CN207348738U - Dog-ear arc top noise elimination blinds - Google Patents
Dog-ear arc top noise elimination blinds Download PDFInfo
- Publication number
- CN207348738U CN207348738U CN201721422961.7U CN201721422961U CN207348738U CN 207348738 U CN207348738 U CN 207348738U CN 201721422961 U CN201721422961 U CN 201721422961U CN 207348738 U CN207348738 U CN 207348738U
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- CN
- China
- Prior art keywords
- dog
- blade
- noise elimination
- arc top
- ear
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of dog-ear arc top noise elimination blinds, including circumferential side frame, dog-ear arc top noise elimination blade, upper special-shaped blade, lower special-shaped blade, stainless steel Air Filter.Dog-ear arc top noise elimination blade is made of upper microperforated panel, lower microperforated panel and two side of left and right for imperforated metallic plate, and upper microperforated panel, lower microperforated panel are the top moulding of dog-ear arc, and sound-absorbing material is not provided with blade, is installed on using locator in frame.The balanced arrangement up and down of dog-ear arc top noise elimination blade, between spacing be thick 2 times of piece.Upper abnormity blade is installed on frame top, including interior dog-ear arc top-type microperforated panel, and outside is imperforated metallic plate.Lower abnormity blade system's dog-ear arc top microperforated panel blade, installed in frame lower part, bottom is imperforated metallic plate.Dog-ear arc top noise elimination blade, upper special-shaped blade, the dog-ear angle of lower special-shaped blade are consistent, within outside it is light tight subject to.Stainless steel Air Filter is installed on the outside of frame.
Description
Technical field
A kind of noise reducing apparatus is the utility model is related to, in particular for the ambient noise between inside and outside air lock, is had logical
The rainproof ventilation noise elimination blinds of wind function.
Background technology
Silencing blind system has the louver that can eliminate the noise again of ventilation function, for the ambient noise between inside and outside air lock, makes
Air is sufficiently circulated, can flat embedded mode be installed among masonry or other building structure, or independent disappear can be done
Sound louver wall.Air port, Yi Jiqi are sent back to suitable for ventilation, computer room return air inlet or pipe end of the air-conditioning system without return air duct
His sound source device（Computer room）Refrigeration machine, cooling tower, diesel engine unit etc., meet its ventilation and heat, daylighting, go along with sb. to guard him will
When seeking common ground, noise is controlled to external radiation.Silencing blind is limited to be subject to using position, and thickness cannot generally exceed building enclosure
Width.
Silencing blind has three the key technical indexes：Eliminate the noise, sound insulation volume dB (A)；Pressure loss Pa（With the close phase of wind speed
Close）；Available ventilation area ratio %, meanwhile, there should be rainproof function by outdoor direction.At present, silencing blind construction is inhaled by chip
Sound material is spaced with tilting, the spacing between chip sound-absorbing material（Referred to as passage）Identical, sound deadening capacity is related with passage,
Channel width is narrower, and sound deadening capacity is bigger.But the presence of visual straight channel, can make part straightline propagation vertically high frequency sound
Ripple forms " acoustic beam " in the interval of passage, and less to be contacted with the sound-absorbing material of conduit wall, sound deadening capacity substantially reduces, this phenomenon claims
Meaning high frequency failure.This structure is poor to the noise elimination effect of low frequency, disappears（Every）Volume is only 10dB (A) left and right, such as by
Reducing the spacing of chip sound-absorbing material increases sound deadening capacity.But available ventilation area thus can be reduced, increase passes through noise elimination leaf
The pressure loss of piece air-flow.In order to increase sound deadening capacity, also can by chip sound-absorbing material formed folded plate type, by chip sound-absorbing material it
Between straight channel side be dog-ear passage.It can increase order of reflection of the sound wave in passage, that is, increase connecing for sound wave and sound-absorbing material
Have a sudden inspiration meeting, improve acoustic attenuation performance.But since the loss of folded plate type moulding pressure is larger, meanwhile, available ventilation area ratio also can
Decline.
The content of the invention
In order to overcome existing silencing blind sound deadening capacity small, available ventilation area ratio is low and the pressure loss is larger not
Foot, the present invention provide a kind of interior dog-ear arc top-type silencing blind, use microperforated panel.The silencing blind not only higher noise elimination
Amount, can prevent high frequency failure, and the pressure loss is smaller, and available ventilation area ratio is higher, have the function of that prevent rainwater from attacking disappears
Sound louver.
The technical solution adopted by the present invention to solve the technical problems is：A kind of rainproof ventilation noise elimination blinds, including surrounding
Frame, dog-ear arc top noise elimination blade, upper special-shaped blade, lower special-shaped blade, Air Filter.Dog-ear arc top noise elimination blade is by upper micropunch
Plate, lower microperforated panel and two side of left and right form for imperforated metallic plate, and upper microperforated panel, lower microperforated panel are made for dog-ear arc top
Type, is not provided with sound-absorbing material in blade, is installed on using locator in frame.
The balanced arrangement up and down of dog-ear arc top noise elimination blade, between spacing be thick 2 times of piece.Upper abnormity blade is installed on side
Frame top, including interior dog-ear arc top-type microperforated panel, outside are imperforated metallic plate.Lower abnormity blade system's dog-ear arc top is micro- to wear
Orifice plate blade, installed in frame lower part, bottom is imperforated metallic plate.Dog-ear arc top noise elimination blade, upper special-shaped blade, under
The dog-ear angle of special-shaped blade is consistent, within outside it is light tight subject to.Air Filter is installed on the outside of frame.
The invention has the advantages that the noise elimination blade of noise elimination blade is divided into each independent inside and outside noise elimination blade,
It is right-angle array between inside and outside noise elimination blade, existing straight-through spacing between noise elimination blade can be eliminated, Conventional parallel piece can be prevented
The high frequency failure of formula silencing blind, sound deadening capacity is big, and air loss is less than folded plate type silencing blind, and available ventilation area ratio is high.
Brief description of the drawings
Utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the side view of the utility model embodiment.
Fig. 2 is that Fig. 1 faces structural map.
1. noise elimination blade in figure, 2. dog-ear arc tops, special-shaped blade on 3., 4. time abnormity blades, 5. Air Filters, 6. frames,
7. microperforated panel, 8. metallic plates.
Embodiment
In Fig. 1,2 illustrated embodiments, a kind of rainproof ventilation noise elimination blinds, including circumferential side frame（6）, dog-ear arc top（2）
Noise elimination blade（1）, upper special-shaped blade（3）, lower special-shaped blade（4）, Air Filter（5）.Dog-ear arc top（2）Noise elimination blade（1）By upper
Microperforated panel（7）, lower microperforated panel（7）And two side of left and right is imperforated metallic plate（8）Composition, upper microperforated panel（7）, under it is micro-
Perforated plate（7）For dog-ear arc top（2）Moulding, is not provided with sound-absorbing material in blade, frame is installed on using locator（6）It is interior.
Dog-ear arc top（2）Noise elimination blade（1）Balanced arrangement up and down, between spacing be thick 2 times of piece.
Upper abnormity blade（3）Installed in frame（6）Top, including interior dog-ear arc top（2）Type microperforated panel（7）, outside is
Imperforated metallic plate（8）.
Lower abnormity blade（4）It is dog-ear arc top（2）Microperforated panel（7）Blade, installed in frame（6）Lower part, bottom be for
Imperforated metallic plate（8）.
Dog-ear arc top（2）Noise elimination blade（1）, upper special-shaped blade（3）, lower special-shaped blade（4）Dog-ear angle it is consistent, within
Subject to outside is light tight.
Air Filter（5）Installed in frame（6）Outside.
It should be appreciated that not departing from the scope of the utility model, a variety of changes can be made to above-described embodiment.It is all
All any modification, equivalent and improvement made within the spirit and principles of the utility model etc., each fall within this
Within the protection domain of utility model.
Claims (6)
1. a kind of rainproof ventilation noise elimination blinds, including circumferential side frame, dog-ear arc top noise elimination blade, upper special-shaped blade, lower heterophyll
Piece, Air Filter, it is characterized in that：Dog-ear arc top noise elimination blade is puncherless by upper microperforated panel, lower microperforated panel and two side of left and right
Metallic plate composition, upper microperforated panel, lower microperforated panel be the top moulding of dog-ear arc, and sound-absorbing material is not provided with blade, using calmly
Position device is installed in frame.
2. rainproof ventilation noise elimination blinds according to claim 1, it is characterized in that：Dog-ear arc top noise elimination blade is balanced up and down to be arranged
Row, between spacing be thick 2 times of piece.
3. rainproof ventilation noise elimination blinds according to claim 1, it is characterized in that：Upper abnormity blade is installed on frame top,
Including interior dog-ear arc top-type microperforated panel, outside is imperforated metallic plate.
4. rainproof ventilation noise elimination blinds according to claim 1, it is characterized in that：The dog-ear arc top micropunch of lower abnormity blade system
Plate leaf piece, installed in frame lower part, bottom is imperforated metallic plate.
5. rainproof ventilation noise elimination blinds according to claim 1, it is characterized in that：Dog-ear arc top noise elimination blade, upper heterophyll
Piece, the dog-ear angle of lower special-shaped blade are consistent, within outside it is light tight subject to.
6. rainproof ventilation noise elimination blinds according to claim 1, it is characterized in that：Air Filter is installed on the outside of frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422961.7U CN207348738U (en) | 2017-10-31 | 2017-10-31 | Dog-ear arc top noise elimination blinds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422961.7U CN207348738U (en) | 2017-10-31 | 2017-10-31 | Dog-ear arc top noise elimination blinds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207348738U true CN207348738U (en) | 2018-05-11 |
Family
ID=62353639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721422961.7U Expired - Fee Related CN207348738U (en) | 2017-10-31 | 2017-10-31 | Dog-ear arc top noise elimination blinds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207348738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025734A (en) * | 2018-08-01 | 2018-12-18 | 正升环境科技股份有限公司 | A kind of ventilative acoustic screen and window assembly |
-
2017
- 2017-10-31 CN CN201721422961.7U patent/CN207348738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025734A (en) * | 2018-08-01 | 2018-12-18 | 正升环境科技股份有限公司 | A kind of ventilative acoustic screen and window assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 Termination date: 20211031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |