Filter element assembly and water purifier

Abstract

The present invention discloses a filter element assembly, including: a filter cartridge and a plurality of filter elements, a plurality of accommodating chambers are defined in the filter cartridge, the plurality of accommodating chambers are interconnected and at least two accommodating chambers are connected in parallel, the filter cartridge includes: an inlet connector and an outlet connector, the inlet connector is connected to the top of any one of the accommodating chambers, the outlet connector is connected to the top of any one of the accommodating chambers, and a plurality of filter elements are respectively arranged in the plurality of accommodating chambers. The filter cartridge of the filter element assembly directly defines a plurality of accommodating chambers for placing filter elements in the cartridge, and the accommodating chambers are interconnected, and at least two accommodating chambers are connected in parallel, so that the filtering efficiency of the tap water in the accommodating chambers can be accelerated. In addition, the inlet connector and the outlet connector of the filter cartridge are arranged at the top of any one of the accommodating chambers, so that the structure of the filter element assembly can be more compact.

Description

Technical Field

[0001] The invention relates to the technical field of water purification equipment, and in particular to a filter element component and a water purifier. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, water purifiers have been recognized by people for their advantages of purifying users' water, improving the purity of users' water, and making users' water healthier, and have been widely promoted and applied.

[0003] In the related art, a water purifier generally includes a filter element and a filter cartridge. The filter cartridge for placing the filter element generally can only hold one filter element. Moreover, since multiple filter elements need to be placed, the number of filter cartridges needs to be increased accordingly, which results in a larger volume of the water purifier. In addition, the water purifier also filters tap water step by step, and each stage is only equipped with a single filter element, which reduces the initial filtration rate of tap water. In addition, the water inlet and outlet joints of the water purifier are placed on different sides, which makes the structure of the water purifier complicated. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a filter element assembly that can speed up the initial filtration rate of tap water and has a more compact structure.

[0005] The invention also provides a water purifier.

[0006] According to an embodiment of the present invention, the filter element assembly includes: a filter cartridge, a plurality of accommodating cavities are defined in the filter cartridge, the plurality of accommodating cavities are interconnected and at least two of the accommodating cavities are connected in parallel, the filter cartridge includes: an inlet connector and a outlet connector, the inlet connector is connected to the top of any one of the accommodating cavities, the outlet connector is connected to the top of any one of the accommodating cavities; a plurality of filter elements, the plurality of filter elements are respectively arranged in the plurality of accommodating cavities.

[0007] Therefore, the filter cartridge of the filter element assembly directly defines a plurality of accommodating cavities for placing the filter elements in the cartridge, and the accommodating cavities are interconnected, with at least two accommodating cavities connected in parallel. This can speed up the filtering efficiency of the tap water in the accommodating cavities. In addition, the water inlet connector and the water outlet connector of the filter cartridge are arranged at the top of any accommodating cavity, which can make the structure of the filter element assembly more compact.

[0008] According to some embodiments of the present invention, the water inlet joint is sleeved on the water outlet joint, and the water inlet joint and the water outlet joint are connected to the top of the same accommodating cavity.

[0009] According to some embodiments of the present invention, the bottom of each accommodating cavity is provided with a water inlet and a water outlet for communicating with other accommodating cavities, and a connecting pipe is provided in the accommodating cavity connected to the water outlet joint, and the connecting pipe is connected to the water outlet joint.

[0010] According to some embodiments of the present invention, the multiple accommodating chambers include a first accommodating chamber, a second accommodating chamber and a third accommodating chamber, the second accommodating chamber is located between the first accommodating chamber and the third accommodating chamber, the water inlet connector and the water outlet connector both correspond to the top of the second accommodating chamber, the connecting pipe is arranged in the second accommodating chamber, and the second accommodating chamber and the first accommodating chamber are connected in parallel and then connected in series with the third accommodating chamber.

[0011] According to some embodiments of the present invention, the plurality of filter elements include a first filter element, a second filter element and a third filter element, and the first filter element, the second filter element and the third filter element are respectively arranged in the first accommodating chamber, the second accommodating chamber and the third accommodating chamber; each filter element divides the space of the accommodating chamber into an unfiltered chamber portion and a filtered chamber portion, the unfiltered chamber portions of the first filter element and the third filter element correspond to the water inlet and the filtered chamber portions correspond to the water outlet, the second filter element corresponds to two water outlets, which are respectively a first water outlet and a second water outlet, the unfiltered chamber portion of the second filter element corresponds to the first water outlet, and the filtered chamber portion corresponds to the second water outlet and a through hole for the connecting pipe to pass through.

[0012] According to some embodiments of the present invention, the first filter element and the second filter element are filter elements having the same filter material, and the third filter element is a filter element having a filter material different from that of the first filter element.

[0013] According to some embodiments of the present invention, the first filter element and the second filter element both include a carbon layer and a PP layer, and the PP layer and the carbon layer are axially spaced apart. The third filter element includes: a carbon rod layer and an ultrafiltration layer, and the carbon rod layer and the ultrafiltration layer are axially spaced apart.

[0014] According to some embodiments of the present invention, the filter element assembly further comprises: a waterway plate, which is disposed on the filter cartridge and is respectively connected to a water inlet and a water outlet of each of the accommodating cavities.

[0015] According to some embodiments of the present invention, the filter cartridge includes: a cylinder body and a bottom cover, the bottom of the cylinder body is provided with a receiving groove, the waterway plate is installed in the receiving groove, and the bottom cover seals the open side of the receiving groove.

[0016] According to some embodiments of the present invention, a first channel, a second channel and a third channel are formed in the waterway plate, the first channel is connected to the water inlet of the first accommodating cavity and the first water outlet of the second accommodating cavity, the second channel is connected to the water outlet of the first accommodating cavity, the second water outlet of the second accommodating cavity and the water inlet of the third accommodating cavity, and the third channel is connected between the water outlet of the third accommodating cavity and the end of the connecting pipe.

[0017] According to some embodiments of the present invention, the filter cartridge includes: a cylinder body, a top cover and a sealing cover, the sealing covers are two and are respectively sealed on the top of the first accommodating chamber and the third accommodating chamber, the top cover is arranged on the top of the cylinder body, and the water inlet joint and the water outlet joint are passed through the top cover.

[0018] The water purifier of the present invention comprises the filter element assembly.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a cross-sectional view of a filter element assembly according to an embodiment of the present invention;

[0022] Figure 2 is an exploded view of a filter element assembly according to an embodiment of the present invention;

[0023] Figure 3 is a bottom view of a filter element assembly according to an embodiment of the present invention;

[0024] Figure 4 is a perspective view of a filter cartridge according to an embodiment of the present invention;

[0025] Figure 5 is another perspective view of a filter cartridge according to an embodiment of the present invention;

[0026] Figure 6 is a top view of a filter cartridge according to an embodiment of the present invention;

[0027] Figure 7 is an exploded view of an assembly of a filter cartridge and a filter element according to an embodiment of the present invention;

[0028] Figure 8 is a perspective view of a waterway plate according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] Filter element assembly 100;

[0031] Filter cartridge 10;

[0032] Accommodating chamber 11; first accommodating chamber 111; second accommodating chamber 112; third accommodating chamber 113; water inlet 114;

[0033] Water outlet 115; first water outlet 1151; second water outlet 1152; water receiving nozzle 116; limiting portion 117; mounting screw hole 118; through hole 119;

[0034] Cylinder body 12; outer cover shell 121; inner cylinder 122; receiving groove 123;

[0035] Bottom cover 13; water inlet connector 14; water outlet connector 15; sealing cover 16; connecting pipe 17; top cover 18;

[0036] Filter element 20; first filter element 21; second filter element 22; first filter material 23; first end cap 24; second end cap 25;

[0037] Internal pipe 26; water inlet hole 261; water hole 262;

[0038] The third filter element 27; the second filter material 271; the third filter material 272;

[0039] The third end cover 273; the fourth end cover 274; the fifth end cover 275; the second limiting portion 28; the second filter material 29;

[0040] Waterway plate 30;

[0041] First channel 31; first water inlet 311; first water outlet 312;

[0042] The second channel 32; the second water inlet 321; the second water outlet 322;

[0043] The third channel 33; the third water inlet 331; the third water outlet 332;

[0044] Open end 34; plug 341; mounting hole 35; sealing ring 36. DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0046] Reference below Figure 1-Figure 8 A filter element assembly 100 according to an embodiment of the present invention is described, and the filter element assembly 100 is disposed in a water purifier.

[0047] like Figure 1 and Figure 2As shown, the filter element assembly 100 according to an embodiment of the present invention comprises: a filter cartridge 10, a filter element 20 and a connector. The filter cartridge 10 provides an installation space for the filter element 20, the filter element 20 is installed in the filter cartridge 10, and the connector can play a connecting role, so that the waterways between the filter elements 20 can be interconnected. For example, the connector can be a waterway plate 30, and the waterway plate 30 has a water flow channel to assist the filter element 20 in filtering tap water. The filter element 20 can remove solid particles in the water, kill bacteria, filter out harmful chemical components, etc., so as to provide users with cleaner and healthier drinking water.

[0048] like Figure 4 As shown, the filter cartridge 10 defines a plurality of accommodating chambers 11, the axial direction of the plurality of accommodating chambers 11 is a first direction, and the spacing direction is a second direction, the first direction and the second direction are arranged perpendicularly, the plurality of accommodating chambers 11 are connected, and the plurality of filter elements 20 are arranged in the plurality of accommodating chambers 11 respectively. The first direction is Figure 1 The up and down directions shown, the second direction is Figure 1 In this way, the filter cartridge 10 can be formed into a generally rectangular parallelepiped shape, that is, a flat structure, so that the space occupied by the filter cartridge 10 is smaller, and the space required for installing the filter cartridge 10 is also smaller, thereby providing users with a good user experience. In addition, compared with the traditional method of providing a filter cartridge for each filter element separately, the filter cartridge 10 of the present invention directly defines a plurality of chambers for placing filter elements 20, and multiple filter elements 20 can be placed at the same time, thereby making the structure of the filter cartridge 10 simpler.

[0049] Therefore, according to the filter element assembly 100 of the embodiment of the present invention, by providing a filter cartridge 10 with a plurality of accommodating cavities 11, the structure of the filter cartridge 10 can be simplified, and a plurality of accommodating cavities 11 can be directly provided in the filter cartridge 10. Accordingly, the filter cartridge 10 can accommodate a plurality of filter elements 20, and the plurality of accommodating cavities 11 can be connected in series and / or in parallel, thereby enriching the filtering method of the filter element assembly 100 and improving the filtering performance of the filter element assembly 100. Moreover, the filter element assembly 100 provided in this way does not need to be provided in a long cylindrical shape like a traditional filter element assembly. The filter element assembly 100 can be generally rectangular, or can be said to be a flat structure. The filter element assembly 100 provided in this way has a compact structure and is convenient for installation and arrangement.

[0050] According to an optional embodiment of the present invention, Figure 1 and Figure 6As shown, at least two accommodating chambers 11 are connected in parallel. In other words, multiple accommodating chambers 11 can also be connected in parallel, so that the filter elements 20 in the corresponding at least two accommodating chambers 11 are also connected in parallel and can filter synchronously, which can improve the filtering efficiency and further improve the water outlet efficiency of the filter element assembly 100. Correspondingly, the parallel connection method can reduce the overall height of the filter element assembly 100, which can be beneficial to improve the water outlet efficiency while realizing a miniaturized design.

[0051] like Figure 1 and Figure 6 As shown, the plurality of accommodating chambers 11 defined by the filter cartridge 10 include a first accommodating chamber 111, a second accommodating chamber 112, and a third accommodating chamber 113 arranged in sequence in the second direction. For example, the first accommodating chamber 111 and the second accommodating chamber 112 may be connected in parallel, the second accommodating chamber 112 and the third accommodating chamber 113 may be connected in parallel, or the first accommodating chamber 111 and the third accommodating chamber 113 may be connected in parallel. The first accommodating chamber 111 and the second accommodating chamber 112 are connected in parallel and then connected in series with the third accommodating chamber 113. The following description will be made by taking the parallel connection of the first accommodating chamber 111 and the second accommodating chamber 112 as an example.

[0052] The filter elements 20 in the parallel-connected accommodating chambers 11 are all filter elements 20 with the same filter material. Since the parallel-connected accommodating chambers 11 perform primary filtration on tap water, composite filter elements with the same filter material can be placed in the parallel-connected accommodating chambers 11, wherein the composite filter element is a filter element with one or several independent functions that is scientifically combined together according to needs and exerts its functions at the same time, which can improve the effect of the primary filtration.

[0053] Therefore, according to the filter element assembly 100 of the embodiment of the present invention, the filtering efficiency can be improved by setting the accommodating chamber 11 connected in parallel and the corresponding filter element 20 with the same filter material, which can be beneficial to the miniaturized design of the filter element assembly 100, and the filter element 20 can further improve the filtering effect.

[0054] Alternatively, if Figure 1 and Figure 2 As shown, the filter cartridge 10 includes: an inlet connector 14 and an outlet connector 15, wherein the inlet connector 14 is connected to the top of any one of the accommodating chambers 11, and the outlet connector 15 is connected to the top of any one of the accommodating chambers 11. In other words, the multiple accommodating chambers 11 can be connected to each other, so that a water inlet connector 14 and a water outlet connector 15 are arranged on the top of the multiple accommodating chambers 11 to ensure the water inlet and outlet of all the accommodating chambers 11, or in other words, to ensure that water flows between all the filter elements 20, so that filtered pure water can be obtained. The inlet connector 14 and the outlet connector 15 arranged in this way can simplify the structure of the filter cartridge 10, which is conducive to the smooth water inlet and outlet of the multiple accommodating chambers 11.

[0055] For example, the water inlet connector 14 can be disposed at the top of one accommodating chamber 11, and the water outlet connector 15 can be disposed at the top of another accommodating chamber 11, that is, the filter element assembly 100 can inlet water at the top of one accommodating chamber 11, and can outlet water at the top of another accommodating chamber 11. For another example, the water inlet connector 14 and the water outlet connector 15 can be disposed at the top of the same accommodating chamber 11, wherein the water inlet connector 14 and the water outlet connector 15 can be sleeved, the water inlet connector 14 can be sleeved on the water outlet connector 15, and the water outlet connector 15 can also be sleeved on the water inlet connector 14. That is to say, the same accommodating chamber 11 can be provided with a corresponding water inlet connector 14 and a water outlet connector 15 at the same time, and the accommodating chamber 11 can be used for water intake and water discharge. This can reduce the need to provide a connecting portion connecting the water inlet connector 14 and the water outlet connector 15 at the top of the accommodating chamber 11, thereby reducing the manufacturing process of the accommodating chamber 11. In addition, connecting the water inlet connector 14 and the water outlet connector 15 at the top of the same accommodating chamber 11 can make the structure of the filter element assembly 100 more compact.

[0056] Furthermore, if Figure 6 As shown, each receiving chamber 11 is provided with a water inlet 114 and a water outlet 115. This ensures that the tap water in each receiving chamber 11 can be replaced, thereby ensuring the continuous filtering work. Figure 6 As shown, the bottom of the water inlet 114 and the water outlet 115 are both provided with a water receiving nozzle 116. The water receiving nozzle 116 can be conveniently connected to the connecting piece, so that the water passing through the water inlet 114 and the water outlet 115 can flow quickly. Figure 6 As shown, the bottom of each accommodating cavity 11 is provided with a water inlet 114 and a water outlet 115 for communicating with other accommodating cavities. Moreover, a connecting pipe 17 is provided in the accommodating cavity 11 connected with the water outlet connector 15, and the connecting pipe 17 is connected with the water outlet connector 15. It should be noted that the connecting piece can be a device that can drain the water flowing out of the water inlet 114 and the water outlet 115.

[0057] It is understandable that if Figure 6 As shown, the arrangement of the water inlet 114 and the water outlet 115 at the bottom of the accommodating chamber 11 is a prerequisite for ensuring that the tap water in each accommodating chamber 11 can circulate. For example, the water filtered in the third accommodating chamber 113 can flow out from the water outlet 115 of the third accommodating chamber 113, and then flow into one end of the connecting pipe 17 in the second accommodating chamber 112, and the other end of the connecting pipe 17 is connected to the water outlet connector 15. The arrangement of the connecting pipe 17 allows the filtered pure water to flow out of the second accommodating chamber 112, so that the water inlet connector 14 and the water outlet connector 15 are connected to the top of the same accommodating chamber 11.

[0058] Specifically, the second accommodating chamber 112 is located between the first accommodating chamber 111 and the third accommodating chamber 113, the water inlet joint 14 and the water outlet joint 15 both correspond to the top of the second accommodating chamber 112, the connecting pipe 17 is arranged in the second accommodating chamber 112, and the second accommodating chamber 112 is connected in parallel with the first accommodating chamber 111 and then connected in series with the third accommodating chamber 113. A through hole 119 is arranged at the bottom of the second accommodating chamber 112, and one end of the connecting pipe 17 passes through the through hole 119.

[0059] Thus, by limiting the filter cartridge 10 to at least the first accommodating chamber 111, the second accommodating chamber 112 and the third accommodating chamber 113, the structure of the filter cartridge 10 can be made more compact and occupy less space while ensuring the effectiveness of the filtering work. By setting the connecting pipe 17, the water inlet connector 14 and the water outlet connector 15 can both be set at the top of the second accommodating chamber 112, which can reduce the installation steps and make the structure of the filter element assembly 100 more compact. After the second accommodating chamber 112 and the first accommodating chamber 111 are connected in parallel and then connected in series with the third accommodating chamber 113, the preliminary filtering speed can be accelerated while ensuring that the water after the preliminary filtration can be finely filtered in the third accommodating chamber 113, so that pure water can be obtained.

[0060] Among them, Figure 2 As shown, the plurality of filter elements 20 include a first filter element 21, a second filter element 22 and a third filter element 27, which are respectively arranged in the first accommodating chamber 111, the second accommodating chamber 112 and the third accommodating chamber 113, and the first filter element 21 and the second filter element 22 are both filter elements with the same filter material. Among them, since the first accommodating chamber 111 and the second accommodating chamber 112 are connected in parallel, the same filter element 20 can be placed in the first accommodating chamber 111 and the second accommodating chamber 112, and the filtering effect of the filter element 20 is better, which can speed up the initial filtering rate of tap water.

[0061] In an embodiment of the present invention, Figure 5 and Figure 7As shown, each filter element 20 divides the space of the accommodating chamber 11 into an unfiltered chamber portion and a filtered chamber portion. The unfiltered chamber portions of the first filter element 21 and the third filter element 27 correspond to the water inlet 114 and the filtered chamber portions have a water outlet 115. The second accommodating chamber 112 corresponds to two water outlets 115, which are a first water outlet 1151 and a second water outlet 1152 respectively. The unfiltered chamber portion of the second filter element 22 corresponds to the first water outlet 1151, and the filtered chamber portion of the second filter element 22 corresponds to the second water outlet 1152 and a through hole 119 for the connecting pipe 17 to pass through. That is to say, the interior of the unfiltered cavity is tap water that has not been filtered by the corresponding filter element 20, and the interior of the filtered cavity is water that has been filtered by the corresponding filter element 20. By arranging the water inlet 114 and the water outlet 115 in the unfiltered cavity and the filtered cavity, the water in the corresponding cavity can be quickly circulated and filtered. In addition, by arranging the connecting pipe 17, the purified pure water can also flow out from the accommodating cavity 11, and in this process there is no intersection with the water in the accommodating cavity 11 (i.e., the second accommodating cavity 112). In this way, the setting space of the filter element assembly 100 can be reduced, and the overall structure is reasonably set.

[0062] The structures and arrangements of the first filter element 21, the second filter element 22 and the third filter element 27 are described in detail below.

[0063] like Figure 2 As shown, the first filter element 21 and the second filter element 22 are filter elements with the same filter material, and the third filter element 27 is a filter element with a different filter material from the first filter element 21. It can be understood that the first filter element 21 and the second filter element 22 are used to filter the tap water for the first time, while the third filter element 27 is used to filter the tap water again. The harmful substances filtered from the tap water each time are not exactly the same, so the first filter element 21 and the third filter element 27 are set as different filter elements 20, so that the water after two filtrations can be purer.

[0064] like Figure 2As shown, the first filter element 21 and the second filter element 22 include: a first filter material 23, a second filter material 29, a first end cap 24 and a second end cap 25. The first filter material 23 is arranged in the accommodating chamber 11, the second filter material 29 and the first filter material 23 are arranged axially spaced apart from each other in the accommodating chamber 11, the first end cap 24 is sealed and arranged on the top of the first filter material 23, and the second end cap 25 is arranged between the first filter material 23 and the second filter material 29 and is provided with a water hole 262. The first end cap 24 and the second end cap 25 can fix the first filter element 21 and the second filter element 22, and the first filter material 23 and the second filter material 29 are arranged axially spaced apart from each other in the accommodating chamber 11, so that the tap water in the accommodating chamber 11 can be filtered through the first filter material 23 and the second filter material 29. The first filter element 21 and the second filter element 22 are hollow cylinders. The tap water outside the first filter element 21 and the second filter element 22 can penetrate into the inside through the first filter element 21 and the second filter element 22. Then, since the second end cover 25 is provided with a water hole 262, the tap water filtered by the first filter material 23 can flow into the second filter material 29 through the water hole 262 on the second end cover 25. In this way, the first filter element 21 and the second filter element 22 can filter at the same time, which can double the filtering efficiency and improve the filtering efficiency of the filter element assembly 100. Moreover, the first end cover 24 and the second end cover 25 can effectively ensure the installation and fixation of the first filter material 23 and ensure its stability in the accommodating chamber 11. Among them, the water outlet joint 15 is arranged on the first end cover 24 located at the top in the second accommodating chamber 112, and the water outlet joint 15 is connected with the first end cover 24, and the connecting pipe 17 passes through the first end cover 24 located at the top and is connected with the water outlet joint 15. The connection pipe 17 arranged in this way can ensure its installation stability through the first end cover 24 , and can ensure the reliability of water outlet through its connection with the water outlet joint 15 .

[0065] Specifically, Figure 2 As shown, the first filter element 21 and the second filter element 22 further include: an inner tube 26, which is disposed in the first filter material 23, a water inlet hole 261 is disposed at the top of the inner tube 26, and the bottom of the inner tube 26 corresponds to the water hole 262.

[0066] Specifically, after the tap water enters the second accommodating chamber 112 from the water inlet connector 14, a portion of the tap water is filtered by the first filter material 23 and the second filter material 29 located in the second accommodating chamber 112, enters from the water inlet hole 261 at the top of the inner through tube 26, then passes through the water through hole 262 at the bottom of the inner through tube 26, and finally flows out from the second water outlet 1152 of the second accommodating chamber 112. At the same time, another portion of the tap water flows out from the first water outlet 1151 of the unfiltered cavity portion of the second accommodating chamber 112 and then flows into the water inlet 1152 of the first accommodating chamber 111. The tap water 14 enters the first accommodating chamber 111, and then after being filtered by the first filter element 21, enters from the water inlet hole 261 at the top of the inner through tube 26, and then passes through the water through hole 262 at the bottom of the inner through tube 26, and finally flows out from the water outlet 115 of the first accommodating chamber 111. The tap water flowing out from the water outlet 115 of the first accommodating chamber 111 and the second water outlet 1152 of the second accommodating chamber 112 converge and enter the third accommodating chamber 113 from the water inlet 114 of the third accommodating chamber 113, so as to be filtered again in the third accommodating chamber 113. The tap water flowing out from the water outlet 115 of the third accommodating chamber 113 flows into the connecting pipe 17 located in the second accommodating chamber 112, and then flows out from the water outlet joint 15 through the connecting pipe 17 for use by users.

[0067] In detail, the connecting pipe 17 is formed with a water outlet channel, and the connecting pipe 17 is connected to the water outlet joint 15. That is to say, tap water can circulate in the connecting pipe 17, so that unfiltered tap water can be prevented from polluting the filtered tap water.

[0068] In addition, if Figure 2 As shown, the third filter element 27 includes: a third filter material 271, a fourth filter material 272, a third end cap 273, a fourth end cap 274 and a fifth end cap 275. The third filter material 271 and the fourth filter material 272 are arranged at intervals in the axial direction of the accommodating chamber 11, the third end cap 273 is arranged at the top of the third filter material 271, the fourth end cap 274 is arranged between the third filter material 271 and the fourth filter material 272 and connects the two sides, and the fifth end cap 275 is arranged at the bottom of the fourth filter material 272 and is provided with a water hole 262. The fourth end cap 274 is provided with a cylinder, the center of the third filter material 271 is a hollow cylinder, and the cylinder cooperates with the hollow cylinder, so that the fourth end cap 274 can fix the third filter material 271, and then the third filter material 271 and the fourth filter material 272 can be fixed by the third end cap 273 and the fifth end cap 275, thereby forming the third filter element 27. The third filter material 271 and the fourth filter material 272 configured in this way can filter the water in the third accommodating chamber 113 respectively and complement each other, thereby effectively ensuring the water quality of pure water and improving the filtering performance of the filter element assembly 100.

[0069] Specifically, Figure 2As shown, the interior of the cylinder on the fourth end cover 274 is hollow, with one side being open, and a water inlet hole 261 is provided on the cylinder. A portion of the water flowing in from the water inlet 114 of the third accommodating chamber 113 is filtered by the third filter material 271 and then flows into the fourth filter material 272; the other portion of the water is filtered by the fourth filter material 272, then collected and flows out from the water outlet 115 of the third accommodating chamber 113.

[0070] More specifically, if Figure 2 As shown, the first filter material 23 in the first filter element 21 and the second filter element 22 both include a carbon layer and a PP layer, the PP layer and the carbon layer are axially spaced apart, and the PP layer is located above the carbon layer, the third filter material 271 of the third filter element 27 includes: a carbon rod layer, and the fourth filter material 272 includes: an ultrafiltration layer, and the carbon rod layer and the ultrafiltration layer are axially spaced apart. Among them, the carbon layer and the PP layer can also be distributed in a non-axial manner or in a radial manner, and the PP layer can also be sleeved on the outside of the carbon layer.

[0071] Among them, the PP layer can be a short fiber of polypropylene, and the PP layer is mainly used to filter rust, red worms and particulate impurities larger than 5 microns in tap water. The carbon layer is an activated carbon, and the carbon layer has the ability to adsorb organic compounds, and can effectively play the functions of dechlorination, deodorization and deodorization. Therefore, in the setting of the first filter element 21, the PP layer can be located above the carbon layer, so that the tap water can be filtered through the PP layer first and then through the carbon layer, so that the filtering effect is better. In addition, the carbon rod layer can be an activated carbon, and the carbon rod layer can re-filter the tap water after filtering through the first filter element 21 and the second filter element 22, and can remove discoloration, odor, organic chemicals, etc. in the water. The ultrafiltration layer can be an ultrafiltration membrane, and the ultrafiltration layer can re-filter the tap water after filtering through the carbon rod layer, and can remove smaller particles and harmful substances in the water.

[0072] Thus, the multiple filter elements combined in this way can obtain pure water after multiple filtrations, thereby meeting the user's drinking water needs. Moreover, since the carbon rod layer and the ultrafiltration layer are arranged axially at intervals, part of the water can be filtered through the carbon rod layer, and part of the water can be filtered through the ultrafiltration layer, wherein the filtration efficiency of the carbon rod layer is higher than that of the ultrafiltration layer, which can effectively ensure the supply of pure water and better meet the user's drinking water needs.

[0073] In the embodiment of the present invention, the first filter material 23 is a foldable filter material. Since the first filter element 21 and the second filter element 22 are cylindrical, the first filter material 23 can be easily formed by selecting the foldable filter material.

[0074] Also, if Figure 7As shown, each accommodating cavity 11 is provided with a first limiting portion (not shown in the figure), each filter element 20 is provided with an end cover, and the end cover is provided with a second limiting portion 28, and the first limiting portion cooperates with the second limiting portion 28 in circumferential limiting. The first limiting portion can be a cylindrical groove, and the second limiting portion 28 can be a cylindrical protrusion. The first limiting portion and the second limiting portion 28 can be provided with a corresponding number of multiples, so that the circumferential limiting effect can be better.

[0075] The structure and working principle of the waterway plate 30 are described in detail below.

[0076] like Figure 2 As shown, the filter element assembly 100 includes a waterway plate 30, which is disposed on the filter cartridge 10 and is respectively connected to the water inlet 114 and the water outlet 115 of each accommodating cavity 11. In this way, each accommodating cavity 11 can be connected to each other, thereby ensuring that the filter element 20 performs filtering work. For example, the waterway plate 30 can be disposed at the bottom of the filter cartridge 10. The waterway plate 30 is a type of connector. Of course, a water pipe structure can also be used as a connector to replace the waterway plate 30.

[0077] Specifically, Figure 2 As shown, the filter cartridge 10 includes: a barrel 12 and a bottom cover 13. A receiving groove 123 is provided at the bottom of the barrel 12. A waterway plate 30 is installed in the receiving groove 123. The receiving groove 123 is open toward the bottom. The bottom cover 13 covers the open side of the receiving groove 123. The waterway plate 30 is installed in the receiving groove 123 to avoid the waterway plate 30 occupying more space, thereby making the structure of the filter element assembly 100 more compact and improving the integration of the filter element assembly 100.

[0078] Specifically, Figure 8 As shown, a first channel 31, a second channel 32 and a third channel 33 are formed in the waterway plate 30, the first channel 31 has a first water inlet hole 311 and a first water outlet hole 312, the second channel 32 has a second water inlet hole 321 and a second water outlet hole 322, the second water inlet hole 321 includes two, the third channel 33 has a third water inlet hole 331 and a third water outlet hole 332, the first water outlet hole 312 and one of the two second water inlet holes 321 constitute a group of water outlets corresponding to the filter element 20, the first water inlet hole 311, one of the two second water inlet holes 321 and the third water outlet hole 332 constitute another group of water outlets corresponding to the filter element 20, and the second water outlet hole 322 and the third water inlet hole 331 constitute another group of water outlets corresponding to the filter element 20.

[0079] It is understandable that by providing the first channel 31, the second channel 32 and the third channel 33 on the waterway plate 30, the use of pipeline connection can be avoided, thereby reducing the production cost. In addition, the installation of pipeline connection is cumbersome, and the use of the waterway plate 30 can provide convenience for the installation work. Moreover, the waterway plate 30 provided in this way can effectively ensure that the two accommodating chambers 11 are connected in parallel and then connected in series with another accommodating chamber 11.

[0080] The flow of tap water in the waterway plate 30 will be described in detail below.

[0081] like Figure 8 As shown, when tap water flows into the second accommodating chamber 112 from the water inlet joint 14, a portion of the tap water directly flows into the first water inlet hole 311 of the first channel 31 from the first water outlet 1151 of the second accommodating chamber 112 without being filtered, flows into the first accommodating chamber 111 from the first water outlet 312 after passing through the first channel 31, and flows into the second channel 32 from the second water inlet hole 321 of the second channel 32 after being filtered in the first accommodating chamber 111. At the same time, another portion of the tap water flows into the second accommodating chamber 112 from the first water outlet 1151 of the second accommodating chamber 112 after being filtered. The water flows out from the second water outlet 1152, and then flows into the second channel 32 from the second water inlet hole 321 of the second channel 32. The water in the second channel 32 that has been initially filtered flows into the third accommodating chamber 113 from the second water outlet hole 322 of the second channel 32. After being filtered in the third accommodating chamber 113, the water enters the third channel 33 from the third water inlet hole 331 of the third channel 33, and then flows into the connecting pipe 17 located in the second accommodating chamber 112 from the third water outlet hole 332 of the third channel 33, and finally flows out from the water outlet joint 15.

[0082] More specifically, if Figure 8 As shown, the length direction of the first channel 31, the length direction of the second channel 32 and the length direction of the third channel 33 are arranged in parallel. The first channel 31, the second channel 32 and the third channel 33 are arranged horizontally in the length direction. On the one hand, the horizontal arrangement can make the flow rate of the internal water flow faster. On the other hand, the horizontal arrangement can make the shape of the waterway plate 30 adapt to the shape of the filter cartridge 10, which can facilitate the installation of the waterway plate 30 in the cylinder 12. The length direction of the first channel 31 is the same as the width direction of the filter element 20.

[0083] In addition, if Figure 8 As shown, the first channel 31 and the third channel 33 are located on the same side of the second channel 32. The central axis of the second channel 32 coincides with the midline of the width direction of the waterway plate 30, which can improve the structural stability of the waterway plate 30. It can be understood that the second channel 32 is relatively long, and arranging the first channel 31 and the third channel 33 on the same side can facilitate the arrangement of the three channels, and it is also convenient for the third channel 33 to be connected to the connecting pipe 17.

[0084] In detail, Figure 8 As shown, the axes of the first water inlet hole 311, the first water outlet hole 312, the second water inlet hole 321, the second water outlet hole 322, the third water inlet hole 331 and the third water outlet hole 332 are parallel, and are also parallel to the thickness direction of the waterway plate 30. In this way, it is convenient to connect the first water inlet hole 311, the first water outlet hole 312, the second water inlet hole 321, the second water outlet hole 322, the third water inlet hole 331 and the third water outlet hole 332 to the water receiving nozzle 116 on each accommodating cavity 11 at the same time, and the water receiving nozzle 116 on each accommodating cavity 11 can be matched in the water inlet hole or the water outlet hole accordingly.

[0085] In more detail, Figure 8 As shown, the first water inlet hole 311, the first water outlet hole 312, the second water inlet hole 321, the second water outlet hole 322, the third water inlet hole 331 and the third water outlet hole 332 are configured as plug-in holes. That is to say, the first water inlet hole 311, the first water outlet hole 312, the second water inlet hole 321, the second water outlet hole 322, the third water inlet hole 331 and the third water outlet hole 332 are connected to the water receiving nozzle 116 of each accommodating cavity 11 by plug-in, the plug-in hole is easy to process, and the plug-in method is reliable and convenient. In addition, in order to ensure the sealing of the plug-in, a sealing ring can be provided at the plug-in joint, thereby ensuring that the plug-in part will not leak water.

[0086] like Figure 8 As shown, the first channel 31, the second channel 32 and the third channel 33 are all provided with an open end 34, and a plug 341 is provided at the open end 34. If the filter element 20 fails and is not replaced in time, the first channel 31, the second channel 32 and the third channel 33 may be blocked by impurities in the water during long-term use. By providing an open side at the end of the first channel 31, the second channel 32 and the third channel 33, it is convenient to dredge the first channel 31, the second channel 32 and the third channel 33. After the dredging is completed, the plug 341 matched with the open end can be blocked, which is convenient for maintenance and can increase the service life of the filter cartridge 10. Moreover, by providing the plug 341, the production and manufacturing of the waterway plate 30 can also be facilitated.

[0087] In addition, if Figure 8 As shown, a plurality of mounting holes 35 are distributed on the waterway plate 30. Since the tap water in the filter cartridge 10 generates pressure on the waterway plate 30, in order to make the waterway plate 30 stably fit together with the accommodating cavity 11, nuts can be installed through the mounting holes 35 and the mounting screw holes 118 on the accommodating cavity 11, which can improve the degree of fit between the waterway plate 30 and the accommodating cavity 11.

[0088] In the embodiment of the present invention, the waterway plate 30 is an integrally formed plate structure. The integrally formed structure is simple, reliable, and easy to process, thereby reducing production costs.

[0089] The specific structure of the filter cartridge 10 according to the present invention is described in detail below.

[0090] like Figure 4 As shown, the filter cartridge 10 includes a cartridge body 12, the cartridge body 12 includes an outer casing 121 and a plurality of inner cylinders 122, the plurality of inner cylinders 122 define a receiving cavity 11, the outer casing 121 is disposed outside the plurality of inner cylinders 122 and is an integrally formed structure with the plurality of inner cylinders 122. It is understandable that, as Figure 4 As shown, the number of inner cylinders 122 corresponds to the number of accommodating chambers 11, and the outer cover shell 121 covers the three inner cylinders 122, so that the three inner cylinders 122 can be stably fixedly connected. In addition, the outer cover shell 121 and the three inner shells are integrally formed, which can be easily processed. In addition, the integrally formed structure can reduce the assembly steps and the structure is more stable.

[0091] Specifically, Figure 4 As shown, the inner cylinder 122 is set to be a hollow cylinder, and the two ends of the outer shell 121 in the second direction are arc-shaped structures to cooperate with the inner cylinder 122 located at both ends of the second direction. Among them, since the filter element 20 is a cylinder, the inner cylinder 122 is set to be a hollow cylinder to facilitate the placement of the filter element 20. In addition, the two ends of the outer shell 121 in the second direction are set to be arc-shaped structures, which can better cooperate with the inner cylinder 122. The setting of the arc-shaped structure can make the structure of the outer shell 121 more stable, and the arc-shaped structure can also make the filter cartridge 10 flat, thereby making the structure of the filter cartridge 10 more stable.

[0092] In an embodiment of the present invention, Figure 2 As shown, the filter cartridge 10 further includes: a top cover 18 and a sealing cover 16, the sealing cover 16 is sealed on the top of the accommodating chamber 11 where the water inlet joint 14 is not provided, the top cover 18 is provided on the top of the cylinder body 12, and the water inlet joint 14 and the water outlet joint 15 are penetrated by the top cover 18. The sealing cover 16 is used to seal the accommodating chamber 11, so as to prevent the tap water in the accommodating chamber 11 from overflowing. In addition, after the accommodating chamber 11 is sealed, in order to make the sealing cover 16 stably seal the accommodating chamber 11, the sealing cover 16 can be fixed by the top cover 18. In addition, a circular hole is also provided on the top cover 18 for the water inlet joint 14 and the water outlet joint 15 to be placed.

[0093] Specifically, Figure 2As shown, there are two sealing covers 16, and the two sealing covers 16 are respectively sealed on the top of the first accommodating chamber 111 and the third accommodating chamber 113. Since the tops of the first accommodating chamber 111 and the third accommodating chamber 113 are not provided with water passages, the sealing covers 16 can be used to cover the tops of the first accommodating chamber 111 and the third accommodating chamber 113, which can prevent liquid from overflowing from the accommodating chamber 11 on the one hand, and prevent the tap water in the accommodating chamber 11 from being contaminated again on the other hand.

[0094] In some embodiments of the present invention, Figure 1 As shown, the bottom of each accommodating cavity 11 is provided with a limiting portion 117 for limiting the filter element 20. It is understandable that when the filter element 20 is placed in the accommodating cavity 11, the filter element 20 needs to be limited, so as to prevent the filter element 20 from loosening in the water flow and reducing the filtering effect of the filter element 20.

[0095] Specifically, Figure 1 As shown, the limiting portion 117 is annular, and the water inlet 114 and the water outlet 115 are distributed on both sides of the limiting portion 117. In this way, the tap water flowing into the accommodating chamber 11 from the water inlet 114 can be replenished in time while the filtered tap water flows out from the water outlet 115.

[0096] In an embodiment of the present invention, Figure 4 and Figure 6 As shown, there can be three accommodating chambers 11, and the three accommodating chambers 11 have the same height. Since the three accommodating chambers 11 are interconnected, the three accommodating chambers 11 are set at the same height, so that the liquid pressure in each accommodating chamber 11 can be equal, thereby preventing the liquid level of one accommodating chamber 11 from being higher than the liquid levels of other accommodating chambers 11, causing the tap water to quickly flow into the accommodating chamber 11 with a lower liquid level, resulting in a decrease in the filtering effect of the filter element 20.

[0097] The water purifier according to the present invention includes the above-mentioned filter element assembly 100. The water purifier having the filter element assembly 100 according to the embodiment of the present invention has a more compact structure and occupies a smaller space, which can save more space for users, thereby improving the user experience.

[0098] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0099] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. In the description of the present invention, a first feature "above", "above" and "above" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0100] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0101] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A filter element assembly, characterized in that: include: A filter cartridge, wherein a plurality of accommodating cavities are defined in the filter cartridge, the plurality of accommodating cavities are interconnected and at least two of the accommodating cavities are connected in parallel, and the filter cartridge comprises: a water inlet connector and a water outlet connector; A plurality of filter elements, wherein the plurality of filter elements are respectively disposed in the plurality of accommodating chambers; The plurality of accommodating chambers include a first accommodating chamber, a second accommodating chamber and a third accommodating chamber, the second accommodating chamber is located between the first accommodating chamber and the third accommodating chamber, the water inlet joint and the water outlet joint both correspond to the top of the second accommodating chamber, a connecting pipe is provided in the second accommodating chamber, and the second accommodating chamber is connected in parallel with the first accommodating chamber and then connected in series with the third accommodating chamber; The filter element assembly further includes: a waterway plate, which is disposed on the filter cartridge and is respectively connected to the water inlet and the water outlet of each accommodating cavity; The filter cartridge comprises: a cylinder body and a bottom cover, the bottom of the cylinder body is provided with a receiving groove, the waterway plate is installed in the receiving groove, and the bottom cover is sealed on the open side of the receiving groove; A first channel, a second channel and a third channel are formed in the waterway plate, the first channel is connected to the water inlet of the first accommodating chamber and the first water outlet of the second accommodating chamber, the second channel is connected to the water outlet of the first accommodating chamber, the second water outlet of the second accommodating chamber and the water inlet of the third accommodating chamber, and the third channel is connected between the water outlet of the third accommodating chamber and the end of the connecting pipe.

2. The filter element assembly according to claim 1, characterized in that: The water inlet joint is sleeved on the water outlet joint, and the water inlet joint and the water outlet joint are connected to the top of the same accommodating cavity.

3. The filter element assembly according to claim 2, characterized in that: The bottom of each accommodating cavity is provided with a water inlet and a water outlet for communicating with other accommodating cavities, and a connecting pipe is provided in the accommodating cavity connected with the water outlet joint, and the connecting pipe is connected with the water outlet joint.

4. The filter element assembly according to claim 3, characterized in that: The plurality of filter elements include a first filter element, a second filter element and a third filter element, and the first filter element, the second filter element and the third filter element are respectively disposed in the first accommodating chamber, the second accommodating chamber and the third accommodating chamber; Each filter element divides the space of the accommodating cavity into an unfiltered cavity portion and a filtered cavity portion. The unfiltered cavity portions of the first filter element and the third filter element correspond to the water inlet and the filtered cavity portions correspond to the water outlet. The second filter element corresponds to two water outlets, which are the first water outlet and the second water outlet respectively. The unfiltered cavity portion of the second filter element corresponds to the first water outlet, and the filtered cavity portion corresponds to the second water outlet and a through hole for the connecting pipe to pass through.

5. The filter element assembly according to claim 4, characterized in that: The first filter element and the second filter element are filter elements with the same filter material, and the third filter element is a filter element with a filter material different from that of the first filter element.

6. The filter element assembly according to claim 5, characterized in that: The first filter element and the second filter element both include a carbon layer and a PP layer, and the PP layer and the carbon layer are axially spaced apart in the second accommodating cavity. The third filter element includes: a carbon rod layer and an ultrafiltration layer, and the carbon rod layer and the ultrafiltration layer are axially spaced apart in the third accommodating cavity.

7. The filter element assembly according to claim 1, characterized in that: The filter cartridge includes: a cylinder body, a top cover and a sealing cover. The sealing covers are two and are respectively sealed on the top of the first accommodating chamber and the third accommodating chamber. The top cover is arranged on the top of the cylinder body, and the water inlet joint and the water outlet joint are passed through the top cover.

8. A water purifier, characterized in that: include: The filter element assembly according to any one of claims 1 to 7.

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