CN202902574U - Air conditioner exhaust silencing device - Google Patents
Air conditioner exhaust silencing device Download PDFInfo
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- 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
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- 230000030279 gene silencing Effects 0.000 title claims abstract description 39
- 230000003584 silencer Effects 0.000 claims abstract description 45
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 238000005219 brazing Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000737 periodic effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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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 an air conditioner exhaust amortization part specifically is an air conditioner exhaust silencing device.
Background
In the design process of the air conditioner, due to the problems of box body materials, the area of the two devices, the capacity, the type and the characteristics of a compressor, piping design, system debugging and matching and the like, overlarge airflow sound of an exhaust pipeline or pipeline vibration can be caused, and abnormal noise is generated and the comfort of a user is influenced when the airflow sound is transmitted to an indoor unit through a connecting pipe in serious cases. When this occurs, the most common approach is to add a muffler to the exhaust line. If the exhaust pipeline generates serious airflow sound, two silencers are connected in series or a silencer with larger volume is adopted to eliminate the noise. When the two mufflers are connected in series, the hidden trouble of air flow leakage caused by poor welding can be increased due to the increase of welding points. The patent with publication number CN201589393U discloses an air conditioner exhaust silencer, which comprises a first compressor exhaust pipe, a silencer and a second compressor exhaust pipe, wherein the first compressor exhaust pipe and the second compressor exhaust pipe are respectively installed at two ends of the silencer through a welding process. The middle part of the silencer is in a reducing design, and the diameter of the middle part of the silencer is 0.25-0.4 times of the diameter of the cylinders at the two ends. Although the air conditioner exhaust silencer avoids the series connection of two silencers and saves materials and space, the reducing design in the middle of the silencers is difficult to process due to complex structure and difficult to control the specification and characteristics of products. And even if the two silencing devices can eliminate the noise in the exhaust pipeline to a greater extent, the noise of certain specific frequencies cannot be eliminated. Meanwhile, the two silencers cannot be installed in a smaller box body due to larger volume.
In view of the above, it is desirable to provide an air conditioner exhaust silencer that can eliminate specific frequencies, and that is small and inexpensive to manufacture.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air conditioner exhaust silencing device that can eliminate specific frequency, and the volume is less, manufacturing cost is not high.
According to the embodiment of the utility model provides an air conditioner exhaust silencing device is provided, an air conditioner exhaust silencing device, include: a muffler cavity, a first piping and a second piping;
the silencer cavity is provided with a first access pipe and a second access pipe at two ends respectively;
one end of the first tubing is communicated with an air inlet of the compressor exhaust pipe, the other end of the first tubing is inserted into the muffler cavity from the first access pipe, and the splicing position between the first tubing and the first access pipe is sealed;
one end of a second tubing is inserted into the muffler cavity from a second access pipe, the other end of the second tubing is communicated with a pipeline of a compressor exhaust circulation system, and the splicing position between the second tubing and the second access pipe is sealed;
the silencer cavity eliminates specific frequency bands in sound waves generated by vibration of the compressor.
Wherein, the muffler cavity specifically includes:
the silencer comprises a silencing cavity, an inlet gradually-expanding cavity and an outlet gradually-contracting cavity, wherein the inlet gradually-expanding cavity and the outlet gradually-expanding cavity are respectively arranged at two ends of the silencing cavity;
the large-caliber end of the inlet gradually-expanding cavity is connected with the silencing cavity, and the small-caliber end of the inlet gradually-expanding cavity is fixedly connected with the first access pipe;
the large-caliber end of the outlet reducing cavity is connected with the silencing cavity, and the small-caliber end of the outlet reducing cavity is fixedly connected with the second access pipe.
Preferably, the length of insertion of the first pipe and the second pipe into the sound-deadening chamber is adjustable.
Further, the first pipe is inserted into the sound-deadening chamber at 1/2 times the length of the sound-deadening chamber, and the second pipe is inserted into the sound-deadening chamber at 1/4 times the length of the sound-deadening chamber.
Preferably, the first access tube and the inlet tapered cavity are integrally formed, and the second access tube and the outlet tapered cavity are integrally formed.
Wherein the gradually-expanding form of the inlet gradually-expanding cavity is linear gradually-expanding or curve gradually-expanding;
the tapered form of the outlet tapered cavity is a straight line taper or a curve taper.
Preferably, the insertion part of the first pipe and the first access pipe is welded by brazing;
the splicing part of the second tubing and the second access tube is welded by brazing.
One end of the first tubing is welded with the air inlet of the compressor exhaust pipe through brazing;
the other end of the second pipe is welded with the pipeline of the compressor exhaust circulation system by brazing.
Preferably, the first pipe and the second pipe are provided with positioning marks for marking the lengths of the first pipe and the second pipe inserted into the sound-deadening chamber.
Preferably, an oil return hole is formed in the pipe body, inserted into the muffler cavity, of the second pipe, and the oil return hole is a through hole and used for guiding oil stored in the muffler cavity into a pipeline of an exhaust circulation system of the compressor.
Preferably, the muffler cavity is made of iron, and the first pipe and the second pipe are made of red copper.
According to the above technical scheme, the utility model provides a muffler device can realize carrying out the amortization according to specific frequency channel through the length of adjusting the amortization chamber, inserts the periodic vibration sound wave filtering in the length of amortization chamber with the compressor vibration sound wave through adjusting first piping and second piping simultaneously. Because the utility model discloses well muffler cavity only needs a cavity alright realize good noise cancelling effect, consequently has small, low in production cost's advantage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art further embodiments and drawings can be derived from the embodiments shown in the drawings.
Fig. 1 is a schematic structural view of an exhaust silencer of an air conditioner according to the present invention;
FIG. 2 is a schematic diagram of a muffler chamber according to the present invention;
FIG. 3 is a schematic view showing the structure of the first pipe inserted into the sound-deadening chamber;
FIG. 4 is a schematic view showing the structure of the first pipe inserted into the sound-deadening chamber;
fig. 5 is a schematic view showing a structure in which both the first pipe and the second pipe are inserted into the sound-deadening chamber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples.
Fig. 1 shows a schematic structural diagram of the exhaust silencer of the air conditioner of the present invention. As shown in fig. 1, the air conditioner exhaust muffler device includes a muffler chamber 1, a first pipe 2, and a second pipe 3.
Fig. 2 shows a schematic structural view of the muffler chamber 1. As shown in fig. 2, a first access pipe 101 and a second access pipe 102 are respectively disposed at both ends of the muffler chamber 1. The silencer cavity 1 comprises a silencing cavity 105 capable of effectively eliminating noise, and an inlet tapered cavity 103 and an outlet tapered cavity 104, wherein the inlet tapered cavity 103 is arranged at two ends of the silencing cavity 105 and is used for connecting the first access pipe 101, and the outlet tapered cavity 104 is used for connecting the second access pipe 102. The first access pipe 101 is fixedly connected with the inlet gradually-expanding cavity 103; the second access tube 102 is fixedly connected to the outlet tapered lumen 104. Preferably, in the embodiment of the present invention, the first access tube 101 is integrally formed with the inlet gradually-expanding cavity 103; the second access tube 102 is integrally formed with the outlet tapered lumen 104.
Wherein, the gradually-expanding form of the inlet gradually-expanding cavity 103 is a straight line gradually-expanding form or a curve gradually-expanding form. The tapered form of the outlet tapered cavity 104 is a straight line taper or a curved line taper. The diverging form of the inlet diverging chamber 103 and the diverging form of the outlet converging chamber 104 are determined by the skilled person according to production requirements or other specific requirements, generally the inlet diverging chamber 103 and the outlet converging chamber 104 are arranged symmetrically on both sides of the sound-deadening chamber 105. The embodiment of the present invention provides an example that the gradually expanding form of the inlet gradually expanding cavity 103 is a straight line gradually expanding form, and the gradually reducing form of the outlet gradually reducing cavity 104 is a straight line gradually reducing form, but the inlet gradually expanding cavity 103 is not limited to the straight line gradually expanding form, and the outlet gradually reducing cavity 104 is not limited to the straight line gradually reducing form.
The first pipe 2 is a hollow pipe. One end of the first pipe is connected to the inlet of the compressor discharge pipe, and the other end is inserted into the muffler chamber 1 through the first inlet 101. Wherein,
the connection mode of the first pipe 2 and the air inlet of the compressor exhaust pipe is specifically as follows: the inlet port of the compressor discharge pipe is inserted into the first pipe 2, and the outer surface of the portion of the compressor discharge pipe inserted into the first pipe 2 and the inner surface of the first pipe 2 are welded by brazing.
The connection mode of the first pipe 2 and the first access pipe 101 is specifically as follows: the joint between the first pipe 2 and the first inlet pipe 101 is sealed by brazing. The joint between the first pipe 2 and the first connection pipe 101 is a gap between the outer surface of the portion of the first pipe 2 inserted into the first connection pipe 101 and the inner surface of the first connection pipe.
The second pipe 3 is a hollow pipe. One end of the second pipe is inserted into the muffler chamber 1 through the second inlet 102, and the other end is communicated with the compressor exhaust circulation system pipe. Wherein,
the second pipe 3 is welded to the exhaust gas circulation system pipe by a welding process. Preferably, the second pipe 3 is welded to the compressor discharge circulation system pipe by brazing.
The connection mode of the second piping 3 and the pipeline of the compressor exhaust circulation system is specifically as follows: a part of the compressor discharge circulation pipe is inserted into the second pipe 3, and an outer surface of the part of the compressor discharge circulation pipe inserted into the second pipe 2 is welded to an inner surface of the first pipe 2 by brazing.
The connection mode of the second pipe 3 and the second access pipe 102 is specifically as follows: the joint between the second pipe 3 and the second inlet pipe 102 is sealed by brazing. The joint between the second pipe 3 and the second connection pipe 102 is a gap between the outer surface of the portion of the second pipe 3 penetrating the second connection pipe 102 and the inner surface of the second connection pipe 102.
The length of the silencing chamber 105 of the first pipe 2 inserted into the silencer chamber 1 and the length of the silencing chamber 105 of the second pipe 3 inserted into the silencer chamber 1 are adjustable. Further, the length of the first pipe 2 inserted into the sound-deadening chamber 105 of the muffler chamber 1 is in direct proportion to the length of the second pipe 3 inserted into the sound-deadening chamber 105 of the muffler chamber 1, and specifically, the ratio of the length of the first pipe 2 inserted into the sound-deadening chamber 105 to the length of the second pipe 3 inserted into the sound-deadening chamber 105 is 2: 1. through inserting first piping 2 and second piping 3 in the amortization intracavity of muffler cavity 1, can make the utility model provides a muffler device can carry out the amortization according to specific frequency channel. Meanwhile, the proportion of the length of the first tubing 2 inserted into the sound-deadening cavity 105 to the length of the second tubing 3 inserted into the sound-deadening cavity 105 is adjusted, so that the periodic passing frequency can be eliminated, and a good sound-deadening effect can be achieved
Preferably, the first pipe 2 and the second pipe 3 are provided with positioning marks 4 for accurately controlling the lengths of the first pipe 2 and the second pipe 3 inserted into the sound-deadening chamber 105, as shown in fig. 1. The positioning mark 4 may be a scale line, a dot or an asterisk. The shape of the positioning mark 4 in the present embodiment is merely exemplary, and any pattern that can serve as a mark falls within the scope of the present invention.
Further, the second pipe 3 is provided with an oil return hole 5 in a pipe body inserted into the muffler chamber 1 and located in the outlet tapered chamber 104, and the oil return hole 5 is a through hole. Because the silencing device is vertically arranged in the exhaust pipeline. The first pipe 2 is provided at an upper portion of the muffler device, and the second pipe 3 is provided at a lower portion of the muffler device. The exhaust of compressor enters into muffler cavity 1 through first piping 2 in, because can mix with micro-oil in the gas of compressor emission when the exhaust, silencing device is long back at the live time, and the trapped oil just can appear in 1 bottoms of muffler cavity, influences silencing device's noise cancelling effect. Therefore, the oil return hole 5 is arranged on the pipe body of the second pipe 3 inserted into the silencer cavity 1, so that the oil stored at the bottom of the silencer cavity 1 can be returned to the exhaust circulation system of the compressor to the maximum extent, and the silencer can always keep good silencing effect.
Further, the oil return hole 5 and the positioning mark 4 are provided on the same side surface of the second pipe 3, and the center of the oil return hole 5 and the center of the positioning mark 4 are on the same straight line. The center of the oil return hole 5 and the center of the positioning mark 4 are on the same straight line, so that when the second pipe 3 and the second access pipe 102 are welded, the proper amount of solder is placed at the positioning mark 4, and the phenomenon that the solder flows down along the second pipe 3 to block the oil return hole due to excessive solder during welding is avoided.
Through inserting first piping 2 and second piping 3 in the amortization intracavity of muffler cavity 1, can make the utility model provides a muffler device can carry out the amortization according to specific frequency channel. Meanwhile, the ratio of the length of the first pipe 2 inserted into the sound-deadening chamber 105 to the length of the second pipe 3 inserted into the sound-deadening chamber 105 is set to 2: 1, the periodic passing frequency of sound waves generated by the vibration of the compressor can be eliminated, and a good silencing effect is achieved. The utility model discloses in, the specific frequency channel is the frequency channel that the noise that this technical field's personnel wanted the filtering corresponds in the produced sound wave of compressor vibration.
Face down the utility model provides a silencing device can carry out the principle of amortization to specific frequency channel and elaborate.
The utility model discloses in, the amortization chamber 105 of muffler cavity 1' S sectional area is S1The cross-sectional area of the first pipe 2 is S2The length of the muffler chamber 105 in the muffler chamber 1 is l. Then the utility model discloses well silencing device's expansion ratio m is:
m=S1/S2(formula 1)
The calculation formula of the silencing volume of the silencing device is as follows:
Wherein;
k is the wave number: (formula 3)
λ is the wavelength of the sound wave at the gas temperature in the silencer: λ = c/f. (formula 4)
c is the sound velocity (the speed at which sound waves propagate in the refrigerant for air conditioner refrigeration);
f is the frequency of the acoustic wave.
As can be seen from equation 2, sin is2kl =1, the canceling volume has a maximum value. At this time
From equations 3 and 4, one can derive:
so that the maximum silencing frequency: (formula 5)
From equation 5, if the length l of the sound-deadening chamber 105 in the muffler chamber 1 is increased, the maximum sound-deadening frequency f of the muffler device is increasednIt shifts to a low frequency. Since the common noise of the air conditioner is usually concentrated on a lower frequency band, the length l of the sound cavity 105 in the muffler cavity 1 can be calculated by substituting the frequency of the noise to be eliminated into formula 5. The sound can be muffled for a specific frequency by using a muffling apparatus whose length of the chamber 105 is calculated.
However, although the above-mentioned muffler device for muffling a specific frequency by calculating the length of the muffling chamber 105 has good muffling performance for the specific frequency, there is a problem of periodic passing of the frequency, which is specifically given by equation 2:
when kl = n pi (n =0, 1, 2 …), Δ Lw =0, i.e. the silencer device for a frequency fn=nc/2l1(n =0, 1, 2 …) sound waves are not muffled, resulting in these frequencies being fn=nc/2l1The acoustic wave of (2) is directly transmitted without being reduced.
Therefore, the frequency of the leakage of the silencer is the periodic leakage sound wave, and the frequency of the periodic leakage sound wave is fnAnd (4) = nc/2 l. In order to overcome the defect that the silencer leaks the periodic sound waves, the utility model discloses in adopt to insert first piping 2 and second piping 3 into the method of silencer cavity 1 and solve.
FIG. 3 is a schematic view showing a structure in which the first pipe 2 is inserted into the sound-deadening chamber 105 of the muffler chamber 1, wherein the sound-deadening chamber 105 of the muffler chamber 1 has a length l1The length of the first piping 2 is l2. The muffling volume of the muffling device after the first pipe 2 is inserted is as follows:
Wherein,
(formula 7)
(formula 8)
In the formula, PInto-muffler incident sound pressure;
Ptransparent film-muffler transmission sound pressure;
m-expansion ratio.
From the equations 7 and 8, it can be seen that the length l of the first pipe 2 is set2Is 11/2,kl1Where =2n +1 pi, (n =0, 1, 2 …), Δ Lw ≠ 0. Since Δ Lw ≠ 0, it is said that the silencing apparatus has a frequency fn=nc/2l1The acoustic wave (n is an odd number greater than 0) can exert a damping effect. Therefore, the first piping is inserted into the muffler chamber 1 to eliminate the frequency
(n is an integer greater than 0) is an odd fraction of n.
FIG. 4 is a schematic view showing a structure in which the first pipe 2 is inserted into the sound-deadening chamber 105 of the muffler chamber 1, wherein the sound-deadening chamber 105 of the muffler chamber 1 has a length l1The length of the first piping 2 isl3. The sound deadening amount of the sound deadening device after the second pipe 3 is inserted is the same as the expressions 6, 7, and 8. And will not be described in detail herein. From the expressions 7 and 8, it can be seen that when the length of the second pipe 3 is l1/4，kl1Where =2n pi (n =0, 1, 2 …), Δ Lw ≠ 0. Since Δ Lw ≠ 0, it is explained that the silencing apparatus has a frequency fn=nc/2l1The sound waves (n is an even number greater than 0) can exert a damping effect. Therefore, the second pipe is inserted into the muffler chamber 1, and the passing frequency can be eliminated(n is an integer greater than 0) is an even portion of n.
Thus, in the silencer cavity 1 of the middle silencer according to the present invention, the first pipe 2 and the second pipe 3 are inserted, and the lengths of the first pipe 2 and the second pipe 3 inserted into the silencing chamber 105 are 1/2 and 1/4, respectively, which are the length of the silencing chamber 105, as shown in fig. 5. Therefore the utility model provides a silencing device not only can be with the sound wave filtering of specific frequency, still can be through first piping 2 and second piping 3 with the frequency elimination that periodically leaks, thereby make the utility model provides a silencing device can carry out the amortization and have good noise cancelling effect to specific frequency.
The length of the first pipe 2 and the second pipe 3 in the present invention may be the same or different. The lengths of the first piping 2 and the second piping 3 are determined by those skilled in the art according to production requirements or design. In the embodiment of the present invention, the first pipe 2 and the second pipe 3 have different lengths.
The embodiment of the utility model provides an in, the material of muffler cavity 1 is iron among the silencing device, and the material of first piping 2 and second piping 3 is red copper, can reduce silencing device's manufacturing cost like this furthest, is favorable to batch production.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An air conditioner exhaust silencer comprising: a muffler cavity, a first piping and a second piping;
the silencer cavity is provided with a first access pipe and a second access pipe at two ends respectively;
one end of the first tubing is communicated with an air inlet of the compressor exhaust pipe, the other end of the first tubing is inserted into the muffler cavity from the first access pipe, and the splicing position between the first tubing and the first access pipe is sealed;
one end of a second tubing is inserted into the muffler cavity from a second access pipe, the other end of the second tubing is communicated with a pipeline of a compressor exhaust circulation system, and the splicing position between the second tubing and the second access pipe is sealed;
the silencer cavity eliminates specific frequency bands in sound waves generated by vibration of the compressor.
2. The air conditioner exhaust silencer according to claim 1, wherein said silencer chamber includes:
the silencer comprises a silencing cavity, an inlet gradually-expanding cavity and an outlet gradually-contracting cavity, wherein the inlet gradually-expanding cavity and the outlet gradually-expanding cavity are respectively arranged at two ends of the silencing cavity;
the large-caliber end of the inlet gradually-expanding cavity is connected with the silencing cavity, and the small-caliber end of the inlet gradually-expanding cavity is fixedly connected with the first access pipe;
the large-caliber end of the outlet reducing cavity is connected with the silencing cavity, and the small-caliber end of the outlet reducing cavity is fixedly connected with the second access pipe.
3. The air conditioner exhaust silencer according to claim 2, wherein the length of insertion of the first pipe and the second pipe into the silencing chamber is adjustable.
4. The air conditioner exhaust muffler device according to claim 3, wherein a first pipe is inserted into the muffler chamber at 1/2 times the length of the muffler chamber, and a second pipe is inserted into the muffler chamber at 1/4 times the length of the muffler chamber.
5. The air conditioner exhaust silencer according to claim 2 wherein said first inlet duct is integrally formed with said inlet tapered chamber and said second inlet duct is integrally formed with said outlet tapered chamber.
6. The air conditioner exhaust muffler device according to claim 2,
the gradually-expanding form of the inlet gradually-expanding cavity is linear gradually-expanding or curve gradually-expanding;
the tapered form of the outlet tapered cavity is a straight line taper or a curve taper.
7. The air conditioner exhaust muffler device according to claim 1,
the splicing part of the first tubing and the first access tube is welded by brazing;
the splicing part of the second tubing and the second access tube is welded by brazing.
One end of the first tubing is welded with the compressor exhaust pipe through brazing;
the other end of the second pipe is welded with the pipeline of the compressor exhaust circulation system by brazing.
8. The exhaust silencer of air conditioner as claimed in claim 1, wherein each of the first and second pipes has a positioning mark for marking the length of the first and second pipes inserted into the silencing chamber.
9. The exhaust silencer assembly according to claim 1, wherein the pipe body of the second pipe inserted into the silencer chamber has an oil return hole, and the oil return hole is a through hole for guiding the stored oil in the silencer chamber to the compressor exhaust circulation system pipe.
10. The exhaust silencer of air conditioner as claimed in claim 1, wherein the silencer chamber is made of iron, and the first and second pipes are made of 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 |
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| Publication Number | Publication Date |
|---|---|
| CN202902574U true CN202902574U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220588377 Expired - Lifetime CN202902574U (en) | 2012-11-08 | 2012-11-08 | Air conditioner exhaust silencing device |
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| 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 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |