JPH05245295A - Clothing drier - Google Patents

Abstract

PURPOSE:To provide a water-cooled dehumidification type clothing drier without using an aluminum fin type heat exchanger. CONSTITUTION:A centrifugal fan 5 is provided behind a clothing drying drum 1, circulating air is fed into a draft air duct by the centrifugal fan 5, a heater heating the circulating air is provided on the inlet side of the blast air duct to the clothing drying drum 1, a cooling water nozzle 11 spraying the cooling water to the centrifugal fan 5 is provided on a centrifugal fan case 10 side, and the centrifugal fan 5 is directly cooled to remove the humidity in the circulating air in a water-cooled dehumidification type clothing drier. The room temperature hardly rises as compared with a conventional air-cooled dehumidification type clothing drier, and no discomfort is given to a user.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer having a new dehumidifying and drying mechanism for household clothes dryers.

[0002]

2. Description of the Related Art Conventionally, an air-cooling dehumidification type clothes dryer has a drawback that the room air rises and the user feels uncomfortable because the room air is used as cooling air. For this reason, a water-cooled dehumidification type clothes dryer that does not raise the room temperature has been conventionally proposed, but the conventionally proposed water-cooled dehumidification type clothes dryer cools the circulating air blown by the centrifugal fan and the centrifugal fan with tap water. However, there is a drawback that an expensive aluminum fin type heat exchanger is required (for example, JP-A-63-122500).

[0003]

In order to solve this problem, a water-cooling dehumidification type clothes dryer using only a centrifugal fan without using the conventionally proposed aluminum fin type heat exchanger. Is to provide.

[0004]

In order to solve the above problems, the present invention provides a centrifugal fan at the rear of a clothes drying drum, and the centrifugal fan sends circulating air to a blower wind tunnel, and the clothes drying drum of the blower wind tunnel is provided. A heater that heats the circulating air is installed on the inlet side, and a cooling water nozzle that blows cooling water to the centrifugal fan is installed on the centrifugal fan case side, and the centrifugal fan is directly cooled to dehumidify the moisture in the circulating air. It is a type of clothes dryer.

[0005]

According to the present invention, with the above-described structure, the centrifugal fan is directly blown with cooling water such as tap water to dehumidify the moisture in the circulating air circulating between the clothes drying drum and the heater. Can be done. Therefore, clothes can be dried without installing an expensive heat exchanger as in the past.

[0006]

1 is a sectional view of a clothes dryer according to an embodiment of the present invention, and FIG. 2 is an electric circuit diagram of the same. FIG. 3 is a room temperature rise curve when the clothes dryer of one embodiment of the present invention is installed and operated indoors.

1 and 2, the clothes drying drum 1 is driven by a motor 2, a pulley 3 and a belt 4. A centrifugal fan 5 provided behind a clothes drying drum (hereinafter referred to as a drum) 1 is also driven by a motor 2, fan pulleys 6 and 7, and a fan belt 8. The centrifugal fan 5 is cooled with cooling water such as tap water sprayed from a cooling water nozzle 11 mounted on the fan case 10, and the circulating air b passing through the centrifugal fan 5 is directly cooled and dehumidified to be a circulating air c. Condensation water and cooling water in c are drain 12
Eject more. The injection amount of cooling water is controlled by an electromagnetic water supply valve 13 provided in the cooling water nozzle 11, a thermistor 14 for temperature detection provided in the circulating wind tunnel 9, and a controller 15.
Is controlled to the optimum amount. The dehumidified circulating air c is heated by the heater 16 provided in the preceding stage of the drum 1 to become the circulating air a and enters the drum 1 to dry the clothes 17.
The circulating wind b, which is the clothes 17 dried and moist, passes through the filter 18 and enters the centrifugal fan 5 to be cooled and dehumidified. By repeating this, the drying process proceeds. As the temperature inside the drum 1 rises near the end of drying, the thermistor 19 for temperature detection provided at the rear of the drum 1 and the controller 15 control the drying to end at the time of optimum dryness.

Numeral 20 is a clothing inlet. Reference numeral 21 is an exhaust hole that can be opened and closed, and 22 is an intake hole that can be opened and closed.

FIG. 3 shows a clothes dryer of the present invention having a capacity of about 4.5 m ^2.
Shows room temperature rise when installed in a bathroom of the size. Curve A is a temperature rise curve of the clothes dryer of the present invention, and the temperature rise value t is about 2 ° C. Curve B is a conventional air-cooling dehumidification type temperature rise curve, and the temperature rise value T is about 12 ° C.
Is. That is, the clothes dryer of the present invention hardly raises the room temperature, so that the user does not feel uncomfortable.

[0010]

As described above, the clothes dryer of the present invention is a water-cooled dehumidification type clothes dryer equipped with a centrifugal fan, and an expensive heat exchanger such as an aluminum fin copper pipe heat exchanger is separately provided. It is possible to provide a water-cooled dehumidification-type clothes dryer that does not require the structure, has a simple structure, and is inexpensive. Further, compared to the conventional air-cooling dehumidification type clothes dryer, there is almost no rise in room temperature, so that the user does not feel uncomfortable.

Further, when there is no water supply facility near the clothes dryer, opening the exhaust hole 21 and the intake hole 22 can be used as a so-called exhaust type clothes dryer, which is extremely convenient.

[Brief description of drawings]

FIG. 1 is a sectional view of a clothes dryer according to an embodiment of the present invention.

FIG. 2 is an electric circuit diagram of an embodiment of the present invention.

FIG. 3 is a diagram showing a room temperature rise curve when the clothes dryer according to one embodiment of the present invention is installed and operated indoors.

[Explanation of symbols]

 1 Clothing Drying Drum 2 Motor 5 Centrifugal Fan 9 Circulating Wind Tunnel 10 Fan Case 11 Cooling Water Nozzle 12 Drainage Port 13 Electromagnetic Water Supply Valve 14 Thermistor 15 Controller 16 Heater 17 Clothing 18 Filter 19 Thermistor 20 Inlet 21 Exhaust Hole 22 Intake Hole

Claims (2)

[Claims] 1. A centrifugal fan is provided at the rear of a clothes drying drum, a circulating air is sent to a ventilation wind tunnel by the centrifugal fan, and a heater for heating the circulation air is provided at an inlet side of the clothes drying drum of the ventilation wind tunnel, and the centrifuge is provided. A water-cooling dehumidification-type clothes dryer that has a cooling water nozzle that blows cooling water to the fan on the side of the centrifugal fan case to dehumidify the moisture in the circulating air. 2. The clothes dryer according to claim 1, wherein an exhaust hole that can be opened and closed is provided on the exhaust side of the centrifugal fan case of the centrifugal fan, and an intake hole that is opened and closed to open to the outside air is provided on the heater side of the blower wind tunnel.