CN203742735U - Silencing cylinder partitioning plate component with double-door-window-shaped holes - Google Patents
Silencing cylinder partitioning plate component with double-door-window-shaped holes Download PDFInfo
- Publication number
- CN203742735U CN203742735U CN201420121491.0U CN201420121491U CN203742735U CN 203742735 U CN203742735 U CN 203742735U CN 201420121491 U CN201420121491 U CN 201420121491U CN 203742735 U CN203742735 U CN 203742735U
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- China
- Prior art keywords
- silencing pot
- door window
- degree
- window opening
- sound hole
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- Expired - Fee Related
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Abstract
The utility model discloses a silencing cylinder partitioning plate component with double-door-window-shaped holes. The silencing cylinder single type partitioning plate component comprises a silencing cylinder. After the silencing cylinder is flattened, a rectangular silencing cylinder flattening piece is formed. The silencing cylinder flattening piece is provided with a plurality of double-door-window-shaped holes which comprise rectangular sound passing holes formed in the silencing cylinder flattening piece. The sound passing holes are provided with horizontal beams. The axes of the horizontal beams coincide with the connecting lines of the middle points of opposite sides of the sound passing holes. A wing plate A and a wing plate B are connected to the two sides of each horizontal beam. Each horizontal beam divides a corresponding sound passing hole into two symmetrical through holes with the same area. An acute angle A is formed between each wing plate A and the silencing cylinder flattening piece. An acute angle B is formed between each wing plate B and the silencing cylinder flattening piece. The area of each wing plate A is equal to the area of a sound passing hole zone on the left side of each horizontal beam. The area of each wing plate B is equal to the area of a sound passing hole zone on the right side of each horizontal beam. The silencing cylinder partitioning plate component has the advantages of being simple in structure and high in anti-noise capacity.
Description
Technical field
The utility model relates to automotive silencing field, specifically: the baffle plate for silencing pot assembly that possesses two-door window opening.
Background technique
Baffle plate for silencing pot assembly, as the significant components of automobile silencing, existing structure is mainly comprised of silencing pot and end cap, and wherein, silencing pot is provided with the circle of evenly arranging and crosses sound hole, and end cap is slab construction.Above-mentioned hush pipe is used in after the car of Alto, can attenuating noise, and when the original output noise of motor is 95 decibels, after the noise reduction after silencing pot end-cap assembly is processed, 73.58 decibels of its outputs, its noise is still larger.
Model utility content
Technical problem to be solved in the utility model is that the baffle plate for silencing pot assembly that possesses two-door window opening that a kind of noise reduction value is large is set.
The technical scheme in the invention for solving the above technical problem is: the baffle plate for silencing pot assembly that possesses two-door window opening, comprise silencing pot A and silencing pot B that two axial lines is parallel, comprise dividing plate A parallel to each other and dividing plate B, silencing pot A flattens open and flat of rear rectangular silencing pot, open and flat of silencing pot is provided with several two-door window openings, two-door window opening comprises the sound hole of crossing of the rectangle that is arranged on open and flat of silencing pot, cross sound hole and be provided with crossbeam, the axis of crossbeam overlaps with the line of crossing sound hole relative edge mid point, crossbeam both sides are connected with wing plate A and wing plate B, crossbeam is divided into homalographic and two symmetrical through holes by crossing sound hole, between open and flat of wing plate A and silencing pot, form acute angle A, between open and flat of wing plate B and silencing pot, form acute angle B, the area of wing plate A equals the sound hole region area excessively in crossbeam left side, the area of wing plate B equals the sound hole region area excessively on crossbeam right side, silencing pot A external diameter is arranged with silencing pot A outer casing member, silencing pot A outer casing member was coated on sound hole region, silencing pot B and silencing pot B all run through dividing plate A and dividing plate B simultaneously, wherein, silencing pot B and silencing pot B cross sound hole in the region division You Zhong district between dividing plate A and dividing plate B.
The circular noise-cancelling theory of crossing sound hole of tradition is: the structure of micropole diffusor is the straight tube of an endcapped, is drilled with a lot of apertures on tube wall.The principle of micropole diffusor is to take that the frequency spectrum of jet noise is foundation, if the gross area of maintenance spout is constant, with a lot of little spouts, replace, when the frequency spectrum of air-flow during through small holes, jet noise will be shifted to high frequency or ultra-high frequency, audible sound composition in frequency spectrum is obviously reduced, thereby reduce people's interference and injury.
Design of the present utility model is: change traditional circular hole into rectangular opening, utilize crossbeam to intercept into 2 symmetrical through holes by crossing sound hole, and utilize wing plate A and wing plate B to form sound wave obstruct break-in, between two adjacent mistake sound holes, from crossing the sound wave of sound hole outflow, under the leading role of wing plate A and wing plate B, to the adjacent sound hole direction of crossing, propagate, final mutual weakening, reaches the object of noise reduction.Under the same conditions, be that sound hole structure is different, the utility model is compared the sound hole of crossing of traditional round structure, and it is interval that noise reduction index of the present utility model can be controlled at 51.5-68.4 decibel.By silencing pot A and silencing pot B, dividing plate A and dividing plate B and silencing pot B and the region division You Zhong district of silencing pot B between dividing plate A and dividing plate B, cross the structure that sound hole forms, can be on the basis of above-mentioned independent silencing pot A, further reduce noise, generally can reduce noise 5-10 decibel.
Preferably, wing plate A and wing plate B are rectangle.
The angle of acute angle A equals 20 degree or 30 degree or 40 degree or 50 degree or 60 degree or 70 degree, and the angle of acute angle B equals 20 degree or 30 degree or 40 degree or 50 degree or 60 degree or 70 degree.
Through above-mentioned experiment, the utility model is preferred, and when the angle of acute angle A equals 30 degree, the angle of acute angle B equals 30 degree.
Preferably, the angle of acute angle A equals acute angle B.
Further, every three two-door window openings rearrange the two-door window opening group of row formula according to yi word pattern, three two-door window opening groups of row formula are not arranged and are formed the two-door window opening group of determinant according to row, the column direction of being expert at of the two-door window opening group of two row formulas separately flushes and arranges, and the two-door window opening group of row formula in the middle of being positioned at all misplaces and arranges with the two-door window opening group of row formula of both sides.
Through experiment, when the angle of acute angle A equals 20 degree, the angle of acute angle B equals 20 while spending, noise reduction index of the present utility model can be controlled at 57.5 decibels, through experiment, when the angle of acute angle A equals 30 degree, the angle of acute angle B equals 30 while spending, noise reduction index of the present utility model can be controlled at 51.5 decibels, through experiment, when the angle of acute angle A equals 20 degree, the angle of acute angle B equals 20 while spending, noise reduction index of the present utility model can be controlled at 57 decibels, through experiment, when the angle of acute angle A equals 40 degree, the angle of acute angle B equals 40 while spending, noise reduction index of the present utility model can be controlled at 60.4 decibels, through experiment, when the angle of acute angle A equals 50 degree, the angle of acute angle B equals 50 while spending, noise reduction index of the present utility model can be controlled at 64 decibels, through experiment, when the angle of acute angle A equals 60 degree, the angle of acute angle B equals 60 while spending, noise reduction index of the present utility model can be controlled at 65.8 decibels, through experiment, when the angle of acute angle A equals 70 degree, the angle of acute angle B equals 70 while spending, noise reduction index of the present utility model can be controlled at 68.4 decibels.
Silencing pot A is positioned at one end away from silencing pot A outer casing member and is also provided with outskirt and crosses sound hole, and the region that outskirt is crossed sound hole place is positioned at dividing plate B away from a side of dividing plate A.
Dividing plate B is provided with some through holes.
To sum up, the beneficial effects of the utility model are: simple in structure, anti-noise ability is strong.
Accompanying drawing explanation
Fig. 1 is the front view for open and flat of silencing pot.
Fig. 2 is the stereogram of silencing pot A.
Fig. 3 is stereogram of the present utility model.
Number in the figure is expressed as: 1, two-door window opening; 2, the two-door window opening group of row formula; 3, the two-door window opening group of determinant; 4, wing plate A; 5, wing plate B; 6, cross sound hole; 7, silencing pot is open and flat; 11, dividing plate A; 12, dividing plate B; 13, silencing pot A outer casing member; 14, silencing pot A; 15, sound hole is crossed in middle district; 16, outskirt is crossed sound hole; 17, silencing pot B.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is done to detailed description further, but mode of execution of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1-Figure 3.
The baffle plate for silencing pot assembly that possesses two-door window opening, comprise silencing pot A14 and silencing pot B17 that two axial lines is parallel, comprise dividing plate A11 parallel to each other and dividing plate B12, silencing pot A flattens open and flat 7 of rear rectangular silencing pot, open and flat of silencing pot is provided with several two-door window openings 1, what two-door window opening comprised the rectangle that is arranged on open and flat 7 of silencing pot crosses sound hole 6, cross sound hole 6 and be provided with crossbeam, the axis of crossbeam overlaps with the line of crossing sound hole 6 relative edge's mid points, crossbeam both sides are connected with wing plate A4 and wing plate B5, crossbeam is divided into homalographic and two symmetrical through holes by crossing sound hole 6, between open and flat of wing plate A4 and silencing pot, form acute angle A, between open and flat of wing plate B5 and silencing pot, form acute angle B, the area of wing plate A4 equals sound hole 6 region areas excessively in crossbeam left side, the area of wing plate B5 equals sound hole 6 region areas excessively on crossbeam right side, silencing pot A14 external diameter is arranged with silencing pot A outer casing member 13, silencing pot A outer casing member 13 was coated on sound hole 6 regions, silencing pot B17 and silencing pot B17 all run through dividing plate A11 and dividing plate B12 simultaneously, wherein, silencing pot B17 and silencing pot B17 cross sound hole 15 in the region division You Zhong district between dividing plate A11 and dividing plate B12.
The circular noise-cancelling theory of crossing sound hole of tradition is: the structure of micropole diffusor is the straight tube of an endcapped, is drilled with a lot of apertures on tube wall.The principle of micropole diffusor is to take that the frequency spectrum of jet noise is foundation, if the gross area of maintenance spout is constant, with a lot of little spouts, replace, when the frequency spectrum of air-flow during through small holes, jet noise will be shifted to high frequency or ultra-high frequency, audible sound composition in frequency spectrum is obviously reduced, thereby reduce people's interference and injury.
Design of the present utility model is: change traditional circular hole into rectangular opening, utilize crossbeam to intercept into 2 symmetrical through holes by crossing sound hole 6, and utilize wing plate A4 and wing plate B5 to form sound wave obstruct break-in, between two adjacent mistake sound holes 6, from crossing the sound wave of sound hole 6 outflows, under the leading role of wing plate A4 and wing plate B5, to the adjacent sound hole direction of crossing, propagate, final mutual weakening, reaches the object of noise reduction.Under the same conditions, be that sound hole structure is different, the utility model is compared the sound hole of crossing of traditional round structure, and it is interval that noise reduction index of the present utility model can be controlled at 51.5-68.4 decibel.By silencing pot A14 and silencing pot B17, dividing plate A11 and dividing plate B12 and silencing pot B17 and the region division You Zhong district of silencing pot B17 between dividing plate A11 and dividing plate B12, cross the structure that sound hole 15 forms, can be on the basis of above-mentioned independent silencing pot A14, further reduce noise, generally can reduce noise 5-10 decibel.
Preferably, wing plate A4 and wing plate B5 are rectangle.
The angle of acute angle A equals 20 degree or 30 degree or 40 degree or 50 degree or 60 degree or 70 degree, and the angle of acute angle B equals 20 degree or 30 degree or 40 degree or 50 degree or 60 degree or 70 degree.
Through above-mentioned experiment, the utility model is preferred, and when the angle of acute angle A equals 30 degree, the angle of acute angle B equals 30 degree.
Preferably, the angle of acute angle A equals acute angle B.
Further, every three two-door window openings 1 rearrange the two-door window opening group 2 of row formula according to yi word pattern, three two-door window opening groups 2 of row formula are not arranged and are formed the two-door window opening group 3 of determinant according to row, the column direction of being expert at of the two-door window opening group 2 of two row formulas separately flushes and arranges, and the two-door window opening group 2 of row formula in the middle of being positioned at all misplaces and arranges with the two-door window opening group 2 of row formula of both sides.
Through experiment, when the angle of acute angle A equals 20 degree, the angle of acute angle B equals 20 while spending, noise reduction index of the present utility model can be controlled at 57.5 decibels, through experiment, when the angle of acute angle A equals 30 degree, the angle of acute angle B equals 30 while spending, noise reduction index of the present utility model can be controlled at 51.5 decibels, through experiment, when the angle of acute angle A equals 20 degree, the angle of acute angle B equals 20 while spending, noise reduction index of the present utility model can be controlled at 57 decibels, through experiment, when the angle of acute angle A equals 40 degree, the angle of acute angle B equals 40 while spending, noise reduction index of the present utility model can be controlled at 60.4 decibels, through experiment, when the angle of acute angle A equals 50 degree, the angle of acute angle B equals 50 while spending, noise reduction index of the present utility model can be controlled at 64 decibels, through experiment, when the angle of acute angle A equals 60 degree, the angle of acute angle B equals 60 while spending, noise reduction index of the present utility model can be controlled at 65.8 decibels, through experiment, when the angle of acute angle A equals 70 degree, the angle of acute angle B equals 70 while spending, noise reduction index of the present utility model can be controlled at 68.4 decibels.
Silencing pot A14 is positioned at one end away from silencing pot A outer casing member 13 and is also provided with outskirt and crosses sound hole 16, and the region that outskirt is crossed sound hole 16 places is positioned at dividing plate B12 away from a side of dividing plate A11.
Dividing plate B is provided with some through holes.
As mentioned above, can realize preferably the utility model.
Claims (7)
1. the baffle plate for silencing pot assembly that possesses two-door window opening, it is characterized in that, comprise the silencing pot A(14 that two axial lines is parallel) and silencing pot B(17), comprise dividing plate A(11 parallel to each other) and dividing plate B(12), rectangular open and flat of silencing pot (7) after silencing pot A flattens, open and flat of silencing pot is provided with several two-door window openings (1), what two-door window opening comprised the rectangle that is arranged on silencing pot open and flat (7) crosses sound hole (6), cross sound hole (6) and be provided with crossbeam, the axis of crossbeam overlaps with the line of crossing sound hole (6) relative edge's mid point, crossbeam both sides are connected with wing plate A(4) and wing plate B(5), crossbeam will be crossed sound hole (6) and be divided into homalographic and two symmetrical through holes, wing plate A(4) and between open and flat of silencing pot form acute angle A, wing plate B(5) and between open and flat of silencing pot form acute angle B, wing plate A(4) area equals sound hole (6) region area excessively in crossbeam left side, wing plate B(5) area equals sound hole (6) region area excessively on crossbeam right side, silencing pot A(14) external diameter is arranged with silencing pot A outer casing member (13), silencing pot A outer casing member (13) was coated on sound hole (6) region, silencing pot B(17) and silencing pot B(17) all run through dividing plate A(11 simultaneously) and dividing plate B(12), wherein, silencing pot B(17) and silencing pot B(17) be positioned at dividing plate A(11) and dividing plate B(12) between region division You Zhong district cross sound hole (15).
2. the baffle plate for silencing pot assembly that possesses two-door window opening according to claim 1, is characterized in that wing plate A(4) and wing plate B(5) be rectangle.
3. the baffle plate for silencing pot assembly that possesses two-door window opening according to claim 1, it is characterized in that, the angle of acute angle A equals 20 degree or 30 degree or 40 degree or 50 degree or 60 degree or 70 degree, and the angle of acute angle B equals 20 degree or 30 degree or 40 degree or 50 degree or 60 degree or 70 degree.
4. the baffle plate for silencing pot assembly that possesses two-door window opening according to claim 1, is characterized in that, the angle of acute angle A equals acute angle B.
5. the baffle plate for silencing pot assembly that possesses two-door window opening according to claim 1, it is characterized in that, every three two-door window openings (1) rearrange the two-door window opening group of row formula (2) according to yi word pattern, three two-door window opening groups of row formula (2) are not arranged and are formed the two-door window opening group of determinant (3) according to row, the column direction of being expert at of the two-door window opening groups of two row formulas (2) separately flushes and arranges, and the two-door window opening group of row formula (2) in the middle of being positioned at all misplaces and arranges with the two-door window opening group of row formula (2) of both sides.
6. the baffle plate for silencing pot assembly that possesses two-door window opening according to claim 1, it is characterized in that, silencing pot A(14) be positioned at one end away from silencing pot A outer casing member (13) and be also provided with outskirt and cross sound hole (16), the region that outskirt is crossed sound hole (16) place is positioned at dividing plate B(12) away from dividing plate A(11) a side.
7. the baffle plate for silencing pot assembly that possesses two-door window opening according to claim 1, is characterized in that, dividing plate B is provided with some through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121491.0U CN203742735U (en) | 2014-03-18 | 2014-03-18 | Silencing cylinder partitioning plate component with double-door-window-shaped holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121491.0U CN203742735U (en) | 2014-03-18 | 2014-03-18 | Silencing cylinder partitioning plate component with double-door-window-shaped holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742735U true CN203742735U (en) | 2014-07-30 |
Family
ID=51342548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121491.0U Expired - Fee Related CN203742735U (en) | 2014-03-18 | 2014-03-18 | Silencing cylinder partitioning plate component with double-door-window-shaped holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153848A (en) * | 2014-03-18 | 2014-11-19 | 成都陵川常友汽车部件制造有限公司 | Double-door-window-shaped silencing pot partition plate assembly |
-
2014
- 2014-03-18 CN CN201420121491.0U patent/CN203742735U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153848A (en) * | 2014-03-18 | 2014-11-19 | 成都陵川常友汽车部件制造有限公司 | Double-door-window-shaped silencing pot partition plate assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20160318 |