Water purifying device and water heater
By using a combination of metal filter cartridges and plastic filter cartridges in the water purification device, the problems of difficult and high cost of processing of small-sized filter holes are solved, and the storage of a variety of water quality treatment materials and the improvement of the water quality of the water heater effluent is achieved.
Patent Information
- Application Number
- CN202422236651.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The small-sized filter holes of existing water purification devices are difficult and costly, and cannot effectively accommodate water quality treatment materials with different particle sizes, resulting in poor water quality of the water heater.
The filter cartridge made of metal and the filter cartridge made of plastic are combined. The filter cartridge is equipped with large-size through holes and the filter cartridge is equipped with small-size through holes, which respectively accommodate water quality treatment materials of different particle sizes. The filter cartridge is manufactured through the injection molding process to reduce processing difficulty and cost.
It realizes the low-cost and efficient storage of a variety of water quality treatment materials, and improves the effluent quality of the water heater.
Smart Images
Figure CN223082375U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating, in particular to a water purification device and a water heater. Background Art
[0002] In order to improve the water quality of the water outlet of the water heater, a water purification device is usually arranged in the inner tank in the related art. The water purification device is usually a structure with filter holes punched in the outer shell and used for installing water quality treatment materials inside.
[0003] In order to obtain better water purification effect, various different water quality treatment materials can be mixed and used together to achieve the water purification effect. In order to ensure reliability, the outer shell of the water purification device is generally made of metal material. Among the various water quality treatment materials used, there are some water quality treatment materials with larger particles, but there may also be some water quality treatment materials with smaller particles, which will result in the need for smaller filter hole sizes punched in the outer shell. However, opening smaller filter holes will lead to greater processing difficulty and higher processing cost. Summary of the Utility Model
[0004] One of the technical problems solved by the utility model is to provide a water purification device, which can effectively solve the problems of great processing difficulty and high processing cost of small-sized filter holes of the water purification device, so as to be able to accommodate water quality treatment materials with larger and smaller particles.
[0005] Another technical problem solved by the utility model is to provide a water heater, which can effectively solve the problem of poor water quality of the water outlet of the water heater.
[0006] The above first technical problem is solved by the following technical solutions:
[0007] A water purification device, comprising:
[0008] A filter cartridge, the filter cartridge is made of metal material, a plurality of first through holes communicating with the inner cavity of the filter cartridge are arranged on the outer periphery of the filter cartridge, one end of the filter cartridge is open, the other end of the filter cartridge is closed, and a connection seat is provided, and the connection seat is used for connecting to an external structure; and,
[0009] A filter box, the filter box plugs the open end of the filter cartridge, the filter box is made of plastic material, a plurality of second through holes communicating with the internal space of the filter box are arranged on the surface of the filter box, the second through holes communicate with the external space of the water purification device and / or the inner cavity of the filter cartridge, and the aperture of the second through hole is smaller than the aperture of the first through hole.
[0010] The water purification device of the utility model, compared with the background art, has the beneficial effects as follows:
[0011] By making the water purification device include a filter cartridge made of plastic, the filter cartridge with the second through holes having smaller apertures can accommodate water treatment materials with smaller particles, and since the material of the filter cartridge is plastic, the difficulty of opening holes is small and the processing cost is low; among them, the filter cylinder with the first through holes having larger apertures can be used to accommodate water treatment materials with larger particles. One end of the filter cylinder is open, which is convenient for placing water treatment materials, and the filter cartridge is installed at the open end of the filter cylinder to block the end of the filter cylinder, which can reduce the use of metal materials and further reduce the processing cost.
[0012] In addition, the filter cylinder is used to accommodate water treatment materials with larger particles, and the filter cartridge is used to accommodate water treatment materials with smaller particles, so that multiple different water treatment materials can be used together for water purification.
[0013] In one embodiment, the filter cartridge has opposite first and second ends, and the second end is the end of the filter cartridge close to the connection seat. The second through holes provided at the first end communicate between the inside of the filter cartridge and the external space of the water purification device, and the second through holes provided at the second end communicate between the internal space of the filter cartridge and the inner cavity of the filter cylinder.
[0014] In one embodiment, the total opening area of the second through holes at the first end is smaller than the total opening area at the second end.
[0015] In one embodiment, the filter cartridge includes a first part and a second part that are separately provided. The first part includes a first plate body and a first surrounding wall provided around the first plate body. The second part includes a second plate body and a second surrounding wall provided around the second plate body. The second plate body is spaced opposite to the first plate body, the second surrounding wall is sleeved on the outer periphery of the first surrounding wall, and the second part is connected to the filter cylinder;
[0016] The second plate body is located on the side of the first plate body away from the connection seat, or the second plate body is located on the side of the first plate body close to the connection seat.
[0017] In one embodiment, at least one of the first part and the second part is provided with a clamping structure, and the clamping structure clamps the other.
[0018] In one embodiment, a clamping convex is provided at one end of the second surrounding wall away from the second plate body, and the clamping convex protrudes towards the inside of the second part, and the clamping convex abuts against the first part;
[0019] A clamping groove is provided at the edge of one end of the first part away from the second plate body, and the clamping convex is clamped in the clamping groove.
[0020] In one embodiment, the second through-hole includes a first hole section and a second hole section that are connected and communicate with each other. The first hole section communicates with the internal space of the filter cartridge, and the second hole section communicates with the external space of the filter cartridge;
[0021] In the direction from the second hole section to the first hole section, the aperture of the first hole section gradually increases, and / or in the direction from the first hole section to the second hole section, the aperture of the second hole section gradually increases.
[0022] In one embodiment, the first through-hole has an aperture r1, where 2 mm ≤ r1 ≤ 3 mm, and the number of the first through-holes provided in the filter cartridge is n, where 40 ≤ n ≤ 200; and / or,
[0023] The second through-hole has a minimum aperture r2, where 0 mm < r2 ≤ 1.5 mm.
[0024] In one embodiment, the filter cartridge is inserted into the filter cartridge, and the edge of the open end is bent toward the central axis of the filter cartridge to form a limiting ring, and the limiting ring abuts against one end of the filter cartridge away from the connecting seat.
[0025] The above second technical problem is solved by the following technical solution:
[0026] A water heater includes: an inner tank and the water purification device as described in the foregoing technical solution. The filter cartridge and the filter cartridge are located in the inner tank, and the connecting seat is connected to the inner tank.
[0027] The water heater described in the present utility model has the following beneficial effects compared with the background art:
[0028] Since the water purification device as described in the foregoing embodiment can accommodate a variety of water quality treatment materials with different particle sizes to jointly purify water, the water quality of the water heater can be more effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 is a schematic structural diagram of the water purification device provided by the embodiment of the present utility model;
[0030] Figure 2 is Figure 1 an enlarged schematic view of M in
[0031] Figure 3 is a schematic structural diagram of the filter cartridge provided by the embodiment of the present utility model;
[0032] Figure 4 is Figure 3 an enlarged schematic view of N in
[0033] Figure 5 Structural schematic diagram of the water heater provided by the embodiment of the present utility model.
[0034] Label description:
[0035] 100, water heater;
[0036] 1, water purification device; 11, filter cartridge; 11a, open end; 110, first through hole; 111, connecting seat; 112, limiting ring; 12, filter cartridge; 120, second through hole; 1201, first hole section; 1202, second hole section; 121, first part; 1211, first plate body; 1212, first surrounding wall; 1213, card slot; 1214, guiding surface; 122, second part; 1221, second plate body; 1222, second surrounding wall; 1223, card projection; 12a, first end; 12b, second end;
[0037] 2, inner tank. Specific implementation manner
[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0039] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0040] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.
[0041] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0042] As Figure 1 shown in Figure 2 FIG. 1, this embodiment provides a water purification device 1, which includes a filter cartridge 11 and a filter box 12. The filter cartridge 11 is made of a metal material. A plurality of first through holes 110 communicating with the inner cavity of the filter cartridge 11 are provided on the outer periphery of the filter cartridge 11. One end of the filter cartridge 11 is open, and the other end of the filter cartridge 11 is closed and provided with a connection seat 111 for connecting to an external structure. The filter box 12 is plugged at the open end 11a of the filter cartridge 11. The filter box 12 is made of a plastic material. A plurality of second through holes 120 communicating with the internal space of the filter box 12 are provided on the surface of the filter box 12. The second through holes 120 communicate with the external space of the water purification device 1 and / or the inner cavity of the filter cartridge 11. The aperture of the second through holes 120 is smaller than the aperture of the first through holes 110.
[0043] By making the water purification device 1 include the filter box 12 made of a plastic material, the filter box 12 can be manufactured by an injection molding method. Since the requirement for the structural strength of the mold in the injection molding process is not as high as that in the stamping process, the filter box 12 with the second through holes 120 having a smaller aperture can be manufactured relatively simply.
[0044] In addition, by making the water purification device 1 include the filter cartridge 11 with the first through holes 110 having a larger aperture and the filter box 12 with the second through holes 120 having a smaller aperture, the filter cartridge 11 can be used to accommodate the water treatment materials with larger particles, and the filter box 12 can be used to accommodate the water treatment materials with smaller particles, so as to purify water through a variety of different water treatment materials together.
[0045] Furthermore, by installing the filter box 12 at the open end 11a of the filter cartridge 11 to block the end of the filter cartridge 11, the use of metal materials can be reduced, and the processing cost and material cost of the water purification device 1 can be further reduced.
[0046] Optionally, the filter cartridge 11 can be made of stainless steel with good corrosion resistance so that it can be used by being soaked in hot water for a long time.
[0047] The first through-hole 110 has a pore diameter r1. Since the particle size of the water treatment material with larger particles is usually greater than 3 mm, and when the pore diameter is less than 2 mm, the stamping manufacturing difficulty of the through-hole increases significantly. In order to enable water to pass through the first through-hole 110 while blocking the water treatment material from passing through, and to make the first through-hole 110 easy to stamp and manufacture, optionally, the pore diameter r1 of the first through-hole 110 can satisfy: 2 mm ≤ r1 ≤ 3 mm. For example, the pore diameter r1 can be 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm or 3 mm, etc.
[0048] The number of the first through-holes 110 provided in the filter cartridge 11 is n. In order to enable a relatively large flow rate of water inside and outside the filter cartridge 11, so that the water treatment speed of the water treatment material in the filter cartridge 11 is relatively fast, the number of the first through-holes 110 can be relatively large. However, if the number of the first through-holes 110 is too large, it will be difficult for the filter cartridge 11 to meet the structural strength requirements for use. Therefore, the number of the first through-holes 110 cannot be too small or too large. Based on this, optionally, the number n of the first through-holes 110 can satisfy: 40 ≤ n ≤ 200. For example, the number n of the first through-holes 110 can be 40, 50, 60, 70, 80, 90, 100, 120, 150, 180 or 200, etc.
[0049] Optionally, the filter cartridge 12 is inserted into the filter cartridge 11, and the edge of the open end 11a is bent towards the central axis of the filter cartridge 11 to form a limiting ring 112. The limiting ring 112 can abut against one end of the filter cartridge 12 far from the connecting seat 111, so that the filter cartridge 12 can be limited in the inner space of the filter cartridge 11 through the limiting ring 112, making the structure of the water purification device 1 more stable.
[0050] Optionally, after the filter cartridge 12 is fitted and connected to the inner wall of the filter cartridge 11 at one end far from the connecting seat 111, the edge of the filter cartridge 11 at one end far from the connecting seat 111 can be rolled, so that the edge of the filter cartridge 11 at one end far from the connecting seat 111 is bent towards the central axis of the filter cartridge 11 to form a limiting ring 112.
[0051] Optionally, the filter cartridge 12 can be in interference fit or sliding fit with the inner wall of the filter cartridge 11. When the filter cartridge 12 is in sliding fit connection with the inner wall of the filter cartridge 11, the filter cartridge 12 can abut against the water treatment material installed in the filter cartridge 11, and is pushed by the water treatment material in the filter cartridge 11 to the end of the filter cartridge 12 far from the connecting seat 111.
[0052] Optionally, by making at least part of the second through-hole 120 also communicate with the inner cavity of the filter cartridge 11, water can flow between the inside of the filter cartridge 11 and the filter cartridge 12 through the at least part of the second through-hole 120, so that more water can flow through the water treatment material in the filter cartridge 11 and the water treatment material in the filter cartridge 12, so as to improve the combined water purification effect of the water treatment materials provided in the filter cartridge 11 and the filter cartridge 12 respectively.
[0053] Optionally, the filter cartridge 12 has an opposite first end 12a and a second end 12b. The second end 12b is the end of the filter cartridge 12 close to the connecting seat 111. Therefore, the first end 12a is the end of the filter cartridge 12 far from the connecting seat 111. The second through-hole 120 provided at the first end 12a communicates between the internal space of the filter cartridge 12 and the external space of the water purification device 1, and the second through-hole 120 provided at the second end 12b communicates between the internal space of the filter cartridge 12 and the inner cavity of the filter cartridge 11. That is, the second through-hole 120 is provided at both the opposite first end 12a and the second end 12b of the filter cartridge 12 to facilitate the flow of water from the first end 12a to the second end 12b, or from the second end 12b to the first end 12a, so as to facilitate the water outside the water purification device 1 to flow into the filter cartridge 12 and then into the filter cartridge 11 in sequence, or to facilitate the water in the filter cartridge 11 to flow through the filter cartridge 12 and flow to the outside of the water purification device 1.
[0054] In actual use, the water purification device 1 is usually set vertically, and the filter cartridge 12 is located at the top of the filter cartridge 11 along the gravity direction. The water in the water heater is usually hot water heated at the bottom, and the hot water has an upward flow tendency. Therefore, the water usually enters the inside of the filter cartridge 11 through the first through-hole 110 of the filter cartridge 11, then flows upward to pass through the second through-hole 120 at the second end 12b to enter the filter cartridge 12, and then continues to flow upward to pass through the second through-hole 120 at the first end 12a to flow to the outside of the water purification device 1.
[0055] Based on this, optionally, the total opening area of the second through-hole 120 at the first end 12a is smaller than the total opening area at the second end 12b, so that the flow path of the water flowing through the second through-hole 120 at the second end 12b into the filter cartridge 12 is larger. On the one hand, it can ensure that sufficient water flows from the filter cartridge 11 into the filter cartridge 12. On the other hand, it can make the water flowing into the filter cartridge 12 flow slowly near the water treatment material in the filter cartridge 12 to fully contact the water treatment material, and make the water flowing to the vicinity of the first end 12a flow out of the second through-hole 120 at the first end 12a to the outside of the water purification device 1 at a faster speed.
[0056] Please combine Figure 3As shown, optionally, the filter cartridge 12 includes a first part 121 and a second part 122 that are separately provided. The first part 121 includes a first plate body 1211 and a first surrounding wall 1212 disposed around the first plate body 1211. The second part 122 includes a second plate body 1221 and a second surrounding wall 1222 disposed around the second plate body 1221. The second plate body 1221 is spaced opposite to the first plate body 1211. The second surrounding wall 1222 is sleeved on the outer periphery of the first surrounding wall 1212, and the second part 122 is connected to the filter cartridge 11. The first plate body 1211 is provided with a second through hole 120, or the second plate body 1221 is provided with a second through hole 120, or both the first plate body 1211 and the second plate body 1221 are provided with a second through hole 120.
[0057] By setting the filter cartridge 12 as the separate first part 121 and second part 122, on the one hand, it is possible to separately injection-mold the first part 121 including the first plate body 1211 and the first surrounding wall 1212, and the second part 122 including the second plate body 1221 and the second surrounding wall 1222, and then connect the first part 121 and the second part 122 to form a filter cartridge 12 with an internal space. Since the structures of the first part 121 and the second part 122 do not include relatively enclosed internal spaces, in other words, the structures of the first part 121 and the second part 122 are both convenient for demolding, so the manufacturing difficulty of the filter cartridge 12 can be reduced. On the other hand, it is convenient to expose the internal space of the filter cartridge 12 before the first part 121 and the second part 122 are installed, so as to facilitate installing water treatment materials into the internal space of the filter cartridge 12.
[0058] Wherein, the second plate body 1221 is located on the side of the first plate body 1211 away from the connection seat 111, or the second plate body 1221 is located on the side of the first plate body 1211 close to the connection seat 111.
[0059] When, as described in the foregoing technical solution, the filter cartridge 12 has opposite first end 12a and second end 12b, the first plate body 1211 has the first end 12a, and the second plate body 1221 has the second end 12b, or the first plate body 1211 has the second end 12b, and the second plate body 1221 has the first end 12a.
[0060] Optionally, at least one of the first part 121 and the second part 122 is provided with a clamping structure, and the clamping structure clamps the other, so that the first part 121 and the second part 122 can be clamped through the clamping structure, so that the connection stability between the first part 121 and the second part 122 is better, and the structural stability of the filter cartridge 12 is also better.
[0061] Optionally, a clamping protrusion 1223 is provided at one end of the second surrounding wall 1222 away from the second plate body 1221 (that is, the aforementioned clamping structure may include the clamping protrusion 1223). The clamping protrusion 1223 protrudes towards the central axis of the second surrounding wall 1222, and the clamping protrusion 1223 abuts against one end of the first part 121 away from the second plate body 1221, so that the first part 121 can be limited within the space between the second surrounding wall 1222 and the second plate body 1221 through the clamping protrusion 1223, thereby improving the structural stability of the filter cartridge 12.
[0062] Optionally, the second surrounding wall 1222 may be provided with a clamping protrusion 1223. The clamping protrusion 1223 may be a long strip-shaped protrusion, and the clamping protrusion 1223 extends along the edge of one end of the second surrounding wall 1222 away from the second plate body 1221. The two opposite ends of the clamping protrusion 1223 may be spaced apart, or the clamping protrusion 1223 may be an annular protrusion. Alternatively, the second surrounding wall 1222 may be provided with a plurality of clamping protrusions 1223, and the plurality of clamping protrusions 1223 are arranged at intervals along the edge of one end of the second surrounding wall 1222 away from the second plate body 1221.
[0063] Optionally, a clamping groove 1213 is provided at the edge of one end of the first part 121 away from the second plate body 1221 (that is, the aforementioned clamping structure may further include the clamping groove 1213). The clamping protrusion 1223 is clamped in the clamping groove 1213, so that at least part of the clamping protrusion 1223 can be accommodated through the clamping groove 1213, making the structure of the filter cartridge 12 formed by connecting the first part 121 and the second part 122 more compact.
[0064] In other embodiments, the first part 121 may further be provided with a protruding clamping structure, and the second part 122 may further be provided with a recessed clamping structure.
[0065] Optionally, when, as described in the foregoing technical solution, the second surrounding wall 1222 is provided with a clamping protrusion 1223, the first part 121 may be provided with a clamping groove 1213 corresponding to the one clamping protrusion 1223. When, as described in the foregoing technical solution, the second surrounding wall 1222 is provided with a plurality of clamping protrusions 1223, the first part 121 may be provided with a plurality of clamping grooves 1213 corresponding to the plurality of clamping protrusions 1223 one by one. In other embodiments, regardless of the number of clamping protrusions 1223 provided on the second surrounding wall 1222, the clamping groove 1213 may be an annular groove surrounding one end of the first part 121.
[0066] Optionally, a guiding surface 1214 may further be provided at the outer edge of one end of the first surrounding wall 1212 away from the first plate body 1211. When the first part 121 and the second part 122 are installed, it can abut against the inner wall surface of one end of the second surrounding wall 1222 away from the second plate body 1221 to guide the first surrounding wall 1212 into the internal space formed by the second surrounding wall 1222.
[0067] Please combineFigure 4 As shown, optionally, the second through hole 120 includes a first hole section 1201 and a second hole section 1202 that are connected and communicate with each other. The first hole section 1201 communicates with the internal space of the filter cartridge 12, and the second hole section 1202 communicates with the external space of the filter cartridge 12. Along the direction from the second hole section 1202 to the first hole section 1201, the aperture of the first hole section 1201 gradually increases, or along the direction from the first hole section 1201 to the second hole section 1202, the aperture of the second hole section 1202 gradually increases, or along the direction from the second hole section 1202 to the first hole section 1201, the aperture of the first hole section 1201 gradually increases, and along the direction from the first hole section 1201 to the second hole section 1202, the aperture of the second hole section 1202 gradually increases. In other words, in the first hole section 1201 and the second hole section 1202, at least one of them is formed with a structure in which the aperture of the part connected to the other is the minimum aperture that meets the design requirements, and the aperture of the remaining part is larger, so that the structure of the part of the mold used to block the molten plastic to form the second through hole 120 does not need to be formed into an overall thin rod shape. In other words, it is possible to improve the structural strength of the part of the mold used to form the second through hole 120, slow down the wear speed of the mold, increase the service life of the mold, and thus reduce the manufacturing cost of the filter cartridge 12.
[0068] Since both the first hole section 1201 and the second hole section 1202 are formed with a structure in which the aperture of the part connected to the other is the minimum aperture that meets the design requirements and the aperture of the remaining part is larger, at the connection between the first hole section 1201 and the second hole section 1202, the structural strength of the inner wall of the second through hole 120 is weak. Therefore, during use, it is easy to wear, resulting in the problem that the minimum aperture of the second through hole 120 becomes larger. Based on this, optionally, when one of the first hole section 1201 and the second hole section 1202 is formed with a structure in which the aperture of the part connected to the other is the minimum aperture that meets the design requirements and the aperture of the remaining part is larger, the other can be a straight hole structure, so that the structural strength of each part of the inner wall of the second through hole 120 is better. During use, the second through hole 120 is more likely to maintain a stable state with the minimum aperture.
[0069] The second through hole 120 has a minimum aperture r2. Since the particle size of the water treatment material with smaller particles is usually greater than 1.5 mm, therefore, optionally, the minimum aperture r2 of the second through hole 120 can satisfy: 0 mm < r2 ≤ 1.5 mm. For example, the minimum aperture r2 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm or 1.5 mm, etc.
[0070] As Figure 5As shown, this embodiment further provides a water heater 100, including an inner tank 2 and the water purification device 1 described in the foregoing technical solution. Please refer to Figure 1 As shown, the filter cartridge 11 and the filter box 12 are located inside the inner tank 2, and the connecting seat 111 can be connected to the inner tank 2 by a connection method including but not limited to threaded connection and plug-in connection. Since the water purification device 1 described in the foregoing embodiment can accommodate a variety of water quality treatment materials with different particle sizes to jointly purify water, the water quality of the water discharged from the water heater 100 can be improved more effectively.
[0071] In the specific content of the above specific implementation manner, each technical feature can be combined arbitrarily without contradiction. For the sake of brevity of description, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features does not exist in contradiction, it should be considered as the scope described in this specification.
[0072] The specific content of the above specific implementation manner only expresses several implementation manners of the present invention, and its description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.
Claims
1. A water purification device, characterized in that, Including: A filter cartridge (11), the filter cartridge (11) being made of metal, the outer periphery of the filter cartridge (11) being provided with a plurality of first through holes (110) communicating with the inner cavity of the filter cartridge (11), one end of the filter cartridge (11) being open, the other end of the filter cartridge (11) being closed and provided with a connection seat (111), the connection seat (111) being used for connecting to an external structure; and, A filter box (12), plugged at the open end (11a) of the filter cartridge (11), the filter box (12) being made of plastic, the surface of the filter box (12) being provided with a plurality of second through holes (120) communicating with the internal space of the filter box (12), the second through holes (120) being in communication with the external space of the water purification device (1) and / or the inner cavity of the filter cartridge (11), the aperture of the second through holes (120) being smaller than the aperture of the first through holes (110).
2. The water purification device according to claim 1, characterized in that, The filter box (12) has an opposite first end (12a) and a second end (12b), the second end (12b) being the end of the filter box (12) close to the connection seat (111), the second through holes (120) provided at the first end (12a) being in communication between the inside of the filter box (12) and the external space of the water purification device (1), and the second through holes (120) provided at the second end (12b) being in communication between the internal space of the filter box (12) and the inner cavity of the filter cartridge (11).
3. The water purification device according to claim 2, characterized in that, The total opening area of the second through holes (120) at the first end (12a) is smaller than the total opening area at the second end (12b).
4. The water purification device according to any one of claims 1 to 3, characterized in that The filter box (12) includes a first part (121) and a second part (122) which are separately arranged, the first part (121) including a first plate body (1211) and a first surrounding wall (1212) arranged around the first plate body (1211), the second part (122) including a second plate body (1221) and a second surrounding wall (1222) arranged around the second plate body (1221), the second plate body (1221) being spaced opposite to the first plate body (1211), the second surrounding wall (1222) being sleeved on the outer periphery of the first surrounding wall (1212), and the second part (122) being connected to the filter cartridge (11); The second plate body (1221) is located on the side of the first plate body (1211) away from the connection seat (111), or the second plate body (1221) is located on the side of the first plate body (1211) close to the connection seat (111).
5. The water purification device according to claim 4, wherein, At least one of the first part (121) and the second part (122) is provided with a clamping structure, and the clamping structure is clamped to the other.
6. The water purification device according to claim 4, wherein, One end of the second surrounding wall (1222) away from the second plate body (1221) is provided with a clamping convex (1223), the clamping convex (1223) protruding towards the inside of the second part, and the clamping convex (1223) abuts against the first part (121); A clamping groove (1213) is provided at the edge of one end of the first part (121) far away from the second plate body (1221), and the clamping protrusion (1223) is clamped in the clamping groove (1213).
7. The water purification device according to any one of claims 1-3, characterized in that, The second through hole (120) includes a first hole section (1201) and a second hole section (1202) that are communicated with each other. The first hole section (1201) is communicated with the internal space of the filter cartridge (12), and the second hole section (1202) is communicated with the external space of the filter cartridge (12); Along the direction from the second hole section (1202) to the first hole section (1201), the aperture of the first hole section (1201) gradually increases, and / or along the direction from the first hole section (1201) to the second hole section (1202), the aperture of the second hole section (1202) gradually increases.
8. The water purification device according to any one of claims 1 to 3, characterized in that, The first through hole (110) has an aperture r1, 2 mm ≤ r1 ≤ 3 mm, and the number of the first through holes (110) provided on the filter cartridge (11) is n, 40 ≤ n ≤ 200; and / or, The second through hole (120) has a minimum aperture r2, 0 mm < r2 ≤ 1.5 mm.
9. The water purification device according to any one of claims 1 to 3, characterized in that The filter cartridge (12) is inserted into the filter cartridge (11), and the edge of the open end (11a) is bent towards the central axis of the filter cartridge (11) to form a limiting ring (112), and the limiting ring (112) abuts against one end of the filter cartridge (12) far away from the connecting seat (111).
10. A water heater, characterized in that, Comprising: An inner container (2) and the water purification device (1) according to any one of claims 1-9, wherein the filter cartridge (11) and the filter cartridge (12) are located in the inner container (2), and the connecting seat (111) is connected to the inner container (2).