CN204392551U - A kind of Dual Drive Microspeaker - Google Patents
A kind of Dual Drive Microspeaker Download PDFInfo
- Publication number
- CN204392551U CN204392551U CN201420853654.4U CN201420853654U CN204392551U CN 204392551 U CN204392551 U CN 204392551U CN 201420853654 U CN201420853654 U CN 201420853654U CN 204392551 U CN204392551 U CN 204392551U
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- China
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- voice coil
- circuit system
- magnetic circuit
- magnetic
- coil loudspeaker
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Abstract
The utility model discloses a kind of Dual Drive Microspeaker, comprise magnetic circuit system, voice coil loudspeaker voice coil, vibrating diaphragm and frame, voice coil loudspeaker voice coil is arranged in the magnetic gap of magnetic circuit system, voice coil loudspeaker voice coil top hangs on the lower surface of vibrating diaphragm, vibrating diaphragm two ends are connected with the two ends of frame, magnetic circuit system comprises magnetic cover, magnet steel and pole piece, magnetic circuit system is two groups, magnetic circuit system is centrosymmetric and is arranged in frame, voice coil loudspeaker voice coil described in the cylindrical encirclement of magnetic cover, magnet steel is positioned at the inside of magnetic cover, and magnet steel upper surface is provided with pole piece, and pole piece is positioned at the centre of voice coil loudspeaker voice coil.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, and acoustic pressure is greatly improved, and other performances can not be lost.
Description
Technical field
The utility model relates to loud speaker field, particularly relates 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 utility model, 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.
The utility model structure 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 utility model is described in further detail.
Fig. 1 is the generalized section of existing single magnetic circuit system Drive Structure Microspeaker;
Fig. 2 is cross-sectional view of the present utility model;
Fig. 3 is the sound pressure curve comparison diagram that the utility model tests out under the condition of 1W/1M;
Fig. 4 is the resonance frequency comparison diagram of the utility model and prior art;
Fig. 5 is the distortion comparison diagram of the utility model 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.
The utility model structure 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; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model, every according in technical spirit of the present utility model to any simple modification, equivalent variations that above embodiment is done, all fall within protection range of the present utility model.
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 |
|---|---|---|---|
| CN201420853654.4U CN204392551U (en) | 2014-12-29 | 2014-12-29 | A kind of Dual Drive Microspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853654.4U CN204392551U (en) | 2014-12-29 | 2014-12-29 | A kind of Dual Drive Microspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392551U true CN204392551U (en) | 2015-06-10 |
Family
ID=53365228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420853654.4U Active CN204392551U (en) | 2014-12-29 | 2014-12-29 | A kind of Dual Drive Microspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204392551U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104507018A (en) * | 2014-12-29 | 2015-04-08 | 汉得利（常州）电子股份有限公司 | Dual-drive miniature loudspeaker |
| WO2021232461A1 (en) * | 2020-05-20 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN115914952A (en) * | 2022-12-01 | 2023-04-04 | 共达电声股份有限公司 | Loudspeaker |
-
2014
- 2014-12-29 CN CN201420853654.4U patent/CN204392551U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104507018A (en) * | 2014-12-29 | 2015-04-08 | 汉得利（常州）电子股份有限公司 | Dual-drive miniature loudspeaker |
| WO2021232461A1 (en) * | 2020-05-20 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN115914952A (en) * | 2022-12-01 | 2023-04-04 | 共达电声股份有限公司 | Loudspeaker |
| CN115914952B (en) * | 2022-12-01 | 2023-05-16 | 共达电声股份有限公司 | Loudspeaker |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |