CN105163230A - Vibration attenuation sound box - Google Patents
Vibration attenuation sound box Download PDFInfo
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- CN105163230A CN105163230A CN201510622640.0A CN201510622640A CN105163230A CN 105163230 A CN105163230 A CN 105163230A CN 201510622640 A CN201510622640 A CN 201510622640A CN 105163230 A CN105163230 A CN 105163230A
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- damping
- vibration
- loud speaker
- electromagnet
- speaker
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Abstract
The invention relates to the technical field of sound systems, and more particularly to a vibration attenuation sound box. In the vibration attenuation sound box, a loudspeaker is suspended through an electromagnet, a sound box shell is made of a vibration attenuation board, and a vibration attenuation base is arranged at the bottom of a bottom board. The sound box has smaller resonance and has good tone quality.
Description
Technical field
The present invention relates to sound system technical field, particularly relate to a kind of vibration-damping speaker.
Background technology
Audio amplifier is last in whole sound system flow process, is also a most important composition, and its playing quality is very big on the impact of whole system performance, and estimate according to professional person, the contribution of audio amplifier to whole sound system accounts for more than 30% of whole system.
Audio amplifier itself comprises voice box casing, loud speaker and frequency divider, the impact of quality on tonequality of loud speaker and frequency divider accounts for 70%, and the impact of voice box casing on tonequality accounts for 30%, because loud speaker and the impact of frequency divider on tonequality larger, so prior art most people improve loud speaker and frequency divider, and few people go to improve voice box casing.
But voice box casing has a great impact the tonequality of audio amplifier also tool, wherein topmost impact is audio amplifier resonance, again because the frame of loud speaker is mainly fastened on the front panel of voice box casing by screw by the loud speaker of prior art, namely frame directly contacts with front panel, so the vibration produced when speaker operation can be directly delivered on the front panel of voice box casing by supporting constructions such as frame, and then voice box casing is resonated, also some audio amplifiers are had to be fixed on by loud speaker on other panel by support, can directly transfer vibrations on panel fixing with it during such speaker operation, voice box casing is resonated, the sound timbre that audio amplifier is sent is poor, also have the acoustic pressure of voice box casing accumulated inside also to vibrate by direct-drive voice box casing, this sound timbre that also audio amplifier can be caused to send is poor.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of resonance less and the good vibration-damping speaker of the sound timbre sent.
The technical solution adopted in the present invention is: a kind of vibration-damping speaker, comprise controller, voice box casing and loud speaker, described voice box casing comprises front panel, rear board, left panel, right panel, base plate and top board, described front panel is provided with a through hole matched with loud speaker, described loud speaker is provided with magnet, and be provided with between described loud speaker and magnet that NULL makes every magnetosphere, described left panel, right panel, base plate and top board are equipped with the electromagnet for adsorbing magnet, each electromagnet is provided with a magnetic field sensor for induced field Strength Changes, described electromagnet and magnetic sensors are all electrically connected with controller, and it is also fixing by flexible sealing material sealing between loud speaker and front panel, and described base plate is provided with a support for the support speaker when electromagnet does not work, and described voice box casing is made up of damping block, and be provided with vibration proof mounting bottom described voice box casing,
When work of electromagnet, loud speaker at the effect low suspension of electromagnetic force, can not have active force between loud speaker and support; When electromagnet quits work, loudspeaker position does not change, but loud speaker can be withstood support by support.
The mass component of described NULL is
The center of described support is provided with a magnetic flux hole passed through for the magnetic force of the electromagnet generation on base plate.
Described flexible sealing material is foam seal ring and glass cement.
Described loud speaker comprises shell and is arranged on the frame outside shell, and described magnet is shell-like, and described magnet is set in outside shell.
Described is shell-like every magnetosphere, and be describedly set on shell every magnetosphere, described magnet is set on magnetosphere.
Described pedestal upper end face is provided with pressure sensor, and described pressure sensor is electrically connected with controller.
The cored slab that described damping block is made up of elastomeric material, and be provided with the partition panel be made up of non-elastic material in the middle of described cored slab, and described partition panel is provided with guide hole, and be also provided with damping fluid in described cored slab.
The additive for increasing the coefficient of viscosity is provided with in described damping fluid.
Described vibration proof mounting comprises the upper backup pad, Upper gasket, damping shock absorber, lower gasket and the lower supporting plate that set gradually from top to bottom.
Adopt above technical scheme compared with prior art, the present invention has the following advantages: suspended by loud speaker by electromagnet, such loud speaker only has annexation by the front panel of flexible sealing material and voice box casing, namely the vibration that loud speaker produces can not be delivered on voice box casing through the parts directly connected, and only can be delivered on front panel by flexible material, pass to vibration in the past so greatly to be reduced by flexible material, so voice box casing can not be made during speaker operation to resonate, the sound timbre that such audio amplifier sends is better, and adopt magnetic sensors to detect magnetic field, like this can better control loudspeaker suspend time stability, shake is not easy when loud speaker is suspended, and be provided with between magnet and loud speaker every magnetosphere, the work of the influence of magnetic field loud speaker that can effectively prevent electromagnet from being formed like this itself, and a support is set, like this when not being energized, namely when electromagnet does not work, the function of support speaker can be played by support, and during magnet switching electricity, the position of loud speaker is constant, namely in the unexpected power-off of electromagnet, namely loud speaker can not cause speaker damage because there being range difference when suspended state becomes and relies on stent support state, voice box casing damping block is made, such voice box casing just can sponge the sound wave of a part of voice box casing inner accumulated, the vibration of voice box casing can be reduced like this, and a vibration proof mounting is set bottom voice box casing, so also can reduce the resonance of audio amplifier, the sound timbre that audio amplifier is sent is better.
And adopt the NULL that this component forms, better every magnetic effect.
The heart arranges a magnetic flux hole in the bracket, can prevent like this because support stops the impact that magnetic field produces.
Adopt foam seal ring and glass cement loud speaker and front panel seals to fix, so not only sealing fixed effect better, and greatly can reduce the vibration that loud speaker passes over.
Magnet is made shell-like, can better coordinate with multiple electromagnet like this, stressed more even when loud speaker is suspended.
Shell-like will be made every magnetosphere, can better separated magnetic effect be played.
Support arranges a pressure sensor, and when speaker operation, pressure sensor has detected pressure like this, then represent that loud speaker does not suspend completely, now can control corresponding electromagnet by controller and loud speaker is suspended completely.
Adopt the damping block of this structure, vibration major part can be absorbed by damping fluid, and vibration damping sound-absorbing effect is better.
In damping fluid, increase additive, make the effectiveness in vibration suppression of damping fluid better like this.
Adopt the vibration proof mounting of this structure, effectiveness in vibration suppression is better.
Accompanying drawing explanation
Fig. 1 is the side sectional view of a kind of vibration-damping speaker of the present invention.
Fig. 2 is the front section view of a kind of vibration-damping speaker of the present invention.
Fig. 3 is Figure 1A place enlarged drawing.
As shown in the figure: 1, loud speaker; 2, front panel; 3, rear board; 4, left panel; 5, right panel; 6, base plate; 7, top board; 8, magnet; 9, every magnetosphere; 10, electromagnet; 11, flexible sealing material; 12, support; 13, damping block; 14, vibration proof mounting; 15, magnetic flux hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further, but the present invention is not limited only to following embodiment.
A kind of vibration-damping speaker, comprise controller, voice box casing and loud speaker 1, described voice box casing comprises front panel 2, rear board 3, left panel 4, right panel 5, base plate 6 and top board 7, described front panel 2 is provided with a through hole matched with loud speaker 1, described loud speaker 1 is provided with magnet 8, and be provided with between described loud speaker 1 and magnet 8 that NULL makes every magnetosphere 9, described left panel 4, right panel 5, base plate 6 and top board 7 are equipped with the electromagnet 10 for adsorbing magnet, each electromagnet 10 is provided with a magnetic field sensor for induced field Strength Changes, described electromagnet and magnetic sensors are all electrically connected with controller, and also sealed fixing between loud speaker 1 and front panel 2 by flexible sealing material 11, and described base plate 6 is provided with a support 12 for the support speaker when electromagnet does not work 1, and described voice box casing is made up of damping block 13, and be provided with vibration proof mounting 14 bottom described voice box casing,
When work of electromagnet, loud speaker at the effect low suspension of electromagnetic force, can not have active force between loud speaker and support; When electromagnet quits work, loudspeaker position does not change, but loud speaker can be withstood support by support.
The mass component of described NULL is
The center of described support 12 is provided with a magnetic flux hole 15 passed through for the magnetic force of the electromagnet generation on base plate.
Described flexible sealing material 11 is foam seal ring and glass cement.
Described loud speaker 1 comprises shell and is arranged on the frame outside shell, and described magnet 8 is shell-like, and described magnet 8 is set in outside shell.
Described is shell-like every magnetosphere 9, and be describedly set on shell every magnetosphere 9, described magnet 8 is set on magnetosphere 9.
Described support 12 upper surface is provided with pressure sensor, and described pressure sensor is electrically connected with controller.
Described damping block 13 comprises the cored slab be made up of elastomeric material, and is provided with the partition panel be made up of non-elastic material in the middle of described cored slab, and described partition panel is provided with guide hole, and is also provided with damping fluid in described cored slab.
The additive for increasing the coefficient of viscosity is added with in described damping fluid.
Described vibration proof mounting 14 comprises the upper backup pad, Upper gasket, damping shock absorber, lower gasket and the lower supporting plate that set gradually from top to bottom.
During operation principle of the present invention: when audio amplifier power-off, now electromagnet 10 not energising, so can not magnetic field be produced and make loud speaker 1 suspend, so the most weight of loud speaker 1 is made by support 12, and fraction is made by the flexible sealing material 11 between loud speaker 1 and front panel 2, after audio amplifier is electrified, now electromagnet 10 is also energized startup simultaneously, then magnetic force is produced according to pre-set magnetic field size, active force is produced to the magnet be arranged on loud speaker 1, and then loud speaker 1 is suspended, major part gravity is offset by magnetic force, fraction is made by flexible sealing material 11, namely make there is no active force between loud speaker 1 and support 12, such loud speaker also can not drive support 12 to vibrate when vibrating, and because flexible sealing material 11 is flexible, even if so some vibration has been delivered to voice box casing by flexible sealing material, that is also minimum, then when audio amplifier again power-off time, because electromagnet 10 does not have again, then electromagnet 10 no longer works on, now loud speaker 1 can fall down under gravity, but because loud speaker 1 when suspending and between support 12 not distance or distance less, then support so can directly be caught by support 12 when loud speaker 1 does not suspend, loud speaker 1 can not be damaged like this.
And the control principle of the application's electrical equipment aspect is: when after audio amplifier energising, if pressure sensor has received pressure, then represent that now support 12 1 pressure returned by loud speaker 1, do not suspend completely, so this Time Controller can control the electromagnet 10 be arranged on base plate 6 increase magnetic force, until pressure sensor does not receive pressure, and magnetic sensors is testing magnetic field always, magnetic field around speaker magnets is matched with the magnetic field preset, and then loud speaker 1 can just be suspended, uniform force, if magnetic sensors is tested magnetic field and is not matched with the magnetic field of setting, then controller controls corresponding electromagnet 10 and makes corresponding change.
Claims (10)
1. a vibration-damping speaker, comprise controller, voice box casing and loud speaker (1), described voice box casing comprises front panel (2), rear board (3), left panel (4), right panel (5), base plate (6) and top board (7), described front panel (2) is provided with a through hole matched with loud speaker (1), it is characterized in that: described loud speaker (1) is provided with magnet (8), and be provided with between described loud speaker (1) and magnet (8) that NULL makes every magnetosphere (9), described left panel (4), right panel (5), base plate (6) and top board (7) are equipped with the electromagnet (10) for adsorbing magnet, each electromagnet (10) is provided with a magnetic field sensor for induced field Strength Changes, described electromagnet and magnetic sensors are all electrically connected with controller, and also sealed fixing between loud speaker (1) and front panel (2) by flexible sealing material (11), and described base plate (6) is provided with a support for the support speaker when electromagnet does not work (1) (12), and described voice box casing is made up of damping block (13), and bottom described voice box casing, be provided with vibration proof mounting (14),
When work of electromagnet, loud speaker at the effect low suspension of electromagnetic force, can not have active force between loud speaker and support; When electromagnet quits work, loudspeaker position does not change, but loud speaker can be withstood support by support.
2. a kind of vibration-damping speaker according to claim 1, is characterized in that: the mass component of described NULL is
3. a kind of vibration-damping speaker according to claim 1, is characterized in that: the center of described support (12) is provided with a magnetic flux hole (15) passed through for the magnetic force of the electromagnet generation on base plate.
4. a kind of vibration-damping speaker according to claim 1, is characterized in that: described flexible sealing material (11) is foam seal ring and glass cement.
5. a kind of vibration-damping speaker according to claim 1, it is characterized in that: described loud speaker (1) comprises shell and is arranged on the frame outside shell, described magnet (8) is shell-like, and described magnet (8) is set in outside shell.
6. a kind of vibration-damping speaker according to claim 5, is characterized in that: described is shell-like every magnetosphere (9), and be describedly set on shell every magnetosphere (9), described magnet (8) is set on magnetosphere (9).
7. a kind of vibration-damping speaker according to claim 1, is characterized in that: described support (12) upper surface is provided with pressure sensor, and described pressure sensor is electrically connected with controller.
8. a kind of vibration-damping speaker according to claim 1, it is characterized in that: described damping block (13) comprises the cored slab be made up of elastomeric material, and be provided with the partition panel be made up of non-elastic material in the middle of described cored slab, and described partition panel is provided with guide hole, and be also provided with damping fluid in described cored slab.
9. a kind of vibration-damping speaker according to claim 8, is characterized in that: be added with the additive for increasing the coefficient of viscosity in described damping fluid.
10. a kind of vibration-damping speaker according to claim 1, is characterized in that: described vibration proof mounting (14) comprises the upper backup pad, Upper gasket, damping shock absorber, lower gasket and the lower supporting plate that set gradually from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622640.0A CN105163230B (en) | 2015-09-25 | 2015-09-25 | A kind of vibration-damping speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622640.0A CN105163230B (en) | 2015-09-25 | 2015-09-25 | A kind of vibration-damping speaker |
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| Publication Number | Publication Date |
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| CN105163230A true CN105163230A (en) | 2015-12-16 |
| CN105163230B CN105163230B (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510622640.0A Active CN105163230B (en) | 2015-09-25 | 2015-09-25 | A kind of vibration-damping speaker |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08237780A (en) * | 1995-02-24 | 1996-09-13 | Aisin Takaoka Ltd | Speaker stand |
| CN1516519A (en) * | 2003-08-31 | 2004-07-28 | 江 徐 | Voice box |
| CN101132650A (en) * | 2006-08-25 | 2008-02-27 | 佛山市顺德区顺达电脑厂有限公司 | Vibration isolating structure of loudspeaker apparatus |
| CN202496065U (en) * | 2012-02-22 | 2012-10-17 | 比亚迪股份有限公司 | Sound-proofing device |
| CN203167227U (en) * | 2012-12-26 | 2013-08-28 | 威立达数码科技(深圳)有限公司 | Magnetic suspension sound box |
| CN104876563A (en) * | 2015-04-23 | 2015-09-02 | 程凯芬 | Ferrite magnetic-isolating material |
-
2015
- 2015-09-25 CN CN201510622640.0A patent/CN105163230B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08237780A (en) * | 1995-02-24 | 1996-09-13 | Aisin Takaoka Ltd | Speaker stand |
| CN1516519A (en) * | 2003-08-31 | 2004-07-28 | 江 徐 | Voice box |
| CN101132650A (en) * | 2006-08-25 | 2008-02-27 | 佛山市顺德区顺达电脑厂有限公司 | Vibration isolating structure of loudspeaker apparatus |
| CN202496065U (en) * | 2012-02-22 | 2012-10-17 | 比亚迪股份有限公司 | Sound-proofing device |
| CN203167227U (en) * | 2012-12-26 | 2013-08-28 | 威立达数码科技(深圳)有限公司 | Magnetic suspension sound box |
| CN104876563A (en) * | 2015-04-23 | 2015-09-02 | 程凯芬 | Ferrite magnetic-isolating material |
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| Publication number | Publication date |
|---|---|
| CN105163230B (en) | 2018-08-24 |
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