CN103079154A - Novel driving device for automobile audio - Google Patents
Novel driving device for automobile audio Download PDFInfo
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- CN103079154A CN103079154A CN2013100224135A CN201310022413A CN103079154A CN 103079154 A CN103079154 A CN 103079154A CN 2013100224135 A CN2013100224135 A CN 2013100224135A CN 201310022413 A CN201310022413 A CN 201310022413A CN 103079154 A CN103079154 A CN 103079154A
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- vibration source
- voice coil
- drive unit
- pole piece
- fixed
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Abstract
The invention relates to automobile audios and particularly relates to a novel driving device for an automobile audio. The driving device comprises a vibration source, wherein the vibration source comprises a magnetic cover, the magnetic cover is provided with an upward opening cavity, and magnetic steel is fixedly arranged in the cavity; a pole piece is fixedly arranged above the magnetic steel, and voice coils are sleeved on the periphery of the outer side of the pole piece; and magnetic liquid is filled in gaps between the voice coils and the pole piece. Due to the adoption of the structure, a vibration film is not utilized; as the vibration source is not supported by the vibration film, the vibration unbalance is caused, the distortion is large, and the sound effect is poor; and as the magnetic liquid which has a damping effect and can move according to magnetic force lines of magnets is filled in the gaps between the voice coils and the pole piece, the vibration unbalance caused by insufficient support on a vibration source body is made up. Besides, an automotive top decoration plate is taken as a transmission medium of the vibration source, so that the radiation area of the vibration source is effectively improved, and the sound pressure of loudspeakers is then increased.
Description
Technical field
The present invention relates to the drive unit of a kind of automobile audio, particularly a kind of automobile audio.
Background technology
The sound system of conventional automobile all is to support the use with traditional high pitch loudspeaker and woofer in the market.But the shortcomings such as because conventional loudspeakers all needs to have a vibrating membrane, so just volume is large, cost is high so that traditional loud speaker has, the height that takes up room.
Summary of the invention
The technical issues that need to address of the present invention provide the little automobile audio of a kind of volume.
For solving above-mentioned technical problem, novel automobile acoustic of the present invention is used drive unit involving vibrations source, and described vibration source comprises the magnetic cover, and described magnetic cover has upwards open cavity, is fixed with magnet steel in the described cavity; Described magnet steel top is fixed with pole piece, and cover has voice coil loudspeaker voice coil on the outer circumference of described pole piece; Fill magnetic liquid in the gap of described voice coil loudspeaker voice coil and pole piece.
Further, described vibration source is fixed in the fixed mount, and described fixed mount and automobile top decorative panel fix, and described vibration source is mutually bonding with the automobile top decorative panel.
Further, be provided with cushion blocking between described vibration source and the automobile top decorative panel, described cushion blocking is mutually bonding with vibration source and automobile top decorative panel respectively.
Further, be provided with to support the connecting plate of cushion blocking between the voice coil loudspeaker voice coil of described cushion blocking and vibration source, described cushion blocking and connecting plate are adhesively fixed.
Further, the unit are of described automobile top decorative panel arranges a vibration source, the center phase deviation in described vibration source center and each unit are zone.
Further, described cushion blocking is that the Poron material is made.
Further, the outside of described magnetic cover is set with the basin frame, is fixed with to support the locating branch slice of voice coil loudspeaker voice coil on the described basin frame.
Further, described locating branch slice adopts the CONEX material to make.
Further, a side of described basin frame is fixed with terminal block, and described voice coil loudspeaker voice coil the two poles of the earth are connected to the terminal block two ends.
After adopting said structure, the present invention does not adopt vibrating membrane, like this owing to there is not the vibrating membrane support, causes vibrating unbalance, and the large audio of distortion is poor; But since in the gap of voice coil loudspeaker voice coil and pole piece, filled with damping action can be according to the magnetic liquid of magnet magnetic line of force motion, thereby it is unbalance to have remedied the vibration that causes not owing to the support of vibration source own.In addition, adopt the automobile top decorative panel as the transmission medium of vibration source, thereby the swept area of Effective Raise vibration source improve the loud speaker acoustic pressure.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic cross-section that novel automobile acoustic of the present invention is used the drive unit vibration source.
Fig. 2 is the structural representation that novel automobile acoustic of the present invention is used drive unit vibration source and automobile top decorative panel.
Fig. 3 is that novel automobile acoustic of the present invention uses the drive unit vibration source at the scheme of installation of automobile top device.
Among the figure: 1 is the magnetic cover, and 2 is magnet steel, and 3 is pole piece, and 4 is voice coil loudspeaker voice coil, and 5 is magnetic liquid, and 6 is cushion blocking, and 7 is connecting plate, and 8 is the basin frame, and 9 is locating branch slice, and 10 is connecting plate, and 11 is the automobile top decorative panel, and 12 is vibration source, and 13 is fixed mount, and 14 is screw
Embodiment
As shown in Figure 1, novel automobile acoustic of the present invention is used drive unit involving vibrations source, and described vibration source comprises magnetic cover 1, and described magnetic cover 1 has upwards open cavity, is fixed with magnet steel 2 in the described cavity, described magnetic cover 1 and the bonding formation external magnetic field of magnet steel 2 usefulness glue.Described magnet steel 2 tops are fixed with pole piece 3, described pole piece 3 and the bonding formation internal magnetic field of magnet steel 2 usefulness glue.Cover has voice coil loudspeaker voice coil 4 on the outer circumference of described pole piece 3, and described voice coil loudspeaker voice coil 4 is positioned in the middle of the inner and outer magnetic field.The integral body of above magnetic cover 1, magnet steel 2, pole piece 3 and voice coil loudspeaker voice coil 4 forms vibration source 12(as shown in Figure 2) because vibration source of the present invention itself has vibrating diaphragm to support, cause vibrating unbalance, the large audio of distortion is poor.In order to address this problem, in the gap of described voice coil loudspeaker voice coil 4 and pole piece 3, fill magnetic liquid 5, magnetic liquid 5 has damping action and can according to the motion of the magnet magnetic line of force, know clearly because the vibration that voice coil loudspeaker voice coil and magnetic steel gap and the support of vibration source own cause not is unbalance thereby remedy.
Further, because the driving head volume of drive unit of the present invention is little, swept area is little, and the ability that causes transmitting sound is little.In order to address this problem, as shown in Figure 2, described vibration source 12 is fixed in the fixed mount 13, described fixed mount 13 fixes by screw 14 and automobile top decorative panel 11.Utilize the vibration in fixed mount constrained vibration source, reduce because the unbalance unusual sound that causes of vibration.Adopt like this automobile top decorative panel as the transmission medium of vibration source, thereby the swept area of Effective Raise vibration source improve the loud speaker acoustic pressure.
Can cause audio distortions large when but vibration source and automobile top decorative panel produce resonance like this, sound is poor; So further, be provided with cushion blocking 6 between described vibration source 12 and automobile top decorative panel 11, described cushion blocking 6 is made by the 1mmPoron material, and cushion blocking 6 is to reduce mechanical oscillation, the unusual sound of product when reducing vibration.Described cushion blocking 6 is mutually bonding with the automobile top decorative panel with vibration source respectively, but because the top contact area of vibration source voice coil loudspeaker voice coil 4 is very little, if cushion blocking 6 and vibration source voice coil loudspeaker voice coil 4 are directly bonded together, voice coil loudspeaker voice coil 4 can't form stable support to cushion blocking 6, so be provided with to support the connecting plate 7 of cushion blocking 6 between the voice coil loudspeaker voice coil 4 of described cushion blocking 6 and vibration source, described connecting plate 7 is adhesively fixed with cushion blocking 6 and voice coil loudspeaker voice coil 4 usefulness glue.
As shown in Figure 3, the unit are of described automobile top decorative panel arranges a vibration source, select to be equipped with the unit are of a vibration source by the performance decision of vibration source itself, the wide 297mm of long 420mm* joins a vibration source as a unit are on the automobile top decorative panel here.Because being connected with the automobile top decorative panel, vibration source produces the distortion that resonance causes in order further to reduce, with the center phase deviation in described vibration source center and each unit are zone.As shown in Figure 3, each grid of automobile top decorative panel represents a unit are, joins a vibration source in each grid, the off-centring 20mm*20mm of described vibration source center and each grid.
Further, the outside of described magnetic cover 1 is set with basin frame 8, is fixed with to support the locating branch slice 9 of voice coil loudspeaker voice coil on the described basin frame.Described locating branch slice 9 adopts the CONEX material to make, and has improved the supporting role of locating branch slice.Further, for so that drive unit overall structure of the present invention is more compact, terminal block 10 is arranged on the basin frame 8, terminal block 10 is fixed on a side of basin frame 8, described voice coil loudspeaker voice coil the two poles of the earth are connected to the terminal block two ends, the energising that realizes voice coil loudspeaker voice coil 4 by terminal block 10 like this.
Although more than described the specific embodiment of the present invention, those of skill in the art in the art should be appreciated that these only illustrate, and can make various changes or modifications to these execution modes, and not deviate from principle of the present invention and essence.Scope of the present invention only has appended claims to limit.
Claims (9)
1. novel automobile acoustic drive unit is characterized in that: the involving vibrations source, and described vibration source comprises the magnetic cover, described magnetic cover has upwards open cavity, is fixed with magnet steel in the described cavity; Described magnet steel top is fixed with pole piece, and cover has voice coil loudspeaker voice coil on the outer circumference of described pole piece; Fill magnetic liquid in the gap of described voice coil loudspeaker voice coil and pole piece.
2. according to novel automobile acoustic drive unit claimed in claim 1, it is characterized in that: described vibration source is fixed in the fixed mount, and described fixed mount and automobile top decorative panel fix, and described vibration source is mutually bonding with the automobile top decorative panel.
3. according to novel automobile acoustic drive unit claimed in claim 2, it is characterized in that: be provided with cushion blocking between described vibration source and the automobile top decorative panel, described cushion blocking is mutually bonding with vibration source and automobile top decorative panel respectively.
4. according to novel automobile acoustic drive unit claimed in claim 3, it is characterized in that: be provided with to support the connecting plate of cushion blocking between the voice coil loudspeaker voice coil of described cushion blocking and vibration source, described cushion blocking and connecting plate are adhesively fixed.
5. according to novel automobile acoustic drive unit claimed in claim 4, it is characterized in that: the unit are of described automobile top decorative panel arranges a vibration source, the center phase deviation in described vibration source center and each unit are zone.
6. according to each described novel automobile acoustic drive unit in the claim 3 to 5, it is characterized in that: described cushion blocking is that the Poron material is made.
7. according to novel automobile acoustic drive unit claimed in claim 1, it is characterized in that: the outside of described magnetic cover is set with the basin frame, is fixed with to support the locating branch slice of voice coil loudspeaker voice coil on the described basin frame.
8. according to novel automobile acoustic drive unit claimed in claim 7, it is characterized in that: described locating branch slice adopts the CONEX material to make.
9. according to novel automobile acoustic drive unit claimed in claim 7, it is characterized in that: a side of described basin frame is fixed with terminal block, and described voice coil loudspeaker voice coil the two poles of the earth are connected to the terminal block two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100224135A CN103079154A (en) | 2013-01-20 | 2013-01-20 | Novel driving device for automobile audio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100224135A CN103079154A (en) | 2013-01-20 | 2013-01-20 | Novel driving device for automobile audio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103079154A true CN103079154A (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100224135A Pending CN103079154A (en) | 2013-01-20 | 2013-01-20 | Novel driving device for automobile audio |
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| CN (1) | CN103079154A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341753A (en) * | 2015-07-06 | 2017-01-18 | 通用汽车环球科技运作有限责任公司 | Frame rail-integrated subwoofer assembly and method |
| WO2017161473A1 (en) * | 2016-03-19 | 2017-09-28 | 汉得利（常州）电子股份有限公司 | Light-weight vehicle-mounted vibration speaker based on 3d-sound effect |
| CN108650602A (en) * | 2018-08-01 | 2018-10-12 | 无锡杰夫电声股份有限公司 | A kind of thin high-power acoustic actuator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1366443A (en) * | 2001-01-17 | 2002-08-28 | 叶建国 | Loudspeaker |
| CN101778327A (en) * | 2010-01-07 | 2010-07-14 | 姚宗栋 | Electricity and sound conversion method and device |
| CN202035132U (en) * | 2011-03-11 | 2011-11-09 | 义钛科技有限公司 | Vibration loudspeaker with adsorption structure |
| CN202111839U (en) * | 2011-06-22 | 2012-01-11 | 梅庆开 | Portable resonant sound box |
-
2013
- 2013-01-20 CN CN2013100224135A patent/CN103079154A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1366443A (en) * | 2001-01-17 | 2002-08-28 | 叶建国 | Loudspeaker |
| CN101778327A (en) * | 2010-01-07 | 2010-07-14 | 姚宗栋 | Electricity and sound conversion method and device |
| CN202035132U (en) * | 2011-03-11 | 2011-11-09 | 义钛科技有限公司 | Vibration loudspeaker with adsorption structure |
| CN202111839U (en) * | 2011-06-22 | 2012-01-11 | 梅庆开 | Portable resonant sound box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341753A (en) * | 2015-07-06 | 2017-01-18 | 通用汽车环球科技运作有限责任公司 | Frame rail-integrated subwoofer assembly and method |
| WO2017161473A1 (en) * | 2016-03-19 | 2017-09-28 | 汉得利（常州）电子股份有限公司 | Light-weight vehicle-mounted vibration speaker based on 3d-sound effect |
| CN108650602A (en) * | 2018-08-01 | 2018-10-12 | 无锡杰夫电声股份有限公司 | A kind of thin high-power acoustic actuator |
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Application publication date: 20130501 |