CN109210756A - silencer for air conditioner and air conditioner - Google Patents
silencer for air conditioner and air conditioner Download PDFInfo
- Publication number
- CN109210756A CN109210756A CN201811215637.7A CN201811215637A CN109210756A CN 109210756 A CN109210756 A CN 109210756A CN 201811215637 A CN201811215637 A CN 201811215637A CN 109210756 A CN109210756 A CN 109210756A
- Authority
- CN
- China
- Prior art keywords
- outer cylinder
- hole
- air inlet
- cavity
- silencer
- 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.)
- Pending
Links
Classifications
-
- 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
- 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
- F24F2013/242—Sound-absorbing material
-
- 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
- F24F2013/247—Active noise-suppression
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Duct Arrangements (AREA)
Abstract
The present invention provides a kind of silencer for air conditioner and air conditioners.Silencer for air conditioner includes: outer cylinder, two internal partitions, two tracheaes and interference tube, and outer cylinder has two ports being oppositely arranged；Two internal partition intervals are installed in outer cylinder and outer cylinder are divided into three cavitys set gradually；Two tracheaes are inserted into outer cylinders and all have part tube body from two ports respectively to be located at outside outer cylinder, the plug-in opening that each tracheae is each passed through a cavity and is inserted on neighbouring internal partition, it is located therein on the tracheae of a cavity and offers in first through hole and cavity filled with sound-absorbing material, the second through-hole is offered on the tracheae of another cavity；Interference tube is located on the outside of outer cylinder, and is connected on the tube body that two tracheaes are located at outside outer cylinder.Silencer for air conditioner provided by the invention designs sound-absorbing noise elimination, expansion noise elimination, sympathetic response noise elimination, interference noise elimination combination noise elimination structure, increase deadening frequency band, raising acoustic attenuation performance by setting internal partition and interference tube.
Description
Technical field
The present invention relates to air-conditioning technical fields, more specifically, be related to a kind of silencer for air conditioner and it is a kind of include the sky
Call the air conditioner of silencer.
Background technique
Existing frequently-used silencer for air conditioner, noise reduction type are mostly single expansion cavity configuration, and erasure effect is poor,
Noise reduction frequency range is relatively narrow, cannot reach good noise elimination noise reduction effect, influence user experience effect.
The silencer of some compound noise reductions is proposed in the related technology, such as by concatenating two independent noise elimination cavitys,
Achieve the purpose that broadening noise reduction frequency range, but structure is complicated, manufacturing cost is high, and the length of silencer is longer, cannot integrate noise elimination
Effect and piping space layout.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, the purpose of one aspect of the invention is, a kind of silencer for air conditioner is provided.
The purpose of another aspect of the invention is, provides a kind of air conditioner including above-mentioned silencer for air conditioner.
To achieve the above object, the technical solution of first aspect present invention provides a kind of silencer for air conditioner, comprising: outer
Cylinder, the outer cylinder have two ports being oppositely arranged；Two internal partitions, interval are installed in the outer cylinder, and will be described outer
Cylinder is divided into three cavitys set gradually, offers plug-in opening on each internal partition；Two tracheaes, respectively from described outer
Two ports of cylinder are inserted into the outer cylinder and all have the outside that part tube body is located at the outer cylinder, and the one of each tracheae
End be each passed through a cavity and one end of plug-in opening or in which a tracheae for being inserted on the neighbouring internal partition according to
The secondary plug-in opening for passing through two cavitys and being inserted on two internal partitions, the gas being located therein in a cavity
It is offered on the tube body of pipe in first through hole and the cavity and is formed as sound absorption cavity filled with sound-absorbing material, be located at another described
The second through-hole is offered on the tube body of the tracheae in cavity, the cavity is formed as Helmholtz resonator, described in three
The cavity that the tracheae is not inserted into cavity is formed as expansion chamber, and two tracheaes are located at the tube body outside the outer cylinder
It is upper to offer the first connecting hole and the second connecting hole respectively；And interference tube, it is located on the outside of the outer cylinder, and the one of the interference tube
End is connected to first connection hole, the other end is connected to second connection hole.
The silencer for air conditioner that above-mentioned technical proposal of the present invention provides, makes an uproar for the broadband section generated in outdoor machine of air-conditioner
Sound, the noise elimination of design sound-absorbing, expansion are eliminated the noise, Helmholtz sympathetic response is eliminated the noise, the combination noise elimination structure of interference noise elimination, can increase noise elimination frequency
Rate section improves acoustic attenuation performance, improves noise；Specifically, outer cylinder is divided into three chambers using spaced two internal partitions
Body is formed in first through hole and the cavity filled with sound-absorbing material wherein offering on the tube body for the tracheae being inserted into a cavity
Sound absorption cavity, fraction enter sound absorption cavity by the first through hole on tracheae, and sound-absorbing material absorbs sound source, and sound-absorbing material can select
With the material that can absorb high-frequency noise, such as glass fibre, to reduce high frequency noise；The tracheae being inserted into another cavity
The second through-hole is offered on tube body, the cavity is formed as Helmholtz resonator, fraction passes through the second through-hole on tracheae
Into Helmholtz resonator, when identical as the intrinsic frequency of resonance cavity structure of airtight in the noise sound wave that air-flow generates, will generate
Helmholtz sympathetic response, noise reduction of resonating, thus by the intrinsic frequency for reasonably adjusting Helmholtz resonator, to reduce certain frequency band
Noise (such as sound absorption cavity and expansion chamber fail a certain frequency band noise eliminated)；The cavity that tracheae is not inserted into three cavitys is formed
For expansion chamber, air-flow enters expansion chamber, expands noise reduction, and since the caliber of two tracheaes is smaller, the sectional area of expansion chamber is larger,
Air-flow occurs cross section expansion, shrinks, generate acoustic impedance mismatch, so that the noise sound wave that air-flow generates when flowing through expansion chamber
Acoustic impedance mutation interface occur reflection, interference phenomena such as, the sound wave of middle low frequency is cancelled out each other, can reduce in low frequency make an uproar
Sound；Another part air-flow is by the first connecting hole on a wherein tracheae, after interference tube, through the second connection on another tracheae
Hole, and eliminates the noise through sound-absorbing, expands noise elimination and the air-flow that flows out converges after Helmholtz sympathetic response is eliminated the noise, and passes through and rationally designs interference tube
Length so that the two column sound waves through two propagateds in outer cylinder and outside outer cylinder, through above-mentioned two propagated difference away from
Interference phenomenon is generated in tracheae exit from after, if the amplitude of two column sound waves is identical, in the space region for the odd-multiple that phase difference is π
Domain, two column sound waves will cancel out each other namely the superposition of opposite in phase sound wave after wave crest reduce, lower noise, thus dry by design
Relate to pipe, can further broadening deadening frequency band, reduce noise；Above structure is equivalent to eliminates the noise comprising level Four grade, disappears in conjunction with sound-absorbing
Sound, expansion noise elimination, Helmholtz sympathetic response is eliminated the noise and interference is eliminated the noise, and effectively broadening deadening frequency band, raising acoustic attenuation performance can reach drop
The purpose of low noise promotes user experience effect.
In addition, it is above-mentioned using two internal partitions built-in in outer cylinder, outer cylinder is divided into three cavitys, such as to outer cylinder
First two internal partitions are placed in outer cylinder when necking processing, then necking processing is carried out to outer cylinder, to be carried out to outer cylinder
It is realized after necking processing and the space in outer cylinder is divided into three cavitys, both made the structure of entire silencer for air conditioner in this way
Simplify, easy to process, manufacturing cost is low, can also increase silencer in the size for not changing existing silencer outer cylinder or slightly
In the case where the size of outer cylinder, by increasing internal partition in outer cylinder and add outside outer cylinder interference tube, become level-one silencer into
Level Four silencer, to be conducive to comprehensive noise elimination effect and be piped space layout, convenient for above-mentioned silencer for air conditioner in air-conditioner pipe
Installation in road can be to be promoted to avoid silencer for air conditioner compared to the scheme of two independent noise elimination cavitys of existing concatenation
Noise elimination effect and lead to that silencer length is too long, installs in air-conditioning duct inconvenient problem.
In addition, the silencer for air conditioner that above-mentioned technical proposal of the present invention provides can also have following additional technical feature:
In the above-mentioned technical solutions, it is preferable that the quantity of the first through hole is multiple and is distributed in positioned at described
On the tube body of the tracheae in sound absorption cavity.
Above scheme, by being spaced apart multiple first through hole on the tube body of tracheae, to ensure sound source by multiple first
Through-hole enters in sound absorption cavity, and is absorbed by sound-absorbing material, so that it is guaranteed that noise elimination noise reduction effect；Preferably, multiple first through hole
It, specifically, can be first along the length direction of tracheae in tracheae in array distribution on the tube body for the tracheae being located in sound absorption cavity
A column first through hole is processed on tube body, then rotates tracheae, is processed on the tube body of tracheae along the length direction of tracheae another
Column first through hole is realized with this and processes multiple row first through hole on the tube body of tracheae, and certainly, multiple first through hole are being located at suction
Arrangement form on the tube body of tracheae in sound chamber is not limited to above-mentioned specific restriction, such as can also be in the gas being located in sound absorption cavity
A column first through hole is designed on the tube body of pipe；Preferably, the sum of via area of multiple first through hole is greater than the cross section of tracheae
Product, to reduce the flow velocity of air-flow, the noise of air-flow flowing is also decreased.
In the above-mentioned technical solutions, it is preferable that the quantity of second through-hole is one or two.
The quantity of second through-hole is preferably one to two, it is ensured that table in tracheae and internal partition plug-in opening, internal partition and outer cylinder
The good leak tightness for the Helmholtz resonator that face is constituted, can be improved the noise elimination effect of Helmholtz resonator.
In the above-mentioned technical solutions, it is preferable that second through hole is connected with resonating tube, and the resonating tube is entirely located at
In the Helmholtz resonator.
Resonating tube is connected by the second through hole on tracheae, spy can be designed by adjusting the length of resonating tube
Determine frequency, to eliminate the noise in conjunction with sound-absorbing, expand to eliminate the noise and interfere and eliminate the noise, eliminates the noise of wider frequency section, reach and reduce or eliminate
The purpose of noise；Optionally, resonating tube is inserted into the second through-hole and is welded and fixed with the tracheae for offering the second through-hole, processing side
Just, it is connected firmly.
In the above-mentioned technical solutions, it is preferable that two ports of the outer cylinder are respectively air inlet and air outlet, two institutes
Stating tracheae is respectively air inlet pipe and an air outlet pipe, and one end of the air inlet pipe is inserted into the air inlet and is inserted into the neighbouring air inlet
The plug-in opening on the internal partition being arranged, the first through hole is offered in the air inlet pipe, and one end of the escape pipe is inserted
Enter the plug-in opening on the internal partition of the gas outlet and the neighbouring gas outlet setting of insertion, is offered on the escape pipe
Second through-hole, three cavitys sequentially form as the sound absorption cavity, the expansion chamber and the Helmholtz resonator；
Or two ports of the outer cylinder are respectively air inlet and air outlet, two tracheaes are respectively air inlet pipe and an air outlet pipe, institute
State the plug-in opening that one end of air inlet pipe is inserted into the air inlet and is inserted on the internal partition of neighbouring air inlet setting, institute
It states and offers second through-hole in air inlet pipe, one end of the escape pipe is inserted into the gas outlet and is inserted into the neighbouring outlet
Plug-in opening on the internal partition of mouthful setting, offers the first through hole on the escape pipe, three cavitys are successively
Be formed as the Helmholtz resonator, the expansion chamber and the sound absorption cavity.
In above two scheme, air inlet pipe and an air outlet pipe is used as in interpolation pipe insertion outer cylinder, air inlet pipe and an air outlet pipe
In one formed between internal partition and outer cylinder at one end sound absorption cavity, another between internal partition and outer cylinder at one end
Formed Helmholtz resonator, two expansion chamber is formed between internal partition and outer cylinder, be connected between air inlet pipe and an air outlet pipe
Interference tube and outer cylinder composition interference noise-reducing structure, to form level Four noise elimination structure, above-mentioned design is so that entire idle call is eliminated the noise
The noise elimination effect of device is more preferable, and structural symmetry is more preferable, and structure is more firm.
In the above-mentioned technical solutions, it is preferable that two ports of the outer cylinder are respectively air inlet and air outlet, two institutes
Stating tracheae is respectively air inlet pipe and an air outlet pipe, one end of the air inlet pipe be inserted into the air inlet and be sequentially inserted into two it is described in
Plug-in opening on partition offers the first through hole on the tube body that the air inlet pipe is located therein in a cavity, is located at
Second through-hole is offered on tube body in another cavity, three cavitys sequentially form as the sound absorption cavity, institute
It states Helmholtz resonator and the expansion chamber or three cavitys sequentially forms as the Helmholtz resonator, described
Sound absorption cavity and the expansion chamber；Or two ports of the outer cylinder are respectively air inlet and air outlet, two tracheae difference
For air inlet pipe and an air outlet pipe, one end of the escape pipe is inserted into the gas outlet and is sequentially inserted into inserting on two internal partitions
Hole is filled, the first through hole is offered on the tube body that the escape pipe is located therein in a cavity, is located at another chamber
Offer second through-hole on tube body in body, three cavitys sequentially form for the expansion chamber, the sound absorption cavity and
The Helmholtz resonator or three cavitys sequentially form as the expansion chamber, the Helmholtz resonator and institute
State sound absorption cavity.
In above two scheme, one in air inlet pipe and an air outlet pipe is inserted into outer cylinder as in interpolation pipe insertion outer cylinder
The cavity wherein where a pipeline section of interior air inlet pipe (or escape pipe) is formed as sound absorption cavity (or Helmholtz resonator), another
Cavity where pipeline section is formed as Helmholtz resonator (or sound absorption cavity), another institute in air inlet pipe and an air outlet pipe is at one end
Internal partition and outer cylinder between form expansion chamber, be connected to interference tube between air inlet pipe and an air outlet pipe and disappear with outer cylinder composition interference
Sound structure is equally reached good noise elimination effect to form level Four noise elimination structure, and be conducive to comprehensive noise elimination effect and
It is piped space layout.
In the above-mentioned technical solutions, it is preferable that described one end of the interference tube be inserted into first connecting hole and with open
The tracheae equipped with first connecting hole is welded and fixed, the other end insertion of the interference tube second connection
It hole and is welded and fixed with the tracheae for offering second connecting hole.
The connection type of above-mentioned interference pipe and two tracheaes, it is easy to process, it is connected firmly.
In the above-mentioned technical solutions, it is preferable that the length L2 of the interference tube meets: L2=L1+c*n/2f, wherein n is
Integer, c are the medium velocity of sound, and f is frequency of noise elimination, and L1 is the central point of first connecting hole and the center of second connecting hole
The distance between point.
Above scheme can adjust frequency of noise elimination section well, inhale to combine by rationally designing the value of L2 and L1
Sound is eliminated the noise, expansion is eliminated the noise and sympathetic response noise elimination reaches broadening deadening frequency band, improves the effect of acoustic attenuation performance；It should be noted that L1
Namely the length of span of interference tube.
In any of the above-described technical solution, it is preferable that the outer cylinder includes the cylindrical section at middle part, the necking section at both ends and company
The changeover portion between the cylindrical section and the necking section is connect, two necking sections are solid with two tracheae welding respectively
It is fixed.
Above scheme processes above-mentioned outer cylinder using necking down process, so that outer cylinder is easy to process, structural strength is high；Specifically
Two internal partition intervals can be first placed in outer cylinder by ground when carrying out necking processing to outer cylinder, then carried out necking to outer cylinder and added
Space in outer cylinder is divided into three cavitys to realize after carrying out necking processing to outer cylinder by work；Two contractings of outer cylinder
Mouthful section is welded and fixed with two tracheaes respectively, so that outer cylinder and two tracheaes are connected firmly.
In the above-mentioned technical solutions, it is preferable that the outer diameter of cylindrical section is within the scope of 40mm~60mm in the middle part of the outer cylinder, institute
The length of outer cylinder is stated within the scope of 140mm~180mm.
Above scheme is conducive to comprehensive noise elimination effect and piping space layout, namely both by rationally designing outer cylinder size
Ensure that above-mentioned silencer for air conditioner has good noise elimination noise reduction effect, and convenient for above-mentioned silencer for air conditioner in air-conditioning duct
Installation.
In the above-mentioned technical solutions, it is preferable that the length of the sound absorption cavity is within the scope of 40mm~50mm, the expansion chamber
Length within the scope of 50mm~60mm, the length of the Helmholtz resonator is within the scope of 50mm~70mm.
Above scheme, by rationally designing the length of sound absorption cavity, expansion chamber and Helmholtz resonator, so that sound-absorbing
Chamber, expansion chamber and Helmholtz resonator eliminate the noise of different frequency range respectively, so that interference be combined to eliminate the noise, increase entire eliminate the noise
The deadening frequency band of device, and then acoustic attenuation performance is improved, achieve the purpose that reduce noise；Certainly, sound absorption cavity, expansion chamber and Helmholtz
The length of resonator is not limited to above-mentioned specific restriction.
In the above-mentioned technical solutions, it is preferable that the center of the central point of first connecting hole and second connecting hole
The distance between point L1 is within the scope of 150mm~190mm.
Above scheme, namely design interference tube length of span in 110mm~150mm, to ensure that interference tube connection is in place
On two tracheaes outside the outer cylinder, it is ensured that the connection of interference tube is more convenient.
The technical solution of second aspect of the present invention provides a kind of air conditioner, including as described in any of the above-described technical solution
Silencer for air conditioner.
The air conditioner that above-mentioned technical proposal of the present invention provides, because it includes that idle call described in any of the above-described technical solution disappears
Sound device, thus the beneficial effect with silencer for air conditioner described in any of the above-described technical solution.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic view of the front view of the silencer for air conditioner of one embodiment of the invention；
Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view；
Fig. 3 is air flow direction schematic diagram in silencer for air conditioner shown in Fig. 2.
Wherein, corresponding relationship of the Fig. 1 into Fig. 3 between appended drawing reference and component names are as follows:
1 outer cylinder, 2 internal partitions, 21 plug-in openings, 3 air inlet pipe, 31 first through hole, 32 first connecting holes, 4 escape pipes, 41 second
Through-hole, 42 second connecting holes, 5 sound-absorbing materials, 6 interference tubes, 7 resonating tubes；
Arrow in Fig. 3 indicates air flow direction.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
Implement in a manner of using other than the one described here, therefore, protection scope of the present invention is not by following public tool
The limitation of body embodiment.
The silencer for air conditioner and air conditioner of 1 to Fig. 3 description according to some embodiments of the invention with reference to the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of silencer for air conditioner provided according to some embodiments of the invention, comprising: outer cylinder 1,
Two internal partitions, 2, two tracheaes (i.e. air inlet pipe 3, escape pipe 4), sound-absorbing material 5 and interference tube 6.
Specifically, outer cylinder 1 has two ports being oppositely arranged；Two intervals of internal partition 2 are installed in outer cylinder 1, and will
Outer cylinder 1 is divided into three cavitys set gradually, offers plug-in opening 21 on each internal partition 2；Two tracheaes are respectively from outer cylinder 1
The insertion of two ports outer cylinder 1 and all have the outside that part tube body is located at outer cylinder 1, one end of each tracheae is each passed through one
One end of cavity and the plug-in opening 21 or in which a tracheae that are inserted on neighbouring internal partition 2 sequentially passes through two cavitys and is inserted into
Plug-in opening 21 on two internal partitions 2 offers first through hole 31 and cavity on the tube body for the tracheae being located therein in a cavity
It is interior to be formed as sound absorption cavity filled with sound-absorbing material 5, the second through-hole 41, chamber are offered on the tube body of the tracheae in another cavity
The bodily form becomes Helmholtz resonator c, and the cavity that tracheae is not inserted into three cavitys is formed as expansion chamber b, and two tracheaes are located at
The first connecting hole 32 and the second connecting hole 42 are offered on tube body outside outer cylinder 1 respectively；Interference tube 6 is located at 1 outside of outer cylinder, and
One end of interference tube 6 is connected at the first connecting hole 32, the other end is connected at the second connecting hole 42.
As shown in Figures 2 and 3, a in diagram indicates that sound absorption cavity, b indicate that expansion chamber, c indicate Helmholtz resonator.
The silencer for air conditioner that the above embodiment of the present invention provides, for the broadband section noise generated in outdoor machine of air-conditioner,
The combination noise elimination structure that sound-absorbing is eliminated the noise, expansion is eliminated the noise, Helmholtz sympathetic response is eliminated the noise, interference is eliminated the noise is designed, frequency of noise elimination can be increased
Section improves acoustic attenuation performance, improves noise；Specifically, outer cylinder 1 is divided into three chambers using spaced two internal partitions 2
Body, wherein being offered on the tube body for the tracheae being inserted into a cavity in first through hole 31 and the cavity filled with 5 shape of sound-absorbing material
At sound absorption cavity a, fraction enters sound absorption cavity a by the first through hole 31 on tracheae, and sound-absorbing material 5 absorbs sound source, sound absorber
Material 5 can select the material that can absorb high-frequency noise, such as glass fibre, to reduce high frequency noise；It is inserted in another cavity
The second through-hole 41 is offered on the tube body of the tracheae entered, the cavity is formed as Helmholtz resonator c, fraction passes through tracheae
On the second through-hole 41 enter Helmholtz resonator c, intrinsic frequency with resonance cavity structure of airtight in the noise sound wave that air-flow generates
When identical, Helmholtz sympathetic response will be generated, noise reduction of resonating, to pass through the intrinsic frequency for reasonably adjusting Helmholtz resonator
Rate, to reduce the noise (noise that such as sound absorption cavity and expansion chamber fail a certain frequency band eliminated) of certain band frequency section；Three chambers
The cavity that tracheae is not inserted into body is formed as expansion chamber b, and air-flow enters expansion chamber b, noise reduction is expanded, due to the caliber of two tracheaes
Smaller, the sectional area of expansion chamber b is larger, and air-flow occurs cross section expansion, shrinks, generate acoustic impedance when flowing through expansion chamber b
Mismatch, so that in the interface that acoustic impedance is mutated phenomena such as reflecting, interfering, the sound of middle low frequency occur for the noise sound wave that air-flow generates
Wave is cancelled out each other, and Middle and low frequency noise can be reduced；Another part air-flow is by the first connecting hole 32 on a wherein tracheae, by dry
After relating to pipe 6, through the second connecting hole 42 on another tracheae, after eliminating the noise through sound-absorbing, expanding noise elimination and Helmholtz sympathetic response noise elimination
The air-flow of outflow converges, by rationally designing the length of interference tube 6, so that through in outer cylinder 1 and outer cylinder 1 outer two propagateds
Two column sound waves are generating interference phenomenon in tracheae exit after above-mentioned two propagated different distance, if two column sound waves
Amplitude is identical, and in the area of space for the odd-multiple that phase difference is π, two column sound waves will cancel out each other namely opposite in phase sound wave is folded
Add rear wave crest to reduce, lower noise, thus by design interference tube, can further broadening deadening frequency band, reduce noise；It is above-mentioned
Structure is equivalent to eliminates the noise comprising level Four grade, can in conjunction with sound-absorbing noise elimination, expansion noise elimination, Helmholtz sympathetic response noise elimination and interference noise elimination
Effective broadening deadening frequency band, improves acoustic attenuation performance, achievees the purpose that reduce noise, promotes user experience effect.
In addition, it is above-mentioned using two internal partitions 2 built-in in outer cylinder 1, outer cylinder 1 is divided into three cavitys, such as right
Outer cylinder 1 first two internal partitions 2 are placed in outer cylinder when necking processing, then carries out necking processing to outer cylinder 1, thus external
Cylinder 1 is to realize the space in outer cylinder 1 being divided into three cavitys after carrying out necking processing, and entire idle call had both been made to eliminate the noise in this way
The structure of device simplifies, and easy to process, manufacturing cost is low, can also in the size for not changing existing silencer outer cylinder 1 or slightly
In the case where the size for increasing silencer outer cylinder 1, by increasing internal partition 2 in outer cylinder 1 and adding interference tube 6 outside outer cylinder 1,
Change level-one silencer, to be conducive to comprehensive noise elimination effect and be piped space layout, is convenient for above-mentioned idle call into level Four silencer
Installation of the silencer in air-conditioning duct, compared to the existing scheme for concatenating two or more noise elimination cavitys, this programme can
It is to promote noise elimination effect and cause silencer length is too long, installation is inconvenient in air-conditioning duct to ask to avoid silencer for air conditioner
Topic.
Preferably, as shown in Figure 1 to Figure 3,1 both ends necking of outer cylinder namely outer cylinder 1 use necking down process machine-shaping, tool
Body, first two intervals of internal partition 2 can be placed in outer cylinder 1 when carrying out necking processing to outer cylinder 1, then outer cylinder 1 is carried out
Space in outer cylinder 1 is divided into three cavitys to realize after carrying out necking processing to outer cylinder 1 by necking processing.
Preferably, as shown in Figures 2 and 3, the quantity of first through hole 31 is multiple and is distributed in positioned at sound absorption cavity a
In tracheae tube body on.
By being spaced apart multiple first through hole 31 on the tube body of tracheae, with ensure sound source by multiple first through hole 31 into
Enter into sound absorption cavity a, and absorbed by sound-absorbing material 5, so that it is guaranteed that noise elimination noise reduction effect；Preferably, multiple first through hole 31 are in
Array distribution be located at sound absorption cavity a in tracheae tube body on, specifically, can first along the length direction of tracheae tracheae pipe
A column first through hole 31 is processed on body, then rotates tracheae, is processed on the tube body of tracheae along the length direction of tracheae another
Column first through hole 31 is realized with this and processes multiple row first through hole 31 on the tube body of tracheae, and certainly, multiple first through hole 31 exist
Arrangement form on the tube body of tracheae in sound absorption cavity a is not limited to above-mentioned specific restriction, such as can also be located at sound-absorbing
A column first through hole 31 is designed on the tube body of tracheae in chamber a；Preferably, the sum of the via area of multiple first through hole 31 is greater than
The cross-sectional area of tracheae, to reduce the flow velocity of air-flow, the noise of air-flow flowing is also decreased.
Preferably, the quantity of the second through-hole 41 is one or two, it is ensured that tracheae and 2 plug-in opening 21 of internal partition, internal partition 2
And the good leak tightness of the Helmholtz resonator c of 1 inner surface of outer cylinder composition, the noise elimination effect of Helmholtz resonator c can be improved；
As shown in Figures 2 and 3, the quantity of the second through-hole 41 is one.
Optionally, as shown in Figures 2 and 3, it is connected with resonating tube 7 at the second through-hole 41, resonating tube 7 is entirely located at He Muhuo
Hereby in resonator c.
By connecting resonating tube 7 at the second through-hole 41 on tracheae, can be designed by adjusting the length of resonating tube 7
Specific frequency out, thus in conjunction with sound-absorbing eliminate the noise, expansion eliminate the noise and interference eliminate the noise, eliminate wider frequency section noise, reach reduction or
Eliminate the purpose of noise；Optionally, resonating tube 7 is inserted into the second through-hole 41 and welds with the tracheae for offering the second through-hole 41 solid
It is fixed, it is easy to process, it is connected firmly.
Optionally, as shown in Figures 2 and 3, resonating tube 7 is the bend pipe being connected at the second through-hole 41, mainly by He Muhuo
The hereby space limitation of resonator c, by the way that resonating tube 7 is designed to bend pipe, to come in the small volume of Helmholtz resonator c
The length for reasonably adjusting resonating tube 7, designs specific frequency, to eliminate the noise in conjunction with sound-absorbing, expansion noise elimination, interference noise elimination, eliminates
The noise of wider frequency section achievees the purpose that reduce or eliminate noise；Preferably, flowing side of the resonating tube 7 along air-flow in tracheae
To bending.Certainly, if not limited by the space of Helmholtz resonator c, resonating tube 7 can also be designed to straight tube；Resonating tube 7
Specific design length, can rationally design, be not specifically limited herein according to the actual situation.
Embodiment one:
As shown in Figures 2 and 3, two ports of outer cylinder 1 are respectively air inlet and air outlet, and two tracheaes are respectively air inlet
Pipe 3 and escape pipe 4, one end insertion air inlet of air inlet pipe 3 and the plug-in opening being inserted on the internal partition 2 of neighbouring air inlet setting
21, first through hole 31 is offered in air inlet pipe 3, and first through hole 31 is preferably several, the internal partition 2 of neighbouring air inlet setting and outer
Sound absorption cavity a is formed between cylinder 1, is filled with sound-absorbing material 5 in sound absorption cavity a；One end insertion gas outlet of escape pipe 4 is simultaneously inserted into neighbouring
Plug-in opening 21 on the internal partition 2 of gas outlet setting, the second through-hole 41 is offered on escape pipe 4, and the second through-hole 41 is preferably one
It is a or two, resonating tube 7 is optionally connected at the second through-hole 41, resonating tube 7 is inserted into the second through-hole 41 and simultaneously welds with escape pipe 4
It is fixed, closed Helmholtz resonator c is formed between the internal partition 2 and outer cylinder 1 that neighbouring escape pipe 4 is arranged；Two internal partitions 2
Between formed expansion chamber b, sequentially form along three cavitys of air current flow direction as sound absorption cavity a, expansion chamber b and Helmholtz sympathetic response
Chamber c；Air inlet pipe 3, which is located on the tube body outside outer cylinder 1, offers the first connecting hole 32, and escape pipe 4 is located at the tube body outside outer cylinder 1
On offer the second connecting hole 42, one end of interference tube 6 is connected at the first connecting hole 32, the other end is connected to the second connecting hole
At 42, interference tube 6 and the composition interference noise-reducing structure of outer cylinder 1.
Embodiment two:
Two ports of outer cylinder 1 are respectively air inlet and air outlet, and two tracheaes are respectively air inlet pipe 3 and escape pipe 4, into
The plug-in opening 21 on air inlet and the internal partition 2 of the neighbouring air inlet setting of insertion is inserted into one end of tracheae 3, opens up in air inlet pipe 3
There is the second through-hole 41, the second through-hole 41 is preferably one or two, is optionally connected with resonating tube 7, sympathetic response at the second through-hole 41
Pipe 7 is inserted into the second through-hole 41 and is welded and fixed with air inlet pipe 3, is formed between the internal partition 2 and outer cylinder 1 that neighbouring air inlet pipe 3 is arranged
Closed Helmholtz resonator c；One end insertion gas outlet of escape pipe 4 is simultaneously inserted on the internal partition 2 of neighbouring gas outlet setting
Plug-in opening 21, offer first through hole 31 on escape pipe 4, first through hole 31 is preferably several, neighbouring gas outlet setting it is interior
Sound absorption cavity a is formed between partition 2 and outer cylinder 1, is filled with sound-absorbing material 5 in sound absorption cavity a；Expansion is formed between two internal partitions 2
Chamber b is sequentially formed along three cavitys of air current flow direction as Helmholtz resonator c, expansion chamber b and sound absorption cavity a；Air inlet pipe 3
The first connecting hole 32 is offered on the tube body outside outer cylinder 1, escape pipe 4, which is located on the tube body outside outer cylinder 1, offers
Two connecting holes 42, one end of interference tube 6 is connected at the first connecting hole 32, the other end is connected at the second connecting hole 42, interference
Pipe 6 and the composition interference noise-reducing structure of outer cylinder 1.
In above-described embodiment one and embodiment two, air inlet pipe 3 and escape pipe 4 are inserted into outer cylinder 1 as interpolation pipe, into
One in tracheae 3 and escape pipe 4 form sound absorption cavity a, another institute at one end between internal partition 2 and outer cylinder 1 at one end
Internal partition 2 and outer cylinder 1 between form Helmholtz resonator c, form expansion chamber b between two internal partitions 2, be connected to air inlet
Interference tube 6 and the composition interference noise-reducing structure of outer cylinder 1 between pipe 3 and escape pipe 4, so that level Four noise elimination structure is formed, it is above-mentioned to set
Meter is so that the noise elimination effect of entire silencer for air conditioner is more preferable, and structural symmetry is more preferable, and structure is more firm.
Embodiment three:
Two ports of outer cylinder 1 are respectively air inlet and air outlet, and two tracheaes are respectively air inlet pipe 3 and escape pipe 4, into
The plug-in opening 21 that one end of tracheae 3 is inserted into air inlet and is sequentially inserted on two internal partitions 2, air inlet pipe 3 are located therein a cavity
In tube body on offer first through hole 31 (first through hole 31 is preferably several), offered on the tube body in another cavity
Second through-hole 41 (the second through-hole 41 is preferably one or two, is optionally connected with resonating tube 7 at the second through-hole 41), along air-flow
The cavity of flow direction three sequentially forms for sound absorption cavity a, Helmholtz resonator c and expansion chamber b, or along air current flow direction three
A cavity sequentially forms as Helmholtz resonator c, sound absorption cavity a and expansion chamber b, and sound-absorbing material 5 is filled in sound absorption cavity a；Into
One end of tracheae 3, which is located on the tube body outside outer cylinder 1, offers the first connecting hole 32, and escape pipe 4 is located at the tube body outside outer cylinder 1
On offer the second connecting hole 42, one end of interference tube 6 is connected at the first connecting hole 32, the other end is connected to the second connecting hole
At 42, interference tube 6 and the composition interference noise-reducing structure of outer cylinder 1.
Example IV:
Two ports of outer cylinder 1 are respectively air inlet and air outlet, and two tracheaes are respectively air inlet pipe 3 and escape pipe 4, out
The plug-in opening 21 that one end of tracheae 4 is inserted into gas outlet and is sequentially inserted on two internal partitions 2, escape pipe 4 are located therein a cavity
In tube body on offer first through hole 31 (first through hole 31 is preferably several), offered on the tube body in another cavity
Second through-hole 41 (the second through-hole 41 is preferably one or two, is optionally connected with resonating tube 7 at the second through-hole 41), three chambers
Body, which sequentially forms, to be sequentially formed for expansion chamber b, sound absorption cavity a and Helmholtz resonator c or three cavitys as expansion chamber b, He Mu
Hereby resonator c and sound absorption cavity a, sound absorption cavity a are interior filled with sound-absorbing material 5 suddenly；Air inlet pipe 3, which is located on the tube body outside outer cylinder 1, to be opened
Equipped with the first connecting hole 32, escape pipe 4, which is located on the tube body outside outer cylinder 1, offers the second connecting hole 42, one end of interference tube 6
It is connected at the first connecting hole 32, the other end is connected at the second connecting hole 42, interference tube 6 and the composition interference noise reduction knot of outer cylinder 1
Structure.
In above-described embodiment three and example IV, one in air inlet pipe 3 and escape pipe 4 is used as interpolation pipe to be inserted into outer cylinder
In 1, the cavity wherein where a pipeline section for the air inlet pipe 3 (or escape pipe 4) being inserted into outer cylinder 1 is formed as sound absorption cavity a (or conspicuous nurse
The cavity hereby where resonator c), another pipeline section is formed as Helmholtz resonator c (or sound absorption cavity a), air inlet pipe 3 and outlet suddenly
In pipe 4 another form expansion chamber b between internal partition 2 and outer cylinder 1 at one end, be connected to air inlet pipe 3 and escape pipe 4 it
Between interference tube 6 and the composition interference noise-reducing structure of outer cylinder 1 to form level Four noise elimination structure be equally reached good disappear
Sound effective value, and be conducive to comprehensive noise elimination effect and be piped space layout.
In any of the above-described embodiment, it is preferable that as shown in Figure 1 to Figure 3, the first connecting hole is inserted into one end of interference tube 6
32 and be welded and fixed with the tracheae for offering the first connecting hole 32, the other end of interference tube 6 be inserted into the second connecting hole 42 and with
The tracheae for offering the second connecting hole 42 is welded and fixed, and the connection type of above-mentioned interference pipe 6 and two tracheaes is easy to process, even
It connects securely.
Optionally, as shown in Figure 1, the axis of two tracheaes is overlapped, interference tube 6 includes the straight tube for being parallel to tracheae setting
Section and two connection pipeline sections for being connected to straight pipe both ends, wherein a connection pipeline section is connected at the first connecting hole 32, is another
One connection pipeline section is connected at the second connecting hole 42, it is ensured that smooth outflow of the air-flow in interference tube 6, so that it is guaranteed that interference tube 6
Interference noise elimination effect.
Preferably, the length L2 of interference tube 6 meets: L2=L1+c*n/2f, wherein n is integer, and c is the medium velocity of sound, and f is
Frequency of noise elimination, L1 be the first connecting hole 32 central point and the second connecting hole 42 the distance between central point, as shown in Figure 1,
L1 in diagram indicates the central point of the first connecting hole 32 and the distance between the central point of the second connecting hole 42.
By rationally designing the value of L2 and L1, frequency of noise elimination section can be adjusted well, to eliminate the noise in conjunction with sound-absorbing, is swollen
Swollen noise elimination and sympathetic response noise elimination reach broadening deadening frequency band, improve the effect of acoustic attenuation performance；It should be noted that L1 namely interference tube
6 length of span.
In any of the above-described embodiment, it is preferable that as shown in Figure 1, outer cylinder 1 includes the necking of the cylindrical section, both ends at middle part
Section and the changeover portion being connected between cylindrical section and necking section, two necking sections are welded and fixed with two tracheaes respectively, using contracting
Mouth technique processes above-mentioned outer cylinder 1, so that outer cylinder 1 is easy to process, structural strength is high；Two necking sections of outer cylinder 1 are respectively with two
A tracheae is welded and fixed, so that outer cylinder 1 and two tracheaes are connected firmly.
Preferably, the outer diameter of 1 middle part cylindrical section of outer cylinder is within the scope of 40mm~60mm, the length of outer cylinder 1 140mm~
Within the scope of 180mm, as shown in Figure 1, the D in diagram indicates that the outer diameter of 1 middle part cylindrical section of outer cylinder, L indicate the length of outer cylinder 1.
By rationally designing 1 size of outer cylinder, be conducive to comprehensive noise elimination effect and piping space layout, namely both ensured above-mentioned
Silencer for air conditioner has good noise elimination noise reduction effect, and is convenient for installation of the above-mentioned silencer for air conditioner in air-conditioning duct.
Certainly, the wall thickness of outer cylinder 1 is relatively thin, and the wall thickness of outer cylinder 1 also can be ignored herein.
Preferably, the length of sound absorption cavity a is within the scope of 40mm~50mm, and the length of expansion chamber b is in 50mm~60mm range
Interior, the length of Helmholtz resonator c is within the scope of 50mm~70mm.
By rationally designing the length of sound absorption cavity a, expansion chamber b and Helmholtz resonator c, so that sound absorption cavity a, expansion
Chamber b and Helmholtz resonator c eliminates the noise of different frequency range respectively, so that interference be combined to eliminate the noise, increases entire silencer
Deadening frequency band, and then acoustic attenuation performance is improved, achieve the purpose that reduce noise；Certainly, sound absorption cavity a, expansion chamber b and Helmholtz are total
The length of tymapanum c is not limited to above-mentioned specific restriction.
Preferably, as shown in Figure 1, the distance between the central point of the central point of the first connecting hole 32 and the second connecting hole 42
L1 within the scope of 150mm~190mm, namely design interference tube 6 length of span in 110mm~150mm, to ensure interference tube 6
It is connected on two tracheaes being located at outside outer cylinder 1, it is ensured that the connection of interference tube 6 is more convenient.
In any of the above-described embodiment, it is preferable that outer cylinder 1 is stainless steel material.
Silencer outer cylinder 1 preferably uses stainless steel material, and such as SUS439, opposite copper material price is lower, to reduce manufacture
Cost；The other materials such as copper product can also be used in certain silencer outer cylinder 1.
In any of the above-described embodiment, it is preferable that sound-absorbing material 5 is glass fibre, and sound-absorbing material 5 preferably uses glass fibers
Dimension, sound-absorbing effect are good；Certainly, sound-absorbing material 5 or other sound-absorbing materials.
In one specific embodiment, silencer for air conditioner includes 1, two internal partition 2 of outer cylinder, air inlet pipe 3, escape pipe 4, inhales
Sound material 5, interference tube 6 and resonating tube 7,1 both ends necking of outer cylinder, air inlet pipe 3 by 1 inlet end of outer cylinder insertion outer cylinder 1 and one in every
Interstitial hole (i.e. plug-in opening 21) on plate 2, escape pipe 4 are inserted into the centre on outer cylinder 1 and another internal partition 2 by 1 outlet side of outer cylinder
Hole (i.e. plug-in opening 21), and air inlet pipe 3 and escape pipe 4 are welded with outer cylinder 1；Hole array (i.e. multiple first is opened in air inlet pipe 3
Through-hole 31)；Sound absorption cavity a is constituted between the internal partition 2 and outer cylinder 1 at 3 end of air inlet pipe, it is intracavitary to fill up sound-absorbing material 5；On escape pipe 4
Aperture (i.e. the second through-hole 41), resonating tube 7 insert in the hole and weld with escape pipe 4；The internal partition 2 and outer cylinder 1 at 4 end of escape pipe it
Between constitute resonator；Outer cylinder 1 is stretched out into and out of tracheae, and extend out to aperture (i.e. the first connecting hole in two end pipes outside outer cylinder 1
32 and second connecting hole 42), interference tube 6 inserts in the hole and welds with into and out of tracheae.
Specifically, arrow as shown in Figure 3 indicates that air flow direction, fraction are entered by hole array in air inlet pipe 3
Sound absorption cavity a, 5 sound-absorbing of sound-absorbing material are eliminated the noise；Air-flow is by air inlet pipe 3, and into expansion chamber b, expansion is eliminated the noise；Fraction passes through later
Resonating tube 7 enters resonator, and sympathetic response is eliminated the noise；Fraction is through the first connecting hole 32 in air inlet pipe 3, after interference tube 6, warp
The second connecting hole 42 on escape pipe 4 converges, opposite in phase with the air-flow after eliminating the noise through sound-absorbing, expanding noise elimination and sympathetic response noise elimination
Wave crest reduces after sound wave superposition, lower noise；This structure is equivalent to eliminates the noise comprising level Four, eliminates the noise in conjunction with sound-absorbing, expansion is eliminated the noise, altogether
Ring eliminate the noise and interference eliminate the noise, can effectively broadening deadening frequency band, improve acoustic attenuation performance.
The embodiment of second aspect of the present invention provides a kind of air conditioner, and the idle call including such as above-mentioned any embodiment disappears
Sound device.
The air conditioner that the above embodiment of the present invention provides, because it includes the silencer for air conditioner of any of the above-described embodiment, because
And the beneficial effect of the silencer for air conditioner with any of the above-described embodiment, details are not described herein.
In conclusion silencer for air conditioner provided in an embodiment of the present invention, for the broadband section generated in outdoor machine of air-conditioner
Noise by the way that two internal partitions are arranged in outer cylinder, and increases interference tube on the outside of outer cylinder, designs sound-absorbing noise elimination, expansion disappears
Sound, the combination noise elimination structure that Helmholtz sympathetic response is eliminated the noise, interference is eliminated the noise, can increase deadening frequency band, improve acoustic attenuation performance；And structure
Simplify, manufacturing cost is low, also helps comprehensive noise elimination effect and piping space layout.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " etc.
It shall be understood in a broad sense, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection, or electricity
Connection；It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (13)
1. a kind of silencer for air conditioner characterized by comprising
Outer cylinder, the outer cylinder have two ports being oppositely arranged；
Two internal partitions, interval is installed in the outer cylinder, and the outer cylinder is divided into three cavitys set gradually, each
Plug-in opening is offered on the internal partition；
Two tracheaes are inserted into the outer cylinder from two ports of the outer cylinder respectively and all have part tube body positioned at described outer
The outside of cylinder, the inserting that one end of each tracheae is each passed through a cavity and is inserted on the neighbouring internal partition
The plug-in opening that hole or in which one end of a tracheae sequentially pass through two cavitys and be inserted on two internal partitions,
It is offered on the tube body for the tracheae being located therein in a cavity in first through hole and the cavity filled with sound absorber
Material is formed as sound absorption cavity, and the second through-hole, the cavity shape are offered on the tube body of the tracheae in another cavity
As Helmholtz resonator, the cavity that the tracheae is not inserted into three cavitys is formed as expansion chamber, two institutes
It states and offers the first connecting hole and the second connecting hole respectively on the tube body that tracheae is located at outside the outer cylinder；With
Interference tube is located on the outside of the outer cylinder, and one end of the interference tube is connected to first connection hole, the other end connects
It connects in second connection hole.
2. silencer for air conditioner according to claim 1, which is characterized in that
The quantity of the first through hole is multiple and is distributed on the tube body of the tracheae in the sound absorption cavity.
3. silencer for air conditioner according to claim 1, which is characterized in that
The quantity of second through-hole is one or two.
4. silencer for air conditioner according to claim 1, which is characterized in that
Second through hole is connected with resonating tube, and the resonating tube is entirely located in the Helmholtz resonator.
5. silencer for air conditioner according to claim 1, which is characterized in that
Two ports of the outer cylinder are respectively air inlet and air outlet, and two tracheaes are respectively air inlet pipe and an air outlet pipe,
The plug-in opening that one end of the air inlet pipe is inserted into the air inlet and is inserted on the internal partition of neighbouring air inlet setting,
The first through hole is offered in the air inlet pipe, one end of the escape pipe is inserted into the gas outlet and is inserted into go out described in
Plug-in opening on the internal partition of port setting, offers second through-hole on the escape pipe, three cavitys according to
It is secondary to be formed as the sound absorption cavity, the expansion chamber and the Helmholtz resonator；Or
Two ports of the outer cylinder are respectively air inlet and air outlet, and two tracheaes are respectively air inlet pipe and an air outlet pipe,
The plug-in opening that one end of the air inlet pipe is inserted into the air inlet and is inserted on the internal partition of neighbouring air inlet setting,
Second through-hole is offered in the air inlet pipe, one end of the escape pipe is inserted into the gas outlet and is inserted into go out described in
Plug-in opening on the internal partition of port setting, offers the first through hole on the escape pipe, three cavitys according to
It is secondary to be formed as the Helmholtz resonator, the expansion chamber and the sound absorption cavity.
6. silencer for air conditioner according to claim 1, which is characterized in that
Two ports of the outer cylinder are respectively air inlet and air outlet, and two tracheaes are respectively air inlet pipe and an air outlet pipe,
The plug-in opening that one end of the air inlet pipe is inserted into the air inlet and is sequentially inserted on two internal partitions, the air inlet pipe position
The first through hole is offered on tube body in wherein one cavity, is offered on the tube body in another cavity
Second through-hole, three cavitys sequentially form as the sound absorption cavity, the Helmholtz resonator and the expansion chamber,
Or three cavitys sequentially form as the Helmholtz resonator, the sound absorption cavity and the expansion chamber；Or
Two ports of the outer cylinder are respectively air inlet and air outlet, and two tracheaes are respectively air inlet pipe and an air outlet pipe,
The plug-in opening that one end of the escape pipe is inserted into the gas outlet and is sequentially inserted on two internal partitions, the escape pipe position
The first through hole is offered on tube body in wherein one cavity, is offered on the tube body in another cavity
Second through-hole, three cavitys sequentially form as the expansion chamber, the sound absorption cavity and the Helmholtz resonator,
Or three cavitys sequentially form as the expansion chamber, the Helmholtz resonator and the sound absorption cavity.
7. silencer for air conditioner according to claim 1, which is characterized in that
Described one end of the interference tube be inserted into first connecting hole and with the tracheae that offers first connecting hole
Be welded and fixed, the other end of the interference tube be inserted into second connecting hole and with offer second connecting hole
The tracheae is welded and fixed.
8. silencer for air conditioner according to claim 1, which is characterized in that
The length L2 of the interference tube meets: L2=L1+c*n/2f, wherein n is integer, and c is the medium velocity of sound, and f is frequency of eliminating the noise
Rate, L1 are the central point of first connecting hole and the distance between the central point of second connecting hole.
9. silencer for air conditioner according to any one of claim 1 to 8, which is characterized in that
The outer cylinder include middle part cylindrical section, both ends necking section and be connected between the cylindrical section and the necking section
Changeover portion, two necking sections are welded and fixed with two tracheaes respectively.
10. silencer for air conditioner according to claim 9, which is characterized in that
The outer diameter of cylindrical section is within the scope of 40mm~60mm in the middle part of the outer cylinder, and the length of the outer cylinder is in 140mm~180mm model
In enclosing.
11. silencer for air conditioner according to claim 10, which is characterized in that
The length of the sound absorption cavity is within the scope of 40mm~50mm, and the length of the expansion chamber is within the scope of 50mm~60mm, institute
The length of Helmholtz resonator is stated within the scope of 50mm~70mm.
12. silencer for air conditioner according to claim 10, which is characterized in that
The distance between the central point of the central point of first connecting hole and second connecting hole L1 is in 150mm~190mm
In range.
13. a kind of air conditioner, which is characterized in that including the silencer for air conditioner as described in any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215637.7A CN109210756A (en) | 2018-10-18 | 2018-10-18 | silencer for air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215637.7A CN109210756A (en) | 2018-10-18 | 2018-10-18 | silencer for air conditioner and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109210756A true CN109210756A (en) | 2019-01-15 |
Family
ID=64980864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811215637.7A Pending CN109210756A (en) | 2018-10-18 | 2018-10-18 | silencer for air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109210756A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406460A (en) * | 2020-10-13 | 2021-02-26 | 恒大新能源汽车投资控股集团有限公司 | Silencer and vehicle-mounted air conditioner silencing system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042598A (en) * | 2001-07-30 | 2003-02-13 | Daikin Ind Ltd | Split flow muffler and air conditioner employing the same |
| CN102536386A (en) * | 2011-12-29 | 2012-07-04 | 湛江市华夏消声器有限公司 | Structurally modified automobile exhaust muffler assembly |
| CN204006603U (en) * | 2014-05-06 | 2014-12-10 | 新昌县行峰制冷有限公司 | A kind of air conditioner muffler |
| CN205654400U (en) * | 2016-04-13 | 2016-10-19 | 上汽通用汽车有限公司 | Silencer |
| CN107542668A (en) * | 2017-09-11 | 2018-01-05 | 珠海格力电器股份有限公司 | Denoising device, compressor and air conditioner |
| CN207195128U (en) * | 2017-09-06 | 2018-04-06 | 安徽众汇制冷有限公司 | A kind of multi-cavity type air conditioner muffler |
-
2018
- 2018-10-18 CN CN201811215637.7A patent/CN109210756A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042598A (en) * | 2001-07-30 | 2003-02-13 | Daikin Ind Ltd | Split flow muffler and air conditioner employing the same |
| CN102536386A (en) * | 2011-12-29 | 2012-07-04 | 湛江市华夏消声器有限公司 | Structurally modified automobile exhaust muffler assembly |
| CN204006603U (en) * | 2014-05-06 | 2014-12-10 | 新昌县行峰制冷有限公司 | A kind of air conditioner muffler |
| CN205654400U (en) * | 2016-04-13 | 2016-10-19 | 上汽通用汽车有限公司 | Silencer |
| CN207195128U (en) * | 2017-09-06 | 2018-04-06 | 安徽众汇制冷有限公司 | A kind of multi-cavity type air conditioner muffler |
| CN107542668A (en) * | 2017-09-11 | 2018-01-05 | 珠海格力电器股份有限公司 | Denoising device, compressor and air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406460A (en) * | 2020-10-13 | 2021-02-26 | 恒大新能源汽车投资控股集团有限公司 | Silencer and vehicle-mounted air conditioner silencing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5783782A (en) | Multi-chamber muffler with selective sound absorbent material placement | |
| CN102087852B (en) | Acoustic resonator and sound chamber | |
| WO2011024234A1 (en) | Exhaust device for internal combustion engine | |
| CN105569771B (en) | Silencer and engineering truck | |
| CN209724450U (en) | A kind of multitube labyrinth silencer | |
| CN109341051A (en) | Silencer for air conditioner and air conditioner | |
| CN109210756A (en) | silencer for air conditioner and air conditioner | |
| CN109210755A (en) | silencer for air conditioner and air conditioner | |
| KR101108799B1 (en) | Hole Array Silencer using Virtual Division for Low Frequency Range | |
| CN109341052A (en) | Silencer for air conditioner and air conditioner | |
| CN208887075U (en) | Silencer for air conditioner and air conditioner | |
| CN206309551U (en) | Muffler and refrigeration compressor | |
| CN109210754A (en) | silencer for air conditioner and air conditioner | |
| JP2944552B2 (en) | Silencer | |
| CN106286222A (en) | Muffler and refrigeration compressor | |
| CN208901610U (en) | Silencer for air conditioner and air conditioner | |
| CN208983581U (en) | Silencer for air conditioner and air conditioner | |
| CN208901609U (en) | Silencer for air conditioner and air conditioner | |
| CN206376917U (en) | Absolute silencer is used in the experiment of full frequency band large noise elimination quantity auto NVH | |
| CN215597743U (en) | Silencer and silencing device | |
| CN106368783B (en) | Full frequency band large noise elimination quantity auto NVH tests absolute silencer | |
| CN208983583U (en) | Silencer for air conditioner and air conditioner | |
| CN210623088U (en) | Anti formula export muffler for roots blower | |
| CN205047274U (en) | Silencer and engineering vehicle | |
| US11454148B2 (en) | Muffler for vehicle for implementing sporty exhaust sound |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190115 |
|
| RJ01 | Rejection of invention patent application after publication |