CN205320268U

CN205320268U - Silica gel vibrating diaphragm

Info

Publication number: CN205320268U
Application number: CN201520872266.5U
Authority: CN
Inventors: 刘光磊; 袁静; 郭家翔
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2015-11-04
Filing date: 2015-11-04
Publication date: 2016-06-15
Anticipated expiration: 2025-11-04

Abstract

The utility model discloses a silica gel vibrating diaphragm, silica gel vibrating diaphragm injection moulding's as an organic whole three -layer composite structure, include the intermediate level and combine respectively in the first skin and the second skin of intermediate level both sides that the intermediate level is silica gel material / macromolecular material layer, first skin and second skin are the silica gel material to, constitute first skin the same with the outer silica gel material of second / difference. The utility model discloses a silica gel vibrating diaphragm, its damping is bigger, can effectively restrain resonance, reduces the product distortion, further guarantees the performance of speaker product.

Description

Silica gel vibrating diaphragm

Technical field

This utility model relates to electroacoustic field, is specifically related to a kind of silica gel vibrating diaphragm.

Background technology

Speaker, as a kind of device that can convert electrical energy into acoustic energy, is now widely used in the mobile terminal apparatus such as mobile phone, computer, PDA. speaker is as basic phonation unit, and vibrating diaphragm is very important parts, and the quality of its performance often affects the acoustical behavior of speaker product. along with science and technology and the developing rapidly of electron trade, people it is also proposed increasingly higher requirement for the performance of speaker product, some traditional diaphragm materials have not adapted to the higher market demand, and in the process that diaphragm materials is improved, silica gel material becomes a kind of novel, apply more and more general material, the pliable of vibrating diaphragm itself can be improved mainly due to silica gel material, simultaneously, its stability is higher, it is greatly improved heat resistance and the environmental stability of vibrating diaphragm, when speaker works long hours or is operated under relatively high power, vibrating diaphragm not easily lost efficacy because temperature is too high. from above-mentioned aspect, silica gel vibrating diaphragm is compared to some traditional diaphragm materials, and its performance is better, reliability is higher. but, many tests are it has been shown that the internal damping coefficient of silica gel material is relatively low, and this limits it to a certain extent in the Rapid Popularization of speaker industry and application.

Utility model content

Technical problem to be solved in the utility model is: provide a kind of novel silica gel diaphragm structure, by designing the structure including at least two Different Silicon glue material, increases damping, makes up existing silica gel vibrating diaphragm defect in this regard.

To achieve these goals, this utility model is by the following technical solutions: a kind of silica gel vibrating diaphragm, wherein, described silica gel vibrating diaphragm is integrated the three-layer composite structure of injection mo(u)lding, including intermediate layer and respectively in connection with the first outer layer in both sides, described intermediate layer and the second outer layer; Described intermediate layer is silica gel material/polymer material layer; Described first outer layer and described second outer layer are silica gel material, and, form described first outer layer identical with the silica gel material of described second outer layer/different.

Improving as one, described silica gel vibrating diaphragm includes the silica gel material that at least two is different.

Improving as one, described intermediate layer is silica gel material; The silica gel material of described first outer layer and described second outer layer can be the same or different, and all different from the silica gel material in described intermediate layer.

Improving as one, described intermediate layer is polymer material layer;Described first outer layer is different from the silica gel material of described second outer layer.

Improving as one, described polymer material layer is polyether-ether-ketone or polyethylene terephthalate or PEN.

Improving as one, the hardness of described first outer layer and described second outer layer is more than the hardness in described intermediate layer.

Improving as one, described vibrating diaphragm is arch.

Compared to existing technologies, silica gel vibrating diaphragm of the present utility model is integrated the three-layer composite structure of injection mo(u)lding, including intermediate layer and respectively in connection with the first outer layer in both sides, intermediate layer and the second outer layer, and the silica gel material different by least two is made, the silica gel diaphragm structure of this structure, it often has bigger structural damping, can effectively make up the inferior position that existing silica gel vibrating diaphragm internal damping coefficient is relatively low, it is effectively improved the phenomenon that the resonance caused because of relatively low damped coefficient is stronger, reduces product distortion.

Accompanying drawing explanation

Fig. 1 is the part-structure schematic diagram of this utility model silica gel vibrating diaphragm;

Fig. 2 is the sectional view of this utility model silica gel diaphragm structure;

Fig. 3 is the enlarged drawing of H part in Fig. 2;

Accompanying drawing labelling therein includes: 1, intermediate layer, the 2, first outer layer, the 3, second outer layer.

Detailed description of the invention

Below in conjunction with accompanying drawing, describe this utility model content in detail:

Embodiment:

Consult Fig. 1, Fig. 2 and Fig. 3 jointly shown in, silica gel vibrating diaphragm of the present utility model is three-layer composite structure, specifically include the intermediate layer 1 being positioned at inner side and the first outer layer 2 and the second outer layer 3 respectively in connection with the both sides in intermediate layer 1, the problem relatively low in order to improve existing silica gel vibrating diaphragm internal damping coefficient, silica gel vibrating diaphragm of the present utility model includes at least two in order to the silica gel material of molding, specifically, it is possible to include following several specific embodiment:

One, intermediate layer 1 is a kind of silica gel material A, first outer layer 2 and the second outer layer 3 are silica gel material, but it is all different from the silica gel material A in intermediate layer 1, it is to say, the first outer layer 2 and the second outer layer 3 can be silica gel material B simultaneously, or, first outer layer 2 is silica gel material B, and the second outer layer 3 is silica gel material C. Obviously, when intermediate layer 1 is silica gel material, the silica gel material of the first outer layer 2 and the second outer layer 3 can be the same or different, it is preferred to the silica gel material that characteristic is same or like.

They are two years old, intermediate layer 1 is other macromolecular materials, one in such as polyether-ether-ketone (PEEK) or polyethylene terephthalate (PET) or PEN (PEN), it is of course also possible to be other macromolecular material; Now, the first outer layer 2 and the second outer layer 3 are silica gel material, and, the silica gel material of the first outer layer 2 and the second outer layer 3 is same scarcely, if it is to say, the first outer layer 2 is silica gel material A, then, second outer layer 3 is silica gel material B or C, in a word, different from silica gel material A.

Passing through technique scheme, it is possible to increase the damping of the silica gel vibrating diaphragm of this kind of structure, effectively control the resonance of product, reducing distortion, it is ensured that the performance of speaker product, thus making up silica gel vibrating diaphragm defect in this regard in prior art.

When being embodied as, owing between different materials, the complexity of compound is different, and the compound that the compound phase between silica gel material not of the same race is to be prone between silica gel material and macromolecular material, therefore, in consideration of it, silica gel vibrating diaphragm of the present utility model is preferably intermediate layer the 1, first outer layer 2 and the second outer layer 3 is the composite construction of silica gel material.Furthermore, it is contemplated that the compound of silica gel material not of the same race there may be different dampings, can determine according to practical situation during enforcement. Furthermore, it is preferred that a kind of embodiment is, is positioned at first outer layer 2 in outside and the silica gel material of the second outer layer 3 material compared to intermediate layer 1, and its hardness is bigger.

During enforcement, owing to silica gel vibrating diaphragm of the present utility model includes the silica gel material that at least two is different, thus first molding can being positioned at the intermediate layer 1 of inner side core layer, then molding the first outer layer 2 and the second outer layer 3, different several silica gel materials can integrated injection molding.

It should be noted that, shown in present embodiment is the silica gel diaphragm structure of a kind of arch, it practice, the enforcement of the technical program is not limited to this kind of vibrating diaphragm shape, for the silica gel vibrating diaphragm of other shapes, such as rectangle, ellipse or track type etc. are all equally applicable.

These are only this utility model case study on implementation, be not limited to this utility model, as long as those of ordinary skill in the art modify or change according to the equivalence that this utility model disclosure is made, all should include in the protection domain recorded in claims.

Claims

1. a silica gel vibrating diaphragm, it is characterised in that: described silica gel vibrating diaphragm is integrated the three-layer composite structure of injection mo(u)lding, including intermediate layer and respectively in connection with the first outer layer in both sides, described intermediate layer and the second outer layer; Described intermediate layer is silica gel material/polymer material layer; Described first outer layer and described second outer layer are silica gel material, and, form described first outer layer identical with the silica gel material of described second outer layer/different.

2. silica gel vibrating diaphragm according to claim 1, it is characterised in that: described silica gel vibrating diaphragm includes the silica gel material that at least two is different.

3. silica gel vibrating diaphragm according to claim 1, it is characterised in that: described intermediate layer is silica gel material; The silica gel material of described first outer layer and described second outer layer can be the same or different, and all different from the silica gel material in described intermediate layer.

4. silica gel vibrating diaphragm according to claim 1, it is characterised in that: described intermediate layer is polymer material layer; Described first outer layer is different from the silica gel material of described second outer layer.

5. silica gel vibrating diaphragm according to claim 4, it is characterised in that: described polymer material layer is polyether-ether-ketone or polyethylene terephthalate or PEN.

6. silica gel vibrating diaphragm according to claim 1, it is characterised in that: the hardness of described first outer layer and described second outer layer is more than the hardness in described intermediate layer.

7. silica gel vibrating diaphragm according to claim 1, it is characterised in that: described vibrating diaphragm is arch.