JPH1033896A - Clothes dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the falling of dew-condensed waterdrops from the side face of an opening/closing lid by openably and closably providing a ventilation path communicated to the outside of a machine in the circulating ventilation path of a dehumidifying rotary drum type clothes drier and providing a wind direction plate on the opening part of the opening/closing lid capable of performing use as a dehumidifying type at the time of closing it and as an exhaust type at the time of opening it. SOLUTION: In this drier of the exhaust type, a drum 6 and a blower 8 provided with a heat exchanger as well are operated by energizing to an AC motor 11 and a heater 7 and moisture evaporated from clothes is circulated together with circulated air. At the time, outdoor air is made to flow into a cooling side from the back plate intake port 16-1 of a back plate 16 and exhausted from a back plate discharge port 16-2 and the circulated air containing the moisture flowing inside a circulation duct 17 is exhausted from a discharge port 17-2 for which the opening/closing lid 18 is opened to the outside of the machine. Then, the circulated air is dew-condensed by the temperature difference of the circulated air and the outdoor air, and at the time, the circulated air is guided so as to hit only the back surface of the opening/closing lid 18 by the wind direction plate 20 provided in a vertical direction and dew condensation is stuck only to the back surface of the opening/closing lid 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a clothes dryer.

[0002]

2. Description of the Related Art In the past, rotary drum-type clothes dryers in Japan used to be of the tributary type, which had a simple structure and good drying efficiency, but the exhaust type wets all the moisture contained in the clothes into the room. There is a drawback that the room is moist and uncomfortable because the air is exhausted as air, and the walls are moldy due to the humidity.Currently, the humid air is returned to the water with a heat exchanger and drained, and dehumidification that does not emit moisture to the room The type is a tributary. But,
Although the humidity in the room is eliminated, the heat exchanger mounted on the rotating drum type clothes dryer is limited in terms of price and space, and the drying efficiency is inferior to the exhaust type of one generation ago and the drying time It has disadvantages such as long length and high drying cost. As described above, the rotary drum type clothes dryer is limited to either the exhaust type or the dehumidification type, and the rotary drum type clothes dryer of the dehumidification / exhaust switching type utilizing the advantages of the dehumidification and the exhaust type is a dehumidifier. Water leakage from the opening when the exhaust type is switched, and the temperature difference between the outside air outside the machine and the humid air for exhaust in the circulation ventilation path when the exhaust type is used, especially the humid air hits the side of the open / close lid and forms dew. , Falling as water droplets and wet the floor surface. Attachment of a complicated opening and closing mechanism causes problems such as an increase in cost.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to suppress the weak points of the dehumidifying type and the exhaust type, and to make the most of the advantages of the dehumidifying type and the exhaust type. An object of the present invention is to provide a clothes dryer with a simple opening and closing mechanism at a low cost, which is free from electric shock and stains on the floor surface due to the above.

[0004]

In order to achieve the above object, the present invention makes it possible to open and close a ventilation passage leading to the outside of the circulating ventilation passage of a dehumidification type rotating drum type clothes dryer, and to close the ventilation passage to obtain a dehumidification type. A vertically long wind direction plate is provided at the opening of the opening / closing lid which can be used as an exhaust type when opened.

[0005] Since the ventilation passage leading to the outside of the circulating ventilation passage of the dehumidification type rotating drum type clothes dryer can be opened and closed, if the ventilation passage is closed, it is the dehumidification type itself and performs its function. At that time, during the drying operation or at the end of drying, the back side of the opening / closing lid is covered with water droplets, and when switching to the exhaust type, the lid is opened, so that water leaks from the opening / closing lid, but the opening and closing of the opening With the fulcrum of the lid on the lower side, the angle of the open bottom of the open / close lid is less than 90 ° with respect to the main body,
Since the opening / closing lid is box-shaped, it is collected on the back side of the opening / closing lid or returned to the circulation ventilation passage, so that there is no water leakage. In addition, if the ventilation passage leading to the outside of the machine is opened, the pressure in the circulation ventilation passage is higher than that outside the frame (outside air). Therefore, the circulation air in the circulation ventilation passage is exhausted outside the frame (outside air), and only the exhausted air Outside air outside the frame is sucked into the circulation ventilation passage from the place and acts as a discharge type. At that time, water droplets on the side of the open / close lid that fall due to the temperature difference between the outside air outside the frame and the humid air for exhausting in the circulation ventilation path will fall on the floor, but by providing a vertically long wind direction plate at the opening Since the humid air for exhaust in the circulation ventilation passage does not hit the side of the opening / closing lid, no water droplets are attached, and all of the water droplets hit the back of the opening / closing lid, and the opening / closing lid has a box-shaped fulcrum. With the opening and closing lid having an angle of less than 90 ° with respect to the bottom body of the opening and closing lid, it is collected on the back side of the opening and closing lid or returned to the circulation ventilation passage so that water drops do not drop.
Therefore, electric shock due to water leakage of the dehumidifying and exhausting type and dirt on the floor surface and the like are eliminated.

[0006]

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

FIGS. 1, 2, 3 and 4 show the dehumidification,
The structure of the clothes dryer which made drying possible by both types of exhaust is shown.

In FIG. 1, reference numeral 1 denotes an outer frame. Inside the outer frame 1, a drum 6 as a drying chamber is supported by a drum support 13 having a front side attached to a front inner surface of the outer frame 1 and a drum fan supported by a rear side. The body 14 is rotatably supported and installed.

Reference numeral 2 denotes a door which covers the clothes input port 3 and is configured to be openable and closable. Reference numeral 4 denotes a driving operation unit.

Reference numeral 5 denotes a control device comprising a microcomputer for driving and controlling the AC motor 11, the heater 7, and the like.

The AC motor 11 is controlled via a triac, and the heater 7 is controlled via a relay.

Reference numeral 8 denotes a blower (heat exchange fan) for sending hot air generated by the heater 7 into the drum 6, which is a drying chamber.

The blower (heat exchange fan) 8 also has a heat exchanger, and includes a drum belt 9 and a fan belt 10 for rotating the blower (heat exchange fan) 8 and the drum 6 as a drying chamber. Connected to the AC motor 11.

A fan casing 12 is connected to a drum support 13 via a circulation duct 17. An exhaust port 17-leading to the outside of the machine at the front of the circulation duct 17.
The exhaust port 17-2 is provided with an exhaust port filter 19 for preventing dust and insects from entering from outside air, and an opening / closing lid 18 which can be opened and closed manually is provided.

When the clothes dryer constructed as described above is operated, first, the door 2 is opened, clothes which need to be dried are put into the drum 6 which is a drying chamber through the clothes inlet 3, and the door 2 is closed. When drying the clothes after washing in the washing machine, after confirming that the opening / closing lid 18 is closed, the driving operation section 4 is operated.
Switch on.

When the switch is turned on, as shown in FIG. 5, the AC motor 11 and the heater 7 are energized, and a blower (heat exchange fan) 8 having both a drum 6 as a drying chamber and a heat exchanger rotates. Start driving and rotate until drying is completed.

Here, the moisture evaporating from the clothes passes through the lint collecting device 15 together with the circulating wind, flows into the circulation side of the fan casing 12 through the drum exhaust port 6-1 on the rear wall of the drum.

Further, outside air flows into the cooling side of the fan casing 12 from the back plate intake port 16-1 of the back plate 16, and is exhausted from the back plate exhaust port 16-2.

At the outer peripheral portion of the blower (heat exchange fan) 8,
The circulating air and the cooling air are separated by a labyrinth seal portion with the partition plate without entering and exiting. Here, the front and back of the blower (heat exchange fan) 8 between the circulation side and the cooling side of the fan casing 12. The moisture contained in the circulating wind is condensed and becomes water, flows into the circulation duct 17 from the casing discharge port 12-1 of the fan casing 12, and is discharged out of the machine from the drain port 17-1. .

In this manner, a series of drying operations as a dehumidifying type is continued.

Next, a drying operation using an exhaust type will be described.

First, when the door 2 is opened and clothes to be dried are put into the drum 6 through the clothes input port 3, the door 2 is closed, and the door 2 is dried to dry the freshly dried clothes. The switch of the operation unit 4 is turned on.

When the switch is turned on, the AC motor 11 and the heater 7 are energized as shown in FIG. 4, and the blower (heat exchange fan) 8 having both the drum 6 and the heat exchanger starts rotating and starts drying. Drive to rotate.

The moisture evaporating from the clothes passes through the lint collecting device 15 together with the circulating wind, and flows into the circulation side of the fan casing 12 through the drum exhaust port 6-1 on the rear wall of the drum.

Further, outside air flows into the cooling side of the fan casing 12 from the back plate intake port 16-1 of the back plate 16, and is exhausted from the back plate exhaust port 16-2.

In the outer peripheral portion of the blower (heat exchange fan) 8,
The circulating air and the cooling air are separated by a labyrinth seal portion with the partition plate without entering and exiting. Here, the front and back of the blower (heat exchange fan) 8 between the circulation side and the cooling side of the fan casing 12. And a part of the moisture contained in the circulating wind is condensed to become water and flows into the circulation duct 17 from the casing discharge port 12-1 of the fan casing 12, and to the outside through the discharge port 17-1. Is discharged. Most of the moisture contained in the circulating wind is discharged from the exhaust port 17-2 of the circulation duct 17.
It is exhausted further out of the machine. The outside air is sucked in instead of the exhausted air.

Thus, a series of exhaust-type drying operations is performed.

The characteristics of the dehumidifying type and the exhaust type are as follows. When the clothes are dried immediately after washing and dehydration, the clothes contain a lot of moisture. A dehumidification type that does not put out into the room is good. In addition, when drying out dry clothes that have a little moisture remaining after drying outside, even if the air is exhausted to the room because the moisture is very small, the room does not become damp, and in this case, the drying efficiency is good and the drying time is fast. The exhaust type is good. The exhaust type is suitable for drying outdoors (such as a veranda).

FIG. 2 shows the opening / closing lid 1 during the dehumidifying type drying operation.
8 is in a closed state. The back side of the opening / closing lid 18 is an exhaust port 17-2 via an exhaust port filter 19,
Through the exhaust port 17-2, the circulating wind containing moisture flowing in the circulation duct 17 passes during operation. Then, a large amount of water droplets are attached to the circulation duct 17, the inside of the exhaust port 17-2, and the back side of the opening / closing lid 18. When the opening / closing lid 18 is opened as shown in FIG. (Exhaust type operation) The water droplets become large and fall on the floor or the like. However, the opening / closing lid 18 has a box shape,
By providing the support plate 18-1 such that the bottom surface of the opening / closing lid 18 is maintained at an angle of less than 90 ° with respect to the main body, water drops can be collected on the opening / closing lid 18 and fall of the water drops can be prevented. When the fulcrum of the cover 18 is provided below the pin 18-2, and the cover 18 is closed, the water is discharged to the exhaust port 17-2, the circulation duct 17, the drain port 17-1, and the outside of the machine. Therefore, there is no water leakage, and there is no electric shock and no stain on the floor surface.

FIG. 4 shows the open / close lid 18 in the exhaust type drying operation according to the embodiment of the present invention. Opening / closing lid 18
Is opened, the circulating air containing moisture flowing in the circulation duct 17 is exhausted to the outside from the exhaust port 17-2, and outside air is sucked in instead of the exhausted air. You. Due to the temperature difference between the circulating wind and the outside air at that time, the circulating wind containing moisture hits the side and the back of the opening / closing lid 18 to form dew and form water droplets. A support plate 18-1 is provided such that the bottom surface of the lid 18 keeps an angle of less than 90 ° with respect to the main body, water is collected on the box-shaped opening / closing lid 18, and the box-shaped opening / closing lid 18 is moved. After being closed, the water is discharged out of the machine through the exhaust port 17-2, the circulation duct 17, and the drain port 17-1. But,
Water droplets attached to the side surface of the opening / closing lid 18 are not collected as described above, and as time passes, the water drips and falls on the floor or the like. Therefore, the wind direction plate 2 is arranged such that all the circulating wind including moisture flowing through the circulation duct 17 from the exhaust port 17-2 in which the opening / closing lid 18 is open hits the back surface of the opening / closing lid 18.
By providing 0, water droplets formed by condensation are attached only to the back side of the opening / closing lid 18, and the water droplets close the opening / closing lid 18, and the water is discharged to the exhaust port 17-2, the circulation duct 17 and the drain port 17- 1 and discharged outside the machine to prevent water leakage,
Eliminates dirt on the floor.

Thus, when drying, when the clothes contain a large amount of moisture, priority is given to the humidity in the room, and the exhaust port 17-2
When the moisture contained in the clothes is small, the drying efficiency is prioritized, and the exhaust port 17-2 is opened to dry the clothes, so that the advantages of the dehumidifying type and the exhaust type can be fully utilized. There is no electric shock due to leakage, no contamination on the floor surface, etc., and a low-cost and simple opening / closing mechanism can be obtained.

[0032]

According to the present invention, in order to suppress the weak points of the dehumidifying type and the exhaust type, and to make the most of the advantages, the electric shock due to the drop of water droplets condensed from the side of the opening / closing lid of the dehumidifying and exhaust type is reduced. It is possible to provide a clothes dryer having a simple opening / closing mechanism at a low cost with no stain on the floor.

[Brief description of the drawings]

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

FIG. 2 is an explanatory view of an opening / closing lid during a dehumidification type operation according to the embodiment of the present invention.

FIG. 3 is an explanatory view of an opening / closing lid during an exhaust type operation according to the embodiment of the present invention.

FIG. 4 is an explanatory view of a wind direction plate according to the embodiment of the present invention.

FIG. 5 is a flowchart for executing an opening / closing lid according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outer frame, 4 ... Operation part, 18 ... Opening / closing lid, 18-1 ... Support plate, 18-2 ... Pin, 19 ... Exhaust port filter, 20 ... Wind direction board.

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor: Etsio Niimi 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside the Taga Headquarters, Hitachi, Ltd.Electrical Equipment Division

Claims (2)

[Claims] 1. A drying chamber for storing an object to be dried, a heater for heating the drying chamber, a blowing means for flowing hot air heated by the heater into the drying chamber, and a heat exchanger for condensing moisture taken from clothes. The opening / closing opening and the opening / closing lid that can exhaust the circulating air into and out of the machine and the opening / closing lid have a box-shaped fulcrum on the lower side, and the state where the opening / closing lid is opened is an acute angle with respect to the bottom main body of the opening / closing lid. A vertically extending wind direction plate is provided in the opening. 2. The clothes dryer according to claim 1, wherein a plurality of vertically-oriented wind direction plates are provided in a row in the opening.