JP2003000984A - Washing/drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing/drying machine having a process for drying clothing by blowing warm air into an inner tub, which makes it possible to efficiently dry clothing without unevenness of drying by changing positions of laundry up and down, and right and left in a timer drying, in which a user sets an operation time. SOLUTION: An outer tub 3 is elastically suspended inside a case 1, and the inner tub 4 having a center axis of rotation in a perpendicular direction is rotatably supported in the outer tub 3. A rotor 5 is rotatably provided on an inside bottom part of the inner tub 4. The inner tub 4 or the rotor 5 is driven by a motor 9, and circulating air heated by a heater 13 is blown in the inner tub 4 by a drying blower 12. Drying operation is performed in a period of time set in an input setting means by a control means. The control means has two or more processes of different time ratios between a tub rotation mode for drying by rotating the inner tub 4 and a rotor rotation mode for drying by rotating the rotor 5. As time passes, a process having a greater time ratio of the rotor rotation mode is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a process of blowing warm air into an inner tub having a central axis of rotation in the vertical direction to dry clothes, and washing and drying can be performed consistently from washing to drying. It is about machines.

[0002]

2. Description of the Related Art Conventionally, a washing / drying machine of this type has a rotation center shaft in an outer tub elastically suspended in a housing, as disclosed in, for example, Japanese Patent Laid-Open No. 11-276761. It supports the inner tub in the vertical direction rotatably, and rotatably installs a rotary blade on the inner bottom of the inner tub. During the washing and rinsing steps, the rotary wing is rotated to load laundry (clothes) in the inner tub. In addition to washing and rinsing, in the dehydration process, the inner tank is rotated at high speed for dehydration, and in the drying process following the dehydration process, the air heated by the heating device is blown into the inner tank by a blower to dry it. There is.

The operation of the above structure will be briefly described. After the dehydration process, the rotating blades are rotated at a rotation speed of 130 r / m.
A scraping process was carried out by repeating 1 to 3 seconds for 1 second on and 0.5 seconds off by repeating right rotation and left rotation alternately for 2 to 3 reciprocations, and attached to the inner wall surface of the inner tank by centrifugal force during dehydration. Scrape off the laundry.

Next, after the scraping process, the drying process is started. First, the rotor is rotated at a rotation speed of 130 r / min for 0.5 seconds on and 0.5 seconds off, and is rotated right and left alternately. Repeating 5 to 10 reciprocating strokes, the laundry dispersed on the rotor blades is randomly replaced and loosened, and then warm air heated by the heating device is supplied into the inner tank for several minutes. Dry the laundry. And
The degree of dryness is judged, and if it is dry, the drying is finished and the air blow is started, but if it is not dry, the above-mentioned loosening process and the drying operation are repeated.

[0005]

In such a conventional washer / dryer, the degree of dryness is determined at every predetermined time, and if the drying is completed, the drying operation is ended and the air blowing operation is started. However, there is a problem that it is difficult for the user to use because the driving time cannot be predicted.

Further, since the loosening operation for 10 to 20 seconds and the stopping operation for several minutes from the beginning of drying are only repeated until the end of drying, the progress of the loosening process to the end of drying is low, so that the amount of laundry is small. If there are many, sufficient replacement operation is not performed, the drying speed of the upper laundry where hot air is likely to hit is faster, the drying speed of the lower laundry is slow, and there is a problem that uneven drying tends to occur. .

[0007] The present invention solves the above-mentioned conventional problems, and improves the ease of use by driving for a set time by the user, and even when there is a large amount of laundry, the laundry can be sufficiently moved vertically and horizontally. The purpose is to replace them so that they can be dried efficiently without uneven drying.

[0008]

In order to achieve the above object, the present invention rotatably supports an inner tank having a central axis of rotation in a vertical direction in an outer tank elastically suspended in a housing. , Rotatably provided on the inner bottom portion of the inner tub, the inner tub or the rotary wing is driven by a driving means, and the circulating air heated by the heating means is blown into the inner tub by the blowing means and by the cooling blasting means. Cooling air is introduced from the outside into the housing, and a signal from the input setting means for setting the drying operation time is input to the control means to control the operation of the driving means, air blowing means, heating means, cooling air blowing means, etc. The operation means is configured to be controlled, and the control means has two or more strokes having different time ratios of a tank rotation mode for drying while rotating the inner tank and a rotary blade rotation mode for drying while rotating the rotary blades, Rotor blade rotation mode over time During ratio is obtained to perform high stroke.

As a result, it is possible to improve the ease of use by operating the machine only for the time set by the user, and even when there is a large amount of laundry, the laundry can be fully replaced up, down, left and right to cause uneven drying. It can be dried efficiently.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention has an outer tub elastically suspended in a housing, and has a central axis of rotation in the vertical direction and is rotatably supported in the outer tub. And the inner tank
Rotating blades rotatably provided on the inner bottom of the inner tank, driving means for driving the inner tank or the rotating blades, air blowing means for blowing circulating air into the inner tank, and air blowing by the air blowing means. Heating means for heating air, cooling air blowing means for introducing cooling air into the housing from the outside, input setting means for setting a drying operation time, and the driving means by inputting a signal from the input setting means A blower means, a heating means, a cooling blower means and the like to control the operation to control the drying operation, the control means, while rotating the inner tank to dry the tank rotation mode, and the rotary blade It has two or more strokes with different time ratios of the rotary blade rotation mode that dries while rotating, and performs a stroke with a high time ratio of the rotary blade rotation mode with the passage of time, which is set by the user. Only time It is possible to improve the ease of use and to perform the air blowing operation and 燥 operation.

Further, by performing the process in which the time ratio of the rotary blade rotation mode is high as the drying progresses, the drying rate of the laundry is low in the first half of the drying, so that the tub rotation is the main drying method. It is possible to reduce the generation of wrinkles due to entanglement, and in the latter half of drying, the rotating blade rotation is the main drying, so even if there is a lot of laundry, it is possible to switch the laundry vertically and horizontally. Since it can be uniformly blown with warm air, it can be dried efficiently without uneven drying.

According to a second aspect of the present invention, in the first aspect of the present invention, the display means is provided, and the control means displays the dry operation time set by the input setting means on the display means. Since the user can check the operating time set by the input setting means with the numerical display of the display means, it is possible to eliminate mistakes when setting the operating time,
The driving time can be clearly notified to the user, and the usability can be improved.

According to a third aspect of the present invention, in the above-mentioned first aspect of the invention, when the drying operation time set by the input setting means is equal to or shorter than a predetermined time, the control means only travels in the rotor blade rotation mode. Is to do. This is most often used as finish drying (laundry that has been dried outside but not completely dried) when the set operating time is less than a predetermined time (for example, 1 hour). Even in the mode-only drying process, there is no problem of wrinkles caused by the entanglement of the laundry, and the laundry can be swapped vertically and horizontally, and the warm air can be uniformly applied to the laundry, so that the laundry can be efficiently dried.

According to a fourth aspect of the present invention, in the above-mentioned first aspect of the invention, the control means changes the time of each stroke based on the drying operation time set by the input setting means. Yes, the longer the set operating time is, the larger the amount of laundry is.Therefore, by increasing the time of each stroke as the set time becomes longer, it is possible to dry when the stroke is switched even if the amount of laundry is different. The degree can be made almost constant, the generation of wrinkles due to the entanglement of the cloth can be reduced, and drying can be performed efficiently without unevenness in drying.

According to a fifth aspect of the present invention, in the above-mentioned first aspect of the invention, the control means changes the strength of rotation of the rotor blades based on the dry operation time set by the input setting means. Normally, the longer the set operation time, the larger the amount of laundry.Therefore, as the set time becomes longer, for example, by setting the ON time longer than the standard time, even if there is a lot of laundry Since it is possible to change the laundry, it is possible to apply uniform warm air to the laundry so that there is no unevenness in drying and the laundry can be dried efficiently.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the casing 1 has a structure in which an outer tub 3 is elastically suspended by a plurality of suspensions 2 and vibrations during operation are absorbed by the suspensions 2. Inside the outer tub 3, an inner tub 4 having a central axis of rotation in the vertical direction and accommodating a laundry and an object to be dried (hereinafter referred to as clothes) is rotatably supported, and the inner bottom of the inner tub 4 is covered with clothes. A rotary blade 5 for stirring is rotatably provided. The rotary blade 5 is formed in a pot shape having an inclined outer surface.

A large number of small holes (not shown) are provided in the inner peripheral wall of the inner tank 4, and a fluid balancer 6 is provided above them. And, in the vicinity of the center of the bottom of the outer tank 3 and the inner tank 4,
A washing / dewatering shaft 7 having a hollow and biaxial structure, and a clutch 8 for switching the transmission of rotational force to the washing / dewatering shaft 7 when washing or dehydrating are provided. Motor (driving means) 9
Is provided in the outer tub 3 and drives the inner tub 4 or the rotary blades 5 via the clutch 8.

A passage is formed from the lower portion of the outer tub 3 to the circulation duct 11 via the expandable lower bellows-shaped hose 10.
The outlet of the circulation duct 11 is an air blower (air blower) 12 for drying.
Is connected to the entrance. An outlet of the drying blower 12 is connected to a passage 11a, a heater 13 as a heating means is provided in the passage 11a, and an expandable upper bellows-shaped hose 14 is connected to the passage 11a. The upper bellows-shaped hose 14 opens toward the inner tank 4, and the inner tank 4 communicates with the outer tank 3 through the small holes in the inner peripheral wall, so that these passages form a circulation path.

An openable / closable inner lid 15 is provided in the upper part of the inner tank 4, and a warm air blowout hole 16 continuing from an expandable / contractible upper bellows-shaped hose 14 is formed in the vicinity of the inner lid 15. The cooling blower (cooling blower means) 17 is attached to the side surface of the housing 1 so that the outside air can be introduced into the housing 1. The drain valve 18 drains the water in the outer tub 3, and the switching valve 19 switches the circulation path.

The water supply valve 20 supplies water into the inner tank 4, and the water level detecting means 21 detects the water level in the outer tank 3. The temperature detection means 22 detects the temperature of the circulating air, and is provided between the outlet of the drying blower 12 and the heater 13.

The control device 23 controls a washing process having washing, rinsing and dehydrating processes and a drying process following the washing process based on the setting contents set by the operation display unit 24. It is configured as shown in FIG.

The control means 25 is composed of a microcomputer or the like, and has a water level detecting means 21 and a temperature detecting means 22.
Of the clutch, the setting content is displayed on the display means 27 based on the setting content set by the input setting means 26, and the clutch is driven via the load driving means 28 including a bidirectional thyristor and a relay. 8. The operations of the drying blower 12, the heater 13, the cooling blower 17, the drain valve 18, the switching valve 19, the water supply valve 20, etc. are controlled to control the washing and drying process. 29 is a commercial power supply.

The rotation control means 30 is a part of the control means 25 and is constituted by a microcomputer or the like, and controls the inverter circuit 33 via the drive circuit 32 based on the information from the position detection means 31 to drive the motor 9 The rotation is controlled.

Although the motor 9 is a DC brushless motor, it is composed of a stator having three-phase windings and a rotor having two-pole permanent magnets arranged on a ring, which is not shown. The first winding 9a, the second winding 9b, and the third winding 9c that form the winding are wound around an iron core provided with slots.

The inverter circuit 33 is composed of a switching element composed of a parallel circuit of a power transistor (IGBT) and a reverse conducting diode. A series circuit of the first switching element 33a and the second switching element 33b, a series circuit of the third switching element 33c and the fourth switching element 33d, and a fifth switching element 3
3e and the sixth switching element 33f are connected in series, and the series circuits of the respective switching elements are connected in parallel.

Here, both ends of the series circuit of switching elements are input terminals, a DC power source is connected, and output terminals are connected to connection points of two switching elements which form a series circuit of switching elements. 3 output terminals
The U terminal, the V terminal, and the W terminal are connected to the U terminal, V terminal, and W terminal of the phase winding to form a series circuit of switching elements. Set to 3 states of voltage and release.

The switching elements are turned on / off by three position detecting means 31a, 31b, 31 which are Hall ICs.
It is controlled by the rotation control means 29 based on the information from c. The position detecting means 31a, 31b, 31c are arranged on the stator so as to face the permanent magnets of the rotor at an electrical angle of 120 degrees.

As shown in FIG. 3, while the rotor makes one revolution, the three position detecting means 31a, 31b, 31c output pulses at the timings shown in the figure. The rotation control means 29 detects the timing of the arrow shown in the figure (when the state of the signal of any of the three position detection means changes), and detects the position detection means 31a, 31b, 3 and 3.
By changing the on / off states of the switching elements 33a to 33f based on the signal of 1c, the U terminal, the V terminal,
Rotating the rotor by setting the W terminal to three states of positive voltage, zero voltage, and release, and energizing the first winding 9a, the second winding 9b, and the third winding 9c of the stator to create a magnetic field Is.

Further, the switching elements 33a, 33c,
33e are respectively subjected to pulse width modulation (PWM) control. For example, the rotation speed of the rotor is controlled by controlling the high and low conduction ratios at a repetition frequency of 10 kHz. Position detecting means 3
Each time the state of any of the signals 1a, 31b, 31c changes, the cycle is detected, the rotation speed of the rotor is calculated from the cycle, and the switching elements 33a, 33c, 33e are PWM-controlled so as to reach the set rotation speed. To do.

The resistor 34 senses a current, and the resistor 3
The input current value of the inverter 33 is detected by the voltage across 4. The commercial power supply 29 is connected to the inverter 33 via a DC power conversion device including a diode bridge 35, a choke coil 36, and a smoothing capacitor 37. However, this is an example, and the configuration of the DC brushless motor 9, the configuration of the inverter 33, and the like are not limited thereto.

As shown in FIG. 4, the operation display section 24 includes a water level setting switch 26a, a washing time setting switch 26b,
Rinsing frequency setting switch 26c, dehydration time setting switch 26d, drying timer setting switch 26e, start /
Pause switch 26f, course setting switch 26g,
An input setting means 26 such as a power on / off switch 26h,
Water level display unit 27a, washing time display unit 27b, rinse number display unit 27c, dehydration time display unit 27d, dryness display unit 27
e, a display unit 27 such as a number display unit 27f for displaying the remaining time of operation and a set time of the drying timer, a course display unit 27g, and the like. Here, regarding the driving course, the course setting switch 26g allows selection of an entrusted course from washing to drying and a delicate, washing only, and hurrying only course.

The operation of the above configuration will be described. First,
The operation method will be described with reference to FIG. Each time the course setting switch 26g is pressed, the control means 25 sequentially switches between an entrusted course that automatically performs washing and drying, and a delicate course that automatically performs only washing, a rugged course, and a rush course to display the course. This is displayed on part 27g.

Manual setting is also possible, and by pressing the water level setting switch 26a or the like, the water level, washing time, rinsing frequency, dehydration time, and drying time can be set as desired by the user. In particular, by pressing the drying timer setting switch 26e, the drying time can be set up to 3 hours in steps of 30 minutes, and the set time is displayed on the numeral display section 27f.

Then, the start / pause switch 26
If it is started by pressing f, the remaining operating time is displayed on the numerical display portion 27f. It is also possible to operate the drying only by pressing the drying timer setting switch 26e to set the drying time and pressing the start / pause switch 26f.

Next, the washing process will be described with reference to FIG. When the clothes 38, the detergent, etc. are put into the inner tank 4 and the operation is started, the control means 25 causes the rotation control means 30 to operate.
For example, the rotary blade 5 is rotated right and left twice for a time period of 1 second on and 2 seconds off. At this time, by inputting a signal from the position detecting means 31a, the amount of inertial rotation of the rotor when the motor 9 is turned off is detected to detect the amount of clothes put into the inner tub 4.

Based on the detected amount of clothes, the control means 25 controls by changing the water level, the washing time, the dehydration time, etc. in the washing process and by changing the time of each process in the drying process.
Then, the controller 23 drives the water supply valve 20 to supply water until the water level detected by the water level detection means 21 reaches a predetermined water level determined for each amount of clothes, and the motor 9 is driven to rotate the inner tub 4. Let At this time, the drain valve 18 and the switching valve 19 are closed.

As a result, the outer peripheral portion of the water in the inner tank 4 rises due to the centrifugal force. Along with this, the water between the inner tank 4 and the outer tank 3 rises along the inner wall of the outer tank 3 and then the inner tank 4
Water is sprinkled from the upper part of the inside of the inner tank 4 and circulates.
As a result, the water containing the detergent passes through the clothes 38 and is washed in the inner tank 4.

Thereafter, the drain valve 18 is opened to drain water, water is supplied again, and the clothes are rinsed in the same manner as in the washing step. In the dehydration step, the inner tub 4 containing the clothes 38 is rotated at high speed. Due to the centrifugal force generated, the clothes 38
Will be pressed against the inner wall of the inner tub 4, and the centrifugal force will separate water from the clothes 38 and dehydrate it.

In the drying process, while the switching valve 19 is open, dry hot air is blown into the inner tank 4 through the upper bellows-shaped hose 14 and the hot air jet hole 16 by the air blow of the drying blower 12 and the heat generation of the heater 13. Sent in.

At this time, the clothes 38 are in a state of rotating together with the inner tub 4 by the rotation of the inner tub 4, or being flipped up by the left and right rotation of the rotary blades 5 and then dropping. The warm air blown into the water removes water from the clothes when passing through the gaps in the movement of the clothes, and flows out from the inner tank 4 to the inside of the outer tank 3 in a damp state, and then the lower bellows-shaped hose 10 To the circulation duct 11 through the switching valve 19. This flow is indicated by an arrow in FIG.

When hot air containing moisture passes through the inner wall of the outer tub 3 and the circulation duct 11, the outer air of the outer tub 3 and the circulation duct 11 is cooled by the inflow of external air by the blower 17 for cooling. The moisture of the moist air is condensed on the inner wall of the moist air, and the moist warm air is dehumidified.
Return to. Moisture that has condensed on the inner wall of the outer tub 3 is removed by the switching valve 19
Through the drainage port 39 along with the moisture that has condensed on the inner wall of the circulation duct 11. Then, after the completion of the drying process, a ventilation process for driving the drying fan 12 and the cooling fan 17 is performed, and then the process ends.

Next, a method of controlling the motor 9 by the control means 25 and the rotation control means 30 in the drying process will be described with reference to FIG.
Will be described with reference to.

FIG. 5 is a flow chart showing the flow of each step in the drying process of the present invention. When the washing process is completed and the drying process is started, first, at step 100, the clothes are sunk in the inner tub by the last dehydration of the washing process. Since it is stuck inside 4, it is peeled off and fully unraveled, and a cloth peeling process is performed in order to increase the contact area of the clothes with the air.

Specifically, the rotary blade 5 is rotated rightward and leftward five times while being turned on for 1 second and turned off for 2 seconds. By doing so, the clothes attached to the inner tub 4 at the time of dehydration are peeled off from the inner tub 4, and the cloth volume of the garment increases to increase the contact area with the air, and the subsequent drying progresses quickly. To be At this time, since it is a drying process, the dry warm air is blown into the inner tank 4 through the upper bellows-shaped hose 14 and the hot air blowout hole 16 by the blowing of the drying blower 12 and the heat generation of the heater 13, and also the cooling blower. 17 is also driving.

Next, step 101 to step 10
Up to 3, the first drying process to the third drying process with different time ratios of the tank rotation mode for drying while rotating the inner tank 4 and the rotary blade rotation mode for drying while rotating the rotary blade 5 are performed. The operation time of each stroke is shown in (Table 1), and the tank rotation time and the rotor blade rotation time are shown in (Table 2).

[0047]

[Table 1]

[0048]

[Table 2]

The time for each process is set by pressing the drying timer setting switch 26e,
It is determined that the supposed clothes are dried, for example, about 2 kg is dried when the set time is 2 hours, and about 3 kg is dried when the set time is 3 hours. When the set time is 1 hour or less, finishing drying is assumed, and the description will be given later.

Further, the first drying process is 60 minutes when the set time is 3 hours, and the rotating blade rotating time is 1 minute with respect to the tank rotating time of 15 minutes. Therefore, the rotating blade rotating time ratio is Is about 6%. The second drying step is 30 minutes, and the time for rotating the blade is 1 minute with respect to the time for rotating the tank for 4 minutes. Therefore, the time ratio of rotating the blade is 20%, and the time for the third drying step is 60 minutes. The time ratio of the rotary blade rotation is 100% in minutes, and the time ratio of the rotary blade rotation is increased as the stroke progresses.

According to the experiments conducted by the inventors, in the case of this type of washer / dryer, drying while rotating the rotary blades 5 is
It was found that the drying time can be shortened as compared with the drying in the state where the inner tank 4 is rotated or is stationary. For that reason, it is conceivable to use a method of drying mainly by rotating the rotary blades from the initial stage of drying, but if this happens, the entanglement of the clothes will become severe,
This may cause wrinkles.

On the other hand, when the drying rate of clothes exceeds 90%,
It was found that even if the rotation of the rotary blades 5 was the main component, the entanglement and wrinkles of the clothes did not easily progress. Therefore, by setting the three drying steps as described above, it is possible to reduce the occurrence of wrinkles caused by the entanglement of the cloth, and to change the clothes vertically and horizontally so that the clothes are uniformly exposed to warm air. As a result, there is no unevenness in drying and efficient drying is possible.

The time ratio of the rotation of the bath in the first drying process is about 94%. According to the experiments conducted by the inventors, the first drying process mainly involves the rotation of the tub, but during the rotation of the tub, the clothes only rotate together with the inner tub 4, and the warm air outlet 16 Warm air is concentrated on the clothes near the top, causing the clothes temperature to rise and causing wrinkles and damage.

Therefore, in this embodiment, it is periodic (16 minutes).
In order to change clothes up and down and right and left for each time, the rotation of the rotary blade is, for example, 1 second on and 2 seconds off. However, if the rotation time of the rotary blades 5 for changing such clothes vertically and horizontally is 10% or more in the first drying process,
I found that wrinkles caused by entanglement of clothes became worse.

Therefore, the rotation time ratio of the rotary blade 5 including strong rotation that allows clothes to be switched up and down, left and right is 10
%, That is, by setting the tank rotation time ratio to 90% or more, it is possible to suppress wrinkles and efficiently dry without unevenness in drying.

Next, the case of finish drying will be described. As described above, finish drying is assumed when the set time is 1 hour or less. In this case, as shown in (Table 1), there is no first drying step and second drying step, 5
Is dried only in the third drying step in which the rotation is performed. In the case of finish drying, since the initial drying rate of the clothes to be dried is usually 90% or more, even if the clothes are dried only in the third drying step in the rotary blade rotation mode, there is no problem of wrinkles caused by the entanglement of the clothes. The clothes can be changed up and down, left and right, and the clothes can be uniformly blown with warm air, so that the clothes can be dried efficiently without uneven drying.

Next, (Table 3) shows the time limit of the rotary blade rotation in each stroke.

[0058]

[Table 3]

As described above, the rotation time of the rotary blades 5 is 60 seconds in both the first drying process and the second drying process. For example, when the timer setting time is 2 hours, 1 second on and 2 seconds off. A strong rotation makes one reciprocation, and a 0.3 second on, 2.7 second off makes a weak revolution 9 reciprocations.

As described above, even if the tub is mainly rotated, strong rotation must be performed in order to switch clothes vertically and horizontally, and then the clothes in the inner tub 4 become unbalanced. If the inner tank 4 is rotated in that state, the fluctuation will increase and the outer tank 3
An abnormal sound is generated by hitting the housing 1 or the like.

Therefore, even if the clothes become unbalanced due to the strong rotation, the clothes are kept uniform in the inner tub 4 by performing the weak rotation thereafter, and the whirling of the outer tub 3 becomes large during the subsequent tub rotation. It is possible to prevent generation of abnormal sound due to hitting the housing 1 or the like.

Further, from the first drying process to the third drying process, the longer the timer setting time is, the longer the ON time of the rotation time of the rotary blade 5 is, so that the stirring force becomes stronger. This is because the longer the set drying time, the greater the amount of clothes to be dried.
By increasing the stirring time by increasing the on-time, it is possible to switch clothes up, down, left and right even when there is a lot of clothes, and since warm air can be uniformly applied to the clothes, there is no unevenness in drying and efficiency is high. Can be dried.

Then, in step 104, as shown in (Table 1), the blowing process for driving the drying blower 12 and the cooling blower 17 is performed for a predetermined time period, and then, in step 105. Finish the drying with. The time of the blowing stroke is limited to 30 minutes, and the longer the timer setting time is, the longer it is. This is because the more clothes and the longer the drying operation time, the higher the temperature of the clothes and each part of the aircraft. In order to prevent the risk of redness or burns when the user finishes driving and touches a part of the clothes and the body, the clothes and the parts of the body are cooled sufficiently.

As described above, according to the present embodiment, the drying operation is divided into three steps even in the timer drying, and the time ratio of the rotary blade rotation is 6% in the first drying step and 20% in the second drying step. In the third drying process, it is 100%, which is higher with the progress of the process. Therefore, even when the drying operation time is set according to the user's preference, it is possible to reduce the occurrence of wrinkles caused by the cloth entanglement. In addition, clothes can be interchanged vertically and horizontally, and since warm air can be uniformly applied to the clothes, the clothes can be dried efficiently without unevenness in drying.

Further, since the drying operation time set by the input setting means 26 is displayed numerically on the display means 27, the operating time set by the user by the input setting means 26 is confirmed by the numerical display of the display means 27. Therefore, it is possible to eliminate mistakes when setting the driving time, and it is possible to clearly inform the user of the driving time, thereby improving usability.

Further, when the set time of the timer drying is 60 minutes or less, only the third drying process in the rotary blade rotation mode is operated, so that the drying can be performed efficiently without unevenness in drying.

Further, since the respective times from the first drying process to the third drying process are changed according to the set time of the timer drying, the generation of wrinkles caused by the cloth entanglement even if the amount of clothes is different. Can be reduced, and there is no unevenness in drying, and efficient drying can be achieved.

Further, since the ON time of the rotary blade rotation is changed according to the set time of the timer drying, the rotation of the rotary blade can be increased by increasing the set time of the timer drying when the amount of clothes is large. It becomes stronger, and clothes can be switched up, down, left and right to apply warm air evenly, and it is possible to dry efficiently without uneven drying.

In this embodiment, by pressing the drying timer setting switch 26e, it is possible to set up to 3 hours in 30 minute steps, but the operating time and the operating time setting method are not limited to these. Absent.

Further, the drying operation is controlled in three drying steps having different time ratios between the tank rotation mode and the rotary blade rotation mode, but this is not limited to three steps, and the steps may be divided into more steps and finely divided. If it is controlled to, it will be more effective.

The time of each stroke, the time of the tank rotation in each stroke, the time of the rotary blade rotation, the rotation speed of the tank rotation, and the time limit of the rotary blade rotation are examples of the present invention, and these numerical values are shown. It is not limited to.

Further, as a method of changing the rotation intensity of the rotary blade 5, the on time of the motor 9 is changed, but this has the same effect even if the rotation speed of the motor 9 is changed.

Although a DC brushless motor is used as the driving means and inverter control is performed, this may be an induction motor.

[0074]

As described above, according to the first aspect of the present invention, the outer tub elastically suspended in the housing and the central axis of rotation in the vertical direction are provided in the outer tub. An inner tank rotatably supported, a rotary vane rotatably provided on an inner bottom portion of the inner tank, a driving means for driving the inner tank or the rotary vane, and a blowing means for blowing a circulating air into the inner tank. A heating unit that heats the air blown by the blower unit, a cooling blower unit that introduces cooling wind from the outside into the housing, an input setting unit that sets a drying operation time, and an input setting unit. And a control means for controlling the operation of the driving means, the air blowing means, the heating means, the cooling air blowing means, etc. to control the drying operation by inputting the signal of the above, and the control means dries while rotating the inner tank. Tank rotation mode and the time to dry while rotating the rotor Since there are two or more strokes with different time ratios of the blade rotation mode and the strokes with a high time ratio of the rotary blade rotation mode are performed over time, the drying operation and the air blowing operation are performed only for the time set by the user. You can improve the ease of use. Furthermore, since the drying rate of the laundry is low in the first half of the drying, wrinkles caused by cloth entanglement can be reduced by mainly drying the tank, and in the latter half of the drying, the rotary blade rotation is the main drying. By doing so, even if there is a large amount of laundry, the laundry can be swapped vertically and horizontally, and since warm air can be uniformly applied to the laundry, it is possible to dry efficiently without unevenness in drying.

According to the second aspect of the present invention, the display means is provided, and the control means numerically displays the dry operation time set by the input setting means on the display means. It is possible to eliminate mistakes in setting and to clearly inform the user of the operating time, which improves usability.

According to the third aspect of the invention, the control means performs the stroke only in the rotary blade rotation mode when the drying operation time set by the input setting means is less than the predetermined time. When used as finish drying, the laundry can be switched vertically and horizontally, and warm air can be uniformly applied to the laundry so that the laundry can be efficiently dried.

Further, according to the invention described in claim 4, since the control means changes the time of each stroke based on the drying operation time set by the input setting means, the amount of laundry is different. Even when the process is switched, the degree of drying can be made substantially constant, the generation of wrinkles due to the entanglement of the cloth can be reduced, and the drying can be performed efficiently without unevenness in drying.

According to the fifth aspect of the invention, the control means changes the strength of rotation of the rotor blades based on the drying operation time set by the input setting means, so that a large amount of laundry is carried out. Even in this case, it is possible to switch the laundry vertically and horizontally, and since the warm air can be uniformly applied to the laundry, the laundry can be efficiently dried without unevenness in drying.

[Brief description of drawings]

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

FIG. 2 is a circuit diagram of the washer / dryer with a partial block.

FIG. 3 is a timing chart showing a driving method of a motor of the washer / dryer.

FIG. 4 is a front view of an operation display unit of the washing and drying machine.

FIG. 5 is a main part flowchart showing a drying process of the washing and drying machine.

[Explanation of symbols]

1 case 3 outer tank 4 inner tank 5 rotors 9 Motor (drive means) 12 Drying air blower (air blower) 13 Heater (heating means) 17 Cooling blower (cooling blower) 25 Control means 26 Input setting means

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Claims (5)

[Claims] 1. An outer tank elastically suspended in a housing, an inner tank having a central axis of rotation in a vertical direction and rotatably supported in the outer tank, and an inner bottom portion of the inner tank rotatable. A rotary blade provided on the inner tank, a driving means for driving the inner tank or the rotary blade, a blowing means for blowing a circulating air into the inner tank, a heating means for heating the air blown by the blowing means, Cooling air blowing means for introducing cooling air from the outside into the housing, input setting means for setting a drying operation time, and a signal from the input setting means for inputting the driving means, air blowing means, heating means, cooling air blowing Control means for controlling the operation of means and the like to control the drying operation, wherein the control means is a tank rotation mode for drying while rotating the inner tank, and a rotary blade rotation mode for drying while rotating the rotary blade. Having two or more strokes with different time ratios, A washer / dryer adapted to perform a process in which the time ratio of the rotary blade rotation mode is high with the passage of time. 2. The washer / dryer according to claim 1, further comprising display means, wherein the control means numerically displays the drying operation time set by the input setting means on the display means. 3. The washing / drying machine according to claim 1, wherein the control means performs the stroke only in the rotary blade rotation mode when the drying operation time set by the input setting means is a predetermined time or less. 4. The washing / drying machine according to claim 1, wherein the control means changes the time of each stroke based on the drying operation time set by the input setting means. 5. The washer / dryer according to claim 1, wherein the control means changes the strength of rotation of the rotary blades based on the drying operation time set by the input setting means.