CN202902574U - Air conditioner exhaust silencing device - Google Patents
Air conditioner exhaust silencing device Download PDFInfo
- Publication number
- CN202902574U CN202902574U CN 201220588377 CN201220588377U CN202902574U CN 202902574 U CN202902574 U CN 202902574U CN 201220588377 CN201220588377 CN 201220588377 CN 201220588377 U CN201220588377 U CN 201220588377U CN 202902574 U CN202902574 U CN 202902574U
- Authority
- CN
- China
- Prior art keywords
- pipe arrangement
- cavity
- air
- access tube
- conditioner
- 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 - Lifetime
Links
Images
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses an air conditioner exhaust silencing device which comprises a silencer cavity, a first piping and a second piping. A first connecting pipe and a second connecting pipe are disposed at two ends of the silencer cavity respectively. One end of the first piping is communicated with an exhaust pipe of a compressor. The other end of the first piping is inserted into the silencer cavity from the first connecting pipe. The insertion joint between the first piping and the first connecting pipe is sealed. One end of the second piping is inserted into the silencer cavity from the second connecting pipe. The other end of the second piping is communicated with an exhaust circulating system pipeline of the compressor. The insertion joint between the second piping and the second connecting pipe is sealed. The silencing device is capable of silencing according to specific frequency range, small in size and low in production cost.
Description
Technical field
The utility model relates to air-conditioner exhaust noise silencing parts, is specially a kind of exhaust muffling device for air-conditioner.
Background technology
Air-conditioner is in design process, because tank material, two device areas, compressor capacity, kind and characteristic, PIPING DESIGN, system debug coupling etc. problem, may cause the excessive or pipeline vibration of gas exhaust piping airflow noise, can be delivered to indoor set by tube connector when serious, produce abnormal sound, affect user's comfortableness.When this situation occurred, the most frequently used means were to increase muffler at gas exhaust piping.If unusual serious airflow noise appears in gas exhaust piping, then adopt two silencer series connection or the larger muffler of volume to carry out the elimination of noise.Because solder joint increases, can increase the hidden danger that causes flow leakage because of failure welding during two silencer series connection.Notification number is that the patent of CN201589393U discloses a kind of exhaust muffling device for air-conditioner, it comprises the first compressor exhaust pipe, muffler, the second compressor exhaust pipe, and the first compressor exhaust pipe and the second compressor exhaust pipe are installed in respectively the two ends of muffler by welding procedure.Wherein the middle part of muffler is variable diameter design, and the diameter at muffler middle part is 0.25～0.4 times of two ends barrel diameter.Aforesaid exhaust muffling device for air-conditioner although avoided two muffler series connection, has been saved material and space, and the variable diameter design at muffler middle part is because complex structure is difficult for the difficult control of processing and product specification characteristic.And above-mentioned two kinds of silencing means namely allow to eliminate largely the noise in the discharge duct, but still can not eliminate for the noise of some CF.Above-mentioned two kinds of mufflers all can't be installed in less casing because volume is larger simultaneously.
As from the foregoing, be necessary to provide a kind of and can eliminate CF and small volume, exhaust muffling device for air-conditioner that production cost is not high.
The utility model content
Utility model purpose of the present utility model has been to provide a kind of can eliminate CF and small volume, exhaust muffling device for air-conditioner that production cost is not high.
According to the utility model embodiment, a kind of exhaust muffling device for air-conditioner is provided, a kind of exhaust muffling device for air-conditioner comprises: muffler cavity, the first pipe arrangement and the second pipe arrangement;
Wherein, described muffler cavity two ends arrange respectively the first access tube and the second access tube;
One end of the first pipe arrangement is communicated with the air inlet of compressor exhaust pipe, and the other end is inserted into the described muffler cavity from the first access tube, the splicing position sealing between the first pipe arrangement and the first access tube;
One end of the second pipe arrangement is inserted into the described muffler cavity from the second access tube, the other end and compressor air-discharging circulatory system pipeline connection, the splicing position sealing between the second pipe arrangement and the second access tube;
Special frequency channel in the sound wave that described muffler cavity produces vibration of compressor is eliminated.
Wherein, described muffler cavity specifically comprises:
For the silencing cavity that abates the noise, and the import flaring chamber and the outlet convergent chamber that are arranged at respectively described silencing cavity two ends;
The heavy caliber end in described import flaring chamber is connected with described silencing cavity, and its small-caliber end is fixedly connected with the first access tube;
The heavy caliber end in described outlet convergent chamber is connected with described silencing cavity, and its small-caliber end is fixedly connected with the second access tube.
As preferably, the length that the first pipe arrangement and the second pipe arrangement are inserted into described silencing cavity is adjustable.
Further, to insert the length of described silencing cavity be that the length that 1/2, the second pipe arrangement of described silencing cavity length inserts described silencing cavity is 1/4 of described silencing cavity length to the first pipe arrangement.
As preferably, the first access tube and described import flaring chamber are one-body molded, and the second access tube and described outlet convergent chamber are one-body molded.
Wherein, the flaring form in described import flaring chamber is straight line flaring or curve flaring;
The convergent form in described outlet convergent chamber is straight line convergent or curve convergent.
As preferably, the splicing position of the first pipe arrangement and the first access tube passes through Welding;
The splicing position of the second pipe arrangement and the second access tube passes through Welding.
One end of the first pipe arrangement and the air inlet of compressor exhaust pipe pass through Welding;
The other end of the second pipe arrangement and compressor air-discharging circulatory system pipeline pass through Welding.
Preferably, be equipped with witness marker on the first pipe arrangement and the second pipe arrangement, be used for the length that mark the first pipe arrangement and the second pipe arrangement insert silencing cavity.
Preferably, the body that the second pipe arrangement inserts muffler cavity inside is provided with spill port, and described spill port is through hole, is used for the trapped fuel of muffler cavity inside is drained into compressor air-discharging circulatory system pipeline.
Preferably, the material of described muffler cavity is iron, and the material of the first pipe arrangement and the second pipe arrangement is red copper.
As shown from the above technical solution, muffler assembly in the utility model can be realized carrying out noise reduction according to special frequency channel by the length of regulating silencing cavity, inserts the length of silencing cavity with the periodic vibration sound wave filtering in the vibration of compressor sound wave by regulating the first pipe arrangement and the second pipe arrangement simultaneously.Because muffler cavity only needs a cavity just can realize good erasure effect in the utility model, therefore have advantages of that volume is little, production cost is low.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art.Apparently, the accompanying drawing in below describing only is embodiment more of the present utility model, for those of ordinary skills, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 shows the structural representation of exhaust muffling device for air-conditioner in the utility model;
Fig. 2 shows the structural representation of muffler cavity in the utility model;
Fig. 3 shows the structural representation that the first pipe arrangement inserts silencing cavity;
Fig. 4 shows the structural representation that the first pipe arrangement inserts silencing cavity;
Fig. 5 shows the structural representation that the first pipe arrangement and the second pipe arrangement all insert silencing cavity.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Fig. 1 shows the structure principle chart of exhaust muffling device for air-conditioner in the utility model.As shown in Figure 1, exhaust muffling device for air-conditioner comprises muffler cavity 1, the first pipe arrangement 2 and the second pipe arrangement 3.
Fig. 2 shows the structural representation of muffler cavity 1.As shown in Figure 2, the two ends of muffler cavity 1 are respectively equipped with the first access tube 101 and the second access tube 102.Muffler cavity 1 comprises the silencing cavity 105 that can effectively abate the noise and the import flaring chamber 103 and the outlet convergent chamber 104 that is connected connecting the second access tube 102 that are used for connecting the first access tube 101 that are connected described silencing cavity 105 two ends.The first access tube 101 is fixedly connected with import flaring chamber 103; The second access tube 102 is fixedly connected with outlet convergent chamber 104.Preferably, among the embodiment in the utility model, the first access tube 101 is one-body molded with import flaring chamber 103; The second access tube 102 is one-body molded with outlet convergent chamber 104.
Wherein, the flaring form in import flaring chamber 103 is straight line flaring or curve flaring.The convergent form in outlet convergent chamber 104 is straight line convergent or curve convergent.According to Production requirement or the decision of other particular requirements, usually, import flaring chamber 103 and outlet convergent chamber 104 are in a symmetrical arrangement in silencing cavity 105 both sides by the technical staff for the convergent form in the flaring form in import flaring chamber 103 and outlet convergent chamber 104.The flaring form in import flaring chamber 103 is that the convergent form in straight line flaring, outlet convergent chamber 104 is that the straight line convergent just illustrates among the utility model embodiment, but import flaring chamber 103 is not limited to the straight line flaring, exports the form that convergent chamber 104 is not limited to the straight line convergent.
The first pipe arrangement 2 is the siphunculus of hollow.One end of the first pipe arrangement is connected with the air inlet of compressor exhaust pipe, and the other end is inserted in the muffler cavity 1 by the first access port 101.Wherein,
The first pipe arrangement 2 is specially with the connected mode of the air inlet of compressor exhaust pipe: the air inlet of compressor exhaust pipe is inserted in the first pipe arrangement 2, and the air inlet of compressor exhaust pipe inserts the outer surface of part of the first pipe arrangement 2 and the inner surface of the first pipe arrangement 2 passes through Welding.
The connected mode of the first pipe arrangement 2 and the first access tube 101 is specially: the splicing position between the first pipe arrangement 2 and the first access tube 101 passes through sealed with brazing.Wherein, the splicing position between the first pipe arrangement 2 and the first access tube 101 is the gap between the inner surface of the outer surface of the first pipe arrangement 2 part of running through the first access tube 101 and the first access tube.
The second pipe arrangement 3 is the siphunculus of hollow.One end of the second pipe arrangement is inserted in the muffler cavity 1 by the second access port 102, the other end and compressor air-discharging circulatory system pipeline connection.Wherein,
The second pipe arrangement 3 is by welding procedure and the welding of exhaust circulating system pipeline.Preferably, the second pipe arrangement 3 is by soldering and the welding of compressor air-discharging circulatory system pipeline.
The second pipe arrangement 3 is specially with the connected mode of compressor air-discharging circulatory system pipeline: the part of compressor air-discharging circulatory system pipeline is inserted in the second pipe arrangement 3, and compressor air-discharging circulatory system pipeline inserts that a part of outer surface of the second pipe arrangement 2 and the inner surface of the first pipe arrangement 2 passes through Welding.
The connected mode of the second pipe arrangement 3 and the second access tube 102 is specially: the splicing position between the second pipe arrangement 3 and the second access tube 102 passes through sealed with brazing.Wherein, the splicing position between the second pipe arrangement 3 and the second access tube 102 is the gap between the inner surface of the outer surface of the second pipe arrangement 3 part of running through the second access tube 102 and the second access tube 102.
The length of the silencing cavity 105 of the first pipe arrangement 2 insertion muffler cavities 1 and the second pipe arrangement 3 insert the adjustable in length of the silencing cavity 105 of muffler cavities 1.Further, the length of the silencing cavity 105 of the length of the silencing cavity 105 of the first pipe arrangement 2 insertion muffler cavities 1 and the second pipe arrangement 3 insertion muffler cavities 1 is proportional, particularly, the length ratio of the length of the first pipe arrangement 2 insertion silencing cavity 105 and the second pipe arrangement 3 insertion silencing cavity 105 is 2:1.By the first pipe arrangement 2 and the second pipe arrangement 3 are inserted in the silencing cavity of muffler cavity 1, can make the muffler assembly in the utility model carry out noise reduction according to special frequency channel.Insert the length of silencing cavity 105 and the length ratio that the second pipe arrangement 3 inserts silencing cavity 105 by regulating the first pipe arrangement 2 simultaneously, can with periodically eliminating by frequency, reach good erasure effect
Preferably, be equipped with witness marker 4 on the first pipe arrangement 2 and the second pipe arrangement 3, in order to the length in accurate control the first pipe arrangement 2 and the second pipe arrangement 3 insertion silencing cavity 105, as shown in Figure 1.Wherein, witness marker 4 can be graduation mark, round dot or asterisk.The shape of the witness marker 4 of lifting in the present embodiment is exemplary, and every pattern that can play mark action all falls into the scope of utility model.
Further, the second pipe arrangement 3 is provided with spill port 5 at the body that inserts muffler cavity 1 inside, be positioned at outlet convergent chamber 104, and this spill port 5 is through hole.Because silencing means vertically arranges in discharge duct.The first pipe arrangement 2 is arranged at the top of silencing means, and the second pipe arrangement 3 is arranged at the bottom of silencing means.The exhaust of compressor enters into muffler cavity 1 through the first pipe arrangement 2, owing to can be mingled with the oil of trace in the gas that compressor discharges when exhaust, after silencing means was long between in use, muffler cavity 1 bottom just trapped fuel can occur, affects the erasure effect of silencing means.Therefore the body that inserts muffler cavity 1 at the second pipe arrangement 3 arranges spill port 5, the trapped fuel of muffler cavity 1 bottom can be got back in the compressor air-discharging circulatory system to greatest extent and be gone, and makes silencing means remain good erasure effect.
Further, spill port 5 and witness marker 4 are arranged at the same side of the second pipe arrangement 3, and the center of the center of spill port 5 and witness marker 4 is on same straight line.On same straight line, when welding the second pipe arrangement 3 and the second access tube 102, scolder is laid at 4 places in right amount at witness marker like this with the center of the center of spill port 5 and witness marker 4, and scolder too much flows down the obstruction spill port along the second pipe arrangement 3 when avoiding welding.
By the first pipe arrangement 2 and the second pipe arrangement 3 are inserted in the silencing cavity of muffler cavity 1, can make the muffler assembly in the utility model carry out noise reduction according to special frequency channel.It is 2:1 that the length of the first pipe arrangement 2 insertion silencing cavity 105 and the length ratio of the second pipe arrangement 3 insertion silencing cavity 105 are set simultaneously, and the periodicity in the sound wave that vibration of compressor can be produced is eliminated by frequency, reaches good erasure effect.In the utility model, special frequency channel is the corresponding frequency range of noise that those skilled in the art person wants filtering in the sound wave that produces of vibration of compressor.
The below can be described in detail for the principle that special frequency channel is carried out noise reduction the silencing means in the utility model.
In the utility model, the sectional area of the silencing cavity 105 of muffler cavity 1 is S
1, the sectional area of the first pipe arrangement 2 is S
2, the length of silencing cavity 105 is l in the muffler cavity 1.Then the divergence ratio m of silencing means is in the utility model:
M=S
1/ S
2(formula 1)
The computing formula of the sound-damping qualities of silencing means is:
Wherein,
K is wave number:
(formula 3)
λ is the sound wave wavelength under the gas temperature: λ=c/f in silencing means.(formula 4)
C is the velocity of sound (speed that sound wave is propagated in the refrigerant that is used for the air-conditioner refrigeration);
F is the frequency of sound wave.
From formula 2, can find out, work as sin
2During kl=1, sound-damping qualities has maximum.At this moment
Can be got by formula 3 and 4:
Thereby can get maximum noise reduction frequency:
(formula 5)
By formula 5 as can be known, if the length l of silencing cavity 105 increases in the muffler cavity 1, the maximum frequency of noise elimination f of silencing means then
nThen move to low frequency.Because the common noise of air-conditioner often concentrates on the lower frequency band, therefore will need the frequency substitution formula 5 of the noise eliminated just can calculate the length l of silencing cavity 105 in the muffler cavity 1.The silencing means that utilization calculates silencing cavity 105 length just can carry out noise reduction for CF.
Although but the above-mentioned silencing means that CF is carried out noise reduction by calculating silencing cavity 105 length has good acoustic attenuation performance to specific frequency, can exist periodicity by the problem of frequency, specifically drawn by formula 2:
When kl=n π (n=0,1,2 ...) time, Δ Lw=0, namely silencing means is f for frequency
n=nc/2l
1(n=0,1,2 ...) sound wave do not eliminate the noise, be f thereby cause these frequencies
n=nc/2l
1Sound wave directly spread out of without just reducing.
Therefore, the frequency that muffler leaked is periodically leaked sound wave, and the frequency of periodically leaking sound wave is f
n=nc/2l.Leaked and periodically leaked this shortcoming of sound wave in order to overcome muffler, and adopted the method that the first pipe arrangement 2 and the second pipe arrangement 3 are inserted in the muffler cavities 1 to solve in the utility model.
Fig. 3 shows the structural representation of silencing cavity 105 interior insertion first pipe arrangements 2 of muffler cavity 1, and wherein, the length of silencing cavity 105 is l in the muffler cavity 1
1, the length of the first pipe arrangement 2 is l
2The sound-damping qualities that inserts the first pipe arrangement 2 rear silencing means is:
Wherein,
(formula 7)
(formula 8)
In the formula, P
Enter-silencer incident sound pressure;
P
Thoroughly-silencer transmission acoustic pressure;
M-divergence ratio.
From formula 7,8 as can be known, when the length l of the first pipe arrangement 2
2Be l
1/ 2, kl
1=(2n+1) π, (n=0,1,2 ...) time, this moment Δ Lw ≠ 0.Because Δ Lw ≠ 0 illustrates that then this silencing means is f for frequency
n=nc/2l
1The sound wave of (n is the odd number greater than 0) can play subdues effect.Therefore at muffler cavity 1 interior insertion the first pipe arrangement, can eliminate frequency
The odd number part of n in (n is the integer greater than 0).
Fig. 4 shows the structural representation of silencing cavity 105 interior insertion first pipe arrangements 2 of muffler cavity 1, and wherein, the length of silencing cavity 105 is l in the muffler cavity 1
1, the length of the first pipe arrangement 2 is l
3Insert the sound-damping qualities of the second pipe arrangement 3 rear silencing means with formula 6,7,8.Repeat no more herein.By from formula 7,8 formulas as can be known, when the length of the second pipe arrangement 3 is l
1/ 4, kl
1=2n π (n=0,1,2 ...) time, this moment Δ Lw ≠ 0.Because Δ Lw ≠ 0 illustrates that this silencing means is f for frequency
n=nc/2l
1The sound wave of (n is the even number greater than 0) can play subdues effect.Therefore, at muffler cavity 1 interior insertion the second pipe arrangement, can eliminate and pass through frequency
The even number part of n in (n is the integer greater than 0).
Thus, insert the first pipe arrangement 2 and the second pipe arrangement 3 in the utility model in the muffler cavity 1 of silencing means, and the first pipe arrangement 2 and the second pipe arrangement 3 insert length in the silencing cavity 105 be respectively silencing cavity 105 length 1/2 and 1/4, as shown in Figure 5.Therefore the silencing means in the utility model not only can be with the sound wave filtering of CF, also can will periodically leak overfrequency by the first pipe arrangement 2 and the second pipe arrangement 3 and eliminate, thereby make the silencing means in the utility model carry out noise reduction and to have good erasure effect for CF.
The length of the first pipe arrangement 2 and the second pipe arrangement 3 can be the same or different in the utility model.The length of the first pipe arrangement 2 and the second pipe arrangement 3 is decided according to Production requirement or design by the staff of the art.In the utility model embodiment, the first pipe arrangement 2 is different with the length of the second pipe arrangement 3.
Among the embodiment of the present utility model, the material of muffler cavity 1 is iron in the silencing means, and the material of the first pipe arrangement 2 and the second pipe arrangement 3 is red copper, can reduce to greatest extent like this manufacturing cost of silencing means, is conducive to batch production.
The above is preferred embodiment of the present utility model only, is not be used to limiting protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. an exhaust muffling device for air-conditioner comprises: muffler cavity, the first pipe arrangement and the second pipe arrangement;
Wherein, described muffler cavity two ends arrange respectively the first access tube and the second access tube;
One end of the first pipe arrangement is communicated with the air inlet of compressor exhaust pipe, and the other end is inserted into the described muffler cavity from the first access tube, the splicing position sealing between the first pipe arrangement and the first access tube;
One end of the second pipe arrangement is inserted into the described muffler cavity from the second access tube, the other end and compressor air-discharging circulatory system pipeline connection, the splicing position sealing between the second pipe arrangement and the second access tube;
Special frequency channel in the sound wave that described muffler cavity produces vibration of compressor is eliminated.
2. exhaust muffling device for air-conditioner as claimed in claim 1 is characterized in that, described muffler cavity specifically comprises:
For the silencing cavity that abates the noise, and the import flaring chamber and the outlet convergent chamber that are arranged at respectively described silencing cavity two ends;
The heavy caliber end in described import flaring chamber is connected with described silencing cavity, and its small-caliber end is fixedly connected with the first access tube;
The heavy caliber end in described outlet convergent chamber is connected with described silencing cavity, and its small-caliber end is fixedly connected with the second access tube.
3. exhaust muffling device for air-conditioner as claimed in claim 2 is characterized in that, the length that the first pipe arrangement and the second pipe arrangement are inserted into described silencing cavity is adjustable.
4. exhaust muffling device for air-conditioner as claimed in claim 3 is characterized in that, the length that the first pipe arrangement inserts described silencing cavity is that the length that 1/2, the second pipe arrangement of described silencing cavity length inserts described silencing cavity is 1/4 of described silencing cavity length.
5. exhaust muffling device for air-conditioner as claimed in claim 2 is characterized in that, the first access tube and described import flaring chamber are one-body molded, and the second access tube and described outlet convergent chamber are one-body molded.
6. exhaust muffling device for air-conditioner as claimed in claim 2 is characterized in that,
The flaring form in described import flaring chamber is straight line flaring or curve flaring;
The convergent form in described outlet convergent chamber is straight line convergent or curve convergent.
7. exhaust muffling device for air-conditioner as claimed in claim 1 is characterized in that,
The splicing position of the first pipe arrangement and the first access tube passes through Welding;
The splicing position of the second pipe arrangement and the second access tube passes through Welding.
One end and the compressor exhaust pipe of the first pipe arrangement pass through Welding;
The other end of the second pipe arrangement and compressor air-discharging circulatory system pipeline pass through Welding.
8. exhaust muffling device for air-conditioner as claimed in claim 1 is characterized in that, is equipped with witness marker on the first pipe arrangement and the second pipe arrangement, is used for the length that mark the first pipe arrangement and the second pipe arrangement insert silencing cavity.
9. exhaust muffling device for air-conditioner as claimed in claim 1, it is characterized in that, the body that the second pipe arrangement inserts muffler cavity inside is provided with spill port, and described spill port is through hole, is used for the trapped fuel of muffler cavity inside is drained into compressor air-discharging circulatory system pipeline.
10. exhaust muffling device for air-conditioner as claimed in claim 1 is characterized in that, the material of described muffler cavity is iron, and the material of the first pipe arrangement and the second pipe arrangement is red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588377 CN202902574U (en) | 2012-11-08 | 2012-11-08 | Air conditioner exhaust silencing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588377 CN202902574U (en) | 2012-11-08 | 2012-11-08 | Air conditioner exhaust silencing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202902574U true CN202902574U (en) | 2013-04-24 |
Family
ID=48123234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220588377 Expired - Lifetime CN202902574U (en) | 2012-11-08 | 2012-11-08 | Air conditioner exhaust silencing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202902574U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927675A (en) * | 2012-11-08 | 2013-02-13 | 青岛海信日立空调系统有限公司 | Air conditioner exhausting silencer and silencing method |
| CN103471294A (en) * | 2013-09-06 | 2013-12-25 | 青岛海信日立空调系统有限公司 | Noise reduction flow dividing device based on multi-connection air conditioning system |
| CN104832247A (en) * | 2015-04-29 | 2015-08-12 | 麦克维尔空调制冷(武汉)有限公司 | Exhaust silencer for screw-type unit |
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
| CN114811251A (en) * | 2022-02-25 | 2022-07-29 | 中国船舶重工集团公司第七一九研究所 | Silencer control method and device, electronic equipment and silencer |
-
2012
- 2012-11-08 CN CN 201220588377 patent/CN202902574U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927675A (en) * | 2012-11-08 | 2013-02-13 | 青岛海信日立空调系统有限公司 | Air conditioner exhausting silencer and silencing method |
| CN102927675B (en) * | 2012-11-08 | 2015-11-18 | 青岛海信日立空调系统有限公司 | Exhaust muffling device for air-conditioner and noise reduction method |
| CN103471294A (en) * | 2013-09-06 | 2013-12-25 | 青岛海信日立空调系统有限公司 | Noise reduction flow dividing device based on multi-connection air conditioning system |
| CN103471294B (en) * | 2013-09-06 | 2015-12-02 | 青岛海信日立空调系统有限公司 | Based on the part flow arrangement of multi-connected air conditioning system noise reduction |
| CN104832247A (en) * | 2015-04-29 | 2015-08-12 | 麦克维尔空调制冷(武汉)有限公司 | Exhaust silencer for screw-type unit |
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
| CN114811251A (en) * | 2022-02-25 | 2022-07-29 | 中国船舶重工集团公司第七一九研究所 | Silencer control method and device, electronic equipment and silencer |
| CN114811251B (en) * | 2022-02-25 | 2023-08-25 | 中国船舶重工集团公司第七一九研究所 | Muffler control method and device, electronic equipment and muffler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102927675B (en) | Exhaust muffling device for air-conditioner and noise reduction method | |
| CN202902574U (en) | Air conditioner exhaust silencing device | |
| CN206957931U (en) | A kind of exhaust silencer for screw unit | |
| CN106121774A (en) | A kind of low noise combined type multi-cavity exhaust silencer | |
| CN108980049B (en) | Air flow pulsation attenuation device of screw compressor | |
| CN202417651U (en) | Exhaust silencer of automobile | |
| CN104422109A (en) | Silencer for air conditioner and air conditioner with same | |
| CN103321716B (en) | The reactive muffler structure that a kind of perforated pipe and narrow slit resonant cavity combine | |
| CN210118237U (en) | Noise elimination structure of compressor | |
| CN110285496B (en) | Muffler, refrigerating system and air conditioner | |
| CN201865727U (en) | Silencing device for reducing noise of internal combustion engine | |
| CN104832247B (en) | Exhaust silencer for screw-type unit | |
| CN201818348U (en) | Hydraulic muffler for excavator | |
| CN110748506A (en) | Noise elimination device for turbocharger | |
| CN203321650U (en) | Transverse flow perforated pipe silencer structure with choked flow barrier | |
| CN210599316U (en) | Air suction silencer with conical air suction pipeline structure | |
| CN210889493U (en) | Noise elimination device for turbocharger | |
| CN212535978U (en) | Air suction silencer for air suction at same side of compressor | |
| CN203321631U (en) | Reactive muffler structure with perforated pipes combined with narrow-gap resistant cavity | |
| CN202001157U (en) | Intake silencer of diesel engine | |
| CN208456805U (en) | A kind of inhaling silencer for refrigerator reciprocating compressor | |
| CN207702765U (en) | A kind of refrigeration that can reduce noise or heat pump unit gas exhaust piping | |
| BRPI1005459A2 (en) | domestic discharge filter for a refrigeration compressor | |
| CN206054062U (en) | A kind of automobile exhaust muffler | |
| CN201344082Y (en) | Efficient forklift air intake eliminator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |