CN211082090U

CN211082090U - Automobile resonant cavity

Info

Publication number: CN211082090U
Application number: CN201921681947.8U
Authority: CN
Inventors: 许帅; 向福泉; 陈旭
Original assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Liankong Technologies Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-07-24
Anticipated expiration: 2029-10-09

Abstract

The utility model provides an automobile resonant cavity, including first casing and second casing, first casing and second casing interconnect form a cavity, and one in first casing and second casing is equipped with the cavity mouth of pipe that is linked together with the cavity, and the cavity mouth of pipe is used for communicateing to air cleaner. The utility model discloses a car resonant cavity occupation space is little, and simple structure.

Description

Automobile resonant cavity

Technical Field

The utility model relates to an automobile field especially relates to an automobile resonant cavity.

Background

With the increasing requirements of customers on the experience and various performances of automobile products, the NVH performance is regarded as one of the important performance indexes of automobiles which directly affect the experience satisfaction of customers, and is paid more and more attention. The NVH performance of an engine air inlet system is an important component of the NVH performance of a whole vehicle, the low-frequency noise occurrence frequency is high in the NVH problem of the engine air inlet system, the low-frequency noise is controlled by generally adopting a mode of installing a resonant cavity on an air filter, and the larger the volume of the resonant cavity is, the lower the controllable noise frequency is. However, the peripheral arrangement space of the air cleaner is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an occupation space is little, and simple structure's car resonant cavity.

The utility model provides an automobile resonant cavity, including first casing and second casing, first casing and second casing interconnect form a cavity, and one in first casing and second casing is equipped with the cavity mouth of pipe that is linked together with the cavity, and the cavity mouth of pipe is used for communicateing to air cleaner.

Furthermore, the first shell is formed into a flat plate shape, a circle of closed first groove is formed on the end surface of the first shell, a circle of closed first protrusion protrudes outwards from the end surface of the second shell, and the first protrusion is embedded into the first groove, so that the first shell and the second shell are connected with each other to form a cavity.

Furthermore, a circle of closed second groove located on the inner side of the first groove is formed in the end face of the first shell, a circle of closed second protrusion located on the inner side of the first protrusion protrudes outwards from the end face of the second shell, and the second protrusion is embedded into the second groove, so that the first shell and the second shell are connected with each other to form an annular cavity.

Furthermore, welding materials are filled in the first groove and the second groove, the first protrusion and the second protrusion are welding ribs, and the first protrusion and the second protrusion are embedded into the first groove and the second groove respectively and fixed through welding.

Further, the mouth end of the cavity orifice is connected to one end of a connecting pipe through a fastener, and the other end of the connecting pipe is used for communicating to an air filter.

Further, the outer surface of the cavity pipe orifice is provided with a limiting structure protruding outwards, and one end of the connecting pipe is abutted against the limiting structure so as to position the connecting pipe.

Further, the middle portion of the connection pipe is formed in a corrugated shape.

Furthermore, a circle of supporting steel ring is arranged on the inner surface of the cavity pipe opening along the circumferential direction of the cavity pipe opening.

Further, the second housing is provided with a first fixing leg, a second fixing leg, a third fixing leg and a fourth fixing leg having a certain height.

Because the utility model discloses a car resonant cavity includes first casing and second casing, first casing and second casing interconnect and form a cavity, and one in first casing and second casing is equipped with the cavity mouth of pipe that is linked together with the cavity, and the cavity mouth of pipe is used for communicating to air cleaner, the utility model discloses a car resonant cavity occupation space is little, and simple structure.

Drawings

Fig. 1 is a perspective structural view of an automotive resonant cavity according to an embodiment of the present invention.

Fig. 2 is a perspective view of another view angle of the resonant cavity of the present invention.

Fig. 3 is a cross-sectional view of an automotive resonator according to an embodiment of the present invention.

Fig. 4 is a perspective view of a first housing of the resonant cavity of the present invention.

Fig. 5 is a perspective view of a second housing of the resonant cavity of the present invention.

Fig. 6 is a perspective view of another view angle of the second housing of the resonant cavity of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 3, an automotive resonator according to an embodiment of the present invention includes a first housing 1 and a second housing 2. In the present embodiment, the first casing 1 is an upper casing, and the second casing 2 is a lower casing. The first housing 1 and the second housing 2 are connected to each other and form a cavity 91. One of the first casing 1 and the second casing 2 is provided with a cavity nozzle 16 communicated with the cavity, and the cavity nozzle 16 is communicated with an air outlet pipe of the air filter. In this embodiment, the chamber orifice 16 is provided in the second housing 2.

Referring to fig. 4, the first housing 1 is formed by a one-time injection molding process, and the first housing 1 is formed in a flat plate shape. The upper surface of the first shell 1 is provided with a shape, a color and a dermatoglyph for cabin decoration. The edge of the first shell 1 is provided with a process chamfer 25, so that the hand can be prevented from being scratched in assembly and disassembly. The lower surface of the first shell 1 is formed with a circle of closed first grooves 8 located on the outer side and a circle of closed second grooves 10 located on the inner side, and the first grooves 8 and the second grooves 10 form a zigzag structure. Welding materials are filled in the first groove 8 and the second groove 10, the first groove 8 and the second groove 10 are used for guaranteeing welding airtightness, and the welding materials are prevented from overflowing to cause welding defects.

The lower surface of the first housing 1 is provided with first cover ribs 9 and second cover ribs 11. A first overlay bead 9 is formed inside the first groove 8 and extends in the longitudinal direction. The second cover beads 11 are formed at the outer side of the first groove 8 in a criss-cross manner, and the second cover beads 11 extend to the edge of the first case 1. First top facing strengthening rib 9 and second top facing strengthening rib 11 are used for improving the panel mode, avoid first casing 1 and engine to produce resonance, and can promote the panel intensity of first casing 1, prevent that the top facing from warping.

Referring to fig. 5 and 6, a closed first protrusion 12 and a closed second protrusion 13 are protruded from the end surface of the second housing 2 close to the first housing 1. The first protrusion 12 and the second protrusion 13 are welding ribs and form a zigzag structure. The first protrusion 12 and the second protrusion 13 are respectively embedded in the first groove 8 and the second groove 10, and are fixed by welding, so that the first housing 1 and the second housing 2 are connected to each other and form an annular cavity 91. And a third cover surface reinforcing rib 14 extending longitudinally is arranged on the end surface of the second shell 2 close to the first shell 1, and the third cover surface reinforcing rib 14 is used for improving the strength and the mode of the shell panel and avoiding the resonance with an engine.

The chamber nozzle 16 is disposed on the sidewall of the second housing 2 and is in communication with the chamber 91. The outer surface of the cavity nozzle 16 is provided with a limiting structure 27 protruding outwards, the limiting structure 27 abuts against the connecting pipe 3, so that the connecting pipe 3 is positioned, and one end of the connecting pipe 3 is connected to the nozzle end of the cavity nozzle 16 through the second fastener 5. The other end of the connecting pipe 3 is connected to an air filter outlet pipe joint through a first fastener 4. The middle of the connection pipe 3 is formed in a corrugated shape for buffering the transmission of vibration. The inner surface of the cavity pipe orifice 16 is provided with a circle of supporting steel rings 15 along the circumferential direction, so that the cavity pipe orifice 16 is prevented from being heated and deformed during the use process to cause air leakage.

The end face of the second shell 2 far away from the first shell 1 is provided with a welding column 18, sound insulation cotton 7 is connected to the welding column 18 in an ultrasonic welding mode, and the sound insulation cotton 7 is used for isolating part of engine noise from being transmitted to the engine room. The lower portion of the second housing 2 is provided with a first fixing leg 17, a second fixing leg 19, a third fixing leg 20 and a fourth fixing leg 21 extending downward and having a certain height. The first fixed supporting leg 17, the second fixed supporting leg 19, the third fixed supporting leg 20 and the fourth fixed supporting leg 21 are distributed at intervals according to a certain distance, so that the resonant cavity is supported and fixed through four points and is uniformly stressed. The fixing legs are provided with a first leg reinforcing rib 22, a second leg reinforcing rib 23 and a third leg reinforcing rib 24 with certain wall thickness, so as to ensure that the fixing legs have enough strength to bear vibration transmitted by the engine. The first fixing leg 17, the second fixing leg 19, the third fixing leg 20 and the fourth fixing leg 21 are provided with shock absorbing pads 6 for damping vibration transmitted from the engine.

In conclusion, because the utility model discloses a car resonant cavity includes first casing 1 and second casing 2, first casing 1 and second casing 2 interconnect and form a cavity 91, and one in first casing 1 and second casing 2 is equipped with the cavity mouth of pipe 16 that is linked together with the cavity, and cavity mouth of pipe 16 is used for intercommunication to air cleaner, the utility model discloses a car resonant cavity occupation space is little, and simple structure.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The resonant cavity of the automobile is characterized by comprising a first shell (1) and a second shell (2), wherein the first shell (1) and the second shell (2) are connected with each other to form a cavity (91), one of the first shell (1) and the second shell (2) is provided with a cavity pipe orifice (16) communicated with the cavity, and the cavity pipe orifice (16) is communicated to an air filter.

2. The resonant cavity of claim 1, wherein the first shell (1) is formed in a flat plate shape, a closed first groove (8) is formed on an end surface of the first shell (1), a closed first protrusion (12) protrudes outwards from an end surface of the second shell (2), and the first protrusion (12) is embedded in the first groove (8), so that the first shell (1) and the second shell (2) are connected with each other and form the cavity (91).

3. The resonant cavity according to claim 2, characterized in that a closed second groove (10) is formed on the end face of the first shell (1) inside the first groove (8), and a closed second protrusion (13) is formed on the end face of the second shell (2) outside the first protrusion (12), wherein the second protrusion (13) is embedded in the second groove (10), so that the first shell (1) and the second shell (2) are connected to each other and form an annular cavity (91).

4. The resonant cavity according to claim 3, wherein the first groove (8) and the second groove (10) are filled with a welding material, the first protrusion (12) and the second protrusion (13) are welding ribs, and the first protrusion (12) and the second protrusion (13) are respectively embedded in the first groove (8) and the second groove (10) and fixed by welding.

5. The resonant cavity of claim 1, wherein the mouth end of the cavity mouth (16) is connected to one end of a connecting tube (3) by means of a fastener, the other end of the connecting tube (3) being intended to be connected to an air filter.

6. Automotive resonator cavity according to claim 5, characterized in that the outer surface of the cavity mouth (16) is provided with an outwardly protruding stop (27), against which stop (27) one end of the connection tube (3) abuts for positioning the connection tube (3).

7. Automotive resonator cavity according to claim 5, characterised in that the middle of the connecting tube (3) is corrugated.

8. Resonant cavity for vehicles according to claim 1, characterized in that the inner surface of the mouth (16) of the cavity is provided with a ring of support steel rings (15) along its circumference.

9. Automotive resonator cavity according to claim 1, characterized in that the second housing (2) is provided with a first (17), a second (19), a third (20) and a fourth (21) fixing leg having a certain height.