CN204616077U - Silica gel vibrating diaphragm - Google Patents

Silica gel vibrating diaphragm Download PDF

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Publication number
CN204616077U
CN204616077U CN201520236652.5U CN201520236652U CN204616077U CN 204616077 U CN204616077 U CN 204616077U CN 201520236652 U CN201520236652 U CN 201520236652U CN 204616077 U CN204616077 U CN 204616077U
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silica gel
hardness
vibrating diaphragm
reinforcement
ring
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CN201520236652.5U
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Chinese (zh)
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刘春发
郭晓冬
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Goertek Inc
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Goertek Inc
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Abstract

The utility model discloses a kind of silica gel vibrating diaphragm, comprise pars intermedia and the ring portion being surrounded on pars intermedia periphery, the pars intermedia of silica gel vibrating diaphragm is combined with reinforcement part, silica gel vibrating diaphragm comprises the silica gel of two kinds or two or more hardness, ring portion is different from the hardness of reinforcement part, and the hardness of reinforcement part is greater than the hardness in ring portion, the silica gel of different hardness is combined closely, injection moulding sulfidization molding.Silica gel vibrating diaphragm of the present utility model, corresponding according to vibrating diaphragm zones of different and acoustical behavior, the silica gel of different hardness is selected in doubling ring portion and reinforcement part, can take into account the acoustics index of low frequency and high frequency treatment simultaneously, improve properties of product.

Description

Silica gel vibrating diaphragm
Technical field
The utility model relates to electroacoustic field, is specifically related to a kind of silica gel vibrating diaphragm.
Background technology
Vibrating diaphragm is the part of speaker vibration system, is the vitals realizing electroacoustic conversion.Put effect to improve sound, the performance of optimizing product, people have all made many trials and exploration in the structure, material etc. of vibrating diaphragm, and the application of silica gel vibrating diaphragm is exactly an illustration.
Silica gel material itself is more liquid, and there is wider Acclimation temperature scope, when speaker operation, vibrating diaphragm is not easy to deform because of variations in temperature, can ensure the performance of loud speaker better, mechanical performance is comparatively strong in addition, and compliance is also better, contribute to improving vibrating diaphragm performance, therefore silica gel vibrating diaphragm also receives publicity.Existing silica gel vibrating diaphragm, normally by the silica gel injection moulding sulfidization molding of liquid state, and mostly be a kind of hardness, thus the silica gel vibrating diaphragm after shaping is a kind of hardness, due to the acoustics index of the corresponding different frequency that vibrating diaphragm zones of different is fixed, therefore its acoustical behavior can only be adjusted by the thickness of vibrating diaphragm, but the adjustment of vibrating diaphragm thickness is by mould capabilities limits, so cause this kind of adjustment very limited.
For above problem, be necessary that the composition to forming silica gel vibrating diaphragm improves, to improve the performance of silica gel vibrating diaphragm.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of silica gel vibrating diaphragm, by the adjustment of the silica gel hardness to formation silica gel vibrating diaphragm, improves the performance of silica gel vibrating diaphragm.
To achieve these goals, the utility model by the following technical solutions: a kind of silica gel vibrating diaphragm, comprises pars intermedia and the ring portion being surrounded on described pars intermedia periphery; The pars intermedia of described silica gel vibrating diaphragm is combined with reinforcement part, and wherein, described silica gel vibrating diaphragm comprises the silica gel of two kinds or two or more hardness; Described ring portion is different from the hardness of described reinforcement part, and the hardness of described reinforcement part is greater than the hardness in described ring portion; The described silica gel of different hardness is combined closely, injection moulding sulfidization molding.
Preferably, described ring portion and described reinforcement part all can adopt silica gel that is a kind of and more than one hardness; Accordingly, described silica gel vibrating diaphragm is the combination of the silica gel of two or more different hardness.
Preferably, described silica gel vibrating diaphragm, by the silica gel injection mo(u)lding of two kinds of different hardness, comprises strong hardness silica gel and soft durometer silica gel.
Preferably, described ring portion adopts described soft durometer silica gel; Described reinforcement part adopts described strong hardness silica gel, and is incorporated into the end regions of described reinforcement part with described soft durometer silica gel.
Preferably, described ring portion adopts described soft durometer silica gel; Described reinforcement part comprises described soft durometer silica gel and described strong hardness silica gel, and forms joint portion on the thickness direction of described reinforcement part; The distance of the side, left and right of described joint portion is the horizontal length of described reinforcement part; Described soft durometer silica gel and described strong hardness silica gel are uniformly distributed in the both sides of described joint portion.
Preferably, described reinforcement part adopts described strong hardness silica gel; Described ring portion adopts described soft durometer silica gel, and is incorporated into the end regions of the close described reinforcement part in described ring portion with described strong hardness silica gel.
Preferably, described ring portion adopts described soft durometer silica gel; Described reinforcement part adopts described strong hardness silica gel; Described strong hardness silica gel and described soft durometer silica gel form joint portion on the thickness direction of described silica gel vibrating diaphragm; Described joint portion is positioned at the end regions be connected of described ring portion and described reinforcement part simultaneously.
Preferably, the hardness range of described strong hardness silica gel is 60-90 degree; Described soft durometer silica gel hardness range is 30-70 degree.
Preferably, the accounting of described soft durometer silica gel and described strong hardness silica gel is closed is 1:1.5 or 1:2.
Preferably, described silica gel vibrating diaphragm adopts the machine-shaping of plastic double-color Shooting Technique.
After have employed technique scheme, the beneficial effects of the utility model are:
Because silica gel vibrating diaphragm adopts the silica gel injection moulding sulfidization molding of two kinds or two or more different hardness, can make shaping after vibrating diaphragm be two kinds or two or more different hardness; In diaphragm structure, the acoustical behavior at corresponding low frequency place, ring region, the acoustical behavior of reinforcement part then corresponding high frequency treatment, in this technical scheme, the hardness in ring portion is different with the hardness of reinforcement part, and the hardness of reinforcement part is greater than the hardness in ring portion, this kind adopts the design of the silica gel of different hardness according to the zones of different of vibrating diaphragm, can adjust the acoustical behavior of corresponding band.Specifically, ring portion adopts the silica gel that hardness is lower, can reduce resonance frequency (F 0), and reinforcement part adopts the silica gel that hardness is higher, then can promote higher frequency response, thus accomplish that low-and high-frequency is taken into account, improve the acoustical behavior of product on the whole.
Silica gel due to different hardness is incorporated into the end regions of ring portion or reinforcement part, after voice coil loudspeaker voice coil and vibrating diaphragm centre position bond, when voice coil loudspeaker voice coil is subjected to displacement under electromagnetic field effect, certain fixation can be played to voice coil loudspeaker voice coil, this kind of design is more optimized, voice coil loudspeaker voice coil difficult drop-off.
According to the needs of current product acoustical behavior adjustment, it is 1:1.5 or 1:2 that the accounting of soft durometer silica gel and strong hardness silica gel is closed, and ensures that silica gel vibrating diaphragm has certain intensity on the whole, avoids it to occur the problems such as distortion when vibrating.
In sum, the technical program adopts the silica gel of different hardness according to acoustical behavior index corresponding to vibrating diaphragm zones of different, both can reduce resonance frequency, also can promote higher frequency response, can the acoustical behavior of optimizing product, can be applicable in the silica gel vibrating diaphragm of injection mo(u)lding.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of silica gel diaphragm structure of the present utility model;
Fig. 2 is the explosive view of silica gel diaphragm structure of the present utility model;
Fig. 3 is the cutaway view of the silica gel diaphragm structure of the utility model embodiment one;
Fig. 4 is the partial enlarged drawing of part A in Fig. 3;
Fig. 5 is the cutaway view of the silica gel diaphragm structure of the utility model embodiment two;
Fig. 6 is the partial enlarged drawing of part B in Fig. 5;
Fig. 7 is the cutaway view of the silica gel diaphragm structure of the utility model embodiment three;
Fig. 8 is the partial enlarged drawing of C part in Fig. 7;
Fig. 9 is the cutaway view of the silica gel diaphragm structure of the utility model embodiment four;
Figure 10 is the partial enlarged drawing of D part in Fig. 9;
Reference numeral wherein comprises: 1, ring portion, and 2, reinforcement part, 3, soft durometer silica gel, 4, strong hardness silica gel, 5, joint portion, 51, joint portion, 6, point of interface, 7, pars intermedia.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model content in detail:
Embodiment one:
As depicted in figs. 1 and 2, silica gel vibrating diaphragm of the present utility model comprises pars intermedia 7 and is surrounded on the ring portion 1 of pars intermedia 7 periphery, the pars intermedia 7 of silica gel vibrating diaphragm is combined with reinforcement part 2, wherein, ring portion 1 and reinforcement part 2 are responsible for the acoustics index of different frequency respectively, ring portion 1 is responsible for low frequency, and high frequency is then responsible in reinforcement part.As Fig. 3 and Fig. 4 jointly shown in, the silica gel vibrating diaphragm of present embodiment comprises the silica gel of two kinds of hardness, i.e. soft durometer silica gel 3 (being grid shadow mark in diagram) and strong hardness silica gel 4 (being diagonal line hatches mark in diagram), the silica gel of two kinds of different hardness is by injection moulding sulfidization molding.
As shown in Figure 4, ring portion 1 is different with the hardness of reinforcement part 2, and ring portion 1 adopts soft durometer silica gel 3, and reinforcement part adopts strong hardness silica gel 4, therefore the hardness of reinforcement part 2 is greater than the hardness in ring portion 1, and the demand of this acoustics index corresponding respectively with the two is coincide.
As Fig. 3 and Fig. 4 jointly shown in, the silica gel of two kinds of different hardness of present embodiment is incorporated into the end regions of reinforcement part 2.Soft durometer silica gel 3 and strong hardness silica gel 4 adopt the technique of plastic double-color injection moulding to carry out injection molding, soft durometer silica gel 3 first injection mo(u)lding, then injection moulding strong hardness silica gel 4, itself and soft durometer silica gel 3 are combined closely, one integrated mass; Or first by strong hardness silica gel 4 injection mo(u)lding, then injection moulding soft durometer silica gel 3, makes itself and strong hardness silica gel 4 combine closely.It should be noted that, silica gel vibrating diaphragm of the present utility model, the mode of different hardness silica gel mixed-forming is not limited to the technique of above-mentioned double-shot moulding, and can also be other similar injection molding techniques, as long as it can make, the silica gel of different hardness be combined closely, sulfidization molding.
In present embodiment, ring portion 1 and reinforcement part 2 all can adopt silica gel that is a kind of and more than one hardness, corresponding, silica gel vibrating diaphragm can be the combination of the silica gel of two or more different hardness, but no matter silica gel vibrating diaphragm comprises the silica gel of several hardness, and the hardness that all should meet reinforcement part 2 is greater than this condition of hardness in ring portion 1.
Preferably, the hardness range of strong hardness silica gel 4 is 60-90 degree, and the hardness range of soft durometer silica gel 3 is 30-70 degree, and two kinds of silica gel can combine in above-mentioned hardness range, but the hardness that should meet reinforcement part 2 is greater than this condition of hardness in ring portion 1.
Preferably, it is 1:1.5 or 1:2 that soft durometer silica gel 3 closes with the accounting of strong hardness silica gel 4, i.e. the silica gel vibrating diaphragm of present embodiment, the overlay area of strong hardness silica gel 4 should be greater than the overlay area of soft durometer silica gel 3.
Embodiment two:
Present embodiment is substantially identical with embodiment one, and its difference is:
Reinforcement part 2 comprises soft durometer silica gel 3 and strong hardness silica gel 4, and on the thickness direction of reinforcement part 2, form joint portion 5, the distance of the side, left and right of joint portion 5 is the horizontal length of reinforcement part 2, and soft durometer silica gel 3 and strong hardness silica gel 4 are uniformly distributed in the both sides of joint portion 5.
Embodiment three:
Present embodiment is substantially identical with embodiment one, and its difference is:
Strong hardness silica gel 4 and soft durometer silica gel 3 are incorporated into the end regions in ring portion 1.
Embodiment four:
Present embodiment is substantially identical with embodiment two, and its difference is:
Strong hardness silica gel 4 and soft durometer silica gel 3 form joint portion 51 on the thickness direction of silica gel vibrating diaphragm; Joint portion 51 is positioned at the end regions be connected of ring portion 1 and reinforcement part 2 simultaneously.
In above-mentioned four embodiments, definition ring portion 1 and direction, reinforcement part 2 are XY direction, the thickness direction of definition silica gel vibrating diaphragm is Z-direction, can find out, embodiment one and embodiment three are the combination of silica gel on XY direction of two kinds of different hardness, but because of the difference of the two position, joint portion, under other conditions prerequisite always, the silica gel vibrating diaphragm intensity of embodiment three is the highest, and the acoustical behavior of high frequency treatment is best; Embodiment two is the combination of Z-direction, and the short transverse of silica gel in reinforcement part 2 of two kinds of different hardness combines, and the silica gel vibrating diaphragm intensity of the present embodiment is minimum, but compliance is best; Embodiment four is the combination of XY direction and Z-direction.
It should be noted that, more than be only used to set forth the technical program and the exemplary illustration that carries out, silica gel vibrating diaphragm of the present utility model, the mode of the position that the silica gel of different hardness combines and distribution is not limited to above-mentioned four execution modes, the silica gel of such as different hardness can also be incorporated into the point of interface 6 of ring portion 1 and reinforcement part 2, this kind of execution mode, when concrete operations, more should be noted fixing voice coil loudspeaker voice coil (not shown), come off when preventing it to be subjected to displacement variation.
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 silica gel vibrating diaphragm, comprises pars intermedia and the ring portion being surrounded on described pars intermedia periphery; The pars intermedia of described silica gel vibrating diaphragm is combined with reinforcement part, it is characterized in that: described silica gel vibrating diaphragm comprises the silica gel of two kinds or two or more hardness; Described ring portion is different from the hardness of described reinforcement part, and the hardness of described reinforcement part is greater than the hardness in described ring portion; The described silica gel of different hardness is combined closely, injection moulding sulfidization molding.
2. silica gel vibrating diaphragm according to claim 1, is characterized in that: described ring portion and described reinforcement part all can adopt silica gel that is a kind of and more than one hardness; Accordingly, described silica gel vibrating diaphragm is the combination of the silica gel of two or more different hardness.
3. silica gel vibrating diaphragm according to claim 2, is characterized in that: described silica gel vibrating diaphragm, by the silica gel injection mo(u)lding of two kinds of different hardness, comprises strong hardness silica gel and soft durometer silica gel.
4. silica gel vibrating diaphragm according to claim 3, is characterized in that: described ring portion adopts described soft durometer silica gel; Described reinforcement part adopts described strong hardness silica gel, and is incorporated into the end regions of described reinforcement part with described soft durometer silica gel.
5. silica gel vibrating diaphragm according to claim 3, is characterized in that: described ring portion adopts described soft durometer silica gel; Described reinforcement part comprises described soft durometer silica gel and described strong hardness silica gel, and forms joint portion on the thickness direction of described reinforcement part; The distance of the side, left and right of described joint portion is the horizontal length of described reinforcement part; Described soft durometer silica gel and described strong hardness silica gel are uniformly distributed in the both sides of described joint portion.
6. silica gel vibrating diaphragm according to claim 3, is characterized in that: described reinforcement part adopts described strong hardness silica gel; Described ring portion adopts described soft durometer silica gel, and is incorporated into the end regions of the close described reinforcement part in described ring portion with described strong hardness silica gel.
7. silica gel vibrating diaphragm according to claim 3, is characterized in that: described ring portion adopts described soft durometer silica gel; Described reinforcement part adopts described strong hardness silica gel; Described strong hardness silica gel and described soft durometer silica gel form joint portion on the thickness direction of described silica gel vibrating diaphragm; Described joint portion is positioned at the end regions be connected of described ring portion and described reinforcement part simultaneously.
8. silica gel vibrating diaphragm according to claim 3, is characterized in that: the hardness range of described strong hardness silica gel is 60-90 degree; Described soft durometer silica gel hardness range is 30-70 degree.
9. silica gel vibrating diaphragm according to claim 3, is characterized in that: it is 1:1.5 or 1:2 that the accounting of described soft durometer silica gel and described strong hardness silica gel is closed.
10. silica gel vibrating diaphragm according to claim 3, is characterized in that: described silica gel vibrating diaphragm adopts the machine-shaping of plastic double-color Shooting Technique.
CN201520236652.5U 2015-04-17 2015-04-17 Silica gel vibrating diaphragm Active CN204616077U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107708051A (en) * 2017-10-23 2018-02-16 歌尔股份有限公司 Preparation method, the diaphragm of loudspeaker and the loudspeaker monomer of the diaphragm of loudspeaker
CN110166900A (en) * 2019-04-25 2019-08-23 歌尔股份有限公司 Vibrating diaphragm, its production method and the sounding device including the vibrating diaphragm

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107708051A (en) * 2017-10-23 2018-02-16 歌尔股份有限公司 Preparation method, the diaphragm of loudspeaker and the loudspeaker monomer of the diaphragm of loudspeaker
CN110166900A (en) * 2019-04-25 2019-08-23 歌尔股份有限公司 Vibrating diaphragm, its production method and the sounding device including the vibrating diaphragm
CN110166900B (en) * 2019-04-25 2021-03-30 歌尔股份有限公司 Vibrating diaphragm, manufacturing method thereof and sound production device comprising vibrating diaphragm

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C14 Grant of patent or utility model
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.

C56 Change in the name or address of the patentee