CN213873158U - Silencer and air conditioner - Google Patents
Silencer and air conditioner Download PDFInfo
- Publication number
- CN213873158U CN213873158U CN202023137751.8U CN202023137751U CN213873158U CN 213873158 U CN213873158 U CN 213873158U CN 202023137751 U CN202023137751 U CN 202023137751U CN 213873158 U CN213873158 U CN 213873158U
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- silencing
- tube
- inner inserting
- barrel
- inserting pipe
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- 230000003584 silencer Effects 0.000 title claims abstract description 16
- 230000030279 gene silencing Effects 0.000 claims abstract description 32
- 238000005192 partition Methods 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 230000007704 transition Effects 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model provides a silencer and an air conditioner, wherein the silencer comprises a silencing barrel and an inner inserting pipe assembly, and the inner inserting pipe assembly is arranged inside the silencing barrel; the inner inserting pipe assembly comprises a first inner inserting pipe and a second inner inserting pipe, the first inner inserting pipe extends along the axial direction of the silencing barrel, and two ends of the first inner inserting pipe respectively extend out of two ends of the silencing barrel; both ends of the second inner inserting tube are connected to the first inner inserting tube, and the second inner inserting tube is communicated with the first inner inserting tube; a plurality of silencing holes are formed in the peripheral walls of the first inner inserting pipe and the second inner inserting pipe in a penetrating mode; the silencer also comprises a partition board, the partition board is arranged in the silencing barrel and sleeved outside the inner inserting pipe assembly, and the partition board divides the inner cavity of the silencing barrel into a plurality of silencing chambers. The silencer can widen the effective silencing frequency and reduce the cost.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner technique and specifically relates to a muffler and air conditioner is related to.
Background
In the air conditioner operation process, can produce the noise of certain frequency range in the pipe-line system, the noise transmission will influence the user and experience to this department's product to the indoor side, and then causes the after-sale complaint problem. When a pipeline is designed, a series silencer is generally selected to eliminate partial transmission sound, but most silencers have good silencing effect only in a narrow frequency range, and most silencers encounter broadband noise in practical engineering. It is common to widen the muffling frequency by connecting a plurality of mufflers in series, but this increases the cost.
Disclosure of Invention
The utility model discloses a first purpose provides a can widen effective noise elimination frequency, reduce cost's muffler simultaneously.
The second objective of the present invention is to provide an air conditioner with the above mentioned silencer.
In order to achieve the first object, the utility model provides a silencer, which comprises a silencing barrel and an inner inserting pipe assembly, wherein the inner inserting pipe assembly is arranged inside the silencing barrel; the inner inserting pipe assembly comprises a first inner inserting pipe and a second inner inserting pipe, the first inner inserting pipe extends along the axial direction of the silencing barrel, and two ends of the first inner inserting pipe respectively extend out of two ends of the silencing barrel; both ends of the second inner inserting tube are connected to the first inner inserting tube, and the second inner inserting tube is communicated with the first inner inserting tube; a plurality of silencing holes are formed in the peripheral walls of the first inner inserting pipe and the second inner inserting pipe in a penetrating mode; the silencer also comprises a partition board, the partition board is arranged in the silencing barrel and sleeved outside the inner inserting pipe assembly, and the partition board divides the inner cavity of the silencing barrel into a plurality of silencing chambers.
It can be seen by above-mentioned scheme that, increases the sound wave transmission route through setting up many spinal branchs pipeline sections, and the baffle is split into a plurality of amortization cavities with the inner chamber of muffler, and through the quantity and the position of intubate and baffle in the adjustment, can obtain the amortization cavity of different volumes, and then eliminate the corresponding frequency noise that meets in the actual engineering. The utility model provides a muffler is through cutting apart muffler intracavity volume and then realize widening the purpose of effective noise elimination frequency.
Preferably, the two ends of the sound attenuation barrel are respectively provided with a barrel inlet and a barrel outlet, the inlet end of the second inner insertion pipe is arranged close to the barrel inlet, and the outlet end of the second inner insertion pipe is arranged close to the barrel outlet.
The noise reduction barrel comprises an inlet transition section, a cylindrical section and an outlet transition section which are sequentially connected along the axial direction, wherein the inlet transition section and the outlet transition section are both in a circular truncated cone shape; the cylinder inlet is located at the end of the inlet transition section, and the cylinder outlet is located at the end of the outlet transition section.
Preferably, the number of the second inner tubes is two or more, and the plurality of second inner tubes surround the first inner tube centering on the first inner tube.
Preferably, the second inner insert tube comprises at least two bending portions arranged at an included angle.
One preferred scheme is, the quantity of baffle is more than two, and a plurality of baffles are arranged along the axial interval of amortization barrel.
Therefore, the number of the baffle plates can be increased, so that the number of the silencing chambers can be increased, and the silencing frequency can be changed.
Preferably, the partition plate is provided with a first through hole through which the first inner insert tube passes and a second through hole through which the second inner insert tube passes.
Preferably, the edge of the partition board is connected with the inner peripheral wall of the sound attenuation cylinder.
In order to achieve the second objective, the present invention provides an air conditioner, including the above-mentioned silencer.
Drawings
Figure 1 is a cross-sectional view of an embodiment of the muffler of the present invention.
Fig. 2 is an exploded view of the muffler of the present invention.
FIG. 3 is a graph comparing the muffling performance of a conventional muffler with that of a multi-resonance chamber muffler of the present invention.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Referring to fig. 1 and 2, the air conditioner of the present embodiment includes a silencer, which is a resonance chamber resistance silencer, the silencer includes a silencing cylinder 1, an inner insert tube assembly 2, and two partition plates 3, and the inner insert tube assembly 2 and the partition plates 3 are both installed inside the silencing cylinder 1. The 3 covers of baffle are established outside interpolation pipe assembly 2, and two baffles 3 arrange along the axial interval of amortization barrel 1, divide into a plurality of amortization cavities 11 with the inner chamber of amortization barrel 1, and the border of baffle 3 is connected with the internal perisporium of amortization barrel 1.
The silencing barrel 1 comprises an inlet transition section 12, a cylindrical section 13 and an outlet transition section 14 which are sequentially connected along the axial direction, and the inlet transition section 12 and the outlet transition section 14 are both in a circular truncated cone shape. The end of the inlet transition section 12 is provided with a barrel inlet 15 and the end of the outlet transition section 14 is provided with a barrel outlet 16.
The inner bayonet assembly 2 includes a first inner bayonet 21 and two second inner bayonets 22, the first inner bayonet 21 extending in the axial direction of the sound-deadening cylinder 1, and both ends of the first inner bayonet 21 projecting from the cylinder inlet 15 and the cylinder outlet 16 at both ends of the sound-deadening cylinder 1, respectively. The second inner tube 22 includes a first bent portion 221 and a second bent portion 222 arranged at an obtuse angle, the first bent portion 221 and the second bent portion 222 are arranged along the axial direction of the first inner tube 21, an inlet end 223 of the second inner tube 22 is located at an end of the first bent portion 221, and the inlet end 223 of the second inner tube 22 is connected to the first inner tube 21 at a position near the cylinder inlet 15. The outlet end 224 of the second inner cannula 22 is located at the end of the second fold 222 and the outlet end 224 of the second inner cannula 22 is connected to the first inner cannula 21 near the barrel outlet 16 and the second inner cannula 22 is in communication with the first inner cannula 21. The second inner tube 22 and the first inner tube 21 may be integrally formed or may be fixedly connected by a fixing means such as welding. When the two-way pipe inserting assembly is integrally formed, the partition plate 3 can be manufactured into two semicircular plates which are spliced together along the radial direction, so that the partition plate 3 is sleeved outside the inner pipe inserting assembly 2.
The partition board 3 is provided with a first through hole 31 and two second through holes 32, the first inner insert tube 21 passes through the first through hole 31, and the two second inner insert tubes 22 respectively pass through the corresponding second through holes 32, so that the partition board 3 is sleeved outside the inner insert tube assembly 2. The two second inner tubes 22 are symmetrically arranged with the axis of the first inner tube 21 as the central axis, and a plurality of muffling holes 20 are provided through the peripheral walls of the first inner tube 21 and the second inner tube 22.
As shown in fig. 3, the muffling performance of the multi-resonant cavity muffler of the present invention is significantly better than that of the existing general muffler, and the multi-resonant cavity muffler has significant advantages in both muffling amount and muffling frequency range, especially has considerable effective muffling amount in the frequency range of 0 to 3500 Hz. The first inner tube 21 and the second inner tube 22 are provided with the muffling holes 20, so that the inner tube assembly 2, the muffling holes 20, and the muffling cylinder 1 form a helmholtz resonator, and the muffling frequency of the resonance muffler is determined by the resonance muffler
It can be seen that the muffling frequency is related to the volume of the resonant cavity, so that a plurality of effective muffling frequencies can be obtained by reasonably designing the resonant cavity. The utility model discloses a muffler is through setting up intubate 21 in the first and two seconds 22 in intubate, has formed the main transfer route of three sound waves and divide into a plurality of different volume regions with the inner chamber of amortization barrel 1, secondly increases the volume of the inner chamber of amortization barrel 1 that further cuts apart at intracavity baffle 3.
From top to bottom, increase the sound wave transmission route through setting up many spinal branchs pipeline sections, the baffle is cut apart into a plurality of amortization cavities with the inner chamber of muffler, and the amortization cavity of different volumes can be obtained through quantity and the position of intubate and baffle in the adjustment, and then eliminate the corresponding frequency noise that meets in the actual engineering. The utility model provides a muffler is through cutting apart muffler intracavity volume and then realize widening the purpose of effective noise elimination frequency.
In addition, the number of the bent portions may be two or more. The included angle between the first bending part and the second bending part can be changed according to the requirement. The second inner cannula may also extend in a curve. The number of the second inner tubes may be two or more, and a plurality of the second inner tubes may surround the first inner tube around the first inner tube. The inner diameter, cross-sectional shape and material of the first inner insert tube and the second inner insert tube can be changed as required. The number, thickness, shape, material and position of the baffles can also be changed as required. The above changes also enable the object of the present invention to be achieved.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, and are not intended to limit the scope of the present invention, as those skilled in the art will appreciate that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the invention.
Claims (9)
1. The silencer comprises a silencing barrel and an inner inserting pipe assembly, wherein the inner inserting pipe assembly is installed inside the silencing barrel;
the method is characterized in that:
the inner insertion tube assembly comprises a first inner insertion tube and a second inner insertion tube, the first inner insertion tube extends along the axial direction of the noise reduction cylinder, and two ends of the first inner insertion tube respectively extend out of two ends of the noise reduction cylinder;
both ends of the second inner inserting tube are connected to the first inner inserting tube, and the second inner inserting tube is communicated with the first inner inserting tube;
a plurality of silencing holes are formed in the peripheral walls of the first inner inserting pipe and the second inner inserting pipe in a penetrating mode;
the silencer also comprises a partition board, the partition board is arranged in the silencing barrel and sleeved outside the inner inserting pipe assembly, and the partition board divides the inner cavity of the silencing barrel into a plurality of silencing chambers.
2. The muffler of claim 1, wherein:
the two ends of the silencing cylinder are respectively provided with a cylinder inlet and a cylinder outlet, the inlet end of the second inner inserting pipe is arranged close to the cylinder inlet, and the outlet end of the second inner inserting pipe is arranged close to the cylinder outlet.
3. The muffler of claim 2, wherein:
the silencing barrel comprises an inlet transition section, a cylindrical section and an outlet transition section which are sequentially connected along the axial direction, and the inlet transition section and the outlet transition section are both in a circular truncated cone shape;
the barrel inlet is located at the end of the inlet transition section, and the barrel outlet is located at the end of the outlet transition section.
4. The muffler according to any one of claims 1 to 3, wherein:
the number of the second inner tubes is two or more, and a plurality of the second inner tubes surround the first inner tube centering on the first inner tube.
5. The muffler according to any one of claims 1 to 3, wherein:
the second inner inserting tube comprises at least two bending parts arranged at an included angle.
6. The muffler according to any one of claims 1 to 3, wherein:
the number of the partition plates is more than two, and the partition plates are arranged at intervals along the axial direction of the silencing cylinder body.
7. The muffler according to any one of claims 1 to 3, wherein:
the partition plate is provided with a first through hole and a second through hole, the first inner insert tube passes through the first through hole, and the second inner insert tube passes through the second through hole.
8. The muffler according to any one of claims 1 to 3, wherein:
the edge of the partition board is connected with the inner peripheral wall of the silencing barrel.
9. An air conditioner characterized by comprising the muffler as recited in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023137751.8U CN213873158U (en) | 2020-12-23 | 2020-12-23 | Silencer and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023137751.8U CN213873158U (en) | 2020-12-23 | 2020-12-23 | Silencer and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213873158U true CN213873158U (en) | 2021-08-03 |
Family
ID=77044085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023137751.8U Active CN213873158U (en) | 2020-12-23 | 2020-12-23 | Silencer and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213873158U (en) |
-
2020
- 2020-12-23 CN CN202023137751.8U patent/CN213873158U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |