CN103209376B - Microspeaker - Google Patents
Microspeaker Download PDFInfo
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- CN103209376B CN103209376B CN201310087084.2A CN201310087084A CN103209376B CN 103209376 B CN103209376 B CN 103209376B CN 201310087084 A CN201310087084 A CN 201310087084A CN 103209376 B CN103209376 B CN 103209376B
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- vibrating diaphragm
- composite bed
- diaphragm body
- binder course
- described vibrating
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Abstract
The invention discloses a kind of Microspeaker, involving vibrations system, magnetic circuit system, and the housing of the fixing described vibrational system of collecting and magnetic circuit system; Described vibrational system comprises vibrating diaphragm assembly, described vibrating diaphragm assembly comprises vibrating diaphragm body and is incorporated into the composite bed of rigidity of described vibrating diaphragm body center, wherein, described vibrating diaphragm body is silastic material, described composite bed is combined with the injection moulding of described vibrating diaphragm body, described vibrating diaphragm body surrounds described composite bed and arranges, and the upper surface of described composite bed and lower surface is all coated with the binder course of silastic material.This composite bed can ensure by the mode of injection moulding secure bond the stability that composite bed is combined with vibrating diaphragm body with vibrating diaphragm body, simplifies product forming technique, improves production efficiency, improves the consistency of product.
Description
Technical field
The present invention relates to electroacoustic field, be specifically related to a kind of Microspeaker.
Background technology
The Microspeaker be widely used in portable electron device generally includes vibrational system, magnetic circuit system and housing, vibrational system comprises vibrating diaphragm and is incorporated into the voice coil loudspeaker voice coil on the downside of vibrating diaphragm, voice coil loudspeaker voice coil is arranged in magnetic circuit system, drives vibrating diaphragm up-down vibration to produce sound in the course of work by voice coil loudspeaker voice coil.Traditional structure vibrating diaphragm generally includes the vibrating diaphragm body (or ring portion) formed by flexible material, and is incorporated into the composite bed of rigidity of its center, and the composite bed of rigidity is conducive to the high frequency characteristics improving vibrating diaphragm, improves the acoustical behavior of product.But the Microspeaker of this structure, composite bed and vibrating diaphragm body are generally independently parts, usually by being coated with the mode secure bond of glue bond between composite bed and vibrating diaphragm body, because the thickness of the thickness of glue-line, composite bed thickness and vibrating diaphragm body can exist certain error in forming process, therefore, the consistency of product is poor.Further, because composite bed and vibrating diaphragm body are shaping separately, and then be integrated by the mode secure bond of gluing, complex process, be unfavorable for enhancing productivity.Therefore, be necessary to improve the Microspeaker of this structure, to avoid above-mentioned defect.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of Microspeaker, the moulding process of product can be simplified, enhance productivity, improve the consistency of product.
To achieve these goals, the invention provides a kind of Microspeaker, involving vibrations system, magnetic circuit system, and the housing of the fixing described vibrational system of collecting and magnetic circuit system; Described vibrational system comprises vibrating diaphragm assembly, described vibrating diaphragm assembly comprises vibrating diaphragm body and is incorporated into the composite bed of rigidity of described vibrating diaphragm body center, wherein, described vibrating diaphragm body is silastic material, described composite bed is combined with the injection moulding of described vibrating diaphragm body, described vibrating diaphragm body surrounds described composite bed and arranges, and the upper surface of described composite bed and lower surface is all coated with the binder course of silastic material.
In addition, preferred scheme is, described vibrating diaphragm body comprises the ball top at center and the ring portion at edge, and described composite bed is plate-like structure, and described composite bed injection moulding is incorporated into place, described ball top part.
In addition, preferred scheme is, the mid portion of the described binder course of composite bed upper surface and/or the binder course of lower surface is provided with the openend of material formation, and the binder course of upper surface and lower surface all can cover the marginal portion of described composite bed upper surface and lower surface.
In addition, preferred scheme is, described silicon rubber is fluid silicone rubber.
In addition, preferred scheme is, described vibrating diaphragm assembly also comprises the plastic supporting pieces being incorporated into described vibrating diaphragm body edge, and described plastic supporting pieces and described vibrating diaphragm body are by injection molding manner secure bond.
In addition, preferred scheme is, the thickness of described strutting piece is greater than the thickness of described vibrating diaphragm body.
After adopting technique scheme, compared with traditional structure, this composite bed can ensure by the mode of injection moulding secure bond the stability that composite bed is combined with vibrating diaphragm body with vibrating diaphragm body, simplifies product forming technique, improve production efficiency, improve the consistency of product.
Accompanying drawing explanation
By below in conjunction with accompanying drawing, present invention is described, above-mentioned characteristic sum technological merit of the present invention will become apparent and easy understand.
Fig. 1 is the cutaway view of the embodiment of the present invention one Microspeaker.
Fig. 2 is the stereogram of the embodiment of the present invention one vibrating diaphragm assembly.
Fig. 3 is the A-A profile of the assembly of vibrating diaphragm shown in Fig. 2.
Fig. 4 is the stereo decomposing structural representation of the embodiment of the present invention two vibrating diaphragm assembly.
Fig. 5 is the stereo decomposing structural representation of the embodiment of the present invention two.
Fig. 6 is the B-B profile of the assembly of vibrating diaphragm shown in Fig. 5.
Fig. 7 is the stereo decomposing structural representation of the embodiment of the present invention three.
Fig. 8 is the profile of vibrating diaphragm assembly shown in the embodiment of the present invention three.
Embodiment
Below in conjunction with the drawings and specific embodiments, further detailed description is done to the present invention.
Embodiment one: as shown in Figure 1 to Figure 3, Microspeaker involving vibrations system, magnetic circuit system, and the housing 4 of the fixing vibrational system of collecting and magnetic circuit system; Wherein, the voice coil loudspeaker voice coil 2 that vibrational system comprises vibrating diaphragm assembly 1 and is incorporated on the downside of vibrating diaphragm assembly 1, magnetic circuit system comprises the washer 31, magnet 32 and the magnetic conduction frame 33 that from top to bottom combine successively, magnetic circuit system forms the magnetic gap of collecting voice coil loudspeaker voice coil 2, after connecting the signal of telecommunication in voice coil loudspeaker voice coil 2, voice coil loudspeaker voice coil 2 by the effect up-down vibration of Ampere force, can drive vibrating diaphragm assembly 1 to vibrate further and form sound in the magnetic field that magnetic circuit system is formed.
Wherein, vibrating diaphragm assembly 1 comprises vibrating diaphragm body 11, is incorporated into the composite bed 12 of vibrating diaphragm body 11 center, and is incorporated into the plastic supporting pieces 13 at vibrating diaphragm body 11 edge, as shown in Figures 2 and 3.The present embodiment vibrating diaphragm body 11 is injection molded by silastic material, because traditional structure vibrating diaphragm body is generally sandwich construction, the thickness of every layer has again certain error, therefore the conforming raising of vibrating diaphragm is unfavorable for, and only have one deck by the vibrating diaphragm body 11 of mold injection molding, and required acoustical behavior can be met, therefore just avoid the defect of the vibrating diaphragm consistency difference that sandwich construction causes, be conducive to the consistency improving vibrating diaphragm.In addition, vibrating diaphragm body 1 adopts silastic material to be conducive to being combined with the injection moulding of miscellaneous part, in the present embodiment, namely vibrating diaphragm body 1 and plastic supporting pieces pass through the mode secure bond of injection moulding, due to silastic material vibrating diaphragm directly with housing 4 by the mode that bonds in conjunction with time silicon rubber material softer and be easily out of shape, be unfavorable for the strong bonded of vibrating diaphragm body 1 and housing 4, and after being combined with plastic supporting pieces injection moulding, be conducive to the maintenance of vibrating diaphragm shape, and be convenient to the strong bonded with housing 4.The mode such as non-adherent is combined by injection moulding for the vibrating diaphragm body 11 of silastic material and plastic supporting pieces 13, is also conducive to improving the firmness of vibrating diaphragm body 11 and plastic supporting pieces 13 secure bond.Preferably, the thickness of plastic supporting pieces 13 is greater than the thickness of vibrating diaphragm body 11, so that increase the bonded area between vibrating diaphragm body 11 and plastic supporting pieces, improves in conjunction with fastness.In addition, four bights of strutting piece 13 are also provided with four location holes 131, and in forming process, first by being positioned through location hole 131 pairs of strutting pieces 13 by column structure, silicone rubber compounds of then annotating forms vibrating diaphragm body 11.
In addition, vibrating diaphragm body of the present invention 11 and composite bed 12 are also by the mode secure bond of injection moulding.Vibrating diaphragm body 11 comprises the ball top being positioned at center and the ring portion arranged around ball top, wherein, the present embodiment ball top 11 is planar structure, and it is plate-like structure that composite bed 12 is incorporated on ball top, the present embodiment composite bed 12 and the mode secure bond of ball top 11 by injection moulding.Preferably, vibrating diaphragm body 11 can surround composite bed 12, is provided with silastic material, as shown in Figures 2 and 3 in the upper side and lower side of composite bed 12, the upper side of composite bed 12 is provided with the binder course 111 of silastic material, and downside is provided with the binder course 112 of silastic material.
This composite bed 12 can ensure by the mode of injection moulding secure bond the stability that composite bed 12 is combined with vibrating diaphragm body 11 with vibrating diaphragm body 11; In addition, vibrating diaphragm body 11 is single layer structure, vibrating diaphragm body 11 is combined with composite bed 12 injection moulding, can be controlled the integral thickness of whole vibrating diaphragm body 11 and composite bed 12, thus improve the consistency of vibrating diaphragm assembly by the thickness of mould control vibrating diaphragm body 11.In addition, compared to the mode of composite bed 11 with vibrating diaphragm body adhesive bond, the mode that this composite bed 12 and vibrating diaphragm body 11 directly combine can simplify the moulding process of product, improves the production efficiency of product.Preferably, the present invention adopts fluid silicone rubber, and fluid silicone rubber is good fluidity compared with conventional silicone rubber, and sulfuration is fast, is easy to injection mo(u)lding.
Embodiment two: as shown in Figures 4 to 6, the present embodiment vibrating diaphragm assembly comprises vibrating diaphragm body 11, composite bed 12, and plastic supporting pieces 13, wherein vibrating diaphragm body 11 is silastic material, vibrating diaphragm body 11 and composite bed 12 injection moulding are incorporated into intermediate position, and the edge of vibrating diaphragm body 11 is combined with plastic supporting pieces 13 injection moulding; Vibrating diaphragm body 11 surrounds composite bed 12, and the upside of composite bed 12 is provided with binder course 111 ', and the downside of composite bed 12 is provided with binder course 112.The present embodiment and embodiment one difference are, the mid portion of the binder course 111 ' on the upside of composite bed 12 is provided with the openend of material formation, and make composite bed 12 be exposed to the surface of vibrating diaphragm body 11 by openend, the structure of binder course 112 is with embodiment one.This structure that openend is set on binder course 111 ', vibrating diaphragm assembly 1 can be made to have cut binder course 111 in embodiment one and to correspond to the weight of openend, thus reduce the overall weight of vibrating diaphragm assembly 1, thus improve the sensitivity of vibrating diaphragm body 11 vibration, be easy to the acoustical behavior improving product.Preferably, after binder course 111 ' goes material to form openend, binder course 111 ' at least can cover the marginal portion of composite bed 12 upper surface, thus vibrating diaphragm body 11 firmly can be combined with composite bed 12.
In addition, the present embodiment is not limited to said structure, binder course 112 on the downside of composite bed 12 also can go material to form openend at mid portion, the structure of binder course 111 is with embodiment one, this structure also can reduce the weight of vibrating diaphragm assembly 1, be conducive to the sensitivity improving the vibration of vibrating diaphragm body 11, improve product acoustical behavior.Same binder course 112 at least can cover the marginal portion of composite bed 12 lower surface after going material to form openend.
Embodiment three: as shown in Figure 7 and Figure 8, the main distinction of the present embodiment and above-described embodiment is, the mid portion of the binder course 111 ' of composite bed 12 upper surface and the binder course 112 ' of lower surface is equipped with the openend of material formation, this structure can reduce the weight of vibrating diaphragm assembly further, improve the sensitivity of diaphragm oscillations, improve product acoustical behavior.Equally, binder course 111 ' and binder course 112 ' at least can cover the upper surface of composite bed 12 and the marginal portion of lower surface after removing material respectively, thus ensure the firmness that composite bed 12 and vibrating diaphragm body 11 combine.
Under above-mentioned instruction of the present invention; those skilled in the art can carry out other improvement and distortion on the basis of above-described embodiment; and these improve and distortion; all drop in protection scope of the present invention; those skilled in the art should be understood that; above-mentioned specific descriptions just better explain object of the present invention, and protection scope of the present invention is by claim and equivalents thereof.
Claims (6)
1. a Microspeaker, involving vibrations system, magnetic circuit system, and the housing of the fixing described vibrational system of collecting and magnetic circuit system; Described vibrational system comprises vibrating diaphragm assembly, described vibrating diaphragm assembly comprises vibrating diaphragm body and is incorporated into the composite bed of rigidity of described vibrating diaphragm body center, it is characterized in that, described vibrating diaphragm body is silastic material, described composite bed is combined with the injection moulding of described vibrating diaphragm body, described vibrating diaphragm body surrounds described composite bed and arranges, and the upper surface of described composite bed and lower surface is all coated with the binder course of silastic material.
2. Microspeaker according to claim 1, is characterized in that, described vibrating diaphragm body comprises the ball top at center and the ring portion at edge, and described composite bed is plate-like structure, and described composite bed injection moulding is incorporated into place, described ball top part.
3. Microspeaker according to claim 2, it is characterized in that, the mid portion of the described binder course of composite bed upper surface and/or the binder course of lower surface is provided with the openend of material formation, and the binder course of upper surface and lower surface all can cover the marginal portion of described composite bed upper surface and lower surface.
4. the Microspeaker according to the arbitrary claim of claims 1 to 3, is characterized in that, described silicon rubber is fluid silicone rubber.
5. Microspeaker according to claim 4, is characterized in that, described vibrating diaphragm assembly also comprises the plastic supporting pieces being incorporated into described vibrating diaphragm body edge, and described plastic supporting pieces and described vibrating diaphragm body are by injection molding manner secure bond.
6. Microspeaker according to claim 5, is characterized in that, the thickness of described strutting piece is greater than the thickness of described vibrating diaphragm body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310087084.2A CN103209376B (en) | 2013-03-19 | 2013-03-19 | Microspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310087084.2A CN103209376B (en) | 2013-03-19 | 2013-03-19 | Microspeaker |
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| Publication Number | Publication Date |
|---|---|
| CN103209376A CN103209376A (en) | 2013-07-17 |
| CN103209376B true CN103209376B (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310087084.2A Active CN103209376B (en) | 2013-03-19 | 2013-03-19 | Microspeaker |
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| CN (1) | CN103209376B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104703099A (en) * | 2013-12-06 | 2015-06-10 | 宁波升亚电子有限公司 | High temperature resisting tympan structure, high temperature resisting horn and manufacture method of high temperature resisting tympan structure |
| CN204498359U (en) | 2015-03-21 | 2015-07-22 | 歌尔声学股份有限公司 | Vibrating diaphragm assembly and be provided with the loud speaker of this vibrating diaphragm assembly |
| CN104811869B (en) | 2015-04-14 | 2018-12-21 | 歌尔股份有限公司 | A kind of vibrating diaphragm and a kind of vibrating diaphragm packaging technology |
| CN106231506A (en) * | 2016-09-29 | 2016-12-14 | 歌尔股份有限公司 | Vibrating diaphragm and be provided with the minitype acoustic generator of this vibrating diaphragm |
| CN111654790A (en) * | 2020-06-29 | 2020-09-11 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| CN111683326B (en) * | 2020-07-09 | 2021-05-28 | 江西台德智慧科技有限公司 | But linear motion vibrating diaphragm and artificial intelligence audio amplifier |
| CN112770229B (en) * | 2020-12-30 | 2023-01-24 | 歌尔股份有限公司 | Loudspeaker, manufacturing method of vibrating plate structure of loudspeaker and electronic terminal |
Citations (6)
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| CN2465430Y (en) * | 2001-01-22 | 2001-12-12 | 美隆电器厂股份有限公司 | Improvement for vibration membrane of loudspeaker |
| CN201234338Y (en) * | 2008-07-12 | 2009-05-06 | 歌尔声学股份有限公司 | Micro moving coil type electro-acoustic converter vibration system |
| CN102300142A (en) * | 2010-06-25 | 2011-12-28 | 安桥株式会社 | Loudspeaker diaphragm and loudspeaker including the loudspeaker diaphragm |
| CN202103837U (en) * | 2011-05-13 | 2012-01-04 | 富港电子(昆山)有限公司 | Enhanced passive radiator |
| CN102438196A (en) * | 2011-12-31 | 2012-05-02 | 宁波升亚电子有限公司 | Loudspeaker and manufacturing method thereof |
| CN203193869U (en) * | 2013-03-19 | 2013-09-11 | 歌尔声学股份有限公司 | Miniature loudspeaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60227487D1 (en) * | 2001-02-26 | 2008-08-21 | Uetax Corp | SPEAKER |
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2013
- 2013-03-19 CN CN201310087084.2A patent/CN103209376B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465430Y (en) * | 2001-01-22 | 2001-12-12 | 美隆电器厂股份有限公司 | Improvement for vibration membrane of loudspeaker |
| CN201234338Y (en) * | 2008-07-12 | 2009-05-06 | 歌尔声学股份有限公司 | Micro moving coil type electro-acoustic converter vibration system |
| CN102300142A (en) * | 2010-06-25 | 2011-12-28 | 安桥株式会社 | Loudspeaker diaphragm and loudspeaker including the loudspeaker diaphragm |
| CN202103837U (en) * | 2011-05-13 | 2012-01-04 | 富港电子(昆山)有限公司 | Enhanced passive radiator |
| CN102438196A (en) * | 2011-12-31 | 2012-05-02 | 宁波升亚电子有限公司 | Loudspeaker and manufacturing method thereof |
| CN203193869U (en) * | 2013-03-19 | 2013-09-11 | 歌尔声学股份有限公司 | Miniature loudspeaker |
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| CN103209376A (en) | 2013-07-17 |
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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. |