the operation panel 14 and is pre-installed By executing the processing program, the input switches 14a, the water level sensor 15, the rotation sensor 61b, and the position sensor 62c of the operation panel 14 are controlled. By taking in signals and controlling the drive circuit 16c, it is possible to detect the amount of cloth, generate high-concentration detergent solution, water supply, high-concentration detergent solution permeation, stationary, washing, rinsing, and dehydrating. And each step of hot-air drying, and by controlling the display element group 14 b of the operation panel 14, The progress is displayed.

The input switch group 14a on the operation panel 14 is used to set washing courses (standard, strong, soft, dry, handmade, futon, etc.). And dry courses (standard, wipes, finishing, dry The switch for setting the washing conditions, such as the switch, washing time and dehydration time, the amount of water, the number of times of rinsing, etc., and the drying course for continuous washing and drying (standard) , Switches, blankets, etc.).

Next, in each of the above-mentioned steps, when the high-concentration detergent solution is permeated into the laundry, thereby effectively generating the chemical detergency of the detergent, and washing, dehydrating and drying. This will be described by way of example.

Next, the operation of each step of the washing / drying machine configured as described above will be described. FIG. 4 is a flowchart of each of the above-described steps executed by the micro computer 16 a in the control unit 16. ,

The micro computer 16a executes the following control processing when the washing start potenti switch of the input switch group 14a is turned on.

Step 4 0 1

The user puts the laundry 3 8 into the washing / dehydrating tub 2, operates the input switch group 14 a of the operation panel 14 to perform the initial setting, and sets a washing start switch. By pressing, the micro computer 16a starts the automatic operation control processing of each step.

In the initial setting, a washing course according to the laundry, and a washing time, a dehydration time, a water amount, a number of times of rinsing, and the like are set as necessary. In addition, if you are going to dry after washing, set a washing and drying course.

Step 4 0 2

The laundry amount detection control processing of the laundry 38 is performed. This cloth amount detection is performed in the dry cloth state before water supply, by using the electrically operated clutch machine of the drive unit 6. The structure 62 is controlled to the stirring mode, the drive motor 61 is energized for a short time to rotate the stirring blades 4, and the acceleration characteristics at the time of rotation increase or the power supply to the drive motor 61 is stopped. It is detected based on the deceleration characteristics of the inertia rotation at the time. Based on this detection result (the amount of laundry on the laundry), the amount of washing water and the amount of detergent for generating washing water having a preferable detergent concentration are calculated and determined, and the amount of detergent is displayed on the display element group. Displayed by 14b. The user puts the powdered synthetic detergent into the detergent dissolving container 21 with reference to the displayed detergent amount.

Step 4 0 3,

Generates highly concentrated detergent liquid. When the detergent sensor 40 detects that the powdered synthetic detergent has been introduced into the detergent dissolution container 21, the auxiliary water supply solenoid valve 22 is opened to prevent the detergent dissolution container 21 from overflowing. Supply a small amount of tap water (detergent dissolved water). Then, the detergent stirring motor 39 is energized and the stirring blade is rotated to drive the high-concentration detergent solution by dissolving the powder and synthetic detergent in the detergent dissolution vessel 21 while stirring. Generate.

The amount of detergent dissolving water, the volume (size) of the detergent dissolving vessel 21 and the amount of powdered synthetic detergent used for washing can be uniformly and efficiently dissolved by stirring with stirring blades. The amount of water does not cause overflow due to foaming of the detergent during stirring. For example, if the capacity of the detergent dissolution vessel 21 is 500 mL (capacity up to the overflow section is 40 OmL), set the amount of detergent dissolved water to 150 to 200 mL. I do. The detergent dissolving water is controlled by the opening time of the auxiliary water supply solenoid valve 22. The concentration of the generated high-concentration precipitant liquid varies depending on the amount of detergent (the amount of laundry and the amount of washing water) put into the detergent dissolution vessel 21. For example, the amount of washing water in a washing / drying machine having a washing capacity of 8 kg is about 24 to 68 L, The high-concentration detergent solution is 80 to 500 times the detergent concentration of the washing water. The dissolution time requires 2-3 minutes. The dissolution time varies depending on the type of powdered synthetic detergent, but even for hard-to-dissolve detergents, the dissolution rate is 95 to 100% in 2-3 minutes, and most detergents can be dissolved. This is because we can do it.

Step 4 0 4

The electric clutch mechanism 62 of the drive unit 6 is controlled to a dehydrating / drying mode, and the driving motor 61 is operated at a low speed to rotate the washing / dewatering tub 2 and the stirring blade 4 at a low speed. Open the water supply solenoid valve 20 and supply the tap water directly to the water inlet 19 to spray the tap water onto the washing and dewatering tank 38 in the washing and dewatering tank 2. Pre-watering is performed. The amount of water to be supplied should be at least the amount that wets the top of the laundry up to a few cloths.

Fluorescent whitening agents contained in powdered synthetic detergents, which cause color irregularities in clothes made of light-colored natural materials, are a type of dye and are immediately absorbed when they come into contact with the laundry. For this reason, the fluorescent brightener is most likely to be adsorbed at the top of the laundry where the high concentration detergent liquid is directly applied. Therefore, when a high-concentration detergent solution is sprayed on dry laundry, the fluorescent brightener is adsorbed on the part where the high-concentration detergent solution flows in a large amount during the permeation process of the high-concentration detergent solution and on the other portions. Color differences occur due to differences in volume. On the other hand, at a certain distance from the top of the laundry, the amount of the fluorescent brightener in the high-concentration detergent solution that has penetrated is almost negligible, and is affected by the fluorescent brightener. It becomes difficult. Pre-watering and wetting the laundry makes it easier to penetrate the high-concentration detergent solution, and the high-concentration detergent solution diffuses evenly into the laundry, so the fluorescent brightener Adsorbs evenly on the laundry, preventing color unevenness. However, discoloration (uneven color According to the sensory test for), the range in which the effect of the optical brightener can be allowed by the pre-water supply is less than 20 times the concentration of the high-concentration detergent solution (preferably less than 10 times the concentration). It is a level that is hardly noticeable), and at a concentration higher than this, discoloration will be a level that is slightly noticeable even when pre-watering is performed. From this, it is necessary to keep the concentration of the high-concentration detergent solution at 20 times or less for discoloration (uneven color).

Also, the amount of water supplied to the preform is preferably controlled in accordance with the amount of laundry 38 detected by the laundry amount detection step, and when the amount of laundry 38 is small. The number is controlled to be small, and to increase as the number increases. This is because when the laundry is wet, the high-concentration detergent liquid penetrates and becomes more permeated, so that the high-concentration detergent liquid can be uniformly immersed throughout the laundry. The amount of pre-water supply is controlled by the opening time of the main water supply solenoid valve 20. For example, the pre-water supply amount is about 4 L when the amount of the laundry 38 is less than 4 kg, and about 101 1 when the amount of the laundry 38 is 4 to 8 mm: ^.

This pre-water supply step is performed at the same time as the high-concentration detergent liquid generation step in step 403. This is because, as described above, it takes 2 to 3 minutes for dissolving the detergent, and by performing the pre-watering step during this time, the washing time can be reduced. Furthermore, since the time from the end of pre-water supply to the end of detergent dissolution is a deferred time, the tap water can be sufficiently permeated into the laundry 38. For example, if the water supply flow rate from the main water supply solenoid valve 20 is 15 L per minute and the pre-water supply amount is 10 L, the pre-water supply ends in 40 seconds. If the detergent dissolution time is 2 minutes, a stationary time of 1 minute and 20 seconds can be obtained.

Step 4 0 5 The electric clutch mechanism 62 of the driving device 6 is controlled to the dehydration / drying mode, and the driving motor 61 is operated at a low speed to rotate the washing / dewatering tub 2 and the stirring blade 4 at a low speed. Then, open the auxiliary water supply solenoid valve 22 and dilute and supply the detergent dissolution container 21 with water to dilute the high-concentration detergent solution and allow it to overflow from the overflow section to the water inlet 19. Send. At the same time, the main water supply solenoid valve 20 is opened and water is supplied to the water inlet 19 to dilute the high-concentration detergent solution into a preferable high-concentration detergent solution and spray it on the laundry 38 in the washing and dewatering tub 2. To permeate the laundry 38. At this time, the preferable detergent concentration of the high-concentration detergent solution is as follows: since the laundry 38 in the washing and dewatering tub 2 described later rotates together with the washing and dewatering tub 2, The high-concentration detergent liquid flowing down from the water inlet 19 is uniformly scattered and permeates the laundry 38. The rotation of the laundry 38 may be performed by rotating the stirring blade 4 with the washing and dewatering tub 2 stationary. In particular, by rotating the stirring blade 4 relatively to the washing and dewatering tub 2, the laundry is moved and the position is changed in the washing and dewatering tub 2, so that the high-concentration detergent solution is used. Can be applied more uniformly to the laundry 38.

The high-concentration detergent liquid that has fallen on the laundry 38 quickly penetrates and penetrates into the interior of the laundry 38, and causes the detergent component to act on the dirt attached to the laundry 38.

Step 4 0 6

Laundry 38 that has been impregnated with a high-concentration detergent solution is allowed to stand for a predetermined time. This deferment is a time for further promoting the penetration of the high-concentration detergent solution into the laundry 38 and the effect of the detergent's chemical detergency on stains, and is omitted as necessary. Here, the improvement in the degree of cleaning with a high-concentration detergent solution is explained. The powdered synthetic detergent has a detergent that removes dirt, an alkali agent that assists the activator, and a detergent. These components, which contain additives such as builders such as light, enzymes, and anti-redeposition agents, and fluorescent brighteners, contribute to the detergency when a high-concentration detergent solution is used. It mainly involves surfactants, zeolites, alkaline agents, and enzymes. '

Surfactants gather their lipophilic groups toward the surface of the soil, adsorb to the soil, soak into the soil and laundry by penetrating action, dissolve oil stains in water by emulsifying action, and disperse by water. It works by mixing lipophilic solid particles with water. Then, by applying the mechanical action of the washing machine, the dirt is separated from the laundry and moves into the washing water. Fig. 5 shows the concentration of the detergent solution permeating the laundry and the cleaning rate. These are the results of a beaker test showing the relationship of In this test, the detergent concentration was obtained by immersing a human-contaminated cloth in a detergent solution produced by dissolving a powdered synthetic detergent in detergent water having a hardness of 100 ppm for 5 minutes (no mechanical force was applied). It was observed the relationship between the cleaning rate and the cleaning rate. '' The washing rate of the washing water at the detergent concentration (1 time) is about 3%, but at 5 times the detergent concentration, the washing rate rises sharply to 12%, and at 10 times the washing rate is 15%. %, 20 times the cleaning rate is 17%, but from 10 times to 20 times, the increase in the cleaning rate tends to be saturated. From these results, it is understood that the concentration of the high-concentration detergent solution is 5 times or more and at most about 20 times. As described above, in the high-concentration detergent solution, the action of the surfactant is enhanced, so that the effect of removing dirt is greatly improved. Commercially available precare detergents are high-concentration liquid detergents that are applied directly to soiled areas such as collars and sleeves before washing, but use the effects shown in Fig. 5. In addition, The detergent of Precare detergent is equivalent to a detergent solution with a detergent concentration of 10 times. By infiltrating laundry with high-concentration detergent liquid made with ordinary powdered synthetic detergent, the effect of pre-care detergent can be realized without complicated pretreatment.

In addition, when the concentration of the surfactant is increased, the permeation rate of the detergent solution into the laundry is improved. Fig. 6 shows the results of measuring the relationship between the detergent solution penetration rate and the detergent solution concentration into the artificially contaminated cloth. The permeation rate is expressed as a ratio to tap water. The penetration rate ratio is almost proportional to the detergent concentration. When the detergent concentration is 1 times the same as that of the washing water, the permeation rate ratio is about 1.1, which is almost the same as that of tap water.However, when the detergent concentration is 5 times, it is about 3 times, and when it is 10 times, it is about 3 times. It becomes about 8 times by 4 times and 20 times. In this way, when the high-concentration detergent liquid is sprayed on the laundry, the permeation rate is large, so that the detergent liquid penetrates the laundry at a high speed and quickly reaches the soil, and the high-concentration detergent component is removed. Acts strongly on dirt and improves cleaning power. Furthermore, since the detergent liquid permeates into the laundry at a high speed, the sprayed detergent liquid does not permeate into the laundry and does not flow to the bottom of the washing tub (outer tub). Effective washing of concentrated detergent solution

It can penetrate the rinse.

Zeolite is generated by removing the metal ion (hardness component) contained in tap water (softening) and combining the surfactant with the hardness component. Suppress formation of metal stones. That is, it functions to suppress a decrease in the amount of the effective surfactant in the washing water. However, with the general usage of powdered synthetic detergent of about 20 g / 30 L (detergent amount and washing water amount), there is a shortage of zeolite, and effective surfactants are greatly reduced. It will decrease.

However, with a small amount of tap water (detergent dissolving water), the powdered synthetic detergent High-concentration detergent solution (for example, a detergent concentration of 10 times the detergent concentration of the washing water) produced by dissolving zeolite has a low zeolite concentration due to the small amount of metal ions. It is possible to suppress the reduction of the effective and effective surfactant to a very small amount (about 2%).

Fig. 7 shows the relationship between the hardness of detergent-dissolved water and the amount of effective surfactant (the amount of surfactant that can work on dirt) when powdered synthetic detergent containing zeolite is used. It is a relationship. The amount of the effective surfactant is expressed as a ratio to the amount of the surfactant added. In other words, 100% indicates that all the added surfactants are effective, and the smaller the percentage, the more the hardness component and the surfactants are bonded and the amount of the surfactant is reduced due to metal mineralization. To do so.

The higher the hardness, the lower the effective surfactant amount. At a hardness of 100 ppm, the ratio of the effective surfactant is 90% at a detergent concentration of 1 times, and the concentration of the effective surfactant is reduced by 10 to 10 times, while the concentration of the effective surfactant is reduced by 10%. The high-concentration detergent solution has a reduction of 98% in the effective surfactant amount to only 2%.

As described above, in the high-concentration detergent solution, since the amount of zeolite is large relative to the amount of detergent dissolution water, metal ions are removed (softened) from the detergent dissolution water, which is effective. The amount of surfactant can be secured. Therefore, the action of the above-mentioned surfactant is sufficiently exerted, and a high detergency can be obtained. As described above, zeolite is used as a water softener to soften hard water (hard water).

Alkali agents have the function of adjusting the degree of alkalinity (PH) of the detergent solution, stabilizing free fatty acids in sebum dirt, and removing dirt easily. FIG. 8 is a characteristic diagram showing the relationship between the detergent concentration of the detergent solution and the alkalinity (PH). Alkaline degree is tap water (PH 7.3) Then, when the detergent concentration of the washing water (detergent concentration × 1) is reached, it rises sharply.

The PH is about 10. Thereafter, the concentration gradually increases as the detergent concentration increases, and the pH becomes about 11 at a detergent concentration of 0.10 times.

Fig. 9 is a characteristic diagram of a beaker test showing the relationship between the degree of alkalinity (PH) and the chemical cleaning rate in washing water with a detergent concentration of 1 times. In this test, the alkalinity was changed by adding an alkaline agent to a detergent solution (wash water) with a detergent concentration of 1x, which was produced by dissolving a powdered synthetic detergent in detergent water with a hardness of 0 ppm. The change in the cleaning rate when the cleaning was performed was observed. At an alkali degree of 10 (equivalent to washing water with a detergent concentration of 1), the cleaning rate is about 6%, but an alkali degree of 11 (equivalent to a detergent solution with a detergent concentration of 10 times). In this case, the cleaning rate is about 8%, indicating that the cleaning power is increased by improving the degree of alkalinity.

Enzymes have an action of decomposing proteins and lipids in soil, and facilitate the removal of soil by a surfactant. FIG. 10 is a characteristic diagram of a beaker test showing the relationship between the detergent concentration of the detergent solution and the detergency depending on the presence or absence of the enzyme. This test was conducted to observe the relationship between the concentration of a detergent solution produced by dissolving a powdered synthetic detergent differing only in the presence or absence of the enzyme in detergent-dissolved water having a hardness of 0 ppm and the washing rate. The washing rate of the powdered synthetic detergent containing the enzyme increased significantly as the detergent concentration increased, and the high-concentration enzyme accelerated the decomposition of protein stains and lipid stains. You can see what will be done.

As described above, the high-concentration detergent solution is sprayed and permeated into the laundry, so that the high-concentration surfactant, zeolite, alli agent, and enzyme work to greatly improve the detergency. Can be made to work.

Step 4 0 7

Open main water supply solenoid valve 20 and auxiliary water supply solenoid valve 22 to open tap water Start supplying (wash water). This washing water is supplied in steps

The water is reached up to the water amount determined in 402, but it is interrupted during the water supply to detect the laundry amount (powder value) and the laundry quality of the laundry 38. The suspended water level is a water level suitable for detection of the amount of cloth and the quality of the cloth set in advance on the micro computer 16a '. The auxiliary water supply electromagnetic valve 22 is opened to clean the detergent dissolving container 21. It is better to rotate the washing and dewatering tank 2 and the stirring blade 4 at a low speed as in step 405. This is because when the tap water is supplied, the detergent liquid of about 10 times concentration that has permeated the laundry 38 is gradually diluted, but the laundry / dehydration tub 2 is rotated to rotate the laundry 38 By supplying water while rotating, the detergent liquid in the laundry is evenly diluted, and the degree of dirt removal can be reduced. When the water is supplied up to the suspension water level, the concentration of the detergent liquid is approximately doubled. Therefore, it is not necessary to supply water while rotating the washing and dewatering tub 2 thereafter.

Step 4 0 8

Detects the amount of compress and the quality of the cloth, corrects the amount of water supplied, and determines the washing process (washing process and rinsing process). In this cloth detection, the water supply is interrupted at a predetermined low water level, the electric operation clutch mechanism 62 of the driving device 6 is controlled to the stirring mode, and the driving motor 61 is energized for a short time. The stirring blade 4 was driven to rotate to detect the first deceleration characteristic (the amount of compress cloth) in the inertial rotation at the time of deenergization, and then the water supply was restarted and the washing water was replenished to the predetermined high water level. Later, the water supply is interrupted and the drive motor 61 of the drive unit 6 is energized for a short time to rotate the stirring blade 4 to detect the second deceleration characteristic in the inertial rotation at the time of deenergization. The fabric of the laundry 38 is detected based on the difference between the first attenuation characteristic and the second attenuation characteristic. This cloth detection control is no longer required by the initial setting. Omit it. The time and water flow (strength of mechanical agitation) in the washing and rinsing process are determined according to the fabric.

Step 4 0 9

Supply tap water up to the water amount (water level) determined in step 402. With this water supply, the washing water is diluted with a highly concentrated detergent solution to a detergent * degree (1 times) which is preferable for washing. As a result, the laundry 38 is immersed in the washing water having a predetermined detergent concentration (1 time) in the washing and dewatering tub 2.

In the water supply in step 407-409, the high-concentration detergent liquid is diluted with high-rigidity tap water, but the detergent components penetrate into the laundry in a high-concentration state. The water supply does not impair the cleaning action of the detergent components, since it is after the soil has been affected.

Step 4 1 0

The driving device 6 is controlled so as to perform the washing process with the washing water flow and the washing time set in step 408. In this washing step, the driving device 6 controls the electric operation clutch mechanism .62 to the washing mode, and repeats the forward / reverse operation of the driving electric motor 61. Repeat the washing and dewatering tub 2 'and the stirring blade 4 in opposite directions to rotate them forward and backward.

Here, the relationship between the washing time, the degree of washing, and the cloth entanglement ratio in the washing process will be described. '

Fig. 11 shows the relationship between the washing time and the degree of washing. In the washing process, in order to remove dirt attached to the laundry 38, the washing / dewatering tub 2 and the stirring blade 4 are repeatedly rotated in opposite directions to rotate the laundry. Apply mechanical force to 3 8. Also, the stains on the laundry 38 are affected by the chemical detergency of the detergent. The characteristic curve 1001 is obtained by dissolving the detergent with washing water and performing the washing step without performing the step of infiltrating the laundry 38 with the high-concentration detergent solution. . That is, it shows the washing time and washing degree when the washing process is performed by the conventional washing method. The conventional washing method is to wash laundry by adding detergent at a rate of 20 g / 30 L, which is the amount of detergent required for washing.

Washing is shown in Fig. 11 because the chemical effect of the detergent on the soiling of the laundry and the mechanical power of the washing machine remove the soiling from the laundry. According to the relationship, the degree of cleaning is improved. The conventional washing time is generally about 8 to 10 minutes, and the washing index at this time is about 50.

The characteristic curve 1002 is obtained when the washing (stirring) step is executed after the high-concentration detergent liquid is permeated into the laundry 38. In this embodiment, since the washing process is performed after the high-concentration detergent solution is permeated into the laundry 38, the degree of washing according to the characteristic curve 1002 is obtained. Therefore, the required degree of cleaning can be obtained with a small mechanical force in a relatively short washing time.

As described above, by infiltrating the high-concentration detergent solution and then proceeding to the washing step and stirring for about 8 minutes, a washing degree of 90 can be realized.

For this reason, by adopting a washing method in which the high-concentration detergent solution is caused to fall onto the laundry 38 and permeate it, even if the washing time is within 5 minutes, the laundry 3 Stain 8 is better than before. For this reason, it is possible to provide a high-concentration detergent liquid permeation cleaning method in which the washing power is improved even if the mechanical power of the washing machine is reduced.

Here, the mechanical force is the forward and reverse rotation of the washing and dewatering tub 2 and the stirring blade 4. It can be controlled by adjusting the ON-OFF time of rotation, adjusting the number of revolutions, and adjusting the washing (stirring) time. .

Fig. 12 shows the relationship between the washing time and the cloth entanglement rate. The characteristic curve 1101 is obtained when the washing process is performed with a small mechanical force, and the characteristic curve 1102 is obtained when the washing process is performed with a large mechanical force. It is a thing. The mechanical force in the washing process is proportional to the magnitude of the agitation force (forward / reverse rotation angle and rotation speed) of the washing and dewatering tub 2 and the agitating blade 4, so that large mechanical force is generated. As the rotation angle of the washing and dewatering tub 2 and the stirring blade 4 increases, the cloth entanglement rate increases. In this embodiment, since the required cleaning power can be obtained with a small mechanical power, the cleaning process is performed with the cloth entanglement ratio of the characteristic curve 111. It is possible to realize a entanglement ratio of 10% or less. In other words, by adopting the high-concentration detergent liquid permeation cleaning method, the stains on the laundry 38 can be removed better with less mechanical power than with the conventional cleaning method.

Therefore, it is possible to reduce the mechanical force of the washing machine and reduce the damage and entanglement of the laundry 38.

Step 4 1 1

Open the drain solenoid valve 3 3 to drain the washing water out of the machine.

Step 4 1 2

Open the main water supply solenoid valve 20 and the auxiliary water supply solenoid valve 22 and supply rinsing water (tap water) to the set water volume. At this time (when water is supplied for final rinsing when performing multiple rinsings), the auxiliary water supply solenoid valve 22a is also opened as necessary to supply a softening agent. .

Step 4 1 3 The rinsing process is performed by controlling the driving device 6. In the washing process using the high-concentration detergent liquid immersion cleaning method, the softening effect of the zeolite in the high-concentration detergent solution works, so that the surfactant is adsorbed on the laundry 38. Increase the amount of metal lithology generated is suppressed. As a result, the release of the surfactant during rinsing is promoted, and the rinsing performance is improved (the dilution ratio is reduced by about 20%, the dilution ratio: the interface in the rinsing water relative to the amount of the surfactant in the washing water). The ratio of the amount of the activator) can be used to perform a predetermined rinsing with a small rinsing power (mechanical power).

Tip 4 1 4

Open the drain solenoid valve 3 3 to drain the rinsing water out of the machine.

Step 4 1 5

By keeping the drain solenoid valve 33 open, the electric clutch mechanism 62 of the driving device 6 is controlled to the dehydration / drying mode, and the driving motor 61 is operated at high speed. The water in the laundry 38 is centrifugally dewatered by rotating the washing / dewatering tub 2 and the stirring blade 4 integrally at a high speed. In the state where the centrifugal dehydration is completed, the laundry 38 is in a state of being pressed against the side wall of the washing and dewatering tub 2 and adhered thereto.

Step 4.16

The electric clutch mechanism 62 of the driving device 6 is controlled to the dehydration / drying mode, and the driving motor 61 is operated at a low speed to rotate the washing and dewatering tub 2 and the stirring blade 4 at a low speed. The blower 26 is operated to draw air from the outer tub 5 out of the outlet 5a, and ascend the water-cooled dehumidification duct 23 from the cooling water sprinkling section 24 to the water-cooled part. Cooling and dehumidifying by cooling water supplied to the dehumidifying duct h23, sucked into the circulation fan 26 through the downdraft duct 25, and ascended from the circulation fan 26 Outlet 3 through air duct 27 and heater 29 And then heated by a heater 29 and blown toward the vicinity of the inner wall surface in the washing and dewatering tub 2 in a direction opposite to the rotation direction of the washing and dewatering tub 2 It generates air and dries the laundry in the washing and dewatering tub 2.

When the laundry 38, which has been centrifuged and dewatered and adheres to the side wall of the washing and dewatering tub 2, is dried with hot air, wrinkles are generated on the laundry 38. Specifically, the stirring blade 4 is rotated forward and reverse to move the laundry 38 so as to dry it.

When the cloth entanglement ratio is 10% or less, even after the final dehydration is completed and the hot air is dried as described above, it is possible to prevent uneven drying and wrinkles.

In this embodiment, the flow rate of the wet feed water for the wet X level in which the laundry is wetted with water, and the detergent feed water for dissolving the powdery synthetic detergent to generate a high-concentration detergent solution. The flow rate and the dilution water supply flow rate and water volume for diluting the highly concentrated detergent solution are determined by the flow rate of the main water supply solenoid valve 20 and the auxiliary supply water solenoid valve 22 (the flow passage). The actual water supply flow rate fluctuates depending on the water pressure of the water source (water supply), although it is set according to the area) and the water supply time. Therefore, the water flow rate of the main water supply solenoid valve 20 and the auxiliary water supply solenoid valve 22 is set based on the flow rate at the lowest possible water pressure, and the water level sensor 15 is monitored. The actual water supply time when water is supplied up to a predetermined water level is measured, and the water pressure of the water source is obtained and stored by an arithmetic process based on the measured water supply time. At the time of dissolving water supply and dilution water supply, intermittent water supply is performed by intermittently supplying water by intermittently opening and closing the main water supply solenoid valve 20 and the auxiliary water supply solenoid valve 22 so that the average value becomes the specified flow rate. Perform flow control such as this. The above-described embodiment is a fully automatic washing and drying machine. However, when the washing machine without a drying function is implemented, the warm air in the above-described embodiment is used. By omitting the circulating drying means and the control processing thereof, it can be carried out in a similar manner. That is, in the above-described embodiment, the hot air circulating drying means is omitted, and the drying control processing step 41 executed by the control unit 16 in the control device 41 By omitting step 6, it is possible to realize an automatic washing machine without a drying function. '

Also, the washing machine and the washer / dryer of the present invention can employ different systems for washing and rinsing. In the above-described embodiment, the vertical washing and dewatering tub 2 has been described as an example. However, it is also possible to use a generally-used drum type washing and dewatering tub. '

In addition, the stirring blade 4 located at the center of the washing and dewatering tub, which stirs the laundry forward and backward, has a stirring blade called a pulse pipe with blades on a disk, and a large blade. Agitating blades called the “Agitator type” that can be rotated forward and backward within 0 degrees for washing can be used. Further, a configuration may be adopted in which a stirring blade having a pulse shape for moving the laundry is provided integrally with the washing and dewatering tub at the bottom of the washing and dewatering tub.

Also, the powdered synthetic detergent used can be changed to a liquid synthetic detergent having the same detergent components.

Claims

The scope of the claims

l. In a washing machine that executes the washing process by supplying water after infiltrating the laundry in the washing and dewatering tub with a high-concentration detergent solution,

A high-concentration detergent liquid generating step of dissolving the detergent in detergent-dissolved water to generate a high-concentration detergent liquid; an infiltration step of diluting the high-concentration detergent liquid to spread and permeate the laundry; A washing machine characterized by comprising a control means for executing and controlling a washing step of applying a mechanical force to the laundry in the washing water generated by supplying an amount of water necessary for washing later.

2. The washing machine according to claim 1, further comprising: means for supplying warm air into the washing and dewatering tub, wherein each of rinsing and dewatering steps is performed after the washing step. A washing machine characterized by comprising a control means for executing a drying step of supplying hot air to the drying apparatus to dry dehydrated laundry.

3. In the washing machine according to claim 1 or 2, the control means includes a step of washing the high-concentration detergent liquid by the powdery synthetic detergent generated in the high-concentration detergent liquid generation step in the washing step. The powdery detergent 'and the high-concentration washing are performed in the high-concentration detergent liquid generation step and the permeation step by spraying on laundry while diluting the detergent concentration to 5 to 20 times the detergent concentration. Laundry characterized in that it is a control means for increasing the degree of water softening with zeolite contained in the powdered synthetic detergent so that the detergent-dissolved water to be mixed with the chemical liquid is permeated into the laundry. Dryer.

4. The washing machine according to claim 1 or 2, wherein the control means has a detergent concentration of 80 to 500 times the detergent concentration of the washing water of the powdery synthetic detergent in the high-concentration detergent liquid producing step. Make the high-concentration detergent solution, and dilute the high-concentration detergent solution to 5 to 20 times the detergent concentration of the washing water in the washing process. By spraying on the laundry while releasing, the degree of water softening of the detergent solution mixed with the powdered synthetic detergent and the high-concentration detergent solution is increased by the softener contained in the powdered synthetic detergent fc. A washing machine, characterized in that it is a control means for controlling the height of the laundry so that it can penetrate the laundry.

5. In a washing machine in which the laundry in the washing and dewatering tub is impregnated with a high-concentration detergent solution and then supplied with water to execute the washing process.

The washing and dehydrating tub is provided with a stirring blade for applying mechanical force to the laundry, and a high-concentration detergent solution generating step of dissolving the detergent with detergent-dissolving water to generate a high-concentration detergent solution, and washing the high-concentration detergent solution. Control means for controlling the execution of the infiltration step of spraying and impregnating the items, and the washing step of applying the necessary amount of water for washing after the infiltration step and applying a mechanical force to the laundry in the generated washing water. ,

The control means moves the stirring blade relative to the washing and dewatering tub in the permeation step, thereby rotating or agitating the laundry while the high concentration detergent liquid is being stirred. A washing machine characterized by spraying water onto laundry.