KR20100009118A - Filter for water purifier and filter assembly having the same - Google Patents

Abstract

PURPOSE: A filter for a water purifier and a filter assembly including the same are provided to improve purification performance of the whole filter assembly by enhancing the purification efficiency of each filter by minimizing the filter assembly used in the water purifier. CONSTITUTION: A filter assembly(100) for a water purifier comprises a plurality of filters removing foreign materials in raw water. A first filter(12a) is a sediment filter. A second filter(12b) and a third filter(12c) are a pre-processing carbon filter and a post-processing carbon filter. A fourth filter(12d) is a hollow membrane filter. Each filter has a housing(14a - 14d), a filter filling materials(16a - 16d), a fastening part, and a flow path expansion part(18a-18d).

Description

Filter for water purifier and filter assembly including same {FILTER FOR WATER PURIFIER AND FILTER ASSEMBLY HAVING THE SAME}

The present invention relates to a filter for a water purifier and a filter assembly including the same. More specifically, the filter for a water purifier can be miniaturized and compact, and can increase the filter efficiency by expanding the contact area between the filter filler and water. It relates to a filter assembly comprising the same.

Generally, a water purifier is a device for purifying raw water such as tap water or weak water.It provides drinking water that is beneficial to the human body by removing heavy metals or other harmful substances contained in raw water based on water purification methods including sedimentation, filtration, and sterilization. do.

Such a water purifier is equipped with various filters for purifying raw water. Filters are classified into sediment filters to remove sediment, carbon filters to remove pesticides and heavy metals and residual chlorine, hollow fiber membrane filters to remove microtoxic substances, and reverse osmosis membrane filters.

Each of the above-described filters is composed of a housing forming an external appearance and a filter filler (for example, a carbon filter is a carbon (activated carbon) filter material) accommodated inside the housing, and several filters are connected to each other through a water channel. Therefore, raw water, such as tap water, passes through the filters in order to remove harmful substances and to purify the water.

Recently, researches for making a water purifier compact and compact have been actively conducted. For this purpose, miniaturization and compactness of a filter assembly should be realized first. In addition, there is a need for research on a technique for increasing the water purification efficiency of each filter to prevent performance degradation due to miniaturization and compactness of the filter assembly.

SUMMARY OF THE INVENTION An object of the present invention is to provide a filter assembly including a filter for water purifier and a filter assembly including the same, which can reduce the size and compactness of the filter assembly applied to the water purifier, and improve the water purification performance of the entire filter assembly by increasing the water purification efficiency of individual filters.

The filter for a water purifier according to an embodiment of the present invention includes a housing having an inlet and an outlet, a filter filler filled in the housing, a fastening part formed on at least one of an upper side and a lower side of the housing, and an inlet of the housing. And a flow path expansion portion provided to enlarge the flow path toward the filter filler.

The fastening part may include at least one of a male screw part formed on one side of the upper side and a lower side of the housing, and a female screw part formed on the other side of the upper side and the lower side of the housing.

The flow path expansion portion may be formed in a funnel shape in which the diameter gradually expands toward the filter filler. The filter for water purifier may further include a first porous plate positioned between the flow path expansion portion and the filter filler. In addition, the filter for water purifiers may further include a second porous plate and the space portion located between the filter filler and the outlet.

The filter assembly for a water purifier according to an embodiment of the present invention includes a plurality of filters, each of the plurality of filters includes a housing having an inlet and an outlet, a filter filler filled in the housing, and an upper side and a lower side of the housing. Is formed on at least one side of the coupling portion coupled to the housing of the neighboring filter, and the flow path expansion portion provided to the inlet of the housing to extend the flow path toward the filter filler.

The fastening part may include at least one of a male screw part formed on one side of the upper side and a lower side of the housing, and a female screw part formed on the other side of the upper side and the lower side of the housing. A sealing member for sealing with a neighboring filter may be positioned at an edge of the male thread portion of at least one of the plurality of filters.

The inlet is formed on any one of the upper side and the lower side of the housing, the outlet is formed on the other side of the upper side and the lower side of the housing, the outlet can be formed to protrude to any height to fit the inlet of the neighboring filter.

The flow path expansion portion may be formed in a funnel shape in which the diameter gradually expands toward the filter filler. Each of the plurality of filters may further include a first porous plate positioned between the flow path extension and the filter filler. In addition, each of the plurality of filters may further include a second porous plate and a space located between the filter filler and the outlet.

The plurality of filters may include a sediment filter, a pretreatment carbon filter, a post treatment carbon filter, and a hollow fiber membrane filter sequentially positioned along the flow direction of the raw water.

According to the filter and filter assembly for a water purifier according to the present invention, the overall configuration of the filter assembly can be miniaturized and made compact, thereby enabling a miniaturized and compact design of the water purifier. In addition, by increasing the contact area of the water and the filter filler to increase the efficiency of the individual filter can improve the water purification performance of the entire filter assembly.

Hereinafter, with reference to the accompanying drawings will be described in detail a specific embodiment of the present invention.

1 is a cross-sectional view showing a coupling state of a filter for a water purifier and a filter assembly including the same according to the first embodiment of the present invention. Since the filter assembly includes individual filters, the description of the individual filters is replaced with the description of the filter assembly.

Referring to FIG. 1, the filter assembly 100 for a water purifier according to the present embodiment includes a plurality of filters 12a, 12b, 12c, and 12d that receive raw water and remove foreign substances from raw water to discharge purified water. In this embodiment, the filters 12a, 12b, 12c, 12d are mechanically coupled through the fastening to constitute a single filter assembly 100.

Raw water may be provided to the first filter 12a located at the bottom of the filter assembly 100, and the first filter 12a, the second filter 12b, and the third filter toward the top of the filter assembly 100. The purified water may be purified while passing through the 12c and the fourth filter 12d in order to discharge the purified water through the fourth filter 12d positioned at the top of the filter assembly 100.

In this case, the first filter 12a may be a sediment filter for removing suspended solids, large particles, etc., and the second filter 12b and the third filter 12c may be pesticides, heavy metals, residual chlorine, etc., respectively. It may be a pre-treatment carbon filter and a post-treatment carbon filter for removing the fourth filter, the fourth filter 12d may be a hollow fiber membrane filter for removing the fine harmful substances.

The number, types, and positions of the filters constituting the filter assembly 100 are not limited to the above-described examples, and may be variously modified.

Each of the first to fourth filters 12a, 12b, 12c, and 12d includes a housing 14a, 14b, 14c, and 14d forming an external appearance, and a filter filled inside the housings 14a, 14b, 14c, and 14d. Fillers 16a, 16b, 16c, and 16d, fastening portions formed on at least one side of the upper and lower sides of the housings 14a, 14b, 14c, and 14d to mechanically couple with the housings of neighboring filters, and the housings 14a, And flow path extensions 18a, 18b, 18c, and 18d formed at the inlets of 14b, 14c, and 14d to enlarge the flow path toward the filter fillers 16a, 16b, 16c, and 16d.

The housings 14a, 14b, 14c, and 14d may have a cylindrical shape, and form an inlet 20a (indicated only an inlet of the first filter in FIG. 1 for convenience) in which raw water or a purified water passed through the previous filter flows in the center of the bottom thereof. In addition, an outlet port 22a through which corresponding filter fillers 16a, 16b, 16c, and 16d flow out may be formed at the center of the upper end (for convenience, only the outlet port of the first filter is shown in FIG. 1). The outlet 22a is formed to protrude to an arbitrary height so that it can be fitted to the inlet of the next filter.

FIG. 2 is an enlarged perspective view of the first filter shown in FIG. 1, and FIG. 3 is an enlarged perspective view of the second filter shown in FIG. 1. In FIG. 3, the bottom of the second filter is shown to face the top of the drawing for convenience.

2 and 3, a fastening portion formed on any one side, for example, the upper side and the lower side of the housings 14a and 14b may be formed of a male screw part 24, and the upper side of the housings 14a and 14b. Fastening portion formed on the other side of the lower side, for example, the lower side may be made of a female screw portion (26).

That is, the male screw portion 24 having a diameter smaller than the housing 14a of the first filter 12a and having a thread formed along the outer circumference thereof is provided above the first filter 12a. In addition, a female thread part 26 having a thread is formed along the periphery while providing a space for receiving the male thread part 24 of the first filter 12a under the second filter 12b.

As a result, the first filter 12a and the second filter 12b are coupled to each other through the fastening of the male screw portion 24 and the female screw portion 26. At this time, a sealing member 28 such as a rubber O-ring is positioned at the edge of the male threaded portion 24 of the first filter 12a to tightly seal between the first filter 12a and the second filter 12b. The remaining filters are combined with each other in the same manner to form an integrated filter assembly.

Referring back to FIG. 1, in the filter assembly 100 of the present embodiment, as described above, the plurality of filters 12a, 12b, 12c, and 12d are firmly coupled to each other through the fastening portion, and the outlet of any one filter is next It consists of a configuration that fits directly into the inlet of the filter.

Therefore, the filter assembly 100 of the present embodiment can be miniaturized and compactly manufactured, thereby enabling the water purifier to be miniaturized and compact. In addition, since the assembly and disassembly of the filter assembly 100 is easy, only a specific filter can be easily replaced according to the replacement cycle of each filter 12a, 12b, 12c, and 12d, so that filter replacement and water purifier management can be more easily performed. Can be.

Next, the flow path expansion units 18a, 18b, 18c, and 18d will be described.

Referring to FIG. 1, the funnel expansion portion 18a of the first filter 12a is a funnel in which a diameter gradually expands toward the filter filler 16a at a portion of the inlet 20a facing the filter filler 16a. It is made of shapes. As a result, the raw water introduced into the first filter 12a through the inlet 20a diffuses in a large area while passing through the channel expansion portion 18a, and as a result, the contact area between the raw water and the filter filler 16a can be effectively enlarged. have.

The flow path expansion portions 18b, 18c, and 18d are equally applied to the second to fourth filters 12b, 12c, and 12d, and the water passing through the previous filter is applied to the second to fourth filters 12b, 12c, and 12d. When flowing in, the incoming water is diffused into a large area to enlarge the contact area with the filter fillers 16b, 16c, and 16d. Therefore, the filter assembly 100 of the present embodiment can improve the water purification function of the entire filter assembly 100 by increasing the filter efficiency for each filter.

4 is a cross-sectional view showing a combined state of a filter for a water purifier and a filter assembly including the same according to the second embodiment of the present invention. Since the filter assembly also includes individual filters in the second embodiment, the description of the individual filters is replaced with the description of the filter assembly.

Referring to FIG. 4, the filter assembly 101 of the present embodiment includes flow path extensions 18a ', 18b', 18c ', for each of the first to fourth filters 12a', 12b ', 12c', and 12d '. 18d ') and the first porous plates 30a, 30b, 30c, and 30d between the filter fillers 16a, 16b, 16c and 16d, and the filter fillers 16a, 16b, 16c and 16d and the outlet 22a, Second porous plates 32a, 32b, 32c, and 32d are installed between 22b, 22c, and 22d, and between second porous plates 32a, 32b, 32c, and 32d and outlets 22a, 22b, 22c, and 22d. The same configuration as that of the filter assembly 100 of the first embodiment described above is provided except that space portions 34a, 34b, 34c, and 34d are provided in the grooves.

The first porous plate 30a, 30b, 30c, 30d is a plate in which fine pores are formed. The first porous plate 30a, 30b, 30c, and 30d is formed with fine pores. The first porous plate 30a, 30b, 30c, and 30d is diffused through the flow path expansion units 18a ', 18b', 18c ', and 18d'. It serves to enlarge the contact area of the filter filler (16a, 16b, 16c, 16d).

The second porous plates 32a, 32b, 32c, and 32d are also plates having fine pores, and the second porous plates 32a, 32b, 32c, and 32d and the space portions 34a, 34b, 34c, and 34d thereon are formed. It serves to smoothly form the flow path of the water passing through the filter filler (16a, 16b, 16c, 16d). Therefore, the water passing through the filter fillers 16a, 16b, 16c, and 16d passes through the second porous plates 32a, 32b, 32c, and 32d and the spaces 34a, 34b, 34c, and 34d, and outlets 22a, 22b, and 22c. , 22d) can be easily discharged to the outside of the filter (12a ', 12b', 12c ', 12d').

Thus, the filter assembly 101 of the present embodiment has a first diffusion function through the flow path expansion portions 18a ', 18b', 18c ', and 18d', and the two by the first porous plates 30a, 30b, 30c, and 30d. With the differential diffusion function, the water provided to each filter 12a ', 12b', 12c ', 12d' is brought into contact with the filter fillers 16a, 16b, 16c, 16d with sufficient area to further filter efficiency. Can be improved.

At this time, the flow path expansion portions 18a ', 18b', 18c ', and 18d' may have the maximum diameters of the porous plates 30a, for example, so as to stably support the first porous plates 30a, 30b, 30c, and 30d. 30b, 30c, 30d, and may have the same size, and in the second embodiment, the maximum diameter of the flow path expansion portions 18a ', 18b', 18c ', 18d' is the flow path expansion provided in the first embodiment. It may be formed larger than the maximum diameter of the portions (18a, 18b, 18c, 18d).

On the other hand, in the above described the structure in which raw water is introduced into the lower end of the filter assembly (100, 101) and the purified water flows out from the top, on the contrary, that is, the raw water is introduced into the upper end of the filter assembly and the purified water flows out from the bottom The structure is also possible. In this case, the sediment filter, the pretreatment carbon filter, the post treatment carbon filter, and the hollow fiber membrane filter are sequentially disposed along the flow direction of the raw water.

According to the filter and filter assembly for water purifier of the above-mentioned structure, the whole structure of a filter assembly can be miniaturized and made compact, and it is possible for the water purifier to be miniaturized and compact. In addition, by increasing the contact area of the water and the filter filler to increase the efficiency of the individual filter has the effect of improving the water purification performance of each filter and the entire filter assembly.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Of course it belongs to the range of.

1 is a cross-sectional view showing a coupling state of a filter for a water purifier and a filter assembly including the same according to the first embodiment of the present invention.

FIG. 2 is an enlarged perspective view of the first filter illustrated in FIG. 1.

3 is an enlarged perspective view of the second filter illustrated in FIG. 1.

4 is a cross-sectional view showing a combined state of a filter for a water purifier and a filter assembly including the same according to the second embodiment of the present invention.

Claims (13)

A housing having an inlet and an outlet; A filter filler filled in the housing; A fastening part formed on at least one side of an upper side and a lower side of the housing; And Flow passage extension provided in the inlet of the housing to enlarge the flow path toward the filter filler Filter for water purifier comprising a. The method of claim 1, The fastening part is a filter for a water purifier including at least one of a male screw portion formed on one side of the upper side and the lower side of the housing, and a female screw portion formed on the other side of the upper side and the lower side of the housing. The method of claim 1, The flow path expansion portion is a filter for a water purifier formed in the shape of a funnel gradually expanding in diameter toward the filter filler. The method of claim 3, And a first porous plate positioned between the flow path expansion part and the filter filler. The method of claim 4, wherein And a second porous plate and a space portion disposed between the filter filler and the outlet. A filter assembly for a water purifier having a plurality of filters, the filter assembly comprising: Each of the plurality of filters, A housing having an inlet and an outlet; A filter filler filled in the housing; A fastening part formed on at least one of an upper side and a lower side of the housing and coupled to a housing of a neighboring filter; And Flow passage extension provided in the inlet of the housing to enlarge the flow path toward the filter filler Filter assembly for purifier comprising a. The method of claim 6, The fastening part is a filter assembly for a water purifier comprising a male screw portion formed on one side of the upper side and the lower side of the housing, and a female screw portion formed on the other side of the upper side and the lower side of the housing. The method of claim 7, wherein And a sealing member for sealing with a neighboring filter at an edge of a male screw portion of at least one of the plurality of filters. The method of claim 6, The inlet is formed on any one of the upper side and the lower side of the housing, the outlet is formed on the other side of the upper side and the lower side of the housing, for the water purifier protruding to any height so as to fit to the inlet of the neighboring filter Filter assembly. The method of claim 6, The flow passage expansion portion is a filter assembly for a water purifier made of a funnel shape gradually expanding in diameter toward the filter filler. The method of claim 10, Each of the plurality of filters further includes a first porous plate positioned between the flow passage extension and the filter filler. The method of claim 11, Each of the plurality of filters further comprises a second porous plate and a space portion disposed between the filter filler and the outlet. The method of claim 6, The plurality of filters are a filter assembly for a water purifier consisting of a sediment filter, a pre-treated carbon filter, a post-treatment carbon filter, and a hollow fiber membrane filter sequentially positioned along the flow direction of the raw water.

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