Built-in water purifying and filtering device of ice maker and filtering method

Abstract

The invention provides a built-in water purifying and filtering device of an ice maker and a filtering method, and belongs to the technical field of filtering. A built-in water purifying and filtering device of an ice maker comprises an upper shell, a lower shell, a water inlet pipe, a water outlet pipe, a blow-off pipe and a filter cartridge unit, the filter cartridge unit comprises an upper filter cartridge and a lower filter cartridge detached from the upper filter cartridge, and when the upper filter cartridge and the lower filter cartridge coincide, a first cavity and a second cavity which are communicated with each other are formed; a locking structure of the upper shell and the lower shell is adopted, tight fixation between the upper shell and the lower shell is facilitated, meanwhile, the filter cartridge unit can be stably clamped and fixed in a cavity between the upper shell and the lower shell, the efficient and stable filtering and purifying effect is achieved, in addition, due to the detachable design of the upper filter cartridge and the lower filter cartridge, the structure is simple, and the practicability is high. The activated carbon particles can be filled, replaced, cleaned and maintained conveniently, the requirement for overall replacement of the filter cartridge unit is avoided, and therefore the maintenance cost is effectively reduced while the filtering and purifying effect is kept.

Description

Technical Field

[0001] The invention relates to the technical field of filtration, and in particular to a built-in water purification filtration device and a filtration method for an ice maker. Background Art

[0002] An ice machine is a mechanical device that uses the refrigerant in the refrigeration system to cool water through an evaporator to generate ice. In the ice-making process, in order to ensure the quality of ice cubes and extend the service life of the machine, a water purification and filtration device is usually installed inside the ice machine to pre-treat the water source, thereby improving the quality of ice making.

[0003] However, the filter cartridge inside the current ice maker's built-in water purification filter device only has a simple filtering function and does not have a deodorizing property. In addition, once the filter cartridge fails or reaches the replacement cycle, the user often needs to purchase a whole new filter cartridge for replacement, rather than just replacing the vulnerable parts therein. This practice not only increases the user's maintenance cost, but may also cause equipment damage or water leakage due to improper operation during the replacement process. To this end, in response to this problem, the present invention proposes a built-in water purification filter device and filtering method for an ice maker. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a built-in water purification filter device and a filtering method for an ice maker that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a built-in water purification and filtering device for an ice maker, comprising an upper shell and a lower shell, one side of the upper shell is connected to a water inlet pipe, the other side of the upper shell is connected to a water outlet pipe, the lower shell is connected to a sewage pipe with a control valve, and also includes a filter cartridge unit arranged between the upper shell and the interior of the lower shell, when the upper shell and the lower shell are locked, the filter cartridge unit is clamped in the chamber between the upper shell and the interior of the lower shell, so as to filter and purify water source impurities entering the chamber, wherein the filter cartridge unit includes an upper filter cartridge and a lower filter cartridge detachable from the upper filter cartridge, and when the upper filter cartridge and the lower filter cartridge overlap, there are a first chamber and a second chamber that are respectively connected.

[0006] Preferably, one end of the lower shell body that is butt-jointed with the upper shell body is connected to an externally threaded pipe, and the inner wall of the upper shell body is provided with an internal thread that is threadably connected to the externally threaded pipe.

[0007] Preferably, a positioning ring is fixed on the externally threaded tube, and the surface diameter of the positioning ring is larger than the surface diameter of the externally threaded tube.

[0008] Preferably, the first cavity is in a closed state, the end of the second cavity close to the water outlet pipe is open, and the end of the second cavity close to the bottom of the lower filter cartridge is sealed.

[0009] Preferably, the upper filter cartridge is evenly distributed with upper filter holes interconnected with the first cavity and the second cavity, and the lower filter cartridge is evenly distributed with lower filter holes interconnected with the first cavity and the second cavity, and the pore size and shape of the upper filter holes are equal to those of the lower filter holes.

[0010] Preferably, a first annular block is fixed on the upper filter cartridge, a second annular block connected to the first annular block is fixed on the lower filter cartridge, a plurality of circumferentially distributed docking grooves are provided at the bottom of the first annular block, and a docking block that fits with the inner wall of the docking groove is fixed on the top of the second annular block.

[0011] Preferably, the docking block is made of iron, and a magnet that is attracted to the docking block is fixed to the top wall of the docking groove.

[0012] Preferably, a sealing plate is fixed between the inner walls of the upper shell body, a guide port interconnected with the second chamber is opened on the sealing plate, a limiting ring fitting with the surface of the upper filter cartridge is fixed to the bottom of the sealing plate, a plurality of circumferentially distributed extension strips are fixed between the inner walls of the lower shell body, a circular positioning block is fixed between the surfaces of the plurality of extension strips, and a positioning groove fitting with the circular positioning block is provided at the bottom of the lower filter cartridge.

[0013] Preferably, the top of the sealing plate corresponds to the bottom of the water outlet pipe, and the bottom of the sealing plate corresponds to the top of the water inlet pipe.

[0014] The present invention also provides a built-in water purification and filtering method for an ice maker, comprising the following steps:

[0015] S1. Introduce the water source to be filtered into the chamber between the upper shell and the lower shell through the water inlet pipe, so that the impurities in the water source are filtered on the outer surface of the filter cartridge unit and then enter the first chamber for purification;

[0016] S2, the filtered and purified water is output from the second chamber through the water outlet pipe for use in the ice maker;

[0017] S3. During the filtration process, the accumulated impurities and sewage are discharged through the sewage pipe. When the filter cartridge unit reaches the replacement cycle or the filtration effect decreases, the upper filter cartridge and the lower filter cartridge can be removed for cleaning and replacement of activated carbon particles.

[0018] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention adopts a locking structure of the upper shell and the lower shell, which is not only for facilitating the tight fixation between the upper shell and the lower shell, but also can stably clamp the filter cartridge unit in the chamber between the upper shell and the lower shell, thereby achieving efficient and stable filtering and purification effects. In addition, the filter cartridge unit adopts a detachable design, which is not only convenient for the filling, replacement, cleaning and maintenance of activated carbon particles, but also avoids the need for replacement of the filter cartridge unit as a whole, thereby effectively reducing maintenance costs while maintaining the filtering and purification effects, bringing users a more convenient and efficient use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front cross-sectional view of a built-in water purification and filtering device for an ice maker provided by the present invention;

[0020] Figure 2 A schematic diagram of the explosion structure of a built-in water purification and filtering device for an ice maker provided by the present invention;

[0021] Figure 3 A schematic diagram of the connection structure between an upper filter cartridge and a limit ring of a built-in water purification filter device of an ice maker provided by the present invention;

[0022] Figure 4 For the present invention Figure 1 A is an enlarged structural diagram;

[0023] Figure 5 A schematic diagram of the connection structure between a lower filter cartridge and a circular positioning block of a built-in water purification filter device of an ice maker provided by the present invention;

[0024] Figure 6 A schematic diagram of the exploded structure of the upper filter cartridge and the lower filter cartridge connected to the built-in water purification filter device of an ice maker provided by the present invention;

[0025] Figure 7 A schematic diagram of the connection structure of an upper filter cartridge and a lower filter cartridge of a built-in water purification filter device of an ice maker provided by the present invention when they are overlapped;

[0026] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in FIG.

[0027] Fig. 9 The present invention provides an overall structural diagram of a built-in water purification and filtering device for an ice maker.

[0028] In the figure: 1, upper shell; 11, water inlet pipe; 12, water outlet pipe; 13, internal thread; 14, sealing plate; 15, guide port; 16, limit ring;

[0029] 2. Lower shell; 21. Drain pipe; 22. Externally threaded pipe; 23. Positioning ring; 24. Extension strip; 25. Round positioning block;

[0030] 3. Filter cartridge unit; 31. Upper filter cartridge; 32. Lower filter cartridge; 33. First cavity; 34. Second cavity; 35. Upper filter hole; 36. Lower filter hole; 37. First annular block; 38. Second annular block; 39. Docking groove; 310. Docking block; 311. Magnet; 312. Positioning groove. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0032] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0033] In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] Reference Figure 1 and Figure 2 , a built-in water purification filter device for an ice maker, comprising an upper shell 1 and a lower shell 2, one side of the upper shell 1 is connected to a water inlet pipe 11, the other side of the upper shell 1 is connected to a water outlet pipe 12, the lower shell 2 is connected to a sewage pipe 21 with a control valve, and also includes a filter cartridge unit 3 arranged between the upper shell 1 and the lower shell 2. When the upper shell 1 and the lower shell 2 are locked, the filter cartridge unit 3 is clamped in the chamber between the upper shell 1 and the lower shell 2 to filter and purify water source impurities entering the chamber, wherein the filter cartridge unit 3 includes an upper filter cartridge 31 and a lower filter cartridge 32 that is detachable from the upper filter cartridge 31, when the upper filter cartridge 31 and the lower filter cartridge 32 overlap, there are a first cavity 33 and a second cavity 34 that are respectively connected, the upper filter cartridge 31 is evenly distributed with upper filter holes 35 that are interconnected with the first cavity 33 and the second cavity 34, and the lower filter cartridge 32 is evenly distributed with lower filter holes 36 that are interconnected with the first cavity 33 and the second cavity 34.

[0035] In the above technical solution, firstly, the filter cartridge unit 3 is stably clamped in the chamber between the upper shell 1 and the lower shell 2 through the locking structure of the upper shell 1 and the lower shell 2. This design ensures that the filter cartridge unit 3 will not loosen due to water flow impact or external force during operation, thereby ensuring the stability and durability of the filtering effect. Secondly, the filter cartridge unit 3 adopts a detachable upper filter cartridge 31 and lower filter cartridge 32 design. This design not only facilitates the filling and replacement of activated carbon particles, but also makes the cleaning and maintenance of the filter cartridge unit 3 easier. When the activated carbon particles lose their purification effect due to long-term use, the user can easily remove the upper filter cartridge 31, replace or clean the activated carbon particles, thereby ensuring the continuous stability of the filtering and purification effect. Moreover, the upper filter cartridge 31 and the lower filter cartridge 32 overlap. When the filter element 12 is in the closed state, the first chamber 33 and the second chamber 34 are formed to be connected to each other. The design of the first chamber 33 and the second chamber 34 not only enables the water source to pass through the filter cartridge unit 3 smoothly, but also enables the activated carbon particles to be evenly distributed in the first chamber 33, thereby making full use of the adsorption capacity of the activated carbon to efficiently purify the impurities and harmful substances in the water source. Finally, since the first chamber 33 is in a closed state, the end of the second chamber 34 close to the water outlet pipe 12 is open, and the end of the second chamber 34 close to the bottom of the lower filter cartridge 32 is sealed, so that the water source filtered and purified by the first chamber 33 can flow smoothly into the second chamber 34 and finally be discharged through the water outlet pipe 12. Such a technical solution not only improves the filtration efficiency, but also reduces the maintenance cost, bringing users a more convenient and efficient use experience.

[0036] It should be noted that the volume of the activated carbon particles in the first chamber 33 is set to half of the overall volume of the first chamber 33 in the present technical solution. With this design, the activated carbon particles can be located in the lower layer of the first chamber 33, while the upper layer of the first chamber 33 can be filled with PP filter cotton. Combining the activated carbon particles and the PP filter cotton in the first chamber 33 can achieve multi-level and multi-stage filtration and purification of impurities of different sizes and properties in the water source. Moreover, this design also facilitates the flexible replacement of the activated carbon particles and the PP filter cotton respectively.

[0037] In order to ensure that the activated carbon particles can be firmly retained in the first chamber 33 of the filter cartridge unit 3 and effectively prevent impurity particles that are too small from entering the first chamber 33 through the upper filter holes 35 and the lower filter holes 36, the pore sizes of the upper filter holes 35 and the lower filter holes 36 should be smaller than the average diameter of the activated carbon particles. Such a design not only ensures the stability of the activated carbon particles, but also improves the overall efficiency of the filter cartridge unit 3 in filtering and purifying water sources, ensuring that only water that has been properly filtered can enter the first chamber 33 for further purification.

[0038] In order to ensure that the water source can be evenly filtered when passing through the filter cartridge unit 3, the aperture and shape of the upper filter hole 35 and the lower filter hole 36 are equal. This design not only improves the filtration efficiency, but also ensures the uniformity of the filtration effect, avoiding the problem of incomplete purification of some water sources due to uneven filtration.

[0039] Further, refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 One end of the lower shell 2 that is connected to the upper shell 1 is connected to an external threaded pipe 22, and the inner wall of the upper shell 1 is provided with an internal thread 13 that is threadedly connected to the external threaded pipe 22. In the present technical solution, since the lower shell 2 and the upper shell 1 are both designed as pipe structures, when it is necessary to fix and lock the lower shell 2 and the upper shell 1, it is only necessary to simply rotate the external threaded pipe 22 on the lower shell 2 along the internal thread 13 on the inner wall of the upper shell 1 to achieve tight fixation of the upper shell 1 and the lower shell 2. This disassembly design not only greatly facilitates the subsequent cleaning and maintenance of the interior of the upper shell 1 and the lower shell 2, but also makes the replacement of the filter cartridge unit 3 easier and faster.

[0040] Further, refer to Figure 2 , Figure 5 and Figure 8 In order to facilitate the judgment that the external threaded tube 22 and the internal thread 13 can be completely connected, in the present technical solution, a positioning ring 23 is fixed on the external threaded tube 22, and the surface diameter of the positioning ring 23 is larger than the surface diameter of the external threaded tube 22. Therefore, when the external threaded tube 22 is rotated along the internal thread 13 until the positioning ring 23 is tightly fitted to the bottom of the upper shell body 1, it can be intuitively judged that the external threaded tube 22 and the internal thread 13 have been completely tightened. If the upper shell body 1 and the lower shell body 2 are not tightly connected, it will not only cause water leakage problems in the device, but also cause the water source to flow directly around the filter cartridge unit 3, resulting in a greatly reduced filtering effect, which will directly affect the quality of the ice cubes produced and may even introduce impurities and odors. Therefore, through this design, not only the close connection between the upper shell body 1 and the lower shell body 2 is achieved, but also it is ensured that the filter cartridge unit 3 is stably located in the chamber between the upper shell body 1 and the lower shell body 2, and the filtering and purification effect of the filter cartridge unit 3 is further improved.

[0041] Further, refer to Figure 1-Figure 9, considering that if the upper filter cartridge 31 and the lower filter cartridge 32 are of integral design, when the filter cartridge unit 3 reaches the replacement cycle, the user often needs to purchase a whole new filter cartridge unit 3 for replacement, rather than just replacing the vulnerable parts therein. This practice not only increases the user's maintenance cost, but may also cause equipment damage or water leakage due to improper operation during the replacement process. Therefore, based on this problem, a first annular block 37 is fixed on the upper filter cartridge 31, and a second annular block 38 connected to the first annular block 37 is fixed on the lower filter cartridge 32. The bottom of the first annular block 37 is provided with a plurality of circumferentially distributed docking grooves 39, and the top of the second annular block 38 is fixed There is a docking block 310 that fits with the inner wall of the docking groove 39. The docking block 310 is made of iron. The top wall of the docking groove 39 is fixed with a magnet 311 that is adsorbed by the docking block 310. Through the plug-in design of the docking block 310 and the docking groove 39, not only the docking of the upper filter cartridge 31 and the lower filter cartridge 32 is made faster and more convenient, but also when the docking block 310 contacts the magnet 311, under the adsorption effect of the magnet 311, the upper filter cartridge 31 and the lower filter cartridge 32 can be firmly fixed together. Such a design effectively avoids the problem of overall replacement of the filter cartridge unit 3, reduces the user's maintenance cost, and reduces the risks that may be caused by improper replacement operation.

[0042] Further, refer to Figure 1 and Figure 3-Figure 8 A sealing plate 14 is fixed between the inner walls of the upper shell 1, and a guide port 15 is provided on the sealing plate 14 and is interconnected with the second chamber 34. A limiting ring 16 that fits the surface of the upper filter cartridge 31 is fixed to the bottom of the sealing plate 14. A plurality of circumferentially distributed extension strips 24 are fixed between the inner walls of the lower shell 2, and a circular positioning block 25 is fixed between the surfaces of the plurality of extension strips 24. A positioning groove 312 that fits the circular positioning block 25 is provided at the bottom of the lower filter cartridge 32. The top of the sealing plate 14 corresponds to the bottom of the water outlet pipe 12. The sealing plate The bottom of 14 corresponds to the top of the water inlet pipe 11. When the filter cartridge unit 3 needs to be installed in the chamber between the upper shell 1 and the lower shell 2 for limiting, it is only necessary to align the positioning groove 312 at the bottom of the lower filter cartridge 32 with the circular positioning block 25, and then use the threaded connection between the lower shell 2 and the upper shell 1 to tightly connect the two together. In this process, the upper filter cartridge 31 will be tightly squeezed between the bottom of the sealing plate 14 and the surface of the limiting ring 16, thereby ensuring the stability and sealing of the entire filter cartridge unit 3.

[0043] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A built-in water purification and filtering device for an ice maker, comprising: An upper shell (1) and a lower shell (2), one side of the upper shell (1) is connected to a water inlet pipe (11), the other side of the upper shell (1) is connected to a water outlet pipe (12), and the lower shell (2) is connected to a sewage discharge pipe (21) with a control valve, characterized in that it also includes: A filter cartridge unit (3) is arranged between the upper shell (1) and the lower shell (2); when the upper shell (1) and the lower shell (2) are locked, the filter cartridge unit (3) is clamped in the chamber between the upper shell (1) and the lower shell (2) to filter and purify water source impurities entering the chamber; The filter cartridge unit (3) comprises an upper filter cartridge (31) and a lower filter cartridge (32) which is detachable from the upper filter cartridge (31); when the upper filter cartridge (31) and the lower filter cartridge (32) are overlapped, a first cavity (33) and a second cavity (34) which are respectively connected are provided.

2. The built-in water purification filter device of an ice maker according to claim 1, characterized in that: One end of the lower shell (2) that is butt-jointed with the upper shell (1) is connected to an external threaded tube (22), and the inner wall of the upper shell (1) is provided with an internal thread (13) that is threadably connected to the external threaded tube (22).

3. The built-in water purification filter device of an ice maker according to claim 2, characterized in that: A positioning ring (23) is fixed on the externally threaded tube (22), and the surface diameter of the positioning ring (23) is larger than the surface diameter of the externally threaded tube (22).

4. The built-in water purification filter device for an ice maker according to claim 1, characterized in that: The first chamber (33) is in a closed state, the end of the second chamber (34) close to the water outlet pipe (12) is open, and the end of the second chamber (34) close to the bottom of the lower filter cartridge (32) is sealed.

5. The built-in water purification filter device for an ice maker according to claim 1, characterized in that: The upper filter cartridge (31) is evenly distributed with upper filter holes (35) that are interconnected with the first cavity (33) and the second cavity (34), and the lower filter cartridge (32) is evenly distributed with lower filter holes (36) that are interconnected with the first cavity (33) and the second cavity (34), and the upper filter holes (35) and the lower filter holes (36) have the same pore diameter and shape.

6. The built-in water purification filter device for an ice maker according to claim 1, characterized in that: A first annular block (37) is fixed on the upper filter cartridge (31), and a second annular block (38) connected to the first annular block (37) is fixed on the lower filter cartridge (32). The bottom of the first annular block (37) is provided with a plurality of circumferentially distributed docking grooves (39), and the top of the second annular block (38) is fixed with a docking block (310) that fits with the inner wall of the docking groove (39).

7. The built-in water purification filter device of an ice maker according to claim 6, characterized in that: The docking block (310) is made of iron, and a magnet (311) for adsorbing the docking block (310) is fixed on the top wall of the docking groove (39).

8. The built-in water purification filter device for an ice maker according to claim 1, characterized in that: A sealing plate (14) is fixed between the inner walls of the upper shell (1), a guide port (15) is provided on the sealing plate (14) and is interconnected with the second chamber (34), a limiting ring (16) is fixed at the bottom of the sealing plate (14) and is in contact with the surface of the upper filter cartridge (31), a plurality of circumferentially distributed extension strips (24) are fixed between the inner walls of the lower shell (2), a circular positioning block (25) is fixed between the surfaces of the plurality of extension strips (24), and a positioning groove (312) is provided at the bottom of the lower filter cartridge (32) and is in contact with the circular positioning block (25).

9. The built-in water purification filter device for an ice maker according to claim 8, characterized in that: The top of the sealing plate (14) corresponds to the bottom of the water outlet pipe (12), and the bottom of the sealing plate (14) corresponds to the top of the water inlet pipe (11).

10. A built-in water purification and filtration method for an ice maker, applied to the built-in water purification and filtration device for an ice maker according to claim 1, characterized in that: The following steps are involved: S1, introducing the water source to be filtered into the chamber between the upper shell (1) and the lower shell (2) through the water inlet pipe (11), so that impurities in the water source are filtered on the outer surface of the filter cartridge unit (3) and then enter the first chamber (33) for purification; S2, the filtered and purified water source is output from the second chamber (34) through the water outlet pipe (12) for use in the ice maker; S3. During the filtering process, the accumulated impurities and sewage are discharged through the sewage pipe (21). When the filter cartridge unit (3) reaches the replacement cycle or the filtering effect decreases, the upper filter cartridge (31) and the lower filter cartridge (32) can be removed for cleaning and replacement of the activated carbon particles.

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