Filter element assembly and water purifier

Abstract

The utility model discloses a filter element assembly and a water purifier, and relates to the technical field of water purification equipment, the filter element assembly comprises a filter element main body and a cover plate, the top of the filter element main body is provided with a plurality of water passing holes, the filter element main body is also provided with a plurality of filter channels, and the liquid inlet end and the liquid outlet end of each filter channel are respectively communicated with two corresponding water passing holes; the cover plate covers the top of the filter element main body, the cover plate is provided with a connecting area, and the connecting area is provided with a plurality of adapter holes; wherein a switching structure is arranged between the top of the filter element main body and the cover plate, so that a plurality of switching channels are defined between the filter element main body and the cover plate, each switching channel is communicated with the corresponding water passing hole and the switching hole, and even if the position of the water passing hole is limited, the switching channel is introduced, so that the water passing hole can be switched to the switching hole; therefore, the plurality of adapter holes can be arranged in a connecting area with smaller deformation tolerance and can be aligned with hole sites on the waterway board more accurately, and the risk of center distance deviation is reduced.

Description

Technical Field

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

[0002] In existing designs for integrating composite filter cartridges with water systems, the presence of multiple filtration channels within the composite filter cartridge results in a large number of first and second connecting ports. The distribution of these ports is constrained by the arrangement of the filtration channels within the filter cartridge, leading to a significant center-to-center distance between multiple first and second connecting ports on the plastic cover. As the center-to-center distance increases, manufacturing tolerances also increase, potentially causing deviations in the center-to-center distance between the corresponding holes on the water system plate and the filter cartridge cover.

[0003] When this deviation accumulates to a certain extent, the sealing ring installed between the water circuit board and the filter element will face uneven compression. This situation may cause the sealing ring to fail to seal effectively, leading to water leakage and seriously affecting the normal operation of the equipment. Utility Model Content

[0004] The main purpose of this utility model is to propose a filter element assembly and a water purifier, which aims to solve the problem that the sealing ring is not compressed evenly when the filter element and water circuit board are assembled, and cannot effectively seal the filter element and water circuit board.

[0005] To achieve the above objectives, the filter element assembly proposed in this utility model includes:

[0006] The filter element body has multiple water passage holes on its top and multiple filtration channels on its surface. The inlet and outlet ends of each filtration channel are respectively connected to two corresponding water passage holes.

[0007] A cover plate is placed on top of the filter element body, and the cover plate has a connection area with multiple adapter holes.

[0008] A transition structure is provided between the top of the filter element body and the cover plate to define multiple transition channels between the filter element body and the cover plate. Each transition channel connects to the corresponding water passage and the transition hole.

[0009] In one embodiment, the adapter structure includes a plurality of annular protrusions, which are disposed around the corresponding water passage holes and adapter holes.

[0010] In one embodiment, the annular protrusion includes a first annular protrusion and a second annular protrusion respectively disposed on the filter element body and the cover plate. When the cover plate is placed on the top of the filter element body, the end face of the first annular protrusion and the end face of the second annular protrusion are aligned and abut against each other.

[0011] In one embodiment, the first annular protrusion is welded to the second annular protrusion.

[0012] In one embodiment, the cover plate extends into an extension portion toward the filter element body, the bottom of the extension portion is spaced apart from the filter element body, and the adapter hole is disposed through the extension portion.

[0013] In one embodiment, the annular protrusion is configured as a circular ring.

[0014] In one embodiment, the connection area is located in the middle of the cover plate.

[0015] In one embodiment, the cover plate is made of plastic.

[0016] In one embodiment, the filter element body includes a composite filter element.

[0017] This utility model also proposes a water purifier, which includes:

[0018] Filter cartridge assembly; and,

[0019] A water channel plate is disposed on the side of the cover plate away from the filter element body. The water channel plate has multiple first connecting ports, multiple second connecting ports, and multiple flow channels respectively connecting the multiple first connecting ports and the multiple second connecting ports. The multiple first connecting ports are disposed on the side of the water channel plate facing the cover plate, and the multiple second connecting ports are disposed on the peripheral sidewall of the water channel plate; and...

[0020] A sealing ring is provided between the cover plate and the water channel plate;

[0021] The filter assembly includes:

[0022] The filter element body has multiple water passage holes on its top and multiple filtration channels on its surface. The inlet and outlet ends of each filtration channel are respectively connected to two corresponding water passage holes.

[0023] A cover plate is placed on top of the filter element body, and the cover plate has a connection area with multiple adapter holes.

[0024] A transition structure is provided between the top of the filter element body and the cover plate to define multiple transition channels between the filter element body and the cover plate. Each transition channel connects to the corresponding water passage and the transition hole.

[0025] In the technical solution of this utility model, a plurality of water passage holes are provided on the top of the filter element body and are respectively connected to the plurality of filter channels. The cover plate is placed on the top of the filter element body and has a connecting area with a plurality of transition holes. By providing a transition structure between the top of the filter element body and the cover plate, a plurality of transition channels are formed between the filter element body and the cover plate. Each transition channel connects the corresponding water passage hole and the transition hole. Even if the position of the water passage hole is limited, by introducing the transition channel, the plurality of transition holes can be set in the connecting area with a small deformation tolerance, which can more accurately align with the holes on the water circuit board, reducing the risk of center distance deviation. The sealing ring can be accurately and evenly clamped between the corresponding holes of the water circuit board and the cover plate, solving the problem that the sealing ring is not compressed evenly when assembling the filter element and the water circuit board in the existing process, and cannot effectively seal the filter element and the water circuit board. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A schematic diagram of a structure of an embodiment of the filter element assembly and water circuit board provided by this utility model;

[0028] Figure 2 for Figure 1 Exploded view of the middle filter element assembly and water circuit board;

[0029] Figure 3 for Figure 1 Top view of the middle filter assembly and water circuit board;

[0030] Figure 4 for Figure 3 A cross-sectional schematic diagram of AA in the middle;

[0031] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0032] Figure 6 for Figure 1 A schematic diagram of the water channel plate in the middle;

[0033] Figure 7 for Figure 2 Schematic diagram of the middle cover plate;

[0034] Figure 8 for Figure 2 Another structural schematic diagram of the middle cover plate;

[0035] Figure 9 for Figure 1 A schematic diagram of the main body of the filter element.

[0036] Explanation of icon numbers:

[0037] 100. Filter element assembly; 1. Filter element body; a. Water passage hole; b. Filter channel; 2. Cover plate; 2a. Connection area; c. Adapter hole; d. Adapter channel; 3. Annular protrusion; 31. First annular protrusion; 32. Second annular protrusion; 33. Extension; 4. Water circuit plate; e. First connecting port; f. Second connecting port; 5. Sealing ring.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0040] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] In existing designs for the integration of composite filter cartridges with water systems, the multiple filtration channels within the composite filter cartridge result in a large number of first and second connecting ports. The distribution of these ports is constrained by the arrangement of the internal filtration channels, leading to a significant center-to-center distance between multiple first and second connecting ports on the plastic cover. As the center-to-center distance increases, manufacturing tolerances also increase, potentially causing deviations in the center-to-center distance between the corresponding holes on the water circuit board and the filter cartridge cover. When this deviation accumulates to a certain extent, the sealing ring installed between the water circuit board and the filter cartridge will face uneven compression. This can result in ineffective sealing, leading to leaks and severely impacting the normal operation of the equipment.

[0043] This utility model proposes a filter element assembly, which aims to solve the problem that the sealing ring is not compressed evenly when the existing filter element is assembled with the water circuit board, and thus cannot effectively seal the filter element and the water circuit board.

[0044] Please see Figure 1 , Figure 2 , Figures 7 to 9 In one embodiment of this utility model, the filter element assembly 100 includes a filter element body 1 and a cover plate 2. The top of the filter element body 1 is provided with a plurality of water passage holes a, and the filter element body 1 is also provided with a plurality of filtration channels b. The inlet end and outlet end of each filtration channel b are respectively connected to two corresponding water passage holes a. The cover plate 2 is placed on the top of the filter element body 1. The cover plate 2 has a connecting area 2a, and the connecting area 2a is provided with a plurality of transition holes c. A transition structure is provided between the top of the filter element body 1 and the cover plate 2 to define a plurality of transition channels d between the filter element body 1 and the cover plate 2. Each transition channel d is connected to the corresponding water passage hole a and the transition hole c.

[0045] The top of the filter element body 1 is provided with multiple water passage holes a. The filter element body 1 contains multiple filtration channels b, each of which is provided with corresponding filter media. The inlet and outlet ends of each channel are respectively connected to the corresponding water passage holes a, thereby realizing the flow of liquid between different filtration channels b. When different filter media are used, different types of impurities in the liquid can be filtered.

[0046] The multiple filter channels b can be arranged in series or in parallel, and this utility model does not limit this.

[0047] The cover plate 2 covers the top of the filter element body 1, serving to seal, fix, and connect. The cover plate 2 has a specific area, namely the connection area 2a, within which are the plurality of adapter holes c. The adapter holes c are used to connect to an external water system, allowing liquid to enter and exit the filter element assembly 100.

[0048] It should be noted that the connection area 2a can be an area where the deformation and tolerance of the cover plate 2 are small, so as to minimize the deviation of the center distance of the multiple adapter holes c caused by manufacturing tolerances.

[0049] The connecting structure defines multiple connecting channels d between the cover plate 2 and the filter element body 1, so as to connect the water passage a on the filter element body 1 with the connecting hole c on the cover plate 2. Even if the water passage a is restricted by the position arrangement of the filter channels b, it can ensure that the liquid flows smoothly into and out of each filter channel b in the filter element body 1.

[0050] It is understood that the transition structure can be integrally formed on the cover plate 2, or the filter element body 1, or a structure formed by multiple components separately disposed on the cover plate 2 and the filter element body 1. Of course, the transition structure can also be a separately formed component sandwiched between the cover plate 2 and the filter element body 1 to enclose and form the multiple transition channels d. Other possible shapes can also be adopted, and the specific design can be determined according to the actual situation. This specification does not limit this embodiment.

[0051] In the technical solution of this utility model, a plurality of water passage holes a are provided on the top of the filter element body 1, which are respectively connected to the plurality of filter channels b. The cover plate 2 is placed on the top of the filter element body 1, and the cover plate 2 has a connecting area 2a, which is provided with a plurality of transition holes c. By providing a transition structure between the top of the filter element body 1 and the cover plate 2, a plurality of transition channels d are formed between the filter element body 1 and the cover plate 2, and each of the transition channels d is connected to the corresponding water passage hole a and Even if the position of the water passage hole a is restricted, by introducing the transition channel d, the multiple transition holes c can be set in the connection area 2a with a small deformation tolerance, which can more accurately align with the holes on the water circuit plate 4, reducing the risk of center distance deviation. The sealing ring 5 can be accurately and evenly clamped between the corresponding holes of the water circuit plate 4 and the cover plate 2, solving the problem that the sealing ring 5 is not compressed evenly when the filter element is assembled with the water circuit plate 4, and cannot effectively seal the filter element and the water circuit plate 4.

[0052] Further, please refer to Figures 7 to 9 In this embodiment, the connecting area 2a is disposed in the middle of the cover plate 2.

[0053] Understandably, if the multiple water passage holes a are distributed widely, the center distance between the holes will increase, and the cumulative error will make the manufacturing tolerances have a more significant impact on the final product. Even a small deviation in any single hole position can lead to a decrease in overall assembly accuracy.

[0054] When the water passage holes a are concentrated in the middle, the relative distance between the multiple water passage holes a is short. Therefore, even if manufacturing tolerances exist, these tolerances have a smaller impact on the overall structure.

[0055] Specifically, please refer to Figure 5 , Figure 8 and Figure 9 In this embodiment, the adapter structure includes a plurality of annular protrusions 3, which are disposed around the corresponding water passage hole a and adapter hole c.

[0056] Understandably, each of the annular protrusions 3 is matched with a water passage a and a corresponding transition hole c, such that each combination of water passage a and each transition hole c has an independent annular protrusion 3 surrounding them. Thus, even with multiple water passages a and transition holes c, each connection point can achieve an independent and reliable sealing effect.

[0057] The annular protrusion 3 is located around the water passage hole a and the transition hole c. In this way, a liquid flow path is formed between the annular protrusion 3, the cover plate 2 and the filter element body 1. The size, position and shape of each annular protrusion 3 can be flexibly set according to the actual situation.

[0058] Specifically, please refer to Figure 8 and Figure 9 In this embodiment, the annular protrusion 3 includes a first annular protrusion 31 and a second annular protrusion 32 respectively disposed on the filter element body 1 and the cover plate 2. When the cover plate 2 is placed on the top of the filter element body 1, the end face of the first annular protrusion 31 and the end face of the second annular protrusion 32 are aligned and abut against each other.

[0059] Understandably, higher annular protrusions are prone to warping or twisting during cooling due to uneven shrinkage, affecting the dimensional accuracy and flatness of the finished product.

[0060] The first annular protrusion 31 and the second annular protrusion 32 are respectively provided on the filter element body 1 and the cover plate 2. The first annular protrusion 31 and the second annular protrusion 32 are set at reasonable heights. While ensuring that the transfer channel d can be formed, the first annular protrusion 31 has little impact on the forming of the filter element body 1, and the second annular protrusion 32 has little impact on the forming of the cover plate 2, thus avoiding deviations in center distance caused by tolerances.

[0061] Specifically, in this embodiment, the first annular protrusion 31 is welded to the second annular protrusion 32.

[0062] To ensure a tight connection between the cover plate 2 and the filter element body 1 and to prevent liquid leakage, the first annular protrusion 31 on the filter element body 1 and the second annular protrusion 32 on the cover plate 2 are securely connected together by welding. This not only enhances mechanical strength but also provides a reliable sealing effect.

[0063] Welding can be achieved through different methods. In this embodiment, it can be achieved through hot plate welding and ultrasonic welding.

[0064] It should be noted that hot plate welding is a process that uses a heating plate to melt the contact surfaces of the parts to be welded, then removes the heating plate and applies pressure to bond the two parts together. The specific steps are as follows: Place the filter element body 1 and the cover plate 2 on opposite sides of the welding equipment. Simultaneously contact the mating surfaces of the first annular protrusion 31 and the second annular protrusion 32 with the heating plate until they reach a molten state. Remove the heating plate and quickly press the two parts together. Maintain a certain pressure during the cooling process until the welded area is completely solidified.

[0065] Ultrasonic welding utilizes the frictional heat generated by high-frequency vibration to locally melt the plastic material, thereby achieving a fast and strong connection. The specific steps are as follows: Position the filter element body 1 and the cover plate 2, ensuring that the first annular protrusion 31 and the second annular protrusion 32 are aligned. Use an ultrasonic welding machine to concentrate energy at the welding interface. The vibrating head applies pressure while generating high-frequency vibration, causing the contact surface to rapidly heat up to its melting point. After stopping the vibration, continue maintaining pressure until the welded area cools and solidifies.

[0066] Understandably, the choice between hot plate welding and ultrasonic welding depends on factors such as specific material properties, welding area, production scale, and cost considerations.

[0067] Further, please refer to Figure 8 In this embodiment, the cover plate 2 extends into an extension portion 33 toward the filter element body 1, the bottom of the extension portion 33 is spaced apart from the filter element body 1, and the adapter hole c is disposed through the extension portion 33.

[0068] Please see Figures 4 to 6When the cover plate 2 and the water channel plate 4 are assembled, a protruding post is provided on the side of the water channel plate 4 facing the cover plate 2. The end face of the protruding post is provided with a first communication port e. The flow channel of the water channel plate 4 passes through the protruding post and communicates with a second communication port f provided on the peripheral side wall of the water channel plate 4. When the water channel plate 4 and the cover plate 2 are assembled, the protruding post passes through the transition hole c and needs to form a seal between the protruding post and the hole wall of the transition hole c. Therefore, a sealing ring 5 is also required, so that the sealing ring 5 is placed between the hole wall of the transition hole c and the outer peripheral wall of the protruding post.

[0069] However, the height of the hole wall of the adapter hole c depends on the thickness of the cover plate 2. If the cover plate 2 is too thin, it cannot provide a large sealing surface for the sealing ring 5. If the cover plate 2 is too thick, it will result in a waste of cost and the molding process will be prone to warping and deformation.

[0070] In order to facilitate the formation of a larger mating surface between the water channel plate 4 and the cover plate 2, and to facilitate the sealing of the sealing ring 5, the extension 33 is provided so that the height of the transition hole c can be increased and the hole wall surface of the transition hole c is larger, which facilitates the installation of the sealing ring 5.

[0071] It is understandable that, since the size of the annular protrusion 3 depends on the relative offset distance between the transition hole c and the water passage hole a on the cross section of the filter element body 1, when the distance between the transition hole c and the water passage hole a is large, the volume of the transition channel d formed by the annular protrusion 3 is relatively large, thus making the water flowing through this area flow out at a slower speed.

[0072] Thus, by setting the annular extension 33 and placing the annular extension 33 within the transfer channel d, a portion of the space of the transfer channel d can be occupied, and the problem of slow water flow velocity in this area can also be improved.

[0073] Further, please refer to Figures 7 to 9 In this embodiment, the annular protrusion 3 is configured as a circular ring.

[0074] It should be noted that the term "ring" does not refer to a perfect circle. Any shape that is close to a circle, ellipse, or has no sharp corners is within the scope of protection of this utility model.

[0075] In this filter element assembly 100, the annular protrusion 3 presents a nearly complete circular outline in its cross-section, surrounding the corresponding water passage a and the transition hole c. The annular structure can provide a consistent pressure distribution across the entire contact surface, avoiding localized stress concentration.

[0076] Specifically, in this embodiment, the cover plate 2 is made of plastic.

[0077] Due to the lightweight and durability of plastic materials, they are suitable for various working environments; they are easy to mold and process, reducing manufacturing costs and improving production efficiency; their wide temperature adaptability and anti-aging properties ensure the long-term stable performance of the plastic sheets.

[0078] In this embodiment, the filter element body 1 includes a composite filter element.

[0079] The filter element body 1 contains a composite filter element. It should be noted that a composite filter element refers to a filter element composed of multiple different materials or structures, designed to achieve more efficient and comprehensive water purification through a multi-layer or multi-stage filtration mechanism. Composite filter elements typically consist of a series of filter media, which can be granular, fibrous, or other forms, each responsible for removing specific types of contaminants.

[0080] This utility model also proposes a water purifier; please refer to [link / reference needed]. Figures 1 to 3 The water purifier includes a sealing ring 5, a water channel plate 4, and a filter element assembly 100. The water channel plate 4 is located on the side of the cover plate 2 away from the filter element body 1. The water channel plate 4 is provided with a plurality of first connecting ports e, a plurality of second connecting ports f, and a plurality of flow channels that respectively connect the plurality of first connecting ports e and the plurality of second connecting ports f. The plurality of first connecting ports e are located on the side of the water channel plate 4 facing the cover plate 2, and the plurality of second connecting ports f are located on the peripheral sidewall of the water channel plate 4. The sealing ring 5 is placed between the cover plate 2 and the water channel plate 4.

[0081] The specific structure of the filter element assembly 100 is as described in the above embodiments. Since this water purifier adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0082] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A filter element assembly, characterized in that, include: The filter element body has multiple water passage holes on its top and multiple filtration channels on its surface. The inlet and outlet ends of each filtration channel are respectively connected to two corresponding water passage holes. A cover plate is placed on top of the filter element body, and the cover plate has a connection area with multiple adapter holes. A transition structure is provided between the top of the filter element body and the cover plate to define multiple transition channels between the filter element body and the cover plate. Each transition channel connects to the corresponding water passage and the transition hole.

2. The filter element assembly as described in claim 1, characterized in that, The adapter structure includes multiple annular protrusions, which are located around the corresponding water passage holes and adapter holes.

3. The filter element assembly as described in claim 2, characterized in that, The annular protrusion includes a first annular protrusion and a second annular protrusion respectively disposed on the filter element body and the cover plate. When the cover plate is placed on the top of the filter element body, the end face of the first annular protrusion and the end face of the second annular protrusion are aligned and abut against each other.

4. The filter element assembly as described in claim 3, characterized in that, The first annular protrusion is welded to the second annular protrusion.

5. The filter element assembly as described in claim 2, characterized in that, The cover plate extends into an extension portion toward the filter element body, the bottom of the extension portion is spaced apart from the filter element body, and the adapter hole is provided through the extension portion.

6. The filter element assembly as described in claim 2, characterized in that, The annular protrusion is configured as a circular ring.

7. The filter element assembly as claimed in claim 1, characterized in that, The connection area is located in the middle of the cover plate.

8. The filter element assembly as claimed in claim 1, characterized in that, The cover plate is made of plastic.

9. The filter element assembly as claimed in claim 1, characterized in that, The filter element body includes a composite filter element.

10. A water purifier, characterized in that, include: The filter assembly as described in any one of claims 1 to 9; as well as, A water channel plate is disposed on the side of the cover plate away from the filter element body. The water channel plate has multiple first connecting ports, multiple second connecting ports, and multiple flow channels respectively connecting the multiple first connecting ports and the multiple second connecting ports. The multiple first connecting ports are disposed on the side of the water channel plate facing the cover plate, and the multiple second connecting ports are disposed on the peripheral sidewall of the water channel plate; and... A sealing ring is provided between the cover plate and the water channel plate.

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