JP2003093780A - Washing-and-drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent overdrying of clothes in a drying process for improving finish of the dried clothes in a washing and drying machine having a process for suppling hot air into an inner tub for drying laundry and capable of performing a series of processes from washing to drying sequentially. SOLUTION: An inner tub 32 having the rotation center axis in the vertical direction substantially and storing the laundry is supported freely rotationally, and hot air heated by a heater 38 is fed into the inner tub 32 by means of a hot air blower 37. A series of processes of washing, rinsing, spin-drying, and drying are controlled sequentially by means of a control part 57. The control part 57 controlling an air cooling means cooling a heat exchanger 51 by means of a cooling air blower 39 and a water cooling means 50 cooling the heat exchanger 51 by a cooling water is provided with a first process for driving the air cooling means and a second process for simultaneously driving both of the air cooling means and the water cooling means. The control part 57 can optionally set an operation time of the drying process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washer / dryer having a process of blowing warm air into an inner tub to dry laundry, and capable of consistently performing from washing to drying.

[0002]

2. Description of the Related Art As a new washing and drying machine, the inventors have
A washing and drying machine having the configuration shown in FIG. 5 is proposed. The configuration will be described below.

As shown in FIG. 5, a casing 1 has an outer tank 2 supported by a suspension mechanism 3 for suspension vibration isolation. A motor 4 is provided below the outer tub 2, and is rotated via a hollow biaxial structure washing / dewatering shaft 5 and a clutch 6 for switching the transmission of rotational force to the washing / dewatering shaft 5 by washing or dehydration. It is connected to an inner tank 7 which has a central axis in a substantially vertical direction and is rotatably provided inside the outer tank 2.

A fluid balancer 8 is provided above the inner tank 7,
A rotary blade 9 is rotatably provided on the inner bottom of the inner tank 7. The drain valve 10 drains the water in the outer tub 2. The warm air blower 11 blows warm air into the inner tank 7 for drying, and is provided substantially above the housing 1. The heater 12 is
The air blown by the warm air blower 11 is heated. The cooling blower 13 is provided on the side wall of the housing 1 and is externally connected to the housing 1
Cold air is introduced inside.

The upper surface of the outer tub 2 is covered with an outer tub cover 14, and an openable / closable inner lid 15 is provided at a substantially central portion of the outer tub cover 14. The discharge port 16 is provided in the outer tank cover 14 and discharges the warm air blown by the warm air blower 11. The discharge port 16 and the end of the warm air circulation path 17a connected to the heater 12 are connected by a stretchable upper bellows hose 18.
A warm air outlet 19 is provided in the lower part of the outer tub 2, and this warm air outlet 19
The warm air circulation path 17 and the hot air circulation path 17 are connected via a switching valve 20 by a lower bellows hose 21 which is expandable and contractible. Reference numeral 22 is a drain port for draining dehumidified water. The inner tub 7 contains the put-in clothes 23.

Circulating air from the warm air blower 11 is generated by the heater 1.
2 through upper bellows hose 18, discharge port 16, inside of inner tank 7, small holes (not shown) around inner tank 7, small holes of rotor blades 9 (not shown), lower part of outer tank 2, outer tank It passes through the lower bellows hose 21, the switching valve 20, and the warm air circulation path 17 provided in the lower part of 2, and circulates again in the passage circulating to the warm air blower 11. The temperature sensor 24 is provided in the warm air circulation path 17 to detect the temperature of the circulating air. The temperature sensor 25 is provided on the wall surface of the outer tub 2, and the temperature sensor 24 and the temperature sensor 25 are provided.
Detect the dryness from the output of.

The operation of the above configuration will be described. Washing·
In the rinse step, with the drain valve 10 and the switching valve 22 closed, the clothes 23 and the detergent are put into the inner tub 7, water or hot water is supplied, and the clutch 6 of the transmission mechanism is set to the washing side. The power of the motor 4 is transmitted to the rotary blades 9 via the washing / dewatering shaft 5, and the rotary blades 9 rotate, whereby the clothes 23 are stirred and washed in water and rinsed.

In the dehydration process, after the washing process or the rinsing process is completed and the water in the inner tub 7 is drained by opening the drain valve 10, the clutch 6 of the transmission mechanism is switched to the dehydration side to drive the power of the motor 4. Is transmitted to the inner tub 7 through the washing / dehydrating shaft 5 and rotated, and centrifugal force is applied to the clothes 23, whereby water is separated from the clothes 23, passes through the drain valve 10, and is discharged to the outside.

In the drying process, first, the switching valve 20 is opened, and the rotary blades 9 are slowly rotated in the forward and reverse directions.
Clothing 2 attached to the inner wall of the inner tank 7 by centrifugal force during dehydration
After peeling off 3, the rotor blades 9 are momentarily and strongly rotated in the forward and reverse directions to stir the clothes 23 upward in the inner tub 7 or agitate the inner tub 7. Or

At the same time, the heater 1 is heated by the warm air blower 11.
The warm air heated by passing 2 through the upper bellows hose 18,
It is sent into the inner tank 7 through the discharge port 16. This warm air warms the clothes 23 in the inner tub 7 to remove the water, and the outer tub 2, the lower bellows hose 21, and the hot air circulation path 1
When passing through 7, since it is cooled by external blown air by the cooling blower 13, moisture is condensed and dehumidified,
It is drained from the drain port 22, and the drying proceeds without damaging the room. After that, the circulating air returns to the warm air blower 11 again,
This process is repeated.

When the clothes get dry, the output difference between the temperature sensor 24 and the temperature sensor 25 becomes large.
Finish the drying.

[0012]

In such a conventional configuration, due to the limit of the dryness detection accuracy of the temperature sensor 24 and the temperature sensor 25, depending on the quantity and quality of the clothes, the clothes may be undried or overdried. However, there is a problem in that the finish is poor depending on the quality of the clothes, especially when the clothes are overdried.

Further, there is a problem that when the amount of dampness of the clothes is small in the latter half of the drying process, the temperature of the clothes rises too much and the finished clothes after drying become poor.

The present invention solves the above-mentioned conventional problems by preventing overdrying of clothes in the drying process and preventing the temperature of the clothes from rising too much in the latter half of the drying process when the amount of dampness of the clothes is small. The purpose is to improve the finish of clothes after drying.

[0015]

In order to achieve the above-mentioned object, the present invention has an outer tub elastically suspended inside a housing and a rotation center axis in a substantially vertical direction and rotates in the outer tub. An inner tub for freely supporting the laundry, a rotary blade rotatably provided on the inner bottom of the inner tub, a driving means for driving the inner tub or the rotary wing, and warm air in the inner tub. Warm air blowing means for blowing air, heating means for heating the air blown by the warm air blowing means, water supplying means for supplying water into the inner tank, and air cooling means for cooling the heat exchanger with a cooling blower. A water cooling means for cooling the heat exchanger with cooling water, the driving means,
The hot air blower means, heating means, water supply means, air cooling means and water cooling means and the like are controlled, and a control means for sequentially controlling a series of steps of washing, rinsing, dehydration and drying is provided, and the control is performed in the drying step. A first means for driving the air cooling means
And the second step in which both the air cooling means and the water cooling means are simultaneously driven, and the operating time of the drying step can be arbitrarily set.

As a result, it is possible to prevent overdrying of clothes in the drying process, and to prevent the temperature of the clothes from rising too much in the latter half of the drying process when the amount of dampness of the clothes is small, and to finish the clothes after drying. You can do well.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention has an outer tub elastically suspended inside a housing, and has a rotation center axis in a substantially vertical direction and is rotatable in the outer tub. An inner tub that accommodates the laundry that is supported on the inner tub, a rotary blade that is rotatably provided on the inner bottom portion of the inner tub, a driving unit that drives the inner tub or the rotary wing, and blows warm air into the inner tub. Warm air blowing means, heating means for heating the air blown by the warm air blowing means, water supply means for supplying water into the inner tank, and air cooling means for cooling the heat exchanger with a cooling blower, Water cooling means for cooling the heat exchanger with cooling water, operation of the driving means, warm air blowing means, heating means, water supply means, air cooling means, water cooling means, etc. are controlled, and a series of washing, rinsing, dehydration, and drying is performed. And a control means for sequentially controlling the steps of, and in the drying step, the control means In addition to having a first stroke for driving the air cooling means and a second stroke for simultaneously driving both the air cooling means and the water cooling means, the operating time of the drying stroke can be set arbitrarily. , Can prevent overdrying of clothes, and prevent the temperature of clothes from rising too much in the latter half of the drying process when the amount of dampness is low, and set an appropriate drying time according to the quantity and quality of clothes to be dried. By doing so, the finish of the clothes after drying can be improved.

According to a second aspect of the invention, in the invention according to the first aspect, the control means in the drying step is:
The execution time of the first stroke and the execution time of the second stroke are determined according to the set operation time length, and the amount of clothes,
By adjusting the time of the first step appropriately according to the quality, it is possible to prevent the temperature of the clothes from rising too much in the latter half of the drying process when the amount of dampness of the clothes is low, and to improve the finish of the clothes after drying. can do.

According to a third aspect of the invention, in the invention according to the first or second aspect of the invention, in the drying step, the control means controls the first step and the second step according to the temperature of the temperature sensor.
The control means should shift to the second step earlier than a predetermined time when the clothes have a large amount of synthetic fiber and dry quickly, or when the ambient temperature is high and the drying is fast. This can prevent the temperature of the clothes from rising too much when the clothes are less moist in the latter half of the drying process,
The finished clothes after drying can be improved.

[0020]

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

(Embodiment 1) As shown in FIG.
Supports the outer tank 27 by a plurality of suspension mechanisms 28 for suspension vibration isolation. A motor (drive means) 29 is provided below the outer tub 27, and a hollow washing / dehydrating shaft 30 and a clutch 31 for switching the transmission of rotational force to the washing / dehydrating shaft 30 by washing or dehydration are provided. The inner tank 32 is rotatably provided inside the outer tank 27.

A fluid balancer 33 is provided above the inner tank 32, a rotary blade 34 is rotatably provided on the inner bottom portion of the inner tank 32, and a stirring blade 35 is provided on the upper surface of the rotary blade 34 and from the surface thereof. A large number of small holes 36 penetrating the back surface are provided. The warm air blower (warm air blower means) 37 blows warm air into the inner tank 32 for drying, and the casing 26
Is provided substantially above. The heater (heating means) 38 heats the air blown by the warm air blower 37. The cooling blower 39 is provided on the side wall of the housing 26, and is provided from the outside to the housing 26.
This is to introduce cold air into the inside of.

An outer tank cover 40 is provided on the upper surface of the outer tank 27,
An openable / closable inner lid 41 is provided at a substantially central portion of the outer tank cover 40. A discharge port 42 is provided in the outer tank cover 40 to discharge warm air (circulation air). The outlet 42 and the warm air circulation path 43a following the heater 38 are provided in a substantially opposed positional relationship, and are connected by an expandable and contractible bellows hose 45.

An outlet 46 of warm air, washing water, and dehumidified water is provided in the lower portion of the outer tub 27, and the outlet 46 and the warm air circulation passage 43 are connected via an expandable lower bellows hose 47.
A drain port 49 is provided below the warm air circulation path 43 via a drain valve 48. 50 is a water supply unit including a water supply valve. The water supply unit 50 integrally comprises a water supply valve for washing which supplies water into the inner tub 32 in the washing and rinsing process and a water supply valve for drying which supplies water to the heat exchanger 51 in the drying process, and exchanges heat through the cold water hose 52. Water is supplied to the vessel 51, and water cooling means for cooling the surface of the heat exchanger 51 with the water supply valve 50 and the cold water hose 52 is provided.

The warm air (circulation air) circulated by the warm air blower 37 passes through the heater 38, the bellows hose 45, and the discharge port 4.
2, inside the inner tank 32, small holes 36 provided in the rotary vanes 34, small holes around the inner tank 32 (not shown), lower part of the outer tank 27, lower bellows hose 47 provided at the lower part of the outer tank 27, It recirculates to the warm air blower 37 through the air circulation path 43. At this time, the warm air circulation path 43 is cooled by the cool air introduced from the outside by the cooling blower 39 to dehumidify the circulating high-humidity hot air. The temperature sensor 53 is provided in the warm air circulation path 43,
The temperature of the circulating air is detected. The temperature sensor 54 is provided on the wall surface of the outer tub 27, and the introduced garment 55 is contained in the inner tub 32.

The setting display section 56 is a control section (control means) 57.
The control unit 57 includes a microcomputer, and includes a motor 29, a warm air blower 37, a heater 38,
The cooling blower 39, the drainage valve 48, the water supply unit 50, and the like are controlled to sequentially control the steps of washing, rinsing, dehydration, and drying.

Further, as shown in FIG. 2, the setting display unit 56 has a time setting switch 58 for setting the operating time in the drying process, and the operating time is displayed on the time display unit 59, and the time setting switch 58 is set. The operating time can be set arbitrarily by pressing.

The control unit 57, as shown in FIG.
In the drying step, the first step T1 of cooling the heat exchanger 51 only by the air cooling means by the cooling blower 39, the air cooling means by the cooling blower 39, and the heat exchanger 51 through the cold water hose 52 are supplied. There is a second step T2 in which the heat exchanger 51 is cooled by the water cooling means that cools the surface of the heat exchanger 51 with the portion 50 and the cold water hose 52.

The operation of the above configuration will be described. In the washing / rinsing process, the control unit 57 is operated according to the setting display unit 56.
With the control, the clothes 55 and the detergent are put into the inner tub 32 with the drain valve 48 closed, water or hot water is supplied by the water supply unit 50, and the clutch 31 of the transmission mechanism unit is switched to change the motor 29. Power is transmitted to the inner tub 32 or the rotary blades 34 via the washing / dewatering shaft 30, and the inner tub 32 or the rotary blades 34 are rotated, so that water containing detergent may pass through the clothes 55 or the clothes 54 may be removed. Stir in water containing detergent, wash, and rinse.

In the dehydration process, after the washing / rinsing process is completed,
After the drainage valve 48 is opened by the control unit 57 to drain the water in the inner tub 32 to the outside through the drainage port 49, the clutch 31 of the transmission mechanism unit is switched to the dehydration side, and the power of the motor 29 is washed / dehydrated. The water is separated from the clothes 54 by transmitting to the inner tank 32 via 30 and gradually increasing the rotation to rotate the clothes 54 at a rotation speed of about 750 r / min to give a centrifugal force to the clothes 54, and the drain valve 48, It drains to the outside through the drain port 49.

In the drying process, the controller 57 similarly
First, by closing the drain valve 48 and slowly rotating the rotary blades 34 in forward and reverse directions, the inner tank 3 during the dehydration process is
After the clothes 55 attached to the inner wall of the inner tub 32 are peeled off by the centrifugal force due to the rotation of 2, the inner tub 32 is operated for a set operating time so that the entire clothes 55 is blown with warm air.

At this time, the warm air is discharged from the discharge port 42 and the inner tank 32.
By tracing the surface of the clothes 55 inside, the small holes 36 of the rotary blades 34 and a part thereof pass through the small holes (not shown) provided in the inner wall of the inner tank 32 and flow into the outer tank 27, afterwards,
It moves to the outlet 46 at the bottom of the outer tank 27.

When passing through the inner tank 32, clothes 55
When it hits the surface of the clothes, the water contained in the clothes 55 is taken and flows into the warm air circulation path 43, where it is cooled and dehumidified by the outside air by the cooling blower 39.
The dehumidified water collects in the lower part of the warm air circulation path 43,
When the drain valve 48 is opened, it is drained from the drain port 49 to the outside.

Following this first step T1, water is supplied to the heat exchanger 51 through the air cooling means by the cooling blower 39 and the cold water hose 52, and the water supply unit 50 and the cold water hose 52 serve to cool the heat exchanger 51. The second step T2 of cooling the heat exchanger 51 by the water cooling means for cooling the surface is performed for a set time. In the latter half of the drying process, since the clothes are less moist, the heat exchanger 51 is cooled by both the air cooling means and the water cooling means to enhance the dehumidifying ability. Further, by increasing the cooling capacity, the temperature of the circulating hot air is lowered to finish the drying of the clothes. Further, the blowing process is performed until the temperature of the dried clothes (the temperature detected by the temperature sensor 53) reaches a predetermined temperature.

As described above, according to this embodiment, in the drying process, the first step T1 for cooling the heat exchanger 51 only by the air cooling means by the cooling blower 39, the air cooling means by the cooling blower 39, and the cold water hose. Through 52 heat exchanger 51
The second step T2 of cooling the heat exchanger 51 by the water cooling means for cooling the surface of the heat exchanger 51 by the water supply part 50 and the cold water hose 52 is provided and the operating time of the drying step is arbitrarily set. Since the clothes are less moist in the latter half of the drying process, the heat exchanger 51 is cooled by both the air cooling means and the water cooling means to enhance the dehumidification capacity and shorten the drying time. By increasing the cooling capacity, the temperature of the circulating hot air is lowered to finish drying the clothes, so overdrying can be prevented, and an appropriate drying time should be set according to the quantity and quality of the clothes to be dried. Due to
The finished clothes after drying can be improved.

(Embodiment 2) As shown in (Table 1) in the drying process, the control unit 57 shown in FIG. 1 uses only the air-cooling means by the cooling blower 39 according to the set operation time length. The first step T1 of cooling the heat exchanger 51 by means of, the air-cooling means by the blower 39 for cooling, and the water supply part 50 and the cold water hose 52 for supplying water to the heat exchanger 51 through the cold water hose 52
And the water cooling means for cooling the surface of the heat exchanger 51 determines the execution time of each of the second steps T2 for cooling the heat exchanger 51. The other structure is the same as that of the first embodiment.

[0037]

[Table 1]

The operation of the above configuration will be described. In addition,
The operation from the washing process to the dehydration process and the basic operation of the drying process are the same as the operations of the above-described first embodiment, and therefore description thereof will be omitted.

In the drying process, when the operating time is set to 120 minutes, there is a lot of moisture in the clothes in the first half of the drying process.
The first stroke T1 is performed for 90 minutes, followed by the second stroke T
2 is carried out for 30 minutes, and since the clothes are less moist in the latter half of the drying process, the heat exchanger 51 is cooled by both the air cooling means and the water cooling means to enhance the dehumidifying ability and accelerate the drying time. By increasing the cooling capacity, the temperature of the circulating hot air is lowered to finish the drying of the clothes.

Next, in the drying process, operating time 90
In the setting of minutes, the first step T1 is performed for 70 minutes, and then the second step T2 is performed for 20 minutes because the first half of the drying process has a large amount of dampness. Therefore, the heat exchanger 51 is cooled by both the air cooling means and the water cooling means to enhance the dehumidifying ability and shorten the drying time, and also enhance the cooling ability to lower the temperature of the circulating hot air and to cool the clothes. Finish dry.

As described above, according to this embodiment, in the drying process, the first process T is performed according to the set operation time length.
By determining the execution time of 1 and the second stroke T2, since the clothes are less moist in the latter half of the drying stroke, the heat exchanger 51 is cooled by both the air cooling means and the water cooling means, and dehumidified. By increasing the capacity and speeding up the drying time, and by increasing the cooling capacity, the temperature of the circulating hot air is lowered and the clothes are dried, so overdrying can be prevented,
The finished clothes after drying can be improved.

(Embodiment 3) The controller 57 shown in FIG. 1 performs the first stroke when the temperature sensor 53 reaches a predetermined temperature (for example, 60 ° C.) as shown in FIG. 4 in the drying stroke. I am going to finish and move to the second stroke. The other structure is the same as that of the first or second embodiment.

The operation of the above configuration will be described. Here, since the operation from the washing process to the dehydration process and the basic operation of the drying process are the same as the operations of the above-described first embodiment, description thereof will be omitted.

In the drying process, when the clothes are a lot of synthetic fibers and dries quickly, or when the atmospheric temperature is high and the drying is fast, the control means causes the temperature sensor 53 to have a predetermined temperature (for example, 60).
C.), the clothes are less moist in the latter half of the drying process by shifting to the second process earlier than a predetermined time. Therefore, the heat exchanger 51 can be operated by both the air cooling means and the water cooling means. By cooling and increasing the dehumidifying ability to shorten the drying time and increasing the cooling ability, the temperature of the circulating hot air is lowered to finish the drying of the clothes. The other operations are the same as those in the first embodiment.

As described above, according to this embodiment, when the temperature sensor 53 reaches a predetermined temperature in the drying process, the first process is terminated and the second process is started.
When the clothes have a large amount of chemical fiber and dry quickly, or when the ambient temperature is high and the drying is fast, the control means controls the second time earlier than a predetermined time.
By moving to the step of, since the clothes are less moist, the heat exchanger 51 is cooled by both the air cooling means and the water cooling means to enhance the dehumidifying ability and shorten the drying time, and
By increasing the cooling capacity, the temperature of the circulating warm air is lowered to finish the drying of the clothes, so that it is possible to prevent overdrying and improve the finish of the clothes after drying.

[0046]

As described above, according to the first aspect of the present invention, the outer tub elastically suspended inside the housing and the rotation center axis are provided in a substantially vertical direction. An inner tub for rotatably supporting the laundry therein, a rotary blade rotatably provided on an inner bottom portion of the inner tub, a driving means for driving the inner tub or the rotary wing, and an inner tub A warm air blowing unit that blows warm air, a heating unit that heats the air blown by the warm air blowing unit, a water supplying unit that supplies water into the inner tank, and the heat exchanger that cools the heat exchanger. Air cooling means, water cooling means for cooling the heat exchanger with cooling water, operation of the driving means, hot air blowing means, heating means, water supply means, air cooling means, water cooling means, etc. are controlled, and washing, rinsing, dehydration are performed. ,
And a control means for sequentially controlling a series of drying steps, wherein the control means includes a first step for driving the air cooling means and a second step for simultaneously driving both the air cooling means and the water cooling means. In addition, since the operating time of the drying process can be set arbitrarily, since the clothes are less moist in the latter half of the drying process, the heat exchanger is cooled by both air cooling means and water cooling means to dehumidify. By increasing the capacity and speeding up the drying time, and by increasing the cooling capacity, the temperature of the circulating hot air is lowered to finish the drying of the clothes, so overdrying can be prevented and the finish of the clothes after drying can be improved. can do.

According to the second aspect of the invention, in the drying process, the control means determines the execution time of the first process and the second process in accordance with the set operation time length. Since the time of the first step is set appropriately according to the quantity and quality of the clothes, the clothes are less moist in the latter half of the drying step, so the heat exchanger is used as an air cooling means. By cooling with both water cooling means to increase dehumidification ability and shorten the drying time, and by increasing cooling ability, the temperature of circulating hot air is lowered to finish drying clothes, so overdrying can be prevented. The finished clothes can be improved after drying.

Further, according to the invention of claim 3,
In the drying process, the control means determines the execution time of the first process and the second process according to the temperature of the temperature sensor. If it is early, the control means shifts to the second step earlier than a predetermined time, and the clothes are less moist in the latter half of the drying step. Therefore, the heat exchanger 51 is connected to both the air cooling means and the water cooling means. By cooling with, increasing the dehumidifying capacity and shortening the drying time, and by increasing the cooling capacity,
Since the clothes are dried by lowering the temperature of the circulating warm air, overdrying can be prevented, and the clothes after drying can be finished well.

[Brief description of drawings]

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

FIG. 2 is a partially cutaway front view of the setting display section of the washing and drying machine.

FIG. 3 is an operation time chart of main parts of the washing and drying machine.

FIG. 4 is an operation time chart of the main parts of the washer / dryer according to the third embodiment of the present invention.

FIG. 5 is a sectional view of a conventional washer / dryer.

[Explanation of symbols]

26 housing 27 outer tank 29 Motor (driving means) 32 inner tank 34 rotor 37 Warm air blower (warm air blowing means) 38 heater (heating means) 39 Blower for cooling (air cooling means) 50 Water supply section (water supply means, water cooling means) 51 heat exchanger 57 control unit (control means)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shinji Matsuoka             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Eiji Matsuda             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F term (reference) 3B155 AA16 BB19 CA06 CB07 CB49                       CB52 CB53 CB55 CB57 MA01                       MA05 MA10                 4L019 AA02 EB04

Claims (3)

[Claims] 1. An outer tub elastically suspended inside a housing, an inner tub having a rotation center axis in a substantially vertical direction and accommodating laundry rotatably supported in the outer tub, and the inner tub. Rotating blades provided rotatably on the inner bottom of the tank, driving means for driving the inner tank or the rotating blades, warm air blowing means for blowing warm air into the inner tank, and blowing by the warm air blowing means Heating means for heating the air, water supply means for supplying water into the inner tank, air cooling means for cooling the heat exchanger with a cooling blower, and water cooling means for cooling the heat exchanger with cooling water, The operation of the drive unit, the warm air blowing unit, the heating unit, the water supply unit, the air cooling unit, the water cooling unit, etc. is controlled to wash, rinse, dehydrate,
And a control means for sequentially controlling a series of drying steps, wherein the control means includes a first step for driving the air cooling means and a second step for simultaneously driving both the air cooling means and the water cooling means. In addition to having the above, a washing and drying machine in which the operating time of the drying process can be set arbitrarily. 2. The washing / drying machine according to claim 1, wherein in the drying process, the control means determines the execution time of the first process and the second process in accordance with the set operation time length. 3. The washing / drying machine according to claim 1, wherein in the drying step, the control means determines the execution time of the first step and the second step according to the temperature of the temperature sensor.