CN109403822B - Ventilation noise reduction shutter - Google Patents
Ventilation noise reduction shutter Download PDFInfo
- Publication number
- CN109403822B CN109403822B CN201811487035.7A CN201811487035A CN109403822B CN 109403822 B CN109403822 B CN 109403822B CN 201811487035 A CN201811487035 A CN 201811487035A CN 109403822 B CN109403822 B CN 109403822B
- Authority
- CN
- China
- Prior art keywords
- louver
- group
- shutter
- blade
- noise
- 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.)
- Active
Links
- 230000009467 reduction Effects 0.000 title claims abstract description 18
- 238000009423 ventilation Methods 0.000 title claims abstract description 15
- 230000008030 elimination Effects 0.000 abstract description 18
- 238000003379 elimination reaction Methods 0.000 abstract description 18
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 6
- 230000030279 gene silencing Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B7/08—Louvre doors, windows or grilles
- E06B7/082—Louvre doors, windows or grilles with rigid or slidable lamellae
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/20—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
- E06B5/205—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise windows therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/14—Measures for draining-off condensed water or water leaking-in frame members for draining off condensation water, throats at the bottom of a sash
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention discloses a ventilation noise reduction shutter, which comprises a frame, wherein a sound absorbing plate is arranged on the inner wall of the frame, a drainage bottom plate is arranged at the bottom of the frame, 3 groups of sound absorbing shutter plates are fixedly arranged in an inner cavity formed by the sound absorbing plate and the drainage bottom plate to form a three-level shutter structure, wherein the included angles between a shutter plate group I, a shutter plate group III and a shutter plate group II are equal and are 80-90 degrees, the included angle between the shutter plate group II and the horizontal plane is 30-60 degrees, and the intervals between the shutter plates of the three groups are 10-60 mm in the horizontal direction; the shutter comprehensively utilizes the 3-level sound barrier reflection noise elimination, the 3-level resistive sound absorption noise elimination and the 2-level expansion chamber resistance noise elimination, has excellent low, medium and high frequency noise elimination and noise reduction capabilities, and can meet the ventilation and noise reduction requirements of a strong noise environment.
Description
Technical Field
The invention relates to a shutter, in particular to a ventilation noise reduction shutter.
Background
Noise is the most common pollution mode in daily life, and the physical and mental health of people is seriously affected by the noise with high intensity.
Traffic noise, commercial activity noise, industrial noise, etc. are major sources of noise affecting people's production, life. These noise sources are substantially at or near the surface.
The silencing shutter structure is mainly used for the outer side of equipment which needs to meet ventilation and noise reduction simultaneously, and noise is reduced in a propagation path. In houses and offices where outdoor environmental noise is strong, in order to avoid the negative influence of high decibel noise on the work and life of personnel, a soundproof shutter with ventilation and noise reduction functions is also required.
CN 202451011U provides a ventilation amortization shutter of improved structure, including the frame body, the frame body inner chamber inlays and is equipped with the tripe piece and form the shutter structure, its characterized in that the tripe piece is the reverse V style of calligraphy body that amortization cotton pressed formed, the tripe piece inlays the card through its two side terminal surfaces in the frame body. The document uses the principle of resistive noise cancellation, which exploits the porosity of the noise damping cotton to reduce the intensity of noise passing through the blind.
CN 105239909a provides a silencing shutter, which comprises blades, wherein each blade consists of a shading blade and a silencing blade, both sides of the shading blade are provided with silencing blades, the shading blade is made of opaque materials, the silencing blade is made of transparent materials, and micropores are arranged on the silencing blade. The blades consist of a shading blade and a silencing blade, both sides of the shading blade are provided with silencing blades, and holes are formed in the silencing blades; the design of the shutter blade adopts the principle of a resistive muffler, and the sound passing through the blade is consumed by utilizing the microperforated panel.
The scheme has certain noise reduction capability, but because the single resistive noise elimination principle is adopted, the scheme has certain noise elimination effect on middle and high frequency noise, and has poor noise elimination effect on low and medium frequency noise, so that the ideal noise reduction effect is difficult to achieve.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art and provide the ventilation noise reduction shutter which is simple in structure, reasonable in design and convenient to use.
In order to achieve the above purpose, the invention adopts the following technical scheme: it comprises a frame; the back of the frame is provided with a heat-insulating sound-insulating plate; the inner wall of the frame is provided with a sound absorbing plate; the bottom of the frame is provided with a drainage bottom plate; a three-level shutter structure is fixedly arranged in a rectangular cavity formed by the sound absorbing plate and the drainage bottom plate; the three-level shutter structure comprises three groups of obliquely arranged shutter blades, namely a shutter blade group I, a shutter blade group II and a shutter blade group III; the first louver blade group is parallel to the three louver blade groups; the second louver blade group is arranged between the first louver blade group and the third louver blade group, and the inclination direction is opposite to the inclination direction of the first louver blade group and the third louver blade group; a first-stage expansion chamber is formed between the first louver group and the second louver group; a second-stage expansion chamber is formed between the second louver group and the third louver group;
Further, the included angle between the second louver group and the horizontal plane is 30-60 degrees;
further, the included angle between the first louver blade group, the third louver blade group and the second louver blade group is 80-90 degrees;
Further, the intervals of the first louver blade group, the second louver blade group and the third louver blade group in the horizontal direction are 10-60 mm;
Further, the vertical spacing of the middle louver blades of the first louver blade group, the second louver blade group and the third louver blade group is the same; the length of the louver blades in the first louver group is more than or equal to 2 times of the vertical spacing of the louver blades in the first louver group, the length of the louver blades in the second louver group is more than or equal to 2.5 times of the vertical spacing of the louver blades in the first louver group, and the length of the louver blades in the third louver group is more than or equal to 1.2 times of the vertical spacing of the louver blades in the third louver group.
Further, the heat-insulating sound-insulating plate is in sealing connection with the frame through a sealing rubber strip.
After the structure is adopted, the invention has the beneficial effects that: the ventilation noise reduction shutter has excellent low, medium and high frequency noise elimination and reduction capabilities, can meet the ventilation and noise reduction requirements of a strong noise environment, and has the advantages of simple structure, reasonable arrangement, low manufacturing cost and the like.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is a schematic structural view of a three-stage shutter structure;
fig. 4 is a perspective view of the present invention.
Reference numerals illustrate:
1. a frame; 2. a sound absorbing panel; 3. a first louver group; 4. a second louver group; 5. a third louver group; 6. a first stage expansion chamber; 7. a second stage expansion chamber; 8. a drainage bottom plate; 9. a heat-insulating sound-insulating plate; 10. and (5) sealing the adhesive tape.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-4, the technical scheme adopted in the specific embodiment is as follows: it comprises a frame 1; the back of the frame 1 is provided with a heat-insulating sound-insulating plate 9; the heat-insulating sound-insulating plate 9 is in sealing connection with the frame 1 through a sealing adhesive tape 10; the inner wall of the frame 1 is provided with a sound absorbing plate 2; the bottom of the frame 1 is provided with a drainage bottom plate 8; a three-level shutter structure is fixedly arranged in a rectangular cavity formed by the sound absorbing plate 2 and the drainage bottom plate 8; the three-level shutter structure comprises three groups of obliquely arranged shutter blades, namely a shutter blade group I3, a shutter blade group II 4 and a shutter blade group III 5; the first louver group 3 and the third louver group 5 are parallel to each other; the second louver group 4 is arranged between the first louver group 3 and the third louver group 5, and the inclination direction is opposite to the inclination direction of the first louver group 3 and the third louver group 5; the included angle beta between the second louver group 4 and the horizontal plane is 30-60 degrees; the included angle alpha between the first louver group 3, the third louver group 5 and the second louver group 4 is 80-90 degrees; the horizontal interval between the first louver group 3 and the second louver group 4 is 10-60 mm, and a first-stage expansion chamber 6 is formed between the first louver group 3 and the second louver group 4; the interval of the second louver group 4 and the third louver group 5 in the horizontal direction is 10-60 mm, and a second-stage expansion chamber 7 is formed between the second louver group 4 and the third louver group 5; the vertical spacing H of the middle louver blades of the first louver blade group 3, the second louver blade group 4 and the third louver blade group 5 is the same; wherein the length of the louver blades in the louver blade group I3 is more than or equal to 2H, the length of the louver blades in the louver blade group II 4 is more than or equal to 2.5H, and the length of the louver blades in the louver blade group III 5 is more than or equal to 1.2H.
In this embodiment, both the sound absorbing plate 2 and the louver are made of a waterproof and corrosion-resistant sound absorbing material, such as foamed aluminum plate.
The first 3 plate surface of the louver group faces the direction of an outdoor main noise source, plays a role of a sound barrier for direct noise, and prevents direct noise with the largest sound intensity from directly entering the louver body; the first louver group 3 forms a first-stage air circulation channel and has the functions of resistive sound absorption and noise elimination; the first-stage expansion chamber 6 is formed by the interval between the first louver group 3 and the second louver group 4, and has a resistance noise elimination function; the included angle between the second louver blade group 4 and the first louver blade group 3 is 80-90 degrees, and the second louver blade group 4 is equivalent to a second-level sound barrier and can reflect most of incident noise back to the first-level noise elimination channel; the second louver group 4 forms a second-stage air circulation channel and has the functions of resisting sound absorption and silencing; the second-stage expansion chamber 7 is formed by the interval between the second louver group 4 and the third louver group 5, and has the resistance and noise elimination functions; the included angle between the third louver group 5 and the second louver group 4 is 80-90 degrees, and the third louver group 5 is equivalent to a third-stage sound barrier, so that most of incident noise can be reflected back to the second-stage noise elimination channel; the third louver group 5 forms a third-stage air circulation channel and has the functions of resistive sound absorption and noise elimination. The sound barrier has good high-frequency silencing performance, the resistive sound absorption has good medium-frequency silencing performance and high-frequency silencing performance, and the expansion chamber resistive silencing has good low-frequency silencing performance and medium-frequency silencing performance. The shutter in the specific embodiment comprehensively utilizes 3-level sound barrier reflection noise elimination, 3-level resistive sound absorption noise elimination and 2-level expansion chamber resistance noise elimination, has excellent low, medium and high frequency noise elimination and reduction capabilities, and can meet the ventilation and noise reduction requirements of a strong noise environment.
The foregoing is only for illustrating the technical scheme of the present invention, and is not intended to limit other modifications and equivalents of the technical scheme of the present invention by those skilled in the art, so long as the modifications and equivalents do not depart from the spirit and scope of the technical scheme of the present invention, and the modifications and equivalents are included in the scope of the claims of the present invention.
Claims (3)
1. A ventilation noise-reducing shutter is characterized in that the shutter comprises a frame; the back of the frame is provided with a heat-insulating sound-insulating plate; the inner wall of the frame is provided with a sound absorbing plate; the bottom of the frame is provided with a drainage bottom plate; a three-level shutter structure is fixedly arranged in a rectangular cavity formed by the sound absorbing plate and the drainage bottom plate; the three-level shutter structure comprises three groups of obliquely arranged shutter blades, namely a shutter blade group I, a shutter blade group II and a shutter blade group III; the first louver blade group is parallel to the three louver blade groups; the second louver blade group is arranged between the first louver blade group and the third louver blade group, and the inclination direction is opposite to the inclination direction of the first louver blade group and the third louver blade group; a first-stage expansion chamber is formed between the first louver group and the second louver group; a second-stage expansion chamber is formed between the first louver group and the third louver group, the intervals of the first louver group, the second louver group and the third louver group in the horizontal direction are 10-60 mm, and the vertical intervals of the louvers in the first louver group, the second louver group and the third louver group are the same; the length of the louver blades in the first louver group is more than or equal to 2 times of the vertical spacing of the louver blades in the first louver group, the length of the louver blades in the second louver group is more than or equal to 2.5 times of the vertical spacing of the louver blades in the first louver group, and the length of the louver blades in the third louver group is more than or equal to 1.2 times of the vertical spacing of the louver blades in the third louver group.
2. A ventilation noise reduction shutter according to claim 1, wherein the angle between the second louver group and the horizontal plane is 30-60 degrees.
3. A ventilation and noise reduction shutter according to claim 1 or 2, wherein the angle between the first, third and second louver groups is 80-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487035.7A CN109403822B (en) | 2018-12-06 | 2018-12-06 | Ventilation noise reduction shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487035.7A CN109403822B (en) | 2018-12-06 | 2018-12-06 | Ventilation noise reduction shutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109403822A CN109403822A (en) | 2019-03-01 |
| CN109403822B true CN109403822B (en) | 2024-06-14 |
Family
ID=65457505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811487035.7A Active CN109403822B (en) | 2018-12-06 | 2018-12-06 | Ventilation noise reduction shutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109403822B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585940A (en) * | 2021-09-16 | 2021-11-02 | 周值辉 | Combined type soundproof window with ventilation function |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209510136U (en) * | 2018-12-06 | 2019-10-18 | 吕林晏 | A kind of ventilation noise reduction shutter |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200467772Y1 (en) * | 2011-05-26 | 2013-07-04 | 주식회사 에이브이티 | Noise reduction louver |
| CN202451013U (en) * | 2011-12-22 | 2012-09-26 | 伟能机电设备(深圳)有限公司 | Ventilating and silencing shutter |
| CN202451011U (en) * | 2011-12-22 | 2012-09-26 | 伟能机电设备(深圳)有限公司 | Ventilating and noise-reducing louver with improved structure |
| KR101257291B1 (en) * | 2012-08-29 | 2013-05-02 | 썬파크 주식회사 | Smart blind system |
| CN203213872U (en) * | 2013-03-22 | 2013-09-25 | 上海华岱环保工程有限公司 | Metal noise-eliminating shutter |
| CN203462967U (en) * | 2013-08-29 | 2014-03-05 | 深圳市沃尔奔达新能源股份有限公司 | Rainproof noise eliminating louver blades and rain-proof and noise eliminating louver for power generation unit |
| CN203856367U (en) * | 2014-04-16 | 2014-10-01 | 上海然贝声学环保工程有限公司 | Damping ventilation louver window |
| CN205475916U (en) * | 2016-04-08 | 2016-08-17 | 中船第九设计研究院工程有限公司 | Folded plate type ventilation noise elimination tripe curtain |
| KR20180042990A (en) * | 2016-10-19 | 2018-04-27 | 예승수 | Sliding louvered shutter |
| CN106677686B (en) * | 2017-03-06 | 2018-07-17 | 上海富成门窗有限公司 | A kind of exterior window with sunshade with decrease of noise functions of divulging information |
-
2018
- 2018-12-06 CN CN201811487035.7A patent/CN109403822B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209510136U (en) * | 2018-12-06 | 2019-10-18 | 吕林晏 | A kind of ventilation noise reduction shutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109403822A (en) | 2019-03-01 |
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