CN103266841A - Soundproof door - Google Patents
Soundproof door Download PDFInfo
- Publication number
- CN103266841A CN103266841A CN2013101994927A CN201310199492A CN103266841A CN 103266841 A CN103266841 A CN 103266841A CN 2013101994927 A CN2013101994927 A CN 2013101994927A CN 201310199492 A CN201310199492 A CN 201310199492A CN 103266841 A CN103266841 A CN 103266841A
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- China
- Prior art keywords
- door
- noise elimination
- soundproof
- soundproof door
- soundproofing
- 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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Abstract
The invention provides a soundproof door. The soundproof door comprises a door body. A soundproofing cavity is formed inside the door body, a sound absorption layer is attached to the inner wall of the soundproofing cavity, and a micro-punched plate is attached to the exterior of the soundproofing cavity and connected with the door body. According to the resistive soundproofing and reactive soundproofing principles, under the condition of not changing the appearance structures of the door and a door frame, sound reaching from the gap on the bottom of the door is eliminated effectively, and integral soundproof effect of the door is improved. The soundproof door is simple in structure and low in manufacturing cost.
Description
Technical field
The present invention relates to a kind of soundproof door.
Background technology
Traditional door makes top and the contact both sides of door and doorframe tightr, if threshold is not established in the bottom, generally all can leave certain slit, and these slits are the main causes that cause a sound-insulation capability bad.
Summary of the invention
Technical problem to be solved by this invention is to overcome defective of the prior art, and a kind of soundproof door is provided, and the sound that utilizes reactive muffler and dissipative muffler principle to enter from slit, door bottom is effectively eliminated, thereby improves the whole defening effect of door.
For solving the problems of the technologies described above, the invention provides a kind of soundproof door, comprise a body, be provided with noise elimination cavity in the door body, the inwall of noise elimination cavity is covered with absorbent treatment, and the outside of noise elimination cavity is covered with microperforated panel, and microperforated panel is connected with the door body.
As a further improvement on the present invention, noise elimination cavity is positioned at the bottom of a body.
As a further improvement on the present invention, absorbent treatment is made up of sound absorption material.
As a further improvement on the present invention, the degree of depth of noise elimination cavity is D:D=1/4* N λ, and λ is wave length of sound; N gets odd number.
As a further improvement on the present invention, to be connected with a door body be bonding or bolt connects or the nailing connection to microperforated panel.
As a further improvement on the present invention, the material of microperforated panel can be metal material, PC plate, veneer or cardboard.
The beneficial effect that the present invention reaches: the invention provides a kind of soundproof door, under the situation of the contour structures that does not change door and doorframe, the sound that will enter from slit, door bottom is effectively eliminated, and improves the whole defening effect of door, and is simple in structure, low cost of manufacture.
Description of drawings
Fig. 1 is soundproof door overall structure schematic diagram;
Fig. 2 is soundproof door master sectional view;
Fig. 3 is soundproof door noise elimination structure partial, partially-cross-sectioned side-elevation view.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
As shown in Figure 1, the invention provides a kind of soundproof door, comprise a body 1, be provided with noise elimination cavity 2 in the door body 1, the inwall of noise elimination cavity 2 is covered with absorbent treatment 4, and the outside of noise elimination cavity 2 is covered with microperforated panel 3, and microperforated panel 3 is connected with door body 1; Noise elimination cavity 2 is positioned at the bottom of a body 1; Absorbent treatment 4 is made up of deadener; Noise elimination cavity 2 utilizes resistance resistance sound principle, can cancel out each other when two sound waves of 180 ° meet when the frequency same phase differs.The degree of depth of noise elimination cavity 2 is generally cancelled 1/4 odd-multiple of acoustic frequency corresponding wavelength, if this soundproof door is mainly used in the isolated voice in room, main frequency according to voice is distributed in the 100Hz-1000Hz scope, can get the 500Hz frequency eliminates the noise as frequency of noise elimination, the wavelength of this frequency sound wave is 0.68 meter, and then noise elimination cavity 2 degree of depth are 0.17 meter.At the noise elimination cavity 2 outside microperforated panels 3 that cover, microperforated panel 3 and absorbent treatment 4 utilize the principle of resistance noise reduction, make acoustic energy be converted to heat energy and dissipate, and absorbent treatment 4 can make this sound absorber play the more noise elimination effect of wideband; The thickness of slab of microperforated panel 3 is generally at 0.2-1mm, micropore size on the microperforated panel 3 is generally at 0.5-1mm, perforated percentage is generally 1%-3%, can play good broad band sound absorption effect, and the material of microperforated panel 3 can be metal material, PC plate, veneer or cardboard.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. soundproof door, comprise a body (1), it is characterized in that: be provided with noise elimination cavity (2) in the door body (1), the inwall of described noise elimination cavity (2) is covered with absorbent treatment (4), the outside of described noise elimination cavity (2) is covered with microperforated panel (3), and described microperforated panel (3) is connected with door body (1).
2. a kind of soundproof door according to claim 1, it is characterized in that: described noise elimination cavity (2) is positioned at the bottom of a body (1).
3. a kind of soundproof door according to claim 1, it is characterized in that: described absorbent treatment (4) is made up of sound absorption material.
4. a kind of soundproof door according to claim 1, it is characterized in that: the degree of depth of described noise elimination cavity (2) is D:D=1/4* N λ, and λ is wave length of sound; N gets odd number.
5. a kind of soundproof door according to claim 1 is characterized in that: it is bonding that described microperforated panel (3) is connected with a door body (1) or bolt connects or the nailing connection.
6. a kind of soundproof door according to claim 1, it is characterized in that: the material of described microperforated panel (3) can be metal material, PC plate, veneer or cardboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101994927A CN103266841A (en) | 2013-05-27 | 2013-05-27 | Soundproof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101994927A CN103266841A (en) | 2013-05-27 | 2013-05-27 | Soundproof door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103266841A true CN103266841A (en) | 2013-08-28 |
Family
ID=49010495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101994927A Pending CN103266841A (en) | 2013-05-27 | 2013-05-27 | Soundproof door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103266841A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061465A (en) * | 2000-08-11 | 2002-02-28 | Shimizu Corp | Double window sash and double window structure |
| CN2740747Y (en) * | 2004-10-28 | 2005-11-16 | 黄金杨 | Wooden sound-absorbing door |
| JP2009299454A (en) * | 2008-05-14 | 2009-12-24 | Yoichiro Kuroiwa | Soundproof door |
| CN202300077U (en) * | 2011-11-15 | 2012-07-04 | 江苏东泽环保科技有限公司 | High-temperature-resistant special-type sound-insulation door |
| CN203257285U (en) * | 2013-05-27 | 2013-10-30 | 金陵科技学院 | Soundproof door |
-
2013
- 2013-05-27 CN CN2013101994927A patent/CN103266841A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061465A (en) * | 2000-08-11 | 2002-02-28 | Shimizu Corp | Double window sash and double window structure |
| CN2740747Y (en) * | 2004-10-28 | 2005-11-16 | 黄金杨 | Wooden sound-absorbing door |
| JP2009299454A (en) * | 2008-05-14 | 2009-12-24 | Yoichiro Kuroiwa | Soundproof door |
| CN202300077U (en) * | 2011-11-15 | 2012-07-04 | 江苏东泽环保科技有限公司 | High-temperature-resistant special-type sound-insulation door |
| CN203257285U (en) * | 2013-05-27 | 2013-10-30 | 金陵科技学院 | Soundproof door |
Non-Patent Citations (1)
| Title |
|---|
| 吕玉恒: "《噪声控制与建筑声学设备和材料选用手册》", 30 November 2011 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130828 |