CN106801988A - For the denoising device and air processor of air processor - Google Patents
For the denoising device and air processor of air processor Download PDFInfo
- Publication number
- CN106801988A CN106801988A CN201510836297.XA CN201510836297A CN106801988A CN 106801988 A CN106801988 A CN 106801988A CN 201510836297 A CN201510836297 A CN 201510836297A CN 106801988 A CN106801988 A CN 106801988A
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- China
- Prior art keywords
- hole
- denoising device
- air processor
- container
- cover plate
- 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.)
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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
- F24F2013/247—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)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention relates to a kind of denoising device for air processor, the denoising device includes setting the cover plate in multiple holes and with open container.The cover plate is tightly connected with the container to cover the opening of the container, so that forming resonance noise reduction cavity by the substantially closed chamber that the cover plate and the container are limited.The invention further relates to a kind of air processor with the denoising device.According to the present invention it is possible to significantly reduce the noise of air processor generation.
Description
Technical field
The present invention relates to air processor field, more particularly, to the noise reduction dress of air processor
Put.
Background technology
It is right that the air processor of air-conditioning, air humidifier, air purifier etc. is widely used in
Surrounding air is processed, to improve the quality of room air.Air processor generally all includes using
In the blower fan for driving air flow, while air processor operation is to improve IAQ,
The noise that fan operation and air vibration are produced also can directly be perceived by user, so as to cause user to be tired of
Hot-tempered uneasiness.
For example, mainly including as the fan coil of the end prod of commercial and household central air conditioning system
Blower fan, heat exchanger, filter, water pipe and drip tray etc..Operationally, made by the pressure of blower fan
With constantly the air in circulation room, bypasses air through heat exchanger and be cooled or heat, to keep room
Between temperature it is constant.The noise of fan coil is mainly made up of fan operation and air vibration noise, this
Plant peak value of the noise in certain frequency higher.Fig. 1 is the noise pattern of fan coil, wherein cloudy
Shadow part represents the acoustic pressure with high peaks.If can be effectively controlled to this partial noise,
The noise level of fan coil can then be significantly improved.
Therefore, how to reduce noise is problem demanding prompt solution in air processor.
The content of the invention
Present invention aim to overcome above-mentioned at least one defect of the prior art, propose a kind of
For the denoising device of air processor, this denoising device can significantly increase air-treatment dress
The Noise measarement level put, to reduce the noise of air processor generation.
Therefore, according to an aspect of the present invention, there is provided a kind of denoising device for air processor,
The denoising device includes：
Cover plate, sets multiple holes on the cover plate；And
With open container；
Wherein, the cover plate is tightly connected with the container to cover the opening of the container, from
And the substantially closed chamber limited by the cover plate and the container is formed resonance noise reduction cavity.
Preferably, multiple cut-offs are provided with the container, the resonance noise reduction cavity is separated into
Many sub- cavitys, the part for covering every cover plate of sub- cavity has corresponding hole, so as to different peaks
The noise of value frequency carries out noise reduction.
It is the noise of f preferably for needing by the frequency of noise reduction, the denoising device is designed to full
Sufficient formula：
Wherein, c is the velocity of sound, and V is the volume of the resonance noise reduction cavity, and G is hole conductivity.
Preferably, when the hole is circular port, the hole conductivity meets formula：
Wherein, n is the number in hole, and d is the diameter in hole, l0It is the thickness of cover plate.
Preferably, when the hole is Long Circle hole, the hole conductivity meets formula：
Wherein：N is the number in hole, and a is the length in hole, and b is the width in hole, and h is the depth in hole, le
It is the adjusting for depth amount in hole.
Preferably, the denoising device also includes the sealing being arranged between the cover plate and the container
Bar.
Preferably, the cover plate is made up of or by single plate structure the base plate of the air processor
Into.
Preferably, the container is the water receiving container of the air processor.
Preferably, it is provided with discharge outlet on the container.
Preferably, the hole is flanging bore.
Preferably, the air processor is fan coil, air humidifier or the sky of air-conditioning system
Gas purifier.
According to another aspect of the present invention, there is provided a kind of air processor, it is characterised in that described
Air processor includes denoising device as described above.
According to the present invention, resonance noise reduction is formed by the substantially closed chamber limited by cover plate and container
Cavity, can be effectively reduced peak noise, solve noise in existing air processor running
Excessive problem.
Brief description of the drawings
Describe exemplary embodiment of the invention in detail and this hair is explained further with reference to the accompanying drawings
It is bright, in the accompanying drawings：
Fig. 1 is the noise pattern of conventional fan coil pipe；
Fig. 2 is the denoising device for air processor of exemplary embodiment of the invention
Schematic isometric；
Fig. 3 is the decomposing schematic representation of the denoising device for air processor in Fig. 2；
Fig. 4 is the principle of noise reduction figure of the denoising device for air processor in Fig. 2.
Specific embodiment
The preferred embodiments of the present invention are described in detail with reference to example.In the preferred embodiments of the present invention
In, for present invention is described as a example by the denoising device of fan coil.But, this area skill
Art personnel should be understood that these exemplary embodiments are not meant to form any limitation to the present invention,
For example, denoising device of the invention can serve as other of air humidifier or air purifier etc.
The denoising device of air processor.Additionally, in the case where not conflicting, embodiments of the invention and
Feature in embodiment can be mutually combined.
Fig. 1 is the noise pattern of fan coil, wherein, abscissa represents sound frequency f, ordinate
Represent acoustic pressure NP.From figure 1 it appears that in a certain CF, being such as of about in frequency
In the range of 450-2000Hz, fan coil shows peak sound pressure higher, as shown by the shaded portion,
Reach 35dB or even more high.Noise in these frequency ranges would generally allow people to have the fidgets.Such as
Fruit can reduce these noises, then can significantly improve the noise level of fan coil, better to provide
Good indoor impression.
Fig. 2 is the denoising device for air processor of exemplary embodiment of the invention
Schematic isometric.Fig. 3 is the decomposing schematic representation of the denoising device for air processor in Fig. 2.
As shown in Figures 2 and 3, the noise reduction for air processor of exemplary embodiment of the invention
Device 1 includes the cover plate 3 with multiple holes, sealing strip 5 and with open 6 container 7.Cover plate 3
Can be tightly connected with container 7 to cover open the 6 of container 7, so as to form substantially closed chamber.
Denoising device 1 can be directly installed on the housing bottom of fan coil, for example, passing through bolt or buckle
Connection, is safeguarded in order to as needed disassemble denoising device.Implementation of the invention
Example, cover plate 3 is made up of the Housing Base of fan coil.After denoising device 1 is installed to be positioned, cover plate 3
Positioned at the lower section of fan coiled heat-exchanger, container 7 is formed with cover plate 3 by sealing strip 5 and is tightly connected.
Certainly, container 7 can also be directly connected to cover plate 3, without sealing strip 5.So, it is of the invention
The substantially closed chamber of denoising device 1 is located at fan coil bottom.In the present invention, it is " substantially closed
Chamber " mean the chamber formed by container 7 and cover plate 3 except part where hole on cover plate 3
Outside other parts be substantially closed.
Directly pacify with the denoising device 1 that hermetically connects and formed of the cover plate with hole 3 due to container 7
Mounted in the bottom of fan coil, so, denoising device 1 is also used as the drip tray of fan coil.
The existing open type drip tray dust of fan coil easily falls into wherein, not only influences the discharge of condensed water,
Also the place of bacteria breed can be turned into, indoor environmental hygiene and user health is influenceed.Opened wide with existing
The design of formula drip tray is compared, and the denoising device 1 for forming substantially closed chamber saves installing space,
Take volume smaller.
When fan coil works, the condensed water flow down on heat exchanger fin can be dropped on cover plate 3,
Then container 7 is flowed into.Embodiments in accordance with the present invention, cover plate 3 is provided with multiple holes 9, and condensed water can
Container 7 is flowed into by hole 9, the air-flow in blower fan pipe dish can also be flowed into cover plate 3 and be held by hole 9
In the chamber that device 7 is formed.Hole 9 can set in a row on cover plate 3, it is also possible in different parts
Region sets different numbers.The shape in hole 9 can be circular port, or Long Circle hole, Huo Zheqi
His appropriate shape.Preferably, hole 9 can be flanging bore shape, be on the one hand easy to water to flow down,
On the other hand such hole forms and carries certain thickness air spring, to meet for different noises frequently
The noise-reducing design of rate.
Cover plate 3 is made up of stamped from sheetstock, and its shape is relative with the contour shape of fan coil housing bottom
Answer, such as flat tablet-style, or including the flat inclined side 17 of bottom surface 15, two, or
Also include two lateral edges 19.According to a preferred embodiment of the invention, the He of bottom surface 15 is included in cover plate 3
In the case of side 17, hole 9 can be distributed on a lower surface 15 and/or on side 17.Preferably, exist
The two ends of cover plate 3, are respectively equipped with multiple connecting portions 11, and the connecting portion 11 can have hole, to pass through
Screw is connected with the housing of fan coil.Connecting portion 11 can also be click on fashion, be more convenient for install and
Dismounting.The lateral edges 19 of cover plate 3 can be embedded in the side plate interior sides of fan coil, in order to installing and preventing
Leak-stopping wind.
Container 7 is similar with traditional water receiving groove shape, can be general square shape, Long Circle or other conjunctions
Suitable shape.An embodiment of the invention, container 7 includes bottom 21, both sides 23 and two ends
Portion 25, open top 6.For ease of the water for instilling container 7 is smoothly discharged, the bottom 21 of container 7
It is not level, and is provided with recessed place.So, the water for instilling container 7 can be collected under this first
Recess.Can also be substantially closed chamber for the denoising device 1 for also serving as the drip tray of fan coil
Room sets discharge outlet, for example, the either end or sidepiece in container 7 are provided with discharge outlet 13, discharge outlet
13 are in fluid communication with the minimum point of above-mentioned lower recess, so that condensed water can be completely exhausted out from container 7,
In without accumulating in container 7, it is to avoid container 7 such as occurs going mouldy the phenomenon.The both ends of container 7
25 top edge is corresponding with the end profile of cover plate 3, i.e., with the end profile phase of fan coil base plate
Correspondence, to allow that container 7 is assembled together in consistent manner with the shape of cover plate 3, and in the He of container 7
The substantially closed chamber formed between cover plate 3 constitutes the resonance noise reduction cavity with multiple holes.Container 7
Connection with cover plate 3 can use any connected mode of the prior art.
Additionally, multiple cut-offs can be set on the bottom 21 of container 7, by the inner chamber of container 7 point
It is divided into many sub- cavitys.So, each sub- cavity and identical or different number in many sub- cavitys are made
Hole coordinate, formed multiband resonon cavity, that is, formed can realize being total to different crest frequencies
Shaking carries out multiple denoising structures of noise reduction, such that it is able to more effectively reduce peak noise, improves indoor
Comfort level.For example, be provided with multiple permeable cut-offs on the bottom 21 of container 7, such as vertical plate,
An original whole inner cavity of container 7 is divided into many sub- cavitys, and every big I of sub- cavity
With identical or different, the quantity in the hole on corresponding cover plate 3 can also be identical or different.
Embodiments in accordance with the present invention, denoising device 1 may also include sealing strip 5, the sealing strip and cover plate
3 peripheral shape matches, to cause that sealing strip 5 exists when cover plate 3 and container 7 are installed together
Good sealing is provided between cover plate 3 and container 7.Sealing strip 5 can be U-shaped sealing strip, also may be used
Being the sealing strip with groove of other shapes.The material of sealing strip 5 can be rubber, or
Silica gel, PVC, sponge sealing strip etc..Sealing strip 5 can be realized good between cover plate 3 and container 7
Sealing, prevent gas leakage and leakage from making an uproar, and when fan coil works for denoising device provides certain subtracting
Shake effect.
4 describe the work feelings of the denoising device for fan coil of the invention in detail with reference to the accompanying drawings
Condition.
From fig. 4, it can be seen that after denoising device 1 is installed to the bottom of fan coil 15, wind
The air channel of machine coil pipe is communicated with by cover plate 3 by hole 9 with the substantially closed chamber that container 7 is formed,
Denoising device 1 is set to form single or multiple resonance noise reduction cavitys with holes.So, the shape of denoising device 1
Into the perforated plate resonance sound-absorbing denoising structure of Helmholz resonance silencer type.Therefore, hole and sky
Chamber constitutes an elastic oscillating system, when the frequency of sound wave and the noise reduction cavity vibrational system that resonates of air-flow
When intrinsic frequency is identical, this vibrational system just resonates, the air column with certain mass in hole
Movement velocity is accelerated, frictional damping increase, and a large amount of acoustic energy are converted into heat energy and consume, so as to reach
Reduce the purpose of noise.
For denoising device of the invention, when the running status in fan coil, noise is from air intake
2 (left sides in Fig. 4) of mouth enter in fan coil, and frequency is reached when at hole 9 for the noise waves of f,
Because local acoustic impedance increases suddenly, reflect most of noise acoustic energy, another part noise by
Heat energy dissipation is converted into the frictional damping of resonant cavity, only sub-fraction noise continues to travel to forward
Air outlet 4 and discharge.This eliminates the noise in a certain frequency range.
When the noise for a certain crest frequency f carries out denoising device design, the body of the noise reduction cavity that resonates
Product V and hole conductivity G meets below equation (1)：
Wherein, c is the velocity of sound.
For the hole for being shaped as circle, conductivity G can determine according to below equation (2)：
Wherein, n is the number in hole, and d is the diameter in hole, l0It is the thickness of cover plate.In addition, pitch-row is best
It is more than 5 times of aperture d.
For the hole or the bar seam that are shaped as Long Circle, conductivity G can determine according to below equation (3)：
Wherein：N is the number in hole, and a is the length in hole, and b is the width in hole, and h is the depth in hole, leIt is hole
Adjusting for depth amount (it is by 1 acquisition of tabling look-up).
The correction factor l of table 1eThe relation of/b and b/B, B/A
Wherein, B is the centre distance (B ＜ 0.5 λ, λ are for the sound wave of resonant frequency f is long) in two neighboring hole, and A is
The depth of cavity.
Understood according to formula (1), for the CF f for needing noise reduction, the body of the noise reduction cavity that resonates
Product V and hole conductivity G is variable.In other words, if resonance noise reduction cavity volume V and
Relation between hole conductivity G meets formula (1) and achieves that noise reduction to CF f.Thus,
Shape for resonance noise reduction cavity and hole there is no particular requirement that.As the volume V of resonance noise reduction cavity
After determining with hole conductivity G, it is possible to design the concrete structure of denoising device.For a certain determination
Resonance noise reduction cavity volume V, can have various resonance noise reduction cavity shape and sizes, for
The hole conductivity G of a certain determination, it is possibility to have various aperture, thickness of slab and perforation number of combinations.Cause
This, for a person skilled in the art, volume V and hole for the resonance noise reduction cavity of determination
Conductivity G, can there is various different designs.In actual design, generally according to live feelings
Condition and steel plate materialses, it is first determined several amounts (such as thickness of slab, aperture and chamber are deep), then calculate it again
Its parameter.
For the denoising device of porous resonance sound-absorbing structure type of the invention, the Kong Jun on usual cover plate
It is even to be distributed and be of the same size, therefore, its resonant frequency can equally be carried out using formula (1)
Calculate.When the size in hole is differed, respective resonant frequency can respectively be calculated using formula (1),
It should be noted that in this case, the volume in formula (1) should use the actual correspondence in each hole
Volume.It is divided into many types of sub- cavity for the cavity in denoising device, can equally uses
Formula (1) calculates resonant frequency, in this case, by volume to different sub- cavitys and with
The accordingly selection of the corresponding hole conductivity of sub- cavity, it is possible to achieve different sub- cavitys is directed to different frequency
Noise carry out noise reduction so that denoising device can carry out noise reduction to the noise of particular frequency range,
Obtain more preferable noise reduction.Understood according to formula (2) and (3), the selection of hole conductivity and hole
The factor such as number, size, the thickness of cover plate it is related.When noise reaches the resonant frequency of denoising device
And when resonating, vibration velocity reaches maximum, the absorption to noise also reaches maximum.
Above in association with specific embodiment to the present invention have been described in detail.Obviously, above description and
The embodiment being shown in the drawings should be construed as it is exemplary, without constituting to limit of the invention
System.For example, in a preferred embodiment for as a example by the denoising device of the fan coil of air-conditioning to this hair
Bright to be described, denoising device also acts as the effect of the drip tray of fan coil, but for being used for
The denoising device of such as air filter machine avoids the need for also acting as the effect of drip tray.In addition, preferred
The cover plate of denoising device is made up of the base plate of the housing of fan coil in embodiment, but for not
For air processor with base plate, the cover plate of denoising device can be made up of single plate.For
For those skilled in the art, can it is carried out without departing from the spirit of the invention it is various
Variations or modifications, these variations or modifications are all without departing from the scope of the present invention.
Claims (12)
1. a kind of denoising device (1) for air processor, the denoising device (1) includes：
Cover plate (3), sets multiple holes (9) on the cover plate (3)：And
Container (7) with open (6)；
Wherein, the cover plate (3) is tightly connected to cover the container (7) with the container (7)
It is described opening (6) so that substantially close with what the container (7) was limited by the cover plate (3)
The chamber for closing forms resonance noise reduction cavity.
2. the denoising device (1) for air processor according to claim 1, its feature
It is to be provided with multiple cut-offs in the container (7), the resonance noise reduction cavity is separated into many
Individual sub- cavity, the part for covering every cover plate of sub- cavity has corresponding hole, so as to different peak values
The noise of frequency carries out noise reduction.
3. the denoising device (1) for air processor according to claim 1 and 2, its
It is characterised by, is the noise of f for needing by the frequency of noise reduction, the denoising device (1) is designed
Into meeting formula：
Wherein, c is the velocity of sound, and V is the volume of the resonance noise reduction cavity, and G is hole conductivity.
4. the denoising device (1) for air processor according to claim 3, its feature
It is that, when the hole (9) are for circular port, the hole conductivity meets formula：
Wherein, n is the number in hole, and d is the diameter in hole, l0It is the thickness of cover plate.
5. the denoising device (1) for air processor according to claim 3, its feature
It is that, when the hole (9) are for Long Circle hole, the hole conductivity meets formula：
Wherein：N is the number in hole, and a is the length in hole, and b is the width in hole, and h is the depth in hole, le
It is the adjusting for depth amount in hole.
6. the denoising device (1) for air processor according to claim 1 and 2, its
It is characterised by, the denoising device (1) also includes being arranged on the cover plate (3) with the container (7)
Between sealing strip (5).
7. the denoising device (1) for air processor according to claim 1 and 2, its
It is characterised by, the cover plate (3) is made up of or by single plate the base plate of the air processor
Constitute.
8. the denoising device (1) for air processor according to claim 1 and 2, its
It is characterised by, the container (7) is the water receiving container of the air processor.
9. the denoising device (1) for air processor according to claim 8, its feature
It is to be provided with discharge outlet on the container (7).
10. the denoising device (1) for air processor according to claim 1 and 2,
Characterized in that, the hole is flanging bore.
11. denoising devices (1) for air processor according to claim 1 and 2,
Characterized in that, the air processor is fan coil, air humidifier or the sky of air-conditioning system
Gas purifier.
12. a kind of air processors, it is characterised in that the air processor is included according to power
Profit requires 1 to 11 any described denoising device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836297.XA CN106801988A (en) | 2015-11-26 | 2015-11-26 | For the denoising device and air processor of air processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836297.XA CN106801988A (en) | 2015-11-26 | 2015-11-26 | For the denoising device and air processor of air processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106801988A true CN106801988A (en) | 2017-06-06 |
Family
ID=58977438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510836297.XA Pending CN106801988A (en) | 2015-11-26 | 2015-11-26 | For the denoising device and air processor of air processor |
Country Status (1)
| Country | Link |
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| CN (1) | CN106801988A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108151283A (en) * | 2017-12-04 | 2018-06-12 | 北京小米移动软件有限公司 | Prepare method, silencing means and the air purifier of silencing means |
| CN112611106A (en) * | 2020-12-31 | 2021-04-06 | 青岛海尔空调电子有限公司 | Noise reduction device, air conditioner and noise reduction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151283A (en) * | 2017-12-04 | 2018-06-12 | 北京小米移动软件有限公司 | Prepare method, silencing means and the air purifier of silencing means |
| US11204185B2 (en) | 2017-12-04 | 2021-12-21 | Beijing Xiaomi Mobile Software Co., Ltd. | Method for producing silencing device, silencing device and air purifier |
| CN112611106A (en) * | 2020-12-31 | 2021-04-06 | 青岛海尔空调电子有限公司 | Noise reduction device, air conditioner and noise reduction method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190115 Address after: Building 1 and 2, No. 960 Fengnian Road, Malu Town, Jiading District, Shanghai, 201801 Applicant after: BOSCH thermal technology (Shanghai) Co., Ltd. Address before: 256404 No. 77 Dongfeng Road, Chenzhuang Town, Hengtai County, Zibo City, Shandong Province Applicant before: BOSCH thermal technology (Shandong) Co., Ltd. |
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Application publication date: 20170606 |