CN104507018A - Dual-drive miniature loudspeaker - Google Patents
Dual-drive miniature loudspeaker Download PDFInfo
- Publication number
- CN104507018A CN104507018A CN201410836115.4A CN201410836115A CN104507018A CN 104507018 A CN104507018 A CN 104507018A CN 201410836115 A CN201410836115 A CN 201410836115A CN 104507018 A CN104507018 A CN 104507018A
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- China
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- voice coil
- magnetic
- magnetic circuit
- circuit system
- frame
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Abstract
The invention discloses a dual-drive miniature loudspeaker which comprises two groups of magnetic circuit systems, voice coils, a vibrating diaphragm and a frame. The voice coils are arranged in magnetic gaps of the magnetic circuit systems, tops of the voice coils are suspended on the lower surface of the vibrating diaphragm, two ends of the vibrating diaphragm are connected with two ends of the frame, the magnetic circuit systems comprise magnetic covers, magnetic steel and pole pieces and are arranged on the frame in a central symmetry manner, the magnetic covers cylindrically encircle the voice coils, the magnetic steel is positioned inside the magnetic covers, and the pole pieces are arranged on the upper surface of the magnetic steel and are positioned between the voice coils. The dual-drive miniature loudspeaker has the advantages that a magnetic circuit system driving structure is added on the basis of a single magnetic circuit system of the traditional loudspeaker, accordingly, the electric-acoustic conversion efficiency of the miniature loudspeaker can be greatly improved, resonance frequencies and distortion of the miniature loudspeaker can be lowered under the condition of identical sizes, acoustic pressures can be greatly increased, and loss of other properties of the miniature loudspeaker can be prevented.
Description
Technical field
The present invention relates to loud speaker field, particularly relate to a kind of Dual Drive Microspeaker.
Background technology
Usually, electroacoustic transducer is acoustic output device, such as loud speaker, receiver, buzzer and vibrator, it converts the signal of telecommunication inputted from signal source to mechanical signal, with output sound or generation vibration force, earphone and speaker system are the representative example using this kind of acoustic output device.
Existing loud speaker only has a magnetic circuit system, and as shown in Figure 1, the electro-acoustic conversion efficiency that result in Microspeaker is extremely low, and resonance frequency is higher, and distortion is very high, and acoustic pressure is lower.
Summary of the invention
The present invention, in order to overcome the deficiency of above-mentioned technical problem, provides a kind of Dual Drive Microspeaker, can solve the problems of the technologies described above completely.
The technical scheme solved the problems of the technologies described above is as follows:
A kind of Dual Drive Microspeaker, comprise magnetic circuit system, voice coil loudspeaker voice coil, vibrating diaphragm and frame, described voice coil loudspeaker voice coil is arranged in the magnetic gap of magnetic circuit system, described voice coil loudspeaker voice coil top hangs on the lower surface of vibrating diaphragm, described vibrating diaphragm two ends are connected with the two ends of frame, described magnetic circuit system comprises magnetic cover, magnet steel and pole piece, described magnetic circuit system is two groups, two groups of described magnetic circuit systems are centrosymmetric and are arranged in frame, the described voice coil loudspeaker voice coil described in the cylindrical encirclement of magnetic cover, described magnet steel is positioned at the inside of magnetic cover, described magnet steel upper surface is provided with pole piece, described pole piece is positioned at the centre of voice coil loudspeaker voice coil.
One " work " font pad is provided with in the middle of described frame.
Described voice coil loudspeaker voice coil is total up to four, often organizes magnetic circuit system and arranges two.
Structure of the present invention is simple, only have on the basis of a magnetic circuit system in conventional loudspeakers, increase a magnetic circuit system Drive Structure again, substantially increase the electro-acoustic conversion efficiency of Microspeaker, make Microspeaker when same size, resonance frequency reduces, and distortion reduces, acoustic pressure is greatly improved, and other performances can not be lost.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the generalized section of existing single magnetic circuit system Drive Structure Microspeaker;
Fig. 2 is cross-sectional view of the present invention;
Fig. 3 is the sound pressure curve comparison diagram that the present invention tests out under the condition of 1W/1M;
Fig. 4 is the resonance frequency comparison diagram of the present invention and prior art;
Fig. 5 is the distortion comparison diagram of the present invention and prior art;
In figure: 1 is vibrating diaphragm, 2 is voice coil loudspeaker voice coil, and 3 is frame, and 4 is magnetic cover, and 5 is magnet steel, and 6 is pole piece, and 7 is magnetic circuit system, and 8 is pad.
Embodiment
A kind of Dual Drive Microspeaker as shown in Figure 2, comprise magnetic circuit system 7, voice coil loudspeaker voice coil 2, vibrating diaphragm 1 and frame 3, described voice coil loudspeaker voice coil 2 is arranged in the magnetic gap of magnetic circuit system 7, described voice coil loudspeaker voice coil 2 top hangs on the lower surface of vibrating diaphragm 1, described vibrating diaphragm 1 two ends are connected with the two ends of frame 3, described magnetic circuit system 7 comprises magnetic cover 4, magnet steel 5 and pole piece 6, described magnetic circuit system 7 is two groups, described magnetic circuit system 7 is centrosymmetric and is arranged in frame 3, the described voice coil loudspeaker voice coil 2 described in the cylindrical encirclement of magnetic cover 4, described magnet steel 5 is positioned at the inside of magnetic cover 4, described magnet steel 5 upper surface is provided with pole piece 6, described pole piece 6 is positioned at the centre of voice coil loudspeaker voice coil 2.
One " work " font pad 8 is provided with in the middle of described frame 3.
Described voice coil loudspeaker voice coil 2 is total up to four, often organizes magnetic circuit system and arranges two.
Structure of the present invention is simple, only have on the basis of a magnetic circuit system in conventional loudspeakers, increase a magnetic circuit system Drive Structure again, substantially increase the electro-acoustic conversion efficiency of Microspeaker, make Microspeaker when same size, resonance frequency reduces, distortion reduces (see Fig. 4 and Fig. 5), in addition, can obviously be found out by Fig. 3, acoustic pressure is greatly improved, and other performances can not be lost.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention, every according in technical spirit of the present invention to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.
Claims (3)
1. a Dual Drive Microspeaker, comprise magnetic circuit system, voice coil loudspeaker voice coil, vibrating diaphragm and frame, described voice coil loudspeaker voice coil is arranged in the magnetic gap of magnetic circuit system, described voice coil loudspeaker voice coil top hangs on the lower surface of vibrating diaphragm, described vibrating diaphragm two ends are connected with the two ends of frame, it is characterized in that, described magnetic circuit system comprises magnetic cover, magnet steel and pole piece, described magnetic circuit system is two groups, described magnetic circuit system is centrosymmetric and is arranged in frame, the described voice coil loudspeaker voice coil described in the cylindrical encirclement of magnetic cover, described magnet steel is positioned at the inside of magnetic cover, described magnet steel upper surface is provided with pole piece, described pole piece is positioned at the centre of voice coil loudspeaker voice coil.
2. a kind of Dual Drive Microspeaker according to claim 1, is characterized in that, is provided with one " work " font pad in the middle of described frame.
3. a kind of Dual Drive Microspeaker according to claim 1, it is characterized in that, described voice coil loudspeaker voice coil is total up to four, often organizes magnetic circuit system and arranges two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836115.4A CN104507018A (en) | 2014-12-29 | 2014-12-29 | Dual-drive miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836115.4A CN104507018A (en) | 2014-12-29 | 2014-12-29 | Dual-drive miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104507018A true CN104507018A (en) | 2015-04-08 |
Family
ID=52948720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410836115.4A Pending CN104507018A (en) | 2014-12-29 | 2014-12-29 | Dual-drive miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104507018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968977A (en) * | 2017-11-27 | 2018-04-27 | 重庆市量劲科技有限公司 | A kind of miniature dual-drive speaker |
| WO2021232461A1 (en) * | 2020-05-20 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7099489B2 (en) * | 2003-04-15 | 2006-08-29 | American Audio Components Inc. | Twin magnetic loop multifunctional vibrator-speaker transducer |
| CN202068567U (en) * | 2011-05-31 | 2011-12-07 | 歌尔声学股份有限公司 | Bass loudspeaker |
| CN202103839U (en) * | 2011-06-16 | 2012-01-04 | 嘉善星龙电讯产品有限公司 | Dual-driver loudspeaker |
| CN202282861U (en) * | 2011-11-17 | 2012-06-20 | 美特科技(苏州)有限公司 | Loudspeaker and vibration system thereof |
| CN102790937A (en) * | 2012-07-20 | 2012-11-21 | 泰州元升电子有限公司 | Loudspeaker |
| CN202713598U (en) * | 2012-07-19 | 2013-01-30 | 东莞正阳电子有限公司 | Dual-drive thin speaker |
| CN103096223A (en) * | 2013-02-04 | 2013-05-08 | 江阴市丰鸣宇电子有限公司 | Ultrathin flat plate speaker using double location support chip |
| CN104202704A (en) * | 2014-09-19 | 2014-12-10 | 嘉善康达斯电子有限公司 | Horn with double-vibration system |
| CN204392551U (en) * | 2014-12-29 | 2015-06-10 | 汉得利（常州）电子股份有限公司 | A kind of Dual Drive Microspeaker |
-
2014
- 2014-12-29 CN CN201410836115.4A patent/CN104507018A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7099489B2 (en) * | 2003-04-15 | 2006-08-29 | American Audio Components Inc. | Twin magnetic loop multifunctional vibrator-speaker transducer |
| CN202068567U (en) * | 2011-05-31 | 2011-12-07 | 歌尔声学股份有限公司 | Bass loudspeaker |
| CN202103839U (en) * | 2011-06-16 | 2012-01-04 | 嘉善星龙电讯产品有限公司 | Dual-driver loudspeaker |
| CN202282861U (en) * | 2011-11-17 | 2012-06-20 | 美特科技(苏州)有限公司 | Loudspeaker and vibration system thereof |
| CN202713598U (en) * | 2012-07-19 | 2013-01-30 | 东莞正阳电子有限公司 | Dual-drive thin speaker |
| CN102790937A (en) * | 2012-07-20 | 2012-11-21 | 泰州元升电子有限公司 | Loudspeaker |
| CN103096223A (en) * | 2013-02-04 | 2013-05-08 | 江阴市丰鸣宇电子有限公司 | Ultrathin flat plate speaker using double location support chip |
| CN104202704A (en) * | 2014-09-19 | 2014-12-10 | 嘉善康达斯电子有限公司 | Horn with double-vibration system |
| CN204392551U (en) * | 2014-12-29 | 2015-06-10 | 汉得利（常州）电子股份有限公司 | A kind of Dual Drive Microspeaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968977A (en) * | 2017-11-27 | 2018-04-27 | 重庆市量劲科技有限公司 | A kind of miniature dual-drive speaker |
| WO2021232461A1 (en) * | 2020-05-20 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |
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| RJ01 | Rejection of invention patent application after publication |