CN203193869U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN203193869U CN203193869U CN 201320124109 CN201320124109U CN203193869U CN 203193869 U CN203193869 U CN 203193869U CN 201320124109 CN201320124109 CN 201320124109 CN 201320124109 U CN201320124109 U CN 201320124109U CN 203193869 U CN203193869 U CN 203193869U
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- China
- Prior art keywords
- vibrating diaphragm
- composite bed
- diaphragm body
- binder course
- microspeaker
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Abstract
The utility model discloses a miniature speaker comprising a vibration system, a magnetic circuit system and a shell used for accommodating and fixing the vibration system and the magnetic circuit system. The vibration system includes a vibration film assembly which is composed of a vibration film body part and a rigid composite layer combined to the center of the vibration film body part, wherein the vibration film body part is made of silicon rubber material, the composite layer and the vibration film body part are combined through injection molding, the vibration film body part surrounds the composite layer, and the upper and lower surfaces of the composite layer are coated with combination layers made of silicon rubber material. Due to the adoption of the method in which the composite layer and the vibration film body part are combined through injection molding, stability of combination between the composite layer and the vibration film body part is ensured, the product molding process is simplified, the production efficiency of the product is improved, and the product consistency is improved.
Description
Technical field
The utility model relates to the electroacoustic field, is specifically related to a kind of Microspeaker.
Background technology
The Microspeaker that is widely used in the 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 of vibrating diaphragm downside, voice coil loudspeaker voice coil is arranged in the magnetic circuit system, drives the vibrating diaphragm up-down vibration by voice coil loudspeaker voice coil in the course of work and produces sound.The traditional structure vibrating diaphragm generally includes the vibrating diaphragm body (or ring portion) that is formed by flexible material, and the composite bed that is incorporated into the rigidity of its center, and the composite bed of rigidity is conducive to improve the high frequency characteristics of vibrating diaphragm, improves the acoustical behavior of product.But the Microspeaker of this structure, composite bed and vibrating diaphragm body are generally independently parts, common by being coated with the mode secure bond of glue bond between composite bed and the vibrating diaphragm body, because can there be certain error in the thickness of thickness, composite bed thickness and the vibrating diaphragm body of glue-line in forming process, therefore, consistency of product is poor.And, because composite bed and vibrating diaphragm body are independent moulding, and then be one by the mode secure bond of gluing, complex process is unfavorable for enhancing productivity.Therefore, be necessary the Microspeaker of this structure is improved, to avoid above-mentioned defective.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of Microspeaker, can simplify the moulding process of product, enhances productivity, and improves consistency of product.
To achieve these goals, the utility model provides a kind of Microspeaker, involving vibrations system, magnetic circuit system, and the housing of accommodating fixing described vibrational system and magnetic circuit system; Described vibrational system comprises the vibrating diaphragm assembly, described vibrating diaphragm assembly comprises the vibrating diaphragm body and is incorporated into the composite bed of the 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 setting, all is coated with the binder course of silastic material on the upper surface of described composite bed and the lower surface.
In addition, preferably scheme is, described vibrating diaphragm body comprises the ring portion at ball top and the edge at center, 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 binder course of described composite bed upper surface and/or the binder course of lower surface is provided with expects the openend that forms, 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 that described silicon rubber is fluid silicone rubber.
In addition, preferably scheme is, described vibrating diaphragm assembly also comprises the plastic supporting pieces that is incorporated into described vibrating diaphragm body edge, and described plastic supporting pieces and described vibrating diaphragm body are by injection moulding mode secure bond.
In addition, preferred scheme is that the thickness of described strutting piece is greater than the thickness of described vibrating diaphragm body.
After adopting technique scheme, compare with traditional structure, this composite bed and vibrating diaphragm body can guarantee the stability that composite bed is combined with the vibrating diaphragm body by the mode of injection moulding secure bond, simplify product forming technique, improve production efficient, improve consistency of product.
Description of drawings
By below in conjunction with accompanying drawing the utility model being described, above-mentioned feature of the present utility model and technological merit will become apparent and understand easily.
Fig. 1 is the cutaway view of the utility model embodiment one Microspeaker.
Fig. 2 is the stereogram of the utility model embodiment one vibrating diaphragm assembly.
Fig. 3 is the A-A profile of vibrating diaphragm assembly shown in Figure 2.
Fig. 4 is the three-dimensional decomposition texture schematic diagram of the utility model embodiment two vibrating diaphragm assemblies.
Fig. 5 is the three-dimensional decomposition texture schematic diagram of the utility model embodiment two.
Fig. 6 is the B-B profile of vibrating diaphragm assembly shown in Figure 5.
Fig. 7 is the three-dimensional decomposition texture schematic diagram of the utility model embodiment three.
Fig. 8 is the profile of vibrating diaphragm assembly shown in the utility model embodiment three.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done further detailed description.
Embodiment one: as shown in Figure 1 to Figure 3, Microspeaker involving vibrations system, magnetic circuit system, and accommodate the fixedly housing 4 of vibrational system and magnetic circuit system; Wherein, vibrational system comprises vibrating diaphragm assembly 1 and is incorporated into the voice coil loudspeaker voice coil 2 of vibrating diaphragm assembly 1 downside, magnetic circuit system comprises from top to bottom washer 31, magnet 32 and the magnetic conduction basin frame 33 of combination successively, magnetic circuit system forms the magnetic gap of accommodating voice coil loudspeaker voice coil 2, after connecting the signal of telecommunication in the voice coil loudspeaker voice coil 2, voice coil loudspeaker voice coil 2 is subjected to the effect up-down vibration of Ampere force in the magnetic field that magnetic circuit system forms, further can drive 1 vibration of vibrating diaphragm assembly and form sound.
Wherein, vibrating diaphragm assembly 1 comprises vibrating diaphragm body 11, is incorporated into the composite bed 12 of vibrating diaphragm body 11 centers, and the plastic supporting pieces 13 that is incorporated into vibrating diaphragm body 11 edges, as shown in Figures 2 and 3.Present embodiment vibrating diaphragm body 11 is injection molded by silastic material, because traditional structure vibrating diaphragm body is generally sandwich construction, every layer thickness has certain error again, therefore be unfavorable for the conforming raising of vibrating diaphragm, and have only one deck by the vibrating diaphragm body 11 of mold injection molding, therefore and can satisfy required acoustical behavior, just avoid the defective of the vibrating diaphragm consistency difference that sandwich construction causes, be conducive to improve the consistency of vibrating diaphragm.In addition, vibrating diaphragm body 1 adopts silastic material to be conducive to be combined with the injection moulding of miscellaneous part, in the present embodiment, vibrating diaphragm body 1 and plastic supporting pieces namely pass through the injection molding way secure bond, because the vibrating diaphragm of silastic material is the softer and easy deformation of silicon rubber material when housing 4 is combined by the mode of bonding directly, the strong bonded that is unfavorable for vibrating diaphragm body 1 and housing 4, and after the plastic supporting pieces injection moulding is combined, be conducive to the maintenance of vibrating diaphragm shape, and be convenient to the strong bonded with housing 4.The vibrating diaphragm body 11 of silastic material and plastic supporting pieces 13 by injection moulding but not modes such as bonding be combined, also be conducive to improve the firm degree 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 the bonded area between increase vibrating diaphragm body 11 and the plastic supporting pieces improves in conjunction with fastness.In addition, four bights of strutting piece 13 also are provided with four location holes 131, in the forming process, at first position by column structure being passed 131 pairs of strutting pieces 13 of location hole, and the silicone rubber compounds of annotating then forms vibrating diaphragm body 11.
In addition, the utility model vibrating diaphragm body 11 and composite bed 12 are also by the injection molding way secure bond.Vibrating diaphragm body 11 comprises the ball top that is positioned at the center and the ring portion that arranges around the ball top, wherein, present embodiment ball top 11 is planar structure, and composite bed 12 is incorporated into and is plate-like structure on the ball top, and present embodiment composite bed 12 passes through the injection molding way secure bond with ball top 11.Preferably, vibrating diaphragm body 11 can surround composite bed 12, is provided with silastic material at upside and the downside of composite bed 12, as shown in Figures 2 and 3, 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 and vibrating diaphragm body 11 can guarantee the stability of composite bed 12 and 11 combinations of vibrating diaphragm body by the mode of injection moulding secure bond; In addition, vibrating diaphragm body 11 is single layer structure, vibrating diaphragm body 11 is combined with composite bed 12 injection mouldings, can control the integral thickness of whole vibrating diaphragm body 11 and composite bed 12 by the thickness of mould control vibrating diaphragm body 11, thereby improve the consistency of vibrating diaphragm assembly.In addition, than the mode of composite bed 11 with vibrating diaphragm body adhesive bond, the mode of this composite bed 12 and the 11 direct combinations of vibrating diaphragm body can be simplified the moulding process of product, improves production efficiency of products.Preferably, the utility model adopts fluid silicone rubber, and fluid silicone rubber is compared good fluidity with conventional silicon rubber, and sulfuration is fast, is easy to injection mo(u)lding.
Embodiment two: extremely shown in Figure 6 as Fig. 4, 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 is incorporated into its middle position with composite bed 12 injection mouldings, is combined with plastic supporting pieces 13 injection mouldings in the edge of vibrating diaphragm body 11; 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.Present embodiment and embodiment one difference be, the mid portion of the binder course 111 ' of composite bed 12 upsides is provided with expects the openend that forms, makes composite bed 12 be exposed to the surface of vibrating diaphragm body 11 by openend, and the structure of binder course 112 is with embodiment one.This structure that openend is set at binder course 111 ', can make vibrating diaphragm assembly 1 cut among the embodiment one binder course 111 corresponding to the weight of openend, thereby reduced the overall weight of vibrating diaphragm assembly 1, thereby improved the sensitivity of vibrating diaphragm body 11 vibrations, be easy to improve the acoustical behavior of product.Preferably, after binder course 111 ' went material to form openend, binder course 111 ' can cover the marginal portion of composite bed 12 upper surfaces at least, thus make vibrating diaphragm body 11 can with the firm combination of composite bed 12.
In addition, present embodiment is not limited to said structure, the binder course 112 of composite bed 12 downsides 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 improve the sensitivity of vibrating diaphragm body 11 vibrations, improve the product acoustical behavior.After same binder course 112 goes material to form openend, can cover the marginal portion of composite bed 12 lower surfaces at least.
Embodiment three: as shown in Figure 7 and Figure 8, the main distinction of present embodiment and above-described embodiment is, the mid portion of the binder course 111 ' of composite bed 12 upper surfaces and the binder course 112 ' of lower surface is equipped with expects the openend that forms, this structure can further reduce the weight of vibrating diaphragm assembly, improve the sensitivity of vibrating diaphragm vibration, improve the product acoustical behavior.Equally, can cover the marginal portion of upper surface and the lower surface of composite bed 12 after binder course 111 ' and binder course 112 ' go to expect at least respectively, thereby guarantee the firm degree of composite bed 12 and 11 combinations of vibrating diaphragm body.
Under above-mentioned instruction of the present utility model; those skilled in the art can be in his improvement of the basic enterprising Xingqi of above-described embodiment and distortion; and these improvement and distortion; all drop in the protection range of the present utility model; those skilled in the art should be understood that; above-mentioned specific descriptions are just better explained the purpose of this utility model, and protection range of the present utility model is limited by claim and equivalent thereof.
Claims (6)
1. Microspeaker, involving vibrations system, magnetic circuit system, and the housing of accommodating fixing described vibrational system and magnetic circuit system; Described vibrational system comprises the vibrating diaphragm assembly, described vibrating diaphragm assembly comprises the vibrating diaphragm body and is incorporated into the composite bed of the 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 setting, all is coated with the binder course of silastic material on the upper surface of described composite bed and the lower surface.
2. Microspeaker according to claim 1 is characterized in that, described vibrating diaphragm body comprises the ring portion at ball top and the edge at center, 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 binder course of described composite bed upper surface and/or the binder course of lower surface is provided with expects the openend that forms, 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. according to the described Microspeaker of the arbitrary claim of claim 1 to 3, it 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 that is incorporated into described vibrating diaphragm body edge, and described plastic supporting pieces and described vibrating diaphragm body are by injection moulding mode 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 |
|---|---|---|---|
| CN 201320124109 CN203193869U (en) | 2013-03-19 | 2013-03-19 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124109 CN203193869U (en) | 2013-03-19 | 2013-03-19 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203193869U true CN203193869U (en) | 2013-09-11 |
Family
ID=49110691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320124109 Expired - Lifetime CN203193869U (en) | 2013-03-19 | 2013-03-19 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203193869U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103209376A (en) * | 2013-03-19 | 2013-07-17 | 歌尔声学股份有限公司 | Mini-type loudspeaker |
| WO2016150173A1 (en) * | 2015-03-24 | 2016-09-29 | 歌尔声学股份有限公司 | Vibrating diaphragm assembly |
| CN109218926A (en) * | 2017-07-07 | 2019-01-15 | 迪芬尼香港有限公司 | The suspension and loudspeaker of coil-moving speaker |
-
2013
- 2013-03-19 CN CN 201320124109 patent/CN203193869U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103209376A (en) * | 2013-03-19 | 2013-07-17 | 歌尔声学股份有限公司 | Mini-type loudspeaker |
| CN103209376B (en) * | 2013-03-19 | 2015-11-11 | 歌尔声学股份有限公司 | Microspeaker |
| WO2016150173A1 (en) * | 2015-03-24 | 2016-09-29 | 歌尔声学股份有限公司 | Vibrating diaphragm assembly |
| US10178477B2 (en) | 2015-03-24 | 2019-01-08 | Goertek Inc. | Vibrating diaphragm assembly |
| CN109218926A (en) * | 2017-07-07 | 2019-01-15 | 迪芬尼香港有限公司 | The suspension and loudspeaker of coil-moving speaker |
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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. |