Under-sink water purifier

Abstract

A modular under-sink water purifier according to one aspect of the present invention includes a main module installed inside a sink and a faucet located outside the sink, wherein the main module includes a main module housing having first and second coupling portions on one and other sides thereof so that a portion of a sub-module that can be detachably coupled to the main module can be selectively coupled thereto; a filter installed inside the main module housing to filter raw water to produce purified water; and a first and second water outlet member installed on one side of the first coupling portion and one side of the second coupling portion, respectively, so that the purified water produced by the filter can be discharged outside the main module housing, and the faucet includes a faucet housing and a third water outlet member installed in the faucet housing so that the purified water supplied from the filter can be discharged outside.

Description

[Technical Field]

[0001] The present invention relates to an under-sink water purifier, and more particularly to an under-sink water purifier that can be installed on a sink. [Background technology]

[0002] Generally, a water purifier is a device that purifies raw water supplied from a water supply source such as a tap or a mineral water tank, and supplies purified water to the user by removing heavy metals and other harmful impurities contained in the raw water through physical or chemical methods such as sedimentation and filtration sterilization. Among these, under-sink water purifiers are installed on a sink.

[0003] Korean Patent Publication No. 2019-0092971 by LG Electronics Co., Ltd. discloses a conventional water dispensing device. This water dispensing device includes an under-sink unit installed inside the sink to produce purified water or hot water, and a faucet installed above the sink to discharge the produced purified water or hot water.

[0004] However, such a water dispensing device has a problem in that the under-sink portion installed inside the sink has a fixed outer shape, which reduces the utilization of the space inside the sink, and furthermore, it can only be installed in a sink having a structure that matches the shape of the under-sink portion.

[0005] In addition, such a water dispensing device is configured such that a hot water module for generating hot water is installed inside the body of the under-sink unit. Therefore, replacing the hot water module with a water treatment module that provides a different function requires not only specialized knowledge of the structure of the under-sink unit, but also the hassle of having to disassemble and reassemble the under-sink unit itself.

[0006] The structural characteristics of such a water dispensing device make it difficult to satisfy the needs of users who wish to selectively receive various water treatment functions such as cold water, hot water, or carbonated water.

[0007] Korean Patent Publication No. 2021-0082955 by Kyowon Proparty Co., Ltd. discloses a conventional separate module water purifier. This separate module water purifier consists of a first main module installed inside the sink to produce purified water, a second main module that cools the purified water to produce cold water, and a water outlet unit installed above the sink.

[0008] In such a separate module type water purifier, the second main module receives purified water from the first main module and produces cold water. To this end, conventional separate module type water purifiers have a plurality of connecting pipes for fluidly connecting the first main module and the second main module.

[0009] However, in order to replace such a second main body module with another main body module, the connecting pipes must be separated from the second main body module and then reconnected to the other main body module, which requires not only specialized knowledge of the water purifier structure but also the hassle of disassembling and reassembling the connecting pipes.

[0010] Furthermore, since such a separate module type water purifier is configured so that the first main body module can be fluidly connected to only one other main body module, there is a problem that it is difficult to use multiple water treatment modules that provide different water treatment functions by connecting them to the first main body module at the same time.

[0011] The structural characteristics of such a separate module type water purifier make it difficult to satisfy the needs of users who want to selectively receive various types of water treatment functions, such as cold water, hot water, or carbonated water. Summary of the Invention [Problem to be solved by the invention]

[0012] SUMMARY OF THE INVENTION The present invention has been devised in consideration of the above points, and an object of the present invention is to provide an under-sink type water purifier that can be installed on sinks with various structures.

[0013] Another object of the present invention is to provide an under-sink type water purifier that can increase the space utilization of the interior space of the sink.

[0014] It is yet another object of the present invention to provide an under-sink type water purifier in which the main module and sub-module, which are components of the water purifier, can be attached and detached easily and simply without requiring specialized knowledge.

[0015] It is yet another object of the present invention to provide an under-sink type water purifier that can meet the needs of users who wish to receive various water treatment functions.

[0016] It is yet another object of the present invention to provide an under-sink type water purifier that can satisfy the needs of users who wish to selectively receive only the water treatment functions they desire.

[0017] The objects of the present invention are not limited to those mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the following description. [Means for solving the problem]

[0018] According to one aspect of the present invention, there is provided a modular under-sink water purifier including a main module installed inside a sink and a faucet located outside the sink, wherein the main module includes a main module housing having first and second coupling portions on one and the other sides thereof so that a portion of a sub-module that can be detachably coupled to the main module can be selectively coupled thereto; a filter installed inside the main module housing to filter raw water to produce purified water; and a first water outlet member and a second water outlet member installed on one side of the first coupling portion and one side of the second coupling portion, respectively, so that the purified water produced by the filter can be discharged outside the main module housing, and the faucet includes a faucet housing; and a third water outlet member installed in the faucet housing so that the purified water supplied from the filter can be discharged outside.

[0019] In this case, the first coupling portion includes a first bracket having a first coupling groove into which the portion of the sub-module can be inserted; a first locking member movably coupled to the first bracket so as to be movable between a locking position in which the portion of the sub-module is locked and an unlocking position in which the portion of the sub-module is separated; and a first operating member provided on one side of the first locking member so as to move the first locking member, and one side of the first water outlet member may be positioned inside the first coupling groove.

[0020] In this case, one side of the first operating member may be provided with a button exposed to the outside of the main module housing, and one side of the button may be connected to the first operating member so as to be pressed into the inside of the main module housing by an external force, thereby moving the first operating member.

[0021] In this case, the outer portion of the main module housing may include a first side wall on which the first coupling portion is provided, the first side wall may include a first portion adjacent to the sub-module coupled to the first coupling portion and a second portion provided on an edge of the first portion, the first coupling groove may be disposed in the first portion of the first side wall, and the first operating member may be disposed in the second portion of the first side wall.

[0022] In this case, the second coupling portion includes a second bracket having a second coupling groove into which the portion of the sub-module can be inserted; a second locking member movably coupled to the second bracket so as to be movable between a locking position in which the portion of the sub-module is locked and an unlocking position in which the portion of the sub-module is separated from the locking position; and a second operating member provided on one side of the second locking member so as to move the second locking member, and one side of the second water outlet member may be positioned inside the second coupling groove.

[0023] In this case, the outer portion of the main module housing may include a second side wall on which the second coupling portion is provided, the second side wall may include a first portion adjacent to the sub-module coupled to the second coupling portion and a second portion provided on an edge of the first portion, the second coupling groove may be located in the second portion of the second side wall, and the second operating member may be located in the second portion of the second side wall.

[0024] In this case, the main module housing extends in the front-to-rear direction and has a box shape with the first side wall and the second side wall on both sides, and the first operating member may be located in the front part of the first side wall and the second operating member may be located in the rear part of the second side wall.

[0025] In this case, the system may further include a first sub-module arranged adjacent to the main module, the first sub-module including: a first sub-module housing having a first corresponding coupling portion on one side thereof so that the first sub-module can be selectively coupled to either the first coupling portion or the second coupling portion; a first corresponding water inlet member provided on one side of the first corresponding coupling portion so that the first water inlet member can be selectively fluidly connected to either the first water outflow member or the second water outflow member; and a first sub-module side water treatment unit that receives purified water from the first corresponding water inlet member and heats or cools it, and the third water outflow member may be configured to receive purified water cooled or heated by the first sub-module side water treatment unit.

[0026] In this case, the second sub-module may further include a second sub-module arranged adjacent to the main module, the second sub-module including a second sub-module housing having a second corresponding coupling portion on one side thereof so that the second sub-module can be coupled to the other of the first coupling portion and the second coupling portion; a second corresponding water inlet member provided on one side of the second corresponding coupling portion so that the second corresponding water inlet member can be fluidly connected to the other of the first water outlet member and the second water outlet member; and a second sub-module side water treatment unit that receives purified water from the second corresponding water inlet member and heats or cools it, and the third water outlet member may be configured to receive purified water cooled or heated by the second sub-module side water treatment unit.

[0027] In this case, the first sub-module water treatment unit may be a cold water generation unit for cooling purified water to generate cold water, and the second sub-module water treatment unit may be a hot water generation unit for heating purified water to generate hot water.

[0028] In this case, an outer portion of the main module housing may be provided with a first side wall on which the first coupling portion is provided and a second side wall on which the second coupling portion is provided, and the first side wall and the second side wall may be arranged to face each other.

[0029] In this case, the main module may include a main module-side water treatment unit provided inside the main module housing to receive purified water from the filter and heat or cool it.

[0030] In this case, the faucet may include an ice making unit that receives purified water from the filter and makes ice; and an ice discharging member that discharges the ice made by the ice making unit to the outside.

[0031] In this case, the main module may include a piping member consisting of a purified water inlet portion that receives purified water from the filter, a first extension portion that extends in one direction from one side of the purified water inlet portion so as to supply purified water to the first water outlet member, and a second extension portion that extends in another direction from the one side of the purified water inlet portion so as to supply purified water to the second water outlet member.

[0032] In this case, one side of the first water outlet member and the second water outlet member may each be provided with a check valve to prevent purified water from being discharged outside the main module housing when the sub-module is not connected to the main module.

[0033] In this case, the main module includes a third coupling portion and a fourth coupling portion provided on the outer side of the main module housing so that other portions of the sub-module can be selectively coupled; and a first water inlet member and a second water inlet member provided on one side of the third coupling portion and one side of the fourth coupling portion, respectively, so that purified water discharged from the sub-module can enter the inside of the main module housing, and the third coupling portion can be spaced apart from one side of the first coupling portion, and the fourth coupling portion can be spaced apart from one side of the second coupling portion.

[0034] The first sub-module further includes a first sub-module disposed adjacent to the main module, the first sub-module including a first sub-module housing having a first water inlet side corresponding coupling portion selectively coupled to one of the first coupling portion and the second coupling portion and a first water outflow side corresponding coupling portion selectively coupled to one of the third coupling portion and the fourth coupling portion on an outer side thereof; a first corresponding water inlet member provided on one side of the first water inlet side corresponding coupling portion to be selectively fluidly connected to one of the first water inlet member and the second water inlet member; a first sub-module water treatment unit that receives and heats or cools purified water supplied from the first sub-module water treatment unit; and a first corresponding water outflow member that is provided in the first water outflow corresponding coupling so as to be selectively fluidly connected to one of the first water inlet member and the second water inlet member in order to discharge purified water supplied from the first sub-module water treatment unit to the outside of the first sub-module housing, wherein the first water outflow corresponding coupling is spaced apart from one side of the first water inlet corresponding coupling, and the third water outflow member is configured to be able to receive purified water that has been cooled or heated by the first sub-module water treatment unit. [Effects of the Invention]

[0035] The under-sink water purifier according to an embodiment of the present invention is configured so that the sub-module can be selectively attached to either one of the two sides of the main module, and the relative arrangement of the main module and the sub-module can be adjusted, so that it can be installed in sinks of various structures, thereby increasing the space utilization within the sink.

[0036] In addition, in the under-sink water purifier according to an embodiment of the present invention, the sub-module is disposed adjacent to the first portion of the first side wall of the main module, so that the sub-module and the main module can be disposed compactly, thereby increasing the space utilization within the sink.

[0037] In addition, the under-sink water purifier according to an embodiment of the present invention is configured such that the connecting portion of the main module and the corresponding connecting portion of the sub-module are detachably connected to each other, and the water outlet member provided on one side of the connecting portion and the corresponding water inlet member provided on one side of the corresponding connecting portion are fluidly connected. Therefore, the structural connection and fluid connection of the main module and the sub-module can be performed at the same time, and the connection / disconnection of the main module and the sub-module can be easily and simply performed without any specialized knowledge.

[0038] In addition, the under-sink type water purifier according to an embodiment of the present invention is configured such that the locking member, which can be operated to lock or unlock the corresponding connecting portion of the sub-module, is operated by an operating member that can be operated by a user, so that the main module and sub-module can be easily and simply connected / unconnected without any specialized knowledge.

[0039] In addition, in the under-sink water purifier according to an embodiment of the present invention, an operating member that can be operated to control the coupling and decoupling of the main module and the sub-module is disposed in the second part of the main housing, and the operating member can be accessed even when the sub-module and the main module are coupled to each other, so that the coupling / decoupling of the main module and the sub-module can be performed easily, simply, and intuitively without any specialized knowledge.

[0040] In addition, the under-sink water purifier according to the embodiment of the present invention can satisfy the needs of users who want to receive various water treatment functions, since the main module and the sub-module can each include a water treatment unit and the faucet can include an ice making unit.

[0041] In addition, the under-sink water purifier according to an embodiment of the present invention is provided with a plurality of sub-modules that can provide different water treatment functions, and only some of these sub-modules can be selectively connected to the main module for use, thereby meeting the needs of users who want to selectively receive only the functions they desire.

[0042] The effects of the present invention are not limited to the effects described above, and effects not mentioned will be clearly understood by those having ordinary skill in the art to which the present invention pertains from this specification and the accompanying drawings. [Brief explanation of the drawings]

[0043] [Figure 1] 1 is a perspective view of an under-sink water purifier according to an embodiment of the present invention, viewed from above, installed on a sink, in which the sink is indicated by dotted lines and components visible through the sink are indicated by solid lines. [Figure 2] 1 is a perspective view of an under-sink water purifier according to an embodiment of the present invention, viewed from above, installed on a sink, in which the sink is indicated by dotted lines and components visible through the sink are indicated by solid lines. [Figure 3] 1 is a view schematically illustrating an under-sink type water purifier according to an embodiment of the present invention. [Figure 4] 1 is an exploded perspective view of a main module and a sub-module coupled to the left side of the main module of an under-sink type water purifier according to an embodiment of the present invention; [Figure 5] 5 is an enlarged view of a portion of FIG. 4 so that a first coupling portion and a first water drainage member of a main module according to an embodiment of the present invention can be clearly seen. [Figure 6] 4 is a cross-sectional view showing a state in which a first water outlet member of a main module and a corresponding water inlet member of a sub-module are coupled to each other according to one embodiment of the present invention; [Figure 7] 5 is an enlarged view of a portion of FIG. 4 so that a corresponding coupling portion and a corresponding water inlet member of a sub-module according to an embodiment of the present invention can be clearly seen. [Figure 8] 1 is a perspective view of a main module and a sub-module coupled to the right side of the main module of an under-sink type water purifier according to an embodiment of the present invention, viewed from above; [Figure 9]1 is an exploded perspective view of a main module and a sub-module coupled to the right side of the main module of an under-sink type water purifier according to an embodiment of the present invention; [Figure 10] FIG. 10 is a perspective view of a main module and a sub-module coupled to the left side of the main module according to a modified example of the embodiment of the present invention, as viewed from above. [Figure 11] FIG. 11 is an exploded perspective view of the main module and the sub-module shown in FIG. 10. [Figure 12] 1 is a view schematically illustrating an under-sink type water purifier according to a modified example of an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0044] In its best form, the present invention provides a modular under-sink water purifier including a main module provided inside a sink and a faucet disposed outside the sink, wherein the main module includes a main module housing having a first coupling portion and a second coupling portion on one side and the other side, respectively, to selectively couple a portion of a sub-module that can be detachably coupled to the main module; a filter provided inside the main module housing to filter raw water to produce purified water; and a first water outlet member and a second water outlet member provided on one side of the first coupling portion and one side of the second coupling portion, respectively, to allow the purified water produced by the filter to be discharged to the outside of the main module housing.

[0045] The faucet provides an under-sink water purifier including a faucet housing; and a third water outlet member provided in the faucet housing so that purified water supplied from a filter can be discharged to the outside.

[0046] The words and terms used in this specification and claims should not be interpreted in a limited manner based on their ordinary or dictionary meanings, but should be interpreted in a manner that is consistent with the technical idea of ​​the present invention, in accordance with the principle that the inventor can define the terms and concepts in order to best describe his or her invention.

[0047] In this specification, the terms "comprise" or "have" are intended to describe the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0048] A component being "in front of," "behind," "above," or "below" another component does not only mean that it is disposed "in front of," "behind," "above," or "below" the other component immediately adjacent thereto, unless there are special circumstances, but also includes the case where another component is disposed between them. Furthermore, a component being "connected" to another component does not only mean that they are directly connected to each other, but also means that they are indirectly connected to each other, unless there are special circumstances.

[0049] 1 and 2 are perspective views of an under-sink water purifier according to an embodiment of the present invention installed on a sink, where the sink is shown in dotted lines and the components visible through the sink are shown in solid lines.

[0050] In the following description of the drawings, the coordinate axes shown in Fig. 1 will be used as a reference. More specifically, the direction of the x-axis in Fig. 1 is defined as the leftward direction, and the opposite direction is defined as the rightward direction. The direction of the y-axis in Fig. 1 is defined as the forward direction, and the opposite direction is defined as the backward direction. The direction of the z-axis in Fig. 1 is defined as the upward direction, and the opposite direction is defined as the downward direction.

[0051] Referring to Figures 1 and 2, an under-sink water purifier 1 according to one embodiment of the present invention is a water purifier that can be installed in a sink 2, and can include a main module 100 and a sub-module 200 that can be installed in the internal space S of the sink 2 and can be detachably connected to each other, and a faucet 300 that can be provided on the upper side of the sink 2.

[0052] In this case, the main module 100 may be configured to provide the original function of a water purifier, which is to filter raw water and generate purified water, and the sub-module 200 may be configured to provide the function of treating the generated purified water. The faucet 300 may be configured to discharge the purified water generated by the main module 100 or the sub-module 200 or the treated purified water to the outside.

[0053] For this purpose, the main module 100, the sub-module 200, and the faucet 300 may be fluidly connected by a predetermined flow path. The main module 100, the sub-module 200, and the faucet 300 may also have a predetermined flow path inside. Such a flow path may be formed of a flexible hose or pipe.

[0054] In this specification, water treatment of purified water means treating the purified water to have predetermined characteristics according to the user's preferences, such as heating the purified water to produce hot water, cooling the purified water to produce cold water, injecting carbon dioxide gas into the purified water to produce carbonated water, or adding a predetermined fragrance to the purified water.

[0055] As described above, the under-sink water purifier 1 according to one embodiment of the present invention can be configured to provide both purified water and treated purified water by combining the sub-module 200 with the main module 100, or to provide only purified water by placing the main module 100 alone. This allows the user to selectively provide only the functions they desire, thereby meeting various consumer needs.

[0056] In addition, according to this embodiment, as shown in FIGS. 1 and 2, the sub-module 200 can be selectively coupled to either one of the two sides of the main module 100, so that the main module 100 and the sub-module 200 can be appropriately arranged in various shapes of the internal space S, thereby improving the spatial utilization of the internal space S.

[0057] Hereinafter, another under-sink type water purifier according to an embodiment of the present invention will be described in more detail.

[0058] FIG. 3 is a schematic diagram of an under-sink water purifier according to an embodiment of the present invention. FIG. 4 is an exploded perspective view of a main module and a sub-module coupled to the left side of the main module of the under-sink water purifier according to an embodiment of the present invention. FIG. 5 is an enlarged view of a portion of FIG. 4 to clearly show a first coupling portion and a first water outlet member of the main module according to an embodiment of the present invention. FIG. 6 is a cross-sectional view showing a state in which a first water outlet member of the main module and a corresponding water inlet member of the sub-module are coupled to each other according to an embodiment of the present invention. FIG. 7 is an enlarged view of a portion of FIG. 4 to clearly show a corresponding coupling portion and a corresponding water inlet member of the sub-module according to an embodiment of the present invention. FIG. 8 is a perspective view of a main module of an under-sink water purifier according to an embodiment of the present invention, viewed from above, and a sub-module coupled to the right side of the main module. FIG. 9 is an exploded perspective view of a main module of an under-sink water purifier according to an embodiment of the present invention and a sub-module coupled to the right side of the main module.

[0059] 1 to 3, an under-sink type water purifier 1 according to an embodiment of the present invention may include a main module 100. The main module 100 is a basic component of the under-sink type water purifier 1 and performs the function of filtering raw water to produce purified water.

[0060] To this end, the main module 100 may include a main housing 110 and a filter 120. In this embodiment, the main housing 110 may house and protect other components of the main module 100 or provide a base on which these components can be mounted.

[0061] 4 and 9, in one embodiment of the present invention, the main housing 110 is a rectangular parallelepiped box-shaped structure. A sub-module 200 (described later) can be selectively coupled to the left and right sides of the main housing 110. Hereinafter, the sidewall on the left side of the main housing 110 will be referred to as a first sidewall 112, and the sidewall on the right side will be referred to as a second sidewall 114.

[0062] 4, in this embodiment, the first side wall 112 of the main housing 110 may be composed of a first portion 112a and a second portion 112b. The first portion 112a is a portion adjacent to and shielded from the sub-module 200 coupled to the left side of the main housing 110, and the second portion 112b is a portion located in front of the edge of the first portion 112a.

[0063] 9, in this embodiment, the second side wall 114 of the main housing 110 may be composed of a first portion 114a and a second portion 114b. The first portion 114a is a portion adjacent to and shielded from the sub-module 200 coupled to the right side of the main housing 110, and the second portion 114b is a portion located behind the edge of the first portion 114a.

[0064] That is, when the sub-module 200 is coupled to the left side of the main module 100, access to the first portion 112a of the first sidewall 112 is blocked, but access to the second portion 112b is possible. Similarly, when the sub-module 200 is coupled to the right side of the main module 100, access to the first portion 114a of the second sidewall 114 is blocked, but access to the second portion 114b is possible. This will be described in detail below along with the first coupling portion 140 and the second coupling portion 160.

[0065] Meanwhile, the shape of the main housing 110 is not particularly limited as long as it can accommodate and protect other components of the main module 100, and can be modified into various shapes, such as having a curved portion, as needed.

[0066] 3, in this embodiment, a filter 120 is provided inside the main housing 110. The filter 120 is configured to filter raw water to produce purified water, and a plurality of filters 120 may be provided as needed. A first flow path WL1 may be fluidly connected to one side of the filter 120.

[0067] According to an embodiment of the present invention, the first flow path WL1 may perform a function of supplying raw water from the outside to the filter 120. To this end, the first flow path WL1 may extend through the main housing 110 to the outside.

[0068] In one embodiment of the present invention, a second flow path WL2 through which purified water generated by the filter 120 can flow may be fluidly connected to the other side of the filter 120. The second flow path WL2 may extend to the outside through the main housing 110 and be fluidly connected to a flow path control valve V of the faucet 300, which will be described later. Accordingly, the purified water generated by the filter 120 may flow into the flow path control valve V.

[0069] 3, in one embodiment of the present invention, a third flow path WL3 may branch off from the second flow path WL2, and the purified water flowing from the second flow path WL2 may flow into the third flow path WL3.

[0070] In this embodiment, the third flow path WL3 may be provided with a T-shaped piping member TP, which can branch the purified water flowing through the third flow path WL3 into multiple flows.

[0071] For this purpose, in this embodiment, the T-shaped piping member TP may include a purified water inlet portion to which the third flow path WL3 is connected, a first extension portion extending from the top of the purified water inlet portion to the left, and a second extension portion extending from the top of the purified water inlet portion to the right, as shown in FIG.

[0072] At this time, according to one embodiment of the present invention, the first extension portion of such a T-shaped piping member TP may be fluidly connected to the fourth flow path WL4 described later, and the second extension portion may be fluidly connected to the fifth flow path WL5 described later.

[0073] Accordingly, a portion of the purified water flowing through the third flow path WL3 may flow into the fourth flow path WL4, and the remainder may flow into the fifth flow path WL5. Meanwhile, the T-shaped piping member TP may be replaced with various known piping members that can branch the incoming fluid into multiple flows.

[0074] 3 and 4, in one embodiment of the present invention, a first coupling portion 140 may be provided on a first side wall 112 of a main housing 110. The first coupling portion 140 is configured to detachably couple the main module 100 and a sub-module 200 (described later) to each other. That is, the sub-module 200 may be coupled to the left side of the main housing 110 via the first coupling portion 140.

[0075] 4 to 6, in this embodiment, the first coupling part 140 may include a first bracket 142, a first locking member 144, and a first operating member 146.

[0076] In this embodiment, the first bracket 142 may be located at the lower part of the front side of the first side wall 112. In this case, the rear part of the first bracket 142 may be located at the first portion 112a of the first side wall 112, and the front part of the first bracket 142 may be located at the second portion 112b.

[0077] In this embodiment, a first coupling groove 142a may be formed at a rear portion of the first bracket 142, recessed so as to be recessed toward the inside of the main housing 110. At this time, the first coupling groove 142a may have a rectangular cross section corresponding to an insertion member 222 of the sub-module 200, which will be described later. A first through-hole 142b may be formed at a front portion of the inner circumferential surface of the first coupling groove 142a.

[0078] A first operation hole 142c may be formed in a front portion of the first bracket 142 located on the second portion 112b of the first side wall 112.

[0079] Meanwhile, according to one embodiment of the present invention, a first operating member 146 may be provided at a front portion of the first bracket 142. The first operating member 146 may have a shape that can be operated by a user.

[0080] For example, as shown in the drawings, one side of the first operating member 146 may have a button shape and may be exposed to the outside through the first operating hole 142c so that it can be pressed into the inside of the main housing 110 by being pressed by an external force.

[0081] As described above, according to this embodiment, the first operating member 146 is provided in the shape of a button so that the user can intuitively recognize that it is configured to be operated, thereby increasing user convenience.

[0082] 6, in this embodiment, the other side of the first operating member 146 may extend from one side of the first operating member 146 toward the inside of the main housing 110. The end of the other side of the first operating member 146 may be formed to be inclined toward the inside of the main housing 110 as it approaches the first through-hole 142b.

[0083] At this time, although not shown, a return spring may be provided on one side of the first operating member 146 so that the first operating member 146 can be placed in a predetermined position when no external force is applied.

[0084] 5 and 6, in one embodiment of the present invention, a first locking member 144 may be disposed on one side of the first bracket 142. The first locking member 144 is configured to be operated by a first operating member 146 to couple or uncouple the main module 100 and the sub-module 200.

[0085] In this embodiment, the first locking member 144 may be provided to be positioned at a coupling position where one side thereof protrudes into the first coupling groove 142a through the first through-hole 142b, or at a disengaging position where one side thereof protrudes out of the first through-hole 142b and is positioned inside the main housing 110. The first locking member 144 may be configured to be movable from the coupling position to the disengaging position, or in the opposite direction.

[0086] The other side of the first locking member 144 may be configured to contact the inclined end of the other side of the first operating member 146. More specifically, the other side of the first locking member 144 may be formed to be inclined toward the outside of the main housing 110 as it goes away from the first through-hole 142b. Accordingly, the other side of the first locking member 144 and the other side of the first operating member 146 may contact along a predetermined inclined plane L.

[0087] 7, in this embodiment, when the first operating member 146 is pressed into the main housing 110 by an external force, the other side of the first locking member 144 is pushed out along a predetermined inclined surface L. Accordingly, the first locking member 144 can be moved from the coupled position to the disengaged position.

[0088] Meanwhile, although not shown, a predetermined return spring may be provided on one side of the first locking member 144 so that the first locking member 144 is positioned in the coupled position when no external force is applied to the first operating member 146.

[0089] 4 to 6 again, a first drainage member 150 may be provided on one side of the first bracket 142 of the first coupling part 140. The first drainage member 150 may be a pipe or a valve through which a fluid can flow.

[0090] At this time, the first water drainage member 150 may penetrate the first bracket 142. One end of the first water drainage member 150 may be positioned inside the first coupling groove 142a of the first bracket 142.

[0091] Accordingly, one end of the first water outflow member 150 may be exposed to the outside of the main housing 110. The first water outflow member 150 may be fluidly connected to a corresponding water inflow member 230 of the sub-module 200 (described later) through the end exposed to the outside.

[0092] 3, in this embodiment, the fourth flow path WL4 may be provided between the first water outflow member 150 and the T-shaped piping member TP. The fourth flow path WL4 fluidly connects the first water outflow member 150 and the T-shaped piping member TP.

[0093] Accordingly, purified water flowing through the third flow path WL3 flows into the first water outlet member 150 through the fourth flow path WL4 and can then be discharged to the outside of the main module 100 through the first water outlet member 150. As will be described in more detail below, the purified water discharged to the outside of the main module 100 can flow into the sub-module 200 for water treatment.

[0094] According to an embodiment of the present invention, the fourth flow path WL4 may be provided with a first check valve CV1. The first check valve CV1 is configured to prevent fluid from flowing back from the first water outlet member 150 to the fourth flow path WL4.

[0095] In addition, the first check valve CV1 can also perform the function of controlling the flow of fluid so that purified water can flow from the fourth flow path WL4 to the first water outlet member 150 only when the first water outlet member 150 and the corresponding water inlet member 230 described later are fluidly connected.

[0096] Thus, the purified water flowing through the fourth flow path WL4 can be forced to be discharged into the sub-module 200 through the first water outlet member 150.

[0097] Meanwhile, referring to FIGS. 3, 8 and 9, in one embodiment of the present invention, a second coupling portion 160 and a second water drainage member 170 may be provided on the second side wall 114 of the main housing 110.

[0098] The second coupling part 160 may be located at the lower part of the rear side of the second side wall 114, and the second drainage member 170 may be provided on one side of the second coupling part 160. The second coupling part 160 may include a second bracket, a second locking member, and a second operating member 166.

[0099] In this embodiment, the second bracket, second locking member, second operating member, and second water drainage member 170 of the second connecting part 160 may be configured similarly to the first bracket 142, first locking member 144, first operating member 146, and first water drainage member 150 of the first connecting part 140, respectively, and therefore the description thereof will be substituted with the description of the first connecting part 140 and the first water drainage member 150.

[0100] 3, in this embodiment, the fifth flow path WL5 may be provided between the second water outflow member 170 and the T-shaped piping member TP. The fifth flow path WL5 may fluidly connect the second water outflow member 170 and the T-shaped piping member TP. At this time, the fifth flow path WL5 may be provided with a second check valve CV2.

[0101] The second check valve CV2 can perform the same function for the fifth flow path WL5 and the second water outflow member 170 as the first check valve CV1 performs for the fourth flow path WL4 and the first water outflow member 150.

[0102] According to one aspect of the present invention, the main module 100 may further include a main module water treatment unit 130. As described above, the main module water treatment unit 130 may have various known configurations capable of treating purified water. For example, the main module water treatment unit 130 may be a hot water generating unit, a cold water generating unit, a carbonated water generating unit, or a flavor adding unit.

[0103] In this embodiment, the main module water treatment unit 130 is housed inside the main housing 110 and protected from the outside. A sixth flow path WL6 may be fluidly connected to the main module water treatment unit 130 so as to receive purified water generated by the filter 120. In this case, the sixth flow path WL6 may be a flow path branched from the second flow path WL2. Accordingly, the purified water flowing through the second flow path WL2 may flow into the main module water treatment unit 130 and be treated.

[0104] In addition, in this embodiment, the main module water treatment unit 130 may be connected to a seventh flow path WL7 that is fluidly connected to a flow path control valve V of the faucet 300, which will be described later. Accordingly, purified water treated in the main module water treatment unit 130 may flow into the flow path control valve V through the seventh flow path WL7.

[0105] Meanwhile, referring again to FIGS. 1 to 3, the sub-module 200 of the under-sink type water purifier 1 according to an embodiment of the present invention may be configured to treat and provide purified water generated in the main module 100.

[0106] To this end, the sub-module 200 may include a sub-housing 210 and a sub-module water treatment unit 240 housed within the sub-housing 210 .

[0107] In this embodiment, the sub-housing 210 has a rectangular parallelepiped box-like structure. One side wall of the sub-housing 210 faces the main housing 110 of the main module 100 and can be coupled to it. Hereinafter, when the sub-module 200 and the main module 100 are coupled, the one side wall of the sub-module 200 facing the main module 100 will be referred to as a corresponding wall 212.

[0108] As described above, according to this embodiment, the sub-module 200 and the main module 100 are configured to be coupled by arranging the corresponding wall 212 of the sub-housing 210 and the first side wall 112 of the main housing 110 adjacent to each other, so that the sub-module 200 and the main module 100 can be compactly arranged in the internal space S (shown in FIG. 1) of the sink table 2 (shown in FIG. 1). Accordingly, according to this embodiment of the present invention, the space utilization of the internal space S (shown in FIG. 1) of the sink table 2 (shown in FIG. 1) can be increased.

[0109] Meanwhile, the shape of the sub-housing 210 is not limited to the box-like structure described above, and may be modified to have various shapes, such as having a curved portion, as needed.

[0110] In this embodiment, the sub-module water treatment unit 240 may have various known configurations capable of treating the supplied purified water, as described above. For example, the sub-module water treatment unit 240 may be a hot water generating unit, a cold water generating unit, a carbonated water generating unit, or a flavoring unit.

[0111] Thus, according to an embodiment of the present invention, a plurality of sub-modules 200 each capable of providing different water treatment functions can be provided, and only some of these sub-modules 200 can be selectively coupled to the main module 100 for use, thereby satisfying the needs of users who wish to selectively receive only the desired functions.

[0112] In this case, it is preferable that the sub-module water treatment unit 240 and the main module water treatment unit 130 are configured to provide different functions so that purified water with various properties can be provided to the user.

[0113] For example, if the main module water treatment unit 130 is a hot water production unit for producing hot water, the sub-module water treatment unit 240 may be a cold water production unit for producing cold water.

[0114] Accordingly, the under-sink water purifier 1 according to an embodiment of the present invention can satisfy the needs of consumers who wish to receive purified water that has been subjected to various water treatments.

[0115] Meanwhile, the sub-module 200 needs to be fluidly connected to the main module 100 so that purified water can be supplied to the sub-module water treatment unit 240. The sub-module 200 needs to be structurally coupled to the main module 100 so that the fluid connection between the sub-module 200 and the main module 100 is stably maintained.

[0116] For this purpose, in this embodiment, the sub-module 200 may be provided with a corresponding coupling portion 220 and a corresponding water inlet member 230 .

[0117] 3 and 4, a corresponding water inlet member 230 may be provided at the lower front portion of the sub-housing 210. The corresponding water inlet member 230 is configured to receive purified water from the outside. The corresponding water inlet member 230 may be a pipe or a valve through which fluid can flow.

[0118] In this embodiment, the corresponding water inlet member 230 can penetrate the sub-housing 210. One end of the corresponding water inlet member 230 can protrude outside the sub-housing 210. Accordingly, the corresponding water inlet member 230 can be fitted into the first water inlet member 150 of the main module 100 and fluidly connected thereto.

[0119] An eighth flow path WL8 may be provided between the corresponding water inlet member 230 and the sub-module water treatment unit 240. The eighth flow path WL8 may fluidly connect the corresponding water inlet member 230 and the sub-module water treatment unit 240 so that purified water flowing into the corresponding water inlet member 230 can be supplied to the sub-module water treatment unit 240.

[0120] Referring to FIGS. 4 to 7, in this embodiment, the mating coupling part 220 may include an insert member 222 and a locking protrusion 224.

[0121] 7, the insert member 222 may have a sidewall extending outward to surround the corresponding water inlet member 230. In this case, the outer portion of the insert member 222 may have a rectangular cross section to correspond to the first coupling groove 142a of the main module 100.

[0122] In this embodiment, a locking protrusion 224 may be formed on the outer surface of the inserting member 222. At this time, the locking protrusion 224 may be formed so that the protruding height decreases as the outer portion approaches the end of the inserting member 222.

[0123] Accordingly, when the insertion member 222 of the sub-module 200 is press-fitted into the first coupling groove 142a of the main module 100, the outer portion of the locking protrusion 224 can push one side of the first locking member 144 toward the inside of the first through-hole 142b.

[0124] At the same time, the end of the corresponding water inlet member 230 of the sub-module 200 is inserted into the inside of the first water outlet member 150 of the main module 100, so that the sub-module 200 and the main module 100 are fluidly connected. That is, purified water can flow from the main module 100 to the sub-module 200.

[0125] Then, when the end of the insertion member 222 reaches the bottom surface of the first coupling groove 142a, the first locking member 144 no longer comes into contact with the outer portion of the locking protrusion 224, and the first locking member 144 can again protrude into the inside of the first coupling groove 142a and move to the coupling position.

[0126] The side of the locking protrusion 224 is locked to the first locking member 144 protruding inward from the first coupling groove 142a, so that the corresponding coupling part 220 is restrained so as not to come out of the first coupling groove 142a.

[0127] Accordingly, the main module 100 and the sub-module 200 can be structurally coupled, and the fluid connection between the main module 100 and the sub-module 200 can be stably maintained by the structural coupling.

[0128] When an external force is applied to press the first operating member 146 into the main housing 110 while the main module 100 and the sub-module 200 are inserted, the first locking member 144 moves to the uncoupling position. Accordingly, the constraint of the corresponding coupling portion 220 by the first locking member 144 is released, and the structural coupling between the sub-module 200 and the main module 100 can be released.

[0129] As described above, according to this embodiment, the main module 100 and the sub-module 200 can be detachably coupled by the first coupling part 140 and the corresponding coupling part 220. Meanwhile, the structure for detachably coupling the main module 100 and the sub-module 200 is not limited to the illustrated first coupling part 140 and the corresponding coupling part 220, and various structures capable of detachably coupling the main module 100 and the sub-module 200 may be applied.

[0130] As described above, in the under-sink water purifier 1 according to one embodiment of the present invention, the fluid connection / disconnection and structural connection / disconnection between the main module 100 and the sub-module 200 can be easily and simply performed at once, so that the sub-module 200 and the main module 100 can be easily and simply connected / disconnected without any specialized knowledge.

[0131] Furthermore, according to this embodiment, the first operating member 146 is located on the second portion 112b of the first side wall 112 of the main module 100. Accordingly, even when the main module 100 and the sub-module 200 are coupled adjacent to each other, the first operating member 146 can be accessed. Therefore, according to this embodiment, attachment and detachment of the main module 100 and the sub-module 200 can be easily operated and controlled.

[0132] As described above, the under-sink water purifier 1 according to one embodiment of the present invention is configured so that the user can simply and easily attach or detach the sub-module 200 to the main module 100 according to their preference to receive purified water or treated purified water, thereby meeting various consumer needs.

[0133] 3, in this embodiment, the sub-module water treatment unit 240 may be fluidly connected to a ninth flow path WL9 connected to a flow path control valve V of the faucet 300, which will be described later. Accordingly, purified water treated in the sub-module water treatment unit 240 may be supplied to the flow path control valve V.

[0134] 1 to 3, an under-sink type water purifier 1 according to an embodiment of the present invention may include a faucet 300 installed above a sink 2.

[0135] In this embodiment, the faucet 300 may include a faucet housing 310, a third water outlet member 320, an ice making unit 330, an ice discharge member 340 and a flow control valve V.

[0136] 1, the lower part of the faucet housing 310 may have a rectangular parallelepiped shape extending in the vertical direction, and the upper part of the faucet housing 310 may have a shape that protrudes slightly forward. The shape of the faucet housing 310 may be variously modified as needed.

[0137] Meanwhile, in this embodiment, a flow control valve V may be provided inside the faucet housing 310. The flow control valve V may be any of various known valves that can selectively discharge one of a plurality of fluids that flow in.

[0138] A tenth flow path WL10 may be fluidly connected to the flow path control valve V. The purified water discharged from the flow path control valve V may flow through the tenth flow path WL10.

[0139] As described above, the flow path control valve V can receive purified water produced by the filter 120 from the second flow path WL2, can receive purified water treated in the main module side water treatment unit 130 from the seventh flow path WL7, and can receive purified water treated in the sub-module side water treatment unit 240 from the ninth flow path WL9.

[0140] The flow path control valve V controls the flow paths so that purified water flowing through any one of the second flow path WL2, the seventh flow path WL7, and the ninth flow path WL9 can flow through the tenth flow path WL10.

[0141] In this embodiment, the tenth flow path WL10 may be fluidly connected to a third water outlet member 320 that penetrates the faucet housing 310. The third water outlet member 320 is configured to allow purified water or treated purified water to flow to the outside. The third water outlet member 320 may be a pipe or a valve.

[0142] Meanwhile, although not shown, the faucet 300 may further include a controller for controlling the flow path control valve V and an operation panel for receiving an external signal input.

[0143] Such a controller may be embodied by a processor, central processing unit (CPU), controller, arithmetic logic unit, arithmetic logic circuit, digital signal processor, microcomputer, FPGA, system on chip (SoC), programmable logic unit, microprocessor, etc.

[0144] The operation panel may be comprised of buttons or a touch screen that can be operated by a user to receive an external signal. Such an operation panel may be electrically connected to the controller and configured to transmit the externally input signal to the controller. Accordingly, the controller may control the flow path control valve V based on the input signal, reflecting the user's intention.

[0145] 1 to 3, the faucet 300 may further include an ice making unit 330 and an ice discharge member 340. The ice making unit 330 is configured to make ice by receiving purified water from the flow path control valve V. To this end, the ice making unit 330 may be fluidly connected to the flow path control valve V through an eleventh flow path WL11.

[0146] An ice discharge passage IL may be connected to the ice making unit 330. The ice discharge passage IL may be connected to an ice discharge member 340 provided in the faucet housing 310. The ice discharge member 340 may pass through the faucet housing 310. Accordingly, ice produced in the ice making unit 330 may be discharged to the outside.

[0147] As described above, the under-sink type water purifier 1 according to an embodiment of the present invention can be configured to provide ice according to the user's preference, thereby satisfying various needs of users.

[0148] Meanwhile, referring to Figures 1 and 4, as described above, the sub-module 200 of the under-sink type water purifier 1 according to one embodiment of the present invention can be disposed adjacent to and coupled to the left side of the main module 100.

[0149] However, the shape of the internal space S provided in the sink 2 may vary depending on the structure of the sink 2. Therefore, the relative arrangement of the main module 100 and the sub-module 200 needs to be adjusted to suit the shape of the internal space S.

[0150] 2, 8 and 9, as described above, the under-sink water purifier 1 according to an embodiment of the present invention is provided with the second coupling part 160 and the second water outlet member 170 on the second side wall 114 of the main module 100. Therefore, by simply rotating the sub-module 200 so that the corresponding wall 212 of the sub-module 200 faces the second side wall 114, the sub-module 200 can be disposed adjacent to the right side of the main module 100 and coupled thereto.

[0151] As described above, the under-sink water purifier 1 according to one embodiment of the present invention can be appropriately installed in sinks 2 of various structures because the relative positional relationship between the main module 100 and the sub-module 200 can be adjusted to fit the shape of the internal space S of the sink 2.

[0152] In addition, the under-sink type water purifier 1 according to one embodiment of the present invention can increase the space utilization of the internal space S of the sink 2 by appropriately adjusting the relative positional relationship between the main module 100 and the sub-module 200.

[0153] Furthermore, as shown in FIG. 8, even when the sub-module 200 is positioned adjacent to and coupled to the main module 100, the second operating member 166 of the second coupling portion 160 is exposed to the outside for easy access, allowing the user to easily and conveniently attach and detach the main module 100 and the sub-module 200.

[0154] Of course, although not shown, it is also possible to provide a plurality of sub-modules 200 and configure the plurality of sub-modules 200 to be simultaneously coupled to both sides of the main module 100. In this way, the needs of users can be met by providing purified water that has been treated in a variety of ways.

[0155] A modified example of the under-sink type water purifier according to an embodiment of the present invention will be described below.

[0156] Figure 10 is a perspective view of a main module and a sub-module coupled to the left side of the main module according to a modified embodiment of the present invention, viewed from above. Figure 11 is an exploded perspective view of the main module and the sub-module shown in Figure 10. Figure 12 is a diagram schematically illustrating an under-sink type water purifier according to a modified embodiment of the present invention.

[0157] 10 to 12, the under-sink type water purifier according to this modification is an under-sink type water purifier in which the flow paths between the faucet 300 and the main module 100 and the sub-module 200 can be configured more simply.

[0158] In this modified example, a first coupling portion 140-1 and a first coupling portion 140-2 may be disposed spaced apart in the vertical direction on the first side wall 112 of the main housing 110. A first water outlet member 150-1 may be provided on one side of the first coupling portion 140-1, and a first water inlet member 150-2 may be provided on one side of the first coupling portion 140-2.

[0159] The first water inlet member 150-2 and the flow path control valve V may be fluidly connected by a twelfth flow path WL12. Accordingly, purified water flowing through the first water inlet member 150-2 may flow into the flow path control valve V.

[0160] Similarly, a 2-1 coupling portion and a 2-2 coupling portion may be disposed spaced apart in the vertical direction on the second side wall 114 of the main housing 110. A second water outlet member 170-1 may be provided on one side of the 2-1 coupling portion, and a second water inlet member 170-2 may be provided on one side of the 2-2 coupling portion.

[0161] The second water inlet member 170-2 and the flow path control valve V may be fluidly connected by a thirteenth flow path WL13. Accordingly, purified water flowing through the second water inlet member 170-2 may flow into the flow path control valve V.

[0162] 10 to 12 again, in this modified example, a first corresponding coupling part 220-1 and a second corresponding coupling part 220-2 may be disposed on the corresponding wall 212 of the sub-module 200, spaced apart from each other in the vertical direction.

[0163] At this time, the position of the first corresponding coupling portion 220-1 of the sub-module 200 may be adjusted to face the first coupling portion 140-1 of the main module 100. The position of the second corresponding coupling portion 220-2 of the sub-module 200 may be adjusted to face the first coupling portion 140-2 of the main module 100.

[0164] A corresponding water inlet member 230-1 may be provided on one side of the first corresponding coupling portion 220-1, and a corresponding water outlet member 230-2 may be provided on one side of the second corresponding coupling portion 220-2.

[0165] 12, in this modified example, a ninth flow path WL9-1 may be connected to the sub-module side water treatment unit 240 of the sub-module 200. However, unlike the above-described embodiment, the ninth flow path WL9-1 may be fluidly connected to the corresponding water outflow member 230-2 described above.

[0166] Accordingly, according to this modification, when the sub-module 200 is coupled to the left side of the main module 100, the first water outflow member 150-1 and the corresponding water inlet member 230-1 may be fluidly connected. When the corresponding water outflow member 230-2 and the first water inlet member 150-2 are fluidly connected, purified water treated in the sub-module water treatment unit 240 may flow back into the main module 100 through the ninth flow path WL9-1. Therefore, the purified water that has flowed into the main module 100 may flow into the flow path control valve V through the twelfth flow path WL12.

[0167] If the sub-module 200 is coupled to the right side of the main module 100, the second water outlet member 170-1 and the corresponding water inlet member 230-1 may be fluidly connected. If the corresponding water outlet member 230-2 and the second water inlet member 170-2 are fluidly connected, purified water treated in the sub-module water treatment unit 240 may flow back into the main module 100 through the ninth flow path WL9-1. Therefore, the purified water that has flowed into the main module 100 may flow into the flow path control valve V through the thirteenth flow path WL13.

[0168] Thus, according to this modified example, the flow path of the faucet 300 is adjusted so that it receives purified water and treated purified water from the main module 100, so that the flow path between the faucet 300 and the main module 100 and the sub-module 200 can be configured more simply.

[0169] Although one embodiment of the present invention has been described above, the concept of the present invention is not limited to the embodiment presented in this specification, and a person skilled in the art who understands the concept of the present invention may easily propose other embodiments by adding, changing, deleting, or adding components within the scope of the same concept, which may also be considered to be within the scope of the concept of the present invention.

Claims

1. A modular under-sink water purifier including a main module installed inside a sink and a faucet located outside the sink, The main module a main module housing having a first coupling portion and a second coupling portion on one side and the other side, respectively, to selectively couple a portion of a sub-module that can be detachably coupled to the main module; a filter disposed within the main module housing for filtering raw water to produce purified water; and a first water outlet member and a second water outlet member provided on one side of the first coupling portion and one side of the second coupling portion, respectively, so that purified water generated by the filter can be discharged to the outside of the main module housing; The faucet is a faucet housing; and The under-sink water purifier includes a third water outlet member provided on the faucet housing so that purified water supplied from the filter can be discharged to the outside.

2. The first coupling part a first bracket having a first coupling groove into which the portion of the sub-module can be inserted; a first locking member movably coupled to the first bracket so as to be movable between a locking position in which the portion of the sub-module is locked and an unlocking position in which the portion of the sub-module is spaced apart; and a first operating member provided on one side of the first locking member so as to be able to move the first locking member; The under-sink water purifier according to claim 1 , wherein one side of the first water outlet member is located inside the first coupling groove.

3. a button exposed to the outside of the main module housing is provided on one side of the first operating member; The under-sink water purifier according to claim 2, wherein one side of the button is connected to the first operating member so that the button is pressed into the main module housing by an external force to move the first operating member.

4. an outer portion of the main module housing including a first sidewall on which the first coupling portion is provided; the first sidewall includes a first portion adjacent to the submodule coupled to the first coupling portion and a second portion provided on an edge of the first portion; the first coupling groove is disposed in the first portion of the first sidewall; The under-sink water purifier according to claim 2 , wherein the first operating member is disposed on the second portion of the first side wall.

5. The second joint is a second bracket having a second coupling groove into which the portion of the sub-module can be inserted; a second locking member movably coupled to the second bracket so as to be movable between a locking position in which the portion of the sub-module is locked and an unlocking position in which the portion of the sub-module is spaced apart; and a second operating member provided on one side of the second locking member so as to be able to move the second locking member; The under-sink water purifier according to claim 4 , wherein one side of the second water outlet member is disposed inside the second coupling groove.

6. an outer portion of the main module housing including a second sidewall on which the second coupling portion is provided; the second sidewall includes a first portion adjacent to the submodule coupled to the second coupling portion and a second portion provided on an edge of the first portion; the second coupling groove is located in the second portion of the second sidewall; The under-sink water purifier according to claim 5 , wherein the second operating member is located on the second portion of the second side wall.

7. the main module housing extends in the front-rear direction and has a box shape with the first side wall and the second side wall on both sides, the first operating member is located at a front portion of the first side wall, The under-sink water purifier according to claim 6 , wherein the second operating member is located at a rear portion of the second side wall.

8. further comprising a first sub-module disposed adjacent to the main module; The first sub-module a first sub-module housing having a first corresponding coupling portion on one side thereof so as to be selectively coupled to one of the first coupling portion and the second coupling portion; a first corresponding water inlet member provided on one side of the first corresponding coupling part so as to be selectively fluidly connected to one of the first water outlet member and the second water outlet member; and a first submodule-side water treatment unit that receives purified water from the first corresponding water inlet member and heats or cools the purified water; The under-sink type water purifier according to claim 1 , wherein the third water outlet member is configured to receive purified water cooled or heated by the first sub-module water treatment unit.

9. further comprising a second sub-module disposed adjacent to the main module; The second sub-module a second sub-module housing having a second corresponding coupling portion on one side thereof so as to be coupled to the other one of the first coupling portion and the second coupling portion; a second corresponding water inlet member provided on one side of the second corresponding coupling portion to be fluidly connected to the other one of the first water outlet member and the second water outlet member; and a second sub-module water treatment unit that receives purified water from the second corresponding water inlet member and heats or cools the purified water; The under-sink type water purifier according to claim 8, wherein the third water outlet member is configured to receive purified water cooled or heated by the second sub-module water treatment unit.

10. the first submodule water treatment unit is a chilled water generation unit for cooling purified water to generate chilled water; The under-sink water purifier according to claim 9 , wherein the second sub-module water treatment unit is a hot water production unit for heating purified water to produce hot water.

11. the main module housing includes a first side wall on which the first coupling portion is provided and a second side wall on which the second coupling portion is provided; The under-sink water purifier according to claim 1 , wherein the first side wall and the second side wall are disposed opposite each other.

12. The main module The under-sink water purifier according to claim 1 , further comprising a main module water treatment unit provided inside the main module housing to receive purified water from the filter and heat or cool it.

13. The faucet is an ice making unit that receives purified water from the filter and makes ice; and The under-sink water purifier according to claim 1, further comprising an ice discharge member for discharging the ice produced by the ice production unit to the outside.

14. The main module 2. The under-sink water purifier of claim 1, comprising a piping member including a purified water inlet portion that receives purified water from the filter, a first extension portion that extends in one direction from one side of the purified water inlet portion so as to supply purified water to the first water outlet member, and a second extension portion that extends in another direction from the one side of the purified water inlet portion so as to supply purified water to the second water outlet member.

15. 2. The under-sink type water purifier of claim 1, wherein a check valve is provided on one side of the first water outlet member and the second water outlet member to prevent purified water from being discharged outside the main module housing when the sub-module is not connected to the main module.

16. The main module a third coupling portion and a fourth coupling portion provided on the outer side of the main module housing to which other portions of the sub-module can be selectively coupled; and a first water inlet member and a second water inlet member provided on one side of the third coupling portion and one side of the fourth coupling portion, respectively, so that purified water discharged from the sub-module can enter the main module housing; the third coupling portion is spaced apart from one side of the first coupling portion, The under-sink water purifier of claim 1 , wherein the fourth coupling portion is spaced apart from one side of the second coupling portion.

17. further comprising a first sub-module disposed adjacent to the main module; The first sub-module a first sub-module housing having, on an outer side thereof, a first water inlet corresponding coupling portion selectively coupled to one of the first coupling portion and the second coupling portion and a first water outlet corresponding coupling portion selectively coupled to one of the third coupling portion and the fourth coupling portion; a first corresponding water inlet member provided on one side of the first water inlet side corresponding coupling part to be selectively fluidly connected to one of the first water inlet member and the second water inlet member; a first submodule water treatment unit that receives purified water from the first submodule water inlet member and heats or cools the purified water; and a first corresponding water outflow member provided at the first water outflow side corresponding coupling portion to be selectively fluidly connected to one of the first water inflow member and the second water inflow member so that purified water supplied from the first sub-module side water treatment unit can be outflowed to the outside of the first sub-module housing; the first water outflow side corresponding coupling portion is spaced apart from one side of the first water inflow side corresponding coupling portion; The under-sink type water purifier according to claim 16, wherein the third water outlet member is configured to receive purified water cooled or heated by the first sub-module water treatment unit.

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