CN215552968U - Sound insulation structure and vehicle - Google Patents
Sound insulation structure and vehicle Download PDFInfo
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- CN215552968U CN215552968U CN202121392648.XU CN202121392648U CN215552968U CN 215552968 U CN215552968 U CN 215552968U CN 202121392648 U CN202121392648 U CN 202121392648U CN 215552968 U CN215552968 U CN 215552968U
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Abstract
The utility model provides a sound insulation structure and a vehicle, wherein the sound insulation structure comprises a structure main body, a sound insulation cavity is constructed in the structure main body, a plurality of first sound insulation columns are arranged in the sound insulation cavity, and the first sound insulation columns are provided with connecting ends connected with the inner wall of the sound insulation cavity and free ends extending into the sound insulation cavity. The sound insulation structure can attenuate the noise fluctuation energy and has a good sound insulation effect.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a sound insulation structure, and meanwhile, the utility model also relates to a vehicle with the sound insulation structure.
Background
With the development and growth of the vehicle market and the continuous development and maturity of vehicle technology, the requirement of consumers on the driving comfort of vehicles is higher and higher. In the existing electric vehicle, because the motor replaces an engine, the noise in the vehicle is greatly reduced, and road noise, wind noise, motor noise, speed reducer noise and the like become main noise sources of the electric vehicle, and the use quality of the electric vehicle is also influenced.
For the structural design of the whole vehicle, the vehicle body floor with a large area is very easy to generate Vibration Noise, and particularly, a battery pack needs to be arranged in an electric vehicle, so that a gap generally exists between the battery pack and the vehicle body floor, and Noise enters the vehicle through the gap, so that the NVH (Noise, Vibration, Harshness) performance and the use quality of the vehicle are affected.
However, in the existing electric vehicle, in order to further reduce the noise influence between the battery pack and the vehicle body floor, a sound insulation structure, such as a sound insulation pad, is designed between the battery pack and the vehicle body floor, but the sound insulation structure is insufficient, the sound insulation or noise reduction effect is not good, a good sound insulation effect is not achieved, and the problem of noise between the battery pack and the vehicle body floor can not be well solved.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a sound insulation structure, which can attenuate noise and has a good sound insulation effect.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a sound insulating structure, comprising:
a structural body having an acoustic chamber configured therein;
the first sound insulation column body is arranged in the sound insulation cavity and provided with a connecting end connected with the inner wall of the sound insulation cavity and a free end extending into the sound insulation cavity.
Furthermore, the width of the cross section of the first sound insulation column is reduced from the middle to the two ends; and two ends of the cross section of the first sound insulation column body respectively form the connecting end and the free end.
Further, the cross section of the first sound insulation column is oval.
Furthermore, the two opposite inner walls of the sound insulation cavity are respectively provided with the first sound insulation column body; the first sound insulation columns on the inner walls are arranged at intervals; the first sound insulation columns on the two inner walls are arranged in a staggered mode.
Furthermore, the cross section area of the first sound insulation column on one of the inner walls is smaller than that of the first sound insulation column on the other inner wall.
Further, nitrogen or inert gas is filled in the sound insulation cavity.
Further, the sound insulation structure further comprises a structure appendage; the structure attachment is fixedly connected to the structure main body, and a connecting part is arranged on the structure attachment; the connecting portion is used for connecting the sound insulation structure and an external member.
Furthermore, the two opposite ends of the structure main body are provided with the structure attachments; a cavity communicated with the sound insulation cavity is formed in the structure appendage; the connecting part comprises clamping structures which are respectively formed on two sides of the structure appendage.
Furthermore, a plurality of second sound insulation columns are arranged in the cavity; the width of the cross section of the second sound insulation column is reduced from the middle to the two ends; one end of the cross section of the second sound insulation column body is connected to the inner wall of the cavity.
Compared with the prior art, the utility model has the following advantages:
according to the sound insulation structure, the sound insulation cavity is arranged in the structure main body, so that the noise fluctuation energy can be preliminarily attenuated, meanwhile, the first sound insulation columns are arranged in the sound insulation cavity, and can form intermittent fluctuation when the noise fluctuation energy is excited, so that the noise fluctuation energy can be further attenuated, and a good sound insulation effect can be achieved.
Another object of the present invention is to provide a vehicle, wherein the vehicle is provided with the sound insulation structure, and the sound insulation structure is clamped between a vehicle body floor and a battery pack in the vehicle.
According to the vehicle provided by the utility model, the sound insulation structure is configured, so that an effective sound insulation effect can be generated on the battery pack and the floor of the vehicle body, the problem of high noise in the vehicle caused by the fact that noise fluctuation energy enters the vehicle through a gap between the battery pack and the floor of the vehicle body is avoided, and the NVH performance and the use quality of the vehicle can be effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural view of a sound insulation structure according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a sound insulation structure according to a first embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
description of reference numerals:
1. a structural body; 101. an acoustic chamber; 102. a first sound-insulating column; 103. a right end edge;
2. a structural appendage; 201. a left side; 202. a cavity; 203. a second sound-insulating column; 204. a first card edge body; 205. and a second card edge body.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element 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 invention.
In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
The embodiment relates to a sound insulation structure, as shown in fig. 1 and 2, in an integral structure, the sound insulation structure comprises a structure main body 1, a sound insulation cavity 101 is constructed in the structure main body 1, and a plurality of first sound insulation columns 102 are also arranged in the sound insulation cavity 101. Each first sound-insulating cylinder 102 also has a connecting end connected to the inner wall of the sound-insulating chamber 101 and a free end extending into the sound-insulating chamber 101.
The sound insulation structure of this embodiment can carry out preliminary decay to noise fluctuation energy through sound insulation chamber 101, meanwhile, utilizes the first sound insulation cylinder 102 that sets up in sound insulation chamber 101, and it also can be when the excitation of noise fluctuation energy for first sound insulation cylinder 102 forms intermittent type and fluctuates, can also carry out further decay to noise fluctuation energy from this, and then can make the sound insulation structure have better sound insulation effect.
Based on the above general description, as a preferred embodiment, as shown in fig. 2, each first sound-insulating column 102 in the sound-insulating cavity 101 is also a strip-shaped structure, and in a specific design, the cross section of each first sound-insulating column 102 also decreases from the middle to two ends, and meanwhile, two ends of the cross section of each first sound-insulating column 102 also respectively form the above-mentioned connecting end connected with the inner wall of the sound-insulating cavity 101 and the free end extending into the sound-insulating cavity 101.
By making the width of the cross section of the first sound insulation column 102 large in the middle and small at the two ends, the noise fluctuation energy can be better attenuated, so that a better noise reduction and sound insulation effect is achieved. In practical implementation, the cross section of each first sound-proof cylinder 102 may be preferably provided with an oval shape, for example. Alternatively, rather than being oval, the cross-section of first sound-insulating cylinder 102 may be designed to have a shape that is wider in the middle and narrower toward the ends.
In addition, in the specific implementation, as a further preferred embodiment, the sound insulation chamber 101 may be filled with nitrogen gas or inert gas. The nitrogen or inert gas has the characteristics of sound insulation, heat insulation, flame resistance, good stability and the like, can improve the sound insulation performance of the sound insulation structure, and can prevent fire disasters. In actual use, the sound insulation chamber 101 of the present embodiment is preferably filled with nitrogen gas. When an inert gas is used, for example, helium, argon, or the like can be used in a large amount.
In this embodiment, as shown in fig. 2, in the sound-proof cavity 101, two opposite inner walls of the sound-proof cavity 101 are respectively provided with a first sound-proof column 102, and the first sound-proof columns 102 on the inner walls are a plurality of columns arranged at intervals. Meanwhile, as a preferred embodiment, the first sound-proof columns 102 on the two inner walls are also arranged in a staggered manner. In this case, even when the excitation is performed with noise fluctuation energy, the noise fluctuation energy can be more effectively attenuated by the internal friction of the nitrogen gas, the friction between the nitrogen gas and the first sound-insulating cylinders 102, and the meandering flow of the nitrogen gas in the offset space formed between the first sound-insulating cylinders 102.
In addition, it should be further noted that, when the sound insulation structure of this embodiment is impacted, and the first sound insulation columns 102 arranged in a staggered manner are compressed with each other, the impact energy can be attenuated by the damping effect, so that the staggered space changes, the internal friction of nitrogen, the friction between nitrogen and the first sound insulation columns 102, and the zigzag flow of nitrogen in the staggered spaces can be further improved, and therefore the attenuation effect on the noise fluctuation energy can be better improved.
In the present embodiment, on the basis that the first sound-insulating columns 102 are respectively provided on two opposite inner walls, as a preferred embodiment, the cross-sectional area of the first sound-insulating column 102 on one inner wall is also smaller than that of the first sound-insulating column 102 on the other inner wall. At this time, through the difference in cross-sectional size between the first sound insulation cylinders 102 on the inner walls of the two sides, the difference of each staggered space can be improved, so that the zigzag flow effect of nitrogen is better, and the attenuation effect of the main structure body 1 on noise fluctuation energy can be further improved.
While still in the state shown in fig. 2, in particular, this embodiment also makes the cross-sectional area of first sound-insulating cylinder 102 on the upper inner wall smaller than the cross-sectional area of first sound-insulating cylinder 102 on the lower inner wall. Of course, according to practical application, the cross-sectional area of first sound-proof column 102 on the lower inner wall is set to be smaller than that of first sound-proof column 102 on the upper inner wall, which can achieve similar use effect, and this embodiment is not limited to this.
In this embodiment, in addition to the main structure body described above, the sound insulation structure further includes a structure attachment 2 as a preferred embodiment. The structure appendage 2 is fixedly connected to the structure main body 1, and a connecting part is arranged on the structure appendage 2 and used for connecting the sound insulation structure and an external component. In practical implementation, the connecting portion also includes a snap structure formed on each of the two sides of the structure-attached body 2.
At this time, the structure design of the clamping structure may adopt a conventional design in the art, and as an exemplary structure, as shown in fig. 3, taking the clamping structure on the lower side of the structure appendage 2 as an example, the clamping structure is specifically composed of a first clamping edge body 204 and a second clamping edge body 205 with sharp ends, which are oppositely arranged on the left and right sides of the structure appendage 2. The first clamping edge body 204 and the second clamping edge body 205 are made of the same material as the structural attachment 2, and are integrally formed on the structural attachment 2, and a clamping space for clamping is formed between the first clamping edge body 204 and the second clamping edge body 205.
In this embodiment, the first clamping edge body 204 is also smaller than the second clamping edge body 205 in structure, so that when the clamping structure is used, one side of the external component can be abutted against the second clamping edge body 205, and the first clamping edge body 204 and the second clamping edge body 205 are opened by utilizing the elasticity of the first clamping edge body 204 and the second clamping edge body 205, so that one side of the external component is inserted into the clamping space. At this time, the first clamping body 204 and the second clamping body 205 form a clamping force to the exterior member to achieve the connection between the sound insulation structure and the exterior member.
In the present embodiment, as an exemplary embodiment, the structural attachment 2 is provided at both opposite ends of the structural main body 1, and a cavity 202 communicating with the sound insulation cavity 101 is also formed in the structural attachment 2. By communicating the cavity 202 with the sound-proof cavity 101, the filled nitrogen gas can flow between the sound-proof cavity 101 and the cavity 202, and thus the internal friction of the nitrogen gas can be promoted, and the attenuation effect on the noise fluctuation energy can be further improved.
Taking the structure shown in fig. 3 as an example, the left side 201 of the structural appendage 2 of the present embodiment is attached to the right side 103 of the structural main body 1, and both of them are provided with openings, so as to form the communication between the cavity 202 and the sound insulation cavity 101. The connection form between the left end edge of the main structure body 1 and the other end structure appendage 2 may be the same as that described above.
In order to improve the attenuation effect of the structural appendage 2 on the noise fluctuation energy, as shown in fig. 2 and 3, a plurality of second sound-insulating columns 203 are also arranged in the cavity 202. The cross section of the second sound-proof column 203 is also reduced from the middle to the two ends, and preferably, the cross section of the second sound-proof column 203 can also be oval, and meanwhile, one end of the cross section of the second sound-proof column 203 is connected to the inner wall of the cavity 202.
In this embodiment, the cross section of the second sound-insulating column 203 is disposed in an elliptical shape, which has the same disposing effect as the first sound-insulating column 102 having the same elliptical cross section, and will not be described herein again.
In addition, it should be noted that the main structure body 1 and the auxiliary structure body 2 of the present embodiment are made of an elastic material, and in a specific implementation, the elastic material may be rubber, and as a preferred implementation form, the rubber may be flame retardant rubber with flame retardant property, so that the main structure body 1 and the auxiliary structure body 2 are both made of flame retardant rubber.
Besides being made of rubber, especially flame retardant rubber, the main structure body 1 and the auxiliary structure body 2 of the present embodiment can be made of other suitable elastic materials, which is not limited.
The sound insulation structure of this embodiment can carry out preliminary decay to noise fluctuation energy through set up sound insulation chamber 101 in main structure body 1, simultaneously, sets up a plurality of first sound insulation cylinders 102 in sound insulation chamber 101 to set up each first sound insulation cylinder 102's cross section and reduce to both ends width by the centre, also can be when noise fluctuation energy is aroused, make first sound insulation cylinder 102 form intermittent type and fluctuate and carry out further decay to noise fluctuation energy, thereby can have better sound insulation effect.
Example two
The present embodiment relates to a vehicle that is provided with a sound insulating structure as in the first embodiment, and in the vehicle, the sound insulating structure is also specifically interposed between a vehicle body floor and a battery pack in the vehicle.
At this time, the vehicle of the embodiment is also a new energy automobile, and generally, the battery pack is located below the vehicle body floor, and the sound insulation structure is connected to the battery pack and the vehicle body floor through the structural attachments 2 at the two ends of the sound insulation structure, respectively, and the vehicle body floor and the battery pack constitute the external member described in the first embodiment.
The vehicle of the embodiment can form the sound insulation and absorption structure on the battery pack and the vehicle body floor by configuring the sound insulation structure in the first embodiment, so that the problem of high noise in the vehicle caused by the fact that noise fluctuation energy enters the vehicle through a gap between the battery pack and the vehicle body floor is avoided, and the NVH performance and the use quality of the vehicle can be effectively improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A sound insulating structure, characterized in that it comprises:
a structural body (1), an acoustic chamber (101) being configured within the structural body (1);
the first sound insulation column (102) is arranged in the sound insulation cavity (101), and the first sound insulation column (102) is provided with a connecting end connected with the inner wall of the sound insulation cavity (101) and a free end extending into the sound insulation cavity (101).
2. Sound insulating structure according to claim 1,
the cross section of the first sound insulation column (102) is reduced from the middle to the two ends;
the two ends of the cross section of the first sound insulation column (102) respectively form the connecting end and the free end.
3. A sound-insulating structure according to claim 2,
the cross section of the first sound insulation column (102) is oval.
4. A sound-insulating structure according to claim 2,
the two opposite inner walls of the sound insulation cavity (101) are respectively provided with the first sound insulation column (102);
the first sound insulation columns (102) on the inner walls are arranged at intervals;
the first sound insulation columns (102) on the two inner walls are arranged in a staggered mode.
5. A sound-insulating structure according to claim 4,
the cross-sectional area of the first sound-proof column (102) on one of the inner walls is smaller than that of the first sound-proof column (102) on the other inner wall.
6. Sound insulating structure according to claim 1,
and nitrogen or inert gas is filled in the sound insulation cavity (101).
7. Sound insulating structure according to any one of claims 1 to 6,
the sound insulation structure further comprises a structural appendage (2);
the structure attachment body (2) is fixedly connected to the structure main body (1), and a connecting part is arranged on the structure attachment body (2);
the connecting portion is used for connecting the sound insulation structure and an external member.
8. A sound-insulating structure according to claim 7,
the two opposite ends of the structure main body (1) are provided with the structure appendages (2);
a cavity (202) communicated with the sound insulation cavity (101) is formed in the structure appendage (2);
the connecting part comprises clamping structures which are respectively formed on two sides of the structure appendage (2).
9. A sound-insulating structure according to claim 8,
a plurality of second sound insulation columns (203) are arranged in the cavity (202);
the cross section of the second sound insulation column (203) is reduced from the middle to the two ends;
one end of the cross section of the second sound insulation column (203) is connected to the inner wall of the cavity (202).
10. A vehicle characterized in that the vehicle is provided with the sound insulation structure according to any one of claims 1 to 9, and the sound insulation structure is interposed between a vehicle body floor and a battery pack in the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121392648.XU CN215552968U (en) | 2021-06-22 | 2021-06-22 | Sound insulation structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121392648.XU CN215552968U (en) | 2021-06-22 | 2021-06-22 | Sound insulation structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215552968U true CN215552968U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121392648.XU Active CN215552968U (en) | 2021-06-22 | 2021-06-22 | Sound insulation structure and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215552968U (en) |
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2021
- 2021-06-22 CN CN202121392648.XU patent/CN215552968U/en active Active
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