CN211041148U - Variable air volume end device with noise reduction function and air conditioning system - Google Patents
Variable air volume end device with noise reduction function and air conditioning system Download PDFInfo
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- CN211041148U CN211041148U CN201921916599.8U CN201921916599U CN211041148U CN 211041148 U CN211041148 U CN 211041148U CN 201921916599 U CN201921916599 U CN 201921916599U CN 211041148 U CN211041148 U CN 211041148U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 12
- 230000030279 gene silencing Effects 0.000 claims abstract description 31
- 239000011358 absorbing material Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000003584 silencer Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a variable air volume end device and air conditioning system with function of making an uproar is fallen, variable air volume end device, include: the air conditioner comprises a shell, an air inlet, an air outlet and a fan, wherein the shell is provided with the air inlet and the air outlet, and the shell is also internally provided with an air duct communicated with the air inlet and the air outlet; the silencing component is arranged in the air duct, divides the air duct into a first air duct and a second air duct, the first air duct is communicated with the air inlet, the second air duct is communicated with the air outlet, the silencing component is provided with a silencing passage, and the first air duct is communicated with the second air duct through the silencing passage; and the air valve assembly is arranged at the position of the air inlet. The utility model discloses a variable blast volume end device sets up the amortization subassembly and sets up the blast gate subassembly in air intake position department through setting up in the wind channel to reach the purpose of noise reduction.
Description
Technical Field
The utility model relates to an air conditioning technology field, concretely relates to variable blast volume end device and air conditioning system with function of making an uproar falls.
Background
The Variable Air Volume end device is one of the key devices of a Variable Air Volume Air conditioning System (Variable Air Volume System). The air conditioning system adjusts the primary air delivery rate through the end device, tracks load changes and maintains the room temperature. The tail end of the variable air volume of the air conditioner is used as a device which is closest to the user in distance of the air conditioning system, and noise generated during operation of the air conditioner can be directly transmitted to the user, so that the comfort of the user is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a variable air volume end device and air conditioning system with function of making an uproar is fallen has solved the noise that current variable air volume end device produced when moving and can directly transmit the user, the problem of the travelling comfort that greatly reduced user used.
According to an aspect of the utility model, a variable air volume end device is disclosed, include: the air conditioner comprises a shell, an air inlet, an air outlet and a fan, wherein the shell is provided with the air inlet and the air outlet, and the shell is also internally provided with an air duct communicated with the air inlet and the air outlet; the silencing component is arranged in the air duct, divides the air duct into a first air duct and a second air duct, the first air duct is communicated with the air inlet, the second air duct is communicated with the air outlet, the silencing component is provided with a silencing passage, and the first air duct is communicated with the second air duct through the silencing passage; and the air valve assembly is arranged at the position of the air inlet.
Further, the variable air volume end device further comprises: and the wind speed detection device is arranged at the position of the air outlet.
Further, the acoustic assembly includes an impedance compounding acoustic silencer.
Further, the silencing passages are multiple and are arranged at intervals.
Further, the noise reduction assembly is a honeycomb structure, and the honeycomb structure comprises a plurality of honeycomb units, and each honeycomb unit is internally provided with one noise reduction channel.
Furthermore, the inner wall of the silencing channel is provided with an accommodating cavity, a silencing hole communicated with the accommodating cavity is formed in the inner wall surface of the silencing channel, and a sound absorption material is arranged in the accommodating cavity.
Further, the muffler assembly includes: the acoustic panel, the acoustic panel is a plurality of, and is a plurality of the acoustic panel interval sets up, form between the acoustic panel the amortization passageway.
Furthermore, the acoustical panel has and holds the chamber, it is provided with sound absorbing material to hold the intracavity, be provided with on the outer wall of acoustical panel with hold the bloop of chamber intercommunication.
Furthermore, the inner wall and/or the outer wall of the air duct are/is coated with sound insulation materials.
According to a second aspect of the present invention, an air conditioning system is disclosed, comprising the above-mentioned variable air volume end device.
The utility model discloses a variable blast volume end device is through setting up the amortization subassembly in the wind channel and setting up the blast gate subassembly in air intake position department to noise absorption of self when the amortization passageway through the amortization subassembly with the air through the noise and the blast gate subassembly operation that the blast gate subassembly produced, thereby reach the purpose of noise reduction.
Drawings
Fig. 1 is a schematic structural view of an air volume varying end device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a silencing assembly according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
legend: 10. a housing; 11. an air inlet; 12. an air outlet; 13. a first air duct; 14. a second air duct; 20. a noise reduction assembly; 21. a sound deadening passage; 211. a silencing hole; 22. a sound-absorbing panel; 30. an air valve assembly; 40. wind speed detection device.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the contents of the specification.
As shown in fig. 1, the utility model discloses a variable air volume end device, include: the silencer comprises a shell 10, a silencing assembly 20 and an air valve assembly 30, wherein the shell 10 is provided with an air inlet 11 and an air outlet 12, and an air channel communicated with the air inlet 11 and the air outlet 12 is further arranged in the shell 10; the silencing assembly 20 is arranged in the air duct, the silencing assembly 20 divides the air duct into a first air duct 13 and a second air duct 14, the first air duct 13 is communicated with the air inlet 11, the second air duct 14 is communicated with the air outlet 12, the silencing assembly 20 is provided with a silencing passage 21, and the first air duct 13 is communicated with the second air duct 14 through the silencing passage 21; the air valve assembly 30 is installed at the position of the air inlet 11, the air valve assembly 30 is used for controlling the air quantity in the air duct, and the silencing passage 21 is used for eliminating noise generated when the air passes through the air valve assembly 30. The utility model discloses a variable blast volume end device is through setting up amortization subassembly 20 in the wind channel and setting up blast gate subassembly 30 in 11 positions of air intake department to noise that noise elimination passageway 21 through amortization subassembly 20 produced the air through blast gate subassembly 30 and blast gate subassembly 30 operation self is absorbed, thereby reaches the purpose of noise reduction.
In the above-described embodiment, the muffler assembly 20 includes an impedance compounding muffler. The utility model discloses a variable blast volume end device is through setting up the compound nature muffler of impedance in the wind channel, be equivalent to the compound nature amortization passageway of impedance of design between air intake 11 and air outlet 12, self noise when noise and the air valve subassembly 30 operation that can effectual absorption air produced through air valve subassembly 30 to the air passes through amortization passageway 21 back, the flow field evenly spreads, and the noise can not pass through the supply-air outlet and reach outdoor, thereby reaches the purpose of noise reduction.
In the above embodiment, the sound deadening channel 21 is plural, and the plural sound deadening channels 21 are provided at intervals. The utility model discloses a variable blast volume end device sets up a plurality of amortization passageways 21 through the interval, and noise that can self when the amortization passageway 21 through amortization subassembly 20 produced the air through blast gate subassembly 30 and blast gate subassembly 30 operation absorbs to reach noise reduction's purpose.
In the above embodiment, the sound-deadening assembly 20 has a honeycomb structure including a plurality of honeycomb units each having one sound-deadening channel 21 therein. The utility model discloses a variable blast volume end device is through setting up amortization subassembly 20 into honeycomb, and a amortization passageway 21 has in every honeycomb unit, can maximize utilization amortization subassembly 20's inner space, and honeycomb mechanical properties is good, not only can be through amortization passageway 21 with the noise of air through the noise that blast gate subassembly 30 produced and the noise absorption of blast gate subassembly 30 self when moving, thereby reach the purpose of noise reduction, can also reduce the weight of amortization subassembly 20, guarantee the intensity of amortization subassembly 20, when saving the cost, improve the reliability.
Of course, in the above-described embodiment, the cross section of sound deadening channel 21 is hexagonal, and besides, the cross section of sound deadening channel 21 may be polygonal, circular, or the like.
In the above embodiment, the inner wall of the sound deadening channel 21 has the accommodating chamber, the sound deadening hole 211 communicating with the accommodating chamber is provided on the inner wall surface of the sound deadening channel 21, and the sound absorbing material is provided in the accommodating chamber. Preferably, the sound absorbing material envelopes the glass wool. The utility model discloses a variable blast volume end device is because the inner wall of amortization passageway 21 has the chamber of holding, and be provided with glass cotton holding the intracavity, thereby form impedance combined type noise cancelling structure, when sound enters into amortization passageway 21, some sound energy rubs in the cotton hole of glass and is converted into the thermal energy consumption and dispels, meanwhile the resonant cavity that sudden change and the pipeline that passes through amortization passageway cross-section formed makes the change that arouses impedance and produce the reflection of sound energy among the sound propagation process, interfere, thereby reduce the sound energy by the outside radiation of silencer, in order to reach the noise elimination purpose.
In the embodiment shown in FIG. 2, the acoustic abatement assembly 20 comprises: the silencing plate 22 is provided with a plurality of silencing plates 22, the plurality of silencing plates 22 are arranged at intervals, and the silencing passages 21 are formed among the silencing plates 22. The utility model discloses a variable air volume end device is through setting up a plurality of acoustical panel 22, thereby forms between acoustical panel 22 noise absorption of self when silencing passageway 21 passes through noise and the air valve subassembly 30 operation that silencing passageway 21 produced the air through air valve subassembly 30 to reach noise reduction's purpose.
In the above embodiment, the sound-deadening plate 22 has the housing chamber in which the sound-absorbing material is disposed, and the sound-deadening hole 211 communicating with the housing chamber is disposed on the outer wall of the sound-deadening plate 22. Preferably, the sound absorbing material envelopes the glass wool. The utility model discloses a variable blast volume end device is because the acoustical panel 22 has the chamber that holds, and be provided with glass cotton holding the intracavity, thereby form impedance combined type noise cancelling structure, when sound enters into amortization passageway 21, some sound energy rubs in the cotton hole of glass and is converted into the thermal energy consumption and dispels, the resonant cavity that forms through the sudden change of wind channel cross-section and pipeline makes the change that arouses impedance and produce the reflection of sound energy, interfere in the sound propagation process simultaneously, thereby reduce the sound energy by the silencer external radiation, in order to reach the noise elimination purpose.
In the above embodiment, the variable air volume terminal device further includes: and the wind speed detection device 40 is arranged at the position of the air outlet 12. Preferably, the wind speed detecting device 40 includes a pitot tube for measuring the wind speed passing through the wind inlet 11 in real time. The utility model discloses a variable air volume end device and the biggest difference of traditional single wind channel variable air volume end device are that blast gate subassembly 30 sets up at air intake 11, and wind speed detection device 40 is at air outlet 12, and both no longer establish in same wind gap to set up the noise elimination passageway between, can avoid the two to produce serious vortex to the air in same position simultaneously, thereby the noise that greatly reduced air produced when the two.
In the above embodiments, the inner wall and/or the outer wall of the air duct is further coated with a sound insulating material. The utility model discloses a variable blast volume end device has sound insulation material through the cladding still on the inner wall in wind channel and/or outer wall, can further improve the noise reduction effect, the utility model discloses reduce 2dB for traditional variable blast volume end device noise.
According to a second aspect of the present invention, an air conditioning system is disclosed, comprising the above-mentioned variable air volume end device.
It is to be understood that the above-described embodiments of the present invention are merely examples provided for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.
Claims (10)
1. A variable air volume terminal device, comprising:
the air conditioner comprises a shell (10), wherein an air inlet (11) and an air outlet (12) are formed in the shell (10), and an air duct communicated with the air inlet (11) and the air outlet (12) is further formed in the shell (10);
the noise reduction assembly (20) is arranged in the air duct, the noise reduction assembly (20) divides the air duct into a first air duct (13) and a second air duct (14), the first air duct (13) is communicated with the air inlet (11), the second air duct (14) is communicated with the air outlet (12), the noise reduction assembly (20) is provided with a noise reduction channel (21), and the first air duct (13) is communicated with the second air duct (14) through the noise reduction channel (21);
the air valve assembly (30), the air valve assembly (30) is installed at the position of the air inlet (11).
2. The variable air volume terminus device of claim 1 further comprising:
the wind speed detection device (40), wind speed detection device (40) set up in air outlet (12) position department.
3. The variable air volume terminus device of claim 1,
the acoustic attenuation assembly (20) includes an impedance compounding acoustic attenuator.
4. The variable air volume terminus device of claim 1,
the silencing passages (21) are arranged in a plurality, and the silencing passages (21) are arranged at intervals.
5. The variable air volume terminus device of claim 4,
the sound attenuation component (20) is a honeycomb structure which comprises a plurality of honeycomb units, and each honeycomb unit is internally provided with one sound attenuation channel (21).
6. The variable air volume terminus device of claim 4,
the inner wall of amortization passageway (21) has and holds the chamber, be provided with on the internal wall of amortization passageway (21) with hold the amortization hole (211) that the chamber communicates, it is provided with sound absorbing material to hold the intracavity.
7. Variable air volume terminal device according to claim 1, characterized in that the silencing assembly (20) comprises:
the sound-absorbing plates (22) are multiple, the sound-absorbing plates (22) are arranged at intervals, and the sound-absorbing channels (21) are formed among the sound-absorbing plates (22).
8. The variable air volume terminus device of claim 7,
the sound-absorbing plate (22) is provided with an accommodating cavity, a sound-absorbing material is arranged in the accommodating cavity, and a sound-absorbing hole (211) communicated with the accommodating cavity is formed in the outer wall of the sound-absorbing plate (22).
9. The variable air volume terminus device of claim 1,
the inner wall and/or the outer wall of the air duct are/is coated with sound insulation materials.
10. An air conditioning system characterized by comprising the variable air volume terminal device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921916599.8U CN211041148U (en) | 2019-11-07 | 2019-11-07 | Variable air volume end device with noise reduction function and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921916599.8U CN211041148U (en) | 2019-11-07 | 2019-11-07 | Variable air volume end device with noise reduction function and air conditioning system |
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| Publication Number | Publication Date |
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| CN211041148U true CN211041148U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921916599.8U Active CN211041148U (en) | 2019-11-07 | 2019-11-07 | Variable air volume end device with noise reduction function and air conditioning system |
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| CN (1) | CN211041148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822547A (en) * | 2019-11-07 | 2020-02-21 | 珠海格力电器股份有限公司 | Variable air volume end device with noise reduction function and air conditioning system |
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2019
- 2019-11-07 CN CN201921916599.8U patent/CN211041148U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822547A (en) * | 2019-11-07 | 2020-02-21 | 珠海格力电器股份有限公司 | Variable air volume end device with noise reduction function and air conditioning system |
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