Filter element of filter

Abstract

The utility model discloses a filter element, and relates to the technical field of filtering devices, the filter element comprises an upper plate, a lower plate, and a filter paper layer arranged between the edge of the upper plate and the edge of the lower plate, a gas storage cavity is formed between the upper plate and the lower plate, one end of the gas storage cavity is provided with a gas outlet end, and a supporting piece is arranged between the upper plate and the lower plate. One end of the supporting piece is connected with the upper plate, and the other end of the supporting piece is connected with the lower plate. The problem that the connection stability between the upper end cover and the lower end cover depends on the filter paper, so that the filter paper at the U-shaped bent bottom end is easy to deform under the continuous impact of airflow, and the filtering effect of the filter element of the filter is influenced is solved.

Description

Technical Field

[0001] This application relates to the field of filtration device technology, and in particular to a filter element. Background Technology

[0002] Currently, filter devices used for gaseous media filtration play a crucial role in the air purification system of internal combustion engines. The filter element removes dust, particulate matter, moisture, and other contaminants from the air, ensuring gas cleanliness, thereby reducing wear and tear on equipment, lowering failure rates, and extending equipment lifespan.

[0003] A related patent, CN114471012A, discloses a filter element comprising a filter medium and a filter substrate. The filter substrate has sealing end caps on both end faces, each end cap configured to close, at least after assembly, to seal a cleaning chamber on its respective end face. The filter substrate has an air outlet communicating with the cleaning chamber, and the air outlet is positioned opposite the U-shaped opening end of the filter medium. At least one air inlet is formed between the sidewalls of the two end caps on the side avoiding the air outlet, and the air inlet is annularly positioned on the U-shaped side end of the filter medium exposing its body, and is separated from the air outlet. The space formed by the filter medium and filter substrate is divided into an external air chamber and an internal cleaning chamber, resulting in a more efficient filtration method. The filter medium can more uniformly contact and react with the dispersed raw gas, filtering the raw gas entering the filter medium into clean gas, with particularly significant effects.

[0004] In using the aforementioned related technologies, it was found that the connection stability between the upper and lower end caps in the prior art depends on the filter paper. The folding density of the filter paper gradually decreases from the U-shaped side end to the bottom of the bend. Under the continuous impact of the airflow from the outside to the inside, the filter paper at the bottom of the U-shaped bend becomes heavily loaded and easily deformed, which leads to a decrease in the connection stability between the upper and lower end caps and affects the filtration effect of the filter element. Utility Model Content

[0005] To address the problem that the connection stability between the upper and lower end caps depends on the filter paper, which leads to the filter paper at the bottom of the U-shaped bend being easily deformed under the continuous impact of airflow, thus affecting the filtration effect of the filter element, this application provides a filter element.

[0006] The filter element provided in this application adopts the following technical solution:

[0007] A filter element includes an upper plate, a lower plate, and a filter paper layer disposed between the edges of the upper plate and the lower plate. An air storage cavity is formed between the upper plate and the lower plate, and an air outlet is provided at one end of the air storage cavity. A plurality of support members are disposed between the upper plate and the lower plate, with one end of each support member connected to the upper plate and the other end of each support member connected to the lower plate.

[0008] By adopting the above technical solution, when the gas containing impurities flows continuously along the axial direction of the filter element, the gas enters the filter element from the end away from the outlet end. It is first filtered by the filter paper layer, at which point the gas containing impurities is filtered into clean gas. The clean gas then flows axially through the gas storage chamber, and finally the clean gas flows out from the outlet opening. The installation of several support components can enhance the connection stability between the upper plate and the lower plate, thereby improving the filtration effect of the filter element.

[0009] Optionally, the support member is disposed at the end of the gas storage cavity away from the gas outlet end. The support member is arranged in a triangular column shape and is hollow inside. The support member divides the filter paper layer into three segments, and the filter paper layer is bonded and fixed to the support member.

[0010] By adopting the above technical solution, the triangular columnar design of the support component enables it to have high structural stability and provide good support.

[0011] Optionally, both the inner walls of the upper plate and the lower plate are provided with protrusions, which are triangular columnar in shape. Both ends of the support member are open, with one of the protrusions inserted into the opening at one end of the support member and the other protrusion inserted into the opening at the other end of the support member.

[0012] By adopting the above technical solution, the protrusion block can stably fix the support between the upper and lower plates, improve the connection stability of the support, and also achieve precise positioning between the support and the protrusion block, thereby enabling rapid installation.

[0013] Optionally, a number of anti-slip grooves are provided on the outer side of both the upper plate and the outer side of the lower plate.

[0014] By adopting the above technical solution, the anti-slip groove can increase the friction of the contact surface, making it easier to pick up the filter element. At the same time, it can keep the filter element stable when gripping it during production and installation, preventing the filter element from slipping out of the hand.

[0015] Optionally, a positioning hole is provided on the upper plate, the positioning hole extends from the upper plate to the lower plate, and a first sealing ring is fixedly installed on the outside of the positioning hole.

[0016] By adopting the above technical solution, the component used to fix the filter element on the filter housing is inserted into the positioning hole. At this time, the filter element is fixed on the filter housing. The first sealing ring can ensure that the connection between the filter element and the filter housing is sealed.

[0017] Optionally, a sealing plate is integrally formed on the outer side of the air outlet, one end of the sealing plate is snapped onto the upper plate, and the other end of the sealing plate is snapped onto the lower plate.

[0018] By adopting the above technical solution, the snap-fit ​​design of the sealing plate enables the air outlet to be precisely aligned and installed, increasing the ease of installation. At the same time, the one-piece molding design also enables the air outlet to be stably fixed between the upper and lower plates, ensuring the airtightness of the air outlet connection.

[0019] Optionally, a second sealing ring is provided on the outer side of the air outlet end, the outer surface of the second sealing ring is threaded, and the second sealing ring is threadedly connected to the outer wall of the air outlet end.

[0020] By adopting the above technical solution, the second sealing ring provides better sealing at the connection between the air outlet and the internal components of the filter, improving the filtration effect of the filter element. Furthermore, the threaded connection also enhances the connection strength between the second sealing ring and the air outlet, allowing the second sealing ring to be stably fixed on the outer wall of the air outlet.

[0021] Optionally, a removable dust cap is provided at the opening of the air outlet.

[0022] By adopting the above technical solution, the dust cap prevents dust and other pollutants from entering the air storage chamber when the filter element is not in use, thereby keeping the air storage chamber of the filter element clean.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When gas containing impurities flows continuously along the axial direction of the filter element, the gas enters the filter element from the end furthest from the outlet end. It is first filtered by the filter paper layer, at which point the gas containing impurities is filtered into clean gas. The clean gas then flows axially through the gas storage chamber, and finally flows out from the outlet end opening. Several support components are provided to enhance the connection stability between the upper and lower plates, thereby improving the filtration effect of the filter element.

[0025] 2. The protruding blocks allow the support to be stably fixed between the upper and lower plates, improving the connection stability of the support and enabling precise positioning between the support and the protruding blocks, thus facilitating rapid installation.

[0026] 3. The dust cap prevents dust and other contaminants from entering the air chamber when the filter element is not in use, thus keeping the air chamber of the filter element clean. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the filter element in an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the internal structure of the filter element in an embodiment of this application.

[0030] Figure 3 This is a schematic diagram of the structure of the support member and the protrusion in the embodiment of this application.

[0031] Figure 4 This is a schematic diagram of the air outlet end in an embodiment of this application.

[0032] Reference numerals: 1. Upper plate; 2. Lower plate; 3. Filter paper layer; 4. Air storage chamber; 5. Air outlet; 6. Support component; 7. Protrusion; 8. Anti-slip groove; 9. Positioning hole; 10. First sealing ring; 11. Sealing plate; 12. Second sealing ring; 13. Dust cap; 14. Groove; 15. Slot. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses a filter element.

[0035] Reference Figure 1 The filter element includes an upper plate 1, a lower plate 2, and a filter paper layer 3. Both the upper plate 1 and lower plate 2 are U-shaped, and the filter paper layer 3 is positioned between the edges of the upper plate 1 and the lower plate 2. The filter paper layer 3 is folded, which increases its filtration area and improves filtration efficiency.

[0036] Reference Figure 1 An air storage chamber 4 is formed between the upper plate 1 and the lower plate 2. The air storage chamber 4 is kept clean and is U-shaped. An air outlet 5 is provided at one end of the air storage chamber 4. The gas containing impurities is first filtered through the filter paper layer 3. At this time, the gas is filtered into clean gas. The clean gas then flows axially through the air storage chamber 4 and finally flows out from the opening of the air outlet 5.

[0037] Reference Figure 1 and Figure 2 To prevent the connection stability between the upper plate 1 and the lower plate 2 of the filter element from depending on the filter paper layer 3, which could lead to an overloaded and easily deformed filter paper layer 3, thus affecting the filtration effect, two support members 6 are provided between the upper plate 1 and the lower plate 2 in this embodiment. The support members 6 are hollow inside and open at both ends, and are triangular columnar in shape. This provides high structural stability and allows them to support the filter element. The two support members 6 divide the filter paper layer 3 into three segments, and the filter paper layer 3 is bonded and fixed to the support members 6.

[0038] Reference Figure 1 and Figure 3 Two protrusions 7 are provided on the inner walls of both the upper plate 1 and the lower plate 2. Each protrusion 7 is located at the end furthest from the air outlet 5 and is arranged in a triangular column shape. The protrusions 7 are inserted into and connected to the support members 6. The two protrusions 7 on the upper plate 1 are respectively inserted into the ends of the two support members 6 closest to the upper plate 1, and the two protrusions 7 on the lower plate 2 are respectively inserted into the ends of the two support members 6 closest to the lower plate 2. This securely fixes the support members 6 between the upper plate 1 and the lower plate 2, improving the connection stability of the support members 6.

[0039] Reference Figure 1 and Figure 2 To increase the friction of the contact surfaces, facilitate the handling of the filter element, and ensure a stable grip during production and installation to prevent it from slipping out of the hand, this embodiment features several anti-slip grooves 8 on the outer sides of both the upper plate 1 and the lower plate 2. A positioning hole 9 is provided on the outer wall of the upper plate 1, extending vertically from the upper plate 1 to the lower plate 2. By inserting the component on the filter housing used to fix the filter element into the positioning hole 9, the filter element is fixed to the filter housing. To ensure a sealed connection between the filter element and the filter housing, two first sealing rings 10 are fixedly installed on the outer side of the positioning hole 9; one is square, and the other is O-shaped.

[0040] Reference Figure 1 and Figure 4 Directly installing the air outlet 5 onto the filter paper layer 3 will not only affect the sealing performance of the filter element, but also make it difficult to maintain the installation stability of the air outlet 5. Therefore, in this embodiment, the outer side of the air outlet 5 is integrally formed with a sealing plate 11. The sealing plate 11 is square and has four grooves 14. The upper plate 1 and the lower plate 2 are respectively equipped with slots 15. The grooves 14 on the sealing plate 11 are engaged with the slots 15, thereby fixing the air outlet 5 between the upper plate 1 and the lower plate 2.

[0041] Reference Figure 1 and Figure 4 A dust cap 13 is installed at the opening of the air outlet 5. The dust cap 13 is detachable. When the filter element is not in use, the dust cap 13 can prevent dust and other contaminants from entering the air storage chamber 4, thereby keeping the air storage chamber 4 clean. Because the air outlet 5 is connected to the internal components of the filter, a second sealing ring 12 is fitted on the outside of the air outlet 5. The second sealing ring 12 provides better sealing at the connection between the air outlet 5 and the filter component, improving the filtration effect of the filter element. The outer surface of the second sealing ring 12 is threaded. The second sealing ring 12 is threaded onto the outer wall of the air outlet 5. The threaded connection also improves the connection strength between the second sealing ring 12 and the air outlet 5, ensuring the airtightness of the air outlet 5.

[0042] The implementation principle of a filter element in this application embodiment is as follows: when gas containing impurities is filtered through the filter element, the gas enters the filter element from the end away from the outlet end 5. The gas containing impurities is first filtered through the filter paper layer 3. At this time, the gas containing impurities is filtered into clean gas. Then, the clean gas flows axially through the gas storage chamber 4 towards the end closer to the outlet end 5. Finally, the clean gas flows out from the opening of the outlet end 5.

[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A filter element, comprising an upper plate (1), a lower plate (2), and a filter paper layer (3) disposed between the edges of the upper plate (1) and the lower plate (2), wherein an air storage cavity (4) is formed between the upper plate (1) and the lower plate (2), and an air outlet (5) is provided at one end of the air storage cavity (4), characterized in that: A plurality of support members (6) are provided between the upper plate (1) and the lower plate (2). One end of the support member (6) is connected to the upper plate (1), and the other end of the support member (6) is connected to the lower plate (2).

2. A filter element according to claim 1, characterized in that: The support member (6) is located at one end of the gas storage chamber (4) away from the gas outlet (5). The support member (6) is arranged in a triangular column shape and is hollow inside. The support member (6) divides the filter paper layer (3) into three sections. The filter paper layer (3) is bonded and fixed to the support member (6).

3. A filter element according to claim 2, characterized in that: Both the inner wall of the upper plate (1) and the inner wall of the lower plate (2) are provided with protrusions (7). The protrusions (7) are arranged in a triangular column shape. Both ends of the support member (6) are open. One of the protrusions (7) is inserted into the opening at one end of the support member (6), and the other protrusion (7) is inserted into the opening at the other end of the support member (6).

4. A filter element according to claim 1, characterized in that: Several anti-slip grooves (8) are provided on the outer side of the upper plate (1) and the outer side of the lower plate (2).

5. A filter element according to claim 1, characterized in that: The upper plate (1) is provided with a positioning hole (9), which extends from the upper plate (1) to the lower plate (2), and a first sealing ring (10) is fixedly installed on the outside of the positioning hole (9).

6. A filter element according to claim 1, characterized in that: A sealing plate (11) is integrally formed on the outer side of the air outlet (5). One end of the sealing plate (11) is snapped onto the upper plate (1), and the other end of the sealing plate (11) is snapped onto the lower plate (2).

7. A filter element according to claim 6, characterized in that: A second sealing ring (12) is sleeved on the outer side of the air outlet (5). The outer surface of the second sealing ring (12) is threaded and the second sealing ring (12) is threadedly connected to the outer wall of the air outlet (5).

8. A filter element according to claim 7, characterized in that: A detachable dust cap (13) is provided at the opening of the air outlet (5).

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