KR100651900B1 - Dryer - Google Patents

Abstract

A clothing dryer is provided to improve the drying performance of the laundry and reduce the drying time by supplying the hot blast at the front of the laundry and increasing the contacted time and area of the laundry with hot blast. A clothing dryer comprises: a cylindrical tub horizontally supported in a body(100); a drum(110) rotatably installed in the tub and perforated with plural holes at the surface; a rear support installed at the rear of the drum to rotatably support the drum; a hot blast supply duct(130) whose one end is combined at the rear support to supply the hot blast into the drum; a main path(112) in which the hot blast is directly supplied from the duct into the duct; and a sub path(114) for supplying the hot blast into the drum through the holes after the hot blast is flowed between the drum and the tub. The rear support contains first and second rear supports(191,193) for supporting the rear ends of the drum and the tub.

Description

Clothes Dryer {Dryer}

1 is an exploded perspective view showing an example of a conventional exhaust clothes dryer

Figure 2a is a side cross-sectional view showing a clothes dryer according to the first embodiment of the present invention

FIG. 2B is a front view of the first rear supporter in the clothes dryer shown in FIG. 2A

FIG. 2C is a front view of a second rear supporter in the clothes dryer shown in FIG. 2A

Figure 3a is a side cross-sectional view showing a clothes dryer according to a second embodiment of the present invention

FIG. 3B is a front view of the rear supporter in the clothes dryer shown in FIG. 3A

4 is a side sectional view showing a clothes dryer according to a third embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

100: body 107: front supporter

108: inlet 110: drum

11: through-hole 112: main euro

13: Tub 114: Sub Euro

120: heater chamber 121: heater

130: hot air supply duct 131: hot air discharge unit

140: door 150: sterilization lamp

160: motor 162: belt

170: exhaust duct 175: lint filter

180: blower 191: the first rear supporter

192: first hot air inlet 193: second rear supporter

194: 2nd hot air inlet

The present invention relates to a clothes dryer, and more particularly, to a clothes dryer having improved drying performance and a sterilization function of a drying object.

In general, the clothes dryer refers to a device for drying a drying object through a series of processes by forcibly supplying hot dry air to the wet drying object in the drum.

The clothes dryer as described above is divided into an exhaust type and a condensation type clothes dryer according to a method of treating humid air generated in a drying process of a drying object.

The exhaust clothes dryer supplies air to dry the clothes and discharges the humid air discharged from the drum to the outside of the dryer, and the condensation clothes dryer condenses the humid air discharged from the drum in the condenser After the removal, dry air is fed back into the drum and recycled.

On the other hand, Figure 1 is an exploded perspective view of the internal configuration of a clothes dryer according to an example of the conventional clothes dryer of the conventional clothes dryer as described above.

As shown, the exhaust type clothes dryer is rotatably installed to receive the driving force of the motor 16 is installed inside the main body is a drum (1) is drying is accommodated to be dried. The drum 1 is formed in a cylindrical shape in which the front and rear sides are opened, and a belt groove 2 around which a belt (not shown) is wound to transmit the rotational force of the motor 16 to the drum 1 is formed along the middle of the outer circumferential surface thereof. Formed.

On the inner side of the drum 1, a plurality of lifters 6 are formed on the inner surface of the drum 1 to turn over and drop the object to be dried, thereby increasing the drying efficiency.

In addition, a front support 7 and a rear support 9 for supporting the front and rear ends of the drum 1 are provided to correspond to the front and rear ends of the drum 1, respectively.

The front supporter 7 and the rear supporter 9 have a circular stepped portion corresponding to the end shape of the drum 1.

In addition, a sealing member 10 is installed between the front supporter 7 and the rotating drum 1 and between the rear supporter 9 and the rotating drum 1 to prevent leakage.

Of course, the front supporter 7 and the rear supporter 9 are provided with a plurality of rollers 5 for supporting the drum 1 at corresponding positions of the front and rear of the drum 1, respectively.

On the other hand, the front supporter (7) is formed with an inlet (8) for communicating the drum 1 and the outside so that the drying object can be put into or taken out of the drum (1). The inlet 8 is selectively opened and closed by a door (not shown).

A hot air supply duct 12 is installed between the rear supporter 9 and the back cover 30 to serve as a passage for supplying hot air to the drum 1.

In addition, the rear supporter 9 is provided with a hot air inlet (9a) in which the hot air discharge portion (12a) for supplying the hot air from the hot air supply duct 12 to the drum (1) is formed, the drum (1) And hot air supply duct 12 to communicate with each other.

The back cover 30 is formed with a concave seating portion 31 on which the hot air supply duct 12 and the rear supporter 9 are seated, and outside air flows into the dryer in one region of the seating portion 31. Intake louvers 32 of the inlet shape is introduced.

In addition, an outlet assembly 13 is provided below the front supporter 7, which is a part through which the wet air escapes from the drum 1. In addition, a lint filter 14 is installed inside the outlet assembly 13.

The lint filter 14 serves to filter foreign matter (for example, seams or dust) mixed in the wet air discharged from the drum 1.

Meanwhile, a lint duct 15 is installed to communicate with the outlet assembly 13, and the lint filter 14 is positioned to the inside of the lint duct 15.

The blower 17 is installed by being connected to the lint duct 15 to suck air in the drum 1 through the lint duct 15. The blower 17 is coupled to the shaft of the motor 16, and a blower housing 18 is installed to receive the blower 17.

One side of the blower housing 18 communicates with the lint duct 15, and an exhaust pipe 19 is connected to the other side. The exhaust pipe 19 is coupled to the outlet 33 formed on one side of the back cover 30, and communicates with the outside of the clothes dryer.

Therefore, the air exiting the drum 1 and passing through the lint duct 15 is exhausted to the outside of the clothes dryer through the exhaust pipe 19 by the blowing action of the blower 17.

On the other hand, the heater chamber 20 is connected to the inlet side of the hot air supply duct 12. The heater chamber 20 serves to guide the air heated by a heater (not shown) installed therein toward the inlet of the hot air supply duct 12.

Referring to the operation of the conventional clothes dryer configured as described above is as follows.

After putting the object to be dried in the drum 1 and closing the door, pressing the operation button, while the power is applied to the motor 16, the belt (not shown) wound around the belt groove 2 is driven and the drum 1 ) Will rotate.

And while the blower 17 is operated, the air in the drum 1 is sucked into the lint duct 15 to be forced to the exhaust pipe 19.

When the wet air of the drum 1 flows toward the exhaust pipe 19 as described above, external air heated by the heater through the hot air supply duct 12 into the drum 1 due to the pressure difference Inflow.

That is, the outside air introduced through the suction louver 32 of the back cover 30 is introduced into the heater chamber 20 and heated while passing through the heater to be introduced into the hot air supply duct 12 to the drum. (1) It is supplied internally.

As described above, the hot air introduced into the drum 1 heats and dries the object to be dried in the drum 1, and the hot air absorbs moisture contained in the object to be dried.

In addition, the humid air inside the drum 1 is discharged from the drum 1 through the outlet assembly 13 by the suction force of the blower 17. Then, foreign matter such as dust or seams contained in the wet air passing through the outlet assembly 13 is filtered while passing through the lint filter 14.

In addition, the wet air passing through the lint filter 14 is discharged to the outside of the dryer through an exhaust hole 33 formed in the bag cover 30 through the exhaust pipe 19 by the blowing action of the blower 17.

However, the above-described conventional clothes dryer has the following problems.

In the conventional clothes dryer, hot air is supplied in one direction through one hot air inlet (9a) formed behind the drum (1). Therefore, in the conventional clothes dryer, there is a problem that hot air is not evenly supplied to the drying object and the drum 1, and the drying efficiency is lowered, thereby causing a long drying time.

In particular, in the case of drying a small amount of the drying object, the drying object frequently comes into close contact with the wall of the drum 1, in which case the drying efficiency is further lowered.

Meanwhile, in the conventional clothes dryer, a method of sterilizing a dry object is provided by supplying hot air to the dry object, and there is a limitation in heating the dry object for sterilization due to problems such as damage to the cloth, thereby completely drying the dry object. It is difficult to sterilize and there is a problem that the sterilization effect is lowered.

The present invention is to solve the above-mentioned problems, an object of the present invention is to improve the drying performance by supplying hot air to the entire surface of the drum through a drum through a plurality of through holes, and through the UV sterilization lamp UV light to the object to be dried It is to provide a clothes dryer to increase the sterilization efficiency.

In order to achieve the above object, the present invention is a cylindrical tub that is horizontally supported inside the main body; A drum rotatably installed in the tub and having a plurality of through holes formed on the surface of the tub; A rear supporter installed at the rear of the drum to rotatably support the drum; A hot air supply duct having one end coupled to the rear supporter and supplying hot air into the drum; A main flow passage through which hot air is supplied directly into the drum from the hot air supply duct; It provides a clothes dryer comprising a sub-flow path for supplying hot air into the drum through the through hole of the drum after the hot air flows from the hot air supply duct between the drum and the tub.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

The same components as in the prior art are given the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

2A to 2C, a clothes dryer according to a first embodiment of the present invention will be described as follows.

The clothes dryer according to the present embodiment includes a cylindrical tub 113 horizontally supported inside the main body 100, a drum 110 rotatably supported inside the tub 113, and the drum 113. A motor 160 for rotating, a hot air supply duct 130 for supplying hot air to the drum 113, a heater chamber 120, and an exhaust duct for exhausting wet air discharged from the drum 110 to the outside of the dryer ( 170).

The drum 110 is formed in a cylindrical shape with both ends opened, and a plurality of through-holes 111 to which hot air is supplied are perforated on the surface thereof. In addition, a belt 162 transmitting the driving force of the motor 160 is coupled around the outer circumferential surface of the drum 110.

The drum 110 is installed at a predetermined distance from the tub 113 to allow hot air to flow between the outer circumferential surface of the drum 110 and the inner surface of the tub 113.

On the other hand, the tub 113 is preferably heat-insulated to prevent the heat leakage to the outside through the tub 113 because the hot air passes through the inside.

In addition, the front and rear ends of the drum 110 and the tub 113 are provided with front supporters 107 and rear supporters 191 and 193, respectively.

The front supporter 107 is coupled to the drum 110 and the tub 113 at the same time, and in particular supports the drum 110 to be rotatable.

In addition, the front supporter 107 is formed with an inlet 108 which communicates with the drum 110 and the outside and is selectively opened and closed by the door 140.

On the lower side of the front supporter 107 is provided an exhaust duct 170 through which the wet air escapes from the drum 110. One end of the exhaust duct 170 is in communication with the drum 110, and the other end is in communication with the outside of the clothes dryer.

In addition, the foreign matter (for example, seams or dust) mixed in the wet air discharged from the drum 110 in a portion where the exhaust duct 170 corresponding to the inlet of the exhaust duct 170 and the drum 110 communicate. The lint filter 175 for filtering the filter is installed.

In addition, a blower 180 for sucking air in the drum 110 is installed in the pipe of the exhaust duct 170.

The rear supporters 191 and 193 are roughly divided into a first rear supporter 191 coupled to the drum 110 and a second rear supporter 193 coupled to the tub 113.

The drum 110 and the tub 113 are installed at regular intervals to allow hot air to flow therebetween, as well as the side, so that the drum 110 and the tub 113 as shown in FIG. It is preferable to combine each rear supporter formed of a separate object.

The first and second rear supporters 191 and 193 will be described with reference to FIGS. 2B and 2C as follows.

The first rear supporter 191 and the second rear supporter 193 may have circular stepped portions so as to correspond to end shapes of the drum 110 and the tub 113, respectively.

In particular, the first rear supporter 191 supports the drum 110 so as to be rotatable, but the first rear supporter 191 itself is installed so as not to rotate. In addition, the first rear supporter 191 may be provided with a roller (not shown) for rotatably supporting the drum 110. Here, the roller also serves to support the drum 110 and the tub 113 to maintain a predetermined gap.

Alternatively, the first rear supporter 191 may fix the first rear supporter 191 and prevent the drum 110 from knocking or vibrating in one direction. Is preferably fixed. For example, as illustrated in FIG. 2B, the surfaces of the first rear supporter 191 and the second rear supporter 193 are interposed between the first rear supporter 191 and the second rear supporter 193. Forming a structure that couples the, or may be fastened with a bolt or the like to form a boss. In the case of forming the structure as described above, the first rear supporter 191 is fixed and not only supports the drum 110, but also a gap between the first rear supporter 191 and the second rear supporter 193. It also serves as a spacer for maintaining the flow path through which air can be introduced between the drum 110 and the tub 113 can be secured / maintained.

In addition, the second rear supporter 193 is fixedly installed to support the tub 113 at the rear end of the tub 113, and one end of the hot air supply duct 130 is coupled thereto.

Specifically, the second rear supporter 193 is formed with a second hot air inlet 194 on which the hot air discharge portion 131 of the hot air supply duct 130 is seated. The drum 110 communicates with the inside.

In addition, hot air supplied from the hot air supply duct 130 is introduced into the drum 110 in correspondence to the second hot air inlet 194 of the second rear supporter 193 to the first rear supporter 191. The first hot air inlet 192 is formed to guide.

Meanwhile, unlike the present embodiment, an embodiment in which the second rear supporter 193 is integrally formed with the tub 113 may be understood.

Hereinafter, a flow path of hot air supplied from the hot air supply duct 130 to the drum 110 through the hot air inlet 194 and discharged toward the exhaust duct 170 is referred to as a main flow path 112. The sub-channel 114 provides a flow path supplied between the drum 110 and the tub 113 by the hot air supply duct 130 and then supplied into the drum 110 through the through hole 111 of the drum 110. It is called.

Therefore, a part of the hot air is supplied from the hot air supply duct 130 between the first rear supporter 191 and the second rear supporter 193, so that a part of the hot air is a first hot air inlet of the first rear supporter 191 ( Passed through the 192 to the main flow path 112, the rest flows into the sub-flow path 114 between the tub 113 and the drum 110.

That is, the first rear supporter 191 and the second rear supporter 193 not only support the rear ends of the tub 113 and the drum 110 but also provide hot air to the main flow passage 115 and the sub flow passage 114. It also serves as a guide to.

Here, since most of the hot air supplied into the drum 110 is supplied through the main flow path 112, a large amount of hot air flows quickly in the main flow path 112. In comparison, the hot air supplied through the sub-channel 114 flows at a relatively low speed.

The hot air supplied through the sub flow passage 114 is combined with the hot air flowing along the main flow passage 112 inside the drum 110 to flow along the main flow passage 112, thereby It is discharged to the outside through the exhaust duct 170 coupled to the front lower portion.

Therefore, as the drum 110 rotates, the object to be dried in the drum 110 rises to a certain height and then stirs while repeating tumbling that free-falls. In this tumbling process, the main flow path 112 is mixed. The hot air flowing along heats the drying object to evaporate the moisture, thereby discharging the evaporated moisture through the exhaust duct 170.

The hot air supplied through the sub flow passage 114 has a long contact time with the object to be dried as the speed is slow. In addition, since the through hole 111 is formed on the entire surface of the drum 110, the hot air supplied through the sub flow path 114 is supplied through the entire surface of the drum 110, and thus a drying object is supplied to the drum. The adhesion to the 110 is prevented, and the drying efficiency is significantly improved by increasing the area of the drying object in contact with the hot air.

On the other hand, the drum 110 is installed with a sterilization device for sterilizing by irradiating ultraviolet rays to the drying target.

The sterilizing apparatus may be a sterilizing lamp 150 installed at an upper end of the first rear supporter 191 to irradiate ultraviolet rays into the drum 110. Of course, although not shown, the sterilization device is installed in the sterilization lamp 150, which is a light source for irradiating ultraviolet rays, and components such as a light tube, a ballast, a reflector, a lamp cover and a holder which are attached to the sterilization lamp 150 together. Can be.

Here, the sterilization lamp 150 is irradiated with ultraviolet rays of 250 ~ 260nm wavelength band (particularly, 253.7nm wavelength) having a strong sterilization effect, so that the sterilization of the drying object can be efficiently performed.

In addition, the sterilizing lamp 150 irradiates the drying object with ultraviolet rays evenly, and when the drum 110 and the drying object rotate, the sterilizing lamp 150 is interrupted by the drying object, so that the sterilizing lamp 150 It is preferable to be installed in the position which does not block the ultraviolet-ray to irradiate.

That is, since the drum 110 is rotated, the sterilization lamp 150 may be installed to face the drum 110 in the fixed first rear supporter 191. In particular, in order not to interfere with the ultraviolet rays emitted from the germicidal lamp 150 by the drying object, it will be effective to install the upper portion rather than the lower portion of the rear supporter 191.

In addition, since the ultraviolet rays irradiated from the germicidal lamp 150 are ultraviolet rays in a relatively harmful wavelength, the germicidal lamp 150 is irradiated with ultraviolet rays to prevent the ultraviolet rays from being directly irradiated to the user. Or the main body 100 is blocked by the wall and is installed so as not to directly contact the user.

For example, when the sterilization lamp 150 is installed in the upper end of the rear in the drum 110, the ultraviolet rays irradiated from the sterilization lamp 150 evenly irradiated into the drum 110, the drum Outflow of ultraviolet rays to the outside of the clothes dryer by the front surface of the 110 and / or the structure of the door 140 or the main body 100 is blocked, so that the direct irradiation to the user is prevented.

Alternatively, the sterilization lamp 150 may be installed so that ultraviolet rays are irradiated into the drum 110 from the top of the front supporter 107. Even in this case, the ultraviolet rays irradiated from the sterilization lamp 150 are irradiated only into the drum 110, and the ultraviolet rays irradiated toward the door 140 from the sterilization lamp 150 are the door 140. And blocked at the wall of the main body 100 to prevent direct contact with the user.

On the other hand, the door 140 has a window (not shown) is formed so that the user can look inside the drum 110, the glass may be fitted to the window (not shown). Therefore, the ultraviolet rays emitted from the sterilization lamp 150 during the operation of the clothes dryer through the window of the door 140 may block the ultraviolet rays from the window of the door 140 so as not to leak to the outside or affect the user. It is preferable to apply a coating.

Next, the operation of the clothes dryer according to the first embodiment of the present invention configured as described above is as follows.

First, when the user operates the dryer, the air introduced from the outside is sucked into the heater chamber 120 and heated while passing through the heater 121 to be introduced into the hot air supply duct 130. The hot air discharged from the hot air discharge unit 131 of the hot air supply duct 130 is introduced into the main flow path 112 after being introduced between the first rear supporter 191 and the second rear supporter 193. The rest flows into the sub flow passage 114.

As the hot air introduced into the sub flow passage 114 is in contact with the drying object evenly, the moisture is evaporated by heating the drying object. In addition, the hot air introduced into the main flow path 112 evaporates moisture from the object to be dried while passing through the drum 110, and by the action of the blower 180, the main flow path 112 and the sub flow path 114. ) Guides the hot air introduced into the exhaust duct 170 to be discharged to the outside of the dryer.

Therefore, the hot air supplied through the sub-channel 114 increases the contact time with the object to be dried, so that moisture evaporates well, and the hot air supplied along the main channel 112 rapidly flows into the drum 110. Shorten the discharge time of the wet air, the drying time is shortened and the drying efficiency is high.

Meanwhile, referring to FIGS. 3A to 3B, the clothes dryer according to the second embodiment of the present invention will be described.

The basic configuration of the second embodiment is the same as that of the first embodiment described above, and the same components are given the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

However, in the present embodiment, unlike the first embodiment described above, the tub 213 is horizontally installed inside the main body 200, and the tub 213 has a predetermined distance from the inner circumferential surface of the tub 213. A drum 210 having a plurality of through holes 211 formed therein is rotatably mounted on a surface thereof, and rear supporters 291 and 293 are coupled to rear ends of the tub 213 and the drum 210, respectively.

Here, the first rear supporter 291 coupled to the rear end of the drum 210 is installed to rotate together with the drum 210, and the second rear supporter 291 coupled to the rear end of the tub 213 and the tub 213. The rear supporter 293 is fixedly installed.

In addition, the second rear supporter 293 is coupled to the open rear end of the tub 213, and the hot air discharge portion 231 of the hot air supply duct 230 is seated on one side thereof, so that the hot air supply duct 230 And a second hot air inlet 294 for communicating the inside of the drum 210 with each other.

The first rear supporter 291 is coupled to a rear end of the drum 210 and corresponds to the second hot air inlet 294 to discharge hot air discharged from the second hot air inlet 294. A first hot air inlet 292 is formed to guide the inside.

Accordingly, the hot air supplied from the hot air supply duct 230 forms a main flow path 212 that flows into the drum 210 from the second hot air inlet 294 via the first hot air inlet 292. do. Here, a part of the hot air discharged from the second hot air inlet 294 is introduced between the drum 210 and the tub 213 to be supplied into the drum 210 through the through hole 211 of the drum 210. The sub flow path 214 is formed.

At this time, since the first rear supporter 291 rotates together with the drum 210, hot air flows smoothly through the first hot air inlet 292 while the first rear supporter 291 rotates. The first hot air inlet 292 may be formed in a band-shaped annular shape along the entire circumference of the first supporter 291.

Of course, the first hot air inlet 292 is in the form of a band that is partially interrupted, as shown in FIG. 3B, for practical reasons on the first rear supporter 291. On the other hand, the shape of the first hot air inlet 292 is not limited thereto.

In addition, the first and second rear supporters 291 and 293 are coupled to the drum 210 and the tub 213 and coupled to the drum 210 to increase the sealability of the drum 210 and the tub 213. Circular stepped surfaces corresponding to the end shape of the tub 213 may be formed, respectively. 3A and 3B, the first and second rear supporters 291 and 293 have circular stepped surfaces.

Here, the first rear supporter 291 supports the rear end of the drum 210, and serves to maintain the drum 210 and the tub 213 at a predetermined interval.

In addition, the first rear supporter 291 separates the flow path of the hot air supplied from the hot air supply duct 230 into the main flow path 212 and the sub flow path 214, and guides the hot air to the sub flow path 214. It also plays a role. That is, when hot air supplied from the hot air supply duct 230 is discharged from the hot air discharge unit 231, a part of the hot air flows toward the sub flow path 214 while hitting the first rear supporter 291.

At this time, since the first hot air inlet 192 has a relatively large opening area, most of the hot air supplied from the hot air supply duct 230 flows to the first hot air inlet 192. In addition, since the flow path is narrower than the main flow passage 212 because the flow passage is narrow, the sub flow passage 214 supplies a larger amount of hot air toward the main flow passage 212 than the sub flow passage 214. do. In addition, the hot air flows in the main flow passage 212 at a relatively high speed.

Meanwhile, in the above-described second embodiment, the first rear supporter 291 is installed at the rear of the drum 210. However, only the drum 210 having the rear end portion opened without installing the first rear supporter 291 is provided. You can also install it.

That is, by forming a bent portion or the like at a portion of the rear end of the drum 210 that is opened from the drum 210, hot air discharged from the second hot air inlet 194 collides with a portion to flow into the sub flow path 214. It would also be possible.

Next, a clothes dryer according to a third embodiment of the present invention will be described with reference to FIG. 4.

The basic configuration of the third embodiment is the same as that of the first embodiment described above, and the same components are given the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

However, in the present embodiment, unlike the first or second embodiment described above, the rear ends of the drum 310 and the tub 213 are installed to be on the same plane, and the drum 310 and the tub ( One rear supporter 390 is provided which simultaneously supports the rear end of 313.

The drum 310 is rotatably installed at a predetermined distance from the inner circumferential surface of the tub 313, and the rear supporter 390 rotatably supports the drum 310, and the drum 310 and the tub The inside of 313 is sealed.

One end of a hot air supply duct 330 for supplying hot air into the drum 310 is communicated with the rear supporter 390.

Specifically, the first hot air inlet 391 for guiding hot air from the hot air supply duct 330 to the main flow passage 312 directly communicating with the drum 310, the drum 310, and the tub 313. A second hot air inlet 392 is formed to guide the hot air to the sub flow passage 314 between the lines.

The first hot air inlet 391 may be formed as one hole that is relatively large in the rear of the drum 310, so that most of the hot air supplied from the hot air supply duct 330 may flow into the main flow path 312. Make sure

On the other hand, the second hot air inlet 392 is to be formed in a limited space between the drum 310 and the tub 313, so that a relatively large amount of hot air can be supplied to the rear supporter 390. It is preferable to form a narrow or long hole or slit in the circumferential direction from the edge side.

In addition, the hot air supply duct 330 is formed in a relatively near rectangular shape, all the front surface of the hot air supply duct 330 is coupled to the rear supporter 390, the second hot air inlet 392 is the The rear supporter 390 is formed at a portion where the sub flow passage 314 and the hot air supply duct 330 cross each other. In other words, a hole may be formed in the second hot air inlet 392 so that the rear supporter 390 communicates with the sub flow passage 314 at an upper portion and a lower portion thereof.

Alternatively, the second hot air inlet 392 may be formed as a single hole along an edge of the rear supporter 390 from an upper portion to a lower portion of the first hot air inlet 391. However, the position of the second hot air inlet 392 is not limited thereto.

In addition, the hot air supply duct 330 is seated in the first and second hot air inlets 391 and 392, respectively, to supply the hot air to the main flow passage 312 and the sub flow passage 314. The second hot air discharge portion 332 is formed.

On the other hand, the rear supporter 390 is provided with a sterilization lamp 350 for sterilizing the inside of the drum 310. The germicidal lamp 350 is installed on the upper portion of the rear supporter 390 coupled to the rear end of the drum 310 to irradiate ultraviolet rays into the drum 310.

Meanwhile, in the above-described embodiments, the exhaust type clothes dryer has been described, but the present invention may be applied to the condensation clothes dryer.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications without departing from the spirit of the present invention, and such modifications are within the scope of the present invention.

According to the clothes dryer according to the present invention described above has the following effects.

First, since hot air is supplied through a plurality of through-holes perforated on the surface of the drum, hot air is supplied from all directions of the object to be dried, and the time and area in which the hot air is in contact with the object to be dried are increased, thereby greatly improving the drying efficiency and drying. Time will be reduced.

In particular, since the hot air discharged from the front of the drum flows at a slower speed than the main flow of the hot air supplied into the drum, the contact time with the drying object is relatively long, so that a large amount of heat is transferred to the drying object, thereby drying efficiency. This is improved.

Second, since hot air is discharged through the entire surface of the drum, when drying a small amount of the drying object, the drying object may be prevented from being lowered due to the adhesion of the drying object to the drum surface.

Third, the sterilization effect on the object to be dried is great by irradiating ultraviolet light with high sterilization power during drying. In addition, as the hot air supplied through the through-holes of the perforated drum increases the poling phenomenon of the drying object, ultraviolet rays are uniformly irradiated on the drying object, thereby significantly increasing the sterilization effect.

Claims (12)

A cylindrical tub that is horizontally supported inside the body; A drum rotatably installed in the tub and having a plurality of through holes formed on the surface of the tub; A rear supporter installed at the rear of the drum to rotatably support the drum; A hot air supply duct having one end coupled to the rear supporter and supplying hot air into the drum; A main flow passage through which hot air is supplied directly into the drum from the hot air supply duct; And a sub flow passage through which the hot air is introduced into the drum through the through hole of the drum after the hot air flows from the hot air supply duct between the drum and the tub. The method of claim 1, The rear supporter is a clothes dryer comprising a first rear supporter for supporting the rear end of the drum, and a second rear supporter for supporting the rear end of the tub. The method of claim 2, The second rear supporter is formed with a second hot air inlet port on which one end of the hot air supply duct is seated, And the first hot air inlet is formed in the first rear supporter at a position corresponding to the second hot air inlet so as to supply hot air into the drum. The method of claim 2, The first rear supporter rotatably supports the drum and is fixed to the clothes dryer, characterized in that it is installed to be fixed. The method of claim 2, And the first rear supporter is installed to rotate together with the drum. The method of claim 5, The second rear supporter is formed with a second hot air inlet, one end of the hot air supply duct is seated, And a first hot air inlet for guiding the hot air supplied from the hot air supply duct into the drum in the first rear supporter. The method of claim 5, The first hot air inlet is a clothes dryer, characterized in that formed in a ring-shaped annular shape in the first rear supporter. The method of claim 1, The rear end of the drum and tub clothes dryer characterized in that one rear supporter is coupled to support the drum and the tub at the same time. The method of claim 8, The rear supporter is provided with a first hot air inlet communicating with the main flow passage, and at least one second hot air inlet communicating with the sub flow passage, And a first hot air discharge portion corresponding to the first hot air inlet, and a second hot air discharge portion corresponding to the second hot air inlet are formed in the hot air supply duct. The method of claim 1, In the drum, a clothes dryer characterized in that the sterilization device for sterilizing the drying object by irradiating ultraviolet rays to the drum further installed. The method of claim 10, The sterilizing apparatus is a clothes dryer, characterized in that installed in the rear top inside the drum. The method of claim 1, The sterilizer is a clothes dryer, characterized in that installed in the front top inside the drum.

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