CN207393415U - A kind of muffler - Google Patents
A kind of muffler Download PDFInfo
- Publication number
- CN207393415U CN207393415U CN201721261051.5U CN201721261051U CN207393415U CN 207393415 U CN207393415 U CN 207393415U CN 201721261051 U CN201721261051 U CN 201721261051U CN 207393415 U CN207393415 U CN 207393415U
- Authority
- CN
- China
- Prior art keywords
- anechoic chamber
- right end
- muffler
- muffler body
- flax silk
- 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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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a kind of mufflers, including muffler body, left end is provided with air inlet inside the muffler body, and right end is provided with air outlet inside muffler body, super glass wool is filled with inside the muffler body, and muffler body left end is equipped with sounder resonator, second anechoic chamber right end is provided with the 3rd anechoic chamber, and the 3rd anechoic chamber's right end polyurethane foam plastics plate is installed, the polyurethane foam plastics plate right end is provided with air outlet, flax silk net is installed inside first anechoic chamber, and flax silk net left end is connected with foam rubber item, the flax silk net right end is connected with damping pipeline, and it is connected with the second anechoic chamber on the outside of damping pipeline, the damping pipeline right end is connected with the 3rd anechoic chamber, and the 3rd anechoic chamber be internally provided with sound-absorbing foam ball.The muffler structure is simply convenient for making, and the noise in the cold air that can be generated to refrigeration equipment carries out multistage effective noise reduction action, is bonded the use characteristic of refrigeration equipment.
Description
Technical field
The utility model is related to technical field of refrigeration equipment, are specially a kind of muffler.
Background technology
Muffler be prevent sound transmission and allow air-flow by a kind of device, be eliminate air power noise weight
Measure is wanted, muffler is mounted in air powered equipment (such as air blower, air compressor machine, boiler exhaust mouth, generator, water pump row
The larger equipment of gas port noise) gas channel on or reduction noise in inlet and exhaust system device, also need in refrigeration equipment
To use muffler.
Common muffler there are it is complicated, can only single-stage muffling, erasure effect is bad, and refrigeration equipment generate
It is that cold air entrainment noise is different with the hot gas entrainment noise of miscellaneous equipment, so as to cause noise pollution.
Utility model content
The purpose of this utility model is to provide a kind of muffler, to solve mentioned above in the background art common disappear
Sound device there are it is complicated, can only single-stage muffling, erasure effect is bad, and refrigeration equipment generate be cold air entrainment noise and
The hot gas entrainment noise of miscellaneous equipment is different, the problem of so as to cause noise pollution.
To achieve the above object, the utility model provides following technical solution：A kind of muffler, including muffler body,
Left end is provided with air inlet inside the muffler body, and right end is provided with air outlet, the noise reduction inside muffler body
Device body interior is filled with super glass wool, and muffler body left end is equipped with sounder resonator, and the muffler body inside is left
Side is provided with the first anechoic chamber, and is connected with the second anechoic chamber on the right side of the first anechoic chamber, and second anechoic chamber right end is provided with
3rd anechoic chamber, and the 3rd anechoic chamber's right end is equipped with polyurethane foam plastics plate, the polyurethane foam plastics plate right end is set
Air outlet is equipped with, flax silk net is installed, and flax silk net left end is connected with foam rubber item, the fiber crops inside first anechoic chamber
Silk screen right end is connected with damping pipeline, and damps and the second anechoic chamber is connected on the outside of pipeline, and the damping pipeline right end is connected with
3rd anechoic chamber, and the 3rd anechoic chamber is internally provided with sound-absorbing foam ball.
Preferably, the sounder resonator is truncated cone-shaped structure, and sounder resonator is seamless applying with muffler body by welding.
Preferably, the air inlet and air outlet diameter are equal, and the two axis is overlapped with muffler body, muffler
Main body inner wall is concave/convex-shaped structure.
Preferably, the damping pipeline is hexagonal structure, and the second anechoic chamber is superimposed at least 27 damping pipeline structures
Into honeycomb-type structural.
Preferably, the radius of a ball of the sound-absorbing foam ball is 1MM, and is disappeared in the 3rd anechoic chamber filled with total volume for the 3rd
The sound-absorbing foam ball of tone chamber's volume half.
Preferably, the flax silk is evenly distributed at least 20 foam rubber items, and foam rubber right end passes through on the net
Bonding is fixed structure with flax silk net.
Compared with prior art, the beneficial effects of the utility model are：The muffler structure is simply convenient for making, and can
Noise in the cold air generated to refrigeration equipment carries out multistage effective noise reduction action, is bonded the use characteristic of refrigeration equipment.This
Muffler is provided with the first anechoic chamber, the second anechoic chamber and the 3rd anechoic chamber, and multistage noise reduction can be carried out to the noise in cold air,
And this muffler is provided with the internal muffler body for being filled with super glass wool, can effectively completely cut off ambient temperature, ensures cold
Gas from ambient temperature influence.
Description of the drawings
Fig. 1 is the utility model main structure diagram；
Fig. 2 is A-A schematic cross-sectional views in the utility model Fig. 1；
Fig. 3 is enlarged structure schematic diagram at B in the utility model Fig. 1.
In figure：1st, sounder resonator, 2, air inlet, 3, muffler body, 4, super glass wool, 5, damping pipeline, 6, sound-absorbing bubble
Cotton balls, 7, polyurethane foam plastics plate, 8, air outlet, the 9, first anechoic chamber, 10, foam rubber item, 11, flax silk net, 12, second
Anechoic chamber, the 13, the 3rd anechoic chamber.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of muffler including muffler body 3, disappears
3 inside left end of sound device main body is provided with air inlet 2, and 3 inside right end of muffler body is provided with air outlet 8, air inlet 2 and goes out
8 diameter of air port is equal, and the two axis is overlapped with muffler body 3, and 3 inner wall of muffler body is concave/convex-shaped structure, this knot
Structure so that the intake of air inlet 2 is equal with the air output of air outlet 8, is not in the feelings that a large amount of wind are accumulated in sounder resonator 1
Condition, and make the cooling air distribution inside muffler body 3 uniform, increase the area that cold wind is hit with muffler body 3, consumption sound
Can, 3 inside of muffler body is filled with super glass wool 4, and 3 left end of muffler body is equipped with sounder resonator 1, and sounder resonator 1 is
Truncated cone-shaped structure, and sounder resonator 1 is seamless applying with muffler body 3 by welding, this structure causes refrigeration equipment to generate cold
Noise in wind, can be with the skew wall of sounder resonator 1 and muffler body 3 during air inlet 2 is entered from sounder resonator 1
Left wall, which occurs to hit, generates thermal energy, and so as to consume a part of acoustic energy, 3 inside left of muffler body is provided with the first anechoic chamber
9, and the right side of the first anechoic chamber 9 is connected with the second anechoic chamber 12,12 right end of the second anechoic chamber is provided with the 3rd anechoic chamber 13, and the
Three anechoic chambers, 13 right end is equipped with polyurethane foam plastics plate 7, and 7 right end of polyurethane foam plastics plate is provided with air outlet 8, and first
Flax silk net 11 is installed, and 11 left end of flax silk net is connected with foam rubber item 10, is uniformly distributed on flax silk net 11 inside anechoic chamber 9
There are at least 20 foam rubber items 10, and 10 right end of foam rubber item is fixed structure by bonding and flax silk net 11, this structure
So that after cold wind enters the first anechoic chamber 9, the foam rubber item 10 being connected with flax silk net 11, the 10 left end meeting of foam rubber item are blown
It swings back and forth and is hit with cold wind, the noise in cold wind can change into thermal energy by acoustic energy at this time, so as to tentatively realize noise reduction, flax silk net
11 right ends are connected with damping pipeline 5, and damp 5 outside of pipeline and be connected with the second anechoic chamber 12, and damping pipeline 5 is hexagon knot
Structure, and the second anechoic chamber 12 is superimposed at least 27 damping pipelines 5 and forms honeycomb-type structural, it is multiple that this structure so that cold wind passes through
When damping pipeline 5, pipeline 5 can be damped and be separated into multiply wind, increased cold wind with damping the contact area of pipeline 5, generate
More frictions have converted more acoustic energy, and damping 5 right end of pipeline is connected with the 3rd anechoic chamber 13, and in the 3rd anechoic chamber 13
Portion is provided with sound-absorbing foam ball 6, and the radius of a ball of sound-absorbing foam ball 6 is 1MM, and is the filled with total volume in the 3rd anechoic chamber 13
The sound-absorbing foam ball 6 of three anechoic chambers, 13 volume half, this structure cause cold wind into behind the 3rd anechoic chamber 13, can blow afloat quality compared with
Light sound-absorbing foam ball 6 makes it in the migration everywhere of the 3rd anechoic chamber 13, hits cold wind repeatedly and acoustic energy is changed into thermal energy.
Operation principle：It when using the muffler, first checks this muffler whether there is damage, starts to make if all are intact
With the sounder resonator 1 of this muffler is connected in the outlet of refrigeration equipment so that the cold wind that refrigeration equipment generates with noise together
Into sounder resonator 1, cold wind is entered by air inlet 2 in the first anechoic chamber 9 along the skew wall of sounder resonator 1, and cold wind hits bumps not
Flat 3 inner wall of muffler body consumes a part of acoustic energy, and super glass wool 4 has completely cut off extraneous temperature because of the heat-proof quality of its own
The influence to muffler body 3 is spent, cold wind blows foam rubber item 10 and rocked on flax silk net 11, and foam rubber item 10 is hit back and forth
It hits cold wind and the acoustic energy in cold wind is changed into the preliminary noise reduction of thermal energy progress, the cold wind after preliminary noise reduction enters in the second anechoic chamber 12
Damping pipeline 5 in, damping pipeline 5 separates cold wind, increases the friction area with cold wind, further consumes substantial amounts of
Acoustic energy in cold wind, cold wind blow sound-absorbing foam ball 6 into the 3rd anechoic chamber 13 so that sound-absorbing foam ball 6 is in the 3rd anechoic chamber
Migration is collided back and forth in 13, is thermal energy by the wind energy transformation in cold wind, and cold wind is gathered by polyurethane foam plastics plate 7, noise
Urethane plastic foamboard 7 absorbs isolation, is finally blown out by the cold wind of noise reduction from air outlet 8, so as to complete a series of activities.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, can still modify to the technical solution recorded in foregoing embodiments or to which part technical characteristic into
Row equivalent substitution, within the spirit and principle of the utility model, any modifications, equivalent replacements and improvements are made should all
It is included within the scope of protection of this utility model.
Claims (6)
1. a kind of muffler, including muffler body (3), it is characterised in that：The internal left end of the muffler body (3) is provided with
Air inlet (2), and the internal right end of muffler body (3) is provided with air outlet (8), is filled with inside the muffler body (3)
Super glass wool (4), and muffler body (3) left end is equipped with sounder resonator (1), muffler body (3) inside left is set
The first anechoic chamber (9) is equipped with, and the second anechoic chamber (12), second anechoic chamber (12) are connected on the right side of the first anechoic chamber (9)
Right end is provided with the 3rd anechoic chamber (13), and the 3rd anechoic chamber (13) right end is equipped with polyurethane foam plastics plate (7), described poly-
Urethane plastic foamboard (7) right end is provided with air outlet (8), and flax silk net (11) is equipped with inside first anechoic chamber (9), and
Flax silk net (11) left end is connected with foam rubber item (10), and flax silk net (11) right end is connected with damping pipeline (5), and damps
It is connected with the second anechoic chamber (12) on the outside of pipeline (5), described damping pipeline (5) right end is connected with the 3rd anechoic chamber (13), and the
Three anechoic chambers (13) are internally provided with sound-absorbing foam ball (6).
2. a kind of muffler according to claim 1, it is characterised in that：The sounder resonator (1) is truncated cone-shaped structure, and is collected
Sound cylinder (1) is seamless applying with muffler body (3) by welding.
3. a kind of muffler according to claim 1, it is characterised in that：The air inlet (2) and air outlet (8) diameter phase
Deng, and the two axis is overlapped with muffler body (3), muffler body (3) inner wall is concave/convex-shaped structure.
4. a kind of muffler according to claim 1, it is characterised in that：The damping pipeline (5) is hexagonal structure, and
Second anechoic chamber (12) is superimposed at least 27 damping pipelines (5) and forms honeycomb-type structural.
5. a kind of muffler according to claim 1, it is characterised in that：The radius of a ball of the sound-absorbing foam ball (6) is
1MM, and filled with the sound-absorbing foam ball (6) that total volume is the 3rd anechoic chamber (13) volume half in the 3rd anechoic chamber (13).
6. a kind of muffler according to claim 1, it is characterised in that：It is evenly distributed at least on the flax silk net (11)
20 foam rubber items (10), and foam rubber item (10) right end is fixed structure by bonding and flax silk net (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721261051.5U CN207393415U (en) | 2017-09-28 | 2017-09-28 | A kind of muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721261051.5U CN207393415U (en) | 2017-09-28 | 2017-09-28 | A kind of muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393415U true CN207393415U (en) | 2018-05-22 |
Family
ID=62330390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721261051.5U Expired - Fee Related CN207393415U (en) | 2017-09-28 | 2017-09-28 | A kind of muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393415U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141742A (en) * | 2019-05-31 | 2019-08-20 | 广州市山崎生物技术有限公司 | Atomizer denoising device |
| CN111577674A (en) * | 2020-06-19 | 2020-08-25 | 连云港市造远机械设备有限公司 | Pipeline end fan silencer |
| US11434929B2 (en) | 2019-08-02 | 2022-09-06 | Techtronic Cordless Gp | Blowers having noise reduction features |
| US11778960B2 (en) | 2020-01-21 | 2023-10-10 | Techtronic Cordless Gp | Blowers |
| US11817073B2 (en) | 2020-01-21 | 2023-11-14 | Techtronic Cordless Gp | Power tool having noise reduction features |
-
2017
- 2017-09-28 CN CN201721261051.5U patent/CN207393415U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141742A (en) * | 2019-05-31 | 2019-08-20 | 广州市山崎生物技术有限公司 | Atomizer denoising device |
| US11434929B2 (en) | 2019-08-02 | 2022-09-06 | Techtronic Cordless Gp | Blowers having noise reduction features |
| US11841023B2 (en) | 2019-08-02 | 2023-12-12 | Techtronic Cordless Gp | Blowers having noise reduction features |
| US11778960B2 (en) | 2020-01-21 | 2023-10-10 | Techtronic Cordless Gp | Blowers |
| US11817073B2 (en) | 2020-01-21 | 2023-11-14 | Techtronic Cordless Gp | Power tool having noise reduction features |
| CN111577674A (en) * | 2020-06-19 | 2020-08-25 | 连云港市造远机械设备有限公司 | Pipeline end fan silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20180928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |