CN106766083B - A kind of muffler and the air-conditioning comprising the muffler - Google Patents
A kind of muffler and the air-conditioning comprising the muffler Download PDFInfo
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- CN106766083B CN106766083B CN201611111364.2A CN201611111364A CN106766083B CN 106766083 B CN106766083 B CN 106766083B CN 201611111364 A CN201611111364 A CN 201611111364A CN 106766083 B CN106766083 B CN 106766083B
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- cavity
- muffler
- necking
- air
- diameter
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate outdoor units
- F24F1/12—Vibration or noise prevention thereof
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of muffler and include the air-conditioning of the muffler, muffler includes distributor, the first cavity and the second cavity, first cavity includes the first cavity, First Transition chamber and the first necking, second cavity includes connector, the second adapter cavity, the second cavity, third adapter cavity and the second necking, and distributor includes third necking, the 4th adapter cavity and third cavity.Muffler can make the flow path of refrigerant by repeatedly extension and shrink, and mutually stagger each section of cavity by frequency, eliminate the sound of multi-wavelength, multi-frequency, can expand noise reduction frequency range.Muffler can smash the bubble in the refrigerant of gas-liquid mixture phase, so that the flowing of refrigerant is more uniform, also have good improvement to piping stress and vibration aspect.Muffler can transmit sound, refrigerant flow noise and pipeline beating vebrato to the press in air-conditioning system and play good sound deadening, and total sound-damping qualities can be improved.
Description
Technical field
The present invention relates to noise control technical fields, relate in particular to a kind of muffler and the sky comprising the muffler
It adjusts.
Background technique
Convertible frequency air-conditioner is the dedicated compressor that frequency conversion has been selected on the basis of common air-conditioning, increases frequency control system
System, can automatically provide required energy according to the temperature in room.I.e. after room temperature reaches setting value, air-conditioner host then can
It keeps the constant rotational speed of this temperature to operate, realizes the temperature of temperature.Revolving speed directly influences service efficiency, and frequency converter is exactly to use
It controls and adjusts the control system of compressor rotary speed, it is more prominent to be allowed to the ratio showed in terms of energy conservation and comfort, but
In terms of there is noise in operation work.The running frequency of convertible frequency air-conditioner in the process of running increases, the noise of outdoor unit
It is more obvious, and have more ear-piercing high frequency sound；Outdoor unit in low-frequency operation, indoor function issue " drone " etc. abnormal sounds
It rings, it is especially particularly evident in night's rest.As living standards of the people improve, especially air conditioning applications are universal, and air-conditioning is made an uproar
Sound has seriously affected people's daily life, and effectively preventing to electromechanical equipment noise in air-conditioning system just becomes extensive concern
The problem of.
Air-conditioning noise is often to install muffler additional in air-conditioning four-way valve member to eliminate air hose medium-high frequency noise with sound-silencing measures
And low frequency noise.Muffler is that domestic air conditioning and central air-conditioning often use accessory, is generally used for control aerodynamic noise, is benefit
With the sound reflecting effect at device in the duct acoustical behavior mutation, connect by means of unexpected extension, contraction or the side at pipeline interface
Resonant cavity generates acoustic impedance mismatch, makes the sound wave of certain frequencies that reflection, interference etc. occur now in the interface that acoustic impedance is mutated
As to achieve the purpose that noise reduction.Muffler is usually mounted to the inlet and outlet or gas flow tube of rotor compressor or screw compressor
On road, not only air-flow was allowed to be smoothly through, but also can effectively stop or decrease sound can be propagated outward.
In current frequency-conversion air-conditioning system, muffler is mostly unistage type expansion chambers muffler, is to utilize the prominent of pipeline section
So expansion (or shrink) causes acoustic impedance in channel to be mutated, make the sound wave of certain frequencies along pipe transmmision can't pass muffler and
Sound source is reflected back to go.Since sound wave can't pass muffler, also just passes and do not come out, to achieve the purpose that noise reduction.Unistage type expansion
Room muffler can only filter out the single noise under a kind of frequency, can only play sound deadening to certain frequency contents, and allow another
A little frequency contents pass through.At runtime due to transducer air conditioning, different wave length can be issued in different frequency sections compressor
Sound, so unistage type expansion chambers muffler can only play sound deadening in sound of the specific frequency band to specific wavelength,
Effect is just greatly limited.And structure is complicated mostly for existing muffler, and volume is larger, occupies the sky of air-conditioning system
Between it is larger.
Summary of the invention
The purpose of the present invention is to provide a kind of muffler and comprising the air-conditioning of the muffler, to solve existing muffler
Noise reduction narrow range, the low defect of sound-damping qualities so that air-conditioning meets noise requirements.
For this purpose, the present invention provides a kind of muffler, including the first cavity and the second cavity, first cavity include according to
The sectional area of the first cavity, First Transition chamber and the first necking of secondary connection, first necking is less than first cavity
Sectional area；Second cavity includes sequentially connected connector, the second adapter cavity, the second cavity, third adapter cavity and second
Necking, the sectional area of the connector are greater than the sectional area of second cavity, and the sectional area of second necking is less than described
The sectional area of second cavity；First cavity is set in second cavity by the connector, first cavity
Expose outside the connector；It further include distributor, the distributor includes third necking, the 4th adapter cavity and third cavity, institute
The sectional area for stating third necking is less than the sectional area of the third cavity；One end of the third cavity is plugged in first chamber
In body, one end of the third cavity is equipped with distributing pore plate, and the distributing pore plate is equipped with multiple dispensing orifices.
The present invention also provides a kind of air-conditioning, including muffler, the muffler is muffler as described above.
Compared with prior art, the advantages and positive effects of the present invention are: the present invention provides a kind of mufflers, including point
Orchestration, the first cavity and the series connection of the second cavity, can make the flow path of refrigerant by repeatedly extension and shrink, and can make each
Section cavity is mutually staggered by frequency, eliminates the sound of multi-wavelength, multi-frequency, so as to expand noise reduction frequency range,
And then entire noise reduction frequency characteristic can be improved.Muffler of the invention can smash the gas in the refrigerant of gas-liquid mixture phase
Bubble also has good improvement to piping stress and vibration aspect so that the flowing of refrigerant is more uniform.Muffler of the present invention can be with
Vebrato is patted to press transmitting sound, refrigerant flow noise and the pipeline in air-conditioning system and plays good sound deadening, Ke Yiti
High total sound-damping qualities.Since compressor of air conditioner can generate different sound under different running frequencies, so of the invention disappears
The noise reduction range of sound device is wider.And muffler structure of the present invention is simple, and small in size, good muffling effect is got in air-conditioning
It more minimizes, under the trend higher and higher to noise requirements, muffler of the invention has very big application value and advantage.
The present invention also provides a kind of air-conditionings, including muffler as described above, air-conditioning system noise can be made to can satisfy a variety of
It is required that.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the front view of the first cavity of muffler of the present invention；
Fig. 2 is the left view of the first cavity of muffler of the present invention；
Fig. 3 is the front view of the second cavity of muffler of the present invention；
Fig. 4 is the left view of the second cavity of muffler of the present invention；
Fig. 5 is the front view of the distributor of muffler of the present invention；
Fig. 6 is the front view of the distributing pore plate of muffler of the present invention；
Fig. 7 is the structural schematic diagram of muffler of the present invention；
Fig. 8 is the frequency response comparison diagram of the embodiment 1 of air-conditioning of the present invention；
Fig. 9 is the frequency response comparison diagram of the embodiment 2 of air-conditioning of the present invention；
In Fig. 1-Fig. 7, appended drawing reference and its corresponding component names are as follows:
1. the first cavity；11. the first cavity；12. First Transition chamber；13. the first necking；2. the second cavity；21. connection
Mouthful；22. the second adapter cavity；23. the second cavity；24. third adapter cavity；25. the second necking；3. distributor；31. third cavity；
32. the 4th adapter cavity；33. third necking；34. distributing pore plate；35. dispensing orifice.
Specific embodiment
Detailed description of the preferred embodiments below, it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
As shown in Fig. 1-Fig. 7, muffler of the invention include the first cavity 1 and the second cavity 2, the first cavity 1 include according to
The first cavity 11, First Transition chamber 12 and the first necking 13 of secondary connection, the sectional area of the first necking 13 is less than the first cavity 11
Sectional area；Second cavity 2 includes sequentially connected connector 21, the second adapter cavity 22, the second cavity 23, third adapter cavity 24
With the second necking 25, the sectional area of connector 21 is greater than the sectional area of the second cavity 23, and the sectional area of the second necking 25 is less than the
The sectional area of two cavitys 23；First cavity 1 is set in the second cavity 2 by connector 21, and the first cavity 11 exposes outside connection
Mouth 21.Muffler of the invention further includes distributor 3, and distributor 3 includes third necking 33, the 4th adapter cavity 32 and third cavity
31, the sectional area of third necking 33 is less than the sectional area of third cavity 31；One end of third cavity 31 is plugged in the first cavity 11
In, one end of third cavity 31 is equipped with distributing pore plate 34, and distributing pore plate 34 is equipped with multiple dispensing orifices 35.
Muffler of the invention is acted on using the sound reflecting at device in the duct acoustical behavior mutation, by means of pipeline circle
The unexpected extension and contraction in face, generate acoustic impedance mismatch, occur that the sound wave of certain frequencies in the interface that acoustic impedance is mutated anti-
Phenomena such as penetrating and interfering, to achieve the purpose that noise reduction.
The course of work of muffler of the invention is as follows: the refrigerant of gas-liquid mixture phase is followed by cold distributor 3, first
Cavity 1 and the second cavity 2；
1. refrigerant flows through distributor 3: refrigerant enters third cavity 31 from third necking 33, due to the section of third necking 33
Product is less than the sectional area of third cavity 31, so that refrigerant passes through the one extension of flow path, so as to eliminate a certain fixation
Frequency noise；Refrigerant continues to flow to distributing pore plate 34, and distributing pore plate 34 can break the refrigerant of bubble regime, plays preliminary disappear
, so that refrigerant equably flows to the first cavity 11, refrigerant flowing can be effectively reduced with mean allocation cold medium flux in sound effect
Sound；
2. refrigerant flows through the first cavity 1: refrigerant flows to the first necking 13 by First Transition chamber 12 from the first cavity 11,
Due to the first necking 13 sectional area less than the first cavity 11 sectional area so that refrigerant pass through flow path primary contraction,
So as to eliminate a certain fixed frequency noise；
3. refrigerant flows through the second cavity 2: refrigerant flows to the second cavity 21 from the first necking 13, due to cutting for the second cavity 21
Area
Greater than the sectional area of the first necking 13, so that refrigerant passes through the one extension of flow path, so as to eliminate certain
One fixed frequency noise；Refrigerant flows to the second necking 25 by third adapter cavity 24, since the sectional area of the second necking 25 is less than
The sectional area of second cavity 23 is made an uproar so that refrigerant passes through the primary contraction of flow path so as to eliminate a certain fixed frequency
Sound.
Muffler of the invention includes distributor 3, the first cavity 1 and the series connection of the second cavity 2, can make the flowing of refrigerant
Path is by repeatedly extension and shrinks, and so that each section of cavity is mutually staggered by frequency, eliminates multi-wavelength, multi-frequency
Sound so as to expand noise reduction frequency range, and then can improve entire noise reduction frequency characteristic.Muffler of the invention can be with
The bubble in the refrigerant of gas-liquid mixture phase is smashed, so that the flowing of refrigerant is more uniform, to piping stress and vibration aspect
There is good improvement.Muffler of the present invention can transmit sound, refrigerant flow noise and pipeline to the press in air-conditioning system and pat vibration
Dynamic sound plays good sound deadening, and total sound-damping qualities can be improved.Due to compressor of air conditioner meeting under different running frequencies
Different sound is generated, so the noise reduction range of muffler of the invention is wider.And muffler structure letter of the present invention
Single, small in size, good muffling effect is increasingly minimized in air-conditioning, and under the trend higher and higher to noise requirements, of the invention disappears
Sound device has very big application value and advantage.
The ratio of the diameter of the diameter of first necking 13 and the first cavity 11 is 0.26:1-0.28:1, can make first
Cavity 1 reaches optimal erasure effect.Preferably, the diameter of the first necking 13 can be 7.4mm, and the diameter of the first cavity 11 can
Think 27.1mm.
The ratio of the diameter of the diameter of second necking 25 and the second cavity 23 is 0.43:1-0.45:1, can make second
Cavity 2 reaches optimal erasure effect.Preferably, the diameter of the second necking 25 can be 12mm, and the diameter of the second cavity 23 can
Think 27.1mm.
The ratio of the diameter of the diameter and third cavity 31 of third necking 33 is 0.42:1-0.45:1, can to distribute
Device 3 reaches optimal erasure effect.Preferably, the diameter of third necking 33 can be 25.4mm, and the diameter of third cavity 31 can
Think 10.9mm.
The diameter of connector 21 is 28 mm-32mm, it is preferable that the diameter of connector 21 can be 30mm.Connector 21
Diameter be greater than the first cavity 11 diameter so that the first cavity 1 is plugged in connector 21.
The diameter of first cavity 11 is equal to the diameter of the second cavity 23.
The number of dispensing orifice 35 is 2-6, and the aperture of dispensing orifice 35 is 4.5-5mm, and distributing pore plate 34 can be made to reach
Optimal distribution effects.Preferably, the aperture of dispensing orifice 35 is 4.8mm.
The length of second cavity 23 is greater than the length of third cavity 31, and the length of third cavity 31 is greater than the first cavity 11
Length, it is ensured that refrigerant outflow muffler before can in the second cavity 23 by one section it is longer, smoothly flow road
Total sound-damping qualities can be improved in diameter.
First cavity 1, the second cavity 2 and distributor 3 are prepared by red copper, and are integrally formed by mold, in this way may be used
The manufacturing cost for reducing silencing means to the maximum extent, is conducive to produce in batches.First cavity 1 of the invention, 2 and of the second cavity
The size of distributor 3 is not limited to the restriction of the present embodiment, can be according to actual air-conditioning system noise and processing cost aspect
Requirement carry out length and diameter adjustment, enable muffler be suitable for different model air conditioner, to various air-conditioning pressures
Contracting machine carries out noise reduction.
The First Transition chamber 12 of first cavity 1 is conical structure, is conducive to refrigerant and carries out steady flow in the first cavity 1
It is dynamic, vebrato is patted so as to reduce refrigerant flow noise and pipeline.The large diameter end of First Transition chamber 12 and the first cavity 11
It is fixedly connected, the small-caliber end of First Transition chamber 12 is fixedly connected with the first necking 13.
The third adapter cavity 24 of second cavity 2 is conical structure, is conducive to refrigerant and carries out steady flow in the second cavity 2
It is dynamic, vebrato is patted so as to reduce refrigerant flow noise and pipeline.The large diameter end of third adapter cavity 24 and the second necking 25
It is fixedly connected, the small-caliber end of third adapter cavity 24 is fixedly connected with the second cavity 23.
4th adapter cavity 32 of distributor 3 is conical structure, is conducive to refrigerant and carries out smooth flow in distributor 3,
Vebrato is patted so as to reduce refrigerant flow noise and pipeline.The large diameter end of 4th adapter cavity 32 and 33 third cavitys 31 are solid
Fixed connection, the small-caliber end of the 4th adapter cavity 32 are fixedly connected with third necking 33.
Fig. 7 is the structural schematic diagram of muffler of the present invention, in order to enable the structure of muffler is more clear intuitive, first is empty
The structure that chamber 1 is set in inside the second cavity 2 is indicated by the solid line.
The present invention also provides a kind of air-conditioning, including muffler, muffler is muffler as described above, muffler installation
In refrigeration compressor ventilating mouth.Due to using muffler of the invention, air-conditioning system noise of the invention can satisfy a variety of
It is required that.
Embodiment 1
The number of the dispensing orifice 35 of the muffler of the air-conditioning of the present embodiment is 2, as shown in figure 8, solid line is the present embodiment
Air-conditioning frequency response chart, dotted line is the frequency response chart for being not provided with the air-conditioning of muffler.By comparing it is found that with not having
The air-conditioning that muffler is arranged is compared, and the air-conditioning of the present embodiment can play apparent filtering sound deadening to the noise of 4 kinds of frequencies,
Noise reduction frequency range can be expanded, and then entire noise reduction frequency characteristic can be improved, the air-conditioning of the present embodiment, which has, significantly to disappear
Sound advantage.
Embodiment 2
The number of the dispensing orifice 35 of the muffler of the air-conditioning of the present embodiment is 6, as shown in figure 9, solid line is the present embodiment
Air-conditioning frequency response chart, dotted line is the frequency response chart for being not provided with the air-conditioning of muffler.By comparing it is found that with not having
The air-conditioning that muffler is arranged is compared, and the air-conditioning of the present embodiment can play apparent filtering sound deadening to the noise of 4 kinds of frequencies,
Noise reduction frequency range can be expanded, and then entire noise reduction frequency characteristic can be improved, the air-conditioning of the present embodiment, which has, significantly to disappear
Sound advantage.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of muffler, which is characterized in that including the first cavity and the second cavity, first cavity includes sequentially connected
First cavity, First Transition chamber and the first necking, the sectional area of first necking are less than the sectional area of first cavity；Institute
Stating the second cavity includes sequentially connected connector, the second adapter cavity, the second cavity, third adapter cavity and the second necking, described
The sectional area of connector is greater than the sectional area of second cavity, and the sectional area of second necking is less than second cavity
Sectional area；First cavity is set in second cavity by the connector, and first cavity exposes outside described
Connector；
It further include distributor, the distributor includes third necking, the 4th adapter cavity and third cavity, and the third necking is cut
Area is less than the sectional area of the third cavity；One end of the third cavity is plugged in first cavity, the third
One end of cavity is equipped with distributing pore plate, and the distributing pore plate is equipped with multiple dispensing orifices；
The number of the dispensing orifice is 2-6, and the aperture of the dispensing orifice is 4.5-5mm；
The length of second cavity is greater than the length of the third cavity, and the length of the third cavity is greater than first chamber
The length of body；
Refrigerant is followed by the cold distributor, first cavity and second cavity.
2. muffler as described in claim 1, which is characterized in that
The ratio of the diameter of the diameter of first necking and first cavity is 0.26:1-0.28:1.
3. muffler as described in claim 1, which is characterized in that
The ratio of the diameter of the diameter of second necking and second cavity is 0.43:1-0.45:1.
4. muffler as described in claim 1, which is characterized in that
The ratio of the diameter of the diameter of the third necking and the third cavity is 0.42:1-0.45:1.
5. muffler as described in claim 1, which is characterized in that
The diameter of the connector is 28mm-32mm.
6. muffler as described in claim 1, which is characterized in that
The diameter of first cavity is equal to the diameter of second cavity.
7. muffler as described in claim 1, which is characterized in that
First cavity, second cavity and the distributor are prepared by red copper.
8. a kind of air-conditioning, including muffler, which is characterized in that
The muffler is muffler of any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111364.2A CN106766083B (en) | 2016-12-06 | 2016-12-06 | A kind of muffler and the air-conditioning comprising the muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111364.2A CN106766083B (en) | 2016-12-06 | 2016-12-06 | A kind of muffler and the air-conditioning comprising the muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106766083A CN106766083A (en) | 2017-05-31 |
| CN106766083B true CN106766083B (en) | 2019-11-08 |
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| CN201611111364.2A Active CN106766083B (en) | 2016-12-06 | 2016-12-06 | A kind of muffler and the air-conditioning comprising the muffler |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018162690A (en) * | 2017-03-24 | 2018-10-18 | 三菱重工サーマルシステムズ株式会社 | Silencer and air conditioner |
| CN108759190A (en) * | 2018-06-11 | 2018-11-06 | 广东美的制冷设备有限公司 | Flow mixing device and household appliance |
| CN108426390B (en) * | 2018-06-11 | 2024-05-14 | 广东美的制冷设备有限公司 | Mixer and household appliance |
| CN108759188B (en) * | 2018-06-11 | 2024-05-14 | 广东美的制冷设备有限公司 | Mixer and household appliance |
| CN108759191B (en) * | 2018-06-11 | 2024-05-17 | 广东美的制冷设备有限公司 | Mixer and household appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052180A (en) * | 1991-01-16 | 1991-06-12 | 徐火炬 | Broad-band strip-type silencer |
| CN1467440A (en) * | 2002-06-12 | 2004-01-14 | Lg电子株式会社 | Heating/cooling system used in air conditioner |
| CN101709903A (en) * | 2009-12-30 | 2010-05-19 | 宁波奥克斯空调有限公司 | Air conditioner muffler |
| CN102494396A (en) * | 2011-12-30 | 2012-06-13 | 胡德林 | Air-conditioning muffler and manufacturing method thereof |
| GB2514824A (en) * | 2013-06-06 | 2014-12-10 | Russell Wheeler | Sound attenuator with irregular array of internal ducts |
-
2016
- 2016-12-06 CN CN201611111364.2A patent/CN106766083B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052180A (en) * | 1991-01-16 | 1991-06-12 | 徐火炬 | Broad-band strip-type silencer |
| CN1467440A (en) * | 2002-06-12 | 2004-01-14 | Lg电子株式会社 | Heating/cooling system used in air conditioner |
| CN101709903A (en) * | 2009-12-30 | 2010-05-19 | 宁波奥克斯空调有限公司 | Air conditioner muffler |
| CN102494396A (en) * | 2011-12-30 | 2012-06-13 | 胡德林 | Air-conditioning muffler and manufacturing method thereof |
| GB2514824A (en) * | 2013-06-06 | 2014-12-10 | Russell Wheeler | Sound attenuator with irregular array of internal ducts |
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|---|---|
| CN106766083A (en) | 2017-05-31 |
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Inventor after: Zhu Xiaolei Inventor after: Wang Shanyun Inventor after: Pan Cuilian Inventor after: Yan Lijun Inventor after: Wang Hang Inventor before: Zhu Xiaolei Inventor before: Wang Shanyun Inventor before: Pan Cuilian Inventor before: Yan Lijun Inventor before: Wang Hang |
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