CN210399462U - Silencer for air conditioner and air conditioner with same - Google Patents
Silencer for air conditioner and air conditioner with same Download PDFInfo
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- CN210399462U CN210399462U CN201921056638.1U CN201921056638U CN210399462U CN 210399462 U CN210399462 U CN 210399462U CN 201921056638 U CN201921056638 U CN 201921056638U CN 210399462 U CN210399462 U CN 210399462U
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- 230000003584 silencer Effects 0.000 title claims abstract description 23
- 230000030279 gene silencing Effects 0.000 claims abstract description 32
- 239000003507 refrigerant Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004378 air conditioning Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model provides a muffler for air conditioner and have its air conditioner. The air conditioner silencer comprises a main inlet, a main outlet and a plurality of expanding silencing cavities which are arranged in parallel; the inlet of each expansion silencing cavity is communicated with the main inlet; the outlet of each expansion silencing cavity is communicated with the main outlet; and the lengths of at least two of the expanding silencing cavities are different. The silencer for the air conditioner is a pipeline silencer applied to an air conditioning system, which is designed by utilizing the principle that sound waves interfere with each other to offset each other when being superposed so as to weaken the sound intensity, and can reduce the noise on the basis of not reducing the energy efficiency of the air conditioner. That is to say, this muffler for air conditioner utilizes the interference effect that the sound wave stack produced to carry out the half-wave amortization, can avoid increasing the energy efficiency reduction that pressure loss brought, can produce better noise cancelling effect again.
Description
Technical Field
The utility model relates to an air conditioning field especially relates to a muffler for air conditioner and have its air conditioner.
Background
Along with the continuous improvement of the living standard of people, users pay more and more attention to the noise problem of air conditioner products. According to the statistics of after-sale statistics of electric businesses, the reason that more than half of complaints are caused by overlarge noise is found, the inventor finds that the conventional air conditioner pipeline silencer basically silences the exhaust and suction noise through an expansion cavity, the silencing frequency range is small, the silencing effect is poor, and the further reduction of the air conditioner noise becomes a problem which needs to be faced by an air conditioner manufacturer.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at overcoming at least one defect of current muffler, provide a muffler for air conditioner and have its air conditioner, this muffler for air conditioner noise cancelling effect is good, and the efficiency is high.
Particularly, the utility model provides a silencer for an air conditioner, which comprises a main inlet, a main outlet and a plurality of expanding silencing cavities which are arranged in parallel;
the inlet of each expansion silencing cavity is communicated with the main inlet;
the outlet of each expansion silencing cavity is communicated with the main outlet; and is
At least two of the expanding muffling chambers have different lengths.
Optionally, the number of the expanded sound-deadening cavities is two, and the two expanded sound-deadening cavities are respectively a first expanded sound-deadening cavity and a second expanded sound-deadening cavity with a length smaller than that of the first expanded sound-deadening cavity.
Optionally, the difference in length between the first and second diverging sound-attenuating chambers is half the wavelength of the sound wave at which the noise contribution to be cancelled is greatest.
Optionally, the difference in length between the first and second diverging sound-attenuating chambers is 2/5 to 4/5 of the wavelength of the sound wave at which the noise to be cancelled contributes most.
Optionally, the lengths of the conduits between the inlets of a plurality of said diverging muffling chambers and said total inlet are the same.
Optionally, each of the expanding and muffling cavities includes a straight tube portion and two necking-shaped connecting portions respectively disposed at two ends of the straight tube portion.
Optionally, the pipeline between the inlet of each said expanded sound-deadening chamber and said general inlet comprises a first straight pipe section perpendicular to the axis of the respective said expanded sound-deadening chamber, a second straight pipe section parallel to the axis of the respective said expanded sound-deadening chamber, and an arc-shaped connecting pipe section connecting the first straight pipe section and the second straight pipe section; and the first straight pipe section is connected with the general inlet, and the second straight pipe section is connected with the inlet of the corresponding expanding silencing cavity.
Optionally, a plurality of the expanding silencing chambers are arranged in parallel with each other.
Alternatively, the inner diameters of the straight tube portions of the plurality of the expanding muffling chambers are the same.
The utility model also provides an air conditioner, including refrigerant pipeline and any kind of muffler for the air conditioner of the aforesaid, the muffler for the air conditioner install in the refrigerant pipeline.
The utility model discloses an among air conditioner silencer and the air conditioner, the pipeline muffler among the air conditioning system is applied to the principle design that the muffler took place to interfere when the stack for utilizing the sound wave and offset each other and weaken the sound intensity, and it can fall on the basis that does not reduce the air conditioner efficiency and make an uproar. That is to say, this muffler for air conditioner utilizes the interference effect that the sound wave stack produced to carry out the half-wave amortization, can avoid increasing the energy efficiency reduction that pressure loss brought, can produce better noise cancelling effect again.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a silencer for an air conditioner according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of a silencer for an air conditioner according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a silencer for an air conditioner, which may include a main inlet 11, a main outlet 12, and a plurality of expanded silencing chambers 20 arranged in parallel. The inlet of each expanding muffling chamber 20 communicates with the general inlet 11. The outlet of each diverging muffling chamber 20 communicates with the general outlet 12. The at least two diverging muffling chambers 20 are of unequal length. The silencer for the air conditioner is a pipeline silencer applied to an air conditioning system, which is designed by utilizing the principle that sound waves interfere with each other to offset when being superposed so as to weaken the sound intensity. Specifically, the two extended sound-deadening cavities 20 with different lengths can be used for superposition of sound waves, and sound is not deadened through impedance, so that the pressure loss of a pipeline of an air-conditioning system is not caused additionally, and the energy efficiency of the air conditioner is not influenced.
In some preferred embodiments of the present invention, there are two expanded muffling chambers 20, which are a first expanded muffling chamber and a second expanded muffling chamber having a length smaller than that of the first expanded muffling chamber. The first flared silencing chamber may also be referred to as the long flared silencing chamber and the second flared silencing chamber may also be referred to as the short flared silencing chamber. The difference in length between the first and second diverging sound-attenuating chambers is half the wavelength of the sound wave at which the noise contribution to be cancelled is greatest. In some alternative embodiments, the difference in length between the first and second diverging sound-attenuating chambers may also be between 2/5 and 4/5 of the wavelength of the sound wave at which the noise contribution to be cancelled is greatest.
In some embodiments of the present invention, the length of the conduit between the inlet of the plurality of expanded muffling chambers 20 and the main inlet 11 is the same. Each of the expanding muffling chambers 20 includes a straight tube portion 21 and two constricted connecting portions 22 provided at both ends of the straight tube portion 21, respectively. The inner diameters of the straight tube portions 21 of the plural expanding muffling chambers 20 are preferably the same. The conduit between the inlet of each expanded sound-deadening chamber 20 and the general inlet 11 includes a first straight pipe section 31 perpendicular to the axis of the corresponding expanded sound-deadening chamber 20, a second straight pipe section 32 parallel to the axis of the corresponding expanded sound-deadening chamber 20, and an arc-shaped connecting pipe section 33 connecting the first straight pipe section 31 and the second straight pipe section 32; and a first straight section 31 is connected to the general inlet 11 and a second straight section 32 is connected to the inlet of the corresponding expanding muffling chamber 20. The plurality of expanding muffling chambers 20 are arranged in parallel with each other. The piping between the outlet of each diverging sound-deadening chamber 20 and the general inlet 12 is identical in structure to the piping between the inlet of each diverging sound-deadening chamber 20 and the general inlet 11, and may differ in length.
The utility model also provides an air conditioner, including refrigerant pipeline and any kind of muffler for the air conditioner of the aforesaid, the muffler for the air conditioner is installed in the refrigerant pipeline.
The utility model discloses formerly, the pipeline muffler is located between compressor and evaporimeter, the condenser, is the important part that reduces compressor noise transmission, and the noise quality of its good direct influence air conditioner product matches with compressor and pipeline. The utility model discloses formerly, the expanding pipeline muffler that the air conditioner producer used concentratedly has the pressure loss low, and is with low costs, characteristics such as simple process. For a fixed frequency air conditioner, the maximum frequency point of noise is generally phased and relatively concentrated according to the natural frequency of a press and a pipeline, and when the silencer matching is actually carried out, expansion silencers with different specifications are welded to find the specification with the best noise. This approach is time consuming and labor intensive and also occupies significant laboratory resources.
However, the utility model provides a muffler for air conditioner only needs to test out the wavelength of the biggest point of the noise of fixed frequency air conditioner, carries out the half-wave noise elimination to this wavelength, just can gain fine noise cancelling effect. As shown in fig. 1, the air flow enters the long expanded silencing cavity and the short expanded silencing cavity through the main inlet 11, the length difference between the long expanded silencing cavity and the short expanded silencing cavity is equal to half of the wavelength of the sound wave with the maximum frequency of the noise contribution to be eliminated, so that the two rows of sound waves are interfered and mutually offset when being superposed at the main outlet 12 to weaken the sound intensity, reduce the sound transmitted by the compressor, and achieve the silencing effect.
And, to inverter air conditioner, the utility model provides a muffler for air conditioner can carry out the fixed point to the frequency section that pipeline and compressor resonance appear and eliminate, and application scope is wide, and the application effect is obvious. Except that the above-mentioned effect of making an uproar of falling to the off-premises station of air conditioner, use the utility model provides a muffler for air conditioner can effectually abolish the sound transmission that the off-premises station brought for the indoor set, can break the transmission sound.
To sum up, the utility model provides a muffler for air conditioner's design is simple, and the loss of pressure that causes is less to refrigerating system's performance influence little. And the lengths of the long expansion silencing cavity and the short expansion silencing cavity can be calculated through one-time test by applying strong directivity, so that a large amount of repeated trial and error under the condition of no head end is avoided, the efficiency is improved, and the materials and the labor cost are saved. Today that user experience is more important, the competitiveness that promotes noise reduction effect and can improve the product greatly, the utility model provides a muffler for air conditioner provides new scheme for solving multiple noise problem, and noise reduction effect is obvious.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A silencer for an air conditioner is characterized by comprising a main inlet, a main outlet and a plurality of expanding silencing cavities which are arranged in parallel;
the inlet of each expansion silencing cavity is communicated with the main inlet;
the outlet of each expansion silencing cavity is communicated with the main outlet; and is
At least two of the expanding muffling chambers have different lengths.
2. The silencer for an air conditioner according to claim 1,
the two expansion silencing cavities are respectively a first expansion silencing cavity and a second expansion silencing cavity with the length smaller than that of the first expansion silencing cavity.
3. The silencer for an air conditioner according to claim 2,
the difference in length between the first and second diverging sound-attenuating chambers is half the wavelength of the sound wave at which the noise contribution to be cancelled is greatest.
4. The silencer for an air conditioner according to claim 2,
the difference in length between the first and second diverging sound-attenuating chambers is 2/5 to 4/5 of the wavelength of the sound wave at which the noise to be cancelled contributes most.
5. The silencer for an air conditioner according to claim 1,
the lengths of pipelines between the inlets of the plurality of the expanding silencing cavities and the main inlet are the same.
6. The silencer for an air conditioner according to claim 1,
each expanding silencing cavity comprises a straight cylinder part and two necking connecting parts which are respectively arranged at two ends of the straight cylinder part.
7. The silencer for an air conditioner according to claim 1,
the pipeline between the inlet of each expanded sound-deadening cavity and the main inlet comprises a first straight pipe section perpendicular to the axis of the corresponding expanded sound-deadening cavity, a second straight pipe section parallel to the axis of the corresponding expanded sound-deadening cavity, and an arc-shaped connecting pipe section connecting the first straight pipe section and the second straight pipe section; and is
The first straight pipe section is connected with the general inlet, and the second straight pipe section is connected with the inlet of the corresponding expanding silencing cavity.
8. The silencer for an air conditioner according to claim 1,
the expansion silencing cavities are arranged in parallel.
9. The silencer for an air conditioner according to claim 6,
the inner diameters of the straight tube portions of the plurality of expanding muffling chambers are the same.
10. An air conditioner comprising a refrigerant pipeline, characterized by further comprising the muffler for an air conditioner as set forth in any one of claims 1 to 9, said muffler for an air conditioner being mounted on said refrigerant pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921056638.1U CN210399462U (en) | 2019-07-08 | 2019-07-08 | Silencer for air conditioner and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921056638.1U CN210399462U (en) | 2019-07-08 | 2019-07-08 | Silencer for air conditioner and air conditioner with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210399462U true CN210399462U (en) | 2020-04-24 |
Family
ID=70353240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921056638.1U Active CN210399462U (en) | 2019-07-08 | 2019-07-08 | Silencer for air conditioner and air conditioner with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210399462U (en) |
-
2019
- 2019-07-08 CN CN201921056638.1U patent/CN210399462U/en active Active
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