JPH0362440B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a clothes dryer, and particularly to a clothes dryer that has a suitable exhaust air configuration and dew condensation water treatment.

[Prior art]

The exhaust air from clothes dryers that dry items by blowing warm air onto them in a rotating drum generally has high humidity, and dew condensation may occur on the inner walls of the exhaust air passages, especially in winter when the outside temperature is low.

In other words, in the past, the back cover was also used as an exhaust air passage in order to reduce its width.
Since the camera back is made of iron, cold outside air can cause condensation on the inside. Conventionally, in order to prevent this condensed water from leaking, an absorbent material such as felt was attached to the inside of the camera back cover, the surface of the drum support member, etc. to absorb the condensed water.

However, in this configuration, since the area of the attached felt is constant, the amount of absorption is limited, and it has the disadvantage that it is not a sufficient measure against water leakage.

[Object of the Invention] The present invention eliminates the drawbacks of the prior art as described above, simplifies the configuration of the exhaust air passage, facilitates the collection of condensed water, and eliminates the condensed water inside the machine. The purpose is to provide a clothes dryer that avoids water leakage.

[Summary of the invention]

The clothes dryer according to the present invention has a structure that includes a rotating drum, a heat source, a blower fan, and a motor for driving the rotating drum and the blower fan, in an outer frame in which a clothes input port that can be opened and closed is formed. and a drum support portion located at the rear of the rotating drum and having an opening and attached to the outer frame;
An exhaust air passage for guiding the exhaust air outside the machine is formed between the outer frame and the back plate that is airtight. It is equipped with a condensation reservoir to collect water.

In detail, condensed water is collected in a condensed water reservoir installed close to the exhaust port, which prevents condensed water from leaking into the machine and causing insulation defects in the motor part, and also makes it easy to drain water outside the machine. It was designed to be.

[Embodiments of the invention]

An embodiment of the clothes dryer according to the present invention is shown in the first embodiment.
This will be explained with reference to FIG.

Here, FIG. 1 is a partially opened sectional view of a clothes dryer according to an embodiment of the present invention, and FIG. 2 is a reduced partially opened rear view thereof.

In other words, 1 is an outer frame, 2 is a rotating drum (hereinafter referred to as drum) that stores the items to be dried, 3 is a lifter that stirs the clothes inside the drum 2, and 4 is a front bearing that rotatably supports the front part of the drum 2. It is arranged at an appropriate position on the outer periphery of a drum cover 5 fixed to the front surface of the outer frame 1, and is configured so that the front plate 2a of the drum 2 can slide and rotate.

A door port 1a is attached to the outer frame 1 on the inner circumferential side of the drum cover 5, and forms a clothing inlet into the drum 2.

Further, a door 7 is attached to the front surface of the outer frame 1 so as to be openable and closable so as to cover the clothes slot.
When the door 7 is closed, the door seal 6 attached to the door 7 is configured to abut against the door port 1a.

A semiconductor heater 8 as a heat source is provided between the drum cover 5 and the outer frame 1, and a hot air blowing port 9 into the drum 2 is provided in the drum cover 5 facing the semiconductor heater 8. ing.

On the other hand, a motor 1 is installed at one corner of the outer frame 1.
A drum drive pulley 12 is attached to the shaft 11 of the motor 10, and a tension pulley 1 is installed between the pulley 12 and the drum 2.
A drum driving belt 14 is hung through the belt 3. Further, at the other end of the shaft 11, a pressurizing fan related to a blowing fan for pressurizing the inside of the outer frame 1 is provided. is installed. This air suction port 16 is covered with a filter 17 to prevent dust from entering into the outer frame 1.
Thus, on the rear plate 2b of the drum 2, a filter 18 for collecting lint coming out of the material to be dried that is stirred in the drum 2 is detachably attached to the filter mounting shaft 20 while being protected by the filter guard 19. installed. 21 is the rear plate 2 of the drum 2
b, and is supported by a rear bearing 23.

Further, a drum support member 24 related to the drum support part is fixed to the rear of the drum 2 using the outer periphery of the rear surface of the outer frame 1. Opening 2 for discharging wind
5 and is attached to the rearmost part of the outer frame 1 toward the corner of the outer frame 1, and is configured to maintain an airtight structure with the outer frame 1. 26, the drum support member 2
4, an exhaust duct 30 is arranged to form an exhaust passage 27 in connection with the opening 25 of 4, and the back cover 26 is configured to cover the exhaust duct 30 with an insulating air layer 32 of a certain thickness interposed therebetween. The exhaust duct 30 is made of a material having at least a lower thermal conductivity than steel, such as a synthetic resin material or a waterproof woven fabric.

Therefore, the exhaust duct 30 that connects to the opening 25 of the drum support member 24 and forms the exhaust passage 27, and the back cover 26 that covers the exhaust duct 30 with an insulating air layer of a certain thickness in between. , relating to the exhaust air passage section.

28 is an exhaust hole 24a of the drum support member 24
and an exhaust port 29 provided on the first corner side of the outer frame,
This is a connecting pipe with 29. Since the inside of the outer frame 1 is pressurized by the pressurizing fan 15, in order to prevent air leakage, the unused exhaust port of the exhaust ports 29, 29 is configured to have a lid 31 attached to maintain airtightness. It is something.

A dew condensation water reservoir 33 is formed near the exhaust port 29.

Note that 34 is a timer that controls drying time;
35 is a fixed leg.

Next, the operation of the above configuration will be explained.

Put the material to be dried into the drum 2, close the door 7,
When the timer 34 is set, the motor 10 rotates, and the drum 2 and pressure fan 15 rotate.

As the pressurizing fan 15 rotates, air from outside the machine is sucked into the outer frame 1 through the air inlet 16 through the filter 17.

Since the outer frame 1 has an airtight structure, the entire inside of the outer frame 1 is pressurized by the air sucked in, and due to this pressure, the air passes through the semiconductor heater 8, is heated, and becomes hot air. Air is blown into the drum 2 through the air blowing port 9, and after removing moisture from the material to be dried, it passes through the filter 18, passes through the exhaust passage 27, and is discharged from the exhaust port 29 to the outside of the machine.

In the above, the following effects can be expected from the present embodiment.

(1) The drum support 24 and back cover 26 of the exhaust air duct related to the exhaust air duct configuration are used as they are, and a heat insulating air layer 32 is formed between them and the back cover 26. Since the exhaust duct 30 is arranged in such a manner that the thickness of the simple structure is not increased, it does not hinder the reduction in thickness, and the back cover 26 is made of a steel plate.
The exhaust duct 30 is made of a material with lower thermal conductivity than steel, so even if the back cover 26 is cooled by outside air, the cold temperature will not be transmitted to the exhaust duct 30 due to the presence of the insulating air layer 32. Even if some dew is transmitted, since the exhaust duct 30 is made of the above-mentioned material, there is little conduction to the exhaust duct 30, and as a result, condensation on the inner wall of the exhaust duct 30 can be kept to an extremely low level. .

(2) Since the exhaust port 29 is formed at the bottom of the main body and the condensation water reservoir 33 is formed at the bottom of the exhaust duct 30, moisture condensed on the inner wall of the exhaust duct 30 for the front air collects in the condensation water reservoir 33 due to its own weight. Furthermore, since the direction of the exhaust air is substantially the same as the flow direction of the condensed water, the condensed water can easily be collected in the condensed water reservoir 33 by the pressure of the exhaust air. Therefore, the condensed water is definitely stored in the condensed water reservoir 3.
3, and there is no chance of water leaking into the cabin.

(3) Since the condensation water reservoir 33 is provided close to the exhaust port 29 provided at the lower part of the exhaust air passage, a drainage hose or the like can be connected to the condensation water reservoir 33 via the exhaust port 29. Drainage can be easily carried out by using the exhaust port 29 as it is.

Of course, the condensation water reservoir 33 can be provided at a location away from the exhaust port 29 and used for drainage,
Alternatively, it does not prevent the formation of a separate drainage port, but in this case, the condensation water reservoir 33
When draining the condensed water collected in the machine, a drain hose (not shown) must be installed by making a hole in the body of the machine, such as the back cover 26. In this respect, this embodiment is better. This is something that can be expected to be effective.

〔Effect of the invention〕

According to the present invention, it is possible to provide a clothes dryer that has a simple exhaust air passage configuration, facilitates collection of condensed water, and prevents condensed water from leaking into the machine. Therefore, it can be said that this invention has excellent practical effects.

[Brief explanation of drawings]

FIG. 1 is a partially opened sectional view of a clothes dryer according to an embodiment of the present invention, and FIG. 2 is a reduced partially opened rear view thereof. DESCRIPTION OF SYMBOLS 1... Outer frame, 1a... Door port, 2... Rotating drum, 7... Door, 8... Semiconductor heater, 10
...Motor, 24...Drum support member, 24a...
...Exhaust hole, 25...Opening, 26...Back cover, 27
... Exhaust passage, 28 ... Connection pipe, 29 ... Exhaust port, 30 ... Exhaust duct, 32 ... Insulating air layer,
33... Condensation water puddle.

Claims (1)

[Scope of Claims] 1. A rotating drum, a heat source, a blower fan, and a motor for driving the rotary drum and the blower fan are provided in an outer frame in which a clothes input port is opened and closed. , an exhaust system for guiding exhaust gas to the outside of the machine, between a drum support part that has an opening located at the rear of the rotating drum and is attached to the outer frame, and a back plate that is configured airtight to the outer frame. A clothes dryer comprising an air passage, and a condensation water reservoir provided at the lower part of the exhaust air passage for collecting dew condensed on the inner wall of the exhaust passage. 2. In what is stated in claim 1,
The condensation water reservoir is located in the clothes dryer near the exhaust port at the bottom of the exhaust air duct. 3 In what is stated in claim 1,
The exhaust air passage section is composed of an exhaust duct related to an exhaust passage connected to the opening of the drum support section, and a back cover that covers this exhaust duct with an insulating air layer of a certain thickness. A clothes dryer that has a condensation pool at the bottom. 4 In what is stated in claim 3,
A clothes dryer in which the exhaust duct is made of a material with at least a lower thermal conductivity than steel, and the back cover is made of a steel plate.