JPH0549314B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a dehumidifying clothes dryer for use in general households.

Structure of a conventional example and its problems A conventional dehumidifying clothes dryer will be explained with reference to FIG. Reference numeral 1 denotes a drum rotatably provided within the main body 2, and 3 a heat exchange type blower that introduces hot air from a heater 4 into the drum 1 and exchanges heat with outside air. Reference numeral 5 denotes a circulation duct that connects the heat exchange type blower 3 and the heater 4. 6 is a cooling casing that guides the cooling air from the heat exchange type blower 3, and 7 is a back plate having intake holes 8 that introduce the cooling air.

Further, 9 is a drain port for draining condensed water generated by heat exchange.

In the above configuration, when the motor (not shown) rotates, the drum 1 and the heat exchange type blower 3 rotate, and the air heated by the heater 4 enters the drum 1, exchanges heat with the clothes, and then becomes hot and humid. The heated air reaches the heat exchange type blower 3, where it exchanges heat with the cooling air 10 taken in through the intake port 8 of the back plate 7,
It passes through the circulation duct 5, reaches the heater 4 again, and is introduced into the drum 1, repeating the cycle. Condensed water generated from the heat exchange is drained out of the main body 1 through a drain port 9 provided below the circulation duct 5.

In the above configuration, the drain port 9 of the circulation duct 5
The pressure near point A becomes higher than atmospheric pressure, and a portion of the hot and humid circulating air inevitably leaks out of the main body 1. Due to the above-mentioned phenomenon, there were problems such as moisture coming out of the main body 1, causing dew condensation inside the room, and causing a decrease in thermal efficiency.

OBJECTS OF THE INVENTION The present invention solves these conventional problems and provides a dehumidifying clothes dryer that improves thermal efficiency and prevents moisture from dispersing indoors.

Composition of the Invention In order to achieve the above object, the clothes dryer of the present invention rotatably supports a rotating drum within the main body, guides hot air generated from a heat generating source into the drum, and creates a high-temperature, high-humidity environment within the rotating drum. The bellows-shaped drainage hose has a circulation path for guiding air to the heat exchanger and a cooling air path for cooling the heat exchanger, and discharges condensed water generated in the heat exchanger to the outside of the main body. It is connected to the lowest part of the circulation path and arranged in a meandering manner within the cooling air path, with the other end leading outside the main body.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 2 to 4, 11 is a drum rotatably provided in the main body 12, and 13 is a heat exchange type that introduces hot air from a heater 14 into the drum 11 and exchanges heat with outside air. It's a blower. A circulation duct 15 connects the heat exchange type blower 13 and the heater 14.

16 is a cooling casing that guides the cooling air from the heat exchange type blower 13, and 17 is a back plate having an intake hole 18 that introduces the cooling air.

Reference numeral 19 is a drain port for draining condensed water generated by heat exchange, and reference numeral 20 is a drain hose that passes through the cooling casing 16.

In the above configuration, when the motor (not shown) rotates, the drum 11 and the heat exchange type blower 1
3 rotates, the air heated by the heater 14 enters the drum 11, and after exchanging heat with the clothes, the high temperature and humidity air reaches the heat exchange type blower 13, and is discharged from the air intake port 18 of the back plate 17. The air exchanges heat with the intake cooling air, passes through the circulation duct 15, reaches the heater 14 again, and is introduced into the drum 11, repeating the cycle.

In the above configuration, the pressure at point B near the drain port 19 of the circulation duct 15 is higher than atmospheric pressure, and some of the circulating air tends to leak out through the drain hose 20, but the drain hose 20 does not allow the cooling air to be exhausted. 21, even inside the drain hose 20, the exhaust 21
It exchanges heat with the air and dehumidifies it. In order to increase heat exchange efficiency, the drain hose 20 is shaped like a bellows to increase the surface area as shown in FIG. In this way, a large amount of cooling air is applied to the drain hose 20.

In addition, by attaching the drain hose 20, pipe friction due to leakage of circulating air from the drain port 19 increases.
Leakage can also be kept to a minimum, air entering the circulation path from outside the main body 11 can be reduced, a drop in temperature of the circulating air can be prevented, and the thermal efficiency of drying clothes can be improved.

Effects of the Invention As is clear from the above embodiments, the dehumidifying clothes dryer of the present invention is particularly advantageous in that the condensed water drain hose is routed through the cooling air exhaust section of the heat exchanger, so that the drain hose itself is The condenser and pipe friction prevents moisture from leaving the dehumidifying dryer, thereby improving quality and thermal efficiency.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of a conventional dehumidifying clothes dryer, FIG. 2 is a vertical cross-sectional view of a dehumidifying clothes dryer showing an embodiment of the present invention, and FIG. FIG. 4 is an enlarged sectional view of the drain hose section. 15... Circulation duct, 16... Cooling casing, 19... Drain port, 20... Drain hose.

Claims (1)

[Claims] 1 A rotary drum is rotatably supported in the main body, and has a circulation path that guides hot air generated from a heat generation source into the drum and leads hot and humid air in the rotary drum to a heat exchanger. A bellows-shaped drainage hose that has a cooling air path for cooling and discharges condensed water generated in the heat exchanger to the outside of the main body has one end connected to the lowest part of the circulation path and snakes inside the cooling air path. A dehumidifying clothes dryer with the other end guided outside the main unit.