Vehicle shell cover sound insulation air filter

Abstract

The utility model discloses a sound insulation air filter for a vehicle shell cover, which belongs to the technical field of air filters, and adopts the technical scheme that the sound insulation air filter comprises an upper shell, a lower shell and a filter element, and is characterized in that the upper shell is connected with the lower shell, the lower shell is provided with an inlet and an outlet, the inlet is communicated with the outlet, the filter element is arranged between the upper shell and the lower shell, and the filter element is connected with the lower shell. According to the air filter, the interlayer is arranged in the upper shell, the sound insulation space is formed between the upper shell and the interlayer in a matched mode, the interlayer is arranged in the upper shell, the overall structural strength can be effectively improved, then the inherent frequency of the upper shell is enhanced, sound transmission is obstructed through the sound insulation space formed between the upper shell and the interlayer in a matched mode, and the sound insulation effect is improved. Therefore, radiation sound of an engine is prevented from directly penetrating through the upper shell, and adverse effects on NVH (Noise Vibration and Harshness) of the whole vehicle are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of air filters, and particularly relates to a shell cover sound insulation air filter for a vehicle. Background Art

[0002] The vehicle air filter is located in the engine intake system. It is an assembly consisting of one or more filter components that clean the air. Its main function is to filter out harmful impurities in the air that will enter the cylinder to reduce the early wear of the cylinder, piston, piston ring, valve and valve seat.

[0003] Nowadays, extended-range vehicles and PHEV vehicles are becoming more and more popular. In the engine compartment of these vehicles, not only the components required for traditional fuel vehicles such as range extenders, engines, gearboxes, etc., but also the components required for electric vehicles such as motors are arranged, resulting in very limited space in the engine compartment. Therefore, in order to improve the space utilization of the engine compartment, the air filter can only be arranged on the top of the range extender and the engine. In order to meet the intake resistance and NVH performance required by the engine, the air filter must reach a certain volume. However, due to the limited height of the top of the range extender and the engine, the cross-sectional area of ​​the air filter can only be increased to meet the volume requirements. Therefore, flat air filters have appeared. However, due to the large cross-sectional area of ​​the air filter, the structural strength of the upper and lower surfaces of this type of air filter is relatively poor. In addition, in order to make the engine compartment of the whole vehicle beautiful, some models use the upper shell of the air filter instead of the decorative cover, and use a smooth design for the upper shell of the air filter, resulting in poor sound insulation performance, causing the internal engine radiation sound to directly penetrate the upper shell and adversely affect the NVH of the whole vehicle. Utility Model Content

[0004] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to propose a vehicle shell cover sound insulation air filter. The technical problem to be solved by the utility model is: how to reduce the adverse effects of engine radiation sound directly penetrating the upper shell on the NVH of the entire vehicle.

[0005] The above technical purpose of the utility model can be achieved through the following technical scheme: a vehicle shell cover sound insulation air filter, including an upper shell, a lower shell and a filter element, the upper shell is connected to the lower shell, the lower shell is provided with an inlet and an outlet, the inlet is communicated with the outlet, the filter element is arranged between the upper shell and the lower shell, an interlayer is arranged in the upper shell, and a sound insulation space is formed between the upper shell and the interlayer.

[0006] In the above-mentioned vehicle shell cover sound insulation air filter, the interlayer is vibration welded in the upper shell.

[0007] In the above-mentioned vehicle shell cover sound insulation air filter, the outer wall of the interlayer is provided with a plurality of positioning grooves, the inner wall of the upper shell is provided with a plurality of positioning blocks, the plurality of positioning grooves respectively correspond to the plurality of positioning blocks, and the plurality of positioning blocks are respectively inserted into the plurality of positioning grooves.

[0008] In the above-mentioned vehicle shell cover sound insulation air filter, the lower surface of the upper shell is provided with reinforcing rib 1, the upper surface of the interlayer is provided with reinforcing rib 2, the reinforcing rib 1 corresponds to the reinforcing rib 2, and the lower surface of the interlayer is provided with reinforcing rib 3.

[0009] In the above-mentioned vehicle shell cover sound insulation air filter, a plurality of positioning buckles are arranged on the lower shell body, and a plurality of positioning buckles are arranged on each of the positioning holes. A plurality of positioning protrusions are arranged on the upper shell body, and a plurality of positioning protrusions respectively correspond to a plurality of positioning holes, and a plurality of positioning protrusions are respectively inserted into a plurality of positioning holes.

[0010] In the above-mentioned vehicle shell cover sound insulation air filter, the upper shell is provided with a plurality of mounting holes 1, the lower shell is provided with a plurality of mounting holes 2, and a plurality of the mounting holes 1 correspond to a plurality of the mounting holes 2.

[0011] In the above-mentioned vehicle shell cover sound insulation air filter, a gasket is arranged between the upper shell and the lower shell.

[0012] In the above-mentioned vehicle shell cover sound insulation air filter, a positioning groove is provided on the gasket, the filter element is adapted to the positioning groove, and the filter element is arranged in the positioning groove.

[0013] In the above-mentioned vehicle shell cover sound insulation air filter, the lower shell is provided with a receiving groove for accommodating the gasket, the gasket is provided with a positioning portion, the lower shell is provided with a positioning notch, the positioning portion is adapted to the positioning notch, and the positioning portion is inserted into the positioning notch.

[0014] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0015] By setting a interlayer in the upper shell, the overall structural strength can be effectively improved, thereby enhancing the natural frequency of the upper shell. In addition, the upper shell and the interlayer cooperate to form a sound insulation space to block the propagation of sound, thereby reducing the engine radiation sound from directly penetrating the upper shell, thereby reducing the adverse effects on the NVH of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment;

[0017] Figure 2 It is a structural schematic diagram of another angle of the embodiment;

[0018] Figure 3 is a cross-sectional view of an embodiment;

[0019] Figure 4 It is a structural schematic diagram of the upper shell of the embodiment;

[0020] Figure 5 is a schematic diagram of the structure of the interlayer of the embodiment;

[0021] Figure 6 It is a partial structural schematic diagram of an embodiment;

[0022] Figure 7 is a schematic structural diagram of the lower housing of the embodiment;

[0023] Figure 8 Schematic diagram of the structure of the gasket of the embodiment.

[0024] Figure numerals: 1. upper shell; 2. lower shell; 3. filter element; 4. inlet; 5. outlet; 6. interlayer; 7. sound insulation space; 8. positioning groove; 9. positioning block; 10. reinforcing rib one; 11. reinforcing rib two; 12. reinforcing rib three; 13. positioning buckle; 14. positioning hole; 15. positioning protrusion; 16. mounting hole one; 17. mounting hole two; 18. gasket; 19. positioning groove; 20. accommodating groove; 21. positioning part; 22. positioning notch. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] A vehicle shell cover sound insulation air filter, such as Figures 1 to 8 As shown, it includes an upper shell 1, a lower shell 2 and a filter element 3, and the upper shell 1 is connected to the lower shell 2. Specifically, in this embodiment, a plurality of mounting holes 16 are opened on the upper shell 1, and a plurality of mounting holes 17 are opened on the lower shell 2. The plurality of mounting holes 16 correspond to the plurality of mounting holes 17, and the connection and fixation between the upper shell 1 and the lower shell 2 are achieved by screwing the mounting holes 16 and the mounting holes 17.

[0027] The lower shell 2 is provided with a plurality of positioning buckles 13, and each of the positioning buckles 13 is provided with a positioning hole 14. The upper shell 1 is provided with a plurality of positioning protrusions 15, and each of the positioning protrusions 15 corresponds to each of the positioning holes 14. Each of the positioning protrusions 15 is inserted into each of the positioning holes 14, and the positioning protrusions 15 are inserted into the positioning holes 14 of the positioning buckles 13. The positioning protrusions 15 are limited by the positioning buckles 13, thereby ensuring the relative stability of the upper shell 1 and the lower shell 2, thereby preventing the relative position of the upper shell 1 and the lower shell 2 from shifting during the assembly process, thereby improving the assembly efficiency.

[0028] The lower shell 2 is provided with an inlet 4 and an outlet 5 , the inlet 4 is communicated with the outlet 5 , and the filter element 3 is arranged between the upper shell 1 and the lower shell 2 .

[0029] An interlayer 6 is provided in the upper shell 1 . It should be noted that, in the present embodiment, the interlayer 6 is welded in the upper shell 1 by vibration, so as to enhance the overall structural strength and further enhance the natural frequency of the upper shell 1 .

[0030] A soundproof space 7 is formed between the upper shell 1 and the interlayer 6, and the soundproof space 7 blocks the sound propagation, thereby reducing the engine radiation sound from directly penetrating the upper shell 1, thereby reducing the adverse effects on the NVH of the entire vehicle. Preferably, the interlayer 6 can be made of a material with sound absorption or sound insulation properties to further reduce the propagation of sound.

[0031] Furthermore, the outer wall of the interlayer 6 is provided with a plurality of positioning grooves 8, and the inner wall of the upper shell 1 is provided with a plurality of positioning blocks 9, and the plurality of positioning grooves 8 correspond to the plurality of positioning blocks 9 respectively, and the plurality of positioning blocks 9 are respectively inserted into the plurality of positioning grooves 8. Through the cooperation between the positioning blocks 9 and the positioning grooves 8, the relative stability of the interlayer 6 and the upper shell 1 is ensured, which can avoid the relative position shift of the two during the vibration welding process, thereby ensuring the quality of vibration welding, and further improve the stability of the overall structure.

[0032] The lower surface of the upper shell 1 is provided with a reinforcing rib 10, which can effectively improve the structural strength of the upper shell 1. The upper surface of the interlayer 6 is provided with a reinforcing rib 2 11, and the reinforcing rib 10 corresponds to the reinforcing rib 2 11. The lower surface of the interlayer 6 is provided with a reinforcing rib 3 12, and the reinforcing rib 2 11 and the reinforcing rib 3 12 can effectively improve the structural strength of the interlayer 6. The reinforcing rib 10 corresponds to the reinforcing rib 2 11, which can further improve the stability of the structure.

[0033] A gasket 18 is provided between the upper shell 1 and the lower shell 2 to improve the sealing performance between the two and reduce the wear between the two.

[0034] A receiving groove 20 for receiving the gasket 18 is provided on the lower shell 2, and the receiving groove 20 is adapted to the gasket 18. The gasket 18 is limited by the receiving groove 20, thereby ensuring the stability of the gasket 18. Furthermore, a positioning portion 21 is provided on the gasket 18, and a positioning notch 22 is opened on the lower shell 2. The positioning portion 21 is adapted to the positioning notch 22, and the positioning portion 21 is inserted into the positioning notch 22. The positioning portion 21 cooperates with the positioning notch 22 to ensure the relative stability of the gasket 18 and the lower shell 2. Moreover, during assembly, the installation of the gasket 18 can be quickly completed through the relative position relationship between the positioning portion 21 and the positioning notch 22, and the assembly is more convenient, quick and efficient.

[0035] The gasket 18 is provided with a positioning groove 19 , and the filter element 3 is matched with the positioning groove 19 . The filter element 3 is arranged in the positioning groove 19 . The positioning groove 19 positions the filter element 3 , thereby improving the stability of the filter element 3 .

[0036] The specific embodiments described in this article are merely examples of the spirit of the utility model; technicians in the technical field to which the utility model belongs can make various modifications or additions to the described specific embodiments or replace them in a similar manner, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A vehicle shell cover soundproof air filter, comprising an upper shell (1), a lower shell (2) and a filter element (3), characterized in that: The upper shell (1) is connected to the lower shell (2); an inlet (4) and an outlet (5) are provided on the lower shell (2); the inlet (4) is communicated with the outlet (5); the filter element (3) is arranged between the upper shell (1) and the lower shell (2); an interlayer (6) is provided in the upper shell (1); and a sound insulation space (7) is formed between the upper shell (1) and the interlayer (6).

2. The vehicle shell cover sound insulation air filter according to claim 1, characterized in that: The interlayer (6) is vibration welded inside the upper shell (1).

3. The vehicle shell cover sound insulation air filter according to claim 1, characterized in that: The outer wall of the interlayer (6) is provided with a plurality of positioning grooves (8), and the inner wall of the upper shell (1) is provided with a plurality of positioning blocks (9). The plurality of positioning grooves (8) respectively correspond to the plurality of positioning blocks (9), and the plurality of positioning blocks (9) are respectively inserted into the plurality of positioning grooves (8).

4. The vehicle shell cover sound insulation air filter according to claim 1, characterized in that: The lower surface of the upper shell (1) is provided with a reinforcing rib one (10), the upper surface of the interlayer (6) is provided with a reinforcing rib two (11), the reinforcing rib one (10) corresponds to the reinforcing rib two (11), and the lower surface of the interlayer (6) is provided with a reinforcing rib three (12).

5. The vehicle shell cover sound insulation air filter according to claim 1, characterized in that: The lower shell (2) is provided with a plurality of positioning buckles (13), each of which is provided with a positioning hole (14); the upper shell (1) is provided with a plurality of positioning protrusions (15), each of which corresponds to each of the positioning holes (14), and each of which is inserted into each of the positioning holes (14).

6. The vehicle shell cover sound insulation air filter according to claim 1, characterized in that: The upper shell (1) is provided with a plurality of mounting holes one (16), and the lower shell (2) is provided with a plurality of mounting holes two (17), and the plurality of mounting holes one (16) corresponds to the plurality of mounting holes two (17).

7. The vehicle shell cover sound insulation air filter according to claim 1, characterized in that: A gasket (18) is provided between the upper shell (1) and the lower shell (2).

8. The vehicle shell cover sound insulation air filter according to claim 7, characterized in that: The gasket (18) is provided with a positioning groove (19), the filter element (3) is adapted to the positioning groove (19), and the filter element (3) is arranged in the positioning groove (19).

9. The vehicle shell cover sound insulation air filter according to claim 7, characterized in that: The lower shell (2) is provided with a receiving groove (20) for receiving the gasket (18), the gasket (18) is provided with a positioning portion (21), the lower shell (2) is provided with a positioning notch (22), the positioning portion (21) is matched with the positioning notch (22), and the positioning portion (21) is inserted into the positioning notch (22).

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