KR20020095368A - Pulsator type washing machine having drying function - Google Patents

Abstract

PURPOSE: A pulsator type drying and washing machine is provided to lower the temperature and humidity of air discharged to the outside and cool a driving unit such as a motor for preventing the failure of the driving element. CONSTITUTION: A pulsator type drying and washing machine includes a circulation duct connected between a lower part and an upper part of an outer tub for circulating air, a blowing fan(22) mounted at a predetermined position of the circulation duct for forcibly circulating the air, a heater(15) mounted at a predetermined position of the circulation duct for heating the air flowing in the circulation duct, and an exhaust duct(40) connected between the outer tub and a drain duct(11) for discharging air excessively humidified by the heat exchange with clothing in the inner tub to the outside, and a cooling duct(90) penetrating the drain duct for lowering the temperature and humidity of the excessively humidified air which flows in the exhaust duct, wherein an outlet part of the cooling duct is facing a driving element(9) for cooling the driving element.

Description

Pulsator type washing machine having drying function}

The present invention relates to a washing machine, and more particularly, to a pulsator type washing machine having a washing function and a drying function.

A washing machine is a device that peels contaminants by applying energy such as impact to laundry, and may be divided into a pulsator type washing machine, a drum type washing machine, and an agitator type washing machine according to a method of applying energy to laundry. That is, the laundry is impacted by a pulsator or agitator, or the laundry is dropped by dropping the laundry by the rotation of the drum to wash the laundry. And the action of the detergent is added to this is done washing.

The above-mentioned washing machines generally have only a function of washing laundry such as clothes. Therefore, the user of the washing machine should take out the laundry from the washing machine after the washing is completed and dry it in the sun.

In recent years, it has been required to be able to artificially dry laundry which has been widely washed in the apartments in a short time due to the widespread use of apartments and changes in living patterns, and a dryer has been developed in response to this demand. The development of the dryer has made it possible to dry laundry which has been washed in a washing machine simply and quickly.

However, in general, a dryer is almost the same size as a washing machine, and therefore, it takes up a lot of space to install each of the washing machine and the dryer, and it is inconvenient to use the laundry having to be removed from the washing machine and put back into the dryer.

Therefore, the development of a washing machine having a drying function has been required. Accordingly, in the drum type washing machine, a washing machine having a drying function capable of being dried directly from a drum without moving laundry after completion of washing has been proposed. In general, however, the washing machine of the pulsator type or agitator type washing machine having a better washing capacity than the drum type has no drying function. Therefore, there has been a demand for the development of a pulsator type washing machine having good washing ability and capable of drying laundry.

In order to solve the above problems, it is an object of the present invention to provide a pulsator type dry washing machine having a good washing function and drying the laundry.

Another object of the present invention is to provide a pulsator type dry washing machine capable of cooling a driving means such as a motor.

1 is a cross-sectional view schematically showing an embodiment of a pulsator type dry washing machine according to the present invention

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

3: outer tank 5: inner tank

7: pulsator 9: driving means

10: water supply valve 11: drain duct

13: drain valve 15: heater

20: circulation duct 22: blowing fan

30: outside duct 32: outside fan

40: exhaust duct 11a: expansion pipe

90: cooling duct 92: cooling fan

60: connection duct

In order to achieve the above object, the present invention provides a circulation duct connected between the lower portion of the outer tank and the upper portion of the outer tank to circulate air; A blowing fan installed at a predetermined position of the circulation duct and forcibly circulating air; A heater installed at a predetermined position of the circulation duct to heat air flowing through the circulation duct; An exhaust duct connected between an upper portion of the outer tank and a drain duct so as to discharge the humid air of the inner tank to the outside; In order to lower the temperature and humidity of the humid air flowing through the exhaust duct, it provides a pulsator type dry washing machine comprising a cooling duct installed to penetrate the drain duct.

The cooling duct is preferably provided with a cooling fan to force the air to flow.

In addition, an expansion pipe portion is formed in the drainage duct, and the cooling duct preferably passes through the expansion pipe portion. And the outlet side of the cooling duct is arranged to face the drive means, it is more preferable to cool the drive means.

Therefore, according to the present invention, it is possible to effectively dry directly in the washing machine without moving the laundry after washing. It is also possible to cool the drive means.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the pulsator type dry washing machine according to the present invention will be described.

Referring to Figure 1, it will be described an embodiment of a pulsator type dry washing machine according to the present invention. First, the components for the washing function for washing laundry will be described as follows.

An inner tub 3 for storing the washing water is installed in the washing machine case 1, and an inner tub 5 in which a plurality of through holes 5a are formed is rotatably installed in the tub 3. The pulsator 7 is rotatably installed in the inside of (5). And the inner tank 5 and the pulsator 7 are rotated by the drive means 9 provided in the bottom face of the outer tank 3.

On the other hand, the upper part of the case 1 is provided with a water supply valve 10 for supplying water for washing and rinsing, the water supply valve 10 is a water supply duct (not shown) for supplying water to the inner tank (5) Connected. A drain duct 11 for discharging the dirty laundry water after the completion of washing to the outside of the washing machine is connected to the bottom of the outer tub 3, and a drain valve 13 is installed at a predetermined position of the drain duct 11. . Unexplained reference numeral 1a denotes a washing machine cover.

Next, the components for drying the laundry will be described.

Between the upper part and the lower part of the outer tank 3, a circulation duct 20 for supplying heated air for drying laundry to the inner tank 5 is installed. In detail, the lower end of the circulation duct 20 is connected to the lower portion of the outer tub 3, the upper end is located near the upper portion of the inner tub (5). Of course, a predetermined position of the circulation duct 20 is provided with a heater 15 for heating the air and a blowing fan 22 for forcibly circulating the air.

On the other hand, it is preferable that the inner cover 3a that can be opened and closed closely on the upper portion of the inner tank 5, and the tip of the circulation duct 40 is connected to the inner cover 3a. The reason for installing the inner cover 3a is to prevent leakage of heated air during drying of laundry.

Meanwhile, an outside air duct 30 for supplying outside air is connected to a predetermined position of the circulation duct 20, and an outside air fan 32 for generating suction force for sucking outside air is installed at the inlet of the outside air duct 30. desirable. Because, drying the clothes in the inner tank (5) and the air discharged back to the circulation duct 20 is a high temperature and high humidity, and when the high temperature and high humidity air circulated in that state, the drying efficiency is lowered, which contains air This is because moisture must be removed. That is, when the outside air is supplied to the circulation duct 20, the relatively low temperature outside air and the high temperature and high humidity circulation air are exchanged to remove moisture.

On the other hand, in order to facilitate drying, it is preferable to discharge the humidified vapor formed in the inner tank 5 to some extent to the outside. Therefore, for this purpose, the exhaust duct 40 is preferably installed in the outer tub 3.

On the other hand, the upper end of the exhaust duct 40 is preferably connected to the inner cover (3a), the lower end is preferably connected to the rear end of the drain duct 11 (rear end of the portion where the drain valve is installed). Because the drain valve 13 is normally closed during the drying process, the exhaust duct 40 is connected to the rear end of the portion where the drain valve 13 is installed so that the humid air is discharged to the outside. In addition, the exhaust duct 40 also serves to discharge it to the outside when the washing water overflows during the washing process.

On the other hand, when the lower end of the circulation duct 20 is connected to the bottom of the outer tub (3) it is preferable that the connection duct 60 is installed between the lower end of the circulation duct 30 and the drain duct (11). The connection duct 60 is a passage through which the water condensed in the circulation duct 20 flows into the drain duct 11.

On the other hand, it is not good if the humid air is discharged to the outside through the exhaust duct 40 as it is good to drop the temperature and humidity of the humid air to some extent to discharge to the outside. To this end, a cooling duct 90 through which outside air flows is installed at a predetermined position of the drain duct 11. Cooling fan 92 is installed at the inlet of the cooling duct 90 is preferably forced to flow the outside air.

In addition, it is preferable that a predetermined portion of the drain duct 11, that is, a portion through which the cooling duct 90 passes, is formed with an expansion pipe portion 11a having an internal space extended to a predetermined size. Because, if the same space as the expansion pipe (11a) is formed in the drain duct 11, the humid air discharged from the exhaust duct 40 can stay there for a certain time, thereby improving heat exchange efficiency between the humid air and the outside air. Because it becomes.

On the other hand, it is preferable that the distal end of the cooling duct 90, that is, the outlet portion, is directed toward the driving means 9, in particular, the portion in which the motor or the like is installed, and the driving means 9 is cooled by using the discharged outside air. The outside air discharged from the front end of the cooling duct 90 has a slightly increased temperature due to heat exchange with humid air, but is lower than the temperature of the drive means 9, thereby cooling the drive means 9.

Referring to Figure 1, the operation of the embodiment of the pulsator type dry washing machine according to the present invention described above is as follows.

First, the washing function will be described as follows. The washing function is substantially the same as the operation of a conventional washing machine. That is, the washing stroke, the rinsing stroke and the dehydrating stroke are sequentially performed to wash the laundry. The washing water overflowing the upper portion of the inner tank 5 at the time of washing is discharged to the outside through the exhaust duct 40.

The drying process begins when washing and dehydration are complete. When the drying process starts, the outside air is sucked by the outside air fan 32, and the sucked outside air is supplied to the circulation duct 20 through the outside air duct 30. Of course, the air inside the tank 5 is supplied to the circulation duct 20.

The outside air supplied to the circulation duct 20 flows upward by the blowing fan 22 and is heated by the heater 15 and supplied to the inner tank 5. Heated air supplied to the inner tank (5) heats the laundry to dry the laundry, the temperature is relatively low and the humidity is increased.

Part of the humid air circulates through the circulation duct 20, and part of the humid air is discharged to the outside through the exhaust duct 40. At this time, the humid air formed in the upper portion of the inner tank 5 is mainly discharged to the outside through the exhaust duct 40, the air in the lower portion is circulated through the circulation duct 20.

The air introduced into the circulation duct 20 moves upward to exchange heat with outside air supplied from the outside air duct 30 to remove moisture. Water dehumidified in the circulation duct 20, that is, condensate, is discharged to the outside of the washing machine via the connection duct 6 and the drain duct 11 at the lower portion of the circulation duct 20. The dehumidified air having relatively low temperature and humidity is again heated by the heater 15 and supplied to the inner tank 5.

As described above, the heated air circulates the inner tank 5 to dry the laundry of the inner tank 5, and the drying process is completed after a predetermined time cycle.

Meanwhile, the high temperature and high humidity air introduced into the exhaust duct 40 exchanges heat with the outside air flowing through the cooling duct 90 in the expansion pipe portion 11a of the drain duct 11, thereby lowering the temperature and humidity. In addition, the outside air discharged from the cooling duct 90 is discharged toward the driving means to cool the driving means 9.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the present invention pertains, and such modifications are within the scope of the present invention. I will understand that.

Referring to the effect of the pulsator type dry washing machine according to the present invention described above are as follows.

First, according to the present invention, since the laundry after washing can be dried immediately in the inner tank, user convenience is improved. At the same time, the present invention has the advantage that the washing efficiency is also good because the laundry is washed in a pulsator method.

Second, according to the present invention, since the temperature and humidity of the humid air discharged to the outside can be lowered, there is an advantage of being environmentally friendly.

Third, according to the present invention, it is possible to cool the driving means such as a motor, thereby preventing the failure of the driving means and extending the service life.

Claims (4)

A circulation duct connected between the lower part of the outer tank and the upper part of the outer tank to circulate air; A blowing fan installed at a predetermined position of the circulation duct and forcibly circulating air; A heater installed at a predetermined position of the circulation duct to heat air flowing through the circulation duct; An exhaust duct connected between an upper portion of the outer tank and a drain duct so as to discharge the humid air of the inner tank to the outside; And a cooling duct installed to penetrate the drain duct so as to lower the temperature and humidity of the humid air flowing through the exhaust duct. The pulsator type dry washing machine according to claim 1, wherein a cooling fan is installed in the cooling duct to forcibly flow air. The pulsator type dry washing machine according to claim 1 or 2, wherein an expansion pipe portion is formed in the drainage duct, and the cooling duct passes through the expansion pipe portion. The pulsator type dry washing machine according to claim 1 or 2, wherein the outlet side of the cooling duct is disposed to face the driving means, and cools the driving means.