CN205842997U - A kind of on-board air conditioner motor acoustic filter - Google Patents
A kind of on-board air conditioner motor acoustic filter Download PDFInfo
- Publication number
- CN205842997U CN205842997U CN201620701803.4U CN201620701803U CN205842997U CN 205842997 U CN205842997 U CN 205842997U CN 201620701803 U CN201620701803 U CN 201620701803U CN 205842997 U CN205842997 U CN 205842997U
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- Prior art keywords
- noise elimination
- sound
- air conditioner
- triangle
- acoustic filter
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Abstract
The utility model discloses a kind of on-board air conditioner motor acoustic filter, including muffler shell, first noise elimination cavity, second noise elimination cavity, the inside of described muffler shell is provided with noise elimination cotton interlayer, the lower section of described noise elimination cotton interlayer is provided with the first noise elimination cavity, the side of described first noise elimination cavity is provided with the second noise elimination cavity, absorb sound while two kinds of noise elimination cavities, under the effect eliminated the noise, intensity of sound significantly reduces, eventually pass through the further weakening of noise elimination cotton interlayer, again reduce noise, the both sides of described muffler shell are provided with radiating tube, help the heat that on-board air conditioner elimination work produces.
Description
Technical field
This utility model relates to acoustic filter technical field, is specially a kind of on-board air conditioner motor acoustic filter.
Background technology
Silencer for air conditioner is to make an uproar to eliminate the air-flow that in pipeline, pulse pneumatic flowing produces during compressor operating
Sound, the acoustic filter that current air-conditioning is conventional is usually reactive muffler, is the sound utilizing device in pipeline at acoustical behavior sudden change
Reflection, expansion suddenly, contraction by pipeline section produce acoustic impedance mismatch, make the sound wave of some frequency dash forward at acoustic impedance
The phenomenons such as the interface become is reflected, interference, sound wave cancels out each other the purpose reaching to eliminate the noise.
The acoustic filter that air-conditioning is conventional at present is single-unit expansion muffler, due to cost and performance requirement, it is impossible to by single-unit
It is the longest that expanding deafener designs, and therefore frequency is much passed through in the acoustic filter existence of the type.During operation of air conditioner, pulsation
The noise that air current flow produces mostly is the noise of medium-high frequency, and this acoustic filter is unsatisfactory to reducing pulse pneumatic hydrodynamic noise, because of
This single reactive muffler effect can not fully meet and be actually needed.
Utility model content
The purpose of this utility model is to provide a kind of on-board air conditioner motor acoustic filter, to solve in above-mentioned background technology
The problem proposed.
For achieving the above object, this utility model following technical scheme of offer: a kind of on-board air conditioner motor acoustic filter, bag
Including muffler shell, the first noise elimination cavity, the second noise elimination cavity, the lower section of described muffler shell is provided with one layer of noise elimination cotton interlayer, institute
The lower section stating noise elimination cotton interlayer is provided with the first noise elimination cavity, and the side of described first noise elimination cavity is provided with the second noise elimination cavity, described noise elimination
The both sides of device shell are provided with radiating tube.
Preferably, the inside of described first noise elimination cavity is provided with the triangle that just absorbs sound, and the described side just absorbing sound triangle is provided with down
Sound absorption triangle, the described triangle that just absorbing sound, the tip of suck-back sound triangle are provided with sound absorption guide hole.
Preferably, being provided with sound absorption circular hole inside described second noise elimination cavity, the centre of described sound absorption circular hole is provided with absorbing duct.
Preferably, the described triangle that just absorbing sound, suck-back sound triangle are isosceles triangle, and top foot is 30 °, base angle is 75 °.
Preferably, described noise elimination cotton interlayer thickness 10mm-12mm.
Preferably, a diameter of 3mm-5mm of described absorbing duct.
Preferably, described heat radiation pipe range 18mm-20mm.
Preferably, described sound absorption Circularhole diameter is 1mm-2mm.
Compared with prior art, the beneficial effects of the utility model are:
(1) equipped with the first noise elimination cavity and the second noise elimination cavity below muffler shell, the first noise elimination cavity and second is eliminated the noise
Chamber is spaced, is tentatively absorbed sound into by the noise that vehicle-mounted today produces, and has the trigonometric sum that just absorbing sound to fall inside the first noise elimination cavity
Sound absorption triangle, two kinds of sound absorption triangles after attenuating noise, partly do not have the noise that can be completely eliminated in noise transmittance process
Being weakened further by the noise elimination cotton interlayer under noise elimination shell, in the case of this Double-noise-reduction, noise is well eliminated.
(2) both sides at muffler shell are provided with suction radiating tube, and radiating tube is for producing air-conditioning in the course of the work
Heat is discharged in time, allows air-conditioning be in the working range of a normal temperature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the first noise elimination cavity structural representation of the present utility model；
Fig. 3 is the second noise elimination cavity structural representation of the present utility model.
In figure: 1, muffler shell 2, noise elimination cotton interlayer；3, the first noise elimination cavity；4, the second noise elimination cavity；5, radiating tube；6, just
Sound absorption triangle；7, suck-back sound triangle；8, sound absorption guide hole；9, sound absorption circular hole；10, absorbing duct.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Referring to Fig. 1, a kind of technical scheme of this utility model offer: a kind of on-board air conditioner motor acoustic filter, including disappearing
Sound device shell the 1, first noise elimination cavity the 3, second noise elimination cavity 4, is provided with one layer of noise elimination cotton interlayer 2 in the lower section of muffler shell 1, eliminates the noise
The thick 10mm-12mm of cotton interlayer 2, is provided with the first noise elimination cavity 3, is provided with in the side of the first noise elimination cavity 3 in the lower section of noise elimination cotton interlayer 2
Second noise elimination cavity 4, is provided with radiating tube 5, the long 18mm-20mm of radiating tube 5 in the both sides of muffler shell 1.
Refer to Fig. 2, or Fig. 3, be provided with, in the inside of the first noise elimination cavity 3, the triangle 6 that just absorbs sound, at the one of the triangle 6 that just absorbs sound
Side is provided with suck-back sound triangle 7, is provided with sound absorption guide hole 8 in the tip of the triangle 6 that just absorbs sound, suck-back sound triangle 7.
Being provided with sound absorption circular hole 9 inside the second noise elimination cavity 4, absorb sound a diameter of 1mm-2mm of circular hole 9, in sound absorption circular hole 9
Between be provided with absorbing duct, a diameter of 3mm-5mm of absorbing duct 10, is isosceles triangle at the triangle 6 that just absorbs sound, suck-back sound triangle 7, top
Foot is 30 °, base angle is 75 °.
Equipped with the first noise elimination cavity 3 and the second noise elimination cavity 4 below muffler shell 1, the first noise elimination cavity 3 and second is eliminated the noise
Chamber 4 is spaced, is tentatively absorbed sound into by the noise that vehicle-mounted today produces, and has triangle 6 He that just absorbs sound inside the first noise elimination cavity 3
Suck-back sound triangle 7, two kinds of sound absorption triangles after attenuating noise, partly do not have can be completely eliminated to make an uproar in noise transmittance process
Sound is weakened further by the noise elimination cotton interlayer 2 under shell of eliminating the noise, and in the case of this Double-noise-reduction, noise is well disappeared
Remove.
Embodiment the most of the present utility model, for the ordinary skill in the art,
It is appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can be carried out multiple change, repair
Changing, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. an on-board air conditioner motor acoustic filter, including muffler shell (1), the first noise elimination cavity (3), the second noise elimination cavity (4)
It is characterized in that: the lower section of described muffler shell (1) is provided with one layer of noise elimination cotton interlayer (2), under described noise elimination cotton interlayer (2)
Side is provided with the first noise elimination cavity (3), and the side of described first noise elimination cavity (3) is provided with the second noise elimination cavity (4), described muffler shell
(1) both sides are provided with radiating tube (5).
A kind of on-board air conditioner motor acoustic filter the most according to claim 1, it is characterised in that: described first noise elimination cavity
(3) inside is provided with the triangle that just absorbs sound (6), and the described side just absorbing sound triangle (6) is provided with suck-back sound triangle (7), described just inhales
Sound triangle (6), the tip of suck-back sound triangle (7) are provided with sound absorption guide hole (8).
A kind of on-board air conditioner motor acoustic filter the most according to claim 1, it is characterised in that: described second noise elimination cavity
(4) inside is provided with sound absorption circular hole (9), and the centre of described sound absorption circular hole (9) is provided with absorbing duct.
A kind of on-board air conditioner motor acoustic filter the most according to claim 2, it is characterised in that: the described triangle that just absorbing sound
(6), suck-back sound triangle (7) be isosceles triangle, top foot is 30 °, base angle is 75 °.
A kind of on-board air conditioner motor acoustic filter the most according to claim 1, it is characterised in that: described noise elimination cotton interlayer
(2) thick 10mm-12mm.
A kind of on-board air conditioner motor acoustic filter the most according to claim 3, it is characterised in that: described absorbing duct (10)
A diameter of 3mm-5mm.
A kind of on-board air conditioner motor acoustic filter the most according to claim 1, it is characterised in that: described radiating tube (5) is long
18mm-20mm。
A kind of on-board air conditioner motor acoustic filter the most according to claim 3, it is characterised in that: described sound absorption circular hole (9)
A diameter of 1mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620701803.4U CN205842997U (en) | 2016-07-06 | 2016-07-06 | A kind of on-board air conditioner motor acoustic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620701803.4U CN205842997U (en) | 2016-07-06 | 2016-07-06 | A kind of on-board air conditioner motor acoustic filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205842997U true CN205842997U (en) | 2016-12-28 |
Family
ID=58151122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620701803.4U Expired - Fee Related CN205842997U (en) | 2016-07-06 | 2016-07-06 | A kind of on-board air conditioner motor acoustic filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205842997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202199A (en) * | 2021-04-19 | 2021-08-03 | 黄山学院 | Designable combined hole sound absorption material |
-
2016
- 2016-07-06 CN CN201620701803.4U patent/CN205842997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202199A (en) * | 2021-04-19 | 2021-08-03 | 黄山学院 | Designable combined hole sound absorption material |
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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: 20161228 Termination date: 20210706 |