KR20230090046A - Filter assembly and water purifier including the same - Google Patents

Abstract

According to one aspect of the present invention, the housing; and a filtering unit for filtering raw water, wherein the filtering unit includes a first module disposed inside the housing and including a first filter unit for filtering the introduced raw water to provide first purified water; and a second filter unit disposed above the first module, filtering the first purified water to provide second purified water, and spaced apart from the first filter unit, and the second purified water filtered by the second filter unit. and a second module including a discharge tube member providing a purified water discharge passage through which the second purified water flows to be discharged to the outside, wherein the first module supports one side of the first filter unit so that the first purified water is discharged to the outside. It includes a central tube having a first through hole formed therein so as to flow therein, the first filter part has a sheet shape extending while being wound in a spiral form from the central tube, and is composed of a UF filter, and the second filter part has a positive charge. A filter assembly including a positive charge filter and a water filter for filtering the first purified water by an adsorption method may be provided.

Description

Filter assembly and water purifier including the same {FILTER ASSEMBLY AND WATER PURIFIER INCLUDING THE SAME}

The present invention relates to a filter assembly and a water purifier including the filter assembly.

In general, a water purifier is a device including a filter that removes heavy metals or other harmful substances contained in raw water such as tap water or mineral water to provide purified water containing only substances beneficial to the human body. Types of filters of these water purifiers include hollow fiber membrane filters (commonly referred to as "UF filters" in the art) and carbon filters for removing various foreign substances and contaminants in raw water.

Conventional carbon filters filter various foreign substances and contaminants contained in raw water, and hollow fiber membrane filters can filter relatively small-sized contaminants contained in water filtered by the carbon filter.

In this regard, Korean Patent Laid-Open Publication No. 10-2012-0011562 of the present applicant, “Submerged hollow fiber membrane filter device and water purifier including the same” (Patent Document 1) discloses a water purifier including a carbon filter and a hollow fiber membrane filter.

However, there is a problem in that purified water cannot be efficiently filtered with only the carbon filter and the hollow fiber membrane filter of the water purifier disclosed in Patent Document 1. For example, conventional carbon filters and hollow fiber membrane filters may not be able to filter some bacteria and viruses contained in raw water. In other words, the combination of conventional filters has a problem in that there is a limitation in the ability to remove microorganisms contained in raw water. In addition, when the hollow fiber membrane filter and the carbon filter need to be replaced, the hollow fiber membrane filter and the carbon filter must be replaced separately, which can cause inconvenience when replacing the filter.

Therefore, there is a need for a filter assembly that can be easily replaced while minimizing the volume occupied by the hollow fiber membrane filter and the carbon filter in the water purifier.

In addition, according to "Study on Particle Removal Characteristics of Positively Charged Water Treatment Filters" (Non-Patent Document 1) published on pages 454 to 460 of Volume 24, Number 5 of Facility Engineering Journal, viruses present in raw water, Cryptosporidium ( A positively charged filter using poly-ethylenimine as a positively charged material to remove pathogenic microorganisms such as Cryptos-phorididium and Giardia is disclosed. According to this, the positively charged material provides an effect of trapping the virus. However, when a positive charge filter is employed in a water purifier system, there is a problem in that the size and complexity of the water purifier system increases because an additional positive charge filter must be installed in addition to the conventional sediment filter, free carbon filter, membrane filter, and post carbon filter.

Korean Patent Publication No. 10-2012-0011562 (published on February 08, 2012)

Journal of Facility Engineering, Vol. 24, No. 5, pages 454 to 460 Sung-Hak Jung and 6 others (published on October 31, 2011)

One embodiment of the present invention is to provide a water purifier capable of miniaturizing a size by combining a plurality of filters while securing excellent microbial removal performance.

In addition, it is intended to provide a water purifier in which a plurality of filters can be replaced at one time.

According to one aspect of the present invention, the housing; and a filtering unit for filtering raw water, wherein the filtering unit includes a first module disposed inside the housing and including a first filter unit for filtering the introduced raw water to provide first purified water; and a second filter unit disposed above the first module, filtering the first purified water to provide second purified water, and spaced apart from the first filter unit, and the second purified water filtered by the second filter unit. and a second module including a discharge tube member providing a purified water discharge passage through which the second purified water flows to be discharged to the outside, wherein the first module supports one side of the first filter unit so that the first purified water is discharged to the outside. It includes a central tube having a first through hole formed therein so as to flow therein, the first filter part has a sheet shape extending while being wound in a spiral form from the central tube, and is composed of a UF filter, and the second filter part has a positive charge. A filter assembly including a positive charge filter and a water filter for filtering the first purified water by an adsorption method may be provided.

In addition, the first filter unit may include a plurality of membrane sheets attached to the edge of the other side other than the one side to form a sheet flow space therein; And a filter assembly including an outer mesh disposed outside the sheet flow space may be provided.

The second module further includes an upper inner cap member accommodating the second filter unit and guiding the first purified water to the second filter unit, and the discharge tube member penetrates the upper inner cap member. , a filter assembly may be provided.

In addition, the second module includes an upper outer cap member accommodating the upper inner cap member, the discharge tube member is disposed to pass through the upper outer cap member, and the upper outer cap member and the upper inner cap A first daily water flow passage through which the daily water discharged from the first filter unit flows is formed between the members, and between the upper outer cap member and the discharge tube member, the first daily living water flow passage and A filter assembly may be provided in which a second living water flow passage communicates with each other, and a raw water passage through which the raw water flows is formed between the upper outer cap member and the inner circumferential surface of the housing.

In addition, the first module further comprises a living water sealing unit including a first sealing member disposed between the upper outer cap member and the first filter unit to block the raw water from flowing into the first living water flow passage. Including, a filter assembly may be provided.

The first module further includes a lower upper cap member supporting an upper side of the first filter unit and guiding water discharged from the first filter unit to flow into the first water flow path, A filter assembly may be provided in which the tube passes through the lower upper cap member.

In addition, the second module may include a filter assembly including an upper upper cap member and an upper lower cap member supporting the second filter unit, and the discharge tube member extending upward from the upper upper cap member. .

In addition, a filter assembly may be provided in which one of the water filter and the positive charge filter is disposed inside the other one.

In addition, in the water purifier for filtering the raw water, the filter assembly according to claim 1; a raw water supply unit receiving the raw water from the outside of the water purifier; and a channel module including a raw water channel configured to supply raw water flowing into the raw water supply unit to the filter assembly without being filtered.

In addition, a valve unit including a plurality of valve modules for regulating the flow of the raw water, the purified water, and the water for living flowing into or discharged from the filter assembly; and a controller controlling opening and closing of the plurality of valve modules based on a plurality of flow modes, wherein the second module receives the second filter unit and guides the first purified water to the second filter unit. an upper inner cap member for and an upper outer cap member accommodating the upper inner cap member, wherein the discharge tube member is disposed to pass through the upper inner cap member and the upper outer cap member, and is disposed between the upper outer cap member and the upper inner cap member. A first living water flow passage through which the living water discharged from the first filter unit flows is formed, and between the upper outer cap member and the discharge tube member communicates with the first living water flow passage so that the living water is discharged to the outside. A second living water flow passage is formed, and the channel module includes: a living passage channel communicating with the second living water flow passage; and a purified water channel communicating with the purified water discharge passage, wherein the plurality of flow modes include a flushing mode for discharging the living water to the outside, and the plurality of valve modules, when in the flushing mode, A water purifier may be provided that opens a flow channel and closes the water purification channel.

An embodiment of the present invention has an effect of miniaturizing the size of a water purifier while ensuring excellent microorganism removal performance by efficiently removing bacteria, viruses, chemicals, etc. contained in raw water.

In addition, since a plurality of filter units may be included in the filter assembly, there is an effect that a plurality of filter units can be replaced at once by replacing the filter assembly.

1 is a view showing a water purifier according to an embodiment of the present invention,
2 is a view showing a filter assembly according to an embodiment of the present invention.
3 is a view showing a first module of a filter assembly according to an embodiment of the present invention.
4 is a view showing a second module of a filter assembly according to an embodiment of the present invention.
5 is a view showing a state in which the first filter of the filter assembly according to an embodiment of the present invention is wrapped in a spiral shape from the central tube.
6 is a cross-sectional view of the filter assembly taken along line A-A' of FIG. 2;

Hereinafter, specific embodiments for implementing the technical idea of the present invention will be described in detail with reference to the drawings.

In addition, in the description of the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

In addition, when a component is referred to as being 'connected', 'supported', or 'moved' to another component, it is understood that it may be directly connected to, supported, or moved to the other component, but other components may exist in the middle. It should be.

Terms used in this specification are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In addition, in this specification, expressions such as upper, lower, side, etc. are described based on the drawings, and it is made clear in advance that they may be expressed differently if the direction of the object is changed. For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

In addition, terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by these terms. These terms are only used to distinguish one component from another.

As used herein, the meaning of "comprising" specifies specific characteristics, regions, integers, steps, operations, elements, and/or components, and other specific characteristics, regions, integers, steps, operations, elements, elements, and/or groups. does not exclude the presence or addition of

Hereinafter, a water purifier 1 according to an embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 1 , a water purifier 1 according to an embodiment of the present invention can provide clean water to a user by filtering water supplied from the outside. The water purifier 1 may include a filter assembly 10, a raw water supply unit 20, a channel module 30, a valve unit 40, and a controller 50.

Referring further to FIG. 2 , the filter assembly 10 may filter water introduced into the water purifier 1 to provide clean water to the user. This filter assembly 10 may include a housing 100 and a filtering unit 200.

Water introduced into the filter assembly 10 may be classified into raw water, purified water, and daily water. Of the water introduced into the filter assembly 10, the water that has not passed through the filtering unit 200 is defined as raw water, and the water filtered by the filtering unit 200 is defined as purified water. 2 The valve module 42 is blocked and the third valve module 43 is opened so that the filtering unit 200 does not filter and accumulates on the surface or inside of the first filter unit 211 to be described later of the filtering unit 200. The water discharged after washing the foreign substances is defined as living water.

Housing 100 may be formed with a space for accommodating the filtering unit 200 therein. In addition, the housing 100 may be formed with an inlet 110 through which raw water flows in, a purified water outlet 120 through which filtered purified water is discharged, and a daily water outlet 130 through which water generated in the filtration process is discharged. For example, the inlet 110, the purified water outlet 120, and the living water outlet 130 may be formed on the upper side of the housing 100.

3 and 4, the filtering unit 200 is disposed inside the housing 100 to filter raw water introduced into the housing 100 to provide purified water or to generate living water in the filtration process. . This filtering unit 200 may include a first module 210 and a second module 220 .

The first module 210 may be disposed lower than the second module 220 , filter raw water to provide first purified water, and guide the first purified water to the second module 220 . The first module 210 may include a first filter unit 211, a central tube 212, a lower upper cap member 213, and a living water sealing unit 214.

Referring further to FIG. 5 , the first filter unit 211 may provide first purified water by filtering raw water. In addition, the first filter unit 211 may have a sheet shape extending while being wound in a spiral shape from the central tube 212 and may be composed of a UF filter. By this first filter unit 211, raw water flows into the lower side of the first filter unit 211 and can be filtered, filtered purified water is discharged toward the central tube 212, and living water is discharged toward the lower upper cap. It may be discharged toward the member 213 . In addition, the first filter unit 211 may include a plurality of membrane sheets 211a, an outer mesh 211b, and an inner mesh 211c.

The plurality of membrane sheets 211a may have edges other than one side attached to each other to form a sheet flow space therein in order to filter the raw water. The plurality of membrane sheets 211a may extend from the central tube 212 while being wound in a spiral shape.

The outer mesh 211b may be disposed outside the sheet flow space to filter raw water. In other words, the outer mesh 211b may be disposed outside the plurality of membrane sheets 211a attached to each other. In addition, the outer mesh 211b may extend while being wound in a spiral form from the central tube 212 .

The inner mesh 211c may be disposed in the seat flow space to filter raw water. In other words, it may be disposed between a plurality of membrane sheets 211a attached to each other. By the plurality of membrane sheets 211a, the outer mesh 211b, and the inner mesh 211c, raw water may be filtered as first purified water.

The central tube 212 may provide a purified water flow passage F1, which is a passage through which the first purified water flows toward the second module 220, therein. The central tube 212 extends vertically and has an open upper end so that purified water flowing in the purified water flow passage F1 can be discharged from the upper end of the central tube 212 . In addition, the central tube 212 may be disposed to pass through the lower upper cap member 213 and be spaced apart from the lower upper cap member 213 by a predetermined distance to form a water delivery passage F2 through which water for living flows. The living water delivery passage F2 may communicate with the living water outlet 130 . A first through hole 212a communicating with the purified water flow passage F1 may be formed in the central tube 212 so that the first purified water discharged from the first filter unit 211 flows therein.

In order to support the upper side of the first filter unit 211 , the lower upper cap member 213 may have an open lower side to accommodate the upper end of the first filter unit 211 . In addition, between the lower upper cap member 213 and the upper end of the first filter unit 211, the living water discharged from the first filter unit 211 flows toward the second module 220 so that the living water flows. A flow path F2 may be formed. In addition, the lower upper cap member 213 may be disposed on the lower end of the upper inner cap member 226 to be described later. The lower upper cap member 213 may include a lower upper cap body 213a, a lower upper cap support 213b, and a lower upper cap extension 213c.

The lower upper cap body 213a may be spaced apart from the upper end of the first filter unit 211 upward by a predetermined distance. In addition, a lower upper cap hole 213a-1 through which the central tube 212 passes may be formed in the lower upper cap body 213a.

The lower upper cap support part 213b may be spaced apart from the first filter part 211 by a predetermined distance and extend downward from the lower upper cap body 213a. In addition, the lower upper cap support portion 213b may extend to surround the first filter portion 211 when viewed from above. In other words, the upper part of the first filter part 211 may be accommodated inside the lower upper cap support part 213b. For example, the lower upper cap support portion 213b may extend downward from the circumferential surface of the lower upper cap body 213a.

The lower upper cap extension 213c may extend upward from the lower upper cap body 213a. Also, when viewed from above, the upper cap discharge portion 221c may extend to surround the central tube 212 .

The living water sealing part 214 can prevent living water flowing inside the housing, purified water, and raw water from being mixed with each other. The living water sealing unit 214 may include a first sealing member 214a, a second sealing member 214b, and a third sealing member 214c.

The first sealing member 214a is connected to an upper outer cap member 225 to be described later in order to block raw water from flowing into at least one of the first living water flow passage F7 and the living water delivery passage F2 to be described later. 1 may be disposed between the filter units 211. Also, when viewed from above, the first sealing member 214a may extend to surround the first filter unit 211 .

The second sealing member 214b blocks the first purified water discharged from the central tube 212 from entering the living water delivery passage F2 or prevents the living water from being mixed with raw water in the raw water passage F6. It may be disposed between the upper cap member 213 and the central tube 212 . For example, the second sealing member 214b may seal between the lower upper cap extension 213c and the central tube 212 .

The third sealing member 214c is an upper inner part to be described later to block the inflow of the first purified water discharged from the central tube 212 into at least one of the living water delivery passage F2 and the first living water flow passage F7. It may be disposed between the cap member 226 and the lower upper cap member 213 . For example, the third sealing member 214c may seal between the upper inner cap member 226 and the lower upper cap support 213b.

The second module 220 is disposed above the first module 210 and may re-filter the first purified water filtered by the first module 210 . The second module 220 includes a second filter unit 221, a discharge tube member 222, an upper upper cap member 223, an upper lower cap member 224, an upper outer cap member 225, and an upper inner cap. member 226.

Referring further to FIG. 6 , the second filter unit 221 may provide second purified water by filtering the first purified water. The upper part of the second filter unit 221 may be supported by the upper upper cap member 223 and the lower part may be supported by the upper lower cap member 224 . The second filter unit 221 may include a positive charge filter 221a and a water purification filter 221b.

The positive charge filter 221a may re-filter the first purified water in an adsorption method by positive charge. In other words, the positive charge filter 221a may include a positive charge layer for filtering the first purified water. The material forming the positive charge layer is not particularly limited, and for example, polyamine-based polyamines having amine groups such as polyethyleneimine, diethylenetriamine, piperazine, dimethylenepiperazine, and diphenylamine, or known positive charge layers such as glass fibers may be employed. there is.

The water filter 221b may re-filter the first purified water together with the positive charge filter 221a. The water filter 221b may include a carbon filter for filtering the first purified water.

Either one of the positive charge filter 221a and the water filter 221b may extend to surround the other one. For example, the positive charge filter 221a may extend to surround at least a portion of the water filter 221b when viewed from the top. In addition, a filter passage F3 through which second purified water discharged after being filtered by the positive charge filter 221a and the water filter 221b flows may be formed inside the water filter 221b. As another example, the water filter 221b may extend to surround at least a portion of the positive charge filter 221a when viewed from the top. In addition, a filter passage F3 through which second purified water discharged from the positive charge filter 221a and the water filter 221b flows may be formed inside the positive charge filter 221a.

The discharge tube member 222 may extend upward from the upper upper cap member 223 and may be provided with a purified water discharge passage F4 through which second purified water flows. The purified water discharge passage F4 may communicate with the purified water outlet 120 . Also, the discharge tube member 222 may pass through the upper outer cap member 225 and the upper inner cap member 226 .

The upper upper cap member 223 is disposed inside the upper inner cap member 226 and has a lower portion opened to support the upper side of the second filter unit 221 to accommodate the upper portion of the second filter unit 221 inside. can The upper upper cap member 223 may include an upper upper cap body 223a and an upper upper cap support part 223b.

The upper upper cap body 223a may support the upper side of the second filter unit 221 . Also, the upper upper cap body 223a may be connected to the lower end of the discharge tube member 222 . An upper upper cap hole 223a-1 may be formed in the upper cap body 223a to communicate the filter passage F3 and the purified water discharge passage F4. The purified water flowing in the filter passage F3 may flow to the purified water discharge passage F4 through the upper cap hole 223a-1.

The upper upper cap support portion 223b may extend downward from the upper upper cap body 223a. In addition, the upper upper cap support portion 223b may extend to surround the second filter portion 221 when viewed from the top. In other words, the upper upper cap support part 223b may accommodate the upper part of the second filter part 221 inside. For example, the upper upper cap support portion 223b may extend downward from the circumferential surface of the upper upper cap body 223a.

The upper lower cap member 224 may be disposed inside the upper inner cap member 226 to support the lower side of the second filter unit 221 . In addition, the upper lower cap member 224 is spaced apart from the upper inner cap member 226 by a predetermined distance so that the first purified water flows into the second filter unit 221 to form a purified water transmission passage F5 through which the first purified water flows. can The first purified water discharged from the central tube 212 through the purified water delivery passage F5 may flow to the side of the second filter unit 221 . In addition, the upper lower cap member 224 may include an upper lower cap body 224a and an upper lower cap support part 224b.

The upper lower cap body 224a may be disposed below the second filter unit 221 to support the second filter unit 221 . Also, the upper lower cap body 224a may close the lower side of the filter passage F3.

The upper lower cap support portion 224b extends upward from the upper lower cap body 224a and may extend to surround the second filter unit 221 when viewed from the lower side. In other words, the lower part of the second filter part 221 may be accommodated inside the upper lower cap support part 224b. For example, the upper lower cap support portion 224b may extend upward from the circumferential surface of the upper lower cap body 224a. The upper lower cap support portion 224b may be spaced apart from the upper inner cap member 226 by a predetermined distance to form a purified water transmission passage F5.

The upper outer cap member 225 may be configured to guide raw water to the first filter unit 211 and guide living water to the living water outlet 130 . The upper outer cap member 225 may be disposed inside the housing to accommodate the upper inner cap member 226 . In addition, the lower side of the upper outer cap member 225 is open to accommodate at least a portion of the first filter unit 211 . A raw water flow path F6 may be formed between the upper outer cap member 225 and the inner circumferential surface of the housing to flow raw water to the first filter unit 211 . Raw water may flow to the lower side of the first filter unit 211 by the raw water flow path F6. In addition, a first domestic water flow passage F7 through which water discharged from the first filter unit 211 flows may be formed between the upper outer cap member 225 and the upper inner cap member 226 . The first living water flow passage F7 is in communication with the living water delivery passage F2, so that living water can flow in from the living water delivery passage F2. In addition, a second living water flow passage F8 communicating with the first living water flow passage F7 may be formed between the upper outer cap member 225 and the discharge tube member 222 so that living water is discharged to the outside. The second living water flow passage F8 may communicate with the living water outlet 130 . In addition, the upper outer cap member 225 may include an upper outer cap body 225a, an upper outer cap support part 225b, and an upper outer cap discharge part 225c.

The upper outer cap body 225a may be disposed above the upper inner cap member 226 to form a part of the first living water flow passage F7. In addition, the discharge tube member 222 may pass through the upper outer cap body 225a.

The upper outer cap support portion 225b extends downward from the upper outer cap body 225a and may extend to surround the upper inner cap member 226 when viewed from the top. For example, the upper outer cap support portion 225b may extend downward from the circumferential surface of the upper outer cap body 225a. In addition, the upper outer cap support portion 225b may be spaced apart from the upper inner cap member 226 by a predetermined distance to form a part of the first living water flow passage F7, and may be spaced apart from the inner circumferential surface of the housing 100 by a predetermined distance to supply raw water A flow path F6 may be formed.

The upper outer cap discharge portion 225c extends upward from the upper outer cap body 225a and may extend to surround the discharge tube member 222 when viewed from above. In addition, the upper outer cap discharge part 225c may be spaced apart from the discharge tube member 222 by a predetermined distance to form a second living water flow passage F8. The upper outer cap discharge portion 225c may communicate with the water outlet 130 for living.

The upper inner cap member 226 is disposed inside the upper outer cap member 225 and may accommodate the upper upper cap member 223 and the upper lower cap member 224 . Also, the lower end of the upper inner cap member 226 may be opened so that the lower upper cap member 213 may be disposed. The upper inner cap member 226 may include an upper inner cap body 226a and an upper inner cap support part 226b.

The upper inner cap body 226a may be disposed between the upper upper cap member 223 and the upper outer cap body 225a. In addition, the discharge tube member 222 may pass through the upper inner cap body 226a.

The upper inner cap support portion 226b extends downward from the upper inner cap body 226a and may extend to surround the upper upper cap member 223 and the upper lower cap member 224 when viewed from above. For example, the upper inner cap support portion 226b may extend downward from the circumferential surface of the upper inner cap body 226a. Also, the lower end of the upper inner cap support part 226b may be disposed above the lower end of the upper outer cap member 225 .

The raw water supply unit 20 may receive and receive raw water from the outside of the water purifier 1 or deliver the raw water to the filter assembly 10 .

The channel module 30 may provide a passage through which purified water, raw water, and living water flow. The channel module 30 may include a raw water channel 31, a purified water channel 32, and a domestic water channel 33.

The raw water channel 31 may connect the raw water supply unit 20 and the filter assembly 10 so that raw water flowing into the raw water supply unit 20 is supplied to the filter assembly 10 without being filtered. In other words, the raw water channel 31 may communicate with the inlet 110 of the housing 100.

The purified water channel 32 may provide a passage through which purified water discharged from the filter assembly 10 flows. In other words, the purified water channel 32 communicates with the purified water outlet 120 of the housing 100, and second purified water can flow.

The living water channel 33 may provide a passage through which water for living discharged from the filter assembly flows. In other words, the living water channel 33 may communicate with the living water outlet 130 of the housing 100 .

The valve unit 40 may include a plurality of valve modules that control the flow of raw water, purified water, and living water flowing into or discharged from the filter assembly 10 . The valve unit 40 may include a first valve module 41 , a second valve module 42 and a third valve module 43 .

The first valve module 41 may open and close the raw water channel 31 so that raw water is supplied to the filter assembly 10 . The second valve module 42 may open and close the purified water channel 32 so that purified water is discharged from the filter assembly 10 . The third valve module 43 may open and close the water channel 33 so that the water for living is discharged from the filter assembly 10 .

The controller 50 may control opening and closing of the plurality of valve modules based on a plurality of flow modes. The plurality of flow modes may include a purified water discharge mode and a flushing mode.

With the controller 50, when the plurality of valve modules are in the purified water discharging mode, the plurality of valve modules can open the purified water channel 32 and close the domestic water channel. In such a purified water discharging mode, the first purified water filtered by the first filter unit 211 is introduced into the second filter unit 221 through the purified water flow path F1 and the purified water transfer channel F5, thereby generating second purified water. It can be filtered again and discharged to the purified water channel 32 through the filter passage F3 and the purified water discharge passage F4. In addition, the plurality of valve modules may open the living water channel 33 and close the purified water channel 32 in the flushing mode. In this flushing mode, the domestic water discharged from the first filter unit 211 flows through the domestic water delivery channel F2, the first domestic water flow channel F7, and the second domestic water flow channel F8. 33) can be released. Also, in the flushing mode, the first filter unit 211 may be washed.

The above-described controller 50 may be implemented by an arithmetic unit including a microprocessor, a measurement device such as a sensor, and a memory, and since the implementation method is obvious to those skilled in the art, further detailed description is omitted.

Hereinafter, operations and effects of the water purifier 1 according to an embodiment of the present invention will be described.

Since the filter assembly 10 of the water purifier 1 according to an embodiment of the present invention may include a plurality of different filters inside the housing 100, the water purifier may be miniaturized. In addition, when the filter assembly 10 is replaced, since a plurality of different filters can be replaced at once, user convenience can be improved.

Since the first filter unit 211 constitutes a UF filter extending from the central tube 212 while being wound in a spiral shape, excellent microorganism removal performance of raw water can be secured. Since the second filter unit 221 may include a water filter 221b and a positive charge filter 221a, chemicals not filtered by the first filter unit 211 may be removed and the taste of purified water may be improved. there is. In addition, when the positive charge filter 221a is provided inside the water filter 221b, the fine dust discharged from the water filter 221b can be efficiently filtered by the positive charge filter 221a.

In addition, since the first filter unit 211 can be washed through the periodic flushing mode, there is an effect that the filter assembly 10 can be used permanently.

In addition, the bacteria and virus filtration efficiency of the filter assembly 10 is shown in Table 1 below.

[Table 1]

The amount of K. terrigena (Bacteria) contained in the raw water was 6 log or more before passing through the filter assembly 10 (raw water in Table 1 above), but after passing through the filter assembly 10 (in Table 1 above) The number of passes through the filter) decreased to 0.0. In other words, the log reduction in Table 1 was greater than 6 log.

In addition, the amount of MS2 (Virus) contained in the raw water was 4 log or more before passing through the filter assembly 10 (raw water in Table 1 above), but after passing through the filter assembly 10 (in Table 1 above) The number of passes through the filter) decreased to 0.0. In other words, the log reduction in Table 1 was greater than 4 log.

In addition, these effects were all the same from the 1st to the 5th day of elapsed time. Accordingly, it can be demonstrated that the filter assembly 10 can efficiently filter bacteria and viruses.

Although the embodiments of the present invention have been described as specific embodiments, this is merely an example, and the present invention is not limited thereto, and should be construed as having the widest scope according to the technical idea disclosed herein. A person skilled in the art may implement a pattern of a shape not indicated by combining/substituting the disclosed embodiments, but this also does not deviate from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on this specification, and it is clear that such changes or modifications also fall within the scope of the present invention.

1: water purifier 10: filter assembly
20: raw water supply unit 30: channel module
31: raw water channel 32: integer channel
33: domestic water channel 40: valve unit
41: first valve module 42: second valve module
43: third valve module 50: controller
100: housing 110: inlet
120: purified water outlet 130: living water outlet
200: filtering unit 210: first module
211: first filter unit 211a: membrane sheet
211b: outer mesh 211c: inner mesh
212: central tube 212a: first through hole
213: lower upper cap member 213a: lower upper cap body
213a-1: lower upper cap hole 213b: lower upper cap support
213c: lower upper cap extension part 214: living water sealing part
214a: first sealing member 214b: second sealing member
214c: third sealing member 220: second module
221: second filter unit 221a: positive charge filter
221b: water filter 222: discharge tube member
223: upper upper cap member 223a: upper upper cap body
223a-1: upper upper cap hole 223b: upper upper cap support
224: upper lower cap member 224a: upper lower cap body
224b: upper lower cap support 225: upper outer cap member
225a: upper outer cap body 225b: upper outer cap support
225c: upper outer cap discharge part 226: upper inner cap member
226a: upper inner cap body 226b: upper inner cap support

Claims (10)

housing; and
Including a filtering unit for filtering raw water,
The filter unit,
a first module disposed inside the housing and including a first filter unit filtering the introduced raw water to provide first purified water; and
A second filter unit disposed above the first module, filtering the first purified water to provide second purified water, and spaced apart from the first filter unit, and the second purified water filtered by the second filter unit A second module including a discharge tube member providing a purified water discharge passage through which the second purified water flows to be discharged to the outside;
The first module includes a central tube supporting one side of the first filter unit and having a first through hole to allow the first purified water to flow therein,
The first filter part has a sheet shape extending while being wound in a spiral form from the central tube, and is composed of a UF filter,
The second filter unit,
Including a positive charge filter and a water filter for filtering the first purified water by an adsorption method by positive charge,
filter assembly. According to claim 1,
The first filter unit,
a plurality of membrane sheets attached to each other to form a sheet flow space therein by being attached to the edge of the other side other than the one side; and
Including an outer mesh disposed outside the sheet flow space,
filter assembly. According to claim 2,
The second module,
Further comprising an upper inner cap member for accommodating the second filter unit and guiding the first purified water to the second filter unit;
The discharge tube member passes through the upper inner cap member,
filter assembly. According to claim 3,
The second module,
Including an upper outer cap member accommodating the upper inner cap member,
The discharge tube member is disposed to pass through the upper outer cap member,
A first living water flow passage through which the living water discharged from the first filter unit flows is formed between the upper outer cap member and the upper inner cap member,
A second living water flow passage communicating with the first living water flow passage is formed between the upper outer cap member and the discharge tube member so that the living water is discharged to the outside,
A raw water flow path through which the raw water flows is formed between the upper outer cap member and the inner circumferential surface of the housing,
filter assembly. According to claim 4,
The first module,
Further comprising a living water sealing part including a first sealing member disposed between the upper outer cap member and the first filter part to block the raw water from flowing into the first living water flow passage,
filter assembly. According to claim 4,
The first module,
Further comprising a lower upper cap member supporting an upper side of the first filter unit and guiding the water discharged from the first filter unit to flow into the first living water flow path;
The central tube passes through the lower upper cap member,
filter assembly. According to claim 1,
The second module,
An upper upper cap member and an upper lower cap member supporting the second filter unit,
The discharge tube member extends upward from the upper upper cap member,
filter assembly. According to claim 1,
One of the water filter and the positive charge filter is disposed inside the other,
filter assembly. In the water purifier for filtering raw water,
The filter assembly according to claim 1;
a raw water supply unit receiving the raw water from the outside of the water purifier; and
Including a channel module including a raw water channel configured to supply the raw water flowing into the raw water supply unit to the filter assembly without being filtered.
water purifier. According to claim 9,
a valve unit including a plurality of valve modules for regulating the flow of the raw water, the purified water, and the living water flowing into or discharged from the filter assembly; and
Further comprising a controller for controlling the opening and closing of the plurality of valve modules based on a plurality of flow modes,
The second module,
an upper inner cap member accommodating the second filter unit and guiding the first purified water to the second filter unit; and
Including an upper outer cap member accommodating the upper inner cap member,
The discharge tube member is disposed to pass through the upper inner cap member and the upper outer cap member,
A first living water flow passage through which the living water discharged from the first filter unit flows is formed between the upper outer cap member and the upper inner cap member,
A second living water flow passage communicating with the first living water flow passage is formed between the upper outer cap member and the discharge tube member so that the living water is discharged to the outside,
The channel module,
a living flow channel communicating with the second living water flow channel; and
A purified water channel communicating with the purified water discharge passage;
The plurality of flow modes include a flushing mode for discharging the living water to the outside,
The plurality of valve modules open the life flow channel and close the purified water channel in the flushing mode.
water purifier.

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