Movement structure for water purifier and water purifier

Abstract

The utility model relates to water purification equipment technical field provides a machine core structure for water purifier and water purifier, the utility model provides a machine core structure for water purifier including water route board and middle frame structure, the water route board includes water route board body and the plug -in part of protruding at water route board body, the middle frame structure includes filter core frame body and sets up the end cover at filter core frame body one end, the side of end cover away from filter core frame body is equipped with the mounting groove, the bottom of mounting groove is equipped with the limiting cavity of communication with mounting groove, water route board body is at least partial embedding in mounting groove, the plug -in part limit setting is in limiting cavity. The limiting cooperation of plug -in part and limiting cavity and the design of water route board body's package type provide the steady support and fixed for water route board, have reduced the risk that water route board is impacted by external force, have strengthened the protection performance of water route board.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a core structure for a water purifier and a water purifier. Background Technology

[0002] With increasing public concern about drinking water quality, water purifiers, as essential devices for improving water quality, have become widely used. The water circuit board, used to transport water within the purifier, is a crucial component. However, traditional water purifiers lack adequate protection for the water circuit board, leaving it exposed outside the frame structure without effective safeguards. This makes it susceptible to displacement, deformation, or even damage from external impacts during transportation or use, affecting the water circuit's sealing and the purifier's reliability. Utility Model Content

[0003] This utility model provides a core structure for a water purifier and a water purifier in order to solve the problem that the water circuit board of traditional water purifiers is not adequately protected, which makes the water circuit board susceptible to external impacts and affects its performance.

[0004] The core structure for a water purifier provided by this utility model includes a water circuit board and a middle frame structure. The water circuit board includes a water circuit board body and a plug-in portion protruding from the water circuit board body. The middle frame structure includes a filter element frame and an end cap disposed at one end of the filter element frame. The end cap has a mounting groove on the side away from the filter element frame. The bottom of the mounting groove has a limiting cavity communicating with the mounting groove. The water circuit board body is at least partially embedded in the mounting groove, and the plug-in portion is limited and disposed in the limiting cavity.

[0005] In one embodiment, the plug-in portion includes a first plug-in portion and a second plug-in portion, which are jointly disposed on the side of the water channel plate body facing the middle frame structure, and the first plug-in portion and the second plug-in portion are respectively disposed at both ends of the water channel plate body; the limiting cavity includes a first limiting cavity and a second limiting cavity, with the first plug-in portion limited and disposed in the first limiting cavity, and the second plug-in portion limited and disposed in the second limiting cavity.

[0006] In one embodiment, the filter element frame includes a first frame and a second frame spaced apart. The first frame has a first receiving cavity for accommodating a first filter element, and the second frame has a second receiving cavity for accommodating a second filter element. A first limiting cavity is connected to the first receiving cavity. The projected area of ​​the first limiting cavity in the axial direction is larger than the projected area of ​​the first receiving cavity in the axial direction, so that a first limiting step is formed at the junction of the first limiting cavity and the first receiving cavity, and the first insertion part abuts against the first limiting step. A second limiting cavity is connected to the second receiving cavity. The projected area of ​​the second limiting cavity in the axial direction is larger than the projected area of ​​the second receiving cavity in the axial direction, so that a second limiting step is formed at the junction of the second limiting cavity and the second receiving cavity, and the second insertion part abuts against the second limiting step.

[0007] In one embodiment, the water circuit board body is provided with a water flow pipe, the water flow pipe having a first water inlet communicating with the first receiving cavity and a second water inlet communicating with the second receiving cavity, the first plug-in portion being arranged around the first water inlet, and the second plug-in portion being arranged around the second water inlet.

[0008] In one embodiment, the water circuit board body is connected to an inlet connector and an outlet connector, which are connected to the water flow pipe. The inlet connector and the outlet connector are located on the side of the water circuit board body facing the filter element frame, and the inlet connector and the outlet connector pass through the end cap and partially protrude from the end cap.

[0009] In one embodiment, the inlet connector and the outlet connector are located between the first frame and the second frame.

[0010] In one embodiment, the water circuit board body has a first side and a second side. The first side faces the filter element frame, and the second side is opposite to the first side. The pipe wall of the water flow pipe protrudes from the second side. A protective structure protrudes from the second side, and the distance by which the protective structure protrudes from the second side is at least equal to the distance by which the pipe wall of the water flow pipe protrudes from the second side.

[0011] In one embodiment, the protective structure includes a mesh structure, which includes a transverse baffle and a longitudinal baffle. The longitudinal baffle is located close to the water flow pipe and extends along the length of the water flow pipe. The transverse baffle intersects with the longitudinal baffle and the water flow pipe.

[0012] In one embodiment, the middle frame structure further includes a third frame body connected between the first frame body and the second frame body, and the third frame body has an internal mounting cavity for mounting the pump body.

[0013] This utility model also proposes a water purifier, which includes a housing and the aforementioned core structure for water purification, wherein the core structure is connected to the housing.

[0014] Traditional water purifiers typically expose the water circuit board to the outside of the frame structure, lacking effective protection. This technical solution addresses this by providing a protruding insertion part on the water circuit board body and a mounting groove on the end cap of the frame structure to accommodate the water circuit board body. A limiting cavity communicating with the mounting groove is located at the bottom of the groove. The water circuit board body is then at least partially embedded within the mounting groove, effectively encasing it and reducing the risk of external impacts. The insertion part is positioned within the limiting cavity, with its outer wall contacting and fitting against the inner wall of the cavity. This locking fit between the insertion part and the limiting cavity, along with the encasing design of the water circuit board body, provides stable support and fixation, preventing loosening due to external forces. Even if the water circuit board experiences bumps during transportation or impacts during use, it is less prone to displacement or deformation, thus improving the performance and reliability of the water purifier. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded view of an embodiment of the movement structure provided by this utility model; Figure 2 This is a schematic diagram of the middle frame structure in one embodiment of the movement structure provided by this utility model; Figure 3 This is a schematic diagram of the water circuit board in one embodiment of the movement structure provided by this utility model; Figure 4 yes Figure 3 A diagram from another perspective; Figure 5 This is a schematic diagram of the water channel plate and the middle frame structure after assembly in one embodiment of the mechanism structure provided by this utility model.

[0017] Explanation of reference numerals in the attached figures: 100. Core structure; 1. Water circuit board; 11. Water circuit board body; 111. First water outlet; 112. Second water outlet; 113. Protective structure; 1131. Horizontal baffle; 1132. Vertical baffle; 12. Insertion part; 121. First insertion part; 122. Second insertion part; 2. Middle frame structure; 21. Filter element frame; 211. First frame; 2111. First receiving cavity; 2112. First limiting step; 212. Second frame; 2121. Second receiving cavity; 2122. Second limiting step; 22. Third frame; 23. End cap; 231. Mounting groove; 232. Limiting cavity; 2321. First limiting cavity; 2322. Second limiting cavity; 3. Water inlet connector; 4. Water outlet connector. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] It should be noted that the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to direct setup or connection, or indirect setup or connection through centered components or centered structures.

[0020] Furthermore, in embodiments of this utility model, terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or in a conventional placement or usage state. These terms are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure, feature, device, or element referred to must have a specific orientation or positional relationship, nor that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0021] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this utility model will not be described separately.

[0022] With increasing public concern about drinking water quality, water purifiers, as essential devices for improving water quality, have become widely used. The water circuit board, used to transport water within the purifier, is a crucial component. However, traditional water purifiers lack adequate protection for the water circuit board, leaving it exposed outside the frame structure without effective safeguards. This makes it susceptible to displacement, deformation, or even damage from external impacts during transportation or use, affecting the water circuit's sealing and the purifier's reliability.

[0023] To solve this problem, this utility model proposes a core structure for a water purifier.

[0024] like Figures 1 to 5 As shown, the core structure 100 provided by this utility model includes a water channel plate 1 and a middle frame structure 2. The water channel plate 1 includes a water channel plate body 11 and an insertion part 12 protruding from the water channel plate body 11. The middle frame structure 2 includes a filter element frame 21 and an end cap 23 disposed at one end of the filter element frame 21. The end cap 23 is provided with an installation groove 231 on the side away from the filter element frame 21. The bottom of the installation groove 231 is provided with a limiting cavity 232 communicating with the installation groove 231. The water channel plate body 11 is at least partially embedded in the installation groove 231, and the insertion part 12 is limitedly disposed in the limiting cavity 232.

[0025] The core structure 100 is designed for use in water purifiers. Traditional water purifiers typically expose the water circuit board outside the frame structure, lacking effective protection. This technical solution addresses this by providing a protruding insertion portion 12 on the water circuit board body 11 and a mounting groove 231 on the end cap 23 of the frame structure 2 to accommodate the water circuit board body 11. A limiting cavity 232 communicating with the mounting groove 231 is located at the bottom of the mounting groove 231. By embedding the water circuit board body 11 at least partially within the mounting groove 231, effective enclosure of the water circuit board 1 is achieved. The water circuit board 1 is no longer completely exposed outside the frame structure 2, reducing the risk of external impact and enhancing its protective performance. The insertion part 12 is positioned within the limiting cavity 232, meaning the outer wall of the insertion part 12 contacts and fits against the inner wall of the limiting cavity 232. This positioning fit between the insertion part 12 and the limiting cavity 232, along with the enveloping design of the water circuit board body 11, provides stable support and fixation for the water circuit board 1, preventing loosening caused by external forces. Even if the water circuit board 1 encounters bumps during transportation or is subjected to external impacts during use, it is not easily displaced or deformed, thus improving the performance and reliability of the water purifier.

[0026] The plug-in part 12 can be integrally formed with the water circuit board body 11. The integrally formed structure can avoid the connection between the plug-in part 12 and the water circuit board body 11, reduce the risk of structural instability caused by loosening or damage of the connection part, and ensure the stability of the entire water circuit board 1.

[0027] Specifically, the end cap 23 includes an end plate and a protective plate. The protective plate protrudes from the side of the end plate opposite to the filter element frame 21. The protective plate includes a first baffle and a second baffle, as well as a third baffle and a fourth baffle, arranged opposite to each other. The end plate, the first baffle, the second baffle, the third baffle, and the fourth baffle form an installation groove 231. The water channel plate body 11 has a first end wall and a second end wall, as well as a third end wall and a fourth end wall, arranged opposite to each other. The water channel plate body 11 is embedded in the installation groove 231, and is fitted to the end plate. The first end wall is fitted to the first baffle, the second end wall is fitted to the second baffle, the third end wall is fitted to the third baffle, and the fourth end wall is fitted to the fourth baffle. The end cap 23, through the four baffles of the protective plate, wraps around the water channel plate 1 from four directions, effectively preventing the water channel plate 1 from being subjected to external impacts or collisions during transportation or use, reducing the risk of damage. Furthermore, the water circuit board body 11 is fitted to the end plate, and the end wall of the water circuit board body 11 is fitted to the baffle of the protective plate respectively. The water circuit board 1 is tightly fixed in the mounting groove 231, which reduces displacement or loosening caused by external force and improves the structural stability of the entire water purifier core.

[0028] The recessed depth of the mounting groove 231 can be equal to or greater than the thickness of the water circuit board body 11, so that the water circuit board body 11 can be completely wrapped around its sides. In this case, the protective plate provides strong protection for the water circuit board body 11. Alternatively, the recessed depth of the mounting groove 231 can be less than the thickness of the water circuit board body 11 but greater than half the thickness of the water circuit board body 11. In this case, the protective plate partially wraps around the water circuit board body 11, which can also provide a certain degree of protection for the water circuit board body 11.

[0029] In this technical solution, the plug-in portion 12 may include a first plug-in portion 121 and a second plug-in portion 122. The first plug-in portion 121 and the second plug-in portion 122 are jointly disposed on one side of the water channel plate body 11 facing the middle frame structure 2, and the first plug-in portion 121 and the second plug-in portion 122 are respectively disposed at both ends of the water channel plate body 11. The limiting cavity 232 includes a first limiting cavity 2321 and a second limiting cavity 2322. The first plug-in portion 121 is limited and disposed in the first limiting cavity 2321, and the second plug-in portion 122 is limited and disposed in the second limiting cavity 2322.

[0030] In this embodiment, the shape and position of the first limiting cavity 2321 match the shape and position of the first insertion part 121, and the shape and position of the second limiting cavity 2322 match the shape and position of the second insertion part 122. This embodiment provides two positioning points for the water circuit board 1, ensuring that the water circuit board 1 is more accurately positioned in the predetermined position of the middle frame structure 2 during installation, effectively preventing the water circuit board 1 from rotating, tilting, or shifting after installation. The first insertion part 121 is inserted into the first limiting cavity 2321, and the second insertion part 122 is inserted into the second limiting cavity 2322. The outer wall of the first insertion part 121 contacts and fits against the inner wall of the first limiting cavity 2321, and the outer wall of the second insertion part 122 contacts and fits against the inner wall of the second limiting cavity 2322. Meanwhile, when the water purifier is subjected to external impact during transportation or use, the two connectors 12 can jointly withstand the external force, improving the impact resistance of the water circuit board 1. The water circuit board 1 and the end cap 23 can be fixed with screws or clips.

[0031] Reference Figure 2 In this technical solution, the filter element frame 21 may include a first frame 211 and a second frame 212 spaced apart. The first frame 211 has a first receiving cavity 2111 for accommodating the first filter element, and the second frame 212 has a second receiving cavity 2121 for accommodating the second filter element. When the first filter element is installed in the first receiving cavity 2111, it engages with the first insertion part 121. When the second filter element is installed in the second receiving cavity 2121, it engages with the second insertion part 122. The first and second filter elements may be, but are not limited to, activated carbon filters, PP cotton filters, or reverse osmosis filters. The first filter element is used for preliminary filtration of large particulate impurities and suspended solids in the water, while the second filter element is used for further filtration of the water after preliminary filtration by the first filter element, removing fine dissolved substances and harmful substances to ensure that the final water quality meets drinking standards.

[0032] The first limiting cavity 2321 is connected to the first receiving cavity 2111. The projected area of ​​the first limiting cavity 2321 in the axial direction is larger than that of the first receiving cavity 2111 in the axial direction, so that a first limiting step 2112 is formed at the junction of the first limiting cavity 2321 and the first receiving cavity 2111, and the first insertion part 121 abuts against the first limiting step 2112. Similarly, the second limiting cavity 2322 is connected to the second receiving cavity 2121. The projected area of ​​the second limiting cavity 2322 in the axial direction is larger than that of the second receiving cavity 2121 in the axial direction, so that a second limiting step 2122 is formed at the junction of the second limiting cavity 2322 and the second receiving cavity 2121, and the second insertion part 122 abuts against the second limiting step 2122. The projected area mentioned here refers to the vertical projected area.

[0033] For example, the first receiving cavity 2111, the second receiving cavity 2121, the first limiting cavity 2321, and the second limiting cavity 2322 can be cylindrical. The first limiting cavity 2321 is connected to the first receiving cavity 2111 and is concentrically arranged with the first receiving cavity 2111. The diameter of the first limiting cavity 2321 is larger than the diameter of the first receiving cavity 2111, so that a first limiting step 2112 is formed at the junction of the first limiting cavity 2321 and the first receiving cavity 2111. When the first insertion part 121 is inserted into the first limiting cavity 2321, the first limiting step 2112 abuts against the end face of the first insertion part 121, thereby achieving precise installation of the first insertion part 121. The second limiting cavity 2322 is connected to the second receiving cavity 2121 and is concentrically arranged with the second limiting cavity 2322 and the second receiving cavity 2121. The diameter of the second limiting cavity 2322 is larger than the diameter of the second receiving cavity 2121, so that a second limiting step 2122 is formed at the junction of the second limiting cavity 2322 and the second receiving cavity 2121. When the second insertion part 122 is inserted into the second limiting cavity 2322, the second limiting step 2122 abuts against the end face of the second insertion part 122, thereby achieving precise installation of the second insertion part 122.

[0034] In this technical solution, the water circuit board body 11 is provided with a water flow pipe (not shown), which is used to transport water to the first filter element and the second filter element. Specifically, the water flow pipe has a first water outlet 111 connecting to the first receiving cavity 2111 and a second water outlet 112 connecting to the second receiving cavity 2121. The first filter element is provided with a first water inlet, which connects to the first water outlet 111 when the first filter element is installed in the first receiving cavity 2111. The second filter element is provided with a second water inlet, which connects to the second water outlet 112 when the second filter element is installed in the second receiving cavity 2121. The first insertion part 121 is located near the first water outlet 111, and the second insertion part 122 is located near the second water outlet 112. By positioning the two connectors 12 near the water outlet, the position of the water outlet can be fixed and constrained by the cooperation between the connectors 12 and the limiting cavity 232, thus preventing leakage caused by slight misalignment of the water outlet due to external force or vibration.

[0035] Furthermore, the first insertion portion 121 and the second insertion portion 122 can be arranged in a ring shape, with the first insertion portion 121 surrounding the first water outlet 111 and the second insertion portion 122 surrounding the second water outlet 112. Correspondingly, the first limiting cavity 2321 and the second limiting cavity 2322 are cylindrical, thereby ensuring that the first insertion portion 121 can be inserted into the first limiting cavity 2321 and the second insertion portion 122 can be inserted into the second limiting cavity 2322, and the outer wall of the first insertion portion 121 is in contact with and fits against the inner wall of the first limiting cavity 2321, and the outer wall of the second insertion portion 122 is in contact with and fits against the inner wall of the second limiting cavity 2322. The engagement of the annular insertion part 12 with the cylindrical limiting cavity 232 provides 360° all-round restriction, so that the water outlet can be uniformly constrained in all directions, which can more effectively prevent the water outlet from being slightly misaligned due to external force or vibration, and further ensure the stability of the water outlet position.

[0036] Reference Figure 1 or Figure 2 The middle frame structure 2 may further include a third frame 22 connected between the first frame 211 and the second frame 212, with a mounting cavity formed inside the third frame 22 for mounting the pump body. The pump body is mounted between the first and second filter elements. Since the first and second filter elements typically have porous structures that can absorb sound wave energy, this effectively solves the noise propagation problem generated during pump operation in traditional water purifiers. Simultaneously, when the pump body vibrates, the first and second filter elements located on both sides of the pump body can absorb the vibration, thereby improving the shock absorption effect of the core structure 100.

[0037] In this technical solution, the first frame 211, the second frame 212, the third frame 22, and the end cap 23 can be integrally molded. This integral molding structure reduces the connections between components, lowers the risk of structural instability due to loosening or damage at connection points, and further ensures the stability of the water purifier during long-term use.

[0038] Reference Figure 3 and Figure 5 The water circuit board body 11 is connected to an inlet connector 3 and an outlet connector 4. The inlet connector 3 and the outlet connector 4 are connected to the water flow pipe on the water circuit board body 11. The inlet connector 3 and the outlet connector 4 are located on the side of the water circuit board body 11 facing the filter element frame 21, and the inlet connector 3 and the outlet connector 4 pass through the end cover 23 and partially protrude from the end cover 23.

[0039] The inlet connector 3 can be connected to an external pipe (such as a municipal water pipe), allowing tap water to flow smoothly from the external pipe into the water pipe, and then from the water pipe into the installed first or second filter element. The outlet connector 4 can be connected to a faucet or water storage container, used to guide the purified water treated by the filter element from inside the water purifier to the outside. Through the outlet connector 4, the purified water can be smoothly discharged from the outlet pipe and delivered to the user's desired location. In this embodiment, the inlet connector 3 and the outlet connector 4 are located on the side of the water circuit board body 11 facing the filter element frame 21, and are partially protruding from the end cap 23. On the one hand, this makes full use of the internal space and avoids increasing the volume due to the external placement of the connectors; on the other hand, the water circuit board 1 is located outside the inlet connector 3 and the outlet connector 4, which can provide a certain degree of physical protection for the inlet connector 3 and the outlet connector 4, protecting the connectors from direct impact and ensuring normal water flow and sealing performance.

[0040] Furthermore, the inlet connector 3 and the outlet connector 4 can be located between the first frame 211 and the second frame 212. Specifically, a clearance space is formed between the first frame 211, the second frame 212, the third frame 22, and the end cap 23. The inlet connector 3 and the outlet connector 4 protrude into this clearance space after passing through the end cap 23. With this arrangement, the first frame 211 and the second frame 212 can provide additional physical protection for the inlet connector 3 and the outlet connector 4, further improving the protection level of the inlet connector 3 and the outlet connector 4, significantly reducing the risk of damage to the connectors due to external forces, and ensuring that the connectors remain stable and safe under various adverse conditions (such as external impact, transportation bumps, and pump body vibration).

[0041] The water channel plate body 11 has a first side and a second side. The first side faces the filter element frame 21, and the second side faces away from the first side. The pipe wall portion of the water flow pipe protrudes from the second side. (Refer to...) Figure 4In order to protect the water pipe wall, a protective structure 113 is provided on the second side. The distance by which the protective structure 113 protrudes from the second side is at least equal to the distance by which the pipe wall of the water pipe protrudes from the second side.

[0042] The water circuit board body 11 can be a relatively thin plate, causing the pipe wall portion of the water flow pipe to protrude from the second side. In this embodiment, a protective structure 113 protrudes from the second side, and the distance by which the protective structure 113 protrudes from the second side is at least equal to the distance by which the pipe wall of the water flow pipe protrudes from the second side, so that the protective structure 113 can provide physical protection for the pipe wall of the water flow pipe. When the water purifier is subjected to bumps or external impacts during transportation or use, the protective structure 113 can resist the impact on the pipe wall of the water flow pipe, prevent damage to the pipe wall of the water flow pipe, and ensure the integrity and sealing of the water flow pipe.

[0043] For example, the protective structure 113 may include a grid structure, which includes several transverse baffles 1131 and several longitudinal baffles 1132. The longitudinal baffles 1132 are arranged close to the water flow pipe and extend along the length of the water flow pipe, while the transverse baffles 1131 and longitudinal baffles 1132 are arranged intersecting with the water flow pipe. The length direction of the longitudinal baffles 1132 is consistent with the length direction of the water flow pipe, and the transverse baffles 1131 and longitudinal baffles 1132 are arranged at an angle. The included angle between the transverse baffles 1131 and longitudinal baffles 1132 can be 90°, greater than 90°, or less than 90°. This embodiment uses a grid structure formed by the intersection of transverse baffles 1131 and longitudinal baffles 1132 as the protective structure 113, which can provide uniform protection for the pipe wall of the water flow pipe in multiple directions. When an external impact or collision occurs, the transverse baffle 1131 and the longitudinal baffle 1132 can jointly disperse and absorb the impact force, preventing the impact force from directly acting on the pipe wall of the water flow pipe and reducing the risk of pipe wall damage due to external forces. In addition, the transverse baffle 1131 and the longitudinal baffle 1132 intersect to form a grid structure, which can form a stable frame, enhance the structural stability of the entire water circuit board body 11, and effectively prevent the water circuit board body 11 from deforming or bending when subjected to external forces, thereby improving the structural strength and stability of the entire water circuit board 1.

[0044] Of course, in addition to being set as a grid structure, the protective structure 113 can also be designed as a segmented baffle or an intermittent protruding column. As long as the distance of the protective structure 113 protruding from the second side is equal to or greater than the distance of the pipe wall protruding from the second side, it can protect the pipe wall of the water flow pipe and prevent it from being impacted or damaged by external forces.

[0045] Among them, the protective structure 113 can be integrally formed with the water circuit board body 11. The integrally formed structure reduces the connection between parts, reduces the risk of structural instability caused by loosening or damage of the connection parts, and improves the structural strength of the entire water circuit board 1.

[0046] This utility model also proposes a water purifier, which includes a housing and a core structure 100. The core structure 100 is connected to the housing. The specific structure of the core structure 100 is as described in the above embodiments. Since this water purifier adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The housing has an inner cavity and an opening communicating with the inner cavity. When the core structure 100 is assembled with the housing, the water circuit board body 11 can cover the opening, thus serving as part of the housing.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A core structure for a water purifier, characterized in that, include: A water channel board, the water channel board including a water channel board body and a plug portion protruding from the water channel board body; The middle frame structure includes a filter element frame and an end cap disposed at one end of the filter element frame. The end cap has an installation groove on the side away from the filter element frame. The bottom of the installation groove has a limiting cavity communicating with the installation groove. The water circuit board body is at least partially embedded in the installation groove, and the plug-in portion is limited in the limiting cavity.

2. The core structure for a water purifier as described in claim 1, characterized in that, The plug-in portion includes a first plug-in portion and a second plug-in portion. The first plug-in portion and the second plug-in portion are jointly disposed on the side of the water channel plate body facing the middle frame structure, and the first plug-in portion and the second plug-in portion are respectively disposed at both ends of the water channel plate body. The limiting cavity includes a first limiting cavity and a second limiting cavity, with the first insertion part being limited in the first limiting cavity and the second insertion part being limited in the second limiting cavity.

3. The core structure for a water purifier as described in claim 2, characterized in that, The filter element frame includes a first frame and a second frame spaced apart. The first frame has a first receiving cavity for accommodating the first filter element, and the second frame has a second receiving cavity for accommodating the second filter element. The first limiting cavity is connected to the first receiving cavity. The projected area of ​​the first limiting cavity in the axial direction is larger than the projected area of ​​the first receiving cavity in the axial direction, so that a first limiting step is formed at the junction of the first limiting cavity and the first receiving cavity, and the first insertion part abuts against the first limiting step. The second limiting cavity is connected to the second receiving cavity. The projected area of ​​the second limiting cavity in the axial direction is larger than the projected area of ​​the second receiving cavity in the axial direction, so that a second limiting step is formed at the junction of the second limiting cavity and the second receiving cavity, and the second insertion part abuts against the second limiting step.

4. The core structure for a water purifier as described in claim 3, characterized in that, The water circuit board body is provided with a water flow pipe, the water flow pipe has a first water flow port that connects to the first receiving cavity and a second water flow port that connects to the second receiving cavity, the first plug-in part is arranged around the first water flow port, and the second plug-in part is arranged around the second water flow port.

5. The core structure for a water purifier as described in claim 4, characterized in that, The water circuit board body is connected to an inlet connector and an outlet connector. The inlet connector and the outlet connector are connected to the water flow pipe. The inlet connector and the outlet connector are located on the side of the water circuit board body facing the filter element frame. The inlet connector and the outlet connector pass through the end cap and partially protrude from the end cap.

6. The core structure for a water purifier as described in claim 5, characterized in that, The water inlet connector and the water outlet connector are located between the first frame and the second frame.

7. The core structure for a water purifier as described in claim 4, characterized in that, The water circuit board body has a first side and a second side. The first side faces the filter element frame, and the second side is opposite to the first side. The pipe wall of the water flow pipe protrudes from the second side. The second side is provided with a protective structure, and the distance by which the protective structure protrudes from the second side is at least equal to the distance by which the pipe wall of the water flow pipe protrudes from the second side.

8. The core structure for a water purifier as described in claim 7, characterized in that, The protective structure includes a mesh structure, which includes a transverse baffle and a longitudinal baffle. The longitudinal baffle is located close to the water flow pipe and extends along the length of the water flow pipe. The transverse baffle is arranged to intersect with the longitudinal baffle and the water flow pipe.

9. The core structure for a water purifier as described in claim 3, characterized in that, The middle frame structure also includes a third frame, which is connected between the first frame and the second frame, and the third frame has an installation cavity for installing the pump body inside.

10. A water purifier, characterized in that, It includes a housing and a movement structure as described in any one of claims 1 to 9, the movement structure being connected to the housing.

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