KR20050105526A - Siphon breaking structure of drum type washing machine with laundry drying function - Google Patents

Abstract

The present invention provides a drying drum washing machine employing a new flow path structure that can improve the drying efficiency and drying performance, and in particular, to provide a siphon phenomenon preventing structure suitable for the characteristics of such a drying drum washing machine.

To this end, the present invention is a hot tub inlet is formed on the front side (front side) and a hot tub discharge formed on the lower side of the rear of the substantially cylindrical tub; A drum rotatably installed in the tub and having a hot air passing hole formed thereon so that hot air passing through the hot air inlet of the tub flows into the drum; A drying duct embedded in a heater and a blowing fan on an inner flow path to generate hot air, and fixed to one side of an outer circumferential surface of the tub; A condensation duct for removing moisture contained in the hot air discharged through the hot air discharge port in the lower rear portion of the tub; A drain hose connected to the bottom of the tub; A drain pump installed on the drain hose; And a siphon brake hose connected between one side of the water pipe and a tub of the drain hose.

Description

Siphon breaking structure of drum type washing machine with laundry drying function}

The present invention relates to a drum washing machine, and more particularly, to provide a siphon prevention device suitable for a dry drum washing machine employing a new flow path structure capable of improving drying efficiency and drying performance.

In general, the drum washing machine is a device for washing laundry by rotating the drum by the driving force of the motor in a state in which detergent, washing water and laundry are put into the drum. The drum washing machine has the advantage of less damage to the laundry and the laundry is not tangled well, knocking and rubbing the washing effect.

Hereinafter, a structural example of a drum washing machine according to the prior art will be described with reference to FIG. 1.

Figure 1 is a side cross-sectional view schematically showing a drum washing machine according to the prior art, the existing drum washing machine is installed in the laundry inlet formed in the front of the cabinet (1; cabinet) so as to open and close the door (2), the cabinet (1) ) Inside the tub 3 is installed to store the wash water.

In the tub 3, a drum 4 having a through hole formed on an outer circumferential surface thereof is rotatably installed, and a motor device 5 transmitting a driving force to the drum 4 outside the tub 3. Is installed.

In addition, the door 2 is provided with a door glass 2a to protrude toward the opening side of the tub 3.

In addition, a hanging spring 6 supporting the tub 2 is installed between the inside of the upper surface of the cabinet 1 and the upper side of the outer peripheral surface of the tub 2, and although not shown, a lower surface of the cabinet 1. A damper (not shown) is provided between the inner side and the lower side of the outer circumferential surface of the tub 2 to damp the vibration of the tub 2 generated when the drum washing machine is operated.

In addition, the motor device 5 is mainly applied to an indirect drive system that rotates the drum 4 by transmitting the driving force generated from the motor 5a to the washing shaft 5c by the belt 5b.

On the other hand, the drying duct 7 is installed on the upper inner surface of the cabinet (1). At this time, the drying duct 7 has a heater 7b and a blowing fan 7a are built in so as to generate and force hot air.

One end of the drying duct 7 is connected to a gasket 8 connecting the front opening edge of the tub 3 and the door periphery of the front of the cabinet 1.

That is, the gasket 8 is installed along the front inner edge of the tub 3 and has a corrugated shape to accommodate the vibration of the tub 3. Accordingly, the hot air is prevented from leaking through the connection portion between the drying duct 7 and the tub 3.

In addition, the tub 3 is provided with a condensation duct 9 to communicate with the drying duct (7). At this time, one end of the condensation duct 9 is connected to the outer surface of the tub 3, the other end of the condensation duct 9 is connected to the drying duct (7). The condensation duct 9 is provided with a water supply 9a for supplying cooling water to condense moisture in the air to remove moisture.

The drum washing machine configured as described above performs washing, rinsing, dehydrating and drying operations.

Hereinafter, the drying operation of the drum washing machine will be described.

When the drying operation of the drum washing machine starts, power is applied to the heater 7b of the drying duct 7. At this time, as the blowing fan 7a and the heater 7b are operated, the blowing fan 7a blows hot air.

The hot air hits the inclined portion of the door glass 2a by the guide of the drying duct 7 and flows into the drum 4.

The hot air introduced into the drum 4 heats the laundry to evaporate moisture contained in the laundry. At this time, by stirring the laundry while the drum 4 is rotated at a low speed, the laundry is evenly exposed to hot air to help evaporation of moisture.

The evaporated water is discharged through the condensation duct 9 while being contained in the air. At this time, water is sprayed from the water supply 9a of the condensation duct 9 to remove moisture in the air. Air dehumidified in this way is introduced into the drying duct (7) and the air introduced into the drying duct (7) is converted into hot air by the heater (7b) and the blowing fan (7a) is reflowed into the drum (4) Drying is performed on the laundry.

The laundry is dried while repeatedly performing this series of procedures.

However, in the conventional drum washing machine, a drying duct is connected to one side of the gasket and supplied to the drum through this portion, and the supplied drying air is discharged through the front side of the tub and circulated so that drying efficiency is improved. And there was a problem in various aspects, such as the limit on the drying performance.

First, the air supplied into the drum is discharged through the tub front side in a state where the air is not penetrated deeply into the drum, and thus, drying is not performed properly in the drum.

Therefore, the existing flow path structure has a disadvantage in reducing the drying efficiency and drying performance.

Next, the conventional drying drum washing machine has a drying duct (7) is connected to the gasket, the drying duct is fixed, the gasket (8) flows during the vibration of the tub gasket wear and tear occurs There was a disadvantage.

Therefore, since an expensive gasket having a relatively small thermal deformation must be installed, there is a problem in that the manufacturing cost is increased.

In addition, the drying duct 7 is discharged vertically downward through the gasket, which is displaced from the axial direction of the drum, and the hot air is discharged by hitting the door glass, thereby causing resistance.

Therefore, to overcome this, a blower having a larger capacity must be installed.

In addition, since the hot air of the drying duct 7 is switched from the inclined portion of the door glass 2a via the gasket 8 to flow into the drum 4 as described above, the door 2 Has the disadvantage that it is unnecessarily heated.

On the other hand, as the drying duct 7 is connected to the outer circumferential surface of the upper side of the gasket 8, the upper side and the lower side of the gasket 8 form an asymmetrical structure, so that the gasket 8 of the tub 3 There is a problem that can not balance the front.

The present invention has been made to solve the above-mentioned problems, the present invention provides a dry double drum washing machine employing a new flow path structure that improves the drying efficiency and drying performance compared to the conventional dry double drum washing machine, In particular, the object of the present invention is to provide an anti-siphon action structure suitable for the structural characteristics of the new dry-use drum washing machine.

In order to achieve the above object, the present invention is a hot tubing inlet is formed on the front side (front surface) and a hot tub discharge formed on the lower rear side of the substantially cylindrical tub; A drum rotatably installed in the tub and having a hot air passing hole formed thereon so that hot air passing through the hot air inlet of the tub flows into the drum; A drying duct embedded in a heater and a blowing fan on an inner flow path to generate hot air, and fixed to one side of an outer circumferential surface of the tub; A condensation duct for removing moisture contained in the hot air discharged through the hot air discharge port in the lower rear portion of the tub; A drain hose connected to the bottom of the tub; A drain pump installed on the drain hose; And a siphon brake hose connected between one side of the water pipe and a tub of the drain hose.

Hereinafter, the drum washing machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a side cross-sectional view showing the overall configuration of the drum washing machine according to the present invention, Figure 3 is a technical main configuration for preventing the siphon action of the present invention, Figure 4 is for explaining the connection position of the siphon brake hose of the present invention As a reference figure, it is a principal part plan structure diagram of FIG.

2 to 4, the combined drum washing machine according to the present invention is installed in the cabinet 10 to store the washing water, and a hot air inlet 20a is formed at the front side and the bottom of the rear side. Tub 20 having a hot air discharge hole (20b) is formed on the side, and the drum 30 is rotatably installed in the tub 20 and formed with a plurality of hot air passing holes (30a) having a predetermined arrangement on the front surface And a heater 41 and a blowing fan 42 are built therein so as to be fixedly installed on an upper circumferential surface of the tub 20 and generate hot air therein, and one end of the tub 20 has a hot air inlet ( One end is connected to a drying duct 40 connected to 20a to supply the hot air generated therein to the drum 30, and a hot air discharge hole 20b at a lower rear side of the tub 20. The tub 20 is installed at the rear side of the tub 20 so that the other end is connected to the duct 40. It includes a condensation duct 50 to remove the moisture contained in the air discharged from) to the drying duct (40).

In addition, the drying drum washing machine of the present invention and the drain hose (H) is connected to the tub 20 lower; A drain pump (P) installed on the drain hose (H); It comprises a siphon brake hose 70 connected between the tubing 20 and one side of the pipe of the drain hose (H).

At this time, it is preferable that the siphon brake hose 70 is connected to the rear of the tub 20, and in particular, the siphon brake hose 70 is connected to a region between the rear wall of the drum 30 and the rear wall of the tub 20.

That is, as shown in Figure 4, the siphon brake hose 70 is connected in the section (l) from the drum rear wall portion of the tub 30 to the rear wall portion of the tub 20.

On the other hand, between the tub 20 and the drying duct 40 is a heat sink 43 (passenger) for blocking the heat transfer of the drying duct 40 directly to the tub 20 is interposed.

At this time, the heat sink 43 is preferably made of a metal material such as an iron plate, but may be a plastic material without heat deformation, the heat sink 43 is covered to the extent to which radiant heat is transmitted from the heater of the drying duct 40 It is formed to have an area capable of.

On the other hand, it is preferable that the hot air passing through hole 30a formed in the drum 30 is radially formed as a whole.

The drum 30 penetrates the tub 20 and is axially connected to the drum 30, a rotor 62 coupled to a rear end of the shaft 61, and the rotor 62. Preferably rotated in a direct drive method by the outer rotor type motor consisting of a stator 63 located inside, but is not necessarily limited thereto.

In addition, the upper surface of the drying duct 40 may be provided with a heat dissipation means such as a heat radiation fin 44 to increase the heat dissipation area to prevent overheating of the upper surface of the drying duct.

The action of the dry-use drum washing machine of the present invention configured as described above is as follows.

First, the hot air inlet 20a is formed at the upper front side of the tub 20, and the hot air outlet 20b is formed at the lower rear side of the tub 20.

The reason for this is that the hot air flowing into the drum 30 and the hot air discharged to the condensation duct 50 are in a diagonal direction, so that the hot air is entirely deep inside the drum 30. This is to discharge the laundry evenly after drying evenly.

Next, the hot air inlet 20a of the tub 20 is formed in the upper portion of the front of the tub 20, the hot air passing through hole 30a of the front of the drum 30 to form a concentric circle on the front of the drum (30) It is arranged, but is formed to be arranged in a radial form in the form of a straight letter, or is formed to be arranged in a zigzag form in the radial direction.

That is, the hot air passing through the front of the drum 30 is formed in such a way that the strength of the front part of the drum 30 is not reduced but the flow passage cross section is maximized.

Thus, the hot air inlet hole 20a and the hot air inlet hole 20a communicate with each other even though the drum 30 is rotated by forming the hot air through hole 30a in an effective arrangement form over the entire surface of the drum 30. The hot air introduced into the tub 20 through the inlet 20a may be smoothly supplied into the drum 30 through the hot air passing hole 30a provided in the front of the drum 30.

On the other hand, the heat dissipation plate 43 installed in the lower portion of the drying duct 40 to prevent the heat generated from the drying duct 40 is transmitted to the tub 20.

In other words, if the drying duct 40 having a heater that generates heat is directly fixed to the tub 20, the tub 20 made of plastic receives heat and is highly likely to be deformed. It is to block the transmission to the tub 20 through the heat sink 43 which is a separate member.

In addition, the drying combined drum washing machine of the present invention vibrates at a portion where the drying duct 40 and the tub 20 are connected as the drying duct 40 is fixed on the outer circumferential surface of the tub 20 via the heat sink 43. There is no need to install a gasket to absorb the water. This is because the drying duct 40 is fixed to the tub 20, so that when the tub 20 flows or vibrates, the drying duct 40 also flows or vibrates with the tub.

Of course, it is easily understood by those skilled in the art that a sealing member may be installed at the connection portion of the drying duct 40 and the tub 20 to prevent leakage of heat generated from the drying duct 40.

In addition, since the condensation duct 50 is directly fixed to the rear surface of the tub 20, the condensation duct 50 and the tub 20 do not need to separately install a gasket for absorbing vibration.

On the other hand, if the drain hose (H) end is lower than the bottom of the drum washing machine is installed while the drainage pump (P) stops working, all the water inside the tub 20 by the siphon phenomenon will be drained out. Drying drum washing machine of the present invention can prevent such a siphon phenomenon.

That is, in the present invention, the siphon brake hose 70 is connected between the tub 20 and the drain hose H. When the drain pump P is stopped, the tub 20 and the outlet hose H are immediately opened. The siphon phenomenon is blocked by the equilibrium pressure of.

On the other hand, during the drying process, the drain pump (P) is driven to intermittently remove condensed water accumulated on the bottom of the tub 20. In this case, the drain hose (H) end is higher than the main body of the drum washing machine such as a sink. When positioned, high pressure is applied to the drainage so that the condensed water escapes toward the siphon brake hose 70.

In this case, in the present invention, the siphon brake hose 70 is connected to the tub 20, and condensed water is again connected to the drum 30 by being connected to an area between the rear wall of the drum 30 and the rear wall of the tub 20. Through the formed through hole is prevented from entering the inside of the drum to wet the dry laundry.

Hereinafter, the drying process using a dry-use drum washing machine of the present invention configured as described above are as follows.

When the drying operation of the drum washing machine is started, power is applied to the heater 41 embedded in the drying duct 40 and power is supplied to the blower fan 42. Accordingly, the heater and the blower fan operate to generate hot air. Generate.

The hot air generated in the drying duct 40 sequentially passes through the hot air inlet 20a of the front surface of the tub 20 and the hot air passing hole 30a of the front surface of the drum 30. Inflow.

At this time, the hot air passing through hole 30a is formed on the front surface of the drum 30 in such a way that the strength of the flow passage area can be maximized, but the drum 30 is formed entirely over the front of the drum 30. ) Is rotated, the hot air through hole 30a is always located at a position corresponding to the hot air inlet 20a.

For this reason, the hot air introduced into the tub 20 through the hot air inlet 20a immediately flows into the drum 30 directly without being diverted to another path.

Subsequently, the hot air introduced into the drum 30 proceeds toward the hot air outlet 20b of the tub 20 formed in a diagonal direction, thereby absorbing moisture contained in the laundry and drying the laundry.

At this time, by stirring the laundry while the drum 30 rotates at a low speed, the laundry is evenly exposed to hot air, thereby improving the drying efficiency of the laundry.

In addition, the drum 30 is rotated at a low speed to mix the laundry, and in a mixed state, the laundry is heated to a speed such that the laundry does not fall off the inner surface of the drum 30, and the laundry flows into the drum 30. You may be able to increase your contact time enough.

On the other hand, the dried hot air is discharged to the condensation duct 50 in the state containing the moisture instead of lowering the temperature, the condensation duct 50 is a tub forming a diagonal with the upper side of the hot air inflow direction of the drum ( Since it is connected to the lower rear side of the 20) to allow the air discharged from the drum 30 to be more smoothly discharged to the condensation duct (50).

That is, since the air at the hot air inlet 20a side of the tub 20 is light and warm, the air at the hot air outlet 20b side of the tub 20 is relatively heavy and cold, so that the tub 20 of the tub 20 is circulated in the air. The flow path structure of the present invention in which the hot air inlet 20a is formed at the top of the front surface and the hot air outlet 20b is formed at the bottom of the rear of the tub 20 conforms to the principle of air circulation by natural convection.

In addition, the drum washing machine of the present invention is discharged in a state where the hot air penetrates completely through the drum 30, and thus, the drying effect is improved because hot air reaches evenly even to laundrys located deep in the drum.

In addition, the wet air flowing out of the hot air outlet 20b and introduced into the condensation duct 50 flows cold condensed water from the water supply 51 into the condensation duct 50, thereby condensing the duct 50 by the condensation action of the condensate. The moisture contained in the discharged wet air can be removed.

In addition, the dry air from which the moisture is removed from the condensation duct 50 is introduced into the drying duct 40 by the blowing fan 42 embedded in the drying duct 40, and the heater built in the drying duct 40. After being heated by 41, it is re-introduced into the drum 30 by the blowing force of the blowing fan 42.

As the above cycle is repeatedly performed, the laundry is dried.

On the other hand, when the condensate is discharged by the driving of the drain pump (P) during the drying process as described above, even if some condensate flows into the siphon brake hose (70) due to the high outlet position of the drain hose (H) drum 30 It is as described above that the tub 20 is introduced again without being introduced into the tub 20, and thus, no adverse effect is given to the dry laundry in the drum 30.

As described above, the combined drum washing machine according to the present invention provides the following effects.

First, when the new drying system of the present invention is applied, the air supplied into the drum penetrates deeply into the drum, so that drying is uniformly performed on all the laundry, thereby improving drying efficiency and drying performance.

In other words, the hot air generated in the drying duct flows into the upper portion of the front of the drum flows in a diagonal direction and is discharged through the lower rear of the drum. Thus, the supply of hot air evenly deep inside the drum improves drying efficiency and drying performance.

On the other hand, as the drying duct is coupled to the tub form of the upper side and the lower side of the gasket forms an accurate symmetrical structure, it is possible to evenly absorb the vibration of the tub.

And, since hot air flows into the drum through the tub without passing through the gasket, the phenomenon in which the door is unnecessarily heated is eliminated unlike the conventional art.

In addition, the present invention, the siphon phenomenon is prevented, the siphon brake hose for preventing the siphon is installed in the outside position of the drum drum, the problem of re-wetting the laundry condensed water is solved by the effect of improving the product reliability There is.

1 is a side cross-sectional view showing an example of a conventional drum washing machine

Figure 2 is a side cross-sectional view showing the overall configuration of the drum washing machine according to the invention

Figure 3 is a schematic view of the main components for preventing the siphon action of the present invention

Figure 4 is a reference diagram for explaining the mounting position of the siphon brake hose of the present invention, a plan view of the main part of FIG.

Explanation of symbols on main parts of drawing

10: cabinet 20: tub

20a: Hot air inlet 30: Drum

30a: Hot air passing through 40: Drying duct

41: heater 42: blowing fan

43: heat sink 50: condensation duct

51: water supply 61: shaft

62: rotor 63: stator

Claims (3)

A substantially cylindrical tub in which a hot air inlet is formed at an upper side of the front surface and a hot air outlet is formed at a lower rear side of the front surface; A drum rotatably installed in the tub and having a hot air passing hole formed thereon so that hot air passing through the hot air inlet of the tub flows into the drum; A drying duct embedded in a heater and a blowing fan on an inner flow path to generate hot air, and fixed to one side of an outer circumferential surface of the tub; A condensation duct for removing moisture contained in the hot air discharged through the hot air discharge port in the lower rear portion of the tub; A drain hose connected to the bottom of the tub; A drain pump installed on the drain hose; Drying drum washing machine characterized in that it comprises a siphon brake hose connected between the tubing one side and the tub of the drain hose. The method of claim 1, Dry sieve brake hose is characterized in that connected to the rear side of the tub drum washing machine. The method of claim 1, And the siphon brake hose is connected to a region between the rear wall portion of the tub and the rear wall portion of the tub.