JPH11164996A - Drum type fully-automatic washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drum type fully-automatic washing and drying machine reducing the drying time of wash by cooling air even in summer or the like by improving dehumidifying performance. SOLUTION: The machine successively washes, rinses, dehydrates and dries wash such as clothes supplied in a drum 1. In this case, an air inlet 2 and an outlet 3 for drying are provided at the drum 1 and communicated by air circulating route 4 for drying. A blowing means A blowing air to the route 4, a heating means B heating air and a dehumidifying means C dehumidifying air by condensating steam included in air for drying outputted from the outlet 3 of the drum 1 are provided. The means C is constituted of a heat exchanger for drying 5 arranged at the route 4 and a cooling device 6 supplying a coolant for the exchanger 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type fully automatic washing and drying machine for sequentially washing, rinsing, dehydrating and drying laundry such as clothes put into a drum, and more particularly to dehumidification of air contributing to drying. The present invention relates to a dehumidifying device for drying air.

[0002]

2. Description of the Related Art In recent years, there has been provided a drum type fully automatic washing and drying machine for sequentially washing, rinsing, dehydrating and drying laundry such as clothes put into a drum. The drying structure is as follows. The drum into which laundry is put is provided with an inlet and an outlet for drying air, and the inlet and the outlet of the drum are communicated through a circulation path of the drying air. A heater as a heating means for heating the air and a fan as a blowing means for blowing air for drying are arranged.
Further, a discharge port for discharging tap water is provided in the circulation path in order to dehumidify and dry the air containing water vapor from the outlet of the drum to dry air. In drying the dehydrated laundry, the fan is driven and the heater is energized, the drum is driven as necessary, and tap water is discharged from the discharge port. Then, the air heated by the heater enters the drum from the inlet of the drum, and the air that has contributed to the drying of the laundry circulates between the drum and the circulation path so that the air returns to the circulation path from the outlet of the drum. The laundry is dried. At this time, the air coming out of the outlet of the drum is air containing water vapor, but the tapping water is discharged from the outlet to cool the air coming out of the outlet of the drum, and to condense the water vapor to dehumidify and dry. Air can be obtained and the dried air is sent to a fan or heater.

[0003]

In the above conventional example, tap water is discharged from a discharge port in order to dehumidify air that has contributed to drying and obtain dried air. Since the temperature is increased, the effect of cooling the air discharged from the drum is reduced, the dehumidifying performance is reduced, and it becomes difficult to obtain dry air, and there is a problem that it takes time to dry the laundry.

SUMMARY OF THE INVENTION The present invention has been made in view of the above description, and provides a drum-type fully automatic washing and drying machine capable of cooling air to improve dehumidification performance and shorten the drying time of laundry even in summer or the like. To be.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a drum-type fully automatic washing and drying machine of the present invention sequentially performs washing, rinsing, dewatering, and drying of laundry such as clothes put into a drum 1. The drum 1 is provided with an inlet 2 and an outlet 3 for drying air, and the inlet 2 and the outlet 3 are communicated with each other through a circulation path 4 for drying air. Means A for blowing air, heating means B for heating the air, and dehumidifying means C for condensing and dehumidifying the water vapor contained in the drying air coming out of the outlet 3 of the drum 1.
And the dehumidifying means C includes a drying heat exchanger 5 disposed in the circulation path 4 and a cooling device 6 for supplying a refrigerant to the drying heat exchanger 5.
And characterized in that: The refrigerant cooled by the cooling device 6 is supplied to the drying heat exchanger 5 to cool the drying heat exchanger 5, and the air containing water vapor is brought into contact with the drying heat exchanger 5 cooled to a low temperature. It can be dehumidified by dew condensation on the drying heat exchanger 5, and can be cooled to a low temperature even in summer to effectively dehumidify and dry the air, thereby shortening the drying time of the laundry.

[0006] It is also preferable that the cooling device is a chilled water generating device, and chilled water is supplied to the drying heat exchanger as a refrigerant.

[0007]

FIG. 2 shows an entire drum type fully automatic washing and drying machine, in which a drum 1 serving as a washing tub is provided in a housing 7 in a horizontal direction. The drum 1 is mainly composed of an outer cylinder 1a having a closed structure and an inner cylinder 1b having a number of water holes, and the inner cylinder 1b can be driven to rotate. Stirring claws 8 are provided at appropriate places on the inner surface of the inner cylinder 1b. At one end of the outer cylinder 1a, an access port 9 for taking in and out laundry such as clothes is provided, and the access port 9 is located on the front surface of the housing 7. This doorway 9
Is provided with a lid that can be closed in a watertight manner so that it can be opened and closed. In FIG. 2, 11 is a water supply valve, 12 is a damper, 13 is a dehydration motor, and 14 is a drainage pump. The overall operation of the drum-type fully automatic washing and drying machine is as follows. When the lid is opened and laundry such as clothes is put into the drum 1 and the lid is closed and driven, washing, rinsing, dehydration and drying of the laundry are sequentially performed. Washing is performed by supplying an appropriate amount of water into the drum 1, adding a detergent, and rotating the inner cylinder 1b. When rinsing is performed, water is supplied into the drum 1 and the inner cylinder 1b is rotationally driven. In addition to such pool rinsing, shower rinsing for showering water is also performed. Dehydration is performed by rotating the inner cylinder 1b at high speed. Drying is performed by circulating heated air through the drum 1, and at this time, the inner cylinder 1b is driven to rotate as necessary.

FIG. 1 shows the structure of a drying apparatus which is a main part of the present invention. An air inlet 2 is provided in the upper part of the outer cylinder 1a of the drum 1 near the inlet / outlet 9, and the drum 1
An air outlet 3 is provided at the lower side of the outer cylinder 1b, and the inlet 2 and the outlet 3 are communicated with each other through a circulation path 4. A heating unit B, a blowing unit A, and a dehumidifying unit C are arranged in the circulation path 4 in order from the inlet 2 to the outlet 3. As the heating means B, for example, a heater 15 is arranged. The heater 15 may be electrically heated or may be heated with hot water. The blowing means A is a fan 16
, A motor 17 for driving the fan 16, and a belt 18 for transmitting the power of the motor 17 to the fan 16. The dehumidifying means C is formed by a drying heat exchanger 5, a cooling device 6 for cooling the refrigerant, and a refrigerant circulation line 19 for circulating the refrigerant between the drying heat exchanger 5 and the cooling device 6,
The drying heat exchanger 5 is provided inside the circulation path 4. In the case of this example, the cooling device 6 is a cold water generating device, and the refrigerant is cold water. After the washing, rinsing, and dehydration of the laundry in the inner cylinder 1b of the drum 1 are sequentially performed, a drying process is started, and the laundry is heated by the heater 15 which is the heating means B and by the fan 16 of the blowing means A. The air is blown, and the refrigerant is sent from the cooling device 6 to the drying heat exchanger 5. The air blown by the fan 16 and sent as shown by the arrow a in FIG. 1 is heated by the heater 15 and sent as shown by the arrow b, and
Heated air is supplied to the inside, and the heated air is applied to the laundry in the drum 1, and air containing water vapor which contributes to drying of the laundry exits from the outlet 3 of the drum 1 as shown by an arrow c. The air containing the water vapor hits the drying heat exchanger 5 to be cooled and condensed on the drying heat exchanger 5 to be dehumidified. The dehumidified and dried air is supplied to the fan 16 as indicated by an arrow d. And circulates again so as to be sent from the fan 16 to the heater 15 as shown by the arrow a. The laundry is dried by the circulation of the air. In the dehumidifying means C, the refrigerant is sent from the cooling device 6 to the drying heat exchanger 5 as shown by the arrow e, and the arrow f is sent from the drying heat exchanger 5 to the cooling device 6 as shown by the arrow f.
As described above, the refrigerant circulates back to cool the drying heat exchanger 5. Water droplets condensed and condensed by the air containing water vapor impinging on the drying heat exchanger 5 fall from the drying heat exchanger 5 as shown in FIG.
Through the outlet 2 into the drum 1 and through the drain pump 14
Drained outside at. Although it is dehumidified as described above, since the drying heat exchanger 5 is cooled by the cooling device 6, it is sufficiently cooled even in summer or the like, the dehumidified air is sufficiently dried, and the drying time of the laundry is reduced. Can be greatly reduced as compared with the conventional case.

[0009]

According to the present invention, the drum is provided with an inlet and an outlet for drying air as described above, and the inlet and the outlet are communicated with each other through a circulation path of the drying air. Since a blowing means for blowing air in the path, a heating means for heating the air, and a dehumidifying means for condensing and dehumidifying the water vapor contained in the drying air coming out of the outlet of the drum are provided. The blown air is heated by the heating means and put into the drum from the inlet, and the heated air is applied to the laundry in the drum, and the air containing water vapor from the drum is dehumidified by the dehumidifying means, and the dried air is sent to the blowing means. It can be circulated so that it can be sent, and of course it is possible to dry the laundry by circulating the air,
Since the dehumidifying means is constituted by a drying heat exchanger arranged in the circulation path and a cooling device for supplying a refrigerant to the drying heat exchanger,
The refrigerant cooled by the cooling device is supplied to the drying heat exchanger to cool the drying heat exchanger, and the air containing water vapor is brought into contact with the drying heat exchanger cooled to a low temperature to thereby perform the heat exchange for drying. It is capable of dehumidifying by dew condensation on a container, and can be cooled to a low temperature even in summer to effectively dehumidify and dry air, thereby shortening the drying time of laundry.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a main part of an example of an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing the entire automatic washing and drying machine according to the first embodiment;

[Explanation of symbols]

 Reference Signs List A blowing means B heating means C dehumidifying means 1 drum 2 inlet 3 outlet 4 circulation path 5 drying heat exchanger 6 cooling device

Claims (2)

[Claims] 1. A drum-type fully automatic washing and drying machine for sequentially washing, rinsing, dewatering and drying laundry such as clothes put into a drum. And an outlet communicate with each other through a circulation path of the drying air, and a blowing means for blowing air into the circulation path of the drying air, a heating means for heating the air, and the drying air flowing out of the outlet of the drum. Is provided with a dehumidifying means for condensing and dehumidifying the water vapor contained in the water, wherein the dehumidifying means comprises a drying heat exchanger arranged in a circulation path and a cooling device for supplying a refrigerant to the drying heat exchanger. Drum type fully automatic washing and drying machine. 2. The drum-type fully automatic washing and drying machine according to claim 1, wherein the cooling device is a chilled water generating device, and chilled water as a refrigerant is supplied to the drying heat exchanger.