CN201550270U - Parallel double magnetic circuit and double voice coil strip-shaped loudspeaker - Google Patents
Parallel double magnetic circuit and double voice coil strip-shaped loudspeaker Download PDFInfo
- Publication number
- CN201550270U CN201550270U CN2009201985984U CN200920198598U CN201550270U CN 201550270 U CN201550270 U CN 201550270U CN 2009201985984 U CN2009201985984 U CN 2009201985984U CN 200920198598 U CN200920198598 U CN 200920198598U CN 201550270 U CN201550270 U CN 201550270U
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- China
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- voice coil
- magnetic circuit
- strip
- double
- loud speaker
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Abstract
The utility model relates to a parallel double magnetic circuit and double voice coil strip-shaped loudspeaker, at least comprising a strip-shaped bracket and voice coil; the strip-shaped bracket is provided with two parallel and independent magnetic circuit devices; and the two magnetic circuit devices are arranged on the center lines of long shafts of the loudspeaker in parallel, and are symmetrical to the center lines of short shafts of the loudspeaker. The parallel double magnetic circuit and double voice coil strip-shaped loudspeaker effectively improves the problem that the voice film of the loudspeaker is not uniform due to driving force of the magnetic field in the directions of the long shafts and the short shafts, is beneficial to changing the whole structure of the loudspeaker into a narrow strip shape, and has low cost and low processing difficulty. The structure of the utility model is more applicable to audio playing scheme of digital products, such as mobile phones, notebook computers and the like.
Description
Technical field
The utility model relates to double magnetic circuit, the double-tone circle strip loud speaker that the voice playing of digital products such as a kind of mobile phone, MP3, household electrical appliance is used, and is applicable to that digital product, household electrical appliances make the field.
Background technology
Because digital products such as mobile phone and notebook computer are to the development of miniaturization, ultra-thinization, the employed Microspeakers of digital product such as corresponding mobile phone, notebook computer also develop to littler, thinner direction.But do for a short time after to a certain degree when the size of loud speaker, some technical indicators such as the volume of loud speaker, distortion just can't reach requirement.Therefore the loud speaker of strip has obtained use, but traditional strip sound film of loudspeaker causes nonlinear distortion to increase lower tone in the strength imbalance that long and short direction of principal axis is driven by magnetic circuit.This problem at the existence of strip loud speaker, there is producer to adopt strip magnetic structure and strip voice coil loudspeaker voice coil, but it is big that strip magnetic circuit and strip voice coil loudspeaker voice coil are manufactured difficulty, therefore and cost is very high, provides a kind of with low cost and make the sound film be subjected to the uniform loud speaker of field drives power to become the task of top priority at long and short direction of principal axis.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned existence, provide a kind of adopted two independently, circular magnetic loop structure arranged side by side and the loud speaker of circular voice coil loudspeaker voice coil, reduced nonlinear distortion, improved the tonequality of loud speaker.
The purpose of this utility model is finished by following technical solution, described a kind of double magnetic circuit two-tone ring strip loud speaker arranged side by side, strip support and voice coil loudspeaker voice coil have been which comprises at least, described strip support be provided with two side by side, magnetic circuit device independently, above-mentioned two magnetic circuit devices are installed on the major axis center line of loud speaker side by side, and are symmetrical in the minor axis center line of loud speaker.
Described magnetic circuit device includes permanent magnet, magnetic conduction pole piece and cup-shaped magnetic cover, this cup-shaped magnetic cover is arranged on the major axis center line of loud speaker strip support, cup-shaped magnetic cover bottom is provided with permanent magnet, be connected with the magnetic conduction pole piece on the permanent magnet, permanent magnet, the magnetic conduction pole piece outside and cup-shaped magnetic cover installed inside have circular voice coil loudspeaker voice coil.
The sound symphysis that described circular voice coil loudspeaker voice coil and strip are circular arc ball top is connected together, and this sound film is provided with the reinforcement of one or more.
The utility model has improved sound film of loudspeaker effectively in the long and short axial uneven problem of field drives power that is subjected to, help the total of loud speaker is become long narrow bar shaped, and cost is not high, difficulty of processing is low, the structure of this utility model more is applicable to the voice playing scheme of digital products such as mobile phone, notebook computer.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a cutaway view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done detailed introduction: shown in Fig. 1-2: a kind of double magnetic circuit two-tone ring strip loud speaker arranged side by side, strip support and voice coil loudspeaker voice coil have been which comprises at least, described strip support 1 be provided with two side by side, magnetic circuit device independently, above-mentioned two magnetic circuit devices are installed on the major axis center line of loud speaker side by side, and are symmetrical in the minor axis center line of loud speaker.
Described two magnetic circuit device structures are identical, one of them magnetic circuit device includes permanent magnet 4a, magnetic conduction pole piece 5a and cup-shaped magnetic cover 3a, this cup-shaped magnetic cover 3a is arranged on the major axis center line of loud speaker strip support (1), cup-shaped magnetic cover 3a bottom is provided with permanent magnet 4a, be connected with magnetic conduction pole piece 5a on the permanent magnet 4a, permanent magnet 4a, the magnetic conduction pole piece 5a outside and cup-shaped magnetic cover 3a installed inside have circular voice coil loudspeaker voice coil 6a.
The sound film 2 that described circular voice coil loudspeaker voice coil 6a and strip are circular arc ball top links together, and this sound film 2 is provided with the reinforcement of one or more.
Embodiment 1
Support 1 is provided with cup-shaped magnetic cover 3a, 3b, is provided with permanent magnet 4a in the bottom of cup-shaped magnetic cover 3a, is connected with magnetic conduction pole piece 5a at permanent magnet 4a.Be provided with permanent magnet 4b in the bottom of cup-shaped magnetic cover 3b equally, on permanent magnet 4b, be connected with magnetic conduction pole piece 5b.In permanent magnet 4a, the magnetic conduction pole piece 5a outside, around a circular voice coil loudspeaker voice coil 6a.Equally in permanent magnet 4b, the magnetic conduction pole piece 5b outside, around a circular voice coil loudspeaker voice coil 6b, circular voice coil loudspeaker voice coil 6a, 6b are bonded on the sound film securely, the sound film connects with the PBT support by the ring that has of oneself, circular voice coil loudspeaker voice coil 6a lead-in wire stretches out and is attached to terminal block 7a, circular voice coil loudspeaker voice coil 6b lead-in wire stretches out and is attached to terminal block 7b, and circular voice coil loudspeaker voice coil is no matter be series and parallel, and it is identical all will to make two circular voice coil loudspeaker voice coils remain in the magnetic circuit direction of motion.
Support 1 is provided with sound film 2, on the sound film 2 reinforcement is set, ecto-entad is shaped on garden arc ring and garden arc, the sidetone film has ball top upwards in circular voice coil loudspeaker voice coil, these guarantee sound film 2 when vibration all by Principles of Acoustics designs, major axis and know that axial diaphragm can both move uniformly, thereby reach the tonequality of improving loud speaker, reduce nonlinear distortion.
Claims (3)
1. double magnetic circuit two-tone ring strip loud speaker arranged side by side, strip support and voice coil loudspeaker voice coil have been which comprises at least, it is characterized in that described strip support (1) be provided with two side by side, magnetic circuit device independently, above-mentioned two magnetic circuit devices are installed on the major axis center line of loud speaker side by side, and are symmetrical in the minor axis center line of loud speaker.
2. double magnetic circuit two-tone ring strip loud speaker arranged side by side according to claim 1, it is characterized in that a described magnetic circuit device includes permanent magnet (4a), magnetic conduction pole piece (5a) and cup-shaped magnetic cover (3a), this cup-shaped magnetic cover (3a) is arranged on the major axis center line of loud speaker strip support (1), cup-shaped magnetic cover (3a) bottom is provided with permanent magnet (4a), be connected with magnetic conduction pole piece (5a) on the permanent magnet (4a), permanent magnet (4a), magnetic conduction pole piece (5a) outside and cup-shaped magnetic cover (3a) installed inside have circular voice coil loudspeaker voice coil (6a).
3. double magnetic circuit two-tone ring strip loud speaker arranged side by side according to claim 1 and 2 is characterized in that the sound film (2) that described circular voice coil loudspeaker voice coil (6a) and strip are circular arc ball top links together, and this sound film (2) is provided with the reinforcement of one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201985984U CN201550270U (en) | 2009-10-19 | 2009-10-19 | Parallel double magnetic circuit and double voice coil strip-shaped loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201985984U CN201550270U (en) | 2009-10-19 | 2009-10-19 | Parallel double magnetic circuit and double voice coil strip-shaped loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201550270U true CN201550270U (en) | 2010-08-11 |
Family
ID=42605453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201985984U Expired - Fee Related CN201550270U (en) | 2009-10-19 | 2009-10-19 | Parallel double magnetic circuit and double voice coil strip-shaped loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201550270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984678A (en) * | 2010-11-18 | 2011-03-09 | 瑞声声学科技(深圳)有限公司 | Sound generator |
| WO2014082295A1 (en) * | 2012-11-30 | 2014-06-05 | Premium Loudspeakers (Hui Zhou) Co., Ltd. | A loudspeaker with two motors and one suspension |
-
2009
- 2009-10-19 CN CN2009201985984U patent/CN201550270U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984678A (en) * | 2010-11-18 | 2011-03-09 | 瑞声声学科技(深圳)有限公司 | Sound generator |
| CN101984678B (en) * | 2010-11-18 | 2016-04-06 | 瑞声声学科技(深圳)有限公司 | Acoustical generator |
| WO2014082295A1 (en) * | 2012-11-30 | 2014-06-05 | Premium Loudspeakers (Hui Zhou) Co., Ltd. | A loudspeaker with two motors and one suspension |
| GB2522814A (en) * | 2012-11-30 | 2015-08-05 | Tymphany Hong Kong Ltd | A loudspeaker with two motors and one suspension |
| GB2522814B (en) * | 2012-11-30 | 2020-07-29 | Tymphany Hong Kong Ltd | A loudspeaker with two motors and one suspension |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20141019 |
|
| EXPY | Termination of patent right or utility model |