CN105245982A - Vibration-reducing loudspeaker box system - Google Patents
Vibration-reducing loudspeaker box system Download PDFInfo
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- CN105245982A CN105245982A CN201510622674.XA CN201510622674A CN105245982A CN 105245982 A CN105245982 A CN 105245982A CN 201510622674 A CN201510622674 A CN 201510622674A CN 105245982 A CN105245982 A CN 105245982A
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- vibration
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- electromagnet
- damping
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Abstract
The invention relates to the technical field of sound systems, specifically to a vibration-reducing loudspeaker box system. A loudspeaker box main body in the vibration-reducing loudspeaker box system adopts electromagnets to suspend a loudspeaker, and a foot stool is a hollow stand column filled with cast iron powder, and vibration reducing legs are arranged at the bottom of the foot stool. The loudspeaker box system is relative small in vibration, and better in tone quality while producing sound.
Description
Technical field
The present invention relates to sound system technical field, particularly relate to a kind of vibration-damping speaker system.
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.
Sound box system mainly comprises audio amplifier body and foot rest, described 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 65%, and the impact of voice box casing on tonequality accounts for 30%, foot rest accounts for 5% to tonequality impact, because loud speaker and frequency divider are on the impact of tonequality comparatively greatly, so prior art most people improve loud speaker and frequency divider, and few people go to improve voice box casing and foot rest.
But voice box casing has a great impact the tonequality of sound box system 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.
And foot rest has a great impact the tonequality of sound box system also tool, wherein most importantly itself vibrates and vibration passing, the foot rest of prior art is generally all just played a supporting role, and not anti-vibration and shock sucking function.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of vibration less and the good vibration-damping speaker system of the sound timbre sent.
The technical solution adopted in the present invention is: a kind of vibration-damping speaker system, comprise audio amplifier body and foot rest, described audio amplifier body comprises 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,
Described foot rest comprises bottom panel and is arranged on the polylith side plate on bottom panel, described audio amplifier body is placed on the upper surface of polylith side plate, and described polylith side plate is cored slab, and be filled with cast iron powder in described cored slab, four angles of described bottom panel lower surface are respectively equipped with vibration damping supporting leg, and described vibration damping supporting leg upper end is inserted in O type circle and is connected with bottom panel
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.
Described pedestal upper end face is provided with pressure sensor, and described pressure sensor is electrically connected with controller.
Described column is made up of high-carbon cast iron plate, and its phosphorus content is 3.5%-3.8%, and in described open tubular column, the space of 90% is filled with cast iron powder, and the diameter of described cast iron powder is 600 μm.
Described vibration damping supporting leg comprises slide block, shell, spring and capping, the cavity for skid is provided with in described shell, and described shell upper end is provided with the opening stretched out for upper end of slide block, lidstock is passed through in described shell lower end, described slide block lower circumferential face is provided with the first annular protrusion, described opening is provided with the second annular protrusion skidded off for spacing first protruding anti-limited slip block, and described spring one end and slide block lower surface offset, and the spring other end and capping upper surface offset.
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, and the column of foot rest is made hollow, and fill cast iron powder inside, fast the vibration that audio amplifier body passes over can be transferred to heat energy like this to discharge, vibration can not be transmitted back and forth through column, and for cast iron powder, the cross section of iron and graphite bi-material is had to rub, also easier vibration conversion to be fallen, and just contacted with voice box casing by the upper surface of side plate, vibration on such voice box casing is just not easy through side plate transmission back and forth, major part directly can be transformed by side plate, and vibration damping supporting leg is provided with on bottom panel lower surface, so just can better reduce the vibration of foot rest, such resonance that can reduce voice box casing and cause, the sound timbre that sound box system is produced 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.
High-carbon cast iron plate is adopted by column to make, because graphite granule is thick in high-carbon cast iron plate, change vibration mechanical energy into thermal energy consumption faster with iron motherboard friction energy to fall, so damping capacity is stronger, by in open tubular column 90% space fill cast iron powder, arrange like this through experiment can obtain in filling 90% time tonequality best.
Adopt the vibration damping supporting leg 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 system of the present invention.
Fig. 2 is the front section view of a kind of vibration-damping speaker system of the present invention.
Fig. 3 is Figure 1A place enlarged drawing.
Fig. 4 is the cutaway view of vibration damping leg in a kind of vibration-damping speaker system of the present invention.
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, bottom panel; 14 side plates; 15, vibration damping supporting leg; 16, magnetic flux hole; 17, slide block; 18, shell; 29, spring; 20, capping; 21, the first annular protrusion; 22, the second annular protrusion.
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 system, comprise audio amplifier body and foot rest, described audio amplifier body comprises 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 10 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,
Described foot rest comprises bottom panel 13 and is arranged on the polylith side plate 14 on bottom panel 13, described audio amplifier body is placed on the upper surface of polylith side plate 14, and described polylith side plate 14 is cored slab, and be filled with cast iron powder in described cored slab, four angles of described bottom panel 13 lower surface are respectively equipped with vibration damping supporting leg 15, and described vibration damping supporting leg 15 upper end is inserted in O type circle and is connected with bottom panel 13
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 16 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 side plate 14 is made up of high-carbon cast iron plate, and its phosphorus content is 3.5%-3.8%; In described side plate 14, the space of 90% is filled with cast iron powder, and the diameter of described cast iron powder is 600 μm.
Described vibration damping supporting leg 15 comprises slide block 17, shell 18, spring 19 and capping 20, the cavity slided for slide block 17 is provided with in described shell 18, and described shell 18 upper end is provided with the opening stretched out for slide block 17 upper end, described shell 18 lower end is sealed by capping 20, described slide block 17 lower circumferential face is provided with the first annular protrusion 21, described opening is provided with the second annular protrusion 22 skidded off for the spacing first protruding 21 anti-limited slip blocks, and described spring 19 one end and slide block 17 lower surface offset, spring 19 other end and capping 20 upper surface offset.
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 (9)
1. a vibration-damping speaker system, comprise audio amplifier body and foot rest, described audio amplifier body comprises 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 (10) 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 (12),
Described foot rest comprises bottom panel (13) and is arranged on the polylith side plate (14) on bottom panel (13), described audio amplifier body is placed on the upper surface of polylith side plate (14), and described polylith side plate (14) is cored slab, and be filled with cast iron powder in described cored slab, four angles of described bottom panel (13) lower surface are respectively equipped with vibration damping supporting leg (15), and described vibration damping supporting leg (15) upper end is inserted in O type circle and is connected with bottom panel (13)
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 system according to claim 1, is characterized in that: the mass component of described NULL is
3. a kind of vibration-damping speaker system according to claim 1, is characterized in that: the center of described support (12) is provided with a magnetic flux hole (16) passed through for the magnetic force of the electromagnet generation on base plate.
4. sound box system 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 system according to claim 1, it is characterized in that: described loud speaker 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 system according to claim 5, it is characterized in that: described every magnetosphere (9) be shell-like, describedly be set on shell every magnetosphere (9), described magnet (8) is set on magnetosphere (9).
7. a kind of vibration-damping speaker system 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 system according to claim 1, it is characterized in that: described side plate (14) is made up of high-carbon cast iron plate, and its phosphorus content is 3.5%-3.8%; In described side plate (14), the space of 90% is filled with cast iron powder, and the diameter of described cast iron powder is 600 μm.
9. a kind of vibration-damping speaker system according to claim 1, it is characterized in that: described vibration damping supporting leg (15) comprises slide block (17), shell (18), spring (19) and capping (20), the cavity slided for slide block (17) is provided with in described shell (18), and described shell (18) upper end is provided with the opening stretched out for slide block (17) upper end, described shell (18) lower end is by capping (20) sealing, described slide block (17) lower circumferential face is provided with the first annular protrusion (21), described opening is provided with the second annular protrusion (22) skidded off for the anti-limited slip block of spacing first projection (21), and described spring (19) one end and slide block (17) lower surface offset, spring (19) other end and capping (20) upper surface offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622674.XA CN105245982B (en) | 2015-09-25 | 2015-09-25 | A kind of vibration-damping speaker system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622674.XA CN105245982B (en) | 2015-09-25 | 2015-09-25 | A kind of vibration-damping speaker system |
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| Publication Number | Publication Date |
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| CN105245982A true CN105245982A (en) | 2016-01-13 |
| CN105245982B CN105245982B (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510622674.XA Active CN105245982B (en) | 2015-09-25 | 2015-09-25 | A kind of vibration-damping speaker system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI815485B (en) * | 2021-05-31 | 2023-09-11 | 仁寶電腦工業股份有限公司 | Loudspeaker device |
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 CN201510622674.XA patent/CN105245982B/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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI815485B (en) * | 2021-05-31 | 2023-09-11 | 仁寶電腦工業股份有限公司 | Loudspeaker device |
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| CN105245982B (en) | 2018-08-24 |
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