CN218669630U

CN218669630U - Filter element of filter

Info

Publication number: CN218669630U
Application number: CN202320001809.0U
Authority: CN
Inventors: 程建彬; 陈旭; 张宇; 应晓渭; 邓青林
Original assignee: Zhejiang Weitai Automobile Parts Co ltd
Current assignee: Zhejiang Weitai Automobile Parts Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-03-21
Anticipated expiration: 2033-01-03

Abstract

The utility model discloses a filter element relates to filter subassembly technical field, including stay tube, water oil separating medium, locate stay tube outlying filter layer, locate upper end cover and the bottom end cover at stay tube both ends respectively, stay tube and water oil separating medium integrated into one piece, the radial direction of stay tube is provided with two sets of water conservancy diversion floor with the slope of stay tube axial direction, forms the water conservancy diversion passageway. The oil-water separation medium and the supporting tube are integrally injection molded, so that the manufacturing process is simplified, the production efficiency is improved, and the production cost is reduced; when the oil-water separation medium and the supporting pipe are integrally formed, the separated water can be conveniently settled, the fuel oil flow channel is smooth, and the oil-water separation performance of the product is improved; meanwhile, the oil-water separation medium and the supporting pipe are integrally formed, and the guide rib plates on the outer side of the supporting pipe protect the oil-water separation medium, so that the oil-water separation medium is prevented from being contacted and rubbed with the outside, the rejection rate is reduced, and the oil-water separation performance of a product is improved.

Description

Filter element of filter

Technical Field

The utility model relates to a filter subassembly technical field specifically is a filter element.

Background

The filter and the filter element are widely applied to the field of fuel oil filtration of internal combustion engines, and in order to ensure the oil inlet quality of a fuel oil supply system of the internal combustion engine, a multi-stage filter or a multi-stage filtration integrated filter element is generally required to be adopted for filtering impurities and moisture in the fuel oil. In the prior art, a central supporting pipe for improving the strength of a filter element and a water separation pipe for separating water in fuel oil are arranged in a general multi-stage filtration integrated filter element, the central supporting pipe and the water separation pipe adopt split structures and are assembled after being produced and processed respectively, the manufacturing process is complex, the production efficiency is low, and the production cost is high; when the supporting pipe and the water separation pipe are in a split structure, due to the limitation of space, the wall thicknesses of the water separation pipe and the supporting pipe are designed to be relatively thin, the structural strength of a product is poor, and meanwhile, the water separation pipe and the supporting pipe both have certain wall thicknesses, so that a sedimentation channel is relatively narrow, the sedimentation of separated water is influenced, and the oil-water separation performance of the product is reduced; the oil-water separation medium arranged on the water separation pipe is easy to rub, deform and damage in the production, processing and use processes due to the thin pipe wall of the water separation pipe, so that the high rejection rate is caused, and the oil-water separation performance of the product is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problems in the prior art, the utility model provides a filter element of a filter, which simplifies the manufacturing process, improves the production efficiency and reduces the production cost by integrally injection molding an oil-water separation medium and a supporting tube; when the oil-water separation medium and the supporting pipe are integrally formed, the guide rib plate arranged in the guide channel is relatively thick in the radial direction, so that the filter core can bear larger radial fuel pressure, the strength of the filter core is improved, the wider guide channel is kept, the separated water is convenient to settle, the fuel flow channel is smooth, and the oil-water separation performance of a product is improved; meanwhile, the oil-water separation medium and the supporting pipe are integrally formed and are located on the inner wall of the supporting pipe, and the flow guide rib plates on the outer side of the supporting pipe protect the oil-water separation medium, so that the oil-water separation medium is prevented from being rubbed and bumped by external contact, the rejection rate is reduced, and the oil-water separation performance of a product is improved.

In order to achieve the above purpose, the utility model discloses a realize through following technical scheme:

a filter element of a filter comprises a supporting tube, an oil-water separation medium, a filtering layer arranged on the periphery of the supporting tube, an upper end cover and a lower end cover which are respectively arranged at two ends of the supporting tube, wherein the supporting tube and the oil-water separation medium are integrally formed, and two groups of flow guide rib plates inclined with the axial direction of the supporting tube are arranged in the radial direction of the supporting tube to form a flow guide channel.

Preferably, the oil-water separation medium is embedded at the upper part of the inner pipe wall of the supporting pipe and is integrally injection-molded with the supporting pipe.

Preferably, the two groups of flow guide rib plates are in 180-degree rotational symmetry around the axis of the support pipe to form a spiral-like flow guide groove.

Preferably, the angle of inclination of the air guide ribs with respect to the axial direction of the support tube is in the range of 30 to 60 degrees.

Preferably, the angle of inclination of the air guide ribs with respect to the axial direction of the support tube is 40 degrees, 45 degrees or 50 degrees.

Preferably, the central opening of the upper end cover is provided with an elastic sealing element.

Preferably, an elastic sealing ring is arranged on the outer circumference of the lower end cover.

Preferably, an elastic seal ring is provided on an outer peripheral side of the elastic seal ring.

Preferably, the elastic sealing ring has a ratio of the height to the width ranging from 1 to 4 or 1/4 to 1.

Preferably, two ends of the filter layer are respectively connected with the upper end cover and the lower end cover, and the support tube and the filter layer are connected with the upper end cover and the lower end cover in a hot melting welding mode.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the oil-water separation medium and the supporting tube are integrally injection molded, so that the manufacturing process is simplified, the production efficiency is improved, and the production cost is reduced;

when the oil-water separation medium and the supporting pipe are integrally formed, the guide rib plate arranged in the guide channel is relatively thick in the radial direction, so that the filter core can bear larger radial fuel pressure, the strength of the filter core is improved, the wider guide channel is kept, the separated water is convenient to settle, the fuel flow channel is smooth, and the oil-water separation performance of a product is improved;

meanwhile, the oil-water separation medium and the supporting pipe are integrally formed and are located on the inner wall of the supporting pipe, and the flow guide rib plates on the outer side of the supporting pipe protect the oil-water separation medium, so that the oil-water separation medium is prevented from being rubbed and bumped by external contact, the rejection rate is reduced, and the oil-water separation performance of a product is improved.

Drawings

Fig. 1 is a schematic overall cross-sectional view of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a supporting tube according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a support tube according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a seal ring and a lower end cap according to an embodiment of the present invention;

fig. 5 is a schematic half-sectional view of a seal ring and a lower end cap according to another embodiment of the present invention;

fig. 6 is a schematic structural view of a seal ring and a lower end cap according to another embodiment of the present invention;

fig. 7 is a schematic view of a filter element of an embodiment of the present invention in an operating state.

In the figure: 1. supporting a tube; 11. a flow guide rib plate; 2. an oil-water separation medium; 3. a filter layer; 31. a particulate filter media; 32. a water-collecting medium; 4. an upper end cover; 41. an elastomeric seal; 5. a lower end cover; 51. an elastic sealing ring; 511. the ring height; 512. the ring width is increased; 52. an elastic sealing ring; 6. a filter housing; 61. an oil inlet; 62. a clean oil outlet; 63. a water accumulation cavity; 64. and a water outlet.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Please refer to fig. 1-4, which is an embodiment of the filter element of the present invention, in this embodiment, the filter element includes a support tube 1, an oil-water separation medium 2, a filter layer 3, an upper end cap 4 and a lower end cap 5, the support tube 1 and the oil-water separation medium 2 are integrally formed, two sets of flow guide rib plates 11 inclined with the axial direction of the support tube 1 are arranged in the radial direction of the support tube 1 to form a flow guide channel, so as to reduce the resistance to the fuel flow. The filter layer 3 is arranged on the periphery of the support tube 1, and the upper end cover 4 and the lower end cover 5 are respectively arranged at two ends of the support tube 1. The filter layer 3 may include only the particulate filter medium 31 for filtering particulate impurities, only the water accumulation medium 32 for adsorbing and coalescing small water droplets in the fuel into large water droplets, or both the particulate filter medium 31 and the water accumulation medium 32.

In this embodiment, the oil-water separation medium 2 is embedded in the upper portion of the inner wall of the support tube 1, and is integrally injection-molded with the support tube 1. The bottom of the oil-water separation medium 2 is hermetically connected with an end face. And when the oil-water separation medium 2 and the support tube 1 are integrally formed, because the wall thickness of a water separation tube in a filter element of a filter in the prior art is cancelled, the limitation of space is small, the guide rib plate 11 arranged in the guide channel is relatively thick in the radial direction, and can bear larger radial fuel pressure, the strength of the filter element is improved, and meanwhile, the wider guide channel is kept, so that the separated water is settled and the fuel flow channel is smooth.

In this embodiment, the two sets of flow guide rib plates 11 are rotationally symmetric around the axis of the support tube 1 by 180 degrees to form a spiral-like flow guide groove. The guide groove can reduce the resistance to the flow of the fuel.

In the present embodiment, the guide ribs 11 are inclined at an angle ranging from 30 degrees to 60 degrees with respect to the axial direction of the support pipe 1. When the inclination angle range of the guide rib plate 11 relative to the axial direction of the support tube 1 is less than 30 degrees, the filter layer 3 is easily clamped in the guide rib plate 11; when the inclination angle range of the guide rib plate 11 relative to the axial direction of the support tube 1 is larger than 60 degrees, the sedimentation of water is influenced, and the guide effect is poor.

In the present embodiment, the guide ribs 11 are inclined at an angle of 40 degrees, 45 degrees, or 50 degrees with respect to the axial direction of the support tube 1. The air guide effect is best when the angle of inclination of the air guide rib 11 with respect to the axial direction of the support tube 1 is 40 degrees, 45 degrees or 50 degrees.

In this embodiment, an elastic sealing member 41 is disposed at the central opening of the upper end cap 4. The elastic sealing member 41 is used for mounting and connecting the filter element and the filter case, and can improve the sealing effect between the filter element and the filter case.

As shown in fig. 4, 5, and 6, an elastic seal ring 51 is provided on the outer circumference of the lower end cap 5, and an elastic seal ring 52 is provided on the outer circumferential side of the elastic seal ring 51. The elastic seal ring 52 may be provided at the outer peripheral end of the elastic seal ring 51, or may be provided at the outer peripheral middle portion of the elastic seal ring 51. The elastic sealing ring 52 has large installation elasticity, the filter element can be easily installed and self-sealing is realized, and the larger the pressure is, the better the sealing effect is. Simultaneously after the filter core uses, because the mud dirt that is intercepted in the fuel in the use deposits here, lead to originally adopting O type circle seal structure's filter core can not quick detachable come out, adopt elastic sealing ring 52 can prevent this problem, solved the problem of adopting O type circle seal structure's filter core installation dismantlement difficulty, improved the convenience and the sealing performance of maintaining.

In the present embodiment, the ratio of the ring height 511 to the ring width 512 of the elastic sealing ring 51 ranges from 1 to 4 or from 1/4 to 1. The size ratio range is set, so that the elastic sealing element can be effectively prevented from falling off in the process of assembling and disassembling the filter element, and the consumption of elastic materials can be reduced to the maximum extent.

In this embodiment, two ends of the filter layer 3 are respectively connected to the upper end cap 4 and the lower end cap 5, and the support tube 1, the filter layer 3, the upper end cap 4 and the lower end cap 5 are all welded by heat fusion. The hot-melt welding is preferable for connection, and the production efficiency of products can be improved.

It is worth mentioning that the filter element of the utility model is arranged in a filter shell 6 when working. As shown in fig. 7, an oil inlet 61 is formed in a side wall of the filter housing 6, a cleaning oil outlet 62 is formed in a top of the filter housing 6, a water collecting chamber 63 is formed at a bottom of the filter housing 6, and a water outlet 64 communicated with the water collecting chamber 63 is formed at a bottom end of the filter housing 6.

The fuel oil to be filtered enters the filter from the oil inlet 61, and is sequentially filtered by the particle filtering medium 31 to filter particulate impurities, meanwhile, small water drops in the fuel oil are adsorbed and coalesced by the water-collecting medium 32 to form large water drops which reach the flow guide rib plate 11 of the flow guide channel, the fuel oil passes through the oil-water separation medium 2 and reaches the oil outlet of the upper end cover 4 through the flow guide channel, and the large water drops are blocked in the flow guide channel by the large water drops, and because of different specific gravity of the water and the fuel oil, the large water drops settle in the flow guide rib plate 11 of the flow guide channel to enter the water collecting cavity 63 and are discharged from the water outlet 64, so that the processes of filtering and removing the particulate impurities of the fuel oil are completed.

The oil-water separation medium 2 and the support tube 1 are integrally injection molded, so that the manufacturing process is simplified; when the oil-water separation medium 2 and the support tube 1 are integrally formed, the guide rib plate 11 arranged in the guide channel is relatively thick in the radial direction, so that the filter can bear large radial fuel pressure, the strength of the filter element is improved, and the wide guide channel is kept, so that the separated water can be conveniently settled and the fuel flow channel is smooth; meanwhile, the oil-water separation medium 2 and the support pipe 1 are integrally formed and are located on the inner wall of the support pipe 1, and the guide rib plates 11 on the outer side of the support pipe 1 protect the oil-water separation medium to prevent the oil-water separation medium 2 from being contacted with the outside and rubbed.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a filter element, includes stay tube (1), water oil separating medium (2), locates stay tube (1) outlying filter layer (3), locates upper end cover (4) and lower end cover (5) at stay tube (1) both ends respectively, its characterized in that: the supporting tube (1) and the oil-water separation medium (2) are integrally formed, and two groups of flow guide rib plates (11) inclined to the axial direction of the supporting tube (1) are arranged in the radial direction of the supporting tube (1) to form a flow guide channel.

2. The filter cartridge of claim 1, wherein: the oil-water separation medium (2) is embedded on the upper part of the inner pipe wall of the supporting pipe (1) and is integrally injection-molded with the supporting pipe (1).

3. The filter element of claim 1, wherein: the two groups of flow guide rib plates (11) are rotationally symmetrical around the axis of the supporting tube (1) by 180 degrees to form a spiral-like flow guide groove.

4. The filter cartridge of claim 1, wherein: the angle of inclination of the flow guide rib plates (11) relative to the axial direction of the support pipe (1) ranges from 30 degrees to 60 degrees.

5. The filter cartridge of claim 1, wherein: the angle of inclination of the air guide rib plates (11) relative to the axial direction of the support pipe (1) is 40 degrees, 45 degrees or 50 degrees.

6. The filter cartridge of claim 1, wherein: an elastic sealing element (41) is arranged at the central opening of the upper end cover (4).

7. The filter cartridge of claim 1, wherein: an elastic sealing ring (51) is arranged on the outer circumference of the lower end cover (5).

8. The filter element of claim 7, wherein: an elastic sealing ring (52) is arranged on the outer periphery of the elastic sealing ring (51).

9. The filter cartridge of claim 7, wherein: the ratio of the height (511) to the width (512) of the elastic sealing ring (51) ranges from 1 to 4 or from 1/4 to 1.

10. The filter cartridge of claim 1, wherein: two ends of the filter layer (3) are respectively connected with the upper end cover (4) and the lower end cover (5), and the connection modes of the support tube (1), the filter layer (3), the upper end cover (4) and the lower end cover (5) are all hot melting welding.