Vibrating film and vibrating film assembling process

Abstract

Disclosed is a vibrating film comprising a vibrating film body, wherein the vibrating film body comprises a central plane part and a peripheral fixing part. A Dome reinforcing part is arranged on the plane part, a first thermosetting adhesive layer is provided between the plane part and the Dome reinforcing part, and the plane part and the Dome reinforcing part are adhered together by thermosetting through the first thermosetting adhesive layer. Further disclosed is an assembling process for the vibrating film.

Claims

1. A vibrating diaphragm comprising: a vibrating diaphragm body comprising a plane part at central portion and a fixing part at a peripheral portion, wherein a Dome reinforcing part is provided on the plane part and a first thermosetting adhesive layer is provided between the plane part and the Dome reinforcing part, wherein the plane part and the Dome reinforcing part are adhered together by thermally curing the first thermosetting adhesive layer, and wherein a fixing ring is provided on the fixing part, a second thermostetting adhesive layer is provided between the fixing part and the fixing ring, and the fixing part and the fixing ring are adhered together by thermally curing the second thermosetting adhesive layer.

2. The vibrating diaphragm of claim 1, wherein each of the first thermosetting adhesive layer and the second thermosetting adhesive layer is a thermosetting adhesive pad.

3. The vibrating diaphragm of claim 2, wherein the thermosetting adhesive pad is a thermosetting adhesive pad made of one of a epoxy resin material and a polyimide resin material.

4. The vibrating diaphragm of claim 1, wherein the fixing ring is made of metallic material.

5. The vibrating diaphragm of claim 4, wherein the fixing ring is made of one of steel and copper.

6. An assembling process for the vibrating diaphragm of claim 1 comprising: preparing a molding base for the vibrating diaphragm; providing the Dome reinforcing part on the molding base for the vibrating diaphragm; providing a fixing ring on the molding base for the vibrating diaphragm; providing the first thermosetting adhesive layer on the Dome reinforcing part; providing the second thermosetting adhesive layer on the fixing ring; providing a material belt of the vibrating diaphragm above the Dome reinforcing part; adhering the Dome reinforcing part with the material belt of the vibrating diaphragm by thermally curing the first thermosetting adhesive layer under high temperature and high pressure; wherein the Dome reinforcing part and the material belt of the vibrating diaphragm are adhered together by thermally curing the first thermosetting adhesive layer, and the fixing ring and material belt of the vibrating diaphragm are adhered together by thermally curing the second thermosetting adhesive layer under high temperature and high pressure, such that the fixing ring, the material belt of the vibrating diaphragm; and the Dome reinforcing part are adhered as an integral structure to form the vibrating diaphragm; and blanking a profile of the vibrating diaphragm using a blanking die cutter to form the vibrating diaphragm, wherein the material belt of the vibrating diaphragm forms the vibrating diaphragm body.

7. The assembling process of claim 6, wherein each of the first thermosetting adhesive layer and the second thermosetting adhesive layer is a thermosetting adhesive pad.

8. The assembling process of claim 6, wherein the fixing ring is a fixing ring is made of metallic material.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) Hereinafter, the present invention will be further described with reference to the accompanying drawings and embodiments.

(2) FIG. 1 is a schematic structural view of a vibrating diaphragm in the present invention.

(3) FIG. 2 is an exploded view of FIG. 1.

(4) FIG. 3 is a front schematic structural view of FIG. 1.

(5) FIG. 4 is an enlarged schematic view of part A of FIG. 1.

(6) In the drawings: 1, vibrating diaphragm body; 11, plane part; 12, fixing part; 2, first thermosetting adhesive pad; 3, fixing ring; 4, second thermosetting pad; 5, dome reinforcing part.

DETAILED DESCRIPTION OF EMBODIMENTS

(7) The present invention is further described in detail with regard to accompanying drawings and embodiments in order to make the objectives, technical solutions and advantages of the present invention more clear. It will be understood that the described particular embodiments are only used for explaining the present invention, but not for limiting the present invention.

(8) Referring to FIGS. 1, 2, 3 and 4, a vibrating diaphragm comprises a vibrating diaphragm body 1. The vibrating diaphragm body 1 comprises a central plane part 11 and a peripheral fixing part 12. A Dome reinforcing part 5 for reinforcing rigidity is provided on the plane part 11. A fixing ring 3 for reinforcing strength is provided on the fixing part 12. A first thermosetting adhesive pad 2 is provided between the plane part 11 of the vibrating diaphragm body 1 and the Dome reinforcing part 5. The plane part 11 of the vibrating diaphragm body and the Dome reinforcing part 5 are adhered together by thermally curing the first thermosetting adhesive pad 2. A second thermosetting adhesive pad 4 is provided between the vibrating diaphragm body 1 and the fixing ring 3, and the fixing part 12 of the vibrating diaphragm body 1 and the fixing ring 3 are adhered together by thermally curing the second thermosetting adhesive pad 4.

(9) Wherein, the first thermosetting adhesive pad 2 and the second thermosetting adhesive pad 4 may be replaced by sprinkling a layer of liquid thermosetting adhesive.

(10) In the present embodiment, the thermosetting adhesive pad is made of epoxy resin material, and in the practical application, polyimide resin material or other material may be used as well.

(11) In the present embodiment, the fixing ring 3 is a fixing ring made of steel material. However, a fixing ring made of other metal material may be used as well.

(12) An assembling process for the above-mentioned vibrating diaphragm comprises the following steps:

(13) step (a): preparing a molding base for the vibrating diaphragm, and providing the fixing ring 3 and the Dome reinforcing part 5 on the molding base for the vibrating diaphragm;

(14) step (b): providing the first thermosetting adhesive pad 2 on the fixing ring 3, and providing the second thermosetting adhesive pad 4 on the Dome reinforcing part 5;

(15) step (c): providing a material belt of the vibrating diaphragm above the fixing ring 3 and the Dome reinforcing part 5;

(16) step (d): adhering the fixing ring 3 and the material belt of the vibrating diaphragm together by thermally curing the first thermosetting adhesive pad 2, and adhering the Dome reinforcing part 5 and the material belt of the vibrating diaphragm together by thermally curing the second thermosetting adhesive pad 4 utilizing high temperature and high pressure, such that the fixing ring 3, the material belt of the vibrating diaphragm and the Dome reinforcing part 5 are adhered as an integral structure; and

(17) step (e): blanking the profile of the vibrating diaphragm using a blanking die cutter to form the vibrating diaphragm, wherein the vibrating diaphragm body 1 is formed by the material belt of the vibrating diaphragm.

(18) Wherein, the fixing ring 3 is a fixing ring made of steel material.

(19) In the vibrating diaphragm and the assembling process for the vibrating diaphragm according to the present invention, during the production process, the vibrating diaphragm body 1 and the Dome reinforcing part 5 as well as the vibrating diaphragm body 1 and the fixing ring 3 are adhered together in the molding process of the vibrating diaphragm, by adhering the vibrating diaphragm body 1 and the Dome reinforcing part 5 together by thermally curing the first thermosetting adhesive pad 2, and adhering the vibrating diaphragm body 1 and the fixing ring 3 together by thermally curing the second thermosetting adhesive pad 4 utilizing high temperature and high pressure generated when molding the vibrating diaphragm without respectively adhering the vibrating diaphragm body 1 with the Dome reinforcing part 5 and the fixing ring 3, thereby improving the production efficiency of the products.

(20) In addition, the vibrating diaphragm body 1 and the Dome reinforcing part 5, as well as the vibrating diaphragm body 1 and the fixing ring 3 are adhered together by thermally curing thermosetting adhesive pads, thereby greatly improving the adhesive strength between the vibrating diaphragm body 1 and the Dome reinforcing part 5, as well as the vibrating diaphragm body 1 and the fixing ring 3, and improving the reliability of the products. At the same time, the hardness of the adhered adhesive pads may be adjusted by choosing different thermosetting adhesive materials or process parameters as required, so as to achieve secondary hardening of the Dome reinforcing part 5 and improve the rigidity of the Dome reinforcing part 5, thereby improving the rigidity of the vibrating diaphragm. When the vibrating diaphragm with such a configuration is applied to an electroacoustic product such as a speaker, it is possible to improve the rigidity of the vibrating diaphragm and reduce the transverse vibration of the vibrating diaphragm, thereby reducing the internal loss in the vibrating diaphragm, and improving the ability of radiating sound wave, the high-frequency characteristic of the product, the sound quality, and the acoustic performance of the product.

(21) The foregoing are examples of preferred embodiments of the present invention in which those not described in detail are well known to those skilled in the art. The scope of protection of the present invention is subject to the scope of the claims, and any equivalent transformation based on the technical enlightenment of the present invention also falls into the scope of the present invention.