KR100826534B1 - Ductless dryer - Google Patents

Abstract

A ductless dryer is provided to generate regular airflow by aligning a horizontal unit of a circulation duct and a heat exchanging unit on the same line and to secure extra space for storing a filter or a cleaning unit. A ductless dryer comprises a body(110), a drum, a cross fan(230), a drum motor(210), a fan motor(220), a heat exchanging unit, and a circulation duct. The cross fan is installed on the circulation duct, and supplies hot air into the drum. The drum motor and the fan motor drive the drum and the cross fan respectively. The heat exchanging unit eliminates moisture of air discharged from the drum. The circulation duct guides air from the drum to the heat exchanging unit.

Description

Ductless Dryer {DUCTLESS DRYER}

1 is a view schematically showing a ductless dryer of a one-motor type under the present applicant's research and development;

2 is a plan view of the ductless dryer of FIG.

3 is a plan view of a two-motor type ductless dryer under the present applicant's research and development;

4 is a plan view of the ductless dryer according to the first embodiment of the present invention,

5 is a rear view of the ductless dryer of FIG.

6 is a view showing a section VI-VI of FIG. 5,

7 is a plan view of a ductless dryer according to a second embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

110: main body 111: door

113: foot 114: circular duct

120: drum 131: belt

133: fan 161: exhaust duct

210, 310: drum motor 220, 320: fan motor

230, 330: cross fan 240, 340: circulation duct

S: Application space

The present invention relates to a ductless dryer, and more particularly to a ductless dryer with improved drying performance and securing a utilization space.

In general, a clothes dryer is a device that blows hot air generated by a heater into a drum to absorb moisture of a drying object and to dry the drying object. Treatment of wet air generated by drying a drying object by absorbing moisture According to the method, it is classified into exhaust type clothes dryer and condensation clothes dryer.

Exhaust type clothes dryer uses a method of exhausting the humid air discharged from the drum to the outside of the dryer. However, an exhaust duct for exhausting the vaporized water in the drum to the outside is required, and in particular, since the combustion product carbon monoxide and the like are exhausted, there is a disadvantage in that the exhaust duct must be extended to be installed outside.

On the other hand, the condensation type clothes dryer uses a method of condensing the humid air exhausted from the drum in the heat exchanger to remove moisture, and then sending dry air from which the moisture is removed back to the drum to recycle. However, it is not easy to use gas as a heat source because dry flow forms a closed loop.

The ductless dryer is a dryer that overcomes the disadvantages of the exhaust type clothes dryer and the condensation type clothes dryer. In other words, the ductless dryer can be maintained at low cost by using gas as a heat source, and there is no need to install a separate exhaust duct that extends to the outside.

FIG. 1 is a view schematically showing a one-motor type ductless dryer under the present applicant's research and development, and FIG. 2 is a plan view of the ductless dryer of FIG. 1. FIG. 3 is a plan view of a two-motor type ductless dryer under the present applicant's research and development.

1 and 2, the ductless dryer includes a main body 110; A drum 120 rotatably installed in the main body 110; A belt 131 which wraps the outer circumferential surface of the drum 120 to rotate the drum 120; A motor 135 providing a driving force to the belt 131; A pulley 137 mounted to the shaft of the motor 135 to hang the belt 131; Hot air supply unit 140 for providing hot air into the drum 120; A heat exchange part 150 for removing moisture contained in the air exhausted from the drum 120; It includes; circulating duct 114 for inducing the air exhausted from the drum 120 to the heat exchange unit (150).

A door 111 for injecting clothes into the drum 120 is installed on the front surface of the main body 110, and a foot 113 for supporting the main body 110 is installed below the main body 110. The circulation duct 114 is provided with a silico fan 133 for blowing air. The silico fan 133 is rotated by the driving force of the motor 135.

The drum 120 is a tub provided with a space so that clothes, such as a drying object, can be put therein, and a plurality of lifters 121 are installed therein to lift clothes.

The hot air supply unit 140 is a valve 141 for supplying and blocking gas and a gas burner 143 for mixing the gas exhausted from the valve 141 with air provided from the outside and ignited to generate hot air, and generating It includes a hot air supply duct 145 connecting the gas burner 143 and the drum 120 so that the hot air is supplied to the drum 120.

The heat exchanger 150 is composed of a fin 151 and a tube 153, and condenses the hot and humid air exiting the drum 120 by cold water to make it dry by condensing it with cold water. . The inlet of the heat exchange part 150 is connected to the drum 120 by the circulation duct 114, and the outlet thereof is connected to the exhaust duct 161.

Since the above-described ductless dryer drives the drum 120 and the silocco fan 133 simultaneously with a single motor 135, this is called a ductless dryer of a one-motor type. Since the one-motor type ductless dryer has to drive the drum 120 and the silico fan 133 simultaneously with one motor 135, there is a limit in improving drying performance in proportion to the air volume. have. That is, when the siloco fan 133 is rotated at high speed to increase the air flow rate, the drum 120 should also be rotated at high speed. If the high speed is not suitable as the speed for drying the drum 120, the silopan ( 133) cannot be rotated at high speed unconditionally.

Figure 3 is a plan view of a two-motor type ductless dryer that the applicant is researching and developing. 3 shows a two-motor type ductless dryer having a drum motor 171 for driving the drum 120 and a fan motor 173 for driving the silico fan 133, respectively. .

In the two-motor type ductless dryer, the rotating shaft of the drum motor 171 and the rotating shaft of the fan motor 173 are disposed in parallel with each other in order to share the parts with the one-motor type duck tris dryer. A siloco fan 133 is mounted on the rotation shaft of the fan motor 173. However, this arrangement and the silo fan 133 has a problem that it is difficult to ensure a uniform flow field and a sufficient air flow amount, and also to increase the silo fan 133 in order to solve this problem is subject to space constraints it's difficult.

In addition, in the ductless dryer of the one-motor type or the two-motor type shown in FIGS. 2 and 3, a silico fan 133 is installed in the circulation duct 114 to provide a drum ( Air exhausted from the 120 is bypassed and supplied to the heat exchange part 150. At this time, since the circulation duct 114 passes through the center portion of the bottom of the main body 110, it is difficult to secure a space for storing a utilization space, for example, a filter or a cleaning tool, in the center portion of the bottom.

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a ductless dryer having improved drying performance by securing a uniform flow field and a sufficient air volume. In addition, another object of the present invention is to provide a ductless dryer having a space for storing a filter or a cleaning tool.

The ductless dryer according to the present invention for achieving the above object is a drum containing a drying object, a blowing fan for blowing hot air into the drum, a drum motor and a fan motor for driving the drum and the blowing fan, respectively; In the ductless dryer provided, the blowing fan is characterized in that the cross-pan (cross-fan).

In addition, the object is a main body; A drum rotatably installed on the main body; A drum motor for driving the drum; A heat exchanger for removing moisture contained in the air exhausted from the drum; A circulation duct for directing air exhausted from the drum to the heat exchange unit; And a cross-fan installed on the circulation duct. And a fan motor for driving the cross fan.

Here, the rotation axis of the fan motor is preferably orthogonal to the rotation axis of the drum motor.

The circulation duct may include a vertical portion for directing air exhausted from the drum to the cross pan; A horizontal part which guides air exhausted from the cross fan to the heat exchange part; And a connection part connecting the vertical part and the horizontal part.

Here, the cross fan is installed in the connecting portion, it is preferable that the horizontal portion is connected in a straight line with the heat exchange portion.

Alternatively, the horizontal portion may be connected to the heat exchanger to be bent and the utilization space (S) is preferably formed in the space where the horizontal portion is bent and left.

Hereinafter, the ductless dryer according to the first embodiment of the present invention will be described in detail.

4 is a plan view of the ductless dryer according to the first embodiment of the present invention, Figure 5 is a rear view of the ductless dryer of Figure 4, Figure 6 is a view showing a cross-section VI-VI of FIG. The same reference numerals refer to the same and equivalent components, and description thereof will be omitted.

4 and 5, the ductless dryer according to the first embodiment of the present invention includes a main body 110; A drum 120 rotatably installed in the main body 110; A drum motor 210 for driving the drum 120; A pulley 137 mounted to the shaft 210a of the drum motor 210 to hang the belt 131 (see FIG. 1); A heat exchange part 150 including a fin 151 and a tube 153 to remove moisture contained in the air exhausted from the drum 120; A circulation duct 240 for inducing the air exhausted from the drum 120 to the heat exchange unit 150; And a cross fan 230 installed on the circulation duct 240. And a fan motor 220 driving the cross fan 230.

The rotating shaft 220a of the fan motor 220 is orthogonal to the rotating shaft 210a of the drum motor 210. For this reason, the fan motor 220 is disposed perpendicular to the drum motor 210.

4 and 6, the circulation duct 240 includes a vertical portion 241 which guides air exhausted from the drum 120 to the cross pan 230; A horizontal part 245 for guiding the air discharged from the cross fan 230 to the heat exchange part 150; And a connection part 243 connecting the vertical part 241 and the horizontal part 245.

The vertical portion 241 is a passage for guiding air exhausted from the drum 120 in a vertical downward direction.

The horizontal part 245 is a path for guiding air to the heat exchange part 150 in a horizontal direction, and has a trapezoidal first path 245a and the first path 245a and the heat exchange part 150 connected to the connection part 243. ), And includes a rectangular second passage 245b for connecting (). The horizontal part 245 is connected to the heat exchange part 150 in a straight line.

The connection portion 243 is an L-shaped passage that the vertical portion 241 and the horizontal portion 245 connect with each other, and the connection portion 243 is provided with a cross fan 230. Here, the length (L1) of the connecting portion 243 is made long to install a cross fan 230 having a long length (L2).

In the above-described configuration, the air exhausted from the drum 120 descends vertically along the vertical portion 241, and then flows horizontally through the horizontal portion 245 through the cross fan 230 to the heat exchanger 150. . At this time, due to the cross fan 230 having a long length (L2) to ensure a sufficient amount of airflow drying performance is improved. In addition, since the horizontal portion 245 is connected to the heat exchange part 150 in a straight line, the flow path resistance decreases to form a uniform flow field. That is, since the air discharged from the cross fan 230 flows directly into the heat exchange part 150, the flow path resistance is reduced to form a uniform flow field.

Hereinafter, a ductless dryer according to a second embodiment of the present invention will be described in detail. 7 is a plan view of a ductless dryer according to a second embodiment of the present invention. The same reference numerals refer to the same and equivalent components, and description thereof will be omitted.

Referring to FIG. 7, the ductless dryer according to the second embodiment of the present invention includes a main body 110; A drum 120 rotatably installed in the main body 110 (see FIG. 1); A drum motor 310 driving the drum 120; A pulley 137 mounted to the shaft 310a of the drum motor 310 to hang the belt 131 (see FIG. 1); A heat exchange part 150 including a fin 151 and a tube 153 to remove moisture contained in the air exhausted from the drum 120; A circulation duct 340 which guides the air exhausted from the drum 120 to the heat exchange unit 150; And a cross fan 330 installed on the circulation duct 340. And a fan motor 320 for driving the cross fan 330.

The circulation duct 340 may include a vertical portion 341 (see FIG. 6) for guiding air exhausted from the drum 120 to the cross pan 330; A horizontal part 345 which guides the air discharged from the cross fan 330 to the heat exchange part 150; And a connecting portion 343 connecting the vertical portion 341 (see FIG. 6) and the horizontal portion 345.

The connecting portion 343 reduces the length L4 of the connecting portion 243 (see FIG. 4) according to the first embodiment, and installs a cross pan 330 having a short length L5 to the connecting portion 343. In addition, the length (L6) of the fan motor 320 is also reduced.

Thus, the horizontal portion 345 is bent in the direction of the heat exchanger 150 and the fan motor 320 in order to connect the connection portion 343 and the heat exchanger 150 whose length L4 is reduced. To this end, the horizontal portion 345 is bent in the direction of the connecting portion 343 so that the first passage 345a and the first passage 345a connected to the connecting portion 343 connect the first passage 345a and the heat exchange part 150 in a straight line. 345b).

Due to the first passage 345a which is bent, the utilization space S for accommodating the filter or the cleaning tool is secured in the original place where the first passage 345a has passed before being folded in the ductless dryer.

The operation of the exhaust ductless dryer according to the first embodiment will be described below.

4 and 5, after the gas is supplied from the valve 141, the gas burner 143 is mixed with external air and then ignited to generate hot air. The generated hot air is supplied into the drum 120 through the hot air supply duct 145 (see FIG. 1). Drying objects such as clothes accommodated in the drum 120 are dried by the supplied hot air.

The air heated and dried by drying the object is forced to the heat exchanger 150 through the circulation duct 240. More specifically, the air exhausted from the drum 120 descends in the vertical downward direction through the vertical part 241, and then is discharged to the horizontal part 245 by the cross fan 230 provided in the connection part 243, and discharged. The supplied air flows directly into the heat exchange part 150 via the horizontal part 245.

The hot and humid air is condensed while contacting and passing through the fins 151 of the heat exchange part 150 vertically, and is converted into dry air. The condensed water generated and dropped in the condensation process is collected in a drip tray (not shown).

The dry air exhausted from the heat exchange part 150 is exhausted to the outside via the exhaust duct 161.

According to the ductless dryer according to the embodiments of the present invention described above,

By installing a cross fan in the circulation duct, it is possible to secure a sufficient air volume, thereby improving drying performance. In addition, since the horizontal portion of the circulation duct is connected in a straight line with the heat exchanger, the flow path resistance decreases to form a uniform flow field.

In addition, when the length of the connecting portion of the circulation duct is shortened and a short cross fan is installed in the connecting portion, the circulation duct is bent and connected to the heat exchanger. Therefore, a utilization space for accommodating the filter or the cleaning tool is secured in the original position of the circulation duct before bending.

Claims (8)

A ductless dryer comprising a drum in which a construction object is accommodated, a blowing fan for blowing hot air into the drum, a drum motor and a fan motor for driving the drum and the blowing fan, respectively. The blower fan is a cross-fan (cross-fan) ductless dryer. main body; A drum rotatably installed on the main body; A drum motor for driving the drum; A heat exchanger for removing moisture contained in the air exhausted from the drum; A circulation duct for directing air exhausted from the drum to the heat exchange unit; And A cross-fan installed on the circulation duct; And Ductless dryer comprising; a fan motor for driving the cross fan. The method of claim 2, The rotation axis of the fan motor is a ductless dryer orthogonal to the rotation axis of the drum motor. The method of claim 2, wherein the circulation duct, A vertical portion for directing air exhausted from the drum to the cross pan; A horizontal part which guides air exhausted from the cross fan to the heat exchange part; And Ductless dryer comprising a; connecting portion connecting the vertical portion and the horizontal portion. 5. The ductless dryer of claim 4, wherein the cross pan is installed at the connection portion. The ductless dryer of claim 4, wherein the horizontal portion is connected to the heat exchange portion in a straight line. The ductless dryer of claim 4, wherein the horizontal portion is bent and connected to the heat exchange portion. The ductless dryer according to claim 7, wherein the space where the horizontal portion is bent and left is formed with a utilization space (S).

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