JP2004121321A - Washing machine with drying function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve the execution of a stable drying operation free from the influence of outside air temperatures. <P>SOLUTION: When the execution of the drying operations is supported, a controller stops a heater by reading the temperature detected by a thermistor to detect the outside air temperature while an air fan is driven (S1 and S2). When the outside air temperature is within the range of 10-30°C, the normal operation is executed, at a high temperature (30°C or higher) the high-temperature operation is executed, and at a low temperature (10°C or lower) the low temperature operation is executed (S3-S8). In short, the drying operation is executed by altering the rotation time of an agitator and the rotation time of the drum according to the outside air temperature. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a washing machine with a drying function for drying laundry by supplying warm air into a rotating tub and stirring the laundry in the rotating tub.
[0002]
[Prior art]
In a conventional washing machine, a hot tub is supplied to a rotating tub that also serves as a washing tub and a dehydrating tub, or a rotating tub and a stirrer provided in the rotating tub are alternately rotated to rotate the inside of the rotating tub. (See, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-11-216293
[Problems to be solved by the invention]
In the above-mentioned conventional washing machine, the driving mechanism of the hot air supply device, the rotating tub and the stirring body is controlled to be constant without considering the outside air temperature. However, when the outside air temperature is low, the temperature of the hot air supplied into the rotary tank is hardly increased, and the drying efficiency is reduced. Furthermore, since the temperature difference between the inside and outside of the washing machine main body is large, dew condensation is likely to occur around the hot air outlet inside and outside the washing machine main body. Such dew condensation inside and outside the main body of the washing machine may cause malfunctions of the drive mechanism and the electronic components.
[0005]
Further, when the outside air temperature is high, the drying efficiency is improved because the temperature of the hot air supplied into the rotating tub tends to increase, but the internal temperature of the washing machine body also increases, so that the temperature of the rotating tub and the stirring body is increased. There has been a problem that the driving mechanism (motor) and the electronic components inside the machine are excessively heated to deteriorate the performance.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a washing machine with a drying function capable of performing a stable drying operation regardless of the outside air temperature and preventing a reduction in product life. It is.
[0007]
[Means for Solving the Problems]
The washing machine with a drying function according to claim 1 of the present invention is a rotating tub for storing laundry, a hot air supply device for supplying warm air into the rotating tub, and a stirring means for stirring the laundry in the rotating tub. A drying operation execution unit for drying the laundry, and a temperature detection unit for detecting an outside air temperature, wherein the drying operation execution unit executes a drying operation based on a detection result of the temperature detection unit. It has a feature in the configuration.
[0008]
According to the above configuration, since the drying operation is performed in accordance with the outside air temperature, it is possible to prevent the temperature inside the device from excessively rising and to prevent dew condensation inside and outside the device as much as possible.
[0009]
The washing machine with a drying function according to claim 2 of the present invention, wherein the hot air supply device is a heating device capable of controlling the turning on and off, a blower for blowing air heated by the heating device toward a rotary tub, and the heating device. In addition to comprising a device and an air passage for accommodating the blower, the temperature detecting means is configured to detect the temperature of the air flowing through the rotary tank side from the heating device in the air passage. Having.
[0010]
At the time of power failure of the heating device, the air flowing through the air passage is not heated and is substantially equal to the outside air temperature. On the other hand, when the heating device is energized, the air that flows on the rotary tank side of the heating device in the ventilation path is heated by the heating device to become hot air. Therefore, the temperature detection means can detect the outside air temperature and the temperature of the hot air by controlling the power supply to the heating device.
[0011]
The washing machine with a drying function according to claim 3 of the present invention accommodates the warm air supply device, a heating device, a blower that blows air heated by the heating device toward a rotating tub, the heating device, and the blower. The drying operation executing means is configured to control the driving of at least one of the heating device and the blower based on the detection result of the temperature detecting means.
[0012]
According to the above configuration, it is possible to supply an appropriate amount of air or an appropriate temperature of hot air according to the outside air temperature into the rotary tank.
[0013]
A washing machine with a drying function according to a fourth aspect of the present invention is configured such that the stirring means includes a stirrer rotatably arranged in a rotary tub, and a drive mechanism for rotating the rotary tub and the stirrer. The drying operation executing means is configured to control the driving of the driving mechanism based on the detection result of the temperature detecting means.
[0014]
According to the experiment of the inventor, if the rotation time of the rotating tub during the drying operation is increased, the drying efficiency is reduced because the laundry is not so loosely removed, but the occurrence of dew condensation inside and outside the machine can be prevented or suppressed. Was. In addition, when the rotation time of the stirrer is reduced, the drying efficiency is reduced, but the temperature rise of the driving mechanism can be suppressed. Therefore, by appropriately controlling the drive mechanism in accordance with the outside air temperature, it is possible to prevent the drive mechanism and the electronic components in the machine from causing malfunctions such as operation failure and performance degradation.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows an overall configuration of a washing machine with a drying function according to the present embodiment. A washing machine main body 1 includes a rectangular box-shaped outer box 2 and a hollow top provided on the upper part of the outer box 2. And a cover 3. The outer box 2 has an opening 2a at the bottom. The top cover 3 has a laundry entrance 4 formed in the center thereof, and has a lid 5 for opening and closing the laundry entrance 4.
[0016]
A cylindrical water tank 6 is provided in the outer box 2 via an elastic support mechanism 7. A water tank cover 9 having an inner lid 8 is provided at an upper surface opening of the water tank 6. The inner lid 8 is provided with, for example, a ventilation hole 10 composed of a plurality of slits, and a filter 11 is mounted on the upper surface of the ventilation hole 10. Although not shown, a drain port is provided at the bottom of the water tank 6. A drain hose (not shown) is connected to the drain port via a drain valve 12 (see FIG. 3).
[0017]
A cylindrical rotary tank 13 is provided in the water tank 6 so as to be rotatable on the vertical axis. An annular balancer 14 is provided at the upper end of the rotary tub 13, and a plurality of filter bases 15 extending downward along the inner surface of the rotary tub 13 are attached to the lower surface of the balancer 14. The filter base 15 is provided with a filter (not shown) for capturing lint and the like in the washing water.
[0018]
A stirring body 16 is rotatably provided at the bottom of the rotating tank 13. A large number of holes 13a functioning as water holes and air holes are provided in the peripheral wall of the rotary tank 13. In addition, a driving mechanism 17 that rotates the rotating tank 13 and the stirring body 16 is provided below the water tank 6. The drive mechanism 17 includes an outer rotor type motor and a clutch for selectively transmitting the rotation of the motor to the rotary tub 13 and the stirring body 16. In the present embodiment, the rotating tank 13, the stirring body 16, the driving mechanism 17, and the clutch constitute a stirring means.
[0019]
FIG. 2 is a perspective view of the top cover 3 with the lid 5 removed and partially cut away. As shown in FIGS. 1 and 2, a rear portion of the top cover 3 protrudes slightly rearward, and a hot air supply device 18 and a water supply device (not shown) are arranged side by side inside the rear portion. I have.
[0020]
The hot air supply device 18 includes a blower 19 and a heating device 20. The blower 19 includes a casing 22 having an intake port 21 on a rear surface, a blower fan 23 accommodated in the casing 22, and a fan motor 24 fixed to an outer surface of a front part of the casing 22 and rotationally driving the fan 23. It is configured. An opening 25 is formed in the left rear surface of the top cover 3, and the opening 25 communicates with the intake port 21. At the rear end of the top cover 3, an intake port cover 27 that covers the opening 25 and forms an air flow path 26 with the top cover 3 is mounted. An external suction port 28 is formed in a portion of the bottom surface of the top cover 3 located below the air flow path 26.
[0021]
The heating device 20 is disposed in front of the blower 19 and includes a case 29 communicating with the casing 22 and a PTC heater 30 (corresponding to a heating element) disposed in the case 29. . The PTC heater 30 includes a plurality of semiconductor elements. A hot air outlet 31 is provided at the rear of the water tank cover 9, and a bellows-shaped air duct 32 is connected between the hot air outlet 31 and the case 29.
[0022]
Note that a thermistor 33 as a temperature detecting means is disposed outside the case 29. The thermistor 33 is configured to detect the temperature of air flowing through the air duct 32. In this embodiment, the air passage 26, the casing 22, the case 29, and the air duct 32 function as an air passage.
[0023]
The water supply device is provided with a water supply valve 34 (see FIG. 3) for controlling water supply to the water tank 6 (rotary tank 13). The inlet 35 of the water supply device projects above the top cover 3 so that a hose connected to a water tap is connected.
[0024]
An operation panel 36 is provided on a front upper surface of the top cover 3. Further, a control device 37 is disposed below the operation panel 36 in the outer box 2. The operation panel 36 is provided with various operation switches 39 such as a power switch 38, a start switch also serving as a temporary stop switch, and a setting switch for setting various operation courses and operation times. Further, the operation panel 36 has a display 40 for displaying the setting contents, the presence / absence of the setting, the operation state, and the like.
[0025]
FIG. 3 is a diagram illustrating a schematic electrical configuration of the washing machine according to the present embodiment. The control device 37, which is a control means, is composed of a circuit mainly composed of a microcomputer, for example, and stores a control program for controlling the entire washing and drying operation. Operation signals from various operation switches 39, detection signals from a water level sensor 41, a lid switch 42, and the thermistor 33 are input to the control device 37. The water level sensor 41 outputs a signal corresponding to the water level in the water tank 6. The lid switch 42 outputs a signal corresponding to the opening / closing operation of the lid 5.
[0026]
Further, a display 40 is connected to the control device 37, and a buzzer 44, a water supply valve 34, a drain valve 12, a drive mechanism 17, a PTC heater 30, and a blower 19 are connected via a drive circuit 43. . In the present embodiment, the control device 37 constitutes a drying operation executing means.
[0027]
Next, the operation of the above configuration will be described. First, a schematic operation of the washing machine will be described. When an operation signal is input from the operation switch, the control device 37 executes the washing operation and the drying operation based on a control program stored in advance. When the execution of the washing operation is instructed, the control device 37 sequentially executes the washing step, the rinsing step, and the dewatering step.
[0028]
In the washing step and the rinsing step, the control device 37 controls the water supply device to supply water to the predetermined level in the water tank 6 (the rotary tank 13), and then controls the drive mechanism 17 to alternately rotate the stirring body 16 in the forward and reverse directions. Rotate to. Thereby, the water in the rotating tub 13 is stirred with the laundry D.
[0029]
In the dehydration process, the control device 37 opens the drain valve 12 to drain the water in the water tank 6, and then controls the drive mechanism 17 to rotate the rotary tank 13 in one direction at high speed. Thus, the water contained in the laundry D is discharged into the water tub 6 from the hole 13a by centrifugal force and discharged from the drain port.
[0030]
The user operates the operation switch 39 to set a washing course, and the control device 37 executes a washing operation according to the set course. The execution time and the number of executions of each step are set in advance for each washing course. Further, the user can operate each operation independently by operating the operation switch 39, and can set and change the execution time, the execution frequency, the water level, and the like of each operation.
[0031]
On the other hand, when the execution of the drying operation is instructed, the control device 37 alternately performs the operation of controlling the driving of the driving mechanism 17 to rotate the stirring body 16 in the forward and reverse directions and the operation of rotating the rotating tank 13 in one direction. The hot air is supplied into the rotary tank 13 by controlling the hot air supply device 18. In this embodiment, the user sets the drying operation time by operating the operation switch 39 and instructs the start of the drying operation, and the control device 37 executes the drying operation for the set operation time. It is supposed to.
[0032]
In addition, the control device 37 performs a drying operation according to the outside air temperature. The drying operation performed by the control device 37 will be specifically described with reference to FIG. In FIG. 4, when the start of the washing operation is instructed, the control device 37 drives the fan motor 24 to rotate the blower fan 23 (step S1). As a result, the air outside the machine enters the air passage 26 from the external suction port 28 as shown by an arrow EA in FIG. Thereafter, the air flowing into the casing 22 from the opening 25 and the air inlet 21 flows into the water tank 6 and the rotary tank 13 through the case 29 and the air duct 32. At this time, since the heating device 20 (PTC heater 30) is not energized, the temperature of the air passing through the air duct 32 is substantially equal to the outside air temperature.
[0033]
Subsequently, the control device 37 reads the detected temperature Ts of the thermistor 33 (Step S2), and determines whether the detected temperature Ts is equal to or lower than 10 ° C. (Step S3). If the detected temperature Ts is higher than 10 ° C. (NO), it is further determined whether the detected temperature Ts is 30 ° C. or higher (step S4).
[0034]
If the detected temperature Ts is lower than 30 ° C. (NO), the control device 37 determines that the outside air temperature is in the normal range from 10 ° C. to 30 ° C., and executes the normal operation (step S5). . In the normal operation, the stirrer 16 and the rotating tub 13 are alternately operated for times An and Bn, respectively.
[0035]
On the other hand, if detected temperature Ts is equal to or lower than 10 ° C. (YES in step S3), control device 37 determines that the outside air temperature is low, and executes the low-temperature operation. In the low-temperature operation, the stirrer 16 and the rotary tank 13 are alternately operated for time Al and Bl, respectively.
[0036]
On the other hand, if detected temperature Ts is equal to or higher than 30 ° C. (YES in step S4), control device 37 determines that the outside air temperature is high, and performs high-temperature operation (step S7). In the high-temperature operation, the stirrer 16 and the rotary tub 13 are alternately operated for times Ah and Bh, respectively. At this time, the operation times Al, Ah, An of the stirring body 16 and the operation times B1, Bh, Bn of the rotary tank 13 are set so as to have a relationship of Al <Ah <An and Bl>Bh> Bn, respectively. I have.
[0037]
Subsequently, the control device 37 drives the PTC heater 30 (Step S8). Thereby, the air passing through the inside of the casing 22 of the heating device 20 is heated, and hot air is supplied into the rotary tank 13. In particular, in the present embodiment, the PTC heater 30 having the self-temperature control function is employed as the heat source of the heating device 20, so that the hot air at the set temperature is supplied into the rotary tank 13.
[0038]
The warm air supplied into the rotating tub 13 contacts the laundry D and dries the laundry D. At this time, the laundry D in the rotating tub 13 is released by the rotation of the stirring body 16 and the rotating tub 13, and the contact surface with the hot air is switched. The hot air containing moisture in contact with the laundry D is discharged to the outside of the water tub 6 through the ventilation hole 10 and the filter 11 as shown by an arrow F in FIG. After going downward with the box 2, it is discharged from the opening 2 a to the outside of the outer box 2. In addition, the lint contained in the warm air after coming into contact with the laundry D is removed by the filter 11 when being discharged to the outside of the water tub 6.
[0039]
The drying operation is performed for a preset operation time. Then, when the operation time elapses, the control device 37 turns off the heater 30 and the blower fan 23 and controls the drive mechanism 17 to stop the operations of the rotary tub 13 and the agitator 16, thereby terminating the drying operation (step S9, S10).
[0040]
According to the present embodiment, the controller 37 reads the temperature detected by the thermistor at the start of the drying operation, and sets the outside air temperature to the normal temperature (10 to 30 ° C.), the high temperature (30 ° C. or more), and the low temperature (10 ° C. or less). ) Is determined, and the drying operation is executed based on the result of the determination. Then, when the outside air temperature was high, the rotation operation time of the stirring body 16 was made shorter than usual, and the rotation operation time of the rotary tank 13 was made longer than usual. This is because the load applied to the motor (drive mechanism 17) is greater when the agitator 16 is rotating than when the rotating tank 13 is rotating. Thereby, the ratio of the rotation operation of the stirrer 16 in the unraveling operation of the laundry D is reduced, and the temperature rise of the motor can be suppressed, so that the temperature inside the washing machine main body 1 can be prevented from excessively rising. .
[0041]
Further, when the outside air temperature was low, the rotation operation time of the stirring body 16 was made shorter than at the time of high temperature, and the rotation operation time of the rotary tank 13 was made longer than at the time of high temperature. The laundry is more efficiently disassembled when the stirring body 16 is rotated than when the rotating tub 13 is rotated. However, when the temperature is low, the temperature difference between the inside and outside of the washing machine main body 1 is large, so that dew condensation easily occurs on the inner surface of the outer box 2 and the periphery of the opening 2a from which the warm air blows from the outer box 2. According to the above configuration, since the contact surface of the laundry D with the hot air is not frequently replaced, the drying efficiency is slightly reduced and the laundry D is dried slowly. Therefore, it is possible to prevent the hot air containing a large amount of moisture from being discharged at once, and to suppress the amount of dew condensation.
[0042]
Further, in this embodiment, the thermistor 33 is configured to detect the temperature of the air passing through the air duct 32. Therefore, when the heater 30 is stopped and the blower fan 23 is driven, the thermistor 33 detects the outside air temperature, and when the heater 30 and the blower fan 23 are driven, the thermistor 33 detects the temperature of the warm air. In other words, one thermistor 33 can be used as both an outside air temperature detection unit and a hot air temperature detection unit.
[0043]
In this embodiment, the operation time of the rotary tank 13 and the agitator 16 is changed in accordance with the outside air temperature, and the amount of heat generated by the heater 30 and the amount of air blown by the blower fan 23 are not changed. Therefore, even if the drying efficiency is slightly reduced by changing the operation time of the rotating tub 13 and the stirring body 16, the laundry can be sufficiently dried.
[0044]
FIG. 5 shows a second embodiment of the present invention, and the points different from the first embodiment will be described. In the present embodiment, the control device 37 is configured to change the drive of the heater 30 and the blower fan 23 according to the outside air temperature. FIG. 5 is a flowchart of a drying operation performed by the control device 37 of the washing machine according to the present embodiment, and the same steps as those in FIG. 4 are denoted by the same step numbers.
[0045]
As shown in FIG. 5, in normal operation (10 ° C. <Ts <30 ° C.), the fan motor 24 is driven such that the rotation speed of the blower fan 23 becomes Fn, and the heater 30 is driven by the input Hn ( Step S11). In the low-temperature operation (Ts ≦ 10 ° C.), the fan motor 24 is driven so that the rotation speed of the blower fan 23 becomes Fl, and the heater 30 is driven by the input Hl (step S12). In the high temperature operation (Ts ≧ 30 ° C.), the fan motor 24 is driven so that the rotation speed of the blower fan 23 becomes Fh, and the heater 30 is driven by the input Hh (step S13).
[0046]
At this time, the rotation speeds Fl, Fh, Fn of the blower fan 23 and the inputs Hl, Hh, Hn of the heater 30 are set so as to have a relationship of Fl>Fn> Fh and Hl>Hn> Hh, respectively. Further, the inputs Hl, Hh, Hn of the heater 30 in each temperature range are set so that the temperature of the hot air blown into the rotary tank 13 from the blower duct 32 becomes substantially constant. In addition, the input switching of the heater 30 may be performed by ON-OFF control of the heater 30 or may be performed by changing the number of semiconductor elements to be energized.
[0047]
In any of the normal operation, the low-temperature operation, and the high-temperature operation, the control device 37 alternately drives the agitating body 16 and the rotary tank 13 by the times An and Bn, respectively. Thereby, the laundry D in the rotating tub 13 is agitated and dried by the warm air supplied into the rotating tub 13.
[0048]
In particular, in this embodiment, in the low-temperature operation, the rotation speed of the blower fan 23 is increased from the normal operation, the supply amount of the hot air to the rotary tank 13 is increased, and the input of the heater 30 is set higher than the normal operation. . Therefore, even if the outside air temperature is low, the drying performance does not decrease.
[0049]
Further, since the laundry is easier to dry in the high-temperature operation than in the normal operation, the number of rotations of the blower fan 23 is reduced from the normal operation to reduce the amount of hot air supplied to the rotary tub 13 and to input the heater 30. Was lower than usual. Thus, power is not wasted. In addition, the temperature inside the washing machine main body 1 can be prevented from excessively rising, and the life of the product can be improved.
[0050]
The above-described washing operation according to the outside air temperature is performed until the temperature of the hot air passing through the air duct 32 reaches 70 ° C. That is, in step S14, the control device 37 reads the detected temperature Ts1 of the thermistor 33 and detects the temperature of the hot air passing through the air duct 32. Then, when the detected temperature Ts1 reaches 70 ° C. (NO in step S15), the heater 30 is turned off (step S16). As a result, the temperature of the hot air passing through the air duct 32 decreases.
[0051]
Then, in step S17, the detected temperature Ts2 of the thermistor 33 is read again, and when the detected temperature Ts2 is equal to or lower than 65 ° C. (YES in step S18), the heater 30 is turned on (step S19). At this time, the input of the heater 30 is set so that the temperature of the hot air supplied to the rotary tank 13 is about 65 ° C.
[0052]
Thereafter, when the operation time elapses, the control device 37 turns off the heater 30 and the blower fan 23 and controls the drive mechanism 17 to stop the operations of the rotary tub 13 and the agitating body 16 and terminate the drying operation ( Steps S9 and S10).
[0053]
If it is determined in step S18 that the detected temperature Ts2 is not lower than 60 ° C., the control device 37 displays on the display 40 that an error has occurred (step S20).
[0054]
According to this embodiment, stable drying performance can be obtained regardless of the outside air temperature. In addition, since the temperature inside the washing machine main body 1 is prevented from excessively rising, it is possible to prevent the occurrence of operation failure of electronic components such as the drive mechanism 17 and the control device 37.
[0055]
Note that the present invention is not limited to the embodiment described above and illustrated in the drawings. For example, the following modifications and extensions are possible.
The present invention is also applicable to a drum type washing machine having a drying function.
[0056]
The execution time of the entire drying operation may be shortened or extended according to the outside air temperature. For example, in a configuration in which the operation time of the stirring means is changed according to the outside air temperature, when the outside air temperature is low and the rotation operation time of the rotary tub is longer than usual and the drying is performed slowly, the drying time may be extended accordingly. .
[0057]
Any one or all of the heater input, the number of rotations of the blower fan, and the operation time of the rotating tank and the stirrer may be changed according to the outside air temperature.
[0058]
【The invention's effect】
As is clear from the above description, the washing machine with a drying function of the present invention is configured to execute an appropriate drying operation in accordance with the outside air temperature, so that the inside of the machine excessively rises in temperature or condensation occurs inside and outside the machine. As a result, stable drying operation can be performed irrespective of the outside air temperature, and a reduction in product life can be prevented.
[Brief description of the drawings]
FIG. 1 is a view showing an entire configuration of a washing machine with a drying function according to a first embodiment of the present invention. FIG. 2 is a perspective view of a top plate with a part cut away and a lid removed. FIG. FIG. 4 is a flowchart showing an operation content of a drying operation. FIG. 5 is a diagram corresponding to FIG. 4 showing a second embodiment of the present invention.
In the figure, 1 is a washing machine main body, 2 is an outer box, 13 is a rotating tub (stirring means), 16 is a stirrer (stirring means), 17 is a drive mechanism (stirring means), 18 is a hot air supply device, and 19 is A blower, 20 is a heating device, 22 is a casing (blowing path), 26 is an air flow path (blowing path), 32 is a blowing duct (blowing path), 33 is a thermistor (temperature detecting means), and 37 is a control device (drying operation). Execution means).

Claims (4)

A rotating tub for storing laundry,
A washing machine with a drying function, comprising: a hot-air supply device that supplies warm air into the rotating tub; and a drying operation executing unit that includes a stirring unit that stirs the laundry in the rotating tub and that dries the laundry. ,
A temperature detecting means for detecting an outside air temperature,
The washing machine with a drying function, wherein the drying operation executing means executes a drying operation based on a detection result of the temperature detecting means. The hot air supply device is configured of a heating device capable of turning on and off the electric power, a blower that blows air heated by the heating device toward the rotary tank, and an air passage that houses the heating device and the blower,
2. The washing machine with a drying function according to claim 1, wherein the temperature detection unit is configured to detect a temperature of air flowing through the rotary tub rather than the heating device in the ventilation path. 3. The hot air supply device includes a heating device, a blower that blows air heated by the heating device toward the rotating tank, and a blowing path that houses the heating device and the blower,
2. The washing machine with a drying function according to claim 1, wherein the drying operation execution unit controls the driving of at least one of the heating device and the blower based on a detection result of the temperature detection unit. The stirrer is constituted by a stirrer rotatably arranged in the rotary tank, and a drive mechanism for driving the rotary tank and the stirrer to rotate.
2. The washing machine with a drying function according to claim 1, wherein the drying operation executing means controls the driving of the driving mechanism based on a detection result of the temperature detecting means.

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