JP2024062680A - Clothes Dryer - Google Patents

Abstract

[Problem] To provide a clothes drying device capable of stably emitting infrared rays of a predetermined wavelength from an infrared emitting material. [Solution] This clothes drying device (10) comprises a first heat source for heating air supplied into a drying chamber (35), an air supply passage for supplying heated air into the drying chamber (35), an exhaust passage for discharging air from the drying chamber (35) after it has been used for drying, a blower for circulating air between the inside and outside of the drying chamber (35) through the air supply passage and the exhaust passage, an infrared emitting material (87) provided on at least a portion of the inner surface of the drying chamber (35) and emitting infrared rays when heated, and a second heat source independent of the first heat source and different from the first heat source for heating the portion of the inner surface of the drying chamber (35) where the infrared emitting material (87) is provided, from the outer surface of the drying chamber (35). [Selected Figure] Figure 2

Description

The present invention relates to a clothes drying device.

Conventionally, a clothes drying device is known in which washed clothes (including towels, sheets, etc.) are placed inside a rotating drum, and the clothes are dried by rotating the rotating drum while supplying heated air (warm air for drying) into the rotating drum.

Clothes dryers like the one above that use only heated air to dry clothes can take a long time to dry, especially clothes made of thick denim material. For this reason, clothes dryers have been developed that use infrared rays emitted by heating in addition to heated air to dry clothes.

For example, the following Patent Document 1 describes a clothes dryer that includes a drum for storing clothes, a heater and fan for blowing hot air into the drum, and an electric motor for driving the fan and drum, with a far-infrared ray generating section formed on the inner surface of the drum or on a portion facing the inside of the drum. In addition, a coating containing a material that generates far-infrared rays is formed on the front plate of the drum, which is located near the supply port for heated air, and this forms the far-infrared ray generating section.

Japanese Patent Application Laid-Open No. 63-288196

In the case of the clothes dryer in Patent Document 1, the efficiency of drying using infrared rays is improved by providing a far-infrared ray generating section on the front plate of the drum located near the supply port for the hot drying air, which is the area through which the heated air passes.

The infrared wavelength suitable for drying clothes is determined to a certain extent. Also, in order to radiate infrared rays at a predetermined wavelength from a component that radiates infrared rays (hereinafter referred to as the "radiating component"), it is necessary to heat the radiating component to a predetermined temperature, based on Wien's displacement law and other factors. Therefore, it is desirable to heat the radiating component to a temperature with a small vertical range.

However, the temperature of the heated air in the clothes dryer of Patent Document 1 may rise and fall during the drying process. This makes it difficult to supply heated air with a stable temperature with little vertical variation to the far-infrared radiation generating unit, and it is difficult to stably radiate infrared rays of a specified wavelength from the far-infrared radiation generating unit.

Therefore, the object of the present invention is to provide a clothes dryer that can stably emit infrared rays of a specified wavelength from an infrared emitting material.

To achieve the above object, the present invention provides a clothes drying device for drying clothes stored in a drying chamber, the clothes drying device comprising: a first heat source for heating air supplied into the drying chamber; an air supply passage for supplying air heated by the first heat source into the drying chamber; an exhaust passage for discharging air from the drying chamber after being used for drying; a blower for circulating air between the inside and outside of the drying chamber through the air supply passage and the exhaust passage; an infrared emitting material provided on at least a portion of the inner surface of the drying chamber and emitting infrared rays when heated; and a second heat source independent of the first heat source and different from the first heat source for heating the portion of the inner surface of the drying chamber where the infrared emitting material is provided from the outer surface of the drying chamber.

According to the above invention, a second heat source independent of and different from the first heat source is provided, which heats a portion of the inner surface of the drying chamber where the infrared emitting material is provided from the outer surface of the drying chamber. Therefore, even if the temperature of the air supplied to the drying chamber changes during the drying process, the second heat source independent of and different from the first heat source heats the infrared emitting material, so the infrared emitting material can be stably heated. As a result, infrared rays can be stably radiated from the infrared emitting material.

In the clothes drying device according to the present invention, the second heat source may be an electric heater, and the electric heater may be positioned so as not to come into contact with the air flowing through the air supply passage and the exhaust passage.

According to the above aspect, the electric heater can be prevented from being cooled by the air flowing through the air supply passage and the exhaust passage, so the infrared emitting material can be heated efficiently.

In the clothes drying device according to the present invention, the electric heater may be arranged so as to be in contact with the outer surface of the drying chamber.

According to the above embodiment, the electric heater is arranged so as to be in contact with the outer surface of the drying chamber, so that the distance between the infrared emitting material and the electric heater can be made as close as possible, and the infrared emitting material can be heated more efficiently.

In the clothes drying device according to the present invention, the area of the outer surface of the drying chamber that is in contact with the electric heater may be set to be narrower than the area in which the infrared emitting material is provided.

According to the above aspect, the area of the outer surface of the drying chamber that the electric heater comes into contact with is set to be narrower than the area where the infrared emitting material is provided, so that unnecessary heating of areas of the inner surface of the drying chamber where the infrared emitting material is not provided can be prevented, and the heating efficiency of the infrared emitting material by the second heat source can be improved.

According to the present invention, even if the temperature of the air heated by the first heat source and supplied into the drying chamber through the air supply passage changes during the drying process, the second heat source, which is independent of and different from the first heat source, heats the infrared emitting material, so the infrared emitting material can be stably heated, and infrared rays can be stably radiated from the infrared emitting material.

1 is a perspective view showing an embodiment of a clothes drying device according to the present invention; FIG. FIG. FIG. 2 is a front view of the clothes drying device with the opening and closing body of the main body case removed. 4 is a rear view of the clothes drying device with the rear wall of the main body case removed. FIG. 2 is an enlarged cross-sectional view of a main part taken along the line AA of FIG. 1. 2 is an enlarged cross-sectional view of a main part taken along the line BB of FIG. 1.

(One embodiment of a clothes drying device)
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a clothes drying device according to the present invention will be described with reference to the drawings.

The clothes drying device 10 shown in FIG. 1 dries clothes W stored in a drying chamber 35 as shown in FIG. 2. In the present invention, "clothes" refers to so-called laundry, including towels, sheets, etc.

The clothes drying device 10 also has a first heat source (meaning a gas burner described below) that heats the air supplied into the drying chamber 35, an air supply passage that supplies air heated by the first heat source into the drying chamber 35, an exhaust passage that exhausts the air used for drying from inside the drying chamber 35, and a blower (meaning a blower fan 43 shown in Figures 6 and 7) that circulates air between the inside and outside of the drying chamber 35 through the air supply passage and the exhaust passage.

As shown in FIG. 1, the clothes dryer 10 of this embodiment has a main body case 20.

This main body case 20 is composed of a bottom wall 21, a pair of side walls 22, 22 erected on both sides of the bottom wall 21, a front wall 23 arranged on the front side, a rear wall 24 arranged on the rear side, and a ceiling wall 25 arranged opposite the bottom wall 21.

Furthermore, an exhaust port 27 is formed at a predetermined location on the ceiling wall 25 to exhaust the air used for drying from the drying chamber 35 (see FIG. 2). An exhaust pipe (not shown) is connected to this exhaust port 27. In addition, an opening/closing body 26 is attached to the front wall 23 so that it can be opened and closed, allowing clothes W to be placed into the drying chamber 35.

A rotating drum 30 is rotatably arranged inside the main body case 20. The rotating drum 30 is substantially cylindrical and is installed with its axis of rotation in the horizontal direction. The internal space of the rotating drum 30 forms the drying chamber 35.

The rotating drum 30 is arranged so that the opening on one axial end faces the front wall 23 of the main body case 20, and the opening on the other axial end faces the rear wall 24 of the main body case 20.

Furthermore, a highly reflective paint is applied to the inner surface of the rotating drum 30 to facilitate reflection of the infrared rays radiated into the drying chamber 35 by the infrared emitting material 87 described below.

As shown in FIG. 2, an exhaust passage forming duct 40 is arranged on the bottom wall 21 side of the main body case 20 to form part of the exhaust passage.

Specifically, an exhaust passage forming duct 40 is disposed between the bottom wall 21 of the main body case 20 and the outer peripheral surface of the rotating drum 30 at the radially lower side, and extends substantially horizontally from the front wall 23 side of the main body case 20 toward the rear wall 24 side. Note that the exhaust passage forming duct 40 has an opening at a predetermined portion on the front wall 23 side, and is in communication with the internal space of the drying chamber 35.

In addition, an exhaust passage forming case 41 is disposed on the rear wall 24 side of the main body case 20, extending along the vertical direction of the main body case 20. The lower part of this exhaust passage forming case 41 is in communication with the internal space of the exhaust passage forming duct 40.

Furthermore, a fan case 42 extending along the vertical direction of the main body case 20 is disposed closer to the rear wall 24 of the main body case 20 than the exhaust passage forming case 41. A blower fan 43 is rotatably supported within this fan case 42 via a support shaft 44. The axial direction of the support shaft 44 is horizontal and coincides with the axis of the rotating drum 30.

The fan case 42 is also open at the center of its front side and communicates with the internal space of the exhaust passage forming case 41. An upper portion of the fan case 42 also communicates with the exhaust port 27 via the exhaust port connecting member 45.

Furthermore, a motor 50 is installed inside the main body case 20 to rotate the rotating drum 30 and the blower fan 43.

The motor 50 has a first drive shaft 51 and a second drive shaft 52. The first drive shaft 51 is connected to one axial end of the support shaft 44 of the blower fan 43 via a transmission belt 53. The second drive shaft 52 is connected to the rotating drum 30 via a transmission belt (not shown).

Therefore, when the motor 50 is driven, the rotating drum 30 rotates in a predetermined direction and the blower fan 43 rotates via the support shaft 44.

In addition, the blower fan 43, when rotating, exhausts air from inside the rotating drum 30 and generates an air current that draws air into the rotating drum 30 (see the arrows in Figure 2).

That is, the air in the drying chamber 35 passes through the exhaust passage forming duct 40, the exhaust passage forming case 41, the fan case 42, and the exhaust port connecting member 45, and is exhausted from the exhaust port 27 to the outside of the main body case 20 (the air after being used for drying is discharged to the outside of the case). In other words, the "exhaust passage" in this invention consists of the internal spaces of the exhaust passage forming duct 40, the exhaust passage forming case 41, the fan case 42, and the exhaust port connecting member 45.

Furthermore, the rotating operation of the blower fan 43 also draws heated air through the air supply passage into the rotating drum 30 (this will be described later).

As shown in FIG. 3, a drum support member 60 for supporting the rotating drum 30 is disposed inside the main body case 20, closer to the front wall 23 of the main body case 20 than the exhaust passage forming case 41.

This drum support member 60 has a long plate-shaped main body 61 and a pair of fixing pieces 62, 62 bent and formed on both sides of the width direction of the main body 61. The pair of fixing pieces 62, 62 are fixed to a pair of side walls 22, 22 of the main body case 20, thereby fixing the drum support member 60 to the main body case 20.

The main body 61 of the drum support member 60 has a circular support portion 63 that is circular and has a shaft insertion hole 63a formed in its radial center.

Furthermore, a plurality of notches 64 are formed on the outer periphery of the shaft insertion hole 63a of the circular support part 63. In this embodiment, as shown in FIG. 3, a plurality of notches 64 of various sizes, such as roughly fan-shaped or rectangular, are formed on the left half of the circular support part 63.

As shown in FIG. 3, a combustion chamber 70 and an air supply passage forming duct 73 are arranged on the rear side of the drum support member 60.

Referring to Figures 2, 6, and 7 together, a combustion chamber 70 is disposed on the rear side of the drum support member 60, above the exhaust passage forming case 41. This combustion chamber 70 has multiple air circulation grooves 71 formed on the front and rear sides (see Figures 3 and 5), allowing air around the combustion chamber to be taken into the combustion chamber 70.

A gas burner housing chamber 72 is connected to one side of the combustion chamber 70 in the width direction, and a gas burner (not shown) is housed and arranged in the gas burner housing chamber 72. Gas is sprayed from the gas burner into the combustion chamber 70, heating the air in the combustion chamber 70.

On the other hand, the air supply passage forming duct 73 is a thin-walled box-shaped duct that extends in a semicircular arc shape overall. More specifically, this air supply passage forming duct 73 is composed of a back plate 74 that extends in a substantially semicircular arc shape and a front frame 75 that is disposed opposite the front side of the back plate 74.

The front side of one widthwise side of the combustion chamber 70 is connected to the base end of the rear plate 74 in the extending direction. Furthermore, an air inlet 76 is formed at the base end of the rear plate 74 in the extending direction. Through this air inlet 76, the internal space of the air supply passage forming duct 73 and the internal space of the combustion chamber 70 are connected.

In addition, two air outlets 77, 77 are formed in the front frame 75. These two air outlets 77, 77 are positioned to fit into the multiple cutouts 64 formed in the drum support member 60.

The air heated in the combustion chamber 70 flows into the air supply passage forming duct 73 from the air inlet 76, flows out from the multiple air outlets 77, 77, and passes through the multiple cutouts 64 of the drum support member 60.

The above-described air supply passage forming duct is not limited to a shape extending generally in a semicircular arc as described above, but may be, for example, a horseshoe-like shape in which the parts extending generally in a semicircular arc are arranged symmetrically, and is not particularly limited. In this case, it is preferable that the drum support member, heated air blowing member, etc. have a shape that fits the air supply passage forming duct.

As shown in FIG. 3, a heated air blowing member 80 is provided on the rear side of the rotating drum 30 and on the front side of the drum support member 60, and is arranged so as to cover the opening on the other axial end side of the rotating drum 30.

As shown in Figures 3 and 4, the heated air blowing member 80 is generally circular plate-shaped, and a support portion 81 is provided in the radial center thereof, which is supported by the circular support portion 63 of the main body 61 constituting the drum support member 60.

In addition, a heated air blowing section 82 is provided over a certain range on the radially outer portion of the support section 81.

In this embodiment, as shown in Figure 4, when the heated air blowing member 80 is viewed from the front and the position of the axis C of the rotating drum 30 is taken as the origin, and the heated air blowing section 82 is provided in a range from the circumferential center of the second quadrant to a position in the third quadrant slightly before the fourth quadrant when divided by a horizontal line X and a vertical line Y that pass through the origin. In addition, the heated air blowing section 82 is formed in a mesh hole shape with multiple small diameter circular holes 83 formed therein.

Furthermore, the inner surface 85 (one end surface in the thickness direction) of the heated air blowing member 80 is arranged facing the drying chamber 35. This inner surface 85 forms the inner surface of the drying chamber 35. Moreover, the outer surface 86 (the other end surface in the thickness direction) of the heated air blowing member 80 forms the outer surface of the drying chamber 35.

Furthermore, as shown in FIG. 4, the heated air blowing member 80 has a radially outer portion of the support portion 81, other than the heated air blowing portion 82, from which a plurality of raised portions 84 extend radially from the radial center of the heated air blowing member 80 and are raised to a predetermined height.

As described above, in the clothes drying device 10, when the motor 50 is driven and the blower fan 43 rotates, an air current is generated that draws air into the rotating drum 30.

Therefore, in the combustion chamber 70, air heated by the gas burner (hereinafter simply referred to as "heated air") flows from the air inlet 76 into the air supply passage forming duct 73, is discharged from the air outlet 77, passes through the notch 64 of the drum support member 60, and is supplied to the heated air blowing member 80. The heated air then passes through the heated air blowing section 82 and is supplied (flows) into the drying chamber 35.

In other words, the "air supply passage" in the present invention consists of the internal space of the combustion chamber 70, the air inlet 76, the internal space of the air supply passage forming duct 73, the air outlet 77, the notch 64 of the drum support member 60, and the heated air blowing section 82.

In addition, in this clothes drying device 10, an infrared emitting material 87 that emits infrared rays when heated is provided on at least a portion of the inner surface of the drying chamber 35 (the inner surface 85 of the heated air blowing member 80).

In this embodiment, the infrared emitting material 87 is provided on the entire area of the inner surface 85 of the heated air blowing member 80, including the heated air blowing section 82. The infrared emitting material 87 is also provided on the inner surface of the heated air blowing member 80 in an area that matches at least the area in which the second heat source (electric heater 88) is provided.

Furthermore, in this embodiment, the infrared emitting material 87 is provided by applying paint (preferably paint capable of emitting long-wavelength far-infrared rays) containing a material capable of emitting infrared rays to the inner surface 85 of the heated air blowing member 80. In other words, the concept of the infrared emitting material includes paint.

For example, a heater or sheet capable of emitting infrared rays when heated may be adhered or fixed to the inner surface 85 of the heated air blowing member 80 via adhesive, adhesive tape, fasteners, etc. In this case, the heater or sheet constitutes the "infrared emitting material" of the present invention.

The clothes drying device 10 also has a second heat source that is independent of and different from the first heat source (gas burner) and heats the part of the inner surface of the drying chamber 35 (the inner surface 85 of the heated air blowing member 80) where the infrared radiating material 87 is provided from the outer surface of the drying chamber 35 (the outer surface 86 of the heated air blowing member 80).

In this embodiment, the second heat source is an electric heater 88 that is heated by electricity supplied from a power source (not shown). As shown in FIG. 3, the electric heater 88 in this embodiment is a silicon rubber heater that is in the form of a thin plate and extends in a roughly fan shape. Furthermore, one end face in the thickness direction of the silicon rubber heater is fixed so as to contact the outer surface 86 of the heated air blowing member 80 via an adhesive, adhesive tape, or the like.

When electricity is supplied from a power source (not shown) and the electric heater 88 is heated, the heat of the electric heater 88 is transferred from the outer surface 86 to the inner surface 85 of the heated air blowing member 80. This heat is transferred to the infrared emitting material 87 provided on the inner surface 85 of the heated air blowing member 80, heating the infrared emitting material 87 and radiating infrared rays of a specified wavelength into the drying chamber 35.

The second heat source may be, for example, a sheath heater, a film heater, a planar heater, etc., and is not particularly limited as long as it can heat the drying chamber 35 from the outer surface, is independent of the first heat source, and is different from the first heat source.

In addition, in the present invention, the second heat source being "independent of the first heat source and different from the first heat source" means that the heating means used to heat the air is different from that of the first heat source (in this embodiment, the first heat source is gas and the second heat source is electricity), and that the second heat source is separated from the first heat source and has a different position and layout from that of the first heat source.

In addition, it is preferable that the heated air blowing member 80 is made of a material with high thermal conductivity, such as copper or a copper alloy, taking into consideration the ease of heat transfer from the second heat source to the infrared radiating material 87.

As further shown in FIG. 3, the electric heater 88 is disposed on the outer surface 86 of the heated air blowing member 80, at a location that is generally radially opposed to the heated air blowing portion 82.

More specifically, as shown in FIG. 4, when the heated air blowing member 80 is viewed from the front and the position of the axis C of the rotating drum 30 is taken as the origin, and the area is divided by a horizontal line X and a vertical line Y that pass through the origin, the electric heater 88 is disposed in the range between a raised portion 84 located near the circumferential center of the first quadrant and a raised portion 84 located near the circumferential center of the fourth quadrant.

The electric heater 88 is positioned so that it does not come into contact with the air flowing through the intake and exhaust passages.

That is, as shown in FIG. 2, the electric heater 88 is provided at a position separated from the air supply passage (such as the internal space of the air supply passage forming duct 73) and the exhaust passage (such as the exhaust passage forming duct 40 and the exhaust passage forming case 41), and is configured not to come into contact with the air flowing through both passages.

Furthermore, the electric heater 88 is arranged so as to be in contact with the outer surface of the drying chamber 35. That is, as shown in FIG. 2 and FIG. 7, the electric heater 88 is arranged so as to be in contact with the outer surface 86 of the heated air blowing member 80 that forms the outer surface of the drying chamber 35.

In addition, the area of the outer surface of the drying chamber 35 that the electric heater 88 comes into contact with is set to be narrower than the area in which the infrared emitting material 87 is provided.

In this embodiment, as described above, the infrared emitting material 87 is provided over the entire area of the inner surface 85 of the heated air blowing member 80 that forms the inner surface of the drying chamber 35, whereas the electric heater 88 is configured to contact only a certain area of the outer surface 86 of the heated air blowing member 80 that forms the outer surface of the drying chamber 35 (see FIG. 4).

(Action and Effect)
Next, the operation and effect of the clothes drying apparatus 10 having the above-mentioned configuration will be described.

When using the clothes dryer 10, clothes W are placed in the drying chamber 35 and then the clothes dryer 10 is started. This causes the motor 50 to operate and the rotating drum 30 to rotate. The blower fan 43 also rotates, discharging the air in the rotating drum 30 through the exhaust passage and generating an airflow that draws air into the rotating drum 30 through the air supply passage. Furthermore, the gas burner, which is the first heat source, operates, and the electric heater 88, which is the second heat source, operates.

In the combustion chamber 70, the air heated by the gas burner flows from the air inlet 76 into the air supply passage forming duct 73, is discharged from the air outlet 77, passes through the notch 64 of the drum support member 60, and is supplied to the heated air blowing member 80.

The heated air then passes through the heated air blowing section 82 and is supplied into the drying chamber 35. In addition, heat from the electric heater 88 is transferred from the outer surface 86 to the inner surface 85 of the heated air blowing member 80, heating the infrared emitting material 87, which then radiates infrared rays of a predetermined wavelength into the drying chamber 35. As a result, the clothes W in the drying chamber 35 are dried.

This clothes drying device 10 has a second heat source that is independent of and different from the first heat source, and heats a portion of the inner surface of the drying chamber 35 where the infrared emitting material 87 is provided from the outer surface of the drying chamber 35.

Therefore, even if the temperature of the heated air heated by the first heat source and supplied to the drying chamber 35 through the air supply passage changes during the drying process, the infrared emitting material 87 is heated by a second heat source that is independent of and different from the first heat source, so that the infrared emitting material 87 can be stably heated.

That is, the first heat source heats the air flowing through the air supply passage, and is not capable of directly heating the infrared emitting material 87. In contrast, the second heat source is provided for the purpose of heating the infrared emitting material 87, and is capable of directly heating the infrared emitting material 87 via a route different from that of the first heat source. This makes it possible to stably heat the infrared emitting material 87.

For the above reasons, infrared rays can be radiated stably from the infrared emitting material 87, so the clothes W in the drying chamber 35 can be dried efficiently.

The inner surface 85 (the inner surface of the drying chamber 35) of the heated air blowing member 80, which is arranged to cover the opening at one axial end of the rotating drum 30, is a part to which clothes W do not easily stick and which is also the part in the drying chamber 35 that is most likely to become hot. Furthermore, the inner surface of the rotating drum 30 is coated with a highly reflective paint that makes it easier to reflect infrared rays radiated into the drying chamber 35.

The inner surface 85 of the heated air blowing member 80 as described above is provided with an infrared emitting material 87, and the inner surface of the rotating drum 30 is coated with highly reflective paint, thereby improving the drying efficiency of the clothes W.

In addition, in this embodiment, the second heat source is an electric heater 88, which is positioned so as not to come into contact with the air flowing through the intake passage and exhaust passage.

According to the above embodiment, the electric heater 88 can be prevented from being cooled by the air flowing through the air supply passage and the exhaust passage, so that the infrared emitting material 87 can be heated efficiently.

Furthermore, in this embodiment, the electric heater 88 is positioned so as to be in contact with the outer surface of the drying chamber 35 (the outer surface 86 of the heated air blowing member 80).

According to the above embodiment, the electric heater 88 is arranged so as to be in contact with the outer surface of the drying chamber 35, so that the distance between the infrared emitting material 87 and the electric heater 88 can be made as close as possible, and the infrared emitting material 87 can be heated more efficiently.

In addition, in this embodiment, the area of the outer surface of the drying chamber 35 that the electric heater 88 comes into contact with is set to be narrower than the area in which the infrared emitting material 87 is provided.

According to the above embodiment, the area of the outer surface of the drying chamber 35 that the electric heater 88 comes into contact with is set to be narrower than the area in which the infrared emitting material 87 is provided, so that unnecessary heating of areas of the inner surface of the drying chamber 35 (the inner surface 85 of the heated air blowing member 80) where the infrared emitting material 87 is not provided can be prevented, and the heating efficiency of the second heat source for the infrared emitting material 87 can be improved.

The present invention is not limited to the above-described embodiment, and various modified embodiments are possible within the scope of the present invention, and such embodiments are also included in the scope of the present invention.

10: Clothes drying device, 20: Main body case, 30: Rotating drum, 35: Drying chamber, 40: Exhaust passage forming duct, 50: Motor, 60: Drum support member, 70: Combustion chamber, 80: Heated air blowing member, 87: Infrared radiation material, 88: Electric heater

Claims (4)

A clothes drying device for drying clothes stored in a drying chamber,
A first heat source that heats air supplied into the drying chamber;
an air supply passage for supplying air heated by the first heat source into the drying chamber;
an exhaust passage for discharging air used for drying from within the drying chamber;
a blower that circulates air between the inside and the outside of the drying chamber through the air supply passage and the exhaust passage;
an infrared emitting material provided on at least a portion of an inner surface of the drying chamber and emitting infrared rays when heated;
A clothes drying device characterized by comprising: a second heat source independent of and different from the first heat source, which heats the area of the inner surface of the drying chamber where the infrared emitting material is provided from the outer surface of the drying chamber. the second heat source is an electric heater;
2. The clothes drying apparatus according to claim 1, wherein the electric heater is disposed so as not to come into contact with air flowing through the air supply passage and the air exhaust passage. The clothes drying device according to claim 2, wherein the electric heater is arranged so as to be in contact with the outer surface of the drying chamber. The clothes drying device according to claim 3, wherein the area of the outer surface of the drying chamber that the electric heater comes into contact with is set narrower than the area where the infrared emitting material is provided.

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