Filter with more reliable performance

Abstract

The utility model relates to the technical field of automobile air filtration, in particular to a filter with more reliable performance, which comprises a filter main body, an upper shell and a lower shell which are clamped with each other are arranged on the filter main body, a filter element is arranged in the upper shell and the lower shell of the filter main body, a filter element center hole is arranged in the middle of the filter element, and a filter element is arranged in the filter element center hole. An upper tubular column and a lower tubular column which are of an integrated structure are arranged on the upper shell and the lower shell respectively, a supporting plate is further arranged in the lower shell, the supporting plate is supported below the filter element, and filter paper at the upper end and the lower end of the filter element is connected with the upper shell and the supporting plate through hot melting welding. According to the filter with the more reliable performance, the bottom of the filter element is supported through the supporting plate manufactured through stamping, airflow impact of an air inlet can be resisted, dust is prevented from penetrating through the supporting plate, the filter element is directly connected with the upper shell and the supporting plate through hot melting welding, and the durability and blasting performance of the filter element can be guaranteed; meanwhile, the use of a traditional upper cover plate is reduced, and the product cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air filtration, in particular to a filter with more reliable performance. Background Art

[0002] The automobile air shock absorber spring is an advanced suspension system component. It replaces the traditional steel coil spring and uses compressed air as an elastic medium to adjust the chassis height and suspension hardness of the vehicle to adapt to different load conditions and road conditions. Before the compressed air enters the vehicle air suspension system, a filter is usually installed at the compressor outlet or on the pipeline to filter out large particles and protect the entire system from foreign particles. The filter element is the core part of the entire filter, and its structural design directly affects the filtering effect and air flow. For example, the automobile filter disclosed in the publication number CN206000653U filters the air through the filter element.

[0003] The filter elements of existing filters on the market usually have cover plates at both ends made of non-woven fabrics or metal stampings. The filter paper in the filter element is connected to the cover plates at both ends by gluing. The filter element and the upper shell are fitted with interference fit to prevent dust in the air from wrapping around the filter paper and penetrating the filter element. At the same time, the lower cover is used to prevent dust in the air from penetrating the filter element. However, the glue connection is easily loosened by heat, affecting the stability of the filter element. Utility Model Content

[0004] The purpose of the utility model is to provide a filter with more reliable performance, so as to solve the problem raised by the above background technology that the cover plates at both ends of the filter element of the filter on the market are made of non-woven fabrics or metal stampings, and the filter paper in the filter element is connected to the cover plates at both ends by glue bonding, which is easy to loosen due to heat, affecting the stability of the filter element.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter with more reliable performance, comprising a filter body, the filter body is provided with an upper shell and a lower shell that are clamped with each other, and the filter body is provided with a filter element in the upper shell and the lower shell, and a filter element center hole is provided in the middle of the filter element, the upper shell and the lower shell are respectively provided with an upper pipe column and a lower pipe column of an integral structure, and a support plate is also provided in the lower shell, and the support plate is supported under the filter element, the filter papers at the upper and lower ends of the filter element are connected to the upper shell and the support plate by hot-melt welding, so that the filter element is tightly fixed between the upper shell and the support plate.

[0006] Preferably, the upper tube column passes through the upper shell body, and the upper tube column and the filter element are tightly plugged through the center hole of the filter element.

[0007] Preferably, a gap is provided between the outer side surface of the filter element and the upper shell and the lower shell, and the upper shell and the lower shell are fixed by laser welding.

[0008] Preferably, support seats of an integral structure are evenly spaced in the lower shell, and the support seats are of an L-shaped structure, and the support seats are fastened to the outside of the support plate by clamping.

[0009] Preferably, the support plate is a stamped part, and a positioning protrusion protruding upward is provided in the middle of the support plate, and the positioning protrusion is clamped with the filter element through the center hole of the filter element.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the filter with more reliable performance uses a support plate made by stamping to support the bottom of the filter element, which can resist the impact of airflow from the air inlet and prevent dust from penetrating the support plate. The filter element is directly connected to the upper shell and the support plate by hot melt welding, which can ensure the durability and blasting performance of the filter element, while reducing the use of traditional upper covers and reducing product costs. The upper shell and the lower shell of the filter with more reliable performance are laser welded to reduce the generation of external welding slag and increase the processing speed. The middle part of the support plate is formed by stamping to form a positioning protrusion that protrudes upward, which can position the filter element and allow the air entering the filter to flow to the side through the groove formed by the positioning protrusion, thereby realizing the circulation of air in the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the existing filter structure;

[0012] Figure 2 This is a side view of the internal structure of a filter with more reliable performance according to the utility model;

[0013] Figure 3 This utility model is a filter with more reliable performance Figure 2 The enlarged structural diagram at A in the middle;

[0014] Figure 4 This is a top view of the inner structure of the lower shell of a filter with more reliable performance according to the utility model;

[0015] Figure 5 This is a top view of a support plate of a filter with more reliable performance according to the utility model.

[0016] In the figure: 1. filter body; 2. upper shell; 201. upper tube column; 3. filter element; 301. center hole of filter element; 4. lower shell; 401. lower tube column; 402. support seat; 5. support plate; 501. positioning protrusion. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-5 The utility model provides a technical solution: a filter with more reliable performance, including a filter body 1, an upper shell 2 and a lower shell 4 that are mutually engaged are arranged on the filter body 1, and a filter element 3 is arranged in the upper shell 2 and the lower shell 4 of the filter body 1, and a filter element center hole 301 is arranged in the middle of the filter element 3, an upper pipe column 201 passes through the upper shell 2, and the upper pipe column 201 and the filter element 3 are tightly plugged through the filter element center hole 301, this structure enables the filter element 3 to be positioned relative to the upper shell 2 through the upper pipe column 201, so that the filter element 3 and the upper shell 2 are hot-melt welded, and the upper shell 2 and the lower shell The body 4 is respectively provided with an upper pipe column 201 and a lower pipe column 401 of an integral structure, and a support plate 5 is also provided in the lower shell 4, and the support plate 5 is supported below the filter element 3. The outer side of the filter element 3 is gap-set with the upper shell 2 and the lower shell 4, and the upper shell 2 and the lower shell 4 are fixed by laser welding. This structure allows air to enter the filter body 1 from the lower pipe column 401 of the lower shell 4 and enter the center hole 301 of the filter element from the outside of the filter element 3 to achieve air filtration. The upper shell 2 and the lower shell 4 are laser welded to avoid the situation where traditional rotary friction welding is prone to produce welding slag, and the welding strength is high. The connection efficiency and speed are also relatively fast, which improves the blasting performance of the filter body 1 and makes the filter body 1 more reliable to use. The filter papers at the upper and lower ends of the filter element 3 are connected to the upper shell 2 and the support plate 5 by hot-melt welding, so that the filter element 3 is tightly fixed between the upper shell 2 and the support plate 5. The lower shell 4 is evenly spaced with support seats 402 of an integrated structure, and the support seats 402 are L-shaped structures, and the support seats 402 are fastened with the outside of the support plate 5. This structure enables the support plate 5 to be firmly positioned through the support seat 402, and the gap between the support plate 5 and the lower shell 4 is matched, so that air can pass through the lower shell 4. After the pipe column 401 enters the lower shell 4, the support plate 5 can resist the impact of the airflow and enable the air to reach the side of the filter element 3 from the bottom of the support plate 5, so that the air can be filtered through the filter element 3. The support plate 5 is a stamping part, and a positioning protrusion 501 protruding upward is provided in the middle of the support plate 5, and the positioning protrusion 501 is clamped with the filter element 3 through the center hole 301 of the filter element. This structure allows the bottom of the filter element 3 to be positioned relative to the support plate 5 through the positioning protrusion 501. At the same time, the support plate 5 can form a groove structure for guiding the flow at the bottom through the positioning protrusion 501, so that the air can flow to the side.

[0019] Working principle: When using the filter with more reliable performance, first, when the filter element 3 is fixed by hot-melt welding, the filter element 3 is clamped with the positioning protrusion 501 through the filter element center hole 301 to realize the connection between the filter element 3 and the support plate 5, and then the filter element 3 is plugged and matched with the upper tube column 201 through the filter element center hole 301 to realize the fixation of the filter element 3 and the upper shell 2, and then the upper shell 2 and the lower shell 4 are clamped. During this process, the support seat 402 clamps and tightens the support plate 5, and laser welds and fixes the upper shell 2 and the lower shell 4, so that the filter body 1 is fixed to the pipeline through the lower tube column 401 and the upper tube column 201, so that the air enters the filter body 1 from the lower tube column 401, and after the support plate 5 resists the impact of the airflow, the groove formed by the positioning protrusion 501 guides the air to the side, and then the air passes through the filter element 3 and enters the filter element center hole 301, to realize air filtration, thereby completing a series of work.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter with more reliable performance, comprising a filter body (1), characterized in that: The filter body (1) is provided with an upper shell (2) and a lower shell (4) that are locked together, and the filter body (1) is provided with a filter element (3) in the upper shell (2) and the lower shell (4), and a filter element center hole (301) is provided in the middle of the filter element (3), and the upper shell (2) and the lower shell (4) are respectively provided with an upper pipe column (201) and a lower pipe column (401) of an integral structure, and a support plate (5) is also provided in the lower shell (4), and the support plate (5) is supported below the filter element (3), and the filter papers at the upper and lower ends of the filter element (3) are connected to the upper shell (2) and the support plate (5) by hot-melt welding, so that the filter element (3) is tightly fixed between the upper shell (2) and the support plate (5).

2. A filter with more reliable performance according to claim 1, characterized in that: The upper tube column (201) passes through the upper shell body (2), and the upper tube column (201) and the filter element (3) are tightly plugged together through the filter element center hole (301).

3. A filter with more reliable performance according to claim 1, characterized in that: The outer side surface of the filter element (3) is provided with a gap from the upper shell (2) and the lower shell (4), and the upper shell (2) and the lower shell (4) are fixed by laser welding.

4. A filter with more reliable performance according to claim 1, characterized in that: The lower shell (4) is evenly spaced with support seats (402) of an integrated structure, and the support seats (402) are of an L-shaped structure, and the support seats (402) are fastened to the outside of the support plate (5) by clamping.

5. A filter with more reliable performance according to claim 1, characterized in that: The support plate (5) is a stamped part, and a positioning protrusion (501) protruding upward is provided in the middle of the support plate (5), and the positioning protrusion (501) is clamped with the filter element (3) through the filter element center hole (301).

Images