JPH0994387A - Clothes gas drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the dispersion of a hot blast temperature, to efficiently supply hot blast by gas combustion to be supplied to a rotary drum to the inside of the rotary drum, to prevent the discoloration and deformation, etc., of dried clothes, to reduce the temperature rise of the surface of a drier main body, to secure safety, to prevent drying irregularity and to expand the various kinds of drying functions such as the drying of delicate clothes. SOLUTION: In this clothes gas drier, a ventilation louver 10 is provided on the opposite surface of the suction direction of the hot blast sucked from a heating means in the middle of the hot blast route of a wind tunnel 9 for guiding the hot blast to the inside of the rotary drum 1, a baffle plate for spreading the hot blast is disposed in the flowing direction of the blast sucked from the ventilation louver 10 and an air accumulation part is formed at the upper part of the hot blast route of the wind tunnel 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas clothes dryer for supplying clothes with hot air generated by combustion of gas to dry clothes.

[0002]

2. Description of the Related Art Conventionally, a gas clothes dryer puts clothes in a rotary drum and passes hot air generated by gas combustion through the clothes while rolling and stirring the clothes to dry clothes which are wet by washing or the like. However, in order to guide the hot air heated by the gas combustion to the rotary drum, the burner for performing the gas combustion and the hot air suction port of the rotary drum are connected from the wind tunnel 2.

[0003]

However, in the conventional structure, the temperature of the hot air supplied into the rotary drum tends to vary. In other words, the hot air from the burner is drawn from the inlet of the wind tunnel and rises along the wall of the wind tunnel, and there is the one that directly passes the shortest distance and moves to the inlet of the rotating drum. The target temperature is low, and the latter becomes a very hot gas heated by gas combustion. Therefore, there is a problem in that the temperature of the hot air blown from the suction port of the rotary drum, which contributes to the drying of the clothes, tends to vary and uneven drying of the clothes occurs.

Therefore, the first object of the present invention is to reduce the unevenness in the drying of clothes by eliminating the variation in the temperature of the hot air due to the combustion of the gas supplied to the rotary drum.

The second object is to improve the drying efficiency by equalizing the hot air temperature distribution in the rotary drum.

A third object is that the hot air temperature distribution depending on the amount of combustion of the gas supplied to the rotary drum and the hot air temperature distribution depending on the amount of dry clothes can be kept uniform, and the hot air is always stable. To feed into the rotary drum.

[0007]

A first means for achieving the first object of the present invention is a rotating drum for rolling and stirring clothes, a blowing means for sending warm air into the rotating drum, and a rotating means. Heating means for supplying hot air by combustion of gas into the drum,
A motor for rotating the rotating drum or the blowing means,
A wind tunnel that guides hot and warm air into the rotary drum is provided, and the wind tunnel is composed of a hot air path that guides the hot air heated by the heating means toward the rotary drum and a hot air supply port that supplies this hot air to the rotary drum. At least one ventilation louver is provided in the middle of the hot air supply path so as to face the hot air suction direction from the heating means. Further, the ventilation louvers are arranged in a longitudinal direction orthogonal to the flow of the hot air, and further, the ventilation louvers are provided in the hot air path and on the surface not facing the hot air supply port.

A second means for achieving the second object is, in addition to the above-mentioned first means, a baffle plate for hot air diffusion at a position in the flow direction of the wind sucked from the ventilation louver of the wind tunnel. It is arranged.

The third means for achieving the third object is to rotate the clothes by rotating the rotating drum, blowing means for sending warm air into the rotating drum, and combustion of gas in the rotating drum. The heating means for supplying the hot air, the motor for rotationally driving the rotary drum or the air blowing means, and the wind tunnel for guiding the hot hot air into the rotary drum are provided, and the wind tunnel directs the hot air heated by the heating means toward the rotary drum. The hot air path to be guided and the hot air supply port for supplying the hot air to the rotary drum are provided, and the hot air path of the wind tunnel is provided with an air reservoir above the hot air supply port to the rotary drum.

[0010]

According to the present invention, because of the above-mentioned first means, a ventilation louver is provided in the hot air path of the wind tunnel for guiding the warm air into the rotary drum so as to face the hot air blowing direction of the heating means for gas combustion. The hot air from the combustion heating means is mixed with the cold air in the fuselage sucked from the ventilation louvers provided on the opposite side in the hot air blowing direction to become hot hot air, and then supplied into the rotary drum. Furthermore, the flow of cold air from the ventilation louver mixes the hot air in the hot air path to generate a turbulent flow, which has a uniform temperature distribution, so that the air passing through the clothes to be dried has no temperature unevenness, and the clothes have uneven drying. Etc. can be prevented in advance. Further, since the ventilation louver is provided on the opposite side in the hot air blowing direction, the inner surface of the outer frame of the main body, which is close to the ventilation louver, generates convection due to the action of sucking the cool air in the airframe. To cool. Therefore, the temperature rise on the surface of the main body caused by the radiant heat of gas combustion is reduced. In addition, since the ventilation louver is configured to have an opening in a direction substantially perpendicular to the flow of the hot air, the cool air inside the machine body is smoothly and efficiently taken in, and mixing with the hot air is promoted. Furthermore, by not providing the opening on the surface facing the hot air supply port,
The cold air can be prevented from being discharged into the rotary drum from the hot air supply port without being mixed with the hot air, and the uniform hot air can be supplied.

Since the baffle for diffusing the hot air is arranged at the position in the flow direction of the cool air from the ventilation louver of the wind tunnel by the second means, the hot air from the heating means for gas combustion is the hot air. It is diffused by the diffusion baffle to make the temperature distribution of the hot air uniform, and the hot air is supplied into the rotating drum without temperature unevenness.
That is, the hot air from the heating means for gas combustion is supplied to the dried clothes as a well-balanced hot air with a uniform hot air temperature distribution, and partial drying unevenness can be eliminated and good drying efficiency can be obtained. Since it is possible to prevent the generation of high temperature hot air locally, it is possible to dry delicate clothes.

According to the third means, the hot air path of the wind tunnel is provided with an air trap portion above the hot air supply port so that the hot air from the gas combustion heating means can stay in the air trap portion. ing. In general, since the air having a high temperature rises, the hot air heated by the heating means for gas combustion temporarily stays in this air reservoir and is supplied to the rotary drum after reaching an appropriate temperature. Especially, in order to dry the delicate clothes, if the air volume is suppressed and the rotation speed of the rotating drum is reduced to operate at low speed, the hot air from the gas combustion heating means will not be sufficiently mixed with the cold air and will be applied to the rotating drum. It can be prevented from being supplied. Further, even in the case of normal drying, by relaxing the hot air temperature by the air reservoir, the hot air temperature distribution depending on the amount of combustion of the gas supplied to the rotary drum and the hot air temperature distribution depending on the amount of dry clothes are It is possible to prevent variations in temperature distribution so that there is no difference between the two. Therefore, stable hot air can always be supplied into the rotary drum, and operation can be performed when adjusting the amount and type of dry clothes and the amount of gas burned, and various drying functions can be developed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the rotary drum 1 is rotatably supported on the rear surface of the dryer main body 2 and is slidably supported on the outer peripheral flange portion of the annular drum front support plate 3 on the front surface.
It is rotationally driven by the motor 4 and the drum belt 5.
An air blower fan 6 is arranged behind the rotary drum 1, the rotation of the motor 4 is transmitted to the fan belt 7, and the combustion air of a heat source portion such as a burner 8 as a heating unit is rotated.
The air is blown inside. Reference numeral 9 is a wind tunnel that guides hot air into the rotary drum 1, and a heat source unit 8 is provided in the hot air path of the wind tunnel 9.
A plurality of ventilation louvers 10 are provided opposite to each other in the suction direction A of the hot air sucked in from.

With this configuration, as shown in FIG. 2, the hot air heated and blown by the heat source portion 8 is guided to the wind tunnel 9 and sucks the cool air C in the body from the ventilation louver 10, and the cold air and the hot air are mixed and heated. It becomes wind and is supplied into the rotary drum 1 from the hot air supply port 13. Therefore, the air passing through the clothes to be dried becomes uniform hot air, and the clothes do not come into contact with the locally high temperature hot air, and are dried more softly, causing discoloration, deformation or uneven drying of clothes due to heat. Prevent it in advance.

Further, as shown in FIG. 3, the ventilation louver 10 is arranged in a longitudinal direction substantially orthogonal to the flow of the hot air sucked from the heat source portion 8 into the wind tunnel 9 to cool the cool air C in the body. It has a shape that allows smooth and efficient suction. Further, the cold air C and the hot air heated by the heat source unit 8 are mixed to create a uniform hot and warm air. At this time, the ventilation louver 10 is used to make the hot air flow efficient and sufficient. It is not provided at the position of the surface facing the supply port 13. That is, when the ventilation louver 10 is provided at this position, the cold air C to be mixed is generated.
However, if it is sucked in, it is discharged from the hot air supply port 13 to the rotary drum 1, which is a disadvantage.

Further, since the cool air C is sucked from the ventilation louver 10, the inner surface portion 1 of the main body 2 near the ventilation louver 10 is closed.
A flow of cold air is generated at 1 due to the action of sucking the cool air in the airframe. The inner surface portion 11 is cooled by this flow of cold air, the temperature rise of the main body surface generated by the radiant heat of gas combustion is reduced, and safety such as redness can be secured.

A hot air diffusion baffle plate 12 is provided at a position of the ventilation louver 10 in the air flow direction B of the wind tunnel 9 so as to block and diffuse the air flow. The baffle plate 12 for hot air diffusion is paired with the ventilation louver 10, but the cooling air C sucked from the ventilation louver 10 and the hot air heated by the heat source part 8 are reliably and efficiently mixed with each other depending on the flow state of the hot air. The shape does not matter as long as it can be performed.

With this structure, the hot air from the heat source section 8 is diffused by the hot air diffusion baffle plate 12 and the temperature distribution of the entire hot air discharged from the hot air supply port 13 to the rotary drum 1 is made uniform, so that the high temperature hot air is locally generated. Is supplied to the rotary drum 1 in good balance without the occurrence of Then, the hot air having a uniform hot air temperature distribution can be passed through the clothes to be dried, partial drying unevenness of the clothes can be eliminated, and good drying efficiency can be obtained, and further, local To prevent the generation of high temperature hot air, it is possible to dry clothes that are delicate to the temperature.

Further, as shown in FIG. 4, an air reservoir 14 is arranged in the hot air path of the wind tunnel 9 above the hot air supply port 13 in the rotary drum 1. The hot air supply port 13 is formed by providing a plurality of hot air ports 15 on an arc on the front surface of the annular drum front support plate 3. The air reservoir portion 14 is arranged above the hot air supply port 13 and is provided at an upper portion at a position along an arc shape in the rotation direction D of the rotary drum 1. The hot air supply port 15 forming the hot air supply port 13 is not provided in the air reservoir 14, and is not directly discharged from here to the rotary drum 1, but is formed as a hot air retention part.

In general, since the air having a high temperature rises, the hot air heated by the heat source section 8 once stays in the air pool section 14 due to the above-mentioned structure, and after it is heated to an appropriate temperature by further mixing and heat radiation, It is supplied into the rotary drum 1. In particular, in order to dry the delicate clothes, when the air volume is suppressed and the rotation speed of the rotating drum 1 is reduced to operate at low speed, the hot air from the heat source 8 is not sufficiently mixed with the cold air C and is applied to the rotating drum. It is possible to prevent the hot hot air being supplied from being locally discharged. Further, even in the case of normal drying, the hot air from the heat source unit 8 can be once retained by the staying action of the hot air and the hot air that has been rapidly introduced can be relaxed by radiating heat, etc., due to the above configuration. Therefore, since the drying is started, it is possible to prevent the high-temperature hot air generated when the burner is ignited from being supplied to the rotary drum 1 as it is, and further, during the drying, the user tries to shorten the drying time by using the gas. It is possible to make the hot air temperature distribution uniform depending on the amount of gas combustion, such as direct supply of high-temperature hot air generated by increasing the amount of combustion to the rotary drum 1. Further, depending on the size of the clothes to be dried and the cloth quality of the clothes to be dried, the change of the hot air supply amount by adjusting the rotation speed of the rotary drum 1 and the variation of the hot air temperature distribution caused by the adjustment of the gas combustion amount are caused. It can be kept to a minimum.

Therefore, by providing this air reservoir 14, it is possible to always supply stable hot air having a uniform temperature distribution to the rotary drum 1 in any setting of the drying process, and to dry clothes. It is possible to operate while adjusting the amount and type of gas and the amount of gas combustion, and to develop various drying functions. The configuration having the air reservoir 14 can sufficiently achieve the purpose even in the configuration having no ventilation louver.

[0023]

As described above, according to the present invention, by forming the ventilation louver provided in the hot air path of the wind tunnel for guiding the hot air into the rotary drum, the ventilation louver is provided opposite to the hot air blowing direction from the heating means. It is possible to prevent unevenness and the like, and further reduce the temperature rise on the surface of the main body due to the radiant heat of gas combustion.

Further, according to the present invention, the hot air diffusion baffle plate is arranged at a position in the flow direction of the ventilation louver of the wind tunnel so that the hot air from the heating means is dried as a well-balanced hot air having an equalized hot air temperature distribution. By supplying it to clothes and eliminating partial drying unevenness to obtain good performance of drying efficiency, and further, to prevent generation of high temperature hot air locally, delicate clothes can be dried.

Further, according to the present invention, by disposing the air reservoir above the hot air supply port in the rotary drum, it is possible to prevent the temperature distribution from varying due to the amount of gas combustion and the amount of dry clothes. , Can always supply a stable hot air into the rotating drum, the amount and type of dry clothes,
Operation can be performed when adjusting the amount of gas combustion, and various drying functions can be developed.

[Brief description of drawings]

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

FIG. 2 is a view on arrow X in FIG.

3A is a sectional view taken along the line YY of FIG. 2B.

FIG. 4 is an exploded perspective view of essential parts of the clothes dryer.

[Explanation of symbols]

 8 Heat Source Section (Heating Means) 9 Wind Tunnel 10 Ventilation Louver 12 Hot Air Diffusing Baffle Plate 13 Hot Air Supply Port 14 Air Reservoir Section 15 Hot Air Port

Claims (5)

[Claims] 1. A rotating drum that rolls and stirs clothes, a blowing unit that sends warm air into the rotating drum, a heating unit that supplies hot air by burning gas into the rotating drum, and a rotating drum or a blowing unit. A motor for driving and a wind tunnel for guiding hot and hot air into the rotary drum are provided, and the wind tunnel has a hot air path for guiding the hot air heated by the heating means toward the rotary drum and a hot air supply port for supplying the hot air to the rotary drum. And a gas clothes dryer in which at least one ventilation louver is provided in the hot air path on the opposite side in the hot air suction direction from the heating means. 2. The gas clothes dryer according to claim 1, wherein the ventilation louvers are arranged in a longitudinal direction orthogonal to the flow of hot air. 3. The gas clothes dryer according to claim 1, wherein the ventilation louver is provided in the hot air path and on a surface not facing the hot air supply port. 4. The gas clothes dryer according to claim 1, wherein a baffle plate for diffusing hot air is provided at a position in the flow direction of the wind sucked from the ventilation louver. 5. A rotary drum for rolling and stirring clothes, a blowing means for feeding warm air into the rotating drum, a heating means for feeding hot air by burning gas into the rotating drum, and a rotating drum or a blowing means. A motor for driving and a wind tunnel for guiding hot and hot air into the rotary drum are provided, and the wind tunnel has a hot air path for guiding the hot air heated by the heating means toward the rotary drum and a hot air supply port for supplying the hot air to the rotary drum. A gas clothes dryer having a hot air path of the wind tunnel, and an air trap portion arranged above the hot air supply port to the rotating drum.