CN202707195U - Auxiliary silencer for range extended type electric automobile - Google Patents
Auxiliary silencer for range extended type electric automobile Download PDFInfo
- Publication number
- CN202707195U CN202707195U CN 201220339274 CN201220339274U CN202707195U CN 202707195 U CN202707195 U CN 202707195U CN 201220339274 CN201220339274 CN 201220339274 CN 201220339274 U CN201220339274 U CN 201220339274U CN 202707195 U CN202707195 U CN 202707195U
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- CN
- China
- Prior art keywords
- honeycomb duct
- air inlet
- silencer
- anger
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000003584 silencer Effects 0.000 title abstract 11
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 230000009467 reduction Effects 0.000 claims description 11
- 230000030279 gene silencing Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to an auxiliary silencer for a range extended type electric automobile. An interior of a shell is separated into a front cavity, a middle cavity and a rear cavity by a front separating plate and a rear separating plate in a silencer shell, wherein an air inlet guiding pipe and an air outlet guiding pipe are located in the shell; one ports of the two pipes are respectively extended out of a front end cover; the air inlet guiding pipe passes through the other port of the front separating plate and is located on the rear separating plate; the air outlet guiding pipe passes through the other port of the front separating plate and extends into the rear cavity; small air holes are uniformly distributed on a pipe wall of the air inlet guiding pipe and the pipe wall of the air outlet guiding pipe; and silencing fibers are filled in the middle cavity of the shell. According to the utility model, a mixed auxiliary silencer is composed of a built-in helmholtz silencer, a three-pipe labyrinth silencer, a perforating silencer and a resisting silencer; the auxiliary silencer can be used for silencing high, middle and high-frequency exhaust noise; the air inlet and the air outlet are designed on the same side; the volume of the silencer is smaller; and the auxiliary silencer is applied to an arranging space and a use condition of the range extended type electric automobile.
Description
Technical field
The utility model belongs to the baffler technical field, is specifically related to a kind of auxiliary baffler for stroke-increasing electric automobile.
Background technique
The baffler of car generally is comprised of main baffler and auxiliary baffler two large divisions, and auxiliary baffler replenishes as main baffler, mainly eliminates the high frequency noise of vent systems, and avoids air-flow to produce new noise in vent systems.Traditional auxiliary baffler is generally the perforation baffler, and portioned product is filled the noise reduction fiber between honeycomb duct and housing, mainly for the HFS in the exhaust noise.Air-flow flows into from suction port, and flow out the air outlet.Flow between honeycomb duct and housing by each aperture, a part of sound wave produces standing wave in baffler, and a part of acoustic wave energy is absorbed by the noise reduction fiber and is converted into heat energy.This auxiliary baffler can play good inhibitory action to the exhaust sound of conventional gasoline car, but on the stroke-increasing electric automobile, the exhaust noise frequency is complicated, and the auxiliary baffler of tradition can't meet the demands.Traditional auxiliary baffler is cylindrical structural, and axial dimension is large, needs long arrangement space, affects the ground Clearance of stroke-increasing electric automobile, and the thermal radiation to base plate is larger simultaneously.
The model utility content
Stroke-increasing electric automobile vent systems noise is high in order to solve, arrangement space is nervous, and the auxiliary baffler of tradition can't satisfy the problem of usage requirement, and the utility model provides a kind of auxiliary baffler for stroke-increasing electric automobile.
The auxiliary baffler that is used for stroke-increasing electric automobile comprises housing 8, the air inlet honeycomb duct 2 of oval column and the honeycomb duct 3 of giving vent to anger, and the front-end and back-end of housing 8 are respectively equipped with front cover 1 and rear end cover 7.Housing 8 interior front dividing plate 4 and the rear bulkheads 6 of being laid with respectively, front dividing plate 4 and rear bulkhead 6 will be divided into ante-chamber, intermediate cavity and back cavity in the housing 8; Air inlet honeycomb duct 2 and the honeycomb duct 3 of giving vent to anger all are positioned at housing 8, and a port of a port of air inlet honeycomb duct 2 and the honeycomb duct 3 of giving vent to anger extends outside the front cover 1 respectively, and air inlet honeycomb duct 2 passes front dividing plate 4 another port and is positioned on the rear bulkhead 6; The honeycomb duct 3 of giving vent to anger passes front dividing plate 4 another port and extends in the back cavity; Be laid with spilehole on the tube wall of air inlet honeycomb duct 2 and on the tube wall of the honeycomb duct 3 of giving vent to anger; Be filled with noise reduction fiber 5 in the intermediate cavity of described housing 8; Be positioned on the honeycomb duct 3 of giving vent to anger of ante-chamber and intermediate cavity and be arranged with sleeve pipe 9; Wherein air inlet honeycomb duct 2, housing 8, front cover 1 and front dividing plate 4 form a perforation baffler, and described air inlet honeycomb duct 2, rear bulkhead 6, housing 8, rear end cover 7, the honeycomb duct 3 of giving vent to anger have formed hereby baffler of a built-in type Hull nurse; Air inlet honeycomb duct 2 between described front dividing plate 4 and the rear bulkhead 6 and the honeycomb duct 3 of giving vent to anger consist of an approximate lost baffler of three pipes; Noise reduction fiber 5 between described front dividing plate 4 and the rear bulkhead 6 forms a resistive muffler.
The utility model by built-in type Hull nurse hereby baffler, the lost baffler of three pipes, perforation baffler and resistive muffler forms a hybrid type and assists baffler, can act on the exhaust noise of high, medium and low frequency; Air inlet and vent design be in the same side, and the small volume of baffler is applicable to arrangement space and the applying working condition of stroke-increasing electric automobile.
Description of drawings
Fig. 1 is the utility model structural representation.
Sequence number among the upper figure: front cover 1, air inlet honeycomb duct 2, the honeycomb duct 3 of giving vent to anger, front dividing plate 4, noise reduction fiber 5, rear bulkhead 6, rear end cover 7, housing 8, sleeve pipe 9.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Referring to Fig. 1,
The auxiliary baffler that is used for stroke-increasing electric automobile comprises housing 8, the air inlet honeycomb duct 2 of oval column and the honeycomb duct 3 of giving vent to anger.The front-end and back-end of housing 8 are separately installed with front cover 1 and rear end cover 7.Housing 8 interior respectively uniform front dividing plate 4 and the rear bulkheads 6 of being equipped with, front dividing plate 4 and rear bulkhead 6 will be divided into ante-chamber, intermediate cavity and back cavity in the housing 8.Air inlet honeycomb duct 2 and the honeycomb duct 3 of giving vent to anger all are positioned at housing 8, and a port of a port of air inlet honeycomb duct 2 and the honeycomb duct 3 of giving vent to anger extends outside the front cover 1 respectively, and air inlet honeycomb duct 2 passes front dividing plate 4 another port and is positioned on the rear bulkhead 6; The honeycomb duct 3 of giving vent to anger passes front dividing plate 4 another port and extends in the back cavity; Be laid with spilehole on the tube wall of air inlet honeycomb duct 2 and on the tube wall of the honeycomb duct 3 of giving vent to anger; Be filled with noise reduction fiber 5 in the intermediate cavity of described housing 8.
Air inlet honeycomb duct 2, housing 8, front cover 1 and front dividing plate 4 form a perforation baffler, air-flow flows into from air inlet honeycomb duct 2, and from the cavity between aperture inflow front cover 1 and the front dividing plate 4, flow back to again air inlet honeycomb duct 2, sound wave interacts in cavity, has reduced the exhaust sound in the 40-200Hz frequency range.
Air inlet honeycomb duct 2, rear bulkhead 6, housing 8, rear end cover 7, the honeycomb duct 3 of giving vent to anger have formed hereby baffler of a built-in type Hull nurse; Air-flow flows to the cavity from the air inlet honeycomb duct, is entering the exhaust honeycomb duct by the exhaust honeycomb duct mouth of pipe and aperture, and air-flow interacts in cavity, and again effect has reduced the exhaust sound in the 40-200Hz frequency range in the process of aperture of flowing through.
Air inlet honeycomb duct 2 between front dividing plate 4 and the rear bulkhead 6 and the honeycomb duct 3 of giving vent to anger have consisted of an approximate lost baffler of three pipes cleverly; Air-flow flows out from the aperture of air inlet honeycomb duct 2, flows into (see figure 4) from the aperture of exhaust honeycomb duct, during sound wave interaction, produce standing wave, reduced the noise in the 100-500Hz band limits in the exhaust sound.
The honeycomb duct 3 of giving vent to anger self forms a perforation baffler, can reduce the exhaust sound in the 40-200Hz frequency range.
Noise reduction fiber between front dividing plate 4 and the rear bulkhead 6 has formed a resistive muffler, air inlet honeycomb duct 2 between front dividing plate 4 and the rear bulkhead 6 and the air-flow of giving vent to anger between the honeycomb duct 3 can pass through noise reduction fiber 5, getting high frequency (more than the 500Hz) transformation of energy in the exhaust noise is the heat energy of noise reduction fiber 5, has reduced the high frequency noise of vent systems.
Claims (1)
1. the auxiliary baffler that is used for stroke-increasing electric automobile, the housing (8), air inlet honeycomb duct (2) and the honeycomb duct of giving vent to anger (3) that comprise oval column, the front-end and back-end of housing (8) are respectively equipped with front cover (1) and rear end cover (7), it is characterized in that: be laid with respectively front dividing plate (4) and rear bulkhead (6) in the housing (8), front dividing plate (4) and rear bulkhead (6) will be divided into ante-chamber, intermediate cavity and back cavity in the housing (8); Air inlet honeycomb duct (2) and the honeycomb duct of giving vent to anger (3) all are positioned at housing (8), one port of one port of air inlet honeycomb duct (2) and the honeycomb duct (3) of giving vent to anger extends outside the front cover (1) respectively, and air inlet honeycomb duct (2) passes front dividing plate (4) another port and is positioned on the rear bulkhead (6); The honeycomb duct (3) of giving vent to anger passes front dividing plate (4) another port and extends in the back cavity; Be laid with spilehole on the tube wall of air inlet honeycomb duct (2) and on the tube wall of honeycomb duct (3) of giving vent to anger; Be filled with noise reduction fiber (5) in the intermediate cavity of described housing (8); Be positioned on the honeycomb duct of giving vent to anger (3) of ante-chamber and intermediate cavity and be arranged with sleeve pipe (9); Wherein air inlet honeycomb duct (2), housing (8), front cover (1) and front dividing plate (4) form an approximate lost baffler of three pipes, and described air inlet honeycomb duct (2), rear bulkhead (6), housing (8), rear end cover (7), the honeycomb duct of giving vent to anger (3) have formed hereby baffler of a built-in type Hull nurse; Air inlet honeycomb duct (2) between described front dividing plate (4) and the rear bulkhead (6) and the honeycomb duct of giving vent to anger (3) consist of an approximate lost baffler of three pipes; Noise reduction fiber (5) between described front dividing plate (4) and the rear bulkhead (6) forms a resistive muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339274 CN202707195U (en) | 2012-07-13 | 2012-07-13 | Auxiliary silencer for range extended type electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339274 CN202707195U (en) | 2012-07-13 | 2012-07-13 | Auxiliary silencer for range extended type electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707195U true CN202707195U (en) | 2013-01-30 |
Family
ID=47587504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339274 Expired - Fee Related CN202707195U (en) | 2012-07-13 | 2012-07-13 | Auxiliary silencer for range extended type electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139190A (en) * | 2017-06-19 | 2019-01-04 | 上海天纳克排气系统有限公司 | Silencer |
| CN112303030A (en) * | 2019-07-29 | 2021-02-02 | 无锡小天鹅电器有限公司 | Silencer and clothes treatment equipment |
-
2012
- 2012-07-13 CN CN 201220339274 patent/CN202707195U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139190A (en) * | 2017-06-19 | 2019-01-04 | 上海天纳克排气系统有限公司 | Silencer |
| CN112303030A (en) * | 2019-07-29 | 2021-02-02 | 无锡小天鹅电器有限公司 | Silencer and clothes treatment equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: The East Road in Baohe District of Hefei city of Anhui Province, No. 176 230022 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20190713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |