KR200152171Y1 - The filter apparatus of a washing machine - Google Patents

Abstract

The present invention discloses a foreign material filtering device of a washing machine.

The present invention is disposed between the drain hose of the tub constituting the recycling of the washing machine and the recycling pump, and a cylindrical filter case having inlet and outlet hoses in communication with the drain hose and the recycling pump, respectively, and installed in parallel with each other on the inner surface of the filter case. In the foreign material filtering device of the washing machine having an upper filter, a lower filter formed with a plurality of filter holes, respectively, the upper and lower sides of the cylindrical filter case connected to the inlet hose and the discharge hose, and the inlet hose from the portion connected to the cylindrical filter case An auxiliary hose having a diameter gradually decreasing toward the portion connected to the discharge hose is characterized in that the extension is formed, the inlet and discharge process of water through the auxiliary hose formed to extend the diameter on one side, upper and lower sides of the filter case It is possible to prevent eddy currents in the system and operate stable recycling. It is possible to perform, in particular through the upper and lower filters can be carried out evenly the foreign matter filtering operation has the effect of increasing the foreign matter filtering efficiency.

Description

Foreign body filtering device of washing machine

The present invention relates to a washing machine, and more particularly, to a foreign matter trapping device provided between a recycling hose and a circulation pump.

In general, a washing machine is classified into one tank and two tanks according to its washing method. One tank is a method of washing and dehydrating laundry in one tank, and two tanks are washed. And dehydration are each done in two tanks.

In recent years, such a washing machine is the most commonly used one-set washing machine in order to increase the capacity and compactness of the whole device.

1 shows an example of the one-type washing machine described above.

This is a tub (20) is located inside the rectangular cabinet (cabinet) 10, in the tub 20 is a clock (clock) and counterclockwise by a basket (30) and in particular a transmission (not shown) The stirrer 40 which is selectively rotated in the direction is built in one by one.

In addition, a circulation pump 60 and a tub 20 between the tub 20 and the overflow hose 50 to achieve a circulating operation, ie, a recycling, for improving water saving and washing power. There is provided a recycling hose (70) extending to the upper side of the).

On the other hand, in circulating the water drained from the tub 20 to the drain hose 50 in this way, because it is to circulate the washed water, various foreign matters, etc. are circulated again to reduce the washing power rather than the drain hose 50 Between the and the circulation pump 60 is provided with a foreign matter filtering device for filtering foreign matter in the water circulated.

2 conceptually shows a conventional example of such a foreign matter filtering device.

This is largely classified into a cylindrical filter case 1 and a filter 2 installed in parallel with each other in the filter case 1 and having a plurality of filter holes 2a.

At this time, at one end of the filter case 1, an inlet hose 1a and an outlet hose 1b communicating with the drain hose 50 and the circulation pump 60, that is, the circulation hose 70, are provided. Each is prepared.

Therefore, the water flowing from the tub 20 to the drain hose 50 flows into the filter case 1 through the inlet hose 1a and simultaneously passes through the filter hole 2a of the filter 2 installed side by side. Foreign matter is filtered, and finally will be introduced toward the circulation pump 60 and the drain hose 50 through the discharge hose (1b).

However, in such a foreign matter trapping device, when the washing machine is used for a long time, the foreign matter is continuously loaded on the filtering hole 2a of the filter 2, and at some point, the filtering hole 2a is blocked by the foreign matter. The phenomenon is caused. In this way, when the blocking hole 2a is blocked, water flowing in from the inlet hose 1a is substantially prevented from escaping to the outlet hose 1b, thereby causing a problem in that the recycling operation cannot be performed, and the circulation pump 60 Overloading phenomenon is severely caused to damage the motor driving the circulation pump (60). As a result, the inconvenience of having to clean and filter the filter has been a factor of declining consumer confidence in the product.

In addition, since the diameters of the filtering holes 2a of the filters 2 are equal to each other, a large amount of foreign matter can be filtered through the filter 2 on the lower side, but the filter 2 on the upper side is relatively high. You will not be able to walk through many foreign objects. This is because clogging of the filtering hole 2a occurs first in the filter 2 on the lower side.

In order to solve such a problem, the applicant has proposed an improved foreign matter filtering device through Utility Model Application No. 96-42547.

That is, the improved foreign matter filtering device as shown in Figure 3, the water drained from the tub 20 is introduced into the filter case 81 through the inlet hose 81a connected to the drain hose 50, and at the same time The circulation pump 60 and the circulation hose 70 through the discharge hose 81b with foreign substances removed through the filtering holes 82a and 83a of the upper and lower filters 82 and 83 installed in parallel in the filter case 81. It is introduced into).

In this case, clogging may occur in the filtering holes 82a and 83a on the upper and lower filters 82 and 83 according to long-term use, and in particular, the filtering hole 83a on the lower filter 83 which directly introduces a large amount of foreign substances. Clogging occurs first.

In this way, even if the blocking filter 83a of the lower filter 83 is clogged, the water introduced from the inlet hose 81a passes through the upper flow path 83b formed on one side of the lower filter 83. 82) flows to the side to facilitate a smooth recycling operation. In addition, since the diameter of the filtering hole 82a of the upper filter 82 has a relatively larger diameter than the diameter of the filtering hole 83a of the lower filter 83, foreign matter in the water passing through the bypass flow path 83b. Will be able to walk easily.

However, the present applicant has some problems listed below in the foreign matter filtering device that has been filed earlier.

First, since the inlet and outlet hoses 81a and 81b are connected to one end of the filter case 81, the inflow of water is partially biased, so that only a portion of the filters 82 and 83 are introduced. Since a large amount of foreign matter was filtered out, foreign matter filtering operation could not be performed efficiently.

Second, in the process of inflow of water from the inlet hose 81a into the filter case 81, and in the process of outflow of water from the filter case 81 into the outlet hose 81b, a vortex phenomenon is caused to cause circulation of water. By inhibiting, smooth recycling could not be performed. This is because these problems are relatively different in diameter from each other.

The present invention has been devised to solve all the problems of the foreign matter filtering device that the applicant has previously filed, and can efficiently walk the foreign matter through the upper and lower filters, and in particular, it is possible to perform smooth recycling by preventing the vortex phenomenon. The object is to provide a foreign material filtering device of the washing machine.

In order to achieve the above object, the foreign material filtering device of the washing machine according to the present invention is disposed between a drain hose and a recycling pump of a tub constituting a recycling of the washing machine, and the inlet and outlet hoses communicated with the drain hose and the recycling pump, respectively. In the foreign material filtering device of the washing machine having a cylindrical filter case having a parallel filter case and the upper and lower filters formed on the inner surface of the filter case and formed with a plurality of filter holes, the cylindrical filter case connected to the inlet hose and the discharge hose One side, the lower portion, characterized in that the auxiliary hose having a diameter gradually reduced toward the portion connected to the inlet hose and the discharge hose from the portion connected to the cylindrical filter case is characterized in that it is formed.

1 is a cross-sectional view of a typical washing machine.

Figure 2 is a perspective view conceptually showing a conventional foreign matter filtering device.

Figure 3 is a perspective view conceptually showing the foreign matter filtering device that the applicant has filed earlier.

Figure 4 is a perspective view conceptually showing a foreign matter filtering device of the washing machine according to the present invention.

Fig. 5 is a sectional view showing main parts.

* Description of the symbols for the main parts of the drawings *

10: cabinet 50: drain hose

60: circulation pump 70: circulation hose

80: foreign material filtering device 81: filter case

81a: inlet hose 81b: outlet hose

82,83: upper and lower filter 82a, 83a: filter hole

82b: bypass euro 90,90 ': auxiliary hose

Such a characteristic configuration and the resulting effects of the present invention will become more apparent from the detailed description of the invention with reference to the accompanying drawings to be described later.

Figure 4 is a perspective view conceptually showing a foreign matter trapping device according to the present invention, Figure 5 is a cross-sectional view of the main portion. Hereinafter, a description will be given with reference to FIGS. 1 and 3.

First, referring to FIG. 1, a tub 20 is positioned inside a cabinet 10 having a rectangular cylinder shape, and a basket 30 and a transmission (not shown) are located in the tub 20. Thereby the stirrer 40 which is selectively rotated in the clockwise and counterclockwise direction is built in.

In addition, a circulation pump 60 and a tub 20 between the tub 20 and the overflow hose 50 to achieve a circulating operation, ie, a recycling, for improving water saving and washing power. There is provided a recycling hose (70) extending to the upper side of the).

On the other hand, in circulating the water drained from the tub 20 to the drain hose 50 in this way, because it is to circulate the washed water, various foreign matters, etc. are circulated again to reduce the washing power rather than the drain hose 50 Between the and the circulation pump 60 is provided with a foreign matter trapping device 80 for filtering foreign matter in the water circulated.

Such a foreign matter filtering device is provided with a filter case 81, as shown in FIG. The cylindrical filter case 81 has a substantially cylindrical shape, in particular one end thereof is connected to the inlet hose 81a and the circulation pump 60, which is connected to the drain hose 50, that is, the circulation hose. An outlet hose 81b which is connected to 70 is extended.

Meanwhile, upper and lower filters 82 and 83 each having a plurality of catching holes 82a and 83a through which foreign substances are filtered are substantially disposed to filter foreign substances, along the length direction of the inner surface of the filter case 81. It is installed in parallel, in particular, on one side of the lower filter 83, that is, on the side opposite to the inlet hose (81a) of the filter case 81 described above in more detail by a bypass passage (by pass); 83b) is formed.

At this time, the diameters of the filtering holes 82a and 83a formed on the upper and lower filters 82 and 83 are preferably increased to increase the diameter of the filtering holes 82a formed in the upper filter 82. This is to allow the flow of water, that is, the recycling operation, as well as to filter more foreign matter through the filtering holes 82a and 83a of each filter 82 and 83.

On the other hand, the upper and lower sides of the cylindrical filter case 81 connected to the inlet hose (81a) and the discharge hose (81b) has substantially the characteristic elements of the present invention as the inlet hose (81a) and the discharge hose ( Subsidiary hoses 90 and 90 ', which are connected to 81b), are located respectively.

At this time, the auxiliary hose (90, 90 ') has a shape that gradually decreases in diameter from the portion connected to the cylindrical filter case 81 toward the portion connected to the inlet hose (81a) and the discharge hose (81b). That is, the portion connected to the filter case 81 has a relatively large diameter compared to the diameter of the portion connected to the inlet and outlet hoses 81a and 81b.

In this case, the auxiliary hoses 90 and 90 'are typically formed by the filter case 81 by injection molding, and thus may be integrally formed in the process of injection molding the filter case 81.

According to the present invention configured as described above, the water drained from the tub 20 flows into the filter case 81 through an inlet hose 81a connected to the drain hose 50, and at the same time is installed in parallel with the filter case 81. The foreign matter is removed from the filter holes 82a and 83a of the lower filters 82 and 83 and is introduced into the circulation pump 60 and the circulation hose 70 through the discharge hose 81b.

In this case, clogging may occur in the filtering holes 82a and 83a on the upper and lower filters 82 and 83 according to long-term use, and in particular, the filtering hole 83a on the lower filter 83 which directly introduces a large amount of foreign substances. Clogging occurs first.

In this way, even if the blocking filter 83a of the lower filter 83 is clogged, the water introduced from the inlet hose 81a passes through the upper flow path 83b formed on one side of the lower filter 83. 82) flows to the side to facilitate a smooth recycling operation. In addition, since the diameter of the filtering hole 82a of the upper filter 82 has a relatively larger diameter than the diameter of the filtering hole 83a of the lower filter 83, foreign matter in the water passing through the bypass flow path 83b. Will be able to walk easily.

Meanwhile, in the process of introducing water into the filter case 81 through the inlet hose 81a and discharging water through the discharge hose 91b, the auxiliary hose 90 is formed to extend on one side of the filter case 81. It is possible to prevent the vortex through the smooth recycling operation can be performed.

In addition, through such a smooth flow of water, it is possible to filter the foreign material evenly throughout the upper and lower filters 82 and 83, that is, the foreign matter is not partly biased.

As described above, according to the foreign material filtering device of the washing machine according to the present invention, it is possible to prevent the vortex phenomenon in the inflow and discharge of water through the auxiliary hose formed to extend the diameter on one side, upper and lower sides of the filter case is stable The recycling operation can be performed, and in particular, the upper and lower filters can evenly filter the foreign matter, thereby increasing the foreign matter filtering efficiency.

Claims (1)

A cylindrical filter case disposed between the drain hose of the tub constituting the recycling of the washing machine and the recycling pump, the inlet and outlet hoses communicating with the drain hose and the recycling pump, respectively; In the foreign matter filtering device of a washing machine having an upper and a lower filter each formed with a filtering hole, The upper and lower sides of the cylindrical filter case connected to the inlet hose and the discharge hose, the auxiliary hose having a diameter gradually reduced from the portion connected to the cylindrical filter case toward the portion connected to the inlet hose and the discharge hose The foreign material filtering device of the washing machine, characterized in that the extension is formed.