CN214273885U - Noise reduction device for air compressor of electric motor coach - Google Patents
Noise reduction device for air compressor of electric motor coach Download PDFInfo
- Publication number
- CN214273885U CN214273885U CN202022891735.1U CN202022891735U CN214273885U CN 214273885 U CN214273885 U CN 214273885U CN 202022891735 U CN202022891735 U CN 202022891735U CN 214273885 U CN214273885 U CN 214273885U
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- air compressor
- box body
- noise reduction
- hose
- electric motor
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- 230000009467 reduction Effects 0.000 title claims abstract description 33
- 238000013016 damping Methods 0.000 claims abstract description 7
- 230000003584 silencer Effects 0.000 claims description 22
- 239000000872 buffer Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses an electric motor coach air compressor noise reduction device, which comprises a box body assembly, an air compressor assembly, a road pipe noise reduction assembly and a support assembly; the air compressor assembly is arranged in the box body assembly and comprises a compressor and a hose, the compressor is fixed in the box body assembly, one end of the hose is connected to the compressor, and the other end of the hose penetrates through the box body assembly and then extends to the outside; the road pipe noise reduction assembly is wrapped on the hose; the supporting component is provided with a plurality of supporting components which are all arranged below the box body component. The utility model discloses at air compressor during operation, the noise that air compressor produced is kept apart by the first puigging in the box, avoids the noise to propagate outside the box, and air compressor drives horizontal and fore-and-aft vibration that the box produced, all is absorbed by packing element, first spring and second spring, has realized air compressor's damping, has reduced the noise, has improved the life of equipment.
Description
Technical Field
The utility model relates to an air compressor falls the technical field of making an uproar, especially relates to a device of making an uproar falls in [ electric ] motor coach air compressor.
Background
With the upgrading of consumption requirements and the popularization of new energy technology, the proportion occupied by the pure electric bus is larger and larger, and meanwhile, the requirement of a client on the riding comfort of the whole bus is higher and higher. Compared with the traditional passenger car, the noise source of the pure electric passenger car has obvious change, the main noise source is not an engine any more, and some electric and pneumatic noises become important factors influencing the NVH performance of the whole car, so that the control is necessary, and the riding comfort of the whole car is guaranteed.
Chinese utility model patent No. CN207916835U discloses an air supply system for electric passenger car, an electric air compressor, namely an electric air compressor assembly (inflating pump) is installed on the body of the passenger car, the air compressor assembly is a single system, the air compressor assembly is consolidated with a first high temperature resistant rubber hose assembly through a pipeline adapter assembly, a pipeline silencer is connected with the first high temperature resistant rubber hose assembly and a second high temperature resistant rubber hose assembly through the pipeline adapter assembly, the pipeline adapter assembly mainly plays a role in connection and sealing, the first high temperature resistant rubber hose assembly and the second high temperature resistant rubber hose can effectively attenuate the pulse vibration and noise of the pipeline airflow, the pipeline silencer mainly plays a role in attenuating the exhaust noise of the air compressor, the internal structure is designed according to the main sound frequency of the exhaust, a vibration attenuation rubber pad is arranged between the pipeline silencer and a pipeline silencer fixing bracket, the connecting bolts are adopted for consolidation, and the vibration-damping rubber mat is mainly used for damping the transmission of pipeline vibration to a frame or a vehicle body. The air compressor assembly is connected with the frame or the vehicle body by adopting a rubber vibration reduction suspension.
The device has the defects that the air compressor is only damped by the rubber damping suspension, and the noise generated by the operation of the air compressor is not processed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device of making an uproar falls in [ electric ] motor coach air compressor solves the problem of the untreated technique of noise that produces when air compressor itself moves among the prior art.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to an electric motor coach air compressor noise reduction device, which comprises a box body assembly, an air compressor assembly, a road pipe noise reduction assembly and a support assembly;
the air compressor assembly is arranged inside the box body assembly and comprises a compressor and a hose, the compressor is fixed inside the box body assembly, one end of the hose is connected to the compressor, and the other end of the hose penetrates through the box body assembly and then extends to the outside;
the road pipe noise reduction assembly is wrapped on the hose;
the supporting component is provided with a plurality of supporting components which are all arranged below the box body component.
Further, the box body assembly comprises a box body, a first sound insulation layer is arranged on the inner wall of the box body, air inlets are formed in the box body and the first sound insulation layer, a breathable layer is arranged on the air inlets, and the breathable layer is made of sound absorption cotton.
Furthermore, the air compressor component also comprises a silencer and an air outlet pipe, wherein the air inlet end of the silencer is connected with one end of the hose arranged outside, and the air outlet end of the silencer is connected with the air outlet pipe.
Further, the silencer is installed on the electric motor coach through the first support.
Furthermore, a vibration reduction rubber mat is arranged between the bottom of the first support and the electric motor coach.
Further, the subassembly of making an uproar falls in way pipe is including fixed pipe, the inside hollow and both ends opening of fixed pipe, fixed pipe box is established on the hose, from the lining to being equipped with buffer liquid layer and buffer layer outward in proper order between fixed pipe and the hose, the both ends of fixed pipe all are equipped with sealedly the sealing ring of buffer liquid layer, the inner wall of sealing ring with be equipped with the sealing washer between the hose, the outer lane of sealing washer is connected on the inner wall of sealing ring, the laminating of inner circle the hose.
Furthermore, a second sound insulation layer is arranged on the outer wall of the fixed pipe.
Furthermore, way pipe noise reduction assembly still includes the second support, the bottom of second support is fixed on [ electric ] motor coach, and the top runs through the second puigging and connects on the fixed pipe.
Furthermore, the number of the supporting assemblies is four, the four supporting assemblies are arranged opposite to four corners of the box body, each supporting assembly comprises a fixed plate, a fixed cylinder, a fixed rod and a fixed sleeve, the fixed cylinders are fixed on the fixed plates, the fixed plates are installed on the electric motor coach through bolts, rubber cylinders arranged close to the inner walls of the fixed cylinders are arranged inside the fixed cylinders, the opening directions of the fixed cylinders and the rubber cylinders are the same, and the opening ends of the fixed cylinders and the rubber cylinders are sealed through end covers; a fixed column is arranged at the bottom in the rubber cylinder, one end of the fixed rod is connected to the top of the fixed column, the other end of the fixed rod vertically penetrates through a through hole formed in the end cover upwards and then is inserted into the fixed sleeve from the bottom of the fixed sleeve, the top of the fixed sleeve is connected to the bottom of the box body, and the fixed sleeve is sleeved on the fixed rod in a sliding manner; the outer side of the fixed sleeve is sleeved with a first spring, one end of the first spring is abutted to the box body, and the other end of the first spring is abutted to the end cover.
Furthermore, a second spring is sleeved on the part, arranged in the rubber barrel, of the fixed rod, one end of the second spring abuts against the fixed column, and the other end of the second spring abuts against the end cover.
Compared with the prior art, the utility model discloses a beneficial technological effect:
at air compressor during operation, the noise that air compressor produced is kept apart by the first puigging in the box, avoids the noise to transmit outside the box, and air compressor drives horizontal and fore-and-aft vibration that the box produced, all is absorbed by packing element, first spring and second spring, has realized air compressor's damping, has reduced the noise, has improved the life of equipment.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic structural view of the noise reducer of the electric bus air compressor of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
description of reference numerals: 1. a case assembly; 11. a box body; 12. a first sound insulating layer; 13. a support assembly; 131. A fixing plate; 132. a fixed cylinder; 133. a rubber cylinder; 134. fixing a column; 135. fixing the rod; 136. an end cap; 137. fixing a sleeve; 138. a first spring; 139. a second spring; 14. a breathable layer; 2. an air compressor assembly; 21. a compressor; 22. a muffler; 23. a hose; 24. an air outlet pipe; 25. a first bracket; 26. A vibration damping rubber pad; 3. a road pipe noise reduction assembly; 31. a fixed tube; 32. a buffer layer; 33. a second sound insulating layer; 34. A buffer liquid layer; 35. a seal ring; 36. a seal ring; 37. a second support.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the noise reduction device for the air compressor of the electric motor coach comprises a box body assembly 1, an air compressor assembly 2, a road pipe noise reduction assembly 3 and a support assembly 13.
The box body assembly 1 comprises a box body 11, a first sound insulation layer 12 is arranged on the inner wall of the box body 11, air inlets are formed in the box body 11 and the first sound insulation layer 12, a breathable layer 14 is arranged on each air inlet, and the breathable layer 14 is made of sound-absorbing cotton.
The silencer 22 is a cylindrical pipeline silencer, the silencer 22 mainly functions to attenuate exhaust noise of the air compressor, the internal structure of the silencer is designed according to the main sound production frequency of exhaust, and the silencer 22 is an existing device. The silencer 22 is installed on the electric motor coach through the first support 25, a vibration reduction rubber mat 26 is arranged between the bottom of the first support 25 and the electric motor coach, and the vibration reduction rubber mat 26 is utilized to reduce vibration of the silencer 22.
3 parcels of way pipe noise reduction subassembly are in on the hose 23, way pipe noise reduction subassembly 3 is including fixed pipe 31, fixed pipe 31 is inside hollow and both ends opening, fixed pipe 31 cover is established on the hose 23, be equipped with buffer liquid layer 34 and buffer layer 32 from inside to outside in proper order between fixed pipe 31 and the hose 23, the both ends of fixed pipe 31 all are equipped with sealedly buffer liquid layer 34's sealing ring 35, sealing ring 35's inner wall with be equipped with sealing washer 36 between the hose 23, the outer lane of sealing washer 36 is connected on sealing ring 35's the inner wall, the inner circle laminating hose 23.
And a second sound insulation layer 33 is arranged on the outer wall of the fixed pipe 31. The road pipe noise reduction assembly 3 further comprises a second bracket 37, wherein the bottom of the second bracket 37 is fixed on the electric motor coach, and the top of the second bracket 37 penetrates through the second sound insulation layer 33 and is connected to the fixed pipe 31.
Four supporting components 13 are arranged, and the four supporting components 13 are arranged at four corners of the box body 11. The supporting assembly 13 includes a fixing plate 131, a fixing cylinder 132, a fixing rod 135 and a fixing sleeve 137, the fixing cylinder 132 is fixed on the fixing plate 131, and the fixing plate 131 is installed on the electric motor coach through a bolt. The fixed cylinder 132 is internally provided with a rubber cylinder 133 tightly attached to the inner wall of the fixed cylinder 132, the opening directions of the fixed cylinder 132 and the rubber cylinder 133 are the same, and the opening ends of the fixed cylinder 132 and the rubber cylinder 133 are sealed by an end cover 136. A fixing column 134 is arranged at the bottom inside the rubber cylinder 133, one end of the fixing rod 135 is connected to the top of the fixing column 134, the other end of the fixing rod 135 vertically penetrates through a through hole formed in the end cover 136 upwards and then is inserted into the fixing rod from the bottom of the fixing sleeve 137, the top of the fixing sleeve 137 is connected to the bottom of the box body 11, and the fixing sleeve 137 is sleeved on the fixing rod 135 in a sliding manner. The lateral vibration generated from the case 11 is transmitted to the fixing post 134 through the fixing sleeve 137 and the fixing rod 135, and the lateral vibration is absorbed by the rubber cylinder 133. A first spring 138 is sleeved outside the fixing sleeve 137, one end of the first spring 138 abuts against the box body 11, and the other end of the first spring 138 abuts against the end cover 136. A second spring 139 is sleeved on a part of the fixing rod 135, which is arranged in the rubber tube 133, one end of the second spring 139 abuts against the fixing column 134, and the other end abuts against the end cover 136. The longitudinal vibration generated by the box body 11 is buffered and offset absorbed by the first spring 138 and the second spring 139 through the up-and-down sliding of the fixing sleeve 137 on the fixing column 135.
The working principle of the utility model is as follows:
when the air compressor 21 works, the air compressor 21 pumps outside air into the hose 23, the hose 23 swings and deforms under the action of pulse airflow, vibration is absorbed through the deformation and the swing of the hose 23 to reduce vibration and noise, so that the start pulse noise of the air compressor 21 and the transmission of pipeline vibration to a frame are attenuated, the hose 23 is restrained through the fixing pipe 31 to avoid colliding with other parts in the electric motor coach in the process of hose deformation and swinging, the buffer layer 32 is arranged to play a role of buffering when the hose 23 collides with the inner wall of the fixing pipe 31 to avoid generating larger sound, the noise generated in the fixing pipe 31 can be prevented from being transmitted outwards through the second sound insulation layer 33, the buffer liquid layer 34 is arranged to drive the buffer liquid to move in the deformation and swing processes of the hose 23 in the fixing pipe 31, and a large amount of vibration is consumed in the process of driving the buffer liquid by the hose 23, and the hose 23 pushes the buffer solution to avoid abnormal sound, so that the force of the hose 23 impacting the inner wall of the fixed pipe 31 can be reduced.
Air enters the silencer 22 through the hose 23, the silencer 22 can attenuate noise of the air in the hose 23, and the air enters the air outlet pipe 24 after passing through the silencer 22 and enters a brake system of the electric motor coach through the air outlet pipe 24.
Meanwhile, the noise generated by the air compressor 21 is isolated by the first sound insulation layer 12 in the box body 11, the noise is prevented from being transmitted to the outside of the box body 11, the air compressor 21 can also generate vibration during working, the air compressor 21 drives the box body 11 to vibrate, the box body 11 applies transverse and longitudinal vibration to the supporting component 13, the transverse vibration applied to the supporting component 13 by the box body 11 is absorbed by the rubber cylinder, the longitudinal vibration generated by the box body 11 is absorbed by the first spring 138 and the second spring 139, and the vibration reduction of the air compressor 21 is realized.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a device of making an uproar falls in [ electric ] motor coach air compressor which characterized in that: comprises a box body component (1), an air compressor component (2), a road pipe noise reduction component (3) and a supporting component (13);
the air compressor assembly (2) is arranged inside the box body assembly (1), the air compressor assembly (2) comprises a compressor (21) and a hose (23), the compressor (21) is fixed inside the box body assembly (1), one end of the hose (23) is connected to the compressor (21), and the other end of the hose penetrates through the box body assembly (1) and then extends to the outside;
the road pipe noise reduction assembly (3) is wrapped on the hose (23);
the supporting component (13) is provided with a plurality of supporting components which are all arranged below the box body component (1).
2. The electric motor coach air compressor noise reduction device according to claim 1, wherein: the box body assembly (1) comprises a box body (11), a first sound insulation layer (12) is arranged on the inner wall of the box body (11), an air inlet is formed in the box body (11) and the first sound insulation layer (12), a breathable layer (14) is arranged on the air inlet, and the breathable layer (14) is made of sound absorption cotton.
3. The electric motor coach air compressor noise reduction device of claim 2, wherein: the air compressor component (2) further comprises a silencer (22) and an air outlet pipe (24), wherein the air inlet end of the silencer (22) is connected with one end, outside, of the hose (23), and the air outlet end of the silencer is connected with the air outlet pipe (24).
4. The electric motor coach air compressor noise reduction device according to claim 3, wherein: the silencer (22) is installed on the electric motor coach through a first bracket (25).
5. The electric motor coach air compressor noise reduction device according to claim 4, wherein: and a vibration damping rubber mat (26) is arranged between the bottom of the first bracket (25) and the electric motor coach.
6. The electric motor coach air compressor noise reduction device of claim 5, wherein: road pipe noise reduction assembly (3) are including fixed pipe (31), fixed pipe (31) inside hollow and both ends opening, fixed pipe (31) cover is established on hose (23), from interior to exterior being equipped with buffer liquid layer (34) and buffer layer (32) in proper order between fixed pipe (31) and hose (23), the both ends of fixed pipe (31) all are equipped with sealedly seal ring (35) of buffer liquid layer (34), the inner wall of seal ring (35) with be equipped with sealing washer (36) between hose (23), the outer lane of sealing washer (36) is connected on the inner wall of sealing ring (35), the inner circle laminating hose (23).
7. The electric motor coach air compressor noise reduction device according to claim 6, wherein: and a second sound insulation layer (33) is arranged on the outer wall of the fixed pipe (31).
8. The electric motor coach air compressor noise reduction device of claim 7, wherein: the road pipe noise reduction assembly (3) further comprises a second support (37), the bottom of the second support (37) is fixed on the electric motor coach, and the top of the second support (37) penetrates through the second sound insulation layer (33) and is connected to the fixed pipe (31).
9. The electric motor coach air compressor noise reduction device of claim 8, wherein: the four supporting components (13) are arranged at four corners of the box body (11), the four supporting components (13) are arranged relative to the four corners of the box body (11), each supporting component (13) comprises a fixing plate (131), a fixing cylinder (132), a fixing rod (135) and a fixing sleeve (137), the fixing cylinder (132) is fixed on the fixing plate (131), the fixing plate (131) is installed on the electric motor coach through bolts, a rubber cylinder (133) tightly attached to the inner wall of the fixing cylinder (132) is arranged inside the fixing cylinder (132), the opening directions of the fixing cylinder (132) and the rubber cylinder (133) are the same, and the opening ends of the fixing cylinder (132) and the rubber cylinder (133) are sealed through end covers (136); a fixing column (134) is arranged at the bottom in the rubber cylinder (133), one end of a fixing rod (135) is connected to the top of the fixing column (134), the other end of the fixing rod (135) vertically penetrates through a through hole formed in the end cover (136) upwards and then is inserted into the fixing rod (137) from the bottom of the fixing sleeve (137), the top of the fixing sleeve (137) is connected to the bottom of the box body (11), and the fixing sleeve (137) is sleeved on the fixing rod (135) in a sliding mode; the outer side of the fixed sleeve (137) is sleeved with a first spring (138), one end of the first spring (138) abuts against the box body (11), and the other end of the first spring (138) abuts against the end cover (136).
10. The electric motor coach air compressor noise reduction device of claim 9, wherein: a second spring (139) is sleeved on the part, arranged in the rubber barrel (133), of the fixing rod (135), one end of the second spring (139) abuts against the fixing column (134), and the other end of the second spring (139) abuts against the end cover (136).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891735.1U CN214273885U (en) | 2020-12-03 | 2020-12-03 | Noise reduction device for air compressor of electric motor coach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891735.1U CN214273885U (en) | 2020-12-03 | 2020-12-03 | Noise reduction device for air compressor of electric motor coach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214273885U true CN214273885U (en) | 2021-09-24 |
Family
ID=77779505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022891735.1U Expired - Fee Related CN214273885U (en) | 2020-12-03 | 2020-12-03 | Noise reduction device for air compressor of electric motor coach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214273885U (en) |
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2020
- 2020-12-03 CN CN202022891735.1U patent/CN214273885U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210924 |