CN101800925A - Loudspeaker with diffuse reflection wallboards of box body - Google Patents
Loudspeaker with diffuse reflection wallboards of box body Download PDFInfo
- Publication number
- CN101800925A CN101800925A CN 201010128780 CN201010128780A CN101800925A CN 101800925 A CN101800925 A CN 101800925A CN 201010128780 CN201010128780 CN 201010128780 CN 201010128780 A CN201010128780 A CN 201010128780A CN 101800925 A CN101800925 A CN 101800925A
- Authority
- CN
- China
- Prior art keywords
- loudspeaker
- diffuse reflection
- casing
- box body
- wallboards
- 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.)
- Pending
Links
Images
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a loudspeaker with diffuse reflection wallboards of a box body, belonging to the technical field of loudspeakers. The invention has the technical scheme that the loudspeaker comprises a box body, wherein a horn is installed at the front part of the box body, and the external surface of the box body is a tooth form surface with the diffuse reflection effect. The loudspeaker of the invention can automatically eliminate stationary waves generated inside and outside the box body, has the advantage of good integral tone quality, and is used for broadcasting.
Description
Technical field
The present invention relates to a kind of loud speaker, more particularly, it relates to a kind of loudspeaker with diffuse reflection wallboards of box body.
Background technology
The part that loud speaker is important---baffle one loudspeaker box structure plays supporting, stablize phonation unit and stop, be interrupted the effect of sound wave short distance loop, and the importance of the influence of whole tone color is also generally acknowledged.But most sound boxes are designed to the equal smooth surface of inside and outside wall, densification, inside and outside like this wall all easily parallel or near the another side wallboard of parallel placement or body of wall, cabinet surface environment under produce stronger repeatedly reflection, refraction effect, thereby cause that sound is muddy and cause the notes wave effect, be that sound wave superposes at some frequency range generation energy, multiplication, cause tonequality to be badly damaged.After recognizing this situation; the designer can carry out corresponding improvement to environmental condition usually; but owing to usually ignored casing itself; as adjustment, the improvement that should carry out the casing smooth outer wall; especially the surface treatment of having ignored the reply box house and be inwall improves; it is also not obvious to make other improvement measure produce effects, and annotates the ripple phenomenon and still takes place often unavoidably, causes the raising of overall sound quality limited.Increase the interior sound-absorbing material of more casees to improve the air damping characteristic and to increase modes such as pasting corium, leather or soft wooden skin though also there are extremely indivedual improvement design to adopt in outside wall surface, or with about in addition front and back, corresponding wallboard is designed to nonparallel form up and down, the problem of these schemes is technical sophistications, design, processing, materials are with high costs, produce effects also not see significantly and promote.Especially fail to recognize that reply wall body structure carries out breakthrough improvement and makes its sound wave diffusion property that can produce excellence and controlled acoustical absorbance properties, the characteristic of streaming of reduction ambient air avoid the problems referred to above, also can promote tonequality simultaneously dexterously and build more natural sound field, and also can reduce conditional request greatly external environment condition.
Summary of the invention
The technical problem to be solved in the present invention is at the deficiencies in the prior art, and a kind of generation of casing standing wave, loudspeaker with diffuse reflection wallboards of box body of whole good tone color eliminated is provided.
Technical scheme of the present invention is such: a kind of loudspeaker with diffuse reflection wallboards of box body, comprise casing, and in the casing front portion loudspeaker are housed, wherein said box outer surface is the toothed surfaces with diffuse reflection effect.
In above-mentioned a kind of loudspeaker with diffuse reflection wallboards of box body, described interior is the toothed surfaces with diffuse reflection effect.
In above-mentioned a kind of loudspeaker with diffuse reflection wallboards of box body, described toothed surfaces is to be that leg-of-mutton toothed surface connects and composes successively by a plurality of monodentate cross sectional shapes, and the cross sectional shape size of a plurality of monodentates and position, length limit are basic identical; Bottom, the described triangle monodentate cross section length of side is 40mm～80mm, and drift angle 110 degree, the angle α of base and minor face are that the angle β on 50 degree, base and long limit is 20 degree.
In a kind of loudspeaker with diffuse reflection wallboards of box body of the above, described box outer surface is distributed with sound-absorption hole.
In above-mentioned a kind of loudspeaker with diffuse reflection wallboards of box body, described box outer surface and inner surface are distributed with sound-absorption hole.
In above-mentioned a kind of loudspeaker with diffuse reflection wallboards of box body, described sound-absorption hole diameter is 1mm～4mm, and the sound-absorption hole degree of depth is 1mm～4mm, and the axle center spacing distance between the sound-absorption hole is 20mm～50mm.
In above-mentioned a kind of loudspeaker with diffuse reflection wallboards of box body, triangle minor face on the described wall box is baffle direction before the casing all, loudspeaker axis two triangle edge minor faces are respectively towards the axis direction on the preceding baffle of casing, triangle minor face on the roof box is baffle direction forward all, and the triangle minor face on both sides, casing rear wall axis is respectively towards the sidewall direction on casing both sides.
In above-mentioned a kind of loudspeaker with diffuse reflection wallboards of box body, the corresponding points on the same monodentate surface of described toothed surfaces on the different cross section constitute a curve.
After the present invention adopts said structure, compared with prior art, have following advantage:
(1) the diffuse reflection diffusion structure of tank surface of the present invention can make sound wave produce diffuse reflection or scattering, thereby eliminate the generation of standing wave, and can improve the strength and stiffness of speaker system casing, prevents that casing from producing noise and influence tonequality because of having produced resonance.
(2) the diffuse reflection diffusion structure of tank surface of the present invention can be intervened sound wave and streamed, and makes to stream naturalization, solve uncontrollable diffusion problem, makes the sound wave diffusion controlled, can improve the integral body of acoustic surrounding like this and listen sound quality.
(3) the diffuse reflection diffusion structure of tank surface of the present invention can directly be eliminated secondary and the reflection of three infrasounds; The sound-absorption hole battle array of tank surface of the present invention, can be according to different sounding vibrating diaphragm specifications and the sound-absorption hole of corresponding configuration different densities, different arrangement mode and different size specifications, so that the sound-absorption coefficient of wallboard or preceding baffle can adjust as required, can be improve tonequality lower cost is provided and save time, the scheme in space.
(4) cabinet wall diffuse reflection diffusion structure of the present invention, it will be more obvious making absorption audio frequency energy effect, and the acting in conjunction effect that cooperates with acoustical cotton can be better.
Description of drawings
Below in conjunction with the specific embodiment in the accompanying drawing the present invention is described in further detail, but does not constitute any limitation of the invention.
Fig. 1 is the structural representation of a kind of specific embodiment of the present invention;
Fig. 2 is a casing cross section structure schematic diagram of the present invention;
Fig. 3 is that the A of Fig. 2 is to local enlarged diagram.
Embodiment
Consult Fig. 1 to shown in Figure 3, a kind of loudspeaker with diffuse reflection wallboards of box body of the present invention, comprise casing 1, (preceding baffle) is equipped with three loudspeaker 2 in casing 1 front portion, casing 1 outer surface of the present invention is the toothed surfaces with diffuse reflection effect, and the inner surface of casing 1 can be with the absorption audio frequency energy-structure of acoustical cotton assembled highly-effective also for to have the toothed surfaces of diffuse reflection effect, prevent noise, improve the tone color quality.Toothed surfaces in the present embodiment is to be that leg-of-mutton toothed surface connects and composes successively by a plurality of monodentate cross sectional shapes, and the cross sectional shape size of a plurality of monodentates and position, length limit are basic identical; Bottom, the triangle monodentate cross section length of side in the present embodiment is decided on casing 1 and loudspeaker 2 specifications, and size is between 40mm～80mm, and drift angle 110 degree, the angle α of base and minor face are that the angle β on 50 degree, base and long limit is 20 degree.The present invention also is distributed with sound-absorption hole 3 at casing 1 outer surface and inner surface, and the square formation that sound-absorption hole 3 constitutes baffle and sidewall, rear wall before casing 1 are vertical square formation array, are horizontal square formation array at casing 1 top board; Decide on the specification of casing 1 and loudspeaker 2 in sound-absorption hole 3 wheelbase and aperture each other, sound-absorption hole 3 apertures are adopted 4mm, 2mm, 1mm usually, corresponding hole depth is respectively 4mm, 2mm, 1.5mm～2mm, and corresponding sound-absorption hole 3 wheelbase each other is respectively 50mm, 40mm, 25mm, 20mm.In the production of reality, loudspeaker 2 specifications of installing as casing 1 are in 12 inches to 8 inches scopes, and it is that 50mm * 50mm hole wheelbase square formation stack aperture of 4mm is 25mm * 25mm hole wheelbase square formation of 2mm that the hole battle array adopts the aperture.And loudspeaker 2 specifications that casing 1 is installed are below 6 inches the time, and it is that 40mm * 40mm hole wheelbase square formation stack aperture of 2mm is 20mm * 20mm hole wheelbase square formation of 1mm that the hole battle array adopts the aperture; Such effect is relatively good.Triangle minor face on casing 1 sidewall of the present invention is all towards casing 1 preceding baffle direction, loudspeaker 2 axis two triangle edge minor faces are respectively towards the axis direction on the casing 1 preceding baffle, triangle minor face on casing 1 top board is baffle direction forward all, and the triangle minor face on both sides, casing 1 rear wall axis is respectively towards the sidewall direction on casing 1 both sides.Corresponding points on the same monodentate surface of the toothed surfaces in the present embodiment on the different cross section constitute a curve, so just more high efficiency, more equably the sound wave that is communicated to this panel surfaces is carried out diffuse reflection, can certainly be straight line; Each acute angle on the toothed surfaces inside and outside the casing 1 of the present invention is good with chamfering all, and the radius of chamfering is good with 1～5mm.
Claims (8)
1. a loudspeaker with diffuse reflection wallboards of box body comprises casing (1), in casing (1) front portion loudspeaker (2) is housed, and it is characterized in that, described casing (1) outer surface is the toothed surfaces with diffuse reflection effect.
2. a kind of loudspeaker with diffuse reflection wallboards of box body according to claim 1 is characterized in that, described casing (1) inner surface is the toothed surfaces with diffuse reflection effect.
3. a kind of loudspeaker with diffuse reflection wallboards of box body according to claim 1 and 2, it is characterized in that, described toothed surfaces is to be that leg-of-mutton toothed surface connects and composes successively by a plurality of monodentate cross sectional shapes, and the cross sectional shape size of a plurality of monodentates and position, length limit are basic identical; Bottom, the described triangle monodentate cross section length of side is 40mm～80mm, and drift angle 110 degree, the angle α of base and minor face are that the angle β on 50 degree, base and long limit is 20 degree.
4. a kind of loudspeaker with diffuse reflection wallboards of box body according to claim 1 is characterized in that, described casing (1) outer surface is distributed with sound-absorption hole (3).
5. a kind of loudspeaker with diffuse reflection wallboards of box body according to claim 2 is characterized in that, described casing (1) outer surface and inner surface are distributed with sound-absorption hole (3).
6. according to claim 4 or 5 described a kind of loudspeaker with diffuse reflection wallboards of box body, it is characterized in that described sound-absorption hole (3) diameter is 1mm～4mm, sound-absorption hole (3) degree of depth is 1mm～4mm, and the axle center spacing distance between the sound-absorption hole (3) is 20mm～50mm.
7. a kind of loudspeaker with diffuse reflection wallboards of box body according to claim 3, it is characterized in that, triangle minor face on described casing (1) sidewall is all towards the preceding baffle direction of casing (1), loudspeaker (2) axis two triangle edge minor faces are respectively towards the axis direction on the preceding baffle of casing (1), triangle minor face on casing (1) top board is baffle direction forward all, and the triangle minor face on both sides, casing (1) rear wall axis is respectively towards the sidewall direction on casing (1) both sides.
8. a kind of loudspeaker with diffuse reflection wallboards of box body according to claim 3 is characterized in that, the corresponding points on the same monodentate surface of described toothed surfaces on the different cross section constitute a curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010128780 CN101800925A (en) | 2010-03-17 | 2010-03-17 | Loudspeaker with diffuse reflection wallboards of box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010128780 CN101800925A (en) | 2010-03-17 | 2010-03-17 | Loudspeaker with diffuse reflection wallboards of box body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101800925A true CN101800925A (en) | 2010-08-11 |
Family
ID=42596371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010128780 Pending CN101800925A (en) | 2010-03-17 | 2010-03-17 | Loudspeaker with diffuse reflection wallboards of box body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101800925A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826172A (en) * | 2014-01-30 | 2014-05-28 | 东莞凤合凰电声科技有限公司 | Acoustic space shaping sound box |
| GB2561339A (en) * | 2017-03-27 | 2018-10-17 | B & W Group Ltd | Loudspeaker enclosure |
| CN112700760A (en) * | 2020-12-23 | 2021-04-23 | 新沂市承翔电子有限公司 | Noise-reduction strong-sound electronic buzzer and control system and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309022Y (en) * | 1997-07-11 | 1999-02-24 | 珠海经济特区美声电业有限公司 | Loudspeaker box eliminating resonance and standing wave |
| CN2620956Y (en) * | 2003-04-22 | 2004-06-16 | 夏宗庚 | Microporous wall integrated loudspeaker box |
| CN201290170Y (en) * | 2008-08-22 | 2009-08-12 | 蓝秋玲 | Elastic soft loudspeaker box system |
-
2010
- 2010-03-17 CN CN 201010128780 patent/CN101800925A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2309022Y (en) * | 1997-07-11 | 1999-02-24 | 珠海经济特区美声电业有限公司 | Loudspeaker box eliminating resonance and standing wave |
| CN2620956Y (en) * | 2003-04-22 | 2004-06-16 | 夏宗庚 | Microporous wall integrated loudspeaker box |
| CN201290170Y (en) * | 2008-08-22 | 2009-08-12 | 蓝秋玲 | Elastic soft loudspeaker box system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826172A (en) * | 2014-01-30 | 2014-05-28 | 东莞凤合凰电声科技有限公司 | Acoustic space shaping sound box |
| CN103826172B (en) * | 2014-01-30 | 2019-07-16 | 东莞凤合凰电声科技有限公司 | A kind of acoustic space appearance speaker |
| GB2561339A (en) * | 2017-03-27 | 2018-10-17 | B & W Group Ltd | Loudspeaker enclosure |
| GB2561339B (en) * | 2017-03-27 | 2022-02-09 | B & W Group Ltd | Loudspeaker enclosure |
| CN112700760A (en) * | 2020-12-23 | 2021-04-23 | 新沂市承翔电子有限公司 | Noise-reduction strong-sound electronic buzzer and control system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105848041A (en) | Matched film-group voice box and television with same built in | |
| CN204180257U (en) | A kind of phase inverted cabinet | |
| CN205195944U (en) | Inverted tube and phase inverted cabinet | |
| CN101800925A (en) | Loudspeaker with diffuse reflection wallboards of box body | |
| CN101610438A (en) | Portable audio playback device | |
| CN104320601A (en) | Flat television | |
| CN204442638U (en) | The television set of closed multi-cavity bass box and this bass box built-in | |
| CN2882175Y (en) | Multi-audio loudspeaker for wire array | |
| CN201995113U (en) | Coaxial loudspeaker provided with double horns and waveguide tube | |
| CN104363541A (en) | Inverse-phase type voice box | |
| CN205336515U (en) | Integral type audio amplifier | |
| CN101707731B (en) | Array transmission line active vehicle-mounted sound system | |
| CN202406249U (en) | Loudspeaker mounting structure for thin speaker box | |
| CN202435591U (en) | Integrated sound box | |
| CN205670832U (en) | A kind of equidistant shunting compression linear array bugle | |
| CN201467418U (en) | Loudspeaker box | |
| CN201039342Y (en) | TV sound | |
| CN204069279U (en) | Digital piano with independent audio amplifier and audio amplifier | |
| CN201504307U (en) | Active vehicular sound-box system with array transmission line | |
| CN201436817U (en) | A bass enhancement mode sound box | |
| CN217406695U (en) | Phase reversal tube capable of improving low-frequency tone quality and loudspeaker comprising same | |
| CN201467420U (en) | Sound box structure with extra bass effect | |
| CN202841479U (en) | Corrugated soft inverter tube | |
| CN202696863U (en) | Novel acoustic filter | |
| CN203289620U (en) | Double-speaker earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100811 |