JPH08173692A - Drying machine for clothes - Google Patents

Abstract

PURPOSE: To enable the condensation of more moisture out of very hot and damp air. CONSTITUTION: A two-blade fan 4 is provided to perform heat exchange between the very hot and damp air in a drum 2 and the cold ambient air, and a twisted plate 12 is instilled, for swirling the very hot and damp wind, in a condensation duct 16 provided between the air outlet of the drum 2 and a heater 11 for drying clothes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type clothes dryer having a drying promoting function.

[0002]

2. Description of the Related Art Generally, a clothes dryer dries clothes by supplying warm air heated by an electric heater or gas into the drum while rotating a drum containing the clothes to be dried. The high-temperature and high-humidity air after drying is discharged to the outside of the drum and discharged to the outside of the machine as it is, or the exhaust air is air-cooled and dehumidified by heat exchange and then circulated to the heater for circulation.

In order to accelerate the drying, generally, the capacity of the heater should be increased or the air volume should be increased. However, increasing the capacity of the heater is required in terms of power consumption or electric capacity of domestic wiring. It is not preferable. If the air volume is simply increased, the temperature of warm air decreases as the air volume increases in the case of a nichrome wire heater and does not contribute much to drying promotion. In the case of a PTC heater, the power consumption increases as the air volume increases. To do.

On the other hand, the following invention has been made in which dehumidification is performed from high temperature and high humidity exhaust from a drum to improve heat exchange efficiency and shorten drying time. First, in the water-cooling dehumidifying / drying machine disclosed in JP-A-63-19198, high-humidity high-temperature circulating air in the drum is cooled by using tap water, and in JP-A-2-302299. In the disclosed dehumidifying clothes dryer, a resin double-blade fan is provided at the rear of the drum, and the outside air and the hot and humid air inside the drum are heat-exchanged and dehumidified through the resin fan.

[0005]

SUMMARY OF THE INVENTION A conventional clothes dryer constructed as described above, that is, JP-A-63-19198.
In the case of the water-cooled dehumidifying / drying machine disclosed in Japanese Patent Publication No. JP-A-2-302299, it is necessary to extend tap water to the clothes drying machine for heat exchange. If so, a large amount of air of about 2 m ³ / min flows linearly in the duct on both sides of the resin double-blade fan with low heat transfer, and thus only shows a low dehumidification rate of 50 to 60% and a long drying time. There was a problem.

[0006]

In order to solve the above-mentioned problems, the clothes dryer of the present invention is a clothes dryer for supplying warm air to a drum for storing clothes to dry the clothes. , A twist plate for swirling high-temperature and high-humidity air inside a condensation duct provided between a drum-side outlet of a double-blade fan for heat exchange between high-temperature and high-humidity air and low-temperature outside air and a heater for drying clothes Is inserted.

Further, in the invention described in claim 2, in addition to the structure of the invention described in claim 1, a hood is provided so that the outside air side blow-out port of the two-blade fan hits the outside of the condensation duct.

The invention according to claim 3 is the same as claim 1
In addition to the configuration of the invention described above, a hood is provided so that the wind generated during rotation of the drum hits the outside of the condensation duct.

[0009]

In the clothes dryer of the present invention having the above-mentioned structure, the circulating air for drying passes while swirling in the air-cooled condensation duct, so that heat exchange with the outside air is promoted, the drying time is short, and the power consumption is low. And the structure is simple.

[0010]

EXAMPLE An example of the clothes dryer of the present invention will be described below with reference to FIGS. 1 and 2. 1 and 2 are a lateral cross-sectional view and a front view of a main part showing a configuration of a clothes dryer according to an embodiment of the present invention.

In FIGS. 1 and 2, reference numeral 1 denotes a clothes dryer main body, and a drum rotating belt 9 for extracting a rotational force from a drum rotating motor 7 is provided on the outer periphery of a drum 2 which accommodates and rotates laundry. Wrapped around 50-60
r. p. It is rotating at m. In addition, a baffle 3 is attached to the inside of the drum 2, and when the drum 2 rotates, it carries the laundry up from the lower part of the drum to the upper part, and after reaching the upper part, drops the laundry down. It's done.

Reference numeral 12 denotes a twist plate (spiral) having a pitch of 50 mm, a height of 20 mm, and a total length of 450 mm for generating the swirling flow of the present invention. Reference numerals 13 and 14 denote outside air of both blade fans and wind generated when the drum rotates. The hood attached to the main body 1 in order to guide to FIG. A drain port 15 is provided below the condensing duct 16 to drain the condensed water out of the main body.

On the front side of the drum 2, a heater 11 of about 1 kW, which is a heat source for heating laundry,
There are seals 8a, 8b, 8c for sealing and connecting between the drum 2 and the fixed side of the dryer main body 1, and a laundry inlet 10. A filter 5 for removing fine thread waste is attached to the rear portion of the drum 2 from the main body 1. Behind the filter 5, there is provided a double-blade fan 4 which is rotated by a belt 6 applied to a drum rotation motor 7 to exchange heat between high-temperature and high-humidity air inside the drum and low-temperature outside air.

Next, the operation of the clothes dryer of the present invention constructed as above will be described. First, open the laundry input port 10, put in a laundry with a dry weight of 2 kg, and turn on the power.
The heater 11 generates heat and the drum 2 rotates at about 50 rotations. Then, the laundry is lifted by the baffle 3 and then falls again by gravity. While repeating this operation, it is dried by the hot air blown from the heater 3 at 100 ° C. and about 2 m ³ / min, and water is evaporated from the laundry.

Evaporated hot and humid air (60 ° C, 90%
First, the filter 5 removes large debris such as lint, and then the double-blade fan 4 exchanges heat with the outside air at a flow rate of about 20 m ³ / min. % RH) before reaching Spiral 12.

Here, the air swirls along the spiral 12 and collides with the wall of the condensation duct 16. Since the condensing duct 16 is cooled by the low temperature outside air guided by the hoods 13 and 14 or the rotating wind of the drum, the moisture in the high-temperature and high-humidity air that collides with the wall of the condensing duct 16 is cooled to be condensed water, and the condensed water is discharged from the drain port 15 through the body. Drained outside.

On the other hand, the low temperature air that has been dehumidified and cooled is heated again by the heater 11, and then the laundry is heated and dried.

[0018]

Since the clothes dryer according to the present invention has the above-described structure, the invention according to claim 1 is characterized in that the high temperature and high humidity air is swirled in the condensation duct to collide with the condensation duct wall so that the temperature becomes high. It can condense more moisture in the high humidity air, and has a dry weight of 2k compared to the conventional clothes dryer of this type.
About 10% of the amount of condensed water (800cc → 900c)
c) The performance can be improved by about 10% (90 minutes → 82 minutes) in the drying time.

Further, in addition to the effect of the invention of claim 1, the invention of claim 2 or claim 3 effectively applies the condensing duct by applying low temperature outside air or wind generated by rotation of the drum to the condensing duct. Can be cooled to.

[Brief description of drawings]

FIG. 1 is a transverse cross-sectional view of a main part showing the configuration of an embodiment of a clothes dryer of the present invention.

FIG. 2 is a front view of essential parts showing the configuration of an embodiment of the clothes dryer of the present invention.

[Explanation of symbols]

 1 Clothes dryer main body 2 Drum 4 Double wing fan 10 Laundry inlet 11 Heater 12 Twist plate 13 Hood 14 Hood 15 Drainage port 16 Condensation duct

Claims (3)

[Claims] 1. In a clothes dryer for supplying warm air to a drum for storing clothes to dry clothes, a drum-side outlet of a double-blade fan for exchanging heat between high-temperature and high-humidity inside air and low-temperature outside air. A clothes dryer, wherein a twist plate for swirling high-temperature and high-humidity air is inserted inside a condensation duct provided between a heater and a heater for drying clothes. 2. The clothes dryer according to claim 1, wherein a hood is provided so that an outside air outlet of the double-bladed fan contacts the outside of the condensation duct. 3. The clothes dryer according to claim 1, wherein a hood is provided so that wind generated during the rotation of the drum hits the outside of the condensation duct.