CN204442664U - Microspeaker - Google Patents
Microspeaker Download PDFInfo
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- CN204442664U CN204442664U CN201520086530.2U CN201520086530U CN204442664U CN 204442664 U CN204442664 U CN 204442664U CN 201520086530 U CN201520086530 U CN 201520086530U CN 204442664 U CN204442664 U CN 204442664U
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- magnetic circuit
- voice coil
- vibrating diaphragm
- support portion
- microspeaker
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Abstract
The utility model discloses a kind of Microspeaker, relate to electro-acoustic product technical field, comprise magnetic circuit system, vibrational system and the protecgulum as auxiliary system, magnetic circuit system comprises center magnetic path and around magnetic circuit, center magnetic path comprises centring magnet and center washer, annular magnet and annular washer is comprised around magnetic circuit, vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, protecgulum is provided with through hole as passage of speaking, vibrating diaphragm forms the rear operatic tunes near the space of the side of magnetic circuit system, the bight of annular washer is provided with perforate, the passage of speaking of the operatic tunes after being formed, what the position of the corresponding perforate of annular magnet was provided with that material formed dodges unfilled corner, dodge perforate.Microspeaker of the present utility model, can solve the problem of speaking during product work, increases loudness, can increase the volume of magnetic circuit simultaneously, properties of product are more optimized.
Description
Technical field
The utility model relates to electroacoustic field, is specifically related to a kind of Microspeaker.
Background technology
Microspeaker is a kind of is the energy transducer of acoustical signal by transform electrical signals, and being widely used in the terminal equipment such as PC, toy for children, PDA, MP3, is affect the vitals that end product sound puts effect.Along with the fast development of information industry and electron trade, especially consumer is to the lightweight of consumer electronics and communication apparatus, miniaturization and high performance continuous pursuit, and how under the prerequisite not increasing Microspeaker product thickness, optimizing product performance has become an important technology problem as much as possible.
In existing Microspeaker, the passage of speaking of the rear operatic tunes is generally arranged on shell, but, prior art housing is generally that injection moulding is formed, wall is thicker, limit the size of Total Product, and the increase of magnetic circuit volume can cause phonate hole to reduce, thus cause Microspeaker to be spoken having some setbacks.Therefore, be necessary to improve the speak design of passage of existing Microspeaker, while increase magnetic circuit, what ensure Microspeaker goes out sound effective value.
Utility model content
For the problems referred to above, technical problem to be solved in the utility model is: provide a kind of sensitivity higher, go out the good Microspeaker of sound effective value, by to the improvement of Total Product structure and the adjustment of acoustic aperture design, increase magnetic circuit volume, increase the loudness of Microspeaker product simultaneously.
In order to solve the problem, the technical solution of the utility model is:
A kind of Microspeaker, comprises magnetic circuit system, vibrational system and the protecgulum as auxiliary system; Described magnetic circuit system comprises center magnetic path and around magnetic circuit; Described center magnetic path comprises centring magnet and center washer; Describedly comprise annular magnet and annular washer around magnetic circuit; Described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, wherein, described protecgulum is provided with through hole as passage of speaking; Described vibrating diaphragm forms the rear operatic tunes near the space of the side of described magnetic circuit system; The bight of described annular washer is provided with perforate, forms the passage of speaking of the described rear operatic tunes; What the position of the corresponding described perforate of described annular magnet was provided with that material formed dodges unfilled corner, dodges described perforate.
Wherein, the described annular washer body that comprises circular hollow structure and the extension that outwards extends in parallel from four bights of described body; Described perforate is positioned at the bight of described body.
Wherein, support housing is provided with between described annular washer and described vibrating diaphragm; Described support housing comprises four sidewalls; Described four sidewalls surround the hollow region forming annular; The sidewall of described support housing and the extension of described annular washer are fixed; The aperture in the hollow ring region of described support housing is greater than the aperture of described annular washer body, and the orthographic projection of described perforate falls within the scope of the orthographic projection in hollow ring region of described support housing at least partly.
Wherein, described support housing is made up of metal material.
Wherein, described magnetic circuit system is fixed on magnetic conductive board; Described magnetic conductive board is the plate-like structure that horizontal direction extends.
Wherein, the described vibrating diaphragm ring portion that comprises pars intermedia and arrange around described pars intermedia; The upside of described pars intermedia is combined with reinforcement part; Centring disk is provided with between described vibrating diaphragm and described reinforcement part; Described centring disk comprises the inner support portion inside being positioned at and is positioned at the outer support portion in outside and extends to the protuberance of loud speaker outside from described outer support portion; Flexible support arm is surrounded with in the gap in described inner support portion and described outer support portion; The centre position of side, left and right, described inner support portion is provided with internal pads, is electrically connected with the lead-in wire of described voice coil loudspeaker voice coil; Described protuberance is provided with external pads, is electrically connected with external circuit.
Wherein, the bight of described centring disk is provided with location hole, the correspondence position of described support housing is provided with reference column, and described support housing and described centring disk are fixed, and the bight of described vibrating diaphragm correspondence is provided with the avoiding structure of dodging described reference column and described location hole.
Wherein, described vibrating diaphragm has downward depression, and interior outer ledge is fixed with the inner support portion of described centring disk and outer support portion respectively; Described reinforcement part is combined with the inner support portion of described centring disk; Described voice coil loudspeaker voice coil is bonded in the downside of described vibrating diaphragm pars intermedia.
Wherein, be describedly arranged at the periphery of described center magnetic path around magnetic circuit and be that certain distance is arranged with described center magnetic path, form magnetic gap; The end of described voice coil loudspeaker voice coil is suspended in described magnetic gap.
Wherein, described protecgulum lid is connected to the outer support portion of described centring disk.
After have employed technique scheme, the beneficial effects of the utility model are:
Due to Microspeaker of the present utility model, vibrating diaphragm forms the rear operatic tunes near the space of the side of magnetic circuit system, and the bight of annular washer is provided with perforate, as the passage of speaking of the rear operatic tunes, Microspeaker product is operationally spoken smooth and easy, the loudness of product can be increased; Corresponding with the annular magnet that annular washer fixes be provided with expect to be formed dodge unfilled corner, to dodge the perforate for speaking, then the passage of speaking of the rear operatic tunes can be avoided to be blocked by annular magnet, ensure that it is spoken smoothly.
Due to Microspeaker of the present utility model, be provided with support housing between annular washer and vibrating diaphragm, support housing is played a supporting role to vibrating diaphragm, for limiting the distance between vibrating diaphragm and magnetic circuit system; In addition, four sidewalls of support housing surround the hollow region forming annular, the aperture in hollow ring region is greater than the aperture of annular washer body, the orthographic projection of perforate falls within the scope of the orthographic projection in support housing hollow ring region at least partly, and when preventing support housing and annular washer assembly, perforate is blocked completely by the sidewall of support housing.
Due in the utility model, support housing adopts metal material to make, and compared to other materials, is more convenient for ironed, adapts to consumer to the demand of speaker product slimming.
Due in the utility model, the auxiliary system of Microspeaker no longer arranges shell mechanism, solves the restricted problem to Total Product size because shell wall is blocked up; In addition, this kind of loud speaker arranges the magnetic conductive board of rectangular flat shape structure, compared to the existing frame design comprising side wall construction, for magnetic circuit system provides larger accommodation space, the volume of product magnetic circuit can be increased further, improve the performance of Microspeaker.
Owing to being provided with centring disk between vibrating diaphragm and reinforcement part, can position voice coil structure, prevent voice coil loudspeaker voice coil from vibration processes, polarization occurring; The inner support portion of centring disk arranges internal pads, is electrically connected, and arranges external pads with the lead-in wire of voice coil loudspeaker voice coil on the protuberance extending to loud speaker outside, can realize the electric connection with external circuit like this.The bight of centring disk is provided with location hole, the correspondence position of support housing is provided with reference column, support housing and described centring disk are fixed, and the bight of vibrating diaphragm correspondence is provided with the avoiding structure of dodging reference column and location hole, can complete the location of centring disk and support housing smoothly.
Due in the utility model, centring disk is arranged between reinforcement part and vibrating diaphragm, and centring disk is positioned at the top of vibrating diaphragm, and vibrating diaphragm has downward depression, and this structural design has the effect reducing product thickness simultaneously.
In sum, Microspeaker of the present utility model, on the one hand by increasing the volume of magnetic circuit to the improvement of Total Product structure, improves the performance of product; On the other hand by arranging passage of speaking on annular washer, well solving the problem of speaking of Microspeaker, increasing the loudness of product, be suitable for applying within the scope of loud speaker field and other relevant industries.
Accompanying drawing explanation
Fig. 1 is the product back appearance schematic diagram of the utility model Microspeaker;
Fig. 2 is the product front appearance schematic diagram of the utility model Microspeaker;
Fig. 3 is the explosive view after the utility model Microspeaker removes front-cover structure;
Fig. 4 is the utility model Microspeaker oblique cutaway view diagonally;
Fig. 5 is the explosive view of the utility model Microspeaker magnetic structure;
Fig. 6 is the cutaway view of the utility model Microspeaker magnetic structure;
Reference numeral wherein comprises: 1, centring magnet, 2, center washer, 3, annular magnet, 4, annular washer, 41, body, 42, extension, 5, perforate, 6, dodge unfilled corner, 7, support housing, 71, sidewall, 72, reference column, 8, vibrating diaphragm, 81, pars intermedia, 82, ring portion, 83, avoiding structure, 9, reinforcement part, 10, voice coil loudspeaker voice coil, 11, centring disk, 111, inner support portion, 112, outer support portion, 113, support arm, 114, location hole, 115, protuberance, 116, internal pads, 117, external pads, 12, protecgulum, 121, through hole, 13, magnetic conductive board, AA ', the rear operatic tunes is spoken passage.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.
Embodiment:
As Fig. 1-Fig. 5 jointly shown in, Microspeaker of the present utility model, comprise magnetic circuit system, vibrational system and the protecgulum 12 as auxiliary system, magnetic circuit system comprises center magnetic path and around magnetic circuit, center magnetic path comprises centring magnet 1 and center washer 2, comprise annular magnet 3 and annular washer 4 around magnetic circuit, vibrational system comprises vibrating diaphragm 8 and voice coil loudspeaker voice coil 10.As shown in Figure 4, protecgulum 12 is provided with through hole 121 as passage of speaking, vibrating diaphragm forms the rear operatic tunes near the space of the side of magnetic circuit system, the bight of annular washer 4 is provided with perforate 5, the passage AA ' that speaks of the operatic tunes after being formed, the position of the corresponding perforate 5 of annular magnet 3 is provided with dodges unfilled corner 6, dodges perforate 5.
During assembling, annular magnet 3 and annular washer 4 are surrounded on the periphery of centring magnet 1 and center washer 2 respectively and arrange certain distance, form magnetic gap, voice coil loudspeaker voice coil 10 bonding is fixed on the downside of vibrating diaphragm pars intermedia 81, and end is suspended in magnetic gap, when the coil of voice coil loudspeaker voice coil 10 receives the signal of telecommunication that size and Orientation do not wait, voice coil loudspeaker voice coil 10 can do the motion of the reciprocating cutting magnetic line of force in magnetic gap, drive diaphragm oscillations fixing with it, the sound wave that diaphragm oscillations produces can pass through AA ' and be delivered to product outside, thus instigate air sounding, transform electrical signals is acoustical signal the most at last, complete the conversion between electroacoustic.
By technique scheme, perforate 5 is set in the bight of annular washer 4, as the passage of speaking of the rear operatic tunes, the problem of the speaking during work of double magnetic circuit Microspeaker can be solved, increase the loudness of product.
As shown in Figure 5, preferably, annular washer 4 body 41 that comprises circular hollow structure and the extension 42 that outwards extends in parallel from four bights of body 41; Perforate 5 is positioned at the bight of body 41.
As shown in Figure 5, preferably, between annular washer 4 and vibrating diaphragm 8, being provided with support housing 7, for supporting vibrating diaphragm 8, limiting the distance between vibrating diaphragm 8 and magnetic circuit system; Support housing 7 comprises four sidewalls, 71, four sidewalls 71 and surrounds the hollow region forming annular; The sidewall 71 of support housing 7 is fixed with extension 42 gluing of annular washer 4; The aperture in support housing 7 hollow ring region is greater than the aperture of annular washer body 41, the orthographic projection of perforate 5 falls within the scope of the orthographic projection in support housing 7 hollow ring region at least partly, when support housing 7 carries out assembly with annular washer 4, perforate 5 can not be blocked by the sidewall 71 of support housing 7, can ensure that perforate 5 is spoken smooth and easy.
Preferably, support housing 7 is made up of metal material, is convenient to ironed, meets the demand of product slimming.
Preferably, magnetic circuit system is fixed on magnetic conductive board 13, and magnetic conductive board 13 is the plate-like structure of rectangle, for magnetic circuit system provides larger accommodation space, is convenient to increase magnetic circuit volume, optimizes the magnetic property of Microspeaker.
As Fig. 1-Fig. 4 jointly shown in, vibrating diaphragm 8 comprises pars intermedia 81 and is surrounded on the ring portion 82 of pars intermedia 81 periphery, and the upside of pars intermedia 81 is combined with reinforcement part 9, is provided with centring disk 11 between vibrating diaphragm 8 and reinforcement part 9, for positioning voice coil loudspeaker voice coil 10, prevent voice coil loudspeaker voice coil 10 from polarization occurring.Centring disk 11 comprises the inner support portion 111 inside being positioned at and is positioned at the outer support portion 112 in outside and extends to the protuberance 115 of loud speaker outside from outer support portion 112, is surrounded with flexible support arm 113 in the gap in inner support portion 111 and outer support portion 112.Centring disk inner support portion 111 is provided with internal pads 116, is electrically connected with the lead-in wire of voice coil loudspeaker voice coil 10; Protuberance 115 is provided with external pads 117, be electrically connected with external circuit, when protuberance 115 receives the signal of telecommunication of external circuit, the voice coil loudspeaker voice coil 10 be electrically connected with internal pads 116 can be passed to by centring disk 11, make voice coil loudspeaker voice coil 10 produce displacement under the effect of electromagnetic field, drive vibrating diaphragm 8 to vibrate.
Preferably, the bight of centring disk 11 is provided with location hole 114, the correspondence position of support housing 7 arranges reference column 72, support housing 7 and centring disk 11 are by reference column 72 and location hole 114 positioning combination, because vibrating diaphragm 8 is between support housing 7 and centring disk 11, in order to complete the assembly of support housing 7 and centring disk 11 smoothly, the bight correspondence of vibrating diaphragm 8 arranges the avoiding structure 83 of dodging reference column 72 and location hole 114.
Preferably, vibrating diaphragm 8 has downward depression, reduces the thickness of product.The interior outer ledge of vibrating diaphragm 8 is fixed with the inner support portion 111 of centring disk 11 and outer support portion 112 respectively, and reinforcement part 9 is combined with the inner support portion of centring disk.
Preferably, protecgulum 12 lid is connected to the outer support portion 112 of centring disk 11.
These are only the utility model case study on implementation, be not limited to the utility model, as long as those of ordinary skill in the art modify or change according to the equivalence that the utility model institute disclosure is done, all should include in the protection range recorded in claims.
Claims (10)
1. a Microspeaker, comprises magnetic circuit system, vibrational system and the protecgulum as auxiliary system; Described magnetic circuit system comprises center magnetic path and around magnetic circuit; Described center magnetic path comprises centring magnet and center washer; Describedly comprise annular magnet and annular washer around magnetic circuit; Described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, it is characterized in that: described protecgulum is provided with through hole as passage of speaking; Described vibrating diaphragm forms the rear operatic tunes near the space of the side of described magnetic circuit system; The bight of described annular washer is provided with perforate, forms the passage of speaking of the described rear operatic tunes; What the position of the corresponding described perforate of described annular magnet was provided with that material formed dodges unfilled corner, dodges described perforate.
2. Microspeaker according to claim 1, is characterized in that: the body that described annular washer comprises circular hollow structure and the extension outwards extended in parallel from four bights of described body; Described perforate is positioned at the bight of described body.
3. Microspeaker according to claim 1, is characterized in that: be provided with support housing between described annular washer and described vibrating diaphragm; Described support housing comprises four sidewalls; Described four sidewalls surround the hollow region forming annular; The sidewall of described support housing and the extension of described annular washer are fixed; The aperture in the hollow ring region of described support housing is greater than the aperture of described annular washer body, and the orthographic projection of described perforate falls within the scope of the orthographic projection in hollow ring region of described support housing at least partly.
4. Microspeaker according to claim 3, is characterized in that: described support housing is made up of metal material.
5. Microspeaker according to claim 1, is characterized in that: described magnetic circuit system is fixed on magnetic conductive board; Described magnetic conductive board is the plate-like structure that horizontal direction extends.
6. Microspeaker according to claim 1, is characterized in that: the ring portion that described vibrating diaphragm comprises pars intermedia and arranges around described pars intermedia; The upside of described pars intermedia is combined with reinforcement part; Centring disk is provided with between described vibrating diaphragm and described reinforcement part; Described centring disk comprises the inner support portion inside being positioned at and is positioned at the outer support portion in outside and extends to the protuberance of loud speaker outside from described outer support portion; Flexible support arm is surrounded with in the gap in described inner support portion and described outer support portion; The centre position of side, left and right, described inner support portion is provided with internal pads, is electrically connected with the lead-in wire of described voice coil loudspeaker voice coil; Described protuberance is provided with external pads, is electrically connected with external circuit.
7. Microspeaker according to claim 6, it is characterized in that: the bight of described centring disk is provided with location hole, the correspondence position of described support housing is provided with reference column, described support housing and described centring disk are fixed, and the bight of described vibrating diaphragm correspondence is provided with the avoiding structure of dodging described reference column and described location hole.
8. Microspeaker according to claim 6, is characterized in that: described vibrating diaphragm has downward depression, and interior outer ledge is fixed with the inner support portion of described centring disk and outer support portion respectively; Described reinforcement part is combined with the inner support portion of described centring disk; Described voice coil loudspeaker voice coil is bonded in the downside of described vibrating diaphragm pars intermedia.
9. Microspeaker according to claim 1, is characterized in that: be describedly arranged at the periphery of described center magnetic path around magnetic circuit and be that certain distance is arranged with described center magnetic path, forms magnetic gap; The end of described voice coil loudspeaker voice coil is suspended in described magnetic gap.
10. Microspeaker according to claim 6, is characterized in that: described protecgulum lid is connected to the outer support portion of described centring disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086530.2U CN204442664U (en) | 2015-02-06 | 2015-02-06 | Microspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086530.2U CN204442664U (en) | 2015-02-06 | 2015-02-06 | Microspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204442664U true CN204442664U (en) | 2015-07-01 |
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ID=53610474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520086530.2U Active CN204442664U (en) | 2015-02-06 | 2015-02-06 | Microspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204442664U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704626A (en) * | 2016-03-29 | 2016-06-22 | 歌尔声学股份有限公司 | Ultrathin loudspeaker module |
| CN112153502A (en) * | 2020-08-27 | 2020-12-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN114125663A (en) * | 2020-08-25 | 2022-03-01 | 华为技术有限公司 | Electroacoustic transducer, loudspeaker module and electronic equipment |
| CN117939373A (en) * | 2024-03-25 | 2024-04-26 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
-
2015
- 2015-02-06 CN CN201520086530.2U patent/CN204442664U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704626A (en) * | 2016-03-29 | 2016-06-22 | 歌尔声学股份有限公司 | Ultrathin loudspeaker module |
| CN114125663A (en) * | 2020-08-25 | 2022-03-01 | 华为技术有限公司 | Electroacoustic transducer, loudspeaker module and electronic equipment |
| CN112153502A (en) * | 2020-08-27 | 2020-12-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN117939373A (en) * | 2024-03-25 | 2024-04-26 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |