KR101093865B1 - A guide apparatus of the circulated air in a dryer - Google Patents

Abstract

The present invention relates to a dryer, and more particularly, to a circulating air guide device of a dryer provided with means for allowing some air leaking into the drum without being introduced into the rear wall of the drum in the circulating air circulating inside the dryer.

The circulating air guide device of the dryer according to the present invention comprises a back cover that covers the back of the dryer; A disk-shaped drum rear wall sealing cover fastened to a central portion of the back cover; And an auxiliary suction cover formed on one side of the drum rear wall sealing cover.

By the circulating air guide device of the dryer according to the present invention, even if the air guided to the back cover by the drying fan does not enter the drying drum through the heater and leaks to the side, it is reflowed into the drum. .

Strength-reinforced emboss, drum rear wall seal cover, back cover

Description

A guide apparatus of the circulated air in a dryer}

1 is a front exterior perspective view of a dryer having a back cover device according to the spirit of the present invention;

Figure 2 is a perspective view of the back of the dryer showing the back cover device according to the spirit of the present invention.

Figure 3 is an enlarged perspective view showing a back cover according to the spirit of the present invention.

<Description of the symbols for the main parts of the drawings>

100: dryer 110: front cover 120: side cover

130: top cover 140: control panel 150: drawer

160: door 170: door lint filter 180: condenser housing

200: drum 300: back cover 310: duct cover seating surface

320: heater cover 330: air guide 340: drying fan

350: drum rear wall sealing cover 360: auxiliary suction cover

The present invention relates to a dryer, and more particularly, to a circulating air guide device of a dryer provided with means for allowing some air leaking into the drum without being introduced into the rear wall of the drum in the circulating air circulating inside the dryer.

BACKGROUND ART In general, a clothes dryer is a device for supplying hot air generated from an electric heater or a gas combustion device to a drying object such as clothes put into a drum to dry clothes, and the demand thereof is increasing in recent years.

In general, the clothes dryer is equipped with a drying drum in which a drying object is accommodated, a heater and a blowing fan for supplying heat to the drying drum, and a condenser for heat exchange between the circulating air and the outside air in the drum.

In detail, a journal bearing is mounted at the rear center portion of the drying drum, and the journal bearing shaft is connected to the back cover. Therefore, a part of the load of the drum is supported by the back cover. The remaining load of the drum is supported by the front cover of the dryer.

Meanwhile, hot air is sent into the drum by a heater mounted on the back cover. In detail, the heater is mounted on the outer circumferential surface of the back cover, and a duct cover is mounted to guide the circulating air to the heater. Therefore, the circulating air blown by the drying fan located at the bottom rear of the dryer moves along the inside of the duct. Then, the circulating air that is heat exchanged while passing through the heater protected by the duct cover is introduced into the drum.

Here, most of the circulating air blown by the drying fan passes through the heater along the inside of the duct, and then enters into the drying drum. However, a portion of the circulating air flows between the duct cover and the back cover without passing through the heater, and causes a problem of exiting into the room.

The present invention has been proposed to solve the above problems, by improving the structure of the back cover of the dryer, the air leaked to the outside without passing through the heater so that the air does not flow into the drum is introduced into the drum again It is an object to provide a circulating air guide device.

The circulating air guide device of the dryer according to the present invention for achieving the object as described above comprises a back cover to cover the back of the dryer; A disk-shaped drum rear wall sealing cover fastened to a central portion of the back cover; And an auxiliary suction cover formed on one side of the drum rear wall sealing cover.

By the above configuration, even if the air guided to the back cover by the drying fan does not enter the inside of the drying drum through the heater and leaks to the side, it is re-introduced into the drum to increase the air circulation efficiency and the heat efficiency of the heater. It is effective.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that there is no intention to limit the scope of the present invention to the embodiment shown, and that other embodiments falling within the scope of the present invention may be easily devised by adding, Can be proposed.                     

1 is a front exterior perspective view of a dryer having a back cover device according to the spirit of the present invention, and FIG. 2 is a rear exterior perspective view of the dryer showing a back cover device according to the spirit of the present invention.

1 and 2, the dryer 100 is provided with a back cover according to the present invention is the front cover 110, the side cover 120 and the top cover 130 to form an appearance and is mounted on the rear The back cover 300 is included. In addition, a control panel 140 mounted on an upper portion of the front cover 110 and provided with a dial knob 142 and a display unit 141 for inputting operating conditions of the dryer 100 is provided.

In addition, a drawer 150 for storing condensed water generated during the drying process is inserted into one edge of the control panel 140, and an opening is formed in an approximately center portion of the front cover 110. Then, the door 160 for opening and closing the opening, and the door lint filter 170 is attached to the rear surface of the door 160 to filter lint and other foreign substances generated during the drying process. In addition, a body lint filter 112 is formed at a lower end of the opening contacting the lower end of the door lint filter 170.

In addition, the dryer 100 has a cylindrical drum 200 accommodated therein, and is mounted at the center of the rear wall of the drum to support the load of the drum 200, so that the drum 200 can rotate smoothly. Journal bearings (not shown) are included. In addition, a journal bearing shaft 234 is integrally formed with the journal bearing at a central portion of the back cover 300 so as to support the drum 200 by the back cover 300.                     

In addition, the back cover 300 further includes a drying fan 340 which exits the drum 200 and sucks the circulating air heat-exchanged while passing through the condenser to be re-introduced into the drying drum 200. . In addition, the back cover 300 includes an air guide 330 at the edge of the drying fan 340 for guiding the flow of circulating air sucked by the drying fan 340. The heater cover 320 includes a heater (not shown) for heating the circulating air guided by the drying fan 340 and the air guide 330, and the drying fan 340 and the air guide 330. ) And the heater cover 320 are covered by a duct cover (not shown).

Here, the air heated by the heater while passing through the heater cover 320 is introduced into the drum 200. The center of the back cover 300 includes a drum rear wall sealing cover 350 having a groove through which the journal bearing shaft 234 penetrates, and a communication hole connecting the heater cover 320 to the drum. do. In detail, the drum rear wall sealing cover 350 covers the rear wall of the drum 200 to prevent the air passing through the heater cover 320 from leaking to the outside without entering the drum 200. It is a disc-shaped cover. Details of the drum rear wall sealing cover 350 will be described later.

On the other hand, the dryer 100 further includes a condenser accommodating part 180 formed on the lower side of the front cover 110 and a suction grill 111 formed horizontally long on the lower side of the condenser accommodating part 180. do.

Referring to the function of the dryer 100 constituting the configuration as described above, as the belt (not shown) wound on the outer peripheral surface of the drum 200 is connected to the motor (not shown), the drum 200 ) Rotates together. Then, as the drum 200 rotates, the garment or other laundry contained in the drum 200 rises to the upper side of the drum 200 and then drops again from the highest point. Then, the hot dry air entering the rear wall of the drum 200 evaporates the moisture absorbed in the drying object.

On the other hand, foreign matter is filtered through the door lint filter 170 and the body lint filter 112 in the drum air changed into a high temperature and high humidity state by the evaporated water. Then, the air passing through the body lint filter 112 is brought to a low temperature and high humidity while passing through the condenser, and condensed water is accumulated. The condensed water is finally delivered to the drawer 150.

In addition, the circulating air passing through the condenser is sucked by the rotation of the drying fan 340 and guided to the heater (not shown) along the air guide 330. In addition, the circulating air changed into a high temperature dry state while passing through the heater is introduced again into the drum through a communication hole (not shown) formed in the drum rear wall sealing cover 350.

Figure 3 is an enlarged perspective view showing a back cover according to the spirit of the present invention.

Referring to FIG. 3, the back cover 300 according to the present invention includes a duct cover seating surface 310 on which a duct cover for protecting the heater cover 320, the drying fan 3340, and the like is seated, and a central portion thereof. And a drum rear wall sealing cover 350 coupled by a fastening member, and a heater cover 320 mounted slightly below the center of the drum rear wall sealing cover 350.

In detail, a heater is built in the heater cover 320, and the circulating air guided to the heater cover 320 is introduced into the drum 200 in the drum rear wall sealing cover 350. Communication holes are formed.

In addition, a journal bearing is mounted at the center of the rear wall of the drum to allow the drum to rotate without friction, and the journal bearing shaft 234 extending from the journal bearing penetrates through the center of the drum rear wall sealing cover 350. Is inserted. The journal bearing shaft 234 is protected by the journal bearing cover 235. In detail, the journal bearing cover 235 is attached to the drum rear wall sealing cover 350 to protect the journal bearing shaft 234.

Meanwhile, the journal bearing shaft 234 penetrates the center portion of the drum rear wall sealing cover 350 so that a part of the drum 200 load is transmitted to the drum rear wall sealing cover 350. In addition, since the drum rear wall sealing cover 350 is seated on the back cover 300, a part of the load of the drum 200 is transferred to the back cover 300.

Therefore, in order to distribute the load transmitted to the drum rear wall sealing cover 350 evenly and the strength is reinforced, a strength reinforcement emboss is formed to be convex in a predetermined length and width.

In detail, the emboss the first emboss 351 recessed or protruded at a predetermined width and length on both sides of the journal bearing shaft 234 and the center of the first emboss 351 again or the recess A protruding second emboss 352 is included. In addition, a third emboss 353 is formed further away from the first emboss 351 is further included. In detail, the third embossing 353 has a curved upper surface along the circumference of the drum rear wall sealing cover 350, and the lower side forms a straight line parallel to the first embossing 351 to form a substantially crescent moon shape.

In addition, a transfer emboss 354 connecting the first emboss 351 and the third emboss 353 is further included, and the emboss is formed in an overall H shape.

Here, the emboss is formed as described above, the load concentrated in the center of the drum rear wall sealing cover 350 is evenly distributed by the emboss. In detail, by forming the emboss 351, 352, 353 as described above, the strength of the drum rear wall sealing cover 350 is reinforced. Therefore, even though the thickness of the drum rear wall sealing cover 350 is thin, the phenomenon of bending due to the load of the drum to be transmitted is eliminated.

On the other hand, the circulating air sucked by the drying fan 340 is guided to the heater cover 320 at the top by the air guide 330. Then, the water is introduced into the heater cover 320 to become high temperature, and then enters into the drum 200 again. However, a portion of the circulating air does not enter the heater cover 320 and leaks to the side surface. The leaked circulating air is collected inside the duct cover covering the heater cover 320 and the like.

In order to allow the accumulated circulating air to flow into the drum 200, the auxiliary suction cover 360 may be formed on one side of the drum rear wall sealing cover 350.

In detail, the auxiliary suction cover 360 is positioned higher than the heater cover 320 so that air that is not introduced into the heater cover 320 is introduced. And, the lower side of the auxiliary suction cover 360 is high and the upper side is in contact with the drum rear wall sealing cover 350, so that the rising air is easily introduced. In addition, in order to allow the circulating air introduced into the auxiliary suction cover 360 to flow into the drum 200, an air suction port 361 is formed on the drum rear wall sealing cover 350.

Here, the auxiliary suction cover 360 may be formed by adding a separate member to the drum rear wall sealing cover 350.

As another method, the drum rear wall sealing cover 350 is cut by a predetermined length, and then the drum rear wall sealing cover 350 is pressed in the direction of the outer surface from the inner side of the drum rear wall sealing cover 350. The auxiliary suction cover 360 may be formed by opening the cutout to form an opening.

Here, the shape or position of the auxiliary suction cover 360 and the strength reinforcement emboss is not suggested in the embodiment of the present invention.

By the circulating air guide device of the dryer according to the present invention having the configuration as described above, even if the air guided to the back cover by the drying fan does not enter the drying drum through the heater inside, but leaks to the side, inside the drum It is effective to reflow into.

In addition, the leaked air is re-introduced into the drum, thereby increasing the circulation efficiency of the air.

Claims (6)

A back cover covering the back of the dryer; A disk-shaped drum rear wall sealing cover fastened to the center of the back cover; And an auxiliary suction cover formed on one side of the drum rear wall sealing cover. The method of claim 1, The drum rear wall sealing cover is a circulation air guide device of the dryer including a communication hole for communicating the circulation air to the position where the auxiliary suction cover is mounted. The method of claim 1, The auxiliary suction cover has a lower side opening, The circulating air guide device of the dryer, characterized in that the inclination is lowered toward the upper side from the lower side. The method of claim 1, And an auxiliary suction cover formed by combining a separate member with the drum rear wall sealing cover. The method of claim 1, One side of the drum rear wall sealing cover is cut into a predetermined length, and an air inlet is formed in the cutout by a force pressed from the inner side to the outer side, The air inlet is circulating air guide device of the dryer, characterized in that toward the lower side of the back cover. The method of claim 1, A drum rear wall sealing cover including a circulation air inlet formed at a lower side of the auxiliary suction cover; A heater cover connected to the circulation air inlet; And a heater mounted within the heater cover.

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