KR20030050294A - method for controlling dual drum-type clothes dryer - Google Patents

Abstract

PURPOSE: A control method of a dual drum drier is provided to maximize drying efficiency by controlling speed and rotational direction of a first drum and a second drum optimally and combining the steps. CONSTITUTION: A dual drum drier is composed of a body(100) having an inlet(101); a door(105) opening and closing the inlet selectively; a drying drum(200) composed of first and second drums(210,220) rotating at same or opposite direction and installed in the body; a driving unit applying rotational force to the drying drum; and a drying unit supplying hot blast into the drying drum or discharging. The first drum and the second drum are rotated at the same direction, and the first drum is rotated in the opposite direction to the second drum. The first and second drums are rotated unidirectionally with difference of speed, and the first and second drums are rotated conversely with different speed. Drying efficiency is improved by controlling the dual drum drier efficiently with combining two or more steps.

Description

Control Method of Dual Drum Dryer {method for controlling dual drum-type clothes dryer}

The present invention relates to a control method of a dual drum type dryer, and more particularly, to a control method that can maximize the drying performance of the dual drum type dryer.

In general, a dryer is a device for automatically drying a dry object (for example, clothes, bedding, etc.) in a wet state. A conventional configuration of such a dryer will be described below.

1 is a longitudinal sectional view schematically showing a dryer according to the prior art, and FIG. 2 is a cross-sectional view taken along the line I-I of FIG. 1, wherein the conventional dryer includes a main body 100 having an inlet 101 formed on the front surface thereof, and the main body. The drying drum 30 is rotatably installed in the 100 and a plurality of stirring pieces 30a protruding from the inner circumferential surface, a door 105 for selectively opening and closing the inlet 101, and the main body 100. A motor 50 fixed to the inner side to generate a rotational force, a belt 60 for transmitting the rotational force generated from the motor 50 to the drying drum 30, and external air flow into the drying drum 30. Hot air guide flow paths (10a, 10b) for guiding the air flow to be discharged to the outside of the main body 100, the heater 20 is installed inside the hot air guide flow path (10a) to heat the air in a high temperature state, and the hot air External air may be introduced through the guide passage 10a to be discharged to the outside of the main body 100. It consists of an exhaust fan 40 for generating a forced blowing force.

Referring to the drying operation according to the conventional dryer made in such a configuration as follows.

First, after the drying object is put into the drying drum 30, the drying operation is performed, and the heater 20 and the motor 50 are operated.

Then, as the exhaust fan 40 is operated, the outside air introduced into the main body 100 through the suction side of the hot air guide flow passage 10a is heated to high temperature while passing through the heater 20, and thus, through the hot air guide flow passage 10a. It is forced to flow into the drying drum (30).

Subsequently, the hot air introduced into the drying drum 30 is discharged to the outside of the main body 100 through the discharge side of the hot air guide flow path 10b while evaporating the moisture of the dry object in the wet state by the suction blowing force of the exhaust fan 40. The discharge cycle is repeated, and the drying drum 30 receives the driving force of the motor 50 by the belt 60 and rotates at low speed in the forward and reverse directions for a predetermined period of time so that the drying object therein is dried. It is pulled up and dropped by the stirring piece 30a, and drying of the drying object such as clothing is performed in this process.

That is, the hot air supplied into the drying drum 30 as the drying object 30 is solved by releasing the kink or entanglement of the inside drying object by the rotation of the drying drum 30 and continuously flowing the drying object inside the drying drum 30. It is to be evenly delivered to the drying object to improve the drying performance.

However, the above-described conventional dryer is to solve the phenomenon that the drying objects are tangled or twisted by the drying drum 30, the drying drum 30 is continuously rotated when the amount of the drying object is large Even if the drying objects continue to overlap, hot air supply is not performed smoothly, and thus, the drying performance is deteriorated, such as only locally drying and not drying properly.

This problem is further deepened as the capacity of the dryer has recently increased, and thus the time required for drying the drying object is further increased, resulting in an increase in power consumption.

On the other hand, in order to solve such a problem has been proposed a dual drum type dryer as described below, which will be described as follows.

The dual drum type dryer includes a main body 100 having an inlet 101, a door 105 for selectively opening and closing the inlet 101, and a pair of drums rotatable in the same or opposite directions with respect to each other. 210 and 220, a drying drum 200 installed inside the main body 100, driving means for applying rotational force to the drying drum 200, and supplying or discharging hot air into the drying drum 200. It comprises a drying means.

At this time, the main body 100, the inlet 101 is formed on the front surface to enable the insertion and withdrawal of the drying object, the inlet 101 is provided with a door 105 that can be opened and closed selectively.

In addition, the drying drum 200 includes a first drum 210 and a second drum 220 having a hollow cylindrical shape to separate the rear end of the first drum 210 and the second drum 220. It is configured to form one drying space in which the drying objects can be accommodated by connecting the front ends side by side in the axial direction in a state lying down to face each other.

In addition, a front plate 217 is installed at the front end of the first drum 210 so that a portion of the front plate 217 is rotatably supported on one side of the front surface of the main body 100 in which the inlet 101 is formed. A rear plate 227 having a support shaft 228 is installed at a rear end of the second drum 220 so that the support shaft 228 is rotatably supported at one side of the rear surface of the main body 100, thereby supporting a drying drum. 200 is rotatably supported inside the main body 100.

In addition, a plurality of stirring pieces 201a and 220a each having a predetermined length is formed on the inner circumferential surfaces of the first drum 210 and the second drum 220 to protrude inward in the radial direction, thereby rotating the drying drum 200. It is configured to serve to increase the flow of the drying object according to.

In this case, the first drum 210 and the second drum 220 are connected by connecting members such that the drums 210 and 220 are rotatable independently of each other, which will be described in detail below. same.

The connecting member has an inward bent portion 215 formed by bending an outer circumferential surface of the rear end portion of the first drum 210 radially inwardly and an outwardly curved portion of the front end portion of the second drum 220 bent radially outwardly. Consists of the bent portion 225, the inward bent portion 215 and the outward bent portion 225 is engaged with each other to enable connection of the first drum 210 and the second drum 220.

In addition, the outward bending portion 225 is inserted into the inward bending portion 215 so that the inner surface of the inward bending portion 215 surrounds the outer surface of the outward bending portion 225 of the first and second drums 210 and 220. By engaging each corresponding end, the first drum 210 and the second drum 220 are configured to be rotatable independently of one another.

At this time, a friction reducing member is installed between the inward bending portion 215 and the outward bending portion 225 so that the contact may be generated when the first drum 210 and the second drum 220 rotate. In addition to preventing noise and to reduce the frictional resistance on the contact surface is preferably configured to enable a smooth rotation.

Meanwhile, the first drum 210 and the second drum 220 are rotatable in the same direction or in opposite directions with respect to each other by the driving means. The driving means will be described with reference to FIG. 4 as follows. .

The driving means is installed inside the main body 100 and a pair of motors (231,232) that can be rotated in a forward and reverse direction at regular intervals, motor pulleys (231a, 232a) connected to the drive shaft of each of the motors (231, 232), A first belt 241 connected between the motor pulleys 231a and 232a and the first and second drums 210 and 220 to independently transmit the rotational force of each of the motors 231 and 232 to the first and second drums 210 and 220. ) And the second belt 242, the first drum 210 and the second drum 220 are configured to receive the rotational force of each of the motors 231 and 232 separately.

In this case, the pair of motors 231 and 232 may rotate the first drum 210 and the second drum 220 in opposite directions by applying a driving force in the same direction or in opposite directions under the control of a controller. Will be.

On the other hand, the drying means constituting the dual drum type dryer will be described with reference to FIG.

The drying means has one end connected to the rear plate 227 of the second drum 220 and the other end communicates with the outside of the main body 100 to guide the hot air to guide the air outside the main body 100 to the inside of the drying drum 200. A flow path 10a, a heater 20 installed inside the hot air guide flow path 10a, and heating the air, and one end of the front plate 217 of the first drum 210 are connected to each other, and the other end is the main body 100. The hot air guide flow path 10b communicating with the outside and guiding the air inside the drying drum 200 to the outside of the main body 100, and connected to the motor 231 through the hot air guide flow paths 10a and 10b. 200 is composed of an exhaust fan 40 for generating a forced blowing force to enable the supply and discharge of air to the inside.

Such a dual drum type dryer is capable of rotating the first and second drums constituting the drying drum in the same or opposite directions, thereby eliminating the kinks and entanglement of the drying object, thereby making it possible to dry without wrinkles. In order to allow the drying object to flow actively in the hot air is to be evenly transmitted to the drying object has the effect that it is possible to quickly dry.

However, a more efficient control method for the dual drum type dryer has not been proposed at present.

An object of the present invention is to provide a drying control method capable of maximizing the drying performance of a dual drum type dryer by efficiently controlling the dual drum type dryer.

1 is a longitudinal sectional view schematically showing a dryer according to the prior art

2 is a cross-sectional view taken along line II of FIG. 1.

3 is a longitudinal sectional view showing a dual drum type dryer to which the control method of the present invention is applied;

4 is a perspective view schematically showing a power transmission structure of the dual drum type dryer of FIG.

* Description of the symbols for the main parts of the drawings *

10a, 10b: Hot air guide euro 20: Heater

100: main body 200: dry drum

210,220: 1st, 2nd drum 210a, 220a .... Stirring

241,242: First and second belt

In order to achieve the above object, the present invention comprises a main body having an inlet, a door for selectively opening and closing the inlet, and a first drum and a second drum rotatable in the same or opposite directions with respect to each other, A control method of a dual drum type dryer comprising a drying drum installed, a driving means for applying rotational force to the drying drum, and a drying means for supplying or discharging hot air into the drying drum; Rotating the first drum and the second drum in the same direction; rotating the first drum and the second drum in opposite directions; and rotating the first drum and the second drum at a speed difference. And controlling at least two or more steps of rotating the first drum and the second drum in a reverse direction to each other and having a difference in speed so that drying of the drying object is performed. A method is provided.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to FIGS. 3 and 4.

Prior to this, since the configuration of the dual drum type dryer according to the present invention has been described above, a description thereof will be omitted.

Figure 3 is a longitudinal cross-sectional view showing a dual drum type dryer to which the control method of the present invention is applied, Figure 4 is a perspective view schematically showing a power transmission structure of the dual drum type dryer of Figure 3, the present invention is an inlet 101 The main body 100 includes a main body 100 having a main body 100, a door 105 selectively opening and closing the inlet 101, and first and second drums 210 and 220 rotatable in the same or opposite directions with respect to each other. Dual drum type dryer comprising a drying drum 200 installed therein, a driving means for applying rotational force to the drying drum 200, and a drying means for supplying or discharging hot air into the drying drum 200. To; Rotating the first drum 210 and the second drum 220 in the same direction, rotating the first drum 210 and the second drum 220 in opposite directions, and rotating the first drum 210 and the first drum 220. Rotating the first drum 210 and the second drum 220 in opposite directions, while rotating the first drum 210 and the second drum 220 in the same direction. At least two or more steps are combined to dry the object to be dried.

An example of the operation of the dual drum type dryer according to the above-described control method is as follows.

First, after the drying object is put into the drying drum 200, the drying operation is performed, and the heater 20 is operated.

As the exhaust fan 40 is operated, hot air generated by the high temperature of the external air introduced through the suction side of the hot air guide flow path 10a through the heater 20 is dried through the hot air guide flow path 10a. 200 is forced to flow inside.

At this time, first, the motors 231 and 232 are driven to move the first drum 210 and the second drum 220 in the same direction and at the same speed through the first belt 241 and the second belt 242. Rotate for time.

Subsequently, after the first drum 210 and the second drum 220 are rotated in the same direction and at the same speed for a predetermined time, they are rotated in opposite directions at the same speed for a predetermined time. At this time, as the first drum 210 and the second drum 220 rotate in opposite directions, respectively, the drying object accommodated therein is simultaneously flown in both directions by the stirring pieces 210a and 220a.

That is, the object to be dried inside the first drum 210 repeats the cycle of rising and falling in the clockwise direction, while the object to be dried inside the second drum 220 is dried by repeating the falling cycle after rising in the counterclockwise direction. The drying objects accommodated inside the drum 200 flow in directions opposite to each other, thereby effectively preventing entanglement of the drying objects.

On the other hand, when rotating the first drum 210 and the second drum 220 in the same direction, if the difference in the rotational speed of the first drum 210 and the second drum 220 drying drum 200 The flow form of the drying object in the () becomes diverse.

In addition, when the first drum 210 and the second drum 220 rotate in opposite directions, if the difference in the rotational speed of the first drum 210 and the second drum 220 is further dried By flowing in more various forms, the drying performance is improved.

The first drum 210 and the second drum 220 may be rotated in the same direction or in opposite directions with a speed difference.

On the other hand, the hot air introduced into the drying drum 200 to the outside of the main body 100 through the discharge side of the hot air guide flow path (10b) while evaporating the moisture of the dry object in the wet state by the suction blowing force of the exhaust fan (40). The discharged cycle is repeated, and the drying object is dried in this process.

Embodiment of the present invention as described above is configured to help the understanding of the present invention is not limited only to the above-described embodiment, various modifications are possible without departing from the spirit of the present invention.

As described above, according to the present invention it is possible to maximize the drying performance of the dual drum type dryer.

That is, combining the first drum and the second drum at the same speed or different speed in the same direction, or by rotating the first drum and the second drum at the same speed or different speed in the opposite direction to the dry object By performing the drying for the drying performance of the dual drum dryer can be maximized.

Claims (1)

A main body having an inlet, a door for selectively opening and closing the inlet, a first drum and a second drum rotatable in the same or opposite directions with respect to each other, and a drying drum installed inside the main body, and a rotational force on the drying drum. In the control method of the dual drum type dryer comprising a drive means for providing a; and a drying means for supplying or discharging hot air into the drying drum; Rotating the first drum and the second drum in the same direction; Rotating the first drum and the second drum in opposite directions; Rotating the first drum and the second drum at a speed difference; Rotating the first drum and the second drum in a reverse direction with each other, at least two or more of the steps of the speed difference is combined to perform drying on a drying object.