Water heater assembly

Abstract

The water heater assembly comprises a water heater and a filter element assembly, the water heater comprises a shell and a heat exchanger used for heating water, the heat exchanger is arranged in the shell and provided with an exchange inlet and an exchange outlet, the filter element assembly comprises a connecting base and a filter element, and a water inlet connector and a water outlet connector are formed in the connecting base; the water inlet connector is connected with the exchange outlet, the filter element is detachably connected with the connecting base and provided with a water inlet hole and a water outlet hole, the water inlet hole is suitable for being communicated with the water inlet connector, the water outlet hole is suitable for being communicated with the water outlet connector, and filter materials in the filter element are slow-release filter materials. According to the water heater assembly provided by the embodiment of the invention, the water flow flowing out of the heat exchanger can be filtered by using the filter element assembly, so that substances stimulating skin in the water flow can be removed, and the overall water outlet quality of the water heater assembly is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water heaters, and in particular to a water heater component. Background Art

[0002] Nowadays, more and more consumers are concerned about water quality and health. In the related art, the water heater assembly cannot remove substances (such as chloride ions, etc.) in the water flow that irritate the skin, causing users to experience symptoms such as itching after using the water heater assembly, affecting the user's water health. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a water heater assembly, by connecting the water inlet interface of the seat of the filter element assembly with the exchange outlet of the heat exchanger, the filter element assembly can be used to filter the water flow out of the heat exchanger, thereby removing substances that irritate the skin in the water flow, improving the overall water quality of the water heater assembly, and meeting the user's healthy water needs.

[0004] A water heater assembly according to an embodiment of the present invention includes: a water heater, which includes a shell and a heat exchanger for heating water, the heat exchanger is arranged in the shell and has an exchange inlet and an exchange outlet; a filter element assembly, the filter element assembly includes a socket and a filter element, the socket is formed with a water inlet interface and a water outlet interface, the water inlet interface is connected to the exchange outlet, the filter element is detachably connected to the socket, the filter element has a water inlet hole and a water outlet hole, the water inlet hole is suitable for communicating with the water inlet interface, the water outlet hole is suitable for communicating with the water outlet interface, and the filter material in the filter element is a slow-release filter material.

[0005] According to the water heater assembly of the embodiment of the present invention, by connecting the water inlet interface of the filter element assembly with the exchange outlet of the heat exchanger, the filter element assembly can be used to filter the water flow out of the heat exchanger, thereby removing substances that irritate the skin in the water flow, improving the overall water quality of the water heater assembly, and meeting the user's healthy water needs.

[0006] According to some embodiments of the present invention, the filter element assembly is located outside the water heater.

[0007] According to some embodiments of the present invention, at least the socket is located inside the housing, and at least a portion of the filter element is located outside the water heater.

[0008] According to some embodiments of the present invention, the entire socket is located inside the housing, and the portion of the filter element that cooperates with the socket is located inside the housing.

[0009] According to some embodiments of the present invention, the water heater assembly includes: a water mixing valve connected between the heat exchanger and the filter element assembly.

[0010] According to some embodiments of the present invention, the water mixing valve has a first inlet, a second inlet and a water mixing outlet, the second inlet is connected to the exchange outlet, and the water mixing outlet is connected to the water inlet interface.

[0011] According to some embodiments of the present invention, the water heater assembly includes: a water mixing valve connected to the downstream side of the filter element assembly.

[0012] According to some embodiments of the present invention, the water mixing valve has a first inlet, a second inlet and a mixed water outlet, and the second inlet is connected to the water outlet interface.

[0013] According to some embodiments of the present invention, a valve assembly is provided in the socket, and the valve assembly has an on state and a off state; wherein, after the filter element is assembled with the socket, the valve assembly is in the on state, the water inlet hole is connected with the water inlet interface, and the water outlet hole is connected with the water outlet interface; after the filter element is separated from the socket, the valve assembly is in the off state, the water inlet hole is separated from the water inlet interface, and the water outlet hole is separated from the water outlet interface.

[0014] According to some embodiments of the present invention, when the filter element is assembled with the socket, the filter element contacts and cooperates with the valve assembly so that the valve assembly switches from the cut-off state to the on state.

[0015] According to some embodiments of the present invention, in the on state, the water inlet interface is isolated from the water outlet interface; in the off state, the water inlet interface is connected to the water outlet interface.

[0016] According to some embodiments of the present invention, a first installation cavity, a second installation cavity and a connecting cavity are formed in the connecting seat, the first installation cavity and the second installation cavity are separated from each other, the valve assembly includes a first stop valve and a second stop valve, the first stop valve is provided in the first installation cavity, the first stop valve includes a first valve seat and a first valve core, a first connecting passage connected to the water inlet interface is formed in the first valve seat, the first valve core is movably arranged in the first connecting passage between a first position and a second position, the second stop valve is provided in the second installation cavity, the second stop valve includes a second valve seat and a second valve core, a second connecting passage connected to the water outlet interface is formed in the second valve seat, the second valve core is movably arranged in the first connecting passage between a first position and a second position The second communicating channel is movably arranged between four positions; wherein, when the valve assembly is in the conducting state, the first valve core is in the first position and the second valve core is in the third position, the first communicating channel connects the water inlet interface and the water inlet hole, the second communicating channel connects the water outlet interface and the water outlet hole, and the first communicating channel and the second communicating channel are both isolated from the communicating cavity; when the valve assembly is in the cut-off state, the first valve core is in the second position and the second valve core is in the fourth position, the first communicating channel is isolated from the water inlet hole, the second communicating channel is isolated from the water outlet hole, and the first communicating channel and the second communicating channel are connected through the communicating cavity.

[0017] According to some embodiments of the present invention, the filter element includes a filter element shell, a filter element cover and a water sealing structure, the filter element cover is arranged on the open end of the filter element shell and is formed with the water inlet hole and the water outlet hole; the water sealing structure includes a water stop pad and a water stop spring, one end of the water stop spring is connected to the water stop pad and the other end is connected to the filter element cover, the water stop pad can move to open or close the water inlet hole, and the water stop spring is suitable for pushing the water stop pad to close the water inlet hole.

[0018] According to some embodiments of the present invention, the filter element cover includes a cover body and a water outlet column, a water inlet and outlet channel is defined between the water outlet column and the cover body, the water inlet channel is suitable for connecting the water inlet hole with the accommodating cavity, a water outlet channel is formed on the water outlet column, the water outlet channel is suitable for connecting the water outlet hole with the accommodating cavity, and the water stop spring is sleeved on the outer peripheral side of the water outlet column.

[0019] According to some embodiments of the present invention, the filter element includes a filter material box, which is arranged in the filter element shell, and the filter material box has a accommodating cavity for accommodating filter material. The filter element includes a spring pressure cover, and the inner peripheral wall of the filter element cover is formed with a first positioning groove. The spring pressure cover is installed and fixed in the first positioning groove, and the other end of the water stop spring is connected to the spring pressure cover.

[0020] According to some embodiments of the present invention, a second positioning groove is formed on the water-stop pad, and one end of the water-stop spring is accommodated in the second positioning groove.

[0021] According to some embodiments of the present invention, the filter element assembly includes a push rod, which is passed through the filter element cover and is movable relative to the filter element cover. When the filter element is assembled with the socket, the socket is suitable for driving the push rod to push the water stop pad to open the water inlet hole; after the filter element is separated from the socket, the water stop spring pushes the water stop pad to reset and close the water inlet hole.

[0022] According to some embodiments of the present invention, the push rod is connected and fixed to the socket or the water-stop pad.

[0023] According to some embodiments of the present invention, the filter element includes: a filter element shell; a filter element cover, wherein the filter element cover is arranged at the open end of the filter element shell and is formed with the water inlet hole and the water outlet hole; a filter material box, which is arranged in the filter element shell, and the filter material box has a accommodating cavity for accommodating filter material, and the accommodating cavity is suitable for communicating with the water inlet hole and the water outlet hole. The filter material is a slow-release filter material, and a slow-release hole is formed on the filter material box, and water is suitable for flowing into or out of the accommodating cavity through the slow-release hole, and the slow-release hole is opposite to the water outlet hole.

[0024] According to some embodiments of the present invention, the filter material box includes a box body and a box cover, the box body is open on one side facing the filter element cover, the box cover is detachably covered on the open end of the box body, the slow-release hole is formed on the box cover, and the filter element cover is detachably covered on the open end of the filter element shell.

[0025] According to some embodiments of the present invention, the filter element includes a water sealing structure and a spring pressure cover, the spring pressure cover is installed and fixed on the inner wall of the filter element cover, the water sealing structure includes a water stop pad and a water stop spring, one end of the water stop spring is connected to the water stop pad and the other end is connected to the spring pressure cover, the water stop pad can move to open or close the water inlet hole, the water stop spring is suitable for pushing the water stop pad to close the water inlet hole, and a supporting structure is provided on the box cover, and the supporting structure abuts against the spring pressure cover in the axial direction of the filter element shell.

[0026] According to some embodiments of the present invention, the support structure includes a plurality of support ribs, which are arranged at intervals along the circumference of the box cover and are located on the outer peripheral side of the slow-release hole, and the support ribs abut against the spring pressure cover in the axial direction of the filter element shell.

[0027] According to some embodiments of the present invention, the filter element includes: a filter element shell; a filter element cover, wherein the filter element cover is arranged at the open end of the filter element shell and is formed with a water inlet hole and a water outlet hole; a filter material box, which is arranged in the filter element shell, and the filter material box has a accommodating cavity for accommodating filter material, and the accommodating cavity is suitable for communicating with the water inlet hole and the water outlet hole; wherein a limiting structure is provided in the filter element shell, and the limiting structure is used to limit the filter material box.

[0028] According to some embodiments of the present invention, the limiting structure is located on the outer peripheral side of the filter box and is suitable for abutting against the outer peripheral wall of the filter box.

[0029] According to some embodiments of the present invention, the limiting structure includes a plurality of limiting ribs, and the plurality of limiting ribs are arranged at intervals along the circumference of the filter box.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 is a schematic diagram of a water heater assembly according to some embodiments of the present invention, wherein a filter element assembly portion is disposed outside a housing of the water heater;

[0033] Figure 2 is a schematic diagram of a water heater assembly according to some other embodiments of the present invention, wherein the filter element assembly is entirely disposed outside the housing of the water heater;

[0034] Figure 3 is a schematic diagram of a water flow path of a water heater assembly according to some embodiments of the present invention;

[0035] Figure 4 is a schematic diagram of a water flow path of a water heater assembly according to other embodiments of the present invention;

[0036] Figure 5 Schematic diagram of water flow path of water heater components according to some other embodiments of the present invention

[0037] Figure 6 is an exploded schematic diagram of a filter element assembly according to some embodiments of the present invention, wherein the filter element assembly has no ejector pin;

[0038] Figure 7 yes Figure 6 A partial cross-sectional view of a filter element assembly in FIG.

[0039] Figure 8 yes Figure 6 A cross-sectional view of the connector in FIG.

[0040] Fig. 9 is an exploded schematic diagram of a filter element assembly according to some other embodiments of the present invention, wherein a push rod is disposed on a receiving seat;

[0041] Fig.10 yes Fig. 9 A partial cross-sectional view of a filter element assembly in FIG.

[0042] Fig.11 yes Fig. 9 A cross-sectional view of the connector in FIG.

[0043] Fig.12 is an exploded schematic diagram of a filter element assembly according to some other embodiments of the present invention, wherein a top rod is arranged on a water stop pad;

[0044] Fig.13 yes Fig.12 A partial cross-sectional view of a filter element assembly in FIG.

[0045] Fig.14 yes Fig.12 A cross-sectional view of the connector in FIG.

[0046] Fig.15 yes Figure 8 A schematic diagram of a first stop valve in, wherein the first stop valve is in a second position;

[0047] Fig.16 yes Fig.15 A schematic diagram of a first stop valve in , wherein the first stop valve is in a first position;

[0048] Fig.17 yes Figure 8 A cross-sectional view of the connector from another perspective;

[0049] Fig.18 yes Fig. 9 A cross-sectional view of the filter element in FIG.

[0050] Fig.19 yes Fig.18 The assembly cross-sectional view of the filter element and the socket;

[0051] Fig. 20 yes Fig.12 A cross-sectional view of the filter element in FIG.

[0052] Fig.21 yes Fig. 20 The assembly cross-sectional view of the filter element and the socket;

[0053] Fig. 22 is a schematic diagram of a filter element housing of a filter element according to some embodiments of the present invention;

[0054] Fig.23 yes Fig. 22 A schematic diagram of another perspective of the filter cartridge housing;

[0055] Fig.24 yes Fig. 22 A cross-sectional view of the filter cartridge housing in FIG.

[0056] Fig.25 is a schematic diagram of a cartridge body of a filter element according to some embodiments of the present invention;

[0057] Fig.26 is a schematic diagram of a box cover of a filter element according to some embodiments of the present invention;

[0058] Fig. 27 yes Fig.26 A schematic diagram of another perspective of the box cover;

[0059] Fig.28 yes Fig.26 A cross-sectional view of the box cover in FIG.

[0060] Fig.29 is a schematic diagram of a filter element cover of a filter element according to some embodiments of the present invention;

[0061] Fig.30 yes Fig.29 A schematic diagram of another perspective of the filter cover in FIG.

[0062] Fig.31 is a schematic diagram of a spring gland of a filter element according to some embodiments of the present invention;

[0063] Fig.32 is a cross-sectional view of a water stop pad of a filter element according to some embodiments of the present invention.

[0064] Reference numerals:

[0065] 100. Water heater components;

[0066] 10. Filter element assembly; 1. Filter element; 11. Filter element shell; 111. Position limiting structure; 111a. Position limiting rib; 111b. Guide surface; 111c. Position limiting surface; 112. Shell bottom wall; 12. Filter element cover; 121. Water inlet hole; 122. Water outlet hole; 123. Cover body; 123a. First positioning groove; 124. Water outlet column; 125. Water inlet channel; 126. Water outlet channel; 127. Third sealing ring; 13. Filter material box; 131. Box cover; 1 31a, cover body; 131b, matching part; 132, box body; 132a, guide wall; 132b, supporting convex rib; 133, accommodating chamber; 134, slow-release hole; 135, supporting structure; 135a, supporting rib plate; 14, water sealing structure; 141, water-stopping pad; 141a, second positioning groove; 142, water-stopping spring; 143, spring pressure cover; 143a, spring baffle; 143b, water-passing hole; 15, one-way valve; 151, second sealing ring;

[0067] 2. Seat; 21. Valve assembly; 211. First stop valve; 211a. First valve seat; 211b. First valve core; 211c. First spring; 211d. Fifth sealing ring; 212. Second stop valve; 212a. Second valve seat; 212b. Second valve core; 212c. Second spring; 212d. Seventh sealing ring; 213. First communicating channel; 214. Second communicating channel; 215. Fourth sealing ring; 216. Sixth sealing ring; 22. Water inlet interface; 23. Water outlet interface; 24. First installation cavity; 25. Second installation cavity; 26. Communication cavity; 27. First sealing ring; 3. Push rod;

[0068] 20. Water heater; 4. Heat exchanger; 41. Exchange inlet; 42. Exchange outlet;

[0069] 30, mixing valve; 51, first inlet; 52, second inlet; 53, mixing outlet;

[0070] 40. Shell. DETAILED DESCRIPTION

[0071] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0072] Reference below Figure 1-Figure 32 A water heater assembly 100 according to an embodiment of the present invention is described.

[0073] like Figure 1-Figure 2 , Figure 6 , Fig. 9 and Fig.12As shown, the water heater assembly 100 according to the embodiment of the present invention includes: a water heater 20 and a filter element assembly 10 .

[0074] The water heater 20 includes a housing 40 and a heat exchanger 4 for heating water. The heat exchanger 4 is disposed in the housing 40 and has an exchange inlet 41 and an exchange outlet 42. External water can flow into the heat exchanger 4 through the exchange inlet 41 of the heat exchanger 4, and the water is heated in the heat exchanger 4 to increase its temperature. The heated water can flow out from the exchange outlet 42 of the heat exchanger 4, thereby meeting the user's use requirements for water flow temperature. The arrow direction in the figure indicates the flow direction of the water.

[0075] The filter element assembly 10 includes a socket 2 and a filter element 1. The filter element 1 in the filter element assembly 10 can filter the internal water flow, remove the substances that irritate the skin in the water flow, and improve the quality of the water flow. The socket 2 is formed with a water inlet interface 22 and a water outlet interface 23. The water inlet interface 22 is connected to the exchange outlet 42. After the water flow heated in the heat exchanger 4 flows out from the exchange outlet 42, it can flow into the filter element assembly 10 through the water inlet interface 22, and after being filtered by the filter element assembly 10, it flows out of the filter element assembly 10 through the water outlet interface 23.

[0076] The filter element 1 and the socket 2 are detachably connected, which can facilitate the installation and removal of the filter element 1 and the socket 2, and facilitate the replacement and maintenance of the filter element 1. For example, the filter element 1 can be connected to the socket 2 by a snap connection or a threaded connection, which has a simple structure and is easy to operate, and is convenient for the installation and removal of the filter element 1.

[0077] The filter element 1 has a water inlet 121 and a water outlet 122. Water can flow into the filter element 1 from the water inlet 121 of the filter element 1, flow and filter inside the filter element 1, and then flow out from the water outlet 122 of the filter element 1. The water inlet 121 is suitable for communicating with the water inlet interface 22, and the water outlet 122 is suitable for communicating with the water outlet interface 23.

[0078] Thus, the external water flow can flow into the heat exchanger 4 through the exchange inlet 41, the water flow is heated in the heat exchanger 4, and the heated water flow can flow out from the exchange outlet 42 of the heat exchanger 4. The water flow flowing out from the exchange outlet 42 can flow into the socket 2 through the water inlet interface 22, and then flow into the filter element 1 through the water inlet hole 121 on the filter element 1. When flowing inside the filter element 1, the filter element 1 can filter the water flow, and the treated water flow will flow out of the filter element 1 through the water outlet hole 122, and flow into the socket 2, and finally flow out from the water outlet interface 23 of the socket 2, thereby realizing the filtering effect of the filter element assembly 10 on the water flow out of the water heater 20.

[0079] For example, a first sealing ring 27 is provided at the connection between the filter element 1 and the socket 2. There may be multiple first sealing rings 27. The first sealing ring 27 can seal the connection between the filter element 1 and the socket 2 to prevent water from leaking out of the connection between the filter element 1 and the socket 2, thereby ensuring the normal use of the filter element assembly 10.

[0080] The filter material in the filter element 1 is a slow-release filter material. After the slow-release filter material contacts the water flow, it will slowly dissolve. The filter material solution after slow-release dissolution is released in the water flow to achieve the optimization treatment of the water flow. Among them, the slow-release filter material includes a substrate and an additive. Specifically, the substrate can be a sugar base or a wax base, etc., and the additive can be a solute with a special smell such as lavender or lemon, so that the water flow treated by the filter element assembly 10 has a special smell such as lavender or lemon, so as to better improve the user's bathing comfort; the additive can also be a hyaluronic acid or other hydrating substance, so as to achieve skin hydration during the user's bathing process; the additive can also be a substance that can remove residual chlorine in the water, such as ascorbic acid, so as to better avoid symptoms such as skin itching caused by residual chlorine in the water, so as to improve the user's bathing comfort.

[0081] According to the water heater assembly 100 of the embodiment of the present invention, by connecting the water inlet interface 22 of the socket 2 of the filter element assembly 10 with the exchange outlet 42 of the heat exchanger 4, the filter element assembly 10 can be used to filter the water flow out of the heat exchanger 4, thereby removing substances that irritate the skin in the water flow, improving the overall water quality of the water heater assembly 100, and meeting the user's healthy water needs.

[0082] According to some embodiments of the present invention, referring to Figure 2 , the filter element assembly 10 is located outside the water heater 20. This arrangement can reduce the overall size of the water heater 20, thereby reducing the space occupied by the water heater 20 as a whole, and at the same time can facilitate the installation and removal of the filter element assembly 10, as well as the replacement and maintenance of the filter element 1 of the filter element assembly 10.

[0083] According to some embodiments of the present invention, referring to Figure 1 , the socket 2 is at least located in the housing 40, for example, part of the socket 2 is located in the housing 40, or the socket 2 is completely located in the housing 40. At least part of the filter element 1 is located outside the water heater 20, for example, part of the filter element 1 is located outside the water heater 20, or the filter element 1 is completely located outside the water heater 20. This arrangement can shorten the distance between the filter element assembly 10 and the water heater 20, thereby making the overall structure of the water heater assembly 100 more compact, improving the overall space utilization, and facilitating the replacement and maintenance of the filter element 1 of the filter element assembly 10.

[0084] According to some embodiments of the present invention, referring to Figure 1The entire socket 2 is located in the housing 40, and the portion where the filter element 1 and the socket 2 match is located in the housing 40, which can shorten the distance between the socket 2 and the heat exchanger 4, facilitate the connection between the socket 2 and the heat exchanger 4, and thus make the overall structure of the water heater assembly 100 more compact, and facilitate the replacement and maintenance of the filter element 1 of the filter element assembly 10. Such a configuration can also protect the portion where the filter element 1 and the socket 2 match, and ensure the stability and reliability of the connection between the filter element 1 and the socket 2.

[0085] According to some embodiments of the present invention, referring to Figure 4-Figure 5 The water heater assembly 100 includes: a mixing valve 30, which has a temperature adjustment function and can adjust the overall water outlet temperature of the water heater 20 to meet the different needs of users. The mixing valve 30 can be connected between the heat exchanger 4 and the filter element assembly 10, so that all the water flowing out of the mixing valve 30 flows through the filter element assembly 10, and flows out of the water heater assembly 100 after being filtered by the filter element assembly 10, thereby removing substances that irritate the skin in the water flow, improving the overall water quality of the water heater assembly 100, and meeting the user's healthy water needs.

[0086] According to some embodiments of the present invention, referring to Figure 4-Figure 5 The mixing valve 30 has a first inlet 51, a second inlet 52 and a mixing outlet 53. The second inlet 52 is connected to the exchange outlet 42, and the mixing outlet 53 is connected to the water inlet interface 22. The first inlet 51 of the mixing valve 30 can be connected to the water path that does not pass through the heat exchanger 4, and the second inlet 52 is connected to the exchange outlet 42 of the heat exchanger 4. The water flows entering the mixing valve 30 from the first inlet 51 and the second inlet 52 can be mixed in the mixing valve 30, and the mixed water flows can flow out from the mixing outlet 53 of the mixing valve 30, so that the mixing valve 30 can adjust the overall water outlet temperature of the water heater assembly 100 to meet the different needs of users.

[0087] The mixing water outlet 53 is connected to the water inlet interface 22 of the filter element assembly 10, so that all the water flowing out of the mixing water valve 30 can flow through the filter element assembly 10, and after being filtered by the filter element assembly 10, flow out of the water heater assembly 100, thereby removing substances that irritate the skin in the water flow, improving the overall water quality of the water heater assembly 100, and meeting the user's healthy water needs.

[0088] According to some embodiments of the present invention, referring to Figure 4-Figure 5The water heater assembly 100 includes: a mixing valve 30, which has a temperature adjustment function and can adjust the overall water outlet temperature of the water heater 20 to meet the different needs of users. The mixing valve 30 is connected to the downstream side of the filter element assembly 10, so that part of the water flowing out of the mixing valve 30 can be the water flow filtered by the filter element assembly 10, thereby improving the overall water quality of the water heater assembly 100 and meeting the user's healthy water needs.

[0089] According to some embodiments of the present invention, referring to Figure 4-Figure 5 The water mixing valve 30 has a first inlet 51, a second inlet 52 and a mixed water outlet 53, and the second inlet 52 is connected to the water outlet interface 23. The first inlet 51 of the water mixing valve 30 can be connected to the water path that does not pass through the heat exchanger 4, and the second inlet 52 is connected to the water outlet interface 23 of the filter element assembly 10. The water flow heated by the heat exchanger 4 first flows through the filter element assembly 10, is filtered by the filter element assembly 10, and then flows into the water mixing valve 30 through the second inlet 52, and after mixing with the water flow entering the water mixing valve 30 from the first inlet 51, flows out of the water mixing valve 30 from the mixed water outlet 53.

[0090] The second inlet 52 of the mixing valve 30 is connected to the water outlet interface 23, so that part of the water flowing out of the mixing valve 30 can be the water flow filtered by the filter element assembly 10, thereby improving the overall water quality of the water heater assembly 100 and meeting the user's healthy water needs.

[0091] According to some embodiments of the present invention, referring to Figure 7-Figure 8 , Figure 10-11 and Figure 13-14 The socket 2 is provided with a valve assembly 21, which has a conducting state and a blocking state. The valve assembly 21 can control the connection and isolation of the waterway between the socket 2 and the filter element 1 according to the assembly state between the socket 2 and the filter element 1, thereby avoiding the waste of water resources.

[0092] Among them, after the filter element 1 and the socket 2 are assembled, the valve assembly 21 is in a conducting state, the water inlet hole 121 is connected to the water inlet interface 22, and the water outlet hole 122 is connected to the water outlet interface 23. Therefore, after the filter element 1 and the socket 2 are assembled, the valve assembly 21 is in a conducting state, and the water flow can flow into the socket 2 from the water inlet interface 22 of the socket 2, and then flow through the valve assembly 21 of the socket 2 into the water inlet hole 121 of the filter element 1, and after flowing inside the filter element 1, it flows out of the filter element 1 through the water outlet hole 122 of the filter element 1, and then flows into the socket 2 through the valve assembly 21, and finally flows out from the water outlet interface 23 of the socket 2, thereby achieving the filtering effect of the filter element assembly 10 on the water flow.

[0093] After the filter element 1 is separated from the socket 2, the valve assembly 21 is in a cut-off state, the water inlet hole 121 is cut off from the water inlet interface 22, and the water outlet hole 122 is cut off from the water outlet interface 23. Therefore, after the filter element 1 is separated from the socket 2, the valve assembly 21 is in a cut-off state, and the water path in the socket 2 cannot be connected with the water path in the filter element 1, so that the water flow in the socket 2 can be prevented from flowing out when the filter element 1 is replaced or repaired, thereby avoiding the waste of water resources and facilitating the installation and removal of the filter element 1 as a whole.

[0094] In addition, after the filter element 1 is separated from the socket 2, the valve assembly 21 is in a cut-off state. This arrangement allows the user to replace or repair the filter element 1 without closing the main control valve of the indoor water flow path, thereby reducing the number of operating steps during maintenance and improving maintenance efficiency. At the same time, it can prevent the water in the socket 2 from flowing out and causing a waste of water resources.

[0095] According to some embodiments of the present invention, referring to Figure 7 , Fig.10 and Fig.13 When the filter element 1 is assembled with the socket 2, the filter element 1 and the valve assembly 21 are in contact and matched, so that the valve assembly 21 switches from the cut-off state to the conducting state, and the water path between the socket 2 and the filter element 1 is connected. Water can flow into the socket 2 from the water inlet interface 22 of the socket 2, and then flow through the valve assembly 21 of the socket 2 into the water inlet hole 121 of the filter element 1. After flowing inside the filter element 1, it flows out of the filter element 1 through the water outlet hole 122 of the filter element 1, and then flows into the socket 2 through the valve assembly 21, and finally flows out from the water outlet interface 23 of the socket 2. For example, when the filter element 1 is separated from the socket 2, the filter element 1 is out of contact with the valve assembly 21, so that the valve assembly 21 switches from the conducting state to the cut-off state, and the water path between the socket 2 and the filter element 1 is cut off.

[0096] Therefore, the automatic conversion between the on state and the off state of the valve assembly 21 can be realized through the matching state of the filter element 1 and the valve assembly 21, thereby realizing the automatic on and off of the water path between the socket 2 and the filter element 1, which is convenient to use.

[0097] According to some embodiments of the present invention, referring to Figure 7-Figure 8 , Figure 10-11 and Figure 13-14 In the on state, the water inlet interface 22 is isolated from the water outlet interface 23; in the off state, the water inlet interface 22 is connected to the water outlet interface 23. With this arrangement, when the valve assembly 21 is in the on state, it is possible to avoid the phenomenon that water flows into the socket 2 through the water inlet interface 22 and then directly flows out of the socket 2 through the water outlet interface 23, thereby ensuring that the water flowing out of the water outlet interface 23 of the socket 2 is the water flowing through the filter element 1, thereby ensuring the filtering effect of the filter element assembly 10 on the water flow.

[0098] When the valve assembly 21 is in the cut-off state, the water inlet interface 22 is connected to the water outlet interface 23, so that water can flow into the socket 2 through the water inlet interface 22 and then directly flow out through the water outlet interface 23, thereby ensuring the normal flow of water in the water path connected to the socket 2 when the filter element 1 is removed.

[0099] In addition, when the filter element 1 is removed from the socket 2 and the valve assembly 21 is in the cut-off state, the water inlet interface 22 is connected to the water outlet interface 23. This arrangement ensures that the water flow path in the water heater 20 is normally connected when the user replaces or repairs the filter element 1, thereby ensuring the normal use of the water heater 20.

[0100] According to some embodiments of the present invention, referring to Figure 7-Figure 8 , Figure 10-11 and Figure 13-Figure 17 The socket 2 is formed with a first installation cavity 24, a second installation cavity 25 and a communication cavity 26. The first installation cavity 24 and the second installation cavity 25 are separated from each other. The valve assembly 21 includes a first stop valve 211 and a second stop valve 212. The first stop valve 211 is provided in the first installation cavity 24. The first stop valve 211 includes a first valve seat 211a and a first valve core 211b. A first communication channel 213 communicating with the water inlet interface 22 is formed in the first valve seat 211a. The first valve core 211b is movably arranged in the first communication channel 213 between a first position and a second position. The first valve core 211b of the first stop valve 211 can be used to control the communication and isolation between the water inlet interface 22 and the water inlet hole 121. When the first valve core 211b is in the first position, the water path between the water inlet interface 22 and the water inlet hole 121 is connected, and the water flow can enter the first communication channel 213 through the water inlet interface 22, and after flowing through the first communication channel 213, it flows into the filter element 1 through the water inlet hole 121. When the first valve core 211 b is in the second position, the water path between the water inlet interface 22 and the water inlet hole 121 is blocked, and the water inlet interface 22 is communicated with the communication chamber 26 .

[0101] A second stop valve 212 is provided in the second installation cavity 25. The second stop valve 212 includes a second valve seat 212a and a second valve core 212b. A second communication channel 214 communicating with the water outlet interface 23 is formed in the second valve seat 212a. The second valve core 212b is movably provided in the second communication channel 214 between the third position and the fourth position. The second valve core 212b of the second stop valve 212 can be used to control the communication and isolation between the water outlet interface 23 and the water outlet hole 122. When the second valve core 212b is in the third position, the water path between the water outlet interface 23 and the water outlet hole 122 is connected, and the water flow in the filter element 1 can flow into the second communication channel 214 through the water outlet hole 122, and after flowing through the second communication channel 214, it flows out of the socket 2 through the water outlet interface 23. When the second valve core 212b is in the fourth position, the water path between the water outlet interface 23 and the water outlet hole 122 is isolated, and the water inlet interface 22 is connected with the communication cavity 26.

[0102] Among them, when the valve assembly 21 is in the conducting state, the first valve core 211b is in the first position and the second valve core 212b is in the third position, the first connecting channel 213 connects the water inlet interface 22 and the water inlet hole 121, the second connecting channel 214 connects the water outlet interface 23 and the water outlet hole 122, and the first connecting channel 213 and the second connecting channel 214 are both separated from the connecting cavity 26, which can ensure that the water flowing out of the water outlet interface 23 of the socket 2 is the water flowing through the filter element 1, thereby ensuring the filtering effect of the filter element assembly 10 on the water flow.

[0103] Therefore, after the filter element 1 and the socket 2 are assembled, the valve assembly 21 is in a conducting state, and the external water flow can flow into the first connecting channel 213 from the water inlet interface 22 of the socket 2, and after flowing through the first connecting channel 213, it flows into the water inlet hole 121 of the filter element 1, and after flowing inside the filter element 1, it flows out of the filter element 1 through the water outlet hole 122 of the filter element 1 and flows into the second connecting channel 214, and after flowing through the second connecting channel 214, it flows out from the water outlet interface 23 of the socket 2, thereby realizing the filtering effect of the filter element assembly 10 on the water flow.

[0104] When the valve assembly 21 is in the cut-off state, the first valve core 211b is in the second position and the second valve core 212b is in the fourth position, the first communication channel 213 is isolated from the water inlet hole 121, the second communication channel 214 is isolated from the water outlet hole 122, and the first communication channel 213 and the second communication channel 214 are connected through the communication cavity 26. After the water flows into the socket 2 through the water inlet interface 22, it flows through the first communication channel 213, the communication cavity 26, and the second communication channel 214 in sequence, and then flows out of the socket 2 through the water outlet interface 23, so that when the filter element 1 is removed, the normal flow of water in the waterway connected to the socket 2 can be guaranteed.

[0105] Therefore, after the filter element 1 is separated from the socket 2, the valve assembly 21 is in a cut-off state, and the external water flow can flow into the first connecting channel 213 from the water inlet interface 22 of the socket 2, and flow into the connecting cavity 26 through the first connecting channel 213. The water flow in the connecting cavity 26 flows into the second connecting channel 214, and after flowing through the second connecting channel 214, flows out from the water outlet interface 23 of the socket 2.

[0106] During the assembly process of the filter element 1 and the socket 2, the filter element cover 12 of the filter element 1 can contact the first valve core 211b and the second valve core 212b at the same time, and continuously push the first valve core 211b and the second valve core 212b to move in the axial direction, so that the first valve core 211b moves from the second position to the first position, and the second valve core 212b moves from the fourth position to the third position. After the filter element 1 and the socket 2 are assembled, the first valve core 211b is located at the first position, the second valve core 212b is located at the third position, and the valve assembly 21 is in a conducting state.

[0107] For example, the first stop valve 211 may include a first spring 211c, one end of which is connected to the first valve core 211b, and the other end of which is connected to the first valve seat 211a. After the filter element 1 is separated from the socket 2, the first spring 211c can switch the first valve core 211b from the first position to the second position by acting on the first valve core 211b with elastic force; after the filter element 1 is assembled with the socket 2, the filter element 1 contacts and cooperates with the first valve core 211b, so that the first valve core 211b overcomes the elastic force of the first spring 211c and switches from the second position to the first position.

[0108] The second stop valve 212 may include a second spring 212c, one end of which is connected to the second valve core 212b, and the other end of which is connected to the second valve seat 212a. After the filter element 1 is separated from the socket 2, the second spring 212c may switch the second valve core 212b from the third position to the fourth position by acting on the elastic force of the second valve core 212b; after the filter element 1 is assembled with the socket 2, the filter element 1 contacts and cooperates with the second valve core 212b, so that the second valve core 212b overcomes the elastic force of the second spring 212c and switches from the fourth position to the third position.

[0109] According to some embodiments of the present invention, referring to Figure 18-Figure 24 , Figure 29-Figure 30 and Fig.32 The filter element 1 comprises a filter element housing 11, a filter element cover 12 and a water sealing structure 14. The filter element cover 12 is disposed on the open end of the filter element housing 11 and is formed with a water inlet 121 and a water outlet 122. Water can flow into the filter element 1 from the water inlet 121 of the filter element cover 12, flow through the filter element 1 and be filtered, and then flow out from the water outlet 122 of the filter element cover 12.

[0110] The water sealing structure 14 is used to open and close the water inlet hole 121. When the filter element 1 is installed on the socket 2, the water sealing structure 14 can open the water inlet hole 121, so that the water flow in the socket 2 can flow into the filter element 1, thereby achieving the filtering effect of the filter element 1 on the water flow; when the filter element 1 is removed from the socket 2, the water sealing structure 14 can close the water inlet hole 121 to prevent the water flow inside the filter element 1 from spilling out of the water inlet hole 121, thereby facilitating the user to disassemble the filter element 1.

[0111] The water sealing structure 14 includes a water stop pad 141 and a water stop spring 142. One end of the water stop spring 142 is connected to the water stop pad 141 and the other end is connected to the filter element cover 12. The water stop pad 141 can move to open or close the water inlet hole 121. The water stop spring 142 is suitable for pushing the water stop pad 141 to close the water inlet hole 121. When the filter element 1 is removed from the socket 2, the water stop spring 142 acts on the water stop pad 141 through the elastic force, so that the water stop pad 141 closes the water inlet hole 121, and prevents the water flow inside the filter element 1 from spilling out of the water inlet hole 121, thereby facilitating the user to disassemble the filter element 1. When the filter element 1 is installed on the socket 2, the water inlet pressure of the water inlet hole 121 can overcome the elastic force of the water stop spring 142 acting on the water stop pad 141, so that the water stop pad 141 opens the water inlet hole 121. For example, the water-stop spring 142 can push the water-stop pad 141 to move in the axial direction, so that the water-stop pad 141 opens or closes the water inlet hole 121 .

[0112] According to some embodiments of the present invention, referring to Figure 18-Figure 21 and Figure 29-Figure 30 The filter element 1 includes a filter material box 13, which is arranged in the filter element shell 11. The filter material box 13 has a receiving cavity 133 for receiving filter material. The filter material is used to treat the substances in the water that irritate the skin, so as to prevent the user from having skin problems due to contact with the water flow. For example, the filter material can remove the residual chlorine in the water.

[0113] The filter element cover 12 includes a cover body 123 and a water outlet column 124. A water inlet channel 125 is defined between the water outlet column 124 and the cover body 123. The water inlet channel 125 is suitable for connecting the water inlet hole 121 with the accommodating chamber 133. A water outlet channel 126 is formed on the water outlet column 124. The water outlet channel 126 is suitable for connecting the water outlet hole 122 with the accommodating chamber 133. When the water flows into the filter element 1 through the water inlet hole 121, the water flows into the water inlet channel 125 between the water outlet column 124 and the cover body 123, and then the water flows into the accommodating chamber 133 and contacts the filter material in the accommodating chamber 133. The filter material can perform filtering optimization treatment on the contacted water flow. The filtered water flow can flow out of the accommodating chamber 133 and flow into the water outlet channel 126 of the water outlet column 124, flow to the water outlet hole 122 through the water outlet channel 126, and finally flow out of the filter element 1 from the water outlet hole 122, thereby completing the filtration of the water flow by the filter element 1.

[0114] For example, a one-way valve 15 is provided in the water outlet channel 126, and the one-way valve 15 can ensure the flow direction of water in the water outlet channel 126, and prevent external water from entering the filter element 1 from the water outlet hole 122, thereby ensuring the filtering effect of the filter element 1. A second sealing ring 151 is provided between the one-way valve 15 and the water outlet channel 126, which can seal the water outlet channel 126 and ensure that the water in the water outlet channel 126 flows through the one-way valve 15.

[0115] The water stop spring 142 is sleeved on the outer peripheral side of the water outlet column 124, which can facilitate the connection between the water stop spring 142 and the water stop pad 141, and facilitate the axial positioning of the water stop spring 142, thereby ensuring the effect of the water stop spring 142 on the water stop pad 141. At the same time, the overall structure can be made more compact, thereby improving the space utilization rate inside the filter element 1.

[0116] According to some embodiments of the present invention, referring to Figure 18-Figure 21 , Fig.29 and Fig.31 The filter element 1 includes a spring pressure cover 143. The inner peripheral wall of the filter element cover 12 is formed with a first positioning groove 123a. The spring pressure cover 143 is installed and fixed in the first positioning groove 123a. The other end of the water stop spring 142 is connected to the spring pressure cover 143. The water stop spring 142 is located between the water stop pad 141 and the spring pressure cover 143 in the axial direction. The water stop pad 141 cooperates with the spring pressure cover 143 to jointly limit the length of the water stop spring 142 in the axial direction, so that the water stop spring 142 is in a compressed state, ensuring the direction and effect of the elastic force of the water stop spring 142 on the water stop pad 141.

[0117] The first positioning groove 123a can limit and fix the spring cover 143 to prevent the spring cover 143 from moving in the axial direction, thereby ensuring the axial length of the water stop spring 142 and further ensuring the direction and effect of the elastic force of the water stop spring 142 on the water stop pad 141.

[0118] For example, the spring pressure cover 143 is sleeved on the outer peripheral side of the water outlet column 124, and a spring baffle 143a is provided on the spring pressure cover 143. The end of the water stop spring 142 connected to the spring pressure cover 143 is located on the inner peripheral side of the spring baffle 143a. The spring baffle 143a can radially limit the water stop spring 142 to prevent the end of the water stop spring 142 connected to the spring pressure cover 143 from moving radially, thereby improving the stability of the water stop spring 142 and ensuring the effect of the water stop spring 142 on the water stop pad 141. A water hole 143b is formed on the spring pressure cover 143, and the water hole 143b is formed on the outer peripheral side of the spring baffle 143a. The water hole 143b can connect the spaces on both sides of the spring pressure cover 143 axially to ensure the normal flow of water inside the filter element 1.

[0119] According to some embodiments of the present invention, with reference to 32, a second positioning groove 141a is formed on the water stop pad 141, and one end of the water stop spring 142 is accommodated in the second positioning groove 141a. The second positioning groove 141a radially limits one end of the water stop spring 142 to prevent one end of the water stop spring 142 from moving radially relative to the water stop pad 141, thereby improving the stability of the water stop spring 142 and ensuring the effect of the water stop spring 142 on the water stop pad 141. For example, one end of the water stop spring 142 can be ground flat so that the contact area between one end of the water stop spring 142 and the inner wall of the second positioning groove 141a of the water stop pad 141 is larger, which can increase the friction between one end of the water stop spring 142 and the second positioning groove 141a, thereby further preventing the water stop spring 142 from moving in the radial direction and improving the stability of the water stop spring 142.

[0120] According to some embodiments of the present invention, referring to Fig.10 , Fig.13 , Fig.19 and Fig.21 The filter element assembly 10 includes a push rod 3, which is inserted into the filter element cover 12 and can move relative to the filter element cover 12. When the filter element 1 and the socket 2 are assembled, the socket 2 is suitable for driving the push rod 3 to push the water stop pad 141 to open the water inlet hole 121, so that the thrust of the push rod 3 on the water stop pad 141 overcomes the elastic force of the water stop spring 142 on the water stop pad 141, so that the water stop pad 141 opens the water inlet hole 121, thereby connecting the water inlet hole 121 with the water inlet interface 22, ensuring that the water flow in the socket 2 can flow into the filter element 1.

[0121] After the filter element 1 is separated from the socket 2, the water stop spring 142 pushes the water stop pad 141 to return to its original position and close the water inlet hole 121. When the filter element 1 is separated from the socket 2, the water stop pad 141 closes the water inlet hole 121 under the elastic force of the water stop spring 142, thereby preventing the water flow inside the filter element 1 from spilling out of the water inlet hole 121, making it easier for the user to disassemble the filter element 1.

[0122] For example, there may be three push rods 3 , and the three push rods 3 may be evenly spaced and arranged along the circumferential direction, so that the force on the water-stopping pad 141 may be more even, thereby improving the movement stability of the water-stopping pad 141 .

[0123] According to some embodiments of the present invention, referring to Fig.10 , Fig.13 , Fig.19 and Fig.21 The push rod 3 is connected and fixed to the socket 2 or the water-stop pad 141. When the filter element 1 and the socket 2 are assembled, the push rod 3 can push the water-stop pad 141 to open the water inlet hole 121. At the same time, after the filter element 1 is separated from the socket 2, the water-stop spring 142 can push the water-stop pad 141 to reset, thereby closing the water inlet hole 121.

[0124] According to some embodiments of the present invention, referring to Figure 18-Figure 21 The filter element 1 includes: a filter element shell 11, a filter element cover 12 and a filter material box 13.

[0125] The filter element cover 12 is disposed on the open end of the filter element housing 11 and is formed with a water inlet 121 and a water outlet 122. Water can flow into the filter element 1 from the water inlet 121 of the filter element cover 12, flow and filter inside the filter element 1, and then flow out from the water outlet 122 of the filter element cover 12.

[0126] The filter material box 13 is arranged in the filter element housing 11, and the filter material box 13 has a receiving cavity 133 for receiving filter material, and the receiving cavity 133 is suitable for communicating with the water inlet 121 and the water outlet 122. The filter material is used to process the substances in the water that irritate the skin, so as to prevent the user from having skin problems due to contact with the water flow.

[0127] The filter material is a slow-release filter material, and a slow-release hole 134 is formed on the filter material box 13, and the water flow is suitable for flowing into or out of the accommodating cavity 133 through the slow-release hole 134. In this way, the slow-release filter material in the filter material box 13 can be released to the outside of the accommodating cavity 133 through the slow-release hole 134, and the water flow is optimized by contacting with the water flow in the filter element 1. Specifically, the water flow entering the filter element 1 can flow into the accommodating cavity 133 through the slow-release hole 134, and the slow-release filter material is slowly dissolved after contacting with the water flow. The filter material solution after slow-release dissolution can be released into the water flow around the slow-release hole 134 along with the water flow through the slow-release hole 134, thereby optimizing the water flow. The water flow after optimized treatment is discharged from the filter element 1 through the water outlet.

[0128] The slow-release hole 134 is opposite to the water outlet hole 122. Water can flow into the filter element 1 from the water inlet hole 121, and after flowing through the various structures inside the filter element 1, it can flow out of the filter element 1 from the water outlet hole 122. In this way, when the water flows from the water inlet hole 121 to the water outlet hole 122, the slow-release hole 134 can be located on the flow path of the water flow, so that the water flow can flow into the receiving chamber 133, and the filter solution slowly released can flow out of the receiving chamber 133 by the flow of the water flow, so as to achieve the overall filtering effect on the water flow. At the same time, the overall structure can be made more compact, and the space utilization rate inside the filter element 1 can be improved.

[0129] For example, there are multiple water inlet holes 121 arranged at intervals along the circumference of the filter element cover 12, and the multiple water inlet holes 121 are distributed on the outer peripheral side of the water outlet hole 122. This arrangement can make the overall structure of the filter element 1 more compact and improve the utilization rate of the internal space.

[0130] According to some embodiments of the present invention, referring to Figure 18-Figure 21The filter material box 13 includes a box body 132 and a box cover 131. The box body 132 is open on one side facing the filter element cover 12. The box cover 131 is detachably covered on the open end of the box body 132. A receiving chamber 133 is defined between the box body 132 and the box cover 131. The box cover 131 is covered on the open end of the box body 132 to prevent the filter material in the receiving chamber 133 from spilling out during use or overall assembly, thereby affecting the filtering effect of the filter element 1 on the water flow as a whole. In addition, the box cover 131 is detachably covered on the open end of the box body 132 to facilitate the filling or replacement of the filter material in the filter material box 13. For example, the box cover 131 and the box body 132 can be fixedly connected by a threaded connection, which has a simple structure, is easy to disassemble, and has a reliable connection.

[0131] A slow-release hole 134 is formed on the box cover 131. After the water flows into the accommodating cavity 133 through the slow-release hole 134, it contacts the filter material in the accommodating cavity 133, so that the filter material inside the accommodating cavity 133 is slowly released and dissolved. The slowly-released filter material solution in the accommodating cavity 133 can flow out of the accommodating cavity 133 through the slow-release hole 134 and be released into the water flow outside the accommodating cavity 133, thereby achieving the overall filtering optimization effect of the filter element 1 on the water flow.

[0132] The filter element cover 12 is detachably covered on the open end of the filter element housing 11, which can facilitate the installation and removal of the filter element 1 as a whole, and the replacement of the filter material box 13. For example, the filter element cover 12 and the filter element housing 11 can be fixedly connected by threaded connection or clamping connection, which has a simple structure, convenient disassembly and reliable connection.

[0133] When the filter element 1 needs to be installed as a whole, the filter material can be first filled into the accommodating cavity 133 of the box body 132 of the filter box 13, and then the box cover 131 is covered on the open end of the box body 132 to complete the assembly of the filter box 13, and then the filter box 13 is installed as a whole on the filter element shell 11, and the filter box 13 is limited and fixed by the limiting structure 111 in the filter element shell 11, and finally the filter element cover 12 is covered on the filter element shell 11 to complete the assembly of the filter element 1 as a whole.

[0134] According to some embodiments of the present invention, referring to Figure 18-Figure 21The filter element 1 includes a water sealing structure 14 and a spring pressure cover 143. The spring pressure cover 143 is installed and fixed on the inner wall of the filter element cover 12, so that the spring pressure cover 143 can be fixed relative to the filter element cover 12 to ensure the stability of the spring pressure cover 143. The water sealing structure 14 is used to open and close the water inlet 121. When the filter element 1 is installed on the socket 2, the water sealing structure 14 can open the water inlet 121, so that the water flow in the socket 2 can flow into the filter element 1, thereby achieving the filtering effect of the filter element 1 on the water flow; when the filter element 1 is removed from the socket 2, the water sealing structure 14 can close the water inlet 121 to prevent the water flow inside the filter element 1 from spilling out of the water inlet 121, thereby facilitating the user to disassemble the filter element 1. For example, a first positioning groove 123a can be formed on the inner wall of the filter element cover 12, and the spring pressure cover 143 is installed and fixed in the first positioning groove 123a.

[0135] The water sealing structure 14 includes a water stop pad 141 and a water stop spring 142. One end of the water stop spring 142 is connected to the water stop pad 141 and the other end is connected to the spring pressure cover 143. The water stop pad 141 can move to open or close the water inlet hole 121. The water stop spring 142 is suitable for pushing the water stop pad 141 to close the water inlet hole 121. When the filter element 1 is removed from the water heater 20, the water stop spring 142 acts on the water stop pad 141 through the elastic force, so that the water stop pad 141 closes the water inlet hole 121, and prevents the water flow inside the filter element 1 from spilling out of the water inlet hole 121, thereby facilitating the user to remove the filter element 1. When the filter element 1 is installed on the water heater 20, the water inlet pressure of the water inlet hole 121 can overcome the elastic force of the water stop spring 142 acting on the water stop pad 141, so that the water stop pad 141 opens the water inlet hole 121. For example, the water-stop spring 142 can push the water-stop pad 141 to move in the axial direction, so that the water-stop pad 141 opens or closes the water inlet hole 121 .

[0136] The box cover 131 is provided with a support structure 135, and the support structure 135 abuts against the spring pressure cover 143 in the axial direction of the filter cartridge housing 11. The spring pressure cover 143 can cooperate with the bottom of the filter cartridge housing 11 to limit the filter cartridge 13 in the axial direction, thereby preventing the filter cartridge 13 from moving in the axial direction, thereby improving the stability of the filter cartridge 13.

[0137] According to some embodiments of the present invention, referring to Figure 26-Figure 28 The support structure 135 includes a plurality of support ribs 135a, which are arranged at intervals along the circumference of the box cover 131 and are located on the outer peripheral side of the slow-release hole 134. The plurality of support ribs 135a are arranged at intervals along the circumference of the box cover 131, so that the force of the box cover 131 can be more uniform, thereby ensuring the stability of the box cover 131, and the plurality of support ribs 135a can improve the structural strength and rigidity of the box cover 131.

[0138] The supporting ribs 135a and the spring pressure cover 143 are in contact with each other in the axial direction of the filter cartridge housing 11, so that the spring pressure cover 143 can cooperate with the bottom of the filter cartridge housing 11 to limit the filter cartridge 13 in the axial direction, thereby preventing the filter cartridge 13 from moving in the axial direction, thereby improving the stability of the filter cartridge 13. In addition, the supporting ribs 135a and the spring pressure cover 143 are in contact with each other, so that the box cover 131 and the spring pressure cover 143 define a certain space in the axial direction, so that the water flow can flow along the surface of the box cover 131, so that the water flow can flow into the filter cartridge 13 through the slow-release hole 134 and the solution in the filter cartridge 13 can flow out.

[0139] For example, there may be four supporting ribs 135 a , and the four supporting ribs 135 a may be evenly spaced along the circumference of the box cover 131 , so that the force on the box cover 131 is more even, thereby improving the structural strength of the box cover 131 .

[0140] According to some embodiments of the present invention, referring to Figure 18-Figure 21 The filter element 1 includes: a filter element shell 11, a filter element cover 12 and a filter material box 13.

[0141] The filter element cover 12 is disposed on the open end of the filter element housing 11 and is formed with a water inlet 121 and a water outlet 122. Water can flow into the filter element 1 from the water inlet 121 of the filter element cover 12, flow and filter inside the filter element 1, and then flow out from the water outlet 122 of the filter element cover 12.

[0142] The filter material box 13 is arranged in the filter element housing 11, and the filter material box 13 has a receiving chamber 133 for receiving filter material, and the receiving chamber 133 is suitable for communicating with the water inlet 121 and the water outlet 122. The filter material is used to treat the substances in the water that irritate the skin, so as to prevent the user from having skin problems due to contact with the water flow. For example, the filter material can remove the residual chlorine in the water.

[0143] When water flows into the filter element 1 through the water inlet hole 121 on the filter element cover 12, the water flows into the filter element shell 11, and then can flow into the accommodating cavity 133 of the filter material box 13. The filter material in the accommodating cavity 133 filters the water flow, and the treated water flow will flow out of the accommodating cavity 133, and finally flow out of the filter element 1 through the water outlet hole 122 of the filter element cover 12, thereby completing the filtering of the water flow by the filter element 1.

[0144] Among them, a limiting structure 111 is provided in the filter element shell 11, and the limiting structure 111 is used to limit the filter box 13. The limiting structure 111 can limit and fix the filter box 13 to avoid the position change of the filter box 13 during use, thereby improving the structural stability of the filter box 13 in the filter element 1 and ensuring the filtering effect of the filter material in the filter box 13 on the water flow.

[0145] For example, a third sealing ring 127 is provided at the connection between the filter element cover 12 and the filter element shell 11. The third sealing ring 127 can seal the connection between the filter element cover 12 and the filter element shell 11 to prevent water flow inside the filter element 1 from leaking out from the connection between the filter element cover 12 and the filter element shell 11, thereby ensuring the normal use of the filter element 1.

[0146] The outer wall of the filter box 13 is spaced apart from the inner wall of the filter cartridge shell 11, so that there is a certain gap between the outer wall of the filter box 13 and the inner wall of the filter cartridge shell 11, which can facilitate the removal of the filter box 13 from the filter cartridge shell 11 and the installation of the filter box 13, thereby improving the overall assembly efficiency.

[0147] According to some embodiments of the present invention, referring to Figure 18-Figure 21 The inner wall of the filter cartridge shell 11 opposite to the open end of the filter cartridge shell 11 is the shell bottom wall 112, and the limiting structure 111 is arranged on the shell bottom wall 112, so that the limiting structure 111 can have a better limiting and fixing effect on the filter material box 13, which is convenient for the installation and disassembly of the filter material box 13, and at the same time, the connection between the limiting structure 111 and the filter cartridge shell 11 can be more reliable.

[0148] According to some embodiments of the present invention, referring to Figure 18-Figure 21 The limiting structure 111 is located at the outer peripheral side of the filter box 13 and is suitable for contacting the outer peripheral wall of the filter box 13. The limiting structure 111 can limit and fix the filter box 13, improve the structural stability of the filter box 13 in the filter element 1, and ensure the filtering effect of the filter material in the filter box 13 on the water flow.

[0149] For example, the filter box 13 and the filter element shell 11 can both be cylindrical structures, and the limiting structure 111 is located on the outer peripheral side of the filter box 13 and abuts against the outer peripheral wall of the filter box 13, so that the central axis of the filter box 13 and the central axis of the filter element shell 11 can coincide with each other, thereby improving the assembly stability between the filter box 13 and the filter element shell 11.

[0150] According to some embodiments of the present invention, referring to Figure 18-Figure 21 and Figure 22-Figure 24 The limiting structure 111 includes a plurality of limiting convex ribs 111a, which are arranged at intervals along the circumference of the filter box 13. In this way, the plurality of limiting convex ribs 111a cooperate with each other to jointly limit and fix the filter box 13, which can ensure the fixing effect of the limiting structure 111 on the filter box 13 as a whole, and at the same time make the force of the filter box 13 more uniform, improve the stability of the filter box 13 in the filter element 1, and ensure the filtering effect of the filter element 1 as a whole.

[0151] For example, the limiting structure 111 may include six limiting ribs 111a, and the six limiting ribs 111a may be evenly spaced along the circumference of the filter box 13, which can better ensure the fixing effect of the limiting structure 111 on the filter box 13 and improve the stability of the filter box 13 in the filter element 1.

[0152] According to some embodiments of the present invention, referring to Figure 18-Figure 21 and Figure 22-Figure 24 The limiting rib 111a has a guide surface 111b and a limiting surface 111c. The guide surface 111b is connected to the side of the limiting surface 111c adjacent to the filter element cover 12. The guide surface 111b extends obliquely from the open end of the filter element housing 11 to the bottom wall 112 of the housing toward the direction of the central axis of the filter element housing 11. In this way, when the filter material box 13 is installed in the filter element housing 11, the guide surface 111b can guide the movement of the filter material box 13, which can facilitate the rapid positioning of the filter material box 13 as a whole, and is conducive to the assembly between the limiting structure 111 and the filter material box 13.

[0153] There is an angle between the limiting surface 111c and the guide surface 111b, and the limiting surface 111c is suitable for abutting against the outer peripheral wall of the filter box 13. The limiting surfaces 111c of multiple limiting ribs 111a all abut against the outer peripheral wall of the filter box 13, so that the limiting structure 111 can limit and fix the filter box 13, thereby improving the structural stability of the filter box 13 in the filter element 1.

[0154] According to some embodiments of the present invention, referring to Figure 18-Figure 21 and Fig.25 The outer peripheral wall of the filter box 13 includes a guide wall 132a, which is located at the lower part of the filter box 13 and connected to the bottom wall of the filter box 13. The guide wall 132a extends obliquely from the open end of the filter cartridge housing 11 to the bottom wall 112 of the housing toward the direction of the central axis of the filter box 13. During the installation of the filter box 13 to the filter cartridge housing 11, the guide wall 132a cooperates with the guide surface 111b to guide the movement of the filter box 13, ensuring that the filter box 13 moves along the oblique extension direction of the guide surface 111b, so that the movement of the filter box 13 during the installation process is more stable.

[0155] According to some embodiments of the present invention, referring to Figure 22-Figure 24 The limiting structure 111 is integrally formed with the filter cartridge shell 11, which can improve the structural strength and rigidity of the connection between the limiting structure 111 and the filter cartridge shell 11, make the connection between the limiting structure 111 and the filter cartridge shell 11 more reliable, and facilitate the installation and disassembly between the filter cartridge shell 11 and the filter material box 13, thereby improving the overall assembly efficiency of the filter cartridge 1.

[0156] According to some embodiments of the present invention, referring to Figure 18-Figure 21 and Fig.25 The bottom surface of the filter box 13 is formed with a plurality of support ribs 132b arranged at intervals along the circumference of the filter box 13, and the support ribs 132b are supported on the shell bottom wall 112. The support ribs 132b can support the filter box 13, supporting the filter box 13 on the shell bottom wall 112, and at the same time, the support ribs 132b can improve the structural strength and rigidity of the filter box 13. Compared with the bottom surface of the filter box 13 directly supported on the shell bottom wall 112, the support ribs 132b can ensure the flatness of the bottom surface of the filter box 13, avoid the filter box 13 from tilting as a whole, and improve the stability of the overall structure.

[0157] For example, the support rib 132b can be integrally formed with the filter box 13, which can improve the overall structural strength and rigidity of the filter box 13, make the connection between the support rib 132b and the filter box 13 more reliable, and facilitate the installation and disassembly of the filter box 13 as a whole.

[0158] According to some embodiments of the present invention, referring to Figure 18-Figure 21 and Fig.25 There are three supporting ribs 132b, which are arranged in a triangle, which can better ensure the flatness of the bottom surface of the filter box 13 and improve the stability of the overall structure. The three supporting ribs 132b are arranged in a triangle, which can make the force on the filter box 13 more uniform and better ensure the stability of the filter box 13.

[0159] The filter element assembly 10 according to three specific embodiments of the present invention is described below with reference to the accompanying drawings.

[0160] Embodiment 1,

[0161] like Figure 9-11 and Figure 18-19 As shown, the filter element assembly 10 includes a socket 2 and a filter element 1, and a water inlet interface 22 and a water outlet interface 23 are formed on the socket 2, and the water inlet interface 22 is connected to the exchange outlet 42. The filter element assembly 10 can be completely arranged inside the housing 40, or the socket 2 of the filter element assembly 10 is arranged inside the housing 40, and the filter element 1 is arranged outside the housing 40.

[0162] A first installation cavity 24, a second installation cavity 25 and a connecting cavity 26 are formed in the socket 2, and the first installation cavity 24 and the second installation cavity 25 are separated from each other. The socket 2 includes a valve assembly 21, and the valve assembly 21 is used to control the connection and isolation of the water path between the socket 2 and the filter element 1. After the filter element 1 and the socket 2 are assembled, the filter element 1 is in contact with the valve assembly 21, and the valve assembly 21 is in a conducting state, and the water path between the socket 2 and the filter element 1 is connected; after the filter element 1 and the socket 2 are separated, the valve assembly 21 is in a cut-off state, and the water path between the socket 2 and the filter element 1 is isolated by the valve assembly 21. A push rod 3 is provided on the socket 2.

[0163] The valve assembly 21 includes a first stop valve 211 and a second stop valve 212. The first stop valve 211 is disposed in the first installation cavity 24. Two fourth sealing rings 215 are disposed between the first stop valve 211 and the first installation cavity 24 to achieve sealing between the first stop valve 211 and the first installation cavity 24. The first stop valve 211 includes a first valve seat 211a, a first valve core 211b and a first spring 211c. A first communication channel 213 communicating with the water inlet interface 22 is formed in the first valve seat 211a. The first valve core 211b is movably disposed in the first communication channel 213. Two fifth sealing rings 211d are disposed between the first valve core 211b and the first valve seat 211a.

[0164] The first valve core 211b has a first position and a second position, and the first valve core 211b is movable between the first position and the second position. After the filter element 1 is separated from the socket 2, the first valve core 211b is located in the second position; when the filter element 1 is assembled with the socket 2, the first valve core 211b is located in the first position. One end of the first spring 211c is connected to the first valve core 211b, and the other end is connected to the first valve seat 211a. After the filter element 1 is separated from the socket 2, the first spring 211c can switch the first valve core 211b from the first position to the second position by acting on the elastic force of the first valve core 211b.

[0165] The second stop valve 212 is disposed in the second installation cavity 25, and two sixth sealing rings 216 are disposed between the second stop valve 212 and the second installation cavity 25 to achieve sealing between the second stop valve 212 and the second installation cavity 25. The second stop valve 212 includes a second valve seat 212a, a second valve core 212b, and a second spring 212c. A second communication channel 214 communicating with the water outlet interface 23 is formed in the second valve seat 212a. The second valve core 212b is movably disposed in the second communication channel 214. Two seventh sealing rings 212d are disposed between the second valve core 212b and the second valve seat 212a.

[0166] The second valve core 212b has a third position and a fourth position, and the second valve core 212b is movable between the third position and the fourth position. After the filter element 1 is separated from the socket 2, the second valve core 212b is located in the fourth position; when the filter element 1 is assembled with the socket 2, the second valve core 212b is located in the third position. One end of the second spring 212c is connected to the second valve core 212b, and the other end is connected to the second valve seat 212a. After the filter element 1 is separated from the socket 2, the second spring 212c can switch the second valve core 212b from the third position to the fourth position by acting on the elastic force of the second valve core 212b.

[0167] The filter element 1 comprises a filter element shell 11, a filter element cover 12, a filter material box 13 and a water sealing structure 14. The inner wall of the filter element shell 11 opposite to the open end of the filter element shell 11 is a shell bottom wall 112, and a limiting structure 111 is arranged in the shell bottom wall 112 of the filter element shell 11. The limiting structure 111 is used to limit the filter material box 13. The limiting structure 111 comprises six limiting convex ribs 111a, and the six limiting convex ribs 111a are evenly spaced along the circumference of the filter material box 13. The limiting convex rib 111a has a guide surface 111b and a limiting surface 111c, and the guide surface 111b is connected to the side of the limiting surface 111c adjacent to the filter element cover 12, and the guide surface 111b extends obliquely from the open end of the filter element shell 11 to the shell bottom wall 112 toward the direction of the central axis of the filter element shell 11, and the guide surface 111b can guide the movement of the filter material box 13. An included angle is formed between the limiting surface 111 c and the guiding surface 111 b , and the limiting surface 111 c is suitable for abutting against the outer peripheral wall of the filter box 13 .

[0168] The filter element cover 12 is disposed on the open end of the filter element housing 11, and a first sealing ring 27 is disposed at the connection between the filter element cover 12 and the filter element housing 11. The filter element cover 12 is formed with a water inlet hole 121 and a water outlet hole 122, and the water inlet hole 121 is located on the outer peripheral side of the water outlet hole 122. Water can flow into the filter element 1 from the water inlet hole 121 of the filter element cover 12, and after flowing and filtering inside the filter element 1, it flows out from the water outlet hole 122 of the filter element cover 12. The filter element cover 12 includes a cover body 123 and a water outlet column 124. A water inlet channel 125 is defined between the water outlet column 124 and the cover body 123. The water inlet channel 125 is connected to the water inlet hole 121. A water outlet channel 126 is formed on the water outlet column 124. The water outlet channel 126 is connected to the water outlet hole 122. A one-way valve 15 is provided in the water outlet channel 126. The one-way valve 15 can ensure the flow direction of water in the water outlet channel 126. A second sealing ring 151 is provided between the one-way valve 15 and the water outlet channel 126. A first positioning groove 123a is formed on the inner peripheral wall of the cover body 123.

[0169] The filter material box 13 is arranged in the filter element shell 11, and the filter material box 13 includes a box body 132 and a box cover 131. A receiving chamber 133 is defined between the box body 132 and the box cover 131, and the receiving chamber 133 is used to receive the filter material. The side of the box body 132 facing the filter element cover 12 is open, and the box cover 131 is covered on the open end of the box body 132. The box cover 131 includes a cover body 131a and a matching portion 131b, and the matching portion 131b is arranged on one side of the cover body 131a in the thickness direction. The matching portion 131b is accommodated in the box body 132, and the matching portion 131b abuts against the inner peripheral wall of the box body 132. The cover body 131a covers the open end of the box body 132, and a slow release hole 134 is formed on the cover body 131a, and the water flow is suitable for flowing into or out of the receiving chamber 133 through the slow release hole 134, and the slow release hole 134 is opposite to the water outlet hole 122. A support structure 135 is disposed on the box cover 131 . The support structure 135 includes four support ribs 135 a . The four support ribs 135 a are spaced apart along the circumference of the box cover 131 and are located on the outer circumference of the slow-release hole 134 .

[0170] The outer peripheral wall of the box body 132 includes a guide wall 132a, which is located at the lower part of the box body 132 and connected to the bottom wall of the box body 132. The guide wall 132a extends obliquely from the open end of the filter cartridge housing 11 to the shell bottom wall 112 toward the direction of the central axis of the adjacent filter material box 13. When the filter material box 13 is installed in the filter cartridge housing 11, the guide wall 132a cooperates with the guide surface 111b. The bottom surface of the box body 132 is formed with three support ribs 132b arranged at intervals along the circumference of the box body 132. The three support ribs 132b are arranged in a triangular shape, and the support ribs 132b are supported on the shell bottom wall 112.

[0171] The water-sealing structure 14 is used to open and close the water inlet hole 121, and the water-sealing structure 14 includes a water-stopping pad 141, a water-stopping spring 142, and a spring pressure cover 143. The water-stopping pad 141 can move to open or close the water inlet hole 121, and a second positioning groove 141a is formed on the water-stopping pad 141. The water-stopping spring 142 is sleeved on the outer peripheral side of the water outlet column 124, one end of the water-stopping spring 142 is connected to the water-stopping pad 141 and the other end of the water-stopping spring 142 is connected to the spring pressure cover 143, and the water-stopping spring 142 is suitable for pushing the water-stopping pad 141 to close the water inlet hole 121. One end of the water-stopping spring 142 connected to the water-stopping pad 141 is accommodated in the second positioning groove 141a. The spring pressure cover 143 is fixedly mounted on the first positioning groove 123a of the cover body 123, and a spring baffle 143a is provided on the spring pressure cover 143. One end of the water stop spring 142 connected to the spring pressure cover 143 is located on the inner peripheral side of the spring baffle 143a. A water hole 143b is formed on the spring pressure cover 143, and the water hole 143b is formed on the outer peripheral side of the spring baffle 143a. The support rib 135a on the box cover 131 abuts against the spring pressure cover 143 in the axial direction of the filter element housing 11.

[0172] When the filter element 1 is installed on the socket 2, the water inlet hole 121 is suitable for communicating with the water inlet interface 22, and the water outlet hole 122 is suitable for communicating with the water outlet interface 23. The top rod 3 on the socket 2 can push the water stop pad 141, and the thrust of the top rod 3 on the water stop pad 141 is greater than the elastic force of the water stop spring 142 on the water stop pad 141, so that the water stop pad 141 opens the water inlet hole 121.

[0173] When installing the filter element assembly 10, first fill the filter material into the box body 132 of the filter element box 13, then cover the box cover 131 on the open end of the box body 132, then install the filter element box 13 as a whole in the filter element shell 11, fix the filter element box 13 through the limiting structure 111 of the filter element shell 11, then combine the water stop pad 141, the water stop spring 142 and the spring pressure cover 143, and fix the spring pressure cover 143 to the first positioning groove 123a of the filter element cover 12, and then cover the filter element cover 12 with the water sealing structure 14 installed on the open end of the filter element shell 11, thereby completing the assembly of the filter element 1. Finally, install the assembled filter element 1 to the socket 2, and the filter element assembly 10 is installed.

[0174] When the filter element 1 is assembled with the socket 2, the valve assembly 21 is in a conducting state, the first valve core 211b is in the first position and the second valve core 212b is in the third position, the first connecting channel 213 connects the water inlet interface 22 and the water inlet hole 121, the second connecting channel 214 connects the water outlet interface 23 and the water outlet hole 122, and the first connecting channel 213 and the second connecting channel 214 are both isolated from the connecting chamber 26. The water flowing out of the exchange outlet 42 can flow into the first connecting channel 213 from the water inlet interface 22 of the socket 2, and after flowing through the first connecting channel 213, it flows into the water inlet hole 121 of the filter element 1, and then the water flows into the water inlet channel 125, and after flowing through the box cover 131 of the filter material box 13, the water flows into the accommodating chamber 133 through the slow-release hole 134, and contacts the filter material in the accommodating chamber 133, so that the filter material inside the accommodating chamber 133 is slowly released and dissolved, and the slowly released filter material solution can be used to release the filter material solution through the slow-release hole 1 34 flows out of the accommodating chamber 133 and is released in the water flow around the slow-release hole 134, thereby optimizing the water flow. Subsequently, the optimized water flow flows into the water outlet channel 126, flows to the water outlet hole 122 through the water outlet channel 126, and flows out of the filter element 1 from the water outlet hole 122, and then flows into the second connecting channel 214. After flowing through the second connecting channel 214, it flows out from the water outlet interface 23 of the socket 2, thereby achieving the filtering effect of the filter element assembly 10 on the water flow.

[0175] After the filter element 1 is separated from the socket 2, the valve assembly 21 is in the cut-off state, the first valve core 211b is in the second position and the second valve core 212b is in the fourth position, the first communication channel 213 is isolated from the water inlet hole 121, the second communication channel 214 is isolated from the water outlet hole 122, and the first communication channel 213 and the second communication channel 214 are connected through the communication cavity 26. The water flowing out of the exchange outlet 42 can flow into the socket 2 through the water inlet interface 22, and then flow through the first communication channel 213, the communication cavity 26, and the second communication channel 214 in sequence, and then flow out of the socket 2 through the water outlet interface 23.

[0176] Embodiment 2:

[0177] like Figure 12-14 and Figure 20-21 As shown, the structure of this embodiment is roughly the same as that of embodiment one, wherein the same components are marked with the same figure marks, and the only difference is that the top rod 3 that pushes the water stop pad 141 to open the water inlet hole 121 is fixed to the water stop pad 141, and when the filter element 1 is installed on the connecting seat 2, the connecting seat 2 can push the top rod 3 to move, so that the top rod 3 pushes the water stop pad 141, and the thrust of the top rod 3 on the water stop pad 141 overcomes the elastic force of the water stop spring 142 on the water stop pad 141, so that the water stop pad 141 opens the water inlet hole 121.

[0178] Embodiment 3,

[0179] like Figure 6-Figure 8 and Fig.18 As shown, the structure of this embodiment is substantially the same as that of the first embodiment, wherein the same components are marked with the same figures, and the only difference is that there is no push rod 3 in the filter element assembly 10, and when the filter element 1 is installed on the socket 2, the water inlet pressure at the water inlet hole 121 can be used to push the water stop pad 141, so that the water stop pad 141 opens the water inlet hole 121.

[0180] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0181] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water heater assembly, characterized in that: include: A water heater, comprising a housing and a heat exchanger for heating water, wherein the heat exchanger is disposed in the housing and has an exchange inlet and an exchange outlet; A filter element assembly, the filter element assembly includes a socket and a filter element, the socket is formed with a water inlet interface and a water outlet interface, the water inlet interface is connected to the exchange outlet, the filter element is detachably connected to the socket, the filter element has a water inlet hole and a water outlet hole, the water inlet hole is suitable for communicating with the water inlet interface, the water outlet hole is suitable for communicating with the water outlet interface, and the filter material in the filter element is a slow-release filter material.

2. The water heater assembly according to claim 1, characterized in that: The filter element assembly is located outside the water heater.

3. The water heater assembly according to claim 1, characterized in that: The socket is at least located inside the housing, and at least a portion of the filter element is located outside the water heater.

4. The water heater assembly according to claim 3, characterized in that: The entire socket is located in the shell, and the portion of the filter element that matches the socket is located in the shell.

5. The water heater assembly according to claim 1, characterized in that: include: A water mixing valve is connected between the heat exchanger and the filter element assembly.

6. The water heater assembly according to claim 5, characterized in that The water mixing valve has a first inlet, a second inlet and a water mixing outlet, the second inlet is connected to the exchange outlet, and the water mixing outlet is connected to the water inlet interface.

7. The water heater assembly according to claim 1, characterized in that: include: A water mixing valve is connected to the downstream side of the filter element assembly.

8. The water heater assembly according to claim 7, characterized in that The water mixing valve has a first inlet, a second inlet and a water mixing outlet, and the second inlet is connected to the water outlet interface.

9. The water heater assembly according to claim 1, characterized in that: A valve assembly is provided in the socket, and the valve assembly has an on state and a off state; Wherein, after the filter element is assembled with the socket, the valve assembly is in the conducting state, the water inlet is communicated with the water inlet interface, and the water outlet is communicated with the water outlet interface; After the filter element is separated from the socket, the valve assembly is in the cut-off state, the water inlet hole is isolated from the water inlet interface, and the water outlet hole is isolated from the water outlet interface.

10. The water heater assembly according to claim 9, characterized in that When the filter element is assembled with the socket, the filter element contacts and cooperates with the valve assembly, so that the valve assembly switches from the cut-off state to the conduction state.

11. The water heater assembly according to claim 9, characterized in that In the on state, the water inlet interface is isolated from the water outlet interface; in the off state, the water inlet interface is connected to the water outlet interface.

12. The water heater assembly according to claim 11, characterized in that A first installation cavity, a second installation cavity and a communication cavity are formed in the connection seat, the first installation cavity and the second installation cavity are separated from each other, the valve assembly includes a first stop valve and a second stop valve, the first installation cavity is provided with the first stop valve, the first stop valve includes a first valve seat and a first valve core, a first communication channel connected to the water inlet interface is formed in the first valve seat, the first valve core is movably arranged in the first communication channel between a first position and a second position, the second installation cavity is provided with the second stop valve, the second stop valve includes a second valve seat and a second valve core, a second communication channel connected to the water outlet interface is formed in the second valve seat, and the second valve core is movably arranged in the second communication channel between a third position and a fourth position; Wherein, when the valve assembly is in the conducting state, the first valve core is in the first position and the second valve core is in the third position, the first communication channel is connected with the water inlet interface and the water inlet hole, the second communication channel is connected with the water outlet interface and the water outlet hole, and the first communication channel and the second communication channel are both isolated from the communication cavity; When the valve assembly is in the cut-off state, the first valve core is in the second position and the second valve core is in the fourth position, the first communicating channel is separated from the water inlet hole, the second communicating channel is separated from the water outlet hole, and the first communicating channel is connected to the second communicating channel through the communicating cavity.

13. The water heater assembly according to claim 1, characterized in that The filter element includes a filter element shell, a filter element cover and a water sealing structure, the filter element cover is arranged at the open end of the filter element shell and is formed with the water inlet hole and the water outlet hole; the water sealing structure includes a water stop pad and a water stop spring, one end of the water stop spring is connected to the water stop pad and the other end is connected to the filter element cover, the water stop pad can move to open or close the water inlet hole, and the water stop spring is suitable for pushing the water stop pad to close the water inlet hole.

14. The water heater assembly according to claim 13, characterized in that The filter element includes a filter material box, which is arranged in the filter element shell. The filter material box has a accommodating cavity for accommodating filter material. The filter element cover includes a cover body and a water outlet column. A water inlet channel is defined between the water outlet column and the cover body. The water inlet channel is suitable for connecting the water inlet hole with the accommodating cavity. A water outlet channel is formed on the water outlet column. The water outlet channel is suitable for connecting the water outlet hole with the accommodating cavity. The water stop spring is sleeved on the outer peripheral side of the water outlet column.

15. The water heater assembly according to claim 13, characterized in that The filter element comprises a spring pressure cover, the inner peripheral wall of the filter element cover is formed with a first positioning groove, the spring pressure cover is installed and fixed in the first positioning groove, and the other end of the water stop spring is connected to the spring pressure cover.

16. The water heater assembly according to claim 13, wherein: A second positioning groove is formed on the water-stop pad, and one end of the water-stop spring is accommodated in the second positioning groove.

17. The water heater assembly of claim 13, wherein: The filter element assembly includes a push rod, which is inserted through the filter element cover and is movable relative to the filter element cover. When the filter element is assembled with the socket, the socket is suitable for driving the push rod to push the water stop pad to open the water inlet hole. After the filter element is separated from the socket, the water stop spring pushes the water stop pad to reset and close the water inlet hole.

18. The water heater assembly according to claim 17, characterized in that The push rod is connected and fixed to the connection seat or the water-stopping pad.

19. The water heater assembly of claim 1, wherein: The filter element comprises: Filter housing; A filter element cover, the filter element cover is arranged at the open end of the filter element shell and is formed with the water inlet hole and the water outlet hole; A filter material box is arranged in the filter element shell, and the filter material box has a accommodating cavity for accommodating filter material. The accommodating cavity is suitable for communicating with the water inlet hole and the water outlet hole. The filter material is a slow-release filter material. A slow-release hole is formed on the filter material box. Water is suitable for flowing into or out of the accommodating cavity through the slow-release hole. The slow-release hole is opposite to the water outlet hole.

20. The water heater assembly of claim 19, wherein: The filter material box includes a box body and a box cover, the box body is open on one side facing the filter element cover, the box cover is detachably covered on the open end of the box body, the slow-release hole is formed on the box cover, and the filter element cover is detachably covered on the open end of the filter element shell.

21. The water heater assembly of claim 20, wherein: The filter element includes a water sealing structure and a spring pressure cover, the spring pressure cover is installed and fixed on the inner wall of the filter element cover, the water sealing structure includes a water stop pad and a water stop spring, one end of the water stop spring is connected to the water stop pad and the other end is connected to the spring pressure cover, the water stop pad can move to open or close the water inlet hole, the water stop spring is suitable for pushing the water stop pad to close the water inlet hole, and a supporting structure is provided on the box cover, and the supporting structure abuts against the spring pressure cover in the axial direction of the filter element shell.

22. The water heater assembly of claim 21, wherein: The support structure includes a plurality of support ribs, which are arranged at intervals along the circumference of the box cover and are located on the outer peripheral side of the slow-release hole. The support ribs abut against the spring pressure cover in the axial direction of the filter element shell.

23. The water heater assembly of claim 1, wherein: The filter element comprises: Filter housing; A filter element cover, which is disposed on the open end of the filter element shell and is formed with a water inlet and a water outlet; A filter material box is arranged in the filter element shell, the filter material box has a receiving cavity for receiving filter material, and the receiving cavity is suitable for communicating with the water inlet and the water outlet; Wherein, a limiting structure is provided in the filter element shell, and the limiting structure is used to limit the filter material box.

24. The water heater assembly of claim 23, wherein: The limiting structure is located at the outer peripheral side of the filter box and is suitable for abutting against the outer peripheral wall of the filter box.

25. The water heater assembly of claim 24, wherein: The limiting structure includes a plurality of limiting convex ribs, and the plurality of limiting convex ribs are arranged at intervals along the circumference of the filter box.

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