JPH0249119B2 - JOSHITSUSHIKIIRUIKANSOKI - 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.

Conventional Structure and its Problems Conventionally, this type of dehumidifying clothes dryer has a structure as shown in FIG. 1 is an outer frame of the dryer, 2 is a rotating drum rotatably installed in the outer frame 1, and 3 is a back plate that covers the rear of the outer frame. Reference numeral 4 denotes a double-winged fan that generates circulating air 5 and cooling air 6 on both sides of the blade, and causes the circulating air 5 and cooling air 6 to exchange heat through the blade; 7 refers to the circulating air 5;
8 is a vortex chamber for the circulating air 5; 9 is a cooling vortex chamber by bringing the partition wall 10 formed on the outer edge of the rear plate 3 into close contact with the back plate 3;
The cooling vortex chamber serves as a fan case. 1
1 is a circulation duct, 12 is a drain port, 13 is a heater serving as a heat source, and 14 is a motor.

In the above configuration, when the motor 14 rotates and the rotating drum 2 and double-winged fan 4 rotate, circulating air 5 and cooling air 6 are generated, and the circulating air 5 passes through the circulation duct and reaches the heater 13, where it becomes hot air. The air is introduced into the fan 4, exchanges heat with the clothing, and then returns to the fan 4, repeating the cycle. Furthermore, the circulating air 5 and the cooling air 6, which have become high in temperature and humidity, exchange heat with the blades of the fans 4 on both sides, the circulating air 5 is cooled, and the condensed water is drained out of the aircraft through the drain port 12.

In this configuration, as shown in FIG. Air was being taken in from area 16. This configuration has a problem in that wind noise generated by the rotation of the double-wing fans 4 directly leaks out of the aircraft through the intake holes 15 and generates noise. moreover,
Since air is taken in from the rear surface of the back plate 3, when a dehumidifying clothes dryer is used close to a wall, the temperature of the cooling air 6 will rise due to the exhaust of the cooling air 6, leading to problems such as deterioration of dehumidification performance. It was hot.

OBJECTS OF THE INVENTION The present invention solves these conventional problems and provides a dehumidifying clothes dryer that reduces noise and improves dehumidification performance.

Structure of the Invention The dehumidifying clothes dryer of the present invention has an outer frame, a rotating drum, a back plate, both wing fans, and a fan case, and a substantially donut-shaped sound insulating ring is disposed between the wing fans and the back plate. The back plate has a substantially truncated cone-shaped protrusion at the rear, the foot of the protrusion is brought into close contact with the outer periphery of the sound insulation ring, and the ridge of the protrusion is provided with a plurality of cooling air intake holes, With this configuration, wind noise from both wing fans is insulated by the sound insulating plate, reducing noise. Further, by forming the sound insulating plate from a heat insulating material, it is possible to prevent the temperature of the cooling air from rising.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 3 to 5, 17 is an outer frame of the dryer, 18 is a rotary drum rotatably installed within the outer frame 17, and 19 is a back plate that covers the rear of the outer frame. 20 is a double-winged fan that generates circulating air 21 and cooling air 22 on both sides of the blade and causes the circulating air 21 and cooling air 22 to exchange heat through the blade; 23 separates the circulating air 21 and cooling air 22; A partition section 24 is a vortex chamber for the circulating air 21; 25 is a cooling vortex chamber section in which the partition wall 26 formed on the outer edge and the back plate 19 are brought into close contact;
This makes it a fan case. 28 is a circulation duct, 29 is a drain port, and 30 is a heater serving as a heat source.

With the above configuration, when the motor 31 rotates and the rotating drum 18 and double-wing fan 20 rotate, the circulating air 21,
Cooling air 22 is generated, and circulating air 21 is passed through the circulation duct 2.
8, the hot air reaches the heater 30, becomes hot air, is introduced into the rotating drum 18, exchanges heat with the clothes, and then returns to the double-winged fan 20, repeating the cycle. Furthermore, the circulating air 21 and the cooling air 22, which have become hot and humid, exchange heat with the blades of the double-wing fans 20, the circulating air 21 is cooled, and the condensed water is drained out of the machine through the drain port 29.

In this configuration, a substantially donut-shaped sound insulating plate 32 is provided between the double wing fans 20 and the back plate 19. There is an air intake port 33 approximately in the center of the sound insulating plate 32 . Further, the back plate 19 has a substantially truncated cone-shaped convex portion 19a at the rear.
The foot portion 19b is located at the outer peripheral portion 32 of the sound insulating plate 32.
It is in contact with a. Furthermore, the convex portion 19 of the back plate 19
A plurality of intake holes 19d are provided in the ridge portion 19c of a. In the above configuration, the cooling intake path is the intake hole 1
9c, it passes between the back plate 19 and the sound insulating plate 32, and is exhausted from the air inlet 33 of the sound insulating plate 32 to the intake area of both wing fans 20, and the wind noise from the blades of both wing fans 20 is insulated by the sound insulating plate 32. I almost never go out of the plane. In addition, since the intake hole 19d is provided at the ridge 19c of the convex portion 19a of the back plate 19, its area can be made larger than when it is provided only at the approximate center of the back plate 19, and the cooling capacity is improved. It has the effect of In addition, by forming the sound insulating plate 32 with a heat insulating material, the temperature of the cooling air 22 does not rise due to the cooling exhaust 22a after heat exchange with the cooling air 22, and even if the back plate 19 and the wall surface are close to each other, the hygroscopicity is maintained. It won't fall.

Effects of the Invention As is clear from the above embodiments, the dehumidifying clothes dryer of the present invention is particularly advantageous in that a sound insulating plate is provided between both wing fans and the back plate, a convex portion is provided on the back plate, and an air intake is provided at the ridge of the convex portion. By allowing air to be taken in through the hole,
The wind noise from both wing fans was not leaked outside the aircraft, reducing noise, and the air intake hole area was increased, improving dehumidification ability. Furthermore, by forming the sound insulating plate from a heat insulating material, the dehumidifying ability can be improved.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing a conventional dehumidifying clothes dryer, FIG. 2 is a perspective view showing the rear side of the same, and FIG. 3 is a longitudinal cross-sectional view of a dehumidifying clothes dryer showing an embodiment of the present invention. FIG. 4 is a perspective view showing the rear surface, and FIG. 5 is an enlarged sectional view of the main part. 20...Both wing fans, 19...Back plate, 19a...
...Convex portion, 22...Cooling air, 32...Sound insulating plate.

Claims (1)

[Scope of Claims] 1. An outer frame, a rotating drum, a back plate covering the rear of the outer frame, a circulation fan that generates circulating air by circulating air within the rotating drum, and a cooling air provided integrally with the circulation fan. A double-winged fan consisting of a cooling fan for blowing air and exchanging heat between the circulating air and the cooling air, a partition section that partitions the circulating air from the cooling air, and a partition that guides the circulating air generated by the circulating fan to a ventilation path that communicates with the rotating drum. A fan case is provided with a vortex chamber and a partition wall end face formed on the outer edge in close contact with the back plate to serve as a cooling vortex chamber that guides cooling air to the exhaust port of the aircraft body, and between the both wing fans and the back plate, a center a substantially donut-shaped sound insulating ring having a substantially circular air intake port is disposed on the back plate, and the back plate is provided with a substantially truncated cone-shaped convex portion at the rear, and the foot of the convex portion is brought into close contact with the outer periphery of the sound insulating ring; The dehumidifying clothes dryer includes a plurality of cooling air intake holes in the ridge of the convex portion. 2. The dehumidifying clothes dryer according to claim 1, wherein the sound insulation ring is molded from a heat insulating material.