JP2001129286A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance hot air passing efficiency to a drying object, to prevent nonuniformity of drying, to improve drying efficiency, and to reduce damage of cloth by shortening drying time in a washing and drying for drying the drying object by sending hot air into an inner basket. SOLUTION: An inner basket housing laundry or a drying object and having an air vent 25a is rotatably housed in an outer tube 23, a rotary blade 26 is arranged in an inner bottom part of the inner basket 25, and the inner basket 25 is rotatably driven by a motor 28. In a drying process, hot air is supplied to the inner basket 25 by a fan motor 31 and a heater 32 so that humid air generated by blowing the hot air upon the drying object is cooled, dehumidified and dried by a cooling air blower 4 for cooling an outside surface of the outer tub. Penetrating plural small holes 43 are arranged in the rotary blade 26, and these small holes 43 are arranged in an upper position of a drain passage port 35 arranged in a lower part of the outer tub 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing and drying machine for blowing warm air into an inner tub to dry an object to be dried.

[0002]

2. Description of the Related Art Conventionally, this type of washing and drying machine has been configured as shown in FIG. Hereinafter, the configuration will be described.

As shown in the figure, a casing 1 supports an outer tub 2 by a suspension 3 in a vibration-proof manner. An outer tank 2 accommodates clothing and an inner tank 4 having a vent hole is rotatably accommodated therein.
A rotating blade 5 for stirring laundry or a drying object is provided at an inner bottom of the inner tub 4, and a fluid balancer 6 is provided at an upper portion of the inner tub 4.

A motor 7 is provided at the bottom of the outer tub 2 so as to drive the inner tub 4 or the rotary blade 5 via a clutch 9 for switching the rotation of a washing / dehydrating shaft 8 having a two-shaft structure during washing or dehydration. Make up.

[0005] The fan motor 10 and the heater 11 are
Heating / blowing means for supplying hot air to the air blower 12 is configured to blow hot air from an ejection port 12 communicating with the fan motor 10 toward an object to be dried in the inner tank 4. One end of the heat exchange duct 13 is connected to a drain passage opening 14 provided in the outer tub 2 via a connection duct 15, and the other end is connected to the fan motor 10 to circulate the moist hot air in the inner tub 4. This is to perform dehumidification.

An on-off valve 16 is fixed to the bottom of the outer tub 2, and the drainage from the heat exchange duct 13 and the connection duct 15 is guided to the drainage duct 17 and the on-off valve 16, and is drained from the drainage hose 18 to the outside of the machine. It is composed. The outer tank cover 19 hermetically covers the upper surface of the outer tank 2, and the outer tank cover 1
9 is provided with an opening / closing lid 20, from which laundry or a drying object is taken in and out. The cooling blower 21 is configured to cool the outer surface of the outer tub 2.

The operation of the above configuration will be described. In the washing process, laundry, water and detergent are put into the inner tub 4, and the mechanism transmission is switched to the washing side by the clutch 9, and the motor 7 is turned on.
Is transmitted to the rotor 5 via the washing shaft, and the washing is performed by the stirring action of the rotor 5 and the like. After the washing is completed, in the dehydration process, the opening / closing valve 16 is opened to drain the water in the inner tub 4, and then the mechanism transmission is switched to the dehydration side by the clutch 9.
The power of the motor 7 is transmitted to the inner tub 4 via the dehydrating shaft to rotate the inner tub 4 and centrifugally separate water from the clothes.

In the drying step, first, the rotating blades 5 are rotated in the normal and reverse directions to peel off the object to be dried stuck to the inner wall of the inner tank 4 by centrifugal force in the dewatering step, and thereafter the rotating blades 5 are rotated appropriately. Meanwhile, warm air is sent to the jet port 12 by the heating / blowing means including the fan motor 10 and the heater 11.

The hot air blown into the inner tank 4 from the jet port 12 evaporates water from the object to be dried, and then flows out of the vent hole of the inner tank 4 between the inner tank 4 and the outer tank 2, and From a drain passage port 14 provided in the lower part of the tank 2, the water is guided and circulated to a circulation path of the connection duct 15, the heat exchange duct 13, the fan motor 10, the heater 11, and the ejection port 12. The high-temperature and high-humidity air obtained by evaporating the moisture from the object to be dried passes through the outer tub 2 and the heat exchange duct 13 and is cooled by the blower of the cooling blower 21 to dehumidify the air. 1
It is heated back to 1 and drying proceeds.

[0010]

However, in such a configuration, the warm air blown into the inner tank 4 from the jet port 12 evaporates moisture from the object to be dried, and then flows through the vent hole of the inner tank 4. It circulates through the connection duct 15, the heat exchange duct 13, the fan motor 10, the heater 11, and the jet port 12 from the drainage passage opening 14 provided at the lower part of the outer tank 2 after exiting between the inner tank 4 and the outer tank 2. Therefore, it is difficult to circulate warm air through the drying object, and in terms of drying performance, unevenness of drying, dry wrinkles, the finish such as drying texture is poor, and the drying time is prolonged, and cloth damage is large. Had the problem of becoming

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by increasing the efficiency of passing warm air to a drying object, preventing uneven drying, improving the drying efficiency, shortening the drying time and reducing damage to the cloth. It is an object.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a rotating wing at an inner bottom portion of an inner tub containing a laundry or an object to be dried and having a ventilation hole, and using the inner tub as an outer tub. It is housed rotatably, the inner tank is driven to rotate by the driving means, and in the drying process, hot air is supplied to the inner tank by the heating / blowing means, and the humid air generated by blowing the hot air to the object to be dried is generated. The cooling means for cooling the outer surface of the outer tank is configured to cool, dehumidify, and dry the rotor, and the rotor has a plurality of small holes penetrating therethrough, the small holes being provided above a drain passage opening provided in a lower part of the outer tank. It is arranged at the position.

As a result, it is possible to increase the efficiency of passing warm air to the object to be dried, prevent uneven drying and improve the drying efficiency, shorten the drying time and reduce damage to the cloth. it can.

[0014]

DETAILED DESCRIPTION OF THE INVENTION The invention according to claim 1 of the present invention is directed to an inner tub having a vent hole for storing laundry or an object to be dried, a rotor provided at an inner bottom portion of the inner tub, An outer tub that rotatably houses the inner tub, a driving unit that rotationally drives the inner tub, a heating / blowing unit that supplies warm air to the inner tub, and a cooling unit that cools the outer surface of the outer tub. In the drying step, the humid air generated by blowing hot air on the drying target is cooled by the cooling means to be dehumidified and dried, and the rotating blade is provided with a plurality of small holes penetrating therethrough. The small holes are arranged above a drainage passage opening provided in the lower part of the outer tub, and the rotating blades can pass hot air through a plurality of small holes. The warm air blown into the tank passes through the drying object,
Since the air is discharged from the outer tub through the drain hole through the small holes of the rotor blades, it is possible to increase the efficiency of passing warm air to the drying object, prevent uneven drying, and improve the drying efficiency. The drying time can be shortened, and the damage to the cloth can be reduced.

According to a second aspect of the present invention, in the first aspect of the invention, the total effective area of the plurality of small holes provided in the rotor is at least larger than the opening area of the drainage passage opening of the outer tank. Since it is possible to efficiently secure the flow rate of warm air passing through the plurality of small holes provided in the rotary blade, it is possible to prevent uneven drying of various thin and thick objects to be dried and to efficiently dry.

According to a third aspect of the present invention, in the first aspect of the present invention, the plurality of small holes provided in the rotary blade are formed on an outer peripheral portion of a plurality of radial pump-up blades provided on the lower surface of the rotary blade. It is formed more inside, and when the rotating blade rotates, the amount of warm air passing through the plurality of small holes provided in the rotating blade can be increased by the centrifugal force of the plurality of radial pump-up blades. In addition, the amount of warm air passing through the drying target can be increased, and drying can be performed efficiently.

The invention described in claim 4 is the above-mentioned claim 1-
In the invention described in 3, the plurality of small holes provided in the rotor are formed substantially in the vertical direction, the upper hole diameter is larger than the lower hole diameter, and the area of the entire small hole on the surface side of the rotor is increased. As a result, it is possible to increase the contact area of the warm air with the object to be dried, and it is possible to dry efficiently. In addition, by setting the size of the lower hole as a foreign matter intrusion prevention dimension, it is possible to prevent foreign matter from entering the back surface side of the rotary wing beforehand. Wastewater in the inner tank can be treated in the shortest time.

[0018]

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

(Embodiment 1) As shown in FIG.
Supports the outer tub 23 with a suspension 24 for suspension and vibration isolation. The outer tub 23 accommodates clothes and rotatably accommodates an inner tub 25 having a vent hole 25a, and a rotating blade 26 for stirring laundry or a drying object is provided at the inner bottom of the inner tub 25. The fluid balancer 27 is provided on the upper part.

A motor (driving means) 28 is provided at the bottom of the outer tank 23.
The inner tub 25 or the rotary blade 26 is driven via a clutch 30 that switches the rotation of a washing / dehydrating shaft 29 having a two-axis structure during washing or dehydration.

The fan motor 31 and the heater 32 are
A heating / blowing means for supplying warm air to the air blower 5 is configured to blow warm air toward an object to be dried in the inner tank 25 from an outlet 33 communicating with the fan motor 31. The heat exchange duct 34 has one end connected to a drain passage port 35 provided in the outer tank 23 via a connection duct 36, and the other end connected to the fan motor 3.
1 and circulates the moist warm air in the inner tank 25 to perform dehumidification.

An open / close valve 37 is fixed to the bottom of the outer tank 23, and the drainage from the heat exchange duct 34 and the connection duct 36 is guided to the drain duct 38 and the open / close valve 37, and is drained from the drain hose 39 to the outside of the machine. It is composed. The outer tub cover 40 covers the upper surface of the outer tub 23 in an airtight manner. The outer tub cover 40 is provided with an opening / closing lid 41, through which laundry or a drying object is taken in and out. The cooling blower (cooling means) 42 is configured to cool the outer surface of the outer tub 23.

The rotary wing 26 has a plurality of small holes 43 penetrating therethrough, and the plurality of small holes 43 are arranged at a position above a drain passage port 35 provided at a lower portion of the outer tub 23. I have. The plurality of small holes 43 are formed inside an outer peripheral portion 44 a of a plurality of radial pump-up blades 44 provided on the lower surface of the rotary blade 26.

The operation of the above configuration will be described. In the washing process, laundry, water and detergent are put into the inner tub 25, the mechanism transmission is switched to the washing side by the clutch 30, and the power of the motor 28 is transmitted to the rotor 26 via the washing shaft. The washing is performed by the stirring action of the washing machine. After the washing is completed, in the dehydration process, the on-off valve 37 is opened to drain the water in the inner tub 25, and then the mechanism transmission is switched to the dehydration side by the clutch 30, and the power of the motor 28 is transferred to the inner tub 25 via the dehydration shaft. To rotate the inner tank 25 and centrifuge water from the clothes.

In the drying step, first, the rotating blades 26 are rotated in the normal and reverse directions to peel off the object to be dried stuck to the inner wall of the inner tank 25 by centrifugal force in the dewatering step, and thereafter, the rotating blades 26 are appropriately rotated. Meanwhile, warm air is blown out by the heating / blowing means including the fan motor 31 and the heater 32.
Send to

The hot air blown into the inner tank 25 from the jet port 33 evaporates water from the object to be dried, and then the connection duct 36 and the heat exchange duct are discharged from a drain passage port 35 provided in the lower part of the outer tank 23. 34, a fan motor 31, a heater 32, and a circulation path of a jet port 33 for circulation. The high-temperature and high-humidity air obtained by evaporating the moisture from the object to be dried passes through the outer tank 23 and the heat exchange duct 34 and is cooled by the blower of the cooling blower 42 to dehumidify the air.
1. Returning to the heater 32, heating is performed, and drying proceeds.

Here, the rotary wing 26 is provided with a plurality of small holes 43 penetrating therethrough, and the small holes 43 are arranged above the drainage passage port 35 provided below the outer tank 23. Therefore, since the rotating blade 26 can pass hot air through the plurality of small holes 43, the warm air blown into the inner tank 25 passes through the inside of the object to be dried during the drying process, and the small hole 43 of the rotating blade 26 is formed. The water is discharged from the outer tank through the drain passage port 35 through the drainage passage.

As a result, it is possible to improve the efficiency of passing hot air to the object to be dried, prevent uneven drying and improve the drying efficiency, shorten the drying time and reduce damage to the cloth. it can. In addition, since the efficiency of passing warm air to the drying target can be increased, the stirring operation rate of the rotary blade 26 can be reduced, and damage to the cloth can be suppressed.

The plurality of small holes 43 are formed in the rotor 2
6, a plurality of radial pump-up blades 44 provided on the lower surface
Is formed inside the outer peripheral portion 44a of the
6, a plurality of radial pump-up blades 44
The plurality of small holes 4 provided in the rotor 26
3 can be increased, the amount of warm air passing through the drying target can be increased, and drying can be performed efficiently.

In this embodiment, the hot air blown into the inner tank 25 is supplied from a drain passage 35 provided in the lower part of the outer tank 23 through a connection duct 36, a heat exchange duct 34, a fan motor 31, and a heater 32. Although the gas is circulated through the circulation path of the jet port 33, the exhaust system may be used.

(Embodiment 2) The total effective area of the plurality of small holes 43 provided in the rotor 26 shown in FIG. 1 is larger than the opening area of the drainage passage port 37 of the outer tub 23. Other configurations are the same as those in the first embodiment.

In the above configuration, the total effective area of the plurality of small holes 43 is made larger than the opening area of the drain passage 37 of the outer tub 23, so that the plurality of small holes 43
Because it can efficiently secure the volume of hot air passing through
It is possible to prevent uneven drying of various thin and thick objects to be dried, and it is possible to dry efficiently.

(Embodiment 3) As shown in FIG.
6a has a plurality of small holes 43a penetrating, these small holes 43a are formed in a substantially vertical direction, and the upper hole diameter X is larger than the lower hole diameter Y. Other configurations are the same as those of the first embodiment.
Or the same as 2.

In the above configuration, by making the upper hole diameter X of the plurality of small holes 43a larger than the lower hole diameter Y, it is possible to secure a large area of the whole small holes 43a on the surface side of the rotary blade 26a, and to dry the object. The contact area of warm air to the air can be increased, and drying can be performed efficiently. In addition, by setting the lower hole diameter Y to the dimension for preventing foreign matter from entering, it is possible to prevent foreign matter from entering the back side of the rotary wing 26a beforehand, and by forming the small holes 43a in a substantially vertical direction, The wastewater in the inner tank at the time can be treated in the shortest time.

[0035]

As described above, according to the first aspect of the present invention, an inner tub having a ventilation hole for accommodating laundry or an object to be dried, and a rotating tub provided at the inner bottom of the inner tub. Wings and
An outer tank that rotatably houses the inner tank, a driving unit that rotationally drives the inner tank, and a heating / supply unit that supplies warm air to the inner tank.
A blower, and a cooler for cooling the outer surface of the outer tub, and in the drying step, humid air generated by blowing hot air on the object to be dried is cooled by the cooler to dehumidify and dry. The rotating blades are provided with a plurality of small holes penetrating therethrough, and the small holes are arranged at a position above a drain passage opening provided at a lower part of the outer tank, so that they are blown into the inner tank in a drying process. The hot air passes through the drying object, passes through the small holes of the rotor blades, and is discharged out of the outer tank through the drainage passage opening.
It is possible to increase the efficiency of passing warm air to the object to be dried, prevent uneven drying, improve the efficiency of drying, shorten the drying time, and reduce damage to the cloth.

According to the second aspect of the present invention, the total effective area of the plurality of small holes provided in the rotor is made larger than at least the opening area of the drainage passage opening of the outer tank. Since the flow rate of warm air passing through the plurality of small holes can be efficiently secured, uneven drying of various thin and thick objects to be dried can be prevented, and drying can be efficiently performed.

According to the third aspect of the present invention, the plurality of small holes provided in the rotating blade are formed inside the outer peripheral portions of the plurality of radial pump-up blades provided on the lower surface of the rotating blade. At the time of rotation of the rotor, the centrifugal force of the plurality of radial pump-up blades can increase the amount of warm air passing through the plurality of small holes provided in the rotor. The amount of wind can be increased, and drying can be performed efficiently.

According to the fourth aspect of the present invention, the plurality of small holes provided in the rotor are formed substantially in the vertical direction, and the upper hole diameter is made larger than the lower hole diameter. A large area of the whole small hole can be secured, the contact area of the hot air to the drying object can be increased, and the drying can be performed efficiently. In addition, by setting the size of the lower hole as a foreign matter intrusion prevention dimension, it is possible to prevent foreign matter from entering the back surface side of the rotary wing beforehand. Wastewater in the inner tank can be treated in the shortest time.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a washing and drying machine according to a first embodiment of the present invention.

FIG. 2A is a sectional view of a rotor of a washing and drying machine according to a third embodiment of the present invention. FIG. 2B is an enlarged sectional view of a main part of the rotor of the washing and drying machine.

FIG. 3 is a longitudinal sectional view of a conventional washer / dryer.

[Explanation of symbols]

 23 Outer tank 25 Inner tank 25a Ventilation hole 26 Rotor blade 28 Motor (driving means) 31 Fan motor (heating / blowing means) 32 Heater (heating / blowing means) 35 Drainage passage opening 42 Cooling blower (cooling means) 43 Small hole

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Shinichi Matsuda 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Yoshihiro 1006 Kadoma Kadoma, Osaka Prefecture 1006 Kadoma Matsushita Electric Industrial F Terms (reference) 3B155 AA16 BB16 CB07 CB47 CB52 CB57 CB61 DA02 DA06 EA06 FC01 FC02 FC06

Claims (4)

[Claims] 1. An inner tub for storing laundry or an object to be dried and having an air hole, a rotary wing provided on an inner bottom of the inner tub,
An outer tank that rotatably houses the inner tank, a driving unit that rotationally drives the inner tank, and a heating / supply unit that supplies warm air to the inner tank.
A blower, and a cooler for cooling the outer surface of the outer tub, and in the drying step, humid air generated by blowing hot air on the object to be dried is cooled by the cooler to dehumidify and dry. The rotating blade is provided with a plurality of small holes penetrating therethrough, and the small holes are disposed above a drainage port provided in a lower part of the outer tub. 2. The washing and drying machine according to claim 1, wherein the total effective area of the plurality of small holes provided in the rotor is at least larger than the opening area of the drainage passage opening of the outer tub. 3. The washing and drying machine according to claim 1, wherein the plurality of small holes provided in the rotor are formed inside an outer peripheral portion of a plurality of radial pump-up blades provided on a lower surface of the rotor. 4. The washing and drying machine according to claim 1, wherein the plurality of small holes provided in the rotor are formed substantially vertically, and the upper hole diameter is larger than the lower hole diameter.