KR20230073755A - Composite filter and water purifier with the same - Google Patents

Abstract

The present invention relates to a composite filter and a water purifier comprising the same, and more specifically, to a composite filter with improved manufacturability and a water purifier comprising the same. According to the present invention, user convenience is improved by forming the composite filter by integrating filter members as it is possible to not only receive raw water and purified water but also discharge washing water. A head member of a housing unit is provided with first and second partition walls to form an independent flow path in which the raw water, purified water, and washing water do not mix such that a passage through which the raw water, purified water, and washing water flow are concentrated in an upper part of the composite filter to improve the freedom of layout design of other parts. A filtering unit comprises a first filter member and a second filter member disposed in a stacked structure by using a first body member, a first upper cap member, a second upper cap member, a first lower cap member, and a third upper cap member such that the composite filter can be manufactured by using the previously manufactured first filter member.

Description

Complex filter and water purifier including the same {COMPOSITE FILTER AND WATER PURIFIER WITH THE SAME}

The present invention relates to a composite filter and a water purifier including the same, and as raw water intake, purified water output and washing water discharge are possible, user convenience is improved by configuring a composite filter by integrating filter members, and the head member of the housing unit has raw water , Since the first and second partition walls are provided to form independent passages in which purified water and washing water do not mix, the passage through which raw water, purified water and washing water flows is concentrated on the upper part of the complex filter, thereby improving the layout design freedom of other parts. , The filtering unit is formed by arranging the first filter member and the second filter member in a laminated structure using the first body member, the first upper cap member, the second upper cap member, the first lower cap member, and the third upper cap member. The present invention relates to a composite filter having improved manufacturability by being configured to manufacture a composite filter by utilizing a manufactured first filter member, and a water purifier including the same.

In general, a water purifier is a device that filters obtained raw water into purified water that a user can drink and provides to the user. These water purifiers are used by combining several filters for raw water filtration. When each filter is used in combination, the internal layout of the water purifier becomes complicated and the volume occupied by the filter inside increases, so that the entire water purifier There was a problem with the increase in volume. Therefore, in order to solve this problem, a composite filter in which each filter is integrated is sometimes used.

A water purifying device disclosed in Korean Patent Publication No. 10-2012-0054919 of LG Electronics Co., Ltd. includes a composite filter. The composite filter includes a first filter unit and a second filter unit, and each filter unit is selected from known filters such as an activated carbon filter, a sediment filter, a ceramic filter, and an ultrafiltration filter. However, such a complex filter has a problem in that raw water input and purified water output are separated into upper and lower parts of the filter housing, complicating the internal layout of the water purifier. In addition, since the composite filter is not provided with a configuration for washing the filter, there is a problem in that the replacement cycle of the composite filter is accelerated.

Korean Patent Publication No. 10-2015-0067664 of Coway Co., Ltd. discloses a water filter. Such a water filter includes a first filtering member including a nonwoven fabric composite layer and a carbon filtering unit including granular activated carbon. However, since the composite filter does not have a flow path through which washing water flows, there is a problem in that the replacement cycle of the composite filter is shortened and thus the operating cost of the water purifier increases.

The water purifier disclosed in Korean Patent Publication No. 10-2010-0133123 of Coway Co., Ltd. includes a water filter capable of backwashing. Such a water purifier discloses a backwashing unit for washing a water filter using residual water present in the filtering unit and washing water stored in a washing water storage tank connected to the filtering unit. However, there is a problem in that the size of the entire water purifier is increased because the backwash unit is provided separately from the water filter.

Korean Patent Publication No. 10-2012-0054919 Korean Patent Publication No. 10-2015-0067664 Korean Patent Publication No. 10-2010-0133123

In order to solve the above problem, the composite filter according to the embodiment of the present invention is capable of discharging washing water as well as raw water intake and purified water, so that the filter members are integrated to form a composite filter, thereby improving user convenience, and the housing part The head member is provided with first and second partition walls so that independent passages in which raw water, purified water, and washing water do not mix are formed, so that the passage through which raw water, purified water, and washing water flows is concentrated on the upper part of the composite filter, thereby increasing the degree of freedom in layout design of other parts. The first filter member and the second filter member are laminated using the first body member, the first upper cap member, the second upper cap member, the first lower cap member, and the third upper cap member. It is an object of the present invention to improve manufacturability by configuring a composite filter to be manufactured by utilizing a pre-manufactured first filter member.

In the composite filter according to the embodiment of the present invention, the filtration unit is provided with a second lower cap member coupled to the lower side of the second filter member to improve structural stability, and a passage through which the first purified water moves to the second filter member It is an object of the present invention to improve the manufacturability of a composite filter by allowing the second purified water to be finally discharged to be moved upward.

In the composite filter according to an embodiment of the present invention, since raw water flows into the first filter member through the first upward guide, the passage through which raw water, purified water, and washing water flows are concentrated on the upper part of the composite filter, and the raw water is mixed with purified water or washing water. The purpose is to improve the operational reliability of the composite filter by not mixing.

In the composite filter according to an embodiment of the present invention, since the washing water passing through the first filter member is discharged to the outside through the second upward guide, the washing water is discharged stably and the operation stability of the composite filter is improved. to be

In the composite filter according to an embodiment of the present invention, since the first purified water passing through the first filter member is moved to the lower side of the second filter member through the first lower cap guide, the first filter member and the second filter member An object of the present invention is to improve the operation reliability of the composite filter by smoothly moving the first purified water to the second filter member even if it has a laminated structure.

In the composite filter according to an embodiment of the present invention, as the upper cap guide of the third upper cap member is coupled to the second filter member, the passage through which the second purified water moves between the first filter member and the second filter member is formed. Since it is stably secured, the purpose is to improve the operation stability of the composite filter.

In the composite filter according to an embodiment of the present invention, a plurality of discharge holes are formed on the side surface of the first filter member, and washing water washing the first filter member passes through the plurality of discharge holes to the first filter member and the first body. By moving to the washing water discharge port via the first discharge passage formed between the members, the washing water is moved through an independent flow path without being mixed with raw water or purified water, thereby improving user satisfaction by improving the quality of purified water.

In the composite filter according to the embodiment of the present invention, since a first O-ring is formed between the first upper cap member and the first filter member to prevent the washing water from re-introducing into the first filter member, the washing water is stably supplied to the outside. It is intended to increase the period of use of the first filter member.

In the composite filter according to an embodiment of the present invention, a second O-ring is formed between the second upper cap member and the first body member to prevent the washing water from being mixed with the second purified water, thereby improving the operation reliability of the composite filter. aims to do

In the composite filter according to an embodiment of the present invention, a third O-ring is formed between the first filter member and the first lower cap member to prevent the washing water from flowing into the second filter member, so that the washing water is equal to the first purified water. Its purpose is to improve user satisfaction by preventing mixing and securing the quality of purified water.

In the composite filter according to the embodiment of the present invention, a fourth O-ring is formed between the first body member and the first lower cap member to prevent the washing water from being mixed with the second purified water, thereby improving the operation reliability of the composite filter aims to do

In the composite filter according to an embodiment of the present invention, since a fifth O-ring is formed between the second body member and the third upper cap member to prevent the second purified water from re-introducing into the second filter member, the second purified water The purpose is to smoothly move to the top to improve the operational stability of the composite filter.

In the composite filter according to the embodiment of the present invention, since the first spacer is formed between the first upper cap member and the first body member, the washing water flows upward smoothly between the first upper cap member and the second upper cap member. It is moved to improve the operation reliability of the composite filter.

In the composite filter according to an embodiment of the present invention, since the second spacer is formed between the second upper cap member and the case member, purified water is smoothly moved between the second upper cap member and the case member, thereby ensuring operational reliability of the composite filter. is aimed at improving

In the water purifier according to an embodiment of the present invention, raw water and washing water are selectively supplied to the composite filter, so that the composite filter is washed by the washing water without mixing the purified water finally discharged with the washing water, so that the product life of the composite filter is increased. It aims to improve user satisfaction.

In the water purifier according to an embodiment of the present invention, since the washing module uses raw water supplied from the raw water supply unit as washing water, a separate fluid supply for use as washing water in the washing module is not required, thereby improving the manufacturability of the water purifier. aims to

An object of the water purifier according to an embodiment of the present invention is to improve the cleaning efficiency of the composite filter by using purified water as washing water in the cleaning module.

In order to achieve the above object, a composite filter according to an embodiment of the present invention includes a housing having a raw water intake port through which raw water is obtained, a purified water outlet port through which filtered purified water is discharged, and a washing water discharge port through which washing water is discharged; and a first filter member filtering the raw water to generate first purified water, and filtering the first purified water to generate second purified water, wherein the second filter member is stacked and disposed below the first filter member. filter unit; The housing unit includes: a head member having a first partition wall for preventing mixing of the raw water and the washing water and a second partition wall for preventing mixing of the purified water and the washing water; and a case member extending from the head member and having the filtering unit disposed therein. It includes, wherein the filtering unit, a first body member surrounding the first filter member; a first upper cap member on which the first filter member is disposed below; a second upper cap member in which the first upper cap member is disposed on a lower side and the first body member is disposed on a lower side; a first lower cap member on which the first filter member is disposed above and penetrating the second filter member; a second body member surrounding the second filter member; and a third upper cap member on which the second filter member is disposed below. It is characterized in that it includes.

In the composite filter according to an embodiment of the present invention, the filtering unit may further include a second lower cap member coupled to a lower side of the second filter member.

In the composite filter according to an embodiment of the present invention, the second lower cap member includes a second lower cap guide extending upward to be coupled with the second filter member.

In the composite filter according to an embodiment of the present invention, the first upper cap member includes a first upward guide extending upward so that the raw water flows into the second filter member.

In the composite filter according to an embodiment of the present invention, the second upper cap member may include a second upward guide extending upward to allow the washing water to be discharged from the first filter member.

In the composite filter according to an embodiment of the present invention, the first lower cap member includes a first lower cap guide extending downward to pass through the second filter member.

In the composite filter according to an embodiment of the present invention, the third upper cap member includes an upper cap guide extending downward to be coupled with the second filter member.

In the composite filter according to an embodiment of the present invention, after washing the first filter member, the washing water passes through the first discharge passage formed between the first filter member and the first body member to the washing water discharge port. It is characterized by moving to.

In the composite filter according to an embodiment of the present invention, a plurality of discharge holes communicating with the first discharge passage are formed on a side surface of the first filter member, and the washing water washing the first filter member is discharged through the plurality of discharge holes. It is characterized in that it moves to the first discharge passage through the hole.

In the composite filter according to an embodiment of the present invention, a second discharge passage communicating with the first discharge passage is formed between the first upper cap member and the second upper cap member, and the second discharge passage communicates with the first discharge passage. It is characterized in that it communicates with the washing water discharge port.

In the composite filter according to an embodiment of the present invention, a first O-ring is formed between the first upper cap member and the first filter member to prevent the washing water from re-introducing into the first filter member. to be

In the composite filter according to an embodiment of the present invention, a second O-ring is formed between the second upper cap member and the first body member to prevent the washing water from being mixed with the second purified water. .

In the composite filter according to an embodiment of the present invention, a third O-ring is formed between the first filter member and the first lower cap member to prevent the washing water from flowing into the second filter member. do.

In the composite filter according to an embodiment of the present invention, a fourth O-ring is formed between the first body member and the first lower cap member to prevent the washing water from being mixed with the second purified water. .

In the composite filter according to an embodiment of the present invention, a fifth O-ring is formed between the second body member and the third upper cap member to prevent the second purified water from re-introducing into the second filter member. characterized by

In the composite filter according to an embodiment of the present invention, a first spacer is formed between the first upper cap member and the first body member to be spaced apart from each other at a predetermined interval.

In the composite filter according to an embodiment of the present invention, a second spacer is formed between the second upper cap member and the case member to be spaced apart from each other at a predetermined interval.

The water purifier according to an embodiment of the present invention includes a raw water supply unit for controlling the supply of raw water; A complex filter for receiving and filtering raw water supplied from the raw water supply unit; a purified water discharge unit controlling the discharge of purified water filtered by the composite filter; and a washing module provided between the raw water supply unit and the complex filter and controlling the supply of washing water to the complex filter, wherein the complex filter includes a first filter member configured to filter the raw water and generate first purified water; a filtering unit configured to filter the first purified water to generate a second purified water and include a second filter member stacked under the first filter member; It includes, wherein the filtering unit, a first body member surrounding the first filter; a first upper cap member on which the first filter member is disposed below; a second upper cap member in which the first upper cap member is disposed on a lower side and the first body member is disposed on a lower side; a first lower cap member on which the first filter member is disposed above and penetrating the second filter member; a second body member surrounding the second filter member; and a third upper cap member on which the second filter member is disposed below. Including, characterized in that the raw water and the washing water are selectively supplied to the composite filter.

In the water purifier according to an embodiment of the present invention, the complex filter includes a housing having a raw water intake port through which raw water is received, a purified water outlet port through which filtered purified water is discharged, and a washing water discharge port through which washing water is discharged; The head member further includes, wherein the housing unit includes a first partition wall for preventing mixing of the raw water and the washing water, and a second partition wall for preventing mixing of the purified water and the washing water; and a case member extending from the head member and having the filtering unit disposed therein. It is characterized in that it includes.

In the water purifier according to an embodiment of the present invention, the washing module is characterized in that the composite filter is washed using the raw water supplied from the raw water supply unit.

The water purifier according to an embodiment of the present invention further includes a purified water storage tank connected to the purified water discharge unit and supplied with purified water filtered by the composite filter, wherein the washing module includes purified water supplied from the purified water storage tank. It is characterized in that the composite filter is washed using.

According to the configuration described above, the composite filter according to the embodiment of the present invention is capable of discharging washing water as well as raw water intake and purified water, and thus the user's convenience is improved by integrating the filter members to configure the composite filter, and the head member of the housing unit First and second partition walls are provided to form independent passages in which raw water, purified water, and washing water do not mix, so that the passage through which raw water, purified water, and washing water flows is concentrated on the upper part of the complex filter to improve the layout design freedom of other parts. In the filtering unit, the first filter member and the second filter member are arranged in a laminated structure using a first body member, a first upper cap member, a second upper cap member, a first lower cap member, and a third upper cap member. Accordingly, a composite filter may be manufactured using a pre-manufactured first filter member, thereby providing an effect of improving manufacturability.

In the composite filter according to the embodiment of the present invention, the filtration unit is provided with a second lower cap member coupled to the lower side of the second filter member to improve structural stability, and a passage through which the first purified water moves to the second filter member is formed so that the second purified water that is finally discharged is moved upward, thereby providing an effect of improving the manufacturability of the composite filter.

In the composite filter according to an embodiment of the present invention, since raw water flows into the first filter member through the first upward guide, the passage through which raw water, purified water, and washing water flows are concentrated on the upper part of the composite filter, and the raw water is mixed with purified water or washing water. It does not mix, providing an effect of improving the operational reliability of the composite filter.

In the composite filter according to an embodiment of the present invention, since the washing water passing through the first filter member is discharged to the outside through the second upward guide, the washing water is discharged stably and the operation stability of the composite filter is improved. to provide.

In the composite filter according to an embodiment of the present invention, since the first purified water passing through the first filter member is moved to the lower side of the second filter member through the first lower cap guide, the first filter member and the second filter member Even if it has a stacked structure, the first purified water is smoothly moved to the second filter member, providing an effect of improving the operation reliability of the composite filter.

In the composite filter according to an embodiment of the present invention, as the upper cap guide of the third upper cap member is coupled to the second filter member, the passage through which the second purified water moves between the first filter member and the second filter member is formed. Since it is secured stably, it provides an effect of improving the operation stability of the composite filter.

In the composite filter according to an embodiment of the present invention, a plurality of discharge holes are formed on the side surface of the first filter member, and washing water washing the first filter member passes through the plurality of discharge holes to the first filter member and the first body. As the washing water is moved to the washing water discharge port via the first discharge passage formed between the members, the washing water is moved through an independent flow path without being mixed with raw water or purified water, thereby improving user satisfaction through improved water quality.

In the composite filter according to the embodiment of the present invention, since a first O-ring is formed between the first upper cap member and the first filter member to prevent the washing water from re-introducing into the first filter member, the washing water is stably supplied to the outside. is discharged to provide an effect of increasing the period of use of the first filter member.

In the composite filter according to an embodiment of the present invention, a second O-ring is formed between the second upper cap member and the first body member to prevent the washing water from being mixed with the second purified water, thereby improving the operation reliability of the composite filter. provides the effect of

In the composite filter according to an embodiment of the present invention, a third O-ring is formed between the first filter member and the first lower cap member to prevent the washing water from flowing into the second filter member, so that the washing water is equal to the first purified water. It provides an effect of improving user satisfaction through securing the quality of purified water by preventing mixing.

In the composite filter according to the embodiment of the present invention, a fourth O-ring is formed between the first body member and the first lower cap member to prevent the washing water from being mixed with the second purified water, thereby improving the operation reliability of the composite filter provides the effect of

In the composite filter according to an embodiment of the present invention, since a fifth O-ring is formed between the second body member and the third upper cap member to prevent the second purified water from re-introducing into the second filter member, the second purified water is smoothly moved upward to provide an effect of improving the operation stability of the composite filter.

In the composite filter according to the embodiment of the present invention, since the first spacer is formed between the first upper cap member and the first body member, the washing water flows upward smoothly between the first upper cap member and the second upper cap member. It is moved to provide an effect of improving the operational reliability of the composite filter.

In the composite filter according to an embodiment of the present invention, since the second spacer is formed between the second upper cap member and the case member, purified water is smoothly moved between the second upper cap member and the case member, thereby ensuring operational reliability of the composite filter. provides the effect of enhancing

In the water purifier according to an embodiment of the present invention, raw water and washing water are selectively supplied to the composite filter, so that the composite filter is washed by the washing water without mixing the purified water finally discharged with the washing water, so that the product life of the composite filter is increased. It provides the effect of improving user satisfaction.

In the water purifier according to an embodiment of the present invention, since the washing module uses raw water supplied from the raw water supply unit as washing water, a separate fluid supply for use as washing water in the washing module is not required, thereby improving the manufacturability of the water purifier. provide effect.

In the water purifier according to an embodiment of the present invention, the washing module uses purified water as washing water, thereby providing an effect of improving the washing efficiency of the composite filter.

1 is a view schematically showing the appearance of a composite filter according to an embodiment of the present invention.
2 is a plan view showing a head member of a composite filter according to an embodiment of the present invention.
3 is a cross-sectional view showing an assembled state of the filtration unit of the composite filter according to an embodiment of the present invention.
4 is a cross-sectional view showing a separated state of the filtration unit of the composite filter according to an embodiment of the present invention.
5 is a cross-sectional view showing a state in which the filtration unit of the composite filter according to an embodiment of the present invention is installed in the housing unit.
6 is a schematic configuration diagram of a water purifier according to an embodiment of the present invention.
7 is a schematic configuration diagram of a water purifier according to another embodiment of the present invention.
8 is a schematic configuration diagram of a water purifier according to another embodiment of the present invention.

Words and terms used in this specification and claims are not construed as limited in their ordinary or dictionary meanings, but in accordance with the principle that the inventors can define terms and concepts in order to best describe their inventions. It should be interpreted as a meaning and concept that corresponds to the technical idea.

Therefore, the embodiments described in this specification and the configurations shown in the drawings correspond to a preferred embodiment of the present invention, and do not represent all the technical ideas of the present invention, so that the corresponding configurations are various to replace them at the time of filing of the present invention. There may be equivalents and variations.

In this specification, terms such as "include" or "have" are intended to describe the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

The fact that a component is located "above" or "below" another component means that it is directly adjacent to and placed "above" or "below" another component, unless there are special circumstances, as well as another component in the middle. Including when placed. In addition, the fact that certain components are “connected” to other components includes cases where they are not only directly connected to each other but also indirectly connected to each other unless there are special circumstances.

Hereinafter, a composite filter according to an embodiment of the present invention and a water purifier including the composite filter will be described with reference to the drawings. 1 is a view schematically showing the appearance of a composite filter according to an embodiment of the present invention, Figure 2 is a plan view showing a head member of the composite filter according to an embodiment of the present invention, Figure 3 is a view showing the embodiment of the present invention It is a cross-sectional view showing an assembled state of the filtration unit of the composite filter according to FIG. Here, a means the axial direction of the composite filter, and r means the radial direction of the composite filter.

As shown in FIGS. 1 to 3, the composite filter 900 of the present invention includes a raw water intake port 920 through which raw water W1 is obtained, a purified water outlet port 930 through which filtered purified water C is discharged, and A housing part 910 having a washing water discharge port 940 through which washing water W2 is discharged and a first filter member 1010 filtering the raw water W1 to generate first purified water C1; A filtering unit 1000 is provided with a second filter member 1020 disposed under the first filter member 1010 to generate a second purified water C2 by filtering 1 purified water C1. That is, the raw water W1 obtained through the raw water intake port 920 moves to the filtering unit 1000 and then the first filter member 1010 and the second filter member 1010 provided in the filtering unit 1000. It is filtered while sequentially moving the filter member 1020, and finally filtered purified water C is discharged through the purified water outlet port 930 and then provided to the user. In addition, the purified water C may be stored in a separate purified water tank (not shown), or a cold water generator (not shown), a hot water generator (not shown), and an ice generator (not shown) for generating cold water, hot water, and ice. ) can be supplied. Then, the first purified water C1 moves to the lower side of the first filter member 1010 and then moves to the second filter member 1020, and the washing water W2 moves to the first filter member 1010. After washing, the composite filter 900 moves to the first discharge passage 1101 formed between the first filter member 1010 and the first body member 1030 through the washing water discharge port 940. discharged to the outside In this way, the first filter member 1010 and the second filter member 1020 are integrated so that not only the inflow of the raw water W1 and the outflow of the purified water C but also the discharge of the washing water W2 are possible. User convenience is improved as a composite filter can be configured, and by washing the first filter member 1010 using the washing water W2, the product lifespan of the composite filter 900 is increased, resulting in user convenience. this improves In this case, the first filter member 1010 may be a UF (Ultra Filtration) filter that filters out contaminants by means of a hollow fiber membrane. Also, the second filter member 1020 may be a carbon filter or a microfiltration (MF) filter. Also, the second filter member 1020 may include an electrodeionization-type filter. The electric deionization method refers to EDI (Electro Deionization), CEDI (Continuous Electro Deionization), CDI (Capacitive Deionization), or the like. At this time, a separate filter member may be provided on the outer surface of the second filter member 1020 . As an example, this separate filter element may be an NT filter element. Such an NT filter member may be made of a material that is charged with static electricity to adsorb foreign substances included in the introduced raw water W1, for example, a nano trap material. These electrostatic materials can be configured to carry a positive charge. Accordingly, negatively charged foreign substances included in the raw water W1, such as viruses, bacteria, and fine particles, may be adsorbed to the NT filter member by static electricity. Also, this separate filter member may be a sediment filter member.

As shown in FIG. 2 , in the composite filter according to an embodiment of the present invention, the housing part 910 is a first partition wall 911a preventing mixing of the raw water W1 and the washing water W2. ), and a second partition wall 911b for preventing mixing of the purified water C and the washing water W2 is provided and extends from the head member 911 and the head member 911. It includes a case member 912 on which the filtering unit 1000 is disposed. That is, it is a structure in which not only the incoming raw water (W1) but also the second purified water (C2) and the washing water (W2) discharged are discharged/discharged to the upper part of the composite filter 900, and for this, the head member ( 911) is formed with a raw water area 921 from which the raw water W1 is received, a second purified water area 931 from which the second purified water C2 is discharged, and a washing water area 941 from which the washing water W2 is discharged. do. To this end, independent flow paths in which the raw water W1, the second purified water C2, and the washing water W2 are not mixed are formed in the head member 911 of the housing part 910, so that the first and second water channels are formed. Since the partition walls 911a and 911b are provided, the water outlet/discharge is concentrated on the upper part of the composite filter 900, and the layout design freedom of other parts is improved. Here, the washing water W2 flowing into the first filter member 1010 washes the first filter member 1010 using the raw water W1. However, the washing water W2 is not limited to using only the raw water W1, and purified water may be used.

As shown in FIG. 3 , the filtering unit 1000 includes a first body member 1030 surrounding the first filter member 1010 and a first upper in which the first filter member 1010 is disposed on the lower side. A cap member 1040, the first upper cap member 1040 disposed on the lower side, and the second upper cap member 1050 having the first body member 1030 disposed on the lower side, the first filter member 1010 ) is disposed on the upper side, the first lower cap member 1060 penetrating the second filter member 1020, the second body member 1070 surrounding the second filter member 1020, and the second filter The member 1020 includes a third upper cap member 1080 disposed on the lower side. At this time, the raw water W1 moves through the inside of the first upper cap member 1040, and the washing water W2 passes between the first filter member 1010 and the first body member 1030. so that it moves upward through between the first upper cap member 1040 and the second upper cap member 1050, and the integer C moves upward through the inside of the case member 912, thereby An independent flow path is formed in which the raw water (W1), the washing water (W2), and the purified water (C) are not mixed, so that the first filter member 1010 and the second filter member 1020 are integrated and manufacturability is improved. do.

As shown in FIG. 3 , a plurality of discharge holes 1011 spaced apart from each other are provided on the side surface of the first filter member 1010 . At this time, the plurality of discharge holes 1011 have the same size. However, the size of the plurality of discharge holes 1011 is not limited to the same size, and may increase or decrease in the downward direction. In addition, the plurality of discharge holes 1011 are spaced apart from each other at equal intervals. However, the plurality of discharge holes 1011 are not limited to being spaced apart from each other at equal intervals, and may be spaced apart from each other in a downward direction. A first discharge passage 1101 through which the washing water W2 flows is provided between the first filter member 1010 and the first body member 1030 . At this time, the plurality of discharge holes 1011 communicate with the first discharge passage 1101 . The washing water W2 washing the first filter member 1010 is moved to the first discharge passage 1101 through the plurality of discharge holes 1011 . A second discharge passage 1102 communicating with the first discharge passage 1101 is provided between the first upper cap member 1040 and the second upper cap member 1050 . At this time, the second discharge passage 1102 communicates with the wash water discharge port 940 (see FIG. 2). Through this, the washing water W2 washing the first filter member 1010 is discharged through the plurality of discharge holes 1011, the first discharge passage 1101, the second discharge passage 1102 and the washing water. It is discharged to the outside of the composite filter 900 via the port 940 sequentially. In this way, the composite filter 900 according to the embodiment of the present invention is manufactured by integrating the first filter member 1010 and the second filter member 1020, and the washing water W2 is mixed with the purified water C. The operation reliability of the composite filter 900 is improved by being discharged without being mixed with each other.

4 is a cross-sectional view showing a separated state of the filtration unit of the composite filter according to an embodiment of the present invention.

3 and 4, in the filtering unit 1000 of the composite filter according to the embodiment of the present invention, the first filter member 1010 is disposed below the first upper cap member 1040. position, the first upper cap member 1040 is located below the second upper cap member 1050, and the first lower cap member 1060 is located below the first filter member 1010, The second filter member 1020 is positioned below the third upper cap member 1080 . The first upper cap member 1040, the second upper cap member 1050, the first lower cap member 1060, and the third upper cap member 1080 are connected to the first filter member 1010 and the Since the second filter member 1020 is assembled to have a laminated structure, manufacturability of the composite filter 900 is improved. In addition, the first body member 1030 surrounds the first filter member 1010 and is spaced apart from the first filter member 1010, so that separate passages are provided inside and outside the first body member 1030. Since is formed, while the first filter member 1010 and the second filter member 1020 have a laminated structure, the raw water W1, the purified water C, and the washing water W2 are not mixed and independent The operation reliability of the composite filter 900 is secured by forming a flow path.

As shown in FIGS. 3 and 4 , in the filtering unit 1000 of the composite filter according to the embodiment of the present invention, the first upper cap member 1040 is the first filter member when the raw water W1 is It includes a first upward guide 1041 extending upward to flow into (1010). That is, as the first upper cap member 1040 is provided with the first upward guide 1041 through which the raw water W1 flows, the inflow of the raw water W1 and the discharge of the washing water W2 are separated, Operational reliability of the composite filter 900 is secured. In addition, the first partition wall 911a (see FIG. 2 ) extends in the axial direction along the first upward guide 1041 . That is, the raw water W1 is smoothly moved to the first filter member 1010 through the first partition wall 911a (see FIG. 2 ) and the first upward guide 1041 . In addition, the first upper cap member 1040 includes a first downward guide 1042 extending downward. The first downward guide 1042 is formed to surround the upper portion of the first filter member 1010 and is coupled to the first filter member 1010 so that the first upper cap member 1040 is the first downward guide. It is stably coupled to the upper portion of the first filter member 1010 by 1042 .

3 and 4, in the filtering unit 1000 of the composite filter according to the embodiment of the present invention, the second upper cap member 1050 removes the first filter member 1010. A second upward guide 1051 is disposed extending upward so that the passing washing water W2 is discharged to the outside of the composite filter 900 . At this time, the second upward guide 1051 surrounds the first upward guide 1041 and is spaced apart from each other. And, as the second upper cap member 1050 is provided with the second upward guide 1051 through which the washing water W2 flows, the washing water W2 is discharged from the purified water C by being separated. Operational reliability of the composite filter 900 is secured. Also, the second partition wall 911b (see FIG. 2 ) extends in the axial direction along the second upward guide 1051 . That is, after moving upward along the second upward guide 1051, the washing water W2 smoothly moves to the washing water discharge port 940 through the second partition wall 911b (see FIG. 2), Operational reliability of the composite filter 900 is secured. In addition, the second upper cap member 1050 includes a second downward guide 1052 extending downward. Also, the second downward guide 1052 surrounds the first downward guide 1042 and is spaced apart from each other. That is, a passage through which the washing water passes through the first discharge passage 1101 is formed between the first downward guide 1042 and the second downward guide 1052 . In this case, the upper portion of the first body member 1030 is disposed between the first downward guide 1042 and the second downward guide 1052 .

In addition, as shown in FIGS. 3 and 4, in the filtration unit 1000 of the composite filter according to the embodiment of the present invention, the first lower cap member 1060 includes a third upward guide ( 1061). The third upward guide 1061 surrounds the lower portion of the first filter member 1010 and is coupled to the first filter member 1010 so that the first lower cap member 1060 is the first filter member 1010 ) is stably fixed at In addition, the first lower cap member 1060 includes a first lower cap guide 1062 extending downward to pass through the second filter member 1020 . An outer diameter of the first lower cap guide 1062 is smaller than an inner diameter of the second filter member 1020 . In addition, as the first purified water C1 passing through the first filter member 1010 is moved to the lower part of the second filter member 1020 along the inner side of the first lower cap guide 1062, the first Operational stability of the composite filter 900 is secured by preventing mixing of the first purified water C1 and the second purified water C2 passing through the second filter member 1020 .

3 and 4, in the filtering unit 1000 of the composite filter according to the embodiment of the present invention, the third upper cap member 1080 is the second filter member 1020 and It includes an upper cap guide 1082 arranged to extend downward to be coupled. Also, the upper cap guide 1082 is formed to surround the upper portion of the second filter member 1020 so that the third upper cap member 1080 is connected to the second filter member 1082 by the upper cap guide 1082 ( 1020) is stably fixed. In addition, the third upper cap member 1080 includes an upper cap support member 1081 extending upwardly. The upper cap support member 1081 is formed so that the first lower cap member 1060 and the third upper cap member 1080 are spaced apart from each other. Accordingly, the second integer C2 passing through the second filter member 1020 is moved through the upper part of the third upper cap member 1080, so that the second integer C2 becomes the first integer. An independent flow path is formed that moves to the upper part of the composite filter 900 without being mixed with (C1) to secure the quality of the purified water and improve user satisfaction.

3 and 4, the filtration unit 1000 of the composite filter according to the embodiment of the present invention further includes a second lower cap member 1090 coupled to the lower side of the second filter member 1020 include In addition, the second lower cap member 1090 includes a second lower cap guide 1091 extending upward to be coupled with the second filter member 1020 . As the second lower cap guide 1091 comes into contact with the lower outer circumferential surface of the second filter member 1020, the second lower cap guide 1091 stably fixes the second filter member 1020, The durability of the composite filter 900 is improved. Accordingly, the second lower cap member 1090 stably fixes the second filter member 1020 together with the third upper cap member 1080, so that the composite filter ( 900) can be modularized and workability is improved. In addition, the second lower cap member 1090 is provided with a lower leg 1092 extending downward toward the lower surface of the second body member 1070 . The lower leg 1092 is formed such that the second lower cap member 1090 is spaced apart from the second body member 1070 . And, since the second lower cap member 1090 is spaced apart from the second body member 1070 by the lower leg 1092, the first integer passing through the first lower cap member 1060 ( After C1) is moved along the lower part of the second filter member 1020, it is moved to the second filter member 1020, so that operation stability of the composite filter 900 is secured.

In addition, as shown in FIGS. 3 and 4, the second filter member 1020, the third upper cap member 1080, and the second lower cap member 1090 are included in the second body member 1070. By being mounted, modularization of the composite filter 900 is possible, and workability is improved.

3 and 4, in the filtering unit 1000 of the composite filter according to the embodiment of the present invention, between the first upper cap member 1040 and the first filter member 1010 A first O-ring 1201 for preventing the washing water W2 from re-introducing into the first filter member 1010 is formed. The first O-ring 1201 is made of rubber or silicon. However, the first O-ring 1201 is not limited to being made of rubber or silicon, and may be made of various materials having elasticity. The first O-ring 1201 seals the space between the first filter member 1010 and the first upper cap member 1040 so that the washing water W2 moving through the first discharge passage 1101 Reflow into the first filter member 1010 is prevented.

3 and 4, in the filtration unit 1000 of the composite filter according to the embodiment of the present invention, between the second upper cap member 1050 and the first body member 1030 A second O-ring 1202 is formed to prevent the washing water W2 from being mixed with the second purified water C2. The second O-ring 1202 is made of rubber or silicon. However, the second O-ring 1202 is not limited to being made of rubber or silicon, and may be made of various materials having elasticity. Further, the second O-ring 1202 seals between the second upper cap member 1050 and the first body member 1030 so that the second purified water C2 passes through the first discharge passage 1101 or the first body member 1030. Inflow into the second discharge passage 1102 is prevented.

In addition, as shown in FIGS. 3 and 4, in the filtration unit 1000 of the composite filter according to the embodiment of the present invention, between the first filter member 1010 and the first lower cap member 1060 A third O-ring 1203 is formed to prevent the washing water from flowing into the second filter member 1020 . The third O-ring 1203 is made of rubber or silicon. However, the third O-ring 1203 is not limited to being made of rubber or silicon, and may be made of various materials having elasticity. In addition, the third O-ring 1203 seals between the first filter member 1010 and the first lower cap member 1060 to prevent the second purified water C2 from being mixed with the washing water W2 Thus, the operation stability of the composite filter 900 is secured.

In addition, as shown in FIGS. 3 and 4, in the filtration unit 1000 of the composite filter according to the embodiment of the present invention, between the first body member 1030 and the first lower cap member 1060 A fourth O-ring 1204 is formed to prevent mixing of the washing water W2 with the second purified water C2. The fourth O-ring 1204 is made of rubber or silicon. However, the fourth O-ring 1204 is not limited to being made of rubber or silicon, and may be made of various materials having elasticity. And, the fourth O-ring 1204 seals between the first body member 1030 and the first lower cap member 1060 so that the second purified water C2 moves to the first discharge passage 1101 operation stability of the complex filter 900 is secured.

3 and 4, in the filtration unit 1000 of the composite filter according to the embodiment of the present invention, between the second body member 1070 and the third upper cap member 1080 A fifth O-ring 1205 is formed to prevent the second purified water C2 from re-introducing into the second filter member 1020 . The fifth O-ring 1205 is made of rubber or silicon. However, the fifth O-ring 1205 is not limited to being made of rubber or silicon, and may be made of various materials having elasticity. The fifth O-ring 1205 seals between the second body member 1070 and the third upper cap member 1080 so that the first purified water C1 is mixed with the second purified water C2. operation stability of the composite filter 900 is secured by preventing the

3 and 4, in the filtration unit 1000 of the composite filter according to the embodiment of the present invention, between the first upper cap member 1040 and the first body member 1030 A first spacer 1211 is provided to be spaced apart from each other at regular intervals. Accordingly, the first spacer 1211 prevents the first discharge passage 1101 and the second discharge passage 1102 from being blocked with each other. In addition, as the elastic force of the first O-ring 1201 is provided so that the first spacer 1211 is pressed toward the first body member 1030, the first upper cap member 1040 is the first spacer 1211 and the first O-ring 1201 are stably fixed between the first filter member 1010 and the first body member 1030.

3 and 4, in the filtration unit 1000 of the composite filter according to the embodiment of the present invention, the second upper cap member 1050 and the case member 912 (see FIG. 5) ) Between them, a second spacer 1212 is provided to be spaced apart from each other at regular intervals. Accordingly, the second spacer 1212 prevents clogging between the second upper cap member 1050 and the case member 912 (see FIG. 5) so that the constant C is generated in the case member 912 (see FIG. 5). 5) is smoothly moved along the inner side. In addition, as the elastic force of the second O-ring 1202 is applied to the second spacer 1212 to be pressed toward the case member 912 (see FIG. 5), the second upper cap member 1050 2 The spacer 1212 and the second O-ring 1202 are stably fixed between the case member 912 (see FIG. 5 ) and the first body member 1030 .

5 is a cross-sectional view showing a state in which the filtration unit of the composite filter according to an embodiment of the present invention is installed in the housing unit.

As shown in FIG. 5 , the raw water W1 introduced through the raw water inlet port 520 (see FIG. 2 ) moves to the first filter member 1010 through the first upper cap member 1040 . do. Also, the first purified water C1 passing through the first filter member 1010 is moved to the lower portion of the second filter member 1020 through the first lower cap member 1060 . In this case, a first purified water passage 1121 through which the first purified water C1 is moved is formed between the second body member 1070 and the second filter member 1020 . The first purified water C1 is introduced into the second filter member 1020 while moving along the first purified water channel 1121 . Also, a second purified water passage 1121 through which the second purified water C2 is moved is formed between the second filter member 1020 and the first lower cap member 1060 . The second purified water C2 passing through the second filter member 1020 is moved upward along the second purified water passage 1121, and the third upper cap member 1080 and the first lower cap member ( 1060). A third water purification channel 1123 through which the second water purification C2 is moved is formed between the case member 912 and the first body member 1030 . The second purified water C2 moves upward along the third purified water channel 1123 .

In this way, the composite filter 900 according to the embodiment of the present invention forms an independent flow path through the upper part for the inflow of the raw water (W1), the outflow of the purified water (C), and the discharge of the washing water (W2) while forming an independent flow path. The first filter member 1010 and the first filter member 1010 are formed by the first upper cap member 1040, the second upper cap member 1050, the first lower cap member 1060, and the third upper cap member 1080. By assembling the two filter members 1020 to have a laminated structure, modularization of the composite filter is possible and the user does not need to operate a separate configuration for cleaning, thereby improving user convenience.

6 is a schematic configuration diagram of a water purifier according to an embodiment of the present invention.

As shown in FIG. 6, the water purifier 1200 according to an embodiment of the present invention includes a raw water supply unit 1210 that controls the supply of raw water W1, and supplies the raw water W1 from the raw water supply unit 1210. A composite filter 900 for receiving and filtering, a purified water discharge unit 1220 controlling discharge of purified water C filtered by the composite filter 900, and between the raw water supply unit 1210 and the composite filter 900 and a washing module 1230 for controlling the supply of washing water W2 to the composite filter 900, wherein the raw water W1 and the washing water W2 are selectively supplied to the composite filter 900. do.

At this time, the raw water supply unit 1210 controls the supply of the raw water W1 so that the raw water W1 is prevented from being excessively supplied to the composite filter 900 so that the composite filter 900 is the raw water It is prevented from being damaged by (W1), and the raw water (W1) is prevented from being under-supplied to the composite filter 900, so that the flow of the raw water (W1) is lowered inside the composite filter 900 Since this is prevented, operational stability of the water purifier is ensured. In addition, the purified water discharge unit 1220 controls the discharge of the purified water C, thereby extracting purified water to meet the user's request, thereby improving user satisfaction.

And, as shown in FIG. 6 , in the water purifier 1200 according to an embodiment of the present invention, the composite filter 900 is the composite filter of the above-described embodiment. However, the composite filter 900 is not limited to the aforementioned composite filter, and a structure in which raw water intake, purified water outlet, and wash water discharge are independently performed may also be applied.

In addition, as shown in FIG. 6 , in the water purifier 1200 according to an embodiment of the present invention, the washing module 1230 uses the raw water of the raw water supply unit 1210 to clean the washing water W2. and a washing water control valve 1231 for controlling supply. The washing water control valve 1231 controls the supply of the raw water W1 to the composite filter 900 or the supply of the raw water W1 to the washing module 1230 . That is, the washing water control valve 1231 controls the raw water W1 to be supplied to the complex filter 900 and also controls the supply of the raw water W1 to the washing module 1230 to be stopped. The washing water control valve 1231 controls the supply of the raw water W1 to the complex filter 900 so that it is stopped, and also controls the raw water W1 to be supplied to the washing module 1230 . In addition, the cleaning module 1230 performs a function of sterilizing the raw water W1 supplied from the raw water supply unit 1210 . That is, the cleaning module 1230 may be a sterilization device that sterilizes the raw water W1. For example, the cleaning module 1230 may sterilize the raw water W1 or add a sterilizing agent using ultrasonic waves or plasma, and also sterilize the raw water W1 to clean the composite filter 900. Various methods can be applied for this. The washing water W2 of the washing module 1230 is moved to the composite filter 900 to wash the composite filter 900 and then discharged to the outside through the washing water discharge valve 1250 .

In addition, referring to FIG. 6 , a process of extracting purified water and a process of cleaning the complex filter 900 will be described. First, for purified water extraction, the raw water supply unit 1210 opens a flow path of the raw water W1 so that the raw water W1 is supplied to the composite filter 900 . At this time, the washing water control valve 1231 opens the flow path of the raw water W1 to control the raw water W1 to be moved to the complex filter 900, and the raw water W1 is passed through the washing module 1230. ) is closed. Also, as the raw water W1 passes through the composite filter 900, the composite filter 900 generates the purified water C. Then, the purified water C is extracted to the outside through the purified water discharge unit 1220 . At this time, the washing water discharge valve 1250 closes the flow path of the washing water W2 to secure the stability of the purified water extraction operation.

Next, in order to clean the complex filter 900 , the raw water supply unit 1210 opens a flow path of the raw water W1 so that the raw water W1 is supplied to the washing module 1230 . At this time, the washing water control valve 1231 opens the flow path of the washing water W2 to control the movement of the raw water W1 to the washing module 1230, and the raw water W1 passes through the composite filter 900. ) is closed. And, the washing module 1230 supplies the washing water W2 to the composite filter 900 . As the washing water W2 passes through the composite filter 900, the composite filter 900 is washed by the washing water W2. And, the washing water W2 is discharged to the outside through the washing water discharge valve 1250. At this time, the purified water discharge unit 1220 closes the flow path of the purified water (C), so that operation stability for washing the composite filter 900 is secured.

7 is a schematic configuration diagram of a water purifier according to another embodiment of the present invention.

As shown in FIG. 7 , the water purifier 1300 according to another embodiment of the present invention includes a raw water supply unit 1210, a composite filter 900, a purified water discharge unit 1220, a purified water storage tank 1240, and a washing module ( 1230), and descriptions of components identical or similar to those of the above-described embodiment are replaced with the above-described descriptions, and the purified water storage tank 1240 and the washing module 1230 will be focused on. The purified water storage tank 1240 is connected to the purified water discharge unit 1220 . The purified water discharge unit 1220 includes a first control valve 1221 that controls the purified water C filtered by the complex filter 900 to be supplied to the purified water storage tank 1240 . Also, the purified water C is extracted to the outside by the control of the purified water discharge unit 1220 or moved to the purified water storage tank 1240 by the control of the first control valve 1221 .

And, as shown in FIG. 7 , in the water purifier 1300 according to another embodiment of the present invention, the washing module 1230 uses the purified water supplied from the purified water storage tank 1240 to wash the washing water W2 ) and a washing water control valve 1233 for controlling the supply of When the washing water control valve 1233 opens the passage through which the purified water C is moved, the purified water C is moved to the washing module 1230 and used as the washing water W2. At this time, a second control valve 1232 is provided in the passage through which the raw water W1 is moved. The washing water W2 passing through the washing module 1230 is moved to the second control valve 1232 disposed in the passage through which the raw water W1 is moved. The second control valve 1232 controls the washing water W2 to be supplied to the composite filter 900 while stopping the supply of the raw water W1, and conversely, the raw water W1 is supplied to the composite filter 900. ), the supply of the washing water W2 may be stopped.

And, with reference to FIG. 7 , a process of extracting purified water and a process of cleaning the complex filter 900 will be described. First, for purified water extraction, the raw water supply unit 1210 opens a flow path of the raw water W1 so that the raw water W1 is supplied to the composite filter 900 . At this time, the second control valve 1232 opens the flow path of the raw water W1 to control the raw water W1 to move to the composite filter 900, and the washing water W2 to the composite filter ( 900) is closed. Also, as the raw water W1 passes through the composite filter 900, the composite filter 900 generates the purified water C. And, the purified water C is extracted to the outside or moved to the purified water storage tank 1240 according to the control of the purified water discharge unit 1220 . At this time, the washing water control valve 1233 and the washing water discharge valve 1250 close the flow path of the washing water W2 to secure the stability of the purified water extraction operation.

Next, in order to wash the complex filter 900, the washing water control valve 1233 controls the purified water C to be moved to the washing module 1230 by opening the passage of the washing water W2. And, the washing module 1230 supplies the washing water W2 to the second control valve 1232 . At this time, the second control valve 1232 closes the flow path of the raw water W1 and opens the flow path through which the washing water W2 moves to the composite filter 900 . As the washing water W2 passes through the composite filter 900, the composite filter 900 is washed by the washing water W2. And, the washing water W2 is discharged to the outside through the washing water discharge valve 1250. At this time, the purified water discharge unit 1220 closes the flow path of the purified water (C), so that operation stability for washing the composite filter 900 is secured.

8 is a schematic configuration diagram of a water purifier according to another embodiment of the present invention.

As shown in FIG. 8 , a water purifier 1400 according to another embodiment of the present invention includes a raw water supply unit 1210, a composite filter 900, a purified water discharge unit 1220, a purified water storage tank 1241, and a washing module. 1230, and descriptions of components identical or similar to those of the foregoing embodiment are replaced with the foregoing descriptions, and the purified water storage tank 1241 and the washing module 1230 will be focused on. The purified water storage tank 1241 is disposed between the composite filter 900 and the purified water discharge unit 1220 and is connected to the purified water discharge unit 1220 . The purified water C filtered by the complex filter 900 is supplied to the purified water storage tank 1241 . Then, the purified water (C) is extracted to the outside by the control of the purified water discharge unit 1220 .

And, as shown in FIG. 8 , in the water purifier 1400 according to another embodiment of the present invention, the washing module 1230 uses the purified water supplied from the purified water storage tank 1241 to wash the washing water W2 ) and a washing water control valve 1234 for controlling the supply of When the washing water control valve 1234 opens the passage through which the purified water C is moved, the purified water C is moved to the washing module 1230 and used as the washing water W2. At this time, a control valve (801a) is provided in the passage through which the raw water (W1) is moved. The washing water W2 passing through the washing module 1230 is moved to the control valve 1215 disposed in the passage through which the raw water W1 is moved. The control valve 1215 controls the washing water W2 to be supplied to the composite filter 900 while stopping the supply of the raw water W1, and conversely, the raw water W1 is supplied to the composite filter 900. The supply of the washing water W2 may be stopped while being controlled to be supplied.

And, with reference to FIG. 8 , a process of extracting purified water and a process of cleaning the complex filter 900 will be described. First, for purified water extraction, the raw water supply unit 1210 opens a flow path of the raw water W1 so that the raw water W1 is supplied to the composite filter 900 . At this time, the control valve 1215 opens the flow path of the raw water W1 to control the raw water W1 to be moved to the composite filter 900, and the washing water W2 passes through the composite filter 900. The flow path moved to is closed. Also, as the raw water W1 passes through the composite filter 900, the composite filter 900 generates the purified water C. After the purified water C is stored in the purified water storage tank 1241, it is extracted to the outside under the control of the purified water discharge unit 1220. At this time, the washing water control valve 1234 and the washing water discharge valve 1250 close the flow path of the washing water W2 to secure the stability of the purified water extraction operation.

Next, to clean the complex filter 900, the purified water discharge unit 1220 closes the purified water C flow path so that the purified water C is not discharged to the outside. At this time, the washing water control valve 1234 opens the passage of the washing water W2 and controls the purified water C to be moved to the washing module 1230 . And, the washing module 1230 supplies the washing water W2 to the control valve 1215 . At this time, the control valve 1215 closes the flow path of the raw water W1 and opens the flow path through which the washing water W2 moves to the composite filter 900 . As the washing water W2 passes through the composite filter 900, the composite filter 900 is washed by the washing water W2. And, the washing water W2 is discharged to the outside through the washing water discharge valve 1250. As the purified water C is used as the washing water W2 in this way, the washing efficiency of the composite filter 900 is improved.

Although the embodiments of the present invention have been described, the spirit of the present invention is not limited by the embodiments presented herein, and those skilled in the art who understand the spirit of the present invention may add or change components within the scope of the same spirit. Other embodiments can be easily proposed by adding, deleting, adding, etc., but this will also be said to be within the scope of the present invention.

900: composite filter 910: housing part
911 Head member 912 Case member
920: raw water inlet port 930: purified water outlet port
940: washing water discharge port 911a: first compartment wall
911b: second partition wall 1000: filtering unit
1010: first filter member 1020: second filter member
1030: first body member 1040: first upper cap member
1050: second upper cap member 1060: first lower cap member
1070: second body member 1080: third upper cap member

Claims (21)

a housing having a raw water intake port through which raw water is received, a purified water outlet port through which filtered purified water is discharged, and a washing water discharge port through which washing water is discharged; and
Filtering comprising a first filter member for filtering the raw water to generate first purified water, and a second filter member for filtering the first purified water to generate second purified water and stacked under the first filter member. wealth; Including,
the housing part,
a head member having a first partition wall for preventing mixing of the raw water and the washing water and a second partition wall for preventing mixing of the purified water and the washing water; and
a case member extending from the head member and having the filtration unit disposed therein; including,
The filter unit,
a first body member surrounding the first filter member;
a first upper cap member on which the first filter member is disposed below;
a second upper cap member in which the first upper cap member is disposed on a lower side and the first body member is disposed on a lower side;
a first lower cap member on which the first filter member is disposed above and penetrating the second filter member;
a second body member surrounding the second filter member; and
a third upper cap member on which the second filter member is disposed below; Complex filter characterized in that it comprises a.
According to claim 1,
The filtering unit further comprises a second lower cap member coupled to a lower side of the second filter member.
According to claim 2,
The composite filter, characterized in that the second lower cap member includes a second lower cap guide extending upward to be coupled with the second filter member.
According to claim 1,
The first upper cap member includes a first upward guide extending upward to allow the raw water to flow into the second filter member.
According to claim 1,
The composite filter of claim 1, wherein the second upper cap member includes a second upward guide extending upward to allow the washing water to be discharged from the first filter member.
According to claim 1,
The composite filter, characterized in that the first lower cap member includes a first lower cap guide extending downward to pass through the second filter member.
According to claim 1,
The composite filter, wherein the third upper cap member includes an upper cap guide extending downward to be coupled with the second filter member.
According to claim 1,
After washing the first filter member, the washing water is moved to the washing water discharge port via a first discharge passage formed between the first filter member and the first body member.
According to claim 8,
A plurality of discharge holes communicating with the first discharge passage are formed on the side surface of the first filter member,
The composite filter, characterized in that the washing water that washed the first filter member is moved to the first discharge passage through the plurality of discharge holes.
According to claim 9,
A second discharge passage communicating with the first discharge passage is formed between the first upper cap member and the second upper cap member,
The second discharge passage is a composite filter, characterized in that in communication with the washing water discharge port.
According to claim 10,
A composite filter, characterized in that a first O-ring is formed between the first upper cap member and the first filter member to prevent the washing water from re-introducing into the first filter member.
According to claim 10,
A composite filter, characterized in that a second O-ring is formed between the second upper cap member and the first body member to prevent the washing water from being mixed with the second purified water.
According to claim 10,
A composite filter, characterized in that a third O-ring is formed between the first filter member and the first lower cap member to prevent the washing water from flowing into the second filter member.
According to claim 10,
A composite filter, characterized in that a fourth O-ring is formed between the first body member and the first lower cap member to prevent mixing of the washing water with the second purified water.
According to claim 10,
A composite filter, characterized in that a fifth O-ring is formed between the second body member and the third upper cap member to prevent the second purified water from re-introducing into the second filter member.
According to claim 1,
A composite filter, characterized in that a first spacer is formed between the first upper cap member and the first body member to be spaced apart from each other at a predetermined interval.
According to claim 1,
A composite filter, characterized in that a second spacer is formed between the second upper cap member and the case member to be spaced apart from each other at a predetermined interval.
Raw water supply unit for controlling the supply of raw water;
A complex filter for receiving and filtering raw water supplied from the raw water supply unit;
a purified water discharge unit controlling the discharge of purified water filtered by the complex filter; and
A washing module provided between the raw water supply unit and the composite filter and controlling the supply of washing water to the composite filter,
The composite filter,
Filtering comprising a first filter member for filtering the raw water to generate first purified water, and a second filter member for filtering the first purified water to generate second purified water and stacked under the first filter member. wealth; Including,
The filter unit,
a first body member surrounding the first filter;
a first upper cap member on which the first filter member is disposed below;
a second upper cap member in which the first upper cap member is disposed on a lower side and the first body member is disposed on a lower side;
a first lower cap member on which the first filter member is disposed above and penetrating the second filter member;
a second body member surrounding the second filter member; and
a third upper cap member on which the second filter member is disposed below; including,
The water purifier, characterized in that the raw water and the washing water are selectively supplied to the composite filter.
According to claim 18,
The composite filter,
a housing having a raw water intake port through which raw water is received, a purified water outlet port through which filtered purified water is discharged, and a washing water discharge port through which washing water is discharged; Including more,
the housing part,
a head member having a first partition wall for preventing mixing of the raw water and the washing water and a second partition wall for preventing mixing of the purified water and the washing water; and
a case member extending from the head member and having the filtration unit disposed therein; A water purifier comprising a.
According to claim 18,
The washing module is a water purifier, characterized in that for washing the complex filter using the raw water supplied from the raw water supply unit.
According to claim 18,
Further comprising a purified water storage tank connected to the purified water outlet and supplied with purified water filtered by the complex filter;
The washing module is a water purifier, characterized in that for washing the composite filter using the purified water supplied from the purified water storage tank.

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