JP3825280B2 - Washing and drying machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing / drying machine.
[0002]
[Prior art]
In the washing operation, after supplying tap water (washing water), the washing dryer performs a washing operation in which mechanical force is applied to the laundry by rotating the agitating blade forward and backward, and then tap water (rinsing water). Rinsing operation that applies mechanical force to laundry clothes in the same manner, and then performs a dehydration operation that centrifugally dehydrates the rinsing water contained in the laundry clothes by rotating the washing and dewatering tank, and then In addition, a drying operation is performed in which warm air is supplied to the washing and dewatering tub to dry the laundry.
[0003]
As a washing and drying machine that executes such a series of operations, there are JP-A-11-347281, JP-A-11-347282, JP-A-11-347296, and the like.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide an efficient washing and drying machine.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a washing / dehydrating tub installed in an outer tub, a rotating body installed at the bottom of the washing / dehydrating tub, and a drive for rotating the washing / dehydrating tub and the rotating body. The apparatus and a circulation fan suck in the moist air in the outer tub from the lower part of the outer tub, water-cool and dehumidify it with water-cooled dehumidifying means, and then heat it with the heating means to supply it as warm air into the washing and dehydrating tub Hot air circulation drying means, humidity detection means for detecting the humidity of the circulating air after the hot air circulation drying means sucks from the outer tank and passes through the water cooling dehumidification means, the drive device, the circulation fan, and the water cooling dehumidification means And a control device for controlling the heating means ,
When the drying operation is started, the control unit performs a first drying operation control performed by operating the circulation fan, the heating unit, and the driving device to rotate the washing and dewatering tub at a high speed. When the humidity of the circulating air decreases to a predetermined value during the operation control, the rotation speed of the washing and dewatering tub is changed to a rotation speed lower than the first rotation speed, and the second cooling / dehumidifying means is further operated. The drying operation control is executed .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a washing / dehydrating tub installed in the outer tub, a rotating body installed at the bottom of the washing / dehydrating tub, and a drive for rotating the washing / dehydrating tub and the rotating body. The apparatus and a circulation fan suck in the moist air in the outer tub from the lower part of the outer tub, water-cool and dehumidify it with water-cooled dehumidifying means, and then heat it with the heating means to supply it as warm air into the washing and dehydrating tub Hot air circulation drying means, humidity detection means for detecting the humidity of the circulating air after the hot air circulation drying means sucks from the outer tank and passes through the water cooling dehumidification means, the drive device, the circulation fan, and the water cooling dehumidification means And a control device for controlling the heating means ,
When the drying operation is started, the control unit performs a first drying operation control performed by operating the circulation fan, the heating unit, and the driving device to rotate the washing and dewatering tub at a high speed. When the humidity of the circulating air decreases to a predetermined value during the operation control, the rotation speed of the washing and dewatering tub is changed to a rotation speed lower than the first rotation speed, and the second cooling / dehumidifying means is further operated. This is a washing and drying machine that executes the drying operation control . According to this configuration, the drying efficiency is improved because warm air is uniformly applied to the laundry in the washing and dewatering tub together with the dehydrating effect by the first drying operation , and the water-cooled dehumidifying means is detected by detecting the humidity in the first drying operation. Since the operation is shifted to the second drying operation control to be operated, drying time can be shortened, power saving and water saving can be achieved, and an efficient washing and drying machine can be obtained.
[0007]
According to the second aspect of the present invention, there is provided a washing / dehydrating tub installed in the outer tub, a rotating body installed at the bottom of the washing / dehydrating tub, and the washing / dehydrating tub and the rotating body being driven to rotate. A driving device, a drain electromagnetic valve for draining from the outer tub, and a circulation fan that sucks wet air in the outer tub from the lower part of the outer tub and water-cools and dehumidifies it with water-cooled dehumidifying means and then heats it with a heating means. Humidity detection for detecting the humidity of the circulating air after the hot air circulation drying means sucks from the outside tank and passes through the water-cooling dehumidification means. Means, a control device for controlling the drive device, the drain electromagnetic valve, the circulation fan, the water-cooled dehumidifying means and the heating means ,
When the drying operation is started, the control unit operates the circulation fan, the heating unit, and the driving device in a state where the drain electromagnetic valve is opened to rotate the washing / dehydrating tank at a high speed to perform a first drying operation. Control, when the humidity of the circulating air decreases to a predetermined value during the first drying operation control, the rotational speed of the washing and dewatering tub is changed to a rotational speed lower than the first rotational speed, Furthermore , the washing / drying machine is characterized in that second drying operation control for operating the water-cooled dehumidifying means is executed . According to this configuration, the drying efficiency is improved because warm air is uniformly applied to the laundry in the washing and dewatering tub together with the dehydrating effect by the first drying operation , and the water-cooled dehumidifying means is detected by detecting the humidity in the first drying operation. Since the operation is shifted to the second drying operation control to be operated, drying time can be shortened, power saving and water saving can be achieved, and an efficient washing and drying machine can be obtained.
[0018]
【Example】
FIG. 1 is a schematic view showing a washing / drying machine according to an embodiment of the present invention in a longitudinal section.
[0019]
Reference numeral 1 denotes a frame constituting the outer shell. Reference numeral 2 denotes a washing and dewatering tub, which has a water passage hole 2a on the peripheral wall thereof, is provided with a fluid balancer 3 on the upper edge thereof, and is provided with a rotating body 4 rotatably inside the bottom. The rotating body 4 has a large diameter (preferably 90% or more of the diameter of the washing and dewatering tub 2) and is bent so that the peripheral edge is raised, and a water passage hole 4a is provided in a lower region. Reference numeral 5 denotes an outer tub containing the washing / dehydrating tub 2, and a driving device 6 is attached to the outside of the bottom portion by a steel plate mounting base 7, and the anti-vibration support device 8 is attached from the four corners of the upper end portion of the outer frame 1. Support to hang.
[0020]
The drive device 6 includes a drive motor, an electric operation clutch mechanism, and a planetary gear speed reduction mechanism, and rotates the rotating body 4 (stirring mode) while the washing / dehydrating tub 2 is stationary, and rotates with the washing / dehydrating tub 2. The body 4 is rotated in the opposite direction (washing mode), and the washing / dehydrating tub 2 and the rotating body 4 are integrally rotated in the same direction (dehydration / drying mode).
[0021]
The top cover 9 formed with the clothing input opening 9 a is fitted into the opening edge so as to cover the upper opening of the frame body 1, and is attached to the frame body 1 together with the front panel 10 and the back panel 11 with mounting screws.
[0022]
A front panel box 12 formed between the top cover 9 and the front panel 10 includes a power switch 13, an operation panel 14 having an input switch group and a display element group, and a water level signal corresponding to the water level in the outer tub 5. The water level sensor 15 for generating the pressure and the control unit 16 are incorporated. These constitute a control device.
[0023]
A back panel box 17 formed between the top cover 9 and the back panel 11 incorporates a washing water supply means and a high-concentration detergent liquid generation means so as to be installed side by side.
[0024]
The washing water supply means is constituted by a main water supply electromagnetic valve 20 having a water inlet side connected to a faucet connection port 18 and a water outlet side connected to a water injection port 19.
[0025]
The high-concentration detergent liquid generating / supplying means supplies a small amount of detergent-dissolved water from the auxiliary water supply electromagnetic valve 22 to the detergent-dissolving container 21, and stirs the powdered detergent contained in the detergent-dissolving container 21 while stirring the detergent. Dissolve in dissolved water to produce a high concentration detergent solution. The detergent dissolution container 21 has an overflow portion (not shown) connected to the water supply port 19, and the generated high-concentration detergent solution is diluted with additional water supply (diluted water supply) to increase the amount of overflow from the overflow portion. Supply to the water inlet 19. The detergent dissolving water for producing the high concentration detergent liquid is set to a small amount so as not to overflow from the overflow portion of the detergent dissolving container 21, and is diluted to a detergent concentration preferable to be submerged in the laundry at the time of dilution water supply. In addition, the main water supply electromagnetic valve 20 is also opened to supply additional dilution water to the water inlet 19.
[0026]
When a finishing agent feeder is attached to the detergent dissolution container 21, an auxiliary water supply electromagnetic valve 22a for pouring out the finishing agent is provided.
[0027]
As shown in FIG. 1, the hot air supply means heats the air sucked from the lower part 5 a of the outer tub 2 through the duct 27 by the heater 29 and blows it out from the outlet 30.
[0028]
The hot air circulation drying means is formed so as to extend upward in the vertical state along the outer wall surface on the rear side of the outer tub 5 from the suction port 5a formed on the side wall near the bottom of the outer tub 5, and the sucking port 5a. From a water-cooled dehumidifying duct 23 that dams washing water that has entered from the inside, a cooling sprinkler 24 that is located above the water-cooled dehumidifying duct 23 and supplies cooling water to the duct, and a water level of the outer tub 5 in the washing operation And a descending air duct 25 extending vertically toward the lower side of the outer tub 5 along the outer wall surface of the outer tub 5 and the lower airflow duct disposed in the lower space of the outer tub 5. A circulation fan 26 that sucks air from the air duct 25 and generates circulating air; a rising air duct 27 that extends vertically from the outlet of the circulation fan 26 along the outer wall surface of the outer tub 5; Installed on the outer tank upper cover 28 A heater (PTC heater) 29 for heating the circulated air to be fed from the serial rising air duct 27 comprises the outlet 30 blows toward the inside the washing and dewatering tank 2 a circulation air heated by the heater 29.
[0029]
In the descending air duct 25, a humidity sensor 40 and a first temperature sensor 41 which are humidity detecting means are installed, and a second temperature sensor 42 is installed in the air path downstream of the heater 29.
[0030]
In addition, a lint collecting filter (not shown) is installed at the folded portion from the upper part of the water-cooled dehumidifying duct 23 to the descending air duct 25.
[0031]
The water-cooled dehumidifying duct 23, the descending air duct 25, and the ascending duct 27 are mounted side by side in the circumferential direction of the outer tub 5 on the outer wall surface on the rear side of the outer tub 5.
[0032]
And this warm air circulation drying means drains the washing water in the outer tub 5 after washing, and operates the circulation fan 26 while rotating the washing and dewatering tub 2 at a high speed and rotating at a low speed after dehydrating. In the process of sucking out the humid air in the outer tub 5 and the washing / dehydrating tub 3 from the suction port 5a and ascending the water-cooled dehumidifying duct 23, the water is cooled by the cooling water supplied from the cooling water spraying section 24 into the water-cooled dehumidifying duct 23. To dehumidify. Thereafter, the cooled and dehumidified air descends the descending air duct 25 and is sucked into the circulation fan 26, and is sent from the circulation fan 26 through the ascending duct duct 27 and the heater 29 to the outlet 30 and heated by the heater 29 for washing. It blows in the direction opposite to the rotation direction of the washing / dehydrating tank 2 toward the vicinity of the inner wall surface in the cum / dehydrating tank 2. The circulating air blown into the washing / dehydrating tub 2 in this way touches the laundry in the washing / dehydrating tub 2 and dries the laundry.
[0033]
The clothing input opening 9 a formed in the upper surface cover 9 is configured to be opened and closed by the outer lid 31, and the opening 28 a formed in the outer tub upper cover 28 is configured to be opened and closed by the inner lid 32.
[0034]
A drain port 5 b formed at the bottom of the outer tub 5 is connected to a drain hose 34 via a drain electromagnetic valve 33. The air trap 5 c is connected to the water level sensor 15 through the air tube 35. At the lower end edge of the frame body 1, a base 37 made of synthetic resin with legs 36 attached to the four corners is attached.
[0035]
Reference numeral 38 denotes a laundry put in the washing and dewatering tub 2.
[0036]
FIG. 2 is a longitudinal side view showing a specific configuration of the above-described washing and drying machine. A part of the description overlapping that of FIG. 1 is omitted.
[0037]
The drive device 6 includes a drive motor 61, an electrically operated clutch mechanism 62, a planetary gear speed reduction mechanism 63, a center output shaft 64, and an outer output shaft 65. The drive device 6 is integrally assembled on the lower surface of the steel mounting base 7, and this attachment is performed. The base 7 is attached to the bottom surface of the outer tub 5 by screwing.
[0038]
The drive motor 61 is a reversible rotation type electric motor of a plurality of stages or continuously variable transmission. In this embodiment, the rotational speed for rotating the rotating body 4 while the washing / dehydrating tub 2 is stationary at the time of detection, and the rotational speed for rotating the washing / dehydrating tank 2 and the rotating body 4 integrally during wet water supply. A rotational speed at which the washing and dewatering tub 2 and / or the rotating body 4 repeats normal rotation and reverse rotation when the high-concentration detergent solution is dropped on the laundry and submerged, and the sun of the planetary gear reduction mechanism during washing The rotation speed for rotating the gear, the rotation speed for rotating the washing / dehydrating tub 2 and the rotating body 4 integrally at 950 rpm at the time of dehydration, and 700 rpm for the washing / dehydrating tub 2 and the rotating body 4 at the time of hot air drying. The rotation speed was set to rotate at 100 rpm and 35 rpm, and to rotate the rotating body 4 independently.
[0039]
The planetary gear speed reduction mechanism 63 has a configuration in which a carrier supporting the planetary gear is coupled to the center output shaft 64, an internal gear is coupled to the outer output shaft 65, and a sun gear is directly coupled to the drive motor 61.
[0040]
The electric operation clutch mechanism 62 selectively sets the stirring mode, the washing mode, and the dehydration / drying mode by operating the operation lever 62b by the electric operation device 62a. In the agitation mode, the rotational force of the drive motor 61 is output to the planetary gear reduction mechanism 63 and the center output in a state where the stationary force is applied to the washing and dewatering tub 2 by engaging the internal gear of the planetary gear reduction mechanism 63 with the stationary member. This is transmitted to the rotating body 4 through the shaft 64 to rotate the rotating body 4 to execute cloth amount detection and cloth quality detection based on the load acting on the rotating body 4. In the washing mode, the sun gear is rotated by the drive motor 61 with the internal gear of the planetary gear speed reduction mechanism 63 being free to rotate, whereby the rotational force of the drive motor 61 is applied to both the central output shaft 64 and the outer output shaft 65. Transmission is performed in the opposite direction, and the washing and dewatering tub 2 and the rotating body 4 are repeatedly rotated forward and backward in the opposite direction to execute washing. In the dehydration / drying mode, the internal gear of the planetary gear speed reduction mechanism 62 is connected to the drive motor 61, and the sun gear and the internal gear are integrally rotated by the drive motor 61, and the center output shaft 64 and the outer output shaft are driven. 65 is rotated in the same direction, the washing and dewatering tub 2 and the rotating body 4 are rotated at a low speed in the same direction to perform wet water supply, are rotated at a high speed to perform centrifugal dehydration, and are rotated at various speeds to warm air. It is the structure which performs drying.
[0041]
FIG. 3 is a block diagram showing an electrical configuration of the washing / drying machine.
[0042]
The control unit 16 that receives power via the power switch 13 is configured with a microcomputer 16a as the center, and includes a power supply circuit 16b, a driving device 6, a main water supply electromagnetic valve 20, an auxiliary water supply electromagnetic valve 22, a detergent agitation motor 39, and waste water. The drive circuit 16c which has the semiconductor alternating current switching element (FLS) group for controlling the electric power feeding to the solenoid valve 33, the circulation fan 26, the heater 29, and the cooling water spray solenoid valve 24a is provided.
[0043]
The drive motor 61 of the drive device 6 has a stator winding 61a and a rotation sensor 61b, and the electric operation clutch mechanism 62 has an electric operation machine 62a and a position sensor 62c for detecting the operation position.
[0044]
The drive circuit 16c includes two semiconductor AC switching elements (FLS) 16c1 and 16c2 for forward / reverse rotation control with respect to power supply control to the stator winding 61a of the drive motor 61 in the drive device 6. FLS16c1 is a semiconductor switching element for forward rotation power supply control, and FLS16c2 is a semiconductor AC switching element for reverse rotation power supply control. In this embodiment, the rotational speed control of the drive motor 61 is configured such that power is supplied to the stator winding 61a by phase control using the FLS 16c1 and 16c2, but an inverter-driven brushless motor is used. The configuration can be configured to be performed by PWM control or PAM control. Further, the driving device 6 includes an FLS 16c3 for controlling power supply to the electric operating machine 62a of the electric operating clutch mechanism 62.
[0045]
Further, the drive circuit 16c includes FLSs 16c4 to 16c10 for controlling power supply to the main water supply electromagnetic valve 20, the water supply electromagnetic valve 22, the detergent stirring motor 39, the drainage electromagnetic valve 33, the circulation fan 26, the heater 29, and the cooling water spraying electromagnetic valve 24aa. Prepare. The drive circuit 16c controls the conduction state of the FLS 16c1 to FLS 16c10 in accordance with an instruction from the microcomputer 16a, and performs power feeding control to the subordinate load.
[0046]
The microcomputer 16a further includes a rotation sensor 61b of the drive motor 61, a position sensor 62c of the electric operation clutch mechanism 62, a water level sensor 15 for detecting the washing water level in the outer tub 5, a humidity sensor 40, and first and second temperatures. By connecting to the sensors 41 and 42, the unbalance detection sensor 43, and the operation panel 14 and executing a control processing program incorporated in advance, the input switch group 14a, the water level sensor 15, the rotation sensor 61b, and the position sensor of the operation panel 14 are executed. 62c, humidity sensor 39, first and second temperature sensors 41, 42, and imbalance detection sensor 43 take in signals and control drive circuit 16c to detect, generate high-concentration detergent solution, wet laundry, high Concentrated detergent solution generation / supply (soaking), washing, rinsing, dehydration and hot air drying are performed, Displaying the progress by controlling the display element group 14b of 14. Here, the unbalance detection sensor 43 causes the washing / dehydration tub 2 (outer tub 5) to move according to the unbalance of the distribution of the laundry 38 in the washing / dehydration tub 2 when the washing / dehydration tub 2 is rotated. It is a sensor that detects a large fluctuation above a predetermined value.
[0047]
The input switch group 14a of the operation panel 14 includes a course setting switch for setting the type of operation (washing / drying) to be executed and a mode setting switch for setting the execution method of washing and drying according to the laundry (dry matter). . The course setting switch is equipped with a setting switch for selectively setting the washing / drying course, washing course, and drying course, and the mode setting switch includes the standard mode, shirt mode, blanket mode, fresh drying mode, dry mode, and finish. A switch is provided to selectively set the mode and accessory drying mode.
[0048]
Here, the washing / drying course is a course that consistently executes the operation from washing to drying, the washing course is a course that carries out the operation from washing to centrifugal dehydration, and the drying course is washing and dehydrating. It is a course that performs only the laundry drying operation. In addition, the standard mode is a mode in which the operation of each course is executed as standard, and the shirt mode is a mode in which each course is executed for laundry that is prone to wrinkles, such as a shirt or a blouse. The mode is a mode in which each course is executed for a bulky laundry such as a blanket, and the raw drying mode is a mode in which a course until drying for a short time is performed to the extent that the laundry basket is stretched. The dry mode is a mode in which each course is executed for laundry with a dry mark, the finishing mode is a mode in which a drying course for finishing is executed for laundry that is dry, and the accessory drying mode is In this mode, a drying course is performed for laundry that is anxious to lose its shape, such as clothes and hats.
[0049]
Next, each operation will be described.
[0050]
FIG. 4 is a flowchart of each operation executed by the microcomputer 16 a in the control unit 16.
[0051]
The microcomputer 16a executes the following control process when the power switch 13 is turned on.
[0052]
Step 401
The laundry clothes 38 is put into the washing / dehydrating tub 2, the input switch group 14a of the operation panel 14 is operated to perform initial setting, and when the washing / drying start button switch is pressed, automatic control processing of each operation is started. .
[0053]
In the initial setting, the course and mode are selected and set. Here, the operation control when the washing / drying course is set is illustrated.
[0054]
Step 402
A detection control process of the amount of cloth of the laundry 38 is performed. This cloth amount detection is performed by controlling the electric operation clutch mechanism 62 of the drive device 6 to the agitation mode in the dry cloth state before water supply, energizing the drive motor 61 for a short time to rotationally drive the rotating body 4, and This is detected based on the deceleration characteristics in inertial rotation. Based on the detection result (cloth amount of 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 this amount of detergent is displayed by the display element group 14b. An amount of powder synthetic detergent is put into the detergent dissolution vessel 21.
[0055]
Step 403
The electric operation clutch mechanism 62 of the drive device 6 is controlled to the dehydration / drying mode, the drive motor 61 is operated at a low speed, and the main water supply electromagnetic valve 20 is opened while the washing / dehydration tub 2 and the rotating body 4 are rotated at a low speed, thereby making tap water. Is directly supplied to the water inlet 19 to spray the tap water on the laundry 38 in the washing and dewatering tub 2. The laundry 38 absorbs the dispersed tap water and wets it, reducing the bulk. The amount of tap water sprayed at this time is controlled according to the amount of the laundry 38 detected by the detection operation, and is controlled so as to decrease when the amount of the laundry 38 is small and to increase as the amount increases. The amount of tap water sprayed on the laundry 38 is, for example, about 4 L (liter) when the amount of the laundry 38 is less than 4 kg, and 10 L when the amount is 4 kg to 8 kg. This amount of water supply is controlled by the valve opening time of the main water supply electromagnetic valve 20.
[0056]
Then, if necessary, the tap water is left in a wet state for a predetermined time so as to sufficiently penetrate the laundry 38. This stationary time is controlled according to the amount of laundry 38 and the amount of tap water sprayed. During the stationary time for sufficiently spreading the sprayed tap water into the laundry 38, the washing / dehydrating tank 2 may be stopped. Rotate at speed.
[0057]
Step 404
A small amount of tap water (detergent-dissolving water) that does not overflow into the detergent dissolution container 21 by opening the auxiliary water supply electromagnetic valve 22 is supplied, and the powder in the detergent dissolution container 21 that is added to generate washing water with a preferred detergent concentration. A high-concentration detergent solution is produced by dissolving a synthetic detergent with a small amount of detergent-dissolving water while stirring with a rotating body. The amount of the detergent-dissolving water is set to a suitable amount of water that does not overflow from the overflow portion of the detergent-dissolving container 21 and that dissolves the powder-synthetic detergent well while stirring the powder-synthetic detergent with a rotating body.
[0058]
Step 405
The electric operation clutch mechanism 62 of the drive device 6 is controlled to the dehydration / drying mode, the drive motor 61 is operated at a low speed, and the auxiliary water supply electromagnetic valve 22 is opened while rotating the washing / dehydration tub 2 and the rotating body 4 at a low speed. Diluted water is supplied to the detergent dissolution container 21 to dilute the high-concentration detergent liquid and overflow the overflow portion to send it to the water inlet 19 and open the main water supply electromagnetic valve 20 to supply water to the water inlet 19 to supply the high-concentration detergent liquid. Is diluted into a preferred high-concentration detergent solution and descends on the laundry 38 in the washing and dewatering tub 2 to be immersed in the laundry 38.
[0059]
The high-concentration detergent solution submerged in the laundry 38 increases the cleaning power by causing the chemical high cleaning power to act on the laundry 38, so that the mechanical force applied to the laundry 38 during the washing operation is reduced. It is possible to reduce fabric damage and fabric entanglement.
[0060]
Synthetic powder detergents include a surfactant that removes dirt, an alkali agent that assists the active agent, a builder such as a zeolite, an enzyme, an anti-redeposition agent, and an additive such as a fluorescent brightening agent. Zeolite functions to suppress the decrease in the amount of effective surfactant in the wash water by removing (softening) the metal ions contained in tap water and suppressing the formation of metal soap. In the washing water produced by dissolving the powder synthetic detergent in a large amount of tap water, the amount of zeolite is insufficient and the effective surfactant is greatly reduced.
[0061]
However, a high concentration detergent solution (for example, a detergent concentration 10 times the detergent concentration of washing water) produced by dissolving a synthetic powder detergent with a small amount of tap water (detergent dissolving water) has a small amount of metal ions. Thus, the zeolite can function sufficiently and the decrease in the effective surfactant can be suppressed to a very small amount (about 2%). Therefore, when such a detergent solution of high concentration is applied to the laundry and submerged, the detergent solution penetrates the laundry (dirty clothing) at a high speed (about four times faster than the washing water) and quickly becomes dirty. The surface active agent promotes emulsification and dispersion of soil, the alkali material promotes swelling and saponification of oil soil, and the enzyme exerts detergency to decompose fat and protein soil.
[0062]
Step 406
This is a time for accelerating the penetration of the high-concentration detergent liquid that has fallen on the laundry 38 into the laundry 38 and can be omitted.
[0063]
Step 407
The main water supply electromagnetic valve 20 and the auxiliary water supply electromagnetic valve 22 are opened to start supplying tap water (wash water). The washing water is supplied up to the amount of water determined in step 402, but is interrupted in order to detect the cloth amount (packing value) and the cloth quality of the laundry 38 during the water supply. This interrupted water level is a water level suitable for detecting the amount and quality of the compress set in advance in the microcomputer 16a.
[0064]
Step 408
Detecting the amount of poultice and the quality of the fabric to correct the amount of washing water supplied and determine control constants for washing, rinsing, dewatering and drying operations. In this cloth quality detection, water supply is interrupted at a predetermined low water level, the electric operation clutch mechanism 62 of the drive device 6 is controlled to the detection mode, the drive motor 61 is energized for a short time, and the rotating body 4 is driven to rotate. The first deceleration characteristic (packet amount) in inertial rotation at the time of extinction is detected, and then the water supply is resumed to supply the washing water to a predetermined high water level, and then the water supply is interrupted to drive the drive motor of the drive device 6 61 is energized for a short time to rotate the rotating body 4 to detect a second deceleration characteristic in inertial rotation at the time of deactivation, and washing is performed based on the difference between the first attenuation characteristic and the second attenuation characteristic. The cloth quality of the object 38 is detected. This cloth quality detection control is omitted when it becomes unnecessary by the initial setting. Then, depending on the cloth quality, the time and water flow (strength of mechanical stirring) in the washing and rinsing operations and the control constant in the drying operation are determined.
[0065]
Step 409
Tap water is supplied up to the amount of water determined in step 402. With this water supply, the washing water is further diluted with a high-concentration detergent solution to obtain a detergent concentration preferable for washing. As a result, the laundry 38 is immersed in the washing water having a predetermined detergent concentration in the washing / dehydrating tub 2, and the washing / dehydrating tub 2 and the rotating body 4 are rotated to apply mechanical washing power to the laundry 38. It is in a state suitable for acting.
[0066]
Step 410
The drive device 6 is controlled to perform the washing operation of the washing water flow and washing time set in step 408. In this washing operation, the drive device 6 controls the electric operation clutch mechanism 62 to the washing mode, and repeats the forward / reverse operation of the drive motor 61 to repeat the washing / dehydrating tub 2 and the rotating body 4 in opposite directions. A mechanical cleaning force is applied to the laundry 38 by rotating. The machine (stirring) force acting on the laundry 38 adjusts the ON-OFF time limit of the forward / reverse rotation of the washing / dehydrating tub 2 and the rotating body 4, adjusts the rotation speed, and adjusts the washing (stirring) time. It can be controlled by doing.
[0067]
Since this washing and drying machine uses the high chemical cleaning power of the high-concentration detergent solution, the laundry 38 is more easily cleaned than the conventional cleaning system even with a small mechanical (stirring) power. As a result, the damage and entanglement of the laundry 38 can be reduced.
[0068]
Step 411
The drain electromagnetic valve 33 is opened to drain the wash water out of the machine.
[0069]
Step 412
The main water supply electromagnetic valve 20 and the auxiliary water supply electromagnetic valve 22 are opened to supply rinsing water (tap water) to a set amount of water. If necessary, the auxiliary water supply electromagnetic valve 22a is opened to mix the finishing agent.
[0070]
Step 413
The drive device 6 is controlled to execute the rinsing operation.
[0071]
Step 414
The drain electromagnetic valve 33 is opened to drain the rinse water out of the machine.
[0072]
Step 415
While the drain electromagnetic valve 33 is kept open, the electric operation clutch mechanism 62 of the driving device 6 is controlled to the dehydrating / drying mode, and the driving motor 61 is operated at a high speed, whereby the washing / dehydrating tub 2 and the rotating body 4 are integrated. By rotating at a high speed of 950 rpm, the moisture of the laundry 38 is centrifugally dehydrated. In the state where the centrifugal dehydration is finished, the laundry 38 is pressed against the side wall of the washing and dewatering tub 2 and is attached to the side wall surface.
[0073]
Step 416
The electric operation clutch mechanism 62 of the driving device 6 is controlled to the dewatering / drying mode, the driving motor 61 is operated to rotate the washing / dehydrating tub 2 and the rotating body 4, and the circulation fan 26 is operated to rotate the inside of the outer tub 5. Air is sucked out from the suction port 5a, cooled and dehumidified by the cooling water supplied from the cooling sprinkler 24 into the water-cooled dehumidifying duct 23 when passing through the water-cooled dehumidifying duct 23, and sucked into the circulation fan 26 through the descending air duct 25. From the circulation fan 26, the air is sent to the outlet 30 through the ascending air duct 27 and the heater 29, and is heated by the heater 29 toward the vicinity of the inner wall surface in the washing / dehydrating tub 2 in the rotation direction of the washing / dehydrating tub 2. On the other hand, circulating air blown in the opposite direction is generated, and the laundry in the washing and dewatering tub 2 is dried.
[0074]
This warm air drying operation will be described in more detail with reference to FIGS.
[0075]
In this warm air drying operation, basically, according to a predetermined time schedule set in advance, as described above, while the washing and dewatering tub 2 and the rotating body 4 are rotated, the circulation fan 26 is operated to perform washing and removal. Executes by circulating the air in the water tank 2 (outer tank 5) through the ducts 23, 25, 27, sprinkling water from the cooling sprinkler 24, water-cooling and dehumidifying the circulating air, and heating the water-cooled and dehumidified circulating air by the heater 29. However, according to the set mode, the amount of the laundry 38, the humidity of the circulating air (dryness of the laundry 38), the temperature and the unbalance detection result, the rotation control of the washing / dehydrating tub 2 and the rotating body 4 Operation control of the circulation fan 26, heat generation control of the heater 29, and watering control of the cooling watering unit 24 are executed.
[0076]
The rotation of the washing and dewatering tub 2 in this warm air drying operation sets 700 rpm as a semi-high speed rotation speed, 100 rpm as a low speed rotation speed, and 35 rpm as an ultra-low speed rotation speed. The specific values of these rotational speeds are not limited to these values, and can be changed as necessary. For example, it is preferable to change according to the amount of cloth and the quality of cloth. The first drying operation in which the washing and dewatering tub 2 is rotated at the quasi-high speed rotation speed is suitable for promoting the centrifugal dehydration and heat drying of the laundry 38 in the initial heating stage of the drying operation. . In this initial heating stage, water-cooled dehumidification of the circulating air is not performed. In the second drying operation in which the washing / dehydrating tub 2 is rotated at a lower rotational speed than the first drying operation, the circulating air is uniformly blown into the washing / dehydrating tub 2 in the subsequent water-cooled dehumidifying and drying stage. Suitable for touching the object 38. The rotation of the washing / dehydrating tub 2 at an ultra-low speed is suitable for blowing and circulating air while slowly rotating the laundry 38 in the shirt mode, the blanket mode, the dry mode, and the accessory drying mode. .
[0077]
The swing of the washing / dehydrating tub 2 (outer tub 5) due to the imbalance of the laundry 38 becomes larger as the rotational speed of the washing / dehydrating tub 2 is higher. When the shake is detected in the low speed rotation, the speed control is performed so that the speed is changed to the ultra low speed rotation speed, so that the hot air drying is continued while reducing the inconvenience (vibration and noise) due to the shake. When the rotational speed is decreased by detecting the shake, the drying time is extended to the required dryness.
[0078]
If clogging occurs in the hot air circulation path (particularly the lint collecting filter), the air volume of the circulating air is reduced and the drying efficiency is lowered. This clogging detection is performed by monitoring the temperature difference between the circulating air before and after the heater 29 (detected temperatures of the first and second temperature sensors 41 and 42) or by monitoring the current consumption of the heater 29. To do. The temperature difference of the circulating air becomes larger when the yarn waste collecting filter is clogged and the air volume of the circulating air is reduced, and the current consumption of the heater 29 uses the PTC heater. Detecting the degree of clogging of the lint collecting filter by monitoring the temperature difference of the circulating air or the current consumption of the heater 29 because the air volume of the circulating air decreases due to clogging. Can do.
[0079]
In addition, an excessive increase in the temperature of the air in the washing / dehydrating tub 2 may damage the laundry 38 and the components of the washing / drying machine, particularly the resin molded parts, in an overheated state. In order to prevent such overheating, the amount of power supplied to the heater 29 is reduced when the temperature of the circulating air (temperature detected by the second temperature sensor 41) blown from the outlet 30 into the washing and dewatering tub 2 reaches 106 ° C. To control.
[0080]
Further, during the hot air drying, the hot air keeps hitting the laundry 38, and the local (surface portion) drying of the laundry 38 is promoted to prevent the temperature of the portion from rising locally. In order to achieve this, it is desirable that the laundry 38 is replaced (inverted) or loosened according to the degree of progress of drying so that the warm air uniformly touches the laundry 38. It is desirable that the stirring for the replacement (inversion) and the unraveling of the laundry 38 be performed with a stirring force in accordance with the amount of the laundry 38 and the progress of drying (dryness and operating time). The strength of the stirring force can be changed depending on the rotation speed and the rotation time of the rotating body 4.
[0081]
FIG. 5 is a flowchart of the hot air drying control in the standard mode, and shows a first control routine.
[0082]
Step 501
When this hot air drying operation is started, an operation timer for executing the time schedule is started.
[0083]
Step 502
A branch to a control routine according to the amount of the laundry 38 is performed. Here, the cloth amount of the laundry 38 employs the cloth amount detected at the time of washing and branches depending on whether it is 2 kg or more, which is a reference value for determining the amount of the laundry. When the amount of cloth is large, the process proceeds to step 503.
[0084]
Step 503
The heater 29 is powered (turned on) so as to generate heat in the strong heat generation mode, and the circulation fan 26 is operated (turned on) to heat while circulating the air in the washing / dehydrating tub 2.
[0085]
Step 504
The drive device 6 is controlled (turned on) so that the washing / dehydrating tub 2 and the rotating body 4 are rotated at a quasi-high speed of 700 rpm.
[0086]
Step 505
The detection signal of the humidity sensor 40 is monitored, and a predetermined reference dryness (here, the resistance value of the humidity sensor 40 is 20 kΩ = corresponding to the state where the dryness of the laundry 38 has progressed to 95%) is detected. To branch control.
[0087]
Step 506
When the dryness of the laundry 38 has not progressed to the standard dryness, the drying operation is performed for a predetermined time (the laundry and dewatering tub 2 is rotated at a semi-high speed rotation speed to promote centrifugal dehydration and heat drying of the laundry 38. In this case, the current state is continued until 10 minutes have passed since the start of the drying operation.
[0088]
Step 507
When the drying operation time has passed 10 minutes, the rotation of the washing / dehydrating tub 2 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions to agitate the laundry 38 to be replaced (reversed) and loosened. The drive device 6 is controlled to perform the above. The stirring force by the rotating body 4 for this replacement and loosening is set in accordance with the amount of cloth of the laundry 38, and since the amount of cloth is large in this control routine, the stirring force by the rotating body 4 is made relatively strong.
[0089]
Step 508
The driving device 6 is controlled so that the washing / dehydrating tub 2 and the rotating body 4 are rotated at a low speed of 100 rpm.
[0090]
Step 509
The detection signal of the humidity sensor 40 is monitored, the predetermined reference dryness is detected, and the control is branched.
[0091]
Step 510
When the dryness of the laundry 38 has not progressed to the reference dryness, the drying operation is performed for a predetermined time (a time suitable for promoting the heat drying of the laundry 38 by rotating the washing and dewatering tub 2 at a low speed). In this case, the current state is continued until 20 minutes have passed since the start of the drying operation.
[0092]
Step 511
When the drying operation has passed a predetermined time (20 minutes), the cooling water spray solenoid valve is configured to start the water cooling / dehumidification (water cooling / dehumidification drying) of the circulating air by supplying the cooling water from the cooling water spray unit 24 into the water cooling / dehumidification duct 23 24a is controlled to open (ON).
[0093]
Step 512
Replacement (reversal) and loosening of laundry at a predetermined cycle (here 15-minute cycle), dryness detection whether drying has progressed to the standard dryness, water-cooled dehumidification drying that rotates the washing and dewatering tank at a low speed for a predetermined time Repeat until. This predetermined time is a time when water-cooled dehumidification / drying is desirable, and is set to 300 minutes from the start of the drying operation.
[0094]
Step 513
In steps 509 and 512, it is detected that the dryness has advanced to the reference dryness, or when the drying operation in step 512 has passed a predetermined time (300 minutes), the end operation is executed. In this end operation, the heat generation of the heater 29 is stopped (turned off), and the driving device 6 is controlled so as to repeat replacement (reversal) and loosening of the laundry 38 for a predetermined time (here, 10 minutes is set). Thereafter, the driving device 6, the circulation fan 26, and the cooling water spray solenoid valve 24a are stopped (turned off), and the process is ended.
[0095]
Step 514
In step 505, when it is detected that the dryness of the laundry 38 has advanced to the standard dryness, the power supply to the heater 29 is controlled so that the heater 29 generates heat in the weak heat generation mode.
[0096]
Step 515
The drive unit 6 is controlled so that the laundry 38 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions so that the laundry 38 is stirred and replaced (reversed) and loosened. .
[0097]
Step 516
The driving device 6 is controlled so that the washing / dehydrating tub 2 and the rotating body 4 are rotated at a low speed of 100 rpm.
[0098]
Step 517
The drying operation is performed for a predetermined time (a time suitable for promoting the heat drying of the laundry 38 by rotating the washing and dewatering tub 2 at a low rotational speed, which is set to 10 minutes from the start of the drying operation). Continue the status quo until it has passed.
[0099]
Step 518
When the drying operation has passed a predetermined time (10 minutes), the cooling water spray solenoid valve is configured to start the water cooling / dehumidification (water cooling / dehumidification drying) of the circulating air by supplying the cooling water from the cooling water spray unit 24 into the water cooling / dehumidification duct 23. Open control of 24a is performed.
[0100]
Step 519
Repeated washing (reversal) and loosening of laundry at a predetermined cycle (15-minute cycle), water-cooled dehumidification drying that rotates the washing and dewatering tub at a low speed, and the drying operation time is a predetermined time (here, 50 minutes from the start of the drying operation) When the setting is passed, the operation proceeds to the end operation of step 513.
[0101]
FIG. 6 is a flowchart of the hot air drying operation control in the standard mode, and shows a second control routine. This second control routine is a control executed when the amount of cloth of the laundry 38 is small.
[0102]
Step 520
Power is supplied to the heater 29 so as to generate heat in the strong heat generation mode, and the circulation fan 26 is operated so as to heat it while circulating the air in the washing and dewatering tub 2.
[0103]
Step 521
The driving device 6 is controlled so that the washing and dewatering tub 2 and the rotating body 4 are rotated at 700 rpm which is a semi-high speed rotation speed.
[0104]
Step 522
The detection signal of the humidity sensor 40 is monitored, and a predetermined reference dryness (here, the resistance value of the humidity sensor 40 is 20 kΩ = corresponding to the state where the dryness of the laundry 38 has progressed to 95%) is detected. To branch control. When the dryness of the laundry 38 has advanced to the standard dryness, the routine proceeds to step 514.
[0105]
Step 523
When the dryness of the laundry 38 has not progressed to the standard dryness, the drying operation is performed for a predetermined time (the laundry and dewatering tub 2 is rotated at a semi-high speed rotation speed to promote centrifugal dehydration and heat drying of the laundry 38. In this case, the current state is continued until 10 minutes have passed since the start of the drying operation.
[0106]
Step 524
When the drying operation has passed a predetermined time (10 minutes), the cooling water spray solenoid valve is configured to start the water cooling / dehumidification (water cooling / dehumidification drying) of the circulating air by supplying the cooling water from the cooling water spray unit 24 into the water cooling / dehumidification duct 23. Open control of 24a is performed.
[0107]
Step 525
The drive unit 6 is controlled so that the laundry 38 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions so that the laundry 38 is stirred and replaced (reversed) and loosened. . The stirring force by the rotating body 4 for this replacement and loosening is set according to the amount of cloth 38 in the laundry 38, and since the amount of cloth is small in this control routine, the stirring force by the rotating body 4 is made relatively weak.
[0108]
Step 526
The driving device 6 is controlled so that the washing / dehydrating tub 2 and the rotating body 4 are rotated at a low speed of 100 rpm, and the process proceeds to step 512.
[0109]
FIG. 7 is a flowchart of hot air drying control in the shirt mode.
[0110]
Step 701
When the hot air drying operation is started, an operation timer for executing the time schedule is started.
[0111]
Step 702
The heater 29 is caused to generate heat in the weak heat generation mode, and the temperature of the hot air blown out from the outlet 30 into the washing / dehydrating tub 2 is set to 70 ° C. or less which is preferable for drying the shape memory cloth product (laundry). The power supply to 29 is controlled (ON), the circulation fan 26 is operated (ON) so as to heat the air in the washing and dewatering tub 2 while being circulated, and the cooling water is supplied from the cooling sprinkler 24 to the water-cooled dehumidifying duct 23. The cooling water spray solenoid valve 24a is controlled to be opened (ON) so as to start water-cooled dehumidification (water-cooled dehumidification drying) of the circulating air.
[0112]
Step 703
The driving device 6 is controlled so that the washing / dehydrating tub 2 and the rotating body 4 are rotated at 35 rpm which is an ultra-low speed rotation speed. Such an ultra-low rotation speed is suitable for preventing wrinkles caused by advancing drying in a state where a large centrifugal force acts on the laundry 38 and is pressed against the side wall surface of the washing and dewatering tub 2. is there.
[0113]
Step 704
The detection signal of the humidity sensor 40 is monitored, and a predetermined reference dryness (here, the resistance value of the humidity sensor 40 is 20 kΩ = corresponding to the state where the dryness of the laundry 38 has progressed to 95%) is detected. To branch control. When the drying is progressing to a predetermined reference dryness, the process proceeds to step 706 described later.
[0114]
Step 705
When the dryness of the laundry 38 has not progressed to the standard dryness, the drying operation is performed for a predetermined time (the washing / dehydrating tub 2 and the rotating body 4 are rotated at an ultra-low rotational speed to promote water-cooled dehumidification drying of the laundry 38. The present state is continued until a time that is suitable for the above-mentioned time, which is set to 10 minutes from the start of the drying operation.
[0115]
Step 706
The cooling sprinkling solenoid valve 24a and the heater 29 are turned off (stopped), and the semi-complete drying degree of the laundry 38 (the state where the resistance value of the humidity sensor 40 is 25 kΩ = corresponding to the state where the drying degree of the laundry 38 has advanced to 98%) Execute detection and loosening for a predetermined time (here, set to 5 minutes).
[0116]
Step 707
The heater 29 is turned on in the weak heat generation mode, the cooling water spray solenoid valve 24a is turned on, and the semi-complete dryness of the laundry 38 (the state where the resistance value of the humidity sensor 40 is 25 kΩ = the dryness of the laundry 38 is advanced to 98%. Detection of the laundry 38) and loosening the laundry 38 are executed for a predetermined time (set to 5 minutes here).
[0117]
Step 708
Steps 7 and 8 are repeated until a predetermined time (47 minutes is set here) from the start of drying.
[0118]
Step 709
After the heater 29 is turned off (heat generation is stopped) and the cooling operation is continued until a predetermined time (3 minutes) has elapsed, the driving device 6, the cooling water solenoid valve 24a and the circulation fan 26 are turned off (stopped), and the drying operation is completed.
[0119]
FIG. 8 is a flowchart of a first control routine of hot air drying control in the blanket mode.
[0120]
Step 801
When the hot air drying operation is started, an operation timer for executing the time schedule is started.
[0121]
Step 802
The power supply to the heater 29 is controlled so that the heater 29 generates heat in the weak heat generation mode, and the circulation fan 26 is operated to heat the heater 29 while circulating the air in the washing / dehydrating tub 2.
[0122]
Step 803
The driving device 6 is controlled so that the washing and dewatering tub 2 and the rotating body 4 are rotated at 700 rpm which is a semi-high speed rotation speed. The drying operation at the semi-high speed rotation speed is performed for a predetermined time (a time suitable for rotating the washing and dewatering tub 2 at the semi-high speed rotation speed to promote centrifugal dehydration and heat drying of the laundry (blanket) 38. In this case, the current state is continued until 10 minutes have passed since the start of the drying operation.
[0123]
Step 804
When the drying operation time has passed 10 minutes, the rotation of the washing / dehydrating tub 2 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions to agitate the laundry 38 to be replaced (reversed) and loosened. The drive device 6 is controlled to perform the above.
[0124]
Step 805
By supplying cooling water from the cooling water spraying section 24 into the water cooling dehumidification duct 23, the cooling water spray solenoid valve 24a is controlled to be opened so that water cooling dehumidification (water cooling dehumidification drying) of the circulating air is started. Then, the driving device 6 is operated so as to rotate the washing / dehydrating tub 2 and the rotating body 4 at 35 rpm, and the semi-complete drying degree of the laundry 38 (the state where the resistance value of the humidity sensor 40 is 25 kΩ = drying of the laundry 38) Detection corresponding to a state in which the degree has advanced to 98% is executed for a predetermined time (set to 3 minutes here).
[0125]
Step 806
The cooling water sprinkling solenoid valve 24a is closed (off), and the washing / dehydrating tub 2 and the rotating body 4 are rotated at 35 rpm while the laundry 38 is semi-completely dry (the humidity sensor 40 has a resistance value of 25 kΩ = the laundry 38 Detection corresponding to a state where the dryness has progressed to 98% is performed for a predetermined time (here, set to 3 minutes).
[0126]
Step 807
The drive unit 6 is controlled so that the laundry 38 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions so that the laundry 38 is stirred and replaced (reversed) and loosened. .
[0127]
Step 808
Steps 805, 806, and 807 are repeated until the drying operation time elapses a predetermined time (240 minutes here).
[0128]
Step 809
After the power supply to the heater 29 is turned off and the cooling operation is continued until a predetermined time (5 minutes) has elapsed, the driving device 6, the cooling water spraying electromagnetic valve 24a and the circulation fan 26 are turned off (stopped), and the drying operation is finished.
[0129]
FIG. 9 is a flowchart of a second control routine that is executed when it is detected in steps 805 and 806 that the laundry 38 has been dried to the semi-completely dry degree.
[0130]
Step 811
By supplying cooling water from the cooling water spraying section 24 into the water cooling dehumidification duct 23, the cooling water spray solenoid valve 24a is controlled to be opened so that water cooling dehumidification (water cooling dehumidification drying) of the circulating air is started. Then, the driving device 6 is operated so that the washing / dehydrating tub 2 and the rotating body 4 are rotated at 35 rpm, and the semi-complete drying degree of the laundry 38 (the state where the resistance value of the humidity sensor 40 is 70 kΩ = general laundry) In the (clothing) 38, detection of the degree of dryness corresponding to a state of progressing to 115 to 120% is performed for a predetermined time (here, set to 3 minutes).
[0131]
Step 812
The cooling sprinkling solenoid valve 24a is closed (off), and the semi-complete drying degree of the laundry 38 (the resistance value of the humidity sensor 40 is 70 kΩ) is detected while rotating the washing / dehydrating tub 2 and the rotating body 4 at 35 rpm. Execute time (set to 3 minutes here).
[0132]
Step 813
The drive unit 6 is controlled so that the laundry 38 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions so that the laundry 38 is stirred and replaced (reversed) and loosened. .
[0133]
Step 814
Steps 811, 812 and 813 are repeated until the drying operation time has passed a predetermined time (240 minutes in this case).
[0134]
When the resistance value of the humidity sensor 40 exceeds 70 kΩ in Steps 811 and 812, or when a predetermined time has passed in Step 814, the process proceeds to Step 809.
[0135]
Next, hot air drying control in the raw drying mode will be described. In this raw drying mode, replacement and loosening, detection of dryness, and water-cooled dehumidification drying in step 512 of the standard mode are performed for a predetermined time (the time until the laundry 38 is in a state of being freshly dried. Here, 27 minutes from the start of hot air drying. It is implemented by changing the setting so that it is performed until the setting).
[0136]
FIG. 10 is a flowchart of hot air drying control in the dry mode.
[0137]
Step 1001
When the hot air drying operation is started, an operation timer for executing the time schedule is started.
[0138]
Step 1002
Power is supplied to the heater 29 so as to generate heat in the weak heat generation mode, the circulation fan 26 is operated to heat the air in the washing / dehydrating tub 2 while circulating, and the washing / dehydrating tub 2 and the rotating body 4 are driven at a very low speed. Heating and drying for controlling the driving device 6 to rotate at a rotation speed of 35 rpm is executed until a predetermined time (in this embodiment, set to 10 minutes from the start of the drying operation).
[0139]
Step 1003
The cooling water spray solenoid valve 24a is opened and water-cooled dehumidification drying is performed for 3 minutes.
[0140]
Step 1004
The cooling water spray solenoid valve 24a is closed and heat drying is performed for 3 minutes.
[0141]
Step 1005
Steps 1003 and 1004 are executed for a predetermined time (here, 55 minutes or 115 minutes from the start of the drying operation) set in advance by the input switch group 14a.
[0142]
Step 1006
After stopping the heat generation of the heater 29 and continuing the cooling operation for a predetermined time (here, 3 minutes), the driving device 6, the circulation fan 26, and the cooling water spraying electromagnetic valve 24a are stopped and finished.
[0143]
Next, the hot air drying control in the finishing mode will be described. Since this finishing mode is a control according to the standard mode described above, the description will be made with reference to FIGS. 5 and 6, and a duplicate description will be omitted.
[0144]
In this finishing mode, the cloth amount determination (step 502) is performed by stirring and loosening the laundry 38 by repeatedly rotating the rotating body 4 in the forward and reverse directions while the washing and dewatering tub 2 is stationary. To detect the amount of cloth. This unraveling is omitted in the warm air drying that continues with washing and dehydration.
[0145]
And the rotational speed of the washing and dewatering tub 2 in steps 504 and 521 is set to a low rotational speed (100 rpm).
[0146]
The predetermined time in steps 506 and 523 is set to 5 minutes from the start of the drying operation.
[0147]
Further, the predetermined time in step 510 is set to 10 minutes from the start of the drying operation.
[0148]
In addition, the predetermined cycle in step 512 is set to a 4-minute cycle, and the predetermined time is set to 150 minutes from the start of the drying operation.
[0149]
The predetermined time in step 519 is set to 30 minutes from the start of the drying operation.
[0150]
Next, the accessory drying mode will be described with reference to FIG. This accessory drying mode is a drying mode for laundry that is anxious to lose its shape, such as a sack or hat, so it is placed in the washing and dehydrating tub 2 (in practice, on the rotating body 4). The hot air at a relatively low temperature (here, set to 60 ° C. or less) is rotated while the washing and dehydrating tub 2 and the rotating body 4 are rotated at a super-speed rotation so that the laundry is not displaced. The cooling water is dehumidified while the water is saved by intermittently supplying the cooling water to the cooling sprinkler 24.
[0151]
Step 1101
When this hot air drying operation is started, an operation timer for executing the time schedule is started.
[0152]
Step 1102
The circulation fan 26 is operated to start circulation of air in the washing and dewatering tub 2.
[0153]
Step 1103
Power is supplied to the heater 29 to generate heat in the weak heat generation mode and heat the circulating air, and the drive device 6 is controlled to rotate the washing / dehydrating tub 2 and the rotating body 4 at an ultra-low speed rotation speed of 35 rpm. This state is continued for a predetermined time (here, set to 2 minutes).
[0154]
Step 1104
The power supply to the heater 29 is turned off (heat generation is stopped), and the control state in which the washing / dehydrating tub 2 and the rotating body 4 are rotated at an ultra-low speed (35 rpm) is continued for a predetermined time (here, set to 2 minutes).
[0155]
Step 1105
Steps 1103 and 1104 are repeated for a predetermined time (here, set until 12 minutes have elapsed since the start of the drying operation).
[0156]
Step 1106
Power is supplied to the heater 29 to generate heat in the weak heat generation mode to heat the circulating air, and cooling water is supplied from the cooling sprinkler 24 into the water-cooled dehumidifying duct 23 to start water-cooled dehumidification (water-cooled dehumidification drying) of the circulating air. Thus, the cooling sprinkling electromagnetic valve 24a is controlled to be opened, and the control state in which the washing and dewatering tub 2 and the rotating body 4 are rotated at an ultra-low speed rotation speed (35 rpm) is continued for a predetermined time (here, set to 2 minutes).
[0157]
Step 1107
The power supply to the heater 29 is turned off, the cooling water spraying electromagnetic valve 24a is closed so as to stop the supply of the cooling water into the water-cooled dehumidifying duct 23, and the washing / dehydrating tub 2 and the rotating body 4 are rotated at an extremely low speed (35 rpm). The control state of rotating at is continued for a predetermined time (here, set to 2 minutes).
[0158]
Step 1108
Steps 1106 and 1107 are repeated for a predetermined time (here, 97 minutes have elapsed since the start of the drying operation).
[0159]
Step 1109
After stopping the heat generation of the heater 29 and continuing the cooling operation for a predetermined time (here, 3 minutes), the driving device 6, the circulation fan 26, and the cooling water spraying electromagnetic valve 24a are stopped and finished.
[0160]
【The invention's effect】
According to the present invention, an efficient washing and drying machine can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a washing / drying machine as an embodiment of the present invention in a longitudinal section.
FIG. 2 is a longitudinal side view showing a specific configuration of the washing / drying machine shown in FIG. 1;
FIG. 3 is a block diagram showing an electrical configuration of the washing / drying machine shown in FIGS. 1 and 2;
4 is a flowchart of washing / dehydrating and drying operations executed by a microcomputer in the control unit shown in FIG. 3;
FIG. 5 is a flowchart of a first control routine of hot air drying control in a standard mode.
FIG. 6 is a flowchart of a second control routine of hot air drying control in the standard mode.
FIG. 7 is a flowchart of hot air drying control in a shirt mode.
FIG. 8 is a flowchart of a first control routine of hot air drying control in a blanket mode.
FIG. 9 is a flowchart of a second control routine of hot air drying control in the blanket mode.
FIG. 10 is a flowchart of hot air drying control in a dry mode.
FIG. 11 is a flowchart of hot air drying control in the accessory drying mode.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 2 ... Washing and dewatering tank, 6 ... Drive device, 23 ... Water cooling dehumidification duct, 24 ... Cooling water spray part, 24a ... Cooling water spray solenoid valve, 26 ... Circulation fan, 29 ... Heater, 40 ... Humidity sensor, 41, 42 ... Temperature Sensor.

Claims (2)

A washing / dehydrating tub installed in the outer tub, a rotating body installed at the bottom of the washing / dehydrating tub, a driving device for rotationally driving the washing / dehydrating tub and the rotating body, and a circulation fan from the lower part of the outer tub Hot air circulation drying means for sucking in humid air in the outer tub and water-cooling dehumidification with water-cooling dehumidification means and then heating with heating means to supply the washing / dehydration tub as warm air; and hot air circulation drying Humidity detecting means for detecting the humidity of the circulating air after the means sucks from the outer tank and passes through the water-cooled dehumidifying means, and a controller for controlling the drive device, the circulation fan, the water-cooled dehumidifying means, and the heating means ,
When the drying operation is started, the control unit performs a first drying operation control performed by operating the circulation fan, the heating unit, and the driving device to rotate the washing and dewatering tub at a high speed. When the humidity of the circulating air decreases to a predetermined value during the operation control, the rotation speed of the washing and dewatering tub is changed to a rotation speed lower than the first rotation speed, and the second cooling / dehumidifying means is further operated. A washing and drying machine characterized by executing a drying operation control . A washing / dehydrating tub installed in the outer tub, a rotating body installed at the bottom of the washing / dehydrating tub, a driving device for rotationally driving the washing / dehydrating tub and the rotating body, and a drain electromagnetic valve for draining from the outer tub And a temperature supplied to the washing and dewatering tub as warm air by sucking wet air in the outer tub from the lower part of the outer tub with a circulation fan, water-cooling / dehumidifying with water-cooling / dehumidifying means, and heating with heating means. Air circulation drying means, humidity detection means for detecting the humidity of the circulating air after the hot air circulation drying means sucks from the outside tank and passes through the water-cooling dehumidification means, the drive device, the drain electromagnetic valve, and the circulation fan, A control device for controlling the water-cooled dehumidifying means and the heating means ,
When the drying operation is started, the control unit operates the circulation fan, the heating unit, and the driving device in a state where the drain electromagnetic valve is opened to rotate the washing / dehydrating tank at a high speed to perform a first drying operation. Control, when the humidity of the circulating air decreases to a predetermined value during the first drying operation control, the rotational speed of the washing and dewatering tub is changed to a rotational speed lower than the first rotational speed, Furthermore, a second drying operation control for operating the water-cooled dehumidifying means is executed .

Images