KR100607282B1 - Drying duct of a drum-typed washing machine - Google Patents

Abstract

Drying duct of the drum washing machine according to the present invention is a drying fan in which the outside air of the washing machine is introduced into the drum, a blowing fan for sucking the outside air, a heater for heating the air sucked into the blowing fan, the passage through which the air passes And a vapor screen formed in a portion of the flow path to block backflow of water vapor from the drum.

It is possible to prevent the high temperature water vapor from flowing back into the cabinet or interior of the washing machine through the drying duct during the high temperature washing through the above apparatus. As a result, the life of the system due to steam generated during washing can be suppressed and the reliability of the product can be ensured.

Steam screen, drum washing machine

Description

Drying duct of a drum-typed washing machine

1 is a perspective view showing a drum washing machine equipped with a blowing fan drive system according to the spirit of the present invention.

2 is a cross-sectional view of a drum washing machine to which the idea of the present invention is applied.

Figure 3 is a perspective view of a drum washing machine to remove the up cover to represent a drying duct.

4A and 4B illustrate the operation of the vapor screen.

5 is a perspective view of the vapor screen;

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

100: drum washing machine 105: up cover 110: cabinet

120: front cover 130: door 140: control panel

150: detergent box 200: dial knob 210: water tank

220: dehydration 230: drum 240: motor

250: air intake 260: exhaust 270: blower fan

280: heater 290: euro 295: steam screen

300: drying duct 310: drying duct outlet 360: gasket

400: main body 410: rotary shaft 420: hinge

430: hinge

The present invention provides a washing / drying combined-use washing machine, wherein a steam screen is provided inside the washing machine, and drying of the drum washing machine prevents high temperature water vapor generated inside the drum from being introduced into the cabinet or the room through the drying duct. It is about a duct.

Conventional condensation type washing / dual drum washing machine includes a heater for heating air, a blowing fan for introducing the air heated by the heater into the drum through a drying duct, a condensation duct for condensing the introduced air, and circulation It consists of a condensate supply hose that supplies condensate to the duct.

In the conventional washing machine configured as described above, the hot air heated by the heater is forcedly circulated by the blowing fan to flow into the drum, thereby heating the laundry in the drum to evaporate moisture. To remove the evaporated water, the humid air inside the washing tank is passed through the condensation duct and sucked into the cold fan as it is sucked into cold water. Moisture inside is removed.

In order to perform the drying function of the laundry, the condensation duct is designed so that wet air and cold water collide with each other, and a drying device is constructed by connecting a tub and a blowing fan.

That is, as mentioned above, the condensation type washing / dry combined washing machine forms a closed loop, whereas the present invention exhaust type washing / dry combined washing machine has a drying module having an open loop. It is a loop.

However, the drying air supplied to the laundry for drying is introduced into the washing machine to form a flow path that is heated through the heater of the dry duct and exhausted through the laundry. Unlike drying, the drying module stops operating during washing. Water vapor generated during high temperature washing may flow out of the drum and drying duct through an open flow path. The outflow path can be divided into two types, one is the path through which the inside of the cabinet and the washing machine is installed through the drying duct, and the other is the path through the exhaust duct to the exhaust pipe. The second route is the space where the hot air used for drying is discharged, so there is no restriction on the additional discharge of steam.However, water vapor that flows out of the cabinet and the washing machine installation space through the drying duct may have a negative effect on the washing machine and the room. have. If the leaked water vapor reaches the inside of the cabinet, condensate may be generated on the cold surface, and a serious result such as a fire may be caused when the condensate is generated at an electrical control panel.

The present invention has been made in order to solve the above problems, it is an object to block the steam generated during the high temperature washing in the exhaust drum washing / dryer to enter the interior of the cabinet, or indoors through the drying duct. .

More specifically, it is an object of the present invention to provide a drum washing machine having a steam screen in the drying duct to prevent water vapor inside the drum from flowing back through the drying duct.

Drying duct of the drum washing machine according to the present invention for achieving the above object is a blowing fan for sucking the outside air in the drying duct in which the outside air of the washing machine is introduced into the drum, the air sucked into the blowing fan is heated A heater, a flow path through which the air passes, and a steam screen formed in a portion of the flow path to block backflow of water vapor from the drum.

Through the structure as described above it is possible to suppress the deterioration of the life of the system by the steam generated during washing, and to ensure the reliability of the product.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the present embodiment, and other embodiments included within the scope of the present invention and other regressive inventions are easily proposed by adding, changing, or deleting other components. Can be.

1 is a perspective view showing a drum washing machine equipped with a blowing fan drive system according to the spirit of the present invention.

Referring to FIG. 1, a drum washing machine 100 equipped with a blower fan 270 driving system according to the present invention includes a cabinet 110 forming an appearance and a front cover mounted on a front portion of the cabinet 110. 120 and an up cover 105 to protect an upper side of the drum washing machine.

In more detail, the door 130 is mounted to the central portion of the front cover 120, and the dial knob 200 and various display units are mounted on the upper side of the front cover 120 to input washing conditions. The control panel 140 and a detergent box 150 mounted on the side of the control panel 140 to store detergent are included.

On the other hand, the dial knob 200 and the control panel 140 is not limited to the upper portion of the front cover 120 as described above, it may be formed on one side of the up cover 105. In addition, the detergent box 150 is also not limited to being formed on the side of the control panel 140 and may be formed in a direction in which detergent can be injected downward in one side of the up cover 105. However, the present invention is not limited thereto, and a drum washing machine including a steam screen 295 in various types of drying ducts 300 may be proposed.

Hereinafter, the operation of the drum washing machine 100 having the above configuration will be described.

A user opens the door 130, injects laundry into the drum, and then closes the door 130. Then, the dial knob 200 is operated to input washing conditions and press an operation button. Then, the washing water flows into the detergent box, and the washing water in which the detergent is dissolved flows into the drum to perform washing.

When the washing condition is input, the user may add and set a drying function, and at this time, the drum washing machine that has finished all the washing may dry the laundry.

The drum washing machine according to the spirit of the present invention at the time of drying has a problem in that a high-temperature steam inside the drum may be finely discharged on the drying duct 300 by adopting an exhaust type rather than a conventional condensation type.

In order to solve the above problems, the drum washing machine having the idea of the present invention is provided with a steam screen 295 inside the drum washing machine drying duct 300 such that high temperature steam does not leak into the washing machine internal cabinet 110 or the room. Do not Hereinafter, the vapor screen 295 provided in the drying duct 300 will be described later.

2 is a cross-sectional view of a drum washing machine to which the idea of the present invention is applied.

Referring to FIG. 2, the drum washing machine has an air suction port 250 that sucks air outside the drum washing machine, and is formed on the air suction port 250 to blow air introduced through the air suction port 250 into the drum. A blowing fan 270 to be put in, a passage 290 through which the air passing through the blowing fan 270 passes, and a heater 280 formed at a portion of the passage 290 to heat the air to a high temperature; An outlet of the drying duct 300 through which the air passing through the flow path 290 enters the drum washing machine is included.

The blowing fan 270, the flow path 290, the heater 280, and the drying duct 300 are referred to as drying ducts, and the drying duct 300 serves to connect the drum of the drum washing machine with the outside air. do. In order to prevent this, the steam screen 295 is formed on the flow path 290 because the hot water vapor flows out through the drying duct 300 during washing.

Looking at the internal structure of the drum washing machine in addition to the drying duct 300, the drum through which the washing or drying of the laundry passes through the outlet of the drying duct 300 and a motor 240 formed at the rear of the drum to rotate the drum Included.

In more detail, a plurality of dehydration holes 220 are drilled on the outer circumferential surface of the drum, and the water of the laundry is discharged during drying through the dehydration holes 220. On the other hand, the outer circumferential surface of the drum is surrounded by the reservoir 210, the exhaust port 260 is formed to discharge the air after drying to one side of the reservoir 210. The exhaust port 260 is formed by passing through one side portion of the cabinet 110 surrounding the outside of the drum washing machine, and a door 130 for opening and closing the drum washing machine is formed at one central portion of the cabinet 110. A gasket 360 is formed at the lighter portion of the door 130 and the drying duct 300.

Looking at the operation during the drying of the drum washing machine, the air entered into the washing machine through the air suction port 250 is moved in the flow path 290 under the influence of the blowing fan 270 is formed in a portion of the flow path 290 It is heated by the heater 280. The heated hot air diffuses through the inlet into the drum and the diffused air dries the laundry inside the drum. Low temperature and humid air after drying the laundry is discharged to the outside through the exhaust port 260 formed on one side of the drum.

When drying as described above, the outside air is introduced into the door 130 through the drying duct 300, the air flow is formed in the drum from the outside of the washing machine, the amount of wash water present in the drum This is less likely to cause backflow of water vapor. For this reason, it is not necessary to install the steam screen 295 inside the drying duct 300 as in the present invention, but when washing, there is a high possibility that the high temperature water vapor flows back and the need for the steam screen 295 increases.

Figure 3 is a perspective view of the drum washing machine to remove the up cover to represent a drying duct.

Referring to FIG. 3, an air inlet 250 through which air is sucked from the outside is formed at one side of a rear side of a drum washing machine, and a blower fan 270 and an air intake port formed at an upper side of the air inlet 250. The flow path 290 and the heater 280 extending from the 250 is formed to extend in front of the upper side of the drum washing machine. The hot air passing through the heater 280 through the flow path 290 is introduced into the drum through the upper inlet of the drum washing machine, and a vapor screen 295 is formed on the flow path 290 to prevent backflow of water vapor.

Since the steam screen 295 is made of stainless steel and may be deformed at a high temperature, the vapor screen 295 may be formed between the relatively low temperature blowing fan 270 and the heater 280. In more detail, the outside air introduced into the washing machine through the blowing fan 270 changes to high temperature while passing through the heater 280 formed on the flow path 290 of the drying duct 300. When the vapor screen 295 is formed on the flow path 290, backflow of water vapor is prevented without difficulty in the vapor screen 295,

However, when manufacturing the steam screen 295 made of a material resistant to high temperatures, the position of the steam screen 295 is not limited to the above example, but is a rear end of the drying duct, more specifically, the heater 280 and the drying duct. It can be formed in the middle portion of the outlet 310.

Operation of the vapor screen 295 in the drying duct 300 is described below in FIGS. 4A and 4B.

4A and 4B illustrate the operation of the steam screen, where FIG. 4A shows the steam screen open and FIG. 4B shows the steam screen closed.

4A and 4B, the present invention is largely the same as that of FIG. 3, and will be described below in terms of differences between the two figures.

Referring to Figure 4a and 4b with respect to the operation of the steam screen 295 in the drying duct 300, when the washing machine enters the washing conditions and press the operation button wash water flows into the detergent box, washing water dissolved detergent The washing flows into the drum. The temperature of the wash water can be changed according to the washing machine's adjustment, but hot water is used, in which the solubility of the detergent is high and the time is easily removed.

In the washing, the drum washing machine 100 according to the spirit of the present invention adopts an exhaust type rather than a conventional condensation type so that a small amount of hot steam evaporated from the washing water inside the drum flows through the drying duct 300. In order to solve the above problems, a steam screen 295 is provided in the drying duct 300 inside the drum washing machine 100 to prevent hot steam from leaking into the washing machine inner cabinet 110 or the room.

In more detail, a steam screen 295 is installed to prevent water vapor generated from the hot washing water from passing through the drying duct 300 and into the interior or the interior of the cabinet 110. The vapor screen 295 is closed at the time of washing and is opened by the air injected from the blowing fan 270 at the time of drying the laundry.

Referring to FIG. 4A, when the laundry is dried, the steam screen 295 is opened by the pressure of the air flowing from the blower fan 270. In more detail, the steam screen is rotated around the hinge formed at the upper portion of the flow path 290 of the drying duct 300, and is opened at a predetermined angle according to the weight and air hydraulic pressure of the steam screen.

Referring to FIG. 4B, when the laundry is washed, the blowing fan 270 is not operated and there is no air flowing from the blowing fan 270. Thus, the vapor screen 295 is perpendicular to the flow path 290 of the drying duct 300. On the other hand, the steam screen is introduced so that the steam screen is not opened in the direction in which the blowing fan is formed under the influence of water vapor flowing from the washing water inside the drum 230, the opening direction of the steam screen is limited by the influence of the device.

5 is a perspective view of the vapor screen.

Referring to FIG. 5, the steam screen 295 includes a rectangular main body 400 and a hinge formed at both ends of the rotary shaft 410 parallel to the upper edge of the main body 400. A hinge 430 is included between the earth 420 and the center hole of the hinge 420 to allow the main body 400 to rotate about the rotation shaft 410.

In more detail, in order to completely block backflow of water vapor, a main body 400 corresponding to the length and width of the flow path 290 of the drying duct 300 is formed, and one side of the main body 400 and the drying duct 300 is formed. Hinge 430 is connected to the hinge 430 and the hinge 430 can be moved without friction.

Through such a system, during the high temperature washing, it is possible to prevent the high temperature water vapor from flowing back to the inside or inside the cabinet of the washing machine through the drying duct.                     

In addition, the life of the system due to steam generated during washing can be suppressed and the reliability of the product can be ensured.

Claims (8)

A blowing fan into which outside air is sucked; A heater to which air sucked from the blower fan is heated; A flow path through which the heated air passes; And Drying duct of the drum washing machine includes a steam screen connected to the upper portion of the passage by a hinge rotatable about the hinge. The method of claim 1, The steam screen is a drying duct of the drum washing machine, characterized in that formed between the blower fan and the heater of the drying duct. The method of claim 1, And the steam screen is formed between a heater formed in a portion of the drying duct and the outlet of the drying duct. The method of claim 1, The vapor screen is a drying duct of the drum washing machine, characterized in that by the countercurrent water vapor is not opened in the opposite direction to the opening direction. The method of claim 1, The steam screen is formed in the same size as the width of the flow path of the drum washing machine, characterized in that the water vapor is blocked back flow. The method of claim 1 The steam screen is made of a light material, the drying duct of the drum washing machine, characterized in that the opening by a predetermined angle or more by the air flowing into the blowing fan. The method of claim 1, The steam screen is a drying duct of the drum washing machine, characterized in that for blocking the flow path when the blowing fan is not operated. A drying duct through which heated air is discharged; A main body formed inside the drying duct and blocking a backflow of water vapor through the drying duct; A rotating shaft formed on one side of the main body to become an axis in which the main body rotates, A hinge connecting the steam screen to a drying duct, Drying duct of the drum washing machine including a hinge that the hinge is inserted and rotated.

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