Engine air filter box

Abstract

The utility model provides a kind of engine air filter box, it includes shell and filter core being arranged in shell, shell has an air inlet and an air outlet, the outside of air outlet is connected with flexible joint, shell is made of first shell and second shell;First baffle is equipped in first shell, and first baffle side forms first air inlet chamber and first filter chamber, second baffle is equipped in second shell, and second baffle side forms second air inlet chamber and second filter chamber, first filter chamber and second filter chamber are respectively provided with first limit slot and second limit slot, and the edge of filter core is provided with adhesive tape, and the edge of filter core is fixed with first limit slot and second limit slot cooperation;First baffle or second baffle is provided with gas guide hole.The utility model has good shock resistance, can keep the installation air tightness of filter core under vibration condition or installation condition of inclination, inversion, filtering effect is stable, and the influence of engine vibration is smaller.

Description

Technical Field

[0001] This utility model relates to the field of automotive intake system technology, specifically to an engine air filter box. Background Technology

[0002] The engine air filter box is located at the engine intake and is mainly used to filter dust, particulate matter, and other impurities from the air entering the engine, ensuring complete fuel combustion and reducing mechanical wear. In traditional engine structures, severe engine vibrations are transmitted to the air filter box housing through the rigidly connected intake pipe. Prolonged exposure to vibration can lead to problems such as fatigue cracking of the plastic housing, failure of the seals between the upper and lower housings, and loosening and leakage at the connection between the exhaust pipe and the throttle body due to vibration stress.

[0003] Patent application CN202121708659.4 discloses a mounting bracket for an automotive engine air filter, comprising an air filter and mounting brackets disposed on both sides of the bottom of the air filter. The middle of the mounting bracket protrudes upward, and an anti-collision pad is provided on the inner side of the top surface of the mounting bracket. A fastening assembly for positioning the mounting bracket is provided on the outer end of the mounting bracket, and a vibration damping assembly for shock absorption of the air filter is provided on the upper part of the inner end of the mounting bracket. This utility model has a simple structure. The Z-shaped mounting bracket effectively increases the elasticity of the bracket and reduces the rigidity of the inner end of the mounting bracket, which facilitates the reduction of vibration force transmitted to the air filter. The contact between the buffer rubber column and the anti-vibration pad block avoids the occurrence of abnormal vibration and noise from the air filter caused by large vibrations. It effectively reduces the vibration force transmitted to the air filter and avoids large deformation and damage to the fixing ring and buffer ring due to frequent vibration during shock absorption. The above technical solution reduces the impact of engine vibration on the air filter box by setting an elastic damping structure on the outside of the air filter, but it still lacks improvement on the air filter box's own vibration resistance. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides an engine air filter box that exhibits strong stability under long-term engine vibration and is less prone to problems such as sealing failure, loosening, and air leakage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An engine air filter box includes a housing and a filter element disposed within the housing. The housing has an air inlet and an air outlet respectively disposed on both sides of the filter element. A flexible connector is connected to the outer side of the air outlet. The housing is composed of a first housing and a second housing that are detachably connected to each other. A first partition is provided inside the first housing, and a first air inlet chamber and a first air filter chamber are formed on both sides of the first partition. A second partition is provided inside the second housing, and a second air inlet chamber and a second air filter chamber are formed on both sides of the second partition. The ends of the first partition and the ends of the second partition are shaped and corresponding in position. The first air filter chamber and the second air filter chamber are respectively provided with a first limiting groove and a second limiting groove. An adhesive strip is provided on the edge of the filter element, and the edge of the filter element is fixed in place by engaging with the first limiting groove and the second limiting groove. An air guide port is provided on the first partition or the second partition.

[0007] Furthermore, the inner bottom surface of the first air filtration chamber has two elastic limiting strips that are parallel to each other and spaced apart. The space between the two elastic limiting strips constitutes the first part of the first limiting groove. The two opposite inner wall surfaces of the first air filtration chamber are recessed and constitute the second part of the first limiting groove. The inner bottom surface and the two opposite inner wall surfaces of the second air filtration chamber are recessed to form the second limiting groove with a U-shaped structure.

[0008] Furthermore, the ends of the first partition and / or the second partition are provided with elastic abutment strips, and the ends of the first partition and the second partition are sealed together by the elastic abutment strips.

[0009] Furthermore, the first limiting groove elastically abuts against the filter element, and the second limiting groove is snapped and fixed to the filter element.

[0010] Furthermore, the first partition includes a first main plate and two first side plates that are perpendicularly connected to both sides of the first main plate. The first side plates are fitted to the inner wall of the first housing and extend to the edge of the first limiting groove. The second partition includes a second main plate and two second side plates that are perpendicularly connected to both sides of the second main plate. The second side plates are fitted to the inner wall of the second housing and the extension length of the second side plates is greater than that of the first side plates. The middle part of the second side plates is recessed and forms part of the second limiting groove.

[0011] Furthermore, the elastic abutment strip is disposed at the end of the first partition plate, and the elastic abutment strip covers the ends of the first main body plate and the first side plate.

[0012] Furthermore, an air intake pipe is connected to the inner side of the air intake interface. The air intake pipe is located in the first air intake chamber or the second air intake chamber, and the inner diameter of the air intake pipe gradually decreases.

[0013] Furthermore, the first housing is provided with a first resonant cavity with a volume smaller than the first air intake cavity, the first resonant cavity and the first air intake cavity are located on the same side of the first partition, and the first resonant cavity and the first air intake cavity are separated by a third partition; the second housing is provided with a second resonant cavity with a volume smaller than the second air intake cavity, the second resonant cavity and the second air intake cavity are located on the same side of the second partition, and the second resonant cavity and the second air intake cavity are separated by a fourth partition.

[0014] Furthermore, during use, the third partition and the fourth partition are staggered, so that the first air intake cavity, the first resonant cavity, the second air intake cavity, and the second resonant cavity are interconnected.

[0015] Furthermore, the first side of the first housing is movably hinged to the second housing via a hinge, and the second side of the first housing is detachably connected to the second housing via a bolt mechanism.

[0016] Furthermore, a fixing bracket with screw holes is connected to the outer side of the first housing or the second housing.

[0017] Furthermore, the air intake port is disposed in the first housing, and the air outlet port is disposed in the second housing.

[0018] The following beneficial effects can be achieved by applying this utility model:

[0019] 1. This utility model features a flexible joint at the engine's exhaust port. The flexible joint uses soft materials such as rubber to block vibration transmission between the engine and the air filter box, reducing the impact of vibration on the air filter box. The filter element has rubber strips on its edge, and two elastic limiting strips are provided at the first limiting groove. When the first and second housings are assembled, the filter element makes elastic contact with the first and second limiting grooves, which provides buffering and sealing under vibration conditions, thereby maintaining the filtration effect of the filter element. Furthermore, the air tightness of the air filter box is not affected even if it is installed tilted or upside down, thus adapting to different usage requirements.

[0020] 2. In some embodiments of this utility model, the first partition of the first housing and the second partition of the second housing are mutually abutted by an elastic abutting strip, which ensures the sealing of the first partition and the second partition under vibration conditions, and makes the airflow in the air intake chamber and the air filter chamber more stable.

[0021] 3. In some embodiments of this utility model, the first limiting groove is elastically abutted against the filter element, and the second limiting groove is fixedly connected to the filter clip. When the air filter box is opened, the filter element will be fixed on the second housing and move with the second housing, so that the filter element will not fall off, which facilitates the replacement of the filter element.

[0022] 4. In some embodiments of this utility model, a resonant cavity is integrated inside the air filter box to reduce airflow pulsation noise, and an air intake pipe with a reduced inner diameter is connected inside the air intake interface to reduce flow resistance by increasing the gas flow rate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the filter element structure;

[0025] Figure 3 This is a schematic diagram of the outer shell structure;

[0026] Figure 4 This is a schematic diagram of the first shell structure;

[0027] Figure 5 This is a schematic diagram of the second shell structure;

[0028] In the figure, 1-first housing, 11-first partition, 111-air vent, 112-elastic abutment strip, 113-first main body plate, 114-first side plate, 12-first air filter chamber, 121-first limiting groove, 122-elastic limiting strip, 13-first air inlet chamber, 131-air inlet pipe, 14-first resonant cavity, 15-third partition, 2-second housing, 21-second partition, 211-second main body plate, 212-second main body plate, 22-second air filter chamber, 221-second limiting groove, 23-second air inlet chamber, 24-second resonant cavity, 25-fourth partition, 3-filter element, 4-air inlet interface, 5-air outlet interface, 6-hinge, 7-bolt mechanism, 8-fixed support. Detailed Implementation

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0030] Reference Figures 1-4 One embodiment of this utility model provides an engine air filter box, which includes an outer shell formed by assembling a first shell 1 and a second shell 2, and a filter element 3 disposed in the outer shell. More specifically:

[0031] When in use, the first housing 1 constitutes the lower half of the air filter box. A lower cavity is formed in the middle of the first housing, and a first partition 11 is provided in the lower cavity, dividing the lower cavity into two parts. The first side of the first partition 11 forms a first air filter chamber 12, and the second side of the first partition 11 forms a first air inlet chamber 13 and a first resonant chamber 14. The first air inlet chamber 13 and the first resonant chamber 14 are separated by a third partition 15. The first air filter chamber 12 is provided with a first limiting groove 121. The inner bottom surface of the first air filter chamber 12 has two parallel and spaced elastic limiting strips 122. The space between the two elastic limiting strips 122 constitutes the first part of the first limiting groove 121. The two opposite inner wall surfaces of the first air filter chamber 12 are recessed and constitute the first limiting groove. The second part of the groove 121; an air inlet 4 is provided on the side wall of the first housing, and an air inlet pipe 131 with a gradually decreasing inner diameter is connected to the inner side of the air inlet 4. The air inlet pipe 131 is located in the first air inlet chamber 13. The first partition 11 is provided with an air guide port 111 that connects the first air inlet chamber 13 and the first air filter chamber 12. The first partition 11 includes a first main plate 113 and two first side plates 114 that are perpendicularly connected to both sides of the first main plate 113. The first side plates are fitted to the inner wall of the first housing and extend to the edge of the first limiting groove 121. An elastic abutment strip 112 is provided at the end of the first partition, and the elastic abutment strip covers the ends of the first main plate 113 and the first side plates 114. A fixing support 8 with screw holes is connected to the outer side of the first housing.

[0032] When in use, the second housing 2 constitutes the upper part of the air filter box. An upper cavity is formed in the middle of the second housing, and a second partition 21 is disposed within the upper cavity, dividing it into two parts. The first side of the second partition 21 forms a second air filtration chamber 22, and the second side forms a second air intake chamber 23 and a second resonant chamber 24. The second air intake chamber 23 and the second resonant chamber 24 are separated by a fourth partition 25. The inner bottom surface and two opposing inner wall surfaces of the second air filtration chamber 22 are recessed to form a U-shaped second limiting groove 221. The second partition 21 includes a second main plate 211 and two second side plates 212 that are perpendicularly connected to both sides of the second main plate 211. The second side plates 212 are fitted to the inner wall of the second housing and the extension length of the second side plates 212 is greater than that of the first side plates 114. The middle part of the second side plates 212 is recessed and forms part of the second limiting groove 221. The side wall of the second housing is provided with an air outlet 5. A flexible joint is connected to the outside of the air outlet, and the air outlet 5 communicates with the second air filter chamber 22.

[0033] The first side of the first housing 1 is hinged to the second housing 2 via a hinge 6, and the second side of the first housing 1 is detachably connected to the second housing 2 via a bolt mechanism 7. When the first housing and the second housing are closed, the end of the first partition 11 and the end of the second partition 21 are sealed together by an elastic abutment strip 112. The first resonant cavity 14 is located away from the air intake port 4, and the second resonant cavity 24 is located close to the air intake port 4. The third partition 15 and the fourth partition 25 are staggered, so that the first air intake cavity, the first resonant cavity, the second air intake cavity, and the second resonant cavity are interconnected.

[0034] The filter element 3 has an adhesive strip on its edge. When the first housing 1 and the second housing 2 are closed in the installed state, the first limiting groove 121 elastically abuts against the filter element 3, and the second limiting groove 221 is locked and fixed to the filter element. When the first housing 1 and the second housing 2 are opened, the filter element will be fixed on the second housing and move with the second housing, and the filter element will not fall off, which facilitates the replacement of the filter element.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An engine air filter box, characterized in that: The device includes a housing and a filter element (3) disposed within the housing. The housing has an air inlet (4) and an air outlet (5) respectively disposed on both sides of the filter element. A flexible connector is connected to the outside of the air outlet (5). The housing is composed of a first housing (1) and a second housing (2) that are detachably connected to each other. The first housing (1) is provided with a first partition (11), and a first air filter chamber (12) and a first air inlet chamber (13) are formed on both sides of the first partition (11). The second housing (2) is provided with a second partition (21), and the second partition (21) is provided with a first air filter chamber (12) and a first air inlet chamber (13) respectively on both sides. A second air filtration chamber (22) and a second air inlet chamber (23) are formed. The end of the first partition (11) matches the end of the second partition (21) in shape and position. The first air filtration chamber (12) and the second air filtration chamber (22) are respectively provided with a first limiting groove (121) and a second limiting groove (221). The edge of the filter element (3) is provided with a rubber strip. The edge of the filter element (3) is fixed in cooperation with the first limiting groove (121) and the second limiting groove (221). The first partition (11) or the second partition (21) is provided with an air guide port (111).

2. An engine air filter box according to claim 1, characterized in that: The inner bottom surface of the first air filter chamber (12) has two elastic limiting strips (122) that are parallel to each other and spaced apart. The space between the two elastic limiting strips (122) forms the first part of the first limiting groove (121). The two opposite inner wall surfaces of the first air filter chamber (12) are recessed and form the second part of the first limiting groove (121). The inner bottom surface and the two opposite inner wall surfaces of the second air filter chamber (22) are recessed to form the second limiting groove (221) with a U-shaped structure.

3. An engine air filter box according to claim 1, characterized in that: The ends of the first partition (11) and / or the second partition (21) are provided with elastic abutment strips (112), and the ends of the first partition and the second partition cooperate and seal with each other through the elastic abutment strips.

4. An engine air filter box according to claim 2, characterized in that: The first limiting groove (121) elastically abuts against the filter element (3), and the second limiting groove (221) is snapped and fixed to the filter element (3).

5. An engine air filter box according to claim 3, characterized in that: The first partition (11) includes a first main plate (113) and two first side plates (114) that are perpendicularly connected to both sides of the first main plate (113). The first side plates (114) are fitted to the inner wall of the first housing (1) and extend to the edge of the first limiting groove (121). The second partition (21) includes a second main plate (211) and two second side plates (212) that are perpendicularly connected to both sides of the second main plate (211). The second side plates (212) are fitted to the inner wall of the second housing (2) and the extension length of the second side plates (212) is greater than that of the first side plates (114). The middle part of the second side plates (212) is recessed and forms part of the second limiting groove (221). The elastic abutment strip (112) is disposed at the end of the first partition (11) and the elastic abutment strip (112) covers the ends of the first main plate (113) and the first side plates (114).

6. An engine air filter box according to claim 1, characterized in that: An air intake pipe (131) is connected to the inside of the air intake interface (4). The air intake pipe (131) is located in the first air intake chamber (13) or the second air intake chamber (23), and the inner diameter of the air intake pipe (131) gradually decreases.

7. An engine air filter box according to claim 1, characterized in that: The first housing (1) is provided with a first resonant cavity (14) with a volume smaller than that of the first air intake cavity (13). The first resonant cavity (14) and the first air intake cavity (13) are located on the same side of the first partition (11). The first resonant cavity (14) and the first air intake cavity (13) are separated by a third partition (15). The second housing (2) is provided with a second resonant cavity (24) with a volume smaller than that of the second air intake cavity (23). The second resonant cavity (24) and the second air intake cavity (23) are located on the same side of the second partition (21). The second resonant cavity (24) and the second air intake cavity (23) are separated by a fourth partition (25).

8. An engine air filter box according to claim 7, characterized in that: The third partition (15) is offset from the fourth partition (25), so that the first air intake cavity (13), the first resonant cavity (14), the second air intake cavity (23), and the second resonant cavity (24) are interconnected.

9. An engine air filter box according to claim 1, characterized in that: The first side of the first housing (1) is movably hinged to the second housing (2) via a hinge (6), and the second side of the first housing (1) is detachably connected to the second housing (2) via a bolt mechanism (7).

10. An engine air filter box according to claim 1, characterized in that: The air inlet (4) is located in the first housing (1), and the air outlet (5) is located in the second housing (2).

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