JP2679212B2 - Clothes dryer - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a dehumidifying type clothes dryer with low noise.

2. Description of the Related Art A conventional clothes dryer of this type is shown in FIGS. As shown in the figure, the main body 1 of the dryer includes a rotary drum 2 for storing clothes, a back plate 3 for covering the rear surface of the main body 1, a heat exchange fan 4 for heat exchange, a rotary drum 2 and a heat exchange fan 4. It has a driving motor 5. The motor 5 transmits power to the heat exchange fan 4 via the belt 6, a motor cooling hole 8 is provided in a part of the fan case 7 of the heat exchange fan 4, and the back plate 3 has Intake hole 9,
Ten are provided. The intake hole 9 is provided in the back plate 3 on the passage in which the belt 6 is located, and the outside air for cooling for heat exchange is sucked from the intake hole 9 to be discharged from the motor cooling hole 8 into the main body 1. Further, a part of the cooling air a of the motor 5 is prevented from being sucked again through the belt 6.

That is, by creating an intake flow of outside air in the intake hole 9 part, it becomes difficult for part of the cooling air a of the motor 5 to wrap around the belt 6 part, and as a result, re-intake of the cooling air a is prevented. This enhances the heat exchange efficiency of the heat exchange fan 4.

In such a conventional clothes dryer, the re-intake of the cooling air a can be prevented by creating an intake flow of the outside air in the intake hole 9 portion, but from the intake hole 9 the main body of the dryer can be prevented. The sound generated in No. 1 leaked out and caused noise.

The present invention has solved the above-mentioned conventional problems, and an object thereof is to provide a clothes dryer in which a sound generated in the main body of the dryer is prevented from leaking out of the main body by a simple structure. To do.

Means for Solving the Problems In order to achieve the above object, a clothes dryer of the present invention comprises:
Between the back plate that covers the rear surface of the dryer main body and the heat exchange fan side, part of the passage where the belt that transfers the motor power to the heat exchange fan is cut off to separate the motor side from the heat exchange fan side. It is provided with a separating part.

Operation With the above configuration, the sound generated inside the dryer main body is blocked by the separation unit that separates the motor side and the heat exchange fan side, and leakage to the outside of the dryer main body is reduced. It is what is done.

An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 3, 11 is a main body of the dryer,
Reference numeral 12 is a rotary drum rotatably provided in the main body 11, 13 is a door for putting an object to be dried in the rotary drum 12, 14 is a heat exchange fan having both functions of blowing air and heat exchange, and this heat exchange A flexible seal material 15 having a substantially ring shape and a V-shaped cross section is fixed to the outer peripheral portion of the fan 14. 16 is a heat exchange fan 14
A motor for rotating the, 17 is a back plate that covers the rear surface of the main body 11, 18
Is a partition wall that forms air passages for air flow on both sides of the heat exchange fan 14, and encloses the heat exchange fan 14 together with the fan contact plate 19 to form a casing having the spiral chamber 20. Reference numeral 21 is a circulating wind tunnel that guides hot and humid drying air to the heater 22, 23 is an exhaust hole for discharging the inhaled cooling air, and 24 is a drain port for discharging dehumidified water to the outside of the main body. 25 is a belt for transmitting the power of the motor 16 to the heat exchange fan 14, 26 is a motor cooling hole provided in a part of the casing 7, 27 is a passage for the belt 25 between the back plate 17 and the fan contact plate 19. A separation part that partially shuts off and separates the motor 16 side and the heat exchange fan 14 side,
In this embodiment, the belt 25 is integrally formed so as to project from the back plate 17. Reference numeral 28 is an intake hole provided in the back plate 17.
In the figure, a and b represent drying air and cooling air, respectively, and c represents motor cooling air.

In the clothes dryer, when the motor 16 rotates and the heat exchange fan 14 rotates, air flows a and b are generated, and the hot and humid drying air that has dried the material to be dried is the heat exchange fan.
The blades of 14 are cooled by cooling air and dehumidified. The dehumidified drying air is heated by the heater 22 and blown into the rotary drum 12 again to dry the clothes. Of course,
At this time, the rotary drum 12 also rotates by receiving power from the motor 16. In addition, a part of the cooling air is discharged from the motor cooling hole 26 to cool the motor 16 and other cooling members.

In the case of the clothes dryer, the separating portion 27 that separates the motor side and the heat exchange fan side makes it difficult for part of the motor cooling air c to wrap around the belt 25 portion, and as a result, re-intake of the cooling air c is prevented. There is. This is because the sound generated in the main body 1 such as the sliding sound generated by the rotation of the rotary drum 12 and the wind noise generated by the rotation of the heat exchange fan 14 is generated by the belt 25.
The sound leaking through the portion is also blocked by the separating unit 27, and the leaking out of the main body 11 of the dryer is reduced. Since the separating portion 27 can prevent re-intake of the motor cooling air c, the intake hole (9 in FIG. 4) in the conventional example is not particularly necessary, and the intake hole is eliminated as in the embodiment. In the thing, the sound leaking from it disappears at all. Specifically, the noise level on the rear surface of the main body 11 was reduced from 51 dB to 50 dB, and a noise reduction of 1 dB was achieved. Also, the noise level on the right side (left side in FIG. 2) toward the main body 11 was changed from 47 dB to 46.5 dB, and the noise level was reduced by 0.5 dB. Further, even when the main body 11 is actually installed, the sound reflected from the wall on the rear surface of the main body is reduced, so that a large noise reduction can be achieved as a whole.

Here, an example in which all the intake holes on the passage of the belt 25 of the back plate 17 are eliminated has been described, but the intake holes may be provided at the position of the back surface 17 of the separating unit 27 opposite to the motor. It is a thing. Further, regarding the configuration of the separating portion 27 that separates the motor 16 side and the heat exchange fan 14 side, the fan contact plate 19
There are various conceivable methods such as a method of providing a protruding portion in the passage of the belt 25 from the side and a method of newly providing another member, and the present invention is not limited to the configuration of the embodiment.

EFFECTS OF THE INVENTION As described above, in the clothes dryer of the present invention, between the back plate and the heat exchanging fan side, the passage in which the belt for transmitting the power of the motor to the heat exchanging fan is partially cut off is provided. With the simple structure of providing the separation part for separating the heat exchange fan side, it is possible to prevent re-intake of the motor cooling air from the passage of the belt, and at the same time reduce the leakage of the sound generated in the main body. As a result, a clothes dryer with low noise and high heat exchange efficiency can be provided.

[Brief description of the drawings]

1 is a side sectional view showing a schematic configuration of a clothes dryer according to an embodiment of the present invention, FIG. 2 is a front view of a back plate of the clothes dryer, and FIG. 3 is a line AA in FIG. 4 is an enlarged sectional view, FIG. 4 is a side sectional view showing a schematic configuration of a conventional clothes dryer, and FIG. 5 is a front view of the back plate. 11 …… Main body, 12 …… Rotating drum, 14 …… Heat exchange fan,
16 …… Motor, 17 …… Back plate, 25 …… Belt, 27 …… Separator.

Claims (1)

(57) [Claims] 1. A main body of a dryer, a rotary drum rotatably provided in the main body, a heat exchange fan provided at a rear portion of the rotary drum and having a function of exchanging air and heat, and the rotary drum and the heat. A motor that drives an exchange fan and a back plate that covers the rear surface of the main body are provided, and a separating portion that projects between the back plate and the heat exchange fan side and between the belts is provided to heat-exchange the power of the motor. A clothes dryer having a structure in which the motor side and the heat exchange fan side are separated by partially blocking the passage where the belt for transmitting to the fan is located.