JPH0260695A - Drum type washing and drying machine - Google Patents

Abstract

PURPOSE:To prevent washing water in a gutter from leaking to an external part and to execute efficient drying with a compact machine by providing a fan device, which has a first fan to supply hot wind into a rotary drum on one surface and a second fan to take in external air on the other surface, to be used for heat exchange as well and providing the opening position of a duct, which is provided with being linked to a fan casing, in an upper direction than an inundating port. CONSTITUTION:Air in a rotary drum 4 is sucked through an opening part 23 and an air hole 22 to a right room 14 of a fan casing 12 by the rotation of a first fan 17 in a fan device 13. Then, the air is passed through a circulation duct 30, caused to be the hot wind by the heat of a heater 32 and exhausted from a hot wind supplying port 31 into a gutter 2. This hot wind flows into the internal part of the rotary drum 4 and dries clothes. Since the fan casing is closely linked to the gutter 2 and both respective openings 33a and 34a of a sucking duct 33 and an exhausting duct 34 are provided in the upper direction than an inundating port 40, the water to flow into the fan casing 12 is prevented from flowing out to the external part without fail.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention provides a system that uses the rotation of a rotating drum disposed in a tub to
This invention relates to a drum-type washer/dryer that washes and dehydrates clothes, and then dries the clothes with hot air while agitating the clothes.

(Prior Art) A conventional drum-type washing/drying machine has a horizontal shaft-shaped rotating drum rotatably installed in a tub, and the clothes inside are washed and dehydrated by the rotation of the rotating drum during washing operation. Furthermore, a fan casing is provided that communicates with the side of the tub, and a fan device is disposed therein, and the fan device circulates hot air inside the tub during drying operation, and exchanges heat with the outside air to cool the hot air. This is to remove the moisture contained in the

(Problem to be Solved by the Invention) However, in the conventional configuration described above, only a felt seal is provided around the outer periphery of the fan device to partition the inside of the fan casing to block hot air from outside air. If washing water flows into the fan casing due to an abnormal rise in the water level or abnormal foaming of detergent during washing, the washing water will overflow from the fan casing to the outside through the outside air passage. There was fear. Therefore, in order to prevent washing water from overflowing from the tub into the fan casing, the position of the communication hole between the tub and the fan casing should be set as high as possible, or the communication opening should be shaped like a semicircle with the lower half closed. However, the former fM configuration has the disadvantage of increasing the size of the tub as a whole, while the latter configuration has a small communication opening area, resulting in poor ventilation efficiency and poor drying efficiency. There was a drawback that the value decreased.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a drum-type washer/dryer that can reliably prevent the washing water in the tub from getting wet to the outside in the event of an abnormality, and that is compact and capable of efficient drying.

[Structure of the Invention (Means for Solving the Problems) The present invention provides a tub having an overflow port and capable of storing water, and rotates around a horizontal axis in the tub, and by the rotation, the clothes inside the tub are disposed of. A rotating drum is provided for washing and dewatering during the washing operation and stirring during the drying operation, a fan casing is arranged on the side of the tub so as to communicate with the inside of the tub, and one side of the heat exchanger is used for the drying operation. A first blade R for supplying hot air into the rotating drum at times, and a second blade R for introducing outside air into the other side of the heat exchanger during the drying operation.
A heat exchange fan device having blades is provided in the fan casing, and an intake duct and an exhaust duct are provided in communication with the fan casing so as to intake and exhaust outside air to the second blade. , the openings of the intake duct and the exhaust duct are located above the overflow port.

(Function) According to the above-described means, even if the water level in the tub rises abnormally and flows into the fan casing, it is possible to reliably prevent the water from overflowing to the outside.

Further, the tub can be made smaller, and the communication area between the tub and the fan casing can be increased to improve drying efficiency.

(Example) Hereinafter, one example of the present invention will be described based on the drawings. 1 is an outer box of the drum-type washer/dryer, and inside thereof a tub 2 is supported via an elastic support mechanism 3. Reference numeral 4 denotes a rotating drum disposed inside the tub 2, with a rotating shaft 5 fixed to the water tank at the center of the right side t1m4a in the drawing, and a bearing 7 mounted on a bearing body 6 fixed to the right side plate 2a of the tub 2. , 7 is rotatably supported.

8 is a drum drive motor fixed to the outer bottom of the tub 2.
The pulley 9 fitted on the rotating shaft 8a and the rotating drum 4
A belt 11 is passed between a pulley 10 fitted to a rotary shaft 5 fixed to the rotary shaft 5. On the other hand, a short cylindrical fan casing 12 is firmly fixed to the outside of the left side plate 2b of the tub 2 by, for example, welding. Reference numeral 13 denotes a fan device disposed inside the fan casing 12, which has first and second blades 17 and 18 on both left and right sides of a heat exchanger 16 that partitions the inside of the fan casing 12 into two left and right groups 14 and 15. are doing. The right end of the rotating shaft 19 fixed to the center of the fan device 13 is rotatably supported by a bearing body 20 fixed to the center of the left side plate 2b of the tub 2 via bearings 21, 21. A large number of ventilation holes 22 are provided in the left side plate 2b of the tub 2 around the bearing body 20 to communicate the inside of the tub 2 with one of the chambers 14 in the fan casing 12. Also, the left side of drum 4! ! An opening 23 corresponding to the ventilation hole 22 is provided at the center of 124b, and a lint filter 24 is disposed therein. - direction, rotation axis 1
The left end of 9 is connected to the fan casing 1 via the seal member 25.
2, and a pulley 26 is fitted therein. Reference numeral 27 denotes a fan drive motor fixed to the outer bottom of the tub 2, and a belt 29 is passed between the pulley 28 fitted on the rotating shaft 27a of this motor and the pulley 26 mentioned above.

On the other hand, reference numeral 30 denotes a circulation duct placed at the top of the tub 2, one end of which communicates with the right chamber 14, and the other end connected to a hot air supply port 31 formed at the top of the tub 2. A heater 32 is disposed within the circulation duct 30 near the hot air supply port 31. Further, 33 is a fan casing 1 connected to the center of the left chamber 15.
2 is an intake duct provided in the fan casing 12, and 34 is an exhaust duct provided in the fan casing 12 so as to communicate with the outer peripheral side of the chamber 15.

35 is a drain valve provided at the bottom of the tub 2, and its valve hole 3
A valve body 36 is horizontally movably provided on the valve body 5a, and a drain hose 37 is connected to the outflow side of the valve body 36. A drain hose 38 has one end connected to the bottom of the fan casing 12, and the other end connected to the inflow side of the drain valve 35 via a reverse IF valve 39.

Reference numeral 40 denotes a water overflow port provided on the side of the tub 2, which is set at a position slightly above the normal washing water level, and is communicated with the outflow side of the drain valve 35 through a water overflow hose (not shown). Further, the positions of the above-described ventilation holes 22 are set such that their lowest positions are slightly above the overflow port 40. In addition, each opening 33a of the intake duct 33 and the exhaust duct 34
and 34a are both set above the overflow port 40.

Note that 41 is a felt seal provided on the outer periphery of the heat exchanger 16 of the fan device 13, and its tip is in contact with the inner periphery of the fan casing 12.

Next, the operation of the above configuration will be explained. When clothes and detergent are put into the rotating drum 4 from the clothes entrance (not shown) at the top of the outer box 1, water is supplied into the tub 2, and the washing operation is started, the motor A is started and its rotation is started. The force is decelerated and transmitted to the rotating drum 4 via the belt 11. As a result, the rotary drum 4 is rotated simultaneously and the clothes inside are agitated up and down, and the clothes are washed with detergent by the agitation f'1. After the detergent washing process is completed, water is drained and water is resupplied, and the clothes are rinsed by rotating only the rotary drum 4 as described above.

After completing this rinsing process, the water is drained, the motor 8 is rotated at high speed, and the rotating drum 4 is rotated at high speed to dehydrate the clothes. After this dehydration is completed, the drying process begins. In this drying process, the motor 8 is rotated at a low speed and the motor 27 is also rotated. As a result, the rotary drum 4 is rotated and the fan device 13 is rotated through the belt 29.
is also rotated. In this drying process, the heater 32 is also energized, and the rotation of the first blade 17 of the fan device 13 causes the air inside the rotating drum 4 to pass through the opening 231 and the ventilation hole 22 as shown by arrow A in FIG. Fan casing 1
The air is sucked into the chamber 14 on the right side of the tub 2 , passes through the circulation duct 30 , is hot-aired by the heat of the heater 32 , and is discharged from the hot-air supply port 31 into the tub 2 . This hot air flows into the rotating drum 4 as shown by arrow B in FIG. 1 and dries the clothes.

The moist air that has removed moisture from the clothes is dehumidified by exchanging heat with the outside air sucked into the left chamber 15 through the air intake duct 33 in the right chamber 14 of the fan casing 12 via the heat exchanger 16. . The dehumidified air in the room 14 is heated again through the circulation duct 30 and is dried.

In this way, while circulating the hot air, the rotating drum 4
To efficiently dry clothes by turning the clothes upside down by rotation.

Therefore, for example, when the water level rises abnormally beyond the water overflow port 40 during washing, washing water may flow into the fan casing 12 from the ventilation hole 22, but the fan casing 12 does not flow into the tub 2. In addition to being watertightly connected, the openings 33a and 34a of the intake duct 33 and the exhaust duct 34 are both set above the water overflow port 40, so that the water flowing into the fan casing 12 can be leaked outside. This ensures that leakage is prevented. Furthermore, when the valve body 36 of the drain valve 35 opens, the water that has flowed into the fan casing 12 is transferred to the check valve 39 and the water distribution valve 3.
Water is drained to the outside from the distribution hose 37 via the fan casing 12 during drying operation when the fan unit @13 rotates.
No water will remain inside.

In this way, in the above embodiment, each opening 33a of the intake duct 33 and the exhaust duct 34 that communicate with the fan casing 12
and 34a are both set above the overflow port 40, so even if the water level in the tub 2 rises abnormally and washing water flows into the fan casing 12, Water is reliably prevented from overflowing to the outside. For this reason, there is no need to increase the external size of the bucket 2, and therefore,
Miniaturization is possible. Further, since the ventilation hole 22 does not need to be positioned upward and can be set at a position aligned with the center of the first blade 17, the air blowing efficiency of the first blade 17 is improved, and therefore the hot air is transferred to the rotating drum. 4 can be efficiently supplied, and drying efficiency is also improved.

[Effects of the Invention] As is clear from the above description, the present invention provides a bucket that has an overflow port and can store water, and rotates around a horizontal support inside the bucket, and the rotation removes the clothes inside. A rotating drum is provided for washing and dewatering during the washing operation, and stirring during the drying operation, and a fan casing is disposed on the side of the tub so as to communicate with the tub, and one side of the heat exchanger is disposed within the fan casing. and a first blade for supplying hot air into the rotating drum during the drying operation, and a second blade for introducing outside air during the drying operation on the other surface of the heat exchanger. A fan device is installed that also serves as a heat exchanger.
An intake duct and an exhaust duct are provided in communication with the fan casing so as to intake and exhaust outside air to the second blade, and each opening of the intake duct and the exhaust duct is located at a position lower than the overflow port. Since it is characterized by being provided above, even if the water level in the tub rises abnormally and flows into the fan casing, it can reliably prevent the water from overflowing to the outside. Further, the tub can be made smaller, and the communication area between the tub and the fan casing can be increased to improve drying efficiency, which is an excellent effect.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall longitudinal sectional front view, and FIG. 2 is an enlarged longitudinal sectional view of the main parts. In the drawing, 2 is a bucket, 4 is a rotating drum, 8 is a motor, 12 is a fan casing, 13 is a fan device, 16 is a heat exchanger, 17 is a first blade, 18 is a second blade, and 22 is a ventilation hole. , 27 is a motor, 33 is an intake duct, 34 is an exhaust duct, 30 is a circulation duct, 32 is a heater, and 40 is an overflow port.

Claims (1)

[Claims] 1. A tub having an overflow port and capable of storing water, and a tub provided within the tub so as to be able to rotate around a horizontal axis, and by its rotation, the clothes inside are washed and dehydrated during the washing operation, and during the drying operation. a rotating drum for stirring; a fan casing disposed on the side of the tub so as to communicate with the tub;
The fan casing is rotatably provided, and has first blades on one side of the heat exchanger for supplying hot air into the rotating drum during the drying operation, and has a first blade on the other side of the heat exchanger. A second tube for taking in outside air during the drying operation.
a fan device for heat exchange and having blades, and an intake duct and an exhaust duct provided in communication with the fan casing so as to intake and exhaust outside air to and from the second blade. A drum-type washer/dryer characterized in that the openings of the intake duct and the exhaust duct are located above the overflow port.