CN215398952U - Maintenance apron and vehicle of making an uproar fall - Google Patents
Maintenance apron and vehicle of making an uproar fall Download PDFInfo
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- CN215398952U CN215398952U CN202120471825.7U CN202120471825U CN215398952U CN 215398952 U CN215398952 U CN 215398952U CN 202120471825 U CN202120471825 U CN 202120471825U CN 215398952 U CN215398952 U CN 215398952U
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- cover plate
- noise
- plate body
- silencing
- partition plates
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Abstract
The utility model relates to the technical field of vehicle maintenance cover plates, in particular to a noise reduction maintenance cover plate and a vehicle. The noise reduction maintenance cover plate comprises a cover plate body and a plurality of partition plates, wherein the cover plate body comprises a concave part, and a silencing cavity is arranged in the concave part; the partition plates are positioned in the silencing cavities and at least connected with the bottoms of the concave parts, and silencing chambers are formed among the partition plates, the silencing cavities and two adjacent partition plates. The concave part of the noise reduction maintenance cover plate can increase the strength of the cover plate body, the rigidity of the noise reduction maintenance cover plate is improved, and due to the fact that the silencing chambers are formed among the partition plates, the silencing chambers and the two adjacent partition plates, noise energy can be weakened in the silencing chambers through back-and-forth fluctuation after the noise enters the silencing chambers, the noise transmitted into a vehicle through the noise reduction maintenance cover plate is reduced, and the NVH quality of the whole vehicle is improved.
Description
Technical Field
The utility model relates to the technical field of vehicle maintenance cover plates, in particular to a noise reduction maintenance cover plate and a vehicle.
Background
With the development of science and technology and the continuous improvement of the living standard of people, people have higher and higher requirements on the quality of vehicles, and the characteristics of automobile noise, vibration and sound vibration roughness can directly influence the feeling of users. One of the core spare parts of new energy automobile is motor reducer, and motor reducer can produce noise problems such as magnetic pole whistle, gear engagement whistle in the course of the work, and its sound quality is sharp-pointed and harsh. The motor reducer is arranged outside the vehicle and positioned outside the floor, the floor is connected with the maintenance cover plate, and the maintenance cover plate is positioned right above the motor reducer and is the most direct position of the noise source. The floor and the maintenance cover plate jointly block the noise of the motor reducer, and the maintenance cover plate in the prior art has the problem of poor noise blocking capability.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a noise reduction maintenance cover plate to solve or partially solve the problem of poor noise blocking performance of the existing maintenance cover plate.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a noise reduction maintenance cover plate comprises a cover plate body and a plurality of partition plates, wherein the cover plate body comprises a concave part, and a silencing cavity is formed in the concave part;
the partition plates are positioned in the silencing cavities and at least connected with the bottoms of the concave parts, and silencing chambers are formed among the partition plates, the silencing cavities and two adjacent partition plates.
Further, a plurality of the partition plates are arranged in parallel.
Further, the distance between two adjacent partition plates is a partition plate interval, and the partition plate interval comprises at least one.
Further, a plurality of the partition boards are arranged in a row, and in the arrangement direction of the plurality of the partition boards, a partition board width is formed between two ends of each partition board, and the partition board width includes at least one.
Further, a plurality of the concave parts are arranged in a nesting mode, and the concave part opening of one concave part is located at the bottom of the other concave part in two adjacent concave parts.
Furthermore, the maintenance apron of making an uproar still includes two at least sealing strips, the sealing strip is wound the periphery setting of apron body, adjacent two enclose into the resonant cavity between the sealing strip, adjacent two be close to in the sealing strip of concave part includes a plurality of through-holes, the through-hole intercommunication the resonant cavity with apron body anechoic chamber, or the through-hole intercommunication is adjacent two the resonant cavity.
Further, the apron body still includes connecting portion, connecting portion wind the periphery setting of apron body, and be located the outside of sealing strip, connecting portion are used for being connected with the floor, the sealing strip is used for sealing the apron body with clearance between the floor.
Furthermore, the connecting part is used for being connected with a floor, and the cover plate body and the floor are structural members made of the same materials.
Compared with the prior art, the noise reduction maintenance cover plate has the following advantages:
according to the noise reduction maintenance cover plate, the concave part can increase the strength of the cover plate body, the rigidity of the noise reduction maintenance cover plate is improved, the noise elimination chamber is formed among the partition plates, the noise elimination chamber and the two adjacent partition plates, and after noise enters the noise elimination chamber, the noise can fluctuate back and forth in the noise elimination chamber to weaken noise energy, so that the noise transmitted to a vehicle through the noise reduction maintenance cover plate is reduced, and the NVH quality of the whole vehicle is improved. Therefore, the noise reduction maintenance cover plate has the advantages of high rigidity and strong noise reduction capability.
Another object of the present invention is to provide a vehicle to solve or partially solve the problem of poor noise insulation of the existing vehicle service cover.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a vehicle comprises a floor and the noise-reduction maintenance cover plate, wherein the floor comprises a maintenance through hole, the cover plate body is connected with the floor, and the maintenance through hole is covered.
The vehicle and the noise reduction maintenance cover plate have the same advantages compared with the prior art, and are not described in detail herein.
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 diagram of a perspective view of a noise reduction maintenance cover plate according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a front view of a noise reduction maintenance cover plate according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a rear view of a noise reduction maintenance cover plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a right side view of a noise reduction maintenance cover plate according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a top view of a noise reduction maintenance cover plate according to an embodiment of the present invention;
fig. 6 is an enlarged view of the perspective view a in fig. 3.
Description of reference numerals:
1-cover plate body; 11-a first recess; 12-a second recess; 13-a connecting part; 14-mounting holes;
2-a separator; 21-an anechoic chamber;
31-a first sealing strip; 32-a second sealing strip; 33-a resonant cavity; 34-through holes.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In addition, the front and rear mentioned in the embodiment of the utility model refer to the front and rear with respect to the forward direction of the vehicle.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 3, an embodiment of the present application provides a noise reduction maintenance cover plate, including a cover plate body 1 and a plurality of partition plates 2, where the cover plate body 1 includes a recess, and a sound-deadening cavity is in the recess; the partition plate 2 is positioned in the silencing cavity and is at least connected with the bottom of the concave part, and a silencing chamber 21 is formed between the partition plate 2 and the silencing cavity as well as between two adjacent partition plates 2.
Specifically, the side wall and the bottom of the concave portion enclose an anechoic chamber, and the partition board 2 is connected with the bottom of the concave portion, or the partition board 2 is connected with the bottom and the side wall of the concave portion at the same time.
The utility model provides a maintenance apron of making an uproar falls, the concave part can increase the intensity of apron body 1, promotes the rigidity of the maintenance apron of making an uproar falls, because baffle 2 forms anechoic chamber 21 between anechoic chamber and two adjacent baffles 2, after the noise got into anechoic chamber, can make a round trip the fluctuation in anechoic chamber 21 and weaken the noise energy, and then reduce the noise of passing through the maintenance apron of making an uproar and transmitting to the car in, improve whole car NVH quality. Therefore, the noise reduction maintenance cover plate has the advantages of high rigidity and strong noise reduction capability.
NVH refers to Noise, Vibration and Harshness (english acronym for Noise, Vibration, Harshness). This is a comprehensive measure of the quality of a vehicle's manufacture and gives the vehicle user the most immediate and surface experience.
The utility model provides a maintenance of making an uproar apron of falling is located motor reducer directly over, consequently, can reduce motor reducer's noise and pass through maintenance apron and transmit to the car in.
In one embodiment, the partition 2 is a rubber member.
The partition plates 2, the silencing cavities and the two adjacent partition plates 2 form the silencing chamber 21, noise energy is weakened by the fact that noise fluctuates back and forth in the silencing chamber 21, meanwhile, the rubber partition plates 2 can generate simple harmonic vibration under the driving of the noise energy, the rubber vibration reduction vibration converts the noise energy into heat, the noise energy is weakened and reduced, and the noise reduction effect of the noise reduction maintenance cover plate is good.
In an alternative embodiment, the partition 2 is a rubber partition 2, the rubber partition 2 being fixed to the service cover by vulcanization.
Vulcanization is also known as crosslinking and curing. Adding cross-linking assistant, such as vulcanizing agent and promoter, into rubber, and converting linear macro molecule into three-dimensional network structure under certain temperature and pressure.
Referring to fig. 3, in one embodiment, one end of the partition 2 is connected to the bottom of the recess.
In an alternative embodiment, one end of the partition 2 is connected to the bottom of the recess and the side walls of the partition 2 are connected to the side walls of the recess.
The specific connection mode of the partition board 2 and the cover plate body 1 is set according to the use requirement.
Referring to fig. 3, in one embodiment, a plurality of the separators 2 are arranged in parallel.
Baffle 2 parallel arrangement for the outward appearance of the maintenance apron of making an uproar is fallen is clean and tidy.
Referring to fig. 3, in an embodiment, a distance between two adjacent partition boards 2 is a partition board pitch, and the partition board pitch includes at least one.
The partition plate interval comprises at least one, so that the partition plate 2 forms the silencing chambers 21 with different volumes in the silencing cavity, and the purpose of weakening and reducing noise energy is achieved by matching the fluctuation characteristics and the noise energy characteristics of noise in the silencing chambers 21.
Referring to fig. 3, in an embodiment, a plurality of the partition plates 2 are arranged in a row, and a partition width between two ends of the partition plate 2 in an arrangement direction of the plurality of the partition plates 2 includes at least one.
The width of the partition board comprises at least one, so that the partition board 2 forms silencing chambers 21 with different volumes in the silencing cavity, and the aim of reducing noise energy is fulfilled.
Referring to fig. 1 to 5, in one embodiment, a plurality of the concave portions are nested, and the concave opening of one of the concave portions is located at the bottom of the other concave portion.
The plurality of concave parts can increase the strength of the cover plate body 1, improve the rigidity of the noise-reduction maintenance cover plate and reduce the sensitivity of the maintenance cover plate. In actual use, the number of the concave parts is required to meet the use requirement.
In an alternative embodiment, the plurality of concave portions are distributed on the cover plate body 1, or a combination of the concave portions distributed on the cover plate body 1 and nested arrangement may be adopted, and the concave portions may be arranged according to the use requirement.
Referring to fig. 1 to 5, the recess includes two recesses, namely a first recess 11 and a second recess 12, and the first recess 11 and the second recess 12 can reinforce the strength of the cover plate body 1. The first recess 11 and the second recess 12 may each be made by a stamping process.
Referring to fig. 4 and 5, the first recess 11 is formed obliquely with respect to the upper surface of the cap body 1 shown in fig. 5, and the second recess 12 is also formed obliquely with respect to the upper surface of the cap body 1 shown in fig. 5. The partition 2 is connected to the bottom of the second recess 12.
Referring to fig. 3 and 6, in an embodiment, the noise reduction maintenance cover plate further includes at least two sealing strips, the sealing strips are disposed around the periphery of the cover plate body 1, a resonant cavity 33 is defined between two adjacent sealing strips, the sealing strip near the concave portion in two adjacent sealing strips includes a plurality of through holes 34, and the through holes 34 communicate the resonant cavity 33 and the noise reduction cavity of the cover plate body 1, or the through holes 34 communicate two adjacent resonant cavities 33.
The sealing strip can seal the gap between the cover plate body 1 and the connecting part 13, and the sealing performance and the sound insulation capability of the noise reduction maintenance cover plate are improved. A resonant cavity 33 is formed by surrounding a gap between two adjacent sealing strips, noise enters the resonant cavity 33 after passing through the through hole 34, the resonant cavity 33 can weaken the noise, the noise transmission is further reduced, and the noise reduction maintenance cover plate has the advantage of strong noise blocking capability.
Referring to fig. 6, in an embodiment, the sealing strip includes two sealing strips, namely a first sealing strip 31 and a second sealing strip 32, the first sealing strip 31 is located on the inner side of the second sealing strip 32, a resonant cavity 33 is defined between the first sealing strip 31 and the second sealing strip 32, the first sealing strip 31 includes a through hole 34, the through hole 34 communicates with the resonant cavity 33 and the muffling cavity, and the resonant cavity 33 can further reduce noise transmission.
Referring to fig. 1 to 3, in an embodiment, the cover plate body 1 further includes a connecting portion 13, the connecting portion 13 is disposed around the periphery of the cover plate body 1 and located outside the sealing strip, the connecting portion 13 is used for being connected with a floor, and the sealing strip is used for sealing a gap between the cover plate body 1 and the floor.
Referring to fig. 3, the connecting portion 13 includes a mounting hole 14, and the cover plate body 1 is detachably connected to the connecting portion 13 through the mounting hole 14 and a fastener such as a bolt, so as to facilitate mounting and dismounting between the cover plate body 1 and the connecting portion 13.
The maintenance apron of making an uproar that falls in this application embodiment is connected with vehicle floor, and the maintenance apron of making an uproar that falls can fall and weaken the noise that transmits in the car, and then improves the NVH quality of whole car.
In practical use, the noise reduction maintenance cover plate is positioned on the floor position of the trunk of the vehicle and matched with the arrangement structure of the corresponding platform vehicle type.
In one embodiment, the cover plate body 1 and the floor are structural members made of the same material.
The resonant frequencies between the cover plate body and the floor plate which are made of the same material are the same. In practical use, apron body 1 and floor are the panel beating structure, and the resonant frequency on apron body 1 and floor is the same, and apron body 1 includes the concave part, and the concave part can reduce apron body 1's sensitivity to reduce panel beating common radiation noise.
The embodiment of the utility model also provides a vehicle, which particularly comprises a floor and the noise reduction maintenance cover plate, wherein the floor comprises a maintenance through hole, the cover plate body 1 is connected with the floor, and the maintenance through hole is sealed and covered.
Because the maintenance apron of making an uproar is fallen can reduce the noise and transmit in the car to reduce the interior noise of car, promote the NVH quality of whole car, improve user's satisfaction.
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 (9)
1. The noise-reduction maintenance cover plate is characterized by comprising a cover plate body (1) and a plurality of partition plates (2), wherein the cover plate body (1) comprises a concave part, and a silencing cavity is formed in the concave part;
the partition plates (2) are positioned in the silencing cavities and at least connected with the bottoms of the concave parts, and silencing chambers (21) are formed among the partition plates (2), the silencing cavities and two adjacent partition plates (2).
2. Noise reducing service cover plate according to claim 1, characterized in that a plurality of said partitions (2) are arranged in parallel.
3. Noise reducing service cover plate according to claim 1, characterized in that the distance between two adjacent baffles (2) is a baffle spacing, which comprises at least one.
4. Noise reduction service cover plate according to claim 1, characterized in that a plurality of said partitions (2) are arranged in a row, in the direction of arrangement of a plurality of said partitions (2) there being a partition width between the two ends of said partitions (2), said partition width comprising at least one.
5. The noise reducing service cover plate of claim 1, wherein a plurality of the recesses are nested, two adjacent ones of the recesses having a recess opening at a bottom of the other recess.
6. The noise reduction maintenance cover plate according to claim 1, further comprising at least two sealing strips, wherein the sealing strips are arranged around the periphery of the cover plate body (1), a resonant cavity (33) is defined between two adjacent sealing strips, the sealing strips in the two adjacent sealing strips, which are close to the concave portion, comprise a plurality of through holes (34), and the through holes (34) communicate the resonant cavity (33) with the noise reduction cavity of the cover plate body (1), or the through holes (34) communicate two adjacent resonant cavities (33).
7. Noise reducing service cover plate according to claim 6, characterized in that the cover plate body (1) further comprises a connecting portion (13), the connecting portion (13) being arranged around the periphery of the cover plate body (1) and outside the sealing strip, the connecting portion (13) being intended for connection with a floor, the sealing strip being intended for sealing a gap between the cover plate body (1) and the floor.
8. Noise reducing service cover plate according to claim 7, characterized in that the connection portion (13) is intended to be connected to a floor, the cover plate body (1) and the floor being of the same structural piece of material.
9. A vehicle, characterized in that it comprises a floor panel comprising a service through hole and a noise-reducing service cover panel according to any one of claims 1 to 8, the cover panel body (1) being connected to the floor panel, covering the service through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120471825.7U CN215398952U (en) | 2021-03-04 | 2021-03-04 | Maintenance apron and vehicle of making an uproar fall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120471825.7U CN215398952U (en) | 2021-03-04 | 2021-03-04 | Maintenance apron and vehicle of making an uproar fall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215398952U true CN215398952U (en) | 2022-01-04 |
Family
ID=79667810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120471825.7U Active CN215398952U (en) | 2021-03-04 | 2021-03-04 | Maintenance apron and vehicle of making an uproar fall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215398952U (en) |
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2021
- 2021-03-04 CN CN202120471825.7U patent/CN215398952U/en active Active
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