CN103957495A - Loudspeaker structure based on ring shaft phase-reversing tube application - Google Patents
Loudspeaker structure based on ring shaft phase-reversing tube application Download PDFInfo
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- CN103957495A CN103957495A CN201410183164.2A CN201410183164A CN103957495A CN 103957495 A CN103957495 A CN 103957495A CN 201410183164 A CN201410183164 A CN 201410183164A CN 103957495 A CN103957495 A CN 103957495A
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- shaft phase
- loudspeaker
- annulate shaft
- guide tube
- reversing
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Abstract
The invention relates to a loudspeaker structure based on ring shaft phase-reversing tube application. The loudspeaker structure comprises a loudspeaker body structure body which is composed of an outer panel and an inner installation panel, wherein a plurality of ring shaft phase-reversing tubes are arranged between the installation panel and a loudspeaker body structure. A voice coil center serves as the virtual axis, and the two or more phase-reversing tubes are mirrored based on the axis or surround the loudspeaker. High voice, medium voice and low voice are restored by approaching to a point acoustic source. A cylindrical or regular polygon cavity structure is adopted, the problem of loudspeaker body resonance caused by a weak center of a panel is solved, and the purpose of eliminating resonance can be achieved relatively with quite thin materials. Due to the fact that the combination of the phase-reversing tubes and the loudspeaker body is organically utilized, two cylindrical inner cavities which are communicated in a front-and-rear mode and integrated but are not equal in diameter are formed, the bordering length is just set in the middle segments, where standing waves are extremely prone to generation, of the inner cavities, and the formation of the standing waves is effectively damaged. The installation panel of the loudspeaker is in the shape of a chamfered cone frustum, the area of the panel is larger than the loudspeaker, and right ahead reflecting of reflected waves and superimposed interference of diffraction sound waves are evenly and effectively relieved.
Description
Technical field
The present invention relates to audio amplifier designing technique, relate in particular to a kind of loudspeaker box structure based on the application of annulate shaft phase guide tube.
Background technology
At present, in traditional loudspeaker box structure, casing has adopted the rectangular structure of erectting more, loudspeaker unit and phase-reversing tube are all placed in face of casing, and there is certain distance, in the time playing the sound wave of a mixing composition, phonotape and videotape location just must be subjected to destroy, and casing forms rectangular structure by long strip-board shape material, the central point of every block of sheet material is also the weakest, the overall stiffness of casing always exists inhomogeneities, the casing that mode is constructed thus, its outer casing resonance generation sound that is subject to dyes, the more regular generation standing wave in its internal cause inside, these 2 sound that make wish reduction play are had a greatly reduced quality.Cabinet panel area is excessive, and the reflected wave that square structure seamed edge corner angle produce produces stack interference to useful sound wave.
Summary of the invention
The object of the invention is to, for the deficiencies in the prior art, a kind of loudspeaker box structure based on the application of annulate shaft phase guide tube is provided, in conjunction with current Duocone coaxial loudspeaker, take voice coil loudspeaker voice coil center as virtual axle center, phase-reversing tube is above by this axle center mirror image or be looped around loudspeaker edge with two, and structure thus, is that senior middle school's bass is all the reduction with points of proximity sound source.
For effectively addressing the above problem, the technical scheme that the present invention takes is as follows:
Based on a loudspeaker box structure for annulate shaft phase guide tube application, comprise a body structure body, this body is made up of exterior panel and inner installation panel, and between described installation panel and described body structure, is provided with many group annulate shaft phase-reversing tubes.
Especially, described body structure is provided with built-in cavity, and described installation panel is placed in described cavity, and described body structure is the polygonized structure of column structure or rule.
Especially, described panel open outer side edge is provided with chamfering.
Especially, between described installation panel and described body structure, be provided with two groups of annulate shaft phase-reversing tubes, and described annulate shaft phase-reversing tube opening section is rectangular circular arc.
Especially, between described installation panel and described body structure, be provided with annulate shaft phase-reversing tube more than two, and described annulate shaft phase-reversing tube opening section is different regular shape.
Especially, described installation panel is provided with loudspeaker unit, and described annulate shaft phase-reversing tube, taking the voice coil loudspeaker voice coil center of described loudspeaker unit as axle center, is realized mirror image on the corresponding both sides at this loudspeaker unit edge or is looped around loudspeaker unit edge in point modes such as circles.
Especially, described annulate shaft phase guide tube is arranged in the peripheral space of axle center, and described annulate shaft phase guide tube cross section area coverage is not less than 1/8th of whole spatial area.
Beneficial effect of the present invention is as follows:
Loudspeaker box structure based on the application of annulate shaft phase guide tube provided by the invention is in conjunction with current Duocone coaxial loudspeaker, take voice coil loudspeaker voice coil center as virtual axle center, phase-reversing tube is above by this axle center mirror image or be looped around loudspeaker edge with two, structure is thus that senior middle school's bass is all the reduction with points of proximity sound source; In view of acoustic pressure or air pressure, the active force of all directions in spheroidal or circular cylindrical cavity is the most uniform, and consider outward appearance and the processing of casing, adopt at cylindrical or regular polygon cavity body structure, the problem that has solved the casing resonance that sheet material center weakness causes, just can reach weakening object with very thin material relatively; Owing to organically utilizing the combination of phase-reversing tube and casing, form two front and back and communicate, but the one cylindrical cavity of different-diameter, border on that length is also just in time set in that inner chamber standing wave very easily produces interlude, effectively destroy the formation of standing wave; Loud speaker installation panel is chamfering truncated cone, and panel area is slightly larger than loud speaker, has evenly effectively reduced the positive front-reflection of reflected wave, and the stack of diffraction sound wave is interfered.
Below in conjunction with accompanying drawing, the present invention is described in detail.
Brief description of the drawings
Fig. 1 is the loudspeaker box structure cylindrical case front elevation based on the application of annulate shaft phase guide tube disclosed by the invention;
Fig. 2 is the loudspeaker box structure cylindrical case side sectional view based on the application of annulate shaft phase guide tube disclosed by the invention;
Fig. 3 is the loudspeaker box structure regular polygon casing front elevation based on the application of annulate shaft phase guide tube disclosed by the invention;
Fig. 4 is the loudspeaker box structure regular polygon casing side sectional view based on the application of annulate shaft phase guide tube disclosed by the invention.
Wherein:
001 panel, 002 installation panel, 003 annulate shaft phase-reversing tube, 004 chamfering, 005 cavity.
Embodiment
Embodiment:
In the present embodiment, calculate the casing equivalent volume of coupling by loudspeaker unit relevant parameter and relevant special formula, annulate shaft phase-reversing tube 003 latus rectum sectional area and length determine casing size.Casing is selected corresponding manufacturing process by institute's materials are optional.This example is produced with metal working forging type.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, the loudspeaker box structure based on the application of annulate shaft phase guide tube that the present embodiment provides, comprise a body structure body, this body is made up of exterior panel 001 and inner installation panel 002, and between described installation panel 002 and described body structure, is provided with many group annulate shaft phase-reversing tubes 003.
Described body structure is provided with built-in cavity 005, and described installation panel 002 is placed in described cavity 005, and described body structure is the polygonized structure of column structure or rule.Described panel 001 open outer side edge is provided with chamfering 004.Between described installation panel 002 and described body structure, be provided with two groups of annulate shaft phase-reversing tubes 003, and described annulate shaft phase-reversing tube 003 opening section is rectangular circular arc.Between described installation panel 002 and described body structure, be provided with annulate shaft phase-reversing tube 003 more than two, and described annulate shaft phase-reversing tube 003 opening section is different regular shape.Described installation panel 002 is provided with loudspeaker unit, and described annulate shaft phase-reversing tube 003, taking the voice coil loudspeaker voice coil center of described loudspeaker unit as axle center, is realized mirror image on the corresponding both sides at this loudspeaker unit edge or is looped around loudspeaker unit edge in point modes such as circles.Described annulate shaft phase guide tube 003 is arranged in the peripheral space of axle center, and described annulate shaft phase guide tube cross section area coverage is not less than 1/8th of whole spatial area.
Applicant's statement, person of ordinary skill in the field is on the basis of above-described embodiment, by above-described embodiment step, combined with the technical scheme of summary of the invention part, thereby the new method or the structure that produce, also be one of record scope of the present invention, the application, for making specification simple and clear, is no longer enumerated other execution mode of these steps.
The major technique application of this embodiment:
Take voice coil loudspeaker voice coil center as virtual axle center, phase-reversing tube is above by this axle center mirror image or be looped around loudspeaker edge with two, and structure thus, is that senior middle school's bass is all the reduction with points of proximity sound source; In view of acoustic pressure or air pressure are the most uniform at the active force of spheroidal or circular cylindrical cavity 005 interior all directions, and consider outward appearance and the processing of casing, adopt in cylindrical or regular polygon cavity 005 structure, the problem that has solved the casing resonance that sheet material center weakness causes, just can reach weakening object with very thin material relatively; Owing to organically utilizing the combination of phase-reversing tube and casing, form two front and back and communicate, but the one cylindrical cavity of different-diameter, border on that length is also just in time set in that inner chamber standing wave very easily produces interlude, effectively destroy the formation of standing wave; Loud speaker installation panel 002 is chamfering 004 truncated cone, and panel 001 area is slightly larger than loud speaker, has evenly effectively reduced the positive front-reflection of reflected wave, and the stack of diffraction sound wave is interfered.
Concrete technology application is as follows:
1: the phase-reversing tube mode of annulate shaft solves point sound source.
2: two cylindrical cavities that vary in size solve casing resonance and standing wave.
3: panel 001 chamfering 004 of small size makes the sweepback of seamed edge corner angle, has reduced the positive front-reflection of reflected wave, and the stack of diffraction sound wave is interfered.
The present invention illustrates implementation method of the present invention and apparatus structure by above-described embodiment, but the present invention is not limited to above-mentioned execution mode, does not mean that the present invention must rely on said method and structure could be implemented.Person of ordinary skill in the field should understand, any improvement in the present invention, to the selected implementation method of the present invention equivalence replace and and interpolation, the selection of concrete mode etc. of step, within all dropping on protection scope of the present invention and open scope.
The present invention is not limited to above-mentioned execution mode, and all employings and analog structure of the present invention and method thereof realize all modes of the object of the invention, all within protection scope of the present invention.
Claims (7)
1. the loudspeaker box structure based on the application of annulate shaft phase guide tube, is characterized in that, comprise a body structure body, this body is made up of exterior panel and inner installation panel, and between described installation panel and described body structure, is provided with many group annulate shaft phase-reversing tubes.
2. the loudspeaker box structure based on the application of annulate shaft phase guide tube according to claim 1, is characterized in that, described body structure is provided with built-in cavity, and described installation panel is placed in described cavity, and described body structure is the polygonized structure of column structure or rule.
3. the loudspeaker box structure based on the application of annulate shaft phase guide tube according to claim 1, is characterized in that, described panel open outer side edge is provided with chamfering.
4. the loudspeaker box structure based on the application of annulate shaft phase guide tube according to claim 1, is characterized in that, be provided with two groups of annulate shaft phase-reversing tubes, and described annulate shaft phase-reversing tube opening section is rectangular circular arc between described installation panel and described body structure.
5. the loudspeaker box structure based on the application of annulate shaft phase guide tube according to claim 1, is characterized in that, be provided with annulate shaft phase-reversing tube more than two, and described annulate shaft phase-reversing tube opening section is different regular shape between described installation panel and described body structure.
6. the loudspeaker box structure based on the application of annulate shaft phase guide tube according to claim 1, it is characterized in that, described installation panel is provided with loudspeaker unit, described annulate shaft phase-reversing tube, taking the voice coil loudspeaker voice coil center of described loudspeaker unit as axle center, is realized mirror image on the corresponding both sides at this loudspeaker unit edge or is looped around loudspeaker unit edge in point modes such as circles.
7. the loudspeaker box structure based on the application of annulate shaft phase guide tube according to claim 1, is characterized in that, described annulate shaft phase guide tube is arranged in the peripheral space of axle center, and described annulate shaft phase guide tube cross section area coverage is not less than 1/8th of whole spatial area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410183164.2A CN103957495A (en) | 2014-04-30 | 2014-04-30 | Loudspeaker structure based on ring shaft phase-reversing tube application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410183164.2A CN103957495A (en) | 2014-04-30 | 2014-04-30 | Loudspeaker structure based on ring shaft phase-reversing tube application |
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| CN103957495A true CN103957495A (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410183164.2A Pending CN103957495A (en) | 2014-04-30 | 2014-04-30 | Loudspeaker structure based on ring shaft phase-reversing tube application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105491480A (en) * | 2015-10-29 | 2016-04-13 | 李世煌 | Audio radiant tube as well as module and loudspeaker box provided with audio radiant tube |
| CN106303771A (en) * | 2015-05-28 | 2017-01-04 | 迪芬尼香港有限公司 | Omnidirectional's reflex cabinet structure |
| CN112040374A (en) * | 2020-09-11 | 2020-12-04 | 蒋佳伦 | Hidden type phase-reversing tube strip-shaped sound box structure |
Citations (6)
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|---|---|---|---|---|
| EP0598391A3 (en) * | 1992-11-18 | 1995-03-08 | Matsushita Electric Ind Co Ltd | Speaker apparatus and television receiver using the same. |
| CN2386589Y (en) * | 1999-07-06 | 2000-07-05 | 上海天爱实业有限公司 | Loudspeaker unit |
| CN1901752A (en) * | 2005-07-22 | 2007-01-24 | 张壮发 | Speaker system |
| US20110206228A1 (en) * | 2010-02-25 | 2011-08-25 | Yamaha Corporation | Acoustic structure including helmholtz resonator |
| CN202617308U (en) * | 2012-04-27 | 2012-12-19 | 郑全录 | Open type sound box |
| CN203912170U (en) * | 2014-04-30 | 2014-10-29 | 郑润柏 | Sound box structure based on axis-surrounding inverted tube application |
-
2014
- 2014-04-30 CN CN201410183164.2A patent/CN103957495A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0598391A3 (en) * | 1992-11-18 | 1995-03-08 | Matsushita Electric Ind Co Ltd | Speaker apparatus and television receiver using the same. |
| CN2386589Y (en) * | 1999-07-06 | 2000-07-05 | 上海天爱实业有限公司 | Loudspeaker unit |
| CN1901752A (en) * | 2005-07-22 | 2007-01-24 | 张壮发 | Speaker system |
| US20110206228A1 (en) * | 2010-02-25 | 2011-08-25 | Yamaha Corporation | Acoustic structure including helmholtz resonator |
| CN202617308U (en) * | 2012-04-27 | 2012-12-19 | 郑全录 | Open type sound box |
| CN203912170U (en) * | 2014-04-30 | 2014-10-29 | 郑润柏 | Sound box structure based on axis-surrounding inverted tube application |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303771A (en) * | 2015-05-28 | 2017-01-04 | 迪芬尼香港有限公司 | Omnidirectional's reflex cabinet structure |
| CN106303771B (en) * | 2015-05-28 | 2020-01-03 | 迪芬尼香港有限公司 | Omnidirectional phase reversal sound box structure |
| CN105491480A (en) * | 2015-10-29 | 2016-04-13 | 李世煌 | Audio radiant tube as well as module and loudspeaker box provided with audio radiant tube |
| CN112040374A (en) * | 2020-09-11 | 2020-12-04 | 蒋佳伦 | Hidden type phase-reversing tube strip-shaped sound box structure |
| CN112040374B (en) * | 2020-09-11 | 2021-10-22 | 宁波爱音美电声科技有限公司 | Hidden type phase-reversing tube strip-shaped sound box structure |
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Application publication date: 20140730 |
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