JPH09285694A - Clothes dryer - Google Patents

Abstract

(57) Abstract: In a clothes dryer for supplying warm air to a rotating drum that is driven to rotate by a motor to dry clothes, the airtightness with the rotating drum is improved, and high temperature inside the rotating drum is achieved. Prevents deterioration of the seal due to hot air, prevents high-temperature hot air from leaking inside the rotary drum, and permanently secures dehumidifying performance and drying performance without extending the drying time. SOLUTION: A rotary drum 1 is rotatably arranged in an outer frame 5, an intake hole 12a communicating with the rotary drum 1 is provided in a substantially central portion of a fan case 12, and an outer periphery of the intake hole 12a of the fan case 12 is provided. A substantially cylindrical seal 18 is fixed to.
The seal 18 is formed by impregnating the outer surface of the nonwoven fabric 18a with a flexible and heat-resistant silicone rubber 18b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer for supplying warm air into a rotating drum which is driven by a motor to dry clothes.

[0002]

2. Description of the Related Art Conventionally, this type of clothes dryer has been constructed as shown in FIGS. Hereinafter, the configuration will be described.

As shown in FIG. 4, a rotary drum 1 is for storing clothes, stirring and drying them. The front is supported by a drum front plate 2 and the rear is supported by a shaft 4 fixed to a shaft support plate 3. Then, it is rotatably arranged in the outer frame 5. The shaft support plate 3 is attached to the outer frame 5. The heater 6 is housed in a heater cover 7, and the opening of the heater cover 7 is communicated with the hole 2a of the drum front plate 2.

The double-sided fan 8 includes a cooling air 9 and a circulation duct 1.
It has a function of sending heat to the circulating air 11 that circulates through 0 and has a function of blowing air, and is housed in the fan case 12. The motor 13 rotationally drives the rotary drum 1 and the double-blade fan 8. Drum belt 14 and fan belt 15
Are for driving the rotary drum 1 and the double-sided fan 8, respectively, and are made of resin. As shown in FIG. 5, the seal 16 is formed of a non-woven fabric such as felt, and is fixed to the outer periphery of the air intake hole 12a provided at the substantially central portion of the fan case 12 to hermetically seal the rotary drum 1 and the fan case 12. It is in communication.

To explain the operation of the above configuration, when the motor 13 rotates, the rotating drum 1 and the double-blade fan 8 rotate by the drum belt 14 and the fan belt 15. When the double-blade fan 8 rotates, cooling air 9 and circulating air 11 are generated, and the circulating air 11 reaches the heater 6 via the circulation duct 10, is heated by the heater 6 and is introduced into the rotary drum 1, and clothes are A flow of drying and returning to the both-wing fan 8 again is formed. On the other hand, the steam of the circulating air 11 that has become hot and humid by exchanging heat with the clothes is absorbed by the double-bladed fan 8
At that time, heat is exchanged with the cooling air 9 to become condensed water, and the condensed water is drained to the outside of the outer frame 5 through the drainage port 17.

[0006]

In such a conventional clothes dryer, the seal 16 is formed only from a non-woven fabric such as felt, and since the non-woven fabric has air permeability, the airtightness with the rotary drum 1 is reduced. In addition, since the nonwoven fabric is poor in elasticity, airtightness with the rotary drum 1 is poor, and the seal 1 is heated by the hot hot air in the rotary drum 1 in proportion to the operating time.
6 deteriorated, the durability was low, and the sealing performance was deteriorated, so that hot hot air in the rotary drum 1 leaked and the drying time was extended.

Further, due to the deterioration of the sealing performance, the steam in the rotary drum 1 leaks, the dehumidification amount decreases, and the leaked steam causes high humidity inside the machine to cause rust.

The present invention solves the above problems and improves the airtightness with the rotary drum and prevents deterioration of the seal due to high temperature hot air in the rotary drum to prevent leakage of high temperature hot air in the rotary drum. However, the purpose is to permanently secure dehumidifying performance and drying performance without extending the drying time.

[0009]

In the clothes dryer of the present invention, a rotary drum is rotatably arranged in an outer frame, and an intake hole communicating with the rotary drum is provided in a substantially central portion of the fan case. A substantially cylindrical seal is fixed to the outer periphery of the intake hole of the fan case, and the seal is obtained by impregnating the outer surface of the nonwoven fabric with a material having flexibility and heat resistance.

As a result, the airtightness with the rotary drum can be improved, and the deterioration of the seal due to the high temperature hot air in the rotary drum can be prevented, the leakage of the high temperature hot air in the rotary drum can be prevented, and the drying time can be reduced. It is possible to permanently secure dehumidification performance and drying performance without extending.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION
A rotary drum rotatably arranged in an outer frame, a fan case having an intake hole communicating with the rotary drum at a substantially central portion, and a rotary drum and a fan case fixed to the outer periphery of the intake hole of the fan case. And a substantially cylindrical seal for airtightly communicating with each other, wherein the seal is obtained by impregnating the outer surface of the nonwoven fabric with a material having flexibility and heat resistance,
The seal can add airtightness, elasticity, and heat resistance by impregnating the outer surface of the non-woven fabric with a substance having flexibility and heat resistance. The airtightness with the rotating drum is improved, and the elasticity of the substance impregnated into the nonwoven fabric is added to improve the airtightness of the sealing surface with the rotating drum. By adding the heat resistance of the substance, it is possible to prevent the deterioration of the seal due to the high temperature hot air in the rotating drum in proportion to the operating time, and due to the deterioration of the sealing performance, the high temperature hot air in the rotating drum leaks and the drying time It is possible to prevent the extension.

Further, it is possible to prevent the steam in the rotary drum from leaking due to the deterioration of the sealing performance, the amount of dehumidification to decrease, and the leaking steam to cause high humidity inside the machine and to generate rust.

[0013]

An embodiment of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIGS. 1 and 2, a substantially cylindrical seal 18 is provided on the outer periphery of the intake hole 12a provided at the substantially central portion of the fan case 12, and this seal 18 is a nonwoven fabric as shown in FIG. Silicone rubber 18b on the outer surface of 18a
Is impregnated. Other configurations are the same as the conventional example.

The operation of the above structure will be described. Since the silicone rubber 18b has flexibility and heat resistance, the nonwoven fabric 18a is impregnated with the silicone rubber 18b to add airtightness, elasticity and heat resistance. Is completed,
The breathability of the non-woven fabric 18a can be stopped, the airtightness with the rotating drum 1 is improved, and the elasticity of the silicone rubber 18b is added to the non-woven fabric 18a, so that the sealing surface with the rotating drum 1 is airtight. Can be improved.

Further, the non-woven fabric 18a has a silicone rubber 18
By adding the heat resistance of b, it is possible to prevent the deterioration of the seal 18 due to the high temperature hot air in the rotary drum 1 proportional to the operating time, and due to the deterioration of the sealing performance, the high temperature hot air in the rotary drum 1 leaks and dries. It is possible to prevent the time from being extended. Further, it is possible to prevent the steam in the rotary drum 1 from leaking due to the deterioration of the sealing performance, the dehumidification amount to decrease, and the leaking steam to cause high humidity inside the machine to generate rust.

Although silicone rubber is used as the material having flexibility and heat resistance in the above embodiment,
It is also possible to use styrene synthetic rubber, nitrile synthetic rubber, and other organic rubbers. However, silicone rubber is suitable because of its high heat resistance and chemical stability.

Further, in an exhaust type dryer using a radial fan instead of the double-blade fan 8, a material having flexibility and heat resistance on the outer surface of the non-woven fabric on the sealing surface of the rotary drum 1 and the fan case 12. The seal 18 impregnated with the silicone rubber may be provided.

[0019]

As described above, according to the invention described in claim 1 of the present invention, the rotary drum rotatably arranged in the outer frame and the intake hole communicating with the rotary drum are provided in the substantially central portion. The fan case is provided, and a substantially cylindrical seal that is fixed to the outer periphery of the intake hole of the fan case and airtightly connects the rotary drum and the fan case is provided. The seal is flexible on the outer surface of the nonwoven fabric. Since the material is impregnated with a substance having heat resistance and heat resistance, the seal can be added with airtightness, elasticity, and heat resistance by impregnating the outer surface of the nonwoven fabric with a substance having flexibility and heat resistance. The breathability of the non-woven fabric can be stopped with a substance that has been impregnated, improving the airtightness with the rotating drum, and the elasticity of the substance impregnated into the non-woven fabric adds airtightness to the sealing surface with the rotating drum. Can improve Also, by adding the heat resistance of the substance impregnated into the non-woven fabric, it is possible to prevent the deterioration of the seal due to the high temperature hot air in the rotating drum in proportion to the operating time. Can be secured permanently without leaking and extending the drying time.

Further, it is possible to prevent the steam in the rotary drum from leaking due to the deterioration of the sealing performance to reduce the dehumidification amount, and to prevent the leaked steam from causing high humidity inside the machine to generate rust.
Dehumidification performance and durability can be ensured permanently.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a clothes dryer according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of essential parts of the clothes dryer.

FIG. 3 is an enlarged sectional view of a main part of the clothes dryer.

FIG. 4 is a vertical sectional view of a conventional clothes dryer.

FIG. 5 is an enlarged sectional view of a main part of the clothes dryer.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 rotating drum 5 outer frame 12 fan case 12a air intake hole 18 seal 18a non-woven fabric 18b silicone rubber (material having flexibility and heat resistance)

Claims (1)

[Claims] 1. A rotary drum rotatably disposed in an outer frame, a fan case having an intake hole communicating with the rotary drum at a substantially central portion, and a fan case fixed to an outer periphery of the intake hole of the fan case. A clothes dryer, comprising a substantially cylindrical seal for air-tightly connecting the rotating drum and the fan case, the seal having the outer surface of the nonwoven fabric impregnated with a material having flexibility and heat resistance.