WO2018129745A1 - Filter element assembly and water purifier provided with same - Google Patents

Abstract

A filter element assembly (100) and a water purifier provided with the same. The filter element assembly (100) comprises a filter housing (10), a joint (20), a seal cover (30), a filter element (40), and a central tube (50). A water inlet and a water outlet are formed in the joint (20). The seal cover (30) comprises a joint tube (31), a supporting plate (32), a first baffle plate (33), a second baffle plate (34), and a supporting rib (35). The outer end of the joint tube (31) is connected to the joint (20). The supporting plate (32) is disposed outside the inner end of the joint tube (31). The first baffle plate (33) and the second baffle plate (34) are disposed on the supporting plate (32). The supporting rib (35) is disposed on the supporting plate (32). The filter element (40) is clipped between the first baffle plate (33) and the second baffle plate (34). The central tube (50) is plugged in the joint tube (31) and communicates with the water outlet.

Description

Filter element and water purifier with same Technical field

The present invention relates to the field of water purification equipment, and more particularly to a filter element assembly and a water purifier having the same.

Background technique

The end face sealing of the PP cotton filter in the related art mainly adopts the method of hot melt adhesive, 704 silica gel (a one-component room temperature vulcanized silicone rubber) to seal the water, avoiding water flow and water, not only low in operation efficiency, but also in production cost. High, and the use of hot melt adhesive, 704 silica gel is likely to lead to food hygiene and safety hazards. The odor, color and volatiles generated during use also seriously affect the user experience.

Summary of the invention

The present invention aims to solve at least one of the technical problems in the related art to some extent.

To this end, the present invention provides a filter element assembly that has a simple structure, good sealing performance, high production efficiency, good health and safety, and good user experience.

The invention also proposes a water purifier having the above-described filter element assembly.

A filter cartridge assembly according to an embodiment of the first aspect of the present invention includes: a filter housing, a joint, a cover, a filter cartridge, and a center tube, wherein the filter housing defines a filter chamber, and the joint is disposed on the filter housing, the joint The water inlet and the water outlet are connected to the filter chamber, and the cover is disposed on the joint and located in the filter chamber, the cover comprises: a joint tube, a support plate and a first partition The second baffle and the support rib, the joint pipe is formed in a tubular shape extending along an axial direction of the filter casing, an outer end of the joint pipe is connected to the joint, and the support plate is disposed at the An outer side of the inner end of the joint tube and extending outward in a radial direction of the filter housing, the first partition and the second partition being respectively disposed on the support plate and extending toward the filter housing The first partition plate and the second partition plate are respectively formed into a ring shape extending along a circumferential direction of the filter case, and the support rib is disposed on the support plate and located at the first partition plate and the first Between the two partitions, the filter element is disposed in the filter chamber and is engaged with the first partition and the second partition Between one end of the filter element abuts against the strut, the central tube inserted in the fitting and tube in communication with the water outlet.

According to the filter element assembly of the embodiment of the present invention, the filter element is engaged between the first partition plate and the second partition plate by providing a support rib on the support plate between the first partition plate and the second partition plate of the cover When the end face of the filter element stops against the support rib on the support plate, the support rib on the support plate is embedded in the end face of the filter element, which can enhance the sealing property between the end face of the filter element and the support plate, and avoid leaving between the support plate and the end face of the filter element. The phenomenon of water shattering occurs when there is a gap, and the mechanical matching of the support ribs on the support plate and the end face of the filter element is adopted, that is, the sealing of the filter element assembly by means of hot melt adhesive or 704 silica gel can not only improve the production efficiency, but also improve the production efficiency. Achieve the effect of “free glue” and eliminate the safety hazard caused by hot melt adhesive and 704 silica gel. The sealing performance of the filter element is increased, giving the user a good experience. The filter element assembly has the advantages of simple structure, good sealing performance, high production efficiency, good health and safety, and good user experience.

In addition, the filter element assembly according to the embodiment of the present invention may further have the following additional technical features:

According to an embodiment of the invention, the water inlet is provided on both sides of the joint.

According to an embodiment of the invention, the support rib is formed in a ring shape extending in the circumferential direction of the filter housing.

According to an embodiment of the invention, the support ribs are one piece.

According to an embodiment of the present invention, the first partition plate is disposed coaxially with the second partition plate and the first partition plate is located at an outer circumference of the second partition plate, and a cross section of the filter element is formed in a ring shape.

According to an embodiment of the invention, the inner wall surface of the filter element is in an interference fit with the outer wall surface of the second partition.

According to an embodiment of the invention, the outer wall surface of the filter element is in an interference fit with the inner wall surface of the first partition.

According to an embodiment of the invention, the axial height of the first partition is smaller than the axial height of the second partition.

According to an embodiment of the invention, the closure is an integrally formed piece.

A water purifier according to a second aspect of the present invention includes the filter element assembly described in the above embodiments.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

1 is a schematic structural view of a filter element assembly according to an embodiment of the present invention;

Fig. 2 is an enlarged view of a portion A in Fig. 1.

Figure 3 is a bottom plan view of a joint of a cartridge assembly in accordance with an embodiment of the present invention;

Figure 4 is a cross-sectional view taken along line B-B of Figure 3;

Figure 5 is a schematic view showing the structure of a filter element assembly in accordance with another embodiment of the present invention.

Reference mark:

100: filter element assembly;

10: filter housing; 10a: filter chamber; 11: filter shell support rib;

20: joint;

21: main body portion; 22: joint connection portion; 23: water dividing column.

30: cover;

31: joint pipe; 32: support plate; 33: first partition; 34: second partition; 35: support rib;

40: filter element;

50: Central tube.

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

The filter cartridge assembly 100 according to the embodiment of the first aspect of the present invention will be specifically described below with reference to FIGS. 1 through 5.

The filter cartridge assembly 100 according to an embodiment of the present invention includes a filter housing 10, a joint 20, a cover 30, a filter cartridge 40, and a center tube 50.

Specifically, the filter housing 10 defines a filter chamber 10a. The joint 20 is disposed on the filter housing 10. The joint 20 is provided with a water inlet and a water outlet communicating with the filter chamber 10a. The cover 30 is disposed on the joint 20 and located at In the filter chamber 10a, the cover 30 includes a joint pipe 31, a support plate 32, a first partition plate 33, a second partition plate 34, and a support rib 35, and the joint pipe 31 is formed in a tubular shape extending in the axial direction of the filter case 10. The outer end of the joint pipe 31 is connected to the joint 20, and the support plate 32 is disposed outside the inner end of the joint pipe 31 and extends outward in the radial direction of the filter casing 10, and the first partition plate 33 and the second partition plate 34 are respectively disposed on the support The plate 32 extends toward the inside of the filter housing 10, and the first partition plate 33 and the second partition plate 34 are respectively formed in an annular shape extending along the circumferential direction of the filter housing 10, and the support rib 35 is disposed on the support plate 32 and located at the first partition. Between the plate 33 and the second partition plate 34, the filter element 40 is disposed in the filter chamber 10a and is engaged between the first partition plate 33 and the second partition plate 34. One end of the filter element 40 abuts against the support rib 35, and the center tube 50 It is inserted into the joint pipe 31 and communicated with the water outlet.

In other words, the filter element assembly 100 is mainly composed of a filter housing 10, a joint 20, a cover 30, a filter element 40, and a center tube 50. The interior of the filter housing 10 defines a filter chamber 10a at the lower end of the joint 20 (as shown in FIG. 1). The upper and lower direction has a water inlet and a water outlet communicating with the filter chamber 10a, and the upper end of the joint connecting portion 22 of the joint 20 is connected to the filter housing 10, and the cover 30, the filter element 40 and the center tube 50 are located in the filter chamber 10a. The center tube 50 is located at a central position of the filter chamber 10a, and the center tube 50 extends along the central axis of the filter housing 10, and the lower end of the center tube 50 is inserted into the joint 20 and communicates with the water outlet on the joint 20.

The cover 30 is mainly composed of a joint pipe 31, a support plate 32, a first partition plate 33, a second partition plate 34 and a support rib 35. The joint pipe 31 is arranged in a tubular shape along the axial direction of the filter casing 10, and the joint pipe 31 is The outer side is connected to the inner side of the joint 20, the support plate 32 is disposed at the outer end of the inner side of the joint 20, and extends outward in the radial direction of the filter housing 10, and the first partition is arranged at a radial interval along the support plate 32. The plate 33 and the second partition 34, that is, the first partition 33 and the second partition 34 are spaced apart in the radial direction of the support plate 32, specifically, the first partition 33 is located on the outer circumference of the support plate 32, and the second partition The plate 34 is located inside the support plate 32, and the first partition 33 and the second partition 34 are respectively arranged in a ring shape along the circumferential direction of the filter housing 10.

In addition, a support rib 35 is further disposed on the upper end surface of the support plate 32. Alternatively, the support rib 35 may be formed in a triangular shape, and the support rib 35 is located between the first partition 33 and the second partition 34. When the 40 card is connected between the first partition plate 33 and the second partition plate 34, the lower end surface of the filter element 40 is in contact with the upper end surface of the support plate 32, and the lower end surface of the filter element 40 is abutted against the support rib 35, and the support rib 35 is The top is embedded in the end face of the filter element 40 to ensure the between the support plate 32 and the filter element 40. The sealing property and the connection reliability prevent the occurrence of water in the filter element assembly 100, and the upper end of the center tube 50 can be supported by the filter support ribs 11 (as shown in FIG. 5), thereby facilitating the outflow of clean water through the center tube 50.

When the filter assembly 100 is in operation, the water flow enters the filter chamber 10a from the water inlet on the joint 20, passes through the outer side of the cover 30 to the filter element 40, continues to flow upward through the filtering action of the filter element 40, and is again filtered at the upper end of the center tube 50. The filtered water passes through the upper end of the central tube 50 into the central tube 50, flows along the central tube 50 to the water outlet, and the filtered water after a plurality of filtrations finally flows out of the filter element assembly 100 for use by the user.

Thus, according to the filter element assembly 100 of the embodiment of the present invention, the support member 35 is disposed on the support plate 32 between the first partition 33 and the second partition 34 of the cover 30, and the filter element 40 is engaged at the filter element 40. When a partition 33 and the second partition 34 are disposed, the end surface of the filter element 40 abuts against the support rib 35 on the support plate 32, that is, the support rib 35 on the support plate 32 is embedded in the end surface of the filter element 40, and the filter element can be reinforced. The sealing property of the 40 end surface and the support plate 32 avoids the phenomenon of water leakage due to the gap between the support plate 32 and the end surface of the filter element 40, and the mechanical cooperation of the support rib 35 on the support plate 32 and the end surface of the filter element 40 is adopted. It is not necessary to seal the filter element assembly 100 by means of hot melt adhesive or 704 silica gel, which not only improves the production efficiency, but also achieves the effect of “free of glue” and eliminates the sanitary safety brought by hot melt adhesive and 704 silica gel. Hidden dangers improve the sealing performance of the filter element assembly 100 and provide a good experience for the user. The filter element assembly 100 has the advantages of simple structure, good sealing performance, high production efficiency, good health and safety, and good user experience.

Referring to FIG. 3 and FIG. 4, it is to be noted that the joint 20 is provided with a main body portion 21, a joint connecting portion 22 and a water dividing column 23, and the joint connecting portion 22 is provided at the upper end of the main body portion 21 and connected to the filter casing 10, and the water dividing column 23 is connected to the main body portion 21 and at least partially spaced apart from the inner wall surface of the main body portion 21, and the joint 20 is provided with a water inlet and a water outlet communicating with the filter chamber 10a, wherein the outer wall surface of the water dividing column 23 and the main body portion 21 The inner wall faces are spaced apart so as to define a water inlet passage that is electrically connected to the water inlet between the outer wall surface of the water dividing column 23 and the inner wall surface of the main body portion 21.

Optionally, the water inlet is provided on both sides of the joint 20.

Specifically, as shown in FIG. 1, the water supply port is respectively disposed on both sides of the joint 20, and the water flow enters the filter chamber 10a from the water inlets on both sides of the joint 20, and is filtered by the filter core 40, and then flows along the center tube 50. Finally, the water outlet that communicates with the central pipe 50 is reached and the filter element assembly 100 is discharged. Water is introduced through the water inlets on both sides of the joint 20. For the same flow of water, the water can be filtered through both sides of the filter element 40 to ensure a more filtering process. Uniform and sufficient, the filtered water is cleaner and the filtration efficiency of the filter assembly 100 is increased.

Preferably, the support ribs 35 are formed in an annular shape extending in the circumferential direction of the filter housing 10, that is, the support ribs 35 are provided on one side surface of the support plate 32 and form annular ribs extending in the circumferential direction of the filter housing 10, the first partition The plate 33 and the second partition 34 respectively form an annular partition extending in the circumferential direction of the filter casing 10, and the annular support rib 35 is located between the first partition 33 and the second partition 34.

Advantageously, the annular support ribs 35 respectively coincide with the central axis of the ring formed by the first partition 33 and the second partition 34. When the filter element 40 is inserted into the filter housing 10, the annular support ribs 35 on the support plate 32 are along The circumferential direction of the filter housing 10 is embedded in the end surface of the filter element 40, and the sealing property of the support plate 32 and the filter element 40 is ensured in the circumferential direction of the filter housing 10, and the filter housing 10 is secured. There is no water in any part of the week.

In some embodiments of the invention, the support ribs 35 are one piece.

Referring to FIGS. 1 and 2, a support rib 35 is disposed between the first partition 33 and the second partition 34 on the support plate 32. For example, a ring is arranged between the first partition 33 and the second partition 34. The support rib 35 has a simple structure and ensures the sealing performance of the filter element 40 and the support plate 32 in the circumferential direction.

As shown in FIG. 2, the first partition plate 33 is disposed coaxially with the second partition plate 34 and the first partition plate 33 is located at the outer periphery of the second partition plate 34, and the cross section of the filter element 40 is formed in a ring shape.

That is, the first partition plate 33 coincides with the central axis of the second partition plate 34, and the first partition plate 33 is located outside the second partition plate 34 in the radial direction of the filter housing 10, and the cross section of the filter element 40 is annular. The arrangement, that is, the filter element 40 is formed along the circumferential direction of the filter housing 10 as an annular cylinder extending in the vertical direction, and the outer side wall of the filter element 40 is located inside the first partition plate 33, and the inner side wall of the filter element 40 is located at the second partition plate 34. The outer side of the filter element 40 can be inserted between the first partition plate 33 and the second partition plate 34, and the inlet water path and the outlet water path can be separated at the end of the filter element 40, and enter the filter chamber 10a. The water passes through the filter core 40 from the outside to the inside along the radial direction of the filter casing 10, thereby filtering the water to filter impurities in the water.

Advantageously, the inner wall surface of the filter element 40 is in an interference fit with the outer wall surface of the second diaphragm 34, i.e., the radial dimension of the inner wall of the filter element 40 is smaller than the radial dimension of the outer wall of the second diaphragm 34, through the inner wall surface of the filter element 40 and The outer wall surface of the second baffle 34 has an interference fit, and the structure of the filter element 40 and the second baffle 34 is simple, the process is convenient, and the inner wall surface of the filter element 40 and the outer wall surface of the second baffle 34 are effectively ensured. The sealing property between the filter element 40 and the second partition plate 34 is prevented to prevent water from colliding.

Preferably, the outer wall surface of the filter element 40 has an interference fit with the inner wall surface of the first partition plate 33, that is, the radial dimension of the outer wall of the filter element 40 is larger than the radial dimension of the inner wall of the first partition plate 33, and the outer wall surface of the filter element 40 passes through The inner wall surface of the first partition plate 33 has an interference fit, and the structure of the filter element 40 and the first partition plate 33 is simple, the processing is convenient, and the outer wall surface of the filter element 40 and the inner wall surface of the first partition plate 33 are effectively ensured. The sealing property between the filter element 40 and the first partition plate 33 is prevented to prevent the occurrence of water leakage.

The axial height of the first partition plate 33 is smaller than the axial height of the second partition plate 34. Specifically, as shown in FIGS. 1 and 2, the height of the second partition plate 34 in the axial direction of the filter element 40 is greater than the height of the first partition plate 33 in the axial direction of the filter element 40, so that not only the second partition can be enlarged. The interference fit between the plate 34 and the inner wall surface of the filter element 40 ensures an effective sealing between the outer wall of the second partition 34 and the inner wall of the filter element 40, and is also advantageous for the filter element 40 to be firmly engaged in the cover 30. To ensure the stability of the structure, the connection is very reliable.

Preferably, the cover 30 is an integrally formed piece, whereby the integrally formed structure not only ensures the structure and performance stability of the filter element assembly 100, but also facilitates molding and manufacturing, and eliminates redundant fittings and connection processes. The assembly efficiency of the filter element assembly 100 is greatly improved, the connection reliability of the filter element assembly 100 is ensured, and, in addition, the integrally formed junction The overall strength and stability of the structure are higher, the assembly is more convenient, and the life is longer.

The filter element assembly 100 of the embodiment of the present invention will be described below in conjunction with specific embodiments.

As shown in FIGS. 1 to 5, a filter cartridge assembly 100 according to an embodiment of the present invention includes a filter housing 10, a joint 20, a cover 30, a filter cartridge 40, and a center tube 50, wherein the cover 30 includes a joint tube 31 and a support plate 32. The first partition 33, the second partition 34 and the support ribs 35.

Specifically, the filter housing 10 defines a filter chamber 10a, and the joint 20 is located at one end of the filter housing 10 (such as the lower end of the filter housing 10 shown in FIG. 1) and is connected to the filter housing 10, and is respectively disposed on both sides of the joint 20. There is a water inlet, the cover 30, the filter element 40 and the central tube 50 are respectively located in the filter chamber 10a, the cover 30 is disposed at the upper end of the joint 20, the joint tube 31 of the cover 30 is inserted into the joint 20, and the support of the cover 30 The plate 32 extends outward in the radial direction of the filter housing 10, and the first partition plate 33 and the second partition plate 34 are respectively disposed annularly along the circumferential direction of the filter housing 10, and the first partition plate 33 and the second partition plate 34 are The support plates 32 are radially spaced apart, and the first partition 33 is located outside the second partitions 34.

Further, a support rib 35 is further disposed between the first partition plate 33 and the second partition plate 34 on the support plate 32. The support rib 35 extends along the circumferential direction of the filter housing 10 to form an annular rib, and the first partition plate 33, The second baffle 34 and the support rib 35 are coaxially disposed. When the filter element 40 is snapped into the cover 30, the lower end surface of the filter element 40 is in contact with the upper end surface of the support plate 32, and the support rib 35 is embedded in the lower end surface of the filter element 40. The first baffle 33 and the second baffle 34 respectively have an interference fit with the filter element 40. Further, the filter element 40 extends in a vertical direction to form a columnar shape, and the filter element 40 is formed in a ring shape along the circumferential direction of the filter case 10, and the center tube 50 is located at the center of the filter case 10 and extends along the axial direction of the filter case 10 and It is in communication with the water outlet of the joint 20.

A water purifier (not shown) according to an embodiment of the second aspect of the present invention includes the cartridge assembly 100 of the above embodiment, and since the cartridge assembly 100 according to the above embodiment of the present invention has the above-described technical effects, according to an embodiment of the present invention, The water purifier also has the corresponding technical effect, that is, the water purifier has a simple structure, good sealing performance, high production efficiency, good health and safety, and good user experience.

Specifically, the filter element assembly 100 of the water purifier adopts a mechanical cooperation manner of the support rib 35 on the support plate 32 and the end surface of the filter element 40, so that the filter element assembly 100 is not sealed by hot melt adhesive or 704 silica gel. The effect of “free-wearing” is achieved, and the sanitary safety hazard caused by hot-melt adhesive and 704 silica gel is eliminated, and the sealing property of the end face of the filter element 40 and the support plate 32 can be enhanced to avoid the end face of the support plate 32 and the filter element 40. There is a gap between them to cause water shattering, high production efficiency, improved sealing performance of the filter element assembly 100, and a good experience for the user, thereby improving the quality of the water purifier and improving the user experience.

Other configurations and operations of the cartridge assembly 100 and the water purifier having the same according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " After, "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship of the indications "radial", "circumferential", etc. is based on the drawing The orientation or the positional relationship is merely for the purpose of describing the present invention and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore is not to be construed as limiting the invention. .

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims (10)

A filter cartridge assembly, comprising: a filter housing, wherein the filter housing defines a filter chamber; a joint, the joint is disposed on the filter housing, and the joint is provided with a water inlet and a water outlet communicating with the filter chamber; a cover, the cover is disposed on the joint and located in the filter cavity, and the cover comprises: a joint pipe formed as a tubular shape extending in an axial direction of the filter casing, the outer end of the joint pipe being connected to the joint; a support plate disposed outside the inner end of the joint tube and extending outward in a radial direction of the filter housing; a first partition and a second partition, wherein the first partition and the second partition are respectively disposed on the support plate and extend toward the filter housing, the first partition and the partition The second partitions are respectively formed into annular shapes extending along the circumferential direction of the filter housing; a support rib, the support rib is disposed on the support plate and located between the first partition and the second partition; a filter element, the filter element is disposed in the filter chamber and is caught between the first partition plate and the second partition plate, and one end of the filter element abuts against the support rib; a central tube that is inserted into the joint tube and communicates with the water outlet. The cartridge assembly of claim 1 wherein said water inlet is provided on either side of said joint. The filter element assembly according to claim 3, wherein the support rib is formed in a ring shape extending in a circumferential direction of the filter case. The cartridge assembly of claim 1 wherein said support ribs are one piece. The cartridge assembly of claim 1 wherein said first baffle is disposed coaxially with said second baffle and said first baffle is located at an outer periphery of said second baffle, said filter element The cross section is formed in a ring shape. The cartridge assembly of claim 5 wherein the inner wall surface of the filter element is in an interference fit with the outer wall surface of the second diaphragm. The cartridge assembly of claim 5 wherein the outer wall surface of the filter element is in an interference fit with the inner wall surface of the first diaphragm. The filter cartridge assembly of claim 5 wherein said first baffle has an axial height that is less than an axial height of said second baffle. The filter cartridge assembly of claim 1 wherein said closure is an integrally formed piece. A water purifier comprising the filter cartridge assembly of any of claims 1-9.

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