CN203742716U - Silencing cylinder single type partitioning plate component with double-door-window-shaped holes - Google Patents
Silencing cylinder single type partitioning plate component with double-door-window-shaped holes Download PDFInfo
- Publication number
- CN203742716U CN203742716U CN201420121626.3U CN201420121626U CN203742716U CN 203742716 U CN203742716 U CN 203742716U CN 201420121626 U CN201420121626 U CN 201420121626U CN 203742716 U CN203742716 U CN 203742716U
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- CN
- China
- Prior art keywords
- silencing pot
- door window
- window opening
- degree
- silencing
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- Expired - Fee Related
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Abstract
The utility model discloses a silencing cylinder single type 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 single type 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 silencing pot single entry baffle assembly that possesses two-door window opening.
Background technique
Silencing pot end-cap assembly, as the significant components of automobile silencing, existing structure is mainly made up 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 silencing pot single entry baffle 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 silencing pot single entry baffle assembly that possesses two-door window opening, comprise silencing pot, silencing pot flattens open and flat of rectangular afterwards 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 crossbeam left side and crosses sound hole region area, the area of wing plate B equals crossbeam right side and crosses sound hole region area.The area segments that silencing pot is provided with two-door window opening is A district, the A district external diameter of silencing pot is arranged with silencing pot outer tube part, silencing pot outer tube part one end and the welding of silencing pot outer wall, between silencing pot outer tube part the other end internal diameter and silencing pot outer wall, be provided with tubular steel wire, the area segments that silencing pot is not provided with two-door window opening is B district, the B district of silencing pot is also provided with bloop, the B district outer wall of silencing pot is also connected with secondary silencing pot, secondary silencing pot is groove part, the notch of secondary silencing pot is connected to the B district outer wall of silencing pot, after the bending sensing in one end silencing pot of secondary silencing pot in the face of silencing pot outer tube part, be connected with silencing pot outer wall is closed, bloop is positioned at secondary silencing pot.
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 taking the frequency spectrum of jet noise as foundation, replace with a lot of little spouts if the gross area of maintenance spout is constant, 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 interference and injury to people.
Design of the present utility model is: silencing pot is divided into A district and B district by the present invention, and having the area segments of two-door window opening is A district, and the area segments that is not provided with two-door window opening is B district.
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, propagate to the adjacent sound hole direction of crossing under the leading role of wing plate A and wing plate B from the sound wave of crossing sound hole outflow, final mutual weakening, reaches the object of noise reduction.Under the same conditions, be sound hole structure difference, the utility model is compared the sound hole of crossing of traditional round structure, and noise reduction index of the present utility model can be controlled at 51.5-68.4 decibel interval.
Then increase silencing pot outer tube part in A district and further control noise figure, making silencing pot outer tube part inside is noise elimination noise reduction interval with silencing pot outer diameter zone, sound wave is weakened in this interval, utilize tubular steel wire as sealing supporting structure, tubular steel wire also can be used as the noise elimination structure packing of resistance.In addition, offer bloop and secondary silencing pot in B district, further control noise figure.Total noise reduction index can be controlled at 48.8-61.4 decibel interval.
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.
Silencing pot is also arranged with dividing plate away from one end external diameter of silencing pot outer tube part.
Bloop is ellipse hole.
Bloop is manhole, and diameter is between 3cm to 6cm.
Through experiment, without secondary silencing pot, when silencing pot outer tube part, 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.
To sum up, the beneficial effects of the utility model are: simple in structure, anti-noise ability is strong.
Brief description of the drawings
Fig. 1 is the front view for open and flat of silencing pot.
Fig. 2 is stereogram of the present utility model.
Fig. 3 is side planing figure 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, open and flat of silencing pot;
8, dividing plate; 9, silencing pot; 10, secondary silencing pot; 11, silencing pot outer tube part; 12, tubular steel wire; 13, bloop.
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.
Possesses the silencing pot single entry baffle assembly of two-door window opening, comprise silencing pot, silencing pot flattens open and flat 7 of rectangular afterwards 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 crossbeam left side and crosses sound hole 6 region areas, the area of wing plate B5 equals crossbeam right side and crosses sound hole 6 region areas.The area segments that silencing pot 9 is provided with two-door window opening is A district, the A district external diameter of silencing pot 9 is arranged with silencing pot outer tube part 11, silencing pot outer tube part 11 one end and silencing pot 9 outer wall welding, between silencing pot outer tube part 11 the other end internal diameters and silencing pot 9 outer walls, be provided with tubular steel wire 12, the area segments that silencing pot is not provided with two-door window opening is B district, the B district of silencing pot is also provided with bloop 13, the B district outer wall of silencing pot is also connected with secondary silencing pot 10, secondary silencing pot 10 is groove part, the notch of secondary silencing pot 10 is connected to the B district outer wall of silencing pot, after the bending sensing in one end silencing pot 9 of secondary silencing pot 10 in the face of silencing pot outer tube part 11, be connected with silencing pot 9 outer walls are closed, bloop 13 is positioned at secondary silencing pot 10.
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 taking the frequency spectrum of jet noise as foundation, replace with a lot of little spouts if the gross area of maintenance spout is constant, 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 interference and injury to people.
Design of the present utility model is: silencing pot 9 is divided into A district and B district by the present invention, and having the area segments of two-door window opening is A district, and the area segments that is not provided with two-door window opening is B district.
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, propagate to the adjacent sound hole direction of crossing under the leading role of wing plate A4 and wing plate B5 from the sound wave that sound hole 6 flows out excessively, final mutual weakening, reaches the object of noise reduction.Under the same conditions, be sound hole structure difference, the utility model is compared the sound hole of crossing of traditional round structure, and noise reduction index of the present utility model can be controlled at 51.5-68.4 decibel interval.
Then increase silencing pot outer tube part 11 in A district and further control noise figure, making silencing pot outer tube part 11 inside is noise elimination noise reduction interval with silencing pot 9 outer diameter zone, sound wave is weakened in this interval, utilize tubular steel wire 12 as sealing supporting structure, tubular steel wire 12 also can be used as the noise elimination structure packing of resistance.In addition, offer bloop 13 and secondary silencing pot 10 in B district, further control noise figure.Total noise reduction index can be controlled at 48.8-61.4 decibel interval.
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.
Silencing pot 9 is also arranged with dividing plate 8 away from one end external diameter of silencing pot outer tube part 11.
When bloop 13 is ellipse hole.Total noise reduction index can be controlled at 48.8 decibels.
Bloop 13 is manhole, and diameter is between 3cm to 6cm.Total noise reduction index can be controlled at 52-61.4 decibel interval.
Through experiment, without secondary silencing pot, when silencing pot outer tube part, 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.
As mentioned above, can realize preferably the utility model.
Claims (8)
1. possesses the silencing pot single entry baffle assembly of two-door window opening, it is characterized in that, comprise silencing pot (9), rectangular open and flat of silencing pot (7) after silencing pot 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 open and flat of silencing pot between form acute angle A, wing plate B(5) and open and flat of silencing pot between form acute angle B, wing plate A(4) area equal crossbeam left side and cross sound hole (6) region area, wing plate B(5) area equal crossbeam right side and cross sound hole (6) region area, the area segments that silencing pot (9) is provided with two-door window opening is A district, the A district external diameter of silencing pot (9) is arranged with silencing pot outer tube part (11), silencing pot outer tube part (11) one end and the welding of silencing pot (9) outer wall, between silencing pot outer tube part (11) the other end internal diameter and silencing pot (9) outer wall, be provided with tubular steel wire (12), the area segments that silencing pot is not provided with two-door window opening is B district, the B district of silencing pot is also provided with bloop (13), the B district outer wall of silencing pot is also connected with secondary silencing pot (10), secondary silencing pot (10) is groove part, the notch of secondary silencing pot (10) is connected to the B district outer wall of silencing pot, in the face of one end bending of silencing pot outer tube part (11) is pointed to, silencing pot (9) is rear to be connected with silencing pot (9) outer wall is closed secondary silencing pot (10), bloop (13) is positioned at secondary silencing pot (10).
2. the silencing pot single entry baffle 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 silencing pot single entry baffle 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 silencing pot single entry baffle 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 silencing pot single entry baffle 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 silencing pot single entry baffle assembly that possesses two-door window opening according to claim 1, is characterized in that, silencing pot (9) is also arranged with dividing plate (8) away from one end external diameter of silencing pot outer tube part (11).
7. the silencing pot single entry baffle assembly that possesses two-door window opening according to claim 1, is characterized in that, bloop (13) is ellipse hole.
8. the silencing pot single entry baffle assembly that possesses two-door window opening according to claim 1, is characterized in that, bloop (13) is manhole, and diameter is between 3cm to 6cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121626.3U CN203742716U (en) | 2014-03-18 | 2014-03-18 | Silencing cylinder single type partitioning plate component with double-door-window-shaped holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121626.3U CN203742716U (en) | 2014-03-18 | 2014-03-18 | Silencing cylinder single type partitioning plate component with double-door-window-shaped holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742716U true CN203742716U (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121626.3U Expired - Fee Related CN203742716U (en) | 2014-03-18 | 2014-03-18 | Silencing cylinder single type partitioning plate component with double-door-window-shaped holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153847A (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-and-window shape silencing barrel single partition plate assembly |
-
2014
- 2014-03-18 CN CN201420121626.3U patent/CN203742716U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153847A (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-and-window shape silencing barrel single 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 |
Granted publication date: 20140730 Termination date: 20160318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |