JP3189334B2 - Rotary drum type clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art A conventional rotary drum type clothes dryer will be described with reference to FIGS. 11, 12 and 13. FIG.

The rotating drum 1 has one end supported by a shaft 3 via a metal 2, and the shaft 3 is fixed to an outer frame 5 by a fixing plate 4. The fixing plate 4 is provided with a guide portion 4 a having a hole for communicating the fan case 7 accommodating a heat exchange type fan 6 for circulating air in the rotating drum 1 and the rotating drum 1. The seal 8 was fixed (a detailed configuration diagram is shown in FIG. 12). The other end of the rotary drum 1 is supported by an outer peripheral annular drum support plate 9, and a belt-shaped seal 10 is fixed on the outer peripheral annular portion 9 a of the drum support plate 9.

[0004] 11 is a rotary drum 1 and a heat exchange type fan 6
, A belt for transmitting the rotation of the electric motor 11 to the heat exchange type fan, and a belt 13 for transmitting the rotation of the electric motor 11 to the rotary drum 1. Reference numeral 14 denotes an air tunnel for returning the air blown by the heat exchange type fan 6 to the drum, and 15 denotes a heat source for heating the blown air.

[0005]

According to the present invention, a ring-shaped seal 8 is provided between a rotating drum 1 as a rotating body and a fixed plate 4 as a non-rotating body, and the rotating drum 1 as a rotating body and a non-rotating body. Due to the deformation and dimensional variation of the band-shaped seal 10 with the drum support plate 9 as a body due to aging, water vapor from the clothes in the rotating drum 1 leaks from the seal portion and liquefies in the clothes dryer, and the electric motor 11 and the like However, there is a problem that the internal device is damaged or dripped outside the device.

The present invention has been made to solve the above-mentioned problems, and suppresses the effects of deformation and dimensional variation due to aging, minimizes leakage of water vapor from clothes in the rotating drum 1 from a seal portion, and minimizes the leakage. The purpose is to maintain the state.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a rotating drum type clothes dryer. Are adhered while being movable using a magnet.

[0008]

According to the present invention, the gap between the rotating drum and the non-rotating portion caused by the aging of the rotating drum due to the rotation of the rotating drum and the variation in dimensions is sealed by the magnetic force of the seal to the contact surface of the rotating portion. The leakage of water vapor from the part can be minimized and maintained.

[0009]

An embodiment of the present invention will be described below with reference to the drawings.

First, the structure of a basic rotary drum type clothes dryer will be described below. 1 and 2, reference numeral 1 denotes a rotating drum made of a magnetic material, and reference numeral 2 denotes a metal fixed to the rotating drum 1. 3 is a shaft that supports one end of the drum via the metal 2, 4 is a fixing plate that fixes the shaft 3 to the outer frame 5,
Reference numeral 6 denotes a heat exchange type fan having a function of blowing heated circulating air inside the outer frame 5 and a function of exchanging heat inside and outside the outer frame 5. Reference numeral 7 denotes a fan case for housing the heat exchange type fan 6, which forms a circulation path and a cooling path for the flow of the air discharged from the front and back surfaces of the heat exchange type fan 6. Reference numeral 8 denotes a ring-shaped seal fixed on the fixing plate 4. Reference numeral 9 denotes a drum support plate having an outer peripheral annular portion 9a that supports an end of the rotary drum 1. Reference numeral 10 denotes a band-shaped seal fixed on the outer peripheral annular portion 9a of the drum support plate 9 in an annular shape. 11 is a rotating drum 1
And a motor 12 for rotating the heat exchange fan 6, a belt 12 for transmitting the rotation of the motor 11 to the heat exchange fan 6,
A belt 13 transmits the rotation of the electric motor 11 to the rotating drum 1. Reference numeral 14 denotes a wind tunnel which sends the circulating air blown by the heat exchange type fan 6 into the rotary drum 1.
Has a drain port 14a for discharging water generated by the action of the heat exchange fan 6 in a part thereof. Reference numeral 15 denotes a heat source for heating the blown circulating air, and is disposed near the outlet of the wind tunnel 14.

In the above configuration, the high-temperature and high-humidity circulating air in the rotary drum 1 is heat-exchanged by the heat-exchanging fan 6 and the moisture contained in the circulating air is condensed into water droplets. Is discharged to on the other hand,
The dehumidified circulating air passes through the wind tunnel 14, is heated by the heat source 15, and is again introduced into the rotary drum 1. By repeating the above-described operation cycle, the clothes stored in the rotary drum 1 are dried. Progresses.

Numeral 16 denotes a magnet, which is arranged on the back of the ring-shaped seal 8 and is configured to bring the ring-shaped seal 8 into close contact with the rotating drum 1 made of a magnetic material by magnetic force.

3 and 4 show examples of the configuration of the ring-shaped seal 8. FIG. The magnets 16 arranged on the ring-shaped seal 8 may be arranged on the entire circumference as shown in FIG. 3 or may be arranged uniformly at a certain interval as shown in FIG.

In this embodiment, a ring-shaped seal 8 is
Is shown, but the same configuration can be applied to the case where the ring-shaped seal is fixed to the fixed plate and the case where the ring-shaped seal is fixed to the rotating drum side.

Further, when the ring-shaped seal contact surface of the rotating drum is made of a non-magnetic material, or when the ring-shaped seal contact surface of the fixed plate is made of a non-magnetic material, A magnetic material is arranged on the contact surface with the ring-shaped seal.

In FIG. 5, reference numeral 17 denotes a magnet disposed on the band-shaped seal 10, which is configured to bring the band-shaped seal 10 into close contact with the rotating drum 1 made of a magnetic material by a magnetic force. 6 and 7 show examples of the configuration of the belt-shaped seal 10. The magnets 17 arranged on the band-shaped seal 10 may be arranged on the entire circumference as shown in FIG. 6 or may be arranged uniformly at a certain interval as shown in FIG.

The same configuration can be applied to the case where the band-shaped seal is fixed to the drum supporting plate and the case where the band-shaped seal is fixed to the rotating drum side. In this embodiment, the case where the belt-shaped seal 10 is fixed to the drum support plate 9 is shown.

When the seal contact surface of the rotary drum is made of a non-magnetic material, or when the seal contact surface of the drum support plate is made of a non-magnetic material, the contact surface with the seal is formed. It is assumed that a magnetic material is provided.

As described above, according to the seal of the rotary drum type clothes dryer of the embodiment of the present invention, the magnet 16 is arranged on the ring-shaped seal 8 and the magnet 17 is arranged on the strip-shaped seal 10. In addition, the deformation of the seal due to aging and the influence of dimensional variations can be suppressed, and the contact surface between the seal and the rotating section can be kept in close contact with each other to minimize leakage of water vapor from the seal section and maintain the state. Therefore, it is possible to reduce obstacles due to moisture in the drive unit of the rotary drum type clothes dryer and also to keep the dehumidification rate (recovery rate of water from the clothes in the rotary drum) substantially constant over a long period of time.

Next, another embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. 8, reference numeral 1 denotes a rotating drum made of a magnetic material, 9 denotes a drum supporting plate having an outer peripheral annular portion 9a for supporting the other end of the rotating drum, and 18 denotes a drum supporting plate arranged on the outer peripheral annular portion 9a of the drum supporting plate 9. The seal unit has a three-layer structure including an elastic cushioning material 18a, a magnet 18b, and a seal 18c. The cushioning material 18a side is a fixed surface, and the rotary drum 1 and the seal unit 18 are closely adhered by magnetic force. FIG. 9 shows the seal unit 1.
8 shows a configuration example. That is, the magnet 18b is
a and is arranged between the seal 18c and the seal 18c. FIG.
0 indicates still another embodiment, in which a plurality of magnets 19b are used,
These magnets 19b are connected to the cushioning material 19a and the band-shaped seal 19c.
Are arranged at equal intervals.

In these embodiments, the same configuration can be applied to the case where the seal unit is fixed to the drum support plate and the case where the seal unit is fixed to the rotating drum side.

As described above, the same effect as that of the above embodiment can be obtained by the seal of the rotary drum type clothes dryer of the embodiment of the present invention. In addition, in the following embodiment, the cushioning material 1 is used.
By using 8a and 19a, the rotational vibration of the rotary drum itself is suppressed, and a further effect can be obtained.

[0023]

As is apparent from the above description, according to the present invention, the magnet is arranged on the seal portion between the rotating portion and the non-rotating portion so that the seal stably adheres to the contact surface. The effect of deformation and dimensional variation of the seal due to aging can be suppressed, and the contact surface between the seal and the rotating part can be kept in close contact with each other, so that leakage of water vapor from the seal part can be minimized and that state can be maintained. Therefore, it is possible to reduce obstacles due to moisture in the drive unit of the rotary drum type clothes dryer and also to keep the dehumidification rate substantially constant over a long period of time.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional view of a main part near a ring-shaped seal used in a rotary drum type clothes dryer in an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the rotary drum type clothes dryer.

FIG. 3 is a perspective view of a ring-shaped seal according to the embodiment of the present invention.

FIG. 4 is a perspective view of a ring-shaped seal according to another embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view of a main part near a band-shaped seal used in the rotary drum type clothes dryer.

FIG. 6 is a perspective view of a band-shaped seal according to the embodiment of the present invention.

FIG. 7 is a perspective view of a band-shaped seal according to another embodiment of the present invention.

FIG. 8 is an enlarged sectional view of a main part near a seal unit in another embodiment of the present invention.

FIG. 9 is a plan view of the seal unit.

FIG. 10 is a plan view of a seal unit according to another embodiment.

FIG. 11 is a longitudinal sectional view of a conventional rotary drum type clothes dryer.

FIG. 12 is an enlarged sectional view of a main part near a ring-shaped seal in the rotary drum type clothes dryer.

FIG. 13 is an enlarged sectional view of a main part near another conventional ring-shaped seal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotary drum 3 Shaft 4 Fixed plate 4a Fixed plate guide part 5 Outer frame 6 Blower fan 7 Fan case 8 Ring seal 9 Drum support plate 10 Strip seal 11 Motor 12 Belt 13 Belt 14 Wind tunnel 16 Magnet 17 Magnet 18 Seal unit 19 Seal unit

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06F 58/02 H01F 7/02

Claims (3)

(57) [Claims] An outer frame having an opening for putting in clothes, a rotating drum rotatably provided in the outer frame, a shaft rotatably supporting one end of the rotating drum, and A fixing plate fixed to the outer frame, a drum support plate having an outer peripheral annular portion supporting the other end of the rotary drum,
A blower fan that circulates air in the rotary drum, an electric motor that rotates the rotary drum and the blower fan, and a fan case that houses the blower fan; and a guide that connects the rotary drum and the fan case. Portion, a seal is provided between the guide portion and the rotating drum,
A rotary drum type clothes dryer characterized in that at least a portion of the rotary drum that contacts the seal is made of a magnetic material, and a magnet is arranged on the seal. 2. An outer frame having an opening for putting in clothes, a rotary drum rotatably provided in the outer frame, a shaft rotatably supporting one end of the rotary drum, and A fixing plate fixed to the outer frame, a drum support plate having an outer peripheral annular portion supporting the other end of the rotary drum,
A seal provided on the outer peripheral portion of the drum supporting plate and between the rotary drum, a blower fan for flowing air through the rotary drum, an electric motor for driving and rotating the rotary drum and the blower fan, A rotating drum type clothes dryer, comprising: a fan case for accommodating a fan; at least a portion of the rotating drum that abuts the seal is made of a magnetic material; and a magnet is arranged on the seal. 3. An outer frame having an opening for putting in clothes, a rotating drum rotatably provided in the outer frame, a shaft rotatably supporting one end of the rotating drum, and connecting the shaft to the outer frame. A fixing plate fixed to a frame, a drum support plate having an outer peripheral annular portion that supports the other end of the rotary drum, a blower fan that circulates air in the rotary drum, and an electric motor that drives the rotary drum and the blower fan And a fan case for accommodating the blower fan, wherein at least a portion of the rotary drum abutting on the seal is made of a magnetic material, and a seal between the rotary drum and the drum support plate outer peripheral annular portion. A rotary drum-type clothes dryer provided with a three-layered seal unit in which a magnet is interposed between a cushioning material having elasticity.