KR20200120158A - Filter for water purifier with improved water purification ability including multiple materials - Google Patents

Abstract

The present invention relates to a filter for a water purifier, comprising: a filter housing including a filter body and a filter cap; a first water purifying filter and a second water purifying filter, wherein the first water purifying filter is accommodated in the filter housing and performs primary water purifying treatment on the incoming raw water, and the second water purifying filter performs secondary water purifying treatment on the purified water passing through the first water purifying filter; a flow path guide part including a raw water inlet passage formed in an opening part of the filter housing and into which the raw water flows, a purified water discharge passage through which purified water treated by the first and second water purifying filters is discharged, and a skirt part surrounding and receiving the second water purifying filter in order to prevent that the raw water introduced through the raw water inlet passage and the purified water discharged through the second water filter are mixed; and a filter structure which is sealed at a lower end of the skirt part and supports the first water purifying filter so that the raw water moved to a lower portion of the filter housing passes through the first water purifying filter and then moves to the second water purifying filter.

Description

Filters for water purifiers with improved water purification ability, including multiple materials {FILTER FOR WATER PURIFIER WITH IMPROVED WATER PURIFICATION ABILITY INCLUDING MULTIPLE MATERIALS}

The present invention relates to a filter, and more particularly, to a filter for a water purifier including a plurality of materials to purify incoming raw water.

Recently, as distrust of tap water due to environmental pollution has increased, the use of water purifiers is gradually increasing.The water purifier is a device for filtering tap water or groundwater (hereinafter referred to as "raw water"), and uses various types of filters. By filtering raw water, foreign substances and harmful substances contained in raw water can be removed.

Meanwhile, due to the recent increase in single-person family and small-sized family, there is a demand for a water purifier product that has been miniaturized, slimmed, and complexed, and for this reason, the use of a complex filter in which at least two or more materials are formed in one water filter is increasing.

Patent Application No. 10-2007-77408 discloses a combined filter device for a water purifier.

An embodiment of the present invention relates to a composite filter for a water purifier capable of reducing the number of parts constituting the composite filter of a water purifier to reduce cost, shorten the number of assembly work steps, and improve productivity due to mass production.

In addition, when using a plurality of filters, it is difficult to calculate the lifetime of individual filters, and thus, the difficulty in calculating the filter water level is to be solved.

According to an embodiment of the present disclosure for solving the above problem, a filter housing comprising a filter body and a filter cap; A first water filter that is accommodated in the filter housing and performs primary water treatment of the incoming raw water, and a second water filter that performs secondary water treatment of the purified water passed through the first water filter; A raw water inlet passage through which the raw water is introduced, a purified water discharge passage through which purified water treated by the first and second water filters is discharged, and raw water flowing through the raw water inlet passage, formed in the opening of the filter housing And a flow path guide part including a skirt part surrounding and receiving the second water filter in order to prevent mixing of the purified water discharged through the second water filter; And a filter structure that is sealed at a lower end of the skirt portion and supports the first water filter so that the raw water moved to the lower portion of the filter housing passes through the first water filter and then moves to the second water filter. A multi-box filter for a water purifier is disclosed.

In addition, the first water filter includes at least one of a hollow fiber membrane filter, a carbon block filter, a sediment filter, and a positive charge membrane filter, and the second water filter is a granular carbon filter, a ceramic filter, a sediment filter, and a carbon block filter. It may include at least one of.

In addition, at least 1 for preventing mixing of the raw water that is mounted on the contact portion of the skirt portion and the filter structure to seal the gap of the contact portion, and prevents mixing of the raw water moving to the lower portion of the filter housing and the purified water passing through the first water filter. Heat or more O-rings; may further include.

In addition, in order to prevent mixing of the raw water moving to the lower portion of the filter housing and the purified water passing through the first water filter, the close contact portion of the skirt portion and the filter structure may be sealed by ultrasonic welding or heat bonding.

In addition, when a carbon block filter is used as the second water filter, the water is formed extending at the lower end of the flow path guide, passed through the first water filter, and subjected to primary water treatment, and passes through the second water filter. In order to prevent mixing of the second purified purified water, a supporter may further include a supporter for moving the purified water passing through the second water filter having an upper end of the flow path guide portion sealed to the purified water discharge passage.

In addition, when a granular carbon filter is used as the second water filter, it is mounted on the inlet side of the water discharge passage of the flow guide part, filters the filter residue contained in the purified water passing through the second water filter, and then discharges the purified water. It may further include a filter net to move the passage.

In addition, in order to prevent mixing of the first purified water passed through the first water filter and the second water purified water passed through the second water filter, sealing treatment was performed at the bottom of the second water filter. It may further include a lower holder.

In addition, the second water filter may be formed of at least one of general activated carbon, block-type activated carbon, and fibrous activated plate.

In addition, the second water filter may contain a silver component to have antibacterial properties.

In addition, the flow path guide portion is formed with the raw shoe inlet passage at the center side, the purified water discharge passage is formed at the edge of the raw water inlet passage, or the purified water discharge passage is formed in the center, and between the flow guide portion and the filter cap The raw water inflow passage may be formed in the gap.

According to an embodiment of the present invention, it is possible to reduce the number of parts constituting the composite filter of the water purifier, thereby reducing cost and cost, shortening the number of assembly steps, and improving productivity due to mass production.

In addition, it is possible to solve the difficulty in calculating the filter life that occurs when a plurality of filters are used.

Various aspects are now described with reference to the drawings, wherein like reference numbers are used collectively to refer to like elements. In the following examples, for illustrative purposes, a plurality of specific details are presented to provide a comprehensive understanding of one or more aspects. However, it will be apparent that such aspect(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form to facilitate describing one or more aspects.
1 is a cross-sectional view of a composite filter for a water purifier according to an embodiment of the present disclosure.
2 is a cross-sectional view of a composite filter for a water purifier according to another embodiment of the present invention.
3 and 4 are cross-sectional views of a composite filter for a water purifier according to another embodiment of the present invention.
5 is a diagram illustrating a structure of a first water filter according to an embodiment of the present disclosure.

Objects, features, and advantages of the present disclosure described above will become more apparent through the following embodiments in connection with the accompanying drawings. The following specific structural or functional descriptions are exemplified only for the purpose of describing an embodiment according to the concept of the present disclosure.

As such, embodiments according to the concept of the present disclosure may be implemented in various forms and should not be construed as being limited to the embodiments described in this specification or application.

Since the embodiments according to the concept of the present disclosure can apply various changes and have various forms, specific embodiments are illustrated in the drawings and will be described in detail in the present specification or application. However, this is not intended to limit the embodiments according to the concept of the present disclosure to a specific form of disclosure, and it is to be understood that all changes, equivalents, and substitutes included in the spirit and scope of the present disclosure are included.

Terms such as first and/or second may be used to describe various elements, but the elements are not limited to the terms. The terms are only for the purpose of distinguishing one component from other components, for example, without departing from the scope of rights according to the concept of the present disclosure, the first component may be named as the second component, and similar Thus, the second component may also be referred to as a first component.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a certain component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle. Other expressions used to describe the relationship between constituent elements, such as "between" and "directly between" or "adjacent to" and "directly adjacent to" should be interpreted as well.

Terms used in the present specification are used only to describe specific embodiments, and are not intended to limit the present disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the existence of a set feature, number, step, action, component, part, or combination thereof, but one or more other features or numbers, It is to be understood that the possibility of addition or presence of steps, actions, components, parts, or combinations thereof is not preliminarily excluded.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this specification. Does not.

Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view of a composite filter for a water purifier according to an embodiment of the present disclosure.

A composite filter for a water purifier according to an embodiment of the present disclosure includes a filter housing 1 including a filter body 1a and a filter cap 1b; Two-stage first and second water purification filters 2 and 3 (e.g., filters) that are accommodated in the filter housing 1 and sequentially purify incoming raw water (for example, tap water, groundwater, etc.) After the raw water flowing into the housing 1 is first purified by the first water filter 2, the purified water passing through the first water filter 2 is then purified by the second water filter 3 Processed); The raw water inlet passage 4 formed in the opening of the filter housing 1 and into which the raw water flows, and the purified water discharge passage 5 through which the purified water treated by the first and second water filters 2 and 3 is discharged. , And the raw water introduced through the raw water inlet passage 4 and the purified water discharged through the second water filter 3 to prevent mutual mixing. A flow path guide portion 12 including a skirt portion 10; And the raw water which is sealed at the bottom of the skirt part 10 and moves to the lower part of the filter housing 1 to move to the second water filter 3 after passing through the first water filter 2. 1 A filter structure 13 supporting the water filter 2; may include.

According to an embodiment of the present disclosure, the first water filter 2 and the second water filter 3 may be formed of various materials. For example, referring to FIGS. 1 and 2, a hollow fiber membrane filter (UF filter) may be used as the first water filter 2. In this case, the filter structure 13 may be formed in a cylindrical shape in which upper and lower ends are open.

In addition, when referring to FIG. 1, the second water filter 3 may be formed of a ceramic filter or a carbon block filter, and when referring to FIG. 2, the second water filter 3 may be formed of a granular carbon filter. I can.

According to another embodiment of the present disclosure, referring to FIGS. 3 and 4, a positive charge film filter may be used as the first water filter 2. In this case, the filter structure 13 may include an upper holder 13a and a lower holder 13b supporting upper and lower portions of the first water filter 2.

In addition, when referring to FIG. 3, the second water purification filter 3 may be formed of a ceramic filter or a carbon block filter, and when referring to FIG. 4, the second water purification filter 3 may be formed of a granular carbon filter. I can.

According to an embodiment of the present disclosure, the first water purification filter 2 is a hollow fiber membrane filter (UF filter, which can remove contaminants, etc. through a plurality of micropores distributed on the surface of the membrane, and improve water taste) When provided with, the second water purification filter 3 may be provided as a carbon block filter.

According to an embodiment of the present disclosure, the composite filter for a water purifier may further include at least one row or more O-rings 14. The O-ring 14 is mounted on the close contact part between the skirt part 10 and the filter structure 13 to seal the gap in the tight contact part, and pass through the raw water and the first water filter (2) moving to the bottom of the filter housing (1). It can prevent mixing of purified water.

In addition, according to another embodiment of the present disclosure, in order to prevent mixing of the raw water moving to the lower portion of the filter housing 1 and the purified water passing through the first water filter 2, the skirt portion 13 and the filter structure 13 ) May be sealed by ultrasonic welding or thermal welding.

According to another embodiment of the present disclosure, when referring to FIG. 3, when a carbon block filter is used as the second water filter 3, the first water treated by passing through the first water filter 2, and In order to prevent mixing of the second purified water passing through the second water filter, the composite filter may further include a supporter 11. The supporter 11 is formed extending at the lower end of the flow path guide part 12, and the upper end of the flow guide part 12 is hot-melted and sealed to pass the purified water passing through the second water filter 3 to the flow guide part 12 ) Can be moved to the water discharge passage (5).

According to another embodiment of the present disclosure, when referring to FIG. 4, when a granular carbon filter is used as the second water filter 3, it is mounted on the inlet side of the water discharge passage of the passage guide part 12, and the second After filtering the filter debris contained in the purified water passing through the water purification filter 3, a filter net (for example, non-woven fabric) 20 that is moved to the water discharge passage 5 of the flow guide part 12 is a composite filter Can include.

In order to prevent mixing of the first purified water passed through the first water filter 2 and the second purified water passed through the second water filter 3, the composite filter 3) It may further include a lower holder 9 that is hot melted and sealed at the bottom.

The second water filter 2 may be formed of any one of general activated carbon, block-type activated carbon, and fibrous activated plate, but is not limited thereto. In addition, the second water purification filter 3 may contain a silver component to have antibacterial properties.

According to an exemplary embodiment of the present disclosure, a raw water inlet passage 4 may be formed in the center of the flow guide part 12. In addition, according to another embodiment, the purified water discharge passage 5 is formed in the center of the passage guide portion 12, and the raw water inlet passage 4 is formed in the gap between the passage guide portion 12 and the filter cap 1b. Can be formed.

5 is a diagram illustrating a structure of a first water filter according to an embodiment of the present disclosure.

According to an exemplary embodiment of the present disclosure, the first water filter 2 may be formed of a plurality of layers. For example, the first water filter 2 may be formed of three layers. Specifically, the first water purification filter 2 may include a first positive charge film 2a, a second positive charge film 2b, and a sediment layer (or plastic core) in order.

In this case, at least one of the first positively charged film 2a and the second positively charged film 2b may be coated with granular activated carbon in order to remove unpleasant odor and taste.

The raw water sequentially passes through the first positively charged film 2a, the second positively charged film 2b, and the sediment layer, thereby improving the efficiency of purification.

Hereinafter, an example of using the composite filter for a water purifier according to an embodiment of the present disclosure will be described in detail.

Referring to FIG. 1, raw water such as tap water flows into the filter housing 1 through the raw water inlet passage 4 of the flow path guide 12. In other words, the raw water passing through the raw water inflow passage 4 is moved to the bottom of the filter housing 1 along the gap between the filter housing 1 and the skirt part 10 (moved in the direction of the arrow).

In this case, the raw water moved to the lower portion of the filter housing 1 is introduced through an opening at the bottom of the filter case 13 and is filtered by the first water filter 2 accommodated in the filter case 13.

The purified water that has been primary purified by the first water filter 2 is moved toward the second water filter 3 through the upper opening of the filter case 13. In this case, the raw water passed through the raw water inflow passage 4 and moved toward the first water filter 2 by the O-ring 14 mounted on the close contact portion between the skirt portion 10 and the filter case 13 Mutual mixing of purified water moving toward the second water filter 2 after the first water treatment is performed by the water filter 2 can be prevented.

In addition, as the lower holder 9 at the lower end of the second water filter 3 is hot melted and sealed, the first water treated by the first water filter 2 moves to the second water filter 3 In the meantime, it is possible to prevent the first water treated by passing through the first water filter 2 and the second water treated by the second water filter 3 from being mixed with each other.

On the other hand, the first purified water that passes through the first water filter 2 and moves toward the second water filter 3 is passed through the gap between the skirt part 10 and the second water filter 3 to the upper side of the drawing. Move in the direction

The first purified water that is moved upward along the gap is treated secondarily while moving in the radial direction of the second water filter 3. In other words, the water purified by the second water purification filter is transferred to the water discharge passage 5 of the flow path guide 12 along the water transfer passage 15 formed inside the second water filter 3 do.

In this case, as the upper end of the second water filter 3 is hot-melted and sealed inside the flow path guide 12, the primary water is moved from the first water filter 2 to the second water filter 3 Mixing of the treated purified water and the second purified purified water moved to the purified water discharge passage 5 side of the flow path guide 12 after the water treatment by the second water filter 3 may be prevented.

According to another embodiment of the present disclosure, a raw water inlet passage 4 for introducing raw water into the filter housing 1, and a purified water discharge passage for discharging purified water purified by the first and second water filters 2 and 3 ( 5), and the flow path guide portion 12 including the skirt portion 10 that surrounds and accommodates the second water filter 3 may be integrally formed (eg, may be injection molded integrally). As a result, the number of parts constituting the composite filter can be reduced, and the number of work steps to be assembled can also be reduced, so that the production efficiency can be improved.

The description of the presented embodiments is provided to enable any person skilled in the art to use or implement the present invention. Various modifications to these embodiments will be apparent to those of ordinary skill in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention is not to be limited to the embodiments presented herein, but is to be construed in the widest scope consistent with the principles and novel features presented herein.

Claims (8)

A filter housing including a filter body and a filter cap;
A first water filter that is accommodated in the filter housing and performs primary water treatment of the incoming raw water, and a second water filter that performs secondary water treatment of the purified water passing through the first water filter;
A raw water inlet passage through which the raw water is introduced, a purified water discharge passage through which purified water treated by the first and second water filters is discharged, and raw water flowing through the raw water inlet passage, formed in the opening of the filter housing And a flow path guide part including a skirt part surrounding and receiving the second water filter in order to prevent mixing of the purified water discharged through the second water filter; And
A filter structure that is sealed at the bottom of the skirt part and supports the first water filter so that the raw water moved to the lower part of the filter housing passes through the first water filter and then moves to the second water filter;
Containing,
Filter for water purifier. The method of claim 1,
The first water filter is composed of at least one of a hollow fiber membrane filter, a carbon block filter, a sediment filter, and a positive charge membrane filter, and the second water filter is a granular carbon filter, a ceramic filter, a sediment filter, and a carbon block filter. Consisting of at least one,
Filter for water purifier. The method of claim 1,
In order to prevent mixing of the raw water moving to the lower portion of the filter housing and the purified water passing through the first water filter, at least one row or more is mounted on the tight part of the skirt part and the filter structure to seal the gap between the tight part. O-ring;
Further comprising,
Filter for water purifier. The method of claim 1,
In order to prevent mixing of the raw water moving to the lower portion of the filter housing and the purified water passing through the first water filter, the close contact portion of the skirt portion and the filter structure is sealed by ultrasonic welding or thermal welding,
Filter for water purifier. The method of claim 1,
The second water purification filter is a carbon block filter,
The composite filter,
In order to prevent mixing of the first purified water passed through the first water filter and the second purified water passed through the second water filter, the second water filter was formed to extend at the lower end of the flow path guide. A supporter for moving the purified water passing through to the purified water discharge passage;
Further comprising,
Filter for water purifier. The method of claim 1,
A lower holder provided at the lower end of the second water filter to prevent mixing of the first purified water passed through the first water filter and the second water purified water passed through the second water filter;
Further comprising,
Filter for water purifier. The method of claim 1,
The first water filter is formed of a plurality of layers,
Filter for water purifier. The method of claim 7, wherein the plurality of layers,
Including a first positive charge film layer, a second positive charge film layer, and a sediment layer sequentially arranged from the outside to the inside,
The first positive charge film layer and the second positive charge film layer are coated with granular activated carbon,
Filter for water purifier.

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