KR20210046980A - Complex filter assembly and water purifier having the same - Google Patents

Abstract

A complex filter assembly comprises: a filter housing having a first inlet, a first outlet, a second inlet, and a second outlet; a first filter unit accommodated in the filter housing and filtering water introduced through the first inlet; a second filter unit accommodated in the filter housing to be positioned in a vertical direction with respect to the first filter unit and filtering water introduced through the second inlet; and a flow path separating member dividing a flow path of water flowing through the first filter unit and a flow path of water flowing through the second filter unit. The purified water filtered by the first filter unit is discharged through the first outlet, the purified water filtered by the second filter unit is discharged through the second outlet, and the first inlet, the first outlet, the second inlet, and the second outlet are formed to face the same direction in the filter housing. Therefore, the complex filter assembly may have a plurality of inlets and a plurality of outlets.

Description

Composite filter assembly and water purifier having the same {COMPLEX FILTER ASSEMBLY AND WATER PURIFIER HAVING THE SAME}

The present invention relates to a composite filter assembly in which a plurality of filters are integrated, and a water purifier having the same, and more particularly, to a composite filter assembly having a plurality of inlets and a plurality of outlets, and a water purifier having the same.

A water purifier is a device that supplies drinking water to a user by filtering the inflowed water and then discharging it to the outside.

These water purifiers use a combination of three or more individual filters for filtration of incoming treated water (for example, raw water), so that the product system is complex, and the volume occupied by the filter on the product increases, increasing the overall size of the product. There was a problem.

In order to solve this problem, a technique for using two filters in combination has been proposed. For example, a composite filter assembly in which a sediment filter and a pre-carbon filter are integrated as a pretreatment filter, a composite filter assembly in which a pre-carbon filter and a hollow fiber membrane filter are integrated, and the like have also been used.

However, the conventional composite filter assembly has one inlet port and one outlet port, and has a form in which a plurality of filters are arranged in series in a flow path. That is, the conventional composite filter assembly is configured to have a structure in which the water introduced through the inlet is filtered through the first filter, and then the water filtered through the first filter is introduced into the second filter, filtered, and then discharged through the outlet.

The conventional composite filter assembly has a problem in that the replacement cycle of the filters accommodated therein is different, and thus the composite filter assembly must be replaced as a whole, so that the filter with the remaining use cycle must be replaced if it corresponds to the replacement cycle of some filters.

In addition, the conventional composite filter assembly has a problem in that a plurality of filters are arranged in series, so that other filters or components cannot be installed between the filters.

KR 10-2003-0096867 A KR 10-2008-0101567 A KR 10-2009-0014436 A

The present invention has been conceived to solve at least some of the problems of the prior art as described above, and has a plurality of filter units and has a plurality of inlet and a plurality of outlets for providing a composite filter assembly and a water purifier having the same do.

In addition, as an aspect of the present invention, it is an object of the present invention to provide a composite filter assembly capable of easily mounting or separating the composite filter assembly in a flow path of a water purifier, and a water purifier having the same.

In addition, as an aspect, an object of the present invention is to provide a composite filter assembly having a high degree of freedom in a flow path and a water purifier having the same.

In addition, as an aspect, an object of the present invention is to provide a composite filter assembly capable of diversifying a composite filter and a water purifier having the same.

In addition, as an aspect, an object of the present invention is to provide a complex filter assembly capable of complexing filters having similar filter exchange cycles, and a water purifier having the same.

In addition, as an aspect, an object of the present invention is to provide a composite filter assembly capable of reducing the total number of filters provided in a water purifier and miniaturizing a product, and a water purifier having the same.

In addition, as an aspect, an object of the present invention is to provide a composite filter assembly capable of increasing management efficiency by reducing the number of filters to be replaced, and a water purifier having the same.

As an aspect for achieving the above object, the present invention includes a filter housing having a first inlet, a first outlet, a second inlet, and a second outlet; A first filter unit accommodated in the filter housing and filtering water introduced through the first inlet; A second filter unit accommodated in the filter housing so as to be positioned in a vertical direction with respect to the first filter unit, and filters water introduced through the second inlet; And a flow path separating member partitioning a flow path of water flowing through the first filter part and a flow path of water flowing through the second filter part, wherein the purified water filtered by the first filter part is discharged through the first outlet, and 2 The purified water filtered by the filter unit is discharged through the second outlet, and the first inlet, the first outlet, the second inlet and the second outlet have a composite filter assembly formed to face the same direction in the filter housing. to provide.

In this case, the second filter unit is accommodated in a lower portion of the filter housing, the first filter unit is accommodated in an upper portion of the filter housing so as to be positioned above the second filter unit, and the flow path separating member includes the first filter unit and It may be disposed between the second filter unit.

In addition, the first inlet, the first outlet, the second inlet and the second outlet may be formed in the filter housing to face a downward direction of the filter housing.

In addition, a connection passage through which water flows into the first filter portion or water flows out from the first filter portion is formed between the first filter portion and the second filter portion, and the passage separating member comprises the second filter portion. The upper end can be separated from the connection passage.

In this case, the flow path separating member may be configured as an upper cap supporting the upper end of the second filter part.

In addition, a region in which the connection passage is formed may have a structure that does not overlap a region through which water flows through the second filter unit based on the vertical direction of the filter housing.

Alternatively, based on the vertical direction of the filter housing, the filter housing may include a flow path extension part through which water flows into the first filter part at a portion corresponding to a region through which water flows through the second filter part. In this case, the flow path extension part includes a first extension part forming a first extension flow path through which water introduced through the first inlet port flows into the first filter part, and the water filtered by the first filter part flows out to the first. And a second extension portion forming a second extension passage that flows out to the hole, and the first extension portion and the second extension portion may be integrally formed with the filter housing.

In addition, the first inlet, the first outlet, the second inlet and the second outlet may all be formed on the lower side of the filter housing. In addition, the first inlet, the first outlet, the second inlet and the second outlet may have ends formed on the same plane.

Meanwhile, at least one of the first filter unit and the second filter unit may be configured as a composite filter in which a plurality of filter elements are arranged in series in a flow path. At this time, one of the first filter unit and the second filter unit may be configured as a pre-processing filter, and the other may be configured as a post-processing filter.

In addition, the first filter unit has a first inflow channel formed radially outward, a first outflow channel is formed in the center, and the second filter unit has a second inflow channel formed radially outward, and a second inflow channel is formed in the center. Outflow channels can be formed.

In addition, the filter housing is integrally formed by a housing body and a housing cap incorporated therein, and the second filter unit, the flow path separation member, and the first filter unit are integrally formed in the inner space of the filter housing from the lower side to the upper side. It can be stacked sequentially.

In another aspect, the present invention, the composite filter assembly described above; And a main filter that filters particles finer than the filter material provided in the composite filter assembly, wherein the water to be treated is any one of a first filter part and a second filter part of the composite filter assembly, the main filter, and the A water purifier provided to a user is provided through a flow path passing through the other of the first filter unit and the second filter unit.

In addition, the water purifier according to an aspect of the present invention further includes a composite filter mounting unit having connection ports corresponding to the first inlet, the first outlet, the second inlet and the second outlet, respectively, and the composite filter The first inlet, the first outlet, the second inlet, and the second outlet of the assembly may be fitted into the connection port, so that a plurality of flow paths can be connected at once.

In addition, the purified water discharged through the first outlet of the composite filter assembly is configured to flow into the second inlet through the main filter, or the purified water discharged through the second outlet of the composite filter assembly passes through the main filter. It may be configured to flow into the first inlet.

In addition, a branch passage for providing purified water supplied from the composite filter assembly to the main filter to a user without passing through the main filter may be provided in a passage in front of the main filter.

In addition, the water purifier according to an aspect of the present invention further includes a pressurizing unit disposed in a flow path of a front end of the main filter to pressurize water supplied to the main filter, wherein the main filter includes a reverse osmosis membrane filter. It can be configured.

According to an embodiment of the present invention having such a configuration, it is possible to obtain an effect that a plurality of inlets and a plurality of outlets can be provided in complexing a plurality of filter units.

In addition, according to an embodiment of the present invention, it is possible to obtain an effect that the composite filter assembly can be easily mounted in the flow path of the water purifier or separated from the flow path.

In addition, according to an embodiment of the present invention, there is an effect that the degree of freedom of the flow path configuration is high.

In addition, according to an embodiment of the present invention, it is possible to obtain an effect of diversifying filters that can be combined.

In addition, according to an embodiment of the present invention, there is an effect that filters having a similar filter exchange period can be combined.

In addition, according to an embodiment of the present invention, it is possible to obtain an effect of reducing the total number of filters provided in the water purifier and achieving miniaturization of the product.

In addition, according to an embodiment of the present invention, there is an effect that the number of filters to be replaced can be reduced, thereby increasing the effectiveness of management.

1 is a perspective view of a composite filter assembly according to a first embodiment of the present invention, wherein (a) is a perspective view in an upward direction, and (b) is a perspective view in a downward direction.
FIG. 2 is a cross-sectional view taken along line II′ of FIG. 1(a) of the composite filter assembly shown in FIG. 1.
3 is a cross-sectional view showing a portion of the vertical direction omitted in order to enlarge the cross-sectional view shown in FIG. 2;
Figure 4 is a schematic view showing the composite filter assembly shown in Figure 1 and the composite filter mounting portion of the water purifier.
Figure 5 is a perspective view of the composite filter assembly according to the second embodiment of the present invention, (a) is a perspective view in the upper direction, (b) is a perspective view in the lower direction.
6 is a cross-sectional view taken along line II-II' of FIG. 5(a) of the composite filter assembly shown in FIG. 5;
7 is a cross-sectional view showing a portion of the vertical direction omitted in order to enlarge the cross-sectional view of FIG. 6.
8 is a schematic view showing the composite filter assembly shown in Figure 5 and the composite filter mounting portion of the water purifier.
9 is a water piping diagram of an embodiment of a water purifier including the composite filter assembly shown in FIG. 1 or 5;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, embodiments of the present invention are provided in order to more completely explain the present invention to those with average knowledge in the art. In the drawings, the shapes and sizes of elements may be exaggerated for clearer explanation.

In addition, in the present specification, expressions in the singular include a plurality of expressions unless the context clearly indicates otherwise, and the same reference numerals throughout the specification refer to the same or corresponding elements.

In addition, in the present specification, the terms'first' and'second' are merely used to distinguish and refer to two similar elements, meaning that'first' and'second' are arranged in order. no.

In particular, in the present specification including the claims, expressions such as upper, upper, lower, lower, side, front, and rear are expressed based on the directions shown in the drawings, and may be expressed differently if the direction of the corresponding object is changed. Make it clear in advance.

Hereinafter, an embodiment of a composite filter assembly 100 according to the present invention and an embodiment of a water purifier 10 including the composite filter assembly 100 will be described with reference to the drawings.

[First embodiment of the composite filter assembly 100]

First, a composite filter assembly 100 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

1 is a perspective view of a composite filter assembly 100 according to a first embodiment of the present invention, (a) is a perspective view in an upward direction, (b) is a perspective view in a downward direction, and FIG. 2 is A cross-sectional view of the composite filter assembly 100 taken along line II′ of FIG. 1(a), FIG. 3 is a cross-sectional view showing a part of the vertical direction omitted in order to enlarge the cross-sectional view shown in FIG. 2, and FIG. A schematic diagram showing the composite filter assembly 200 and the composite filter mounting portion F of the water purifier 10 shown in FIG. 1.

1 to 4, the composite filter assembly 100 according to an embodiment of the present invention includes a filter housing 101, a first filter unit 110, a second filter unit 150, and a flow path separation. It may be configured to include the member 130.

First, the filter housing 101 may be integrally formed by a housing body 102 and a housing cap 103 incorporated therein.

And, as shown in Figures 1 to 3, the housing body 102 and the housing cap 103 are joined at the junction 104. Such a junction part 104, for example, forms a fusion rib on one side of the housing body 102 and the housing cap 103, and forms a fusion groove for accommodating the fusion rib on the other side, and then, the housing body ( 102) and the housing cap 103 may be formed through a process in which the fusion rib is fused to the fusion groove as the outer circumferential surface of the fusion rib is rubbed against the inner circumferential surface of the fusion groove. However, the bonding method of the housing body 102 and the housing cap 103 is not limited to the above-described fusion bonding, and various modifications can be made as long as the watertightness between the housing body 102 and the housing cap 103 can be implemented.

In FIGS. 1 to 3, the housing body 102 is shown to be positioned at the lower side and the housing cap 103 is positioned at the upper side, but the position can be changed. In addition, in FIGS. 1 to 3, it is shown that the fusion rib is formed in the housing body 102 and the fusion groove is formed in the housing cap 103, but the positions of the fusion rib and the fusion groove can be changed. In addition, in FIGS. 1 to 3, the housing cap 103 is shown to be coupled to the upper side of the housing body 102, but the filter housing 101 is attached to the filter housing 101 by the coupling of the housing body 102 and the housing cap 103. If an internal space can be formed, the filter housing 101 may have a structure in which the housing cap 103 is formed respectively on the upper and lower sides of the housing body 102, and the housing body 102 is manufactured in two or more. After being integrated, it is also possible to be integrated.

In addition, in the inner space of the filter housing 101 configured as an integral type, the second filter unit 150, the flow path separation member 130, and the first filter unit 110 are located in the inner space of the filter housing 101 from the lower side to the upper side. May be sequentially stacked, which will be described later.

Meanwhile, the filter housing 101 includes a first inlet P1 through which water flows into the first filter unit 110, a first outlet P2 through which water filtered by the first filter unit 110 flows out, A second inlet P3 through which water flows into the second filter unit 150 and a second outlet P4 through which water filtered by the second filter unit 150 flows out may be formed.

It is easy to connect the inner flow path of the water purifier 10 to the first inlet (P1), the first outlet (P2), the second inlet (P3) and the second outlet (P4), respectively, or to separate them from the inner flow path of the water purifier 10 To do this, the first inlet (P1), the first outlet (P2), the second inlet (P3) and the second outlet (P4) may be formed to face the same direction in the filter housing 101. For example, as shown in FIGS. 1 to 3, the first inlet P1, the first outlet P2, the second inlet P3, and the second outlet P4 are at the lower side of the filter housing 101. It can be formed to face the direction. Through this, as shown in FIG. 4, in a state in which the filter housing 101 is disposed so that the lower direction of the filter housing 101 faces the composite filter mounting part F inside the water purifier 10, the filter housing 101 is placed in the composite filter mounting part F. ) Can be easily connected.

In addition, the first inlet (P1), the first outlet (P2), the second inlet (P3) and the second outlet (P4) are one side of the filter housing 101, that is, the outlet installation surface of the filter housing 101 ( All may be formed on 109, and may be arranged in a line on the outlet installation surface 109. For example, the outlet installation surface 109 on which the first inlet P1, the first outlet P2, the second inlet P3, and the second outlet P4 are formed is shown in FIGS. As shown, it may be configured as the lower side of the filter housing 101, but unlike this, it may be configured as the upper side of the filter housing 101. In addition, in FIGS. 1 to 3, the first inlet P1, the first outlet P2, the second inlet P3, and the second outlet P4 are shown to be formed in the housing body 102, but the filter When the housing body 102 is located on the upper side of the housing 101 and the housing cap 103 is located on the lower side, it may be formed on the housing cap 103.

In this way, through at least some of the configurations related to the arrangement positions of the first inlet (P1), the first outlet (P2), the second inlet (P3) and the second outlet (P4), the composite filter assembly 200 and the water purifier ( The internal flow path of 10) can be easily connected or the composite filter assembly 200 can be easily separated from the internal flow path of the water purifier 10. For example, as shown in FIG. 4, the composite filter mounting portion F has a first inlet port P1, a first outlet port P2, a second inlet port P3, and a second outlet port P4, respectively. 1 Inlet-side connection port (Q1), a first outlet-side connection port (Q2), a second inlet-side connection port (Q3), and a second outlet-side connection port (Q4). In this case, the first inlet (P1), the first outlet (P2), the second inlet (P3) and the second outlet (P4) of the composite filter assembly 100 correspond to the connection ports (Q1, Q2, Q3, Q4). ) By being inserted into each of the plurality of flow paths are connected at once, it is possible to obtain an effect that the composite filter assembly 100 can be easily mounted in the flow path of the water purifier 10 or separated from the flow path.

Further, the first inlet P1, the first outlet P2, the second inlet P3, and the second outlet P4 may have ends formed on the same plane. That is, the ends of the first inlet P1, the first outlet P2, the second inlet P3, and the second outlet P4 from the outlet installation surface 109 may have the same height. . In this case, as shown in FIG. 4, the first inlet (P1), the first outlet (P2), the second inlet (P3) and the second outlet (P4) are formed corresponding to the composite filter mounting portion (F), respectively. It is possible to more easily perform the work of coupling to the connection ports (Q1, Q2, Q3, Q4) or disconnecting from the connection ports (Q1, Q2, Q3, Q4). However, some of the first inlet (P1), the first outlet (P2), the second inlet (P3) and the second outlet (P4) have a height protruding from the outlet mounting surface 109, that is, the height of the end. It may be set differently, in this case, by adjusting the height of the connection ports (Q1, Q2, Q3, Q4) formed corresponding to the composite filter mounting portion (F), it is possible to achieve the ease of joining/separating operation.

In addition, the first filter unit 110 is accommodated in the filter housing 101 and filters water introduced through the first inlet P1. The purified water filtered by the first filter unit 110 may be discharged through the first outlet P2. At this time, the first filter unit 110 includes a first filter material 111 for filtering water, and a first upper cap that is coupled to an upper portion of the first filter material 111 to support the first filter material 111 ( 113) and a first lower cap 115 coupled to the lower portion of the first filter material 111 to support the first filter material 111.

In addition, the second filter unit 150 is accommodated so as to be positioned in the vertical direction with respect to the first filter unit 110 inside the filter housing 101, and filters the water introduced through the second inlet P3. . The purified water filtered by the second filter unit 150 may be discharged through the second outlet P4. In this case, the second filter unit 150 includes a second filter material 151 for filtering water, and a second lower cap that is coupled to the lower portion of the second filter material 151 to support the second filter material 151 ( 155).

In FIGS. 1 to 3, two filter units, that is, the first filter unit 110 and the second filter unit 150 are shown to be accommodated in the filter housing 101, but the interior of the filter housing 101 The number of filter units provided in is not limited to two, and three or more filter units may be accommodated. In this way, when three or more filter units are accommodated in the filter housing 101, a number of inlets and outlets corresponding to the number of filter units may be formed in the filter housing 101.

And, in the present specification, the terms "first" and "second" are used to refer to the point that the first filter unit 110 and the second filter unit 150 are different components, and thus the order of water flow That is, in the arrangement on the flow path, the first filter unit 110 may be located upstream or downstream of the second filter unit 150. However, in the water piping diagram of FIG. 9 to be described later for convenience of explanation, it is illustrated that the first filter unit 110 is positioned upstream of the second filter unit 150 in a flow path arrangement, and is shown in FIGS. 3 and 7 The flow of water is based on the water piping diagram of FIG. 9.

In addition, the first filter material 111 constituting the first filter unit 110 and the second filter material 151 constituting the second filter unit 150 are each a single filter element, for example, a sediment. Filters, pre-carbon filters, post-carbon filters, antibacterial filters, various functional filters, reverse osmosis membrane filters (RO membrane filters), hollow fiber membrane filters, nano-filters (nano trap), etc. may be selected from known filter materials.

At this time, since the first filter material 111 constituting the first filter unit 110 and the second filter material 151 constituting the second filter unit 150 may be composed of filters having a similar filter exchange period, The use efficiency of the composite filter assembly 100 can be maximized.

Meanwhile, the first filter material 111 constituting the first filter unit 110 and the second filter material 151 constituting the second filter unit 150 may each include only one of the above-described filter elements. , At least some of the first filter material 111 constituting the first filter unit 110 and the second filter material 151 constituting the second filter unit 150 are formed by combining two or more filter elements. Can be. In this way, when the first filter unit 110 and/or the second filter unit 150 is composed of a composite filter in which two or more filter elements are combined in combination, the first filter unit 110 and/or the second filter unit Two or more filter elements included in combination 150 may be arranged in series on a flow path.

For example, one of the first filter unit 110 and the second filter unit 150 may be configured as a pre-processing filter, and the other may be configured as a post-processing filter, and the pre-processing filter is a sediment filter and a pre-carbon filter. The filter may be composed of a composite filter, and the post-processing filter may be composed of a single filter including a post carbon filter or a composite filter. When the first filter unit 110 is composed of a pretreatment filter (composite filter) including a sediment filter and a pre-carbon filter, water flowing into the first filter unit 110 through the first inlet P1 is cedi. It is filtered while passing through the ment filter, and then additionally filtered through a pre-carbon filter, and then may be discharged through the first outlet P2. In order to form such a serial flow path, two or more filter elements may be stacked in a vertical direction when the water flow direction is vertical, and may be disposed in a radial direction when the water flow direction is a radial direction.

Meanwhile, as shown in FIGS. 2 and 3, the first filter unit 110 and the second filter unit 150 may be provided on the upper side and the lower side, respectively, based on the longitudinal direction of the filter housing 101. For example, as shown in FIGS. 2 and 3, the first filter unit 110 is disposed in the first area A1 corresponding to the upper side of the filter housing 101, and the lower side of the filter housing 101 The second filter unit 150 may be disposed in the second area A2 corresponding to. In this case, a flow path of water flowing through the first filter unit 110 and a flow path of water flowing through the second filter unit 150 may be separated from each other by the flow path separating member 130. That is, between the first filter unit 110 and the second filter unit 150, a connection channel LL3 through which water flows into the first filter unit 110 or water flows out from the first filter unit 110 is formed. The flow path separating member 130 separates the connection flow path LL3 in communication with the first filter unit 110 from the flow path of the second filter unit 150. However, the positions of the first filter unit 110 and the second filter unit 150 in the vertical direction may be changed.

In the following, for convenience of description, as shown in FIGS. 2 and 3, when the first filter unit 110 and the second filter unit 150 are disposed above and below the filter housing 101, respectively It will be described with an example.

2 and 3, the first filter unit 110 is disposed at a position where the distance from the second inlet P3 is greater than that of the second filter unit 150.

In this case, the flow path separating member 130 is disposed between the lower side of the first filter unit 110 and the upper side of the second filter unit 150. In addition, the flow path separating member 130 divides the flow paths LL1, LL2, and LL3 communicated with the first filter unit 110 and the flow paths LL4 and LL5 communicated with the second filter unit 150.

As shown in FIGS. 2 and 3, the first filter unit 110 may have a first inflow passage LL1 formed radially outward, and a first outflow passage LL2 formed in the center thereof. In this way, when the area into which water is introduced is formed wide, the contact area between the first filter material 111 of the first filter unit 110 and the incoming water increases, so that the first filter material 111 can be used as a whole. Therefore, the filter usage efficiency is increased. In addition, the water flowing into the first outlet passage LL2 after being filtered by the first filter material 111 passes through the outlet 116 of the first lower cap 115 to the lower end of the first lower cap 115 and the passage It may be discharged through a connection passage LL3 located between the upper ends of the separating member 130. At this time, the flow path separation member 130 is configured to separate the connection flow path LL3 from the upper end of the second filter unit 150.

Meanwhile, the flow path separating member 130 may be installed separately from the components of the first filter unit 110 or the components of the second filter unit 150, but to reduce the number of parts, the second filter unit 150 ) May be composed of an upper cap supporting the upper end of the second filter material 151. That is, the flow path separating member 130 separates the flow paths LL1, LL2, and LL3 in communication with the first filter unit 110 from the flow paths LL4 and LL5 in communication with the second filter unit 150 2 It may also perform a function of supporting the upper end of the filter material 151. In addition, the flow path separating member 130 may be configured to support the first filter unit 110 by contacting the lower end of the first lower cap 115 of the second filter unit 150.

2 and 3, the filter housing 101 corresponds to an area where water flows through the second filter unit 150 (A2 in FIG. 3) when the filter housing 101 is vertically positioned as a reference. A flow path extension part 105 through which water flows into the first filter part 101 or water flows out from the first filter part 101 may be provided in the filter housing 101.

In this case, the flow path extension part 105 includes a first extension part 105a forming a first extension flow path LLA through which water introduced through the first inlet P1 flows into the first filter part 110, The water filtered by the first filter unit 110 may be provided with a second extension portion 105b forming a second extension channel LLB through which the water filtered through the first outlet port P2 flows out.

Therefore, as shown in FIG. 3, the water introduced through the first inlet P1 is the first inflow of the first filter unit 110 through the first extension flow path LLA of the first extension part 105a. It flows into the flow path LL1. The water introduced into the first inflow passage LL1 is filtered while moving from the radially outer side of the first filter material 111 of the first filter unit 110 to the radially inner side (center), and then the first outflow passage LL2 Move to ). In addition, the purified water moved to the first outlet passage LL2 passes through the outlet 116 of the first lower cap 115, and the connection passage LL3 and the second extension portion formed on the upper side of the passage separating member 130 ( It may be discharged to the second outlet P2 through the second extension passage LLB of 105b).

The first extension portion 105a and the second extension portion 105b may be integrally formed in the filter housing 101 for convenience in manufacturing and assembly, reduction in the number of parts, and the like. That is, since the filter housing 101 is formed by the coupling of the housing body 102 and the housing cap 103, the first extension portion 105a and the second extension portion 105b are the lower body of the housing body 102. It can be formed integrally with the (102b) part. In this way, the method of integrally forming the first extension part 105a and the second extension part 105b on the housing body 102 may be by injection molding, but is not limited thereto and is performed through a known manufacturing method. Can be.

At this time, the first extension portion 105a and the second extension portion 105b extend in a linear direction toward the lower side from the upper body 102a of the housing body 102 so that they are integrally formed on the outer peripheral surface of the lower body 102b. It may be configured, and accordingly, the diameter of the upper body 102a may be formed larger than the lower body 102b. In addition, an inlet connector (P1), an outlet connector (P2), a second inlet port (P3), and a second outlet port (P4) are all formed on the lower side of the housing body 102, that is, the outlet port mounting surface 109. Has.

However, unlike the above, the first extension portion 105a and the second extension portion 105b may be separately manufactured and attached to the filter housing 101.

In addition, as shown in FIGS. 2 and 3, the second filter unit 150 may have a second inlet passage LL4 formed on the outer side in the radial direction, and a second outlet passage LL5 in the center thereof. . In this way, when the area into which water is introduced is formed wide, the contact area between the second filter material 151 of the second filter unit 150 and the incoming water increases, so that the second filter material 151 can be used as a whole. Therefore, the filter usage efficiency is increased.

In addition, water introduced through the second inlet P3 may flow into a radially outer portion of the second filter material 151 of the second filter unit 150 through the second inlet passage LL4. Thereafter, the filtered purified water moves from the outer side in the radial direction to the inner side (center) in the radial direction of the second filter material 151 and moves to the second outlet passage LL5, and then the outlet 156 of the second lower cap 155 It may be discharged through the second outlet (P4).

Meanwhile, in FIGS. 2 and 3, a first inflow passage LL1 is formed radially outside the first filter unit 110, a first outflow passage LL2 is formed in the center, and the second filter unit 150 ), the second inflow passage LL4 is formed on the outer side in the radial direction, and the second outlet passage LL5 is formed in the center, but the first inflow passage LL1 and the first outlet passage LL2 are described above. ), and the positions of the second inlet passage LL4 and the second outlet passage LL5 may be formed opposite to those of FIGS. 2 and 3.

In addition, the first inlet port P1 connected to the first inlet passage LL1, the first outlet port P2 connected to the first outlet passage LL2 and the connecting passage LL3, and the second inlet passage LL4 2 Location and flow chart of the inlet port P3 and the second outlet port P4 connected to the second outlet passage LL5. The first inlet passage LL1, the first outlet passage LL2, the second inlet passage LL4, and 2 It can be changed into various forms according to the arrangement structure of the outflow passage LL5.

[Second Embodiment of Composite Filter Assembly 100]

Next, a composite filter assembly 100 according to a second embodiment of the present invention will be described with reference to FIGS. 5 to 8.

Figure 5 is a perspective view of the composite filter assembly 100 according to the second embodiment of the present invention, (a) is a perspective view in the upper direction, (b) is a perspective view in the lower direction, and Figure 6 is shown in FIG. A cross-sectional view of the composite filter assembly 100 taken along line II-II' of FIG. 5(a), and FIG. 7 is a cross-sectional view of the composite filter assembly 100 by omitting a part of the vertical direction in order to enlarge the cross-sectional view shown in FIG. 8 is a schematic diagram showing the composite filter assembly 100 and the composite filter mounting portion F of the water purifier 10 shown in FIG. 5.

The composite filter assembly 100 according to the second embodiment shown in FIGS. 5 to 8 is provided to the filter housing 101 unlike the composite filter assembly 100 according to the first embodiment shown in FIGS. 1 to 4. There is a difference only in that the 1 extension part 105a and the second extension part 105b are not provided.

Accordingly, a detailed description of a configuration that is the same as or corresponding to the configuration of the first embodiment described with reference to FIGS. 1 to 4 will be omitted and replaced with the above description.

5 and 8, the filter housing 101 provided in the composite filter assembly 100 according to the second embodiment of the present invention includes a first extension part 105a and a second extension part 105b. Does not have. Therefore, based on the vertical (height) direction of the filter housing 101, a region in which the connection passage LL3 of the first filter unit 110 is formed, that is, the first filter unit 110 is disposed. The lower portion of the region A1 has a structure that does not overlap with the region through which water flows through the second filter unit 150. That is, an upper portion through which water flows through the first filter unit 110 (corresponding to area A1 in FIG. 7) and a lower portion through which water flows through the second filter unit 150 (corresponds to area A2 in FIG. 7) The filter housing 101 may have a structure that is separated based on the height direction and does not overlap with each other.

In addition, as shown in FIGS. 5 and 8, the composite filter assembly 100 according to the second embodiment of the present invention includes a first inlet P1 and a first outlet communicating with the first filter unit 110. P2), and the second inlet port P3 and the second outlet port P4 communicating with the second filter unit 150 face each other in the same direction, for example, the inside of the water purifier 10 as shown in FIG. It is formed to face the composite filter mounting portion (F). Accordingly, the composite filter assembly 200 and the internal flow path of the water purifier 10 can be easily connected or the composite filter assembly 200 can be easily separated from the internal flow path of the water purifier 10.

However, in the case of the embodiment shown in FIGS. 5 and 8, since the first extension portion 105a and the second extension portion 105b are not provided, the installation position of the first inlet P1 and the first outlet P2 (Height) and the installation position (height) of the second inlet (P3) and the second outlet (P4) are different from each other. That is, the second inlet P3 and the second outlet P4 are formed on the lower side of the filter housing 101, but the first inlet P1 and the first outlet P2 are under the filter housing 101. It is formed in a position spaced from the side.

On the other hand, as shown in Figure 8, the composite filter mounting portion (F) is a first inlet corresponding to each of the first inlet (P1), the first outlet (P2), the second inlet (P3) and the second outlet (P4). A side connection port Q1, a first outlet-side connection port Q2, a second inlet-side connection port Q3, and a second outlet-side connection port Q4 may be provided. In addition, the first inlet-side connection port (Q1) and the first outlet-side connection port (Q2) are connected to the first inlet (P1) and the first outlet (P2) spaced apart from the lower side of the filter housing (101). Extension pipes (C1, C2) may be connected.

Accordingly, the connection ports Q1, Q2, Q3, Q4 corresponding to the first inlet P1, the first outlet P2, the second inlet P3, and the second outlet P4 of the composite filter assembly 100 Since the plurality of flow paths are connected together by being fitted to each other, the operation of connecting the internal flow path of the composite filter assembly 100 and the internal flow path of the water purifier 10 can be easily performed.

Referring to FIG. 7, water (eg, raw water) introduced into the first inflow passage LL1 of the first filter unit 110 through the first inlet P1 is passed through the first filter material 111. After filtering, it moves to the first outflow passage LL2. In this case, the first filter unit 110 may have a first inflow passage LL1 formed on the outer side in the radial direction, and a first outlet passage LL2 in the center thereof. In addition, the water (for example, primary purified water) moved to the first outlet passage LL2 passes through the outlet 116 of the first lower cap 115, and the connection passage LL3 on the upper side of the passage separating member 130 ) Can be discharged to the first outlet (P2).

In addition, as shown in FIG. 7, water (eg, secondary purified water) introduced into the second inlet passage LL4 of the second filter unit 150 through the second inlet P3 is a second filter. After being filtered through the material 151, it is moved to the second outflow passage LL5. In this case, the second filter unit 150 may have a second inlet passage LL4 formed on the outer side in the radial direction, and a second outlet passage LL5 in the center thereof. Then, the water moved to the second outlet passage LL5 is discharged through the second outlet P4 through the outlet 156 of the second lower cap 155.

On the other hand, the positions of the first inlet passage LL1 and the first outlet passage LL2, and the positions of the second inlet passage LL4 and the second outlet passage LL5 are formed opposite to those of FIGS. 6 and 7. It is also possible. In addition, the positions and flow charts of the first inlet (P1), the first outlet (P2), the second inlet (P3), and the second outlet (P4) 2 It can be changed into various shapes according to the arrangement structure of the inlet passage LL4 and the second outlet passage LL5.

[Example of water purifier 10]

Next, an embodiment of a water purifier 10 including the composite filter assembly 100 described with reference to FIGS. 1 to 8 as an example will be described with reference to FIG. 9.

9 is a water piping diagram of an embodiment of a water purifier 10 to which the composite filter assembly 100 shown in FIG. 1 or 5 is applied.

As shown in FIG. 9, the water purifier 10 according to an aspect of the present invention may include the composite filter assembly 100 and the main filter 200 described with reference to FIGS. 1 to 8. That is, the water purifier 10 according to an aspect of the present invention may include the composite filter assembly 100 and the main filter 200 as the filtering unit 20. In addition, the water purifier 10 according to an aspect of the present invention may further include a pressing unit 30 and a composite filter mounting unit F shown in FIGS. 4 and 8.

As described with reference to FIGS. 1 to 8, the composite filter assembly 100 may include a first filter unit 110 and a second filter unit 150.

In addition, as shown in FIG. 9, when a flow path is formed by using the composite filter assembly 100 and the main filter 200 together, the water to be treated is the first filter unit 110 of the composite filter assembly 100 and the Any one of the second filter units 150, the main filter 200, and the other one of the first filter unit 110 and the second filter unit 150 may be provided to the user through a flow path sequentially.

At this time, according to the flow path connection structure between the first filter unit 110 and the second filter unit 150 and the main filter 200, the filter is filtered by the first filter unit 110 of the composite filter assembly 100 and then 1 The purified water discharged through the outlet (P2) is configured to flow into the second inlet (P3) of the second filter unit 150 through the main filter 200, or the second filter unit ( After filtering at 150), the purified water discharged through the second outlet P4 may be configured to flow into the first inlet P1 of the first filter unit 110 through the main filter 200.

In this way, the first filter unit 110 of the composite filter assembly 100 may be positioned upstream of the main filter 200 and the second filter unit 150 in a flow path arrangement, or the main filter 200 and the second filter unit 150 Although it may be located downstream of the filter unit 150, for convenience of explanation, the first filter unit 110 will be described as being positioned upstream of the second filter unit 150 in the water piping diagram of FIG. 9. .

First, the first filter unit 110 may be composed of a single filter element, but may be composed of a pre-processing filter (composite filter) including a sediment filter and a pre-carbon filter. In this case, the water flowing into the first filter unit 110 through the first inlet (P1) is filtered while passing through the sediment filter, and then is additionally filtered through the pre-carbon filter and then flows out through the first outlet (P2). Can be.

In addition, the second filter unit 150 may be configured as a post-processing filter including a post carbon filter, and water flowing into the second filter unit 150 through the second inlet P3 passes through the post carbon filter. After being filtered, it may be discharged through the second outlet (P4).

In addition, the main filter 200 may be configured to filter finer particles than the first filter material 111 and the second filter material 151 provided in the composite filter assembly 100. That is, the main filter 200 may be formed of a filter capable of filtering the finest particles among filters provided in the filter unit 20 of the water purifier 10.

As the main filter 200, various known filters such as a reverse osmosis membrane filter (RO membrane filter), a hollow fiber membrane filter, and a nano filter (nano trap) may be used. In the case of the water purifier 10 illustrated in FIG. 9, a case in which a reverse osmosis membrane filter is used as the main filter 200 is illustrated, but the present invention is not limited thereto. However, for convenience of explanation, hereinafter, a case where a reverse osmosis membrane filter is used as the main filter 200 will be described as an example, and the same reference numeral 200 as the main filter 200 will be used for the reverse osmosis membrane filter.

In addition, the pressurizing unit 30 may be disposed in a flow path at the front end of the reverse osmosis membrane filter 200 to pressurize water supplied to the main filter 200, in particular, the reverse osmosis membrane filter, and may be configured as a pump as an example.

And, referring to FIGS. 4 and 8, the water purifier 10 according to an aspect of the present invention may include a composite filter mounting portion (F). The composite filter mounting portion (F) includes a first inlet-side connection port (Q1) corresponding to a first inlet (P1), a first outlet (P2), a second inlet (P3), and a second outlet (P4), respectively. 1 outlet-side connection port (Q2), a second inlet-side connection port (Q3), and a second outlet-side connection port (Q4) may be provided, and accordingly, the first inlet (P1) of the composite filter assembly 100, The first outlet P2, the second inlet P3, and the second outlet P4 are fitted to the corresponding connection ports Q1, Q2, Q3, and Q4, respectively, so that a plurality of flow paths can be connected at once.

And, as in the embodiment of the composite filter assembly 100 shown in Figs. 5 to 8, the installation position (height) of the first inlet (P1) and the first outlet (P2), the second inlet (P3) and the second 2 When the outlet port (P4) has a different installation position (height), the first inlet port (Q1) and the first outlet port (Q2) of the composite filter mounting unit (F) have a first inlet port (P1) and The extension pipes C1 and C2 may be connected to be connected to the first outlet P2. Accordingly, even in the case of the embodiment of FIGS. 5 to 8, a plurality of flow paths between the composite filter assembly 100 and the composite filter mounting unit F may be connected at the same time.

Meanwhile, in order to perform filtration through the composite filter assembly 100 and the main filter 200 of the filtration unit 20, a plurality of flow paths in which various parts are installed inside the water purifier 10 as shown in FIG. 9 Can be formed.

For example, according to the opening of the feed valve (FV) that is turned on and off to supply or cut off the supply of water, the water to be treated (raw water) is passed through the primary filter inlet passage (L1) through the first inlet of the composite filter assembly (100). It flows into (P1). This feed valve (FV) may be provided in the flow path of the front end of the pressing portion 30, for example, may be installed in the primary filter outlet flow path (L2). In addition, a regulator RV for adjusting raw water to a predetermined amount of pressure may be installed in the primary filter intake passage L1. The water flowing into the first inlet P1 is filtered through the first filter unit 110, and the primary purified water first filtered by the first filter unit 110 is discharged through the first outlet P2.

The primary purified water discharged through the first outlet P2 is supplied to the pressurizing unit 30 through the first filter outlet passage L2. At this time, in the first filter outlet passage (L2), a first flow sensor (FS1) that measures the flow rate of the primary purified water, the feed valve (FV), and the TDS (total dissolved solids) of the primary purified water, and the temperature are respectively measured. A first TDS sensor TDS1 and a first temperature sensor TS1 may be installed.

Further, the pressurization unit 30 may be driven to pressurize water supplied to the reverse osmosis membrane filter 200 because sufficient filtration may not be performed in the reverse osmosis membrane filter 200 only by the pressure of raw water.

The primary water pressurized by the pressurizing unit 30 flows into the reverse osmosis membrane filter 200 through the main filter inlet passage L3. In this case, a pressure sensor PS for measuring the pressure of water flowing into the reverse osmosis membrane filter 200 may be installed in the main filter intake passage L3.

The primary water flowing into the reverse osmosis membrane filter 200 is separated into secondary water filtered through a membrane provided in the reverse osmosis membrane filter 200 and concentrated water (living water) that has not passed through the membrane. The concentrated water may be discharged to the drainage passage D through the drain passage LD. At this time, the drain passage LD has a resistance to limit the amount or ratio of the concentrated water discharged through the drain passage LD (the ratio of the water discharged as purified water and the water discharged as concentrated water among the water introduced through the reverse osmosis membrane filter). A valve DV may be installed. That is, filtration pressure is formed in the reverse osmosis membrane filter 200 by the small flow path diameter of the resistance valve (DV), through which some water is filtered through the membrane of the reverse osmosis membrane filter 200, and the remaining water is concentrated as concentrated water. Drainage can be achieved.

On the other hand, the secondary water filtered through the membrane provided in the reverse osmosis membrane filter 200 is filtered through the second filter inlet passage (main filter outlet passage) (L4) through the second filter unit 150 through the second inlet (P3). ) And filtered. At this time, in the second filter inlet passage (main filter outlet passage) L4, a check valve CV for preventing reverse flow of water from the second filter unit 150 side to the reverse osmosis membrane filter 200, and the reverse osmosis membrane filter 200 A second TDS sensor (TDS2) and a second temperature sensor (TS2) for measuring TDS (total dissolved solids) and temperature of the secondary purified water filtered in) may be installed.

In addition, the secondary water filtered by the second filter unit 150 flows into the second filter outlet passage L5 through the second outlet P4, and thereafter, the first extraction unit S1 made of a faucet or coke, etc. ) Can be supplied to the user. In addition, a second flow sensor FS2 that measures the flow rate of water extracted through the first extraction unit S1 in the second filter outlet flow path L5, and a high pressure switch that generates a signal when a pressure higher than the set pressure is applied. (HPS) can be installed. That is, when the extraction of the first extraction unit S1 is finished and the pressure in the secondary filter outlet passage L5 increases, the control unit (not shown) based on the signal generated from the high pressure switch HPS, the feed valve FV ) Is turned off or the operation of the pressurizing unit 30 is stopped to block the supply of water to the reverse osmosis membrane filter 200.

Meanwhile, a branch passage L6 may be installed to provide the first purified water filtered through only the first filter unit 110 to the user through the second extraction unit S2 made of a faucet or coke.

In order to provide the primary water supplied from the composite filter assembly 100 to the main filter 200 to a user without passing through the main filter 200, the branch passage L6 is a front end of the main filter 200. It may be installed on the flow path of, for example, the primary filter outlet flow path L2. There is an advantage that various uses of the purified water filtered in the composite filter assembly 100 are possible through the installation of the branch flow path L6.

As described above, the water purifier 10 according to an embodiment of the present invention can reduce the total number of filters provided in the water purifier 10 by combining a plurality of filter units and achieve miniaturization of the product. By reducing the number, it is possible to increase the effectiveness of management. In addition, the water purifier 10 according to an embodiment of the present invention has a high degree of freedom in the configuration of a flow path by installing a plurality of inlets and a plurality of outlets, and it is possible to combine filters that are spaced apart from each other in the flow path arrangement. Filters that can be used can be diversified, and filters with similar filter replacement cycles can be combined.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and variations are possible without departing from the technical spirit of the present invention described in the claims. It will be obvious to those of ordinary skill in the field.

10... water purifier 20... filter part
30... pressurized part 100... composite filter assembly
101...Filter housing 102...Housing body
102a... upper body 102b... lower body
103... housing cap 104... junction
105... Euro extension 105a... 1st extension
105b... 2nd extension 109... Outlet inlet mounting surface
110... first filter part 111... first filter material
113...First upper cap 115...First lower cap
116... outlet 130... flow path separation member
150... second filter unit 151... second filter material
155... 2nd lower cap 156... Outlet
200... main filter (reverse osmosis membrane filter)
A1... 1st area A2... 2nd area
CV... check valve D... drainage
DV... Resistance valve F... Composite filter mounting part
FV... Feed valve FS1... 1st flow sensor
FS2... 2nd flow sensor HPS... high pressure switch
L1... primary filter inlet flow channel L2... primary filter outlet flow channel
L3... Main filter inlet flow path
L4...Second filter inlet passage (main filter outlet passage)
L5... 2nd filter outlet flow path L6... Branch flow path
LD... Drain passage LL1... 1st inflow passage
LL2... 1st outflow channel LL3... connecting channel
LL4... 2nd inflow channel LL5... 2nd outflow channel
LLA... 1st Extension Euro LLB... 2nd Extension Euro
P1... 1st inlet P2... 1st outlet
P3... 2nd inlet P4... 2nd outlet
PS... pressure sensor
Q1... 1st inlet side connection port Q2... 1st outlet side connection port
Q3... 2nd inlet side connection port Q4... 2nd outlet side connection port
S1... the first extraction part S2... the second extraction part
TDS1... 1st TDS sensor TDS2... 2nd TDS sensor
TS1... 1st temperature sensor TS2... 2nd temperature sensor

Claims (19)

A filter housing having a first inlet, a first outlet, a second inlet and a second outlet;
A first filter unit accommodated in the filter housing and filtering water introduced through the first inlet;
A second filter unit accommodated in the filter housing so as to be positioned in a vertical direction with respect to the first filter unit, and filters water introduced through the second inlet; And
A flow path separating member partitioning a flow path of water flowing through the first filter part and a flow path of water flowing through the second filter part;
Including,
The purified water filtered by the first filter unit is discharged through the first outlet,
The purified water filtered by the second filter unit is discharged through the second outlet,
The first inlet, the first outlet, the second inlet and the second outlet are formed to face the same direction in the filter housing. The method of claim 1,
The second filter unit is accommodated under the filter housing,
The first filter unit is accommodated in the upper portion of the filter housing so as to be positioned above the second filter unit,
The flow path separation member is a composite filter assembly disposed between the first filter unit and the second filter unit. The method of claim 2,
The first inlet, the first outlet, the second inlet and the second outlet are formed in the filter housing to face a downward direction of the filter housing. The method of claim 3,
A connection passage through which water flows into the first filter unit or water flows out from the first filter unit is formed between the first filter unit and the second filter unit,
The flow path separating member is a composite filter assembly for separating the upper end of the second filter unit from the connection flow path. The method of claim 4,
The flow path separating member is a composite filter assembly comprising an upper cap supporting an upper end of the second filter part. The method of claim 4,
A composite filter assembly having a structure in which a region in which the connection passage is formed does not overlap a region through which water flows through the second filter unit based on the vertical direction of the filter housing. The method of claim 4,
Based on the vertical direction of the filter housing, the filter housing is a composite filter assembly having a flow path extension portion in which water flows into and out of the first filter portion at a portion corresponding to a region through which water flows through the second filter portion. The method of claim 7,
The channel extension unit includes a first extension unit forming a first extension channel through which water introduced through the first inlet port flows into the first filter unit, and water filtered by the first filter unit flows out to the first outlet port. It has a second extension portion forming a second extension passage,
The composite filter assembly wherein the first and second extensions are integrally formed with the filter housing. The method of claim 7,
The first inlet, the first outlet, the second inlet and the second outlet are all formed on the lower side of the filter housing. The method of claim 9,
The composite filter assembly of the first inlet, the first outlet, the second inlet and the second outlet is formed at the same end of the first inlet port. The method according to any one of claims 1 to 10,
At least one of the first filter unit and the second filter unit may be configured as a complex filter in which a plurality of filter elements are arranged in series in a flow path. The method according to any one of claims 1 to 10,
One of the first filter unit and the second filter unit is composed of a pre-treatment filter, and the other is composed of a post-treatment filter. The method according to any one of claims 1 to 10,
The first filter unit has a first inflow channel formed at the outer side in the radial direction, and a first outflow channel is formed at the center thereof,
A composite filter assembly in which a second inflow passage is formed on the outer side in the radial direction of the second filter unit, and a second outlet passage is formed in the center. The method according to any one of claims 1 to 10,
The filter housing is integrally formed by a housing body and a housing cap incorporated therewith,
The second filter unit, the flow path separating member, and the first filter unit are sequentially stacked in an inner space of the filter housing in an integrally formed direction from a lower side to an upper side.
The composite filter assembly of any one of claims 1 to 10; And
A main filter filtering particles finer than the filter material provided in the composite filter assembly;
Including,
The water to be treated is a water purifier provided to the user through a flow path passing through one of the first filter unit and the second filter unit of the composite filter assembly, the main filter, and the remaining one of the first filter unit and the second filter unit. . The method of claim 15,
A composite filter mounting unit having a connection port corresponding to the first inlet, the first outlet, the second inlet, and the second outlet, respectively;
It further includes,
The first inlet, the first outlet, the second inlet, and the second outlet of the composite filter assembly are fitted into the connection port, so that a plurality of flow paths are connected at once. The method of claim 15,
The purified water discharged through the first outlet of the composite filter assembly is configured to flow into the second inlet through the main filter, or
The purified water discharged through the second outlet of the composite filter assembly is configured to flow into the first inlet through the main filter. The method of claim 17,
A water purifier provided with a branch passage for providing purified water supplied to the main filter from the composite filter assembly to a user without passing through the main filter in a passage in front of the main filter. The method of claim 15,
A pressing unit disposed in a flow path at a front end of the main filter to pressurize the water supplied to the main filter;
It further includes,
The main filter is a water purifier comprising a reverse osmosis membrane filter.

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