CN219220608U

CN219220608U - Air filter throttle inlet structure

Info

Publication number: CN219220608U
Application number: CN202320075614.0U
Authority: CN
Inventors: 马超; 佟玲
Original assignee: Jiangmen Dachangjiang Group Co Ltd
Current assignee: Jiangmen Dachangjiang Group Co Ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-20
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses an air filter throttling air inlet structure which comprises an air filter and a throttle pipe, wherein the throttle pipe is arranged in an air filter air inlet, the throttle pipe is provided with a reduced diameter pipe section and an equal diameter pipe section, the equal diameter pipe section is connected with a small diameter end of the reduced diameter pipe section, a plurality of ribs are uniformly distributed on the periphery of a large diameter end of the reduced diameter pipe section, and the ribs extend downwards and form an opening with the outer wall of the reduced diameter pipe section; the inner wall of the air inlet of the air filter is provided with a plurality of clamping grooves for the ribs to be matched and clamped. By adopting the utility model, the high-frequency noise from the air inlet of the air filter can be effectively reduced, the attenuation of the air filter is further improved, and the performance of the engine for reducing the air inlet noise is further improved; and when the assembly is carried out, the ribs are extruded by the clamping grooves to generate slight elastic deformation, so that the assembly is easy, and after the assembly is carried out in place, the resilience force of the ribs enables the ribs to be tightly attached to the clamping grooves, so that the ribs are not easy to fall off.

Description

Air filter throttle inlet structure

Technical Field

The utility model relates to the technical field of air filters of engines, in particular to a throttle air inlet structure of an air filter.

Background

At present, vehicles are increasingly commonly incorporated into the life of ordinary households. Noise and vibration quality (NVH) of the whole vehicle is also becoming more important. Air intake system noise is one of the main sources of noise in a vehicle. The engine air intake system mainly comprises an air filter (also called an air filter for short) and an air intake manifold, wherein the air filter is mainly used for filtering air entering the engine so as to filter impurities in the air, clean air is conveyed into the air intake manifold, and then the clean air is distributed to each cylinder body through the air intake manifold. Besides the function of filtering air, the air filter can also utilize the resonant cavity to achieve the purpose of attenuating and reducing the air intake noise of the engine. However, when the intake noise comes from the air inlet of the air filter and belongs to high-frequency noise, the purpose of reducing the intake noise is difficult to achieve by the technical means of the resonant cavity.

Disclosure of Invention

The purpose of the utility model is that: provided is an air filter throttle intake structure capable of effectively reducing high-frequency noise from an air filter intake port.

In order to achieve the above purpose, the utility model provides an air filter throttling air inlet structure, which comprises an air filter and a throttle pipe, wherein the throttle pipe is arranged in an air filter air inlet, the throttle pipe is provided with a reduced diameter pipe section and an equal diameter pipe section, the equal diameter pipe section is connected with a small diameter end of the reduced diameter pipe section, a plurality of ribs are uniformly distributed on the periphery of a large diameter end of the reduced diameter pipe section, and the ribs extend downwards and form openings with the outer wall of the reduced diameter pipe section; the inner wall of the air inlet of the air filter is provided with a plurality of clamping grooves for the ribs to be matched and clamped.

As a preferable scheme of the utility model, the included angle formed by the rib and the central axis of the throttle pipe is more than 0 degree and less than 3 degrees.

In a preferred embodiment of the present utility model, the throttle pipe is made of polypropylene.

As a preferable scheme of the utility model, the outer diameter of the large-caliber end of the reducing pipe section is matched with the inner diameter of the air inlet of the air filter.

As a preferable scheme of the utility model, the end face of the large-caliber end of the reducing pipe section is flush with the end face of the air inlet of the air filter.

Compared with the prior art, the air filter throttling air inlet structure has the beneficial effects that:

according to the utility model, the air inlet flow speed is changed in a mode of installing the throttle pipe at the air inlet of the air filter, different performance outputs are matched, and meanwhile, the air inlet noise elimination is carried out through the pipe diameter of the throttle pipe and the rapid expansion of the cavity of the air filter, so that the high-frequency noise from the air inlet of the air filter can be effectively reduced, the air filter attenuation is further improved, and the performance of the engine for air inlet noise is further reduced; and through rib and draw-in groove cooperation, the rib can produce slight elastic deformation by the draw-in groove extrusion during the assembly, easy assembly, and after the assembly is put in place, the resilience force of rib makes its closely laminating with the draw-in groove, is difficult for droing.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of a throttle inlet structure of an air filter according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken in the direction A-A of the structure shown in FIG. 1;

FIG. 3 is a front view of the throttle tube;

fig. 4 is a top view of the throttle tube.

The marks in the figure:

an air filter 1, an air filter air inlet 11 and a clamping groove 12; throttle pipe 2, reducing pipe section 21, equal diameter pipe section 22, ribs 23, opening 24; an air inlet pipeline 3, a joint 31 and a limiting convex ring 32.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the components referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

As shown in fig. 1 to 4, the air filter throttling air inlet structure of the preferred embodiment of the utility model comprises an air filter 1 and a throttle pipe 2, wherein the throttle pipe 2 is arranged in an air filter air inlet 11, the throttle pipe 2 is provided with a reduced diameter pipe section 21 and an equal diameter pipe section 22, the equal diameter pipe section 22 is connected with a small diameter end of the reduced diameter pipe section 21, a plurality of ribs 23 are uniformly distributed on the periphery of a large diameter end of the reduced diameter pipe section 21, and the ribs 23 extend downwards and form openings 24 with the outer wall of the reduced diameter pipe section 21; the inner wall of the air inlet 11 of the air filter is provided with a plurality of clamping grooves 12 for the ribs 23 to be matched and clamped. In this embodiment, 4 ribs 23 and 4 slots 12 are provided.

Therefore, according to the air filter 1 throttling air inlet structure provided by the embodiment of the utility model, the air filter air inlet 11 is provided with the throttle pipe 2 to change the air inlet flow speed, match different performance outputs, and meanwhile, the air inlet noise elimination is carried out through the abrupt expansion of the pipe diameter of the throttle pipe 2 and the cavity of the air filter 1, so that the high-frequency noise from the air filter air inlet 11 can be effectively reduced, the attenuation of the air filter 1 is further improved, and the performance of the engine air inlet noise is reduced; moreover, by matching the ribs 23 with the clamping grooves 12, the ribs 23 are pressed by the clamping grooves 12 to generate slight elastic deformation during assembly, so that the assembly is easy, and after the assembly is in place, the resilience force of the ribs 23 enables the ribs to be tightly attached to the clamping grooves 12, so that the ribs are not easy to fall off.

Illustratively, in order to ensure that the ribs 23 can be pressed by the clamping grooves 12 to generate elastic deformation with certain strength during assembly, the included angle formed by the ribs 23 and the central axis of the throttle pipe 2 is greater than 0 degree and less than 3 degrees.

Illustratively, the throttle pipe 2 is preferably made of polypropylene, which is easy to form, durable and low in cost.

Illustratively, the outer diameter of the large diameter end of the reduced diameter pipe section 21 is matched with the inner diameter of the air filter air inlet 11, so that the gap between the throttle pipe 2 and the air filter 1 is reduced, and the air entering the gap is reduced to form wind noise.

Illustratively, the end face of the large-caliber end of the reduced diameter tube section 21 is flush with the end face of the air filter air inlet 11. When the air filter air inlet 11 is connected with the air inlet pipeline 3, as the radial protruding limiting convex ring 32 is arranged in the joint 31 of the air inlet pipeline, the limiting convex ring 32 can be propped against the end face of the large-caliber end of the throttle pipe 2 and the end face of the air filter air inlet 11, so that the throttle pipe 2 is effectively prevented from axially jumping, and the throttle pipe 2 is better fixed in the air filter air inlet 11.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. The throttling air inlet structure of the air filter is characterized by comprising the air filter and a throttling pipe, wherein the throttling pipe is arranged in an air inlet of the air filter, the throttling pipe is provided with a reduced diameter pipe section and an equal diameter pipe section, the equal diameter pipe section is connected with a small diameter end of the reduced diameter pipe section, a plurality of ribs are uniformly distributed on the periphery of a large diameter end of the reduced diameter pipe section, and the ribs extend downwards and form an opening with the outer wall of the reduced diameter pipe section; the inner wall of the air inlet of the air filter is provided with a plurality of clamping grooves for the ribs to be matched and clamped.

2. The air filter throttle inlet structure of claim 1, wherein the ribs form an angle with a central axis of the throttle tube that is greater than 0 degrees and less than 3 degrees.

3. The air filter throttle inlet structure according to claim 1, wherein the throttle pipe is made of polypropylene.

4. The air filter throttling air intake structure according to claim 1, wherein an outer diameter of a large diameter end of said reduced diameter tube section is matched with an inner diameter of said air filter air intake.

5. The air filter throttling air intake structure according to claim 1, wherein an end face of the large-caliber end of the reduced-diameter tube section is flush with an end face of the air filter air intake.