Automobile air inlet resonator

Abstract

The utility model discloses an automobile air inlet resonator which comprises an outer shell, a silencing assembly is arranged in the outer shell and comprises a cylindrical pipe, the cylindrical pipe is inserted into the outer shell, the two ends of the cylindrical pipe are fixedly connected with annular bases, and a sound insulation felt is wrapped between the two annular bases. A resonant cavity is formed by an area defined by the inner wall of the sound insulation felt, the outer wall of the cylindrical pipe and the two annular bases, a plurality of annular partition plates and strip-shaped partition plates are fixedly connected to the outer portion of the cylindrical pipe and divide the resonant cavity into a plurality of sound attenuation cavities, and the volumes of the sound attenuation cavities are gradually reduced from the air inlets to the air outlets. A silencing hole communicated with the silencing cavity is formed in the cylindrical pipe, and the air inlet and the air outlet are in sealed communication with connecting corrugated pipes through dismounting and mounting assemblies; the noise of gas entering the shell is greatly reduced through the shell and the noise reduction assembly, and the shell and the noise reduction assembly are arranged in a split mode, so that production and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of resonators, in particular to an automobile air intake resonator. Background Art

[0002] The resonator is set at the front end of the car's air intake pipe, usually in a downward position with the front of the car. Its main function is to reduce the intake noise and buffer and stabilize the intake.

[0003] The existing automobile resonator as a whole adopts a hollow shell as the intake buffer cavity, and no corresponding noise reduction structure is provided, resulting in poor noise reduction effect of the intake noise.

[0004] Therefore, an automobile intake resonator is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an automobile intake resonator, so as to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] An automobile air intake resonator comprises a shell, the interior of the shell is hollow, two ends of the shell are respectively provided with an air inlet and an air outlet, and a silencer component is provided inside the shell;

[0008] The muffler assembly comprises a cylindrical tube, the cylindrical tube is inserted into the interior of the shell, both ends of the cylindrical tube are fixedly connected with annular seats, a sound insulation felt is wrapped between the two annular seats, the inner wall of the sound insulation felt, the outer wall of the cylindrical tube and the area surrounded by the two annular seats form a resonance cavity, the outside of the cylindrical tube is fixedly connected with a plurality of annular partitions and strip partitions, the strip partitions and the annular partitions divide the resonance cavity into a plurality of muffler cavities, the volume of the muffler cavity gradually decreases from the air inlet to the air outlet, and a muffler hole connected to the muffler cavity is opened on the cylindrical tube;

[0009] The air inlet and the air outlet are both sealed and connected with a connecting bellows through a disassembly assembly component.

[0010] In an automobile air intake resonator according to the utility model, the outer wall of the sound insulation felt and the inner wall of the shell are in interference fit.

[0011] In an automotive intake resonator according to the present utility model, wherein the disassembly and assembly component includes a connector and a U-shaped limit clip. The connector is fixedly connected to one end of the connecting bellows. A first stepped groove is provided at one end of the connector close to the connecting bellows, and an annular card slot is provided at one end of the connector close to the connecting bellows. A second stepped groove is provided at the end of the connector far from the connecting bellows, and a sealing ring is sleeved on the second stepped groove. Installation grooves are provided on the inner walls at both ends of the outer shell. The connector is inserted into the installation groove, and the sealing ring is pressed between the second stepped groove and the annular seat. One end of the connector close to the annular seat extends into the cylindrical tube. Limit holes are provided at both ends of the outer shell. Both ends of the U-shaped limit clip can pass through the limit holes, and the part of the U-shaped limit clip extending into the interior of the outer shell is stuck in the annular card slot, and the first stepped groove abuts against the installation groove.

[0012] In an automotive intake resonator according to the present utility model, wherein the connector and the connecting bellows are integrally formed by injection molding.

[0013] In an automotive intake resonator according to the present utility model, wherein an elastic connecting piece is fixedly connected to the outer wall of the outer shell. A C-shaped elastic clamping sleeve is fixedly connected to the movable end of the elastic connecting piece, and the U-shaped limit clip can be clamped into the C-shaped elastic clamping sleeve.

[0014] In an automotive intake resonator according to the present utility model, wherein a plurality of annular binding grooves for binding in the automotive engine compartment are provided on the outer wall of the outer shell.

[0015] In an automotive intake resonator according to the present utility model, wherein the outer shell, the C-shaped elastic clamping sleeve, the elastic connecting piece, the cylindrical tube, the annular seat, the strip-shaped partition board and the annular partition board are all made of plastic, including but not limited to polypropylene plastic and polyethylene plastic.

[0016] In an automotive intake resonator according to the present utility model, wherein the cylindrical tube, the annular seat, the strip-shaped partition board and the annular partition board are integrally formed by injection molding.

[0017] In an automotive intake resonator according to the present utility model, wherein the C-shaped elastic clamping sleeve and the elastic connecting piece are integrally formed by injection molding, and the elastic connecting piece is ultrasonically welded to the outer wall of the outer shell.

[0018] The present utility model at least has the following beneficial effects:

[0019] The utility model greatly reduces the noise of the gas entering the interior of the housing through the provided housing and sound insulation components. Moreover, the housing and the sound insulation components are separately arranged, which is convenient for production and assembly. And the whole is made of plastic material, not only the overall quality is light, but also the inertial force generated by vibration is effectively reduced, and the stability is stronger.

[0020] The provided disassembly components facilitate firmly fixing the sound insulation components in the housing. Moreover, when the housing and the sound insulation components are damaged due to aging or collision, corresponding replacements can be made, reducing the maintenance cost. And during disassembly and assembly, only the U-shaped limit clip needs to be removed from the housing, without the need for other tools, and the operation is convenient.

[0021] Through the provided annular binding groove, the housing can be fixed to the brackets and pipelines in the engine compartment by nylon cable ties without drilling holes, and individuals can assemble it, and it is suitable for most vehicle models. Description of the Drawings

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the utility model;

[0024] Figure 2 is an enlarged schematic structural diagram of part A in the figure;

[0025] Figure 3 is a schematic structural diagram of the sound insulation components of the utility model;

[0026] Figure 4 is a schematic structural diagram of the connecting pipe of the utility model;

[0027] Figure 5 is a schematic partial sectional structural diagram of the utility model;

[0028] Figure 6 is a schematic structural diagram of the housing of the utility model.

[0029] Explanation of the Reference Numerals in the Drawings:

[0030] 1. Housing; 101. Installation groove; 102. Limit hole; 103. Annular binding groove; 2. Sound insulation components; 201. Cylindrical pipe; 202. Annular seat; 203. Strip-shaped partition; 204. Annular partition; 205. Sound insulation cavity; 206. Sound insulation hole; 207. Sound insulation felt; 3. Connecting bellows; 301. Connector; 302. First step groove; 303. Annular clamping groove; 304. Second step groove; 4. U-shaped limit clip; 5. C-shaped elastic bushing; 501. Elastic connecting piece; 6. Sealing ring. DETAILED DESCRIPTION

[0031] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0032] Please refer to Figures 1 to 6 As shown, in the embodiment of the utility model,

[0033] A car air intake resonator comprises a shell 1, wherein the interior of the shell 1 is hollow, an air inlet and an air outlet are respectively arranged at two ends of the shell 1, a muffler assembly 2 is arranged inside the shell 1, and the muffler assembly 2 comprises a cylindrical tube 201, the cylindrical tube 201 is plugged into the interior of the shell 1, and both ends of the cylindrical tube 201 are fixedly connected with an annular seat 202, and a sound insulation felt 207 is wrapped between the two annular seats 202, and the outer wall of the sound insulation felt 207 is interference fit with the inner wall of the shell 1, so that the sound insulation felt 207 can be tightly wrapped around the two annular seats 202. The inner wall of the sound insulation felt 207, the outer wall of the cylindrical tube 201 and the area enclosed by the two annular seats 202 form a resonance cavity. The outside of the cylindrical tube 201 is fixedly connected with a plurality of annular partitions 204 and strip partitions 203. The strip partitions 203 and the annular partitions 204 divide the resonance cavity into a plurality of silencer chambers 205. The volume of the silencer chamber 205 gradually decreases from the air inlet to the air outlet. A silencer hole 206 connected to the silencer chamber 205 is opened on the cylindrical tube 201. The air inlet and the air outlet are sealed and connected with a bellows 3 through a disassembly and assembly component.

[0034] By adopting the above solution, the noise generated by the gas entering the shell 1 absorbs, reflects and offsets the sound waves after passing through the silencing chamber 205, thereby effectively reducing the noise generated by the gas entering the shell 1.

[0035] In this embodiment, the disassembly and assembly component includes a connector 301 and a U-shaped limit clip 4. The connector 301 is fixedly connected to one end of the connecting bellows 3. In this embodiment, the connector 301 and the connecting bellows 3 are integrally formed by injection molding. A first step groove 302 is formed at one end of the connector 301 close to the connecting bellows 3. An annular clamping groove 303 is formed at one end of the connector 301 close to the connecting bellows 3. A second step groove 304 is formed at the end of the connector 301 away from the connecting bellows 3. A sealing ring 6 is sleeved on the second step groove 304. Installation grooves 101 are formed on the inner walls at both ends of the housing 1. The connector 301 is inserted into the installation groove 101. The sealing ring 6 is pressed between the second step groove 304 and the annular seat 202. One end of the connector 301 close to the annular seat 202 extends into the cylindrical tube 201. Limit holes 102 are formed at both ends of the housing 1. Both ends of the U-shaped limit clip 4 can pass through the limit holes 102. The part of the U-shaped limit clip 4 extending into the housing 1 is stuck in the annular clamping groove 303. The first step groove 302 abuts against the installation groove 101.

[0036] By adopting the above technical solution, when installing the sound insulation component 2, the sound insulation component 2 is inserted into the housing 1, and then the two connectors 301 are respectively inserted into the installation grooves 101 in the air inlet and the air outlet, so that the sound insulation component 2 is clamped tightly in the housing 1 by the two connectors 301. Then, the U-shaped limit clip 4 is penetrated through the housing 1 from the limit hole 102, and the part of the U-shaped limit clip 4 located inside the housing 1 is stuck in the annular clamping groove 303, so that the connector 301 is firmly fixed on the housing 1. Through the arranged first step groove 302 and the installation groove 101, the positioning function can be realized. That is to say, when the first step groove 302 abuts against the installation groove 101, at this time, the annular clamping groove 303 is communicated with the limit hole 102.

[0037] Specifically, in order to prevent the U-shaped limit clip 4 from easily falling off from the limit hole 102, an elastic connecting piece 501 is fixedly connected to the outer wall of the housing 1. A C-shaped elastic clamping sleeve 5 is fixedly connected to the movable end of the elastic connecting piece 501. The U-shaped limit clip 4 can be clamped into the C-shaped elastic clamping sleeve 5. When it is necessary to remove the U-shaped limit clip 4 from the housing 1, only need to pull out the U-shaped limit clip 4 from the C-shaped elastic clamping sleeve 5, and then press down the C-shaped elastic clamping sleeve 5, so that the U-shaped limit clip 4 can be smoothly pulled in the direction away from the housing 1, and then pull the U-shaped limit clip 4 in the direction away from the housing 1.

[0038] Specifically, a plurality of annular binding grooves 103 for binding in the automobile engine compartment are formed on the outer wall of the housing 1. Through the arranged annular binding grooves 103, the housing 1 can be fixed on the brackets and pipelines in the engine compartment by nylon ties without punching holes, and individuals can assemble it, and it is suitable for most vehicle models.

[0039] In this embodiment, the shell 1, the C-shaped elastic sleeve 5, the elastic connecting piece 501, the cylindrical tube 201, the annular seat 202, the strip partition 203 and the annular partition 204 are all made of plastic, including but not limited to polypropylene plastic and polyethylene plastic. The cylindrical tube 201, the annular seat 202, the strip partition 203 and the annular partition 204 are integrally injection molded. The C-shaped elastic sleeve 5 and the elastic connecting piece 501 are integrally injection molded. The elastic connecting piece 501 is ultrasonically welded to the outer wall of the shell 1. The whole is made of plastic material, which makes the overall mass of the resonator light, and effectively reduces the inertial force caused by vibration, and has stronger stability.

[0040] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An automobile intake resonator, characterized in that: It includes a housing (1) with a hollow interior. An air inlet and an air outlet are respectively provided at both ends of the housing (1), and a sound-absorbing component (2) is arranged inside the housing (1).

2. The automobile intake resonator according to claim 1, characterized in that: The sound-absorbing component (2) includes a cylindrical tube (201) inserted inside the housing (1). Annular seats (202) are fixedly connected to both ends of the cylindrical tube (201). A sound-insulating felt (207) is wrapped between the two annular seats (202). The area surrounded by the inner wall of the sound-insulating felt (207), the outer wall of the cylindrical tube (201), and the two annular seats (202) forms a resonance cavity. A number of annular partitions (204) and strip partitions (203) are fixedly connected to the outside of the cylindrical tube (201). The strip partitions (203) and the annular partitions (204) divide the resonance cavity into several sound-absorbing cavities (205). The volume of the sound-absorbing cavities (205) gradually decreases from the air inlet to the air outlet. Sound-absorbing holes (206) communicating with the sound-absorbing cavities (205) are provided on the cylindrical tube (201).

3. The automobile intake resonator according to claim 2, characterized in that: Connecting bellows (3) are hermetically connected to the air inlet and the air outlet through disassembly and assembly components.

4. The automobile intake resonator according to claim 2, characterized in that: The outer wall of the sound-insulating felt (207) has an interference fit with the inner wall of the housing (1).

5. The automobile intake resonator according to claim 3, characterized in that: The disassembly and assembly component includes a connecting head (301) and a U-shaped limiting clip (4). The connecting head (301) is fixedly connected to one end of the connecting bellows (3). A first stepped groove (302) is provided at one end of the connecting head (301) close to the connecting bellows (3). An annular clamping groove (303) is provided at one end of the connecting head (301) close to the connecting bellows (3). A second stepped groove (304) is provided at the end of the connecting head (301) away from the connecting bellows (3). A sealing ring (6) is sleeved on the second stepped groove (304). Installation grooves (101) are provided on the inner walls at both ends of the housing (1). The connecting head (301) is inserted into the installation groove (101). The sealing ring (6) is pressed between the second stepped groove (304) and the annular seat (202). One end of the connecting head (301) close to the annular seat (202) extends into the cylindrical tube (201). Limiting holes (102) are provided at both ends of the housing (1). Both ends of the U-shaped limiting clip (4) can pass through the limiting holes (102). The part of the U-shaped limiting clip (4) extending into the housing (1) is stuck in the annular clamping groove (303). The first stepped groove (302) abuts against the installation groove (101).

6. The automobile intake resonator according to claim 5, characterized in that: The connecting head (301) and the connecting bellows (3) are integrally formed by injection molding.

7. The automobile intake resonator according to claim 6, characterized in that: An elastic connecting piece (501) is fixedly connected to the outer wall of the housing (1). A C-shaped elastic clamping sleeve (5) is fixedly connected to the movable end of the elastic connecting piece (501). The U-shaped limiting clip (4) can be clamped into the C-shaped elastic clamping sleeve (5).

8. The automobile intake resonator according to claim 7, characterized in that: The outer wall of the housing (1) is provided with a plurality of annular binding grooves (103) for binding in an engine compartment of an automobile.

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