Water purification filter assembly

Abstract

A water purification filter assembly includes a filter housing including a receiving member having a protrusion, and a head assembly. The protrusion can be configured to be receivable in a recessed portion on an outer peripheral surface of the filter such that when the filter is placed in the receiving member and the protrusion is received in the recessed portion, the filter is fixedly couplable to the head assembly by rotation of the filter, and when the filter is placed in the receiving member and the protrusion is not received in the recessed portion, the filter is prevented from being fixedly couplable to the head assembly.

Description

Technical Field

[0001] This disclosure relates to a water purification filter assembly including an improved structure. Background Technology

[0002] Generally, a filter assembly is a device installed on a water purifier or refrigerator and filters water through one or more water filters to provide clean water to the user. A filter assembly may include multiple filters to achieve water purification performance.

[0003] At this point, the plurality of filters are arranged to allow water flowing through the filters to flow in a specific direction.

[0004] The multiple filters can be provided with different types of filters. When replacing filters, if the filters are not assembled correctly due to user carelessness, internal leaks may occur or the overall water purification performance may be reduced. Summary of the Invention

[0005] Aspects of the embodiments of this disclosure will be set forth in part in the description which follows, and will be apparent in part from the description, or may be learned by practice of the presented embodiments.

[0006] According to one embodiment of this disclosure, a water purification filter assembly may include: a filter housing including a receiving member with a protrusion; and a head assembly. The protrusion may be configured to be received in a recess on the outer peripheral surface of the filter, such that when the filter is placed in the receiving member and the protrusion is received in the recess, the filter is securely coupled to the head assembly by rotation of the filter, and when the filter is placed in the receiving member and the protrusion is not received in the recess, the filter is prevented from being securely coupled to the head assembly.

[0007] According to one embodiment of the present disclosure, the receiving member is a first receiving member, and the water purification filter assembly further includes a second receiving member, the second receiving member including a protrusion formed differently from the protrusion of the first receiving member, wherein when a first filter having a recessed portion configured to receive the protrusion of the first receiving member is inserted into the second receiving member, the protrusion of the second receiving member prevents the first filter from being connected to the head assembly, and when a second filter having a recessed portion configured to receive the protrusion of the second receiving member is inserted into the first receiving member, the protrusion of the first receiving member prevents the second filter from being connected to the head assembly.

[0008] According to one embodiment of this disclosure, when the filter is placed in the receiving component, the recessed portion of the filter is adjacent to the head assembly.

[0009] According to one embodiment of the present disclosure, the receiving member is a first receiving member, and the water purification filter assembly further includes a second receiving member, the second receiving member including a protrusion having the same shape as the protrusion of the first receiving member, the protrusion of the second receiving member being arranged at a position relative to the second receiving member, the position being different from the position of the protrusion of the first receiving member relative to the first receiving member.

[0010] According to one embodiment of the present disclosure, the water purification filter assembly further includes a filter, wherein the filter is provided with a pair of recessed portions arranged symmetrically with respect to the longitudinal center of the filter.

[0011] According to one embodiment of the present disclosure, the receiving member further includes a peripheral member extending radially inward from the inner peripheral surface of the receiving member, wherein the protrusion extends away from the peripheral member and extends further inward from the inner peripheral surface than the peripheral member.

[0012] According to one embodiment of the present disclosure, the receiving member further includes a peripheral member extending radially inward from the inner peripheral surface of the receiving member, wherein the protrusion extends away from the peripheral member and extends further than the peripheral member along the longitudinal direction of the receiving member.

[0013] According to one embodiment of the present disclosure, the head assembly includes a mounting member coupled to the filter housing and coupled to the filter, wherein the mounting member is configured to engage with a mounting protrusion that projects radially outward from the inlet and outlet members of the filter when a protrusion of the receiving member is received in a recessed portion and the filter is rotated, such that the mounting protrusion of the filter is coupled to the interior of the mounting member.

[0014] According to one embodiment of the present disclosure, the water purification filter assembly further includes a cover member attached to the filter housing on the side opposite to the head assembly, and configured to open when the filter is placed in the receiving member to receive the filter and to close when the filter is fixedly attached to the head assembly to cover the filter handle.

[0015] According to one embodiment of the present disclosure, the cover member includes: an inner support including a receiving hole through which the filter passes when the filter is placed in the receiving member; and an outer support coupled to the inner support to open and close the receiving hole from the outside of the inner support.

[0016] According to one embodiment of the present disclosure, the outer bracket includes a doorstop that extends from an inner surface toward a handle and is configured such that the outer bracket is closable when the filter is fixedly attached to the head assembly, and the doorstop interferes with the handle when the filter is improperly received in the receiving member, making the outer bracket non-closable.

[0017] According to one embodiment of the present disclosure, the receiving member is a first receiving member, and the water purification filter assembly further includes: a second receiving member, arranged adjacent to the first receiving member and in a first direction away from the first receiving member; and a third receiving member, arranged adjacent to the first receiving member and in a second direction away from the first receiving member.

[0018] According to one embodiment of the present disclosure, each of the first receiving member, the second receiving member, and the third receiving member has a protrusion with a different configuration, which can be received in the recessed portions of different configurations of different filters.

[0019] According to one embodiment of the present disclosure, the water purification filter assembly further includes an interference rib mounted on the filter housing and projecting inwardly from the inner peripheral surface of the receiving member, wherein the interference rib is configured such that it engages with a guide groove formed on the outer peripheral surface of the filter to guide the correct placement of the filter in the receiving member, and the interference rib is pressed outwardly during insertion of the filter into the receiving member when the guide groove engaging with the interference rib is formed to be inclined relative to the direction in which the filter is inserted into the filter housing.

[0020] According to one embodiment of the present disclosure, the filter housing includes a cutout configured to allow interference ribs to protrude into the filter housing.

[0021] According to one embodiment of this disclosure, the water purification filter assembly further includes the filter.

[0022] Other embodiments of this disclosure will be set forth in part in the description which follows, and will be apparent in part from the description, or from this disclosure. Attached Figure Description

[0023] These and / or other embodiments of this disclosure will become apparent and more readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, in which:

[0024] Figure 1 This is a perspective view showing the main structure of a water purification filter assembly according to an embodiment of the present disclosure.

[0025] Figure 2 This is one embodiment of the present disclosure. Figure 1 Remove the perspective view of the frame structure.

[0026] Figure 3 This illustrates one embodiment of the present disclosure. Figure 2 An exploded perspective view of the component shown.

[0027] Figure 4This is a perspective view showing the connection relationship between a plurality of filters and head assemblies of a water purification filter assembly according to an embodiment of the present disclosure.

[0028] Figure 5 This is a front view of a filter according to one embodiment of the present disclosure.

[0029] Figure 6 This is a perspective view of the filter housing of a water purification filter assembly according to one embodiment of the present disclosure.

[0030] Figure 7 This illustrates one embodiment of the present disclosure when viewed from the rear. Figure 6 A partial perspective view of a portion of the filter housing.

[0031] Figure 8 This is a front view showing the filter and filter housing of a water purification filter assembly according to an embodiment of the present disclosure.

[0032] Figure 9 This is an embodiment of the present disclosure. Figure 8 A sectional view taken by line A-A'.

[0033] Figure 10 This is an embodiment of the present disclosure. Figure 8 The sectional view taken by line B-B'.

[0034] Figure 11 This is an embodiment of the present disclosure. Figure 8 A sectional view taken by line C-C'.

[0035] Figure 12 This is a view showing a water purification filter assembly according to an embodiment of the present disclosure, wherein the cover member is not in contact with the handle.

[0036] Figure 13 This is a view showing the state in which the cover member of a water purification filter assembly according to an embodiment of the present disclosure is in contact with the handle.

[0037] Figure 14 This is a view showing a modified example of the cover member of a water purification filter assembly according to an embodiment of the present disclosure.

[0038] Figure 15 This is an exploded perspective view showing the main structure of a water purification filter assembly according to an embodiment of the present disclosure.

[0039] Figure 16 This illustrates an embodiment of the present disclosure in which the filter is not installed. Figure 15 A partial cross-sectional view of the condition of the filter housing.

[0040] Figure 17 This illustrates one embodiment of the present disclosure in which a filter is installed to Figure 15 A partial cross-sectional view of the state of the filter housing. Detailed Implementation

[0041] The embodiments described in this disclosure and the constructions shown in the accompanying drawings are merely examples of embodiments of this disclosure, and various changes may be made in different ways to replace the embodiments and drawings of this disclosure when this application is filed.

[0042] Furthermore, the same reference numerals or symbols shown in the accompanying drawings of this disclosure denote elements or components that perform substantially the same function.

[0043] Furthermore, the terminology used herein is for describing implementation methods and is not intended to limit and / or restrict this disclosure. The singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0044] In this disclosure, the terms "comprising," "having," etc., are used to specify features, numbers, steps, operations, elements, components, or combinations thereof, but do not exclude the presence or addition of one or more features, elements, steps, operations, components, components, or combinations thereof.

[0045] It will be understood that although the terms first, second, third, etc., can be used here to describe various elements, the elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0046] For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and a second element may be referred to as a first element. The term "and / or" includes multiple combinations of related items or any one of multiple related items.

[0047] In the following detailed description, the terms “front,” “rear,” “upper,” “lower,” etc., may be defined by the accompanying drawings, but the shape and position of the parts are not limited by these terms.

[0048] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0049] Figure 1 This is a perspective view showing the main construction of a water purification filter assembly according to one embodiment of the present disclosure. Figure 2 It shows from Figure 1 Remove the perspective view of the frame structure. Figure 3 It is shown Figure 2 An exploded perspective view of the component shown.

[0050] Reference Figure 1The water purification filter assembly 1 may include a frame 10 to accommodate a plurality of filters 100 and filter housings 200. The water purification filter assembly 1 may include a cover member 300 mounted on one side of the frame 10.

[0051] The plurality of filters 100, configured to filter unpurified water, can be centrally positioned between the frame 10 and the cover member 300. The user can replace the plurality of filters 100 via the cover member 300. Related details will be described later.

[0052] Reference Figures 1 to 3 The water purification filter assembly 1 may include a filter housing 200 disposed within the frame 10.

[0053] The filter housing 200 can engage with the cover member 300 to allow the plurality of filters 100 to be individually housed therein. The plurality of filters 100 can be arranged adjacent to each other via the filter housing 200. That is, because the filters are compactly arranged, the size of the water purifier 1 can be reduced. Furthermore, it can be provided to allow the user easy removal or insertion of the plurality of filters 100. The plurality of filters 100 can be provided to be inserted into or removed from the filter housing 200.

[0054] The cover member 300 may include an inner support 310 and an outer support 320. The cover member 300 may be connected to the filter housing 200 to secure the filter and prevent it from moving.

[0055] The inner bracket 310 and outer bracket 320 may each include a recess for a handle. Furthermore, a plurality of retaining pins 340 may be provided on the inner bracket 310 to support the filter housing 200 against the cover member 300 without causing the filter housing 200 to move. Depending on the shape of the filter, the inner bracket 310 may include a circular space. Therefore, a user can access the filter through this circular space.

[0056] The water purification filter assembly 1 may include a head assembly 400 mounted on one side of the filter housing 200.

[0057] The head assembly 400 can be coupled to the plurality of filters 100 to form a flow path connecting the plurality of filters 100, thereby allowing water introduced from the outside to flow through each filter. The plurality of filters 100 can be rotatably coupled to the head assembly 400.

[0058] That is, the head assembly 400 can be coupled to each of the plurality of filters 100 and can also be coupled to the filter housing 200 surrounding the plurality of filters 100.

[0059] The water purification filter assembly 1 may include a drip tray 500.

[0060] When the water purification filter assembly 1 is used for an extended period, water flowing through the flow path may leak. Furthermore, leaks may occur when the filter is replaced. In such cases, the leaked water can be collected in the drip tray 500. The water collected in the drip tray 500 can be removed in such a way that the user can remove the water by simply removing the drip tray 500 after opening the water purification filter assembly 1.

[0061] The water purification filter assembly 1 may include a support plate 600 disposed below the drip tray 500.

[0062] The support plate 600 can be mounted on the cover member 300 to support the filter housing 200, the head assembly 400, and the drip tray 500.

[0063] The support plate 600 may include a plurality of holes that will form a conduit 430 in the head assembly 400 (in Figure 4 (As shown in the diagram) connected to the outside. The plurality of holes may include an inlet hole through which unpurified water is introduced, an outlet hole through which purified water is discharged, and a drain hole through which washing water is discharged. However, the number of the plurality of holes is not limited thereto.

[0064] According to one embodiment of the present disclosure, the water purification filter assembly 1 can be provided in a refrigerator and can be installed inside the refrigerator to allow purified water to be supplied from the refrigerator dispenser. However, the present disclosure is not limited thereto; the water purification filter assembly can be installed outside the refrigerator to supply purified water. Optionally, the water purification filter assembly 1 can be provided in a water purifier. That is, the water purification filter assembly 1 according to one embodiment of the present disclosure can be installed anywhere for the purpose of purifying water.

[0065] Figure 4 This is a perspective view showing the connection relationship between a plurality of filters and head assemblies of a water purification filter assembly according to one embodiment of the present disclosure.

[0066] Reference Figure 4 The plurality of filters 100 may include a first filter 110, a second filter 120, a third filter 130 and a fourth filter 140.

[0067] The first filter 110 and the second filter 120 may be arranged side by side in a first direction. The first filter 110 and the third filter 130 may be arranged side by side in a second direction perpendicular to the first direction. Furthermore, the fourth filter 140 and the second filter 120 may be arranged side by side in the second direction. However, the arrangement of the filters is not limited to this. It should be understood that the shapes of the filter housing 200 and the head assembly 400 for receiving the filters can vary depending on the arrangement of the filters.

[0068] Except for the recessed portions formed therein, the plurality of filters 100 can be provided in the same shape. The plurality of filters 100 can be provided in a substantially cylindrical shape. However, the shape of the filters is not limited to this.

[0069] The detailed construction of the plurality of filters 100 having the same shape will be described using the first filter 110 as an example.

[0070] The first filter 110 may include a first housing 111 and a second housing 112.

[0071] The first housing 111 can be generally formed as the upper housing of the first filter 110, and the second housing 112 can be formed as the lower housing of the first filter 110.

[0072] The first filter 110 may include a handle 113 formed on one side of the second housing 112. Specifically, the handle 113 may be formed on the bottom surface of the first filter 110. The handle 113 is provided for the user to grip when replacing the filter. Furthermore, the handle 113 also serves as an indicator, outwardly indicating whether the filter is correctly engaged with the head assembly 400. Related details will be described later.

[0073] The first filter 110 may include inlet and outlet components 114, which include openings through which water flows. In particular, the inlet and outlet components 114 may be formed within the first housing 111.

[0074] The first filter 110 may include a mounting protrusion 115 projecting radially outward from the inlet and outlet members 114. The mounting protrusion 115 may include a first member 115a, a second member 115b, and a third member 115c. The first member 115a extends radially from the inlet and outlet members 114 of the filter. The first member 115a may be formed as a flat surface. The second member 115b may extend circumferentially from the first member 115a and may be formed as a sloped surface. The third member 115c may extend radially from the inlet and outlet members 114 of the filter, but may extend to project less than the first member 115a and the second member 115b. The mounting protrusion 115 can be mounted on the mounting protrusion insertion member 413 by moving the guide 412 of the head assembly 400, which will be described subsequently.

[0075] The above configuration can also be applied to the second filter 120, the third filter 130, and the fourth filter 140.

[0076] The head assembly 400 may include a mounting component 410 and a pipe component 430.

[0077] Mounting member 410 is provided for coupling to the plurality of filters 100 and filter housing 200.

[0078] Mounting member 410 may include a first mounting member 411, a second mounting member 421, a third mounting member 431, and a fourth mounting member 441. The first mounting member 411 may be connected to the first filter 110. The second mounting member 421 may be connected to the second filter 120. The third mounting member 431 may be connected to the third filter 130, and the fourth mounting member 441 may be connected to the fourth filter 140.

[0079] Mounting member 410 may include annular ribs 414 connected to each of the first to fourth mounting members 411, 421, 431, and 441 (to which the plurality of filters 100 are coupled), thereby coupling to filter housing 200. The coupling protrusion 221 of filter housing 200 (in...) Figure 6 (As shown in the figure) The connector 415 inserted and connected thereto can be provided in multiple forms on the outside of the annular rib 414.

[0080] Since the mounting protrusion 115 of the first filter 110 has been described above, the mounting member 410 will be described in detail using the first mounting member 411 as an example.

[0081] The first mounting member 411 of the head assembly 400 may include a guide 412 and a mounting protrusion insertion member 413. The guide 412 and the mounting protrusion insertion member 413 may be coupled to a mounting protrusion 115 that projects radially from the inlet and outlet members 114 of the first filter 110.

[0082] Specifically, the guide 412 can be tilted from the inside of the mounting member 410 toward the conduit 430 to allow the mounting protrusion 115 of the first filter 110 to rotate and engage with the inside of the head assembly 400 in response to the insertion of the mounting protrusion 115 into the head assembly 400.

[0083] The mounting protrusion insertion member 413 may be formed as a flat surface along the radial direction of the mounting member 410 to allow the mounting protrusion 115, which is guided to rotate along the guide member 412, to be inserted therein.

[0084] Since the guide 412 protrudes further inward than the mounting protrusion insertion member 413 in the radial direction of the mounting member 410, the guide 412 and the mounting protrusion insertion member 413 can be provided in a shape with a step difference.

[0085] The above-described configuration can also be applied to the second mounting member 421, the third mounting member 431, and the fourth mounting member 441.

[0086] The mounting protrusion 115 of the first filter 110 is described below as being mounted on the first mounting member 411.

[0087] The first member 115a of the mounting protrusion 115 of the first filter 110 can rotate and pass through the guide 412 of the first mounting member 411, and then be mounted on the mounting protrusion insertion member 413. Since the second member 115b includes an inclined surface, the surface passing through the guide 412 can be the second member 115b of the mounting protrusion 115.

[0088] In response to the first filter 110 being correctly engaged with the first mounting member 411, the third member 115c of the mounting protrusion 115 contacts the guide 412. Thus, the first member 115a and the second member 115b of the mounting protrusion 115 are positioned at the mounting protrusion insertion member 413.

[0089] At the moment the first filter 110 is inserted into the first mounting member 411, after rotating approximately 90 degrees, the first filter 110 can be connected to the first mounting member 411 in the correct position.

[0090] Figure 5 This is a front view of a filter according to one embodiment of the present disclosure. Figure 6 This is a perspective view showing the filter housing of a water purification filter assembly according to one embodiment of the present disclosure. Figure 7 This shows what it looks like when viewed from the rear. Figure 6 A partial perspective view of a portion of the filter housing.

[0091] Reference Figure 5 Each of the plurality of filters 100 may include a recessed portion. Each recessed portion may be formed in a shape and position corresponding to each protrusion of the filter housing 200, which will be described later.

[0092] The first filter 110 may include a first recessed portion 116. The second filter 120 may include a second recessed portion 126. The third filter 130 may include a third recessed portion 136. Furthermore, the fourth filter 140 may include a fourth recessed portion 146.

[0093] In the following description, as an example, a first recessed portion 116 formed in the first filter 110 will be described. The first recessed portion 116 may be recessed inward along the rotational direction of the first filter 110. That is, the first recessed portion 116 may be formed along the circumferential direction of the first filter 110.

[0094] The first recessed portion 116 can be provided as a pair symmetrical with respect to the center C of the first filter 110.

[0095] However, this disclosure is not limited thereto, and the first recessed portion 116 may be varied, as long as the first recessed portion 116 does not interfere with the first protrusion 241, which will be described later.

[0096] Furthermore, the position where the first recessed portion 116 is formed relative to the first filter 110 along the direction in which it is inserted can be formed in the front portion of the first filter 110.

[0097] However, this disclosure is not limited thereto, and the first recessed portion 116 may be formed on the side surface or rear portion of the first filter 110. It should be understood that the position of the protrusion of the filter housing 200 may vary depending on the position of the first recessed portion 116.

[0098] The second recessed portion 126, the third recessed portion 136, and the fourth recessed portion 146 can also be formed in the same manner as the first recessed portion 116 described above.

[0099] At a position of a first radius d1 from the center C of the first filter 110, the first recessed portion 116 can be recessed into the first filter 110.

[0100] At a position of a second radius d2 from the center C of the second filter 120, the second recessed portion 126 can be recessed into the second filter 120.

[0101] At a position of the third radius d3 from the center C of the third filter 130, the third recessed portion 136 can be recessed into the third filter 130.

[0102] At a position of the fourth radius d4 from the center C of the fourth filter 140, the fourth recessed portion 146 can be recessed into the fourth filter 140.

[0103] In this implementation, the first radius d1 is greater than the second radius d2, and the second radius d2 is greater than the third radius d3. The second radius d2 can be the same as the fourth radius d4.

[0104] Because the recessed portions are formed at different starting positions, the protrusions (described later) of the filter housing 200 can also have different shapes. Therefore, by identifying the connection position according to the type of filter, incorrect assembly can be prevented.

[0105] However, the relationship between the first radius d1 and the fourth radius d4 is not limited to this.

[0106] In the embodiments, it is described that the second filter 120 and the fourth filter 140 are provided with the same type of composite filter, and the second recessed portion 126 formed in the second filter 120 is the same as the fourth recessed portion 146 formed in the fourth filter 140. However, this disclosure is not limited thereto, and each filter can be provided as a different type of filter, and therefore each recessed portion can also be formed in a different shape or in a different location.

[0107] Reference Figure 6 and Figure 7 The plurality of protrusions and the plurality of receiving members 210 formed in the filter housing 200 are described.

[0108] The filter housing 200 may include a receiving member 210.

[0109] The filter housing 200 may include a first receiving member 211 for receiving a first filter 110, a second receiving member 212 for receiving a second filter 120, a third receiving member 213 for receiving a third filter 130, and a fourth receiving member 214 for receiving a fourth filter 140.

[0110] The first filter 110 can be inserted into or removed from the first receiving member 211. The first receiving member 211 may include a first protrusion 241 (see reference). Figure 7 The first protrusion 241 is provided in a shape corresponding to the first recessed portion 116 of the first filter 110.

[0111] The first receiving member 211 may include a peripheral member 250 extending radially inward from the inner peripheral surface of the first receiving member 211.

[0112] The second filter 120 can be inserted into or removed from the second receiving member 212. The second receiving member 212 may include a second protrusion 242 provided in a shape corresponding to the second recessed portion 126 of the second filter 120.

[0113] The third filter 130 can be inserted into or removed from the third receiving member 213. The third receiving member 213 may include a third protrusion 243 provided in a shape corresponding to the third recess 136 of the third filter 130.

[0114] The fourth filter 140 can be inserted into or removed from the fourth receiving member 214. The fourth receiving member 214 may include a fourth protrusion 244 provided in a shape corresponding to the fourth recess 146 of the fourth filter 140.

[0115] In the implementation, it is described that each receiving member 210 is provided with two first, second and fourth protrusions 241, 242 and 244, and four third protrusions 243, but the number of each type of protrusion is not limited thereto.

[0116] In addition, the filter housing 200 may include a residual water hole 215 at the bottom. Water leaking through the residual water hole 215 can move and be collected in the drip tray 500.

[0117] The filter housing 200 may include a head mounting member 220.

[0118] The head mounting member 220 can be connected to the receiving member 210 and is provided on one side of the filter housing 200. The head mounting member 220 may include a plurality of coupling protrusions 221 for connecting the head assembly 400 and the filter housing 200. In addition, the head mounting member 220 may be integrally formed with the receiving member 210.

[0119] The plurality of connecting protrusions 221 may extend from the head mounting member 220 toward the head assembly 400 in the longitudinal direction of the filter. Figure 6 The diagram shows a total of 16 connecting protrusions 221, but their number and shape are not limited to this.

[0120] The filter housing 200 may include a cover member connector 230.

[0121] A cover member connector 230 may be provided on the other side of the filter housing 200 to connect the cover member 300 to the filter housing 200. The cover member connector 230 is received in the inner bracket 310 to allow the filter housing 200 to be coupled to the cover member 300.

[0122] In the embodiments, it is described that the second filter 120 and the fourth filter 140 are provided with the same type of composite filter, and the second protrusion 242 formed in the second receiving member 212 is the same as the fourth protrusion 244 formed in the fourth receiving member 214. However, this disclosure is not limited thereto, and each filter can be provided as a different type of filter, and therefore each protrusion can also be formed in a different shape or in a different location.

[0123] also, Figure 7 A portion of the filter housing 200 is shown, but Figure 7 The portion shown can be provided as a component that is separate from the filter housing 200 and then connected to the filter housing 200.

[0124] Figure 8 This is a front view of the filter and filter housing of a water purification filter assembly according to one embodiment of the present disclosure. Figure 9 It is along Figure 8 A sectional view taken by line A-A'. Figure 10 It is along Figure 8 The sectional view taken by line B-B'. Figure 11 It is along Figure 8 A sectional view taken by line C-C'.

[0125] Reference Figures 8 to 11 The relationship between recesses formed in different shapes in each filter and protrusions formed in the filter housing 200 is described. The second filter 120 and the fourth filter 140 are filters of the same type, and the accompanying drawings and descriptions of the fourth filter 140 are the same as those of the second filter 120.

[0126] Reference Figure 8 and Figure 9 The first filter 110 may be provided to be received in the first receiving member 211.

[0127] The first filter 110 may include a filter body provided within a housing to filter out impurities from unpurified water.

[0128] The first filter 110 may include inlet and outlet members 114 and a vertical member 118 extending in the longitudinal direction of the first filter 110. In addition, the first filter 110 may include an inclined member 117, which is provided to connect the inlet and outlet members 114 to the vertical member 118.

[0129] The first recessed portion 116 may be formed in the inclined member 117 of the first filter 110. The first recessed portion 116 may be formed by recessing from the outside to the inside of the first filter 110 to have two steps. The first recessed portion 116 may be recessed from a position away from the center C of the first filter 110 and away from the first radius d1.

[0130] The filter housing 200 may include a first protrusion 241 formed in the first receiving member 211.

[0131] The inner circumferential surface of the filter housing 200 may extend partially from the head mounting member 220 toward the longitudinal direction of the first filter 110. Furthermore, the filter housing 200 may include a peripheral member 250 extending radially inward from the inner circumferential surface.

[0132] The first protrusion 241 may extend along the longitudinal direction of the first filter 110. The first protrusion 241 may be provided to extend further in the longitudinal direction than the peripheral member 250. That is, the height from the upper surface of the peripheral member 250 to the lowermost surface of the first protrusion 241 may be referred to as the first height h1, and the first height h1 may be greater than the thickness of the peripheral member 250.

[0133] In response to the first recessed portion 116 being recessed at a position of a first radius d1 from the center C of the first filter 110, the first protrusion 241 may protrude from the inner peripheral surface at a position of a first radius d1 from the center C, or at a position of a distance from the center C greater than the first radius d1 from the inner peripheral surface.

[0134] Reference Figure 8 and Figure 10 The second filter 120 can be provided to be received in the second receiving member 212.

[0135] The second filter 120 may include inlet and outlet members 114 and a vertical member 118 extending in the longitudinal direction of the second filter 120. In addition, the second filter 120 may include an inclined member 117, which is provided to connect the inlet and outlet members 114 to the vertical member 118.

[0136] The second recessed portion 126 can be formed in the inclined member 117 of the second filter 120. The second recessed portion 126 can be formed by recessing from the outside to the inside of the second filter 120 to have a step difference. The second recessed portion 126 can be recessed from a position at a second radius d2 away from the center C of the second filter 120.

[0137] The filter housing 200 may include a second protrusion 242 formed in the second receiving member 212.

[0138] The inner circumferential surface of the filter housing 200 can extend partially from the head mounting member 220 toward the longitudinal direction of the second filter 120.

[0139] The second protrusion 242 may extend radially inward from the inner peripheral surface. The second protrusion 242 may be provided to extend further inward than the outer member 250.

[0140] The height from the upper surface of the outer member 250 to the lowermost surface of the second protrusion 242 can be referred to as the second height h2, and the second height h2 can be formed to be greater than the thickness of the outer member 250.

[0141] In response to the second recessed portion 126 being recessed at a position of a second radius d2 at a distance from the center C of the second filter 120, the second protrusion 242 may protrude from the inner peripheral surface at a position of a distance of a second radius d2 at a distance from the center C, or protrude from the inner peripheral surface at a distance from the center C greater than the second radius d2.

[0142] Reference Figure 8 and Figure 11 The third filter 130 can be provided to be received in the third receiving member 213.

[0143] The third filter 130 may include inlet and outlet members 114 and a vertical member 118 extending in the longitudinal direction of the second filter 120. Furthermore, the third filter 130 may include an inclined member 117 provided to connect the inlet and outlet members 114 to the vertical member 118.

[0144] The third recessed portion 136 can be formed in the inclined member 117 of the third filter 130. The third recessed portion 136 can be formed by recessing from the outside to the inside of the third filter 130 to have a step difference. The third recessed portion 136 can be recessed from a position at a third radius d3 away from the center C of the third filter 130.

[0145] The filter housing 200 may include a third protrusion 243 formed in the third receiving member 213.

[0146] The inner circumferential surface of the filter housing 200 can extend partially from the head mounting member 220 toward the longitudinal direction of the third filter 130.

[0147] The third protrusion 243 may extend radially inward from the inner circumferential surface. The third protrusion 243 may be provided to extend further inward than the outer member 250.

[0148] The height from the upper surface of the outer member 250 to the lowermost surface of the third protrusion 243 can be referred to as the third height h3, and the third height h3 can be formed to be less than the thickness of the outer member 250.

[0149] In response to the third recess 136 being recessed at a position of a third radius d3 from the center C of the third filter 130, the third protrusion 243 may protrude from the inner peripheral surface at a position of a third radius d3 from the center C, or at a position of a distance from the center C greater than the third radius d3.

[0150] Therefore, as Figures 9 to 11 As shown, the first recessed portion 116, the second recessed portion 126, and the third recessed portion 136 are formed at different distances from the center C of the filter. That is, the first radius d1 is formed to be larger than the second radius d2, and the second radius d2 is formed to be larger than the third radius d3. In other words, the third recessed portion 136 can be formed closest to the center C of the filter, followed by the second recessed portion 126 and the first recessed portion 116 in sequence.

[0151] The first protrusion 241, the second protrusion 242, and the third protrusion 243 may have different heights from the upper surface of the outer member 250 to the lowermost surface of each protrusion.

[0152] That is, the first height h1 can be greater than the second height h2, and the second height h2 can be greater than the third height h3. In other words, the first protrusion 241 can be formed as the thickest, and the third protrusion 243 can be formed as the thinnest. This indicates that the shape of each protrusion is different.

[0153] The shape of the first recess 116 corresponds to the shape of the first protrusion 241, the shape of the second recess 126 corresponds to the shape of the second protrusion 242, and the shape of the third recess 136 corresponds to the shape of the third protrusion 243, so that each filter can be connected to the head assembly 400 only at a predetermined position.

[0154] In response to the insertion of the second filter 120 into the first receiving member 211, the second recess 126 formed in the second filter 120 may interfere with the first protrusion 241 formed in the first receiving member 211, thereby preventing the second filter 120 from being coupled to the head assembly 400.

[0155] The first height h1 of the first protrusion 241 is the largest, so that in response to the insertion of the second filter 120, the third filter 130 or the fourth filter 140 into the first receiving member 211, each filter can be prevented from being inserted into the position where it is connected to the head assembly 400.

[0156] In response to the insertion of the first filter 110 into the second receiving member 212, the first recess 116 formed in the first filter 110 may interfere with the second protrusion 242 formed in the second receiving member 212, thereby preventing the first filter 110 from being coupled to the head assembly 400.

[0157] The second protrusion 242 has a second height h2, and the first protrusion 241 has a first height h1 greater than the second height h2. Therefore, since the first recessed portion 116 is deeply recessed, it does not interfere with the second protrusion 242. However, since the second protrusion 242 protrudes from the inner circumferential surface at a position of a second radius d2 from the center C of the filter, it protrudes more inwardly than the first protrusion 241 relative to the radial direction of the filter. Therefore, the second protrusion 242 prevents the first filter 110 from being inserted into the second receiving member 212 and prevents the first filter 110 from being coupled to the head assembly 400.

[0158] In the same manner as above, the interference of the second protrusion 242 can prevent the third filter 130 (including the third recess 136 with a relatively small depth) from being inserted into the second receiving member 212 and prevent the third filter 130 from being coupled to the head assembly 400.

[0159] Therefore, the plurality of filters 100 include a plurality of recessed portions corresponding to a plurality of protrusions formed in the receiving member 210 of the filter housing 200 that receives each filter. Thus, when replacing the filters, it is possible to prevent the filters from being assembled in a position other than the designated position.

[0160] By preventing improper assembly of the filter, internal leakage of the water purification filter assembly 1 or reduction in water purification performance can be prevented.

[0161] Furthermore, by creating a recessed section that identifies the type of filter and specifies the manufacturer, the use of counterfeit products can be prevented.

[0162] A water purification filter assembly according to one embodiment of the present disclosure is shown and described as including recesses formed in the filter and protrusions formed in the filter housing, but is not limited thereto. It should be understood that recesses may be formed in the filter housing and protrusions may be formed in the filter.

[0163] Figure 12 This is a view showing a water purification filter assembly according to one embodiment of the present disclosure, wherein the cover member is not in contact with the handle. Figure 13 This is a view showing the state in which the cover member of a water purification filter assembly according to one embodiment of the present disclosure is in contact with the handle. Figure 14 This is a view illustrating a modified example of the cover member of a water purification filter assembly according to one embodiment of the present disclosure.

[0164] Reference Figure 12 and Figure 13 The cover component 300 may include an inner support 310 and an outer support 320.

[0165] The inner support 310 includes a plurality of insertion holes through which handles 113 formed on the bottom surface of the plurality of filters 100 pass. The outer support 320 is coupled to the inner support 310 so as to open and close from the outside of the inner support 310.

[0166] The outer bracket 320 can be rotatably connected to the inner bracket 310 via the hinge 330.

[0167] The outer support 320 may include a door stop 322. The door stop 322 may include a first block 322a and a second block 322b.

[0168] The first piece 322a and the second piece 322b may extend in one direction. However, the direction of extension is not limited to this, and they may extend in various directions depending on the connection method or connection direction of the filter and head assembly 400. In addition, the first piece 322a and the second piece 322b may protrude and extend toward the handle 113.

[0169] The outer support 320 may also include a mounting member 323 formed between the protruding first piece 322a and second piece 322b. The mounting member 323 may be within the space between the first piece 322a and second piece 322b. The filter handle 113 may contact the mounting member 323.

[0170] In other words, the filter handle 113 can be arranged to face the mounting member 323. Furthermore, the filter handle 113 can be provided to be received within the mounting member 232. The filter handle 113 can be provided to be mounted on the mounting member 232.

[0171] The door stop 322 may be provided with only the first piece 322a or only the second piece 322b.

[0172] The door stop 322 can be arranged to face the handle 113 of the filter. That is, at the position where the front surface of the handle 113 facing the door stop 322 faces the mounting member 323 of the outer bracket 320, a portion of the side surface of the handle 113 and the door stop 322 can be parallel to each other. The side surface of the handle 113 is a surface that extends from the front surface of the handle 113 toward the filter in a longitudinal direction.

[0173] The structure of the cover member 300 described above is not limited to this; the cover member 300 may consist only of the outer support 320. Optionally, the cover member 300 may be formed on the frame 10 or the filter housing 200, and may be formed to include an inner support 310.

[0174] like Figure 12 As shown, in response to the filter not being fully rotated and not being connected to the head assembly 400, the door stop 322 and the handle 113 may not contact each other.

[0175] That is, in response to the plurality of filters 100 not being inserted into the corresponding designated receiving member 210, the filter may not be fully rotated, such as Figure 12 As shown. Although not shown in the accompanying drawings, the filter may protrude toward the cover member 300.

[0176] Specifically, the handle 113 may not contact the mounting member 323 of the outer bracket 320. In this case, the door stop 322 can interfere with the handle 113, thus preventing the outer bracket 320 from being closed. At this point, the user can confirm from the outside of the water purification filter assembly 1 that the connection has not been performed correctly.

[0177] like Figure 13 As shown, in response to the filter fully rotating and being connected to the head assembly 400, the door stop 322 and the handle 113 can come into contact with each other.

[0178] That is, this is the state in which all of the plurality of filters 100 are correctly inserted into each designated receiving member 210 and the filters and head assembly 400 are engaged in place. In this case, the handles 113 are all aligned in the same direction. In particular, the handles 113 are aligned with the extension direction of the door stop 322.

[0179] At this point, the handle 113 contacts the mounting member 323 of the outer bracket 320. In this situation, the door stop 322 does not interfere with the handle 113, and therefore the outer bracket 320 can be closed. Thus, the user can recognize that the filter and head assembly 400 are correctly connected to each other.

[0180] like Figure 14 As shown, the door stop 322 may include a shape in which the middle portion is curved. In particular, the mounting member 323 may include an intermediate member 323a and an outer member 323b.

[0181] Because the middle portion of the door stop 322 includes a curved shape, the middle member 323a of the mounting member 323 can be formed to be narrower than the outer member 323b.

[0182] The width of the intermediate member 323a can be the same as the width of the handle 113, and the width of the mounting member 323 can increase toward the outer member 323b. That is, the mounting member 323 can include free space in which the cover member 300 is connected to the filter to limit water leakage.

[0183] Figure 15 This is an exploded perspective view of the main structure of a water purification filter assembly according to another embodiment of the present disclosure. Figure 16 It shows that the filter is not installed. Figure 15 A partial cross-sectional view of the condition of the filter housing. Figure 17 This shows where the filter is installed. Figure 15 A partial cross-sectional view of the state of the filter housing.

[0184] Reference Figure 15 According to another embodiment of the present disclosure, a water purification filter assembly may include a filter housing 200a, a plurality of filters 100a inserted into the filter housing 200a, and an interference rib 700 mounted on the filter housing 200a.

[0185] In the following description, the differences from a water purification filter assembly according to one embodiment of the present disclosure will be described primarily, while other components may be described using the same reference numerals as those used in a water purification filter assembly according to one embodiment of the present disclosure.

[0186] Filter housing 200a can be connected to cover member 300 (see reference) Figure 3The filters 100a are joined to allow each of the plurality of filters 100a to be housed therein. The plurality of filters 100a can be arranged adjacent to each other via the filter housing 200a. That is, the size of the water purifier can be reduced due to the compact arrangement of the filters. Furthermore, the plurality of filters 100a can be provided to allow easy removal or insertion by a user. The plurality of filters 100a can be provided to be inserted into or removed from the filter housing 200a, and can be the same as the plurality of filters in the water purification filter assembly according to the foregoing embodiments of this disclosure.

[0187] Unlike the water purification filter assembly of the foregoing embodiments of the present disclosure, in another embodiment of the water purification filter assembly of the present disclosure, the interference rib 700 may be mounted on the side surface of the filter housing 200a.

[0188] The filter housing 200a may include a cutout 260, the cutout 260 being formed therein receiving a first receiving member 211 in which the first filter 110a is received (see reference). Figure 6 The third receiving member 213 (see reference) is formed therein, in which the third filter 130a is received. Figure 6 )middle.

[0189] The cut 260 may include a first cut 261 and a second cut 262. The first cut 261 may be formed in a first receiving member 211 that receives the first filter 110a. The second cut 262 may be formed in a third receiving member 213 that receives the third filter 130a.

[0190] The first cut 261 and the second cut 262 can be formed on the side of the filter housing 200a. However, the position of the cut 260 is not limited to this and can be changed according to the mounting position of the interference rib 700. The cut 260 can be provided in a shape corresponding to the shape of the interference rib 700. In particular, the cut 260 can be provided in a shape corresponding to the first extension 702 and the second extension 703 of the interference rib 700.

[0191] The filter housing 200a may include a fastening member connector 270 formed between a first cut 261 and a second cut 262. Since a separate fastening member 710 is connected to the fastening member connector 270, an interference rib 700 can be connected to the filter housing 200a. However, the position of the fastening member connector 270 can also be changed depending on the position of the interference rib 700.

[0192] The interference rib 700 may include a fastener 701. When the fastening member 710 is connected to the fastener 701 of the interference rib 700 and the fastening member connector 270 of the filter housing 200a, the interference rib 700 and the filter housing 200a can be connected to each other. The fastener 701 may be formed in the generally central portion of the interference rib 700.

[0193] The interference rib 700 may include a first extension 702 and a second extension 703 extending from the fastener 701 along the outer peripheral surface of the filter housing 200a. Specifically, the first extension 702 may extend upward along the outer peripheral surface of the first receiving member 211 of the filter housing 200a. The second extension 703 may extend downward along the outer peripheral surface of the third receiving member 213 of the filter housing 200a.

[0194] The interference rib 700 may include a first interference member 704 projecting from the first extension 702 toward the interior of the filter housing 200a. The first interference member 704 may be provided in a direction substantially perpendicular to the first extension 702. The interference rib 700 may include a second interference member 705 projecting from the second extension 703 toward the interior of the filter housing 200a. The second interference member 705 may be provided in a direction substantially perpendicular to the second extension 703.

[0195] Two first interference members 704 are provided on the upper part of the interference rib 700, and a single second interference member 705 is provided on the lower part of the interference rib 700. Therefore, incorrect assembly of the first filter 110a and the third filter 130a can be prevented. The relationship between the plurality of filters 100a and the interference rib 700 will be described later.

[0196] The interference rib 700 can be formed of an elastic material. Therefore, in response to an external force applied from the inside of the filter housing 200a toward the interference rib 700, the interference rib 700 can deform in shape and be pushed out of the filter housing 200a. Details related to this will be described later.

[0197] The first filter 110a may include a first guide groove 119. The first guide groove 119 may be provided in a shape corresponding to the first interference member 704 of the interference rib 700. The first guide groove 119 may be formed in the first housing 111a of the first filter 110a. However, the position of the first guide groove 119 is not limited thereto and may be changed depending on the position of the interference rib 700. Since two first interference members 704 of the interference rib 700 are provided, two first guide grooves 119 may also be provided.

[0198] The third filter 130a may include a second guide groove 139. The second guide groove 139 may be provided in a shape corresponding to the second interference member 705 of the interference rib 700. Since a single second interference member 705 is provided for the interference rib 700, a single second guide groove 139 may be provided depending on the number of second interference members.

[0199] The first interference member 704 of the interference rib 700 can be pushed out of the filter housing 200a by being squeezed by the first filter 110a, and the second interference member 705 can be pushed out of the filter housing 200a by being squeezed by the third filter 130a. Related details will be described later.

[0200] The first guide groove 119 and the second guide groove 139 can be provided to be inclined along the insertion direction of the first filter 110a and the third filter 130a. Specifically, the first guide groove 119 and the second guide groove 139 can be provided to be inclined relative to the side surfaces of the first filter 110a and the third filter 130a. That is, the first guide groove 119 and the second guide groove 139 can be provided relative to the vertical member 118 (see reference 118) of the first filter 110a and the third filter 130a. Figure 9 )tilt.

[0201] Reference Figure 16 In response to the plurality of filters 100a not being inserted into the filter housing 200a, the interference rib 700 may protrude into the interior of the filter housing 200a. Specifically, the interference rib 700 may be inserted into the filter housing 200a through a cut 260 formed in the filter housing 200a. The first interference member 704 of the interference rib 700 may protrude into the interior of the filter housing 200a through the first cut 261. The second interference member 705 of the interference rib 700 may protrude into the interior of the filter housing 200a through the second cut 262.

[0202] Reference Figure 17 In response to the insertion of the first filter 110a and the third filter 130a into the filter housing 200a, the interference rib 700 can be moved to the outside of the filter housing 200a.

[0203] Specifically, since the first guide groove 119 formed in the first filter 110a is provided inclined relative to the insertion direction of the first filter 110a, the first interference member 704 of the interference rib 700 can be pressed along the inclined surface of the first guide groove 119 to the outside of the filter housing 200a. Thereafter, in response to the first filter 110a being rotated and coupled to the head assembly 400 (see reference...), Figure 4 Mounting component 410 (refer to) Figure 4 The interference rib 700 can be kept in a state of being pressed by the outer peripheral surface of the first housing 111a of the first filter 110a, and thus kept in a state of being pushed to the outside of the filter housing 200a.

[0204] Furthermore, since the second guide groove 139 formed in the third filter 130a is provided inclined relative to the insertion direction of the third filter 130a, the second interference member 705 of the interference rib 700 can be pressed against the outside of the filter housing 200a along the inclined surface of the second guide groove 139. Thereafter, in response to the third filter 130a being rotated and coupled to the mounting member 410 of the head assembly 400, the interference rib 700 can remain in a state of being pressed against the outer peripheral surface of the third filter 130a, and thus remain in a state of being pushed against the outside of the filter housing 200a. The interference rib 700 can be formed of an elastic material, and such shape deformation is possible.

[0205] In response to a filter other than the first filter 110a being inserted into the first receiving member of the filter housing 200a, the insertion of such filter can be prevented by the first interference member 704 of the interference rib 700. Furthermore, in response to a filter other than the third filter 130a being inserted into the third receiving member 213, the insertion of such filter can be prevented by the second interference member 705 of the interference rib 700.

[0206] Therefore, since the interference rib 700 is mounted on the outside of the filter housing 200a and protrudes inward, inaccurate assembly of the filter can be prevented more reliably. Specifically, incorrect assembly of the plurality of filters 100a can be initially prevented by the interference rib 700, and by the protrusions 241, 242, 243 and 244 formed in the filter housing 200a (see reference 1000a). Figure 7 ) and recesses 116, 126, 136 and 146 formed in the filter (see reference) Figure 8 It was prevented a second time.

[0207] In the description of this disclosure, the interference rib 700 is provided to guide the installation of the first filter 110a and the third filter 130a, and to interfere with the installation of the second filter 120 and the fourth filter 140, but is not limited thereto. Optionally, the interference rib 700 may be installed on the side where the second filter 120 and the fourth filter 140 are inserted. Furthermore, the position of the cutout 260 in the filter housing 200a may be changed depending on the position of the interference rib 700. Additionally, when the interference rib 700 is provided in a structure guiding the insertion of the second filter 120 and the fourth filter 140, and in a structure preventing incorrect assembly of the first filter 110a and the third filter 130a, the aforementioned first guide groove 119 and second guide groove 139 may be formed in the second filter 120 and the fourth filter 140.

[0208] Furthermore, as another embodiment for preventing improper assembly of the filters, inlet and outlet members 114 of different diameters provided in each of the plurality of filters 100a (see reference) can be formed. Figure 4 To prevent incorrect assembly, the diameters of the inlet and outlet members 114 of the plurality of filters 100a are formed to be different from each other, so the diameter of the mounting member 410 of the head assembly 400 can also be formed to be different from each other depending on the diameters of the inlet and outlet members. In this case, the individual filters 110, 120, 130 and 140 may not include recessed portions, and the filter housing 200 may not include protrusions. Therefore, by forming inlet and outlet portions 114 with different diameters, incorrect assembly between the plurality of filters 100 and 100a can be prevented with a simple structure.

[0209] When replacing the filter, you can simply place the corresponding filter in the predetermined position, because the recessed portion is formed in the filter and the protrusion is formed in the filter housing.

[0210] This can prevent the filter from being improperly assembled due to user negligence, thereby preventing a decline in the performance of the water purification filter assembly.

[0211] By utilizing the recessed portion of the filter, the type of filter can be identified and the use of counterfeit products can be prevented.

[0212] One aspect of this disclosure provides a water purification filter assembly including a filter, a filter housing, and a head assembly. The filter housing includes a receiving member for receiving the filter, and the head assembly is mounted on one side of the filter housing and coupled to the filter. The filter includes a recess formed on its outer peripheral surface. The receiving member includes a protrusion formed in a shape corresponding to the recess. The filter is securely coupled to the head assembly at locations where the recess and the protrusion engage with each other.

[0213] The filter can be a first filter, the receiving member can be a first receiving member, and the water purification filter assembly can further include a second filter, the second filter including a recessed portion formed in a different shape than the recessed portion of the first filter. In response to the second filter being inserted into the first receiving member, a protrusion can prevent the second filter from engaging with the head assembly.

[0214] The recessed portion can be formed on the side near the head assembly, relative to the longitudinal direction of the filter.

[0215] The filter can be a first filter, and the receiving member can be a first receiving member. The water purification filter assembly may also include a second filter, which includes a recessed portion formed with the same shape as the recessed portion of the first filter but at a different location than the recessed portion of the first filter.

[0216] The recessed portion can provide a pair of recessed portions that are symmetrical with respect to the center of the filter.

[0217] The receiving member may also include a peripheral member extending radially inward from the inner peripheral surface. The protrusion may extend further inward from the inner peripheral surface than the peripheral member.

[0218] The receiving member may also include a peripheral member extending radially inward from the inner circumferential surface, and the protrusion may extend further than the peripheral member along the longitudinal direction of the filter.

[0219] The head assembly may include a mounting member that attaches to the filter and the filter housing. The filter may include: inlet and outlet members, including openings that allow water to flow through them; and mounting protrusions that project radially outward from the inlet and outlet members. In response to rotation of the filter, the mounting protrusions may engage with the interior of the mounting member.

[0220] The filter may include a handle provided on one side of the filter, and the water purification filter assembly may also include a cover member coupled to the filter housing to receive and cover the handle.

[0221] The cover component may include an inner support and an outer support, the inner support including a receiving hole through which a handle passes, and the outer support being coupled to the inner support to open and close the receiving hole from the outside of the inner support.

[0222] The outer bracket may include a doorstop extending from the inner surface toward the handle, and in response to the filter being improperly assembled to the head assembly, the doorstop will interfere with the handle, so the outer bracket cannot be closed.

[0223] The filter may be a first filter, and the water purification filter assembly may further include a second filter arranged in a first direction relative to the first filter and a third filter arranged in a second direction different from the first direction relative to the first filter. The filter housing may include a first receiving member for receiving the first filter, a second receiving member for receiving the second filter, and a third receiving member for receiving the third filter.

[0224] The recessed portions formed in the first to third filters can be provided in different shapes.

[0225] The water purification filter assembly may also include interference ribs mounted on the filter housing and projecting inward. The filter may include guide grooves formed at an angle relative to the direction in which the filter is inserted into the filter housing and provided to push the interference ribs outward in response to the filter being inserted into the filter housing.

[0226] The filter housing may include a cutout provided to allow interference ribs to be inserted into the filter housing.

[0227] Another aspect of this disclosure provides a water purification filter assembly comprising: a first filter; a second filter disposed relative to the first filter in a first direction; a third filter disposed relative to the first filter in a second direction different from the first direction; and a filter housing including a plurality of receiving members provided to allow insertion and removal of the first to third filters therein. Each of the plurality of receiving members includes a protrusion. A recessed portion comprising a shape corresponding to each protrusion is formed on the outer peripheral surface of each of the first, second, and third filters.

[0228] The recesses formed in the first filter, second filter, and third filter can be a first recess, a second recess, and a third recess, respectively. The first recess, second recess, and third recess can be provided with different shapes to prevent incorrect assembly of the filters.

[0229] The water purification filter assembly may also include an interference rib mounted on the filter housing and including an interference member projecting toward the receiving member of the first filter. The first filter may include a guide groove with an inclined surface to press the interference member outward. In response to the insertion of a second or third filter into the receiving member of the first filter, the interference member can prevent improper assembly of the filters.

[0230] Another aspect of this disclosure provides a water purification filter assembly, comprising: a filter including a recessed portion, a guide groove, and a handle; a filter housing including a receiving member for receiving the filter and a protrusion formed in a shape corresponding to the recessed portion; a head assembly mounted on one side of the filter housing and coupled to the filter; an interference rib mounted to the filter housing and including an interference member protruding toward the receiving member and formed in a shape corresponding to the guide groove; and a cover member disposed on the opposite side of the filter housing to the head assembly, the cover member including a door stop to which the handle is mounted. When the filter is inserted into the filter housing and the guide groove passes through the interference rib and the protrusion is mounted to the recessed portion, the filter is fixedly coupled to the head assembly, the handle contacts the door stop, and the cover member is closed, thereby completing the assembly of the filter.

[0231] The filter can be a first filter, and the water purification filter assembly can further include a second filter arranged in a first direction relative to the first filter and a third filter arranged in a second direction different from the first direction relative to the first filter. The recesses formed in the first filter, second filter, and third filter can be a first recess, a second recess, and a third recess, respectively. The first recess, second recess, and third recess can be provided with different shapes to prevent incorrect assembly of the filters.

[0232] Although this disclosure has been specifically described with reference to exemplary embodiments, those skilled in the art will understand that various changes in form and detail may be made without departing from the spirit and scope of this disclosure.

[0233] Cross-references to related applications

[0234] This application is a continuation-to-file of International Application No. PCT / KR2021 / 004992, filed on April 21, 2021, pursuant to 35 U.SC §111(a), which claims priority to Korean Patent Application No. 10-2020-0072078, filed on June 15, 2020, and Korean Patent Application No. 10-2020-0127112, filed on September 29, 2020, the disclosures of which are incorporated herein by reference in their entirety.

Claims

1. A water purification filter assembly, comprising: The filter housing includes a receiving member with protrusions; as well as Header components, The protrusion is configured to be received in a recess on the outer peripheral surface of the filter, such that when the filter is placed in the receiving member and the protrusion is received in the recess, the inlet and outlet members of the filter extend beyond the receiving member and are inserted into the head assembly by rotation of the filter and are securely coupled to the head assembly. When the filter is placed in the receiving member and the protrusion is not received in the recessed portion, the inlet and outlet members of the filter are prevented from being inserted into the head assembly and are securely connectable to the head assembly.

2. The water purification filter assembly according to claim 1, wherein, The receiving component is a first receiving component, and The water purification filter assembly also includes: The second receiving member includes protrusions that are shaped differently from the protrusions of the first receiving member. in, When a first filter having a recessed portion having a protrusion configured to receive the first receiving member is inserted into the second receiving member, the protrusion of the second receiving member prevents the first filter from engaging with the head assembly. When a second filter having a recessed portion having a protrusion configured to receive the second receiving member is inserted into the first receiving member, the protrusion of the first receiving member prevents the second filter from being coupled to the head assembly.

3. The water purification filter assembly according to claim 1, wherein, When the filter is placed in the receiving member, the recessed portion of the filter is adjacent to the head assembly.

4. The water purification filter assembly according to claim 1, wherein, The receiving component is a first receiving component, and The water purification filter assembly also includes: The second receiving member includes a protrusion having the same shape as the protrusion of the first receiving member, the protrusion of the second receiving member being arranged in a position relative to the second receiving member that is different from the position of the protrusion of the first receiving member relative to the first receiving member.

5. The water purification filter assembly according to claim 1, further comprising: The filter, The filter is provided with a pair of recessed portions arranged symmetrically with respect to the longitudinal center of the filter.

6. The water purification filter assembly according to claim 1, wherein, The receiving component further includes: The peripheral components extend radially inward from the inner peripheral surface of the receiving component. in, The protrusion extends away from the peripheral member, and The protrusion extends further inward from the inner peripheral surface than the outer peripheral member.

7. The water purification filter assembly according to claim 1, wherein, The receiving component further includes: The peripheral components extend radially inward from the inner peripheral surface of the receiving component. in, The protrusion extends away from the peripheral member, and The protrusion extends further than the peripheral member along the longitudinal direction of the filter.

8. The water purification filter assembly according to claim 1, wherein, The head component includes: The mounting component is connected to the filter housing and can be connected to the filter. The mounting member is configured to engage with a mounting protrusion that projects radially outward from the inlet and outlet members of the filter when the protrusion of the receiving member is received in the recessed portion and the filter is rotated, such that the mounting protrusion of the filter is coupled to the interior of the mounting member.

9. The water purification filter assembly according to claim 1, wherein, The water purification filter assembly also includes: A cover member, attached to the filter housing on the side opposite to the head assembly, and configured to open when the filter is placed in the receiving member to receive the filter and to close when the filter is fixedly attached to the head assembly to cover the handle of the filter.

10. The water purification filter assembly according to claim 9, wherein, The cover component includes: The inner support includes a receiving aperture through which the filter passes when the filter is placed in the receiving member; and An outer bracket is attached to the inner bracket to open and close the receiving port from the outside of the inner bracket.

11. The water purification filter assembly according to claim 10, wherein, The external support includes: A doorstop, extending from the inner surface toward the handle and configured such that, When the filter is securely attached to the head assembly, the outer support is closable, and When the filter is improperly received in the receiving member, the door stop interferes with the handle, making the outer bracket unable to be closed.

12. The water purification filter assembly according to claim 1, wherein, The receiving component is a first receiving component, and the water purification filter assembly further includes: A second receiving member is arranged adjacent to the first receiving member and in a first direction away from the first receiving member; and The third receiving member is arranged adjacent to the first receiving member and in a second direction away from the first receiving member.

13. The water purification filter assembly according to claim 12, wherein, Each of the first receiving member, the second receiving member, and the third receiving member has a protrusion with a different configuration, which can be received in a recessed portion of a different configuration in a different filter.

14. The water purification filter assembly according to claim 1, further comprising: Interference ribs are mounted on the filter housing and protrude inward from the inner circumferential surface of the receiving member. The interference ribs are configured such that, The interference ribs engage with guide grooves formed on the outer peripheral surface of the filter to guide the correct placement of the filter in the receiving member, and When the guide groove that engages with the interference rib is formed to be inclined relative to the direction in which the filter is inserted into the filter housing, the interference rib is pushed outward during the insertion of the filter into the receiving member.

15. The water purification filter assembly according to claim 14, wherein, The filter housing includes a cutout configured to allow the interference rib to protrude into the filter housing.

16. The water purification filter assembly according to claim 1, further comprising: The filter.

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