CN109186069A - Silencing device and air conditioner of air conditioner - Google Patents
Silencing device and air conditioner of air conditioner Download PDFInfo
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- CN109186069A CN109186069A CN201811133037.6A CN201811133037A CN109186069A CN 109186069 A CN109186069 A CN 109186069A CN 201811133037 A CN201811133037 A CN 201811133037A CN 109186069 A CN109186069 A CN 109186069A
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- 230000030279 gene silencing Effects 0.000 title claims description 50
- 238000004378 air conditioning Methods 0.000 claims description 79
- 238000005452 bending Methods 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 16
- 239000011358 absorbing material Substances 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 230000003584 silencer Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 20
- 238000001704 evaporation Methods 0.000 description 15
- 230000008020 evaporation Effects 0.000 description 15
- 230000008030 elimination Effects 0.000 description 8
- 238000003379 elimination reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000011491 glass wool Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Duct Arrangements (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a silencer of an air conditioner and the air conditioner, wherein the silencer of the air conditioner can be arranged at an air inlet and/or an air outlet of the air conditioner, the silencer (1) comprises a plurality of clapboards, and the clapboards are spaced to form a plurality of bent channels, so that noise can be reflected and absorbed for many times when entering the bent channels. The invention can lead the plurality of clapboards to form a plurality of bent channels (forming labyrinth channels) at intervals, lead the air flow to flow through the channels and enter the air conditioner, and simultaneously lead the noise to be capable of reflecting, changing angles and absorbing for a plurality of times in the process of transmitting the noise from the inside to the outside of the air conditioner, thereby effectively absorbing and reducing the vibration and the noise and effectively reducing the noise from transmitting from the inside to the outside of the air conditioner.
Description
Technical field
The invention belongs to air-conditioning technical fields, and in particular to a kind of silencing means and air conditioner of air-conditioning.
Background technique
In the prior art, automobile air conditioning system evaporation collateral resistance is larger, and evaporation fan running speed is higher, and then what is generated makes an uproar
Sound is higher, and another aspect automobile air conditioning system evaporation fan downstream is longer, and air outlet is more in bus, and outlet air relatively disperses, therefore makes an uproar
Sound is weaker by the noise that air outlet radiates, and stronger along the noise that inverted draft direction is radiated by air inlet, from
And lead to the experience of user in the car are as follows: the level of noise highest in bus near the return air inlet of automobile air conditioning system car side；It is existing through car
Field experience, the Kuanping Terrane that existing automobile air conditioning system evaporation fan generates are conducted to car at return air inlet, cause user experience not
It is good.
Since there are technical problems, this hairs such as air inlet or air outlet pneumatic noise be larger for air-conditioning in the prior art
Bright researching and designing goes out the silencing means and air conditioner of a kind of air-conditioning.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming air-conditioning in the prior art, there are air inlet or outlet air
The mouth biggish defect of pneumatic noise, to provide the silencing means and air conditioner of a kind of air-conditioning.
The present invention provides a kind of silencing means of air-conditioning, can be set to the air inlet and/or air outlet of the air-conditioning
Place, and the silencing means includes multiple partitions, multiple baffle intervals and the bending type channel for forming many places bending, so that
Noise, which enters in the bending type channel, can occur multiple reflections and absorption.
Preferably,
Multiple partitions include spaced at least two riser and at least two transverse slats, and the riser includes
Two adjacent starting staves and the second riser, the transverse slat include protruding on the starting stave towards the direction of the second riser
The first transverse slat being arranged and the second transverse slat being arranged on second riser towards the direction of starting stave protrusion, and
First transverse slat and second transverse slat are arranged in a staggered manner.
Preferably,
The starting stave and second riser are arranged in parallel, and first transverse slat be two or more, described second
Transverse slat is more than two, and the extending direction of the starting stave or second riser, more than two first transverse slats and
It is successively arranged alternately between more than two second transverse slats.
Preferably,
Sandwiched θ angle between first transverse slat and the starting stave, and/or, second transverse slat and described second
Also sandwiched θ angle between riser, and the θ is located in (60 °, 120 °) range；And/or first transverse slat and described second
Transverse slat is arranged in parallel.
Preferably,
θ=90 ° so that first transverse slat and the starting stave vertical connection, second transverse slat with it is described
Second riser vertical connection.
Preferably,
The equal length of first transverse slat and second transverse slat and be m1, and the starting stave and described the
Spacing distance m between two risers, and the value range for having m1 is (0.4m, 0.6m) or 2m1 >=m.
Preferably,
The equal length of the starting stave and second riser and be h, and first transverse slat and described second
The thickness of transverse slat is equal and is h2, and the value range of h2 is (0.0615h, 0.1231h).
Preferably,
The spacing in multiple risers, between two risers of spaced furthest be W, and two neighboring riser it
Between spacing be equal, and the spacing between two neighboring riser be W/6.
Preferably,
The equal length of the starting stave and second riser and be h, between two neighboring first transverse slat
Spacing and two neighboring second transverse slat between spacing it is equal and be L, and the value range for having L be (0.4h,
0.6h)。
Preferably,
The riser and/or the transverse slat are the structure of inner hollow, and/or, the table of the riser and/or the transverse slat
Multiple holes are provided on face.
Preferably,
The pore diameter range D in the hole is 0.5mm~1.5mm, and the percent opening φ in the hole is 10%.
Preferably,
It is also filled up in the structure of the inner hollow of the riser and/or the transverse slat and is provided with sound-absorbing material.
Preferably,
The silencing means is axially symmetric structure, and the silencing means is arranged in the air inlet of air-conditioning, it is described into
Air port also has air inlet central symmetry axes, the air-conditioning also relative to the air inlet central symmetry axes at axially symmetric structure,
And the central symmetry axes coincide with the air inlet central symmetry axes.
It further includes the noise reduction dress of air-conditioning above-mentioned that the present invention also provides a kind of air conditioners with air inlet and air outlet
It sets, the silencing means is set at the position of the air inlet and/or the air outlet.
Preferably,
The air conditioner is automobile air conditioning system, and the silencing means is set to the air inlet position.
The silencing means and air conditioner of a kind of air-conditioning provided by the invention have the following beneficial effects:
1. the silencing means including multiple partitions is arranged by the air inlet and/or air outlet in air-conditioning in the present invention, so that
Multiple baffle interval intervals and form the bending type channel (formed labyrinth type channel) of many places bending, so that air-flow flows through the channel
While inside into air-conditioning, moreover it is possible to so that during transmitting from air-conditioning interior multiple reflections, angle can occur for noise
Degree changes and absorbs, to effectively absorb and reduce vibration and noise, effectively reduces noise past external communication out of air-conditioning,
Noise, which is effectively reduced, especially reduces noise existing for air inlet；
2. the present invention also by opening up multiple micropores on partition, enables to sound to enter in the micropore and is made an uproar with reducing
Sound, and hollow cavity also is set in diaphragm internal, enables to sound to be able to enter in the cavity to form multiple reflections and
Achieve the purpose that further decrease noise, it can be further to noise by the way that sound-absorbing material further is arranged in partition
It is absorbed with vibration, to further reduce vibration and noise.
Detailed description of the invention
Fig. 1 is the internal structure schematic top plan view of automobile air conditioning system of the invention；
Fig. 2 is the structural schematic diagram of the Section A-A of Fig. 1；
Fig. 3 is the air-flow flow schematic diagram of automobile air conditioning system of the invention；
Fig. 4 is the noise transmission schematic diagram of automobile air conditioning system of the invention；
Fig. 5 is the positive structure schematic of the silencing means in the automobile air conditioning system in Fig. 2；
Fig. 6 is the enlarged structure schematic diagram of the S portion in Fig. 5；
Fig. 7 is the enlarged structure schematic diagram of the part Q in Fig. 6；
Fig. 8 is the noise transmission schematic diagram in the silencing means in Fig. 6.
Appended drawing reference indicates in figure are as follows:
1, silencing means；1a, central symmetry axes；2, riser；21, starting stave；22, the second riser；3, transverse slat；31,
First transverse slat；32, the second transverse slat；4, hole；5, sound-absorbing material；6, air inlet；7, evaporator；8, centrifugal blower；9, compressor；
10, controller；11, axial flow blower；12, condenser；13, air outlet.
Specific embodiment
As shown in figures 1-8, the present invention provides a kind of silencing means of air-conditioning, can be set to the air inlet of the air-conditioning
And/or at air outlet, and the silencing means 1 include multiple partitions, multiple baffle intervals and formed labyrinth type many places bending
Bending type channel, so that noise, which enters in labyrinth type bending type channel, can occur multiple reflections and absorption.
The silencing means including multiple partitions is arranged by the air inlet and/or air outlet in air-conditioning in the present invention, so that more
A baffle interval interval and form the bending type channel (formed labyrinth type channel) of many places bending, the channel is flowed through for air-flow into
While entering inside air-conditioning, moreover it is possible to so that during transmitting from air-conditioning interior multiple reflections, angle can occur for noise
Change and absorb, to effectively absorb and reduce vibration and noise, effectively reduces noise out of air-conditioning toward external communication, have
Effect, which reduces noise, especially reduces noise existing for air inlet.
Preferably,
Multiple partitions include spaced at least two riser 2 and at least two transverse slats 3, and the riser 2 wraps
Two adjacent starting staves 21 and the second riser 22 are included, the transverse slat 3 includes on the starting stave 21 towards the second riser
The first transverse slat 31 and protruded on second riser 22 towards the direction of the starting stave 21 that 22 direction protrusion is arranged
The second transverse slat 32 being arranged, and first transverse slat 31 and second transverse slat 32 are arranged in a staggered manner.
This is the further preferred structure type of partition of the invention, by the way that more than two risers are arranged and at two
The multiple transverse slats being oppositely arranged respectively on riser, enable to sandwiched between riser and transverse slat and formed prevent noise from inside to
The barrier structure of external communication, and it is capable of forming the bending type channel, air-flow air-breathing from the channel is allowed, to reach
The effect of noise transmission is effectively reduced while meeting air-breathing, erasure effect is more preferable.
Preferably,
The starting stave 21 and second riser 22 are arranged in parallel, and first transverse slat 31 is two or more, institute
The second transverse slat 32 is stated as two or more, and in the extending direction of the starting stave 21 or second riser 22, two or more
It is successively arranged alternately between first transverse slat 31 and more than two second transverse slats 32.This is of the invention first, second
Further preferred set-up mode between riser and the first, second transverse slat, by more than two first transverse slats and two with
Upper second transverse slat alternates the mode of setting between the first and second riser disposed in parallel, so that being formed successively curved
The bending type channel of folding, so that noise is in every change that a direction will occur after a transverse slat, so that noise is continuous
Ground is reflected and is touched, to by noise absorption or be reflected back inside air-conditioning, effectively further prevents noise inside air-conditioning
It passes out outside air-conditioning especially air-conditioning air inlet, further increases erasure effect.As shown in Figure 8.
Preferably,
Sandwiched θ angle between first transverse slat 31 and the starting stave 21, and/or, second transverse slat 32 and institute
Also sandwiched θ angle is stated between the second riser 22, and the θ is located in (60 °, 120 °) range；And/or first transverse slat 31
It is arranged in parallel with second transverse slat 32.This is the first transverse slat and starting stave and the second transverse slat and the second riser of the invention
Between preferred sandwiched angle, can slightly can be floated in (60 °, 120 °) range, i.e. in vertical two sides therebetween
It is dynamic, it can be effectively formed the channel continuously bent, so that air-flow forms continuously serpentine flow channel, noise is from inside
It is constantly reflected and is absorbed to outside, improve sound-absorbing effect, the first and second transverse slats are arranged in parallel can be continuously
And the identical bending type channel unit of structure, and then noise is constantly absorbed and reduced successively, improve erasure effect.
Preferably,
θ=90 °, so that first transverse slat 31 and 21 vertical connection of starting stave, second transverse slat 32
With 22 vertical connection of the second riser.This is the first transverse slat and starting stave and the second transverse slat and the second riser of the invention
Between preferred sandwiched angle so that vertical connection between transverse slat and riser so that formed it is as in Figure 2-4 from down toward
On the vertical bend unit successively bent so that air-flow bending be upwardly into inside air-conditioning, and noise from top to bottom to
Outer constantly to be stopped and absorbed, the rectangular bend unit channel of multilayer effectively can prevent noise from propagating outward, not by noise
It is reflected back inside air-conditioning and absorbs disconnectedly, improve erasure effect.
Preferably,
(i.e. the first transverse slat is perpendicular from starting stave to second for the equal length of first transverse slat 31 and second transverse slat 32
The length of plate direction protrusion, the i.e. length that the second transverse slat is protruded from the second riser to starting stave direction) and be m1, and institute
The value range stated spacing distance m between starting stave 21 and second riser 22, and have m1 is (0.4m, 0.6m), or
Person 2m1 >=m.Preferably 0.577h.
This is the preferred size relationship between the first and second risers of the first and second transverse slats of the invention, i.e., by m1's
Value range is that 0.5m or more enables to the total length between two partitions to be in the horizontal direction greater than or equal between two risers
Width, noise can be effectively prevent directly to blaze abroad downwards from the gap between two partitions, i.e., from top to bottom by noise
Bending type transmitting and reflection, noise is constantly absorbed and is reflected back inside air-conditioning, improves erasure effect.
Preferably,
The equal length of the starting stave 21 and second riser 22 and be h, and first transverse slat 31 and institute
The thickness (along the extending direction of starting stave) for stating the second transverse slat 32 is equal and be h2, and the value range of h2 is
(0.0615h, 0.1231h).Preferably 0.077h.This is the thickness of the first and second transverse slats of the invention and the length of two risers again
Preferred size relationship between degree, such structure enable to arrange multiple transverse slats in the length direction of riser vertical direction,
The size, which embodies, can arrange 8-16 block transverse slat, preferably arrange 12,13 pieces, to realize to noise multiple reflections and absorption
Function and effect reduce noise, improve erasure effect.Such as Fig. 6.
Preferably,
It is W, and two neighboring riser in the spacing in multiple risers 2, between two risers 2 of spaced furthest
Spacing between 2 is equal, and the spacing between two neighboring riser 2 is W/6.This is the arragement direction of the invention in riser
Preferred constructive form and size relationship, i.e., entire air inlet width direction arrange 6 groups of transverse slat riser structures, can be to row
Noise at cloth direction 6 carries out noise reduction and vibration damping simultaneously, effectively further improves erasure effect.Such as Fig. 5.
Preferably,
The equal length of the starting stave 21 and second riser 22 and be h, two neighboring first transverse slat
The spacing between spacing and two neighboring second transverse slat 32 between 31 is equal and is L, and has the value range of L
For (0.4h, 0.6h).Preferably 0.461h.This be between the two adjacent transverse slats being arranged on same riser of the invention between
Away from the preferred size relationship between total riser length, that is, forms the bending type unit of a minimum structural unit, to make an uproar
Sound is absorbed or is reflected to the greatest extent in the unitary space, and the effect of vibration silencer is farthest improved.
Preferably,
As shown in fig. 7, the riser 2 and/or the transverse slat 3 are the structure of inner hollow, and/or, the riser 2 and/
Or multiple holes 4 are provided on the surface of the transverse slat 3.By opening up multiple micropores on partition, enabling to sound to enter should
To reduce noise in micropore, and also diaphragm internal be arranged hollow cavity, enable to sound to be able to enter in the cavity with
It forms multiple reflections and achievees the purpose that further decrease noise.Staggeredly interval forms septal pathways (in industry usually between baffle
Referred to as labyrinth type), the micropore of 1mm or so is offered on baffle, the hollow cooperation micropore of baffle is conducive to come sound in cavity
Returning reflection loss becomes thermal energy, adds sound-absorbing material better effect.
Preferably,
The pore diameter range D in the hole is 0.5mm~1.5mm, and the percent opening φ in the hole is 10%, (φ be (riser (or
Transverse slat) on hole the gross area)/(surface area of the riser (or transverse slat)) × 100).Experiments have shown that such pore diameter range and opening
Porosity can farthest make noise enter micropore and be fallen by reflection-absorption, improve noise dampening efficiency.
Preferably,
It is also filled up in the structure of the inner hollow of the riser 2 and/or the transverse slat 3 and is provided with sound-absorbing material 5.Preferably
Super glass wool.Further noise and vibration can be inhaled by being filled with sound-absorbing material in hollow structure
It receives, to further reduce vibration and noise.
Preferably,
The silencing means 1 is axially symmetric structure, and has a riser, the riser 2 at axis of symmetry 1a in its center
It is overlapped with the central symmetry axes, and the air inlet of air-conditioning is arranged in the silencing means 1, the air inlet also has
Central symmetry axes, the air-conditioning are entered the wind also relative to the air inlet central symmetry axes into axially symmetric structure, and the center
The axis of symmetry coincides with the air inlet central symmetry axes.This is because automobile air conditioning system evaporation fan is in symmetrical cloth in the direction z
It sets, all channels are symmetric in the center in the direction noise elimination structure z, Fig. 5 are seen, to reach preferable noise elimination effect.
The present invention program is shown in Fig. 4, increases at return air inlet to inhibit evaporation fan noise to be propagated from return air inlet to car
" micropore labyrinth type " silencing apparatus.The silencing means is made of multiple channels, and Fig. 7 is seen in each channel, by riser 2, transverse slat 3
Composition, wherein riser, transverse slat are hollow structure and are filled with sound-absorbing material 5, preferably super glass wool.In addition to this riser,
Transverse slat surface is provided with the micropore of different pore size, different number, and pore diameter range D is 0.5mm~1.5mm, and micropore percent opening φ is
10%, (φ is (gross area in hole)/(riser/transverse slat surface area) × 100), micropore is in transverse slat respectively, two tables of vertical version
Interlaced arrangement between face.The angle theta of riser and transverse slat is 90 °.In each channel, transverse slat is in interlaced arrangement in the direction z, in view of big
Bar air-conditioning evaporation fan is arranged symmetrically in the direction z, all channels the direction noise elimination structure z center in symmetrical point
Cloth is shown in Fig. 5, to reach preferable noise elimination effect.Using the height h of noise elimination structure as reference, the value of horizontal plnk thickness h2 is
0.077h, single channel y direction width value are W/6, and W is silencing means effective width, see Fig. 5, transverse slat width m1 value is
0.577h, m1=m/2, transverse slat spacing L value are 0.461h, see Fig. 6.
It further includes the noise reduction dress of air-conditioning above-mentioned that the present invention also provides a kind of air conditioners with air inlet 6 and air outlet
1 is set, the silencing means 1 is set at the position of the air inlet 6 and/or the air outlet.Pass through the air inlet in air-conditioning
And/or air outlet setting include multiple partitions silencing means so that multiple baffle interval intervals and formed many places bending it is curved
Fold-type channel (formed labyrinth type channel), while flow through the channel for air-flow and enter inside air-conditioning, moreover it is possible to so that noise from
During transmitting multiple reflections, angulation change and absorption can occur for air-conditioning interior, to effectively absorb and subtract
Small vibration and noise effectively reduce noise out of air-conditioning toward external communication, noise is effectively reduced especially reduces air inlet and deposit
Noise.
Preferably, the air conditioner is automobile air conditioning system, and the silencing means 1 is set to 6 position of air inlet.Due to big
Air outlet is more in bar, and outlet air relatively disperses, therefore the noise that noise is radiated by air outlet is weaker, and along inverted draft side
It is stronger to the noise radiated by air inlet, so as to cause the experience of user in the car are as follows: automobile air conditioning system car side in bus
Level of noise highest near return air inlet, therefore such setting can especially reduce the noise of automobile air conditioning system air inlet, mention
High erasure effect enhances the usage comfort of bus passenger.
By the way that " micropore labyrinth " type muffler is arranged in automobile air conditioning system air inlet, automobile air conditioning system evaporation fan is inhibited to generate
Noise propagated through return air inlet to car, and then reach the interior noise of reduction, improve the purpose of user experience.
Technical effect of the invention:
By the way that " micropore labyrinth " type muffler is arranged in automobile air conditioning system air inlet, inhibit evaporation fan noise into bus
It propagates, to reach the interior noise 2.5dB of reduction, finally improves product competitiveness.
| Scenario Name | Noise (dB/A) |
| Original scheme | 62.7 |
| After scheme of the invention | 60.2 |
The present invention is provided with " micropore labyrinth type " silencing apparatus at the return air inlet of automobile air conditioning system car side, by it is hollow, wear
Hole partition is staggeredly constituted, and diaphragm internal hollow region passes through filled with sound-absorbing material (super glass wool) when sound passes through
Multiple reflections, absorption, and then reach and sound is inhibited to propagate into bus, to achieve the purpose that lower noise.
Automobile air conditioning system is mainly by evaporator 7, centrifugal blower 8, compressor 9, controller 10, axial flow blower 11, condenser 12
It is formed etc. several parts, sees Fig. 1, Fig. 2.When automobile air conditioning system is run, interior sidewind is under the action of centrifugal blower 8, by air inlet 6
(or return air inlet) is flowed through to export after evaporator 7 exchanges heat through centrifugal blower 8 and be flowed into car body, and then reaches interior refrigerating/heating
Effect, see Fig. 3.One side automobile air conditioning system evaporation collateral resistance is larger, and evaporation fan running speed is higher, and then the noise generated
Higher, another aspect automobile air conditioning system evaporation fan downstream is longer, and air outlet is more in bus, and outlet air relatively disperses, therefore noise
The noise radiated by air outlet is weaker, and stronger along the noise that inverted draft direction is radiated by air inlet, thus
Lead to the experience of user in the car are as follows: the level of noise highest in bus near the return air inlet of automobile air conditioning system car side.
The present invention program is shown in Fig. 4, increases at return air inlet to inhibit evaporation fan noise to be propagated from return air inlet to car
" micropore labyrinth type " silencing apparatus.The silencing means is made of multiple channels, and Fig. 7 is seen in each channel, by riser 2, transverse slat 3
Composition, wherein riser, transverse slat are hollow structure and are filled with sound-absorbing material 5, preferably super glass wool.In addition to this riser,
Transverse slat surface is provided with the micropore of different pore size, different number, and pore diameter range D is 0.5mm~1.5mm, and micropore percent opening φ is
10%, (φ is (gross area in hole)/(riser/transverse slat surface area) × 100), micropore is in transverse slat respectively, two tables of vertical version
Interlaced arrangement between face.The angle theta of riser and transverse slat is 90 °.In each channel, transverse slat is in interlaced arrangement in the direction z, in view of big
Bar air-conditioning evaporation fan is arranged symmetrically in the direction z, all channels the direction noise elimination structure z center in symmetrical point
Cloth is shown in Fig. 5, to reach preferable noise elimination effect.Using the height h of noise elimination structure as reference, the value of horizontal plnk thickness h2 is
0.077h, single channel y direction width value are W/6, and W is silencing means effective width, see Fig. 5, transverse slat width m1 value is
0.577h, m1=m/2, transverse slat spacing L value are 0.461h, see Fig. 6.
The noise that evaporation fan generates, can be between transverse slat and riser when by each channel of scheme of the invention silencing means
Multiple reflections are carried out, Fig. 8 is seen, due to hollow and surface microporous structure, while cooperating sound-absorbing material super glass wool, and then constantly
Absorption sound energy, is finally reached the effect of noise reduction 2.5dB/A.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (15)
1. a kind of silencing means of air-conditioning, it is characterised in that:
It can be set at the air inlet and/or air outlet of the air-conditioning, and the silencing means (1) includes multiple partitions, it is more
A baffle interval and formed many places bending bending type channel so that noise enter the bending type channel in can occur repeatedly
Reflection and absorption.
2. the silencing means of air-conditioning according to claim 1, it is characterised in that:
Multiple partitions include spaced at least two riser (2) and at least two transverse slats (3), the riser (2)
Including two adjacent starting staves (21) and the second riser (22), the transverse slat (3) is included on the starting stave (21)
The first transverse slat (31) of setting is protruded and on second riser (22) towards described first towards the direction of the second riser (22)
The second transverse slat (32) of the direction protrusion setting of riser (21), and first transverse slat (31) and second transverse slat (32) are staggered
Setting.
3. the silencing means of air-conditioning according to claim 2, it is characterised in that:
The starting stave (21) and second riser (22) are arranged in parallel, and first transverse slat (31) is two or more,
Second transverse slat (32) be two or more, and the extending direction of the starting stave (21) or second riser (22),
It is successively arranged alternately between more than two first transverse slats (31) and more than two second transverse slats (32).
4. the silencing means of air-conditioning according to claim 2, it is characterised in that:
Sandwiched θ angle between first transverse slat (31) and the starting stave (21), and/or, second transverse slat (32) with
Also sandwiched θ angle between second riser (22), and the θ is located in (60 °, 120 °) range；And/or first cross
Plate (31) is arranged in parallel with second transverse slat (32).
5. the silencing means of air-conditioning according to claim 4, it is characterised in that:
θ=90 °, so that first transverse slat (31) and the starting stave (21) vertical connection, second transverse slat
(32) with the second riser (22) vertical connection.
6. the silencing means of air-conditioning according to claim 2, it is characterised in that:
The equal length of first transverse slat (31) and second transverse slat (32) and be m1, and the starting stave (21)
The spacing distance m between second riser (22), and the value range for having m1 is (0.4m, 0.6m) or 2m1 >=m.
7. the silencing means of air-conditioning according to claim 2, it is characterised in that:
The equal length of the starting stave (21) and second riser (22) and be h, and first transverse slat (31) and
The thickness of second transverse slat (32) is equal and is h2, and the value range of h2 is (0.0615h, 0.1231h).
8. the silencing means of air-conditioning according to claim 2, it is characterised in that:
It is W, and two neighboring riser in the spacing in multiple risers (2), between two risers (2) of spaced furthest
(2) spacing between is equal, and the spacing between two neighboring riser (2) is W/6.
9. the silencing means of air-conditioning according to claim 2, it is characterised in that:
The equal length of the starting stave (21) and second riser (22) and be h, two neighboring first transverse slat
(31) spacing between spacing and two neighboring second transverse slat (32) between is equal and is L, and has the value of L
Range is (0.4h, 0.6h).
10. the silencing means of the air-conditioning according to any one of claim 2-9, it is characterised in that:
The riser (2) and/or the transverse slat (3) they are the structure of inner hollow, and/or, the riser (2) and/or the cross
Multiple holes (4) are provided on the surface of plate (3).
11. the silencing means of air-conditioning according to claim 10, it is characterised in that:
The pore diameter range D in the hole is 0.5mm~1.5mm, and the percent opening φ in the hole is 10%.
12. the silencing means of air-conditioning according to claim 10, it is characterised in that:
It is also filled up in the structure of the inner hollow of the riser (2) and/or the transverse slat (3) and is provided with sound-absorbing material (5).
13. the silencing means of air-conditioning described in any one of -12 according to claim 1, it is characterised in that:
The silencing means (1) is axially symmetric structure, and the air inlet of air-conditioning is arranged in the silencing means (1), described
Air inlet also has air inlet central symmetry axes, the air-conditioning also relative to the air inlet central symmetry axes at axial symmetry knot
Structure, and the central symmetry axes coincide with the air inlet central symmetry axes.
14. a kind of air conditioner, it is characterised in that: there is air inlet and air outlet, further include any one of claim 1-13 institute
The silencing means (1) for the air-conditioning stated, the silencing means (1) are set to the position of the air inlet (6) and/or the air outlet
Place.
15. air conditioner according to claim 14, it is characterised in that: the air conditioner is automobile air conditioning system, the noise reduction dress
It sets (1) and is set to the air inlet (6) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133037.6A CN109186069A (en) | 2018-09-27 | 2018-09-27 | Silencing device and air conditioner of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133037.6A CN109186069A (en) | 2018-09-27 | 2018-09-27 | Silencing device and air conditioner of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109186069A true CN109186069A (en) | 2019-01-11 |
Family
ID=64906438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811133037.6A Pending CN109186069A (en) | 2018-09-27 | 2018-09-27 | Silencing device and air conditioner of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109186069A (en) |
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