KR100784713B1 - Dryer having indrawn tube with heater - Google Patents

Abstract

A dryer is provided to prevent overheat of a drum by forming an inlet hole at an intake pipe such that the high temperature air passed through a heater is mixed with outdoor air and supplied into the drum. A dryer includes a cabinet(50), a drum(60), a support panel(62), an intake pipe(70), a heater(74), and an inlet hole(110). The cabinet has one side with an opening where a door is mounted. The cabinet has an inlet port and an outlet port. The drum is arranged in the cabinet such that the drum receives laundry and is rotatable. The support panel is mounted on an inner wall of the cabinet, and has a through hole. The drum is connected to the support panel. The intake pipe is extended into the cabinet from the through hole. The heater is arranged at one side of the intake pipe and disposed outside the cabinet, and heats air supplied into the drum. The inlet hole is formed at the intake pipe so as to suck air from the outside of the cabinet.

Description

Dryer with intake pipe with heater {DRYER HAVING INDRAWN TUBE WITH HEATER}

1 is a configuration diagram showing a flow path structure of a dryer according to the prior art.

Figure 2 is a partial cutaway 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 a dryer according to an embodiment of the present invention.

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

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

FIG. 7 is a cross-sectional view taken along the line A-A shown in FIG. 6, and is a cross-sectional view showing an intake pipe according to an embodiment of the present invention.

Figure 8 is a side cross-sectional view showing a suction flow path of the dryer according to the present invention according to an embodiment of the present invention.

9 is a plan view showing the exhaust passage of the dryer according to an embodiment of 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: inlet hole

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dryer, and more particularly, to a dryer having a heater-intake pipe that prevents overheating more than necessary by reducing heat loss and allowing external air to flow by improving the flow path of air injected into the drum. will be.

1 is a configuration diagram showing a flow path structure of a dryer according to the prior art, Figure 2 is a partial cutaway perspective view showing a dryer according to the prior art.

1 and 2, the dryer according to the prior art forms the exterior and the case 2 is formed in the front and back to the door, the inside of the case (2) rotatably disposed and the inside of the dry The drum 12, which is accommodated and opened in the front-rear direction to allow air to pass through, the heater 18 disposed inside the case 2 to heat the sucked air, and the heated air passed through the heater 18 The intake duct 20 for guiding the back of the drum 12, the 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, and the motor (not shown) and the belt 40 for driving the drum 12 and the blowing fan rotation.

The drum 12 is disposed on the inner circumferential surface is a lift 11 for lifting the object to drop.

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 used. It works.

At this time, as the drum 12 is rotated, the dry items in the drum are lifted by the lift 11 and then dropped. The outside air is heated by the high temperature and low humidity air while being sucked into the heater 18 by the blowing force generated when the blowing fan is rotated, and then into the drum 12 through the intake duct 20. 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, the dryer according to the prior art is provided with a separate tube extending further from the intake pipe and disposed inside the cabinet, and since the heater is installed inside the tube, the distance between the heater and the drum cannot be reduced below a certain distance. There is a problem that heat loss occurs while the air heated above a predetermined temperature in the flow inside the drum.

In addition, the drier according to the prior art has a problem in that the inside of the cabinet is easily overheated because both the driving motor and the heater which are easily overheated are installed in the cabinet. have. Therefore, there is a need for improvement.

The present invention has been made in order to improve the above problems of the prior art, by improving the flow path of the heated air to minimize heat loss, by causing the heated air and external air to fuse, the malfunction caused by heating more than necessary And it is an object to provide a dryer having a heater built-in intake pipe to prevent damage.

Dryer having a heater-intake pipe according to the present invention for solving the above problems is a cabinet with an opening is formed on one side, the cabinet is formed with an inlet and outlet, rotatably installed inside the opening to accommodate laundry A drum being installed on the inner wall of the cabinet, and having a through hole formed therein, a support panel to which the drum is rotatably connected, an intake pipe extending from the through hole to the inside of the cabinet, and one side of the intake pipe to be disposed outside the cabinet; It is installed on the heater to heat the air supplied to the drum, and is formed in the intake pipe is characterized in that it comprises an inlet hole for allowing the air outside the cabinet to be sucked.

In addition, the inlet hole of the present invention is characterized in that disposed between the heater and the drum.

In addition, the inlet hole of the present invention is characterized in that a portion of the intake pipe is cut.

Hereinafter, with reference to the accompanying drawings an embodiment of a dryer having a heater-intake pipe according to the present invention will be described in detail.

For convenience of explanation, a dryer provided with a heater intake pipe will be described as an example. 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 the intention or convention of a user or an operator.

Therefore, the definitions of these terms should be made based on the contents throughout the specification.

Figure 3 is a rear perspective view showing the configuration of the dryer according to an embodiment of the present invention, Figure 4 is a front perspective view showing the configuration of the dryer according to an embodiment of the present invention, Figure 5 is an embodiment of the present invention A rear perspective view of the discharge port of the dryer according to the example is shown.

6 is a front perspective view illustrating an intake pipe of a dryer according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along line AA of FIG. 6, and a cross-sectional view showing an intake pipe according to an embodiment of the present invention. 8 is a side cross-sectional view illustrating a suction passage of a dryer according to an embodiment of the present invention, and FIG. 9 is a plan view illustrating an exhaust passage of a dryer according to an embodiment of the present invention.

3 to 9, the cabinet 50 forms a predetermined space according to an embodiment of the present invention, an opening is formed at one side, and the suction port 52 and the discharge port 54 are formed, and rotates 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 is guided into the drum 60. The intake pipe 70, the heater 74 provided in the intake pipe 70, the exhaust fan 82 provided between the drum 60, and the discharge port 54, the exhaust fan 82, and the discharge port ( 54, an inlet hole 110 formed between the exhaust pipe 80, the drive motor 90 to which the rotary shaft of the exhaust fan 82 is connected, and the intake pipe 70 to suck the air outside the cabinet 50; It includes.

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.

At this time, the air converted into high temperature air while passing through the heater 74 is mixed with the external air supplied through the inlet hole 110 to maintain a proper temperature, so the intake pipe 70 and the drum 60 are heated more than necessary. Can be prevented.

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 lower end of the rear surface of the cabinet 50, the discharge port 54 is formed in the center, the suction port 52 is formed on one side side.

In addition, the drum 60 is formed in a cylindrical shape with a front surface and a rear surface opened so that the front surface corresponds to the opening portion, and the rear surface is rotatably installed on 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 62a.

In addition, 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 formed at the lower end of the gasket 64.

An extension tube 86 facing the exhaust fan 82 side is installed at the discharge port 64a, and a housing 84 is installed between the extension tube 86 and the exhaust pipe 80 so that the exhaust fan 82 is rotatably embedded. do.

The intake pipe 70 is formed of a passage extending from the intake port 52 to the upper portion of the rear surface of the cabinet 50 corresponding to the through hole portion 62a, so that air flowing from the inside of the cabinet 50 passes through the heater 74. While being converted to air of a predetermined temperature or more and moved to the upper side of the cabinet 50 along the intake pipe 70, it is introduced into the drum 60 through the through-hole portion 62a.

At this time, as the drum 60 connected to the drive motor 90 and the belt 96 is rotated, 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.

In addition, the inlet hole 110 is disposed between the heater 74 and the drum 60, a portion of the intake pipe 70 is cut.

As a result, the hot air passing through the heater 74 is mixed with the outside air that does not pass through the heater 74, thereby suppressing the air injected into the drum 60 from rising above a predetermined value, thereby preventing the drum 60 and the intake pipe. It becomes possible to prevent overheating 70 more than necessary.

Looking at the operation of the dryer according to an embodiment of the present invention configured as described above are as follows.

First, when a drying operation is started by a user's operation, power is applied to the driving motor 90 and the heater 74 so that the exhaust fan 82 and the drum 60 are rotated. Air introduced into the drum 60 along the 52 is moved upwardly of the cabinet 50 along the intake pipe 70 formed long in the vertical direction on the rear surface of the cabinet 50 after passing through the inlet 52. At this time, the heater 74 is heated by high temperature dry air more than a predetermined temperature.

In addition, since the air passing through the heater 74 maintains a proper temperature while being mixed with the outside air supplied from the inlet hole 110, the intake pipe 70 and the drum 60 are overheated more than necessary, thereby causing malfunction and damage. It is possible to prevent the fabric generated or stored in the drum 60 from being damaged.

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.

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 and flows through the connecting pipe (86) communicating with the discharge port (64a) to the housing (84) of the exhaust fan (82), is moved along the exhaust pipe (80) in the housing (84) through the discharge port (54) Discharged to the outside of the cabinet 50.

As a result, the distance between the heater and the drum is minimized, thereby minimizing the heat loss generated by the flow of the heated air from the heater to the drum, thereby achieving a dryer in which thermal efficiency is maximized.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand.

In addition, although a dryer having an intake pipe in which the heater is built has been described as an example, this is merely illustrative, and an intake pipe in which the heater of the present invention is embedded may be used in an intake pipe other than the intake pipe used in the dryer. .

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

In the dryer having a heater-intake pipe according to the present invention configured as described above, the heater is installed inside the intake pipe to reduce the distance between the drum and the heater, thereby requiring a high temperature required inside the drum by a relatively low-capacity heater. There is an advantage that can achieve a unit cost reduction of the dryer by reducing the cost of parts.

In addition, the present invention is formed by the inlet hole in the intake pipe, the hot air after passing the heater and the outside air is supplied to the inside of the drum to prevent the overheating of the drum that may be caused by the distance between the heater and the drum closer There is an advantage that can be carried out a safe drying operation.

Claims (3)

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 support panel installed on the inner wall of the cabinet, and having a through hole formed therein and rotatably connected to the drum; An intake pipe extending from the through hole to the inside of the cabinet; A heater installed at one side of the intake pipe to be disposed outside the cabinet to heat air supplied into the drum; And And an inlet hole formed in the intake pipe to allow air outside the cabinet to be sucked. The method of claim 1, The inlet hole is provided with a heater intake pipe, characterized in that disposed between the heater and the drum. The method of claim 1, The inlet hole is provided with a heater built-in intake pipe, characterized in that a portion of the intake pipe is cut.

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