KR100692556B1 - Drier having steam spray and control method thereof - Google Patents

Abstract

A drier having a steam injection apparatus and a control method thereof are provided to remove wrinkles and smells of clothes by omitting a washing step and only operating a simple dry step through jetting steam and a hot blast in an inner part of a drum, thereby reducing time of laundering operation. A drier having a steam injection apparatus comprises a cabinet(50) where an intake port and a discharge outlet are formed; a drum(60) where the laundry is stored; a driving motor(90) connected to the drum; a supporting panel(62) where a backside end of the drum is rotatably combined; an intake pipe(70) extended to the inner side of the drum from a through-hole part; a heater(74) heating air; a case(110) where water is filled; a nozzle(112) correspondently positioned at the through-hole part to allow water to jet into the inner part of the drum; and a removal unit installed between the case and the supporting panel to allow the case to be separated from the supporting panel by the manipulation of users.

Description

Dryer equipped with steam injection device and control method {DRIER HAVING STEAM SPRAY AND CONTROL METHOD THEREOF}

1 is a block diagram showing a dryer according to the prior art.

2 is a perspective view of a dryer according to the prior art.

Figure 3 is a rear perspective view showing the configuration of a dryer according to an embodiment of the present invention.

Figure 4 is a front perspective view showing the configuration of the dryer according to the present invention.

5 is a rear perspective view showing the discharge port of the dryer according to the present invention.

Figure 6 is a front perspective view showing a steam injection device of the dryer according to the present invention.

7 is a front perspective view showing an intake pipe of the dryer according to the present invention.

FIG. 8 is a cross-sectional view taken along the line A-A shown in FIG. 7, showing a intake pipe according to the present invention.

9 is a perspective view showing a steam injection device according to the present invention.

10 is a cross-sectional view showing a steam injection device according to the present invention.

11 is a block diagram showing a steam injection device according to the present invention.

12 is a side sectional view showing a suction flow path of the dryer according to the present invention.

13 is a plan view showing the exhaust passage of the dryer according to the present invention.

14 is a flowchart illustrating a control method of a dryer equipped with a steam spraying device according to the present invention.

<Explanation of symbols on main parts of the drawings>

50: cabinet 52: inlet

54 discharge port 60 drum

62: support panel 62a: through hole

64: gasket 64a: outlet

66: seating portion 66a: supply hole

70: intake pipe 74: heater

80 exhaust pipe 82 exhaust fan

84 housing 86 connector

90: drive motor 96: belt

100: lifter 110: case

112: nozzle 112a: inlet

112b: exit 114: injection pipe

116: hook 118: stopper

The present invention relates to a dryer, and in particular, by allowing steam to be injected into a drum in which laundry is stored, it is possible to inject hot hot air and steam to clothes stored in the drum so that the smell of clothes stored in a closed space for a long time and The present invention relates to a drier equipped with a steam spraying device capable of removing wrinkles and a control method thereof.

In general, the clothes drying apparatus is a device for drying clothes by blowing the drying hot air heated in the heater in the receiving space containing the clothes. Such clothes drying apparatus is disclosed in Korean Patent Publication No. 10-2005-0061878.

1 is a schematic configuration diagram showing an air flow inside a dryer according to the prior art, and FIG. 2 is a partially cutaway perspective view of the dryer according to the prior art.

1 and 2, the disclosed dryer forms an exterior of the dryer and has a case 2 formed on the front of a dry matter entrance, and is rotatably disposed inside the case 2 and has a dry matter therein. The drum 12 opened in the front-rear direction so that the air passes therethrough, the heater 18 disposed inside the case 2 to heat the sucked air, and the heating passed through the heater 18. An intake duct 20 for guiding air to the rear of the drum 12, an exhaust means 22 for discharging the turbid air while drying the object to the outside of the case 2, and the exhaust means 22 Blowing fan (not shown) installed in the), and the motor (not shown) and the belt 40 for driving the drum 12 and the blowing fan to rotate.

The drum 12 is disposed on the inner circumferential surface of the lift 11 for lifting and dropping the object.

The exhaust means 22 has a lint duct 25 through which air in the drum 12 is sucked and a filter 24 is mounted to filter foreign matter, and the lint duct 25 communicates with the blower fan 30. It consists of a fan housing 26 enclosing the exhaust housing and an exhaust duct 27 having one end communicating with the fan housing 26 and the other end disposed outside the case 2.

Looking at the operation of the prior art configured as described above are as follows.

First, after the object is put into the drum 12, the door is closed and the dryer is operated. As the motor is driven, the drum 12 and the blowing fan rotate, and the heater 18 is also operated. Done.

At this time, as the drum 12 is rotated, the dry matter in the drum is lifted by the lift 11 and then dropped. In addition, the outside air is heated by high temperature and low humidity air while being sucked into the inside of the heater 18 by the blowing force generated when the blowing fan is rotated, and then the inside of the drum 12 through the intake duct 20. Is discharged.

After the high temperature and low humidity air supplied into the drum 12 is in direct contact with the object to be dropped, the air is dried and moved to the front end side of the drum 12 while being converted into air of low temperature and high humidity. It is discharged out of the dryer through the exhaust duct 27.

However, since the dryer according to the prior art supplies only the hot hot air to the laundry stored in the drum, the drying operation may be performed to remove the moisture of the laundry which has been washed, but it is stored in a closed space for a long time, causing wrinkles and smells. Without washing clothes, wrinkles and odors cannot be removed, so even clothes that are not required to be washed have a problem of drying after washing. Therefore, there is a need for improvement.

The present invention has been made to solve the above problems of the prior art, by allowing the steam to be injected into the drum, the washing operation is not required, but is stored in a closed space for a long time to the smell and wrinkles formed clothes steam It is an object of the present invention to provide a dryer and a method of controlling the same, which are provided with a steam spraying device capable of simultaneously supplying hot air with high temperature to remove wrinkles and odors formed on clothes.

Dryer provided with a steam spraying device according to the present invention for solving the above problems is formed with an opening on one side, the door is installed, the cabinet formed with the inlet and outlet, rotatably installed inside the opening to accommodate the laundry A drum, a drive motor connected to the drum, a support panel installed on the inner wall of the cabinet, having a through hole formed therein, and a rear end of the drum rotatably connected to the drum, and an intake pipe extending from the through hole to the inside of the cabinet. A heater installed inside the intake pipe to heat the air supplied to the drum, a case detachably installed in the through hole, and containing water, disposed in correspondence with the through hole, and one side communicating with the case. When the air supplied from the through-hole portion passes, a vacuum is formed inside the case so that water It characterized in that it comprises a nozzle for injecting into the drum, and a removable means for being installed between the case and the support panel to separate the case from the support panel by the user's operation.

In addition, the through-hole portion of the present invention is characterized in that the seating portion is formed is inserted into the case.

In addition, the seating portion of the present invention is characterized in that the supply hole is formed on one side corresponding to the nozzle.

In addition, the case of the present invention is characterized in that the injection port and the stopper is provided on one side is supplied with water, the steam is injected along the nozzle that is integrally installed on the upper surface.

In addition, the nozzle of the present invention is characterized in that the inlet corresponding to the through-hole portion has a relatively large diameter compared to the outlet corresponding to the inside of the drum.

In addition, the nozzle of the present invention is characterized in that the injection pipe extending inwardly of the case is formed.

In addition, the detachable means of the present invention is characterized in that it comprises a pair of hooks formed on one side of the case, and the insertion hole is formed in the seating portion corresponding to the hook is inserted into the hook.

In addition, the dryer provided with a steam spraying device according to the present invention is a humidity sensor to detect the humidity inside the drum and the humidity sensor to detect the humidity in the drum or more than the set value and to transmit an electrical signal, the signal input from the humidity sensor The control unit for cutting off the power of the drive motor and the heater according to the control unit further comprises a display unit for outputting a signal of completion so that the user recognizes when the power is cut off the drive motor and the heater by the control unit; do.

In addition, the control method of the dryer equipped with a steam injector according to the present invention is equipped with a case filled with water on the drum inner wall, the preparation step for storing the laundry in the drum, when the preparation step is completed by the user operating the operation button Since power is applied to the driving motor and the heater, a sterilization step in which hot air supplied by the heater heats water in the case so that hot steam is injected into the drum, and the drum is in progress during the sterilization step. A determination step of detecting whether an internal humidity is greater than or equal to a set value, and when the humidity in the drum is greater than or equal to a predetermined value, power to the driving motor and the heater is cut off, and a finishing step of outputting a termination signal is performed. There is a characteristic.

Hereinafter, with reference to the accompanying drawings an embodiment of a dryer provided with a steam injection device according to the present invention will be described in detail. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intention or precedent of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

3 is a rear perspective view showing the configuration of the dryer according to the present invention, Figure 4 is a front perspective view showing the configuration of the dryer according to the present invention, Figure 5 is a suction port of the dryer according to the present invention And a rear perspective view showing the discharge port.

3 to 5, the dryer according to the present invention forms a predetermined space, an opening is formed at one side, and a cabinet 50 having an inlet 52 and an outlet 54 is rotatable inside the opening. The drum 60 is installed to accommodate the laundry, a plurality of lifters 100 installed on the inner wall of the drum 60 to rotate the laundry, and air in the cabinet 50 to be guided into the drum 60. An intake pipe 70, a heater 74 provided in the intake pipe 70, an exhaust fan 82 provided between the drum 60 and the discharge port 54, and the exhaust fan 82. And a drive motor 90 connected between the exhaust pipe 80 provided between the discharge port 54 and the rotation shaft of the exhaust fan 82.

Thus, when the power is applied to the drive motor 90 by the user's operation, the exhaust fan 82 is rotated to circulate air, and the air introduced through the suction port 52 is hot while passing through the heater 74. The air is converted into air and supplied into the drum 60, and the drying operation or sterilization operation of the clothes is performed while contacting the clothes in the drum 60.

Thereafter, the air discharged by the exhaust fan 82 is discharged to the outside through the discharge port 54 of the cabinet 50 along the discharge pipe 80, thereby circulating the air.

Here, the suction port 52 and the discharge port 54 are formed at the bottom of the rear surface of the cabinet 50, as shown in Figure 5, the discharge port 54 is formed in the center, the suction port 52 is one side edge It is formed on the side.

In addition, the drum 60 is formed in a cylindrical shape in which the front and rear surfaces thereof are opened, and the front surface thereof is rotatably installed in the support panel 62 having the through hole portion 62a formed therein.

Here, the support panel 62 is installed on the rear inner wall of the cabinet 50 so that the drum 60 can be rotatably supported, and the intake pipe 70 is installed in the through hole portion 62a.

In addition, as shown in FIG. 7, the drum 60 is provided with a gasket 64 between the front end and the opening of the cabinet 50, and a discharge port 64a is provided at the lower end of the gasket 64. Is formed.

An extension tube 86 facing the exhaust fan 82 is provided at the discharge port 64a, and a housing 84 in which the exhaust fan 82 is rotatably embedded between the extension tube 86 and the exhaust pipe 80. ) Is installed.

The intake pipe 70 is a passage extending from the suction port 52 to an upper portion of the rear surface of the cabinet 50 corresponding to the through hole part 62a, so that air introduced from the inside of the cabinet 50 is heated by a heater ( While passing through 74, the air is converted to air above a predetermined temperature, and is moved along the intake pipe 70 to the upper side of the cabinet 50, and is introduced into the drum 60 through the through hole part 62a.

At this time, as the drum 60 connected to the drive motor 90 and the belt 96 rotates, the contact area of the laundry with hot air is increased, so that drying or sterilization of the laundry is performed.

Here, the heater 74 is installed inside the intake pipe 70 disposed outside the cabinet 50, so that the heater 74 and the drum are compared with the conventional technology in which the heater 74 is installed inside the cabinet 50. The distance between 60 is minimized.

As a result, the heat loss generated while the air heated above the predetermined temperature by the heater 74 moves along the intake pipe 70 may be minimized, thereby maximizing the efficiency of the dryer.

In addition, since the heater 74 is installed outside the cabinet 50, the heater 74 is disposed in a separate space from the drive motor 90 which is easily overheated, and thus the inside of the cabinet 50 may be prevented from being overheated more than necessary. An effect that can prevent the malfunction and breakage of the dryer due to overheating of 90) occurs.

6 is a front perspective view showing a steam injector of the dryer according to the present invention, Figure 7 is a front perspective view showing the intake pipe of the dryer according to the invention, Figure 8 is a cross-sectional view taken along line AA in FIG. It is a cross-sectional view showing an intake pipe according to the present invention.

6 to 8, the steam jet device according to the present invention is disposed to correspond to the case 110 and the through-hole part 62a, which are detachably installed in the through-hole part 62a to contain water, One side is in communication with the case 110 when the air supplied from the through-hole portion 62a passes through the nozzle 112 to form a vacuum in the case 110 so that water is injected into the drum 60 and And detachment means (66b, 116) installed between the case (110) and the support panel (62) to separate the case (110) from the support panel (62) by a user's operation, and the drum ( 60) the humidity sensor 120 to sense the humidity inside the drum 60 is more than the set value, the humidity sensor 120 to detect and transmit an electrical signal, the drive according to the signal input from the humidity sensor 120 Power off the motor 90 and the heater 74 And a display unit 124 for outputting a signal of completion so that the user recognizes when the power is cut off by the control unit 122 and the driving motor 90 and the heater 74 by the control unit 122. .

Here, the through hole portion 62a is provided with a seating portion 66 into which the case 110 is inserted, and the seating portion 66 has a supply hole portion 66a at one side corresponding to the nozzle 112. Is formed.

As a result, the air flowing into the drum 60 along the intake pipe 70 is converted into high temperature dry air having a predetermined temperature or more while passing through the heater 74 and flows into the drum 60 through the through-hole part 62a. At this time, the hot air is in contact with the case 110 to heat the water contained in the case 110 to a predetermined temperature or more to generate steam, the air flowing into the supply hole 66a is a nozzle 112 While passing through the steam formed in the case 110 to be injected into the drum (60).

9 is a perspective view showing a steam injection device according to the present invention, Figure 10 is a sectional view showing a steam injection device according to the present invention, Figure 11 is a block diagram showing a steam injection device according to the present invention.

9 to 11, the case 110 is provided with an injection hole and a stopper 118 on one side to supply water, and to inject steam along the nozzle 112 that is integrally installed on the upper surface.

In addition, the nozzle 112 is formed of a relatively wide diameter of the inlet 112a corresponding to the through hole part 62a compared to the outlet 112b corresponding to the inside of the drum 60, and the case 110. Injection tube 114 extending inwardly is formed.

As a result, when the user opens the stopper 118 to fill the case 110 with water, closes the stopper 118 and inserts the case 110 into the seating part 66. Installed inside the hole portion 62a, and when the drying operation is performed, air supplied into the drum 60 through the supply hole portion 66a passes through the nozzle 112, where the inlet 112a of the nozzle 112 is located. Due to the difference in diameter between the outlet 112b and the air passing through the nozzle 112, the speed is accelerated to a predetermined speed or more and is injected into the drum 60.

At this time, since the air passing through the nozzle 112 forms a vacuum in the case 110 by the Venturi effect, steam formed in the case 110 flows to the nozzle 112 along the injection pipe 114 and accelerated. As it is injected into the drum 60 together with air, the drum 60 comes into contact with clothes stored in the drum 60.

The detachable means includes a pair of hooks formed on one side of the case, as shown in FIGS. 8 and 10, and an insertion hole part in which the hooks are formed and the hooks are inserted. .

By this configuration, when the user inserts the case 110 into the seating portion 66, the pair of hooks 116 are deformed inward and coupled to the insertion hole 66b, and after the coupling of the case 110 is completed. As the hook 116 is restored to its original state, the departure of the case 110 is prevented.

Looking at the operation of the dryer provided with a steam injection device according to the present invention configured as described above are as follows.

12 is a side sectional view showing a suction flow path of the dryer according to the present invention, FIG. 13 is a plan view showing an exhaust flow path of the dryer according to the present invention, and FIG. 14 is a view illustrating a dryer having a steam spraying device according to the present invention. The control method is shown in a flowchart.

12 to 14, a control method of a dryer equipped with a steam spraying device according to the present invention includes mounting a case 110 filled with water on an inner wall of a drum 60, and storing laundry in the drum 110. When the preparation step (S10) and the preparation step (S10) is completed, the user operates the operation button 126 so that power is supplied to the drive motor 90 and the heater 74 is supplied by the heater 74 The sterilizing step (S20) and the sterilization step (S20) during the sterilization step (S20) and the hot air is heated to heat the water inside the case 110 to be injected into the drum (60). 60) a determination step (S30) of detecting whether the humidity of the inside of the predetermined value or more, and if the humidity of the drum 60 or more in the determination step (S30) of the predetermined value or more the drive motor 90 and the heater 74 Including the finishing step (S40) that the power is cut off, the signal of the end is output Lose.

Here, in the preparation step (S10), the user separates the stopper 118 from the case 110 to fill the water inside the case 110, and opens the door of the cabinet 50 to the case (the support panel 62) By storing the 110, the preparation step S10 is performed. When the case 110 is inserted into the seating portion 66, the hook 110 is fitted into the insertion hole 66b while the case 110 is mounted.

The sterilization step (S20) is started by the user operating the operation button 126. When power is applied to the driving motor 90, the exhaust fan 82 and the drum 60 are rotated by the driving of the exhaust fan. The air introduced into the drum 60 along the intake port 52 passes through the intake port 52 and then along the intake pipe 70 formed long in the vertical direction on the rear surface of the cabinet 50 as shown in FIG. 12. It moves to the upper side of the cabinet 50, and is heated by the heater 74 by high temperature dry air more than a predetermined temperature at this time.

Thereafter, the air introduced into the drum 60 through the through-hole part 62a flows in a tornado shape and contacts the laundry to perform a drying operation. At this time, the hot air passing through the through hole portion 62a converts the water inside the case 110 into steam, and the air passing through the nozzle 112 through the supply hole portion 66a is inside the case 110 by a venturi effect. By allowing the vacuum to be formed in the steam, the steam inside the case 110 flows along the injection pipe 114 and is injected into the drum 60 through the outlet 112b of the nozzle 112.

In addition, the outlet 64a is formed in the gasket 64 provided between the opening of the drum 60 and the inner wall of the cabinet 50, and the air which has undergone the drying operation is discharged to the outside of the drum 60 along the outlet 64a. It is discharged, flows through the connecting pipe (86) in communication with the discharge port (64a) to the housing (84) of the exhaust fan 82, is moved along the exhaust pipe (80) from the housing (84) through the discharge port (54) Discharged to the outside of the cabinet 50.

In addition, the determination step (S30) is to detect the humidity inside the drum 60, if the humidity above the set value is formed in the drum 60 to detect the bar so that the electrical signal is transmitted from the humidity sensor 120 When the humidity is less than or equal to the set value, power is supplied to the driving motor 90 and the heater 74 so that hot air and steam are sprayed onto the clothes accommodated inside the drum 60 to remove wrinkles formed on the clothes, and to remove odor particles and Because bacteria are removed, wrinkles, odors and bacteria can be removed from clothes that have been stored for a long time in a confined space.

The finishing step (S40) is a step of ending the sterilization step (S30), when the humidity is detected above the set value in the humidity sensor 120, an electrical signal from the humidity sensor 120 is transmitted to the control unit 122, the control unit 122 The power is cut off from the driving motor 90 and the control unit 122 in accordance with the signal of), the sterilization step (S30) is terminated.

At this time, the output from the display unit 124 by a signal transmitted from the control unit 122, the display unit 124 is composed of a conventional sound generating device or a lamp, the user confirms the end signal sound or the lighting of the lamp to dry And it can be seen that the sterilization operation is completed.

Of course, in the above-described preparation step (S10), if the case 110 is omitted to install the inside of the drum 60 and only the laundry is stored in the drum 60, the drying operation is performed in a conventional dryer.

As a result, a dryer and a method of controlling the same have a steam spraying device which can remove wrinkles, odors and bacteria formed on clothes by spraying hot air and steam without washing clothes that have been stored for a long time in a closed space. Can be.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand. In addition, although a description has been given taking a dryer equipped with a steam spraying device as an example, this is merely exemplary, and the steam spraying apparatus of the present invention may be used in another steam spraying apparatus other than the steam spraying apparatus used in the dryer. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

Dryer equipped with a steam spraying device according to the present invention configured as described above and a control method thereof is not required to wash because the steam spraying device can be installed inside the drum by the user's operation, but to remove wrinkles and smell Because clothes can be stored inside the drum to inject hot air and steam, washing operations are omitted when removing wrinkles, odors, and bacteria from clothes stored in an enclosed space for a long time. And it can remove the smell, bacteria, there is an advantage that can reduce the time and cost required for the laundry operation.

Claims (9)

A cabinet having an opening formed at one side thereof and having a door formed therein; A drum rotatably installed inside the opening to accommodate laundry; A drive motor connected to the drum; A support panel installed on the inner wall of the cabinet, and having a through hole formed therein and rotatably connected to the rear end of the drum; An intake pipe extending from the through hole to the inside of the cabinet; A heater installed inside the intake pipe to heat air supplied into the drum; A case which is detachably installed in the through hole and contains water; A nozzle disposed to correspond to the through hole and having one side communicating with the case so that air is supplied from the through hole so that a vacuum is formed in the case so that water is injected into the drum; And And a detachable means installed between the case and the support panel to detach the case from the support panel by a user's operation. The method of claim 1, The through-hole part is provided with a steam injection device, characterized in that the seating portion is formed is inserted into the case. The method of claim 2, The seating unit is provided with a steam injection device, characterized in that the supply hole is formed on one side corresponding to the nozzle. The method of claim 1, The case is provided with an injection hole and a stopper is installed on one side of the dryer is provided with a steam injection device, characterized in that the steam is injected along the nozzle that is integrally installed on the upper surface. The method of claim 1, The nozzle is provided with a steam injector, characterized in that the inlet corresponding to the through-hole portion has a relatively large diameter compared to the outlet corresponding to the inside of the drum. The method according to claim 1 or 5, The nozzle is provided with a steam injection device, characterized in that the injection pipe extending to the inside of the case is formed. The method of claim 1, The detachable means includes a pair of hooks formed on one side of the case, the hook is formed in the seating portion corresponding to the steam injection device characterized in that it comprises an insertion hole for inserting the hook dryer. The method of claim 1, Humidity inside the drum is sensed, if the humidity in the drum is higher than the set value to detect the humidity sensor to transmit an electrical signal, and to shut off the power of the drive motor and the heater in accordance with the signal input from the humidity sensor And a display unit for outputting a signal of completion so that the user recognizes when the power is cut off from the control unit and the driving motor and the heater by the control unit. Mounting a case filled with water on the drum inner wall, and storing laundry in the drum; When the preparation step is completed, the user operates the operation button so that power is supplied to the driving motor and the heater so that the hot air supplied by the heater heats the water in the case so that the hot steam is injected into the drum. Sterilization step; A determination step of detecting whether the humidity inside the drum is greater than or equal to a predetermined value during the sterilization step; The control method of the dryer is provided with a steam injection device comprising a closing step of the power is cut off to the drive motor and the heater, the end signal is output when the humidity in the drum is greater than the set value in the determination step.

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