JPS628200B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clothes dryer, and more particularly, the present invention includes a drying drum that stores moist clothes and rotates in an outer frame container, a heating element, and an air blower to blow outside air. The present invention relates to a clothes dryer that dries clothes by feeding heated air into the drying drum.

In conventional clothes dryers of this kind, outside air is first heated by a heating element in the outer frame container to create heated air, and this heated air is sent to the drying drum by a blower device. The stored moisture-containing clothing is dried, and the air after the drying operation is discharged to the outside of the outer frame container. Therefore, the internal pressure of the entire outer frame container increases due to the air heated by the heating element, causing a leakage of the heated air, resulting in a leakage of heat and a large heat loss.Moreover, it is necessary to prevent the leakage of the heated air. Since the structure uses a packing material for the purpose, it has the disadvantage that it is difficult to make the outer frame container thinner.

SUMMARY OF THE INVENTION An object of the present invention is to provide a clothes dryer that eliminates the above drawbacks, has good thermal efficiency, and allows the outer frame container to be made thinner.

The present invention includes an outer frame container having an entrance door on the front side, a drying drum that stores moist clothing and rotates, a heating element, and an air blower, and which blows outside air sucked from outside the outer frame container. , in a clothes dryer in which heated air is sent to the drying drum and after drying the clothes, the moist air is discharged to the outside of the outer frame container through a filter, the heating element is fed into the drying drum by the heated air. The apparatus is characterized in that it is installed close to the hole, and the outside air sucked by the blower is brought into contact with the heating element to be converted into heated air and immediately sent into the drying drum.

In this structure, heated air generated by heating by the heating element is sent to the drying drum without leaking outside the main part, and furthermore, the front bearing of the drying drum is provided with cooling air. The front bearing is equipped with a structure that prevents the front bearing from overheating by blowing air.

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 is a side sectional view of a clothes dryer according to an embodiment of the present invention, FIG. 2 is a back view with the rear panel and drying drum removed, and FIG. 3 is a detailed view of the front bearing section. FIG. 4 shows the fixed state of the heating element terminal, and a is a front view and b is a side view. In these figures, 1 is the front cover, 2 is the entrance door, 3 is the drying drum, 4 is the door boat, 5 is the heated air inlet hole of the drying drum 3, 6 is the drum cover, and 7 is the drying drum 3. A front bearing that supports rotation, 8 a sheathed heater as a heating element, 9 an introduction gap for heating air, 10 a timer for drying operation, 12 a tension pulley, 13 a pulley, 14 a blower fan of an air blower, 15 is a belt, 16 is a humid air discharge part, 17 is an outer frame base, 18 is an outer frame, 19 is a filter, 20 is a shaft of the drying drum 3, 21 is a rear bearing thereof, and 23 is a drive shaft. Electric motor, 24 is the rear beam, 25 is the rear panel, 26 is the intake port, 2
7 is an exhaust port, 30 is a heater support, 31 is a heater terminal, 32 is its fixing metal fitting, 33 is an elastic support, 34 is a cooling air blowing hole, 35 is a notch in the drum cover 6, 36 is the space inside the outer frame container.

That is, the front cover 1 of the outer frame container, which is airtightly formed by the front cover 1, the outer frame base 17, the outer frame 18, and the rear panel 25, has an entrance door 2 for loading moist clothing that can be opened and closed. Moisture-containing clothing put in through the entrance door 2 is stored in the provided outer frame container, and the rear shaft 20 is supported by a rear bearing 21 and the front part is supported by a front bearing 7. 23, a drying drum 3 that rotates via a pulley 13, a tension pulley 12, and a belt 15, a sheathed heater 8 as a heating element, and a blower device having a blower fan 14 directly connected to an electric motor 23. The outside air sucked in from outside the container through the intake port 26 is brought into contact with the sheathed heater 8 and heated, and then sent as heated air to the drying drum 3, while drying the moisture-containing clothes stored in the drying drum 3. This is a clothes dryer that discharges the moisture-absorbed air through a filter 19, a discharge part 16, and an exhaust port 27 to the outside of the outer frame container.
The drum cover 6 is integrally formed and is provided adjacent to the heated air inlet hole 5.

Then, the outside air sucked by the blower fan 14 of the blower is heated by the sheathed heater 8 introduced from the introduction gap 9, and thermally expanded to produce pressurized heated air immediately from the heated air inlet 5 to the drying drum. Send within 3 days. In this case, the heated air does not leak because the drum cover 6 is integrally molded, and therefore, the moist clothing can be dried with thermal efficiency.

Note that this structure is based on the front bearing 7 of the drying drum 3.
is designed to prevent it from overheating.

That is, as shown in FIG.
A plurality of cooling air blowing holes 34 are provided in the upper part of the drum cover 6 near the drum cover 6, and the outside air sucked in by the blower fan 14 is passed through the outer frame container inner space 36 in the direction of arrow B.
By spraying the front bearing 7 from the spray hole 34 as shown in FIG. 3, it is possible to prevent the front bearing 7 from being overheated and extend its service life. Arrow A indicates the direction of inflow of suction outside air supplied for heating air.

The sheathed heater 8 has a main body supported by a heater support 30, a heater terminal 31 supported by a fixing metal fitting 32, and each is detachably installed on the drum cover 6 using screws.
Replacement operations can be easily performed.

As explained above, according to the present invention, the heating element is installed close to the heated air inlet of the drying drum, and the generated heated air can be immediately fed into the drying drum without leaking, thereby improving thermal efficiency. In addition, there is no need to use packing material to prevent heated air from leaking from the outer frame container as in the past, which simplifies the structure and makes it possible to make the outer frame thinner. It can be effective. Since the bearing is cooled, overheating of the bearing can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a clothes dryer according to an embodiment of the present invention, FIG. 2 is a back view with the rear panel and drying drum removed, and FIG. 3 is a detailed view of the front bearing section. FIG. 4 shows the fixed state of the heating element terminal, and a is a front view and b is a side view. 1...Front cover, 2...Entrance door, 3...Drying drum, 5...Heated air inlet hole, 6...Drum cover, 7
...front bearing, 8...sheathed heater, 14...blow fan, 17...outer frame base, 18...outer frame, 23...rear bearing, 34...blow hole.

Claims (1)

[Scope of Claims] 1. An outer frame container having an entrance door on the front surface, a drying drum that stores moist clothing and rotates within the outer frame container, a heating element, and an air blower, The outside air sucked from outside the outer frame container is sent to the drying drum as heated air, and after drying the clothes, the heated air is discharged outside the outer frame container through a filter, A body is installed close to the heated air inlet hole of the drying drum, and the outside air sucked by the blower is brought into contact with the heating element and turned into heated air, which is immediately introduced into the drying drum and placed on the drum cover. A clothes dryer characterized in that the front bearing of the drum is provided with a cooling air blowing hole for blowing outside air sucked in from a blower.